#include <linux/backlight.h>
#include <linux/thermal.h>
#include <linux/video_output.h>
+#include <linux/sort.h>
#include <asm/uaccess.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-#define ACPI_VIDEO_COMPONENT 0x08000000
#define ACPI_VIDEO_CLASS "video"
#define ACPI_VIDEO_BUS_NAME "Video Bus"
#define ACPI_VIDEO_DEVICE_NAME "Video Device"
int level);
static int acpi_video_device_lcd_get_level_current(
struct acpi_video_device *device,
- unsigned long *level);
+ unsigned long long *level);
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);
+ unsigned long 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;
+ unsigned long long cur_level;
int i;
struct acpi_video_device *vd =
(struct acpi_video_device *)bl_get_data(bd);
/*video output device sysfs support*/
static int acpi_video_output_get(struct output_device *od)
{
- unsigned long state;
+ unsigned long long state;
struct acpi_video_device *vd =
(struct acpi_video_device *)dev_get_drvdata(&od->dev);
acpi_video_device_get_state(vd, &state);
{
struct acpi_device *device = cdev->devdata;
struct acpi_video_device *video = acpi_driver_data(device);
- unsigned long level;
+ unsigned long long level;
int state;
acpi_video_device_lcd_get_level_current(video, &level);
/* device */
static int
-acpi_video_device_query(struct acpi_video_device *device, unsigned long *state)
+acpi_video_device_query(struct acpi_video_device *device, unsigned long long *state)
{
int status;
static int
acpi_video_device_get_state(struct acpi_video_device *device,
- unsigned long *state)
+ unsigned long long *state)
{
int status;
int status;
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list args = { 1, &arg0 };
- unsigned long ret;
+ unsigned long long ret;
arg0.integer.value = state;
int status = AE_OK;
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list args = { 1, &arg0 };
+ int state;
arg0.integer.value = level;
status = acpi_evaluate_object(device->dev->handle, "_BCM",
&args, NULL);
device->brightness->curr = level;
+ for (state = 2; state < device->brightness->count; state++)
+ if (level == device->brightness->levels[state])
+ device->backlight->props.brightness = state - 2;
+
return status;
}
static int
acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
- unsigned long *level)
+ unsigned long long *level)
{
if (device->cap._BQC)
return acpi_evaluate_integer(device->dev->handle, "_BQC", NULL,
acpi_video_bus_set_POST(struct acpi_video_bus *video, unsigned long option)
{
int status;
- unsigned long tmp;
+ unsigned long long tmp;
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list args = { 1, &arg0 };
}
static int
-acpi_video_bus_get_POST(struct acpi_video_bus *video, unsigned long *id)
+acpi_video_bus_get_POST(struct acpi_video_bus *video, unsigned long long *id)
{
int status;
static int
acpi_video_bus_POST_options(struct acpi_video_bus *video,
- unsigned long *options)
+ unsigned long long *options)
{
int status;
return status;
}
+/*
+ * Simple comparison function used to sort backlight levels.
+ */
+
+static int
+acpi_video_cmp_level(const void *a, const void *b)
+{
+ return *(int *)a - *(int *)b;
+}
+
/*
* Arg:
* device : video output device (LCD, CRT, ..)
count++;
}
+ /* don't sort the first two brightness levels */
+ sort(&br->levels[2], count - 2, sizeof(br->levels[2]),
+ acpi_video_cmp_level, NULL);
+
if (count < 2)
goto out_free_levels;
device->cap._DSS = 1;
}
- max_level = acpi_video_init_brightness(device);
+ if (acpi_video_backlight_support())
+ max_level = acpi_video_init_brightness(device);
- 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);
printk(KERN_ERR PREFIX "Create sysfs link\n");
}
- 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);
+
+ if (acpi_video_display_switch_support()) {
+
+ if (device->cap._DCS && device->cap._DSS) {
+ static int count;
+ 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;
}
/*
static int acpi_video_bus_check(struct acpi_video_bus *video)
{
acpi_status status = -ENOENT;
-
+ struct device *dev;
if (!video)
return -EINVAL;
+ dev = acpi_get_physical_pci_device(video->device->handle);
+ if (!dev)
+ return -ENODEV;
+ put_device(dev);
+
/* Since there is no HID, CID and so on for VGA driver, we have
* to check well known required nodes.
*/
{
int status;
struct acpi_video_device *dev = seq->private;
- unsigned long state;
+ unsigned long long state;
if (!dev)
status = acpi_video_device_get_state(dev, &state);
seq_printf(seq, "state: ");
if (ACPI_SUCCESS(status))
- seq_printf(seq, "0x%02lx\n", state);
+ seq_printf(seq, "0x%02llx\n", state);
else
seq_printf(seq, "<not supported>\n");
status = acpi_video_device_query(dev, &state);
seq_printf(seq, "query: ");
if (ACPI_SUCCESS(status))
- seq_printf(seq, "0x%02lx\n", state);
+ seq_printf(seq, "0x%02llx\n", state);
else
seq_printf(seq, "<not supported>\n");
static int acpi_video_bus_POST_info_seq_show(struct seq_file *seq, void *offset)
{
struct acpi_video_bus *video = seq->private;
- unsigned long options;
+ unsigned long long options;
int status;
printk(KERN_WARNING PREFIX
"This indicates a BIOS bug. Please contact the manufacturer.\n");
}
- printk("%lx\n", options);
+ printk("%llx\n", options);
seq_printf(seq, "can POST: <integrated video>");
if (options & 2)
seq_printf(seq, " <PCI video>");
{
struct acpi_video_bus *video = seq->private;
int status;
- unsigned long id;
+ unsigned long long id;
if (!video)
struct seq_file *m = file->private_data;
struct acpi_video_bus *video = m->private;
char str[12] = { 0 };
- unsigned long opt, options;
+ unsigned long long opt, options;
if (!video || count + 1 > sizeof str)
acpi_video_bus_get_one_device(struct acpi_device *device,
struct acpi_video_bus *video)
{
- unsigned long device_id;
+ unsigned long long device_id;
int status;
struct acpi_video_device *data;
struct acpi_video_device_attrib* attribute;
strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
- acpi_driver_data(device) = data;
+ device->driver_data = data;
data->device_id = device_id;
data->video = video;
acpi_video_device_notify,
data);
if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error installing notify handler\n"));
+ printk(KERN_ERR PREFIX
+ "Error installing notify handler\n");
if(data->brightness)
kfree(data->brightness->levels);
kfree(data->brightness);
static void
acpi_video_switch_brightness(struct acpi_video_device *device, int event)
{
- unsigned long level_current, level_next;
+ unsigned long long level_current, level_next;
if (!device->brightness)
return;
acpi_video_device_lcd_get_level_current(device, &level_current);
status = acpi_video_bus_get_one_device(dev, video);
if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_WARN,
- "Cant attach device"));
+ printk(KERN_WARNING PREFIX
+ "Cant attach device");
continue;
}
}
video->device = device;
strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME);
strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
- acpi_driver_data(device) = video;
+ device->driver_data = video;
acpi_video_bus_find_cap(video);
error = acpi_video_bus_check(video);
ACPI_DEVICE_NOTIFY,
acpi_video_bus_notify, video);
if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error installing notify handler\n"));
+ printk(KERN_ERR PREFIX
+ "Error installing notify handler\n");
error = -ENODEV;
goto err_stop_video;
}
acpi_video_bus_remove_fs(device);
err_free_video:
kfree(video);
- acpi_driver_data(device) = NULL;
+ device->driver_data = NULL;
return error;
}
{
int result = 0;
-
- /*
- acpi_dbg_level = 0xFFFFFFFF;
- acpi_dbg_layer = 0x08000000;
- */
-
acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir);
if (!acpi_video_dir)
return -ENODEV;