diff options
Diffstat (limited to 'drivers/acpi/video.c')
| -rw-r--r-- | drivers/acpi/video.c | 244 |
1 files changed, 192 insertions, 52 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 00d25b347255..b8a2095cb5ee 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -31,8 +31,9 @@ #include <linux/list.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> - +#include <linux/input.h> #include <linux/backlight.h> +#include <linux/video_output.h> #include <asm/uaccess.h> #include <acpi/acpi_bus.h> @@ -73,10 +74,16 @@ MODULE_LICENSE("GPL"); static int acpi_video_bus_add(struct acpi_device *device); static int acpi_video_bus_remove(struct acpi_device *device, int type); +static const struct acpi_device_id video_device_ids[] = { + {ACPI_VIDEO_HID, 0}, + {"", 0}, +}; +MODULE_DEVICE_TABLE(acpi, video_device_ids); + static struct acpi_driver acpi_video_bus = { .name = "video", .class = ACPI_VIDEO_CLASS, - .ids = ACPI_VIDEO_HID, + .ids = video_device_ids, .ops = { .add = acpi_video_bus_add, .remove = acpi_video_bus_remove, @@ -131,6 +138,8 @@ struct acpi_video_bus { struct semaphore sem; struct list_head video_device_list; struct proc_dir_entry *dir; + struct input_dev *input; + char phys[32]; /* for input device */ }; struct acpi_video_device_flags { @@ -169,6 +178,7 @@ struct acpi_video_device { struct acpi_device *dev; struct acpi_video_device_brightness *brightness; struct backlight_device *backlight; + struct output_device *output_dev; }; /* bus */ @@ -272,13 +282,17 @@ static int acpi_video_get_next_level(struct acpi_video_device *device, u32 level_current, u32 event); static void acpi_video_switch_brightness(struct acpi_video_device *device, int event); +static int acpi_video_device_get_state(struct acpi_video_device *device, + unsigned long *state); +static int acpi_video_output_get(struct output_device *od); +static int acpi_video_device_set_state(struct acpi_video_device *device, int state); /*backlight device sysfs support*/ static int acpi_video_get_brightness(struct backlight_device *bd) { unsigned long cur_level; struct acpi_video_device *vd = - (struct acpi_video_device *)class_get_devdata(&bd->class_dev); + (struct acpi_video_device *)bl_get_data(bd); acpi_video_device_lcd_get_level_current(vd, &cur_level); return (int) cur_level; } @@ -287,7 +301,7 @@ static int acpi_video_set_brightness(struct backlight_device *bd) { int request_level = bd->props.brightness; struct acpi_video_device *vd = - (struct acpi_video_device *)class_get_devdata(&bd->class_dev); + (struct acpi_video_device *)bl_get_data(bd); acpi_video_device_lcd_set_level(vd, request_level); return 0; } @@ -297,6 +311,28 @@ static struct backlight_ops acpi_backlight_ops = { .update_status = acpi_video_set_brightness, }; +/*video output device sysfs support*/ +static int acpi_video_output_get(struct output_device *od) +{ + unsigned long state; + struct acpi_video_device *vd = + (struct acpi_video_device *)dev_get_drvdata(&od->dev); + acpi_video_device_get_state(vd, &state); + return (int)state; +} + +static int acpi_video_output_set(struct output_device *od) +{ + unsigned long state = od->request_state; + struct acpi_video_device *vd= + (struct acpi_video_device *)dev_get_drvdata(&od->dev); + return acpi_video_device_set_state(vd, state); +} + +static struct output_properties acpi_output_properties = { + .set_state = acpi_video_output_set, + .get_status = acpi_video_output_get, +}; /* -------------------------------------------------------------------------- Video Management -------------------------------------------------------------------------- */ @@ -381,7 +417,6 @@ acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level) arg0.integer.value = level; status = acpi_evaluate_object(device->dev->handle, "_BCM", &args, NULL); - printk(KERN_DEBUG "set_level status: %x\n", status); return status; } @@ -531,7 +566,6 @@ acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag) static void acpi_video_device_find_cap(struct acpi_video_device *device) { - acpi_integer status; acpi_handle h_dummy1; int i; u32 max_level = 0; @@ -565,50 +599,55 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) device->cap._DSS = 1; } - status = acpi_video_device_lcd_query_levels(device, &obj); - - if (obj && obj->type == ACPI_TYPE_PACKAGE && obj->package.count >= 2) { - int count = 0; - union acpi_object *o; - - br = kzalloc(sizeof(*br), GFP_KERNEL); - if (!br) { - printk(KERN_ERR "can't allocate memory\n"); - } else { - br->levels = kmalloc(obj->package.count * - sizeof *(br->levels), GFP_KERNEL); - if (!br->levels) - goto out; - - for (i = 0; i < obj->package.count; i++) { - o = (union acpi_object *)&obj->package. - elements[i]; - if (o->type != ACPI_TYPE_INTEGER) { - printk(KERN_ERR PREFIX "Invalid data\n"); - continue; - } - br->levels[count] = (u32) o->integer.value; - if (br->levels[count] > max_level) - max_level = br->levels[count]; - count++; - } - out: - if (count < 2) { - kfree(br->levels); - kfree(br); + if (ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device, &obj))) { + + if (obj->package.count >= 2) { + int count = 0; + union acpi_object *o; + + br = kzalloc(sizeof(*br), GFP_KERNEL); + if (!br) { + printk(KERN_ERR "can't allocate memory\n"); } else { - br->count = count; - device->brightness = br; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "found %d brightness levels\n", - count)); + br->levels = kmalloc(obj->package.count * + sizeof *(br->levels), GFP_KERNEL); + if (!br->levels) + goto out; + + for (i = 0; i < obj->package.count; i++) { + o = (union acpi_object *)&obj->package. + elements[i]; + if (o->type != ACPI_TYPE_INTEGER) { + printk(KERN_ERR PREFIX "Invalid data\n"); + continue; + } + br->levels[count] = (u32) o->integer.value; + + if (br->levels[count] > max_level) + max_level = br->levels[count]; + count++; + } + out: + if (count < 2) { + kfree(br->levels); + kfree(br); + } else { + br->count = count; + device->brightness = br; + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "found %d brightness levels\n", + count)); + } } } + + } else { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Could not query available LCD brightness level\n")); } kfree(obj); - if (device->cap._BCL && device->cap._BCM && device->cap._BQC){ + if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){ unsigned long tmp; static int count = 0; char *name; @@ -626,6 +665,17 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) kfree(name); } + if (device->cap._DCS && device->cap._DSS){ + static int count = 0; + char *name; + name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); + if (!name) + return; + sprintf(name, "acpi_video%d", count++); + device->output_dev = video_output_register(name, + NULL, device, &acpi_output_properties); + kfree(name); + } return; } @@ -1669,6 +1719,7 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device) ACPI_DEVICE_NOTIFY, acpi_video_device_notify); backlight_device_unregister(device->backlight); + video_output_unregister(device->output_dev); return 0; } @@ -1702,7 +1753,7 @@ static int acpi_video_bus_put_devices(struct acpi_video_bus *video) static int acpi_video_bus_start_devices(struct acpi_video_bus *video) { - return acpi_video_bus_DOS(video, 1, 0); + return acpi_video_bus_DOS(video, 0, 0); } static int acpi_video_bus_stop_devices(struct acpi_video_bus *video) @@ -1714,6 +1765,9 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data) { struct acpi_video_bus *video = data; struct acpi_device *device = NULL; + struct input_dev *input; + int keycode; + printk("video bus notify\n"); @@ -1721,11 +1775,13 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data) return; device = video->device; + input = video->input; switch (event) { case ACPI_VIDEO_NOTIFY_SWITCH: /* User requested a switch, * most likely via hotkey. */ - acpi_bus_generate_event(device, event, 0); + acpi_bus_generate_proc_event(device, event, 0); + keycode = KEY_SWITCHVIDEOMODE; break; case ACPI_VIDEO_NOTIFY_PROBE: /* User plugged in or removed a video @@ -1733,22 +1789,38 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data) acpi_video_device_enumerate(video); acpi_video_device_rebind(video); acpi_video_switch_output(video, event); - acpi_bus_generate_event(device, event, 0); + acpi_bus_generate_proc_event(device, event, 0); + keycode = KEY_SWITCHVIDEOMODE; break; case ACPI_VIDEO_NOTIFY_CYCLE: /* Cycle Display output hotkey pressed. */ + acpi_video_switch_output(video, event); + acpi_bus_generate_proc_event(device, event, 0); + keycode = KEY_SWITCHVIDEOMODE; + break; case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: /* Next Display output hotkey pressed. */ + acpi_video_switch_output(video, event); + acpi_bus_generate_proc_event(device, event, 0); + keycode = KEY_VIDEO_NEXT; + break; case ACPI_VIDEO_NOTIFY_PREV_OUTPUT: /* previous Display output hotkey pressed. */ acpi_video_switch_output(video, event); - acpi_bus_generate_event(device, event, 0); + acpi_bus_generate_proc_event(device, event, 0); + keycode = KEY_VIDEO_PREV; break; default: + keycode = KEY_UNKNOWN; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unsupported event [0x%x]\n", event)); break; } + input_report_key(input, keycode, 1); + input_sync(input); + input_report_key(input, keycode, 0); + input_sync(input); + return; } @@ -1756,38 +1828,65 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data) { struct acpi_video_device *video_device = data; struct acpi_device *device = NULL; + struct acpi_video_bus *bus; + struct input_dev *input; + int keycode; if (!video_device) return; device = video_device->dev; + bus = video_device->video; + input = bus->input; switch (event) { - case ACPI_VIDEO_NOTIFY_SWITCH: /* change in status (cycle output device) */ - case ACPI_VIDEO_NOTIFY_PROBE: /* change in status (output device status) */ - acpi_bus_generate_event(device, event, 0); - break; case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: /* Cycle brightness */ + acpi_video_switch_brightness(video_device, event); + acpi_bus_generate_proc_event(device, event, 0); + keycode = KEY_BRIGHTNESS_CYCLE; + break; case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: /* Increase brightness */ + acpi_video_switch_brightness(video_device, event); + acpi_bus_generate_proc_event(device, event, 0); + keycode = KEY_BRIGHTNESSUP; + break; case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: /* Decrease brightness */ + acpi_video_switch_brightness(video_device, event); + acpi_bus_generate_proc_event(device, event, 0); + keycode = KEY_BRIGHTNESSDOWN; + break; case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: /* zero brightnesss */ + acpi_video_switch_brightness(video_device, event); + acpi_bus_generate_proc_event(device, event, 0); + keycode = KEY_BRIGHTNESS_ZERO; + break; case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: /* display device off */ acpi_video_switch_brightness(video_device, event); - acpi_bus_generate_event(device, event, 0); + acpi_bus_generate_proc_event(device, event, 0); + keycode = KEY_DISPLAY_OFF; break; default: + keycode = KEY_UNKNOWN; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unsupported event [0x%x]\n", event)); break; } + + input_report_key(input, keycode, 1); + input_sync(input); + input_report_key(input, keycode, 0); + input_sync(input); + return; } +static int instance; static int acpi_video_bus_add(struct acpi_device *device) { int result = 0; acpi_status status = 0; struct acpi_video_bus *video = NULL; + struct input_dev *input; if (!device) @@ -1797,6 +1896,13 @@ static int acpi_video_bus_add(struct acpi_device *device) if (!video) return -ENOMEM; + /* a hack to fix the duplicate name "VID" problem on T61 */ + if (!strcmp(device->pnp.bus_id, "VID")) { + if (instance) + device->pnp.bus_id[3] = '0' + instance; + instance ++; + } + video->device = device; strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME); strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS); @@ -1831,6 +1937,39 @@ static int acpi_video_bus_add(struct acpi_device *device) goto end; } + + video->input = input = input_allocate_device(); + + snprintf(video->phys, sizeof(video->phys), + "%s/video/input0", acpi_device_hid(video->device)); + + input->name = acpi_device_name(video->device); + input->phys = video->phys; + input->id.bustype = BUS_HOST; + input->id.product = 0x06; + input->evbit[0] = BIT(EV_KEY); + set_bit(KEY_SWITCHVIDEOMODE, input->keybit); + set_bit(KEY_VIDEO_NEXT, input->keybit); + set_bit(KEY_VIDEO_PREV, input->keybit); + set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit); + set_bit(KEY_BRIGHTNESSUP, input->keybit); + set_bit(KEY_BRIGHTNESSDOWN, input->keybit); + set_bit(KEY_BRIGHTNESS_ZERO, input->keybit); + set_bit(KEY_DISPLAY_OFF, input->keybit); + set_bit(KEY_UNKNOWN, input->keybit); + result = input_register_device(input); + if (result) { + acpi_remove_notify_handler(video->device->handle, + ACPI_DEVICE_NOTIFY, + acpi_video_bus_notify); + acpi_video_bus_stop_devices(video); + acpi_video_bus_put_devices(video); + kfree(video->attached_array); + acpi_video_bus_remove_fs(device); + goto end; + } + + printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n", ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device), video->flags.multihead ? "yes" : "no", @@ -1864,6 +2003,7 @@ static int acpi_video_bus_remove(struct acpi_device *device, int type) acpi_video_bus_put_devices(video); acpi_video_bus_remove_fs(device); + input_unregister_device(video->input); kfree(video->attached_array); kfree(video); |