diff options
Diffstat (limited to 'app/usart.c')
| -rw-r--r-- | app/usart.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/app/usart.c b/app/usart.c index f510682..273c3bc 100644 --- a/app/usart.c +++ b/app/usart.c @@ -2,8 +2,11 @@ #define BUFFER_SIZE 256 -static ring_t output_ring; -static uint8_t output_ring_buf[BUFFER_SIZE]; +ring_t rx_ring; +static uint8_t rx_ring_buf[BUFFER_SIZE]; + +ring_t tx_ring; +static uint8_t tx_ring_buf[BUFFER_SIZE]; void usart1_isr (void) @@ -18,7 +21,7 @@ usart1_isr (void) /* Retrieve the data from the peripheral. */ data = usart_recv (USART1); - kvm_recv (data); + ring_write_byte(&rx_ring,data); } /* Check if we were called because of TXE. */ @@ -26,7 +29,7 @@ usart1_isr (void) ((USART_SR (USART1) & USART_SR_TXE) != 0)) { - if (ring_read_byte (&output_ring, &data)) + if (ring_read_byte (&tx_ring, &data)) { /*No more data, Disable the TXE interrupt, it's no longer needed. */ USART_CR1 (USART1) &= ~USART_CR1_TXEIE; @@ -46,7 +49,7 @@ _write (int file, char *ptr, int len) if (file == 1) { - ret = ring_write (&output_ring, (uint8_t *) ptr, len); + ret = ring_write (&tx_ring, (uint8_t *) ptr, len); if (ret < 0) ret = -ret; @@ -62,7 +65,8 @@ _write (int file, char *ptr, int len) void usart_queue (uint8_t d) { - ring_write_byte (&output_ring, d); + + ring_write_byte (&tx_ring, d); USART_CR1 (USART1) |= USART_CR1_TXEIE; #if 0 @@ -75,7 +79,8 @@ usart_queue (uint8_t d) void usart_init (void) { - ring_init (&output_ring, output_ring_buf, sizeof (output_ring_buf)); + ring_init (&tx_ring, tx_ring_buf, sizeof (tx_ring_buf)); + ring_init (&rx_ring, rx_ring_buf, sizeof (rx_ring_buf)); /* Enable the USART1 interrupt. */ nvic_enable_irq (NVIC_USART1_IRQ); |