diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/video/backlight/kb3886_bl.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/video/backlight/kb3886_bl.c | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/ANDROID_3.4.5/drivers/video/backlight/kb3886_bl.c b/ANDROID_3.4.5/drivers/video/backlight/kb3886_bl.c deleted file mode 100644 index 72dd5556..00000000 --- a/ANDROID_3.4.5/drivers/video/backlight/kb3886_bl.c +++ /dev/null @@ -1,209 +0,0 @@ -/* - * Backlight Driver for the KB3886 Backlight - * - * Copyright (c) 2007-2008 Claudio Nieder - * - * Based on corgi_bl.c by Richard Purdie and kb3886 driver by Robert Woerle - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/mutex.h> -#include <linux/fb.h> -#include <linux/backlight.h> -#include <linux/delay.h> -#include <linux/dmi.h> - -#define KB3886_PARENT 0x64 -#define KB3886_IO 0x60 -#define KB3886_ADC_DAC_PWM 0xC4 -#define KB3886_PWM0_WRITE 0x81 -#define KB3886_PWM0_READ 0x41 - -static DEFINE_MUTEX(bl_mutex); - -static void kb3886_bl_set_intensity(int intensity) -{ - mutex_lock(&bl_mutex); - intensity = intensity&0xff; - outb(KB3886_ADC_DAC_PWM, KB3886_PARENT); - msleep(10); - outb(KB3886_PWM0_WRITE, KB3886_IO); - msleep(10); - outb(intensity, KB3886_IO); - mutex_unlock(&bl_mutex); -} - -struct kb3886bl_machinfo { - int max_intensity; - int default_intensity; - int limit_mask; - void (*set_bl_intensity)(int intensity); -}; - -static struct kb3886bl_machinfo kb3886_bl_machinfo = { - .max_intensity = 0xff, - .default_intensity = 0xa0, - .limit_mask = 0x7f, - .set_bl_intensity = kb3886_bl_set_intensity, -}; - -static struct platform_device kb3886bl_device = { - .name = "kb3886-bl", - .dev = { - .platform_data = &kb3886_bl_machinfo, - }, - .id = -1, -}; - -static struct platform_device *devices[] __initdata = { - &kb3886bl_device, -}; - -/* - * Back to driver - */ - -static int kb3886bl_intensity; -static struct backlight_device *kb3886_backlight_device; -static struct kb3886bl_machinfo *bl_machinfo; - -static unsigned long kb3886bl_flags; -#define KB3886BL_SUSPENDED 0x01 - -static struct dmi_system_id __initdata kb3886bl_device_table[] = { - { - .ident = "Sahara Touch-iT", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "SDV"), - DMI_MATCH(DMI_PRODUCT_NAME, "iTouch T201"), - }, - }, - { } -}; - -static int kb3886bl_send_intensity(struct backlight_device *bd) -{ - int intensity = bd->props.brightness; - - if (bd->props.power != FB_BLANK_UNBLANK) - intensity = 0; - if (bd->props.fb_blank != FB_BLANK_UNBLANK) - intensity = 0; - if (kb3886bl_flags & KB3886BL_SUSPENDED) - intensity = 0; - - bl_machinfo->set_bl_intensity(intensity); - - kb3886bl_intensity = intensity; - return 0; -} - -#ifdef CONFIG_PM -static int kb3886bl_suspend(struct platform_device *pdev, pm_message_t state) -{ - struct backlight_device *bd = platform_get_drvdata(pdev); - - kb3886bl_flags |= KB3886BL_SUSPENDED; - backlight_update_status(bd); - return 0; -} - -static int kb3886bl_resume(struct platform_device *pdev) -{ - struct backlight_device *bd = platform_get_drvdata(pdev); - - kb3886bl_flags &= ~KB3886BL_SUSPENDED; - backlight_update_status(bd); - return 0; -} -#else -#define kb3886bl_suspend NULL -#define kb3886bl_resume NULL -#endif - -static int kb3886bl_get_intensity(struct backlight_device *bd) -{ - return kb3886bl_intensity; -} - -static const struct backlight_ops kb3886bl_ops = { - .get_brightness = kb3886bl_get_intensity, - .update_status = kb3886bl_send_intensity, -}; - -static int kb3886bl_probe(struct platform_device *pdev) -{ - struct backlight_properties props; - struct kb3886bl_machinfo *machinfo = pdev->dev.platform_data; - - bl_machinfo = machinfo; - if (!machinfo->limit_mask) - machinfo->limit_mask = -1; - - memset(&props, 0, sizeof(struct backlight_properties)); - props.type = BACKLIGHT_RAW; - props.max_brightness = machinfo->max_intensity; - kb3886_backlight_device = backlight_device_register("kb3886-bl", - &pdev->dev, NULL, - &kb3886bl_ops, - &props); - if (IS_ERR(kb3886_backlight_device)) - return PTR_ERR(kb3886_backlight_device); - - platform_set_drvdata(pdev, kb3886_backlight_device); - - kb3886_backlight_device->props.power = FB_BLANK_UNBLANK; - kb3886_backlight_device->props.brightness = machinfo->default_intensity; - backlight_update_status(kb3886_backlight_device); - - return 0; -} - -static int kb3886bl_remove(struct platform_device *pdev) -{ - struct backlight_device *bd = platform_get_drvdata(pdev); - - backlight_device_unregister(bd); - - return 0; -} - -static struct platform_driver kb3886bl_driver = { - .probe = kb3886bl_probe, - .remove = kb3886bl_remove, - .suspend = kb3886bl_suspend, - .resume = kb3886bl_resume, - .driver = { - .name = "kb3886-bl", - }, -}; - -static int __init kb3886_init(void) -{ - if (!dmi_check_system(kb3886bl_device_table)) - return -ENODEV; - - platform_add_devices(devices, ARRAY_SIZE(devices)); - return platform_driver_register(&kb3886bl_driver); -} - -static void __exit kb3886_exit(void) -{ - platform_driver_unregister(&kb3886bl_driver); -} - -module_init(kb3886_init); -module_exit(kb3886_exit); - -MODULE_AUTHOR("Claudio Nieder <private@claudio.ch>"); -MODULE_DESCRIPTION("Tabletkiosk Sahara Touch-iT Backlight Driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("dmi:*:svnSDV:pniTouchT201:*"); |