diff options
Diffstat (limited to 'src/modules/px4iofirmware/serial.c')
| -rw-r--r-- | src/modules/px4iofirmware/serial.c | 20 |
1 files changed, 3 insertions, 17 deletions
diff --git a/src/modules/px4iofirmware/serial.c b/src/modules/px4iofirmware/serial.c index 94d7407df..e9adc8cd6 100644 --- a/src/modules/px4iofirmware/serial.c +++ b/src/modules/px4iofirmware/serial.c @@ -74,9 +74,6 @@ static DMA_HANDLE rx_dma; static int serial_interrupt(int irq, void *context); static void dma_reset(void); -/* if we spend this many ticks idle, reset the DMA */ -static unsigned idle_ticks; - static struct IOPacket dma_packet; /* serial register accessors */ @@ -150,16 +147,6 @@ interface_init(void) debug("serial init"); } -void -interface_tick() -{ - /* XXX look for stuck/damaged DMA and reset? */ - if (idle_ticks++ > 100) { - dma_reset(); - idle_ticks = 0; - } -} - static void rx_handle_packet(void) { @@ -230,9 +217,6 @@ rx_dma_callback(DMA_HANDLE handle, uint8_t status, void *arg) /* disable UART DMA */ rCR3 &= ~(USART_CR3_DMAT | USART_CR3_DMAR); - /* reset the idle counter */ - idle_ticks = 0; - /* handle the received packet */ rx_handle_packet(); @@ -308,6 +292,7 @@ serial_interrupt(int irq, void *context) /* it was too short - possibly truncated */ perf_count(pc_badidle); + dma_reset(); return 0; } @@ -343,7 +328,8 @@ dma_reset(void) sizeof(dma_packet), DMA_CCR_MINC | DMA_CCR_PSIZE_8BITS | - DMA_CCR_MSIZE_8BITS); + DMA_CCR_MSIZE_8BITS | + DMA_CCR_PRIVERYHI); /* start receive DMA ready for the next packet */ stm32_dmastart(rx_dma, rx_dma_callback, NULL, false); |