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continue spdif

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This commit is contained in:
philippe44
2019-08-08 22:04:45 -07:00
parent f5cd8b1a8f
commit b3f8313c76
2 changed files with 27 additions and 12 deletions
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37
components/squeezelite/output_i2s.c
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@@ -129,6 +129,7 @@ static void spdif_convert(ISAMPLE_T *src, size_t frames, u32_t *dst, size_t *cou
#define I2C_PORT 0
#define I2C_ADDR 0x4c
#define VOLUME_GPIO 33
#define JACK_GPIO 39
struct tas575x_cmd_s {
u8_t reg;
@@ -167,8 +168,10 @@ void output_init_i2s(log_level level, char *device, unsigned output_buf_size, ch
loglevel = level;
#ifdef TAS575x
gpio_pad_select_gpio(39);
gpio_set_direction(39, GPIO_MODE_INPUT);
spdif = 0;
gpio_pad_select_gpio(JACK_GPIO);
gpio_set_direction(JACK_GPIO, GPIO_MODE_INPUT);
adc1_config_width(ADC_WIDTH_BIT_12);
adc1_config_channel_atten(ADC1_CHANNEL_0,ADC_ATTEN_DB_0);
@@ -225,7 +228,9 @@ void output_init_i2s(log_level level, char *device, unsigned output_buf_size, ch
#endif
output.write_cb = &_i2s_write_frames;
obuf = malloc(FRAME_BLOCK * bytes_per_frame);
// spdif needs 16 bytes per frame : 32 bits/sample, 2 channels, BMC encoded
if (spdif) obuf = malloc(FRAME_BLOCK * 16);
else obuf = malloc(FRAME_BLOCK * bytes_per_frame);
if (!obuf) {
LOG_ERROR("Cannot allocate i2s buffer");
return;
@@ -258,6 +263,11 @@ void output_init_i2s(log_level level, char *device, unsigned output_buf_size, ch
i2s_zero_dma_buffer(CONFIG_I2S_NUM);
isI2SStarted=false;
/*
i2s_set_clk(pll, 48000 * 2, 32, 2);
i2s_set_clk(pll, 44100 * 2, 32, 2);
*/
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN + OUTPUT_THREAD_STACK_SIZE);
@@ -348,8 +358,8 @@ static int _i2s_write_frames(frames_t out_frames, bool silence, s32_t gainL, s32
* Main output thread
*/
static void *output_thread_i2s() {
size_t count = 0, bytes, frame_block = spdif ? FRAME_BLOCK / 4 : FRAME_BLOCK;;
frames_t iframes = frame_block, oframes;
size_t count = 0, bytes;
frames_t iframes = FRAME_BLOCK, oframes;
uint32_t timer_start = 0;
int discard = 0;
uint32_t fullness = gettime_ms();
@@ -379,7 +389,6 @@ static void *output_thread_i2s() {
dac_cmd(DAC_OFF);
count = 0;
}
LOG_ERROR("Jack %d Voltage %.2fV", !gpio_get_level(39), adc1_get_raw(ADC1_CHANNEL_0) / 4095. * (10+169)/10. * 1.1);
usleep(200000);
continue;
} else if (output.state == OUTPUT_STOPPED) {
@@ -390,10 +399,8 @@ static void *output_thread_i2s() {
output.frames_played_dmp = output.frames_played;
// try to estimate how much we have consumed from the DMA buffer
output.device_frames = DMA_BUF_COUNT * DMA_BUF_LEN - ((output.updated - fullness) * output.current_sample_rate) / 1000;
oframes = _output_frames( iframes );
if (spdif) spdif_convert((ISAMPLE_T*) obuf, iframes, (u32_t*) obuf, &count);
SET_MIN_MAX_SIZED(oframes,rec,iframes);
SET_MIN_MAX_SIZED(_buf_used(outputbuf),o,outputbuf->size);
SET_MIN_MAX_SIZED(_buf_used(streambuf),s,streambuf->size);
@@ -407,7 +414,7 @@ static void *output_thread_i2s() {
synced = true;
} else if (discard) {
discard -= oframes;
iframes = discard ? min(frame_block, discard) : frame_block;
iframes = discard ? min(FRAME_BLOCK, discard) : FRAME_BLOCK;
UNLOCK;
continue;
}
@@ -437,12 +444,19 @@ static void *output_thread_i2s() {
*/
i2s_config.sample_rate = output.current_sample_rate;
i2s_set_sample_rates(CONFIG_I2S_NUM, i2s_config.sample_rate);
// in spif mode, each sample is a 32 bits value and because of BMC, clock rate must be doubled
//i2s_set_clk(0, i2s_config.sample_rate * 2, 32, 2);
i2s_zero_dma_buffer(CONFIG_I2S_NUM);
//return;
}
// we assume that here we have been able to entirely fill the DMA buffers
i2s_write(CONFIG_I2S_NUM, obuf, oframes * bytes_per_frame, &bytes, portMAX_DELAY);
if (spdif) {
spdif_convert((ISAMPLE_T*) obuf, oframes, (u32_t*) obuf, &count);
i2s_write(CONFIG_I2S_NUM, obuf, oframes * 16, &bytes, portMAX_DELAY);
} else {
i2s_write(CONFIG_I2S_NUM, obuf, oframes * bytes_per_frame, &bytes, portMAX_DELAY);
}
fullness = gettime_ms();
if (bytes != oframes * bytes_per_frame) {
@@ -461,6 +475,7 @@ static void *output_thread_i2s() {
*/
static void *output_thread_i2s_stats() {
while (running) {
LOG_ERROR("Jack %d Voltage %.2fV", !gpio_get_level(JACK_GPIO), adc1_get_raw(ADC1_CHANNEL_0) / 4095. * (10+169)/10. * 1.1);
LOCK;
output_state state = output.state;
UNLOCK;