/* bus */
static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file);
static struct file_operations acpi_video_bus_info_fops = {
+ .owner = THIS_MODULE,
.open = acpi_video_bus_info_open_fs,
.read = seq_read,
.llseek = seq_lseek,
static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file);
static struct file_operations acpi_video_bus_ROM_fops = {
+ .owner = THIS_MODULE,
.open = acpi_video_bus_ROM_open_fs,
.read = seq_read,
.llseek = seq_lseek,
static int acpi_video_bus_POST_info_open_fs(struct inode *inode,
struct file *file);
static struct file_operations acpi_video_bus_POST_info_fops = {
+ .owner = THIS_MODULE,
.open = acpi_video_bus_POST_info_open_fs,
.read = seq_read,
.llseek = seq_lseek,
static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file);
static struct file_operations acpi_video_bus_POST_fops = {
+ .owner = THIS_MODULE,
.open = acpi_video_bus_POST_open_fs,
.read = seq_read,
.llseek = seq_lseek,
static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file);
static struct file_operations acpi_video_bus_DOS_fops = {
+ .owner = THIS_MODULE,
.open = acpi_video_bus_DOS_open_fs,
.read = seq_read,
.llseek = seq_lseek,
static int acpi_video_device_info_open_fs(struct inode *inode,
struct file *file);
static struct file_operations acpi_video_device_info_fops = {
+ .owner = THIS_MODULE,
.open = acpi_video_device_info_open_fs,
.read = seq_read,
.llseek = seq_lseek,
static int acpi_video_device_state_open_fs(struct inode *inode,
struct file *file);
static struct file_operations acpi_video_device_state_fops = {
+ .owner = THIS_MODULE,
.open = acpi_video_device_state_open_fs,
.read = seq_read,
.llseek = seq_lseek,
static int acpi_video_device_brightness_open_fs(struct inode *inode,
struct file *file);
static struct file_operations acpi_video_device_brightness_fops = {
+ .owner = THIS_MODULE,
.open = acpi_video_device_brightness_open_fs,
.read = seq_read,
.llseek = seq_lseek,
static int acpi_video_device_EDID_open_fs(struct inode *inode,
struct file *file);
static struct file_operations acpi_video_device_EDID_fops = {
+ .owner = THIS_MODULE,
.open = acpi_video_device_EDID_open_fs,
.read = seq_read,
.llseek = seq_lseek,
* device : video output device (LCD, CRT, ..)
*
* Return Value:
+ * Maximum brightness level
+ *
+ * Allocate and initialize device->brightness.
+ */
+
+static int
+acpi_video_init_brightness(struct acpi_video_device *device)
+{
+ union acpi_object *obj = NULL;
+ int i, max_level = 0, count = 0;
+ union acpi_object *o;
+ struct acpi_video_device_brightness *br = NULL;
+
+ if (!ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device, &obj))) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Could not query available "
+ "LCD brightness level\n"));
+ goto out;
+ }
+
+ if (obj->package.count < 2)
+ goto out;
+
+ br = kzalloc(sizeof(*br), GFP_KERNEL);
+ if (!br) {
+ printk(KERN_ERR "can't allocate memory\n");
+ goto out;
+ }
+
+ br->levels = kmalloc(obj->package.count * sizeof *(br->levels),
+ GFP_KERNEL);
+ if (!br->levels)
+ goto out_free;
+
+ 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++;
+ }
+
+ if (count < 2)
+ goto out_free_levels;
+
+ br->count = count;
+ device->brightness = br;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "found %d brightness levels\n", count));
+ kfree(obj);
+ return max_level;
+
+out_free_levels:
+ kfree(br->levels);
+out_free:
+ kfree(br);
+out:
+ device->brightness = NULL;
+ kfree(obj);
+ return 0;
+}
+
+/*
+ * Arg:
+ * device : video output device (LCD, CRT, ..)
+ *
+ * Return Value:
* None
*
* Find out all required AML methods defined under the output
static void acpi_video_device_find_cap(struct acpi_video_device *device)
{
acpi_handle h_dummy1;
- int i;
u32 max_level = 0;
- union acpi_object *obj = NULL;
- struct acpi_video_device_brightness *br = NULL;
memset(&device->cap, 0, sizeof(device->cap));
device->cap._DSS = 1;
}
- 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->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));
- }
- }
- }
+ max_level = acpi_video_init_brightness(device);
- } 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 && max_level > 0){
+ if (device->cap._BCL && device->cap._BCM && max_level > 0) {
int result;
static int count = 0;
char *name;
device->backlight = backlight_device_register(name,
NULL, device, &acpi_backlight_ops);
device->backlight->props.max_brightness = device->brightness->count-3;
- device->backlight->props.brightness = acpi_video_get_brightness(device->backlight);
+ /*
+ * If there exists the _BQC object, the _BQC object will be
+ * called to get the current backlight brightness. Otherwise
+ * the brightness will be set to the maximum.
+ */
+ if (device->cap._BQC)
+ device->backlight->props.brightness =
+ acpi_video_get_brightness(device->backlight);
+ else
+ device->backlight->props.brightness =
+ device->backlight->props.max_brightness;
backlight_update_status(device->backlight);
kfree(name);
if (IS_ERR(device->cdev))
return;
- printk(KERN_INFO PREFIX
- "%s is registered as cooling_device%d\n",
- device->dev->dev.bus_id, device->cdev->id);
+ dev_info(&device->dev->dev, "registered as cooling_device%d\n",
+ device->cdev->id);
result = sysfs_create_link(&device->dev->dev.kobj,
&device->cdev->device.kobj,
"thermal_cooling");
device_dir->owner = THIS_MODULE;
/* 'info' [R] */
- entry = create_proc_entry("info", S_IRUGO, device_dir);
+ entry = proc_create_data("info", S_IRUGO, device_dir,
+ &acpi_video_device_info_fops, acpi_driver_data(device));
if (!entry)
goto err_remove_dir;
- entry->proc_fops = &acpi_video_device_info_fops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
-
/* 'state' [R/W] */
- entry = create_proc_entry("state", S_IFREG | S_IRUGO | S_IWUSR,
- device_dir);
+ acpi_video_device_state_fops.write = acpi_video_device_write_state;
+ entry = proc_create_data("state", S_IFREG | S_IRUGO | S_IWUSR,
+ device_dir,
+ &acpi_video_device_state_fops,
+ acpi_driver_data(device));
if (!entry)
goto err_remove_info;
- acpi_video_device_state_fops.write = acpi_video_device_write_state;
- entry->proc_fops = &acpi_video_device_state_fops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
-
/* 'brightness' [R/W] */
- entry = create_proc_entry("brightness", S_IFREG | S_IRUGO | S_IWUSR,
- device_dir);
+ acpi_video_device_brightness_fops.write =
+ acpi_video_device_write_brightness;
+ entry = proc_create_data("brightness", S_IFREG | S_IRUGO | S_IWUSR,
+ device_dir,
+ &acpi_video_device_brightness_fops,
+ acpi_driver_data(device));
if (!entry)
goto err_remove_state;
- acpi_video_device_brightness_fops.write =
- acpi_video_device_write_brightness;
- entry->proc_fops = &acpi_video_device_brightness_fops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
-
/* 'EDID' [R] */
- entry = create_proc_entry("EDID", S_IRUGO, device_dir);
+ entry = proc_create_data("EDID", S_IRUGO, device_dir,
+ &acpi_video_device_EDID_fops,
+ acpi_driver_data(device));
if (!entry)
goto err_remove_brightness;
- entry->proc_fops = &acpi_video_device_EDID_fops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
-
acpi_device_dir(device) = device_dir;
+
return 0;
err_remove_brightness:
device_dir->owner = THIS_MODULE;
/* 'info' [R] */
- entry = create_proc_entry("info", S_IRUGO, device_dir);
+ entry = proc_create_data("info", S_IRUGO, device_dir,
+ &acpi_video_bus_info_fops,
+ acpi_driver_data(device));
if (!entry)
goto err_remove_dir;
- entry->proc_fops = &acpi_video_bus_info_fops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
-
/* 'ROM' [R] */
- entry = create_proc_entry("ROM", S_IRUGO, device_dir);
+ entry = proc_create_data("ROM", S_IRUGO, device_dir,
+ &acpi_video_bus_ROM_fops,
+ acpi_driver_data(device));
if (!entry)
goto err_remove_info;
- entry->proc_fops = &acpi_video_bus_ROM_fops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
-
/* 'POST_info' [R] */
- entry = create_proc_entry("POST_info", S_IRUGO, device_dir);
+ entry = proc_create_data("POST_info", S_IRUGO, device_dir,
+ &acpi_video_bus_POST_info_fops,
+ acpi_driver_data(device));
if (!entry)
goto err_remove_rom;
- entry->proc_fops = &acpi_video_bus_POST_info_fops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
-
/* 'POST' [R/W] */
- entry = create_proc_entry("POST", S_IFREG | S_IRUGO | S_IWUSR,
- device_dir);
+ acpi_video_bus_POST_fops.write = acpi_video_bus_write_POST;
+ entry = proc_create_data("POST", S_IFREG | S_IRUGO | S_IWUSR,
+ device_dir,
+ &acpi_video_bus_POST_fops,
+ acpi_driver_data(device));
if (!entry)
goto err_remove_post_info;
- acpi_video_bus_POST_fops.write = acpi_video_bus_write_POST;
- entry->proc_fops = &acpi_video_bus_POST_fops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
-
/* 'DOS' [R/W] */
- entry = create_proc_entry("DOS", S_IFREG | S_IRUGO | S_IWUSR,
- device_dir);
+ acpi_video_bus_DOS_fops.write = acpi_video_bus_write_DOS;
+ entry = proc_create_data("DOS", S_IFREG | S_IRUGO | S_IWUSR,
+ device_dir,
+ &acpi_video_bus_DOS_fops,
+ acpi_driver_data(device));
if (!entry)
goto err_remove_post;
- acpi_video_bus_DOS_fops.write = acpi_video_bus_write_DOS;
- entry->proc_fops = &acpi_video_bus_DOS_fops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
-
video->dir = acpi_device_dir(device) = device_dir;
return 0;
acpi_video_switch_brightness(struct acpi_video_device *device, int event)
{
unsigned long level_current, level_next;
+ if (!device->brightness)
+ return;
acpi_video_device_lcd_get_level_current(device, &level_current);
level_next = acpi_video_get_next_level(device, level_current, event);
acpi_video_device_lcd_set_level(device, level_next);
status = acpi_video_bus_get_one_device(dev, video);
if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Cant attach device"));
+ ACPI_DEBUG_PRINT((ACPI_DB_WARN,
+ "Cant attach device"));
continue;
}
}
git.openpandora.org / pandora-kernel.git / blobdiff