diff options
Diffstat (limited to 'drivers/platform/x86/asus-laptop.c')
| -rw-r--r-- | drivers/platform/x86/asus-laptop.c | 378 |
1 files changed, 358 insertions, 20 deletions
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index fa6d7ec68b26..edaccad9b5bf 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -4,6 +4,7 @@ * * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor * Copyright (C) 2006-2007 Corentin Chary + * Copyright (C) 2011 Wind River Systems * * 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 @@ -48,6 +49,7 @@ #include <linux/uaccess.h> #include <linux/input.h> #include <linux/input/sparse-keymap.h> +#include <linux/input-polldev.h> #include <linux/rfkill.h> #include <linux/slab.h> #include <linux/dmi.h> @@ -83,26 +85,32 @@ static int wlan_status = 1; static int bluetooth_status = 1; static int wimax_status = -1; static int wwan_status = -1; +static int als_status; module_param(wlan_status, int, 0444); MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot " "(0 = disabled, 1 = enabled, -1 = don't do anything). " - "default is 1"); + "default is -1"); module_param(bluetooth_status, int, 0444); MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot " "(0 = disabled, 1 = enabled, -1 = don't do anything). " - "default is 1"); + "default is -1"); module_param(wimax_status, int, 0444); MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot " "(0 = disabled, 1 = enabled, -1 = don't do anything). " - "default is 1"); + "default is -1"); module_param(wwan_status, int, 0444); MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot " "(0 = disabled, 1 = enabled, -1 = don't do anything). " - "default is 1"); + "default is -1"); + +module_param(als_status, int, 0444); +MODULE_PARM_DESC(als_status, "Set the ALS status on boot " + "(0 = disabled, 1 = enabled). " + "default is 0"); /* * Some events we use, same for all Asus @@ -173,6 +181,29 @@ MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot " #define METHOD_KBD_LIGHT_SET "SLKB" #define METHOD_KBD_LIGHT_GET "GLKB" +/* For Pegatron Lucid tablet */ +#define DEVICE_NAME_PEGA "Lucid" + +#define METHOD_PEGA_ENABLE "ENPR" +#define METHOD_PEGA_DISABLE "DAPR" +#define PEGA_WLAN 0x00 +#define PEGA_BLUETOOTH 0x01 +#define PEGA_WWAN 0x02 +#define PEGA_ALS 0x04 +#define PEGA_ALS_POWER 0x05 + +#define METHOD_PEGA_READ "RDLN" +#define PEGA_READ_ALS_H 0x02 +#define PEGA_READ_ALS_L 0x03 + +#define PEGA_ACCEL_NAME "pega_accel" +#define PEGA_ACCEL_DESC "Pegatron Lucid Tablet Accelerometer" +#define METHOD_XLRX "XLRX" +#define METHOD_XLRY "XLRY" +#define METHOD_XLRZ "XLRZ" +#define PEGA_ACC_CLAMP 512 /* 1G accel is reported as ~256, so clamp to 2G */ +#define PEGA_ACC_RETRIES 3 + /* * Define a specific led structure to keep the main structure clean */ @@ -185,6 +216,15 @@ struct asus_led { }; /* + * Same thing for rfkill + */ +struct asus_pega_rfkill { + int control_id; /* type of control. Maps to PEGA_* values */ + struct rfkill *rfkill; + struct asus_laptop *asus; +}; + +/* * This is the main structure, we can use it to store anything interesting * about the hotk device */ @@ -198,6 +238,7 @@ struct asus_laptop { struct input_dev *inputdev; struct key_entry *keymap; + struct input_polled_dev *pega_accel_poll; struct asus_led mled; struct asus_led tled; @@ -209,9 +250,18 @@ struct asus_laptop { int wireless_status; bool have_rsts; + bool is_pega_lucid; + bool pega_acc_live; + int pega_acc_x; + int pega_acc_y; + int pega_acc_z; struct rfkill *gps_rfkill; + struct asus_pega_rfkill wlanrfk; + struct asus_pega_rfkill btrfk; + struct asus_pega_rfkill wwanrfk; + acpi_handle handle; /* the handle of the hotk device */ u32 ledd_status; /* status of the LED display */ u8 light_level; /* light sensor level */ @@ -323,6 +373,127 @@ static int acpi_check_handle(acpi_handle handle, const char *method, return 0; } +static bool asus_check_pega_lucid(struct asus_laptop *asus) +{ + return !strcmp(asus->name, DEVICE_NAME_PEGA) && + !acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) && + !acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) && + !acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL); +} + +static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable) +{ + char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE; + return write_acpi_int(asus->handle, method, unit); +} + +static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method) +{ + int i, delta; + unsigned long long val; + for (i = 0; i < PEGA_ACC_RETRIES; i++) { + acpi_evaluate_integer(asus->handle, method, NULL, &val); + + /* The output is noisy. From reading the ASL + * dissassembly, timeout errors are returned with 1's + * in the high word, and the lack of locking around + * thei hi/lo byte reads means that a transition + * between (for example) -1 and 0 could be read as + * 0xff00 or 0x00ff. */ + delta = abs(curr - (short)val); + if (delta < 128 && !(val & ~0xffff)) + break; + } + return clamp_val((short)val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP); +} + +static void pega_accel_poll(struct input_polled_dev *ipd) +{ + struct device *parent = ipd->input->dev.parent; + struct asus_laptop *asus = dev_get_drvdata(parent); + + /* In some cases, the very first call to poll causes a + * recursive fault under the polldev worker. This is + * apparently related to very early userspace access to the + * device, and perhaps a firmware bug. Fake the first report. */ + if (!asus->pega_acc_live) { + asus->pega_acc_live = true; + input_report_abs(ipd->input, ABS_X, 0); + input_report_abs(ipd->input, ABS_Y, 0); + input_report_abs(ipd->input, ABS_Z, 0); + input_sync(ipd->input); + return; + } + + asus->pega_acc_x = pega_acc_axis(asus, asus->pega_acc_x, METHOD_XLRX); + asus->pega_acc_y = pega_acc_axis(asus, asus->pega_acc_y, METHOD_XLRY); + asus->pega_acc_z = pega_acc_axis(asus, asus->pega_acc_z, METHOD_XLRZ); + + /* Note transform, convert to "right/up/out" in the native + * landscape orientation (i.e. the vector is the direction of + * "real up" in the device's cartiesian coordinates). */ + input_report_abs(ipd->input, ABS_X, -asus->pega_acc_x); + input_report_abs(ipd->input, ABS_Y, -asus->pega_acc_y); + input_report_abs(ipd->input, ABS_Z, asus->pega_acc_z); + input_sync(ipd->input); +} + +static void pega_accel_exit(struct asus_laptop *asus) +{ + if (asus->pega_accel_poll) { + input_unregister_polled_device(asus->pega_accel_poll); + input_free_polled_device(asus->pega_accel_poll); + } + asus->pega_accel_poll = NULL; +} + +static int pega_accel_init(struct asus_laptop *asus) +{ + int err; + struct input_polled_dev *ipd; + + if (!asus->is_pega_lucid) + return -ENODEV; + + if (acpi_check_handle(asus->handle, METHOD_XLRX, NULL) || + acpi_check_handle(asus->handle, METHOD_XLRY, NULL) || + acpi_check_handle(asus->handle, METHOD_XLRZ, NULL)) + return -ENODEV; + + ipd = input_allocate_polled_device(); + if (!ipd) + return -ENOMEM; + + ipd->poll = pega_accel_poll; + ipd->poll_interval = 125; + ipd->poll_interval_min = 50; + ipd->poll_interval_max = 2000; + + ipd->input->name = PEGA_ACCEL_DESC; + ipd->input->phys = PEGA_ACCEL_NAME "/input0"; + ipd->input->dev.parent = &asus->platform_device->dev; + ipd->input->id.bustype = BUS_HOST; + + set_bit(EV_ABS, ipd->input->evbit); + input_set_abs_params(ipd->input, ABS_X, + -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0); + input_set_abs_params(ipd->input, ABS_Y, + -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0); + input_set_abs_params(ipd->input, ABS_Z, + -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0); + + err = input_register_polled_device(ipd); + if (err) + goto exit; + + asus->pega_accel_poll = ipd; + return 0; + +exit: + input_free_polled_device(ipd); + return err; +} + /* Generic LED function */ static int asus_led_set(struct asus_laptop *asus, const char *method, int value) @@ -430,17 +601,17 @@ static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev) static void asus_led_exit(struct asus_laptop *asus) { - if (asus->mled.led.dev) + if (!IS_ERR_OR_NULL(asus->mled.led.dev)) led_classdev_unregister(&asus->mled.led); - if (asus->tled.led.dev) + if (!IS_ERR_OR_NULL(asus->tled.led.dev)) led_classdev_unregister(&asus->tled.led); - if (asus->pled.led.dev) + if (!IS_ERR_OR_NULL(asus->pled.led.dev)) led_classdev_unregister(&asus->pled.led); - if (asus->rled.led.dev) + if (!IS_ERR_OR_NULL(asus->rled.led.dev)) led_classdev_unregister(&asus->rled.led); - if (asus->gled.led.dev) + if (!IS_ERR_OR_NULL(asus->gled.led.dev)) led_classdev_unregister(&asus->gled.led); - if (asus->kled.led.dev) + if (!IS_ERR_OR_NULL(asus->kled.led.dev)) led_classdev_unregister(&asus->kled.led); if (asus->led_workqueue) { destroy_workqueue(asus->led_workqueue); @@ -474,6 +645,13 @@ static int asus_led_init(struct asus_laptop *asus) int r; /* + * The Pegatron Lucid has no physical leds, but all methods are + * available in the DSDT... + */ + if (asus->is_pega_lucid) + return 0; + + /* * Functions that actually update the LED's 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 @@ -907,8 +1085,18 @@ static ssize_t store_disp(struct device *dev, struct device_attribute *attr, */ static void asus_als_switch(struct asus_laptop *asus, int value) { - if (write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value)) - pr_warn("Error setting light sensor switch\n"); + int ret; + + if (asus->is_pega_lucid) { + ret = asus_pega_lucid_set(asus, PEGA_ALS, value); + if (!ret) + ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value); + } else { + ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value); + } + if (ret) + pr_warning("Error setting light sensor switch\n"); + asus->light_switch = value; } @@ -964,6 +1152,35 @@ static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr, return rv; } +static int pega_int_read(struct asus_laptop *asus, int arg, int *result) +{ + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg, + &buffer); + if (!err) { + union acpi_object *obj = buffer.pointer; + if (obj && obj->type == ACPI_TYPE_INTEGER) + *result = obj->integer.value; + else + err = -EIO; + } + return err; +} + +static ssize_t show_lsvalue(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + int err, hi, lo; + + err = pega_int_read(asus, PEGA_READ_ALS_H, &hi); + if (!err) + err = pega_int_read(asus, PEGA_READ_ALS_L, &lo); + if (!err) + return sprintf(buf, "%d\n", 10 * hi + lo); + return err; +} + /* * GPS */ @@ -1062,6 +1279,86 @@ static int asus_rfkill_init(struct asus_laptop *asus) return result; } +static int pega_rfkill_set(void *data, bool blocked) +{ + struct asus_pega_rfkill *pega_rfk = data; + + int ret = asus_pega_lucid_set(pega_rfk->asus, pega_rfk->control_id, !blocked); + pr_warn("Setting rfkill %d, to %d; returned %d\n", pega_rfk->control_id, !blocked, ret); + + return ret; +} + +static const struct rfkill_ops pega_rfkill_ops = { + .set_block = pega_rfkill_set, +}; + +static void pega_rfkill_terminate(struct asus_pega_rfkill *pega_rfk) +{ + pr_warn("Terminating %d\n", pega_rfk->control_id); + if (pega_rfk->rfkill) { + rfkill_unregister(pega_rfk->rfkill); + rfkill_destroy(pega_rfk->rfkill); + pega_rfk->rfkill = NULL; + } +} + +static void pega_rfkill_exit(struct asus_laptop *asus) +{ + pega_rfkill_terminate(&asus->wwanrfk); + pega_rfkill_terminate(&asus->btrfk); + pega_rfkill_terminate(&asus->wlanrfk); +} + +static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_pega_rfkill *pega_rfk, + const char *name, int controlid, int rfkill_type) +{ + int result; + + pr_warn("Setting up rfk %s, control %d, type %d\n", name, controlid, rfkill_type); + pega_rfk->control_id = controlid; + pega_rfk->asus = asus; + pega_rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev, + rfkill_type, &pega_rfkill_ops, pega_rfk); + if (!pega_rfk->rfkill) + return -EINVAL; + + result = rfkill_register(pega_rfk->rfkill); + if (result) { + rfkill_destroy(pega_rfk->rfkill); + pega_rfk->rfkill = NULL; + } + + return result; +} + +static int pega_rfkill_init(struct asus_laptop *asus) +{ + int ret = 0; + + if(!asus->is_pega_lucid) + return -ENODEV; + + ret = pega_rfkill_setup(asus, &asus->wlanrfk, "pega-wlan", PEGA_WLAN, RFKILL_TYPE_WLAN); + if(ret) + return ret; + ret = pega_rfkill_setup(asus, &asus->btrfk, "pega-bt", PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH); + if(ret) + goto err_btrfk; + ret = pega_rfkill_setup(asus, &asus->wwanrfk, "pega-wwan", PEGA_WWAN, RFKILL_TYPE_WWAN); + if(ret) + goto err_wwanrfk; + + pr_warn("Pega rfkill init succeeded\n"); + return 0; +err_wwanrfk: + pega_rfkill_terminate(&asus->btrfk); +err_btrfk: + pega_rfkill_terminate(&asus->wlanrfk); + + return ret; +} + /* * Input device (i.e. hotkeys) */ @@ -1141,6 +1438,14 @@ static void asus_acpi_notify(struct acpi_device *device, u32 event) } return ; } + + /* Accelerometer "coarse orientation change" event */ + if (asus->pega_accel_poll && event == 0xEA) { + kobject_uevent(&asus->pega_accel_poll->input->dev.kobj, + KOBJ_CHANGE); + return ; + } + asus_input_notify(asus, event); } @@ -1152,6 +1457,7 @@ static DEVICE_ATTR(wimax, S_IRUGO | S_IWUSR, show_wimax, store_wimax); static DEVICE_ATTR(wwan, S_IRUGO | S_IWUSR, show_wwan, store_wwan); static DEVICE_ATTR(display, S_IWUSR, NULL, store_disp); static DEVICE_ATTR(ledd, S_IRUGO | S_IWUSR, show_ledd, store_ledd); +static DEVICE_ATTR(ls_value, S_IRUGO, show_lsvalue, NULL); static DEVICE_ATTR(ls_level, S_IRUGO | S_IWUSR, show_lslvl, store_lslvl); static DEVICE_ATTR(ls_switch, S_IRUGO | S_IWUSR, show_lssw, store_lssw); static DEVICE_ATTR(gps, S_IRUGO | S_IWUSR, show_gps, store_gps); @@ -1164,6 +1470,7 @@ static struct attribute *asus_attributes[] = { &dev_attr_wwan.attr, &dev_attr_display.attr, &dev_attr_ledd.attr, + &dev_attr_ls_value.attr, &dev_attr_ls_level.attr, &dev_attr_ls_switch.attr, &dev_attr_gps.attr, @@ -1180,6 +1487,19 @@ static mode_t asus_sysfs_is_visible(struct kobject *kobj, acpi_handle handle = asus->handle; bool supported; + if (asus->is_pega_lucid) { + /* no ls_level interface on the Lucid */ + if (attr == &dev_attr_ls_switch.attr) + supported = true; + else if (attr == &dev_attr_ls_level.attr) + supported = false; + else + goto normal; + + return supported; + } + +normal: if (attr == &dev_attr_wlan.attr) { supported = !acpi_check_handle(handle, METHOD_WLAN, NULL); @@ -1202,8 +1522,9 @@ static mode_t asus_sysfs_is_visible(struct kobject *kobj, } else if (attr == &dev_attr_ls_switch.attr || attr == &dev_attr_ls_level.attr) { supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) && - !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL); - + !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL); + } else if (attr == &dev_attr_ls_value.attr) { + supported = asus->is_pega_lucid; } else if (attr == &dev_attr_gps.attr) { supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) && !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) && @@ -1258,7 +1579,7 @@ static struct platform_driver platform_driver = { .driver = { .name = ASUS_LAPTOP_FILE, .owner = THIS_MODULE, - } + }, }; /* @@ -1388,11 +1709,13 @@ static int __devinit asus_acpi_init(struct asus_laptop *asus) asus->ledd_status = 0xFFF; /* Set initial values of light sensor and level */ - asus->light_switch = 0; /* Default to light sensor disabled */ + asus->light_switch = !!als_status; asus->light_level = 5; /* level 5 for sensor sensitivity */ - if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) && - !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) { + if (asus->is_pega_lucid) { + asus_als_switch(asus, asus->light_switch); + } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) && + !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) { asus_als_switch(asus, asus->light_switch); asus_als_level(asus, asus->light_level); } @@ -1439,9 +1762,10 @@ static int __devinit asus_acpi_add(struct acpi_device *device) goto fail_platform; /* - * Register the platform device first. It is used as a parent for the - * sub-devices below. + * Need platform type detection first, then the platform + * device. It is used as a parent for the sub-devices below. */ + asus->is_pega_lucid = asus_check_pega_lucid(asus); result = asus_platform_init(asus); if (result) goto fail_platform; @@ -1465,9 +1789,21 @@ static int __devinit asus_acpi_add(struct acpi_device *device) if (result) goto fail_rfkill; + result = pega_accel_init(asus); + if (result && result != -ENODEV) + goto fail_pega_accel; + + result = pega_rfkill_init(asus); + if (result && result != -ENODEV) + goto fail_pega_rfkill; + asus_device_present = true; return 0; +fail_pega_rfkill: + pega_accel_exit(asus); +fail_pega_accel: + asus_rfkill_exit(asus); fail_rfkill: asus_led_exit(asus); fail_led: @@ -1491,6 +1827,8 @@ static int asus_acpi_remove(struct acpi_device *device, int type) asus_rfkill_exit(asus); asus_led_exit(asus); asus_input_exit(asus); + pega_accel_exit(asus); + pega_rfkill_exit(asus); asus_platform_exit(asus); kfree(asus->name); |