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DAC external instead of null

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philippe44
2020-02-05 18:17:05 -08:00
parent 07b0d0cb6c
commit f9da2d2d0f
5 changed files with 5 additions and 5 deletions
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67
components/squeezelite/external/dac_external.c vendored Normal file
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/*
* Squeezelite for esp32
*
* (c) Sebastien 2019
* Philippe G. 2019, philippe_44@outlook.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <driver/i2s.h>
#include "config.h"
#include "adac.h"
static bool init(int i2c_port_num, int i2s_num, i2s_config_t *config);
static void deinit(void) { };
static void speaker(bool active) { };
static void headset(bool active) { } ;
static void volume(unsigned left, unsigned right) { };
static void power(adac_power_e mode) { };
struct adac_s dac_external = { init, deinit, power, speaker, headset, volume };
static bool init(int i2c_port_num, int i2s_num, i2s_config_t *config) {
#if !defined(CONFIG_SQUEEZEAMP) && !defined(CONFIG_A1S)
i2s_pin_config_t i2s_pin_config = (i2s_pin_config_t) { .bck_io_num = CONFIG_I2S_BCK_IO, .ws_io_num = CONFIG_I2S_WS_IO,
.data_out_num = CONFIG_I2S_DO_IO, .data_in_num = -1 //Not used };
char *nvs_item = config_alloc_get(NVS_TYPE_STR, "dac_config");
if (nvs_item) {
if ((p = strcasestr(nvs_item, "bck")) != NULL) i2s_pin_config.bck_io_num = atoi(strchr(p, '=') + 1);
if ((p = strcasestr(nvs_item, "ws")) != NULL) i2s_pin_config.ws_io_num = atoi(strchr(p, '=') + 1);
if ((p = strcasestr(nvs_item, "do")) != NULL) i2s_pin_config.data_out_num = atoi(strchr(p, '=') + 1);
free(nvs_item);
}
if (i2s_pin_config.bck_io_num != -1 && i2s_pin_config.ws_io_num != -1 && i2s_pin_config.data_out_num != -1) {
i2s_driver_install(i2s_num, i2s_config, 0, NULL);
i2s_set_pin(i2s_num, &i2s_pin_config);
ESP_LOGI(TAG, "DAC using I2S bck:%u, ws:%u, do:%u", i2s_pin_config.bck_io_num, i2s_pin_config.ws_io_num, i2s_pin_config.data_out_num);
return true;
} else {
LOG_WARN("Cannot initialize I2S for SPDIF bck:%d ws:%d do:%d", i2s_pin_config.bck_io_num,
i2s_pin_config.ws_io_num,
i2s_pin_config.data_out_num);
return false;
}
#else
return true;
#endif
}