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jack muting

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This commit is contained in:
philippe44
2019-12-06 03:58:19 -08:00
parent 71f9f82270
commit a5b2d4023b
1 changed files with 12 additions and 22 deletions
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34
components/squeezelite/output_i2s.c
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@@ -83,7 +83,7 @@ sure that using rate_delay would fix that
#define CONFIG_SPDIF_NUM -1
#endif
typedef enum { DAC_ACTIVE = 0, DAC_STANDBY, DAC_DOWN, DAC_ANALOG_UP, DAC_ANALOG_DOWN, DAC_VOLUME } dac_cmd_e;
typedef enum { DAC_ACTIVE = 0, DAC_STANDBY, DAC_DOWN, DAC_ANALOG_OFF, DAC_ANALOG_ON, DAC_VOLUME } dac_cmd_e;
// must have an integer ratio with FRAME_BLOCK (see spdif comment)
#define DMA_BUF_LEN 512
@@ -130,7 +130,6 @@ static int _i2s_write_frames(frames_t out_frames, bool silence, s32_t gainL, s32
static void *output_thread_i2s();
static void *output_thread_i2s_stats();
static void dac_cmd(dac_cmd_e cmd, ...);
static void set_analogue(bool mute);
static int tas57_detect(void);
static void spdif_convert(ISAMPLE_T *src, size_t frames, u32_t *dst, size_t *count);
@@ -160,6 +159,9 @@ static void spdif_convert(ISAMPLE_T *src, size_t frames, u32_t *dst, size_t *cou
#define VOLUME_GPIO 14
#define JACK_GPIO 34
#define TAS575x 0x98
#define TAS578x 0x90
struct tas57xx_cmd_s {
u8_t reg;
u8_t value;
@@ -172,6 +174,8 @@ static const struct tas57xx_cmd_s tas57xx_init_sequence[] = {
{ 0x02, 0x10 }, // standby
{ 0x0d, 0x10 }, // use SCK for PLL
{ 0x25, 0x08 }, // ignore SCK halt
{ 0x08, 0x10 }, // Mute control enable (from TAS5780)
{ 0x54, 0x02 }, // Mute output control (from TAS5780)
{ 0x02, 0x00 }, // restart
{ 0xff, 0xff } // end of table
};
@@ -189,8 +193,8 @@ static const struct tas57xx_cmd_s tas57xx_cmd[] = {
{ 0x02, 0x00 }, // DAC_ACTIVE
{ 0x02, 0x10 }, // DAC_STANDBY
{ 0x02, 0x01 }, // DAC_DOWN
{ 46, 0x01 }, // DAC_ANALOG_UP
{ 46, 0x00 }, // DAC_ANALOG_DOWN
{ 0x56, 0x10 }, // DAC_ANALOG_OFF
{ 0x56, 0x00 }, // DAC_ANALOG_ON
};
static u8_t tas57_addr;
@@ -243,7 +247,7 @@ void output_init_i2s(log_level level, char *device, unsigned output_buf_size, ch
}
// activate analogue output if needed
if (!jack_mutes_amp) set_analogue(true);
if (!jack_mutes_amp) dac_cmd(DAC_ANALOG_ON);
#endif
#ifdef CONFIG_I2S_BITS_PER_CHANNEL
@@ -457,7 +461,7 @@ static void *output_thread_i2s() {
if (gpio_get_level(JACK_GPIO) != jack_status) {
jack_status = gpio_get_level(JACK_GPIO);
if (jack_mutes_amp) {
set_analogue(jack_status);
dac_cmd(jack_status ? DAC_ANALOG_ON : DAC_ANALOG_OFF);
LOG_INFO("Changing jack status %d", jack_status);
}
}
@@ -641,26 +645,12 @@ void dac_cmd(dac_cmd_e cmd, ...) {
va_end(args);
}
/****************************************************************************************
* Analogue mute
*/
#ifdef TAS57xx
static void set_analogue(bool active) {
dac_cmd(DAC_STANDBY);
// need to wait a bit for TAS to execute standby before sending backend-down command
usleep(50*1000);
dac_cmd(active ? DAC_ANALOG_UP : DAC_ANALOG_DOWN);
dac_cmd(DAC_ACTIVE);
}
#endif
/****************************************************************************************
* TAS57 detection
*/
#ifdef TAS57xx
static int tas57_detect(void) {
u8_t data, addr[] = {0x90, 0x98};
u8_t data, addr[] = {TAS578x, TAS575x};
int ret;
for (int i = 0; i < sizeof(addr); i++) {
@@ -683,7 +673,7 @@ static int tas57_detect(void) {
return addr[i];
}
}
return 0;
}
#endif