/*********************************************************************************
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* Copyright: (C) 2017 LingYun IoT Studio <www.iot-yun.com>
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* All rights reserved.
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*
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* Filename: platdev_led.c
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* Description: This is the LED platform device
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*
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* Version: 1.0.0(10/27/2011~)
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* Author: Guo Wenxue <guowenxue@gmail.com>
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* ChangeLog: 1, Release initial version on "10/27/2011 11:39:10 AM"
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*
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********************************************************************************/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include "platdev_led.h"
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/* LED hardware informtation data*/
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static struct s3c_led_info s3c_leds[] = {
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[0] = {
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.num = 1,
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.gpio = S3C2410_GPB(5),
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.active_level = LOWLEVEL,
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.status = OFF,
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.blink = ENABLE,
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},
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[1] = {
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.num = 2,
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.gpio = S3C2410_GPB(6),
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.active_level = LOWLEVEL,
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.status = OFF,
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.blink = DISABLE,
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},
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[2] = {
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.num = 3,
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.gpio = S3C2410_GPB(8),
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.active_level = LOWLEVEL,
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.status = OFF,
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.blink = DISABLE,
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},
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[3] = {
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.num = 4,
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.gpio = S3C2410_GPB(10),
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.active_level = LOWLEVEL,
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.status = OFF,
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.blink = DISABLE,
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},
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};
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/* The LED platform device private data */
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static struct s3c_led_platform_data s3c_led_data = {
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.leds = s3c_leds,
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.nleds = ARRAY_SIZE(s3c_leds),
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};
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static void platform_led_release(struct device * dev)
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{
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int i;
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struct s3c_led_platform_data *pdata = dev->platform_data;
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for(i=0; i<pdata->nleds; i++)
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{
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/* Turn all LED off */
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s3c2410_gpio_setpin(pdata->leds[i].gpio, ~pdata->leds[i].active_level);
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}
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}
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static struct platform_device s3c_led_device = {
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.name = "s3c_led",
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.id = 1,
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.dev =
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{
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.platform_data = &s3c_led_data,
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.release = platform_led_release,
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},
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};
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static int __init platdev_led_init(void)
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{
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int rv = 0;
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rv = platform_device_register(&s3c_led_device);
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if(rv)
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{
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printk(KERN_ERR "%s:%d: Can't register platform device %d\n", __FUNCTION__,__LINE__, rv);
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return rv;
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}
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printk("Regist S3C LED Platform Device successfully.\n");
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return 0;
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}
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static void platdev_led_exit(void)
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{
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printk("%s():%d remove LED platform device\n", __FUNCTION__,__LINE__);
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platform_device_unregister(&s3c_led_device);
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}
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module_init(platdev_led_init);
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module_exit(platdev_led_exit);
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MODULE_AUTHOR("GuoWenxue<guowenxue@gmail.com>");
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MODULE_DESCRIPTION("FL2440 LED driver platform device");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:s3c_platdev_led");
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