diff options
Diffstat (limited to 'drivers/video/backlight/corgi_bl.c')
| -rw-r--r-- | drivers/video/backlight/corgi_bl.c | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/drivers/video/backlight/corgi_bl.c b/drivers/video/backlight/corgi_bl.c deleted file mode 100644 index 2ebbfd95145..00000000000 --- a/drivers/video/backlight/corgi_bl.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Backlight Driver for Sharp Zaurus Handhelds (various models) - * - * Copyright (c) 2004-2006 Richard Purdie - * - * Based on Sharp's 2.4 Backlight Driver - * - * 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 <asm/arch/sharpsl.h> -#include <asm/hardware/sharpsl_pm.h> - -static int corgibl_intensity; -static DEFINE_MUTEX(bl_mutex); -static struct backlight_properties corgibl_data; -static struct backlight_device *corgi_backlight_device; -static struct corgibl_machinfo *bl_machinfo; - -static unsigned long corgibl_flags; -#define CORGIBL_SUSPENDED 0x01 -#define CORGIBL_BATTLOW 0x02 - -static int corgibl_send_intensity(struct backlight_device *bd) -{ - void (*corgi_kick_batt)(void); - 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 (corgibl_flags & CORGIBL_SUSPENDED) - intensity = 0; - if (corgibl_flags & CORGIBL_BATTLOW) - intensity &= bl_machinfo->limit_mask; - - mutex_lock(&bl_mutex); - bl_machinfo->set_bl_intensity(intensity); - mutex_unlock(&bl_mutex); - - corgibl_intensity = intensity; - - corgi_kick_batt = symbol_get(sharpsl_battery_kick); - if (corgi_kick_batt) { - corgi_kick_batt(); - symbol_put(sharpsl_battery_kick); - } - - return 0; -} - -#ifdef CONFIG_PM -static int corgibl_suspend(struct platform_device *dev, pm_message_t state) -{ - corgibl_flags |= CORGIBL_SUSPENDED; - corgibl_send_intensity(corgi_backlight_device); - return 0; -} - -static int corgibl_resume(struct platform_device *dev) -{ - corgibl_flags &= ~CORGIBL_SUSPENDED; - corgibl_send_intensity(corgi_backlight_device); - return 0; -} -#else -#define corgibl_suspend NULL -#define corgibl_resume NULL -#endif - -static int corgibl_get_intensity(struct backlight_device *bd) -{ - return corgibl_intensity; -} - -static int corgibl_set_intensity(struct backlight_device *bd) -{ - corgibl_send_intensity(corgi_backlight_device); - return 0; -} - -/* - * Called when the battery is low to limit the backlight intensity. - * If limit==0 clear any limit, otherwise limit the intensity - */ -void corgibl_limit_intensity(int limit) -{ - if (limit) - corgibl_flags |= CORGIBL_BATTLOW; - else - corgibl_flags &= ~CORGIBL_BATTLOW; - corgibl_send_intensity(corgi_backlight_device); -} -EXPORT_SYMBOL(corgibl_limit_intensity); - - -static struct backlight_properties corgibl_data = { - .owner = THIS_MODULE, - .get_brightness = corgibl_get_intensity, - .update_status = corgibl_set_intensity, -}; - -static int __init corgibl_probe(struct platform_device *pdev) -{ - struct corgibl_machinfo *machinfo = pdev->dev.platform_data; - - bl_machinfo = machinfo; - corgibl_data.max_brightness = machinfo->max_intensity; - if (!machinfo->limit_mask) - machinfo->limit_mask = -1; - - corgi_backlight_device = backlight_device_register ("corgi-bl", - NULL, &corgibl_data); - if (IS_ERR (corgi_backlight_device)) - return PTR_ERR (corgi_backlight_device); - - corgibl_data.power = FB_BLANK_UNBLANK; - corgibl_data.brightness = machinfo->default_intensity; - corgibl_send_intensity(corgi_backlight_device); - - printk("Corgi Backlight Driver Initialized.\n"); - return 0; -} - -static int corgibl_remove(struct platform_device *dev) -{ - backlight_device_unregister(corgi_backlight_device); - - printk("Corgi Backlight Driver Unloaded\n"); - return 0; -} - -static struct platform_driver corgibl_driver = { - .probe = corgibl_probe, - .remove = corgibl_remove, - .suspend = corgibl_suspend, - .resume = corgibl_resume, - .driver = { - .name = "corgi-bl", - }, -}; - -static int __init corgibl_init(void) -{ - return platform_driver_register(&corgibl_driver); -} - -static void __exit corgibl_exit(void) -{ - platform_driver_unregister(&corgibl_driver); -} - -module_init(corgibl_init); -module_exit(corgibl_exit); - -MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>"); -MODULE_DESCRIPTION("Corgi Backlight Driver"); -MODULE_LICENSE("GPLv2"); |