72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
#include <finsh.h>
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#include <dfs_posix.h>
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#include "stm32f10x_lib.h"
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rt_uint32_t wav_length;
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rt_uint8_t* wav_buffer;
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#define WAV_MP_NUM 2
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#define WAV_MP_BUFSZ (1024 * 1)
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#define STATIC_MEMPOOL
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#ifdef STATIC_MEMPOOL
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static rt_uint8_t mempool[(WAV_MP_BUFSZ + 4)* WAV_MP_NUM]; // 5k x 2
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static struct rt_mempool _mp;
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#endif
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static rt_mp_t mp;
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static rt_err_t wav_tx_done(rt_device_t dev, void *buffer)
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{
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/* release memory block to memory pool */
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rt_mp_free(buffer);
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return RT_EOK;
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}
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void wav(char* filename)
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{
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int fd;
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#ifdef STATIC_MEMPOOL
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rt_mp_init(&_mp, "wav", &mempool[0], sizeof(mempool), WAV_MP_BUFSZ);
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mp = &_mp;
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#else
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mp = rt_mp_create("wav", WAV_MP_NUM, WAV_MP_BUFSZ);
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#endif
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fd = open(filename, O_RDONLY, 0);
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if (fd >= 0)
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{
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rt_uint8_t* buf;
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rt_size_t len;
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rt_device_t device;
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/* open audio device and set tx done call back */
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device = rt_device_find("snd");
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rt_device_set_tx_complete(device, wav_tx_done);
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rt_device_open(device, RT_DEVICE_OFLAG_WRONLY);
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// buf = rt_mp_alloc(mp, RT_WAITING_FOREVER);
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// len = read(fd, (char*)buf, WAV_MP_BUFSZ);
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do {
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buf = rt_mp_alloc(mp, RT_WAITING_FOREVER);
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rt_kprintf("read file");
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len = read(fd, (char*)buf, WAV_MP_BUFSZ);
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rt_kprintf("...done!\n");
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if (len > 0) rt_device_write(device, 0, buf, len);
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} while (len != 0);
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/* close device and file */
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rt_device_close(device);
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close(fd);
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/* delete memory pool */
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#ifdef STATIC_MEMPOOL
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rt_mp_detach(mp);
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#else
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rt_mp_delete(mp);
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#endif
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}
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}
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FINSH_FUNCTION_EXPORT(wav, wav test)
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