1 files changed, 272 insertions, 33 deletions

diff --git a/drivers/misc/fujitsu-laptop.c b/drivers/misc/fujitsu-laptop.c
index a7dd3e9fb79d..9c407ab9ba2b 100644
--- a/drivers/misc/fujitsu-laptop.c
+++ b/drivers/misc/fujitsu-laptop.c
@@ -3,6 +3,7 @@
 /*
   Copyright (C) 2007,2008 Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
   Copyright (C) 2008 Peter Gruber <nokos@gmx.net>
+  Copyright (C) 2008 Tony Vroon <tony@linx.net>
   Based on earlier work:
     Copyright (C) 2003 Shane Spencer <shane@bogomip.com>
     Adrian Yee <brewt-fujitsu@brewt.org>
@@ -65,8 +66,11 @@
 #include <linux/kfifo.h>
 #include <linux/video_output.h>
 #include <linux/platform_device.h>
+#ifdef CONFIG_LEDS_CLASS
+#include <linux/leds.h>
+#endif
 
-#define FUJITSU_DRIVER_VERSION "0.4.3"
+#define FUJITSU_DRIVER_VERSION "0.5.0"
 
 #define FUJITSU_LCD_N_LEVELS 8
 
@@ -83,6 +87,24 @@
 #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS     0x86
 #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS     0x87
 
+/* FUNC interface - command values */
+#define FUNC_RFKILL     0x1000
+#define FUNC_LEDS       0x1001
+#define FUNC_BUTTONS    0x1002
+#define FUNC_BACKLIGHT  0x1004
+
+/* FUNC interface - responses */
+#define UNSUPPORTED_CMD 0x80000000
+
+#ifdef CONFIG_LEDS_CLASS
+/* FUNC interface - LED control */
+#define FUNC_LED_OFF    0x1
+#define FUNC_LED_ON     0x30001
+#define KEYBOARD_LAMPS  0x100
+#define LOGOLAMP_POWERON 0x2000
+#define LOGOLAMP_ALWAYS  0x4000
+#endif
+
 /* Hotkey details */
 #define KEY1_CODE       0x410   /* codes for the keys in the GIRB register */
 #define KEY2_CODE       0x411
@@ -145,8 +167,9 @@ struct fujitsu_hotkey_t {
         struct platform_device *pf_device;
         struct kfifo *fifo;
         spinlock_t fifo_lock;
-
-        unsigned int irb;       /* info about the pressed buttons */
+        int rfkill_state;
+        int logolamp_registered;
+        int kblamps_registered;
 };
 
 static struct fujitsu_hotkey_t *fujitsu_hotkey;
@@ -154,12 +177,139 @@ static struct fujitsu_hotkey_t *fujitsu_hotkey;
 static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
                                        void *data);
 
+#ifdef CONFIG_LEDS_CLASS
+static enum led_brightness logolamp_get(struct led_classdev *cdev);
+static void logolamp_set(struct led_classdev *cdev,
+                               enum led_brightness brightness);
+
+struct led_classdev logolamp_led = {
+ .name = "fujitsu::logolamp",
+ .brightness_get = logolamp_get,
+ .brightness_set = logolamp_set
+};
+
+static enum led_brightness kblamps_get(struct led_classdev *cdev);
+static void kblamps_set(struct led_classdev *cdev,
+                               enum led_brightness brightness);
+
+struct led_classdev kblamps_led = {
+ .name = "fujitsu::kblamps",
+ .brightness_get = kblamps_get,
+ .brightness_set = kblamps_set
+};
+#endif
+
 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
 static u32 dbg_level = 0x03;
 #endif
 
 static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data);
 
+/* Fujitsu ACPI interface function */
+
+static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
+{
+        acpi_status status = AE_OK;
+        union acpi_object params[4] = {
+        { .type = ACPI_TYPE_INTEGER },
+        { .type = ACPI_TYPE_INTEGER },
+        { .type = ACPI_TYPE_INTEGER },
+        { .type = ACPI_TYPE_INTEGER }
+        };
+        struct acpi_object_list arg_list = { 4, &params[0] };
+        struct acpi_buffer output;
+        union acpi_object out_obj;
+        acpi_handle handle = NULL;
+
+        status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle);
+        if (ACPI_FAILURE(status)) {
+                vdbg_printk(FUJLAPTOP_DBG_ERROR,
+                                "FUNC interface is not present\n");
+                return -ENODEV;
+        }
+
+        params[0].integer.value = cmd;
+        params[1].integer.value = arg0;
+        params[2].integer.value = arg1;
+        params[3].integer.value = arg2;
+
+        output.length = sizeof(out_obj);
+        output.pointer = &out_obj;
+
+        status = acpi_evaluate_object(handle, NULL, &arg_list, &output);
+        if (ACPI_FAILURE(status)) {
+                vdbg_printk(FUJLAPTOP_DBG_WARN,
+                        "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
+                                cmd, arg0, arg1, arg2);
+                return -ENODEV;
+        }
+
+        if (out_obj.type != ACPI_TYPE_INTEGER) {
+                vdbg_printk(FUJLAPTOP_DBG_WARN,
+                        "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) did not "
+                        "return an integer\n",
+                        cmd, arg0, arg1, arg2);
+                return -ENODEV;
+        }
+
+        vdbg_printk(FUJLAPTOP_DBG_TRACE,
+                "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
+                        cmd, arg0, arg1, arg2, (int)out_obj.integer.value);
+        return out_obj.integer.value;
+}
+
+#ifdef CONFIG_LEDS_CLASS
+/* LED class callbacks */
+
+static void logolamp_set(struct led_classdev *cdev,
+                               enum led_brightness brightness)
+{
+        if (brightness >= LED_FULL) {
+                call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
+                call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON);
+        } else if (brightness >= LED_HALF) {
+                call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
+                call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF);
+        } else {
+                call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF);
+        }
+}
+
+static void kblamps_set(struct led_classdev *cdev,
+                               enum led_brightness brightness)
+{
+        if (brightness >= LED_FULL)
+                call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
+        else
+                call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
+}
+
+static enum led_brightness logolamp_get(struct led_classdev *cdev)
+{
+        enum led_brightness brightness = LED_OFF;
+        int poweron, always;
+
+        poweron = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0);
+        if (poweron == FUNC_LED_ON) {
+                brightness = LED_HALF;
+                always = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0);
+                if (always == FUNC_LED_ON)
+                        brightness = LED_FULL;
+        }
+        return brightness;
+}
+
+static enum led_brightness kblamps_get(struct led_classdev *cdev)
+{
+        enum led_brightness brightness = LED_OFF;
+
+        if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON)
+                brightness = LED_FULL;
+
+        return brightness;
+}
+#endif
+
 /* Hardware access for LCD brightness control */
 
 static int set_lcd_level(int level)
@@ -297,10 +447,25 @@ static int bl_get_brightness(struct backlight_device *b)
 
 static int bl_update_status(struct backlight_device *b)
 {
+        int ret;
+        if (b->props.power == 4)
+                ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
+        else
+                ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
+        if (ret != 0)
+                vdbg_printk(FUJLAPTOP_DBG_ERROR,
+                        "Unable to adjust backlight power, error code %i\n",
+                        ret);
+
         if (use_alt_lcd_levels)
-                return set_lcd_level_alt(b->props.brightness);
+                ret = set_lcd_level_alt(b->props.brightness);
         else
-                return set_lcd_level(b->props.brightness);
+                ret = set_lcd_level(b->props.brightness);
+        if (ret != 0)
+                vdbg_printk(FUJLAPTOP_DBG_ERROR,
+                        "Unable to adjust LCD brightness, error code %i\n",
+                        ret);
+        return ret;
 }
 
 static struct backlight_ops fujitsubl_ops = {
@@ -382,42 +547,64 @@ static ssize_t store_lcd_level(struct device *dev,
         return count;
 }
 
-/* Hardware access for hotkey device */
-
-static int get_irb(void)
+static ssize_t
+ignore_store(struct device *dev,
+             struct device_attribute *attr, const char *buf, size_t count)
 {
-        unsigned long long state = 0;
-        acpi_status status = AE_OK;
-
-        vdbg_printk(FUJLAPTOP_DBG_TRACE, "Get irb\n");
-
-        status =
-            acpi_evaluate_integer(fujitsu_hotkey->acpi_handle, "GIRB", NULL,
-                                  &state);
-        if (status < 0)
-                return status;
+        return count;
+}
 
-        fujitsu_hotkey->irb = state;
+static ssize_t
+show_lid_state(struct device *dev,
+                        struct device_attribute *attr, char *buf)
+{
+        if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD)
+                return sprintf(buf, "unknown\n");
+        if (fujitsu_hotkey->rfkill_state & 0x100)
+                return sprintf(buf, "open\n");
+        else
+                return sprintf(buf, "closed\n");
+}
 
-        return fujitsu_hotkey->irb;
+static ssize_t
+show_dock_state(struct device *dev,
+                        struct device_attribute *attr, char *buf)
+{
+        if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD)
+                return sprintf(buf, "unknown\n");
+        if (fujitsu_hotkey->rfkill_state & 0x200)
+                return sprintf(buf, "docked\n");
+        else
+                return sprintf(buf, "undocked\n");
 }
 
 static ssize_t
-ignore_store(struct device *dev,
-             struct device_attribute *attr, const char *buf, size_t count)
+show_radios_state(struct device *dev,
+                        struct device_attribute *attr, char *buf)
 {
-        return count;
+        if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD)
+                return sprintf(buf, "unknown\n");
+        if (fujitsu_hotkey->rfkill_state & 0x20)
+                return sprintf(buf, "on\n");
+        else
+                return sprintf(buf, "killed\n");
 }
 
 static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store);
 static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed,
                    ignore_store);
 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
+static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store);
+static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store);
+static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store);
 
 static struct attribute *fujitsupf_attributes[] = {
         &dev_attr_brightness_changed.attr,
         &dev_attr_max_brightness.attr,
         &dev_attr_lcd_level.attr,
+        &dev_attr_lid.attr,
+        &dev_attr_dock.attr,
+        &dev_attr_radios.attr,
         NULL
 };
 
@@ -771,7 +958,8 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
         input->id.bustype = BUS_HOST;
         input->id.product = 0x06;
         input->dev.parent = &device->dev;
-        input->evbit[0] = BIT(EV_KEY);
+
+        set_bit(EV_KEY, input->evbit);
         set_bit(fujitsu->keycode1, input->keybit);
         set_bit(fujitsu->keycode2, input->keybit);
         set_bit(fujitsu->keycode3, input->keybit);
@@ -803,10 +991,44 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
                         printk(KERN_ERR "_INI Method failed\n");
         }
 
-        i = 0;                  /* Discard hotkey ringbuffer */
-        while (get_irb() != 0 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) ;
+        i = 0;
+        while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0
+                && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE)
+                ; /* No action, result is discarded */
         vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i);
 
+        fujitsu_hotkey->rfkill_state =
+                call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
+
+        /* Suspect this is a keymap of the application panel, print it */
+        printk(KERN_INFO "fujitsu-laptop: BTNI: [0x%x]\n",
+                call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
+
+        #ifdef CONFIG_LEDS_CLASS
+        if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
+                result = led_classdev_register(&fujitsu->pf_device->dev,
+                                                &logolamp_led);
+                if (result == 0) {
+                        fujitsu_hotkey->logolamp_registered = 1;
+                } else {
+                        printk(KERN_ERR "fujitsu-laptop: Could not register "
+                        "LED handler for logo lamp, error %i\n", result);
+                }
+        }
+
+        if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
+           (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
+                result = led_classdev_register(&fujitsu->pf_device->dev,
+                                                &kblamps_led);
+                if (result == 0) {
+                        fujitsu_hotkey->kblamps_registered = 1;
+                } else {
+                        printk(KERN_ERR "fujitsu-laptop: Could not register "
+                        "LED handler for keyboard lamps, error %i\n", result);
+                }
+        }
+        #endif
+
         return result;
 
 end:
@@ -852,16 +1074,15 @@ static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
 
         input = fujitsu_hotkey->input;
 
-        vdbg_printk(FUJLAPTOP_DBG_TRACE, "Hotkey event\n");
+        fujitsu_hotkey->rfkill_state =
+                call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
 
         switch (event) {
         case ACPI_FUJITSU_NOTIFY_CODE1:
                 i = 0;
-                while ((irb = get_irb()) != 0
-                       && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
-                        vdbg_printk(FUJLAPTOP_DBG_TRACE, "GIRB result [%x]\n",
-                                    irb);
-
+                while ((irb =
+                        call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0
+                                && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
                         switch (irb & 0x4ff) {
                         case KEY1_CODE:
                                 keycode = fujitsu->keycode1;
@@ -1035,6 +1256,15 @@ static int __init fujitsu_init(void)
                 goto fail_hotkey1;
         }
 
+        /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
+
+        if (!acpi_video_backlight_support()) {
+                if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3)
+                        fujitsu->bl_device->props.power = 4;
+                else
+                        fujitsu->bl_device->props.power = 0;
+        }
+
         printk(KERN_INFO "fujitsu-laptop: driver " FUJITSU_DRIVER_VERSION
                " successfully loaded.\n");
 
@@ -1074,6 +1304,14 @@ fail_acpi:
 
 static void __exit fujitsu_cleanup(void)
 {
+        #ifdef CONFIG_LEDS_CLASS
+        if (fujitsu_hotkey->logolamp_registered != 0)
+                led_classdev_unregister(&logolamp_led);
+
+        if (fujitsu_hotkey->kblamps_registered != 0)
+                led_classdev_unregister(&kblamps_led);
+        #endif
+
         sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
                            &fujitsupf_attribute_group);
         platform_device_unregister(fujitsu->pf_device);
@@ -1108,12 +1346,13 @@ module_param_named(debug, dbg_level, uint, 0644);
 MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
 #endif
 
-MODULE_AUTHOR("Jonathan Woithe, Peter Gruber");
+MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
 MODULE_DESCRIPTION("Fujitsu laptop extras support");
 MODULE_VERSION(FUJITSU_DRIVER_VERSION);
 MODULE_LICENSE("GPL");
 
 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
+MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
 
 static struct pnp_device_id pnp_ids[] = {