diff options
Diffstat (limited to 'drivers/platform/x86/toshiba_acpi.c')
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 136 |
1 files changed, 124 insertions, 12 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index def4841183b..7d67a45bb2b 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -4,6 +4,7 @@ * * Copyright (C) 2002-2004 John Belmonte * Copyright (C) 2008 Philip Langdale + * Copyright (C) 2010 Pierre Ducroquet * * 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 @@ -47,6 +48,8 @@ #include <linux/platform_device.h> #include <linux/rfkill.h> #include <linux/input.h> +#include <linux/leds.h> +#include <linux/slab.h> #include <asm/uaccess.h> @@ -128,6 +131,8 @@ enum {KE_KEY, KE_END}; static struct key_entry toshiba_acpi_keymap[] = { {KE_KEY, 0x101, KEY_MUTE}, + {KE_KEY, 0x102, KEY_ZOOMOUT}, + {KE_KEY, 0x103, KEY_ZOOMIN}, {KE_KEY, 0x13b, KEY_COFFEE}, {KE_KEY, 0x13c, KEY_BATTERY}, {KE_KEY, 0x13d, KEY_SLEEP}, @@ -284,6 +289,7 @@ struct toshiba_acpi_dev { struct platform_device *p_dev; struct rfkill *bt_rfk; struct input_dev *hotkey_dev; + int illumination_installed; acpi_handle handle; const char *bt_name; @@ -291,6 +297,110 @@ struct toshiba_acpi_dev { struct mutex mutex; }; +/* Illumination support */ +static int toshiba_illumination_available(void) +{ + u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 }; + u32 out[HCI_WORDS]; + acpi_status status; + + in[0] = 0xf100; + status = hci_raw(in, out); + if (ACPI_FAILURE(status)) { + printk(MY_INFO "Illumination device not available\n"); + return 0; + } + in[0] = 0xf400; + status = hci_raw(in, out); + return 1; +} + +static void toshiba_illumination_set(struct led_classdev *cdev, + enum led_brightness brightness) +{ + u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 }; + u32 out[HCI_WORDS]; + acpi_status status; + + /* First request : initialize communication. */ + in[0] = 0xf100; + status = hci_raw(in, out); + if (ACPI_FAILURE(status)) { + printk(MY_INFO "Illumination device not available\n"); + return; + } + + if (brightness) { + /* Switch the illumination on */ + in[0] = 0xf400; + in[1] = 0x14e; + in[2] = 1; + status = hci_raw(in, out); + if (ACPI_FAILURE(status)) { + printk(MY_INFO "ACPI call for illumination failed.\n"); + return; + } + } else { + /* Switch the illumination off */ + in[0] = 0xf400; + in[1] = 0x14e; + in[2] = 0; + status = hci_raw(in, out); + if (ACPI_FAILURE(status)) { + printk(MY_INFO "ACPI call for illumination failed.\n"); + return; + } + } + + /* Last request : close communication. */ + in[0] = 0xf200; + in[1] = 0; + in[2] = 0; + hci_raw(in, out); +} + +static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev) +{ + u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 }; + u32 out[HCI_WORDS]; + acpi_status status; + enum led_brightness result; + + /* First request : initialize communication. */ + in[0] = 0xf100; + status = hci_raw(in, out); + if (ACPI_FAILURE(status)) { + printk(MY_INFO "Illumination device not available\n"); + return LED_OFF; + } + + /* Check the illumination */ + in[0] = 0xf300; + in[1] = 0x14e; + status = hci_raw(in, out); + if (ACPI_FAILURE(status)) { + printk(MY_INFO "ACPI call for illumination failed.\n"); + return LED_OFF; + } + + result = out[2] ? LED_FULL : LED_OFF; + + /* Last request : close communication. */ + in[0] = 0xf200; + in[1] = 0; + in[2] = 0; + hci_raw(in, out); + + return result; +} + +static struct led_classdev toshiba_led = { + .name = "toshiba::illumination", + .max_brightness = 1, + .brightness_set = toshiba_illumination_set, + .brightness_get = toshiba_illumination_get, +}; + static struct toshiba_acpi_dev toshiba_acpi = { .bt_name = "Toshiba Bluetooth", }; @@ -719,25 +829,22 @@ static const struct file_operations version_proc_fops = { #define PROC_TOSHIBA "toshiba" -static acpi_status __init add_device(void) +static void __init create_toshiba_proc_entries(void) { proc_create("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir, &lcd_proc_fops); proc_create("video", S_IRUGO | S_IWUSR, toshiba_proc_dir, &video_proc_fops); proc_create("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir, &fan_proc_fops); proc_create("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, &keys_proc_fops); proc_create("version", S_IRUGO, toshiba_proc_dir, &version_proc_fops); - - return AE_OK; } -static acpi_status remove_device(void) +static void remove_toshiba_proc_entries(void) { remove_proc_entry("lcd", toshiba_proc_dir); remove_proc_entry("video", toshiba_proc_dir); remove_proc_entry("fan", toshiba_proc_dir); remove_proc_entry("keys", toshiba_proc_dir); remove_proc_entry("version", toshiba_proc_dir); - return AE_OK; } static struct backlight_ops toshiba_backlight_data = { @@ -905,7 +1012,7 @@ static void toshiba_acpi_exit(void) if (toshiba_backlight_device) backlight_device_unregister(toshiba_backlight_device); - remove_device(); + remove_toshiba_proc_entries(); if (toshiba_proc_dir) remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); @@ -913,6 +1020,9 @@ static void toshiba_acpi_exit(void) acpi_remove_notify_handler(toshiba_acpi.handle, ACPI_DEVICE_NOTIFY, toshiba_acpi_notify); + if (toshiba_acpi.illumination_installed) + led_classdev_unregister(&toshiba_led); + platform_device_unregister(toshiba_acpi.p_dev); return; @@ -920,7 +1030,6 @@ static void toshiba_acpi_exit(void) static int __init toshiba_acpi_init(void) { - acpi_status status = AE_OK; u32 hci_result; bool bt_present; int ret = 0; @@ -968,11 +1077,7 @@ static int __init toshiba_acpi_init(void) toshiba_acpi_exit(); return -ENODEV; } else { - status = add_device(); - if (ACPI_FAILURE(status)) { - toshiba_acpi_exit(); - return -ENODEV; - } + create_toshiba_proc_entries(); } props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1; @@ -1012,6 +1117,13 @@ static int __init toshiba_acpi_init(void) } } + toshiba_acpi.illumination_installed = 0; + if (toshiba_illumination_available()) { + if (!led_classdev_register(&(toshiba_acpi.p_dev->dev), + &toshiba_led)) + toshiba_acpi.illumination_installed = 1; + } + return 0; } |