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sound: little cleaner idle handling (#2078) 

Co-authored-by: Comma Device <device@comma.ai>
This commit is contained in:
Adeeb Shihadeh 2024-11-14 01:04:59 -08:00 committed by GitHub
parent dec9223f97
commit 39c966fb27
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GPG Key ID: B5690EEEBB952194
1 changed files with 7 additions and 18 deletions
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25
board/stm32h7/sound.h
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@ -1,15 +1,9 @@
#define SOUND_RX_BUF_SIZE 2000U
#define SOUND_TX_BUF_SIZE (SOUND_RX_BUF_SIZE/2U)
__attribute__((section(".sram4"))) static uint16_t sound_rx_buf[2][SOUND_RX_BUF_SIZE];
typedef enum {
OFF = 0,
IDLE = 1,
PLAYING = 2,
} SoundStatus;
static SoundStatus sound_status = OFF;
static uint8_t sound_idle_count;
// Playback processing
static void BDMA_Channel0_IRQ_Handler(void) {
@ -24,10 +18,10 @@ static void BDMA_Channel0_IRQ_Handler(void) {
tx_buf[i/2U] = ((sound_rx_buf[buf_idx][i] + (1UL << 14)) >> 3);
}
if (sound_status == OFF) {
if (sound_idle_count == 0U) {
current_board->set_amp_enabled(true);
}
sound_status = PLAYING;
sound_idle_count = 2U;
DMA1->LIFCR |= 0xF40;
DMA1_Stream1->CR &= ~DMA_SxCR_EN;
@ -37,16 +31,11 @@ static void BDMA_Channel0_IRQ_Handler(void) {
}
void sound_tick(void) {
switch (sound_status) {
case IDLE:
if (sound_idle_count > 0U) {
sound_idle_count--;
if (sound_idle_count == 0U) {
current_board->set_amp_enabled(false);
sound_status = OFF;
break;
case PLAYING:
sound_status = IDLE;
break;
default:
break;
}
}
}