diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/video/backlight/adp5520_bl.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/video/backlight/adp5520_bl.c | 388 |
1 files changed, 0 insertions, 388 deletions
diff --git a/ANDROID_3.4.5/drivers/video/backlight/adp5520_bl.c b/ANDROID_3.4.5/drivers/video/backlight/adp5520_bl.c deleted file mode 100644 index 4911ea79..00000000 --- a/ANDROID_3.4.5/drivers/video/backlight/adp5520_bl.c +++ /dev/null @@ -1,388 +0,0 @@ -/* - * Backlight driver for Analog Devices ADP5520/ADP5501 MFD PMICs - * - * Copyright 2009 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/fb.h> -#include <linux/backlight.h> -#include <linux/mfd/adp5520.h> -#include <linux/slab.h> -#include <linux/module.h> - -struct adp5520_bl { - struct device *master; - struct adp5520_backlight_platform_data *pdata; - struct mutex lock; - unsigned long cached_daylight_max; - int id; - int current_brightness; -}; - -static int adp5520_bl_set(struct backlight_device *bl, int brightness) -{ - struct adp5520_bl *data = bl_get_data(bl); - struct device *master = data->master; - int ret = 0; - - if (data->pdata->en_ambl_sens) { - if ((brightness > 0) && (brightness < ADP5020_MAX_BRIGHTNESS)) { - /* Disable Ambient Light auto adjust */ - ret |= adp5520_clr_bits(master, ADP5520_BL_CONTROL, - ADP5520_BL_AUTO_ADJ); - ret |= adp5520_write(master, ADP5520_DAYLIGHT_MAX, - brightness); - } else { - /* - * MAX_BRIGHTNESS -> Enable Ambient Light auto adjust - * restore daylight l3 sysfs brightness - */ - ret |= adp5520_write(master, ADP5520_DAYLIGHT_MAX, - data->cached_daylight_max); - ret |= adp5520_set_bits(master, ADP5520_BL_CONTROL, - ADP5520_BL_AUTO_ADJ); - } - } else { - ret |= adp5520_write(master, ADP5520_DAYLIGHT_MAX, brightness); - } - - if (data->current_brightness && brightness == 0) - ret |= adp5520_set_bits(master, - ADP5520_MODE_STATUS, ADP5520_DIM_EN); - else if (data->current_brightness == 0 && brightness) - ret |= adp5520_clr_bits(master, - ADP5520_MODE_STATUS, ADP5520_DIM_EN); - - if (!ret) - data->current_brightness = brightness; - - return ret; -} - -static int adp5520_bl_update_status(struct backlight_device *bl) -{ - int brightness = bl->props.brightness; - if (bl->props.power != FB_BLANK_UNBLANK) - brightness = 0; - - if (bl->props.fb_blank != FB_BLANK_UNBLANK) - brightness = 0; - - return adp5520_bl_set(bl, brightness); -} - -static int adp5520_bl_get_brightness(struct backlight_device *bl) -{ - struct adp5520_bl *data = bl_get_data(bl); - int error; - uint8_t reg_val; - - error = adp5520_read(data->master, ADP5520_BL_VALUE, ®_val); - - return error ? data->current_brightness : reg_val; -} - -static const struct backlight_ops adp5520_bl_ops = { - .update_status = adp5520_bl_update_status, - .get_brightness = adp5520_bl_get_brightness, -}; - -static int adp5520_bl_setup(struct backlight_device *bl) -{ - struct adp5520_bl *data = bl_get_data(bl); - struct device *master = data->master; - struct adp5520_backlight_platform_data *pdata = data->pdata; - int ret = 0; - - ret |= adp5520_write(master, ADP5520_DAYLIGHT_MAX, - pdata->l1_daylight_max); - ret |= adp5520_write(master, ADP5520_DAYLIGHT_DIM, - pdata->l1_daylight_dim); - - if (pdata->en_ambl_sens) { - data->cached_daylight_max = pdata->l1_daylight_max; - ret |= adp5520_write(master, ADP5520_OFFICE_MAX, - pdata->l2_office_max); - ret |= adp5520_write(master, ADP5520_OFFICE_DIM, - pdata->l2_office_dim); - ret |= adp5520_write(master, ADP5520_DARK_MAX, - pdata->l3_dark_max); - ret |= adp5520_write(master, ADP5520_DARK_DIM, - pdata->l3_dark_dim); - ret |= adp5520_write(master, ADP5520_L2_TRIP, - pdata->l2_trip); - ret |= adp5520_write(master, ADP5520_L2_HYS, - pdata->l2_hyst); - ret |= adp5520_write(master, ADP5520_L3_TRIP, - pdata->l3_trip); - ret |= adp5520_write(master, ADP5520_L3_HYS, - pdata->l3_hyst); - ret |= adp5520_write(master, ADP5520_ALS_CMPR_CFG, - ALS_CMPR_CFG_VAL(pdata->abml_filt, - ADP5520_L3_EN)); - } - - ret |= adp5520_write(master, ADP5520_BL_CONTROL, - BL_CTRL_VAL(pdata->fade_led_law, - pdata->en_ambl_sens)); - - ret |= adp5520_write(master, ADP5520_BL_FADE, FADE_VAL(pdata->fade_in, - pdata->fade_out)); - - ret |= adp5520_set_bits(master, ADP5520_MODE_STATUS, - ADP5520_BL_EN | ADP5520_DIM_EN); - - return ret; -} - -static ssize_t adp5520_show(struct device *dev, char *buf, int reg) -{ - struct adp5520_bl *data = dev_get_drvdata(dev); - int error; - uint8_t reg_val; - - mutex_lock(&data->lock); - error = adp5520_read(data->master, reg, ®_val); - mutex_unlock(&data->lock); - - return sprintf(buf, "%u\n", reg_val); -} - -static ssize_t adp5520_store(struct device *dev, const char *buf, - size_t count, int reg) -{ - struct adp5520_bl *data = dev_get_drvdata(dev); - unsigned long val; - int ret; - - ret = strict_strtoul(buf, 10, &val); - if (ret) - return ret; - - mutex_lock(&data->lock); - adp5520_write(data->master, reg, val); - mutex_unlock(&data->lock); - - return count; -} - -static ssize_t adp5520_bl_dark_max_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return adp5520_show(dev, buf, ADP5520_DARK_MAX); -} - -static ssize_t adp5520_bl_dark_max_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - return adp5520_store(dev, buf, count, ADP5520_DARK_MAX); -} -static DEVICE_ATTR(dark_max, 0664, adp5520_bl_dark_max_show, - adp5520_bl_dark_max_store); - -static ssize_t adp5520_bl_office_max_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return adp5520_show(dev, buf, ADP5520_OFFICE_MAX); -} - -static ssize_t adp5520_bl_office_max_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - return adp5520_store(dev, buf, count, ADP5520_OFFICE_MAX); -} -static DEVICE_ATTR(office_max, 0664, adp5520_bl_office_max_show, - adp5520_bl_office_max_store); - -static ssize_t adp5520_bl_daylight_max_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return adp5520_show(dev, buf, ADP5520_DAYLIGHT_MAX); -} - -static ssize_t adp5520_bl_daylight_max_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct adp5520_bl *data = dev_get_drvdata(dev); - int ret; - - ret = strict_strtoul(buf, 10, &data->cached_daylight_max); - if (ret < 0) - return ret; - - return adp5520_store(dev, buf, count, ADP5520_DAYLIGHT_MAX); -} -static DEVICE_ATTR(daylight_max, 0664, adp5520_bl_daylight_max_show, - adp5520_bl_daylight_max_store); - -static ssize_t adp5520_bl_dark_dim_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return adp5520_show(dev, buf, ADP5520_DARK_DIM); -} - -static ssize_t adp5520_bl_dark_dim_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - return adp5520_store(dev, buf, count, ADP5520_DARK_DIM); -} -static DEVICE_ATTR(dark_dim, 0664, adp5520_bl_dark_dim_show, - adp5520_bl_dark_dim_store); - -static ssize_t adp5520_bl_office_dim_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return adp5520_show(dev, buf, ADP5520_OFFICE_DIM); -} - -static ssize_t adp5520_bl_office_dim_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - return adp5520_store(dev, buf, count, ADP5520_OFFICE_DIM); -} -static DEVICE_ATTR(office_dim, 0664, adp5520_bl_office_dim_show, - adp5520_bl_office_dim_store); - -static ssize_t adp5520_bl_daylight_dim_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return adp5520_show(dev, buf, ADP5520_DAYLIGHT_DIM); -} - -static ssize_t adp5520_bl_daylight_dim_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - return adp5520_store(dev, buf, count, ADP5520_DAYLIGHT_DIM); -} -static DEVICE_ATTR(daylight_dim, 0664, adp5520_bl_daylight_dim_show, - adp5520_bl_daylight_dim_store); - -static struct attribute *adp5520_bl_attributes[] = { - &dev_attr_dark_max.attr, - &dev_attr_dark_dim.attr, - &dev_attr_office_max.attr, - &dev_attr_office_dim.attr, - &dev_attr_daylight_max.attr, - &dev_attr_daylight_dim.attr, - NULL -}; - -static const struct attribute_group adp5520_bl_attr_group = { - .attrs = adp5520_bl_attributes, -}; - -static int __devinit adp5520_bl_probe(struct platform_device *pdev) -{ - struct backlight_properties props; - struct backlight_device *bl; - struct adp5520_bl *data; - int ret = 0; - - data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); - if (data == NULL) - return -ENOMEM; - - data->master = pdev->dev.parent; - data->pdata = pdev->dev.platform_data; - - if (data->pdata == NULL) { - dev_err(&pdev->dev, "missing platform data\n"); - return -ENODEV; - } - - data->id = pdev->id; - data->current_brightness = 0; - - mutex_init(&data->lock); - - memset(&props, 0, sizeof(struct backlight_properties)); - props.type = BACKLIGHT_RAW; - props.max_brightness = ADP5020_MAX_BRIGHTNESS; - bl = backlight_device_register(pdev->name, data->master, data, - &adp5520_bl_ops, &props); - if (IS_ERR(bl)) { - dev_err(&pdev->dev, "failed to register backlight\n"); - return PTR_ERR(bl); - } - - bl->props.brightness = ADP5020_MAX_BRIGHTNESS; - if (data->pdata->en_ambl_sens) - ret = sysfs_create_group(&bl->dev.kobj, - &adp5520_bl_attr_group); - - if (ret) { - dev_err(&pdev->dev, "failed to register sysfs\n"); - backlight_device_unregister(bl); - } - - platform_set_drvdata(pdev, bl); - ret |= adp5520_bl_setup(bl); - backlight_update_status(bl); - - return ret; -} - -static int __devexit adp5520_bl_remove(struct platform_device *pdev) -{ - struct backlight_device *bl = platform_get_drvdata(pdev); - struct adp5520_bl *data = bl_get_data(bl); - - adp5520_clr_bits(data->master, ADP5520_MODE_STATUS, ADP5520_BL_EN); - - if (data->pdata->en_ambl_sens) - sysfs_remove_group(&bl->dev.kobj, - &adp5520_bl_attr_group); - - backlight_device_unregister(bl); - - return 0; -} - -#ifdef CONFIG_PM -static int adp5520_bl_suspend(struct platform_device *pdev, - pm_message_t state) -{ - struct backlight_device *bl = platform_get_drvdata(pdev); - return adp5520_bl_set(bl, 0); -} - -static int adp5520_bl_resume(struct platform_device *pdev) -{ - struct backlight_device *bl = platform_get_drvdata(pdev); - - backlight_update_status(bl); - return 0; -} -#else -#define adp5520_bl_suspend NULL -#define adp5520_bl_resume NULL -#endif - -static struct platform_driver adp5520_bl_driver = { - .driver = { - .name = "adp5520-backlight", - .owner = THIS_MODULE, - }, - .probe = adp5520_bl_probe, - .remove = __devexit_p(adp5520_bl_remove), - .suspend = adp5520_bl_suspend, - .resume = adp5520_bl_resume, -}; - -module_platform_driver(adp5520_bl_driver); - -MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>"); -MODULE_DESCRIPTION("ADP5520(01) Backlight Driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:adp5520-backlight"); |