138 lines
3.6 KiB
C
138 lines
3.6 KiB
C
#include <linux/module.h>
|
||
#include <linux/init.h>
|
||
#include <linux/kernel.h>
|
||
#include <linux/sched.h>
|
||
#include <linux/cdev.h>
|
||
#include <linux/fs.h>
|
||
#include <linux/wait.h>
|
||
#include <linux/errno.h>
|
||
#include <linux/slab.h>
|
||
#include <linux/uaccess.h>
|
||
#include <linux/device.h>
|
||
#include <linux/platform_device.h>
|
||
|
||
|
||
#define CCM_CCGR1 0x020C406C //时钟控制寄存器
|
||
#define IOMUXC_SW_MUX_CTL_PAD_GPIO1_IO04 0x020E006C //GPIO1_04复用功能选择寄存器
|
||
#define IOMUXC_SW_PAD_CTL_PAD_GPIO1_IO04 0x020E02F8 //PAD属性设置寄存器
|
||
#define GPIO1_GDIR 0x0209C004 //GPIO方向设置寄存器（输入或输出）
|
||
#define GPIO1_DR 0x0209C000 //GPIO输出状态寄存器
|
||
|
||
#define CCM_CCGR3 0x020C4074
|
||
#define GPIO4_GDIR 0x020A8004
|
||
#define GPIO4_DR 0x020A8000
|
||
|
||
#define IOMUXC_SW_MUX_CTL_PAD_GPIO4_IO020 0x020E01E0
|
||
#define IOMUXC_SW_PAD_CTL_PAD_GPIO4_IO020 0x020E046C
|
||
|
||
#define IOMUXC_SW_MUX_CTL_PAD_GPIO4_IO019 0x020E01DC
|
||
#define IOMUXC_SW_PAD_CTL_PAD_GPIO4_IO019 0x020E0468
|
||
|
||
|
||
static int led_cdev_release(struct inode *inode, struct file *filp)
|
||
{
|
||
return 0;
|
||
}
|
||
|
||
static struct resource rled_resource[] = {
|
||
[0] = DEFINE_RES_MEM(GPIO1_DR, 4),
|
||
[1] = DEFINE_RES_MEM(GPIO1_GDIR, 4),
|
||
[2] = DEFINE_RES_MEM(IOMUXC_SW_MUX_CTL_PAD_GPIO1_IO04, 4),
|
||
[3] = DEFINE_RES_MEM(CCM_CCGR1, 4),
|
||
[4] = DEFINE_RES_MEM(IOMUXC_SW_PAD_CTL_PAD_GPIO1_IO04, 4),
|
||
};
|
||
|
||
unsigned int rled_hwinfo[2] = { 4, 26 };
|
||
|
||
static struct platform_device rled_pdev = {
|
||
.name = "led_pdev",
|
||
.id = 0,
|
||
.num_resources = ARRAY_SIZE(rled_resource),
|
||
.resource = rled_resource,
|
||
.dev = {
|
||
.release = led_cdev_release,
|
||
.platform_data = rled_hwinfo,
|
||
},
|
||
|
||
};
|
||
|
||
static struct resource gled_resource[] = {
|
||
[0] = DEFINE_RES_MEM(GPIO4_DR, 4),
|
||
[1] = DEFINE_RES_MEM(GPIO4_GDIR, 4),
|
||
[2] = DEFINE_RES_MEM(IOMUXC_SW_MUX_CTL_PAD_GPIO4_IO020, 4),
|
||
[3] = DEFINE_RES_MEM(CCM_CCGR1, 4),
|
||
[4] = DEFINE_RES_MEM(IOMUXC_SW_PAD_CTL_PAD_GPIO4_IO020, 4),
|
||
};
|
||
|
||
unsigned int gled_hwinfo[2] = { 20, 12 };
|
||
|
||
|
||
static struct platform_device gled_pdev = {
|
||
.name = "led_pdev",
|
||
.id = 1,
|
||
.num_resources = ARRAY_SIZE(gled_resource),
|
||
.resource = gled_resource,
|
||
.dev = {
|
||
.release = led_cdev_release,
|
||
.platform_data = gled_hwinfo,
|
||
},
|
||
|
||
};
|
||
|
||
|
||
static struct resource bled_resource[] = {
|
||
[0] = DEFINE_RES_MEM(GPIO4_DR, 4),
|
||
[1] = DEFINE_RES_MEM(GPIO4_GDIR, 4),
|
||
[2] = DEFINE_RES_MEM(IOMUXC_SW_MUX_CTL_PAD_GPIO4_IO019, 4),
|
||
[3] = DEFINE_RES_MEM(CCM_CCGR1, 4),
|
||
[4] = DEFINE_RES_MEM(IOMUXC_SW_PAD_CTL_PAD_GPIO4_IO019, 4),
|
||
};
|
||
|
||
|
||
unsigned int bled_hwinfo[2] = { 19, 12 };
|
||
|
||
|
||
static struct platform_device bled_pdev = {
|
||
.name = "led_pdev",
|
||
.id = 2,
|
||
.num_resources = ARRAY_SIZE(bled_resource),
|
||
.resource = bled_resource,
|
||
.dev = {
|
||
.release = led_cdev_release,
|
||
.platform_data = bled_hwinfo,
|
||
},
|
||
|
||
};
|
||
|
||
|
||
|
||
|
||
static __init int led_pdev_init(void)
|
||
{
|
||
printk("pdev init\n");
|
||
platform_device_register(&rled_pdev);
|
||
platform_device_register(&gled_pdev);
|
||
platform_device_register(&bled_pdev);
|
||
return 0;
|
||
|
||
}
|
||
module_init(led_pdev_init);
|
||
|
||
|
||
static __exit void led_pdev_exit(void)
|
||
{
|
||
printk("pdev exit\n");
|
||
platform_device_unregister(&bled_pdev);
|
||
platform_device_unregister(&gled_pdev);
|
||
platform_device_unregister(&rled_pdev);
|
||
}
|
||
module_exit(led_pdev_exit);
|
||
|
||
|
||
MODULE_AUTHOR("liuchao");
|
||
MODULE_LICENSE("GPL");
|
||
MODULE_DESCRIPTION("the example for platform driver");
|
||
|
||
|
||
|