87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
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#include <assert.h>
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#include <stdio.h>
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#include <u_vmam.h>
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#include <u_sleep.h>
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#include <u_sys.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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void delay_ms(int ms)
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{
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u_sleep_ms(ms);
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}
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typedef union mk_pin_cfg
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{
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struct
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{
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uint16_t mode;
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uint16_t pin;
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};
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uint32_t cfg_raw;
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} mk_pin_cfg_t;
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enum mk_pin_mode
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{
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MK_PIN_MODE_NONE = 1,
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MK_PIN_MODE_OUTPUT,
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MK_PIN_MODE_OUTPUT_OD,
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MK_PIN_MODE_INPUT,
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MK_PIN_MODE_INPUT_DOWN,
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MK_PIN_MODE_INPUT_UP,
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MK_PIN_MODE_IRQ_RISING,
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MK_PIN_MODE_IRQ_FALLING,
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MK_PIN_MODE_IRQ_EDGE,
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MK_PIN_MODE_IRQ_LOW,
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MK_PIN_MODE_IRQ_HIGH,
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};
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enum mk_pin_ioctl_op
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{
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MK_PIN_SET_MODE, //!< 设置模式
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MK_PIN_GET_MODE, //!< 获取模式
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MK_PIN_SET_OP_PIN, //!< 设置要操作的引脚，标记读写的起始引脚
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};
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int main(int argc, char *argv[])
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{
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printf("drv test init..\n");
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int fd = open("/pin", O_RDWR, 0777);
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int ret;
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if (fd < 0)
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{
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return fd;
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}
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ioctl(fd, MK_PIN_SET_MODE, ((mk_pin_cfg_t){
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.mode = MK_PIN_MODE_OUTPUT,
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.pin = 12,
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})
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.cfg_raw);
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ret = ioctl(fd, MK_PIN_GET_MODE, ((mk_pin_cfg_t){
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.pin = 12,
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})
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.cfg_raw);
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printf("ret = %d\n", ret);
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assert(MK_PIN_MODE_OUTPUT == ret);
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uint8_t val = 1;
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lseek(fd, 12, SEEK_SET);
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ret = write(fd, &val, 1);
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assert(ret == 1);
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val = 0;
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ret = read(fd, &val, 1);
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assert(ret == 1);
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assert(val == 1);
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while (1)
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{
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val = 1;
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// delay_ms(500);
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lseek(fd, 12, SEEK_SET);
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write(fd, &val, 1);
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val = 0;
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// delay_ms(500);
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lseek(fd, 12, SEEK_SET);
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write(fd, &val, 1);
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}
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}
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