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backlight: Rename the corgi backlight driver to generic
The corgi backlight driver is really generic code. This rename makes this a lot clearer and completes the partial rename made a while ago. Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Richard Purdie
parent
f4f6bda00f
commit
d00ba72672
@ -123,17 +123,14 @@ config BACKLIGHT_ATMEL_PWM
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To compile this driver as a module, choose M here: the module will be
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called atmel-pwm-bl.
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config BACKLIGHT_CORGI
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tristate "Generic (aka Sharp Corgi) Backlight Driver (DEPRECATED)"
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config BACKLIGHT_GENERIC
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tristate "Generic (aka Sharp Corgi) Backlight Driver"
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depends on BACKLIGHT_CLASS_DEVICE
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default n
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default y
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help
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Say y to enable the generic platform backlight driver previously
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known as the Corgi backlight driver. If you have a Sharp Zaurus
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SL-C7xx, SL-Cxx00 or SL-6000x say y. Most users can say n.
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Note: this driver is marked as deprecated, try enable SPI and
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use the new corgi_lcd driver with integrated backlight control
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SL-C7xx, SL-Cxx00 or SL-6000x say y.
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config BACKLIGHT_LOCOMO
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tristate "Sharp LOCOMO LCD/Backlight Driver"
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@ -11,7 +11,7 @@ obj-$(CONFIG_LCD_TOSA) += tosa_lcd.o
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obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o
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obj-$(CONFIG_BACKLIGHT_ATMEL_PWM) += atmel-pwm-bl.o
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obj-$(CONFIG_BACKLIGHT_CORGI) += corgi_bl.o
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obj-$(CONFIG_BACKLIGHT_GENERIC) += generic_bl.o
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obj-$(CONFIG_BACKLIGHT_HP680) += hp680_bl.o
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obj-$(CONFIG_BACKLIGHT_LOCOMO) += locomolcd.o
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obj-$(CONFIG_BACKLIGHT_OMAP1) += omap1_bl.o
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@ -1,148 +0,0 @@
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/*
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* Backlight Driver for Sharp Zaurus Handhelds (various models)
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*
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* Copyright (c) 2004-2006 Richard Purdie
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*
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* Based on Sharp's 2.4 Backlight Driver
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/mutex.h>
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#include <linux/fb.h>
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#include <linux/backlight.h>
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static int corgibl_intensity;
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static struct backlight_properties corgibl_data;
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static struct backlight_device *corgi_backlight_device;
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static struct generic_bl_info *bl_machinfo;
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/* Flag to signal when the battery is low */
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#define CORGIBL_BATTLOW BL_CORE_DRIVER1
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static int corgibl_send_intensity(struct backlight_device *bd)
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{
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int intensity = bd->props.brightness;
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if (bd->props.power != FB_BLANK_UNBLANK)
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intensity = 0;
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if (bd->props.state & BL_CORE_FBBLANK)
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intensity = 0;
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if (bd->props.state & BL_CORE_SUSPENDED)
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intensity = 0;
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if (bd->props.state & CORGIBL_BATTLOW)
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intensity &= bl_machinfo->limit_mask;
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bl_machinfo->set_bl_intensity(intensity);
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corgibl_intensity = intensity;
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if (bl_machinfo->kick_battery)
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bl_machinfo->kick_battery();
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return 0;
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}
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static int corgibl_get_intensity(struct backlight_device *bd)
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{
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return corgibl_intensity;
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}
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/*
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* Called when the battery is low to limit the backlight intensity.
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* If limit==0 clear any limit, otherwise limit the intensity
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*/
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void corgibl_limit_intensity(int limit)
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{
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struct backlight_device *bd = corgi_backlight_device;
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mutex_lock(&bd->ops_lock);
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if (limit)
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bd->props.state |= CORGIBL_BATTLOW;
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else
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bd->props.state &= ~CORGIBL_BATTLOW;
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backlight_update_status(corgi_backlight_device);
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mutex_unlock(&bd->ops_lock);
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}
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EXPORT_SYMBOL(corgibl_limit_intensity);
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static struct backlight_ops corgibl_ops = {
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.options = BL_CORE_SUSPENDRESUME,
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.get_brightness = corgibl_get_intensity,
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.update_status = corgibl_send_intensity,
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};
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static int corgibl_probe(struct platform_device *pdev)
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{
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struct generic_bl_info *machinfo = pdev->dev.platform_data;
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const char *name = "generic-bl";
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bl_machinfo = machinfo;
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if (!machinfo->limit_mask)
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machinfo->limit_mask = -1;
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if (machinfo->name)
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name = machinfo->name;
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corgi_backlight_device = backlight_device_register (name,
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&pdev->dev, NULL, &corgibl_ops);
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if (IS_ERR (corgi_backlight_device))
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return PTR_ERR (corgi_backlight_device);
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platform_set_drvdata(pdev, corgi_backlight_device);
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corgi_backlight_device->props.max_brightness = machinfo->max_intensity;
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corgi_backlight_device->props.power = FB_BLANK_UNBLANK;
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corgi_backlight_device->props.brightness = machinfo->default_intensity;
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backlight_update_status(corgi_backlight_device);
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printk("Corgi Backlight Driver Initialized.\n");
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return 0;
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}
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static int corgibl_remove(struct platform_device *pdev)
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{
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struct backlight_device *bd = platform_get_drvdata(pdev);
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corgibl_data.power = 0;
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corgibl_data.brightness = 0;
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backlight_update_status(bd);
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backlight_device_unregister(bd);
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printk("Corgi Backlight Driver Unloaded\n");
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return 0;
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}
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static struct platform_driver corgibl_driver = {
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.probe = corgibl_probe,
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.remove = corgibl_remove,
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.driver = {
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.name = "generic-bl",
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},
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};
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static int __init corgibl_init(void)
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{
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return platform_driver_register(&corgibl_driver);
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}
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static void __exit corgibl_exit(void)
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{
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platform_driver_unregister(&corgibl_driver);
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}
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module_init(corgibl_init);
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module_exit(corgibl_exit);
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MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
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MODULE_DESCRIPTION("Corgi Backlight Driver");
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MODULE_LICENSE("GPL");
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147
drivers/video/backlight/generic_bl.c
Normal file
147
drivers/video/backlight/generic_bl.c
Normal file
@ -0,0 +1,147 @@
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/*
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* Generic Backlight Driver
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*
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* Copyright (c) 2004-2008 Richard Purdie
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/mutex.h>
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#include <linux/fb.h>
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#include <linux/backlight.h>
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static int genericbl_intensity;
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static struct backlight_device *generic_backlight_device;
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static struct generic_bl_info *bl_machinfo;
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/* Flag to signal when the battery is low */
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#define GENERICBL_BATTLOW BL_CORE_DRIVER1
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static int genericbl_send_intensity(struct backlight_device *bd)
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{
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int intensity = bd->props.brightness;
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if (bd->props.power != FB_BLANK_UNBLANK)
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intensity = 0;
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if (bd->props.state & BL_CORE_FBBLANK)
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intensity = 0;
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if (bd->props.state & BL_CORE_SUSPENDED)
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intensity = 0;
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if (bd->props.state & GENERICBL_BATTLOW)
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intensity &= bl_machinfo->limit_mask;
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bl_machinfo->set_bl_intensity(intensity);
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genericbl_intensity = intensity;
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if (bl_machinfo->kick_battery)
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bl_machinfo->kick_battery();
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return 0;
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}
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static int genericbl_get_intensity(struct backlight_device *bd)
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{
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return genericbl_intensity;
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}
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/*
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* Called when the battery is low to limit the backlight intensity.
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* If limit==0 clear any limit, otherwise limit the intensity
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*/
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void corgibl_limit_intensity(int limit)
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{
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struct backlight_device *bd = generic_backlight_device;
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mutex_lock(&bd->ops_lock);
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if (limit)
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bd->props.state |= GENERICBL_BATTLOW;
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else
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bd->props.state &= ~GENERICBL_BATTLOW;
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backlight_update_status(generic_backlight_device);
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mutex_unlock(&bd->ops_lock);
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}
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EXPORT_SYMBOL(corgibl_limit_intensity);
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static struct backlight_ops genericbl_ops = {
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.options = BL_CORE_SUSPENDRESUME,
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.get_brightness = genericbl_get_intensity,
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.update_status = genericbl_send_intensity,
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};
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static int genericbl_probe(struct platform_device *pdev)
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{
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struct generic_bl_info *machinfo = pdev->dev.platform_data;
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const char *name = "generic-bl";
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struct backlight_device *bd;
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bl_machinfo = machinfo;
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if (!machinfo->limit_mask)
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machinfo->limit_mask = -1;
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if (machinfo->name)
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name = machinfo->name;
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bd = backlight_device_register (name,
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&pdev->dev, NULL, &genericbl_ops);
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if (IS_ERR (bd))
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return PTR_ERR (bd);
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platform_set_drvdata(pdev, bd);
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bd->props.max_brightness = machinfo->max_intensity;
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bd->props.power = FB_BLANK_UNBLANK;
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bd->props.brightness = machinfo->default_intensity;
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backlight_update_status(bd);
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generic_backlight_device = bd;
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printk("Generic Backlight Driver Initialized.\n");
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return 0;
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}
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static int genericbl_remove(struct platform_device *pdev)
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{
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struct backlight_device *bd = platform_get_drvdata(pdev);
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bd->props.power = 0;
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bd->props.brightness = 0;
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backlight_update_status(bd);
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backlight_device_unregister(bd);
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printk("Generic Backlight Driver Unloaded\n");
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return 0;
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}
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static struct platform_driver genericbl_driver = {
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.probe = genericbl_probe,
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.remove = genericbl_remove,
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.driver = {
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.name = "generic-bl",
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},
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};
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static int __init genericbl_init(void)
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{
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return platform_driver_register(&genericbl_driver);
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}
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static void __exit genericbl_exit(void)
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{
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platform_driver_unregister(&genericbl_driver);
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}
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module_init(genericbl_init);
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module_exit(genericbl_exit);
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MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
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MODULE_DESCRIPTION("Generic Backlight Driver");
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MODULE_LICENSE("GPL");
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