--- /dev/null
+/*
+ * asus-laptop.c - Asus Laptop Support
+ *
+ *
+ * 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
+ * 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/input-polldev.h>
+#include <linux/rfkill.h>
+#include <linux/slab.h>
+#include <linux/dmi.h>
+#include <linux/acpi.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:
+ * Bit | Bluetooth | WLAN
+ * 0 | Hardware | Hardware
+ * 1 | Hardware | Software
+ * 4 | Software | Software
+ */
+static uint wapf = 1;
+module_param(wapf, uint, 0444);
+MODULE_PARM_DESC(wapf, "WAPF value");
+
+static char *wled_type = "unknown";
+static char *bled_type = "unknown";
+
+module_param(wled_type, charp, 0444);
+MODULE_PARM_DESC(wled_type, "Set the wled type on boot "
+ "(unknown, led or rfkill). "
+ "default is unknown");
+
+module_param(bled_type, charp, 0444);
+MODULE_PARM_DESC(bled_type, "Set the bled type on boot "
+ "(unknown, led or rfkill). "
+ "default is unknown");
+
+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");
+
+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");
+
+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
+ */
+#define ATKD_BRNUP_MIN 0x10
+#define ATKD_BRNUP_MAX 0x1f
+#define ATKD_BRNDOWN_MIN 0x20
+#define ATKD_BRNDOWN_MAX 0x2f
+#define ATKD_BRNDOWN 0x20
+#define ATKD_BRNUP 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 */
+
+/* WLED and BLED type */
+#define TYPE_UNKNOWN 0
+#define TYPE_LED 1
+#define TYPE_RFKILL 2
+
+/* 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"
+
+/* 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
+ */
+struct asus_led {
+ int wk;
+ struct work_struct work;
+ struct led_classdev led;
+ struct asus_laptop *asus;
+ const char *method;
+};
+
+/*
+ * Same thing for rfkill
+ */
+struct asus_rfkill {
+ /* type of control. Maps to PEGA_* values or *_RSTS */
+ int control_id;
+ struct rfkill *rfkill;
+ struct asus_laptop *asus;
+};
+
+/*
+ * 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 input_polled_dev *pega_accel_poll;
+
+ struct asus_led wled;
+ struct asus_led bled;
+ 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 wled_type;
+ int bled_type;
+ 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 asus_rfkill wlan;
+ struct asus_rfkill bluetooth;
+ struct asus_rfkill wwan;
+ struct asus_rfkill wimax;
+ struct asus_rfkill gps;
+
+ 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, 0x09, { KEY_PROG2 } }, /* Dock */
+ {KE_KEY, 0x17, { KEY_ZOOM } },
+ {KE_KEY, 0x1f, { KEY_BATTERY } },
+ /* End of Lenovo SL Specific keycodes */
+ {KE_KEY, ATKD_BRNDOWN, { KEY_BRIGHTNESSDOWN } },
+ {KE_KEY, ATKD_BRNUP, { KEY_BRIGHTNESSUP } },
+ {KE_KEY, 0x30, { KEY_VOLUMEUP } },
+ {KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
+ {KE_KEY, 0x32, { KEY_MUTE } },
+ {KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
+ {KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
+ {KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
+ {KE_KEY, 0x41, { KEY_NEXTSONG } },
+ {KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
+ {KE_KEY, 0x45, { KEY_PLAYPAUSE } },
+ {KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
+ {KE_KEY, 0x50, { KEY_EMAIL } },
+ {KE_KEY, 0x51, { KEY_WWW } },
+ {KE_KEY, 0x55, { KEY_CALC } },
+ {KE_IGNORE, 0x57, }, /* Battery mode */
+ {KE_IGNORE, 0x58, }, /* AC mode */
+ {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */
+ {KE_KEY, 0x5D, { KEY_WLAN } }, /* WLAN Toggle */
+ {KE_KEY, 0x5E, { KEY_WLAN } }, /* WLAN Enable */
+ {KE_KEY, 0x5F, { KEY_WLAN } }, /* WLAN Disable */
+ {KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
+ {KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
+ {KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
+ {KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
+ {KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
+ {KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
+ {KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
+ {KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
+ {KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad */
+ {KE_KEY, 0x6C, { KEY_SLEEP } }, /* Suspend */
+ {KE_KEY, 0x6D, { KEY_SLEEP } }, /* Hibernate */
+ {KE_IGNORE, 0x6E, }, /* Low Battery notification */
+ {KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
+ {KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
+ {KE_KEY, 0x82, { KEY_CAMERA } },
+ {KE_KEY, 0x88, { KEY_RFKILL } }, /* Radio Toggle Key */
+ {KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
+ {KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
+ {KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
+ {KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
+ {KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
+ {KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
+ {KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
+ {KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
+ {KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
+ {KE_KEY, 0x95, { KEY_MEDIA } },
+ {KE_KEY, 0x99, { KEY_PHONE } },
+ {KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
+ {KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
+ {KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
+ {KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
+ {KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
+ {KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
+ {KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
+ {KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
+ {KE_KEY, 0xB5, { KEY_CALC } },
+ {KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
+ {KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
+ {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;
+}
+
+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)
+{
+ 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 (!IS_ERR_OR_NULL(asus->wled.led.dev))
+ led_classdev_unregister(&asus->wled.led);
+ if (!IS_ERR_OR_NULL(asus->bled.led.dev))
+ led_classdev_unregister(&asus->bled.led);
+ if (!IS_ERR_OR_NULL(asus->mled.led.dev))
+ led_classdev_unregister(&asus->mled.led);
+ if (!IS_ERR_OR_NULL(asus->tled.led.dev))
+ led_classdev_unregister(&asus->tled.led);
+ if (!IS_ERR_OR_NULL(asus->pled.led.dev))
+ led_classdev_unregister(&asus->pled.led);
+ if (!IS_ERR_OR_NULL(asus->rled.led.dev))
+ led_classdev_unregister(&asus->rled.led);
+ if (!IS_ERR_OR_NULL(asus->gled.led.dev))
+ led_classdev_unregister(&asus->gled.led);
+ if (!IS_ERR_OR_NULL(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 = 0;
+
+ /*
+ * 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
+ * potentially bad time, such as a timer interrupt.
+ */
+ asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
+ if (!asus->led_workqueue)
+ return -ENOMEM;
+
+ if (asus->wled_type == TYPE_LED)
+ r = asus_led_register(asus, &asus->wled, "asus::wlan",
+ METHOD_WLAN);
+ if (r)
+ goto error;
+ if (asus->bled_type == TYPE_LED)
+ r = asus_led_register(asus, &asus->bled, "asus::bluetooth",
+ METHOD_BLUETOOTH);
+ if (r)
+ goto error;
+ 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)
+{
+ 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 infos_show(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.
+ * 0x40 for WWAN, 0x10 for WIMAX.
+ * The significance of others is yet to be found.
+ * We don't currently use this for device detection, and it
+ * takes several seconds to run on some systems.
+ */
+ rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp);
+ if (!ACPI_FAILURE(rv))
+ len += sprintf(page + len, "HWRS 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 DEVICE_ATTR_RO(infos);
+
+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 ledd_show(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 ledd_store(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;
+}
+static DEVICE_ATTR_RW(ledd);
+
+/*
+ * 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 wlan_show(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 wlan_store(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);
+}
+static DEVICE_ATTR_RW(wlan);
+
+/*e
+ * 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 bluetooth_show(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 bluetooth_store(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);
+}
+static DEVICE_ATTR_RW(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 wimax_show(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 wimax_store(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);
+}
+static DEVICE_ATTR_RW(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 wwan_show(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 wwan_store(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);
+}
+static DEVICE_ATTR_RW(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 display_store(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;
+}
+static DEVICE_ATTR_WO(display);
+
+/*
+ * Light Sens
+ */
+static void asus_als_switch(struct asus_laptop *asus, int value)
+{
+ 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;
+}
+
+static ssize_t ls_switch_show(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 ls_switch_store(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 DEVICE_ATTR_RW(ls_switch);
+
+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 ls_level_show(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 ls_level_store(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;
+}
+static DEVICE_ATTR_RW(ls_level);
+
+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 ls_value_show(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;
+}
+static DEVICE_ATTR_RO(ls_value);
+
+/*
+ * 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 gps_show(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 gps_store(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;
+}
+static DEVICE_ATTR_RW(gps);
+
+/*
+ * 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 int asus_rfkill_set(void *data, bool blocked)
+{
+ struct asus_rfkill *rfk = data;
+ struct asus_laptop *asus = rfk->asus;
+
+ if (rfk->control_id == WL_RSTS)
+ return asus_wlan_set(asus, !blocked);
+ else if (rfk->control_id == BT_RSTS)
+ return asus_bluetooth_set(asus, !blocked);
+ else if (rfk->control_id == WM_RSTS)
+ return asus_wimax_set(asus, !blocked);
+ else if (rfk->control_id == WW_RSTS)
+ return asus_wwan_set(asus, !blocked);
+
+ return -EINVAL;
+}
+
+static const struct rfkill_ops asus_rfkill_ops = {
+ .set_block = asus_rfkill_set,
+};
+
+static void asus_rfkill_terminate(struct asus_rfkill *rfk)
+{
+ if (!rfk->rfkill)
+ return ;
+
+ rfkill_unregister(rfk->rfkill);
+ rfkill_destroy(rfk->rfkill);
+ rfk->rfkill = NULL;
+}
+
+static void asus_rfkill_exit(struct asus_laptop *asus)
+{
+ asus_rfkill_terminate(&asus->wwan);
+ asus_rfkill_terminate(&asus->bluetooth);
+ asus_rfkill_terminate(&asus->wlan);
+ asus_rfkill_terminate(&asus->gps);
+}
+
+static int asus_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
+ const char *name, int control_id, int type,
+ const struct rfkill_ops *ops)
+{
+ int result;
+
+ rfk->control_id = control_id;
+ rfk->asus = asus;
+ rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev,
+ type, ops, rfk);
+ if (!rfk->rfkill)
+ return -EINVAL;
+
+ result = rfkill_register(rfk->rfkill);
+ if (result) {
+ rfkill_destroy(rfk->rfkill);
+ rfk->rfkill = NULL;
+ }
+
+ return result;
+}
+
+static int asus_rfkill_init(struct asus_laptop *asus)
+{
+ int result = 0;
+
+ if (asus->is_pega_lucid)
+ return -ENODEV;
+
+ 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))
+ result = asus_rfkill_setup(asus, &asus->gps, "asus-gps",
+ -1, RFKILL_TYPE_GPS,
+ &asus_gps_rfkill_ops);
+ if (result)
+ goto exit;
+
+
+ if (!acpi_check_handle(asus->handle, METHOD_WLAN, NULL) &&
+ asus->wled_type == TYPE_RFKILL)
+ result = asus_rfkill_setup(asus, &asus->wlan, "asus-wlan",
+ WL_RSTS, RFKILL_TYPE_WLAN,
+ &asus_rfkill_ops);
+ if (result)
+ goto exit;
+
+ if (!acpi_check_handle(asus->handle, METHOD_BLUETOOTH, NULL) &&
+ asus->bled_type == TYPE_RFKILL)
+ result = asus_rfkill_setup(asus, &asus->bluetooth,
+ "asus-bluetooth", BT_RSTS,
+ RFKILL_TYPE_BLUETOOTH,
+ &asus_rfkill_ops);
+ if (result)
+ goto exit;
+
+ if (!acpi_check_handle(asus->handle, METHOD_WWAN, NULL))
+ result = asus_rfkill_setup(asus, &asus->wwan, "asus-wwan",
+ WW_RSTS, RFKILL_TYPE_WWAN,
+ &asus_rfkill_ops);
+ if (result)
+ goto exit;
+
+ if (!acpi_check_handle(asus->handle, METHOD_WIMAX, NULL))
+ result = asus_rfkill_setup(asus, &asus->wimax, "asus-wimax",
+ WM_RSTS, RFKILL_TYPE_WIMAX,
+ &asus_rfkill_ops);
+ if (result)
+ goto exit;
+
+exit:
+ if (result)
+ asus_rfkill_exit(asus);
+
+ return result;
+}
+
+static int pega_rfkill_set(void *data, bool blocked)
+{
+ struct asus_rfkill *rfk = data;
+
+ int ret = asus_pega_lucid_set(rfk->asus, rfk->control_id, !blocked);
+ return ret;
+}
+
+static const struct rfkill_ops pega_rfkill_ops = {
+ .set_block = pega_rfkill_set,
+};
+
+static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk,
+ const char *name, int controlid, int rfkill_type)
+{
+ return asus_rfkill_setup(asus, rfk, name, controlid, rfkill_type,
+ &pega_rfkill_ops);
+}
+
+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->wlan, "pega-wlan",
+ PEGA_WLAN, RFKILL_TYPE_WLAN);
+ if(ret)
+ goto exit;
+
+ ret = pega_rfkill_setup(asus, &asus->bluetooth, "pega-bt",
+ PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH);
+ if(ret)
+ goto exit;
+
+ ret = pega_rfkill_setup(asus, &asus->wwan, "pega-wwan",
+ PEGA_WWAN, RFKILL_TYPE_WWAN);
+
+exit:
+ if (ret)
+ asus_rfkill_exit(asus);
+
+ return ret;
+}
+
+/*
+ * Input device (i.e. hotkeys)
+ */
+static void asus_input_notify(struct asus_laptop *asus, int event)
+{
+ if (!asus->inputdev)
+ return ;
+ if (!sparse_keymap_report_event(asus->inputdev, event, 1, true))
+ pr_info("Unknown key %x pressed\n", event);
+}
+
+static int asus_input_init(struct asus_laptop *asus)
+{
+ struct input_dev *input;
+ int error;
+
+ input = input_allocate_device();
+ if (!input)
+ 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_warn("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_netlink_event(asus->device->pnp.device_class,
+ dev_name(&asus->device->dev), event,
+ count);
+
+ if (event >= ATKD_BRNUP_MIN && event <= ATKD_BRNUP_MAX)
+ event = ATKD_BRNUP;
+ else if (event >= ATKD_BRNDOWN_MIN &&
+ event <= ATKD_BRNDOWN_MAX)
+ event = ATKD_BRNDOWN;
+
+ /* Brightness events are special */
+ if (event == ATKD_BRNDOWN || event == ATKD_BRNUP) {
+ if (asus->backlight_device != NULL) {
+ /* Update the backlight device. */
+ asus_backlight_notify(asus);
+ 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);
+}
+
+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_value.attr,
+ &dev_attr_ls_level.attr,
+ &dev_attr_ls_switch.attr,
+ &dev_attr_gps.attr,
+ NULL
+};
+
+static umode_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 (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 ? attr->mode : 0;
+ }
+
+normal:
+ 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_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) &&
+ !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,
+ },
+};
+
+/*
+ * 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;
+ 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);
+
+ if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
+ asus->have_rsts = true;
+
+ kfree(model);
+
+ return AE_OK;
+}
+
+static int 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;
+
+ if (!strcmp(bled_type, "led"))
+ asus->bled_type = TYPE_LED;
+ else if (!strcmp(bled_type, "rfkill"))
+ asus->bled_type = TYPE_RFKILL;
+
+ if (!strcmp(wled_type, "led"))
+ asus->wled_type = TYPE_LED;
+ else if (!strcmp(wled_type, "rfkill"))
+ asus->wled_type = TYPE_RFKILL;
+
+ 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 = !!als_status;
+ asus->light_level = 5; /* level 5 for sensor sensitivity */
+
+ 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);
+ }
+
+ return result;
+}
+
+static void 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 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;
+
+ /*
+ * 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;
+
+ 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 && result != -ENODEV)
+ 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:
+ asus_input_exit(asus);
+fail_input:
+ asus_backlight_exit(asus);
+fail_backlight:
+ asus_platform_exit(asus);
+fail_platform:
+ kfree(asus);
+
+ return result;
+}
+
+static int asus_acpi_remove(struct acpi_device *device)
+{
+ struct asus_laptop *asus = acpi_driver_data(device);
+
+ asus_backlight_exit(asus);
+ asus_rfkill_exit(asus);
+ asus_led_exit(asus);
+ asus_input_exit(asus);
+ pega_accel_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);
Code Review / kvmfornfv.git / blobdiff