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- #include <finsh.h>
- #include <dfs_posix.h>
- #include "stm32f10x.h"
- rt_uint32_t wav_length;
- rt_uint8_t* wav_buffer;
- #define WAV_MP_NUM 2
- #define WAV_MP_BUFSZ (1024 * 1)
- #define STATIC_MEMPOOL
- #ifdef STATIC_MEMPOOL
- static rt_uint8_t mempool[(WAV_MP_BUFSZ + 4)* WAV_MP_NUM]; // 5k x 2
- static struct rt_mempool _mp;
- #endif
- static rt_mp_t mp;
- static rt_err_t wav_tx_done(rt_device_t dev, void *buffer)
- {
- /* release memory block to memory pool */
- rt_mp_free(buffer);
- return RT_EOK;
- }
- void wav(char* filename)
- {
- int fd;
- #ifdef STATIC_MEMPOOL
- rt_mp_init(&_mp, "wav", &mempool[0], sizeof(mempool), WAV_MP_BUFSZ);
- mp = &_mp;
- #else
- mp = rt_mp_create("wav", WAV_MP_NUM, WAV_MP_BUFSZ);
- #endif
- fd = open(filename, O_RDONLY, 0);
- if (fd >= 0)
- {
- rt_uint8_t* buf;
- rt_size_t len;
- rt_device_t device;
- /* open audio device and set tx done call back */
- device = rt_device_find("snd");
- rt_device_set_tx_complete(device, wav_tx_done);
- rt_device_open(device, RT_DEVICE_OFLAG_WRONLY);
- do
- {
- buf = rt_mp_alloc(mp, RT_WAITING_FOREVER);
- len = read(fd, (char*)buf, WAV_MP_BUFSZ);
- if (len > 0) rt_device_write(device, 0, buf, len);
- } while (len != 0);
- /* close device and file */
- rt_device_close(device);
- close(fd);
- /* delete memory pool */
- #ifdef STATIC_MEMPOOL
- rt_mp_detach(mp);
- #else
- rt_mp_delete(mp);
- #endif
- }
- }
- FINSH_FUNCTION_EXPORT(wav, wav test)
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