stm32f7xxx-disc_audio.c ファイル

STM32F769I-Discovery Audio Driver [詳解]

#include "sysconfig.h"
#include "device.h"
#include "interrupt.h"
#include "task/event.h"
#include "task/syscall.h"
#include "task/mutex.h"
#include "device/audio_ioctl.h"
#include "device/ts_ioctl.h"
#include "timer.h"
#include "tkprintf.h"
#include "tprintf.h"
#include "sysevent.h"
#include "dkprintf.h"

stm32f7xxx-disc_audio.c の依存先関係図:

[ソースコード]

マクロ定義
#define	MAX_AUDIOBUF   (1152*2*2*2)

関数
void	BSP_AUDIO_OUT_TransferComplete_CallBack (void)
void	BSP_AUDIO_OUT_HalfTransfer_CallBack (void)
void	BSP_AUDIO_OUT_Error_CallBack (void)
static void	inthdr_audio (unsigned int intnum, void *sp)
static int	audio_register (struct st_device *dev, char *param)
static void	lock_ts (void)
static void	unlock_ts (void)
static int	audio_init (int vol, int smprate)
static int	audio_open (struct st_device *dev)
static int	audio_close (struct st_device *dev)
static int	audio_write (struct st_device *dev, const void *data, unsigned int size)
static int	audio_ioctl (struct st_device *dev, unsigned int com, unsigned int arg, void *param)
static int	audio_select (struct st_device *dev, unsigned int timeout)

変数
static struct st_device *	ts_dev = 0
static unsigned char	audio_buf [MAX_AUDIOBUF]
static int	flg_buf_half = 0
static int	flg_play = 0
static int	flg_audio_start = 0
static int	volume = 30
static int	bufsize = MAX_AUDIOBUF
static int	flg_bs_chg = 0
static int	sampling_rate = I2S_AUDIOFREQ_48K
static struct st_mutex	audio_mutex
static struct st_event	tx_evq
SAI_HandleTypeDef	haudio_out_sai
const struct st_device	audio_device

詳解

STM32F769I-Discovery Audio Driver

日付

2017.02.11

著者

Takashi SHUDO

stm32f7xxx-disc_audio.c に定義があります。

変数詳解

audio_device

const struct st_device audio_device

初期値:

= {
        .name           = DEF_DEV_NAME_AUDIO,
        .explan         = "STM32F769I-Disc Audio Out",
        .register_dev   = audio_register,
        .mutex          = &audio_mutex,
        .open           = audio_open,
        .close          = audio_close,
        .write          = audio_write,
        .ioctl          = audio_ioctl,
        .select         = audio_select,
}

stm32f7xxx-disc_audio.c の 344 行目に定義があります。