/** * @brief Manages Audio process. * @param None * @retval Audio error */ AUDIO_ErrorTypeDef AUDIO_REC_Process(void) { uint32_t byteswritten = 0; AUDIO_ErrorTypeDef audio_error = AUDIO_ERROR_NONE; uint32_t elapsed_time; static uint32_t prev_elapsed_time = 0xFFFFFFFF; uint8_t str[10]; switch(AudioState) { case AUDIO_STATE_RECORD: /* MAX Recording time reached, so stop audio interface and close file */ if(BufferCtl.fptr >= REC_SAMPLE_LENGTH) { AudioState = AUDIO_STATE_STOP; break; } /* Check if there are Data to write in Usb Key */ if(BufferCtl.wr_state == BUFFER_FULL) { /* write buffer in file */ if(f_write(&WavFile, (uint8_t*)(BufferCtl.pcm_buff + BufferCtl.offset), AUDIO_IN_PCM_BUFFER_SIZE, (void*)&byteswritten) != FR_OK) { BSP_LCD_SetTextColor(LCD_COLOR_RED); BSP_LCD_DisplayStringAtLine(16, (uint8_t *)"RECORD FAIL"); return AUDIO_ERROR_IO; } BufferCtl.fptr += byteswritten; BufferCtl.wr_state = BUFFER_EMPTY; } /* Display elapsed time */ elapsed_time = BufferCtl.fptr / (DEFAULT_AUDIO_IN_FREQ * DEFAULT_AUDIO_IN_CHANNEL_NBR * 2); if(prev_elapsed_time != elapsed_time) { prev_elapsed_time = elapsed_time; sprintf((char *)str, "[%02d:%02d]", (int)(elapsed_time /60), (int)(elapsed_time%60)); BSP_LCD_SetTextColor(LCD_COLOR_CYAN); BSP_LCD_DisplayStringAt(263, LINE(8), str, LEFT_MODE); sprintf((char *)str, "%4d KB", (int)((int32_t)BufferCtl.fptr/1024)); BSP_LCD_DisplayStringAt(83, LINE(8), str, LEFT_MODE); } break; case AUDIO_STATE_STOP: /* Stop recorder */ BSP_AUDIO_IN_Stop(); /* Create a new file system */ if(f_lseek(&WavFile, 0) == FR_OK) { /* Update the wav file header save it into wav file */ WavProcess_HeaderUpdate(pHeaderBuff, &WaveFormat); if(f_write(&WavFile, pHeaderBuff, sizeof(WAVE_FormatTypeDef), (void*)&byteswritten) == FR_OK) { audio_error = AUDIO_ERROR_EOF; } else { audio_error = AUDIO_ERROR_IO; BSP_LCD_SetTextColor(LCD_COLOR_RED); BSP_LCD_DisplayStringAtLine(16, (uint8_t *)"RECORD FAIL"); } } else { BSP_LCD_SetTextColor(LCD_COLOR_RED); BSP_LCD_DisplayStringAtLine(16, (uint8_t *)"RECORD FAIL"); audio_error = AUDIO_ERROR_IO; } AudioState = AUDIO_STATE_IDLE; /* Close file */ f_close(&WavFile); break; case AUDIO_STATE_PAUSE: BSP_LCD_DisplayStringAt(250, LINE(14), (uint8_t *)" [PAUSE] ", LEFT_MODE); BSP_AUDIO_IN_Pause(); AudioState = AUDIO_STATE_WAIT; break; case AUDIO_STATE_RESUME: BSP_LCD_DisplayStringAt(250, LINE(14), (uint8_t *)" [RECORD] ", LEFT_MODE); BSP_AUDIO_IN_Resume(); AudioState = AUDIO_STATE_RECORD; break; case AUDIO_STATE_VOLUME_UP: if(AudioInVolume <= 90) { AudioInVolume += 10; } BSP_AUDIO_IN_SetVolume(AudioInVolume); AudioState = AUDIO_STATE_RECORD; break; case AUDIO_STATE_VOLUME_DOWN: if(AudioInVolume >= 10) { AudioInVolume -= 10; } BSP_AUDIO_IN_SetVolume(AudioInVolume); AudioState = AUDIO_STATE_RECORD; break; case AUDIO_STATE_NEXT: case AUDIO_STATE_PREVIOUS: AudioState = AUDIO_STATE_RECORD; break; case AUDIO_STATE_WAIT: case AUDIO_STATE_IDLE: case AUDIO_STATE_INIT: default: /* Do Nothing */ break; } return audio_error; }
/** * @brief Manages Audio process. * @param None * @retval Audio error */ AUDIO_ErrorTypeDef AUDIO_REC_Process(void) { uint32_t byteswritten = 0; AUDIO_ErrorTypeDef audio_error = AUDIO_ERROR_NONE; uint32_t elapsed_time; static uint32_t prev_elapsed_time = 0xFFFFFFFF; uint8_t str[10]; static TS_StateTypeDef TS_State={0}; switch(AudioState) { case AUDIO_STATE_PRERECORD: if(TS_State.touchDetected == 1) /* If previous touch has not been released, we don't proceed any touch command */ { BSP_TS_GetState(&TS_State); } else { BSP_TS_GetState(&TS_State); if(TS_State.touchDetected == 1) { if ((TS_State.touchX[0] > TOUCH_STOP_XMIN) && (TS_State.touchX[0] < TOUCH_STOP_XMAX) && (TS_State.touchY[0] > TOUCH_STOP_YMIN) && (TS_State.touchY[0] < TOUCH_STOP_YMAX)) { AudioState = AUDIO_STATE_STOP; } else if ((TS_State.touchX[0] > TOUCH_RECORD_XMIN) && (TS_State.touchX[0] < TOUCH_RECORD_XMAX) && (TS_State.touchY[0] > TOUCH_RECORD_YMIN) && (TS_State.touchY[0] < TOUCH_RECORD_YMAX)) { display_update = 1; AudioState = AUDIO_STATE_RECORD; } else if((TS_State.touchX[0] > TOUCH_VOL_MINUS_XMIN) && (TS_State.touchX[0] < TOUCH_VOL_MINUS_XMAX) && (TS_State.touchY[0] > TOUCH_VOL_MINUS_YMIN) && (TS_State.touchY[0] < TOUCH_VOL_MINUS_YMAX)) { AudioState = AUDIO_STATE_VOLUME_DOWN; if(uwVolume >= 5) { uwVolume -= 5; } } else if((TS_State.touchX[0] > TOUCH_VOL_PLUS_XMIN) && (TS_State.touchX[0] < TOUCH_VOL_PLUS_XMAX) && (TS_State.touchY[0] > TOUCH_VOL_PLUS_YMIN) && (TS_State.touchY[0] < TOUCH_VOL_PLUS_YMAX)) { AudioState = AUDIO_STATE_VOLUME_UP; if(uwVolume <= 95) { uwVolume += 5; } } if ((AudioState == AUDIO_STATE_VOLUME_DOWN) || (AudioState == AUDIO_STATE_VOLUME_UP)) { sprintf((char *)str, "Volume : %d ", (int)uwVolume); BSP_LCD_ClearStringLine(7); BSP_LCD_DisplayStringAtLine(7, str); BSP_AUDIO_IN_SetVolume(uwVolume); AudioState = AUDIO_STATE_PRERECORD; } } else { AudioState = AUDIO_STATE_PRERECORD; } } break; case AUDIO_STATE_RECORD: if (display_update) { BSP_LCD_SetTextColor(LCD_COLOR_RED); /* Display red record circle */ BSP_LCD_FillCircle((TOUCH_RECORD_XMAX+TOUCH_RECORD_XMIN)/2, (TOUCH_RECORD_YMAX+TOUCH_RECORD_YMIN)/2, (TOUCH_RECORD_XMAX-TOUCH_RECORD_XMIN)/2); BSP_LCD_SetFont(&LCD_LOG_TEXT_FONT); BSP_LCD_SetTextColor(LCD_COLOR_YELLOW); BSP_LCD_DisplayStringAt(247, LINE(6), (uint8_t *)" [RECORD]", LEFT_MODE); display_update = 0; } if(TS_State.touchDetected == 1) /* If previous touch has not been released, we don't proceed any touch command */ { BSP_TS_GetState(&TS_State); } else { BSP_TS_GetState(&TS_State); if(TS_State.touchDetected == 1) { if ((TS_State.touchX[0] > TOUCH_STOP_XMIN) && (TS_State.touchX[0] < TOUCH_STOP_XMAX) && (TS_State.touchY[0] > TOUCH_STOP_YMIN) && (TS_State.touchY[0] < TOUCH_STOP_YMAX)) { AudioState = AUDIO_STATE_STOP; } else if ((TS_State.touchX[0] > TOUCH_PAUSE_XMIN) && (TS_State.touchX[0] < TOUCH_PAUSE_XMAX) && (TS_State.touchY[0] > TOUCH_PAUSE_YMIN) && (TS_State.touchY[0] < TOUCH_PAUSE_YMAX)) { AudioState = AUDIO_STATE_PAUSE; } else if((TS_State.touchX[0] > TOUCH_VOL_MINUS_XMIN) && (TS_State.touchX[0] < TOUCH_VOL_MINUS_XMAX) && (TS_State.touchY[0] > TOUCH_VOL_MINUS_YMIN) && (TS_State.touchY[0] < TOUCH_VOL_MINUS_YMAX)) { AudioState = AUDIO_STATE_VOLUME_DOWN; } else if((TS_State.touchX[0] > TOUCH_VOL_PLUS_XMIN) && (TS_State.touchX[0] < TOUCH_VOL_PLUS_XMAX) && (TS_State.touchY[0] > TOUCH_VOL_PLUS_YMIN) && (TS_State.touchY[0] < TOUCH_VOL_PLUS_YMAX)) { AudioState = AUDIO_STATE_VOLUME_UP; } } } /* MAX Recording time reached, so stop audio interface and close file */ if(BufferCtl.fptr >= REC_SAMPLE_LENGTH) { display_update = 1; AudioState = AUDIO_STATE_STOP; break; } /* Check if there are Data to write to USB Key */ if(BufferCtl.wr_state == BUFFER_FULL) { /* write buffer in file */ if(f_write(&WavFile, (uint8_t*)(BufferCtl.pcm_buff + BufferCtl.offset), AUDIO_IN_PCM_BUFFER_SIZE, (void*)&byteswritten) != FR_OK) { BSP_LCD_SetTextColor(LCD_COLOR_RED); BSP_LCD_DisplayStringAtLine(14, (uint8_t *)"RECORD FAIL"); return AUDIO_ERROR_IO; } BufferCtl.fptr += byteswritten; BufferCtl.wr_state = BUFFER_EMPTY; } /* Display elapsed time */ elapsed_time = BufferCtl.fptr / (DEFAULT_AUDIO_IN_FREQ * DEFAULT_AUDIO_IN_CHANNEL_NBR * 2); if(prev_elapsed_time != elapsed_time) { prev_elapsed_time = elapsed_time; sprintf((char *)str, "[%02d:%02d]", (int)(elapsed_time /60), (int)(elapsed_time%60)); BSP_LCD_SetTextColor(LCD_COLOR_YELLOW); BSP_LCD_DisplayStringAt(263, LINE(8), str, LEFT_MODE); sprintf((char *)str, "%4d KB", (int)((int32_t)BufferCtl.fptr/1024)); BSP_LCD_DisplayStringAt(83, LINE(8), str, LEFT_MODE); } break; case AUDIO_STATE_STOP: /* Stop recorder */ BSP_AUDIO_IN_Stop(); BSP_LCD_SetTextColor(LCD_COLOR_CYAN); /* Display blue cyan record circle */ BSP_LCD_FillCircle((TOUCH_RECORD_XMAX+TOUCH_RECORD_XMIN)/2, (TOUCH_RECORD_YMAX+TOUCH_RECORD_YMIN)/2, (TOUCH_RECORD_XMAX-TOUCH_RECORD_XMIN)/2); BSP_LCD_SetTextColor(LCD_COLOR_RED); BSP_LCD_FillRect(TOUCH_STOP_XMIN, TOUCH_STOP_YMIN , /* Stop rectangle */ TOUCH_STOP_XMAX - TOUCH_STOP_XMIN, TOUCH_STOP_YMAX - TOUCH_STOP_YMIN); BSP_LCD_SetTextColor(LCD_COLOR_CYAN); display_update = 1; HAL_Delay(150); if(f_lseek(&WavFile, 0) == FR_OK) { /* Update the wav file header save it into wav file */ WavProcess_HeaderUpdate(pHeaderBuff, &WaveFormat); if(f_write(&WavFile, pHeaderBuff, sizeof(WAVE_FormatTypeDef), (void*)&byteswritten) == FR_OK) { audio_error = AUDIO_ERROR_EOF; } else { audio_error = AUDIO_ERROR_IO; BSP_LCD_SetTextColor(LCD_COLOR_RED); BSP_LCD_DisplayStringAtLine(14, (uint8_t *)"RECORD FAIL"); } } else { BSP_LCD_SetTextColor(LCD_COLOR_RED); BSP_LCD_DisplayStringAtLine(14, (uint8_t *)"RECORD FAIL"); audio_error = AUDIO_ERROR_IO; } AudioState = AUDIO_STATE_IDLE; /* Close file */ f_close(&WavFile); break; case AUDIO_STATE_PAUSE: BSP_LCD_SetTextColor(LCD_COLOR_RED); /* Displays red pause rectangles */ BSP_LCD_FillRect(TOUCH_PAUSE_XMIN, TOUCH_PAUSE_YMIN , 15, TOUCH_PAUSE_YMAX - TOUCH_PAUSE_YMIN); BSP_LCD_FillRect(TOUCH_PAUSE_XMIN + 20, TOUCH_PAUSE_YMIN, 15, TOUCH_PAUSE_YMAX - TOUCH_PAUSE_YMIN); BSP_LCD_SetTextColor(LCD_COLOR_CYAN); /* Display blue cyan record circle */ BSP_LCD_FillCircle((TOUCH_RECORD_XMAX+TOUCH_RECORD_XMIN)/2, (TOUCH_RECORD_YMAX+TOUCH_RECORD_YMIN)/2, (TOUCH_RECORD_XMAX-TOUCH_RECORD_XMIN)/2); BSP_LCD_SetTextColor(LCD_COLOR_YELLOW); BSP_LCD_DisplayStringAt(247, LINE(6), (uint8_t *)" [PAUSE] ", LEFT_MODE); BSP_AUDIO_IN_Pause(); AudioState = AUDIO_STATE_WAIT; break; case AUDIO_STATE_RESUME: BSP_LCD_SetTextColor(LCD_COLOR_CYAN); /* Displays blue cyan pause rectangles */ BSP_LCD_FillRect(TOUCH_PAUSE_XMIN, TOUCH_PAUSE_YMIN , 15, TOUCH_PAUSE_YMAX - TOUCH_PAUSE_YMIN); BSP_LCD_FillRect(TOUCH_PAUSE_XMIN + 20, TOUCH_PAUSE_YMIN, 15, TOUCH_PAUSE_YMAX - TOUCH_PAUSE_YMIN); BSP_LCD_SetTextColor(LCD_COLOR_RED); /* Display red record circle */ BSP_LCD_FillCircle((TOUCH_RECORD_XMAX+TOUCH_RECORD_XMIN)/2, (TOUCH_RECORD_YMAX+TOUCH_RECORD_YMIN)/2, (TOUCH_RECORD_XMAX-TOUCH_RECORD_XMIN)/2); BSP_LCD_SetTextColor(LCD_COLOR_YELLOW); BSP_LCD_DisplayStringAt(247, LINE(6), (uint8_t *)" [RECORD]", LEFT_MODE); BSP_AUDIO_IN_Resume(); AudioState = AUDIO_STATE_RECORD; break; case AUDIO_STATE_VOLUME_UP: if(uwVolume <= 95) { uwVolume += 5; } sprintf((char *)str, "Volume : %d ", (int)uwVolume); BSP_LCD_SetTextColor(LCD_COLOR_YELLOW); BSP_LCD_ClearStringLine(7); BSP_LCD_DisplayStringAtLine(7, str); BSP_AUDIO_IN_SetVolume(uwVolume); AudioState = AUDIO_STATE_RECORD; break; case AUDIO_STATE_VOLUME_DOWN: if(uwVolume >= 5) { uwVolume -= 5; } sprintf((char *)str, "Volume : %d ", (int)uwVolume); BSP_LCD_SetTextColor(LCD_COLOR_YELLOW); BSP_LCD_ClearStringLine(7); BSP_LCD_DisplayStringAtLine(7, str); BSP_AUDIO_IN_SetVolume(uwVolume); AudioState = AUDIO_STATE_RECORD; break; case AUDIO_STATE_NEXT: case AUDIO_STATE_PREVIOUS: AudioState = AUDIO_STATE_RECORD; break; case AUDIO_STATE_WAIT: if(TS_State.touchDetected == 1) /* If previous touch has not been released, we don't proceed any touch command */ { BSP_TS_GetState(&TS_State); } else { BSP_TS_GetState(&TS_State); if(TS_State.touchDetected == 1) { if ((TS_State.touchX[0] > TOUCH_RECORD_XMIN) && (TS_State.touchX[0] < TOUCH_RECORD_XMAX) && (TS_State.touchY[0] > TOUCH_RECORD_YMIN) && (TS_State.touchY[0] < TOUCH_RECORD_YMAX)) { AudioState = AUDIO_STATE_RESUME; } else if ((TS_State.touchX[0] > TOUCH_PAUSE_XMIN) && (TS_State.touchX[0] < TOUCH_PAUSE_XMAX) && (TS_State.touchY[0] > TOUCH_PAUSE_YMIN) && (TS_State.touchY[0] < TOUCH_PAUSE_YMAX)) { AudioState = AUDIO_STATE_RESUME; } } } case AUDIO_STATE_IDLE: case AUDIO_STATE_INIT: default: /* Do Nothing */ break; } return audio_error; }