帮我写一个S5PV210 的利用定时器和蜂鸣器唱歌的程序

好的，以下是一个简单的S5PV210的利用定时器和蜂鸣器唱歌的程序，供参考：

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>

#define GPD0CON (*(volatile unsigned long *)0xE02000A0)
#define GPD0DAT (*(volatile unsigned long *)0xE02000A4)

#define TCFG0 (*(volatile unsigned long *)0xE2500000)
#define TCFG1 (*(volatile unsigned long *)0xE2500004)
#define TCON (*(volatile unsigned long *)0xE2500008)
#define TCNTB0 (*(volatile unsigned long *)0xE250000C)
#define TCMPB0 (*(volatile unsigned long *)0xE2500010)

void delay_ms(int ms) {
    usleep(ms * 1000);
}

void set_pwm(int freq, int duty) {
    int div = 255;
    int tcfg0 = 0x0;
    int tcfg1 = 0x0;

    TCON &= ~(1 << 2);
    TCON |= (1 << 1);
    TCON &= ~(1 << 1);

    tcfg0 = (1 << 16) | (div << 8) | 0xff;
    tcfg1 = (1 << 12);

    TCFG0 &= ~(0xff << 8);
    TCFG0 |= tcfg0;

    TCFG1 &= ~(0xf << 4);
    TCFG1 |= tcfg1;

    TCNTB0 = (1000000 / freq) - 1;
    TCMPB0 = (1000000 / freq * duty / 255) - 1;

    TCON |= (1 << 3);
    TCON &= ~(1 << 3);
}

void play_music(int *music, int len) {
    int i;
    for (i = 0; i < len; i++) {
        set_pwm(music[i], 128);
        delay_ms(200);
        set_pwm(0, 0);
        delay_ms(10);
    }
}

int main(int argc, char **argv) {
    int fd;
    volatile unsigned long *gpio;
    int music[] = { 523, 587, 659, 698, 784, 880, 988, 1047 };
    int len = sizeof(music) / sizeof(int);
    int i;

    fd = open("/dev/mem", O_RDWR | O_SYNC);
    if (fd < 0) {
        perror("open");
        exit(1);
    }

    gpio = mmap(NULL, 0x100, PROT_READ | PROT_WRITE, MAP_SHARED, fd, (off_t)0xE0200000);
    if (gpio == MAP_FAILED) {
        perror("mmap");
        exit(1);
    }

    GPD0CON &= ~(0xf << 0);
    GPD0CON |= (0x2 << 0);

    while (1) {
        play_music(music, len);
    }

    munmap((void *)gpio, 0x100);
    close(fd);

    return 0;
}

该程序使用了S5PV210的定时器和GPIO控制蜂鸣器，实现了一个简单的音乐播放器。程序中使用了set_pwm()函数来设置定时器和蜂鸣器的工作参数，使用delay_ms()函数来实现延时操作，使用play_music()函数来播放音乐。在main()函数中，不断调用play_music()函数来循环播放音乐。需要注意的是，该程序仅供参考，具体实现方式需要根据具体的硬件和应用场景进行调整和优化。