diff options
Diffstat (limited to 'drivers/platform/x86/asus-laptop.c')
| -rw-r--r-- | drivers/platform/x86/asus-laptop.c | 1553 |
1 files changed, 1553 insertions, 0 deletions
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c new file mode 100644 index 00000000..d65df92e --- /dev/null +++ b/drivers/platform/x86/asus-laptop.c @@ -0,0 +1,1553 @@ +/* + * asus-laptop.c - Asus Laptop Support + * + * + * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor + * Copyright (C) 2006-2007 Corentin Chary + * + * 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 + * + * + * The development page for this driver is located at + * http://sourceforge.net/projects/acpi4asus/ + * + * Credits: + * Pontus Fuchs - Helper functions, cleanup + * Johann Wiesner - Small compile fixes + * John Belmonte - ACPI code for Toshiba laptop was a good starting point. + * Eric Burghard - LED display support for W1N + * Josh Green - Light Sens support + * Thomas Tuttle - His first patch for led support was very helpful + * Sam Lin - GPS support + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/err.h> +#include <linux/proc_fs.h> +#include <linux/backlight.h> +#include <linux/fb.h> +#include <linux/leds.h> +#include <linux/platform_device.h> +#include <linux/uaccess.h> +#include <linux/input.h> +#include <linux/input/sparse-keymap.h> +#include <linux/rfkill.h> +#include <linux/slab.h> +#include <linux/dmi.h> +#include <acpi/acpi_drivers.h> +#include <acpi/acpi_bus.h> + +#define ASUS_LAPTOP_VERSION "0.42" + +#define ASUS_LAPTOP_NAME "Asus Laptop Support" +#define ASUS_LAPTOP_CLASS "hotkey" +#define ASUS_LAPTOP_DEVICE_NAME "Hotkey" +#define ASUS_LAPTOP_FILE KBUILD_MODNAME +#define ASUS_LAPTOP_PREFIX "\\_SB.ATKD." + +MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary"); +MODULE_DESCRIPTION(ASUS_LAPTOP_NAME); +MODULE_LICENSE("GPL"); + +/* + * WAPF defines the behavior of the Fn+Fx wlan key + * The significance of values is yet to be found, but + * most of the time: + * 0x0 will do nothing + * 0x1 will allow to control the device with Fn+Fx key. + * 0x4 will send an ACPI event (0x88) while pressing the Fn+Fx key + * 0x5 like 0x1 or 0x4 + * So, if something doesn't work as you want, just try other values =) + */ +static uint wapf = 1; +module_param(wapf, uint, 0444); +MODULE_PARM_DESC(wapf, "WAPF value"); + +static int wlan_status = 1; +static int bluetooth_status = 1; +static int wimax_status = -1; +static int wwan_status = -1; + +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"); + +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"); + +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"); + +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"); + +/* + * Some events we use, same for all Asus + */ +#define ATKD_BR_UP 0x10 /* (event & ~ATKD_BR_UP) = brightness level */ +#define ATKD_BR_DOWN 0x20 /* (event & ~ATKD_BR_DOWN) = britghness level */ +#define ATKD_BR_MIN ATKD_BR_UP +#define ATKD_BR_MAX (ATKD_BR_DOWN | 0xF) /* 0x2f */ +#define ATKD_LCD_ON 0x33 +#define ATKD_LCD_OFF 0x34 + +/* + * Known bits returned by \_SB.ATKD.HWRS + */ +#define WL_HWRS 0x80 +#define BT_HWRS 0x100 + +/* + * Flags for hotk status + * WL_ON and BT_ON are also used for wireless_status() + */ +#define WL_RSTS 0x01 /* internal Wifi */ +#define BT_RSTS 0x02 /* internal Bluetooth */ +#define WM_RSTS 0x08 /* internal wimax */ +#define WW_RSTS 0x20 /* internal wwan */ + +/* LED */ +#define METHOD_MLED "MLED" +#define METHOD_TLED "TLED" +#define METHOD_RLED "RLED" /* W1JC */ +#define METHOD_PLED "PLED" /* A7J */ +#define METHOD_GLED "GLED" /* G1, G2 (probably) */ + +/* LEDD */ +#define METHOD_LEDD "SLCM" + +/* + * Bluetooth and WLAN + * WLED and BLED are not handled like other XLED, because in some dsdt + * they also control the WLAN/Bluetooth device. + */ +#define METHOD_WLAN "WLED" +#define METHOD_BLUETOOTH "BLED" + +/* WWAN and WIMAX */ +#define METHOD_WWAN "GSMC" +#define METHOD_WIMAX "WMXC" + +#define METHOD_WL_STATUS "RSTS" + +/* Brightness */ +#define METHOD_BRIGHTNESS_SET "SPLV" +#define METHOD_BRIGHTNESS_GET "GPLV" + +/* Display */ +#define METHOD_SWITCH_DISPLAY "SDSP" + +#define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */ +#define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */ + +/* GPS */ +/* R2H use different handle for GPS on/off */ +#define METHOD_GPS_ON "SDON" +#define METHOD_GPS_OFF "SDOF" +#define METHOD_GPS_STATUS "GPST" + +/* Keyboard light */ +#define METHOD_KBD_LIGHT_SET "SLKB" +#define METHOD_KBD_LIGHT_GET "GLKB" + +/* + * Define a specific led structure to keep the main structure clean + */ +struct asus_led { + int wk; + struct work_struct work; + struct led_classdev led; + struct asus_laptop *asus; + const char *method; +}; + +/* + * This is the main structure, we can use it to store anything interesting + * about the hotk device + */ +struct asus_laptop { + char *name; /* laptop name */ + + struct acpi_table_header *dsdt_info; + struct platform_device *platform_device; + struct acpi_device *device; /* the device we are in */ + struct backlight_device *backlight_device; + + struct input_dev *inputdev; + struct key_entry *keymap; + + struct asus_led mled; + struct asus_led tled; + struct asus_led rled; + struct asus_led pled; + struct asus_led gled; + struct asus_led kled; + struct workqueue_struct *led_workqueue; + + int wireless_status; + bool have_rsts; + + struct rfkill *gps_rfkill; + + acpi_handle handle; /* the handle of the hotk device */ + u32 ledd_status; /* status of the LED display */ + u8 light_level; /* light sensor level */ + u8 light_switch; /* light sensor switch value */ + u16 event_count[128]; /* count for each event TODO make this better */ +}; + +static const struct key_entry asus_keymap[] = { + /* Lenovo SL Specific keycodes */ + {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 } }, + /* End of Lenovo SL Specific keycodes */ + {KE_KEY, 0x30, { KEY_VOLUMEUP } }, + {KE_KEY, 0x31, { KEY_VOLUMEDOWN } }, + {KE_KEY, 0x32, { KEY_MUTE } }, + {KE_KEY, 0x33, { KEY_SWITCHVIDEOMODE } }, + {KE_KEY, 0x34, { KEY_SWITCHVIDEOMODE } }, + {KE_KEY, 0x40, { KEY_PREVIOUSSONG } }, + {KE_KEY, 0x41, { KEY_NEXTSONG } }, + {KE_KEY, 0x43, { KEY_STOPCD } }, + {KE_KEY, 0x45, { KEY_PLAYPAUSE } }, + {KE_KEY, 0x4c, { KEY_MEDIA } }, + {KE_KEY, 0x50, { KEY_EMAIL } }, + {KE_KEY, 0x51, { KEY_WWW } }, + {KE_KEY, 0x55, { KEY_CALC } }, + {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */ + {KE_KEY, 0x5D, { KEY_WLAN } }, + {KE_KEY, 0x5E, { KEY_WLAN } }, + {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, 0x7E, { KEY_BLUETOOTH } }, + {KE_KEY, 0x7D, { KEY_BLUETOOTH } }, + {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 } }, + {KE_KEY, 0xc4, { KEY_KBDILLUMUP } }, + {KE_KEY, 0xc5, { KEY_KBDILLUMDOWN } }, + {KE_KEY, 0xb5, { KEY_CALC } }, + {KE_END, 0}, +}; + + +/* + * This function evaluates an ACPI method, given an int as parameter, the + * method is searched within the scope of the handle, can be NULL. The output + * of the method is written is output, which can also be NULL + * + * returns 0 if write is successful, -1 else. + */ +static int write_acpi_int_ret(acpi_handle handle, const char *method, int val, + struct acpi_buffer *output) +{ + struct acpi_object_list params; /* list of input parameters (an int) */ + union acpi_object in_obj; /* the only param we use */ + acpi_status status; + + if (!handle) + return -1; + + params.count = 1; + params.pointer = &in_obj; + in_obj.type = ACPI_TYPE_INTEGER; + in_obj.integer.value = val; + + status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); + if (status == AE_OK) + return 0; + else + return -1; +} + +static int write_acpi_int(acpi_handle handle, const char *method, int val) +{ + return write_acpi_int_ret(handle, method, val, NULL); +} + +static int acpi_check_handle(acpi_handle handle, const char *method, + acpi_handle *ret) +{ + acpi_status status; + + if (method == NULL) + return -ENODEV; + + if (ret) + status = acpi_get_handle(handle, (char *)method, + ret); + else { + acpi_handle dummy; + + status = acpi_get_handle(handle, (char *)method, + &dummy); + } + + if (status != AE_OK) { + if (ret) + pr_warn("Error finding %s\n", method); + return -ENODEV; + } + return 0; +} + +/* Generic LED function */ +static int asus_led_set(struct asus_laptop *asus, const char *method, + int value) +{ + if (!strcmp(method, METHOD_MLED)) + value = !value; + else if (!strcmp(method, METHOD_GLED)) + value = !value + 1; + else + value = !!value; + + return write_acpi_int(asus->handle, method, value); +} + +/* + * LEDs + */ +/* /sys/class/led handlers */ +static void asus_led_cdev_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct asus_led *led = container_of(led_cdev, struct asus_led, led); + struct asus_laptop *asus = led->asus; + + led->wk = !!value; + queue_work(asus->led_workqueue, &led->work); +} + +static void asus_led_cdev_update(struct work_struct *work) +{ + struct asus_led *led = container_of(work, struct asus_led, work); + struct asus_laptop *asus = led->asus; + + asus_led_set(asus, led->method, led->wk); +} + +static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev) +{ + return led_cdev->brightness; +} + +/* + * Keyboard backlight (also a LED) + */ +static int asus_kled_lvl(struct asus_laptop *asus) +{ + unsigned long long kblv; + struct acpi_object_list params; + union acpi_object in_obj; + acpi_status rv; + + params.count = 1; + params.pointer = &in_obj; + in_obj.type = ACPI_TYPE_INTEGER; + in_obj.integer.value = 2; + + rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET, + ¶ms, &kblv); + if (ACPI_FAILURE(rv)) { + pr_warn("Error reading kled level\n"); + return -ENODEV; + } + return kblv; +} + +static int asus_kled_set(struct asus_laptop *asus, int kblv) +{ + if (kblv > 0) + kblv = (1 << 7) | (kblv & 0x7F); + else + kblv = 0; + + if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) { + pr_warn("Keyboard LED display write failed\n"); + return -EINVAL; + } + return 0; +} + +static void asus_kled_cdev_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct asus_led *led = container_of(led_cdev, struct asus_led, led); + struct asus_laptop *asus = led->asus; + + led->wk = value; + queue_work(asus->led_workqueue, &led->work); +} + +static void asus_kled_cdev_update(struct work_struct *work) +{ + struct asus_led *led = container_of(work, struct asus_led, work); + struct asus_laptop *asus = led->asus; + + asus_kled_set(asus, led->wk); +} + +static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev) +{ + struct asus_led *led = container_of(led_cdev, struct asus_led, led); + struct asus_laptop *asus = led->asus; + + return asus_kled_lvl(asus); +} + +static void asus_led_exit(struct asus_laptop *asus) +{ + if (asus->mled.led.dev) + led_classdev_unregister(&asus->mled.led); + if (asus->tled.led.dev) + led_classdev_unregister(&asus->tled.led); + if (asus->pled.led.dev) + led_classdev_unregister(&asus->pled.led); + if (asus->rled.led.dev) + led_classdev_unregister(&asus->rled.led); + if (asus->gled.led.dev) + led_classdev_unregister(&asus->gled.led); + if (asus->kled.led.dev) + led_classdev_unregister(&asus->kled.led); + if (asus->led_workqueue) { + destroy_workqueue(asus->led_workqueue); + asus->led_workqueue = NULL; + } +} + +/* Ugly macro, need to fix that later */ +static int asus_led_register(struct asus_laptop *asus, + struct asus_led *led, + const char *name, const char *method) +{ + struct led_classdev *led_cdev = &led->led; + + if (!method || acpi_check_handle(asus->handle, method, NULL)) + return 0; /* Led not present */ + + led->asus = asus; + led->method = method; + + INIT_WORK(&led->work, asus_led_cdev_update); + led_cdev->name = name; + led_cdev->brightness_set = asus_led_cdev_set; + led_cdev->brightness_get = asus_led_cdev_get; + led_cdev->max_brightness = 1; + return led_classdev_register(&asus->platform_device->dev, led_cdev); +} + +static int asus_led_init(struct asus_laptop *asus) +{ + int r; + + /* + * 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 + * potentially bad time, such as a timer interrupt. + */ + asus->led_workqueue = create_singlethread_workqueue("led_workqueue"); + if (!asus->led_workqueue) + return -ENOMEM; + + r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED); + if (r) + goto error; + r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED); + if (r) + goto error; + r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED); + if (r) + goto error; + r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED); + if (r) + goto error; + r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED); + if (r) + goto error; + if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) && + !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) { + struct asus_led *led = &asus->kled; + struct led_classdev *cdev = &led->led; + + led->asus = asus; + + INIT_WORK(&led->work, asus_kled_cdev_update); + cdev->name = "asus::kbd_backlight"; + cdev->brightness_set = asus_kled_cdev_set; + cdev->brightness_get = asus_kled_cdev_get; + cdev->max_brightness = 3; + r = led_classdev_register(&asus->platform_device->dev, cdev); + } +error: + if (r) + asus_led_exit(asus); + return r; +} + +/* + * Backlight device + */ +static int asus_read_brightness(struct backlight_device *bd) +{ + struct asus_laptop *asus = bl_get_data(bd); + unsigned long long value; + acpi_status rv = AE_OK; + + rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET, + NULL, &value); + if (ACPI_FAILURE(rv)) + pr_warn("Error reading brightness\n"); + + return value; +} + +static int asus_set_brightness(struct backlight_device *bd, int value) +{ + struct asus_laptop *asus = bl_get_data(bd); + + if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) { + pr_warn("Error changing brightness\n"); + return -EIO; + } + return 0; +} + +static int update_bl_status(struct backlight_device *bd) +{ + int value = bd->props.brightness; + + return asus_set_brightness(bd, value); +} + +static const struct backlight_ops asusbl_ops = { + .get_brightness = asus_read_brightness, + .update_status = update_bl_status, +}; + +static int asus_backlight_notify(struct asus_laptop *asus) +{ + struct backlight_device *bd = asus->backlight_device; + int old = bd->props.brightness; + + backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); + + return old; +} + +static int asus_backlight_init(struct asus_laptop *asus) +{ + struct backlight_device *bd; + struct backlight_properties props; + + if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) || + acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL)) + return 0; + + memset(&props, 0, sizeof(struct backlight_properties)); + props.max_brightness = 15; + props.type = BACKLIGHT_PLATFORM; + + bd = backlight_device_register(ASUS_LAPTOP_FILE, + &asus->platform_device->dev, asus, + &asusbl_ops, &props); + if (IS_ERR(bd)) { + pr_err("Could not register asus backlight device\n"); + asus->backlight_device = NULL; + return PTR_ERR(bd); + } + + asus->backlight_device = bd; + bd->props.brightness = asus_read_brightness(bd); + bd->props.power = FB_BLANK_UNBLANK; + backlight_update_status(bd); + return 0; +} + +static void asus_backlight_exit(struct asus_laptop *asus) +{ + if (asus->backlight_device) + backlight_device_unregister(asus->backlight_device); + asus->backlight_device = NULL; +} + +/* + * Platform device handlers + */ + +/* + * We write our info in page, we begin at offset off and cannot write more + * than count bytes. We set eof to 1 if we handle those 2 values. We return the + * number of bytes written in page + */ +static ssize_t show_infos(struct device *dev, + struct device_attribute *attr, char *page) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + int len = 0; + unsigned long long temp; + char buf[16]; /* enough for all info */ + acpi_status rv = AE_OK; + + /* + * We use the easy way, we don't care of off and count, + * so we don't set eof to 1 + */ + + len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n"); + len += sprintf(page + len, "Model reference : %s\n", asus->name); + /* + * The SFUN method probably allows the original driver to get the list + * of features supported by a given model. For now, 0x0100 or 0x0800 + * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. + * The significance of others is yet to be found. + */ + rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp); + if (!ACPI_FAILURE(rv)) + len += sprintf(page + len, "SFUN value : %#x\n", + (uint) temp); + /* + * The HWRS method return informations about the hardware. + * 0x80 bit is for WLAN, 0x100 for Bluetooth. + * The significance of others is yet to be found. + * If we don't find the method, we assume the device are present. + */ + rv = acpi_evaluate_integer(asus->handle, "HRWS", NULL, &temp); + if (!ACPI_FAILURE(rv)) + len += sprintf(page + len, "HRWS value : %#x\n", + (uint) temp); + /* + * Another value for userspace: the ASYM method returns 0x02 for + * battery low and 0x04 for battery critical, its readings tend to be + * more accurate than those provided by _BST. + * Note: since not all the laptops provide this method, errors are + * silently ignored. + */ + rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp); + if (!ACPI_FAILURE(rv)) + len += sprintf(page + len, "ASYM value : %#x\n", + (uint) temp); + if (asus->dsdt_info) { + snprintf(buf, 16, "%d", asus->dsdt_info->length); + len += sprintf(page + len, "DSDT length : %s\n", buf); + snprintf(buf, 16, "%d", asus->dsdt_info->checksum); + len += sprintf(page + len, "DSDT checksum : %s\n", buf); + snprintf(buf, 16, "%d", asus->dsdt_info->revision); + len += sprintf(page + len, "DSDT revision : %s\n", buf); + snprintf(buf, 7, "%s", asus->dsdt_info->oem_id); + len += sprintf(page + len, "OEM id : %s\n", buf); + snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id); + len += sprintf(page + len, "OEM table id : %s\n", buf); + snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision); + len += sprintf(page + len, "OEM revision : 0x%s\n", buf); + snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id); + len += sprintf(page + len, "ASL comp vendor id : %s\n", buf); + snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision); + len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf); + } + + return len; +} + +static int parse_arg(const char *buf, unsigned long count, int *val) +{ + if (!count) + return 0; + if (count > 31) + return -EINVAL; + if (sscanf(buf, "%i", val) != 1) + return -EINVAL; + return count; +} + +static ssize_t sysfs_acpi_set(struct asus_laptop *asus, + const char *buf, size_t count, + const char *method) +{ + int rv, value; + int out = 0; + + rv = parse_arg(buf, count, &value); + if (rv > 0) + out = value ? 1 : 0; + + if (write_acpi_int(asus->handle, method, value)) + return -ENODEV; + return rv; +} + +/* + * LEDD display + */ +static ssize_t show_ledd(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sprintf(buf, "0x%08x\n", asus->ledd_status); +} + +static ssize_t store_ledd(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + int rv, value; + + rv = parse_arg(buf, count, &value); + if (rv > 0) { + if (write_acpi_int(asus->handle, METHOD_LEDD, value)) { + pr_warn("LED display write failed\n"); + return -ENODEV; + } + asus->ledd_status = (u32) value; + } + return rv; +} + +/* + * Wireless + */ +static int asus_wireless_status(struct asus_laptop *asus, int mask) +{ + unsigned long long status; + acpi_status rv = AE_OK; + + if (!asus->have_rsts) + return (asus->wireless_status & mask) ? 1 : 0; + + rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS, + NULL, &status); + if (ACPI_FAILURE(rv)) { + pr_warn("Error reading Wireless status\n"); + return -EINVAL; + } + return !!(status & mask); +} + +/* + * WLAN + */ +static int asus_wlan_set(struct asus_laptop *asus, int status) +{ + if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) { + pr_warn("Error setting wlan status to %d\n", status); + return -EIO; + } + return 0; +} + +static ssize_t show_wlan(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS)); +} + +static ssize_t store_wlan(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sysfs_acpi_set(asus, buf, count, METHOD_WLAN); +} + +/* + * Bluetooth + */ +static int asus_bluetooth_set(struct asus_laptop *asus, int status) +{ + if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) { + pr_warn("Error setting bluetooth status to %d\n", status); + return -EIO; + } + return 0; +} + +static ssize_t show_bluetooth(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS)); +} + +static ssize_t store_bluetooth(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t count) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH); +} + +/* + * Wimax + */ +static int asus_wimax_set(struct asus_laptop *asus, int status) +{ + if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) { + pr_warn("Error setting wimax status to %d\n", status); + return -EIO; + } + return 0; +} + +static ssize_t show_wimax(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS)); +} + +static ssize_t store_wimax(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t count) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX); +} + +/* + * Wwan + */ +static int asus_wwan_set(struct asus_laptop *asus, int status) +{ + if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) { + pr_warn("Error setting wwan status to %d\n", status); + return -EIO; + } + return 0; +} + +static ssize_t show_wwan(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS)); +} + +static ssize_t store_wwan(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t count) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sysfs_acpi_set(asus, buf, count, METHOD_WWAN); +} + +/* + * Display + */ +static void asus_set_display(struct asus_laptop *asus, int value) +{ + /* no sanity check needed for now */ + if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value)) + pr_warn("Error setting display\n"); + return; +} + +/* + * Experimental support for display switching. As of now: 1 should activate + * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI. + * Any combination (bitwise) of these will suffice. I never actually tested 4 + * displays hooked up simultaneously, so be warned. See the acpi4asus README + * for more info. + */ +static ssize_t store_disp(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + int rv, value; + + rv = parse_arg(buf, count, &value); + if (rv > 0) + asus_set_display(asus, value); + return rv; +} + +/* + * Light Sens + */ +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"); + asus->light_switch = value; +} + +static ssize_t show_lssw(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sprintf(buf, "%d\n", asus->light_switch); +} + +static ssize_t store_lssw(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + int rv, value; + + rv = parse_arg(buf, count, &value); + if (rv > 0) + asus_als_switch(asus, value ? 1 : 0); + + return rv; +} + +static void asus_als_level(struct asus_laptop *asus, int value) +{ + if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value)) + pr_warn("Error setting light sensor level\n"); + asus->light_level = value; +} + +static ssize_t show_lslvl(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sprintf(buf, "%d\n", asus->light_level); +} + +static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + int rv, value; + + rv = parse_arg(buf, count, &value); + if (rv > 0) { + value = (0 < value) ? ((15 < value) ? 15 : value) : 0; + /* 0 <= value <= 15 */ + asus_als_level(asus, value); + } + + return rv; +} + +/* + * GPS + */ +static int asus_gps_status(struct asus_laptop *asus) +{ + unsigned long long status; + acpi_status rv = AE_OK; + + rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS, + NULL, &status); + if (ACPI_FAILURE(rv)) { + pr_warn("Error reading GPS status\n"); + return -ENODEV; + } + return !!status; +} + +static int asus_gps_switch(struct asus_laptop *asus, int status) +{ + const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF; + + if (write_acpi_int(asus->handle, meth, 0x02)) + return -ENODEV; + return 0; +} + +static ssize_t show_gps(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sprintf(buf, "%d\n", asus_gps_status(asus)); +} + +static ssize_t store_gps(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + int rv, value; + int ret; + + rv = parse_arg(buf, count, &value); + if (rv <= 0) + return -EINVAL; + ret = asus_gps_switch(asus, !!value); + if (ret) + return ret; + rfkill_set_sw_state(asus->gps_rfkill, !value); + return rv; +} + +/* + * rfkill + */ +static int asus_gps_rfkill_set(void *data, bool blocked) +{ + struct asus_laptop *asus = data; + + return asus_gps_switch(asus, !blocked); +} + +static const struct rfkill_ops asus_gps_rfkill_ops = { + .set_block = asus_gps_rfkill_set, +}; + +static void asus_rfkill_exit(struct asus_laptop *asus) +{ + if (asus->gps_rfkill) { + rfkill_unregister(asus->gps_rfkill); + rfkill_destroy(asus->gps_rfkill); + asus->gps_rfkill = NULL; + } +} + +static int asus_rfkill_init(struct asus_laptop *asus) +{ + int result; + + if (acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) || + acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) || + acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL)) + return 0; + + asus->gps_rfkill = rfkill_alloc("asus-gps", &asus->platform_device->dev, + RFKILL_TYPE_GPS, + &asus_gps_rfkill_ops, asus); + if (!asus->gps_rfkill) + return -EINVAL; + + result = rfkill_register(asus->gps_rfkill); + if (result) { + rfkill_destroy(asus->gps_rfkill); + asus->gps_rfkill = NULL; + } + + return result; +} + +/* + * Input device (i.e. hotkeys) + */ +static void asus_input_notify(struct asus_laptop *asus, int event) +{ + if (asus->inputdev) + sparse_keymap_report_event(asus->inputdev, event, 1, true); +} + +static int asus_input_init(struct asus_laptop *asus) +{ + struct input_dev *input; + int error; + + input = input_allocate_device(); + if (!input) { + pr_info("Unable to allocate input device\n"); + return -ENOMEM; + } + input->name = "Asus Laptop extra buttons"; + input->phys = ASUS_LAPTOP_FILE "/input0"; + input->id.bustype = BUS_HOST; + input->dev.parent = &asus->platform_device->dev; + + error = sparse_keymap_setup(input, asus_keymap, NULL); + if (error) { + pr_err("Unable to setup input device keymap\n"); + goto err_free_dev; + } + error = input_register_device(input); + if (error) { + pr_info("Unable to register input device\n"); + goto err_free_keymap; + } + + asus->inputdev = input; + return 0; + +err_free_keymap: + sparse_keymap_free(input); +err_free_dev: + input_free_device(input); + return error; +} + +static void asus_input_exit(struct asus_laptop *asus) +{ + if (asus->inputdev) { + sparse_keymap_free(asus->inputdev); + input_unregister_device(asus->inputdev); + } + asus->inputdev = NULL; +} + +/* + * ACPI driver + */ +static void asus_acpi_notify(struct acpi_device *device, u32 event) +{ + struct asus_laptop *asus = acpi_driver_data(device); + u16 count; + + /* TODO Find a better way to handle events count. */ + count = asus->event_count[event % 128]++; + acpi_bus_generate_proc_event(asus->device, event, count); + acpi_bus_generate_netlink_event(asus->device->pnp.device_class, + dev_name(&asus->device->dev), event, + count); + + /* Brightness events are special */ + if (event >= ATKD_BR_MIN && event <= ATKD_BR_MAX) { + + /* Ignore them completely if the acpi video driver is used */ + if (asus->backlight_device != NULL) { + /* Update the backlight device. */ + asus_backlight_notify(asus); + } + return ; + } + asus_input_notify(asus, event); +} + +static DEVICE_ATTR(infos, S_IRUGO, show_infos, NULL); +static DEVICE_ATTR(wlan, S_IRUGO | S_IWUSR, show_wlan, store_wlan); +static DEVICE_ATTR(bluetooth, S_IRUGO | S_IWUSR, + show_bluetooth, store_bluetooth); +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_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); + +static struct attribute *asus_attributes[] = { + &dev_attr_infos.attr, + &dev_attr_wlan.attr, + &dev_attr_bluetooth.attr, + &dev_attr_wimax.attr, + &dev_attr_wwan.attr, + &dev_attr_display.attr, + &dev_attr_ledd.attr, + &dev_attr_ls_level.attr, + &dev_attr_ls_switch.attr, + &dev_attr_gps.attr, + NULL +}; + +static mode_t asus_sysfs_is_visible(struct kobject *kobj, + struct attribute *attr, + int idx) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct platform_device *pdev = to_platform_device(dev); + struct asus_laptop *asus = platform_get_drvdata(pdev); + acpi_handle handle = asus->handle; + bool supported; + + if (attr == &dev_attr_wlan.attr) { + supported = !acpi_check_handle(handle, METHOD_WLAN, NULL); + + } else if (attr == &dev_attr_bluetooth.attr) { + supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL); + + } else if (attr == &dev_attr_display.attr) { + supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL); + + } else if (attr == &dev_attr_wimax.attr) { + supported = + !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL); + + } else if (attr == &dev_attr_wwan.attr) { + supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL); + + } else if (attr == &dev_attr_ledd.attr) { + supported = !acpi_check_handle(handle, METHOD_LEDD, NULL); + + } 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); + + } else if (attr == &dev_attr_gps.attr) { + supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) && + !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) && + !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL); + } else { + supported = true; + } + + return supported ? attr->mode : 0; +} + + +static const struct attribute_group asus_attr_group = { + .is_visible = asus_sysfs_is_visible, + .attrs = asus_attributes, +}; + +static int asus_platform_init(struct asus_laptop *asus) +{ + int result; + + asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, -1); + if (!asus->platform_device) + return -ENOMEM; + platform_set_drvdata(asus->platform_device, asus); + + result = platform_device_add(asus->platform_device); + if (result) + goto fail_platform_device; + + result = sysfs_create_group(&asus->platform_device->dev.kobj, + &asus_attr_group); + if (result) + goto fail_sysfs; + + return 0; + +fail_sysfs: + platform_device_del(asus->platform_device); +fail_platform_device: + platform_device_put(asus->platform_device); + return result; +} + +static void asus_platform_exit(struct asus_laptop *asus) +{ + sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group); + platform_device_unregister(asus->platform_device); +} + +static struct platform_driver platform_driver = { + .driver = { + .name = ASUS_LAPTOP_FILE, + .owner = THIS_MODULE, + } +}; + +/* + * This function is used to initialize the context with right values. In this + * method, we can make all the detection we want, and modify the asus_laptop + * struct + */ +static int asus_laptop_get_info(struct asus_laptop *asus) +{ + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *model = NULL; + unsigned long long bsts_result, hwrs_result; + char *string = NULL; + acpi_status status; + + /* + * Get DSDT headers early enough to allow for differentiating between + * models, but late enough to allow acpi_bus_register_driver() to fail + * before doing anything ACPI-specific. Should we encounter a machine, + * which needs special handling (i.e. its hotkey device has a different + * HID), this bit will be moved. + */ + status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info); + if (ACPI_FAILURE(status)) + pr_warn("Couldn't get the DSDT table header\n"); + + /* We have to write 0 on init this far for all ASUS models */ + if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) { + pr_err("Hotkey initialization failed\n"); + return -ENODEV; + } + + /* This needs to be called for some laptops to init properly */ + status = + acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result); + if (ACPI_FAILURE(status)) + pr_warn("Error calling BSTS\n"); + else if (bsts_result) + pr_notice("BSTS called, 0x%02x returned\n", + (uint) bsts_result); + + /* This too ... */ + if (write_acpi_int(asus->handle, "CWAP", wapf)) + pr_err("Error calling CWAP(%d)\n", wapf); + /* + * Try to match the object returned by INIT to the specific model. + * Handle every possible object (or the lack of thereof) the DSDT + * writers might throw at us. When in trouble, we pass NULL to + * asus_model_match() and try something completely different. + */ + if (buffer.pointer) { + model = buffer.pointer; + switch (model->type) { + case ACPI_TYPE_STRING: + string = model->string.pointer; + break; + case ACPI_TYPE_BUFFER: + string = model->buffer.pointer; + break; + default: + string = ""; + break; + } + } + asus->name = kstrdup(string, GFP_KERNEL); + if (!asus->name) { + kfree(buffer.pointer); + return -ENOMEM; + } + + if (*string) + pr_notice(" %s model detected\n", string); + + /* + * The HWRS method return informations about the hardware. + * 0x80 bit is for WLAN, 0x100 for Bluetooth, + * 0x40 for WWAN, 0x10 for WIMAX. + * The significance of others is yet to be found. + */ + status = + acpi_evaluate_integer(asus->handle, "HRWS", NULL, &hwrs_result); + if (!ACPI_FAILURE(status)) + pr_notice(" HRWS returned %x", (int)hwrs_result); + + if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL)) + asus->have_rsts = true; + + kfree(model); + + return AE_OK; +} + +static int __devinit asus_acpi_init(struct asus_laptop *asus) +{ + int result = 0; + + result = acpi_bus_get_status(asus->device); + if (result) + return result; + if (!asus->device->status.present) { + pr_err("Hotkey device not present, aborting\n"); + return -ENODEV; + } + + result = asus_laptop_get_info(asus); + if (result) + return result; + + /* WLED and BLED are on by default */ + if (bluetooth_status >= 0) + asus_bluetooth_set(asus, !!bluetooth_status); + + if (wlan_status >= 0) + asus_wlan_set(asus, !!wlan_status); + + if (wimax_status >= 0) + asus_wimax_set(asus, !!wimax_status); + + if (wwan_status >= 0) + asus_wwan_set(asus, !!wwan_status); + + /* Keyboard Backlight is on by default */ + if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL)) + asus_kled_set(asus, 1); + + /* LED display is off by default */ + asus->ledd_status = 0xFFF; + + /* Set initial values of light sensor and level */ + asus->light_switch = 0; /* Default to light sensor disabled */ + 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)) { + asus_als_switch(asus, asus->light_switch); + asus_als_level(asus, asus->light_level); + } + + return result; +} + +static void __devinit asus_dmi_check(void) +{ + const char *model; + + model = dmi_get_system_info(DMI_PRODUCT_NAME); + if (!model) + return; + + /* On L1400B WLED control the sound card, don't mess with it ... */ + if (strncmp(model, "L1400B", 6) == 0) { + wlan_status = -1; + } +} + +static bool asus_device_present; + +static int __devinit asus_acpi_add(struct acpi_device *device) +{ + struct asus_laptop *asus; + int result; + + pr_notice("Asus Laptop Support version %s\n", + ASUS_LAPTOP_VERSION); + asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL); + if (!asus) + return -ENOMEM; + asus->handle = device->handle; + strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME); + strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS); + device->driver_data = asus; + asus->device = device; + + asus_dmi_check(); + + result = asus_acpi_init(asus); + if (result) + goto fail_platform; + + /* + * Register the platform device first. It is used as a parent for the + * sub-devices below. + */ + result = asus_platform_init(asus); + if (result) + goto fail_platform; + + if (!acpi_video_backlight_support()) { + result = asus_backlight_init(asus); + if (result) + goto fail_backlight; + } else + pr_info("Backlight controlled by ACPI video driver\n"); + + result = asus_input_init(asus); + if (result) + goto fail_input; + + result = asus_led_init(asus); + if (result) + goto fail_led; + + result = asus_rfkill_init(asus); + if (result) + goto fail_rfkill; + + asus_device_present = true; + return 0; + +fail_rfkill: + asus_led_exit(asus); +fail_led: + asus_input_exit(asus); +fail_input: + asus_backlight_exit(asus); +fail_backlight: + asus_platform_exit(asus); +fail_platform: + kfree(asus->name); + kfree(asus); + + return result; +} + +static int asus_acpi_remove(struct acpi_device *device, int type) +{ + struct asus_laptop *asus = acpi_driver_data(device); + + asus_backlight_exit(asus); + asus_rfkill_exit(asus); + asus_led_exit(asus); + asus_input_exit(asus); + asus_platform_exit(asus); + + kfree(asus->name); + kfree(asus); + return 0; +} + +static const struct acpi_device_id asus_device_ids[] = { + {"ATK0100", 0}, + {"ATK0101", 0}, + {"", 0}, +}; +MODULE_DEVICE_TABLE(acpi, asus_device_ids); + +static struct acpi_driver asus_acpi_driver = { + .name = ASUS_LAPTOP_NAME, + .class = ASUS_LAPTOP_CLASS, + .owner = THIS_MODULE, + .ids = asus_device_ids, + .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, + .ops = { + .add = asus_acpi_add, + .remove = asus_acpi_remove, + .notify = asus_acpi_notify, + }, +}; + +static int __init asus_laptop_init(void) +{ + int result; + + result = platform_driver_register(&platform_driver); + if (result < 0) + return result; + + result = acpi_bus_register_driver(&asus_acpi_driver); + if (result < 0) + goto fail_acpi_driver; + if (!asus_device_present) { + result = -ENODEV; + goto fail_no_device; + } + return 0; + +fail_no_device: + acpi_bus_unregister_driver(&asus_acpi_driver); +fail_acpi_driver: + platform_driver_unregister(&platform_driver); + return result; +} + +static void __exit asus_laptop_exit(void) +{ + acpi_bus_unregister_driver(&asus_acpi_driver); + platform_driver_unregister(&platform_driver); +} + +module_init(asus_laptop_init); +module_exit(asus_laptop_exit); |