diff options
Diffstat (limited to 'drivers/platform/x86/toshiba_acpi.c')
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 73833079bac8..df1f1a76a862 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -36,6 +36,7 @@ #include <linux/kernel.h> #include <linux/module.h> +#include <linux/moduleparam.h> #include <linux/init.h> #include <linux/types.h> #include <linux/proc_fs.h> @@ -117,6 +118,7 @@ MODULE_LICENSE("GPL"); #define HCI_LCD_BRIGHTNESS 0x002a #define HCI_WIRELESS 0x0056 #define HCI_ACCELEROMETER 0x006d +#define HCI_COOLING_METHOD 0x007f #define HCI_KBD_ILLUMINATION 0x0095 #define HCI_ECO_MODE 0x0097 #define HCI_ACCELEROMETER2 0x00a6 @@ -186,6 +188,7 @@ struct toshiba_acpi_dev { int usbsc_bat_level; int usbsc_mode_base; int hotkey_event_type; + int max_cooling_method; unsigned int illumination_supported:1; unsigned int video_supported:1; @@ -205,6 +208,7 @@ struct toshiba_acpi_dev { unsigned int panel_power_on_supported:1; unsigned int usb_three_supported:1; unsigned int wwan_supported:1; + unsigned int cooling_method_supported:1; unsigned int sysfs_created:1; unsigned int special_functions; @@ -217,6 +221,10 @@ struct toshiba_acpi_dev { static struct toshiba_acpi_dev *toshiba_acpi; +static bool disable_hotkeys; +module_param(disable_hotkeys, bool, 0444); +MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation"); + static const struct acpi_device_id toshiba_device_ids[] = { {"TOS6200", 0}, {"TOS6207", 0}, @@ -1194,6 +1202,53 @@ static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state) return out[0] == TOS_SUCCESS ? 0 : -EIO; } +/* Cooling Method */ +static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev) +{ + u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + dev->cooling_method_supported = 0; + dev->max_cooling_method = 0; + + status = tci_raw(dev, in, out); + if (ACPI_FAILURE(status)) + pr_err("ACPI call to get Cooling Method failed\n"); + + if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2) + return; + + dev->cooling_method_supported = 1; + dev->max_cooling_method = out[3]; +} + +static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state) +{ + u32 result = hci_read(dev, HCI_COOLING_METHOD, state); + + if (result == TOS_FAILURE) + pr_err("ACPI call to get Cooling Method failed\n"); + + if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; +} + +static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state) +{ + u32 result = hci_write(dev, HCI_COOLING_METHOD, state); + + if (result == TOS_FAILURE) + pr_err("ACPI call to get Cooling Method failed\n"); + + if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; +} + /* Transflective Backlight */ static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status) { @@ -2239,6 +2294,54 @@ static ssize_t usb_three_store(struct device *dev, } static DEVICE_ATTR_RW(usb_three); +static ssize_t cooling_method_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); + int state; + int ret; + + ret = toshiba_cooling_method_get(toshiba, &state); + if (ret < 0) + return ret; + + return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method); +} + +static ssize_t cooling_method_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); + int state; + int ret; + + ret = kstrtoint(buf, 0, &state); + if (ret) + return ret; + + /* + * Check for supported values + * Depending on the laptop model, some only support these two: + * 0 - Maximum Performance + * 1 - Battery Optimized + * + * While some others support all three methods: + * 0 - Maximum Performance + * 1 - Performance + * 2 - Battery Optimized + */ + if (state < 0 || state > toshiba->max_cooling_method) + return -EINVAL; + + ret = toshiba_cooling_method_set(toshiba, state); + if (ret) + return ret; + + return count; +} +static DEVICE_ATTR_RW(cooling_method); + static struct attribute *toshiba_attributes[] = { &dev_attr_version.attr, &dev_attr_fan.attr, @@ -2255,6 +2358,7 @@ static struct attribute *toshiba_attributes[] = { &dev_attr_kbd_function_keys.attr, &dev_attr_panel_power_on.attr, &dev_attr_usb_three.attr, + &dev_attr_cooling_method.attr, NULL, }; @@ -2289,6 +2393,8 @@ static umode_t toshiba_sysfs_is_visible(struct kobject *kobj, exists = (drv->panel_power_on_supported) ? true : false; else if (attr == &dev_attr_usb_three.attr) exists = (drv->usb_three_supported) ? true : false; + else if (attr == &dev_attr_cooling_method.attr) + exists = (drv->cooling_method_supported) ? true : false; return exists ? attr->mode : 0; } @@ -2591,6 +2697,11 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev) acpi_handle ec_handle; int error; + if (disable_hotkeys) { + pr_info("Hotkeys disabled by module parameter\n"); + return 0; + } + if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) { pr_info("WMI event detected, hotkeys will not be monitored\n"); return 0; @@ -2779,6 +2890,8 @@ static void print_supported_features(struct toshiba_acpi_dev *dev) pr_cont(" usb3"); if (dev->wwan_supported) pr_cont(" wwan"); + if (dev->cooling_method_supported) + pr_cont(" cooling-method"); pr_cont("\n"); } @@ -2963,6 +3076,8 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev) if (dev->wwan_supported) toshiba_acpi_setup_wwan_rfkill(dev); + toshiba_cooling_method_available(dev); + print_supported_features(dev); ret = sysfs_create_group(&dev->acpi_dev->dev.kobj, |