#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <linux/kfifo.h>
+#include <linux/leds.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
-#if IS_ENABLED(CONFIG_LEDS_CLASS)
-#include <linux/leds.h>
-#endif
#include <acpi/video.h>
#define FUJITSU_DRIVER_VERSION "0.6.0"
#define FLAG_LID 0x100
#define FLAG_DOCK 0x200
-#if IS_ENABLED(CONFIG_LEDS_CLASS)
/* FUNC interface - LED control */
#define FUNC_LED_OFF 0x1
#define FUNC_LED_ON 0x30001
#define RADIO_LED_ON 0x20
#define ECO_LED 0x10000
#define ECO_LED_ON 0x80000
-#endif
/* Hotkey details */
#define KEY1_CODE 0x410 /* codes for the keys in the GIRB register */
/* Device controlling the backlight and associated keys */
struct fujitsu_bl {
acpi_handle acpi_handle;
- struct acpi_device *dev;
struct input_dev *input;
char phys[32];
struct backlight_device *bl_device;
-
unsigned int max_brightness;
- unsigned int brightness_changed;
unsigned int brightness_level;
};
static struct fujitsu_bl *fujitsu_bl;
static int use_alt_lcd_levels = -1;
-static int disable_brightness_adjust = -1;
+static bool disable_brightness_adjust;
/* Device used to access hotkeys and other features on the laptop */
struct fujitsu_laptop {
spinlock_t fifo_lock;
int flags_supported;
int flags_state;
- int logolamp_registered;
- int kblamps_registered;
- int radio_led_registered;
- int eco_led_registered;
};
static struct fujitsu_laptop *fujitsu_laptop;
-#if IS_ENABLED(CONFIG_LEDS_CLASS)
-static enum led_brightness logolamp_get(struct led_classdev *cdev);
-static int logolamp_set(struct led_classdev *cdev,
- enum led_brightness brightness);
-
-static struct led_classdev logolamp_led = {
- .name = "fujitsu::logolamp",
- .brightness_get = logolamp_get,
- .brightness_set_blocking = logolamp_set
-};
-
-static enum led_brightness kblamps_get(struct led_classdev *cdev);
-static int kblamps_set(struct led_classdev *cdev,
- enum led_brightness brightness);
-
-static struct led_classdev kblamps_led = {
- .name = "fujitsu::kblamps",
- .brightness_get = kblamps_get,
- .brightness_set_blocking = kblamps_set
-};
-
-static enum led_brightness radio_led_get(struct led_classdev *cdev);
-static int radio_led_set(struct led_classdev *cdev,
- enum led_brightness brightness);
-
-static struct led_classdev radio_led = {
- .name = "fujitsu::radio_led",
- .default_trigger = "rfkill-any",
- .brightness_get = radio_led_get,
- .brightness_set_blocking = radio_led_set
-};
-
-static enum led_brightness eco_led_get(struct led_classdev *cdev);
-static int eco_led_set(struct led_classdev *cdev,
- enum led_brightness brightness);
-
-static struct led_classdev eco_led = {
- .name = "fujitsu::eco_led",
- .brightness_get = eco_led_get,
- .brightness_set_blocking = eco_led_set
-};
-#endif
-
#ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
static u32 dbg_level = 0x03;
#endif
return value;
}
-#if IS_ENABLED(CONFIG_LEDS_CLASS)
-/* LED class callbacks */
-
-static int logolamp_set(struct led_classdev *cdev,
- enum led_brightness brightness)
-{
- int poweron = FUNC_LED_ON, always = FUNC_LED_ON;
- int ret;
-
- if (brightness < LED_HALF)
- poweron = FUNC_LED_OFF;
-
- if (brightness < LED_FULL)
- always = FUNC_LED_OFF;
-
- ret = call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, poweron);
- if (ret < 0)
- return ret;
-
- return call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, always);
-}
-
-static int kblamps_set(struct led_classdev *cdev,
- enum led_brightness brightness)
-{
- if (brightness >= LED_FULL)
- return call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
- else
- return call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
-}
-
-static int radio_led_set(struct led_classdev *cdev,
- enum led_brightness brightness)
-{
- if (brightness >= LED_FULL)
- return call_fext_func(FUNC_FLAGS, 0x5, RADIO_LED_ON, RADIO_LED_ON);
- else
- return call_fext_func(FUNC_FLAGS, 0x5, RADIO_LED_ON, 0x0);
-}
-
-static int eco_led_set(struct led_classdev *cdev,
- enum led_brightness brightness)
-{
- int curr;
-
- curr = call_fext_func(FUNC_LEDS, 0x2, ECO_LED, 0x0);
- if (brightness >= LED_FULL)
- return call_fext_func(FUNC_LEDS, 0x1, ECO_LED, curr | ECO_LED_ON);
- else
- return call_fext_func(FUNC_LEDS, 0x1, ECO_LED, curr & ~ECO_LED_ON);
-}
-
-static enum led_brightness logolamp_get(struct led_classdev *cdev)
-{
- int ret;
-
- ret = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0);
- if (ret == FUNC_LED_ON)
- return LED_FULL;
-
- ret = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0);
- if (ret == FUNC_LED_ON)
- return LED_HALF;
-
- return LED_OFF;
-}
-
-static enum led_brightness kblamps_get(struct led_classdev *cdev)
-{
- enum led_brightness brightness = LED_OFF;
-
- if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON)
- brightness = LED_FULL;
-
- return brightness;
-}
-
-static enum led_brightness radio_led_get(struct led_classdev *cdev)
-{
- enum led_brightness brightness = LED_OFF;
-
- if (call_fext_func(FUNC_FLAGS, 0x4, 0x0, 0x0) & RADIO_LED_ON)
- brightness = LED_FULL;
-
- return brightness;
-}
-
-static enum led_brightness eco_led_get(struct led_classdev *cdev)
-{
- enum led_brightness brightness = LED_OFF;
-
- if (call_fext_func(FUNC_LEDS, 0x2, ECO_LED, 0x0) & ECO_LED_ON)
- brightness = LED_FULL;
-
- return brightness;
-}
-#endif
-
/* Hardware access for LCD brightness control */
static int set_lcd_level(int level)
{
- acpi_status status = AE_OK;
- acpi_handle handle = NULL;
-
- vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n",
- level);
-
- if (level < 0 || level >= fujitsu_bl->max_brightness)
- return -EINVAL;
+ acpi_status status;
+ char *method;
- status = acpi_get_handle(fujitsu_bl->acpi_handle, "SBLL", &handle);
- if (ACPI_FAILURE(status)) {
- vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n");
- return -ENODEV;
+ switch (use_alt_lcd_levels) {
+ case -1:
+ if (acpi_has_method(fujitsu_bl->acpi_handle, "SBL2"))
+ method = "SBL2";
+ else
+ method = "SBLL";
+ break;
+ case 1:
+ method = "SBL2";
+ break;
+ default:
+ method = "SBLL";
+ break;
}
-
- status = acpi_execute_simple_method(handle, NULL, level);
- if (ACPI_FAILURE(status))
- return -ENODEV;
-
- return 0;
-}
-
-static int set_lcd_level_alt(int level)
-{
- acpi_status status = AE_OK;
- acpi_handle handle = NULL;
-
- vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n",
- level);
+ vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via %s [%d]\n",
+ method, level);
if (level < 0 || level >= fujitsu_bl->max_brightness)
return -EINVAL;
- status = acpi_get_handle(fujitsu_bl->acpi_handle, "SBL2", &handle);
+ status = acpi_execute_simple_method(fujitsu_bl->acpi_handle, method,
+ level);
if (ACPI_FAILURE(status)) {
- vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n");
+ vdbg_printk(FUJLAPTOP_DBG_ERROR, "Failed to evaluate %s\n",
+ method);
return -ENODEV;
}
- status = acpi_execute_simple_method(handle, NULL, level);
- if (ACPI_FAILURE(status))
- return -ENODEV;
+ fujitsu_bl->brightness_level = level;
return 0;
}
fujitsu_bl->brightness_level = state & 0x0fffffff;
- if (state & 0x80000000)
- fujitsu_bl->brightness_changed = 1;
- else
- fujitsu_bl->brightness_changed = 0;
-
return fujitsu_bl->brightness_level;
}
static int bl_get_brightness(struct backlight_device *b)
{
- return get_lcd_level();
+ return b->props.power == FB_BLANK_POWERDOWN ? 0 : get_lcd_level();
}
static int bl_update_status(struct backlight_device *b)
{
- int ret;
if (b->props.power == FB_BLANK_POWERDOWN)
- ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
- else
- ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
- if (ret != 0)
- vdbg_printk(FUJLAPTOP_DBG_ERROR,
- "Unable to adjust backlight power, error code %i\n",
- ret);
-
- if (use_alt_lcd_levels)
- ret = set_lcd_level_alt(b->props.brightness);
+ call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
else
- ret = set_lcd_level(b->props.brightness);
- if (ret != 0)
- vdbg_printk(FUJLAPTOP_DBG_ERROR,
- "Unable to adjust LCD brightness, error code %i\n",
- ret);
- return ret;
+ call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
+
+ return set_lcd_level(b->props.brightness);
}
static const struct backlight_ops fujitsu_bl_ops = {
return input_register_device(fujitsu_bl->input);
}
-static int fujitsu_backlight_register(void)
+static int fujitsu_backlight_register(struct acpi_device *device)
{
- struct backlight_properties props = {
+ const struct backlight_properties props = {
.brightness = fujitsu_bl->brightness_level,
.max_brightness = fujitsu_bl->max_brightness - 1,
.type = BACKLIGHT_PLATFORM
};
struct backlight_device *bd;
- bd = backlight_device_register("fujitsu-laptop", NULL, NULL,
- &fujitsu_bl_ops, &props);
+ bd = devm_backlight_device_register(&device->dev, "fujitsu-laptop",
+ &device->dev, NULL,
+ &fujitsu_bl_ops, &props);
if (IS_ERR(bd))
return PTR_ERR(bd);
acpi_device_name(device), acpi_device_bid(device),
!device->power.state ? "on" : "off");
- fujitsu_bl->dev = device;
-
if (acpi_has_method(device->handle, METHOD_NAME__INI)) {
vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
if (ACPI_FAILURE
pr_err("_INI Method failed\n");
}
- if (use_alt_lcd_levels == -1) {
- if (acpi_has_method(NULL, "\\_SB.PCI0.LPCB.FJEX.SBL2"))
- use_alt_lcd_levels = 1;
- else
- use_alt_lcd_levels = 0;
- vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as %i\n",
- use_alt_lcd_levels);
- }
-
- /* do config (detect defaults) */
- use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
- disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
- vdbg_printk(FUJLAPTOP_DBG_INFO,
- "config: [alt interface: %d], [adjust disable: %d]\n",
- use_alt_lcd_levels, disable_brightness_adjust);
-
if (get_max_brightness() <= 0)
fujitsu_bl->max_brightness = FUJITSU_LCD_N_LEVELS;
get_lcd_level();
- error = fujitsu_backlight_register();
+ error = fujitsu_backlight_register(device);
if (error)
return error;
return 0;
}
-static int acpi_fujitsu_bl_remove(struct acpi_device *device)
-{
- struct fujitsu_bl *fujitsu_bl = acpi_driver_data(device);
-
- backlight_device_unregister(fujitsu_bl->bl_device);
-
- fujitsu_bl->acpi_handle = NULL;
-
- return 0;
-}
-
/* Brightness notify */
static void acpi_fujitsu_bl_notify(struct acpi_device *device, u32 event)
get_lcd_level();
newb = fujitsu_bl->brightness_level;
- vdbg_printk(FUJLAPTOP_DBG_TRACE,
- "brightness button event [%i -> %i (%i)]\n",
- oldb, newb, fujitsu_bl->brightness_changed);
+ vdbg_printk(FUJLAPTOP_DBG_TRACE, "brightness button event [%i -> %i]\n",
+ oldb, newb);
if (oldb == newb)
return;
- if (disable_brightness_adjust != 1) {
- if (use_alt_lcd_levels)
- set_lcd_level_alt(newb);
- else
- set_lcd_level(newb);
- }
+ if (!disable_brightness_adjust)
+ set_lcd_level(newb);
sparse_keymap_report_event(input, oldb < newb, 1, true);
}
platform_device_unregister(fujitsu_laptop->pf_device);
}
-static int acpi_fujitsu_laptop_add(struct acpi_device *device)
+static int logolamp_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ int poweron = FUNC_LED_ON, always = FUNC_LED_ON;
+ int ret;
+
+ if (brightness < LED_HALF)
+ poweron = FUNC_LED_OFF;
+
+ if (brightness < LED_FULL)
+ always = FUNC_LED_OFF;
+
+ ret = call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, poweron);
+ if (ret < 0)
+ return ret;
+
+ return call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, always);
+}
+
+static enum led_brightness logolamp_get(struct led_classdev *cdev)
+{
+ int ret;
+
+ ret = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0);
+ if (ret == FUNC_LED_ON)
+ return LED_FULL;
+
+ ret = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0);
+ if (ret == FUNC_LED_ON)
+ return LED_HALF;
+
+ return LED_OFF;
+}
+
+static struct led_classdev logolamp_led = {
+ .name = "fujitsu::logolamp",
+ .brightness_set_blocking = logolamp_set,
+ .brightness_get = logolamp_get
+};
+
+static int kblamps_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ if (brightness >= LED_FULL)
+ return call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS,
+ FUNC_LED_ON);
+ else
+ return call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS,
+ FUNC_LED_OFF);
+}
+
+static enum led_brightness kblamps_get(struct led_classdev *cdev)
+{
+ enum led_brightness brightness = LED_OFF;
+
+ if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON)
+ brightness = LED_FULL;
+
+ return brightness;
+}
+
+static struct led_classdev kblamps_led = {
+ .name = "fujitsu::kblamps",
+ .brightness_set_blocking = kblamps_set,
+ .brightness_get = kblamps_get
+};
+
+static int radio_led_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ if (brightness >= LED_FULL)
+ return call_fext_func(FUNC_FLAGS, 0x5, RADIO_LED_ON,
+ RADIO_LED_ON);
+ else
+ return call_fext_func(FUNC_FLAGS, 0x5, RADIO_LED_ON, 0x0);
+}
+
+static enum led_brightness radio_led_get(struct led_classdev *cdev)
+{
+ enum led_brightness brightness = LED_OFF;
+
+ if (call_fext_func(FUNC_FLAGS, 0x4, 0x0, 0x0) & RADIO_LED_ON)
+ brightness = LED_FULL;
+
+ return brightness;
+}
+
+static struct led_classdev radio_led = {
+ .name = "fujitsu::radio_led",
+ .brightness_set_blocking = radio_led_set,
+ .brightness_get = radio_led_get,
+ .default_trigger = "rfkill-any"
+};
+
+static int eco_led_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ int curr;
+
+ curr = call_fext_func(FUNC_LEDS, 0x2, ECO_LED, 0x0);
+ if (brightness >= LED_FULL)
+ return call_fext_func(FUNC_LEDS, 0x1, ECO_LED,
+ curr | ECO_LED_ON);
+ else
+ return call_fext_func(FUNC_LEDS, 0x1, ECO_LED,
+ curr & ~ECO_LED_ON);
+}
+
+static enum led_brightness eco_led_get(struct led_classdev *cdev)
+{
+ enum led_brightness brightness = LED_OFF;
+
+ if (call_fext_func(FUNC_LEDS, 0x2, ECO_LED, 0x0) & ECO_LED_ON)
+ brightness = LED_FULL;
+
+ return brightness;
+}
+
+static struct led_classdev eco_led = {
+ .name = "fujitsu::eco_led",
+ .brightness_set_blocking = eco_led_set,
+ .brightness_get = eco_led_get
+};
+
+static int acpi_fujitsu_laptop_leds_register(struct acpi_device *device)
{
int result = 0;
+
+ if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
+ result = devm_led_classdev_register(&device->dev,
+ &logolamp_led);
+ if (result)
+ pr_err("Could not register LED handler for logo lamp, error %i\n",
+ result);
+ }
+
+ if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
+ (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
+ result = devm_led_classdev_register(&device->dev, &kblamps_led);
+ if (result)
+ pr_err("Could not register LED handler for keyboard lamps, error %i\n",
+ result);
+ }
+
+ /*
+ * BTNI bit 24 seems to indicate the presence of a radio toggle
+ * button in place of a slide switch, and all such machines appear
+ * to also have an RF LED. Therefore use bit 24 as an indicator
+ * that an RF LED is present.
+ */
+ if (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) & BIT(24)) {
+ result = devm_led_classdev_register(&device->dev, &radio_led);
+ if (result)
+ pr_err("Could not register LED handler for radio LED, error %i\n",
+ result);
+ }
+
+ /* Support for eco led is not always signaled in bit corresponding
+ * to the bit used to control the led. According to the DSDT table,
+ * bit 14 seems to indicate presence of said led as well.
+ * Confirm by testing the status.
+ */
+ if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & BIT(14)) &&
+ (call_fext_func(FUNC_LEDS, 0x2, ECO_LED, 0x0) != UNSUPPORTED_CMD)) {
+ result = devm_led_classdev_register(&device->dev, &eco_led);
+ if (result)
+ pr_err("Could not register LED handler for eco LED, error %i\n",
+ result);
+ }
+
+ return result;
+}
+
+static int acpi_fujitsu_laptop_add(struct acpi_device *device)
+{
int state = 0;
int error;
int i;
if (error)
goto err_free_fifo;
-#if IS_ENABLED(CONFIG_LEDS_CLASS)
- if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
- result = led_classdev_register(&fujitsu_laptop->pf_device->dev,
- &logolamp_led);
- if (result == 0) {
- fujitsu_laptop->logolamp_registered = 1;
- } else {
- pr_err("Could not register LED handler for logo lamp, error %i\n",
- result);
- }
- }
-
- if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
- (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
- result = led_classdev_register(&fujitsu_laptop->pf_device->dev,
- &kblamps_led);
- if (result == 0) {
- fujitsu_laptop->kblamps_registered = 1;
- } else {
- pr_err("Could not register LED handler for keyboard lamps, error %i\n",
- result);
- }
- }
-
- /*
- * BTNI bit 24 seems to indicate the presence of a radio toggle
- * button in place of a slide switch, and all such machines appear
- * to also have an RF LED. Therefore use bit 24 as an indicator
- * that an RF LED is present.
- */
- if (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) & BIT(24)) {
- result = led_classdev_register(&fujitsu_laptop->pf_device->dev,
- &radio_led);
- if (result == 0) {
- fujitsu_laptop->radio_led_registered = 1;
- } else {
- pr_err("Could not register LED handler for radio LED, error %i\n",
- result);
- }
- }
-
- /* Support for eco led is not always signaled in bit corresponding
- * to the bit used to control the led. According to the DSDT table,
- * bit 14 seems to indicate presence of said led as well.
- * Confirm by testing the status.
- */
- if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & BIT(14)) &&
- (call_fext_func(FUNC_LEDS, 0x2, ECO_LED, 0x0) != UNSUPPORTED_CMD)) {
- result = led_classdev_register(&fujitsu_laptop->pf_device->dev,
- &eco_led);
- if (result == 0) {
- fujitsu_laptop->eco_led_registered = 1;
- } else {
- pr_err("Could not register LED handler for eco LED, error %i\n",
- result);
- }
- }
-#endif
+ error = acpi_fujitsu_laptop_leds_register(device);
+ if (error)
+ goto err_remove_platform_device;
- return result;
+ return 0;
+err_remove_platform_device:
+ fujitsu_laptop_platform_remove();
err_free_fifo:
kfifo_free(&fujitsu_laptop->fifo);
err_stop:
{
struct fujitsu_laptop *fujitsu_laptop = acpi_driver_data(device);
-#if IS_ENABLED(CONFIG_LEDS_CLASS)
- if (fujitsu_laptop->logolamp_registered)
- led_classdev_unregister(&logolamp_led);
-
- if (fujitsu_laptop->kblamps_registered)
- led_classdev_unregister(&kblamps_led);
-
- if (fujitsu_laptop->radio_led_registered)
- led_classdev_unregister(&radio_led);
-
- if (fujitsu_laptop->eco_led_registered)
- led_classdev_unregister(&eco_led);
-#endif
-
fujitsu_laptop_platform_remove();
kfifo_free(&fujitsu_laptop->fifo);
- fujitsu_laptop->acpi_handle = NULL;
-
return 0;
}
.ids = fujitsu_bl_device_ids,
.ops = {
.add = acpi_fujitsu_bl_add,
- .remove = acpi_fujitsu_bl_remove,
.notify = acpi_fujitsu_bl_notify,
},
};
module_init(fujitsu_init);
module_exit(fujitsu_cleanup);
-module_param(use_alt_lcd_levels, uint, 0644);
-MODULE_PARM_DESC(use_alt_lcd_levels,
- "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
-module_param(disable_brightness_adjust, uint, 0644);
-MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment .");
+module_param(use_alt_lcd_levels, int, 0644);
+MODULE_PARM_DESC(use_alt_lcd_levels, "Interface used for setting LCD brightness level (-1 = auto, 0 = force SBLL, 1 = force SBL2)");
+module_param(disable_brightness_adjust, bool, 0644);
+MODULE_PARM_DESC(disable_brightness_adjust, "Disable LCD brightness adjustment");
#ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
module_param_named(debug, dbg_level, uint, 0644);
MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
projects / mirror_ubuntu-bionic-kernel.git / blobdiff