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manual handling of analogue front end for power optimization - release

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philippe44
2019-12-07 04:11:51 -08:00
parent 7808c08874
commit 17a063592f
1 changed files with 24 additions and 9 deletions
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33
components/squeezelite/output_i2s.c
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@@ -162,6 +162,11 @@ static void spdif_convert(ISAMPLE_T *src, size_t frames, u32_t *dst, size_t *cou
#define TAS575x 0x98
#define TAS578x 0x90
static struct {
float sum, avg;
u16_t count;
} battery;
struct tas57xx_cmd_s {
u8_t reg;
u8_t value;
@@ -245,9 +250,6 @@ void output_init_i2s(log_level level, char *device, unsigned output_buf_size, ch
if (ret != ESP_OK) {
LOG_ERROR("could not intialize TAS57xx %d", ret);
}
// activate analogue output if needed
if (!jack_mutes_amp) dac_cmd(DAC_ANALOGUE_ON);
#endif
#ifdef CONFIG_I2S_BITS_PER_CHANNEL
@@ -378,7 +380,6 @@ void output_close_i2s(void) {
*/
bool output_volume_i2s(unsigned left, unsigned right) {
#ifdef TAS57xx
if (!spdif) {
LOG_INFO("TAS57xx volume (L:%u R:%u)", left, right);
gpio_set_level(VOLUME_GPIO, left || right);
@@ -387,7 +388,6 @@ bool output_volume_i2s(unsigned left, unsigned right) {
return false;
}
/****************************************************************************************
* Write frames to the output buffer
*/
@@ -472,8 +472,17 @@ static void *output_thread_i2s() {
if (state != output.state) {
LOG_INFO("Output state is %d", output.state);
if (output.state == OUTPUT_OFF) led_blink(LED_GREEN, 100, 2500);
else if (output.state == OUTPUT_STOPPED) led_blink(LED_GREEN, 200, 1000);
else if (output.state == OUTPUT_RUNNING) led_on(LED_GREEN);
else if (output.state == OUTPUT_STOPPED) {
#ifdef TAS57xx
dac_cmd(DAC_ANALOGUE_OFF);
#endif
led_blink(LED_GREEN, 200, 1000);
} else if (output.state == OUTPUT_RUNNING) {
#ifdef TAS57xx
if (!jack_mutes_amp || (jack_mutes_amp && jack_status)) dac_cmd(DAC_ANALOGUE_ON);
#endif
led_on(LED_GREEN);
}
}
state = output.state;
@@ -574,11 +583,17 @@ static void *output_thread_i2s() {
* Stats output thread
*/
static void *output_thread_i2s_stats() {
//return;
while (running) {
#ifdef TAS57xx
LOG_INFO("Jack %d Voltage %.2fV", !gpio_get_level(JACK_GPIO), adc1_get_raw(ADC1_CHANNEL_7) / 4095. * (10+174)/10. * 1.1);
battery.sum += adc1_get_raw(ADC1_CHANNEL_7) / 4095. * (10+174)/10. * 1.1;
if (++battery.count == (300 * 1000) / STATS_PERIOD_MS) {
battery.avg = battery.sum / battery.count;
battery.sum = battery.count = 0;
LOG_INFO("Voltage %.2fV", battery.avg);
}
#endif
LOCK;
output_state state = output.state;
UNLOCK;