Ryo Hagimoto / Mbed OS RZ_A2M_Mbed_samples_20201012

GR-MANGO sample using mbed-os library from my repository.

Dependencies:   mbed-http

sample_programs/sample_12_usb_func_audio_2.cpp@0:b4c1e32627f2, 2020-10-12 (annotated)

Committer:
RyoheiHagimoto
Date:
Mon Oct 12 02:25:49 2020 +0000
Revision:
0:b4c1e32627f2
replaced mbed-os library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RyoheiHagimoto 0:b4c1e32627f2 1 /*******************************************************************************
RyoheiHagimoto 0:b4c1e32627f2 2 * DISCLAIMER
RyoheiHagimoto 0:b4c1e32627f2 3 * This software is supplied by Renesas Electronics Corporation and is only
RyoheiHagimoto 0:b4c1e32627f2 4 * intended for use with Renesas products. No other uses are authorized. This
RyoheiHagimoto 0:b4c1e32627f2 5 * software is owned by Renesas Electronics Corporation and is protected under
RyoheiHagimoto 0:b4c1e32627f2 6 * all applicable laws, including copyright laws.
RyoheiHagimoto 0:b4c1e32627f2 7 * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
RyoheiHagimoto 0:b4c1e32627f2 8 * THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
RyoheiHagimoto 0:b4c1e32627f2 9 * LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
RyoheiHagimoto 0:b4c1e32627f2 10 * AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
RyoheiHagimoto 0:b4c1e32627f2 11 * TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
RyoheiHagimoto 0:b4c1e32627f2 12 * ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
RyoheiHagimoto 0:b4c1e32627f2 13 * FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
RyoheiHagimoto 0:b4c1e32627f2 14 * ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
RyoheiHagimoto 0:b4c1e32627f2 15 * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
RyoheiHagimoto 0:b4c1e32627f2 16 * Renesas reserves the right, without notice, to make changes to this software
RyoheiHagimoto 0:b4c1e32627f2 17 * and to discontinue the availability of this software. By using this software,
RyoheiHagimoto 0:b4c1e32627f2 18 * you agree to the additional terms and conditions found by accessing the
RyoheiHagimoto 0:b4c1e32627f2 19 * following link:
RyoheiHagimoto 0:b4c1e32627f2 20 * http://www.renesas.com/disclaimer
RyoheiHagimoto 0:b4c1e32627f2 21 *
RyoheiHagimoto 0:b4c1e32627f2 22 * Copyright (C) 2019 Renesas Electronics Corporation. All rights reserved.
RyoheiHagimoto 0:b4c1e32627f2 23 *******************************************************************************/
RyoheiHagimoto 0:b4c1e32627f2 24 #include "sample_select.h"
RyoheiHagimoto 0:b4c1e32627f2 25
RyoheiHagimoto 0:b4c1e32627f2 26 #if (SAMPLE_PROGRAM_NO == 12)
RyoheiHagimoto 0:b4c1e32627f2 27 // SAMPLE_PROGRAM_NO 12 : USBAudio and SSIF sample
RyoheiHagimoto 0:b4c1e32627f2 28 // Sound from PC will be output to SSIF. (speaker)
RyoheiHagimoto 0:b4c1e32627f2 29 // Sound from SSIF will be input to the PC. (microphone)
RyoheiHagimoto 0:b4c1e32627f2 30 // [Attention!] Delete the "OVERRIDE_CONSOLE_USBSERIAL" macro in "mbed_app.json" file if it is set.
RyoheiHagimoto 0:b4c1e32627f2 31
RyoheiHagimoto 0:b4c1e32627f2 32 #if defined(TARGET_SEMB1402) || defined(TARGET_RZ_A2M_SBEV)
RyoheiHagimoto 0:b4c1e32627f2 33 #error "Audio is not supported."
RyoheiHagimoto 0:b4c1e32627f2 34 #endif
RyoheiHagimoto 0:b4c1e32627f2 35
RyoheiHagimoto 0:b4c1e32627f2 36 #include "mbed.h"
RyoheiHagimoto 0:b4c1e32627f2 37 #include "USBAudio.h"
RyoheiHagimoto 0:b4c1e32627f2 38 #include "AUDIO_GRBoard.h"
RyoheiHagimoto 0:b4c1e32627f2 39
RyoheiHagimoto 0:b4c1e32627f2 40 #define AUDIO_OUT_BUFF_NUM (8)
RyoheiHagimoto 0:b4c1e32627f2 41 #define AUDIO_IN_BUFF_NUM (8)
RyoheiHagimoto 0:b4c1e32627f2 42 #define AUDIO_BUFF_SIZE (4096)
RyoheiHagimoto 0:b4c1e32627f2 43 AUDIO_GRBoard i2s_audio(0x80, AUDIO_OUT_BUFF_NUM - 1, AUDIO_IN_BUFF_NUM);
RyoheiHagimoto 0:b4c1e32627f2 44
RyoheiHagimoto 0:b4c1e32627f2 45 //32 bytes aligned! No cache memory
RyoheiHagimoto 0:b4c1e32627f2 46 static uint8_t audio_out_buff[AUDIO_OUT_BUFF_NUM][AUDIO_BUFF_SIZE] __attribute((section("NC_BSS"),aligned(32)));
RyoheiHagimoto 0:b4c1e32627f2 47 static uint8_t audio_in_buff[AUDIO_IN_BUFF_NUM][AUDIO_BUFF_SIZE] __attribute((section("NC_BSS"),aligned(32)));
RyoheiHagimoto 0:b4c1e32627f2 48
RyoheiHagimoto 0:b4c1e32627f2 49 Semaphore mic_in_sem(0);
RyoheiHagimoto 0:b4c1e32627f2 50
RyoheiHagimoto 0:b4c1e32627f2 51 static void callback_audio_in(void * p_data, int32_t result, void * p_app_data) {
RyoheiHagimoto 0:b4c1e32627f2 52 mic_in_sem.release();
RyoheiHagimoto 0:b4c1e32627f2 53 }
RyoheiHagimoto 0:b4c1e32627f2 54
RyoheiHagimoto 0:b4c1e32627f2 55 void mic_task(USBAudio * p_usb_audio) {
RyoheiHagimoto 0:b4c1e32627f2 56 rbsp_data_conf_t audio_in_cb = {&callback_audio_in, NULL};
RyoheiHagimoto 0:b4c1e32627f2 57 uint8_t * p_buf;
RyoheiHagimoto 0:b4c1e32627f2 58 int audio_in_idx = 0;
RyoheiHagimoto 0:b4c1e32627f2 59
RyoheiHagimoto 0:b4c1e32627f2 60 // Read buffer setting
RyoheiHagimoto 0:b4c1e32627f2 61 for (int i = 0; i < AUDIO_IN_BUFF_NUM; i++) {
RyoheiHagimoto 0:b4c1e32627f2 62 i2s_audio.read(audio_in_buff[i], AUDIO_BUFF_SIZE, &audio_in_cb);
RyoheiHagimoto 0:b4c1e32627f2 63 }
RyoheiHagimoto 0:b4c1e32627f2 64
RyoheiHagimoto 0:b4c1e32627f2 65 while (1) {
RyoheiHagimoto 0:b4c1e32627f2 66 mic_in_sem.acquire();
RyoheiHagimoto 0:b4c1e32627f2 67 p_buf = audio_in_buff[audio_in_idx++];
RyoheiHagimoto 0:b4c1e32627f2 68 if (audio_in_idx >= AUDIO_IN_BUFF_NUM) {
RyoheiHagimoto 0:b4c1e32627f2 69 audio_in_idx = 0;
RyoheiHagimoto 0:b4c1e32627f2 70 }
RyoheiHagimoto 0:b4c1e32627f2 71 if (i2s_audio.read(p_buf, AUDIO_BUFF_SIZE, &audio_in_cb) < 0) {
RyoheiHagimoto 0:b4c1e32627f2 72 memset(p_buf, 0, AUDIO_BUFF_SIZE);
RyoheiHagimoto 0:b4c1e32627f2 73 }
RyoheiHagimoto 0:b4c1e32627f2 74 p_usb_audio->write(p_buf, AUDIO_BUFF_SIZE);
RyoheiHagimoto 0:b4c1e32627f2 75 }
RyoheiHagimoto 0:b4c1e32627f2 76 }
RyoheiHagimoto 0:b4c1e32627f2 77
RyoheiHagimoto 0:b4c1e32627f2 78 int main() {
RyoheiHagimoto 0:b4c1e32627f2 79 USBAudio usb_audio(true, 44100, 2, 44100, 2);
RyoheiHagimoto 0:b4c1e32627f2 80 rbsp_data_conf_t audio_out_cb = {NULL, NULL};
RyoheiHagimoto 0:b4c1e32627f2 81 uint8_t * p_buf;
RyoheiHagimoto 0:b4c1e32627f2 82 int audio_out_idx = 0;
RyoheiHagimoto 0:b4c1e32627f2 83
RyoheiHagimoto 0:b4c1e32627f2 84 i2s_audio.power(); // For GR-PEACH and GR-LYCHEE
RyoheiHagimoto 0:b4c1e32627f2 85 i2s_audio.outputVolume(0.5, 0.5); // For GR-PEACH and GR-LYCHEE
RyoheiHagimoto 0:b4c1e32627f2 86 i2s_audio.micVolume(0.7); // For GR-PEACH and GR-LYCHEE
RyoheiHagimoto 0:b4c1e32627f2 87
RyoheiHagimoto 0:b4c1e32627f2 88 Thread micTask;
RyoheiHagimoto 0:b4c1e32627f2 89 micTask.start(callback(mic_task, &usb_audio));
RyoheiHagimoto 0:b4c1e32627f2 90
RyoheiHagimoto 0:b4c1e32627f2 91 while (1) {
RyoheiHagimoto 0:b4c1e32627f2 92 p_buf = audio_out_buff[audio_out_idx++];
RyoheiHagimoto 0:b4c1e32627f2 93 if (audio_out_idx >= AUDIO_OUT_BUFF_NUM) {
RyoheiHagimoto 0:b4c1e32627f2 94 audio_out_idx = 0;
RyoheiHagimoto 0:b4c1e32627f2 95 }
RyoheiHagimoto 0:b4c1e32627f2 96 if (!usb_audio.read(p_buf, AUDIO_BUFF_SIZE)) {
RyoheiHagimoto 0:b4c1e32627f2 97 memset(p_buf, 0, AUDIO_BUFF_SIZE);
RyoheiHagimoto 0:b4c1e32627f2 98 }
RyoheiHagimoto 0:b4c1e32627f2 99 i2s_audio.write(p_buf, AUDIO_BUFF_SIZE, &audio_out_cb);
RyoheiHagimoto 0:b4c1e32627f2 100 }
RyoheiHagimoto 0:b4c1e32627f2 101 }
RyoheiHagimoto 0:b4c1e32627f2 102
RyoheiHagimoto 0:b4c1e32627f2 103 #endif