From 1caab3c1a90be3aa4ec3599409d8fe044b077478 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Wed, 4 Nov 2009 14:17:53 -0500 Subject: wmi: Add support for module autoloading WMI provides interface-specific GUIDs that are exported from modules as modalises, but the core currently generates no events to trigger module loading. This patch adds support for registering devices for each WMI GUID and generating the appropriate uevent. Based heavily on a patch by Carlos Corbacho (). Signed-off-by: Matthew Garrett Tested-by: Carlos Corbacho Acked-by: Carlos Corbacho Signed-off-by: Len Brown --- drivers/platform/x86/wmi.c | 175 ++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 173 insertions(+), 2 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 177f8d767df4..e425a868cd3a 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include @@ -65,6 +66,7 @@ struct wmi_block { acpi_handle handle; wmi_notify_handler handler; void *handler_data; + struct device *dev; }; static struct wmi_block wmi_blocks; @@ -195,6 +197,34 @@ static bool wmi_parse_guid(const u8 *src, u8 *dest) return true; } +/* + * Convert a raw GUID to the ACII string representation + */ +static int wmi_gtoa(const char *in, char *out) +{ + int i; + + for (i = 3; i >= 0; i--) + out += sprintf(out, "%02X", in[i] & 0xFF); + + out += sprintf(out, "-"); + out += sprintf(out, "%02X", in[5] & 0xFF); + out += sprintf(out, "%02X", in[4] & 0xFF); + out += sprintf(out, "-"); + out += sprintf(out, "%02X", in[7] & 0xFF); + out += sprintf(out, "%02X", in[6] & 0xFF); + out += sprintf(out, "-"); + out += sprintf(out, "%02X", in[8] & 0xFF); + out += sprintf(out, "%02X", in[9] & 0xFF); + out += sprintf(out, "-"); + + for (i = 10; i <= 15; i++) + out += sprintf(out, "%02X", in[i] & 0xFF); + + out = '\0'; + return 0; +} + static bool find_guid(const char *guid_string, struct wmi_block **out) { char tmp[16], guid_input[16]; @@ -554,6 +584,138 @@ bool wmi_has_guid(const char *guid_string) } EXPORT_SYMBOL_GPL(wmi_has_guid); +/* + * sysfs interface + */ +static ssize_t show_modalias(struct device *dev, struct device_attribute *attr, + char *buf) +{ + char guid_string[37]; + struct wmi_block *wblock; + + wblock = dev_get_drvdata(dev); + if (!wblock) + return -ENOMEM; + + wmi_gtoa(wblock->gblock.guid, guid_string); + + return sprintf(buf, "wmi:%s\n", guid_string); +} +static DEVICE_ATTR(modalias, S_IRUGO, show_modalias, NULL); + +static int wmi_dev_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + char guid_string[37]; + + struct wmi_block *wblock; + + if (add_uevent_var(env, "MODALIAS=")) + return -ENOMEM; + + wblock = dev_get_drvdata(dev); + if (!wblock) + return -ENOMEM; + + wmi_gtoa(wblock->gblock.guid, guid_string); + + strcpy(&env->buf[env->buflen - 1], "wmi:"); + memcpy(&env->buf[env->buflen - 1 + 4], guid_string, 36); + env->buflen += 40; + + return 0; +} + +static void wmi_dev_free(struct device *dev) +{ + kfree(dev); +} + +static struct class wmi_class = { + .name = "wmi", + .dev_release = wmi_dev_free, + .dev_uevent = wmi_dev_uevent, +}; + +static int wmi_create_devs(void) +{ + int result; + char guid_string[37]; + struct guid_block *gblock; + struct wmi_block *wblock; + struct list_head *p; + struct device *guid_dev; + + /* Create devices for all the GUIDs */ + list_for_each(p, &wmi_blocks.list) { + wblock = list_entry(p, struct wmi_block, list); + + guid_dev = kzalloc(sizeof(struct device), GFP_KERNEL); + if (!guid_dev) + return -ENOMEM; + + wblock->dev = guid_dev; + + guid_dev->class = &wmi_class; + dev_set_drvdata(guid_dev, wblock); + + gblock = &wblock->gblock; + + wmi_gtoa(gblock->guid, guid_string); + dev_set_name(guid_dev, guid_string); + + result = device_register(guid_dev); + if (result) + return result; + + result = device_create_file(guid_dev, &dev_attr_modalias); + if (result) + return result; + } + + return 0; +} + +static void wmi_remove_devs(void) +{ + struct guid_block *gblock; + struct wmi_block *wblock; + struct list_head *p; + struct device *guid_dev; + + /* Delete devices for all the GUIDs */ + list_for_each(p, &wmi_blocks.list) { + wblock = list_entry(p, struct wmi_block, list); + + guid_dev = wblock->dev; + gblock = &wblock->gblock; + + device_remove_file(guid_dev, &dev_attr_modalias); + + device_unregister(guid_dev); + } +} + +static void wmi_class_exit(void) +{ + wmi_remove_devs(); + class_unregister(&wmi_class); +} + +static int wmi_class_init(void) +{ + int ret; + + ret = class_register(&wmi_class); + if (ret) + return ret; + + ret = wmi_create_devs(); + if (ret) + wmi_class_exit(); + + return ret; +} + /* * Parse the _WDG method for the GUID data blocks */ @@ -709,10 +871,17 @@ static int __init acpi_wmi_init(void) if (result < 0) { printk(KERN_INFO PREFIX "Error loading mapper\n"); - } else { - printk(KERN_INFO PREFIX "Mapper loaded\n"); + return -ENODEV; + } + + result = wmi_class_init(); + if (result) { + acpi_bus_unregister_driver(&acpi_wmi_driver); + return result; } + printk(KERN_INFO PREFIX "Mapper loaded\n"); + return result; } @@ -721,6 +890,8 @@ static void __exit acpi_wmi_exit(void) struct list_head *p, *tmp; struct wmi_block *wblock; + wmi_class_exit(); + acpi_bus_unregister_driver(&acpi_wmi_driver); list_for_each_safe(p, tmp, &wmi_blocks.list) { -- cgit v1.2.3 From a9f8eacca4e9e8693de9b896c1fa7aadaa9402e8 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Wed, 9 Dec 2009 01:36:21 +0000 Subject: thinkpad-acpi: fix default brightness_mode for R50e/R51 According to a report, the R50e wants EC-based brightness control, even if it uses an Intel GPU. The current driver default was reported to not work at all. This bug can be worked around by the "brightness_mode=3" module parameter. Change the default of the R50e and R51 2xxx models (which use the same EC firmware, 1V) to TPACPI_BRGHT_Q_EC, but keep TPACPI_BRGHT_Q_ASK set for now, as I'd like to get more reports. This fixes a regression caused by commit 59fe4fe34d7afdf63208124f313be9056feaa2f4, "thinkpad-acpi: fix incorrect use of TPACPI_BRGHT_MODE_ECNVRAM" Kernel 2.6.31 also needs this fix. Reported-by: Ferenc Wagner Tested-by: Ferenc Wagner Signed-off-by: Henrique de Moraes Holschuh Cc: stable@kernel.org Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index a848c7e20aeb..9c6d5a929e96 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -6123,8 +6123,8 @@ static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { /* Models with Intel Extreme Graphics 2 */ TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), - TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC), - TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC), + TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), + TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), /* Models with Intel GMA900 */ TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ -- cgit v1.2.3 From 208b996b6c460285650d39b2330f8ef82c007d10 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Wed, 9 Dec 2009 01:36:22 +0000 Subject: thinkpad-acpi: preserve rfkill state across suspend/resume Since the rfkill rework in 2.6.31, the driver is always resuming with the radios disabled. Change thinkpad-acpi to ask the firmware to resume with the radios in the last state. This fixes the Bluetooth and WWAN rfkill switches. Note that it means we respect the firmware's oddities. Should the user toggle the hardware rfkill switch on and off, it might cause the radios to resume enabled. UWB is an unknown quantity since it has nowhere the same level of firmware support (no control over state storage in NVRAM, for example), and might need further fixing. Testers welcome. This change fixes a regression from 2.6.30. Reported-by: Jerone Young Reported-by: Ian Molton Signed-off-by: Henrique de Moraes Holschuh Tested-by: Ian Molton Cc: stable@kernel.org Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 32 +++++--------------------------- 1 file changed, 5 insertions(+), 27 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 9c6d5a929e96..1ee734c14cc1 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -3866,15 +3866,6 @@ enum { #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" -static void bluetooth_suspend(pm_message_t state) -{ - /* Try to make sure radio will resume powered off */ - if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", - TP_ACPI_BLTH_PWR_OFF_ON_RESUME)) - vdbg_printk(TPACPI_DBG_RFKILL, - "bluetooth power down on resume request failed\n"); -} - static int bluetooth_get_status(void) { int status; @@ -3908,10 +3899,9 @@ static int bluetooth_set_status(enum tpacpi_rfkill_state state) #endif /* We make sure to keep TP_ACPI_BLUETOOTH_RESUMECTRL off */ + status = TP_ACPI_BLUETOOTH_RESUMECTRL; if (state == TPACPI_RFK_RADIO_ON) - status = TP_ACPI_BLUETOOTH_RADIOSSW; - else - status = 0; + status |= TP_ACPI_BLUETOOTH_RADIOSSW; if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) return -EIO; @@ -4050,7 +4040,6 @@ static struct ibm_struct bluetooth_driver_data = { .read = bluetooth_read, .write = bluetooth_write, .exit = bluetooth_exit, - .suspend = bluetooth_suspend, .shutdown = bluetooth_shutdown, }; @@ -4068,15 +4057,6 @@ enum { #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" -static void wan_suspend(pm_message_t state) -{ - /* Try to make sure radio will resume powered off */ - if (!acpi_evalf(NULL, NULL, "\\WGSV", "qvd", - TP_ACPI_WGSV_PWR_OFF_ON_RESUME)) - vdbg_printk(TPACPI_DBG_RFKILL, - "WWAN power down on resume request failed\n"); -} - static int wan_get_status(void) { int status; @@ -4109,11 +4089,10 @@ static int wan_set_status(enum tpacpi_rfkill_state state) } #endif - /* We make sure to keep TP_ACPI_WANCARD_RESUMECTRL off */ + /* We make sure to set TP_ACPI_WANCARD_RESUMECTRL */ + status = TP_ACPI_WANCARD_RESUMECTRL; if (state == TPACPI_RFK_RADIO_ON) - status = TP_ACPI_WANCARD_RADIOSSW; - else - status = 0; + status |= TP_ACPI_WANCARD_RADIOSSW; if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) return -EIO; @@ -4251,7 +4230,6 @@ static struct ibm_struct wan_driver_data = { .read = wan_read, .write = wan_write, .exit = wan_exit, - .suspend = wan_suspend, .shutdown = wan_shutdown, }; -- cgit v1.2.3 From 90765c6aee568137521ba19347c744b5abde8161 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Wed, 9 Dec 2009 01:36:23 +0000 Subject: thinkpad-acpi: fix some version quirks Update some of the BIOS/EC version quirks. Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 1ee734c14cc1..6160813d906a 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -1779,7 +1779,7 @@ static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ - TPV_QL0('7', 'E', 'D', '0'), /* R60e, R60i */ + TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ /* BIOS FW BIOS VERS EC FW EC VERS */ TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ @@ -1795,8 +1795,8 @@ static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ - TPV_QL0('7', 'B', 'D', '7'), /* X60/s */ - TPV_QL0('7', 'J', '3', '0'), /* X60t */ + TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ + TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ /* (0) - older versions lack DMI EC fw string and functionality */ /* (1) - older versions known to lack functionality */ -- cgit v1.2.3 From 347a26860e2293b1347996876d3550499c7bb31f Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Wed, 9 Dec 2009 01:36:24 +0000 Subject: thinkpad-acpi: issue backlight class events Take advantage of the new events capabilities of the backlight class to notify userspace of backlight changes. This depends on "backlight: Allow drivers to update the core, and generate events on changes", by Matthew Garrett. Signed-off-by: Henrique de Moraes Holschuh Cc: Matthew Garrett Cc: Richard Purdie Signed-off-by: Len Brown --- Documentation/laptops/thinkpad-acpi.txt | 51 ++++++++------------------------- drivers/platform/x86/thinkpad_acpi.c | 24 +++++++++++++++- 2 files changed, 35 insertions(+), 40 deletions(-) (limited to 'drivers/platform') diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt index aafcaa634191..f5056c7fb5be 100644 --- a/Documentation/laptops/thinkpad-acpi.txt +++ b/Documentation/laptops/thinkpad-acpi.txt @@ -460,6 +460,8 @@ event code Key Notes For Lenovo ThinkPads with a new BIOS, it has to be handled either by the ACPI OSI, or by userspace. + The driver does the right thing, + never mess with this. 0x1011 0x10 FN+END Brightness down. See brightness up for details. @@ -582,46 +584,15 @@ with hotkey_report_mode. Brightness hotkey notes: -These are the current sane choices for brightness key mapping in -thinkpad-acpi: +Don't mess with the brightness hotkeys in a Thinkpad. If you want +notifications for OSD, use the sysfs backlight class event support. -For IBM and Lenovo models *without* ACPI backlight control (the ones on -which thinkpad-acpi will autoload its backlight interface by default, -and on which ACPI video does not export a backlight interface): - -1. Don't enable or map the brightness hotkeys in thinkpad-acpi, as - these older firmware versions unfortunately won't respect the hotkey - mask for brightness keys anyway, and always reacts to them. This - usually work fine, unless X.org drivers are doing something to block - the BIOS. In that case, use (3) below. This is the default mode of - operation. - -2. Enable the hotkeys, but map them to something else that is NOT - KEY_BRIGHTNESS_UP/DOWN or any other keycode that would cause - userspace to try to change the backlight level, and use that as an - on-screen-display hint. - -3. IF AND ONLY IF X.org drivers find a way to block the firmware from - automatically changing the brightness, enable the hotkeys and map - them to KEY_BRIGHTNESS_UP and KEY_BRIGHTNESS_DOWN, and feed that to - something that calls xbacklight. thinkpad-acpi will not be able to - change brightness in that case either, so you should disable its - backlight interface. - -For Lenovo models *with* ACPI backlight control: - -1. Load up ACPI video and use that. ACPI video will report ACPI - events for brightness change keys. Do not mess with thinkpad-acpi - defaults in this case. thinkpad-acpi should not have anything to do - with backlight events in a scenario where ACPI video is loaded: - brightness hotkeys must be disabled, and the backlight interface is - to be kept disabled as well. This is the default mode of operation. - -2. Do *NOT* load up ACPI video, enable the hotkeys in thinkpad-acpi, - and map them to KEY_BRIGHTNESS_UP and KEY_BRIGHTNESS_DOWN. Process - these keys on userspace somehow (e.g. by calling xbacklight). - The driver will do this automatically if it detects that ACPI video - has been disabled. +The driver will issue KEY_BRIGHTNESS_UP and KEY_BRIGHTNESS_DOWN events +automatically for the cases were userspace has to do something to +implement brightness changes. When you override these events, you will +either fail to handle properly the ThinkPads that require explicit +action to change backlight brightness, or the ThinkPads that require +that no action be taken to work properly. Bluetooth @@ -1465,3 +1436,5 @@ Sysfs interface changelog: and it is always able to disable hot keys. Very old thinkpads are properly supported. hotkey_bios_mask is deprecated and marked for removal. + +0x020600: Marker for backlight change event support. diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 6160813d906a..44061367a10d 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -22,7 +22,7 @@ */ #define TPACPI_VERSION "0.23" -#define TPACPI_SYSFS_VERSION 0x020500 +#define TPACPI_SYSFS_VERSION 0x020600 /* * Changelog: @@ -6073,6 +6073,12 @@ static int brightness_get(struct backlight_device *bd) return status & TP_EC_BACKLIGHT_LVLMSK; } +static void tpacpi_brightness_notify_change(void) +{ + backlight_force_update(ibm_backlight_device, + BACKLIGHT_UPDATE_HOTKEY); +} + static struct backlight_ops ibm_backlight_data = { .get_brightness = brightness_get, .update_status = brightness_update_status, @@ -6227,6 +6233,12 @@ static int __init brightness_init(struct ibm_init_struct *iibm) ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; backlight_update_status(ibm_backlight_device); + vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, + "brightness: registering brightness hotkeys " + "as change notification\n"); + tpacpi_hotkey_driver_mask_set(hotkey_driver_mask + | TP_ACPI_HKEY_BRGHTUP_MASK + | TP_ACPI_HKEY_BRGHTDWN_MASK);; return 0; } @@ -6303,6 +6315,9 @@ static int brightness_write(char *buf) * Doing it this way makes the syscall restartable in case of EINTR */ rc = brightness_set(level); + if (!rc && ibm_backlight_device) + backlight_force_update(ibm_backlight_device, + BACKLIGHT_UPDATE_SYSFS); return (rc == -EINTR)? -ERESTARTSYS : rc; } @@ -7702,6 +7717,13 @@ static struct ibm_struct fan_driver_data = { */ static void tpacpi_driver_event(const unsigned int hkey_event) { + if (ibm_backlight_device) { + switch (hkey_event) { + case TP_HKEY_EV_BRGHT_UP: + case TP_HKEY_EV_BRGHT_DOWN: + tpacpi_brightness_notify_change(); + } + } } -- cgit v1.2.3 From 6b30eb7d211840ba1a03f855d9e7b80a921368f2 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Wed, 9 Dec 2009 01:36:25 +0000 Subject: thinkpad-acpi: silence bogus complain during rmmod Fix this bogus warning during module shutdown, when backlight event reporting is enabled: "thinkpad_acpi: required events 0x00018000 not enabled!" Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 44061367a10d..86418cd3e59d 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -2189,7 +2189,8 @@ static int hotkey_mask_set(u32 mask) fwmask, hotkey_acpi_mask); } - hotkey_mask_warn_incomplete_mask(); + if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) + hotkey_mask_warn_incomplete_mask(); return rc; } -- cgit v1.2.3 From d112ef95d4ec1ee7fe7123e3f21e4aac0d57570c Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Wed, 9 Dec 2009 01:36:26 +0000 Subject: thinkpad-acpi: adopt input device Properly init the parent field of the input device. Thanks to Alan Jenkins, who noted this problem in a different driver. Reported-by: Alan Jenkins Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 86418cd3e59d..dd8bd072c79a 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -8375,6 +8375,7 @@ static int __init thinkpad_acpi_module_init(void) PCI_VENDOR_ID_IBM; tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; + tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; } for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { ret = ibm_init(&ibms_init[i]); -- cgit v1.2.3 From b09c72259e88cec3d602aef987a3209297f3a9c2 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Wed, 9 Dec 2009 01:36:27 +0000 Subject: thinkpad-acpi: expose module parameters Export the normal (non-command) module paramenters as mode 0444, so that they will show up in sysfs. These parameters must not be changed at runtime as a rule, with very few exceptions. Reported-by: Ferenc Wagner Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index dd8bd072c79a..4b96a961b7e0 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -8116,32 +8116,32 @@ static int __init set_ibm_param(const char *val, struct kernel_param *kp) return -EINVAL; } -module_param(experimental, int, 0); +module_param(experimental, int, 0444); MODULE_PARM_DESC(experimental, "Enables experimental features when non-zero"); module_param_named(debug, dbg_level, uint, 0); MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); -module_param(force_load, bool, 0); +module_param(force_load, bool, 0444); MODULE_PARM_DESC(force_load, "Attempts to load the driver even on a " "mis-identified ThinkPad when true"); -module_param_named(fan_control, fan_control_allowed, bool, 0); +module_param_named(fan_control, fan_control_allowed, bool, 0444); MODULE_PARM_DESC(fan_control, "Enables setting fan parameters features when true"); -module_param_named(brightness_mode, brightness_mode, uint, 0); +module_param_named(brightness_mode, brightness_mode, uint, 0444); MODULE_PARM_DESC(brightness_mode, "Selects brightness control strategy: " "0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); -module_param(brightness_enable, uint, 0); +module_param(brightness_enable, uint, 0444); MODULE_PARM_DESC(brightness_enable, "Enables backlight control when 1, disables when 0"); -module_param(hotkey_report_mode, uint, 0); +module_param(hotkey_report_mode, uint, 0444); MODULE_PARM_DESC(hotkey_report_mode, "used for backwards compatibility with userspace, " "see documentation"); @@ -8164,25 +8164,25 @@ TPACPI_PARAM(volume); TPACPI_PARAM(fan); #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES -module_param(dbg_wlswemul, uint, 0); +module_param(dbg_wlswemul, uint, 0444); MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); MODULE_PARM_DESC(wlsw_state, "Initial state of the emulated WLSW switch"); -module_param(dbg_bluetoothemul, uint, 0); +module_param(dbg_bluetoothemul, uint, 0444); MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); MODULE_PARM_DESC(bluetooth_state, "Initial state of the emulated bluetooth switch"); -module_param(dbg_wwanemul, uint, 0); +module_param(dbg_wwanemul, uint, 0444); MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); MODULE_PARM_DESC(wwan_state, "Initial state of the emulated WWAN switch"); -module_param(dbg_uwbemul, uint, 0); +module_param(dbg_uwbemul, uint, 0444); MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); MODULE_PARM_DESC(uwb_state, -- cgit v1.2.3 From 9ebd9e833648745fa5ac6998b9e0153ccd3ba839 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Wed, 9 Dec 2009 01:36:28 +0000 Subject: thinkpad-acpi: log temperatures on termal alarm (v2) Log temperatures on any of the EC thermal alarms. It could be useful to help tracking down what is happening... Signed-off-by: Henrique de Moraes Holschuh Acked-by: Pavel Machek Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 57 ++++++++++++++++++++++++++++-------- 1 file changed, 45 insertions(+), 12 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 4b96a961b7e0..b3e256b2cf16 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -3546,49 +3546,57 @@ static bool hotkey_notify_usrevent(const u32 hkey, } } +static void thermal_dump_all_sensors(void); + static bool hotkey_notify_thermal(const u32 hkey, bool *send_acpi_ev, bool *ignore_acpi_ev) { + bool known = true; + /* 0x6000-0x6FFF: thermal alarms */ *send_acpi_ev = true; *ignore_acpi_ev = false; switch (hkey) { + case TP_HKEY_EV_THM_TABLE_CHANGED: + printk(TPACPI_INFO + "EC reports that Thermal Table has changed\n"); + /* recommended action: do nothing, we don't have + * Lenovo ATM information */ + return true; case TP_HKEY_EV_ALARM_BAT_HOT: printk(TPACPI_CRIT "THERMAL ALARM: battery is too hot!\n"); /* recommended action: warn user through gui */ - return true; + break; case TP_HKEY_EV_ALARM_BAT_XHOT: printk(TPACPI_ALERT "THERMAL EMERGENCY: battery is extremely hot!\n"); /* recommended action: immediate sleep/hibernate */ - return true; + break; case TP_HKEY_EV_ALARM_SENSOR_HOT: printk(TPACPI_CRIT "THERMAL ALARM: " "a sensor reports something is too hot!\n"); /* recommended action: warn user through gui, that */ /* some internal component is too hot */ - return true; + break; case TP_HKEY_EV_ALARM_SENSOR_XHOT: printk(TPACPI_ALERT "THERMAL EMERGENCY: " "a sensor reports something is extremely hot!\n"); /* recommended action: immediate sleep/hibernate */ - return true; - case TP_HKEY_EV_THM_TABLE_CHANGED: - printk(TPACPI_INFO - "EC reports that Thermal Table has changed\n"); - /* recommended action: do nothing, we don't have - * Lenovo ATM information */ - return true; + break; default: printk(TPACPI_ALERT "THERMAL ALERT: unknown thermal alarm received\n"); - return false; + known = false; } + + thermal_dump_all_sensors(); + + return known; } static void hotkey_notify(struct ibm_struct *ibm, u32 event) @@ -5462,8 +5470,11 @@ enum { /* TPACPI_THERMAL_TPEC_* */ TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ + + TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ }; + #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ struct ibm_thermal_sensors_struct { s32 temp[TPACPI_MAX_THERMAL_SENSORS]; @@ -5553,6 +5564,28 @@ static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) return n; } +static void thermal_dump_all_sensors(void) +{ + int n, i; + struct ibm_thermal_sensors_struct t; + + n = thermal_get_sensors(&t); + if (n <= 0) + return; + + printk(TPACPI_NOTICE + "temperatures (Celsius):"); + + for (i = 0; i < n; i++) { + if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) + printk(KERN_CONT " %d", (int)(t.temp[i] / 1000)); + else + printk(KERN_CONT " N/A"); + } + + printk(KERN_CONT "\n"); +} + /* sysfs temp##_input -------------------------------------------------- */ static ssize_t thermal_temp_input_show(struct device *dev, @@ -5568,7 +5601,7 @@ static ssize_t thermal_temp_input_show(struct device *dev, res = thermal_get_sensor(idx, &value); if (res) return res; - if (value == TP_EC_THERMAL_TMP_NA * 1000) + if (value == TPACPI_THERMAL_SENSOR_NA) return -ENXIO; return snprintf(buf, PAGE_SIZE, "%d\n", value); -- cgit v1.2.3 From 792979c8032b8f5adb77ea986db7082fff04c8e7 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Wed, 9 Dec 2009 01:36:29 +0000 Subject: thinkpad-acpi: use input_set_capability Use input_set_capability() instead of set_bit. Signed-off-by: Henrique de Moraes Holschuh Cc: Dmitry Torokhov Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index b3e256b2cf16..53d6c3318069 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -3348,16 +3348,14 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) TPACPI_HOTKEY_MAP_SIZE); } - set_bit(EV_KEY, tpacpi_inputdev->evbit); - set_bit(EV_MSC, tpacpi_inputdev->evbit); - set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); + input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; tpacpi_inputdev->keycode = hotkey_keycode_map; for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { if (hotkey_keycode_map[i] != KEY_RESERVED) { - set_bit(hotkey_keycode_map[i], - tpacpi_inputdev->keybit); + input_set_capability(tpacpi_inputdev, EV_KEY, + hotkey_keycode_map[i]); } else { if (i < sizeof(hotkey_reserved_mask)*8) hotkey_reserved_mask |= 1 << i; @@ -3365,12 +3363,10 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) } if (tp_features.hotkey_wlsw) { - set_bit(EV_SW, tpacpi_inputdev->evbit); - set_bit(SW_RFKILL_ALL, tpacpi_inputdev->swbit); + input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); } if (tp_features.hotkey_tablet) { - set_bit(EV_SW, tpacpi_inputdev->evbit); - set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit); + input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); } /* Do not issue duplicate brightness change events to -- cgit v1.2.3 From 6dff29b63a5bf2eaf3313cb8a84f0b7520c43401 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:45 +0000 Subject: eeepc-laptop: disp attribute should be write-only Currently, reading from the disp attribute fails with "No such device", which is misleading. According to CMSG table on acpi4asus project site, no models have a getter method corresponding to SDSP. Change the file permission to disallow reads. If some joker changes the permission to permit reads, then return -EIO to be consistent with sysfs' behaviour when no show() method is provided. Signed-off-by: Alan Jenkins Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 4226e5352738..2c65a3772968 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -380,7 +380,7 @@ static ssize_t store_sys_acpi(int cm, const char *buf, size_t count) if (rv > 0) value = set_acpi(cm, value); if (value < 0) - return value; + return -EIO; return rv; } @@ -389,11 +389,11 @@ static ssize_t show_sys_acpi(int cm, char *buf) int value = get_acpi(cm); if (value < 0) - return value; + return -EIO; return sprintf(buf, "%d\n", value); } -#define EEEPC_CREATE_DEVICE_ATTR(_name, _cm) \ +#define EEEPC_CREATE_DEVICE_ATTR(_name, _mode, _cm) \ static ssize_t show_##_name(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ @@ -409,14 +409,14 @@ static ssize_t show_sys_acpi(int cm, char *buf) static struct device_attribute dev_attr_##_name = { \ .attr = { \ .name = __stringify(_name), \ - .mode = 0644 }, \ + .mode = _mode }, \ .show = show_##_name, \ .store = store_##_name, \ } -EEEPC_CREATE_DEVICE_ATTR(camera, CM_ASL_CAMERA); -EEEPC_CREATE_DEVICE_ATTR(cardr, CM_ASL_CARDREADER); -EEEPC_CREATE_DEVICE_ATTR(disp, CM_ASL_DISPLAYSWITCH); +EEEPC_CREATE_DEVICE_ATTR(camera, 0644, CM_ASL_CAMERA); +EEEPC_CREATE_DEVICE_ATTR(cardr, 0644, CM_ASL_CARDREADER); +EEEPC_CREATE_DEVICE_ATTR(disp, 0200, CM_ASL_DISPLAYSWITCH); struct eeepc_cpufv { int num; -- cgit v1.2.3 From 1df8d8d4efb7bce0e44d2aa91c4c0fa7ffe613c0 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:46 +0000 Subject: asus-laptop: Remove redundant NULL checks The acpi device callbacks add, start, remove, suspend and resume can never be called with a NULL acpi_device. Each callsite in acpi/scan.c has to dereference the device in order to get the ops structure, e.g. struct acpi_device *acpi_dev = to_acpi_device(dev); struct acpi_driver *acpi_drv = acpi_dev->driver; if (acpi_drv && acpi_drv->ops.suspend) return acpi_drv->ops.suspend(acpi_dev, state); Remove all checks for acpi_dev == NULL within these callbacks. Also remove the checks for acpi_driver_data(acpi_dev) == NULL. None of these checks could fail unless the driver does something strange (which none of them do), the acpi core did something terribly wrong, or we have a memory corruption issue. If this does happen then it's best to dereference the pointer and crash noisily. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/asus-laptop.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index b39d2bb3e75b..8af43e9b6183 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -1240,9 +1240,6 @@ static int asus_hotk_add(struct acpi_device *device) { int result; - if (!device) - return -EINVAL; - pr_notice("Asus Laptop Support version %s\n", ASUS_LAPTOP_VERSION); @@ -1306,9 +1303,6 @@ end: static int asus_hotk_remove(struct acpi_device *device, int type) { - if (!device || !acpi_driver_data(device)) - return -EINVAL; - kfree(hotk->name); kfree(hotk); -- cgit v1.2.3 From 2d5db0be4ce36b265f9ddd8debab40acd8580403 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:47 +0000 Subject: asus-acpi: Remove redundant NULL checks The acpi device callbacks add, start, remove, suspend and resume can never be called with a NULL acpi_device. Each callsite in acpi/scan.c has to dereference the device in order to get the ops structure, e.g. struct acpi_device *acpi_dev = to_acpi_device(dev); struct acpi_driver *acpi_drv = acpi_dev->driver; if (acpi_drv && acpi_drv->ops.suspend) return acpi_drv->ops.suspend(acpi_dev, state); Remove all checks for acpi_dev == NULL within these callbacks. Also remove the checks for acpi_driver_data(acpi_dev) == NULL. None of these checks could fail unless the driver does something strange (which none of them do), the acpi core did something terribly wrong, or we have a memory corruption issue. If this does happen then it's best to dereference the pointer and crash noisily. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/asus_acpi.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/asus_acpi.c b/drivers/platform/x86/asus_acpi.c index ddf5240ade8c..25a7d57fe449 100644 --- a/drivers/platform/x86/asus_acpi.c +++ b/drivers/platform/x86/asus_acpi.c @@ -1334,9 +1334,6 @@ static int asus_hotk_add(struct acpi_device *device) acpi_status status = AE_OK; int result; - if (!device) - return -EINVAL; - printk(KERN_NOTICE "Asus Laptop ACPI Extras version %s\n", ASUS_ACPI_VERSION); @@ -1392,9 +1389,6 @@ end: static int asus_hotk_remove(struct acpi_device *device, int type) { - if (!device || !acpi_driver_data(device)) - return -EINVAL; - asus_hotk_remove_fs(device); kfree(hotk); -- cgit v1.2.3 From b7fab7a0703a9d3a3b4b59aa2f7b098b2b83b8fe Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:48 +0000 Subject: asus-laptop: Remove uneccesary acpi_disabled check acpi_bus_register_driver() already checks acpi_disabled, so acpi bus drivers don't need to. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/asus-laptop.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 8af43e9b6183..4234edbe6ffc 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -1438,9 +1438,6 @@ static int __init asus_laptop_init(void) { int result; - if (acpi_disabled) - return -ENODEV; - result = acpi_bus_register_driver(&asus_hotk_driver); if (result < 0) return result; -- cgit v1.2.3 From 5a4a9f6fd3dedefe06aed0e35c76bb6e0177adb6 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:49 +0000 Subject: asus-acpi: Remove uneccesary acpi_disabled checks acpi_bus_register_driver() already checks acpi_disabled, so acpi bus drivers don't need to. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/asus_acpi.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/asus_acpi.c b/drivers/platform/x86/asus_acpi.c index 25a7d57fe449..783243f7e7a4 100644 --- a/drivers/platform/x86/asus_acpi.c +++ b/drivers/platform/x86/asus_acpi.c @@ -1416,21 +1416,17 @@ static int __init asus_acpi_init(void) { int result; - if (acpi_disabled) - return -ENODEV; + result = acpi_bus_register_driver(&asus_hotk_driver); + if (result < 0) + return result; asus_proc_dir = proc_mkdir(PROC_ASUS, acpi_root_dir); if (!asus_proc_dir) { printk(KERN_ERR "Asus ACPI: Unable to create /proc entry\n"); + acpi_bus_unregister_driver(&asus_hotk_driver); return -ENODEV; } - result = acpi_bus_register_driver(&asus_hotk_driver); - if (result < 0) { - remove_proc_entry(PROC_ASUS, acpi_root_dir); - return result; - } - /* * This is a bit of a kludge. We only want this module loaded * for ASUS systems, but there's currently no way to probe the -- cgit v1.2.3 From db7c554afeee7e535a5476dedb1339cb30d0b5df Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:50 +0000 Subject: asus-acpi: set acpi_driver.owner The owner field provides the link between drivers and modules in sysfs, but no ACPI driver was setting it. After setting the owner field, we can see which module provides which driver and vice versa by looking at /sys/bus/acpi/driver/*/module and /sys/module/*/drivers/acpi:*. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/asus_acpi.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/asus_acpi.c b/drivers/platform/x86/asus_acpi.c index 783243f7e7a4..0c9c53111a22 100644 --- a/drivers/platform/x86/asus_acpi.c +++ b/drivers/platform/x86/asus_acpi.c @@ -466,6 +466,7 @@ MODULE_DEVICE_TABLE(acpi, asus_device_ids); static struct acpi_driver asus_hotk_driver = { .name = "asus_acpi", .class = ACPI_HOTK_CLASS, + .owner = THIS_MODULE, .ids = asus_device_ids, .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, .ops = { -- cgit v1.2.3 From edf624522757adec8ceb83a4b97747eba645c454 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:51 +0000 Subject: asus-laptop: set acpi_driver.owner The owner field provides the link between drivers and modules in sysfs, but no ACPI driver was setting it. After setting the owner field, we can see which module provides which driver and vice versa by looking at /sys/bus/acpi/driver/*/module and /sys/module/*/drivers/acpi:*. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/asus-laptop.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 4234edbe6ffc..6c05172bf3d3 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -232,6 +232,7 @@ static void asus_hotk_notify(struct acpi_device *device, u32 event); static struct acpi_driver asus_hotk_driver = { .name = ASUS_HOTK_NAME, .class = ASUS_HOTK_CLASS, + .owner = THIS_MODULE, .ids = asus_device_ids, .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, .ops = { -- cgit v1.2.3 From 3c0eb510697dbbb53674c72544350624a04ab5b4 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Thu, 3 Dec 2009 07:44:52 +0000 Subject: eeepc-laptop: add touchpad led This led can be found on Eeepc 1005 series. Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/Kconfig | 2 ++ drivers/platform/x86/eeepc-laptop.c | 67 +++++++++++++++++++++++++++++++++++++ 2 files changed, 69 insertions(+) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 55ca39dea42e..e5e43121995d 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -334,6 +334,8 @@ config EEEPC_LAPTOP depends on HOTPLUG_PCI select BACKLIGHT_CLASS_DEVICE select HWMON + select LEDS_CLASS + select NEW_LEDS ---help--- This driver supports the Fn-Fx keys on Eee PC laptops. diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 2c65a3772968..91304342f8b6 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -34,6 +34,7 @@ #include #include #include +#include #define EEEPC_LAPTOP_VERSION "0.1" @@ -506,6 +507,39 @@ static struct attribute_group platform_attribute_group = { .attrs = platform_attributes }; +/* + * LEDs + */ +/* + * These functions actually update the LED's, and are called from a + * workqueue. By doing this as separate work rather than when the LED + * subsystem asks, we avoid messing with the Asus ACPI stuff during a + * potentially bad time, such as a timer interrupt. + */ +static int tpd_led_wk; + +static void tpd_led_update(struct work_struct *ignored) +{ + int value = tpd_led_wk; + set_acpi(CM_ASL_TPD, value); +} + +static struct workqueue_struct *led_workqueue; +static DECLARE_WORK(tpd_led_work, tpd_led_update); + +static void tpd_led_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + tpd_led_wk = (value > 0) ? 1 : 0; + queue_work(led_workqueue, &tpd_led_work); +} + +static struct led_classdev tpd_led = { + .name = "eeepc::touchpad", + .brightness_set = tpd_led_set, + .max_brightness = 1 +}; + /* * Hotkey functions */ @@ -1034,6 +1068,14 @@ static void eeepc_hwmon_exit(void) eeepc_hwmon_device = NULL; } +static void eeepc_led_exit(void) +{ + if (led_workqueue) + destroy_workqueue(led_workqueue); + if (tpd_led.dev) + led_classdev_unregister(&tpd_led); +} + static int eeepc_new_rfkill(struct rfkill **rfkill, const char *name, struct device *dev, enum rfkill_type type, int cm) @@ -1190,6 +1232,24 @@ static int eeepc_input_init(struct device *dev) return 0; } +static int eeepc_led_init(struct device *dev) +{ + int rv; + + if (get_acpi(CM_ASL_TPD) == -ENODEV) + return 0; + + rv = led_classdev_register(dev, &tpd_led); + if (rv) + return rv; + + led_workqueue = create_singlethread_workqueue("led_workqueue"); + if (!led_workqueue) + return -ENOMEM; + + return 0; +} + static int __devinit eeepc_hotk_add(struct acpi_device *device) { struct device *dev; @@ -1248,6 +1308,10 @@ static int __devinit eeepc_hotk_add(struct acpi_device *device) if (result) goto fail_hwmon; + result = eeepc_led_init(dev); + if (result) + goto fail_led; + result = eeepc_rfkill_init(dev); if (result) goto fail_rfkill; @@ -1255,6 +1319,8 @@ static int __devinit eeepc_hotk_add(struct acpi_device *device) return 0; fail_rfkill: + eeepc_led_exit(); +fail_led: eeepc_hwmon_exit(); fail_hwmon: eeepc_input_exit(); @@ -1284,6 +1350,7 @@ static int eeepc_hotk_remove(struct acpi_device *device, int type) eeepc_rfkill_exit(); eeepc_input_exit(); eeepc_hwmon_exit(); + eeepc_led_exit(); sysfs_remove_group(&platform_device->dev.kobj, &platform_attribute_group); platform_device_unregister(platform_device); -- cgit v1.2.3 From fbe3d8942e8fd1e947e4d11a3e9e15675a1cac7e Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:53 +0000 Subject: eeepc-laptop: Remove redundant NULL checks The acpi device callbacks add, start, remove, suspend and resume can never be called with a NULL acpi_device. Each callsite in acpi/scan.c has to dereference the device in order to get the ops structure, e.g. struct acpi_device *acpi_dev = to_acpi_device(dev); struct acpi_driver *acpi_drv = acpi_dev->driver; if (acpi_drv && acpi_drv->ops.suspend) return acpi_drv->ops.suspend(acpi_dev, state); Remove all checks for acpi_dev == NULL within these callbacks. Also remove the checks for acpi_driver_data(acpi_dev) == NULL. None of these checks could fail unless the driver does something strange (which none of them do), the acpi core did something terribly wrong, or we have a memory corruption issue. If this does happen then it's best to dereference the pointer and crash noisily. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 91304342f8b6..7dde47a67997 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -1255,8 +1255,6 @@ static int __devinit eeepc_hotk_add(struct acpi_device *device) struct device *dev; int result; - if (!device) - return -EINVAL; pr_notice(EEEPC_HOTK_NAME "\n"); ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL); if (!ehotk) @@ -1343,9 +1341,6 @@ fail_platform_driver: static int eeepc_hotk_remove(struct acpi_device *device, int type) { - if (!device || !acpi_driver_data(device)) - return -EINVAL; - eeepc_backlight_exit(); eeepc_rfkill_exit(); eeepc_input_exit(); -- cgit v1.2.3 From 2adb8bd380314feb8170d58b3852cad2c374d20f Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:54 +0000 Subject: eeepc-laptop: Remove uneccesary acpi_disabled check acpi_bus_register_driver() already checks acpi_disabled, so acpi bus drivers don't need to. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 7dde47a67997..f5efe8da5e7a 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -1359,8 +1359,6 @@ static int __init eeepc_laptop_init(void) { int result; - if (acpi_disabled) - return -ENODEV; result = acpi_bus_register_driver(&eeepc_hotk_driver); if (result < 0) return result; -- cgit v1.2.3 From eacec3031d1f444a618cf2d023d52f088cf82a7e Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:55 +0000 Subject: eeepc-laptop: set acpi_driver.owner The owner field provides the link between drivers and modules in sysfs, but no ACPI driver was setting it. After setting the owner field, we can see which module provides which driver and vice versa by looking at /sys/bus/acpi/driver/*/module and /sys/module/*/drivers/acpi:*. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index f5efe8da5e7a..1c04c877b824 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -214,6 +214,7 @@ MODULE_DEVICE_TABLE(acpi, eeepc_device_ids); static struct acpi_driver eeepc_hotk_driver = { .name = EEEPC_HOTK_NAME, .class = EEEPC_HOTK_CLASS, + .owner = THIS_MODULE, .ids = eeepc_device_ids, .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, .ops = { -- cgit v1.2.3 From 487186880d31821eaaba0cc1f27d5a581c56981d Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:56 +0000 Subject: eeepc-laptop: fix value of pwm1_enable to match documentation Documentation/hwmon/sysfs-interface tells us that automatic fan speed control should be represented by a value of 2 or above for pwm1_enable. Fix eeepc_get_fan_ctrl() to return 2 for automatic fan control. Setting "1" for manual control is already consistent with the documentation, so this remains unchanged. Let's preserve the ABI for this specific driver, so that writing "0" will still invoke automatic control. (The documentation says setting "0" should leave the fan at full speed all the time. This mode is not directly supported by our hardware. Full speed is rather noisy on my 701 and the automatic control has never used it. If you really want this e.g. to prolong the life of an EeePC used as a server, you can always use manual mode. hwmon has always been fairly machine-specific, and you're in a tiny minority (or elite :-). I'm sure you're smart enough to notice that the fan doesn't turn on to full speed when you try this mode, either by ear or checking fan_input1. We could even claim to be honouring the spirit of the documentation. "0" really means "safe mode". EeePCs default to automatic mode, ie that is what Asus will actually test. Since we do not provide any way to tamper with the temperature threshold, automatic mode _is_ the safe option). Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 1c04c877b824..6c982d6c3a54 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -935,7 +935,10 @@ static int eeepc_get_fan_ctrl(void) int value = 0; read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value); - return ((value & 0x02 ? 1 : 0)); + if (value & 0x02) + return 1; /* manual */ + else + return 2; /* automatic */ } static void eeepc_set_fan_ctrl(int manual) @@ -943,7 +946,7 @@ static void eeepc_set_fan_ctrl(int manual) int value = 0; read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value); - if (manual) + if (manual == 1) value |= 0x02; else value &= ~0x02; -- cgit v1.2.3 From 2b56f1c170fc6338a7d907d6a7132669f9ccdf62 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:57 +0000 Subject: eeepc-laptop: fix led initialization order Create the workqueue thread used by tpd_led_set() *before* we register the led device. (And vice versa for unregistration). Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 6c982d6c3a54..ac45fafbb796 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -1074,10 +1074,10 @@ static void eeepc_hwmon_exit(void) static void eeepc_led_exit(void) { - if (led_workqueue) - destroy_workqueue(led_workqueue); if (tpd_led.dev) led_classdev_unregister(&tpd_led); + if (led_workqueue) + destroy_workqueue(led_workqueue); } static int eeepc_new_rfkill(struct rfkill **rfkill, @@ -1243,14 +1243,14 @@ static int eeepc_led_init(struct device *dev) if (get_acpi(CM_ASL_TPD) == -ENODEV) return 0; - rv = led_classdev_register(dev, &tpd_led); - if (rv) - return rv; - led_workqueue = create_singlethread_workqueue("led_workqueue"); if (!led_workqueue) return -ENOMEM; + rv = led_classdev_register(dev, &tpd_led); + if (rv) + return rv; + return 0; } -- cgit v1.2.3 From dc56ad9b49d20e38bb9745bf3beca84291b21a51 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:58 +0000 Subject: eeepc-laptop: fix potential leak (led_init() failure) If we bail out because we can't create the led class device, we need to ensure the led workqueue is cleaned up. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index ac45fafbb796..8b686b563ec0 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -1248,8 +1248,10 @@ static int eeepc_led_init(struct device *dev) return -ENOMEM; rv = led_classdev_register(dev, &tpd_led); - if (rv) + if (rv) { + destroy_workqueue(led_workqueue); return rv; + } return 0; } -- cgit v1.2.3 From 13f70029daa3cd7f9983e4aec82f32939b1a6e6a Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:44:59 +0000 Subject: eeepc-laptop: fix set_acpi() to return non-zero on failure If the control method does not exist, return -ENODEV for consistency with get_acpi() Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 34 +++++++++++++++++++--------------- 1 file changed, 19 insertions(+), 15 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 8b686b563ec0..abd7389a4493 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -289,26 +289,30 @@ static int read_acpi_int(acpi_handle handle, const char *method, int *val) static int set_acpi(int cm, int value) { - if (ehotk->cm_supported & (0x1 << cm)) { - const char *method = cm_setv[cm]; - if (method == NULL) - return -ENODEV; - if (write_acpi_int(ehotk->handle, method, value, NULL)) - pr_warning("Error writing %s\n", method); - } + const char *method = cm_setv[cm]; + + if (method == NULL) + return -ENODEV; + if ((ehotk->cm_supported & (0x1 << cm)) == 0) + return -ENODEV; + + if (write_acpi_int(ehotk->handle, method, value, NULL)) + pr_warning("Error writing %s\n", method); return 0; } static int get_acpi(int cm) { - int value = -ENODEV; - if ((ehotk->cm_supported & (0x1 << cm))) { - const char *method = cm_getv[cm]; - if (method == NULL) - return -ENODEV; - if (read_acpi_int(ehotk->handle, method, &value)) - pr_warning("Error reading %s\n", method); - } + const char *method = cm_getv[cm]; + int value; + + if (method == NULL) + return -ENODEV; + if ((ehotk->cm_supported & (0x1 << cm)) == 0) + return -ENODEV; + + if (read_acpi_int(ehotk->handle, method, &value)) + pr_warning("Error reading %s\n", method); return value; } -- cgit v1.2.3 From a2a1d36c78e90977e4ded9a20a7d8d27d84b13e4 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:45:00 +0000 Subject: eeepc-laptop: remove redundant NULL checks eeepc_hotk_notify() cannot be called with ehotk == NULL or bd == NULL. We check both variables for allocation failure and would bail out before the notifier is registered. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 42 +++++++++++++++++-------------------- 1 file changed, 19 insertions(+), 23 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index abd7389a4493..f6b7796b24ca 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -662,12 +662,11 @@ static int notify_brn(void) { /* returns the *previous* brightness, or -1 */ struct backlight_device *bd = eeepc_backlight_device; - if (bd) { - int old = bd->props.brightness; - backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); - return old; - } - return -1; + int old = bd->props.brightness; + + backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); + + return old; } static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot, @@ -741,8 +740,6 @@ static void eeepc_hotk_notify(struct acpi_device *device, u32 event) u16 count; int brn = -ENODEV; - if (!ehotk) - return; if (event > ACPI_MAX_SYS_NOTIFY) return; if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) @@ -753,21 +750,20 @@ static void eeepc_hotk_notify(struct acpi_device *device, u32 event) dev_name(&ehotk->device->dev), event, count); if (ehotk->inputdev) { - if (brn != -ENODEV) { - /* brightness-change events need special - * handling for conversion to key events - */ - if (brn < 0) - brn = event; - else - brn += NOTIFY_BRN_MIN; - if (event < brn) - event = NOTIFY_BRN_MIN; /* brightness down */ - else if (event > brn) - event = NOTIFY_BRN_MIN + 2; /* ... up */ - else - event = NOTIFY_BRN_MIN + 1; /* ... unchanged */ - } + /* brightness-change events need special + * handling for conversion to key events + */ + if (brn < 0) + brn = event; + else + brn += NOTIFY_BRN_MIN; + if (event < brn) + event = NOTIFY_BRN_MIN; /* brightness down */ + else if (event > brn) + event = NOTIFY_BRN_MIN + 2; /* ... up */ + else + event = NOTIFY_BRN_MIN + 1; /* ... unchanged */ + key = eepc_get_entry_by_scancode(event); if (key) { switch (key->type) { -- cgit v1.2.3 From 951037ea1cf4dc323906fd45d55ff015fd295d0c Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:45:01 +0000 Subject: eeepc-laptop: no need to check argument of set_brightness() We already tell the backlight class our maximum brightness value; it will validate the user requested values for us. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index f6b7796b24ca..9f33e5178d6c 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -326,7 +326,6 @@ static int read_brightness(struct backlight_device *bd) static int set_brightness(struct backlight_device *bd, int value) { - value = max(0, min(15, value)); return set_acpi(CM_ASL_PANELBRIGHT, value); } -- cgit v1.2.3 From 6b188a7b218cb33d918e72f24995341f949297d2 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:45:02 +0000 Subject: eeepc-laptop: simplify acpi initialization We don't need to store init_flags after using them. And we don't use the result of INIT, so we don't need to allocate a buffer for it. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 55 ++++++++++++++++++------------------- 1 file changed, 26 insertions(+), 29 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 9f33e5178d6c..50ceaaf411c2 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -136,7 +136,6 @@ struct eeepc_hotk { acpi_handle handle; /* the handle of the hotk device */ u32 cm_supported; /* the control methods supported by this BIOS */ - uint init_flag; /* Init flags */ u16 event_count[128]; /* count for each event */ struct input_dev *inputdev; u16 *keycode_map; @@ -256,8 +255,7 @@ MODULE_LICENSE("GPL"); /* * ACPI Helpers */ -static int write_acpi_int(acpi_handle handle, const char *method, int val, - struct acpi_buffer *output) +static int write_acpi_int(acpi_handle handle, const char *method, int val) { struct acpi_object_list params; union acpi_object in_obj; @@ -268,7 +266,7 @@ static int write_acpi_int(acpi_handle handle, const char *method, int val, in_obj.type = ACPI_TYPE_INTEGER; in_obj.integer.value = val; - status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); + status = acpi_evaluate_object(handle, (char *)method, ¶ms, NULL); return (status == AE_OK ? 0 : -1); } @@ -296,7 +294,7 @@ static int set_acpi(int cm, int value) if ((ehotk->cm_supported & (0x1 << cm)) == 0) return -ENODEV; - if (write_acpi_int(ehotk->handle, method, value, NULL)) + if (write_acpi_int(ehotk->handle, method, value)) pr_warning("Error writing %s\n", method); return 0; } @@ -624,36 +622,36 @@ static void cmsg_quirks(void) cmsg_quirk(CM_ASL_TPD, "TPD"); } -static int eeepc_hotk_check(void) +static int eeepc_hotk_init(void) { - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + unsigned int init_flags; int result; result = acpi_bus_get_status(ehotk->device); if (result) return result; - if (ehotk->device->status.present) { - if (write_acpi_int(ehotk->handle, "INIT", ehotk->init_flag, - &buffer)) { - pr_err("Hotkey initialization failed\n"); - return -ENODEV; - } else { - pr_notice("Hotkey init flags 0x%x\n", ehotk->init_flag); - } - /* get control methods supported */ - if (read_acpi_int(ehotk->handle, "CMSG" - , &ehotk->cm_supported)) { - pr_err("Get control methods supported failed\n"); - return -ENODEV; - } else { - cmsg_quirks(); - pr_info("Get control methods supported: 0x%x\n", - ehotk->cm_supported); - } - } else { + if (!ehotk->device->status.present) { pr_err("Hotkey device not present, aborting\n"); - return -EINVAL; + return -ENODEV; } + + init_flags = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; + pr_notice("Hotkey init flags 0x%x\n", init_flags); + + if (write_acpi_int(ehotk->handle, "INIT", init_flags)) { + pr_err("Hotkey initialization failed\n"); + return -ENODEV; + } + + /* get control methods supported */ + if (read_acpi_int(ehotk->handle, "CMSG", + &ehotk->cm_supported)) { + pr_err("Get control methods supported failed\n"); + return -ENODEV; + } + cmsg_quirks(); + pr_info("Get control methods supported: 0x%x\n", ehotk->cm_supported); + return 0; } @@ -1264,14 +1262,13 @@ static int __devinit eeepc_hotk_add(struct acpi_device *device) ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL); if (!ehotk) return -ENOMEM; - ehotk->init_flag = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; ehotk->handle = device->handle; strcpy(acpi_device_name(device), EEEPC_HOTK_DEVICE_NAME); strcpy(acpi_device_class(device), EEEPC_HOTK_CLASS); device->driver_data = ehotk; ehotk->device = device; - result = eeepc_hotk_check(); + result = eeepc_hotk_init(); if (result) goto fail_platform_driver; eeepc_enable_camera(); -- cgit v1.2.3 From 463b4e474ed0905ffc27ee347648739dbfb03acc Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:45:03 +0000 Subject: eeepc-laptop: simplify how the hwmon device reads values from the EC The hwmon device uses ec_write() to write values to the EC. So for consistency it should use ec_read() to read values. The extra layers of indirection used did not add any value. This may mean we no longer take the ACPI global lock for such reads (if the EC operation region requires the lock and the EC does not). But there is no point locking each one-byte read individually, when write operations do not use the lock at all. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 43 ++++++++++++++++++------------------- 1 file changed, 21 insertions(+), 22 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 50ceaaf411c2..04a59d3bcad2 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -118,14 +118,14 @@ static const char *cm_setv[] = { NULL, NULL, "PBPS", "TPDS" }; -#define EEEPC_EC "\\_SB.PCI0.SBRG.EC0." +#define EEEPC_EC_SC00 0x61 +#define EEEPC_EC_FAN_PWM (EEEPC_EC_SC00 + 2) /* Fan PWM duty cycle (%) */ +#define EEEPC_EC_FAN_HRPM (EEEPC_EC_SC00 + 5) /* High byte, fan speed (RPM) */ +#define EEEPC_EC_FAN_LRPM (EEEPC_EC_SC00 + 6) /* Low byte, fan speed (RPM) */ + +#define EEEPC_EC_SFB0 0xD0 +#define EEEPC_EC_FAN_CTRL (EEEPC_EC_SFB0 + 3) /* Byte containing SF25 */ -#define EEEPC_EC_FAN_PWM EEEPC_EC "SC02" /* Fan PWM duty cycle (%) */ -#define EEEPC_EC_SC02 0x63 -#define EEEPC_EC_FAN_HRPM EEEPC_EC "SC05" /* High byte, fan speed (RPM) */ -#define EEEPC_EC_FAN_LRPM EEEPC_EC "SC06" /* Low byte, fan speed (RPM) */ -#define EEEPC_EC_FAN_CTRL EEEPC_EC "SFB3" /* Byte containing SF25 */ -#define EEEPC_EC_SFB3 0xD3 /* * This is the main structure, we can use it to store useful information @@ -903,35 +903,34 @@ static int eeepc_hotk_restore(struct device *device) */ static int eeepc_get_fan_pwm(void) { - int value = 0; + u8 value = 0; - read_acpi_int(NULL, EEEPC_EC_FAN_PWM, &value); - value = value * 255 / 100; - return (value); + ec_read(EEEPC_EC_FAN_PWM, &value); + return value * 255 / 100; } static void eeepc_set_fan_pwm(int value) { value = SENSORS_LIMIT(value, 0, 255); value = value * 100 / 255; - ec_write(EEEPC_EC_SC02, value); + ec_write(EEEPC_EC_FAN_PWM, value); } static int eeepc_get_fan_rpm(void) { - int high = 0; - int low = 0; + u8 high = 0; + u8 low = 0; - read_acpi_int(NULL, EEEPC_EC_FAN_HRPM, &high); - read_acpi_int(NULL, EEEPC_EC_FAN_LRPM, &low); - return (high << 8 | low); + ec_read(EEEPC_EC_FAN_HRPM, &high); + ec_read(EEEPC_EC_FAN_LRPM, &low); + return high << 8 | low; } static int eeepc_get_fan_ctrl(void) { - int value = 0; + u8 value = 0; - read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value); + ec_read(EEEPC_EC_FAN_CTRL, &value); if (value & 0x02) return 1; /* manual */ else @@ -940,14 +939,14 @@ static int eeepc_get_fan_ctrl(void) static void eeepc_set_fan_ctrl(int manual) { - int value = 0; + u8 value = 0; - read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value); + ec_read(EEEPC_EC_FAN_CTRL, &value); if (manual == 1) value |= 0x02; else value &= ~0x02; - ec_write(EEEPC_EC_SFB3, value); + ec_write(EEEPC_EC_FAN_CTRL, value); } static ssize_t store_sys_hwmon(void (*set)(int), const char *buf, size_t count) -- cgit v1.2.3 From bf9598bcd5a73385ced7880ea09998a545e03dd8 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:45:04 +0000 Subject: eeepc-laptop: refactor notifications Separate out input_notify(), in a similar way to how notify_brn() is already separated. This will allow all the functions which refer to the input device to be grouped together. This includes a small behaviour change - we now synthesize brightness up/down key events even if the brightness is already at the maximum/minimum value. This is consistent with the new uevent interface. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 71 ++++++++++++++++++++----------------- 1 file changed, 39 insertions(+), 32 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 04a59d3bcad2..b4eacb68a19d 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -655,9 +655,8 @@ static int eeepc_hotk_init(void) return 0; } -static int notify_brn(void) +static int eeepc_backlight_notify(void) { - /* returns the *previous* brightness, or -1 */ struct backlight_device *bd = eeepc_backlight_device; int old = bd->props.brightness; @@ -731,50 +730,58 @@ static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) eeepc_rfkill_hotplug(); } -static void eeepc_hotk_notify(struct acpi_device *device, u32 event) +static void eeepc_input_notify(int event) { static struct key_entry *key; + + key = eepc_get_entry_by_scancode(event); + if (key) { + switch (key->type) { + case KE_KEY: + input_report_key(ehotk->inputdev, key->keycode, + 1); + input_sync(ehotk->inputdev); + input_report_key(ehotk->inputdev, key->keycode, + 0); + input_sync(ehotk->inputdev); + break; + } + } +} + +static void eeepc_hotk_notify(struct acpi_device *device, u32 event) +{ u16 count; - int brn = -ENODEV; if (event > ACPI_MAX_SYS_NOTIFY) return; - if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) - brn = notify_brn(); count = ehotk->event_count[event % 128]++; acpi_bus_generate_proc_event(ehotk->device, event, count); acpi_bus_generate_netlink_event(ehotk->device->pnp.device_class, dev_name(&ehotk->device->dev), event, count); - if (ehotk->inputdev) { - /* brightness-change events need special - * handling for conversion to key events - */ - if (brn < 0) - brn = event; - else - brn += NOTIFY_BRN_MIN; - if (event < brn) + + if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) { + int old_brightness, new_brightness; + + /* Update backlight device. */ + old_brightness = eeepc_backlight_notify(); + + /* Convert brightness event to keypress (obsolescent hack). */ + new_brightness = event - NOTIFY_BRN_MIN; + + if (new_brightness < old_brightness) { event = NOTIFY_BRN_MIN; /* brightness down */ - else if (event > brn) - event = NOTIFY_BRN_MIN + 2; /* ... up */ - else - event = NOTIFY_BRN_MIN + 1; /* ... unchanged */ - - key = eepc_get_entry_by_scancode(event); - if (key) { - switch (key->type) { - case KE_KEY: - input_report_key(ehotk->inputdev, key->keycode, - 1); - input_sync(ehotk->inputdev); - input_report_key(ehotk->inputdev, key->keycode, - 0); - input_sync(ehotk->inputdev); - break; - } + } else if (new_brightness > old_brightness) { + event = NOTIFY_BRN_MAX; /* brightness up */ + } else { + /* + * no change in brightness - already at min/max, + * event will be desired value (or else ignored). + */ } } + eeepc_input_notify(event); } static int eeepc_register_rfkill_notifier(char *node) -- cgit v1.2.3 From 22072e92a038d2ee5848b3e54499ecab730c722c Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:45:05 +0000 Subject: eeepc-laptop: move platform driver registration out of eeepc_hotk_add() Strictly speaking we should register the platform driver exactly once, whether there are zero, one, or multiple matching acpi devices. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index b4eacb68a19d..3f9b286b854e 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -1276,13 +1276,10 @@ static int __devinit eeepc_hotk_add(struct acpi_device *device) result = eeepc_hotk_init(); if (result) - goto fail_platform_driver; + goto fail_platform_device1; eeepc_enable_camera(); /* Register platform stuff */ - result = platform_driver_register(&platform_driver); - if (result) - goto fail_platform_driver; platform_device = platform_device_alloc(EEEPC_HOTK_FILE, -1); if (!platform_device) { result = -ENOMEM; @@ -1340,8 +1337,6 @@ fail_sysfs: fail_platform_device2: platform_device_put(platform_device); fail_platform_device1: - platform_driver_unregister(&platform_driver); -fail_platform_driver: kfree(ehotk); return result; @@ -1357,7 +1352,6 @@ static int eeepc_hotk_remove(struct acpi_device *device, int type) sysfs_remove_group(&platform_device->dev.kobj, &platform_attribute_group); platform_device_unregister(platform_device); - platform_driver_unregister(&platform_driver); kfree(ehotk); return 0; @@ -1367,19 +1361,30 @@ static int __init eeepc_laptop_init(void) { int result; - result = acpi_bus_register_driver(&eeepc_hotk_driver); + result = platform_driver_register(&platform_driver); if (result < 0) return result; + + result = acpi_bus_register_driver(&eeepc_hotk_driver); + if (result < 0) + goto fail_acpi_driver; if (!ehotk) { - acpi_bus_unregister_driver(&eeepc_hotk_driver); - return -ENODEV; + result = -ENODEV; + goto fail_no_device; } return 0; + +fail_no_device: + acpi_bus_unregister_driver(&eeepc_hotk_driver); +fail_acpi_driver: + platform_driver_unregister(&platform_driver); + return result; } static void __exit eeepc_laptop_exit(void) { acpi_bus_unregister_driver(&eeepc_hotk_driver); + platform_driver_unregister(&platform_driver); } module_init(eeepc_laptop_init); -- cgit v1.2.3 From 9db106be554288df5a0a7c56c20257a4391b9738 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:45:06 +0000 Subject: eeepc-laptop: move platform device initialisation to a separate function This moves the sysfs_create_group() call just after the declaration of the platform device attributes. It should make it easier to examine the implementation of the platform device attributes in isolation from the rest of the code. (The next commit will apply this pattern to all of the sub-devices as well). Signed-off-by: Alan Jenkins --- drivers/platform/x86/eeepc-laptop.c | 64 ++++++++++++++++++++++--------------- 1 file changed, 39 insertions(+), 25 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 3f9b286b854e..f4f67967aae2 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -509,6 +509,38 @@ static struct attribute_group platform_attribute_group = { .attrs = platform_attributes }; +static int eeepc_platform_init(void) +{ + int result; + + platform_device = platform_device_alloc(EEEPC_HOTK_FILE, -1); + if (!platform_device) + return -ENOMEM; + + result = platform_device_add(platform_device); + if (result) + goto fail_platform_device; + + result = sysfs_create_group(&platform_device->dev.kobj, + &platform_attribute_group); + if (result) + goto fail_sysfs; + return 0; + +fail_sysfs: + platform_device_del(platform_device); +fail_platform_device: + platform_device_put(platform_device); + return result; +} + +static void eeepc_platform_exit(void) +{ + sysfs_remove_group(&platform_device->dev.kobj, + &platform_attribute_group); + platform_device_unregister(platform_device); +} + /* * LEDs */ @@ -1276,22 +1308,12 @@ static int __devinit eeepc_hotk_add(struct acpi_device *device) result = eeepc_hotk_init(); if (result) - goto fail_platform_device1; + goto fail_platform; eeepc_enable_camera(); - /* Register platform stuff */ - platform_device = platform_device_alloc(EEEPC_HOTK_FILE, -1); - if (!platform_device) { - result = -ENOMEM; - goto fail_platform_device1; - } - result = platform_device_add(platform_device); + result = eeepc_platform_init(); if (result) - goto fail_platform_device2; - result = sysfs_create_group(&platform_device->dev.kobj, - &platform_attribute_group); - if (result) - goto fail_sysfs; + goto fail_platform; dev = &platform_device->dev; @@ -1300,8 +1322,7 @@ static int __devinit eeepc_hotk_add(struct acpi_device *device) if (result) goto fail_backlight; } else - pr_info("Backlight controlled by ACPI video " - "driver\n"); + pr_info("Backlight controlled by ACPI video driver\n"); result = eeepc_input_init(dev); if (result) @@ -1330,13 +1351,8 @@ fail_hwmon: fail_input: eeepc_backlight_exit(); fail_backlight: - sysfs_remove_group(&platform_device->dev.kobj, - &platform_attribute_group); -fail_sysfs: - platform_device_del(platform_device); -fail_platform_device2: - platform_device_put(platform_device); -fail_platform_device1: + eeepc_platform_exit(); +fail_platform: kfree(ehotk); return result; @@ -1349,9 +1365,7 @@ static int eeepc_hotk_remove(struct acpi_device *device, int type) eeepc_input_exit(); eeepc_hwmon_exit(); eeepc_led_exit(); - sysfs_remove_group(&platform_device->dev.kobj, - &platform_attribute_group); - platform_device_unregister(platform_device); + eeepc_platform_exit(); kfree(ehotk); return 0; -- cgit v1.2.3 From 52bbe3c7b413d656833686f9f08e5dcab3786eeb Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:45:07 +0000 Subject: eeepc-laptop: code movement Move e.g. backlight_init() and backlight_exit() together along with the other backlight functions, instead of grouping init() and exit() functions. Move e.g. backlight_ops to follow the functions it refers to, and remove the forward declarations. The code itself should remain unchanged. The eeepc-laptop driver implements a number of interfaces like the backlight class driver. This change makes it easier to examine the implementation of one interface at at a time, without having to search through the file to find init() and exit() functions etc. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 1022 +++++++++++++++++------------------ 1 file changed, 506 insertions(+), 516 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index f4f67967aae2..f457587e64d3 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -44,6 +44,9 @@ #define EEEPC_HOTK_DEVICE_NAME "Hotkey" #define EEEPC_HOTK_HID "ASUS010" +MODULE_AUTHOR("Corentin Chary, Eric Cooper"); +MODULE_DESCRIPTION(EEEPC_HOTK_NAME); +MODULE_LICENSE("GPL"); /* * Definitions for Asus EeePC @@ -118,57 +121,6 @@ static const char *cm_setv[] = { NULL, NULL, "PBPS", "TPDS" }; -#define EEEPC_EC_SC00 0x61 -#define EEEPC_EC_FAN_PWM (EEEPC_EC_SC00 + 2) /* Fan PWM duty cycle (%) */ -#define EEEPC_EC_FAN_HRPM (EEEPC_EC_SC00 + 5) /* High byte, fan speed (RPM) */ -#define EEEPC_EC_FAN_LRPM (EEEPC_EC_SC00 + 6) /* Low byte, fan speed (RPM) */ - -#define EEEPC_EC_SFB0 0xD0 -#define EEEPC_EC_FAN_CTRL (EEEPC_EC_SFB0 + 3) /* Byte containing SF25 */ - - -/* - * This is the main structure, we can use it to store useful information - * about the hotk device - */ -struct eeepc_hotk { - struct acpi_device *device; /* the device we are in */ - acpi_handle handle; /* the handle of the hotk device */ - u32 cm_supported; /* the control methods supported - by this BIOS */ - u16 event_count[128]; /* count for each event */ - struct input_dev *inputdev; - u16 *keycode_map; - struct rfkill *wlan_rfkill; - struct rfkill *bluetooth_rfkill; - struct rfkill *wwan3g_rfkill; - struct rfkill *wimax_rfkill; - struct hotplug_slot *hotplug_slot; - struct mutex hotplug_lock; -}; - -/* The actual device the driver binds to */ -static struct eeepc_hotk *ehotk; - -/* Platform device/driver */ -static int eeepc_hotk_thaw(struct device *device); -static int eeepc_hotk_restore(struct device *device); - -static struct dev_pm_ops eeepc_pm_ops = { - .thaw = eeepc_hotk_thaw, - .restore = eeepc_hotk_restore, -}; - -static struct platform_driver platform_driver = { - .driver = { - .name = EEEPC_HOTK_FILE, - .owner = THIS_MODULE, - .pm = &eeepc_pm_ops, - } -}; - -static struct platform_device *platform_device; - struct key_entry { char type; u8 code; @@ -189,48 +141,40 @@ static struct key_entry eeepc_keymap[] = { {KE_KEY, 0x1b, KEY_ZOOM }, {KE_KEY, 0x1c, KEY_PROG2 }, {KE_KEY, 0x1d, KEY_PROG3 }, - {KE_KEY, NOTIFY_BRN_MIN, KEY_BRIGHTNESSDOWN }, - {KE_KEY, NOTIFY_BRN_MIN + 2, KEY_BRIGHTNESSUP }, + {KE_KEY, NOTIFY_BRN_MIN, KEY_BRIGHTNESSDOWN }, + {KE_KEY, NOTIFY_BRN_MAX, KEY_BRIGHTNESSUP }, {KE_KEY, 0x30, KEY_SWITCHVIDEOMODE }, {KE_KEY, 0x31, KEY_SWITCHVIDEOMODE }, {KE_KEY, 0x32, KEY_SWITCHVIDEOMODE }, {KE_END, 0}, }; + /* - * The hotkey driver declaration + * This is the main structure, we can use it to store useful information + * about the hotk device */ -static int eeepc_hotk_add(struct acpi_device *device); -static int eeepc_hotk_remove(struct acpi_device *device, int type); -static void eeepc_hotk_notify(struct acpi_device *device, u32 event); - -static const struct acpi_device_id eeepc_device_ids[] = { - {EEEPC_HOTK_HID, 0}, - {"", 0}, -}; -MODULE_DEVICE_TABLE(acpi, eeepc_device_ids); - -static struct acpi_driver eeepc_hotk_driver = { - .name = EEEPC_HOTK_NAME, - .class = EEEPC_HOTK_CLASS, - .owner = THIS_MODULE, - .ids = eeepc_device_ids, - .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, - .ops = { - .add = eeepc_hotk_add, - .remove = eeepc_hotk_remove, - .notify = eeepc_hotk_notify, - }, +struct eeepc_hotk { + struct acpi_device *device; /* the device we are in */ + acpi_handle handle; /* the handle of the hotk device */ + u32 cm_supported; /* the control methods supported + by this BIOS */ + u16 event_count[128]; /* count for each event */ + struct input_dev *inputdev; + u16 *keycode_map; + struct rfkill *wlan_rfkill; + struct rfkill *bluetooth_rfkill; + struct rfkill *wwan3g_rfkill; + struct rfkill *wimax_rfkill; + struct hotplug_slot *hotplug_slot; + struct mutex hotplug_lock; }; -/* PCI hotplug ops */ -static int eeepc_get_adapter_status(struct hotplug_slot *slot, u8 *value); +/* The actual device the driver binds to */ +static struct eeepc_hotk *ehotk; -static struct hotplug_slot_ops eeepc_hotplug_slot_ops = { - .owner = THIS_MODULE, - .get_adapter_status = eeepc_get_adapter_status, - .get_power_status = eeepc_get_adapter_status, -}; +/* The platform device */ +static struct platform_device *platform_device; /* The backlight device /sys/class/backlight */ static struct backlight_device *eeepc_backlight_device; @@ -238,19 +182,6 @@ static struct backlight_device *eeepc_backlight_device; /* The hwmon device */ static struct device *eeepc_hwmon_device; -/* - * The backlight class declaration - */ -static int read_brightness(struct backlight_device *bd); -static int update_bl_status(struct backlight_device *bd); -static struct backlight_ops eeepcbl_ops = { - .get_brightness = read_brightness, - .update_status = update_bl_status, -}; - -MODULE_AUTHOR("Corentin Chary, Eric Cooper"); -MODULE_DESCRIPTION(EEEPC_HOTK_NAME); -MODULE_LICENSE("GPL"); /* * ACPI Helpers @@ -314,55 +245,6 @@ static int get_acpi(int cm) return value; } -/* - * Backlight - */ -static int read_brightness(struct backlight_device *bd) -{ - return get_acpi(CM_ASL_PANELBRIGHT); -} - -static int set_brightness(struct backlight_device *bd, int value) -{ - return set_acpi(CM_ASL_PANELBRIGHT, value); -} - -static int update_bl_status(struct backlight_device *bd) -{ - return set_brightness(bd, bd->props.brightness); -} - -/* - * Rfkill helpers - */ - -static bool eeepc_wlan_rfkill_blocked(void) -{ - if (get_acpi(CM_ASL_WLAN) == 1) - return false; - return true; -} - -static int eeepc_rfkill_set(void *data, bool blocked) -{ - unsigned long asl = (unsigned long)data; - return set_acpi(asl, !blocked); -} - -static const struct rfkill_ops eeepc_rfkill_ops = { - .set_block = eeepc_rfkill_set, -}; - -static void __devinit eeepc_enable_camera(void) -{ - /* - * If the following call to set_acpi() fails, it's because there's no - * camera so we can ignore the error. - */ - if (get_acpi(CM_ASL_CAMERA) == 0) - set_acpi(CM_ASL_CAMERA, 1); -} - /* * Sys helpers */ @@ -574,248 +456,97 @@ static struct led_classdev tpd_led = { .max_brightness = 1 }; -/* - * Hotkey functions - */ -static struct key_entry *eepc_get_entry_by_scancode(int code) +static int eeepc_led_init(struct device *dev) { - struct key_entry *key; - - for (key = eeepc_keymap; key->type != KE_END; key++) - if (code == key->code) - return key; + int rv; - return NULL; -} + if (get_acpi(CM_ASL_TPD) == -ENODEV) + return 0; -static struct key_entry *eepc_get_entry_by_keycode(int code) -{ - struct key_entry *key; + led_workqueue = create_singlethread_workqueue("led_workqueue"); + if (!led_workqueue) + return -ENOMEM; - for (key = eeepc_keymap; key->type != KE_END; key++) - if (code == key->keycode && key->type == KE_KEY) - return key; + rv = led_classdev_register(dev, &tpd_led); + if (rv) { + destroy_workqueue(led_workqueue); + return rv; + } - return NULL; + return 0; } -static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode) +static void eeepc_led_exit(void) { - struct key_entry *key = eepc_get_entry_by_scancode(scancode); + if (tpd_led.dev) + led_classdev_unregister(&tpd_led); + if (led_workqueue) + destroy_workqueue(led_workqueue); +} - if (key && key->type == KE_KEY) { - *keycode = key->keycode; - return 0; - } - return -EINVAL; +/* + * PCI hotplug (for wlan rfkill) + */ +static bool eeepc_wlan_rfkill_blocked(void) +{ + if (get_acpi(CM_ASL_WLAN) == 1) + return false; + return true; } -static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode) +static void eeepc_rfkill_hotplug(void) { - struct key_entry *key; - int old_keycode; + struct pci_dev *dev; + struct pci_bus *bus; + bool blocked = eeepc_wlan_rfkill_blocked(); - if (keycode < 0 || keycode > KEY_MAX) - return -EINVAL; + if (ehotk->wlan_rfkill) + rfkill_set_sw_state(ehotk->wlan_rfkill, blocked); - key = eepc_get_entry_by_scancode(scancode); - if (key && key->type == KE_KEY) { - old_keycode = key->keycode; - key->keycode = keycode; - set_bit(keycode, dev->keybit); - if (!eepc_get_entry_by_keycode(old_keycode)) - clear_bit(old_keycode, dev->keybit); - return 0; + mutex_lock(&ehotk->hotplug_lock); + + if (ehotk->hotplug_slot) { + bus = pci_find_bus(0, 1); + if (!bus) { + pr_warning("Unable to find PCI bus 1?\n"); + goto out_unlock; + } + + if (!blocked) { + dev = pci_get_slot(bus, 0); + if (dev) { + /* Device already present */ + pci_dev_put(dev); + goto out_unlock; + } + dev = pci_scan_single_device(bus, 0); + if (dev) { + pci_bus_assign_resources(bus); + if (pci_bus_add_device(dev)) + pr_err("Unable to hotplug wifi\n"); + } + } else { + dev = pci_get_slot(bus, 0); + if (dev) { + pci_remove_bus_device(dev); + pci_dev_put(dev); + } + } } - return -EINVAL; +out_unlock: + mutex_unlock(&ehotk->hotplug_lock); } -static void cmsg_quirk(int cm, const char *name) +static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) { - int dummy; - - /* Some BIOSes do not report cm although it is avaliable. - Check if cm_getv[cm] works and, if yes, assume cm should be set. */ - if (!(ehotk->cm_supported & (1 << cm)) - && !read_acpi_int(ehotk->handle, cm_getv[cm], &dummy)) { - pr_info("%s (%x) not reported by BIOS," - " enabling anyway\n", name, 1 << cm); - ehotk->cm_supported |= 1 << cm; - } -} - -static void cmsg_quirks(void) -{ - cmsg_quirk(CM_ASL_LID, "LID"); - cmsg_quirk(CM_ASL_TYPE, "TYPE"); - cmsg_quirk(CM_ASL_PANELPOWER, "PANELPOWER"); - cmsg_quirk(CM_ASL_TPD, "TPD"); -} - -static int eeepc_hotk_init(void) -{ - unsigned int init_flags; - int result; - - result = acpi_bus_get_status(ehotk->device); - if (result) - return result; - if (!ehotk->device->status.present) { - pr_err("Hotkey device not present, aborting\n"); - return -ENODEV; - } - - init_flags = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; - pr_notice("Hotkey init flags 0x%x\n", init_flags); - - if (write_acpi_int(ehotk->handle, "INIT", init_flags)) { - pr_err("Hotkey initialization failed\n"); - return -ENODEV; - } - - /* get control methods supported */ - if (read_acpi_int(ehotk->handle, "CMSG", - &ehotk->cm_supported)) { - pr_err("Get control methods supported failed\n"); - return -ENODEV; - } - cmsg_quirks(); - pr_info("Get control methods supported: 0x%x\n", ehotk->cm_supported); - - return 0; -} - -static int eeepc_backlight_notify(void) -{ - struct backlight_device *bd = eeepc_backlight_device; - int old = bd->props.brightness; - - backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); - - return old; -} - -static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot, - u8 *value) -{ - int val = get_acpi(CM_ASL_WLAN); - - if (val == 1 || val == 0) - *value = val; - else - return -EINVAL; - - return 0; -} - -static void eeepc_rfkill_hotplug(void) -{ - struct pci_dev *dev; - struct pci_bus *bus; - bool blocked = eeepc_wlan_rfkill_blocked(); - - if (ehotk->wlan_rfkill) - rfkill_set_sw_state(ehotk->wlan_rfkill, blocked); - - mutex_lock(&ehotk->hotplug_lock); - - if (ehotk->hotplug_slot) { - bus = pci_find_bus(0, 1); - if (!bus) { - pr_warning("Unable to find PCI bus 1?\n"); - goto out_unlock; - } - - if (!blocked) { - dev = pci_get_slot(bus, 0); - if (dev) { - /* Device already present */ - pci_dev_put(dev); - goto out_unlock; - } - dev = pci_scan_single_device(bus, 0); - if (dev) { - pci_bus_assign_resources(bus); - if (pci_bus_add_device(dev)) - pr_err("Unable to hotplug wifi\n"); - } - } else { - dev = pci_get_slot(bus, 0); - if (dev) { - pci_remove_bus_device(dev); - pci_dev_put(dev); - } - } - } - -out_unlock: - mutex_unlock(&ehotk->hotplug_lock); -} - -static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) -{ - if (event != ACPI_NOTIFY_BUS_CHECK) - return; + if (event != ACPI_NOTIFY_BUS_CHECK) + return; eeepc_rfkill_hotplug(); } -static void eeepc_input_notify(int event) -{ - static struct key_entry *key; - - key = eepc_get_entry_by_scancode(event); - if (key) { - switch (key->type) { - case KE_KEY: - input_report_key(ehotk->inputdev, key->keycode, - 1); - input_sync(ehotk->inputdev); - input_report_key(ehotk->inputdev, key->keycode, - 0); - input_sync(ehotk->inputdev); - break; - } - } -} - -static void eeepc_hotk_notify(struct acpi_device *device, u32 event) -{ - u16 count; - - if (event > ACPI_MAX_SYS_NOTIFY) - return; - count = ehotk->event_count[event % 128]++; - acpi_bus_generate_proc_event(ehotk->device, event, count); - acpi_bus_generate_netlink_event(ehotk->device->pnp.device_class, - dev_name(&ehotk->device->dev), event, - count); - - if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) { - int old_brightness, new_brightness; - - /* Update backlight device. */ - old_brightness = eeepc_backlight_notify(); - - /* Convert brightness event to keypress (obsolescent hack). */ - new_brightness = event - NOTIFY_BRN_MIN; - - if (new_brightness < old_brightness) { - event = NOTIFY_BRN_MIN; /* brightness down */ - } else if (new_brightness > old_brightness) { - event = NOTIFY_BRN_MAX; /* brightness up */ - } else { - /* - * no change in brightness - already at min/max, - * event will be desired value (or else ignored). - */ - } - } - eeepc_input_notify(event); -} - static int eeepc_register_rfkill_notifier(char *node) { acpi_status status = AE_OK; @@ -853,12 +584,31 @@ static void eeepc_unregister_rfkill_notifier(char *node) } } +static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot, + u8 *value) +{ + int val = get_acpi(CM_ASL_WLAN); + + if (val == 1 || val == 0) + *value = val; + else + return -EINVAL; + + return 0; +} + static void eeepc_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot) { kfree(hotplug_slot->info); kfree(hotplug_slot); } +static struct hotplug_slot_ops eeepc_hotplug_slot_ops = { + .owner = THIS_MODULE, + .get_adapter_status = eeepc_get_adapter_status, + .get_power_status = eeepc_get_adapter_status, +}; + static int eeepc_setup_pci_hotplug(void) { int ret = -ENOMEM; @@ -901,6 +651,140 @@ error_slot: return ret; } +/* + * Rfkill devices + */ +static int eeepc_rfkill_set(void *data, bool blocked) +{ + unsigned long asl = (unsigned long)data; + return set_acpi(asl, !blocked); +} + +static const struct rfkill_ops eeepc_rfkill_ops = { + .set_block = eeepc_rfkill_set, +}; + +static int eeepc_new_rfkill(struct rfkill **rfkill, + const char *name, struct device *dev, + enum rfkill_type type, int cm) +{ + int result; + + result = get_acpi(cm); + if (result < 0) + return result; + + *rfkill = rfkill_alloc(name, dev, type, + &eeepc_rfkill_ops, (void *)(unsigned long)cm); + + if (!*rfkill) + return -EINVAL; + + rfkill_init_sw_state(*rfkill, get_acpi(cm) != 1); + result = rfkill_register(*rfkill); + if (result) { + rfkill_destroy(*rfkill); + *rfkill = NULL; + return result; + } + return 0; +} + +static void eeepc_rfkill_exit(void) +{ + eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P5"); + eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); + eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); + if (ehotk->wlan_rfkill) { + rfkill_unregister(ehotk->wlan_rfkill); + rfkill_destroy(ehotk->wlan_rfkill); + ehotk->wlan_rfkill = NULL; + } + /* + * Refresh pci hotplug in case the rfkill state was changed after + * eeepc_unregister_rfkill_notifier() + */ + eeepc_rfkill_hotplug(); + if (ehotk->hotplug_slot) + pci_hp_deregister(ehotk->hotplug_slot); + + if (ehotk->bluetooth_rfkill) { + rfkill_unregister(ehotk->bluetooth_rfkill); + rfkill_destroy(ehotk->bluetooth_rfkill); + ehotk->bluetooth_rfkill = NULL; + } + if (ehotk->wwan3g_rfkill) { + rfkill_unregister(ehotk->wwan3g_rfkill); + rfkill_destroy(ehotk->wwan3g_rfkill); + ehotk->wwan3g_rfkill = NULL; + } + if (ehotk->wimax_rfkill) { + rfkill_unregister(ehotk->wimax_rfkill); + rfkill_destroy(ehotk->wimax_rfkill); + ehotk->wimax_rfkill = NULL; + } +} + +static int eeepc_rfkill_init(struct device *dev) +{ + int result = 0; + + mutex_init(&ehotk->hotplug_lock); + + result = eeepc_new_rfkill(&ehotk->wlan_rfkill, + "eeepc-wlan", dev, + RFKILL_TYPE_WLAN, CM_ASL_WLAN); + + if (result && result != -ENODEV) + goto exit; + + result = eeepc_new_rfkill(&ehotk->bluetooth_rfkill, + "eeepc-bluetooth", dev, + RFKILL_TYPE_BLUETOOTH, CM_ASL_BLUETOOTH); + + if (result && result != -ENODEV) + goto exit; + + result = eeepc_new_rfkill(&ehotk->wwan3g_rfkill, + "eeepc-wwan3g", dev, + RFKILL_TYPE_WWAN, CM_ASL_3G); + + if (result && result != -ENODEV) + goto exit; + + result = eeepc_new_rfkill(&ehotk->wimax_rfkill, + "eeepc-wimax", dev, + RFKILL_TYPE_WIMAX, CM_ASL_WIMAX); + + if (result && result != -ENODEV) + goto exit; + + result = eeepc_setup_pci_hotplug(); + /* + * If we get -EBUSY then something else is handling the PCI hotplug - + * don't fail in this case + */ + if (result == -EBUSY) + result = 0; + + eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P5"); + eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6"); + eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7"); + /* + * Refresh pci hotplug in case the rfkill state was changed during + * setup. + */ + eeepc_rfkill_hotplug(); + +exit: + if (result && result != -ENODEV) + eeepc_rfkill_exit(); + return result; +} + +/* + * Platform driver - hibernate/resume callbacks + */ static int eeepc_hotk_thaw(struct device *device) { if (ehotk->wlan_rfkill) { @@ -937,9 +821,31 @@ static int eeepc_hotk_restore(struct device *device) return 0; } +static struct dev_pm_ops eeepc_pm_ops = { + .thaw = eeepc_hotk_thaw, + .restore = eeepc_hotk_restore, +}; + +static struct platform_driver platform_driver = { + .driver = { + .name = EEEPC_HOTK_FILE, + .owner = THIS_MODULE, + .pm = &eeepc_pm_ops, + } +}; + /* - * Hwmon + * Hwmon device */ + +#define EEEPC_EC_SC00 0x61 +#define EEEPC_EC_FAN_PWM (EEEPC_EC_SC00 + 2) /* Fan PWM duty cycle (%) */ +#define EEEPC_EC_FAN_HRPM (EEEPC_EC_SC00 + 5) /* High byte, fan speed (RPM) */ +#define EEEPC_EC_FAN_LRPM (EEEPC_EC_SC00 + 6) /* Low byte, fan speed (RPM) */ + +#define EEEPC_EC_SFB0 0xD0 +#define EEEPC_EC_FAN_CTRL (EEEPC_EC_SFB0 + 3) /* Byte containing SF25 */ + static int eeepc_get_fan_pwm(void) { u8 value = 0; @@ -1043,57 +949,6 @@ static struct attribute_group hwmon_attribute_group = { .attrs = hwmon_attributes }; -/* - * exit/init - */ -static void eeepc_backlight_exit(void) -{ - if (eeepc_backlight_device) - backlight_device_unregister(eeepc_backlight_device); - eeepc_backlight_device = NULL; -} - -static void eeepc_rfkill_exit(void) -{ - eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P5"); - eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); - eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); - if (ehotk->wlan_rfkill) { - rfkill_unregister(ehotk->wlan_rfkill); - rfkill_destroy(ehotk->wlan_rfkill); - ehotk->wlan_rfkill = NULL; - } - /* - * Refresh pci hotplug in case the rfkill state was changed after - * eeepc_unregister_rfkill_notifier() - */ - eeepc_rfkill_hotplug(); - if (ehotk->hotplug_slot) - pci_hp_deregister(ehotk->hotplug_slot); - - if (ehotk->bluetooth_rfkill) { - rfkill_unregister(ehotk->bluetooth_rfkill); - rfkill_destroy(ehotk->bluetooth_rfkill); - ehotk->bluetooth_rfkill = NULL; - } - if (ehotk->wwan3g_rfkill) { - rfkill_unregister(ehotk->wwan3g_rfkill); - rfkill_destroy(ehotk->wwan3g_rfkill); - ehotk->wwan3g_rfkill = NULL; - } - if (ehotk->wimax_rfkill) { - rfkill_unregister(ehotk->wimax_rfkill); - rfkill_destroy(ehotk->wimax_rfkill); - ehotk->wimax_rfkill = NULL; - } -} - -static void eeepc_input_exit(void) -{ - if (ehotk->inputdev) - input_unregister_device(ehotk->inputdev); -} - static void eeepc_hwmon_exit(void) { struct device *hwmon; @@ -1107,96 +962,56 @@ static void eeepc_hwmon_exit(void) eeepc_hwmon_device = NULL; } -static void eeepc_led_exit(void) -{ - if (tpd_led.dev) - led_classdev_unregister(&tpd_led); - if (led_workqueue) - destroy_workqueue(led_workqueue); -} - -static int eeepc_new_rfkill(struct rfkill **rfkill, - const char *name, struct device *dev, - enum rfkill_type type, int cm) +static int eeepc_hwmon_init(struct device *dev) { + struct device *hwmon; int result; - result = get_acpi(cm); - if (result < 0) - return result; - - *rfkill = rfkill_alloc(name, dev, type, - &eeepc_rfkill_ops, (void *)(unsigned long)cm); - - if (!*rfkill) - return -EINVAL; - - rfkill_init_sw_state(*rfkill, get_acpi(cm) != 1); - result = rfkill_register(*rfkill); - if (result) { - rfkill_destroy(*rfkill); - *rfkill = NULL; - return result; + hwmon = hwmon_device_register(dev); + if (IS_ERR(hwmon)) { + pr_err("Could not register eeepc hwmon device\n"); + eeepc_hwmon_device = NULL; + return PTR_ERR(hwmon); } - return 0; + eeepc_hwmon_device = hwmon; + result = sysfs_create_group(&hwmon->kobj, + &hwmon_attribute_group); + if (result) + eeepc_hwmon_exit(); + return result; } - -static int eeepc_rfkill_init(struct device *dev) +/* + * Backlight device + */ +static int read_brightness(struct backlight_device *bd) { - int result = 0; - - mutex_init(&ehotk->hotplug_lock); - - result = eeepc_new_rfkill(&ehotk->wlan_rfkill, - "eeepc-wlan", dev, - RFKILL_TYPE_WLAN, CM_ASL_WLAN); - - if (result && result != -ENODEV) - goto exit; - - result = eeepc_new_rfkill(&ehotk->bluetooth_rfkill, - "eeepc-bluetooth", dev, - RFKILL_TYPE_BLUETOOTH, CM_ASL_BLUETOOTH); - - if (result && result != -ENODEV) - goto exit; - - result = eeepc_new_rfkill(&ehotk->wwan3g_rfkill, - "eeepc-wwan3g", dev, - RFKILL_TYPE_WWAN, CM_ASL_3G); + return get_acpi(CM_ASL_PANELBRIGHT); +} - if (result && result != -ENODEV) - goto exit; +static int set_brightness(struct backlight_device *bd, int value) +{ + return set_acpi(CM_ASL_PANELBRIGHT, value); +} - result = eeepc_new_rfkill(&ehotk->wimax_rfkill, - "eeepc-wimax", dev, - RFKILL_TYPE_WIMAX, CM_ASL_WIMAX); +static int update_bl_status(struct backlight_device *bd) +{ + return set_brightness(bd, bd->props.brightness); +} - if (result && result != -ENODEV) - goto exit; +static struct backlight_ops eeepcbl_ops = { + .get_brightness = read_brightness, + .update_status = update_bl_status, +}; - result = eeepc_setup_pci_hotplug(); - /* - * If we get -EBUSY then something else is handling the PCI hotplug - - * don't fail in this case - */ - if (result == -EBUSY) - result = 0; +static int eeepc_backlight_notify(void) +{ + struct backlight_device *bd = eeepc_backlight_device; + int old = bd->props.brightness; - eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P5"); - eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6"); - eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7"); - /* - * Refresh pci hotplug in case the rfkill state was changed during - * setup. - */ - eeepc_rfkill_hotplug(); + backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); -exit: - if (result && result != -ENODEV) - eeepc_rfkill_exit(); - return result; + return old; } static int eeepc_backlight_init(struct device *dev) @@ -1218,23 +1033,89 @@ static int eeepc_backlight_init(struct device *dev) return 0; } -static int eeepc_hwmon_init(struct device *dev) +static void eeepc_backlight_exit(void) { - struct device *hwmon; - int result; + if (eeepc_backlight_device) + backlight_device_unregister(eeepc_backlight_device); + eeepc_backlight_device = NULL; +} - hwmon = hwmon_device_register(dev); - if (IS_ERR(hwmon)) { - pr_err("Could not register eeepc hwmon device\n"); - eeepc_hwmon_device = NULL; - return PTR_ERR(hwmon); + +/* + * Input device (i.e. hotkeys) + */ +static struct key_entry *eeepc_get_entry_by_scancode(int code) +{ + struct key_entry *key; + + for (key = eeepc_keymap; key->type != KE_END; key++) + if (code == key->code) + return key; + + return NULL; +} + +static void eeepc_input_notify(int event) +{ + static struct key_entry *key; + + key = eeepc_get_entry_by_scancode(event); + if (key) { + switch (key->type) { + case KE_KEY: + input_report_key(ehotk->inputdev, key->keycode, + 1); + input_sync(ehotk->inputdev); + input_report_key(ehotk->inputdev, key->keycode, + 0); + input_sync(ehotk->inputdev); + break; + } } - eeepc_hwmon_device = hwmon; - result = sysfs_create_group(&hwmon->kobj, - &hwmon_attribute_group); - if (result) - eeepc_hwmon_exit(); - return result; +} + +static struct key_entry *eepc_get_entry_by_keycode(int code) +{ + struct key_entry *key; + + for (key = eeepc_keymap; key->type != KE_END; key++) + if (code == key->keycode && key->type == KE_KEY) + return key; + + return NULL; +} + +static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode) +{ + struct key_entry *key = eeepc_get_entry_by_scancode(scancode); + + if (key && key->type == KE_KEY) { + *keycode = key->keycode; + return 0; + } + + return -EINVAL; +} + +static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode) +{ + struct key_entry *key; + int old_keycode; + + if (keycode < 0 || keycode > KEY_MAX) + return -EINVAL; + + key = eeepc_get_entry_by_scancode(scancode); + if (key && key->type == KE_KEY) { + old_keycode = key->keycode; + key->keycode = keycode; + set_bit(keycode, dev->keybit); + if (!eepc_get_entry_by_keycode(old_keycode)) + clear_bit(old_keycode, dev->keybit); + return 0; + } + + return -EINVAL; } static int eeepc_input_init(struct device *dev) @@ -1271,26 +1152,114 @@ static int eeepc_input_init(struct device *dev) return 0; } -static int eeepc_led_init(struct device *dev) +static void eeepc_input_exit(void) { - int rv; + if (ehotk->inputdev) + input_unregister_device(ehotk->inputdev); +} - if (get_acpi(CM_ASL_TPD) == -ENODEV) - return 0; +/* + * ACPI driver + */ +static void eeepc_hotk_notify(struct acpi_device *device, u32 event) +{ + u16 count; - led_workqueue = create_singlethread_workqueue("led_workqueue"); - if (!led_workqueue) - return -ENOMEM; + if (event > ACPI_MAX_SYS_NOTIFY) + return; + count = ehotk->event_count[event % 128]++; + acpi_bus_generate_proc_event(ehotk->device, event, count); + acpi_bus_generate_netlink_event(ehotk->device->pnp.device_class, + dev_name(&ehotk->device->dev), event, + count); - rv = led_classdev_register(dev, &tpd_led); - if (rv) { - destroy_workqueue(led_workqueue); - return rv; + if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) { + int old_brightness, new_brightness; + + /* Update backlight device. */ + old_brightness = eeepc_backlight_notify(); + + /* Convert brightness event to keypress (obsolescent hack). */ + new_brightness = event - NOTIFY_BRN_MIN; + + if (new_brightness < old_brightness) { + event = NOTIFY_BRN_MIN; /* brightness down */ + } else if (new_brightness > old_brightness) { + event = NOTIFY_BRN_MAX; /* brightness up */ + } else { + /* + * no change in brightness - already at min/max, + * event will be desired value (or else ignored). + */ + } + } + eeepc_input_notify(event); +} + +static void cmsg_quirk(int cm, const char *name) +{ + int dummy; + + /* Some BIOSes do not report cm although it is avaliable. + Check if cm_getv[cm] works and, if yes, assume cm should be set. */ + if (!(ehotk->cm_supported & (1 << cm)) + && !read_acpi_int(ehotk->handle, cm_getv[cm], &dummy)) { + pr_info("%s (%x) not reported by BIOS," + " enabling anyway\n", name, 1 << cm); + ehotk->cm_supported |= 1 << cm; + } +} + +static void cmsg_quirks(void) +{ + cmsg_quirk(CM_ASL_LID, "LID"); + cmsg_quirk(CM_ASL_TYPE, "TYPE"); + cmsg_quirk(CM_ASL_PANELPOWER, "PANELPOWER"); + cmsg_quirk(CM_ASL_TPD, "TPD"); +} + +static int eeepc_hotk_init(void) +{ + unsigned int init_flags; + int result; + + result = acpi_bus_get_status(ehotk->device); + if (result) + return result; + if (!ehotk->device->status.present) { + pr_err("Hotkey device not present, aborting\n"); + return -ENODEV; + } + + init_flags = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; + pr_notice("Hotkey init flags 0x%x\n", init_flags); + + if (write_acpi_int(ehotk->handle, "INIT", init_flags)) { + pr_err("Hotkey initialization failed\n"); + return -ENODEV; + } + + /* get control methods supported */ + if (read_acpi_int(ehotk->handle, "CMSG", &ehotk->cm_supported)) { + pr_err("Get control methods supported failed\n"); + return -ENODEV; } + cmsg_quirks(); + pr_info("Get control methods supported: 0x%x\n", ehotk->cm_supported); return 0; } +static void __devinit eeepc_enable_camera(void) +{ + /* + * If the following call to set_acpi() fails, it's because there's no + * camera so we can ignore the error. + */ + if (get_acpi(CM_ASL_CAMERA) == 0) + set_acpi(CM_ASL_CAMERA, 1); +} + static int __devinit eeepc_hotk_add(struct acpi_device *device) { struct device *dev; @@ -1371,6 +1340,27 @@ static int eeepc_hotk_remove(struct acpi_device *device, int type) return 0; } + +static const struct acpi_device_id eeepc_device_ids[] = { + {EEEPC_HOTK_HID, 0}, + {"", 0}, +}; +MODULE_DEVICE_TABLE(acpi, eeepc_device_ids); + +static struct acpi_driver eeepc_hotk_driver = { + .name = EEEPC_HOTK_NAME, + .class = EEEPC_HOTK_CLASS, + .owner = THIS_MODULE, + .ids = eeepc_device_ids, + .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, + .ops = { + .add = eeepc_hotk_add, + .remove = eeepc_hotk_remove, + .notify = eeepc_hotk_notify, + }, +}; + + static int __init eeepc_laptop_init(void) { int result; -- cgit v1.2.3 From a7624b63fdf50d7f460170891a49397280f08758 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:45:08 +0000 Subject: eeepc-laptop: revise names eeepc-laptop now does a lot more than just hotkeys. Replace the "hotk" names used throughout the driver with some slightly more appropriate names. The actual strings used in kernel messages and sysfs are left unchanged. e.g. EEEPC_HOTK_FILE -> EEEPC_LAPTOP_FILE EEEPC_HOTK_HID -> EEEPC_ACPI_HID eeepc_hotk_notify -> eeepc_acpi_notify struct eeepc_hotk -> struct eeepc_laptop ehotk -> eeepc I'm about to refactor the entire driver to remove the global "ehotk" variable, and I don't wish to add "struct eeepc_hotk *ehotk" to functions which have nothing to do with hotkeys. Also - fix the name of "eepc_get_entry_by_keycode()" - remove the unused definition of NOTIFY_WLAN_ON. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 253 ++++++++++++++++++------------------ 1 file changed, 125 insertions(+), 128 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index f457587e64d3..b9b5aebbd5b0 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -1,5 +1,5 @@ /* - * eepc-laptop.c - Asus Eee PC extras + * eeepc-laptop.c - Asus Eee PC extras * * Based on asus_acpi.c as patched for the Eee PC by Asus: * ftp://ftp.asus.com/pub/ASUS/EeePC/701/ASUS_ACPI_071126.rar @@ -37,21 +37,20 @@ #include #define EEEPC_LAPTOP_VERSION "0.1" +#define EEEPC_LAPTOP_NAME "Eee PC Hotkey Driver" +#define EEEPC_LAPTOP_FILE "eeepc" -#define EEEPC_HOTK_NAME "Eee PC Hotkey Driver" -#define EEEPC_HOTK_FILE "eeepc" -#define EEEPC_HOTK_CLASS "hotkey" -#define EEEPC_HOTK_DEVICE_NAME "Hotkey" -#define EEEPC_HOTK_HID "ASUS010" +#define EEEPC_ACPI_CLASS "hotkey" +#define EEEPC_ACPI_DEVICE_NAME "Hotkey" +#define EEEPC_ACPI_HID "ASUS010" MODULE_AUTHOR("Corentin Chary, Eric Cooper"); -MODULE_DESCRIPTION(EEEPC_HOTK_NAME); +MODULE_DESCRIPTION(EEEPC_LAPTOP_NAME); MODULE_LICENSE("GPL"); /* * Definitions for Asus EeePC */ -#define NOTIFY_WLAN_ON 0x10 #define NOTIFY_BRN_MIN 0x20 #define NOTIFY_BRN_MAX 0x2f @@ -152,9 +151,8 @@ static struct key_entry eeepc_keymap[] = { /* * This is the main structure, we can use it to store useful information - * about the hotk device */ -struct eeepc_hotk { +struct eeepc_laptop { struct acpi_device *device; /* the device we are in */ acpi_handle handle; /* the handle of the hotk device */ u32 cm_supported; /* the control methods supported @@ -171,7 +169,7 @@ struct eeepc_hotk { }; /* The actual device the driver binds to */ -static struct eeepc_hotk *ehotk; +static struct eeepc_laptop *eeepc; /* The platform device */ static struct platform_device *platform_device; @@ -222,10 +220,10 @@ static int set_acpi(int cm, int value) if (method == NULL) return -ENODEV; - if ((ehotk->cm_supported & (0x1 << cm)) == 0) + if ((eeepc->cm_supported & (0x1 << cm)) == 0) return -ENODEV; - if (write_acpi_int(ehotk->handle, method, value)) + if (write_acpi_int(eeepc->handle, method, value)) pr_warning("Error writing %s\n", method); return 0; } @@ -237,10 +235,10 @@ static int get_acpi(int cm) if (method == NULL) return -ENODEV; - if ((ehotk->cm_supported & (0x1 << cm)) == 0) + if ((eeepc->cm_supported & (0x1 << cm)) == 0) return -ENODEV; - if (read_acpi_int(ehotk->handle, method, &value)) + if (read_acpi_int(eeepc->handle, method, &value)) pr_warning("Error reading %s\n", method); return value; } @@ -395,7 +393,7 @@ static int eeepc_platform_init(void) { int result; - platform_device = platform_device_alloc(EEEPC_HOTK_FILE, -1); + platform_device = platform_device_alloc(EEEPC_LAPTOP_FILE, -1); if (!platform_device) return -ENOMEM; @@ -501,12 +499,12 @@ static void eeepc_rfkill_hotplug(void) struct pci_bus *bus; bool blocked = eeepc_wlan_rfkill_blocked(); - if (ehotk->wlan_rfkill) - rfkill_set_sw_state(ehotk->wlan_rfkill, blocked); + if (eeepc->wlan_rfkill) + rfkill_set_sw_state(eeepc->wlan_rfkill, blocked); - mutex_lock(&ehotk->hotplug_lock); + mutex_lock(&eeepc->hotplug_lock); - if (ehotk->hotplug_slot) { + if (eeepc->hotplug_slot) { bus = pci_find_bus(0, 1); if (!bus) { pr_warning("Unable to find PCI bus 1?\n"); @@ -536,7 +534,7 @@ static void eeepc_rfkill_hotplug(void) } out_unlock: - mutex_unlock(&ehotk->hotplug_lock); + mutex_unlock(&eeepc->hotplug_lock); } static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) @@ -619,22 +617,22 @@ static int eeepc_setup_pci_hotplug(void) return -ENODEV; } - ehotk->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL); - if (!ehotk->hotplug_slot) + eeepc->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL); + if (!eeepc->hotplug_slot) goto error_slot; - ehotk->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info), + eeepc->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info), GFP_KERNEL); - if (!ehotk->hotplug_slot->info) + if (!eeepc->hotplug_slot->info) goto error_info; - ehotk->hotplug_slot->private = ehotk; - ehotk->hotplug_slot->release = &eeepc_cleanup_pci_hotplug; - ehotk->hotplug_slot->ops = &eeepc_hotplug_slot_ops; - eeepc_get_adapter_status(ehotk->hotplug_slot, - &ehotk->hotplug_slot->info->adapter_status); + eeepc->hotplug_slot->private = eeepc; + eeepc->hotplug_slot->release = &eeepc_cleanup_pci_hotplug; + eeepc->hotplug_slot->ops = &eeepc_hotplug_slot_ops; + eeepc_get_adapter_status(eeepc->hotplug_slot, + &eeepc->hotplug_slot->info->adapter_status); - ret = pci_hp_register(ehotk->hotplug_slot, bus, 0, "eeepc-wifi"); + ret = pci_hp_register(eeepc->hotplug_slot, bus, 0, "eeepc-wifi"); if (ret) { pr_err("Unable to register hotplug slot - %d\n", ret); goto error_register; @@ -643,10 +641,10 @@ static int eeepc_setup_pci_hotplug(void) return 0; error_register: - kfree(ehotk->hotplug_slot->info); + kfree(eeepc->hotplug_slot->info); error_info: - kfree(ehotk->hotplug_slot); - ehotk->hotplug_slot = NULL; + kfree(eeepc->hotplug_slot); + eeepc->hotplug_slot = NULL; error_slot: return ret; } @@ -695,33 +693,33 @@ static void eeepc_rfkill_exit(void) eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P5"); eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); - if (ehotk->wlan_rfkill) { - rfkill_unregister(ehotk->wlan_rfkill); - rfkill_destroy(ehotk->wlan_rfkill); - ehotk->wlan_rfkill = NULL; + if (eeepc->wlan_rfkill) { + rfkill_unregister(eeepc->wlan_rfkill); + rfkill_destroy(eeepc->wlan_rfkill); + eeepc->wlan_rfkill = NULL; } /* * Refresh pci hotplug in case the rfkill state was changed after * eeepc_unregister_rfkill_notifier() */ eeepc_rfkill_hotplug(); - if (ehotk->hotplug_slot) - pci_hp_deregister(ehotk->hotplug_slot); + if (eeepc->hotplug_slot) + pci_hp_deregister(eeepc->hotplug_slot); - if (ehotk->bluetooth_rfkill) { - rfkill_unregister(ehotk->bluetooth_rfkill); - rfkill_destroy(ehotk->bluetooth_rfkill); - ehotk->bluetooth_rfkill = NULL; + if (eeepc->bluetooth_rfkill) { + rfkill_unregister(eeepc->bluetooth_rfkill); + rfkill_destroy(eeepc->bluetooth_rfkill); + eeepc->bluetooth_rfkill = NULL; } - if (ehotk->wwan3g_rfkill) { - rfkill_unregister(ehotk->wwan3g_rfkill); - rfkill_destroy(ehotk->wwan3g_rfkill); - ehotk->wwan3g_rfkill = NULL; + if (eeepc->wwan3g_rfkill) { + rfkill_unregister(eeepc->wwan3g_rfkill); + rfkill_destroy(eeepc->wwan3g_rfkill); + eeepc->wwan3g_rfkill = NULL; } - if (ehotk->wimax_rfkill) { - rfkill_unregister(ehotk->wimax_rfkill); - rfkill_destroy(ehotk->wimax_rfkill); - ehotk->wimax_rfkill = NULL; + if (eeepc->wimax_rfkill) { + rfkill_unregister(eeepc->wimax_rfkill); + rfkill_destroy(eeepc->wimax_rfkill); + eeepc->wimax_rfkill = NULL; } } @@ -729,30 +727,30 @@ static int eeepc_rfkill_init(struct device *dev) { int result = 0; - mutex_init(&ehotk->hotplug_lock); + mutex_init(&eeepc->hotplug_lock); - result = eeepc_new_rfkill(&ehotk->wlan_rfkill, + result = eeepc_new_rfkill(&eeepc->wlan_rfkill, "eeepc-wlan", dev, RFKILL_TYPE_WLAN, CM_ASL_WLAN); if (result && result != -ENODEV) goto exit; - result = eeepc_new_rfkill(&ehotk->bluetooth_rfkill, + result = eeepc_new_rfkill(&eeepc->bluetooth_rfkill, "eeepc-bluetooth", dev, RFKILL_TYPE_BLUETOOTH, CM_ASL_BLUETOOTH); if (result && result != -ENODEV) goto exit; - result = eeepc_new_rfkill(&ehotk->wwan3g_rfkill, + result = eeepc_new_rfkill(&eeepc->wwan3g_rfkill, "eeepc-wwan3g", dev, RFKILL_TYPE_WWAN, CM_ASL_3G); if (result && result != -ENODEV) goto exit; - result = eeepc_new_rfkill(&ehotk->wimax_rfkill, + result = eeepc_new_rfkill(&eeepc->wimax_rfkill, "eeepc-wimax", dev, RFKILL_TYPE_WIMAX, CM_ASL_WIMAX); @@ -785,9 +783,9 @@ exit: /* * Platform driver - hibernate/resume callbacks */ -static int eeepc_hotk_thaw(struct device *device) +static int eeepc_thaw(struct device *device) { - if (ehotk->wlan_rfkill) { + if (eeepc->wlan_rfkill) { bool wlan; /* @@ -802,33 +800,33 @@ static int eeepc_hotk_thaw(struct device *device) return 0; } -static int eeepc_hotk_restore(struct device *device) +static int eeepc_restore(struct device *device) { /* Refresh both wlan rfkill state and pci hotplug */ - if (ehotk->wlan_rfkill) + if (eeepc->wlan_rfkill) eeepc_rfkill_hotplug(); - if (ehotk->bluetooth_rfkill) - rfkill_set_sw_state(ehotk->bluetooth_rfkill, + if (eeepc->bluetooth_rfkill) + rfkill_set_sw_state(eeepc->bluetooth_rfkill, get_acpi(CM_ASL_BLUETOOTH) != 1); - if (ehotk->wwan3g_rfkill) - rfkill_set_sw_state(ehotk->wwan3g_rfkill, + if (eeepc->wwan3g_rfkill) + rfkill_set_sw_state(eeepc->wwan3g_rfkill, get_acpi(CM_ASL_3G) != 1); - if (ehotk->wimax_rfkill) - rfkill_set_sw_state(ehotk->wimax_rfkill, + if (eeepc->wimax_rfkill) + rfkill_set_sw_state(eeepc->wimax_rfkill, get_acpi(CM_ASL_WIMAX) != 1); return 0; } static struct dev_pm_ops eeepc_pm_ops = { - .thaw = eeepc_hotk_thaw, - .restore = eeepc_hotk_restore, + .thaw = eeepc_thaw, + .restore = eeepc_restore, }; static struct platform_driver platform_driver = { .driver = { - .name = EEEPC_HOTK_FILE, + .name = EEEPC_LAPTOP_FILE, .owner = THIS_MODULE, .pm = &eeepc_pm_ops, } @@ -1018,7 +1016,7 @@ static int eeepc_backlight_init(struct device *dev) { struct backlight_device *bd; - bd = backlight_device_register(EEEPC_HOTK_FILE, dev, + bd = backlight_device_register(EEEPC_LAPTOP_FILE, dev, NULL, &eeepcbl_ops); if (IS_ERR(bd)) { pr_err("Could not register eeepc backlight device\n"); @@ -1063,12 +1061,12 @@ static void eeepc_input_notify(int event) if (key) { switch (key->type) { case KE_KEY: - input_report_key(ehotk->inputdev, key->keycode, + input_report_key(eeepc->inputdev, key->keycode, 1); - input_sync(ehotk->inputdev); - input_report_key(ehotk->inputdev, key->keycode, + input_sync(eeepc->inputdev); + input_report_key(eeepc->inputdev, key->keycode, 0); - input_sync(ehotk->inputdev); + input_sync(eeepc->inputdev); break; } } @@ -1123,30 +1121,30 @@ static int eeepc_input_init(struct device *dev) const struct key_entry *key; int result; - ehotk->inputdev = input_allocate_device(); - if (!ehotk->inputdev) { + eeepc->inputdev = input_allocate_device(); + if (!eeepc->inputdev) { pr_info("Unable to allocate input device\n"); return -ENOMEM; } - ehotk->inputdev->name = "Asus EeePC extra buttons"; - ehotk->inputdev->dev.parent = dev; - ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0"; - ehotk->inputdev->id.bustype = BUS_HOST; - ehotk->inputdev->getkeycode = eeepc_getkeycode; - ehotk->inputdev->setkeycode = eeepc_setkeycode; + eeepc->inputdev->name = "Asus EeePC extra buttons"; + eeepc->inputdev->dev.parent = dev; + eeepc->inputdev->phys = EEEPC_LAPTOP_FILE "/input0"; + eeepc->inputdev->id.bustype = BUS_HOST; + eeepc->inputdev->getkeycode = eeepc_getkeycode; + eeepc->inputdev->setkeycode = eeepc_setkeycode; for (key = eeepc_keymap; key->type != KE_END; key++) { switch (key->type) { case KE_KEY: - set_bit(EV_KEY, ehotk->inputdev->evbit); - set_bit(key->keycode, ehotk->inputdev->keybit); + set_bit(EV_KEY, eeepc->inputdev->evbit); + set_bit(key->keycode, eeepc->inputdev->keybit); break; } } - result = input_register_device(ehotk->inputdev); + result = input_register_device(eeepc->inputdev); if (result) { pr_info("Unable to register input device\n"); - input_free_device(ehotk->inputdev); + input_free_device(eeepc->inputdev); return result; } return 0; @@ -1154,23 +1152,23 @@ static int eeepc_input_init(struct device *dev) static void eeepc_input_exit(void) { - if (ehotk->inputdev) - input_unregister_device(ehotk->inputdev); + if (eeepc->inputdev) + input_unregister_device(eeepc->inputdev); } /* * ACPI driver */ -static void eeepc_hotk_notify(struct acpi_device *device, u32 event) +static void eeepc_acpi_notify(struct acpi_device *device, u32 event) { u16 count; if (event > ACPI_MAX_SYS_NOTIFY) return; - count = ehotk->event_count[event % 128]++; - acpi_bus_generate_proc_event(ehotk->device, event, count); - acpi_bus_generate_netlink_event(ehotk->device->pnp.device_class, - dev_name(&ehotk->device->dev), event, + count = eeepc->event_count[event % 128]++; + acpi_bus_generate_proc_event(eeepc->device, event, count); + acpi_bus_generate_netlink_event(eeepc->device->pnp.device_class, + dev_name(&eeepc->device->dev), event, count); if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) { @@ -1202,11 +1200,11 @@ static void cmsg_quirk(int cm, const char *name) /* Some BIOSes do not report cm although it is avaliable. Check if cm_getv[cm] works and, if yes, assume cm should be set. */ - if (!(ehotk->cm_supported & (1 << cm)) - && !read_acpi_int(ehotk->handle, cm_getv[cm], &dummy)) { + if (!(eeepc->cm_supported & (1 << cm)) + && !read_acpi_int(eeepc->handle, cm_getv[cm], &dummy)) { pr_info("%s (%x) not reported by BIOS," " enabling anyway\n", name, 1 << cm); - ehotk->cm_supported |= 1 << cm; + eeepc->cm_supported |= 1 << cm; } } @@ -1218,15 +1216,15 @@ static void cmsg_quirks(void) cmsg_quirk(CM_ASL_TPD, "TPD"); } -static int eeepc_hotk_init(void) +static int eeepc_acpi_init(void) { unsigned int init_flags; int result; - result = acpi_bus_get_status(ehotk->device); + result = acpi_bus_get_status(eeepc->device); if (result) return result; - if (!ehotk->device->status.present) { + if (!eeepc->device->status.present) { pr_err("Hotkey device not present, aborting\n"); return -ENODEV; } @@ -1234,18 +1232,18 @@ static int eeepc_hotk_init(void) init_flags = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; pr_notice("Hotkey init flags 0x%x\n", init_flags); - if (write_acpi_int(ehotk->handle, "INIT", init_flags)) { + if (write_acpi_int(eeepc->handle, "INIT", init_flags)) { pr_err("Hotkey initialization failed\n"); return -ENODEV; } /* get control methods supported */ - if (read_acpi_int(ehotk->handle, "CMSG", &ehotk->cm_supported)) { + if (read_acpi_int(eeepc->handle, "CMSG", &eeepc->cm_supported)) { pr_err("Get control methods supported failed\n"); return -ENODEV; } cmsg_quirks(); - pr_info("Get control methods supported: 0x%x\n", ehotk->cm_supported); + pr_info("Get control methods supported: 0x%x\n", eeepc->cm_supported); return 0; } @@ -1260,22 +1258,22 @@ static void __devinit eeepc_enable_camera(void) set_acpi(CM_ASL_CAMERA, 1); } -static int __devinit eeepc_hotk_add(struct acpi_device *device) +static int __devinit eeepc_acpi_add(struct acpi_device *device) { struct device *dev; int result; - pr_notice(EEEPC_HOTK_NAME "\n"); - ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL); - if (!ehotk) + pr_notice(EEEPC_LAPTOP_NAME "\n"); + eeepc = kzalloc(sizeof(struct eeepc_laptop), GFP_KERNEL); + if (!eeepc) return -ENOMEM; - ehotk->handle = device->handle; - strcpy(acpi_device_name(device), EEEPC_HOTK_DEVICE_NAME); - strcpy(acpi_device_class(device), EEEPC_HOTK_CLASS); - device->driver_data = ehotk; - ehotk->device = device; + eeepc->handle = device->handle; + strcpy(acpi_device_name(device), EEEPC_ACPI_DEVICE_NAME); + strcpy(acpi_device_class(device), EEEPC_ACPI_CLASS); + device->driver_data = eeepc; + eeepc->device = device; - result = eeepc_hotk_init(); + result = eeepc_acpi_init(); if (result) goto fail_platform; eeepc_enable_camera(); @@ -1283,7 +1281,6 @@ static int __devinit eeepc_hotk_add(struct acpi_device *device) result = eeepc_platform_init(); if (result) goto fail_platform; - dev = &platform_device->dev; if (!acpi_video_backlight_support()) { @@ -1322,12 +1319,12 @@ fail_input: fail_backlight: eeepc_platform_exit(); fail_platform: - kfree(ehotk); + kfree(eeepc); return result; } -static int eeepc_hotk_remove(struct acpi_device *device, int type) +static int eeepc_acpi_remove(struct acpi_device *device, int type) { eeepc_backlight_exit(); eeepc_rfkill_exit(); @@ -1336,27 +1333,27 @@ static int eeepc_hotk_remove(struct acpi_device *device, int type) eeepc_led_exit(); eeepc_platform_exit(); - kfree(ehotk); + kfree(eeepc); return 0; } static const struct acpi_device_id eeepc_device_ids[] = { - {EEEPC_HOTK_HID, 0}, + {EEEPC_ACPI_HID, 0}, {"", 0}, }; MODULE_DEVICE_TABLE(acpi, eeepc_device_ids); -static struct acpi_driver eeepc_hotk_driver = { - .name = EEEPC_HOTK_NAME, - .class = EEEPC_HOTK_CLASS, +static struct acpi_driver eeepc_acpi_driver = { + .name = EEEPC_LAPTOP_NAME, + .class = EEEPC_ACPI_CLASS, .owner = THIS_MODULE, .ids = eeepc_device_ids, .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, .ops = { - .add = eeepc_hotk_add, - .remove = eeepc_hotk_remove, - .notify = eeepc_hotk_notify, + .add = eeepc_acpi_add, + .remove = eeepc_acpi_remove, + .notify = eeepc_acpi_notify, }, }; @@ -1369,17 +1366,17 @@ static int __init eeepc_laptop_init(void) if (result < 0) return result; - result = acpi_bus_register_driver(&eeepc_hotk_driver); + result = acpi_bus_register_driver(&eeepc_acpi_driver); if (result < 0) goto fail_acpi_driver; - if (!ehotk) { + if (!eeepc) { result = -ENODEV; goto fail_no_device; } return 0; fail_no_device: - acpi_bus_unregister_driver(&eeepc_hotk_driver); + acpi_bus_unregister_driver(&eeepc_acpi_driver); fail_acpi_driver: platform_driver_unregister(&platform_driver); return result; @@ -1387,7 +1384,7 @@ fail_acpi_driver: static void __exit eeepc_laptop_exit(void) { - acpi_bus_unregister_driver(&eeepc_hotk_driver); + acpi_bus_unregister_driver(&eeepc_acpi_driver); platform_driver_unregister(&platform_driver); } -- cgit v1.2.3 From 854c78363f37f03e30e2856ef17d7eefc62e0d06 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:45:09 +0000 Subject: eeepc-laptop: callbacks should use "driver data" parameter or field Callback methods should not refer to a variable like "eeepc" (formally "ehotk"). Instead, they should extract the data they need either from a "driver data" parameter, or the "driver data" field of the object which they operate on. The "eeepc" variable can then be removed. In practice, drivers under "drivers/platform" can get away without using driver data, because it doesn't make sense to have more than one instance of them. However this makes it harder to review them for correctness. This is especially true for core ACPI developers who have not previously been exposed to this anti-pattern :-). This will serve as an example of best practice for new driver writers (whether they find it themselves, or have it pointed out during review :-). The hwmon sub-device is a special case. It uses ec_{read,write} which are defined to communicate with the (first) EC, so it does not require any driver data. It should still only be instantiated in the context of an ASUS010 device because we don't have a safe way to probe for it. Signed-off-by: Alan Jenkins CC: Bjorn Helgaas Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 466 +++++++++++++++++++++--------------- 1 file changed, 268 insertions(+), 198 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index b9b5aebbd5b0..935ec4404f08 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -128,7 +128,7 @@ struct key_entry { enum { KE_KEY, KE_END }; -static struct key_entry eeepc_keymap[] = { +static const struct key_entry eeepc_keymap[] = { /* Sleep already handled via generic ACPI code */ {KE_KEY, 0x10, KEY_WLAN }, {KE_KEY, 0x11, KEY_WLAN }, @@ -153,33 +153,31 @@ static struct key_entry eeepc_keymap[] = { * This is the main structure, we can use it to store useful information */ struct eeepc_laptop { - struct acpi_device *device; /* the device we are in */ - acpi_handle handle; /* the handle of the hotk device */ + acpi_handle handle; /* the handle of the acpi device */ u32 cm_supported; /* the control methods supported by this BIOS */ u16 event_count[128]; /* count for each event */ + + struct platform_device *platform_device; + struct device *hwmon_device; + struct backlight_device *backlight_device; + struct input_dev *inputdev; - u16 *keycode_map; + struct key_entry *keymap; + struct rfkill *wlan_rfkill; struct rfkill *bluetooth_rfkill; struct rfkill *wwan3g_rfkill; struct rfkill *wimax_rfkill; + struct hotplug_slot *hotplug_slot; struct mutex hotplug_lock; -}; - -/* The actual device the driver binds to */ -static struct eeepc_laptop *eeepc; - -/* The platform device */ -static struct platform_device *platform_device; - -/* The backlight device /sys/class/backlight */ -static struct backlight_device *eeepc_backlight_device; - -/* The hwmon device */ -static struct device *eeepc_hwmon_device; + struct led_classdev tpd_led; + int tpd_led_wk; + struct workqueue_struct *led_workqueue; + struct work_struct tpd_led_work; +}; /* * ACPI Helpers @@ -214,7 +212,7 @@ static int read_acpi_int(acpi_handle handle, const char *method, int *val) } } -static int set_acpi(int cm, int value) +static int set_acpi(struct eeepc_laptop *eeepc, int cm, int value) { const char *method = cm_setv[cm]; @@ -228,7 +226,7 @@ static int set_acpi(int cm, int value) return 0; } -static int get_acpi(int cm) +static int get_acpi(struct eeepc_laptop *eeepc, int cm) { const char *method = cm_getv[cm]; int value; @@ -243,6 +241,26 @@ static int get_acpi(int cm) return value; } +static int acpi_setter_handle(struct eeepc_laptop *eeepc, int cm, acpi_handle *handle) +{ + const char *method = cm_setv[cm]; + acpi_status status; + + if (method == NULL) + return -ENODEV; + if ((eeepc->cm_supported & (0x1 << cm)) == 0) + return -ENODEV; + + status = acpi_get_handle(eeepc->handle, (char *)method, + handle); + if (status != AE_OK) { + pr_warning("Error finding %s\n", method); + return -ENODEV; + } + return 0; +} + + /* * Sys helpers */ @@ -255,21 +273,24 @@ static int parse_arg(const char *buf, unsigned long count, int *val) return count; } -static ssize_t store_sys_acpi(int cm, const char *buf, size_t count) +static ssize_t store_sys_acpi(struct device *dev, int cm, + const char *buf, size_t count) { + struct eeepc_laptop *eeepc = dev_get_drvdata(dev); int rv, value; rv = parse_arg(buf, count, &value); if (rv > 0) - value = set_acpi(cm, value); + value = set_acpi(eeepc, cm, value); if (value < 0) return -EIO; return rv; } -static ssize_t show_sys_acpi(int cm, char *buf) +static ssize_t show_sys_acpi(struct device *dev, int cm, char *buf) { - int value = get_acpi(cm); + struct eeepc_laptop *eeepc = dev_get_drvdata(dev); + int value = get_acpi(eeepc, cm); if (value < 0) return -EIO; @@ -281,13 +302,13 @@ static ssize_t show_sys_acpi(int cm, char *buf) struct device_attribute *attr, \ char *buf) \ { \ - return show_sys_acpi(_cm, buf); \ + return show_sys_acpi(dev, _cm, buf); \ } \ static ssize_t store_##_name(struct device *dev, \ struct device_attribute *attr, \ const char *buf, size_t count) \ { \ - return store_sys_acpi(_cm, buf, count); \ + return store_sys_acpi(dev, _cm, buf, count); \ } \ static struct device_attribute dev_attr_##_name = { \ .attr = { \ @@ -306,9 +327,9 @@ struct eeepc_cpufv { int cur; }; -static int get_cpufv(struct eeepc_cpufv *c) +static int get_cpufv(struct eeepc_laptop *eeepc, struct eeepc_cpufv *c) { - c->cur = get_acpi(CM_ASL_CPUFV); + c->cur = get_acpi(eeepc, CM_ASL_CPUFV); c->num = (c->cur >> 8) & 0xff; c->cur &= 0xff; if (c->cur < 0 || c->num <= 0 || c->num > 12) @@ -320,11 +341,12 @@ static ssize_t show_available_cpufv(struct device *dev, struct device_attribute *attr, char *buf) { + struct eeepc_laptop *eeepc = dev_get_drvdata(dev); struct eeepc_cpufv c; int i; ssize_t len = 0; - if (get_cpufv(&c)) + if (get_cpufv(eeepc, &c)) return -ENODEV; for (i = 0; i < c.num; i++) len += sprintf(buf + len, "%d ", i); @@ -336,9 +358,10 @@ static ssize_t show_cpufv(struct device *dev, struct device_attribute *attr, char *buf) { + struct eeepc_laptop *eeepc = dev_get_drvdata(dev); struct eeepc_cpufv c; - if (get_cpufv(&c)) + if (get_cpufv(eeepc, &c)) return -ENODEV; return sprintf(buf, "%#x\n", (c.num << 8) | c.cur); } @@ -347,17 +370,18 @@ static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { + struct eeepc_laptop *eeepc = dev_get_drvdata(dev); struct eeepc_cpufv c; int rv, value; - if (get_cpufv(&c)) + if (get_cpufv(eeepc, &c)) return -ENODEV; rv = parse_arg(buf, count, &value); if (rv < 0) return rv; if (!rv || value < 0 || value >= c.num) return -EINVAL; - set_acpi(CM_ASL_CPUFV, value); + set_acpi(eeepc, CM_ASL_CPUFV, value); return rv; } @@ -389,36 +413,37 @@ static struct attribute_group platform_attribute_group = { .attrs = platform_attributes }; -static int eeepc_platform_init(void) +static int eeepc_platform_init(struct eeepc_laptop *eeepc) { int result; - platform_device = platform_device_alloc(EEEPC_LAPTOP_FILE, -1); - if (!platform_device) + eeepc->platform_device = platform_device_alloc(EEEPC_LAPTOP_FILE, -1); + if (!eeepc->platform_device) return -ENOMEM; + platform_set_drvdata(eeepc->platform_device, eeepc); - result = platform_device_add(platform_device); + result = platform_device_add(eeepc->platform_device); if (result) goto fail_platform_device; - result = sysfs_create_group(&platform_device->dev.kobj, + result = sysfs_create_group(&eeepc->platform_device->dev.kobj, &platform_attribute_group); if (result) goto fail_sysfs; return 0; fail_sysfs: - platform_device_del(platform_device); + platform_device_del(eeepc->platform_device); fail_platform_device: - platform_device_put(platform_device); + platform_device_put(eeepc->platform_device); return result; } -static void eeepc_platform_exit(void) +static void eeepc_platform_exit(struct eeepc_laptop *eeepc) { - sysfs_remove_group(&platform_device->dev.kobj, + sysfs_remove_group(&eeepc->platform_device->dev.kobj, &platform_attribute_group); - platform_device_unregister(platform_device); + platform_device_unregister(eeepc->platform_device); } /* @@ -430,74 +455,76 @@ static void eeepc_platform_exit(void) * subsystem asks, we avoid messing with the Asus ACPI stuff during a * potentially bad time, such as a timer interrupt. */ -static int tpd_led_wk; +static void tpd_led_update(struct work_struct *work) + { + struct eeepc_laptop *eeepc; -static void tpd_led_update(struct work_struct *ignored) -{ - int value = tpd_led_wk; - set_acpi(CM_ASL_TPD, value); -} + eeepc = container_of(work, struct eeepc_laptop, tpd_led_work); -static struct workqueue_struct *led_workqueue; -static DECLARE_WORK(tpd_led_work, tpd_led_update); + set_acpi(eeepc, CM_ASL_TPD, eeepc->tpd_led_wk); +} static void tpd_led_set(struct led_classdev *led_cdev, enum led_brightness value) { - tpd_led_wk = (value > 0) ? 1 : 0; - queue_work(led_workqueue, &tpd_led_work); -} + struct eeepc_laptop *eeepc; -static struct led_classdev tpd_led = { - .name = "eeepc::touchpad", - .brightness_set = tpd_led_set, - .max_brightness = 1 -}; + eeepc = container_of(led_cdev, struct eeepc_laptop, tpd_led); -static int eeepc_led_init(struct device *dev) + eeepc->tpd_led_wk = (value > 0) ? 1 : 0; + queue_work(eeepc->led_workqueue, &eeepc->tpd_led_work); +} + +static int eeepc_led_init(struct eeepc_laptop *eeepc) { int rv; - if (get_acpi(CM_ASL_TPD) == -ENODEV) + if (get_acpi(eeepc, CM_ASL_TPD) == -ENODEV) return 0; - led_workqueue = create_singlethread_workqueue("led_workqueue"); - if (!led_workqueue) + eeepc->led_workqueue = create_singlethread_workqueue("led_workqueue"); + if (!eeepc->led_workqueue) return -ENOMEM; + INIT_WORK(&eeepc->tpd_led_work, tpd_led_update); + + eeepc->tpd_led.name = "eeepc::touchpad"; + eeepc->tpd_led.brightness_set = tpd_led_set; + eeepc->tpd_led.max_brightness = 1; - rv = led_classdev_register(dev, &tpd_led); + rv = led_classdev_register(&eeepc->platform_device->dev, + &eeepc->tpd_led); if (rv) { - destroy_workqueue(led_workqueue); + destroy_workqueue(eeepc->led_workqueue); return rv; } return 0; } -static void eeepc_led_exit(void) +static void eeepc_led_exit(struct eeepc_laptop *eeepc) { - if (tpd_led.dev) - led_classdev_unregister(&tpd_led); - if (led_workqueue) - destroy_workqueue(led_workqueue); + if (eeepc->tpd_led.dev) + led_classdev_unregister(&eeepc->tpd_led); + if (eeepc->led_workqueue) + destroy_workqueue(eeepc->led_workqueue); } /* * PCI hotplug (for wlan rfkill) */ -static bool eeepc_wlan_rfkill_blocked(void) +static bool eeepc_wlan_rfkill_blocked(struct eeepc_laptop *eeepc) { - if (get_acpi(CM_ASL_WLAN) == 1) + if (get_acpi(eeepc, CM_ASL_WLAN) == 1) return false; return true; } -static void eeepc_rfkill_hotplug(void) +static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc) { struct pci_dev *dev; struct pci_bus *bus; - bool blocked = eeepc_wlan_rfkill_blocked(); + bool blocked = eeepc_wlan_rfkill_blocked(eeepc); if (eeepc->wlan_rfkill) rfkill_set_sw_state(eeepc->wlan_rfkill, blocked); @@ -539,15 +566,18 @@ out_unlock: static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) { + struct eeepc_laptop *eeepc = data; + if (event != ACPI_NOTIFY_BUS_CHECK) return; - eeepc_rfkill_hotplug(); + eeepc_rfkill_hotplug(eeepc); } -static int eeepc_register_rfkill_notifier(char *node) +static int eeepc_register_rfkill_notifier(struct eeepc_laptop *eeepc, + char *node) { - acpi_status status = AE_OK; + acpi_status status; acpi_handle handle; status = acpi_get_handle(NULL, node, &handle); @@ -556,7 +586,7 @@ static int eeepc_register_rfkill_notifier(char *node) status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, eeepc_rfkill_notify, - NULL); + eeepc); if (ACPI_FAILURE(status)) pr_warning("Failed to register notify on %s\n", node); } else @@ -565,7 +595,8 @@ static int eeepc_register_rfkill_notifier(char *node) return 0; } -static void eeepc_unregister_rfkill_notifier(char *node) +static void eeepc_unregister_rfkill_notifier(struct eeepc_laptop *eeepc, + char *node) { acpi_status status = AE_OK; acpi_handle handle; @@ -585,7 +616,8 @@ static void eeepc_unregister_rfkill_notifier(char *node) static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value) { - int val = get_acpi(CM_ASL_WLAN); + struct eeepc_laptop *eeepc = hotplug_slot->private; + int val = get_acpi(eeepc, CM_ASL_WLAN); if (val == 1 || val == 0) *value = val; @@ -607,7 +639,7 @@ static struct hotplug_slot_ops eeepc_hotplug_slot_ops = { .get_power_status = eeepc_get_adapter_status, }; -static int eeepc_setup_pci_hotplug(void) +static int eeepc_setup_pci_hotplug(struct eeepc_laptop *eeepc) { int ret = -ENOMEM; struct pci_bus *bus = pci_find_bus(0, 1); @@ -654,31 +686,34 @@ error_slot: */ static int eeepc_rfkill_set(void *data, bool blocked) { - unsigned long asl = (unsigned long)data; - return set_acpi(asl, !blocked); + acpi_handle handle = data; + + return write_acpi_int(handle, NULL, !blocked); } static const struct rfkill_ops eeepc_rfkill_ops = { .set_block = eeepc_rfkill_set, }; -static int eeepc_new_rfkill(struct rfkill **rfkill, - const char *name, struct device *dev, +static int eeepc_new_rfkill(struct eeepc_laptop *eeepc, + struct rfkill **rfkill, + const char *name, enum rfkill_type type, int cm) { + acpi_handle handle; int result; - result = get_acpi(cm); + result = acpi_setter_handle(eeepc, cm, &handle); if (result < 0) return result; - *rfkill = rfkill_alloc(name, dev, type, - &eeepc_rfkill_ops, (void *)(unsigned long)cm); + *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type, + &eeepc_rfkill_ops, handle); if (!*rfkill) return -EINVAL; - rfkill_init_sw_state(*rfkill, get_acpi(cm) != 1); + rfkill_init_sw_state(*rfkill, get_acpi(eeepc, cm) != 1); result = rfkill_register(*rfkill); if (result) { rfkill_destroy(*rfkill); @@ -688,11 +723,11 @@ static int eeepc_new_rfkill(struct rfkill **rfkill, return 0; } -static void eeepc_rfkill_exit(void) +static void eeepc_rfkill_exit(struct eeepc_laptop *eeepc) { - eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P5"); - eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); - eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); + eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5"); + eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6"); + eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7"); if (eeepc->wlan_rfkill) { rfkill_unregister(eeepc->wlan_rfkill); rfkill_destroy(eeepc->wlan_rfkill); @@ -702,7 +737,7 @@ static void eeepc_rfkill_exit(void) * Refresh pci hotplug in case the rfkill state was changed after * eeepc_unregister_rfkill_notifier() */ - eeepc_rfkill_hotplug(); + eeepc_rfkill_hotplug(eeepc); if (eeepc->hotplug_slot) pci_hp_deregister(eeepc->hotplug_slot); @@ -723,41 +758,41 @@ static void eeepc_rfkill_exit(void) } } -static int eeepc_rfkill_init(struct device *dev) +static int eeepc_rfkill_init(struct eeepc_laptop *eeepc) { int result = 0; mutex_init(&eeepc->hotplug_lock); - result = eeepc_new_rfkill(&eeepc->wlan_rfkill, - "eeepc-wlan", dev, - RFKILL_TYPE_WLAN, CM_ASL_WLAN); + result = eeepc_new_rfkill(eeepc, &eeepc->wlan_rfkill, + "eeepc-wlan", RFKILL_TYPE_WLAN, + CM_ASL_WLAN); if (result && result != -ENODEV) goto exit; - result = eeepc_new_rfkill(&eeepc->bluetooth_rfkill, - "eeepc-bluetooth", dev, - RFKILL_TYPE_BLUETOOTH, CM_ASL_BLUETOOTH); + result = eeepc_new_rfkill(eeepc, &eeepc->bluetooth_rfkill, + "eeepc-bluetooth", RFKILL_TYPE_BLUETOOTH, + CM_ASL_BLUETOOTH); if (result && result != -ENODEV) goto exit; - result = eeepc_new_rfkill(&eeepc->wwan3g_rfkill, - "eeepc-wwan3g", dev, - RFKILL_TYPE_WWAN, CM_ASL_3G); + result = eeepc_new_rfkill(eeepc, &eeepc->wwan3g_rfkill, + "eeepc-wwan3g", RFKILL_TYPE_WWAN, + CM_ASL_3G); if (result && result != -ENODEV) goto exit; - result = eeepc_new_rfkill(&eeepc->wimax_rfkill, - "eeepc-wimax", dev, - RFKILL_TYPE_WIMAX, CM_ASL_WIMAX); + result = eeepc_new_rfkill(eeepc, &eeepc->wimax_rfkill, + "eeepc-wimax", RFKILL_TYPE_WIMAX, + CM_ASL_WIMAX); if (result && result != -ENODEV) goto exit; - result = eeepc_setup_pci_hotplug(); + result = eeepc_setup_pci_hotplug(eeepc); /* * If we get -EBUSY then something else is handling the PCI hotplug - * don't fail in this case @@ -765,26 +800,28 @@ static int eeepc_rfkill_init(struct device *dev) if (result == -EBUSY) result = 0; - eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P5"); - eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6"); - eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7"); + eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5"); + eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6"); + eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7"); /* * Refresh pci hotplug in case the rfkill state was changed during * setup. */ - eeepc_rfkill_hotplug(); + eeepc_rfkill_hotplug(eeepc); exit: if (result && result != -ENODEV) - eeepc_rfkill_exit(); + eeepc_rfkill_exit(eeepc); return result; } /* * Platform driver - hibernate/resume callbacks */ -static int eeepc_thaw(struct device *device) +static int eeepc_hotk_thaw(struct device *device) { + struct eeepc_laptop *eeepc = dev_get_drvdata(device); + if (eeepc->wlan_rfkill) { bool wlan; @@ -793,35 +830,37 @@ static int eeepc_thaw(struct device *device) * during suspend. Normally it restores it on resume, but * we should kick it ourselves in case hibernation is aborted. */ - wlan = get_acpi(CM_ASL_WLAN); - set_acpi(CM_ASL_WLAN, wlan); + wlan = get_acpi(eeepc, CM_ASL_WLAN); + set_acpi(eeepc, CM_ASL_WLAN, wlan); } return 0; } -static int eeepc_restore(struct device *device) +static int eeepc_hotk_restore(struct device *device) { + struct eeepc_laptop *eeepc = dev_get_drvdata(device); + /* Refresh both wlan rfkill state and pci hotplug */ if (eeepc->wlan_rfkill) - eeepc_rfkill_hotplug(); + eeepc_rfkill_hotplug(eeepc); if (eeepc->bluetooth_rfkill) rfkill_set_sw_state(eeepc->bluetooth_rfkill, - get_acpi(CM_ASL_BLUETOOTH) != 1); + get_acpi(eeepc, CM_ASL_BLUETOOTH) != 1); if (eeepc->wwan3g_rfkill) rfkill_set_sw_state(eeepc->wwan3g_rfkill, - get_acpi(CM_ASL_3G) != 1); + get_acpi(eeepc, CM_ASL_3G) != 1); if (eeepc->wimax_rfkill) rfkill_set_sw_state(eeepc->wimax_rfkill, - get_acpi(CM_ASL_WIMAX) != 1); + get_acpi(eeepc, CM_ASL_WIMAX) != 1); return 0; } static struct dev_pm_ops eeepc_pm_ops = { - .thaw = eeepc_thaw, - .restore = eeepc_restore, + .thaw = eeepc_hotk_thaw, + .restore = eeepc_hotk_restore, }; static struct platform_driver platform_driver = { @@ -947,35 +986,35 @@ static struct attribute_group hwmon_attribute_group = { .attrs = hwmon_attributes }; -static void eeepc_hwmon_exit(void) +static void eeepc_hwmon_exit(struct eeepc_laptop *eeepc) { struct device *hwmon; - hwmon = eeepc_hwmon_device; + hwmon = eeepc->hwmon_device; if (!hwmon) - return ; + return; sysfs_remove_group(&hwmon->kobj, &hwmon_attribute_group); hwmon_device_unregister(hwmon); - eeepc_hwmon_device = NULL; + eeepc->hwmon_device = NULL; } -static int eeepc_hwmon_init(struct device *dev) +static int eeepc_hwmon_init(struct eeepc_laptop *eeepc) { struct device *hwmon; int result; - hwmon = hwmon_device_register(dev); + hwmon = hwmon_device_register(&eeepc->platform_device->dev); if (IS_ERR(hwmon)) { pr_err("Could not register eeepc hwmon device\n"); - eeepc_hwmon_device = NULL; + eeepc->hwmon_device = NULL; return PTR_ERR(hwmon); } - eeepc_hwmon_device = hwmon; + eeepc->hwmon_device = hwmon; result = sysfs_create_group(&hwmon->kobj, &hwmon_attribute_group); if (result) - eeepc_hwmon_exit(); + eeepc_hwmon_exit(eeepc); return result; } @@ -984,12 +1023,16 @@ static int eeepc_hwmon_init(struct device *dev) */ static int read_brightness(struct backlight_device *bd) { - return get_acpi(CM_ASL_PANELBRIGHT); + struct eeepc_laptop *eeepc = bl_get_data(bd); + + return get_acpi(eeepc, CM_ASL_PANELBRIGHT); } static int set_brightness(struct backlight_device *bd, int value) { - return set_acpi(CM_ASL_PANELBRIGHT, value); + struct eeepc_laptop *eeepc = bl_get_data(bd); + + return set_acpi(eeepc, CM_ASL_PANELBRIGHT, value); } static int update_bl_status(struct backlight_device *bd) @@ -1002,9 +1045,9 @@ static struct backlight_ops eeepcbl_ops = { .update_status = update_bl_status, }; -static int eeepc_backlight_notify(void) +static int eeepc_backlight_notify(struct eeepc_laptop *eeepc) { - struct backlight_device *bd = eeepc_backlight_device; + struct backlight_device *bd = eeepc->backlight_device; int old = bd->props.brightness; backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); @@ -1012,52 +1055,55 @@ static int eeepc_backlight_notify(void) return old; } -static int eeepc_backlight_init(struct device *dev) +static int eeepc_backlight_init(struct eeepc_laptop *eeepc) { struct backlight_device *bd; - bd = backlight_device_register(EEEPC_LAPTOP_FILE, dev, - NULL, &eeepcbl_ops); + bd = backlight_device_register(EEEPC_LAPTOP_FILE, + &eeepc->platform_device->dev, + eeepc, &eeepcbl_ops); if (IS_ERR(bd)) { pr_err("Could not register eeepc backlight device\n"); - eeepc_backlight_device = NULL; + eeepc->backlight_device = NULL; return PTR_ERR(bd); } - eeepc_backlight_device = bd; + eeepc->backlight_device = bd; bd->props.max_brightness = 15; - bd->props.brightness = read_brightness(NULL); + bd->props.brightness = read_brightness(bd); bd->props.power = FB_BLANK_UNBLANK; backlight_update_status(bd); return 0; } -static void eeepc_backlight_exit(void) +static void eeepc_backlight_exit(struct eeepc_laptop *eeepc) { - if (eeepc_backlight_device) - backlight_device_unregister(eeepc_backlight_device); - eeepc_backlight_device = NULL; + if (eeepc->backlight_device) + backlight_device_unregister(eeepc->backlight_device); + eeepc->backlight_device = NULL; } /* * Input device (i.e. hotkeys) */ -static struct key_entry *eeepc_get_entry_by_scancode(int code) +static struct key_entry *eeepc_get_entry_by_scancode( + struct eeepc_laptop *eeepc, + int code) { struct key_entry *key; - for (key = eeepc_keymap; key->type != KE_END; key++) + for (key = eeepc->keymap; key->type != KE_END; key++) if (code == key->code) return key; return NULL; } -static void eeepc_input_notify(int event) +static void eeepc_input_notify(struct eeepc_laptop *eeepc, int event) { static struct key_entry *key; - key = eeepc_get_entry_by_scancode(event); + key = eeepc_get_entry_by_scancode(eeepc, event); if (key) { switch (key->type) { case KE_KEY: @@ -1072,11 +1118,12 @@ static void eeepc_input_notify(int event) } } -static struct key_entry *eepc_get_entry_by_keycode(int code) +static struct key_entry *eeepc_get_entry_by_keycode( + struct eeepc_laptop *eeepc, int code) { struct key_entry *key; - for (key = eeepc_keymap; key->type != KE_END; key++) + for (key = eeepc->keymap; key->type != KE_END; key++) if (code == key->keycode && key->type == KE_KEY) return key; @@ -1085,7 +1132,8 @@ static struct key_entry *eepc_get_entry_by_keycode(int code) static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode) { - struct key_entry *key = eeepc_get_entry_by_scancode(scancode); + struct eeepc_laptop *eeepc = input_get_drvdata(dev); + struct key_entry *key = eeepc_get_entry_by_scancode(eeepc, scancode); if (key && key->type == KE_KEY) { *keycode = key->keycode; @@ -1097,18 +1145,19 @@ static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode) static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode) { + struct eeepc_laptop *eeepc = input_get_drvdata(dev); struct key_entry *key; int old_keycode; if (keycode < 0 || keycode > KEY_MAX) return -EINVAL; - key = eeepc_get_entry_by_scancode(scancode); + key = eeepc_get_entry_by_scancode(eeepc, scancode); if (key && key->type == KE_KEY) { old_keycode = key->keycode; key->keycode = keycode; set_bit(keycode, dev->keybit); - if (!eepc_get_entry_by_keycode(old_keycode)) + if (!eeepc_get_entry_by_keycode(eeepc, old_keycode)) clear_bit(old_keycode, dev->keybit); return 0; } @@ -1116,7 +1165,7 @@ static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode) return -EINVAL; } -static int eeepc_input_init(struct device *dev) +static int eeepc_input_init(struct eeepc_laptop *eeepc) { const struct key_entry *key; int result; @@ -1127,12 +1176,15 @@ static int eeepc_input_init(struct device *dev) return -ENOMEM; } eeepc->inputdev->name = "Asus EeePC extra buttons"; - eeepc->inputdev->dev.parent = dev; + eeepc->inputdev->dev.parent = &eeepc->platform_device->dev; eeepc->inputdev->phys = EEEPC_LAPTOP_FILE "/input0"; eeepc->inputdev->id.bustype = BUS_HOST; eeepc->inputdev->getkeycode = eeepc_getkeycode; eeepc->inputdev->setkeycode = eeepc_setkeycode; + input_set_drvdata(eeepc->inputdev, eeepc); + eeepc->keymap = kmemdup(eeepc_keymap, sizeof(eeepc_keymap), + GFP_KERNEL); for (key = eeepc_keymap; key->type != KE_END; key++) { switch (key->type) { case KE_KEY: @@ -1150,10 +1202,12 @@ static int eeepc_input_init(struct device *dev) return 0; } -static void eeepc_input_exit(void) +static void eeepc_input_exit(struct eeepc_laptop *eeepc) { - if (eeepc->inputdev) + if (eeepc->inputdev) { input_unregister_device(eeepc->inputdev); + kfree(eeepc->keymap); + } } /* @@ -1161,21 +1215,22 @@ static void eeepc_input_exit(void) */ static void eeepc_acpi_notify(struct acpi_device *device, u32 event) { + struct eeepc_laptop *eeepc = acpi_driver_data(device); u16 count; if (event > ACPI_MAX_SYS_NOTIFY) return; count = eeepc->event_count[event % 128]++; - acpi_bus_generate_proc_event(eeepc->device, event, count); - acpi_bus_generate_netlink_event(eeepc->device->pnp.device_class, - dev_name(&eeepc->device->dev), event, + acpi_bus_generate_proc_event(device, event, count); + acpi_bus_generate_netlink_event(device->pnp.device_class, + dev_name(&device->dev), event, count); if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) { int old_brightness, new_brightness; /* Update backlight device. */ - old_brightness = eeepc_backlight_notify(); + old_brightness = eeepc_backlight_notify(eeepc); /* Convert brightness event to keypress (obsolescent hack). */ new_brightness = event - NOTIFY_BRN_MIN; @@ -1191,10 +1246,10 @@ static void eeepc_acpi_notify(struct acpi_device *device, u32 event) */ } } - eeepc_input_notify(event); + eeepc_input_notify(eeepc, event); } -static void cmsg_quirk(int cm, const char *name) +static void cmsg_quirk(struct eeepc_laptop *eeepc, int cm, const char *name) { int dummy; @@ -1208,23 +1263,23 @@ static void cmsg_quirk(int cm, const char *name) } } -static void cmsg_quirks(void) +static void cmsg_quirks(struct eeepc_laptop *eeepc) { - cmsg_quirk(CM_ASL_LID, "LID"); - cmsg_quirk(CM_ASL_TYPE, "TYPE"); - cmsg_quirk(CM_ASL_PANELPOWER, "PANELPOWER"); - cmsg_quirk(CM_ASL_TPD, "TPD"); + cmsg_quirk(eeepc, CM_ASL_LID, "LID"); + cmsg_quirk(eeepc, CM_ASL_TYPE, "TYPE"); + cmsg_quirk(eeepc, CM_ASL_PANELPOWER, "PANELPOWER"); + cmsg_quirk(eeepc, CM_ASL_TPD, "TPD"); } -static int eeepc_acpi_init(void) +static int eeepc_acpi_init(struct eeepc_laptop *eeepc, struct acpi_device *device) { unsigned int init_flags; int result; - result = acpi_bus_get_status(eeepc->device); + result = acpi_bus_get_status(device); if (result) return result; - if (!eeepc->device->status.present) { + if (!device->status.present) { pr_err("Hotkey device not present, aborting\n"); return -ENODEV; } @@ -1242,25 +1297,27 @@ static int eeepc_acpi_init(void) pr_err("Get control methods supported failed\n"); return -ENODEV; } - cmsg_quirks(); + cmsg_quirks(eeepc); pr_info("Get control methods supported: 0x%x\n", eeepc->cm_supported); return 0; } -static void __devinit eeepc_enable_camera(void) +static void __devinit eeepc_enable_camera(struct eeepc_laptop *eeepc) { /* * If the following call to set_acpi() fails, it's because there's no * camera so we can ignore the error. */ - if (get_acpi(CM_ASL_CAMERA) == 0) - set_acpi(CM_ASL_CAMERA, 1); + if (get_acpi(eeepc, CM_ASL_CAMERA) == 0) + set_acpi(eeepc, CM_ASL_CAMERA, 1); } +static bool eeepc_device_present; + static int __devinit eeepc_acpi_add(struct acpi_device *device) { - struct device *dev; + struct eeepc_laptop *eeepc; int result; pr_notice(EEEPC_LAPTOP_NAME "\n"); @@ -1271,53 +1328,64 @@ static int __devinit eeepc_acpi_add(struct acpi_device *device) strcpy(acpi_device_name(device), EEEPC_ACPI_DEVICE_NAME); strcpy(acpi_device_class(device), EEEPC_ACPI_CLASS); device->driver_data = eeepc; - eeepc->device = device; - result = eeepc_acpi_init(); + result = eeepc_acpi_init(eeepc, device); if (result) goto fail_platform; - eeepc_enable_camera(); + eeepc_enable_camera(eeepc); - result = eeepc_platform_init(); + /* + * Register the platform device first. It is used as a parent for the + * sub-devices below. + * + * Note that if there are multiple instances of this ACPI device it + * will bail out, because the platform device is registered with a + * fixed name. Of course it doesn't make sense to have more than one, + * and machine-specific scripts find the fixed name convenient. But + * It's also good for us to exclude multiple instances because both + * our hwmon and our wlan rfkill subdevice use global ACPI objects + * (the EC and the wlan PCI slot respectively). + */ + result = eeepc_platform_init(eeepc); if (result) goto fail_platform; - dev = &platform_device->dev; if (!acpi_video_backlight_support()) { - result = eeepc_backlight_init(dev); + result = eeepc_backlight_init(eeepc); if (result) goto fail_backlight; } else pr_info("Backlight controlled by ACPI video driver\n"); - result = eeepc_input_init(dev); + result = eeepc_input_init(eeepc); if (result) goto fail_input; - result = eeepc_hwmon_init(dev); + result = eeepc_hwmon_init(eeepc); if (result) goto fail_hwmon; - result = eeepc_led_init(dev); + result = eeepc_led_init(eeepc); if (result) goto fail_led; - result = eeepc_rfkill_init(dev); + result = eeepc_rfkill_init(eeepc); if (result) goto fail_rfkill; + eeepc_device_present = true; return 0; fail_rfkill: - eeepc_led_exit(); + eeepc_led_exit(eeepc); fail_led: - eeepc_hwmon_exit(); + eeepc_hwmon_exit(eeepc); fail_hwmon: - eeepc_input_exit(); + eeepc_input_exit(eeepc); fail_input: - eeepc_backlight_exit(); + eeepc_backlight_exit(eeepc); fail_backlight: - eeepc_platform_exit(); + eeepc_platform_exit(eeepc); fail_platform: kfree(eeepc); @@ -1326,12 +1394,14 @@ fail_platform: static int eeepc_acpi_remove(struct acpi_device *device, int type) { - eeepc_backlight_exit(); - eeepc_rfkill_exit(); - eeepc_input_exit(); - eeepc_hwmon_exit(); - eeepc_led_exit(); - eeepc_platform_exit(); + struct eeepc_laptop *eeepc = acpi_driver_data(device); + + eeepc_backlight_exit(eeepc); + eeepc_rfkill_exit(eeepc); + eeepc_input_exit(eeepc); + eeepc_hwmon_exit(eeepc); + eeepc_led_exit(eeepc); + eeepc_platform_exit(eeepc); kfree(eeepc); return 0; @@ -1369,7 +1439,7 @@ static int __init eeepc_laptop_init(void) result = acpi_bus_register_driver(&eeepc_acpi_driver); if (result < 0) goto fail_acpi_driver; - if (!eeepc) { + if (!eeepc_device_present) { result = -ENODEV; goto fail_no_device; } -- cgit v1.2.3 From 16851f92a5998bf8880a7401898ecfe351913854 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Thu, 3 Dec 2009 07:45:10 +0000 Subject: asus-laptop: use KEY_F13 to map "Disable Touchpad" event The same key is used in toshiba-laptop, and there is no reserved key for that. Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/asus-laptop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 6c05172bf3d3..e931e8004233 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -313,7 +313,7 @@ static struct key_entry asus_keymap[] = { {KE_KEY, 0x5F, KEY_WLAN}, {KE_KEY, 0x60, KEY_SWITCHVIDEOMODE}, {KE_KEY, 0x61, KEY_SWITCHVIDEOMODE}, - {KE_KEY, 0x6B, BTN_TOUCH}, /* Lock Mouse */ + {KE_KEY, 0x6B, KEY_F13}, /* Lock Touchpad */ {KE_KEY, 0x82, KEY_CAMERA}, {KE_KEY, 0x8A, KEY_PROG1}, {KE_KEY, 0x95, KEY_MEDIA}, -- cgit v1.2.3 From 14f8af311e7d3e4198cbaade84a34f86505dcb37 Mon Sep 17 00:00:00 2001 From: Ike Panhc Date: Thu, 3 Dec 2009 07:45:11 +0000 Subject: asus-laptop: add Lenovo SL hotkey support Lenovo SL series laptop has a very similar DSDT with Asus laptops. We can easily have the extra ACPI function support with little modification in asus-laptop.c Here is the hotkey enablement for Lenovo SL series laptop. This patch will enable the following hotkey: - Volumn Up - Volumn Down - Mute - Screen Lock (Fn+F2) - Battery Status (Fn+F3) - WLAN switch (Fn+F5) - Video output switch (Fn+F7) - Touchpad switch (Fn+F8) - Screen Magnifier (Fn+Space) The following function of Lenovo SL laptop is still need to be enabled: - Hotkey: KEY_SUSPEND (Fn+F4), KEY_SLEEP (Fn+F12), Dock Eject (Fn+F9) - Rfkill for bluetooth and wlan - LenovoCare LED - Hwmon for fan speed - Fingerprint scanner - Active Protection System Signed-off-by: Ike Panhc Signed-off-by: Len Brown --- drivers/platform/x86/asus-laptop.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index e931e8004233..83948dff2419 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -221,6 +221,7 @@ static struct asus_hotk *hotk; */ static const struct acpi_device_id asus_device_ids[] = { {"ATK0100", 0}, + {"ATK0101", 0}, {"", 0}, }; MODULE_DEVICE_TABLE(acpi, asus_device_ids); @@ -294,6 +295,11 @@ struct key_entry { enum { KE_KEY, KE_END }; static struct key_entry asus_keymap[] = { + {KE_KEY, 0x02, KEY_SCREENLOCK}, + {KE_KEY, 0x05, KEY_WLAN}, + {KE_KEY, 0x08, KEY_F13}, + {KE_KEY, 0x17, KEY_ZOOM}, + {KE_KEY, 0x1f, KEY_BATTERY}, {KE_KEY, 0x30, KEY_VOLUMEUP}, {KE_KEY, 0x31, KEY_VOLUMEDOWN}, {KE_KEY, 0x32, KEY_MUTE}, @@ -313,6 +319,8 @@ static struct key_entry asus_keymap[] = { {KE_KEY, 0x5F, KEY_WLAN}, {KE_KEY, 0x60, KEY_SWITCHVIDEOMODE}, {KE_KEY, 0x61, KEY_SWITCHVIDEOMODE}, + {KE_KEY, 0x62, KEY_SWITCHVIDEOMODE}, + {KE_KEY, 0x63, KEY_SWITCHVIDEOMODE}, {KE_KEY, 0x6B, KEY_F13}, /* Lock Touchpad */ {KE_KEY, 0x82, KEY_CAMERA}, {KE_KEY, 0x8A, KEY_PROG1}, -- cgit v1.2.3 From 1f0233eee9b385d78fda78626136c43e045082f7 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Thu, 3 Dec 2009 07:45:12 +0000 Subject: asus-laptop: Add wlan switch found on V6V Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/asus-laptop.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 83948dff2419..3348cc6731d9 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -323,6 +323,7 @@ static struct key_entry asus_keymap[] = { {KE_KEY, 0x63, KEY_SWITCHVIDEOMODE}, {KE_KEY, 0x6B, KEY_F13}, /* Lock Touchpad */ {KE_KEY, 0x82, KEY_CAMERA}, + {KE_KEY, 0x88, KEY_WLAN }, {KE_KEY, 0x8A, KEY_PROG1}, {KE_KEY, 0x95, KEY_MEDIA}, {KE_KEY, 0x99, KEY_PHONE}, -- cgit v1.2.3 From b39b85e74acfd62a22afc33a88a7bda36beb3367 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Thu, 3 Dec 2009 07:45:13 +0000 Subject: eeepc-laptop: map keys found on newer eeepc Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 935ec4404f08..920d9d9f1f9c 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -136,6 +136,7 @@ static const struct key_entry eeepc_keymap[] = { {KE_KEY, 0x13, KEY_MUTE }, {KE_KEY, 0x14, KEY_VOLUMEDOWN }, {KE_KEY, 0x15, KEY_VOLUMEUP }, + {KE_KEY, 0x16, KEY_DISPLAY_OFF }, {KE_KEY, 0x1a, KEY_COFFEE }, {KE_KEY, 0x1b, KEY_ZOOM }, {KE_KEY, 0x1c, KEY_PROG2 }, @@ -145,6 +146,8 @@ static const struct key_entry eeepc_keymap[] = { {KE_KEY, 0x30, KEY_SWITCHVIDEOMODE }, {KE_KEY, 0x31, KEY_SWITCHVIDEOMODE }, {KE_KEY, 0x32, KEY_SWITCHVIDEOMODE }, + {KE_KEY, 0x37, KEY_F13 }, /* Disable Touchpad */ + {KE_KEY, 0x38, KEY_F14 }, {KE_END, 0}, }; -- cgit v1.2.3 From f90be874303eddc53c199083a37bc44d65ab8351 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Thu, 3 Dec 2009 07:45:14 +0000 Subject: eeepc-laptop: fix coding style fix styles problems introduced by commit e86bda235a08b6a8e64c1e8bb9d175f6961554e3 Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 920d9d9f1f9c..5f0eb767e8a6 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -244,7 +244,8 @@ static int get_acpi(struct eeepc_laptop *eeepc, int cm) return value; } -static int acpi_setter_handle(struct eeepc_laptop *eeepc, int cm, acpi_handle *handle) +static int acpi_setter_handle(struct eeepc_laptop *eeepc, int cm, + acpi_handle *handle) { const char *method = cm_setv[cm]; acpi_status status; @@ -255,7 +256,7 @@ static int acpi_setter_handle(struct eeepc_laptop *eeepc, int cm, acpi_handle *h return -ENODEV; status = acpi_get_handle(eeepc->handle, (char *)method, - handle); + handle); if (status != AE_OK) { pr_warning("Error finding %s\n", method); return -ENODEV; @@ -1274,7 +1275,8 @@ static void cmsg_quirks(struct eeepc_laptop *eeepc) cmsg_quirk(eeepc, CM_ASL_TPD, "TPD"); } -static int eeepc_acpi_init(struct eeepc_laptop *eeepc, struct acpi_device *device) +static int eeepc_acpi_init(struct eeepc_laptop *eeepc, + struct acpi_device *device) { unsigned int init_flags; int result; -- cgit v1.2.3 From 325fb8e9aeddf7bf8a7a892869dca00e7305c41e Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Thu, 3 Dec 2009 07:45:15 +0000 Subject: eeepc-laptop: re-add check for eeepc->backlight == NULL As Corentin points out, we do not create a backlight device if the ACPI video driver is able to provide equivalent functionality. So we do need to check before we try to update the backlight device. We now ignore brightness events completely if we have not created a backlight device. This is slightly more cautious than the original check. Signed-off-by: Alan Jenkins Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 42 ++++++++++++++++++++++--------------- 1 file changed, 25 insertions(+), 17 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 5f0eb767e8a6..d07a4c0ec7e9 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -1230,27 +1230,35 @@ static void eeepc_acpi_notify(struct acpi_device *device, u32 event) dev_name(&device->dev), event, count); + /* Brightness events are special */ if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) { - int old_brightness, new_brightness; - /* Update backlight device. */ - old_brightness = eeepc_backlight_notify(eeepc); - - /* Convert brightness event to keypress (obsolescent hack). */ - new_brightness = event - NOTIFY_BRN_MIN; - - if (new_brightness < old_brightness) { - event = NOTIFY_BRN_MIN; /* brightness down */ - } else if (new_brightness > old_brightness) { - event = NOTIFY_BRN_MAX; /* brightness up */ - } else { - /* - * no change in brightness - already at min/max, - * event will be desired value (or else ignored). - */ + /* Ignore them completely if the acpi video driver is used */ + if (eeepc->backlight_device != NULL) { + int old_brightness, new_brightness; + + /* Update the backlight device. */ + old_brightness = eeepc_backlight_notify(eeepc); + + /* Convert event to keypress (obsolescent hack) */ + new_brightness = event - NOTIFY_BRN_MIN; + + if (new_brightness < old_brightness) { + event = NOTIFY_BRN_MIN; /* brightness down */ + } else if (new_brightness > old_brightness) { + event = NOTIFY_BRN_MAX; /* brightness up */ + } else { + /* + * no change in brightness - already at min/max, + * event will be desired value (or else ignored) + */ + } + eeepc_input_notify(eeepc, event); } + } else { + /* Everything else is a bona-fide keypress event */ + eeepc_input_notify(eeepc, event); } - eeepc_input_notify(eeepc, event); } static void cmsg_quirk(struct eeepc_laptop *eeepc, int cm, const char *name) -- cgit v1.2.3 From e5fbba85a7acc2626d4fe14501816811d702f3e9 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Tue, 21 Jul 2009 12:14:01 +0100 Subject: hp-wmi: improve rfkill support 1) Add support for reading the hardware blocked state. Previously we read a combination of the hardware and software blocked states, reporting it as the software blocked state. This caused some confusing behaviour. 2) The software state is persistent, mark it as such. 3) Check rfkill in the resume handler. Both the hard and soft blocked states may change over hibernation. Signed-off-by: Alan Jenkins Acked-by: Matthew Garrett Tested-by: Maciej Rutecki Signed-off-by: Len Brown --- drivers/platform/x86/hp-wmi.c | 139 +++++++++++++++++++++++++----------------- 1 file changed, 84 insertions(+), 55 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index c2842171cec6..804cfdb88286 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -51,6 +51,12 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4"); #define HPWMI_WIRELESS_QUERY 0x5 #define HPWMI_HOTKEY_QUERY 0xc +enum hp_wmi_radio { + HPWMI_WIFI = 0, + HPWMI_BLUETOOTH = 1, + HPWMI_WWAN = 2, +}; + static int __init hp_wmi_bios_setup(struct platform_device *device); static int __exit hp_wmi_bios_remove(struct platform_device *device); static int hp_wmi_resume_handler(struct device *device); @@ -175,8 +181,8 @@ static int hp_wmi_tablet_state(void) static int hp_wmi_set_block(void *data, bool blocked) { - unsigned long b = (unsigned long) data; - int query = BIT(b + 8) | ((!blocked) << b); + enum hp_wmi_radio r = (enum hp_wmi_radio) data; + int query = BIT(r + 8) | ((!blocked) << r); return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, query); } @@ -185,31 +191,23 @@ static const struct rfkill_ops hp_wmi_rfkill_ops = { .set_block = hp_wmi_set_block, }; -static bool hp_wmi_wifi_state(void) -{ - int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0); - - if (wireless & 0x100) - return false; - else - return true; -} - -static bool hp_wmi_bluetooth_state(void) +static bool hp_wmi_get_sw_state(enum hp_wmi_radio r) { int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0); + int mask = 0x200 << (r * 8); - if (wireless & 0x10000) + if (wireless & mask) return false; else return true; } -static bool hp_wmi_wwan_state(void) +static bool hp_wmi_get_hw_state(enum hp_wmi_radio r) { int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0); + int mask = 0x800 << (r * 8); - if (wireless & 0x1000000) + if (wireless & mask) return false; else return true; @@ -334,49 +332,55 @@ static void hp_wmi_notify(u32 value, void *context) struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; static struct key_entry *key; union acpi_object *obj; + int eventcode; wmi_get_event_data(value, &response); obj = (union acpi_object *)response.pointer; - if (obj && obj->type == ACPI_TYPE_BUFFER && obj->buffer.length == 8) { - int eventcode = *((u8 *) obj->buffer.pointer); - if (eventcode == 0x4) - eventcode = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0, - 0); - key = hp_wmi_get_entry_by_scancode(eventcode); - if (key) { - switch (key->type) { - case KE_KEY: - input_report_key(hp_wmi_input_dev, - key->keycode, 1); - input_sync(hp_wmi_input_dev); - input_report_key(hp_wmi_input_dev, - key->keycode, 0); - input_sync(hp_wmi_input_dev); - break; - } - } else if (eventcode == 0x1) { - input_report_switch(hp_wmi_input_dev, SW_DOCK, - hp_wmi_dock_state()); - input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, - hp_wmi_tablet_state()); + if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) { + printk(KERN_INFO "HP WMI: Unknown response received\n"); + return; + } + + eventcode = *((u8 *) obj->buffer.pointer); + if (eventcode == 0x4) + eventcode = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0, + 0); + key = hp_wmi_get_entry_by_scancode(eventcode); + if (key) { + switch (key->type) { + case KE_KEY: + input_report_key(hp_wmi_input_dev, + key->keycode, 1); + input_sync(hp_wmi_input_dev); + input_report_key(hp_wmi_input_dev, + key->keycode, 0); input_sync(hp_wmi_input_dev); - } else if (eventcode == 0x5) { - if (wifi_rfkill) - rfkill_set_sw_state(wifi_rfkill, - hp_wmi_wifi_state()); - if (bluetooth_rfkill) - rfkill_set_sw_state(bluetooth_rfkill, - hp_wmi_bluetooth_state()); - if (wwan_rfkill) - rfkill_set_sw_state(wwan_rfkill, - hp_wmi_wwan_state()); - } else - printk(KERN_INFO "HP WMI: Unknown key pressed - %x\n", - eventcode); + break; + } + } else if (eventcode == 0x1) { + input_report_switch(hp_wmi_input_dev, SW_DOCK, + hp_wmi_dock_state()); + input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, + hp_wmi_tablet_state()); + input_sync(hp_wmi_input_dev); + } else if (eventcode == 0x5) { + if (wifi_rfkill) + rfkill_set_states(wifi_rfkill, + hp_wmi_get_sw_state(HPWMI_WIFI), + hp_wmi_get_hw_state(HPWMI_WIFI)); + if (bluetooth_rfkill) + rfkill_set_states(bluetooth_rfkill, + hp_wmi_get_sw_state(HPWMI_BLUETOOTH), + hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); + if (wwan_rfkill) + rfkill_set_states(wwan_rfkill, + hp_wmi_get_sw_state(HPWMI_WWAN), + hp_wmi_get_hw_state(HPWMI_WWAN)); } else - printk(KERN_INFO "HP WMI: Unknown response received\n"); + printk(KERN_INFO "HP WMI: Unknown key pressed - %x\n", + eventcode); } static int __init hp_wmi_input_setup(void) @@ -455,7 +459,11 @@ static int __init hp_wmi_bios_setup(struct platform_device *device) wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev, RFKILL_TYPE_WLAN, &hp_wmi_rfkill_ops, - (void *) 0); + (void *) HPWMI_WIFI); + rfkill_init_sw_state(wifi_rfkill, + hp_wmi_get_sw_state(HPWMI_WIFI)); + rfkill_set_hw_state(wifi_rfkill, + hp_wmi_get_hw_state(HPWMI_WIFI)); err = rfkill_register(wifi_rfkill); if (err) goto register_wifi_error; @@ -465,7 +473,11 @@ static int __init hp_wmi_bios_setup(struct platform_device *device) bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev, RFKILL_TYPE_BLUETOOTH, &hp_wmi_rfkill_ops, - (void *) 1); + (void *) HPWMI_BLUETOOTH); + rfkill_init_sw_state(bluetooth_rfkill, + hp_wmi_get_sw_state(HPWMI_BLUETOOTH)); + rfkill_set_hw_state(bluetooth_rfkill, + hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); err = rfkill_register(bluetooth_rfkill); if (err) goto register_bluetooth_error; @@ -475,7 +487,11 @@ static int __init hp_wmi_bios_setup(struct platform_device *device) wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev, RFKILL_TYPE_WWAN, &hp_wmi_rfkill_ops, - (void *) 2); + (void *) HPWMI_WWAN); + rfkill_init_sw_state(wwan_rfkill, + hp_wmi_get_sw_state(HPWMI_WWAN)); + rfkill_set_hw_state(wwan_rfkill, + hp_wmi_get_hw_state(HPWMI_WWAN)); err = rfkill_register(wwan_rfkill); if (err) goto register_wwan_err; @@ -533,6 +549,19 @@ static int hp_wmi_resume_handler(struct device *device) input_sync(hp_wmi_input_dev); } + if (wifi_rfkill) + rfkill_set_states(wifi_rfkill, + hp_wmi_get_sw_state(HPWMI_WIFI), + hp_wmi_get_hw_state(HPWMI_WIFI)); + if (bluetooth_rfkill) + rfkill_set_states(bluetooth_rfkill, + hp_wmi_get_sw_state(HPWMI_BLUETOOTH), + hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); + if (wwan_rfkill) + rfkill_set_states(wwan_rfkill, + hp_wmi_get_sw_state(HPWMI_WWAN), + hp_wmi_get_hw_state(HPWMI_WWAN)); + return 0; } -- cgit v1.2.3 From e1fbf346c7c56d6b2f9d835d297bcb088baaff3a Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Fri, 31 Jul 2009 03:25:38 +0100 Subject: dell-laptop: Fix rfkill state queries The current code in dell-laptop is confused about the hardware rfkill state. Fix it up such that it's always reported correctly. Signed-off-by: Matthew Garrett Tested-by: Tim Gardner Signed-off-by: Len Brown --- drivers/platform/x86/dell-laptop.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index 74909c4aaeea..906111152b03 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -197,8 +197,8 @@ static void dell_rfkill_query(struct rfkill *rfkill, void *data) dell_send_request(&buffer, 17, 11); status = buffer.output[1]; - if (status & BIT(bit)) - rfkill_set_hw_state(rfkill, !!(status & BIT(16))); + rfkill_set_sw_state(rfkill, !!(status & BIT(bit))); + rfkill_set_hw_state(rfkill, !(status & BIT(16))); } static const struct rfkill_ops dell_rfkill_ops = { -- cgit v1.2.3 From 71e9dc73cb6b1351bdd5f732cef5dbef411b3219 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 19 Aug 2009 15:06:47 +0100 Subject: dell-laptop: fix a use-after-free error on the failure path dell_setup_rfkill() already cleans up the rfkill devices on failure. So if it returns an error, we should not try to unregister the rfkill devices. Signed-off-by: Alan Jenkins Acked-by: Matthew Garrett Signed-off-by: Len Brown --- drivers/platform/x86/dell-laptop.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index 906111152b03..d791ef93c1f0 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -330,7 +330,7 @@ static int __init dell_init(void) if (ret) { printk(KERN_WARNING "dell-laptop: Unable to setup rfkill\n"); - goto out; + goto fail_rfkill; } #ifdef CONFIG_ACPI @@ -358,7 +358,7 @@ static int __init dell_init(void) if (IS_ERR(dell_backlight_device)) { ret = PTR_ERR(dell_backlight_device); dell_backlight_device = NULL; - goto out; + goto fail_backlight; } dell_backlight_device->props.max_brightness = max_intensity; @@ -368,13 +368,15 @@ static int __init dell_init(void) } return 0; -out: + +fail_backlight: if (wifi_rfkill) rfkill_unregister(wifi_rfkill); if (bluetooth_rfkill) rfkill_unregister(bluetooth_rfkill); if (wwan_rfkill) rfkill_unregister(wwan_rfkill); +fail_rfkill: kfree(da_tokens); return ret; } -- cgit v1.2.3 From 4311bb230e0f7e4daa5fd5bc0cc536e2bd1eff20 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 19 Aug 2009 15:06:48 +0100 Subject: dell-laptop: fix rfkill memory leak on unload and failure paths rfkill_unregister() should always be followed by rfkill_destroy(). Signed-off-by: Alan Jenkins Acked-by: Matthew Garrett Signed-off-by: Len Brown --- drivers/platform/x86/dell-laptop.c | 30 ++++++++++++++++++------------ 1 file changed, 18 insertions(+), 12 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index d791ef93c1f0..94139d530c75 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -268,6 +268,22 @@ err_wifi: return ret; } +static void dell_cleanup_rfkill(void) +{ + if (wifi_rfkill) { + rfkill_unregister(wifi_rfkill); + rfkill_destroy(wifi_rfkill); + } + if (bluetooth_rfkill) { + rfkill_unregister(bluetooth_rfkill); + rfkill_destroy(bluetooth_rfkill); + } + if (wwan_rfkill) { + rfkill_unregister(wwan_rfkill); + rfkill_destroy(wwan_rfkill); + } +} + static int dell_send_intensity(struct backlight_device *bd) { struct calling_interface_buffer buffer; @@ -370,12 +386,7 @@ static int __init dell_init(void) return 0; fail_backlight: - if (wifi_rfkill) - rfkill_unregister(wifi_rfkill); - if (bluetooth_rfkill) - rfkill_unregister(bluetooth_rfkill); - if (wwan_rfkill) - rfkill_unregister(wwan_rfkill); + dell_cleanup_rfkill(); fail_rfkill: kfree(da_tokens); return ret; @@ -384,12 +395,7 @@ fail_rfkill: static void __exit dell_exit(void) { backlight_device_unregister(dell_backlight_device); - if (wifi_rfkill) - rfkill_unregister(wifi_rfkill); - if (bluetooth_rfkill) - rfkill_unregister(bluetooth_rfkill); - if (wwan_rfkill) - rfkill_unregister(wwan_rfkill); + dell_cleanup_rfkill(); } module_init(dell_init); -- cgit v1.2.3 From ada3248a5d38654b33b0ae2eabe1d7e3d9a9ffce Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 19 Aug 2009 15:06:49 +0100 Subject: dell-laptop: create a platform device as a parent for the rfkill devices etc. dell-laptop may not need to export any sysfs files, but it should still create a platform device as a parent for the rfkill and backlight devices. Otherwise sysfs will display these as "virtual" devices, with no connection to either physical hardware or the dell-laptop module. Apparently this is useful for hardware detection. Signed-off-by: Alan Jenkins Acked-by: Matthew Garrett Signed-off-by: Len Brown --- drivers/platform/x86/dell-laptop.c | 38 ++++++++++++++++++++++++++++++++++---- 1 file changed, 34 insertions(+), 4 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index 94139d530c75..a4ce64244f65 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -58,6 +58,14 @@ static int da_command_code; static int da_num_tokens; static struct calling_interface_token *da_tokens; +static struct platform_driver platform_driver = { + .driver = { + .name = "dell-laptop", + .owner = THIS_MODULE, + } +}; + +static struct platform_device *platform_device; static struct backlight_device *dell_backlight_device; static struct rfkill *wifi_rfkill; static struct rfkill *bluetooth_rfkill; @@ -217,7 +225,8 @@ static int dell_setup_rfkill(void) status = buffer.output[1]; if ((status & (1<<2|1<<8)) == (1<<2|1<<8)) { - wifi_rfkill = rfkill_alloc("dell-wifi", NULL, RFKILL_TYPE_WLAN, + wifi_rfkill = rfkill_alloc("dell-wifi", &platform_device->dev, + RFKILL_TYPE_WLAN, &dell_rfkill_ops, (void *) 1); if (!wifi_rfkill) { ret = -ENOMEM; @@ -229,7 +238,8 @@ static int dell_setup_rfkill(void) } if ((status & (1<<3|1<<9)) == (1<<3|1<<9)) { - bluetooth_rfkill = rfkill_alloc("dell-bluetooth", NULL, + bluetooth_rfkill = rfkill_alloc("dell-bluetooth", + &platform_device->dev, RFKILL_TYPE_BLUETOOTH, &dell_rfkill_ops, (void *) 2); if (!bluetooth_rfkill) { @@ -242,7 +252,9 @@ static int dell_setup_rfkill(void) } if ((status & (1<<4|1<<10)) == (1<<4|1<<10)) { - wwan_rfkill = rfkill_alloc("dell-wwan", NULL, RFKILL_TYPE_WWAN, + wwan_rfkill = rfkill_alloc("dell-wwan", + &platform_device->dev, + RFKILL_TYPE_WWAN, &dell_rfkill_ops, (void *) 3); if (!wwan_rfkill) { ret = -ENOMEM; @@ -342,6 +354,18 @@ static int __init dell_init(void) return -ENODEV; } + ret = platform_driver_register(&platform_driver); + if (ret) + goto fail_platform_driver; + platform_device = platform_device_alloc("dell-laptop", -1); + if (!platform_device) { + ret = -ENOMEM; + goto fail_platform_device1; + } + ret = platform_device_add(platform_device); + if (ret) + goto fail_platform_device2; + ret = dell_setup_rfkill(); if (ret) { @@ -368,7 +392,7 @@ static int __init dell_init(void) if (max_intensity) { dell_backlight_device = backlight_device_register( "dell_backlight", - NULL, NULL, + &platform_device->dev, NULL, &dell_ops); if (IS_ERR(dell_backlight_device)) { @@ -388,6 +412,12 @@ static int __init dell_init(void) fail_backlight: dell_cleanup_rfkill(); fail_rfkill: + platform_device_del(platform_device); +fail_platform_device2: + platform_device_put(platform_device); +fail_platform_device1: + platform_driver_unregister(&platform_driver); +fail_platform_driver: kfree(da_tokens); return ret; } -- cgit v1.2.3 From 4788df4cf44fd14847d37f88daea649f01c01017 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 19 Aug 2009 15:06:50 +0100 Subject: dell-laptop: add __init to init functions Signed-off-by: Alan Jenkins Acked-by: Matthew Garrett Signed-off-by: Len Brown --- drivers/platform/x86/dell-laptop.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index a4ce64244f65..3780994dc8f2 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -82,7 +82,7 @@ static const struct dmi_system_id __initdata dell_device_table[] = { { } }; -static void parse_da_table(const struct dmi_header *dm) +static void __init parse_da_table(const struct dmi_header *dm) { /* Final token is a terminator, so we don't want to copy it */ int tokens = (dm->length-11)/sizeof(struct calling_interface_token)-1; @@ -111,7 +111,7 @@ static void parse_da_table(const struct dmi_header *dm) da_num_tokens += tokens; } -static void find_tokens(const struct dmi_header *dm, void *dummy) +static void __init find_tokens(const struct dmi_header *dm, void *dummy) { switch (dm->type) { case 0xd4: /* Indexed IO */ @@ -214,7 +214,7 @@ static const struct rfkill_ops dell_rfkill_ops = { .query = dell_rfkill_query, }; -static int dell_setup_rfkill(void) +static int __init dell_setup_rfkill(void) { struct calling_interface_buffer buffer; int status; -- cgit v1.2.3 From 5ea2559726b786283236835dc2905c23b36ac91c Mon Sep 17 00:00:00 2001 From: Rezwanul Kabir Date: Mon, 2 Nov 2009 12:00:42 -0500 Subject: dell-wmi: Add support for new Dell systems Newer Dell systems support HotKey features differently from legacy systems. A new vendor specifc HotKey SMBIOS table (Type 0xB2) is defined. This table contains a mapping between scancode and the corresponding predefined keyfunction ( i.e. keycode).. Also, a new ACPI-WMI event type (called KeyIDList) with a value of 0x0010 is defined. Any BIOS containing 0xB2 table will send hotkey notifications using KeyIDList event. This is Rezwanul's patch, updated to ensure that brightness events are not sent if the backlight is controlled via ACPI and with the default keycode for the display output switching altered to match desktop expectations. Signed-off-by: Rezwanul Kabir Signed-off-by: Matthew Garrett Signed-off-by: Len Brown --- drivers/platform/x86/dell-wmi.c | 129 ++++++++++++++++++++++++++++++++++++---- 1 file changed, 116 insertions(+), 13 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c index 0f900cc9fa7a..67f3fe71c509 100644 --- a/drivers/platform/x86/dell-wmi.c +++ b/drivers/platform/x86/dell-wmi.c @@ -31,6 +31,7 @@ #include #include #include +#include MODULE_AUTHOR("Matthew Garrett "); MODULE_DESCRIPTION("Dell laptop WMI hotkeys driver"); @@ -38,6 +39,8 @@ MODULE_LICENSE("GPL"); #define DELL_EVENT_GUID "9DBB5994-A997-11DA-B012-B622A1EF5492" +static int acpi_video; + MODULE_ALIAS("wmi:"DELL_EVENT_GUID); struct key_entry { @@ -54,7 +57,7 @@ enum { KE_KEY, KE_SW, KE_IGNORE, KE_END }; * via the keyboard controller so should not be sent again. */ -static struct key_entry dell_wmi_keymap[] = { +static struct key_entry dell_legacy_wmi_keymap[] = { {KE_KEY, 0xe045, KEY_PROG1}, {KE_KEY, 0xe009, KEY_EJECTCD}, @@ -72,7 +75,7 @@ static struct key_entry dell_wmi_keymap[] = { /* The next device is at offset 6, the active devices are at offset 8 and the attached devices at offset 10 */ - {KE_KEY, 0xe00b, KEY_DISPLAYTOGGLE}, + {KE_KEY, 0xe00b, KEY_SWITCHVIDEOMODE}, {KE_IGNORE, 0xe00c, KEY_KBDILLUMTOGGLE}, @@ -96,6 +99,47 @@ static struct key_entry dell_wmi_keymap[] = { {KE_END, 0} }; +static bool dell_new_hk_type; + +struct dell_new_keymap_entry { + u16 scancode; + u16 keycode; +}; + +struct dell_hotkey_table { + struct dmi_header header; + struct dell_new_keymap_entry keymap[]; + +}; + +static struct key_entry *dell_new_wmi_keymap; + +static u16 bios_to_linux_keycode[256] = { + + KEY_MEDIA, KEY_NEXTSONG, KEY_PLAYPAUSE, KEY_PREVIOUSSONG, + KEY_STOPCD, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, + KEY_WWW, KEY_UNKNOWN, KEY_VOLUMEDOWN, KEY_MUTE, + KEY_VOLUMEUP, KEY_UNKNOWN, KEY_BATTERY, KEY_EJECTCD, + KEY_UNKNOWN, KEY_SLEEP, KEY_PROG1, KEY_BRIGHTNESSDOWN, + KEY_BRIGHTNESSUP, KEY_UNKNOWN, KEY_KBDILLUMTOGGLE, + KEY_UNKNOWN, KEY_SWITCHVIDEOMODE, KEY_UNKNOWN, KEY_UNKNOWN, + KEY_SWITCHVIDEOMODE, KEY_UNKNOWN, KEY_UNKNOWN, KEY_PROG2, + KEY_UNKNOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + KEY_PROG3 +}; + + +static struct key_entry *dell_wmi_keymap = dell_legacy_wmi_keymap; + static struct input_dev *dell_wmi_input_dev; static struct key_entry *dell_wmi_get_entry_by_scancode(int code) @@ -164,24 +208,78 @@ static void dell_wmi_notify(u32 value, void *context) obj = (union acpi_object *)response.pointer; if (obj && obj->type == ACPI_TYPE_BUFFER) { - int *buffer = (int *)obj->buffer.pointer; - /* - * The upper bytes of the event may contain - * additional information, so mask them off for the - * scancode lookup - */ - key = dell_wmi_get_entry_by_scancode(buffer[1] & 0xFFFF); - if (key) { + int reported_key; + u16 *buffer_entry = (u16 *)obj->buffer.pointer; + if (dell_new_hk_type && (buffer_entry[1] != 0x10)) { + printk(KERN_INFO "dell-wmi: Received unknown WMI event" + " (0x%x)\n", buffer_entry[1]); + return; + } + + if (dell_new_hk_type) + reported_key = (int)buffer_entry[2]; + else + reported_key = (int)buffer_entry[1] & 0xffff; + + key = dell_wmi_get_entry_by_scancode(reported_key); + + if (!key) { + printk(KERN_INFO "dell-wmi: Unknown key %x pressed\n", + reported_key); + } else if ((key->keycode == KEY_BRIGHTNESSUP || + key->keycode == KEY_BRIGHTNESSDOWN) && acpi_video) { + /* Don't report brightness notifications that will also + * come via ACPI */ + return; + } else { input_report_key(dell_wmi_input_dev, key->keycode, 1); input_sync(dell_wmi_input_dev); input_report_key(dell_wmi_input_dev, key->keycode, 0); input_sync(dell_wmi_input_dev); - } else if (buffer[1] & 0xFFFF) - printk(KERN_INFO "dell-wmi: Unknown key %x pressed\n", - buffer[1] & 0xFFFF); + } } } + +static void setup_new_hk_map(const struct dmi_header *dm) +{ + + int i; + int hotkey_num = (dm->length-4)/sizeof(struct dell_new_keymap_entry); + struct dell_hotkey_table *table = + container_of(dm, struct dell_hotkey_table, header); + + dell_new_wmi_keymap = kzalloc((hotkey_num+1) * + sizeof(struct key_entry), GFP_KERNEL); + + for (i = 0; i < hotkey_num; i++) { + dell_new_wmi_keymap[i].type = KE_KEY; + dell_new_wmi_keymap[i].code = table->keymap[i].scancode; + dell_new_wmi_keymap[i].keycode = + (table->keymap[i].keycode > 255) ? 0 : + bios_to_linux_keycode[table->keymap[i].keycode]; + } + + dell_new_wmi_keymap[i].type = KE_END; + dell_new_wmi_keymap[i].code = 0; + dell_new_wmi_keymap[i].keycode = 0; + + dell_wmi_keymap = dell_new_wmi_keymap; + +} + + +static void find_hk_type(const struct dmi_header *dm, void *dummy) +{ + + if ((dm->type == 0xb2) && (dm->length > 6)) { + dell_new_hk_type = true; + setup_new_hk_map(dm); + } + +} + + static int __init dell_wmi_input_setup(void) { struct key_entry *key; @@ -226,6 +324,9 @@ static int __init dell_wmi_init(void) int err; if (wmi_has_guid(DELL_EVENT_GUID)) { + + dmi_walk(find_hk_type, NULL); + err = dell_wmi_input_setup(); if (err) @@ -240,6 +341,8 @@ static int __init dell_wmi_init(void) return err; } + acpi_video = acpi_video_backlight_support(); + } else printk(KERN_WARNING "dell-wmi: No known WMI GUID found\n"); -- cgit v1.2.3 From d951d4cc84e8b5ddb8e0ab81cf6a72cc73fdd668 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Mon, 7 Dec 2009 22:05:50 +0100 Subject: asus-laptop: change light sens default values. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The light sensor disable brightness key and /sys/class/backlight/ control. There was a lot of report from users who didn't understand why they couldn't change their brightness, including: https://bugs.launchpad.net/bugs/222171 https://bugzilla.novell.com/show_bug.cgi?id=514747 http://bugzilla.kernel.org/show_bug.cgi?id=13671 http://bugzilla.kernel.org/show_bug.cgi?id=14432 Now the light sensor is disabled, and if the user want to enable it, the level should be ok. The funny thing is that comments where ok, not code. Cc: stable@kernel.org Cc: Thomas Renninger Cc: Peter Küppers Cc: Michael Franzl Cc: Ian Turner Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/asus-laptop.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 3348cc6731d9..61a1c7503658 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -1290,8 +1290,8 @@ static int asus_hotk_add(struct acpi_device *device) hotk->ledd_status = 0xFFF; /* Set initial values of light sensor and level */ - hotk->light_switch = 1; /* Default to light sensor disabled */ - hotk->light_level = 0; /* level 5 for sensor sensitivity */ + hotk->light_switch = 0; /* Default to light sensor disabled */ + hotk->light_level = 5; /* level 5 for sensor sensitivity */ if (ls_switch_handle) set_light_sens_switch(hotk->light_switch); -- cgit v1.2.3 From d89a727aff649f6768f7a34ee57f031ebf8bab4c Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Tue, 15 Dec 2009 21:51:06 -0200 Subject: thinkpad-acpi: sync input device EV_SW initial state Before we register the input device, sync the input layer EV_SW state through a call to input_report_switch(), to avoid issuing a gratuitous event for the initial state of these switches. This fixes some annoyances caused by the interaction with rfkill and EV_SW SW_RFKILL_ALL events. Reported-by: Kevin Locke Signed-off-by: Henrique de Moraes Holschuh Cc: Alan Jenkins Cc: Johannes Berg Cc: Dmitry Torokhov Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 53d6c3318069..3daf349ddc98 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -3186,6 +3186,8 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) int res, i; int status; int hkeyv; + bool radiosw_state = false; + bool tabletsw_state = false; unsigned long quirks; @@ -3291,6 +3293,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES if (dbg_wlswemul) { tp_features.hotkey_wlsw = 1; + radiosw_state = !!tpacpi_wlsw_emulstate; printk(TPACPI_INFO "radio switch emulation enabled\n"); } else @@ -3298,6 +3301,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) /* Not all thinkpads have a hardware radio switch */ if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { tp_features.hotkey_wlsw = 1; + radiosw_state = !!status; printk(TPACPI_INFO "radio switch found; radios are %s\n", enabled(status, 0)); @@ -3309,11 +3313,11 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) /* For X41t, X60t, X61t Tablets... */ if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { tp_features.hotkey_tablet = 1; + tabletsw_state = !!(status & TP_HOTKEY_TABLET_MASK); printk(TPACPI_INFO "possible tablet mode switch found; " "ThinkPad in %s mode\n", - (status & TP_HOTKEY_TABLET_MASK)? - "tablet" : "laptop"); + (tabletsw_state) ? "tablet" : "laptop"); res = add_to_attr_set(hotkey_dev_attributes, &dev_attr_hotkey_tablet_mode.attr); } @@ -3364,9 +3368,13 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) if (tp_features.hotkey_wlsw) { input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); + input_report_switch(tpacpi_inputdev, + SW_RFKILL_ALL, radiosw_state); } if (tp_features.hotkey_tablet) { input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); + input_report_switch(tpacpi_inputdev, + SW_TABLET_MODE, tabletsw_state); } /* Do not issue duplicate brightness change events to @@ -3433,8 +3441,6 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) tpacpi_inputdev->close = &hotkey_inputdev_close; hotkey_poll_setup_safe(true); - tpacpi_send_radiosw_update(); - tpacpi_input_send_tabletsw(); return 0; -- cgit v1.2.3 From 5451a923bbdcff6ae665947e120af7238b21a9d2 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Tue, 15 Dec 2009 21:51:07 -0200 Subject: thinkpad-acpi: log initial state of rfkill switches We already log the initial state of the hardware rfkill switch (WLSW), might as well log the state of the softswitches as well. Signed-off-by: Henrique de Moraes Holschuh Cc: Josip Rodin Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 3daf349ddc98..05714abf5a87 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -1264,6 +1264,7 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, struct tpacpi_rfk *atp_rfk; int res; bool sw_state = false; + bool hw_state; int sw_status; BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); @@ -1298,7 +1299,8 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, rfkill_init_sw_state(atp_rfk->rfkill, sw_state); } } - rfkill_set_hw_state(atp_rfk->rfkill, tpacpi_rfk_check_hwblock_state()); + hw_state = tpacpi_rfk_check_hwblock_state(); + rfkill_set_hw_state(atp_rfk->rfkill, hw_state); res = rfkill_register(atp_rfk->rfkill); if (res < 0) { @@ -1311,6 +1313,9 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, } tpacpi_rfkill_switches[id] = atp_rfk; + + printk(TPACPI_INFO "rfkill switch %s: radio is %sblocked\n", + name, (sw_state || hw_state) ? "" : "un"); return 0; } -- cgit v1.2.3 From 329e4e18dfdc552f36b0642a3de5ebfa96063666 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Tue, 15 Dec 2009 21:51:08 -0200 Subject: thinkpad-acpi: volume subdriver rewrite I don't trust the coupled EC writes and SMI calls the current volume control code does very much, although it is exactly what the IBM DSDTs seem to do (they never do more than a single step though). Change the driver to stop issuing SMIs, and just drive the EC directly to the desired level (DSDTs seem to confirm this will work even on very old models like the 570 and 600e/x). We checkpoint directly to NVRAM (this can be turned off) at suspend/shutdown/driver unload, which from what I can see in tbp, should also work on every ThinkPad. Signed-off-by: Henrique de Moraes Holschuh Cc: Lorne Applebaum Cc: Matthew Garrett Signed-off-by: Len Brown --- Documentation/laptops/thinkpad-acpi.txt | 22 ++- drivers/platform/x86/thinkpad_acpi.c | 340 ++++++++++++++++++++++++++------ 2 files changed, 299 insertions(+), 63 deletions(-) (limited to 'drivers/platform') diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt index f5056c7fb5be..96687d0106a9 100644 --- a/Documentation/laptops/thinkpad-acpi.txt +++ b/Documentation/laptops/thinkpad-acpi.txt @@ -1092,22 +1092,33 @@ WARNING: its level up and down at every change. -Volume control -- /proc/acpi/ibm/volume ---------------------------------------- +Volume control +-------------- + +procfs: /proc/acpi/ibm/volume -This feature allows volume control on ThinkPad models which don't have -a hardware volume knob. The available commands are: +This feature allows volume control on ThinkPad models with a digital +volume knob, as well as mute/unmute control. The available commands are: echo up >/proc/acpi/ibm/volume echo down >/proc/acpi/ibm/volume echo mute >/proc/acpi/ibm/volume echo 'level ' >/proc/acpi/ibm/volume -The number range is 0 to 15 although not all of them may be +The number range is 0 to 14 although not all of them may be distinct. The unmute the volume after the mute command, use either the up or down command (the level command will not unmute the volume). The current volume level and mute state is shown in the file. +There are two strategies for volume control. To select which one +should be used, use the volume_mode module parameter: volume_mode=1 +selects EC mode, and volume_mode=3 selects EC mode with NVRAM backing +(so that volume/mute changes are remembered across shutdown/reboot). + +The driver will operate in volume_mode=3 by default. If that does not +work well on your ThinkPad model, please report this to +ibm-acpi-devel@lists.sourceforge.net. + The ALSA mixer interface to this feature is still missing, but patches to add it exist. That problem should be addressed in the not so distant future. @@ -1376,6 +1387,7 @@ to enable more than one output class, just add their values. 0x0008 HKEY event interface, hotkeys 0x0010 Fan control 0x0020 Backlight brightness + 0x0040 Audio mixer/volume control There is also a kernel build option to enable more debugging information, which may be necessary to debug driver problems. diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 05714abf5a87..a2f5312c6a4e 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -231,6 +231,7 @@ enum tpacpi_hkey_event_t { #define TPACPI_DBG_HKEY 0x0008 #define TPACPI_DBG_FAN 0x0010 #define TPACPI_DBG_BRGHT 0x0020 +#define TPACPI_DBG_MIXER 0x0040 #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") @@ -6375,21 +6376,260 @@ static struct ibm_struct brightness_driver_data = { * Volume subdriver */ -static int volume_offset = 0x30; +/* + * IBM ThinkPads have a simple volume controller with MUTE gating. + * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. + * + * Since the *61 series (and probably also the later *60 series), Lenovo + * ThinkPads only implement the MUTE gate. + * + * EC register 0x30 + * Bit 6: MUTE (1 mutes sound) + * Bit 3-0: Volume + * Other bits should be zero as far as we know. + * + * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and + * bits 3-0 (volume). Other bits in NVRAM may have other functions, + * such as bit 7 which is used to detect repeated presses of MUTE, + * and we leave them unchanged. + */ + +enum { + TP_EC_AUDIO = 0x30, + + /* TP_EC_AUDIO bits */ + TP_EC_AUDIO_MUTESW = 6, + + /* TP_EC_AUDIO bitmasks */ + TP_EC_AUDIO_LVL_MSK = 0x0F, + TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), + + /* Maximum volume */ + TP_EC_VOLUME_MAX = 14, +}; + +enum tpacpi_volume_access_mode { + TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ + TPACPI_VOL_MODE_EC, /* Pure EC control */ + TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ + TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ + TPACPI_VOL_MODE_MAX +}; + +static enum tpacpi_volume_access_mode volume_mode = + TPACPI_VOL_MODE_MAX; + + +/* + * Used to syncronize writers to TP_EC_AUDIO and + * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write + */ +static struct mutex volume_mutex; + +static void tpacpi_volume_checkpoint_nvram(void) +{ + u8 lec = 0; + u8 b_nvram; + const u8 ec_mask = TP_EC_AUDIO_LVL_MSK | TP_EC_AUDIO_MUTESW_MSK; + + if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) + return; + + vdbg_printk(TPACPI_DBG_MIXER, + "trying to checkpoint mixer state to NVRAM...\n"); + + if (mutex_lock_killable(&volume_mutex) < 0) + return; + + if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) + goto unlock; + lec &= ec_mask; + b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); + + if (lec != (b_nvram & ec_mask)) { + /* NVRAM needs update */ + b_nvram &= ~ec_mask; + b_nvram |= lec; + nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); + dbg_printk(TPACPI_DBG_MIXER, + "updated NVRAM mixer status to 0x%02x (0x%02x)\n", + (unsigned int) lec, (unsigned int) b_nvram); + } else { + vdbg_printk(TPACPI_DBG_MIXER, + "NVRAM mixer status already is 0x%02x (0x%02x)\n", + (unsigned int) lec, (unsigned int) b_nvram); + } + +unlock: + mutex_unlock(&volume_mutex); +} + +static int volume_get_status_ec(u8 *status) +{ + u8 s; + + if (!acpi_ec_read(TP_EC_AUDIO, &s)) + return -EIO; + + *status = s; + + dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); + + return 0; +} + +static int volume_get_status(u8 *status) +{ + return volume_get_status_ec(status); +} + +static int volume_set_status_ec(const u8 status) +{ + if (!acpi_ec_write(TP_EC_AUDIO, status)) + return -EIO; + + dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); + + return 0; +} + +static int volume_set_status(const u8 status) +{ + return volume_set_status_ec(status); +} + +static int volume_set_mute_ec(const bool mute) +{ + int rc; + u8 s, n; + + if (mutex_lock_killable(&volume_mutex) < 0) + return -EINTR; + + rc = volume_get_status_ec(&s); + if (rc) + goto unlock; + + n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : + s & ~TP_EC_AUDIO_MUTESW_MSK; + + if (n != s) + rc = volume_set_status_ec(n); + +unlock: + mutex_unlock(&volume_mutex); + return rc; +} + +static int volume_set_mute(const bool mute) +{ + dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", + (mute) ? "" : "un"); + return volume_set_mute_ec(mute); +} + +static int volume_set_volume_ec(const u8 vol) +{ + int rc; + u8 s, n; + + if (vol > TP_EC_VOLUME_MAX) + return -EINVAL; + + if (mutex_lock_killable(&volume_mutex) < 0) + return -EINTR; + + rc = volume_get_status_ec(&s); + if (rc) + goto unlock; + + n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; + + if (n != s) + rc = volume_set_status_ec(n); + +unlock: + mutex_unlock(&volume_mutex); + return rc; +} + +static int volume_set_volume(const u8 vol) +{ + dbg_printk(TPACPI_DBG_MIXER, + "trying to set volume level to %hu\n", vol); + return volume_set_volume_ec(vol); +} + +static void volume_suspend(pm_message_t state) +{ + tpacpi_volume_checkpoint_nvram(); +} + +static void volume_shutdown(void) +{ + tpacpi_volume_checkpoint_nvram(); +} + +static void volume_exit(void) +{ + tpacpi_volume_checkpoint_nvram(); +} + +static int __init volume_init(struct ibm_init_struct *iibm) +{ + vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); + + mutex_init(&volume_mutex); + + /* + * Check for module parameter bogosity, note that we + * init volume_mode to TPACPI_VOL_MODE_MAX in order to be + * able to detect "unspecified" + */ + if (volume_mode > TPACPI_VOL_MODE_MAX) + return -EINVAL; + + if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { + printk(TPACPI_ERR + "UCMS step volume mode not implemented, " + "please contact %s\n", TPACPI_MAIL); + return 1; + } + + if (volume_mode == TPACPI_VOL_MODE_AUTO || + volume_mode == TPACPI_VOL_MODE_MAX) { + volume_mode = TPACPI_VOL_MODE_ECNVRAM; + + dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, + "driver auto-selected volume_mode=%d\n", + volume_mode); + } else { + dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, + "using user-supplied volume_mode=%d\n", + volume_mode); + } + + vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, + "volume is supported\n"); + + return 0; +} static int volume_read(char *p) { int len = 0; - u8 level; + u8 status; - if (!acpi_ec_read(volume_offset, &level)) { + if (volume_get_status(&status) < 0) { len += sprintf(p + len, "level:\t\tunreadable\n"); } else { - len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); - len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); + len += sprintf(p + len, "level:\t\t%d\n", + status & TP_EC_AUDIO_LVL_MSK); + len += sprintf(p + len, "mute:\t\t%s\n", + onoff(status, TP_EC_AUDIO_MUTESW)); len += sprintf(p + len, "commands:\tup, down, mute\n"); len += sprintf(p + len, "commands:\tlevel " - " ( is 0-15)\n"); + " ( is 0-%d)\n", TP_EC_VOLUME_MAX); } return len; @@ -6397,77 +6637,55 @@ static int volume_read(char *p) static int volume_write(char *buf) { - int cmos_cmd, inc, i; - u8 level, mute; - int new_level, new_mute; + u8 s; + u8 new_level, new_mute; + int l; char *cmd; + int rc; - while ((cmd = next_cmd(&buf))) { - if (!acpi_ec_read(volume_offset, &level)) - return -EIO; - new_mute = mute = level & 0x40; - new_level = level = level & 0xf; + rc = volume_get_status(&s); + if (rc < 0) + return rc; + new_level = s & TP_EC_AUDIO_LVL_MSK; + new_mute = s & TP_EC_AUDIO_MUTESW_MSK; + + while ((cmd = next_cmd(&buf))) { if (strlencmp(cmd, "up") == 0) { - if (mute) + if (new_mute) new_mute = 0; - else - new_level = level == 15 ? 15 : level + 1; + else if (new_level < TP_EC_VOLUME_MAX) + new_level++; } else if (strlencmp(cmd, "down") == 0) { - if (mute) + if (new_mute) new_mute = 0; - else - new_level = level == 0 ? 0 : level - 1; - } else if (sscanf(cmd, "level %d", &new_level) == 1 && - new_level >= 0 && new_level <= 15) { - /* new_level set */ + else if (new_level > 0) + new_level--; + } else if (sscanf(cmd, "level %u", &l) == 1 && + l >= 0 && l <= TP_EC_VOLUME_MAX) { + new_level = l; } else if (strlencmp(cmd, "mute") == 0) { - new_mute = 0x40; + new_mute = TP_EC_AUDIO_MUTESW_MSK; } else return -EINVAL; + } - if (new_level != level) { - /* mute doesn't change */ - - cmos_cmd = (new_level > level) ? - TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; - inc = new_level > level ? 1 : -1; - - if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || - !acpi_ec_write(volume_offset, level))) - return -EIO; - - for (i = level; i != new_level; i += inc) - if (issue_thinkpad_cmos_command(cmos_cmd) || - !acpi_ec_write(volume_offset, i + inc)) - return -EIO; - - if (mute && - (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || - !acpi_ec_write(volume_offset, new_level + mute))) { - return -EIO; - } - } - - if (new_mute != mute) { - /* level doesn't change */ + tpacpi_disclose_usertask("procfs volume", + "%smute and set level to %d\n", + new_mute ? "" : "un", new_level); - cmos_cmd = (new_mute) ? - TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; + rc = volume_set_status(new_mute | new_level); - if (issue_thinkpad_cmos_command(cmos_cmd) || - !acpi_ec_write(volume_offset, level + new_mute)) - return -EIO; - } - } - - return 0; + return (rc == -EINTR) ? -ERESTARTSYS : rc; } static struct ibm_struct volume_driver_data = { .name = "volume", .read = volume_read, .write = volume_write, + .exit = volume_exit, + .suspend = volume_suspend, + .shutdown = volume_shutdown, }; /************************************************************************* @@ -8121,6 +8339,7 @@ static struct ibm_init_struct ibms_init[] __initdata = { .data = &brightness_driver_data, }, { + .init = volume_init, .data = &volume_driver_data, }, { @@ -8186,6 +8405,11 @@ MODULE_PARM_DESC(hotkey_report_mode, "used for backwards compatibility with userspace, " "see documentation"); +module_param_named(volume_mode, volume_mode, uint, 0444); +MODULE_PARM_DESC(volume_mode, + "Selects volume control strategy: " + "0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); + #define TPACPI_PARAM(feature) \ module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ -- cgit v1.2.3 From a112ceee673629afc204bf6b4a4828a6143a083f Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Tue, 15 Dec 2009 21:51:09 -0200 Subject: thinkpad-acpi: support MUTE-only ThinkPads Lenovo removed the extra mixer since the T61 and thereabouts. Newer Lenovo models only have the mute gate function, and leave the volume control to the HDA mixer. Until a way to automatically query the firmware about its audio control capabilities is discovered (there might not be any), use a white/black list. We will likely need to ask T60 (old and new model) and Z60/Z61 users whether they have volume control to populate the black/white list. Meanwhile, provide a volume_capabilities parameter that can be used to override the defaults. Signed-off-by: Henrique de Moraes Holschuh Cc: Lorne Applebaum Cc: Matthew Garrett Signed-off-by: Len Brown --- Documentation/laptops/thinkpad-acpi.txt | 19 +++- drivers/platform/x86/thinkpad_acpi.c | 159 ++++++++++++++++++++++++++------ 2 files changed, 149 insertions(+), 29 deletions(-) (limited to 'drivers/platform') diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt index 96687d0106a9..bd87682103c1 100644 --- a/Documentation/laptops/thinkpad-acpi.txt +++ b/Documentation/laptops/thinkpad-acpi.txt @@ -1098,18 +1098,31 @@ Volume control procfs: /proc/acpi/ibm/volume This feature allows volume control on ThinkPad models with a digital -volume knob, as well as mute/unmute control. The available commands are: +volume knob (when available, not all models have it), as well as +mute/unmute control. The available commands are: echo up >/proc/acpi/ibm/volume echo down >/proc/acpi/ibm/volume echo mute >/proc/acpi/ibm/volume + echo unmute >/proc/acpi/ibm/volume echo 'level ' >/proc/acpi/ibm/volume The number range is 0 to 14 although not all of them may be distinct. The unmute the volume after the mute command, use either the -up or down command (the level command will not unmute the volume). +up or down command (the level command will not unmute the volume), or +the unmute command. + The current volume level and mute state is shown in the file. +You can use the volume_capabilities parameter to tell the driver +whether your thinkpad has volume control or mute-only control: +volume_capabilities=1 for mixers with mute and volume control, +volume_capabilities=2 for mixers with only mute control. + +If the driver misdetects the capabilities for your ThinkPad model, +please report this to ibm-acpi-devel@lists.sourceforge.net, so that we +can update the driver. + There are two strategies for volume control. To select which one should be used, use the volume_mode module parameter: volume_mode=1 selects EC mode, and volume_mode=3 selects EC mode with NVRAM backing @@ -1450,3 +1463,5 @@ Sysfs interface changelog: is deprecated and marked for removal. 0x020600: Marker for backlight change event support. + +0x020700: Support for mute-only mixers. diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index a2f5312c6a4e..4d909d5a0340 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -22,7 +22,7 @@ */ #define TPACPI_VERSION "0.23" -#define TPACPI_SYSFS_VERSION 0x020600 +#define TPACPI_SYSFS_VERSION 0x020700 /* * Changelog: @@ -299,6 +299,7 @@ static struct { u32 fan_ctrl_status_undef:1; u32 second_fan:1; u32 beep_needs_two_args:1; + u32 mixer_no_level_control:1; u32 input_device_registered:1; u32 platform_drv_registered:1; u32 platform_drv_attrs_registered:1; @@ -426,6 +427,12 @@ static void tpacpi_log_usertask(const char * const what) .ec = TPACPI_MATCH_ANY, \ .quirks = (__quirk) } +#define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ + { .vendor = PCI_VENDOR_ID_LENOVO, \ + .bios = TPACPI_MATCH_ANY, \ + .ec = TPID(__id1, __id2), \ + .quirks = (__quirk) } + struct tpacpi_quirk { unsigned int vendor; u16 bios; @@ -6416,9 +6423,17 @@ enum tpacpi_volume_access_mode { TPACPI_VOL_MODE_MAX }; +enum tpacpi_volume_capabilities { + TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ + TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ + TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ + TPACPI_VOL_CAP_MAX +}; + static enum tpacpi_volume_access_mode volume_mode = TPACPI_VOL_MODE_MAX; +static enum tpacpi_volume_capabilities volume_capabilities; /* * Used to syncronize writers to TP_EC_AUDIO and @@ -6430,7 +6445,7 @@ static void tpacpi_volume_checkpoint_nvram(void) { u8 lec = 0; u8 b_nvram; - const u8 ec_mask = TP_EC_AUDIO_LVL_MSK | TP_EC_AUDIO_MUTESW_MSK; + u8 ec_mask; if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) return; @@ -6438,6 +6453,11 @@ static void tpacpi_volume_checkpoint_nvram(void) vdbg_printk(TPACPI_DBG_MIXER, "trying to checkpoint mixer state to NVRAM...\n"); + if (tp_features.mixer_no_level_control) + ec_mask = TP_EC_AUDIO_MUTESW_MSK; + else + ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; + if (mutex_lock_killable(&volume_mutex) < 0) return; @@ -6575,8 +6595,36 @@ static void volume_exit(void) tpacpi_volume_checkpoint_nvram(); } +#define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ +#define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ + +static const struct tpacpi_quirk volume_quirk_table[] __initconst = { + /* Whitelist volume level on all IBM by default */ + { .vendor = PCI_VENDOR_ID_IBM, + .bios = TPACPI_MATCH_ANY, + .ec = TPACPI_MATCH_ANY, + .quirks = TPACPI_VOL_Q_LEVEL }, + + /* Lenovo models with volume control (needs confirmation) */ + TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ + TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ + TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ + TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ + TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ + TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ + TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ + + /* Whitelist mute-only on all Lenovo by default */ + { .vendor = PCI_VENDOR_ID_LENOVO, + .bios = TPACPI_MATCH_ANY, + .ec = TPACPI_MATCH_ANY, + .quirks = TPACPI_VOL_Q_MUTEONLY } +}; + static int __init volume_init(struct ibm_init_struct *iibm) { + unsigned long quirks; + vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); mutex_init(&volume_mutex); @@ -6596,6 +6644,36 @@ static int __init volume_init(struct ibm_init_struct *iibm) return 1; } + if (volume_capabilities >= TPACPI_VOL_CAP_MAX) + return -EINVAL; + + quirks = tpacpi_check_quirks(volume_quirk_table, + ARRAY_SIZE(volume_quirk_table)); + + switch (volume_capabilities) { + case TPACPI_VOL_CAP_AUTO: + if (quirks & TPACPI_VOL_Q_MUTEONLY) + tp_features.mixer_no_level_control = 1; + else if (quirks & TPACPI_VOL_Q_LEVEL) + tp_features.mixer_no_level_control = 0; + else + return 1; /* no mixer */ + break; + case TPACPI_VOL_CAP_VOLMUTE: + tp_features.mixer_no_level_control = 0; + break; + case TPACPI_VOL_CAP_MUTEONLY: + tp_features.mixer_no_level_control = 1; + break; + default: + return 1; + } + + if (volume_capabilities != TPACPI_VOL_CAP_AUTO) + dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, + "using user-supplied volume_capabilities=%d\n", + volume_capabilities); + if (volume_mode == TPACPI_VOL_MODE_AUTO || volume_mode == TPACPI_VOL_MODE_MAX) { volume_mode = TPACPI_VOL_MODE_ECNVRAM; @@ -6610,7 +6688,8 @@ static int __init volume_init(struct ibm_init_struct *iibm) } vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, - "volume is supported\n"); + "mute is supported, volume control is %s\n", + str_supported(!tp_features.mixer_no_level_control)); return 0; } @@ -6623,13 +6702,21 @@ static int volume_read(char *p) if (volume_get_status(&status) < 0) { len += sprintf(p + len, "level:\t\tunreadable\n"); } else { - len += sprintf(p + len, "level:\t\t%d\n", - status & TP_EC_AUDIO_LVL_MSK); + if (tp_features.mixer_no_level_control) + len += sprintf(p + len, "level:\t\tunsupported\n"); + else + len += sprintf(p + len, "level:\t\t%d\n", + status & TP_EC_AUDIO_LVL_MSK); + len += sprintf(p + len, "mute:\t\t%s\n", onoff(status, TP_EC_AUDIO_MUTESW)); - len += sprintf(p + len, "commands:\tup, down, mute\n"); - len += sprintf(p + len, "commands:\tlevel " + + len += sprintf(p + len, "commands:\tunmute, mute\n"); + if (!tp_features.mixer_no_level_control) { + len += sprintf(p + len, "commands:\tup, down\n"); + len += sprintf(p + len, "commands:\tlevel " " ( is 0-%d)\n", TP_EC_VOLUME_MAX); + } } return len; @@ -6651,30 +6738,43 @@ static int volume_write(char *buf) new_mute = s & TP_EC_AUDIO_MUTESW_MSK; while ((cmd = next_cmd(&buf))) { - if (strlencmp(cmd, "up") == 0) { - if (new_mute) - new_mute = 0; - else if (new_level < TP_EC_VOLUME_MAX) - new_level++; - } else if (strlencmp(cmd, "down") == 0) { - if (new_mute) - new_mute = 0; - else if (new_level > 0) - new_level--; - } else if (sscanf(cmd, "level %u", &l) == 1 && - l >= 0 && l <= TP_EC_VOLUME_MAX) { - new_level = l; - } else if (strlencmp(cmd, "mute") == 0) { + if (!tp_features.mixer_no_level_control) { + if (strlencmp(cmd, "up") == 0) { + if (new_mute) + new_mute = 0; + else if (new_level < TP_EC_VOLUME_MAX) + new_level++; + continue; + } else if (strlencmp(cmd, "down") == 0) { + if (new_mute) + new_mute = 0; + else if (new_level > 0) + new_level--; + continue; + } else if (sscanf(cmd, "level %u", &l) == 1 && + l >= 0 && l <= TP_EC_VOLUME_MAX) { + new_level = l; + continue; + } + } + if (strlencmp(cmd, "mute") == 0) new_mute = TP_EC_AUDIO_MUTESW_MSK; - } else + else if (strlencmp(cmd, "unmute") == 0) + new_mute = 0; + else return -EINVAL; } - tpacpi_disclose_usertask("procfs volume", - "%smute and set level to %d\n", - new_mute ? "" : "un", new_level); - - rc = volume_set_status(new_mute | new_level); + if (tp_features.mixer_no_level_control) { + tpacpi_disclose_usertask("procfs volume", "%smute\n", + new_mute ? "" : "un"); + rc = volume_set_mute(!!new_mute); + } else { + tpacpi_disclose_usertask("procfs volume", + "%smute and set level to %d\n", + new_mute ? "" : "un", new_level); + rc = volume_set_status(new_mute | new_level); + } return (rc == -EINTR) ? -ERESTARTSYS : rc; } @@ -8410,6 +8510,11 @@ MODULE_PARM_DESC(volume_mode, "Selects volume control strategy: " "0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); +module_param_named(volume_capabilities, volume_capabilities, uint, 0444); +MODULE_PARM_DESC(volume_capabilities, + "Selects the mixer capabilites: " + "0=auto, 1=volume and mute, 2=mute only"); + #define TPACPI_PARAM(feature) \ module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ -- cgit v1.2.3 From c7ac6291ea7ebc568a1fce16fed87d102898f264 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Tue, 15 Dec 2009 21:51:10 -0200 Subject: thinkpad-acpi: disable volume control Disable volume control by default. It can be enabled at module load time by a module parameter (volume_control=1). The audio control mixer that thinkpad-acpi interacts with is fully functional without any drivers, and operated by hotkeys. The idea behind the console audio control is that the human operator is the only one that can interact with it. The ThinkVantage suite in Windows does not allow any software-based overrides, and only does OSD (on-screen-display) functions. The Linux driver will, with the addition of the ALSA interface, try to follow and enforce the ThinkVantage UI design: The user is supposed to use the keyboard hotkeys to interact with the console audio control. The kernel and the desktop environment is supposed to cooperate to provide proper user feedback through on-screen-display functions. Distros are urged to not to enable volume control by default. Enabling this must be a local admin's decision. This is the reason why there is no Kconfig option. Keep in mind that all ThinkPads have a normal, main mixer (AC97 or HDA) for regular software-based audio control. We are not talking about that mixer here. Advanced users are, of course, free to enable volume control and do as they please. Signed-off-by: Henrique de Moraes Holschuh Cc: Lorne Applebaum Cc: Matthew Garrett Signed-off-by: Len Brown --- Documentation/laptops/thinkpad-acpi.txt | 13 +++++++++ drivers/platform/x86/thinkpad_acpi.c | 47 +++++++++++++++++++++++++++++---- 2 files changed, 55 insertions(+), 5 deletions(-) (limited to 'drivers/platform') diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt index bd87682103c1..6a5814330e51 100644 --- a/Documentation/laptops/thinkpad-acpi.txt +++ b/Documentation/laptops/thinkpad-acpi.txt @@ -1097,6 +1097,18 @@ Volume control procfs: /proc/acpi/ibm/volume +NOTE: by default, the volume control interface operates in read-only +mode, as it is supposed to be used for on-screen-display purposes. +The read/write mode can be enabled through the use of the +"volume_control=1" module parameter. + +NOTE: distros are urged to not enable volume_control by default, this +should be done by the local admin only. The ThinkPad UI is for the +console audio control to be done through the volume keys only, and for +the desktop environment to just provide on-screen-display feedback. +Software volume control should be done only in the main AC97/HDA +mixer. + This feature allows volume control on ThinkPad models with a digital volume knob (when available, not all models have it), as well as mute/unmute control. The available commands are: @@ -1465,3 +1477,4 @@ Sysfs interface changelog: 0x020600: Marker for backlight change event support. 0x020700: Support for mute-only mixers. + Volume control in read-only mode by default. diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 4d909d5a0340..2d74926913d2 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -311,6 +311,7 @@ static struct { static struct { u16 hotkey_mask_ff:1; + u16 volume_ctrl_forbidden:1; } tp_warned; struct thinkpad_id_data { @@ -6434,6 +6435,7 @@ static enum tpacpi_volume_access_mode volume_mode = TPACPI_VOL_MODE_MAX; static enum tpacpi_volume_capabilities volume_capabilities; +static int volume_control_allowed; /* * Used to syncronize writers to TP_EC_AUDIO and @@ -6449,6 +6451,8 @@ static void tpacpi_volume_checkpoint_nvram(void) if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) return; + if (!volume_control_allowed) + return; vdbg_printk(TPACPI_DBG_MIXER, "trying to checkpoint mixer state to NVRAM...\n"); @@ -6691,6 +6695,12 @@ static int __init volume_init(struct ibm_init_struct *iibm) "mute is supported, volume control is %s\n", str_supported(!tp_features.mixer_no_level_control)); + printk(TPACPI_INFO + "Console audio control enabled, mode: %s\n", + (volume_control_allowed) ? + "override (read/write)" : + "monitor (read only)"); + return 0; } @@ -6711,11 +6721,16 @@ static int volume_read(char *p) len += sprintf(p + len, "mute:\t\t%s\n", onoff(status, TP_EC_AUDIO_MUTESW)); - len += sprintf(p + len, "commands:\tunmute, mute\n"); - if (!tp_features.mixer_no_level_control) { - len += sprintf(p + len, "commands:\tup, down\n"); - len += sprintf(p + len, "commands:\tlevel " - " ( is 0-%d)\n", TP_EC_VOLUME_MAX); + if (volume_control_allowed) { + len += sprintf(p + len, "commands:\tunmute, mute\n"); + if (!tp_features.mixer_no_level_control) { + len += sprintf(p + len, + "commands:\tup, down\n"); + len += sprintf(p + len, + "commands:\tlevel " + " ( is 0-%d)\n", + TP_EC_VOLUME_MAX); + } } } @@ -6730,6 +6745,23 @@ static int volume_write(char *buf) char *cmd; int rc; + /* + * We do allow volume control at driver startup, so that the + * user can set initial state through the volume=... parameter hack. + */ + if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { + if (unlikely(!tp_warned.volume_ctrl_forbidden)) { + tp_warned.volume_ctrl_forbidden = 1; + printk(TPACPI_NOTICE + "Console audio control in monitor mode, " + "changes are not allowed.\n"); + printk(TPACPI_NOTICE + "Use the volume_control=1 module parameter " + "to enable volume control\n"); + } + return -EPERM; + } + rc = volume_get_status(&s); if (rc < 0) return rc; @@ -8515,6 +8547,11 @@ MODULE_PARM_DESC(volume_capabilities, "Selects the mixer capabilites: " "0=auto, 1=volume and mute, 2=mute only"); +module_param_named(volume_control, volume_control_allowed, bool, 0444); +MODULE_PARM_DESC(volume_control, + "Enables software override for the console audio " + "control when true"); + #define TPACPI_PARAM(feature) \ module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ -- cgit v1.2.3 From 0d204c34e85d1d63e5fdd3e3192747daf0ee7ec1 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Tue, 15 Dec 2009 21:51:11 -0200 Subject: thinkpad-acpi: basic ALSA mixer support (v2) Add the basic ALSA mixer functionality. The mixer is event-driven, and will work fine on IBM ThinkPads. I expect Lenovo ThinkPads will cause some trouble with the event interface. Heavily based on work by Lorne Applebaum and ideas from Matthew Garrett . Signed-off-by: Henrique de Moraes Holschuh Cc: Lorne Applebaum Cc: Matthew Garrett Signed-off-by: Len Brown --- Documentation/laptops/thinkpad-acpi.txt | 7 +- drivers/platform/x86/thinkpad_acpi.c | 237 +++++++++++++++++++++++++++++++- 2 files changed, 239 insertions(+), 5 deletions(-) (limited to 'drivers/platform') diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt index 6a5814330e51..b4ed30cb1375 100644 --- a/Documentation/laptops/thinkpad-acpi.txt +++ b/Documentation/laptops/thinkpad-acpi.txt @@ -1096,6 +1096,7 @@ Volume control -------------- procfs: /proc/acpi/ibm/volume +ALSA: "ThinkPad Console Audio Control", default ID: "ThinkPadEC" NOTE: by default, the volume control interface operates in read-only mode, as it is supposed to be used for on-screen-display purposes. @@ -1144,9 +1145,8 @@ The driver will operate in volume_mode=3 by default. If that does not work well on your ThinkPad model, please report this to ibm-acpi-devel@lists.sourceforge.net. -The ALSA mixer interface to this feature is still missing, but patches -to add it exist. That problem should be addressed in the not so -distant future. +The driver supports the standard ALSA module parameters. If the ALSA +mixer is disabled, the driver will disable all volume functionality. Fan control and monitoring: fan speed, fan enable/disable @@ -1478,3 +1478,4 @@ Sysfs interface changelog: 0x020700: Support for mute-only mixers. Volume control in read-only mode by default. + Marker for ALSA mixer support. diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 2d74926913d2..e0fbe73b8dff 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -76,6 +76,10 @@ #include #include +#include +#include +#include + #include #include @@ -6402,6 +6406,22 @@ static struct ibm_struct brightness_driver_data = { * and we leave them unchanged. */ +#define TPACPI_ALSA_DRVNAME "ThinkPad EC" +#define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" +#define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME + +static int alsa_index = SNDRV_DEFAULT_IDX1; +static char *alsa_id = "ThinkPadEC"; +static int alsa_enable = SNDRV_DEFAULT_ENABLE1; + +struct tpacpi_alsa_data { + struct snd_card *card; + struct snd_ctl_elem_id *ctl_mute_id; + struct snd_ctl_elem_id *ctl_vol_id; +}; + +static struct snd_card *alsa_card; + enum { TP_EC_AUDIO = 0x30, @@ -6584,11 +6604,104 @@ static int volume_set_volume(const u8 vol) return volume_set_volume_ec(vol); } +static void volume_alsa_notify_change(void) +{ + struct tpacpi_alsa_data *d; + + if (alsa_card && alsa_card->private_data) { + d = alsa_card->private_data; + if (d->ctl_mute_id) + snd_ctl_notify(alsa_card, + SNDRV_CTL_EVENT_MASK_VALUE, + d->ctl_mute_id); + if (d->ctl_vol_id) + snd_ctl_notify(alsa_card, + SNDRV_CTL_EVENT_MASK_VALUE, + d->ctl_vol_id); + } +} + +static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = TP_EC_VOLUME_MAX; + return 0; +} + +static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u8 s; + int rc; + + rc = volume_get_status(&s); + if (rc < 0) + return rc; + + ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; + return 0; +} + +static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return volume_set_volume(ucontrol->value.integer.value[0]); +} + +#define volume_alsa_mute_info snd_ctl_boolean_mono_info + +static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u8 s; + int rc; + + rc = volume_get_status(&s); + if (rc < 0) + return rc; + + ucontrol->value.integer.value[0] = + (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; + return 0; +} + +static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return volume_set_mute(!ucontrol->value.integer.value[0]); +} + +static struct snd_kcontrol_new volume_alsa_control_vol __devinitdata = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Console Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = volume_alsa_vol_info, + .get = volume_alsa_vol_get, +}; + +static struct snd_kcontrol_new volume_alsa_control_mute __devinitdata = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Console Playback Switch", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = volume_alsa_mute_info, + .get = volume_alsa_mute_get, +}; + static void volume_suspend(pm_message_t state) { tpacpi_volume_checkpoint_nvram(); } +static void volume_resume(void) +{ + volume_alsa_notify_change(); +} + static void volume_shutdown(void) { tpacpi_volume_checkpoint_nvram(); @@ -6596,9 +6709,87 @@ static void volume_shutdown(void) static void volume_exit(void) { + if (alsa_card) { + snd_card_free(alsa_card); + alsa_card = NULL; + } + tpacpi_volume_checkpoint_nvram(); } +static int __init volume_create_alsa_mixer(void) +{ + struct snd_card *card; + struct tpacpi_alsa_data *data; + struct snd_kcontrol *ctl_vol; + struct snd_kcontrol *ctl_mute; + int rc; + + rc = snd_card_create(alsa_index, alsa_id, THIS_MODULE, + sizeof(struct tpacpi_alsa_data), &card); + if (rc < 0) + return rc; + if (!card) + return -ENOMEM; + + BUG_ON(!card->private_data); + data = card->private_data; + data->card = card; + + strlcpy(card->driver, TPACPI_ALSA_DRVNAME, + sizeof(card->driver)); + strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, + sizeof(card->shortname)); + snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", + (thinkpad_id.ec_version_str) ? + thinkpad_id.ec_version_str : "(unknown)"); + snprintf(card->longname, sizeof(card->longname), + "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, + (thinkpad_id.ec_version_str) ? + thinkpad_id.ec_version_str : "unknown"); + + if (volume_control_allowed) { + volume_alsa_control_vol.put = volume_alsa_vol_put; + volume_alsa_control_vol.access = + SNDRV_CTL_ELEM_ACCESS_READWRITE; + + volume_alsa_control_mute.put = volume_alsa_mute_put; + volume_alsa_control_mute.access = + SNDRV_CTL_ELEM_ACCESS_READWRITE; + } + + if (!tp_features.mixer_no_level_control) { + ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); + rc = snd_ctl_add(card, ctl_vol); + if (rc < 0) { + printk(TPACPI_ERR + "Failed to create ALSA volume control\n"); + goto err_out; + } + data->ctl_vol_id = &ctl_vol->id; + } + + ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); + rc = snd_ctl_add(card, ctl_mute); + if (rc < 0) { + printk(TPACPI_ERR "Failed to create ALSA mute control\n"); + goto err_out; + } + data->ctl_mute_id = &ctl_mute->id; + + snd_card_set_dev(card, &tpacpi_pdev->dev); + rc = snd_card_register(card); + +err_out: + if (rc < 0) { + snd_card_free(card); + card = NULL; + } + + alsa_card = card; + return rc; +} + #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ @@ -6628,6 +6819,7 @@ static const struct tpacpi_quirk volume_quirk_table[] __initconst = { static int __init volume_init(struct ibm_init_struct *iibm) { unsigned long quirks; + int rc; vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); @@ -6651,6 +6843,17 @@ static int __init volume_init(struct ibm_init_struct *iibm) if (volume_capabilities >= TPACPI_VOL_CAP_MAX) return -EINVAL; + /* + * The ALSA mixer is our primary interface. + * When disabled, don't install the subdriver at all + */ + if (!alsa_enable) { + vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, + "ALSA mixer disabled by parameter, " + "not loading volume subdriver...\n"); + return 1; + } + quirks = tpacpi_check_quirks(volume_quirk_table, ARRAY_SIZE(volume_quirk_table)); @@ -6695,12 +6898,26 @@ static int __init volume_init(struct ibm_init_struct *iibm) "mute is supported, volume control is %s\n", str_supported(!tp_features.mixer_no_level_control)); + rc = volume_create_alsa_mixer(); + if (rc) { + printk(TPACPI_ERR + "Could not create the ALSA mixer interface\n"); + return rc; + } + printk(TPACPI_INFO "Console audio control enabled, mode: %s\n", (volume_control_allowed) ? "override (read/write)" : "monitor (read only)"); + vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, + "registering volume hotkeys as change notification\n"); + tpacpi_hotkey_driver_mask_set(hotkey_driver_mask + | TP_ACPI_HKEY_VOLUP_MASK + | TP_ACPI_HKEY_VOLDWN_MASK + | TP_ACPI_HKEY_MUTE_MASK); + return 0; } @@ -6807,6 +7024,7 @@ static int volume_write(char *buf) new_mute ? "" : "un", new_level); rc = volume_set_status(new_mute | new_level); } + volume_alsa_notify_change(); return (rc == -EINTR) ? -ERESTARTSYS : rc; } @@ -6817,6 +7035,7 @@ static struct ibm_struct volume_driver_data = { .write = volume_write, .exit = volume_exit, .suspend = volume_suspend, + .resume = volume_resume, .shutdown = volume_shutdown, }; @@ -8115,10 +8334,16 @@ static void tpacpi_driver_event(const unsigned int hkey_event) tpacpi_brightness_notify_change(); } } + if (alsa_card) { + switch (hkey_event) { + case TP_HKEY_EV_VOL_UP: + case TP_HKEY_EV_VOL_DOWN: + case TP_HKEY_EV_VOL_MUTE: + volume_alsa_notify_change(); + } + } } - - static void hotkey_driver_event(const unsigned int scancode) { tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); @@ -8552,6 +8777,14 @@ MODULE_PARM_DESC(volume_control, "Enables software override for the console audio " "control when true"); +/* ALSA module API parameters */ +module_param_named(index, alsa_index, int, 0444); +MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); +module_param_named(id, alsa_id, charp, 0444); +MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); +module_param_named(enable, alsa_enable, bool, 0444); +MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); + #define TPACPI_PARAM(feature) \ module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ -- cgit v1.2.3 From 887965e6576a78f71b9b98dec43fd1c73becd2e8 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Tue, 15 Dec 2009 21:51:12 -0200 Subject: thinkpad-acpi: convert to seq_file Signed-off-by: Alexey Dobriyan Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 285 ++++++++++++++++------------------- 1 file changed, 132 insertions(+), 153 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index e0fbe73b8dff..c21c35e2dcc6 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -61,6 +61,7 @@ #include #include +#include #include #include #include @@ -261,7 +262,7 @@ struct tp_acpi_drv_struct { struct ibm_struct { char *name; - int (*read) (char *); + int (*read) (struct seq_file *); int (*write) (char *); void (*exit) (void); void (*resume) (void); @@ -789,36 +790,25 @@ static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) **************************************************************************** ****************************************************************************/ -static int dispatch_procfs_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int dispatch_proc_show(struct seq_file *m, void *v) { - struct ibm_struct *ibm = data; - int len; + struct ibm_struct *ibm = m->private; if (!ibm || !ibm->read) return -EINVAL; + return ibm->read(m); +} - len = ibm->read(page); - if (len < 0) - return len; - - if (len <= off + count) - *eof = 1; - *start = page + off; - len -= off; - if (len > count) - len = count; - if (len < 0) - len = 0; - - return len; +static int dispatch_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, dispatch_proc_show, PDE(inode)->data); } -static int dispatch_procfs_write(struct file *file, +static ssize_t dispatch_proc_write(struct file *file, const char __user *userbuf, - unsigned long count, void *data) + size_t count, loff_t *pos) { - struct ibm_struct *ibm = data; + struct ibm_struct *ibm = PDE(file->f_path.dentry->d_inode)->data; char *kernbuf; int ret; @@ -847,6 +837,15 @@ static int dispatch_procfs_write(struct file *file, return ret; } +static const struct file_operations dispatch_proc_fops = { + .owner = THIS_MODULE, + .open = dispatch_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = dispatch_proc_write, +}; + static char *next_cmd(char **cmds) { char *start = *cmds; @@ -1401,12 +1400,10 @@ static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, } /* procfs -------------------------------------------------------------- */ -static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, char *p) +static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) { - int len = 0; - if (id >= TPACPI_RFK_SW_MAX) - len += sprintf(p + len, "status:\t\tnot supported\n"); + seq_printf(m, "status:\t\tnot supported\n"); else { int status; @@ -1420,13 +1417,13 @@ static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, char *p) return status; } - len += sprintf(p + len, "status:\t\t%s\n", + seq_printf(m, "status:\t\t%s\n", (status == TPACPI_RFK_RADIO_ON) ? "enabled" : "disabled"); - len += sprintf(p + len, "commands:\tenable, disable\n"); + seq_printf(m, "commands:\tenable, disable\n"); } - return len; + return 0; } static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) @@ -1904,14 +1901,11 @@ static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) return 0; } -static int thinkpad_acpi_driver_read(char *p) +static int thinkpad_acpi_driver_read(struct seq_file *m) { - int len = 0; - - len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); - len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); - - return len; + seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); + seq_printf(m, "version:\t%s\n", TPACPI_VERSION); + return 0; } static struct ibm_struct thinkpad_acpi_driver_data = { @@ -3759,14 +3753,13 @@ static void hotkey_resume(void) } /* procfs -------------------------------------------------------------- */ -static int hotkey_read(char *p) +static int hotkey_read(struct seq_file *m) { int res, status; - int len = 0; if (!tp_features.hotkey) { - len += sprintf(p + len, "status:\t\tnot supported\n"); - return len; + seq_printf(m, "status:\t\tnot supported\n"); + return 0; } if (mutex_lock_killable(&hotkey_mutex)) @@ -3778,17 +3771,16 @@ static int hotkey_read(char *p) if (res) return res; - len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); + seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); if (hotkey_all_mask) { - len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_user_mask); - len += sprintf(p + len, - "commands:\tenable, disable, reset, \n"); + seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); + seq_printf(m, "commands:\tenable, disable, reset, \n"); } else { - len += sprintf(p + len, "mask:\t\tnot supported\n"); - len += sprintf(p + len, "commands:\tenable, disable, reset\n"); + seq_printf(m, "mask:\t\tnot supported\n"); + seq_printf(m, "commands:\tenable, disable, reset\n"); } - return len; + return 0; } static void hotkey_enabledisable_warn(bool enable) @@ -4054,9 +4046,9 @@ static int __init bluetooth_init(struct ibm_init_struct *iibm) } /* procfs -------------------------------------------------------------- */ -static int bluetooth_read(char *p) +static int bluetooth_read(struct seq_file *m) { - return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, p); + return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); } static int bluetooth_write(char *buf) @@ -4244,9 +4236,9 @@ static int __init wan_init(struct ibm_init_struct *iibm) } /* procfs -------------------------------------------------------------- */ -static int wan_read(char *p) +static int wan_read(struct seq_file *m) { - return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, p); + return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); } static int wan_write(char *buf) @@ -4621,14 +4613,13 @@ static int video_expand_toggle(void) /* not reached */ } -static int video_read(char *p) +static int video_read(struct seq_file *m) { int status, autosw; - int len = 0; if (video_supported == TPACPI_VIDEO_NONE) { - len += sprintf(p + len, "status:\t\tnot supported\n"); - return len; + seq_printf(m, "status:\t\tnot supported\n"); + return 0; } status = video_outputsw_get(); @@ -4639,20 +4630,20 @@ static int video_read(char *p) if (autosw < 0) return autosw; - len += sprintf(p + len, "status:\t\tsupported\n"); - len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); - len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); + seq_printf(m, "status:\t\tsupported\n"); + seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); + seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); if (video_supported == TPACPI_VIDEO_NEW) - len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); - len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); - len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); - len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); + seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); + seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); + seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); + seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); if (video_supported == TPACPI_VIDEO_NEW) - len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); - len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); - len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); + seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); + seq_printf(m, "commands:\tauto_enable, auto_disable\n"); + seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); - return len; + return 0; } static int video_write(char *buf) @@ -4844,25 +4835,24 @@ static void light_exit(void) flush_workqueue(tpacpi_wq); } -static int light_read(char *p) +static int light_read(struct seq_file *m) { - int len = 0; int status; if (!tp_features.light) { - len += sprintf(p + len, "status:\t\tnot supported\n"); + seq_printf(m, "status:\t\tnot supported\n"); } else if (!tp_features.light_status) { - len += sprintf(p + len, "status:\t\tunknown\n"); - len += sprintf(p + len, "commands:\ton, off\n"); + seq_printf(m, "status:\t\tunknown\n"); + seq_printf(m, "commands:\ton, off\n"); } else { status = light_get_status(); if (status < 0) return status; - len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); - len += sprintf(p + len, "commands:\ton, off\n"); + seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); + seq_printf(m, "commands:\ton, off\n"); } - return len; + return 0; } static int light_write(char *buf) @@ -4940,20 +4930,18 @@ static void cmos_exit(void) device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); } -static int cmos_read(char *p) +static int cmos_read(struct seq_file *m) { - int len = 0; - /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, R30, R31, T20-22, X20-21 */ if (!cmos_handle) - len += sprintf(p + len, "status:\t\tnot supported\n"); + seq_printf(m, "status:\t\tnot supported\n"); else { - len += sprintf(p + len, "status:\t\tsupported\n"); - len += sprintf(p + len, "commands:\t ( is 0-21)\n"); + seq_printf(m, "status:\t\tsupported\n"); + seq_printf(m, "commands:\t ( is 0-21)\n"); } - return len; + return 0; } static int cmos_write(char *buf) @@ -5328,15 +5316,13 @@ static int __init led_init(struct ibm_init_struct *iibm) ((s) == TPACPI_LED_OFF ? "off" : \ ((s) == TPACPI_LED_ON ? "on" : "blinking")) -static int led_read(char *p) +static int led_read(struct seq_file *m) { - int len = 0; - if (!led_supported) { - len += sprintf(p + len, "status:\t\tnot supported\n"); - return len; + seq_printf(m, "status:\t\tnot supported\n"); + return 0; } - len += sprintf(p + len, "status:\t\tsupported\n"); + seq_printf(m, "status:\t\tsupported\n"); if (led_supported == TPACPI_LED_570) { /* 570 */ @@ -5345,15 +5331,15 @@ static int led_read(char *p) status = led_get_status(i); if (status < 0) return -EIO; - len += sprintf(p + len, "%d:\t\t%s\n", + seq_printf(m, "%d:\t\t%s\n", i, str_led_status(status)); } } - len += sprintf(p + len, "commands:\t" + seq_printf(m, "commands:\t" " on, off, blink ( is 0-15)\n"); - return len; + return 0; } static int led_write(char *buf) @@ -5426,18 +5412,16 @@ static int __init beep_init(struct ibm_init_struct *iibm) return (beep_handle)? 0 : 1; } -static int beep_read(char *p) +static int beep_read(struct seq_file *m) { - int len = 0; - if (!beep_handle) - len += sprintf(p + len, "status:\t\tnot supported\n"); + seq_printf(m, "status:\t\tnot supported\n"); else { - len += sprintf(p + len, "status:\t\tsupported\n"); - len += sprintf(p + len, "commands:\t ( is 0-17)\n"); + seq_printf(m, "status:\t\tsupported\n"); + seq_printf(m, "commands:\t ( is 0-17)\n"); } - return len; + return 0; } static int beep_write(char *buf) @@ -5798,9 +5782,8 @@ static void thermal_exit(void) } } -static int thermal_read(char *p) +static int thermal_read(struct seq_file *m) { - int len = 0; int n, i; struct ibm_thermal_sensors_struct t; @@ -5808,16 +5791,16 @@ static int thermal_read(char *p) if (unlikely(n < 0)) return n; - len += sprintf(p + len, "temperatures:\t"); + seq_printf(m, "temperatures:\t"); if (n > 0) { for (i = 0; i < (n - 1); i++) - len += sprintf(p + len, "%d ", t.temp[i] / 1000); - len += sprintf(p + len, "%d\n", t.temp[i] / 1000); + seq_printf(m, "%d ", t.temp[i] / 1000); + seq_printf(m, "%d\n", t.temp[i] / 1000); } else - len += sprintf(p + len, "not supported\n"); + seq_printf(m, "not supported\n"); - return len; + return 0; } static struct ibm_struct thermal_driver_data = { @@ -5832,39 +5815,38 @@ static struct ibm_struct thermal_driver_data = { static u8 ecdump_regs[256]; -static int ecdump_read(char *p) +static int ecdump_read(struct seq_file *m) { - int len = 0; int i, j; u8 v; - len += sprintf(p + len, "EC " + seq_printf(m, "EC " " +00 +01 +02 +03 +04 +05 +06 +07" " +08 +09 +0a +0b +0c +0d +0e +0f\n"); for (i = 0; i < 256; i += 16) { - len += sprintf(p + len, "EC 0x%02x:", i); + seq_printf(m, "EC 0x%02x:", i); for (j = 0; j < 16; j++) { if (!acpi_ec_read(i + j, &v)) break; if (v != ecdump_regs[i + j]) - len += sprintf(p + len, " *%02x", v); + seq_printf(m, " *%02x", v); else - len += sprintf(p + len, " %02x", v); + seq_printf(m, " %02x", v); ecdump_regs[i + j] = v; } - len += sprintf(p + len, "\n"); + seq_putc(m, '\n'); if (j != 16) break; } /* These are way too dangerous to advertise openly... */ #if 0 - len += sprintf(p + len, "commands:\t0x 0x" + seq_printf(m, "commands:\t0x 0x" " ( is 00-ff, is 00-ff)\n"); - len += sprintf(p + len, "commands:\t0x " + seq_printf(m, "commands:\t0x " " ( is 00-ff, is 0-255)\n"); #endif - return len; + return 0; } static int ecdump_write(char *buf) @@ -6317,23 +6299,22 @@ static void brightness_exit(void) tpacpi_brightness_checkpoint_nvram(); } -static int brightness_read(char *p) +static int brightness_read(struct seq_file *m) { - int len = 0; int level; level = brightness_get(NULL); if (level < 0) { - len += sprintf(p + len, "level:\t\tunreadable\n"); + seq_printf(m, "level:\t\tunreadable\n"); } else { - len += sprintf(p + len, "level:\t\t%d\n", level); - len += sprintf(p + len, "commands:\tup, down\n"); - len += sprintf(p + len, "commands:\tlevel " + seq_printf(m, "level:\t\t%d\n", level); + seq_printf(m, "commands:\tup, down\n"); + seq_printf(m, "commands:\tlevel " " ( is 0-%d)\n", (tp_features.bright_16levels) ? 15 : 7); } - return len; + return 0; } static int brightness_write(char *buf) @@ -6921,29 +6902,28 @@ static int __init volume_init(struct ibm_init_struct *iibm) return 0; } -static int volume_read(char *p) +static int volume_read(struct seq_file *m) { - int len = 0; u8 status; if (volume_get_status(&status) < 0) { - len += sprintf(p + len, "level:\t\tunreadable\n"); + seq_printf(m, "level:\t\tunreadable\n"); } else { if (tp_features.mixer_no_level_control) - len += sprintf(p + len, "level:\t\tunsupported\n"); + seq_printf(m, "level:\t\tunsupported\n"); else - len += sprintf(p + len, "level:\t\t%d\n", + seq_printf(m, "level:\t\t%d\n", status & TP_EC_AUDIO_LVL_MSK); - len += sprintf(p + len, "mute:\t\t%s\n", + seq_printf(m, "mute:\t\t%s\n", onoff(status, TP_EC_AUDIO_MUTESW)); if (volume_control_allowed) { - len += sprintf(p + len, "commands:\tunmute, mute\n"); + seq_printf(m, "commands:\tunmute, mute\n"); if (!tp_features.mixer_no_level_control) { - len += sprintf(p + len, + seq_printf(m, "commands:\tup, down\n"); - len += sprintf(p + len, + seq_printf(m, "commands:\tlevel " " ( is 0-%d)\n", TP_EC_VOLUME_MAX); @@ -6951,7 +6931,7 @@ static int volume_read(char *p) } } - return len; + return 0; } static int volume_write(char *buf) @@ -8113,9 +8093,8 @@ static void fan_resume(void) } } -static int fan_read(char *p) +static int fan_read(struct seq_file *m) { - int len = 0; int rc; u8 status; unsigned int speed = 0; @@ -8127,7 +8106,7 @@ static int fan_read(char *p) if (rc < 0) return rc; - len += sprintf(p + len, "status:\t\t%s\n" + seq_printf(m, "status:\t\t%s\n" "level:\t\t%d\n", (status != 0) ? "enabled" : "disabled", status); break; @@ -8138,54 +8117,54 @@ static int fan_read(char *p) if (rc < 0) return rc; - len += sprintf(p + len, "status:\t\t%s\n", + seq_printf(m, "status:\t\t%s\n", (status != 0) ? "enabled" : "disabled"); rc = fan_get_speed(&speed); if (rc < 0) return rc; - len += sprintf(p + len, "speed:\t\t%d\n", speed); + seq_printf(m, "speed:\t\t%d\n", speed); if (status & TP_EC_FAN_FULLSPEED) /* Disengaged mode takes precedence */ - len += sprintf(p + len, "level:\t\tdisengaged\n"); + seq_printf(m, "level:\t\tdisengaged\n"); else if (status & TP_EC_FAN_AUTO) - len += sprintf(p + len, "level:\t\tauto\n"); + seq_printf(m, "level:\t\tauto\n"); else - len += sprintf(p + len, "level:\t\t%d\n", status); + seq_printf(m, "level:\t\t%d\n", status); break; case TPACPI_FAN_NONE: default: - len += sprintf(p + len, "status:\t\tnot supported\n"); + seq_printf(m, "status:\t\tnot supported\n"); } if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { - len += sprintf(p + len, "commands:\tlevel "); + seq_printf(m, "commands:\tlevel "); switch (fan_control_access_mode) { case TPACPI_FAN_WR_ACPI_SFAN: - len += sprintf(p + len, " ( is 0-7)\n"); + seq_printf(m, " ( is 0-7)\n"); break; default: - len += sprintf(p + len, " ( is 0-7, " + seq_printf(m, " ( is 0-7, " "auto, disengaged, full-speed)\n"); break; } } if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) - len += sprintf(p + len, "commands:\tenable, disable\n" + seq_printf(m, "commands:\tenable, disable\n" "commands:\twatchdog ( " "is 0 (off), 1-120 (seconds))\n"); if (fan_control_commands & TPACPI_FAN_CMD_SPEED) - len += sprintf(p + len, "commands:\tspeed " + seq_printf(m, "commands:\tspeed " " ( is 0-65535)\n"); - return len; + return 0; } static int fan_write_cmd_level(const char *cmd, int *rc) @@ -8472,19 +8451,19 @@ static int __init ibm_init(struct ibm_init_struct *iibm) "%s installed\n", ibm->name); if (ibm->read) { - entry = create_proc_entry(ibm->name, - S_IFREG | S_IRUGO | S_IWUSR, - proc_dir); + mode_t mode; + + mode = S_IRUGO; + if (ibm->write) + mode |= S_IWUSR; + entry = proc_create_data(ibm->name, mode, proc_dir, + &dispatch_proc_fops, ibm); if (!entry) { printk(TPACPI_ERR "unable to create proc entry %s\n", ibm->name); ret = -ENODEV; goto err_out; } - entry->data = ibm; - entry->read_proc = &dispatch_procfs_read; - if (ibm->write) - entry->write_proc = &dispatch_procfs_write; ibm->flags.proc_created = 1; } -- cgit v1.2.3 From 5d2eb14d36723eba0b31ae208bc346835751e944 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Tue, 15 Dec 2009 21:51:13 -0200 Subject: thinkpad-acpi: bump version to 0.24 Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- Documentation/laptops/thinkpad-acpi.txt | 4 ++-- drivers/platform/x86/thinkpad_acpi.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/platform') diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt index b4ed30cb1375..169091f75e6d 100644 --- a/Documentation/laptops/thinkpad-acpi.txt +++ b/Documentation/laptops/thinkpad-acpi.txt @@ -1,7 +1,7 @@ ThinkPad ACPI Extras Driver - Version 0.23 - April 10th, 2009 + Version 0.24 + December 11th, 2009 Borislav Deianov Henrique de Moraes Holschuh diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index c21c35e2dcc6..af2352517c99 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -21,7 +21,7 @@ * 02110-1301, USA. */ -#define TPACPI_VERSION "0.23" +#define TPACPI_VERSION "0.24" #define TPACPI_SYSFS_VERSION 0x020700 /* -- cgit v1.2.3 From 360657463679dee44f0b167ffa61f563b4fee101 Mon Sep 17 00:00:00 2001 From: Peter Feuerer Date: Tue, 17 Nov 2009 14:27:37 -0800 Subject: acerhdf: add new BIOS versions Added new BIOS versions for following netbooks: Acer 1410, Gateway LT31, Packard Bell DOA150. As the Gateway LT31 machines have different register values for setting and checking the off-state, the "cmd_off" variable has been splitted up to "cmd_off" and "chk_off". Signed-off-by: Peter Feuerer Cc: Borislav Petkov Cc: Andreas Mohr Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/platform/x86/acerhdf.c | 63 +++++++++++++++++++++++++----------------- 1 file changed, 37 insertions(+), 26 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c index ab64522aaa64..d8b4229108b8 100644 --- a/drivers/platform/x86/acerhdf.c +++ b/drivers/platform/x86/acerhdf.c @@ -52,7 +52,7 @@ */ #undef START_IN_KERNEL_MODE -#define DRV_VER "0.5.18" +#define DRV_VER "0.5.20" /* * According to the Atom N270 datasheet, @@ -112,12 +112,14 @@ module_param_string(force_product, force_product, 16, 0); MODULE_PARM_DESC(force_product, "Force BIOS product and omit BIOS check"); /* - * cmd_off: to switch the fan completely off / to check if the fan is off + * cmd_off: to switch the fan completely off + * chk_off: to check if the fan is off * cmd_auto: to set the BIOS in control of the fan. The BIOS regulates then * the fan speed depending on the temperature */ struct fancmd { u8 cmd_off; + u8 chk_off; u8 cmd_auto; }; @@ -134,32 +136,41 @@ struct bios_settings_t { /* Register addresses and values for different BIOS versions */ static const struct bios_settings_t bios_tbl[] = { /* AOA110 */ - {"Acer", "AOA110", "v0.3109", 0x55, 0x58, {0x1f, 0x00} }, - {"Acer", "AOA110", "v0.3114", 0x55, 0x58, {0x1f, 0x00} }, - {"Acer", "AOA110", "v0.3301", 0x55, 0x58, {0xaf, 0x00} }, - {"Acer", "AOA110", "v0.3304", 0x55, 0x58, {0xaf, 0x00} }, - {"Acer", "AOA110", "v0.3305", 0x55, 0x58, {0xaf, 0x00} }, - {"Acer", "AOA110", "v0.3307", 0x55, 0x58, {0xaf, 0x00} }, - {"Acer", "AOA110", "v0.3308", 0x55, 0x58, {0x21, 0x00} }, - {"Acer", "AOA110", "v0.3309", 0x55, 0x58, {0x21, 0x00} }, - {"Acer", "AOA110", "v0.3310", 0x55, 0x58, {0x21, 0x00} }, + {"Acer", "AOA110", "v0.3109", 0x55, 0x58, {0x1f, 0x1f, 0x00} }, + {"Acer", "AOA110", "v0.3114", 0x55, 0x58, {0x1f, 0x1f, 0x00} }, + {"Acer", "AOA110", "v0.3301", 0x55, 0x58, {0xaf, 0xaf, 0x00} }, + {"Acer", "AOA110", "v0.3304", 0x55, 0x58, {0xaf, 0xaf, 0x00} }, + {"Acer", "AOA110", "v0.3305", 0x55, 0x58, {0xaf, 0xaf, 0x00} }, + {"Acer", "AOA110", "v0.3307", 0x55, 0x58, {0xaf, 0xaf, 0x00} }, + {"Acer", "AOA110", "v0.3308", 0x55, 0x58, {0x21, 0x21, 0x00} }, + {"Acer", "AOA110", "v0.3309", 0x55, 0x58, {0x21, 0x21, 0x00} }, + {"Acer", "AOA110", "v0.3310", 0x55, 0x58, {0x21, 0x21, 0x00} }, /* AOA150 */ - {"Acer", "AOA150", "v0.3114", 0x55, 0x58, {0x20, 0x00} }, - {"Acer", "AOA150", "v0.3301", 0x55, 0x58, {0x20, 0x00} }, - {"Acer", "AOA150", "v0.3304", 0x55, 0x58, {0x20, 0x00} }, - {"Acer", "AOA150", "v0.3305", 0x55, 0x58, {0x20, 0x00} }, - {"Acer", "AOA150", "v0.3307", 0x55, 0x58, {0x20, 0x00} }, - {"Acer", "AOA150", "v0.3308", 0x55, 0x58, {0x20, 0x00} }, - {"Acer", "AOA150", "v0.3309", 0x55, 0x58, {0x20, 0x00} }, - {"Acer", "AOA150", "v0.3310", 0x55, 0x58, {0x20, 0x00} }, + {"Acer", "AOA150", "v0.3114", 0x55, 0x58, {0x20, 0x20, 0x00} }, + {"Acer", "AOA150", "v0.3301", 0x55, 0x58, {0x20, 0x20, 0x00} }, + {"Acer", "AOA150", "v0.3304", 0x55, 0x58, {0x20, 0x20, 0x00} }, + {"Acer", "AOA150", "v0.3305", 0x55, 0x58, {0x20, 0x20, 0x00} }, + {"Acer", "AOA150", "v0.3307", 0x55, 0x58, {0x20, 0x20, 0x00} }, + {"Acer", "AOA150", "v0.3308", 0x55, 0x58, {0x20, 0x20, 0x00} }, + {"Acer", "AOA150", "v0.3309", 0x55, 0x58, {0x20, 0x20, 0x00} }, + {"Acer", "AOA150", "v0.3310", 0x55, 0x58, {0x20, 0x20, 0x00} }, + /* Acer 1410 */ + {"Acer", "Aspire 1410", "v0.3120", 0x55, 0x58, {0x9e, 0x9e, 0x00} }, /* special BIOS / other */ - {"Gateway", "AOA110", "v0.3103", 0x55, 0x58, {0x21, 0x00} }, - {"Gateway", "AOA150", "v0.3103", 0x55, 0x58, {0x20, 0x00} }, - {"Packard Bell", "DOA150", "v0.3104", 0x55, 0x58, {0x21, 0x00} }, - {"Packard Bell", "AOA110", "v0.3105", 0x55, 0x58, {0x21, 0x00} }, - {"Packard Bell", "AOA150", "v0.3105", 0x55, 0x58, {0x20, 0x00} }, + {"Gateway", "AOA110", "v0.3103", 0x55, 0x58, {0x21, 0x21, 0x00} }, + {"Gateway", "AOA150", "v0.3103", 0x55, 0x58, {0x20, 0x20, 0x00} }, + {"Gateway ", "LT31 ", "v1.3103 ", 0x55, 0x58, + {0x10, 0x0f, 0x00} }, + {"Gateway ", "LT31 ", "v1.3201 ", 0x55, 0x58, + {0x10, 0x0f, 0x00} }, + {"Gateway ", "LT31 ", "v1.3302 ", 0x55, 0x58, + {0x10, 0x0f, 0x00} }, + {"Packard Bell", "DOA150", "v0.3104", 0x55, 0x58, {0x21, 0x21, 0x00} }, + {"Packard Bell", "DOA150", "v0.3105", 0x55, 0x58, {0x20, 0x20, 0x00} }, + {"Packard Bell", "AOA110", "v0.3105", 0x55, 0x58, {0x21, 0x21, 0x00} }, + {"Packard Bell", "AOA150", "v0.3105", 0x55, 0x58, {0x20, 0x20, 0x00} }, /* pewpew-terminator */ - {"", "", "", 0, 0, {0, 0} } + {"", "", "", 0, 0, {0, 0, 0} } }; static const struct bios_settings_t *bios_cfg __read_mostly; @@ -183,7 +194,7 @@ static int acerhdf_get_fanstate(int *state) if (ec_read(bios_cfg->fanreg, &fan)) return -EINVAL; - if (fan != bios_cfg->cmd.cmd_off) + if (fan != bios_cfg->cmd.chk_off) *state = ACERHDF_FAN_AUTO; else *state = ACERHDF_FAN_OFF; -- cgit v1.2.3 From 42b4e9ee3d1d3b691bcae37f217f08740320c58c Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Wed, 16 Dec 2009 12:08:15 -0500 Subject: Toshiba Bluetooth Enabling driver (RFKill handler v3) This patch adds support for the ACPI events generated by the RFKill switch on modern Toshiba laptops, and re-enables the Bluetooth USB device when the switch is flipped back to the 'on' position. The RFKill switch brute force pulls out the USB device when flipped to 'off', but it doesn't automatically re-enable it. Without this driver, the Bluetooth is gone until after a reboot on my Portege R500. Signed-off-by: Jes Sorensen Signed-off-by: Len Brown --- drivers/platform/x86/Kconfig | 15 ++++ drivers/platform/x86/Makefile | 1 + drivers/platform/x86/toshiba_bluetooth.c | 144 +++++++++++++++++++++++++++++++ 3 files changed, 160 insertions(+) create mode 100644 drivers/platform/x86/toshiba_bluetooth.c (limited to 'drivers/platform') diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 55ca39dea42e..8dd2b3a4c475 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -435,4 +435,19 @@ config ACPI_TOSHIBA If you have a legacy free Toshiba laptop (such as the Libretto L1 series), say Y. + +config TOSHIBA_BT_RFKILL + tristate "Toshiba Bluetooth RFKill switch support" + depends on ACPI + ---help--- + This driver adds support for Bluetooth events for the RFKill + switch on modern Toshiba laptops with full ACPI support and + an RFKill switch. + + This driver handles RFKill events for the TOS6205 Bluetooth, + and re-enables it when the switch is set back to the 'on' + position. + + If you have a modern Toshiba laptop with a Bluetooth and an + RFKill switch (such as the Portege R500), say Y. endif # X86_PLATFORM_DEVICES diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile index d1c16210a512..394258bd77c0 100644 --- a/drivers/platform/x86/Makefile +++ b/drivers/platform/x86/Makefile @@ -21,3 +21,4 @@ obj-$(CONFIG_ACPI_WMI) += wmi.o obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o obj-$(CONFIG_TOPSTAR_LAPTOP) += topstar-laptop.o obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o +obj-$(CONFIG_TOSHIBA_BT_RFKILL) += toshiba_bluetooth.o diff --git a/drivers/platform/x86/toshiba_bluetooth.c b/drivers/platform/x86/toshiba_bluetooth.c new file mode 100644 index 000000000000..a350418e87ea --- /dev/null +++ b/drivers/platform/x86/toshiba_bluetooth.c @@ -0,0 +1,144 @@ +/* + * Toshiba Bluetooth Enable Driver + * + * Copyright (C) 2009 Jes Sorensen + * + * Thanks to Matthew Garrett for background info on ACPI innards which + * normal people aren't meant to understand :-) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Note the Toshiba Bluetooth RFKill switch seems to be a strange + * fish. It only provides a BT event when the switch is flipped to + * the 'on' position. When flipping it to 'off', the USB device is + * simply pulled away underneath us, without any BT event being + * delivered. + */ + +#include +#include +#include +#include +#include +#include + +MODULE_AUTHOR("Jes Sorensen "); +MODULE_DESCRIPTION("Toshiba Laptop ACPI Bluetooth Enable Driver"); +MODULE_LICENSE("GPL"); + + +static int toshiba_bt_rfkill_add(struct acpi_device *device); +static int toshiba_bt_rfkill_remove(struct acpi_device *device, int type); +static void toshiba_bt_rfkill_notify(struct acpi_device *device, u32 event); +static int toshiba_bt_resume(struct acpi_device *device); + +static const struct acpi_device_id bt_device_ids[] = { + { "TOS6205", 0}, + { "", 0}, +}; +MODULE_DEVICE_TABLE(acpi, bt_device_ids); + +static struct acpi_driver toshiba_bt_rfkill_driver = { + .name = "Toshiba BT", + .class = "Toshiba", + .ids = bt_device_ids, + .ops = { + .add = toshiba_bt_rfkill_add, + .remove = toshiba_bt_rfkill_remove, + .notify = toshiba_bt_rfkill_notify, + .resume = toshiba_bt_resume, + }, + .owner = THIS_MODULE, +}; + + +static int toshiba_bluetooth_enable(acpi_handle handle) +{ + acpi_status res1, res2; + acpi_integer result; + + /* + * Query ACPI to verify RFKill switch is set to 'on'. + * If not, we return silently, no need to report it as + * an error. + */ + res1 = acpi_evaluate_integer(handle, "BTST", NULL, &result); + if (ACPI_FAILURE(res1)) + return res1; + if (!(result & 0x01)) + return 0; + + printk(KERN_INFO "toshiba_bluetooth: Re-enabling Toshiba Bluetooth\n"); + res1 = acpi_evaluate_object(handle, "AUSB", NULL, NULL); + res2 = acpi_evaluate_object(handle, "BTPO", NULL, NULL); + if (!ACPI_FAILURE(res1) || !ACPI_FAILURE(res2)) + return 0; + + printk(KERN_WARNING "toshiba_bluetooth: Failed to re-enable " + "Toshiba Bluetooth\n"); + + return -ENODEV; +} + +static void toshiba_bt_rfkill_notify(struct acpi_device *device, u32 event) +{ + toshiba_bluetooth_enable(device->handle); +} + +static int toshiba_bt_resume(struct acpi_device *device) +{ + return toshiba_bluetooth_enable(device->handle); +} + +static int toshiba_bt_rfkill_add(struct acpi_device *device) +{ + acpi_status status; + acpi_integer bt_present; + int result = -ENODEV; + + /* + * Some Toshiba laptops may have a fake TOS6205 device in + * their ACPI BIOS, so query the _STA method to see if there + * is really anything there, before trying to enable it. + */ + status = acpi_evaluate_integer(device->handle, "_STA", NULL, + &bt_present); + + if (!ACPI_FAILURE(status) && bt_present) { + printk(KERN_INFO "Detected Toshiba ACPI Bluetooth device - " + "installing RFKill handler\n"); + result = toshiba_bluetooth_enable(device->handle); + } + + return result; +} + +static int __init toshiba_bt_rfkill_init(void) +{ + int result; + + result = acpi_bus_register_driver(&toshiba_bt_rfkill_driver); + if (result < 0) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Error registering driver\n")); + return result; + } + + return 0; +} + +static int toshiba_bt_rfkill_remove(struct acpi_device *device, int type) +{ + /* clean up */ + return 0; +} + +static void __exit toshiba_bt_rfkill_exit(void) +{ + acpi_bus_unregister_driver(&toshiba_bt_rfkill_driver); +} + +module_init(toshiba_bt_rfkill_init); +module_exit(toshiba_bt_rfkill_exit); -- cgit v1.2.3 From d12d8baff927a31b7e13b72ed9549be6f296a6ef Mon Sep 17 00:00:00 2001 From: Thomas Renninger Date: Thu, 10 Dec 2009 14:18:13 +0100 Subject: X86 drivers: Introduce msi-wmi driver This driver serves backlight (including switching) and volume up/down keys for MSI machines providing a specific wmi interface: 551A1F84-FBDD-4125-91DB-3EA8F44F1D45 B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2 Signed-off-by: Thomas Renninger CC: Carlos Corbacho CC: Matthew Garrett Tested-by: Matt Chen Reviewed-by: Anisse Astier Signed-off-by: Len Brown --- drivers/platform/x86/Kconfig | 10 ++ drivers/platform/x86/Makefile | 1 + drivers/platform/x86/msi-wmi.c | 369 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 380 insertions(+) create mode 100644 drivers/platform/x86/msi-wmi.c (limited to 'drivers/platform') diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 55ca39dea42e..98ec6bd9226e 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -365,6 +365,16 @@ config ACPI_WMI It is safe to enable this driver even if your DSDT doesn't define any ACPI-WMI devices. +config MSI_WMI + tristate "MSI WMI extras" + depends on ACPI_WMI + depends on INPUT + help + Say Y here if you want to support WMI-based hotkeys on MSI laptops. + + To compile this driver as a module, choose M here: the module will + be called msi-wmi. + config ACPI_ASUS tristate "ASUS/Medion Laptop Extras (DEPRECATED)" depends on ACPI diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile index d1c16210a512..13aa37310f33 100644 --- a/drivers/platform/x86/Makefile +++ b/drivers/platform/x86/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_FUJITSU_LAPTOP) += fujitsu-laptop.o obj-$(CONFIG_PANASONIC_LAPTOP) += panasonic-laptop.o obj-$(CONFIG_INTEL_MENLOW) += intel_menlow.o obj-$(CONFIG_ACPI_WMI) += wmi.o +obj-$(CONFIG_MSI_WMI) += msi-wmi.o obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o obj-$(CONFIG_TOPSTAR_LAPTOP) += topstar-laptop.o obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c new file mode 100644 index 000000000000..7e0dab659752 --- /dev/null +++ b/drivers/platform/x86/msi-wmi.c @@ -0,0 +1,369 @@ +/* + * MSI WMI hotkeys + * + * Copyright (C) 2009 Novell + * + * Most stuff taken over from hp-wmi + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +MODULE_AUTHOR("Thomas Renninger "); +MODULE_DESCRIPTION("MSI laptop WMI hotkeys driver"); +MODULE_LICENSE("GPL"); + +static int debug; +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Set this to 1 to let the driver be more verbose"); + +MODULE_ALIAS("wmi:551A1F84-FBDD-4125-91DB-3EA8F44F1D45"); +MODULE_ALIAS("wmi:B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"); + +/* Temporary workaround until the WMI sysfs interface goes in + { "svn", DMI_SYS_VENDOR }, + { "pn", DMI_PRODUCT_NAME }, + { "pvr", DMI_PRODUCT_VERSION }, + { "rvn", DMI_BOARD_VENDOR }, + { "rn", DMI_BOARD_NAME }, +*/ + +MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-6638:*"); + +#define DRV_NAME "msi-wmi" +#define DRV_PFX DRV_NAME ": " + +#define MSIWMI_BIOS_GUID "551A1F84-FBDD-4125-91DB-3EA8F44F1D45" +#define MSIWMI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2" + +#define dprintk(msg...) do { \ + if (debug) \ + printk(KERN_INFO DRV_PFX msg); \ + } while (0) + +struct key_entry { + char type; /* See KE_* below */ + u16 code; + u16 keycode; + int instance; + ktime_t last_pressed; +}; + +/* + * KE_KEY the only used key type, but keep this, others might also + * show up in the future. Compare with hp-wmi.c + */ +enum { KE_KEY, KE_END }; + +static struct key_entry msi_wmi_keymap[] = { + { KE_KEY, 0xd0, KEY_BRIGHTNESSUP, 0, {0, } }, + { KE_KEY, 0xd1, KEY_BRIGHTNESSDOWN, 1, {0, } }, + { KE_KEY, 0xd2, KEY_VOLUMEUP, 2, {0, } }, + { KE_KEY, 0xd3, KEY_VOLUMEDOWN, 3, {0, } }, + { KE_END, 0} +}; + +struct backlight_device *backlight; + +static int backlight_map[] = { 0x00, 0x33, 0x66, 0x99, 0xCC, 0xFF }; + +static struct input_dev *msi_wmi_input_dev; + +static int msi_wmi_query_block(int instance, int *ret) +{ + acpi_status status; + union acpi_object *obj; + + struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; + + status = wmi_query_block(MSIWMI_BIOS_GUID, instance, &output); + + obj = output.pointer; + + if (!obj || obj->type != ACPI_TYPE_INTEGER) { + if (obj) { + printk(KERN_ERR DRV_PFX "query block returned object " + "type: %d - buffer length:%d\n", obj->type, + obj->type == ACPI_TYPE_BUFFER ? + obj->buffer.length : 0); + } + kfree(obj); + return -EINVAL; + } + *ret = obj->integer.value; + kfree(obj); + return 0; +} + +static int msi_wmi_set_block(int instance, int value) +{ + acpi_status status; + + struct acpi_buffer input = { sizeof(int), &value }; + + dprintk("Going to set block of instance: %d - value: %d\n", + instance, value); + + status = wmi_set_block(MSIWMI_BIOS_GUID, instance, &input); + + return ACPI_SUCCESS(status) ? 0 : 1; +} + +static int bl_get(struct backlight_device *bd) +{ + int level, err, ret = 0; + + /* Instance 1 is "get backlight", cmp with DSDT */ + err = msi_wmi_query_block(1, &ret); + if (err) + printk(KERN_ERR DRV_PFX "Could not query backlight: %d\n", err); + dprintk("Get: Query block returned: %d\n", ret); + for (level = 0; level < ARRAY_SIZE(backlight_map); level++) { + if (backlight_map[level] == ret) { + dprintk("Current backlight level: 0x%X - index: %d\n", + backlight_map[level], level); + break; + } + } + if (level == ARRAY_SIZE(backlight_map)) { + printk(KERN_ERR DRV_PFX "get: Invalid brightness value: 0x%X\n", + ret); + return -EINVAL; + } + return level; +} + +static int bl_set_status(struct backlight_device *bd) +{ + int bright = bd->props.brightness; + if (bright >= ARRAY_SIZE(backlight_map) || bright < 0) + return -EINVAL; + + /* Instance 0 is "set backlight" */ + return msi_wmi_set_block(0, backlight_map[bright]); +} + +static struct backlight_ops msi_backlight_ops = { + .get_brightness = bl_get, + .update_status = bl_set_status, +}; + +static struct key_entry *msi_wmi_get_entry_by_scancode(int code) +{ + struct key_entry *key; + + for (key = msi_wmi_keymap; key->type != KE_END; key++) + if (code == key->code) + return key; + + return NULL; +} + +static struct key_entry *msi_wmi_get_entry_by_keycode(int keycode) +{ + struct key_entry *key; + + for (key = msi_wmi_keymap; key->type != KE_END; key++) + if (key->type == KE_KEY && keycode == key->keycode) + return key; + + return NULL; +} + +static int msi_wmi_getkeycode(struct input_dev *dev, int scancode, int *keycode) +{ + struct key_entry *key = msi_wmi_get_entry_by_scancode(scancode); + + if (key && key->type == KE_KEY) { + *keycode = key->keycode; + return 0; + } + + return -EINVAL; +} + +static int msi_wmi_setkeycode(struct input_dev *dev, int scancode, int keycode) +{ + struct key_entry *key; + int old_keycode; + + if (keycode < 0 || keycode > KEY_MAX) + return -EINVAL; + + key = msi_wmi_get_entry_by_scancode(scancode); + if (key && key->type == KE_KEY) { + old_keycode = key->keycode; + key->keycode = keycode; + set_bit(keycode, dev->keybit); + if (!msi_wmi_get_entry_by_keycode(old_keycode)) + clear_bit(old_keycode, dev->keybit); + return 0; + } + + return -EINVAL; +} + +static void msi_wmi_notify(u32 value, void *context) +{ + struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; + static struct key_entry *key; + union acpi_object *obj; + ktime_t cur; + + wmi_get_event_data(value, &response); + + obj = (union acpi_object *)response.pointer; + + if (obj && obj->type == ACPI_TYPE_INTEGER) { + int eventcode = obj->integer.value; + dprintk("Eventcode: 0x%x\n", eventcode); + key = msi_wmi_get_entry_by_scancode(eventcode); + if (key) { + cur = ktime_get_real(); + /* Ignore event if the same event happened in a 50 ms + timeframe -> Key press may result in 10-20 GPEs */ + if (ktime_to_us(ktime_sub(cur, key->last_pressed)) + < 1000 * 50) { + dprintk("Suppressed key event 0x%X - " + "Last press was %lld us ago\n", + key->code, + ktime_to_us(ktime_sub(cur, + key->last_pressed))); + return; + } + key->last_pressed = cur; + + switch (key->type) { + case KE_KEY: + /* Brightness is served via acpi video driver */ + if (!backlight && + (key->keycode == KEY_BRIGHTNESSUP || + key->keycode == KEY_BRIGHTNESSDOWN)) + break; + + dprintk("Send key: 0x%X - " + "Input layer keycode: %d\n", key->code, + key->keycode); + input_report_key(msi_wmi_input_dev, + key->keycode, 1); + input_sync(msi_wmi_input_dev); + input_report_key(msi_wmi_input_dev, + key->keycode, 0); + input_sync(msi_wmi_input_dev); + break; + } + } else + printk(KERN_INFO "Unknown key pressed - %x\n", + eventcode); + } else + printk(KERN_INFO DRV_PFX "Unknown event received\n"); + kfree(response.pointer); +} + +static int __init msi_wmi_input_setup(void) +{ + struct key_entry *key; + int err; + + msi_wmi_input_dev = input_allocate_device(); + + msi_wmi_input_dev->name = "MSI WMI hotkeys"; + msi_wmi_input_dev->phys = "wmi/input0"; + msi_wmi_input_dev->id.bustype = BUS_HOST; + msi_wmi_input_dev->getkeycode = msi_wmi_getkeycode; + msi_wmi_input_dev->setkeycode = msi_wmi_setkeycode; + + for (key = msi_wmi_keymap; key->type != KE_END; key++) { + switch (key->type) { + case KE_KEY: + set_bit(EV_KEY, msi_wmi_input_dev->evbit); + set_bit(key->keycode, msi_wmi_input_dev->keybit); + break; + } + } + + err = input_register_device(msi_wmi_input_dev); + + if (err) { + input_free_device(msi_wmi_input_dev); + return err; + } + + return 0; +} + +static int __init msi_wmi_init(void) +{ + int err; + + if (wmi_has_guid(MSIWMI_EVENT_GUID)) { + err = wmi_install_notify_handler(MSIWMI_EVENT_GUID, + msi_wmi_notify, NULL); + if (err) + return -EINVAL; + + err = msi_wmi_input_setup(); + if (err) { + wmi_remove_notify_handler(MSIWMI_EVENT_GUID); + return -EINVAL; + } + + if (!acpi_video_backlight_support()) { + backlight = backlight_device_register(DRV_NAME, + NULL, NULL, &msi_backlight_ops); + if (IS_ERR(backlight)) { + wmi_remove_notify_handler(MSIWMI_EVENT_GUID); + input_unregister_device(msi_wmi_input_dev); + return -EINVAL; + } + + backlight->props.max_brightness = ARRAY_SIZE(backlight_map) - 1; + err = bl_get(NULL); + if (err < 0) { + wmi_remove_notify_handler(MSIWMI_EVENT_GUID); + input_unregister_device(msi_wmi_input_dev); + backlight_device_unregister(backlight); + return -EINVAL; + } + backlight->props.brightness = err; + } + } + printk(KERN_INFO DRV_PFX "Event handler installed\n"); + return 0; +} + +static void __exit msi_wmi_exit(void) +{ + if (wmi_has_guid(MSIWMI_EVENT_GUID)) { + wmi_remove_notify_handler(MSIWMI_EVENT_GUID); + input_unregister_device(msi_wmi_input_dev); + backlight_device_unregister(backlight); + } +} + +module_init(msi_wmi_init); +module_exit(msi_wmi_exit); -- cgit v1.2.3 From addd65aac7bcfed7348048b3ce24774718fc44c3 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Thu, 10 Dec 2009 14:18:14 +0100 Subject: msi-wmi: remove useless includes Signed-off-by: Anisse Astier Signed-off-by: Len Brown --- drivers/platform/x86/msi-wmi.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c index 7e0dab659752..fb988d8f4267 100644 --- a/drivers/platform/x86/msi-wmi.c +++ b/drivers/platform/x86/msi-wmi.c @@ -23,14 +23,8 @@ #include -#include -#include -#include #include -#include #include -#include -#include #include MODULE_AUTHOR("Thomas Renninger "); -- cgit v1.2.3 From 46b51eb9e14afb3bde4bc2fe3bbc22ce012647d4 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Thu, 10 Dec 2009 14:18:15 +0100 Subject: msi-wmi: rework init There should be less code duplication with usage of gotos Driver won't load if there's no hardware to control Safer error handling at input driver allocation Signed-off-by: Anisse Astier Signed-off-by: Len Brown --- drivers/platform/x86/msi-wmi.c | 64 +++++++++++++++++++++++------------------- 1 file changed, 35 insertions(+), 29 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c index fb988d8f4267..dcb048c0793f 100644 --- a/drivers/platform/x86/msi-wmi.c +++ b/drivers/platform/x86/msi-wmi.c @@ -284,6 +284,8 @@ static int __init msi_wmi_input_setup(void) int err; msi_wmi_input_dev = input_allocate_device(); + if (!msi_wmi_input_dev) + return -ENOMEM; msi_wmi_input_dev->name = "MSI WMI hotkeys"; msi_wmi_input_dev->phys = "wmi/input0"; @@ -314,40 +316,44 @@ static int __init msi_wmi_init(void) { int err; - if (wmi_has_guid(MSIWMI_EVENT_GUID)) { - err = wmi_install_notify_handler(MSIWMI_EVENT_GUID, - msi_wmi_notify, NULL); - if (err) - return -EINVAL; - - err = msi_wmi_input_setup(); - if (err) { - wmi_remove_notify_handler(MSIWMI_EVENT_GUID); - return -EINVAL; - } + if (!wmi_has_guid(MSIWMI_EVENT_GUID)) { + printk(KERN_ERR + "This machine doesn't have MSI-hotkeys through WMI\n"); + return -ENODEV; + } + err = wmi_install_notify_handler(MSIWMI_EVENT_GUID, + msi_wmi_notify, NULL); + if (err) + return -EINVAL; - if (!acpi_video_backlight_support()) { - backlight = backlight_device_register(DRV_NAME, - NULL, NULL, &msi_backlight_ops); - if (IS_ERR(backlight)) { - wmi_remove_notify_handler(MSIWMI_EVENT_GUID); - input_unregister_device(msi_wmi_input_dev); - return -EINVAL; - } + err = msi_wmi_input_setup(); + if (err) + goto err_uninstall_notifier; - backlight->props.max_brightness = ARRAY_SIZE(backlight_map) - 1; - err = bl_get(NULL); - if (err < 0) { - wmi_remove_notify_handler(MSIWMI_EVENT_GUID); - input_unregister_device(msi_wmi_input_dev); - backlight_device_unregister(backlight); - return -EINVAL; - } - backlight->props.brightness = err; - } + if (!acpi_video_backlight_support()) { + backlight = backlight_device_register(DRV_NAME, + NULL, NULL, &msi_backlight_ops); + if (IS_ERR(backlight)) + goto err_free_input; + + backlight->props.max_brightness = ARRAY_SIZE(backlight_map) - 1; + err = bl_get(NULL); + if (err < 0) + goto err_free_backlight; + + backlight->props.brightness = err; } printk(KERN_INFO DRV_PFX "Event handler installed\n"); + return 0; + +err_free_backlight: + backlight_device_unregister(backlight); +err_free_input: + input_unregister_device(msi_wmi_input_dev); +err_uninstall_notifier: + wmi_remove_notify_handler(MSIWMI_EVENT_GUID); + return err; } static void __exit msi_wmi_exit(void) -- cgit v1.2.3 From 822ddc042a12aa2a8c2030ad4ebc660bc0e66c3f Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Thu, 10 Dec 2009 14:18:16 +0100 Subject: msi-wmi: remove custom runtime debug implementation Rely on DYNAMIC_DEBUG instead if needed Signed-off-by: Anisse Astier Signed-off-by: Len Brown --- drivers/platform/x86/msi-wmi.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c index dcb048c0793f..75e422b27531 100644 --- a/drivers/platform/x86/msi-wmi.c +++ b/drivers/platform/x86/msi-wmi.c @@ -31,10 +31,6 @@ MODULE_AUTHOR("Thomas Renninger "); MODULE_DESCRIPTION("MSI laptop WMI hotkeys driver"); MODULE_LICENSE("GPL"); -static int debug; -module_param(debug, int, 0); -MODULE_PARM_DESC(debug, "Set this to 1 to let the driver be more verbose"); - MODULE_ALIAS("wmi:551A1F84-FBDD-4125-91DB-3EA8F44F1D45"); MODULE_ALIAS("wmi:B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"); @@ -54,10 +50,7 @@ MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-6638:*"); #define MSIWMI_BIOS_GUID "551A1F84-FBDD-4125-91DB-3EA8F44F1D45" #define MSIWMI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2" -#define dprintk(msg...) do { \ - if (debug) \ - printk(KERN_INFO DRV_PFX msg); \ - } while (0) +#define dprintk(msg...) pr_debug(DRV_PFX msg) struct key_entry { char type; /* See KE_* below */ @@ -343,7 +336,7 @@ static int __init msi_wmi_init(void) backlight->props.brightness = err; } - printk(KERN_INFO DRV_PFX "Event handler installed\n"); + dprintk("Event handler installed\n"); return 0; -- cgit v1.2.3 From 977f9b921c82726745a8b7281dc679edb32b4906 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Thu, 10 Dec 2009 14:18:17 +0100 Subject: msi-wmi: remove unused field 'instance' in key_entry structure Signed-off-by: Anisse Astier Signed-off-by: Len Brown --- drivers/platform/x86/msi-wmi.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c index 75e422b27531..d7579359a2c5 100644 --- a/drivers/platform/x86/msi-wmi.c +++ b/drivers/platform/x86/msi-wmi.c @@ -56,7 +56,6 @@ struct key_entry { char type; /* See KE_* below */ u16 code; u16 keycode; - int instance; ktime_t last_pressed; }; @@ -67,10 +66,10 @@ struct key_entry { enum { KE_KEY, KE_END }; static struct key_entry msi_wmi_keymap[] = { - { KE_KEY, 0xd0, KEY_BRIGHTNESSUP, 0, {0, } }, - { KE_KEY, 0xd1, KEY_BRIGHTNESSDOWN, 1, {0, } }, - { KE_KEY, 0xd2, KEY_VOLUMEUP, 2, {0, } }, - { KE_KEY, 0xd3, KEY_VOLUMEDOWN, 3, {0, } }, + { KE_KEY, 0xd0, KEY_BRIGHTNESSUP, {0, } }, + { KE_KEY, 0xd1, KEY_BRIGHTNESSDOWN, {0, } }, + { KE_KEY, 0xd2, KEY_VOLUMEUP, {0, } }, + { KE_KEY, 0xd3, KEY_VOLUMEDOWN, {0, } }, { KE_END, 0} }; -- cgit v1.2.3 From d607af93006594f7da1d4b7d44724c5308f4e892 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Thu, 10 Dec 2009 14:18:18 +0100 Subject: msi-wmi: replace one-condition switch-case with if statement Signed-off-by: Anisse Astier Signed-off-by: Len Brown --- drivers/platform/x86/msi-wmi.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c index d7579359a2c5..2c2afc1828b8 100644 --- a/drivers/platform/x86/msi-wmi.c +++ b/drivers/platform/x86/msi-wmi.c @@ -243,14 +243,10 @@ static void msi_wmi_notify(u32 value, void *context) } key->last_pressed = cur; - switch (key->type) { - case KE_KEY: - /* Brightness is served via acpi video driver */ - if (!backlight && - (key->keycode == KEY_BRIGHTNESSUP || - key->keycode == KEY_BRIGHTNESSDOWN)) - break; - + if (key->type == KE_KEY && + /* Brightness is served via acpi video driver */ + (backlight || (key->keycode != KEY_BRIGHTNESSUP && + key->keycode != KEY_BRIGHTNESSDOWN))) { dprintk("Send key: 0x%X - " "Input layer keycode: %d\n", key->code, key->keycode); @@ -260,7 +256,6 @@ static void msi_wmi_notify(u32 value, void *context) input_report_key(msi_wmi_input_dev, key->keycode, 0); input_sync(msi_wmi_input_dev); - break; } } else printk(KERN_INFO "Unknown key pressed - %x\n", -- cgit v1.2.3 From c30116c6f0d26cd6e46dfa578163d573ef4730b2 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Thu, 10 Dec 2009 14:18:19 +0100 Subject: msi-wmi: switch to using input sparse keymap library Signed-off-by: Anisse Astier Signed-off-by: Len Brown --- drivers/platform/x86/Kconfig | 1 + drivers/platform/x86/msi-wmi.c | 134 ++++++++++------------------------------- 2 files changed, 33 insertions(+), 102 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 98ec6bd9226e..1f82d6df96e1 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -369,6 +369,7 @@ config MSI_WMI tristate "MSI WMI extras" depends on ACPI_WMI depends on INPUT + select INPUT_SPARSEKMAP help Say Y here if you want to support WMI-based hotkeys on MSI laptops. diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c index 2c2afc1828b8..e25b80c530f7 100644 --- a/drivers/platform/x86/msi-wmi.c +++ b/drivers/platform/x86/msi-wmi.c @@ -21,9 +21,9 @@ */ - #include #include +#include #include #include @@ -52,26 +52,15 @@ MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-6638:*"); #define dprintk(msg...) pr_debug(DRV_PFX msg) -struct key_entry { - char type; /* See KE_* below */ - u16 code; - u16 keycode; - ktime_t last_pressed; -}; - -/* - * KE_KEY the only used key type, but keep this, others might also - * show up in the future. Compare with hp-wmi.c - */ -enum { KE_KEY, KE_END }; - +#define KEYCODE_BASE 0xD0 static struct key_entry msi_wmi_keymap[] = { - { KE_KEY, 0xd0, KEY_BRIGHTNESSUP, {0, } }, - { KE_KEY, 0xd1, KEY_BRIGHTNESSDOWN, {0, } }, - { KE_KEY, 0xd2, KEY_VOLUMEUP, {0, } }, - { KE_KEY, 0xd3, KEY_VOLUMEDOWN, {0, } }, + { KE_KEY, KEYCODE_BASE, {KEY_BRIGHTNESSUP} }, + { KE_KEY, KEYCODE_BASE + 1, {KEY_BRIGHTNESSDOWN} }, + { KE_KEY, KEYCODE_BASE + 2, {KEY_VOLUMEUP} }, + { KE_KEY, KEYCODE_BASE + 3, {KEY_VOLUMEDOWN} }, { KE_END, 0} }; +static ktime_t last_pressed[ARRAY_SIZE(msi_wmi_keymap) - 1]; struct backlight_device *backlight; @@ -158,61 +147,6 @@ static struct backlight_ops msi_backlight_ops = { .update_status = bl_set_status, }; -static struct key_entry *msi_wmi_get_entry_by_scancode(int code) -{ - struct key_entry *key; - - for (key = msi_wmi_keymap; key->type != KE_END; key++) - if (code == key->code) - return key; - - return NULL; -} - -static struct key_entry *msi_wmi_get_entry_by_keycode(int keycode) -{ - struct key_entry *key; - - for (key = msi_wmi_keymap; key->type != KE_END; key++) - if (key->type == KE_KEY && keycode == key->keycode) - return key; - - return NULL; -} - -static int msi_wmi_getkeycode(struct input_dev *dev, int scancode, int *keycode) -{ - struct key_entry *key = msi_wmi_get_entry_by_scancode(scancode); - - if (key && key->type == KE_KEY) { - *keycode = key->keycode; - return 0; - } - - return -EINVAL; -} - -static int msi_wmi_setkeycode(struct input_dev *dev, int scancode, int keycode) -{ - struct key_entry *key; - int old_keycode; - - if (keycode < 0 || keycode > KEY_MAX) - return -EINVAL; - - key = msi_wmi_get_entry_by_scancode(scancode); - if (key && key->type == KE_KEY) { - old_keycode = key->keycode; - key->keycode = keycode; - set_bit(keycode, dev->keybit); - if (!msi_wmi_get_entry_by_keycode(old_keycode)) - clear_bit(old_keycode, dev->keybit); - return 0; - } - - return -EINVAL; -} - static void msi_wmi_notify(u32 value, void *context) { struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; @@ -227,21 +161,22 @@ static void msi_wmi_notify(u32 value, void *context) if (obj && obj->type == ACPI_TYPE_INTEGER) { int eventcode = obj->integer.value; dprintk("Eventcode: 0x%x\n", eventcode); - key = msi_wmi_get_entry_by_scancode(eventcode); + key = sparse_keymap_entry_from_scancode(msi_wmi_input_dev, + eventcode); if (key) { + ktime_t diff; cur = ktime_get_real(); + diff = ktime_sub(cur, last_pressed[key->code - + KEYCODE_BASE]); /* Ignore event if the same event happened in a 50 ms timeframe -> Key press may result in 10-20 GPEs */ - if (ktime_to_us(ktime_sub(cur, key->last_pressed)) - < 1000 * 50) { + if (ktime_to_us(diff) < 1000 * 50) { dprintk("Suppressed key event 0x%X - " "Last press was %lld us ago\n", - key->code, - ktime_to_us(ktime_sub(cur, - key->last_pressed))); + key->code, ktime_to_us(diff)); return; } - key->last_pressed = cur; + last_pressed[key->code - KEYCODE_BASE] = cur; if (key->type == KE_KEY && /* Brightness is served via acpi video driver */ @@ -250,12 +185,8 @@ static void msi_wmi_notify(u32 value, void *context) dprintk("Send key: 0x%X - " "Input layer keycode: %d\n", key->code, key->keycode); - input_report_key(msi_wmi_input_dev, - key->keycode, 1); - input_sync(msi_wmi_input_dev); - input_report_key(msi_wmi_input_dev, - key->keycode, 0); - input_sync(msi_wmi_input_dev); + sparse_keymap_report_entry(msi_wmi_input_dev, + key, 1, true); } } else printk(KERN_INFO "Unknown key pressed - %x\n", @@ -267,7 +198,6 @@ static void msi_wmi_notify(u32 value, void *context) static int __init msi_wmi_input_setup(void) { - struct key_entry *key; int err; msi_wmi_input_dev = input_allocate_device(); @@ -277,26 +207,25 @@ static int __init msi_wmi_input_setup(void) msi_wmi_input_dev->name = "MSI WMI hotkeys"; msi_wmi_input_dev->phys = "wmi/input0"; msi_wmi_input_dev->id.bustype = BUS_HOST; - msi_wmi_input_dev->getkeycode = msi_wmi_getkeycode; - msi_wmi_input_dev->setkeycode = msi_wmi_setkeycode; - - for (key = msi_wmi_keymap; key->type != KE_END; key++) { - switch (key->type) { - case KE_KEY: - set_bit(EV_KEY, msi_wmi_input_dev->evbit); - set_bit(key->keycode, msi_wmi_input_dev->keybit); - break; - } - } + + err = sparse_keymap_setup(msi_wmi_input_dev, msi_wmi_keymap, NULL); + if (err) + goto err_free_dev; err = input_register_device(msi_wmi_input_dev); - if (err) { - input_free_device(msi_wmi_input_dev); - return err; - } + if (err) + goto err_free_keymap; + + memset(last_pressed, 0, sizeof(last_pressed)); return 0; + +err_free_keymap: + sparse_keymap_free(msi_wmi_input_dev); +err_free_dev: + input_free_device(msi_wmi_input_dev); + return err; } static int __init msi_wmi_init(void) @@ -347,6 +276,7 @@ static void __exit msi_wmi_exit(void) { if (wmi_has_guid(MSIWMI_EVENT_GUID)) { wmi_remove_notify_handler(MSIWMI_EVENT_GUID); + sparse_keymap_free(msi_wmi_input_dev); input_unregister_device(msi_wmi_input_dev); backlight_device_unregister(backlight); } -- cgit v1.2.3 From de078e5747fa3a95efac04fd6725dcceb4520416 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Mon, 14 Dec 2009 10:21:39 +0100 Subject: msi-wmi: depend on backlight and fix corner-cases problems Now depends on BACKLIGHT_CLASS_DEVICE. Driver will return an error if it can't get actual backlight value Fix remapping of brightness keys when backlight is not controlled by ACPI. Signed-off-by: Anisse Astier Signed-off-by: Len Brown --- drivers/platform/x86/Kconfig | 1 + drivers/platform/x86/msi-wmi.c | 23 +++++++++++++++-------- 2 files changed, 16 insertions(+), 8 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 1f82d6df96e1..a006dec3b3ef 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -369,6 +369,7 @@ config MSI_WMI tristate "MSI WMI extras" depends on ACPI_WMI depends on INPUT + depends on BACKLIGHT_CLASS_DEVICE select INPUT_SPARSEKMAP help Say Y here if you want to support WMI-based hotkeys on MSI laptops. diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c index e25b80c530f7..0c8fe145c4af 100644 --- a/drivers/platform/x86/msi-wmi.c +++ b/drivers/platform/x86/msi-wmi.c @@ -53,11 +53,15 @@ MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-6638:*"); #define dprintk(msg...) pr_debug(DRV_PFX msg) #define KEYCODE_BASE 0xD0 +#define MSI_WMI_BRIGHTNESSUP KEYCODE_BASE +#define MSI_WMI_BRIGHTNESSDOWN (KEYCODE_BASE + 1) +#define MSI_WMI_VOLUMEUP (KEYCODE_BASE + 2) +#define MSI_WMI_VOLUMEDOWN (KEYCODE_BASE + 3) static struct key_entry msi_wmi_keymap[] = { - { KE_KEY, KEYCODE_BASE, {KEY_BRIGHTNESSUP} }, - { KE_KEY, KEYCODE_BASE + 1, {KEY_BRIGHTNESSDOWN} }, - { KE_KEY, KEYCODE_BASE + 2, {KEY_VOLUMEUP} }, - { KE_KEY, KEYCODE_BASE + 3, {KEY_VOLUMEDOWN} }, + { KE_KEY, MSI_WMI_BRIGHTNESSUP, {KEY_BRIGHTNESSUP} }, + { KE_KEY, MSI_WMI_BRIGHTNESSDOWN, {KEY_BRIGHTNESSDOWN} }, + { KE_KEY, MSI_WMI_VOLUMEUP, {KEY_VOLUMEUP} }, + { KE_KEY, MSI_WMI_VOLUMEDOWN, {KEY_VOLUMEDOWN} }, { KE_END, 0} }; static ktime_t last_pressed[ARRAY_SIZE(msi_wmi_keymap) - 1]; @@ -110,12 +114,14 @@ static int msi_wmi_set_block(int instance, int value) static int bl_get(struct backlight_device *bd) { - int level, err, ret = 0; + int level, err, ret; /* Instance 1 is "get backlight", cmp with DSDT */ err = msi_wmi_query_block(1, &ret); - if (err) + if (err) { printk(KERN_ERR DRV_PFX "Could not query backlight: %d\n", err); + return -EINVAL; + } dprintk("Get: Query block returned: %d\n", ret); for (level = 0; level < ARRAY_SIZE(backlight_map); level++) { if (backlight_map[level] == ret) { @@ -180,8 +186,9 @@ static void msi_wmi_notify(u32 value, void *context) if (key->type == KE_KEY && /* Brightness is served via acpi video driver */ - (backlight || (key->keycode != KEY_BRIGHTNESSUP && - key->keycode != KEY_BRIGHTNESSDOWN))) { + (!acpi_video_backlight_support() || + (key->code != MSI_WMI_BRIGHTNESSUP && + key->code != MSI_WMI_BRIGHTNESSDOWN))) { dprintk("Send key: 0x%X - " "Input layer keycode: %d\n", key->code, key->keycode); -- cgit v1.2.3