dect
/
linux-2.6
Archived
13
0
Fork 0
Code Releases Activity

[PATCH] leds: Amstrad Delta LED support 

Use the new LED infrastructure to support the 6 LEDs present on the Amstrad
Delta.

[akpm@osdl.org: cleanup]
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Ackde-by: Richard Purdie <rpurdie@rpsys.net>
Cc: Ben Dooks <ben@fluff.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jonathan McDowell 2006-06-23 02:05:33 -07:00 committed by Linus Torvalds
parent 83d4e6e7fb
commit 9becde79d2
4 changed files with 180 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
arch/arm/mach-omap1/board-ams-delta.c
View File

@ -84,6 +84,15 @@ static struct omap_board_config_kernel ams_delta_config[] = {
{ OMAP_TAG_UART, &ams_delta_uart_config },
};
static struct platform_device ams_delta_led_device = {
.name = "ams-delta-led",
.id = -1
};
static struct platform_device *ams_delta_devices[] __initdata = {
&ams_delta_led_device,
};
static void __init ams_delta_init(void)
{
iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
@ -94,6 +103,8 @@ static void __init ams_delta_init(void)
/* Clear latch2 (NAND, LCD, modem enable) */
ams_delta_latch2_write(~0, 0);
platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices));
}
static void __init ams_delta_map_io(void)

6
drivers/leds/Kconfig
View File

@ -63,6 +63,12 @@ config LEDS_S3C24XX
This option enables support for LEDs connected to GPIO lines
on Samsung S3C24XX series CPUs, such as the S3C2410 and S3C2440.
config LEDS_AMS_DELTA
tristate "LED Support for the Amstrad Delta (E3)"
depends LEDS_CLASS && MACH_AMS_DELTA
help
This option enables support for the LEDs on Amstrad Delta (E3).
comment "LED Triggers"
config LEDS_TRIGGERS

1
drivers/leds/Makefile
View File

@ -11,6 +11,7 @@ obj-$(CONFIG_LEDS_SPITZ) += leds-spitz.o
obj-$(CONFIG_LEDS_IXP4XX) += leds-ixp4xx-gpio.o
obj-$(CONFIG_LEDS_TOSA) += leds-tosa.o
obj-$(CONFIG_LEDS_S3C24XX) += leds-s3c24xx.o
obj-$(CONFIG_LEDS_AMS_DELTA) += leds-ams-delta.o
# LED Triggers
obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o

162
drivers/leds/leds-ams-delta.c Normal file
View File

@ -0,0 +1,162 @@
/*
* LEDs driver for Amstrad Delta (E3)
*
* Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
*
* 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/config.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <asm/arch/board-ams-delta.h>
/*
* Our context
*/
struct ams_delta_led {
struct led_classdev cdev;
u8 bitmask;
};
static void ams_delta_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct ams_delta_led *led_dev =
container_of(led_cdev, struct ams_delta_led, cdev);
if (value)
ams_delta_latch1_write(led_dev->bitmask, led_dev->bitmask);
else
ams_delta_latch1_write(led_dev->bitmask, 0);
}
static struct ams_delta_led ams_delta_leds[] = {
{
.cdev = {
.name = "ams-delta:camera",
.brightness_set = ams_delta_led_set,
},
.bitmask = AMS_DELTA_LATCH1_LED_CAMERA,
},
{
.cdev = {
.name = "ams-delta:advert",
.brightness_set = ams_delta_led_set,
},
.bitmask = AMS_DELTA_LATCH1_LED_ADVERT,
},
{
.cdev = {
.name = "ams-delta:email",
.brightness_set = ams_delta_led_set,
},
.bitmask = AMS_DELTA_LATCH1_LED_EMAIL,
},
{
.cdev = {
.name = "ams-delta:handsfree",
.brightness_set = ams_delta_led_set,
},
.bitmask = AMS_DELTA_LATCH1_LED_HANDSFREE,
},
{
.cdev = {
.name = "ams-delta:voicemail",
.brightness_set = ams_delta_led_set,
},
.bitmask = AMS_DELTA_LATCH1_LED_VOICEMAIL,
},
{
.cdev = {
.name = "ams-delta:voice",
.brightness_set = ams_delta_led_set,
},
.bitmask = AMS_DELTA_LATCH1_LED_VOICE,
},
};
#ifdef CONFIG_PM
static int ams_delta_led_suspend(struct platform_device *dev,
pm_message_t state)
{
int i;
for (i = 0; i < ARRAY_SIZE(ams_delta_leds); i++)
led_classdev_suspend(&ams_delta_leds[i].cdev);
return 0;
}
static int ams_delta_led_resume(struct platform_device *dev)
{
int i;
for (i = 0; i < ARRAY_SIZE(ams_delta_leds); i++)
led_classdev_resume(&ams_delta_leds[i].cdev);
return 0;
}
#else
#define ams_delta_led_suspend NULL
#define ams_delta_led_resume NULL
#endif
static int ams_delta_led_probe(struct platform_device *pdev)
{
int i;
int ret;
for (i = ret = 0; ret >= 0 && i < ARRAY_SIZE(ams_delta_leds); i++) {
ret = led_classdev_register(&pdev->dev,
&ams_delta_leds[i].cdev);
}
if (ret < 0 && i > 1) {
for (i = i - 2; i >= 0; i--)
led_classdev_unregister(&ams_delta_leds[i].cdev);
}
return ret;
}
static int ams_delta_led_remove(struct platform_device *pdev)
{
int i;
for (i = ARRAY_SIZE(ams_delta_leds) - 1; i >= 0; i--)
led_classdev_unregister(&ams_delta_leds[i].cdev);
return 0;
}
static struct platform_driver ams_delta_led_driver = {
.probe = ams_delta_led_probe,
.remove = ams_delta_led_remove,
.suspend = ams_delta_led_suspend,
.resume = ams_delta_led_resume,
.driver = {
.name = "ams-delta-led",
},
};
static int __init ams_delta_led_init(void)
{
return platform_driver_register(&ams_delta_led_driver);
}
static void __exit ams_delta_led_exit(void)
{
return platform_driver_unregister(&ams_delta_led_driver);
}
module_init(ams_delta_led_init);
module_exit(ams_delta_led_exit);
MODULE_AUTHOR("Jonathan McDowell <noodles@earth.li>");
MODULE_DESCRIPTION("Amstrad Delta LED driver");
MODULE_LICENSE("GPL");