mirror of
https://github.com/sle118/squeezelite-esp32.git
synced 2025-12-08 04:27:12 +03:00
porting master changes
There is a divergence in accessors.c that I've not resolved
This commit is contained in:
Philippe G
177
components/squeezelite/external/dac_external.c
vendored
177
components/squeezelite/external/dac_external.c
vendored
@@ -12,46 +12,163 @@
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#include <freertos/FreeRTOS.h>
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#include <freertos/task.h>
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#include <driver/i2s.h>
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#include "driver/i2c.h"
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#include "esp_log.h"
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#include "cJSON.h"
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#include "platform_config.h"
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#include "adac.h"
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static bool init(int i2c_port_num, int i2s_num, i2s_config_t *config);
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static void deinit(void) { };
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static void speaker(bool active) { };
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static void headset(bool active) { } ;
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static void volume(unsigned left, unsigned right) { };
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static void power(adac_power_e mode) { };
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static const char TAG[] = "DAC external";
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struct adac_s dac_external = { init, deinit, power, speaker, headset, volume };
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static void deinit(void) { }
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static void speaker(bool active) { }
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static void headset(bool active) { }
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static bool volume(unsigned left, unsigned right) { return false; }
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static void power(adac_power_e mode);
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static bool init(char *config, int i2c_port_num);
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static char TAG[] = "DAC external";
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static bool i2c_json_execute(char *set);
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static esp_err_t i2c_write_reg(uint8_t reg, uint8_t val);
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static uint8_t i2c_read_reg(uint8_t reg);
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static bool init(int i2c_port_num, int i2s_num, i2s_config_t *config) {
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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,
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.data_out_num = CONFIG_I2S_DO_IO, .data_in_num = CONFIG_I2S_DI_IO };
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char *nvs_item = config_alloc_get(NVS_TYPE_STR, "dac_config");
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const struct adac_s dac_external = { "i2s", init, deinit, power, speaker, headset, volume };
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static int i2c_port, i2c_addr;
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static cJSON *i2c_json;
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/****************************************************************************************
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* init
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*/
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static bool init(char *config, int i2c_port_num) {
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char *p;
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i2c_port = i2c_port_num;
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if (nvs_item) {
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char *p;
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if ((p = strcasestr(nvs_item, "bck")) != NULL) i2s_pin_config.bck_io_num = atoi(strchr(p, '=') + 1);
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if ((p = strcasestr(nvs_item, "ws")) != NULL) i2s_pin_config.ws_io_num = atoi(strchr(p, '=') + 1);
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if ((p = strcasestr(nvs_item, "do")) != NULL) i2s_pin_config.data_out_num = atoi(strchr(p, '=') + 1);
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free(nvs_item);
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}
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// configure i2c
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i2c_config_t i2c_config = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = -1,
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.sda_pullup_en = GPIO_PULLUP_ENABLE,
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.scl_io_num = -1,
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.scl_pullup_en = GPIO_PULLUP_ENABLE,
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.master.clk_speed = 250000,
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};
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if ((p = strcasestr(config, "i2c")) != NULL) i2c_addr = atoi(strchr(p, '=') + 1);
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if ((p = strcasestr(config, "sda")) != NULL) i2c_config.sda_io_num = atoi(strchr(p, '=') + 1);
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if ((p = strcasestr(config, "scl")) != NULL) i2c_config.scl_io_num = atoi(strchr(p, '=') + 1);
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p = config_alloc_get_str("dac_controlset", CONFIG_DAC_CONTROLSET, NULL);
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i2c_json = cJSON_Parse(p);
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if (i2s_pin_config.bck_io_num != -1 && i2s_pin_config.ws_io_num != -1 && i2s_pin_config.data_out_num != -1) {
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i2s_driver_install(i2s_num, config, 0, NULL);
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i2s_set_pin(i2s_num, &i2s_pin_config);
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ESP_LOGI(TAG, "External 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);
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if (!i2c_addr || !i2c_json || i2c_config.sda_io_num == -1 || i2c_config.scl_io_num == -1) {
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if (p) free(p);
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ESP_LOGW(TAG, "No i2c controlset found");
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return true;
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} else {
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ESP_LOGI(TAG, "Cannot initialize I2S for DAC bck:%d ws:%d do:%d", i2s_pin_config.bck_io_num,
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i2s_pin_config.ws_io_num,
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i2s_pin_config.data_out_num);
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}
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ESP_LOGI(TAG, "DAC uses I2C @%d with sda:%d, scl:%d", i2c_addr, i2c_config.sda_io_num, i2c_config.scl_io_num);
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// we have an I2C configured
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i2c_param_config(i2c_port, &i2c_config);
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i2c_driver_install(i2c_port, I2C_MODE_MASTER, false, false, false);
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if (!i2c_json_execute("init")) {
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ESP_LOGE(TAG, "could not intialize DAC");
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return false;
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}
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}
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return true;
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}
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/****************************************************************************************
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* power
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*/
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static void power(adac_power_e mode) {
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if (mode == ADAC_STANDBY || mode == ADAC_OFF) i2c_json_execute("poweroff");
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else i2c_json_execute("poweron");
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}
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/****************************************************************************************
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*
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*/
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bool i2c_json_execute(char *set) {
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cJSON *json_set = cJSON_GetObjectItemCaseSensitive(i2c_json, set);
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cJSON *item;
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if (!json_set) return true;
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cJSON_ArrayForEach(item, json_set)
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{
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cJSON *reg = cJSON_GetObjectItemCaseSensitive(item, "reg");
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cJSON *val = cJSON_GetObjectItemCaseSensitive(item, "val");
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cJSON *mode = cJSON_GetObjectItemCaseSensitive(item, "mode");
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if (!reg || !val) continue;
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if (!mode) {
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i2c_write_reg(reg->valueint, val->valueint);
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} else if (!strcasecmp(mode->valuestring, "or")) {
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uint8_t data = i2c_read_reg(reg->valueint);
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data |= (uint8_t) val->valueint;
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i2c_write_reg(reg->valueint, data);
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} else if (!strcasecmp(mode->valuestring, "and")) {
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uint8_t data = i2c_read_reg(reg->valueint);
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data &= (uint8_t) val->valueint;
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i2c_write_reg(reg->valueint, data);
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}
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}
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return true;
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}
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/****************************************************************************************
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*
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*/
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static esp_err_t i2c_write_reg(uint8_t reg, uint8_t val) {
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esp_err_t ret;
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i2c_cmd_handle_t cmd = i2c_cmd_link_create();
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, i2c_addr | I2C_MASTER_WRITE, I2C_MASTER_NACK);
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i2c_master_write_byte(cmd, reg, I2C_MASTER_NACK);
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i2c_master_write_byte(cmd, val, I2C_MASTER_NACK);
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i2c_master_stop(cmd);
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ret = i2c_master_cmd_begin(i2c_port, cmd, 1000 / portTICK_RATE_MS);
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i2c_cmd_link_delete(cmd);
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if (ret != ESP_OK) {
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ESP_LOGW(TAG, "I2C write failed");
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}
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return ret;
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}
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/****************************************************************************************
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*
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*/
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static uint8_t i2c_read_reg(uint8_t reg) {
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esp_err_t ret;
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uint8_t data = 0;
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i2c_cmd_handle_t cmd = i2c_cmd_link_create();
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, i2c_addr | I2C_MASTER_WRITE, I2C_MASTER_NACK);
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i2c_master_write_byte(cmd, reg, I2C_MASTER_NACK);
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, i2c_addr | I2C_MASTER_READ, I2C_MASTER_NACK);
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i2c_master_read_byte(cmd, &data, I2C_MASTER_NACK);
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i2c_master_stop(cmd);
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ret = i2c_master_cmd_begin(i2c_port, cmd, 1000 / portTICK_RATE_MS);
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i2c_cmd_link_delete(cmd);
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if (ret != ESP_OK) {
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ESP_LOGW(TAG, "I2C read failed");
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}
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return data;
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}
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