1 files changed, 0 insertions, 104 deletions
diff --git a/src/usart.c b/src/usart.c
deleted file mode 100644
index b0ea2a4..0000000
--- a/src/usart.c
+++ /dev/null
@@ -1,104 +0,0 @@
-#include "project.h"
-
-#define BUFFER_SIZE 256
-
-static ring_t output_ring;
-static uint8_t output_ring_buf[BUFFER_SIZE];
-
-void
-usart1_isr (void)
-{
-  uint8_t data;
-
-  /* Check if we were called because of RXNE. */
-  if (((USART_CR1 (USART1) & USART_CR1_RXNEIE) != 0) &&
-      ((USART_SR (USART1) & USART_SR_RXNE) != 0))
-    {
-
-      /* Retrieve the data from the peripheral. */
-      data = usart_recv (USART1);
-
-      kvm_recv (data);
-    }
-
-  /* Check if we were called because of TXE. */
-  if (((USART_CR1 (USART1) & USART_CR1_TXEIE) != 0) &&
-      ((USART_SR (USART1) & USART_SR_TXE) != 0))
-    {
-
-      if (ring_read_byte (&output_ring, &data))
-        {
-          /*No more data, Disable the TXE interrupt, it's no longer needed. */
-          USART_CR1 (USART1) &= ~USART_CR1_TXEIE;
-        }
-      else
-        {
-          usart_send (USART1, data);
-        }
-    }
-
-}
-
-int
-_write (int file, char *ptr, int len)
-{
-  int ret;
-
-  if (file == 1)
-    {
-      ret = ring_write (&output_ring, (uint8_t *) ptr, len);
-
-      if (ret < 0)
-        ret = -ret;
-
-      USART_CR1 (USART1) |= USART_CR1_TXEIE;
-      return ret;
-    }
-
-  errno = EIO;
-  return -1;
-}
-
-void
-usart_queue (uint8_t d)
-{
-  ring_write_byte(&output_ring,d);
-  USART_CR1 (USART1) |= USART_CR1_TXEIE;
-
-#if 0
-  printf ("0x%02x ", d);
-  fflush (stdout);
-#endif
-}
-
-
-void
-usart_init (void)
-{
-  ring_init (&output_ring, output_ring_buf, sizeof (output_ring_buf));
-
-  /* Enable the USART1 interrupt. */
-  nvic_enable_irq (NVIC_USART1_IRQ);
-
-  /* Setup GPIO pin GPIO_USART1_RE_TX on GPIO port B for transmit. */
-  gpio_set_mode (GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
-                 GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX);
-
-  /* Setup GPIO pin GPIO_USART1_RE_RX on GPIO port B for receive. */
-  gpio_set_mode (GPIOA, GPIO_MODE_INPUT,
-                 GPIO_CNF_INPUT_FLOAT, GPIO_USART1_RX);
-
-  /* Setup UART parameters. */
-  usart_set_baudrate (USART1, 38400);
-  usart_set_databits (USART1, 8);
-  usart_set_stopbits (USART1, USART_STOPBITS_1);
-  usart_set_parity (USART1, USART_PARITY_NONE);
-  usart_set_flow_control (USART1, USART_FLOWCONTROL_NONE);
-  usart_set_mode (USART1, USART_MODE_TX_RX);
-
-  /* Enable USART1 Receive interrupt. */
-  USART_CR1 (USART1) |= USART_CR1_RXNEIE;
-
-  /* Finally enable the USART. */
-  usart_enable (USART1);
-}