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auto-detect DAC

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This commit is contained in:
philippe44
2020-02-09 14:22:35 -08:00
parent 90d52dabaf
commit c4b0168370
7 changed files with 77 additions and 36 deletions
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26
components/squeezelite/tas57xx/dac_57xx.c
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@@ -78,15 +78,8 @@ static int tas57_detect(void);
* init
*/
static bool init(int i2c_port_num, int i2s_num, i2s_config_t *i2s_config) {
LOG_INFO("Initializing TAS57xx ");
i2c_port = i2c_port_num;
// init volume & mute
gpio_pad_select_gpio(VOLUME_GPIO);
gpio_set_direction(VOLUME_GPIO, GPIO_MODE_OUTPUT);
gpio_set_level(VOLUME_GPIO, 0);
// configure i2c
i2c_config_t i2c_config = {
.mode = I2C_MODE_MASTER,
@@ -96,13 +89,26 @@ static bool init(int i2c_port_num, int i2s_num, i2s_config_t *i2s_config) {
.scl_pullup_en = GPIO_PULLUP_ENABLE,
.master.clk_speed = 100000,
};
i2c_param_config(i2c_port, &i2c_config);
i2c_driver_install(i2c_port, I2C_MODE_MASTER, false, false, false);
LOG_INFO("DAC using I2C sda:%u, scl:%u", i2c_config.sda_io_num, i2c_config.scl_io_num);
// find which TAS we are using
// find which TAS we are using (if any)
tas57_addr = tas57_detect();
if (!tas57_addr) {
LOG_WARN("No TAS57xx detected");
i2c_driver_delete(i2c_port);
return 0;
}
LOG_INFO("TAS57xx DAC using I2C sda:%u, scl:%u", i2c_config.sda_io_num, i2c_config.scl_io_num);
// init volume & mute
gpio_pad_select_gpio(VOLUME_GPIO);
gpio_set_direction(VOLUME_GPIO, GPIO_MODE_OUTPUT);
gpio_set_level(VOLUME_GPIO, 0);
i2c_cmd_handle_t i2c_cmd = i2c_cmd_link_create();
for (int i = 0; tas57xx_init_sequence[i].reg != 0xff; i++) {