Merge tag 'pm-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
[linux-2.6-microblaze.git] / drivers / platform / x86 / sony-laptop.c
index c7a2362..9363969 100644 (file)
@@ -973,7 +973,7 @@ static ssize_t sony_nc_sysfs_store(struct device *dev,
                               struct device_attribute *attr,
                               const char *buffer, size_t count)
 {
-       unsigned long value = 0;
+       int value;
        int ret = 0;
        struct sony_nc_value *item =
            container_of(attr, struct sony_nc_value, devattr);
@@ -984,7 +984,7 @@ static ssize_t sony_nc_sysfs_store(struct device *dev,
        if (count > 31)
                return -EINVAL;
 
-       if (kstrtoul(buffer, 10, &value))
+       if (kstrtoint(buffer, 10, &value))
                return -EINVAL;
 
        if (item->validate)
@@ -994,7 +994,7 @@ static ssize_t sony_nc_sysfs_store(struct device *dev,
                return value;
 
        ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
-                       (int *)&value, NULL);
+                              &value, NULL);
        if (ret < 0)
                return -EIO;
 
@@ -1010,6 +1010,7 @@ static ssize_t sony_nc_sysfs_store(struct device *dev,
 struct sony_backlight_props {
        struct backlight_device *dev;
        int                     handle;
+       int                     cmd_base;
        u8                      offset;
        u8                      maxlvl;
 };
@@ -1037,7 +1038,7 @@ static int sony_nc_get_brightness_ng(struct backlight_device *bd)
        struct sony_backlight_props *sdev =
                (struct sony_backlight_props *)bl_get_data(bd);
 
-       sony_call_snc_handle(sdev->handle, 0x0200, &result);
+       sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
 
        return (result & 0xff) - sdev->offset;
 }
@@ -1049,7 +1050,8 @@ static int sony_nc_update_status_ng(struct backlight_device *bd)
                (struct sony_backlight_props *)bl_get_data(bd);
 
        value = bd->props.brightness + sdev->offset;
-       if (sony_call_snc_handle(sdev->handle, 0x0100 | (value << 16), &result))
+       if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
+                               &result))
                return -EIO;
 
        return value;
@@ -1172,6 +1174,11 @@ static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
 /*
  * ACPI callbacks
  */
+enum event_types {
+       HOTKEY = 1,
+       KILLSWITCH,
+       GFX_SWITCH
+};
 static void sony_nc_notify(struct acpi_device *device, u32 event)
 {
        u32 real_ev = event;
@@ -1196,7 +1203,7 @@ static void sony_nc_notify(struct acpi_device *device, u32 event)
                /* hotkey event */
                case 0x0100:
                case 0x0127:
-                       ev_type = 1;
+                       ev_type = HOTKEY;
                        real_ev = sony_nc_hotkeys_decode(event, handle);
 
                        if (real_ev > 0)
@@ -1216,7 +1223,7 @@ static void sony_nc_notify(struct acpi_device *device, u32 event)
                         * update the rfkill device status when the
                         * switch is moved.
                         */
-                       ev_type = 2;
+                       ev_type = KILLSWITCH;
                        sony_call_snc_handle(handle, 0x0100, &result);
                        real_ev = result & 0x03;
 
@@ -1226,6 +1233,24 @@ static void sony_nc_notify(struct acpi_device *device, u32 event)
 
                        break;
 
+               case 0x0128:
+               case 0x0146:
+                       /* Hybrid GFX switching */
+                       sony_call_snc_handle(handle, 0x0000, &result);
+                       dprintk("GFX switch event received (reason: %s)\n",
+                                       (result & 0x01) ?
+                                       "switch change" : "unknown");
+
+                       /* verify the switch state
+                        * 1: discrete GFX
+                        * 0: integrated GFX
+                        */
+                       sony_call_snc_handle(handle, 0x0100, &result);
+
+                       ev_type = GFX_SWITCH;
+                       real_ev = result & 0xff;
+                       break;
+
                default:
                        dprintk("Unknown event 0x%x for handle 0x%x\n",
                                        event, handle);
@@ -1238,7 +1263,7 @@ static void sony_nc_notify(struct acpi_device *device, u32 event)
 
        } else {
                /* old style event */
-               ev_type = 1;
+               ev_type = HOTKEY;
                sony_laptop_report_input_event(real_ev);
        }
 
@@ -1895,32 +1920,33 @@ static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
         *  bits 4,5: store the limit into the EC
         *  bits 6,7: store the limit into the battery
         */
+       cmd = 0;
 
-       /*
-        * handle 0x0115 should allow storing on battery too;
-        * handle 0x0136 same as 0x0115 + health status;
-        * handle 0x013f, same as 0x0136 but no storing on the battery
-        *
-        * Store only inside the EC for now, regardless the handle number
-        */
-       if (value == 0)
-               /* disable limits */
-               cmd = 0x0;
+       if (value > 0) {
+               if (value <= 50)
+                       cmd = 0x20;
 
-       else if (value <= 50)
-               cmd = 0x21;
+               else if (value <= 80)
+                       cmd = 0x10;
 
-       else if (value <= 80)
-               cmd = 0x11;
+               else if (value <= 100)
+                       cmd = 0x30;
 
-       else if (value <= 100)
-               cmd = 0x31;
+               else
+                       return -EINVAL;
 
-       else
-               return -EINVAL;
+               /*
+                * handle 0x0115 should allow storing on battery too;
+                * handle 0x0136 same as 0x0115 + health status;
+                * handle 0x013f, same as 0x0136 but no storing on the battery
+                */
+               if (bcare_ctl->handle != 0x013f)
+                       cmd = cmd | (cmd << 2);
 
-       if (sony_call_snc_handle(bcare_ctl->handle, (cmd << 0x10) | 0x0100,
-                               &result))
+               cmd = (cmd | 0x1) << 0x10;
+       }
+
+       if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
                return -EIO;
 
        return count;
@@ -2115,7 +2141,7 @@ static ssize_t sony_nc_thermal_mode_show(struct device *dev,
                struct device_attribute *attr, char *buffer)
 {
        ssize_t count = 0;
-       unsigned int mode = sony_nc_thermal_mode_get();
+       int mode = sony_nc_thermal_mode_get();
 
        if (mode < 0)
                return mode;
@@ -2474,6 +2500,7 @@ static void sony_nc_backlight_ng_read_limits(int handle,
 {
        u64 offset;
        int i;
+       int lvl_table_len = 0;
        u8 min = 0xff, max = 0x00;
        unsigned char buffer[32] = { 0 };
 
@@ -2482,8 +2509,6 @@ static void sony_nc_backlight_ng_read_limits(int handle,
        props->maxlvl = 0xff;
 
        offset = sony_find_snc_handle(handle);
-       if (offset < 0)
-               return;
 
        /* try to read the boundaries from ACPI tables, if we fail the above
         * defaults should be reasonable
@@ -2493,11 +2518,21 @@ static void sony_nc_backlight_ng_read_limits(int handle,
        if (i < 0)
                return;
 
+       switch (handle) {
+       case 0x012f:
+       case 0x0137:
+               lvl_table_len = 9;
+               break;
+       case 0x143:
+               lvl_table_len = 16;
+               break;
+       }
+
        /* the buffer lists brightness levels available, brightness levels are
         * from position 0 to 8 in the array, other values are used by ALS
         * control.
         */
-       for (i = 0; i < 9 && i < ARRAY_SIZE(buffer); i++) {
+       for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
 
                dprintk("Brightness level: %d\n", buffer[i]);
 
@@ -2522,16 +2557,24 @@ static void sony_nc_backlight_setup(void)
        const struct backlight_ops *ops = NULL;
        struct backlight_properties props;
 
-       if (sony_find_snc_handle(0x12f) != -1) {
+       if (sony_find_snc_handle(0x12f) >= 0) {
                ops = &sony_backlight_ng_ops;
+               sony_bl_props.cmd_base = 0x0100;
                sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
                max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
 
-       } else if (sony_find_snc_handle(0x137) != -1) {
+       } else if (sony_find_snc_handle(0x137) >= 0) {
                ops = &sony_backlight_ng_ops;
+               sony_bl_props.cmd_base = 0x0100;
                sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
                max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
 
+       } else if (sony_find_snc_handle(0x143) >= 0) {
+               ops = &sony_backlight_ng_ops;
+               sony_bl_props.cmd_base = 0x3000;
+               sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
+               max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
+
        } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
                                                &unused))) {
                ops = &sony_backlight_ops;
@@ -2599,6 +2642,12 @@ static int sony_nc_add(struct acpi_device *device)
                }
        }
 
+       result = sony_laptop_setup_input(device);
+       if (result) {
+               pr_err("Unable to create input devices\n");
+               goto outplatform;
+       }
+
        if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
                                         &handle))) {
                int arg = 1;
@@ -2616,12 +2665,6 @@ static int sony_nc_add(struct acpi_device *device)
        }
 
        /* setup input devices and helper fifo */
-       result = sony_laptop_setup_input(device);
-       if (result) {
-               pr_err("Unable to create input devices\n");
-               goto outsnc;
-       }
-
        if (acpi_video_backlight_support()) {
                pr_info("brightness ignored, must be controlled by ACPI video driver\n");
        } else {
@@ -2669,22 +2712,21 @@ static int sony_nc_add(struct acpi_device *device)
 
        return 0;
 
-      out_sysfs:
+out_sysfs:
        for (item = sony_nc_values; item->name; ++item) {
                device_remove_file(&sony_pf_device->dev, &item->devattr);
        }
        sony_nc_backlight_cleanup();
-
-       sony_laptop_remove_input();
-
-      outsnc:
        sony_nc_function_cleanup(sony_pf_device);
        sony_nc_handles_cleanup(sony_pf_device);
 
-      outpresent:
+outplatform:
+       sony_laptop_remove_input();
+
+outpresent:
        sony_pf_remove();
 
-      outwalk:
+outwalk:
        sony_nc_rfkill_cleanup();
        return result;
 }