Use 'char' instead of 'uint8_t' for character data

[fw/altos] / ao_serial.c

diff --git a/ao_serial.c b/ao_serial.c
index ae5e07640b5ba98367bb072dc2eff3e9b85e8cc7..20bb4f9683a5c4ed3003a4147e5df9906e3b86a8 100644 (file)
--- a/ao_serial.c
+++ b/ao_serial.c
@@ -22,7 +22,7 @@
 struct ao_fifo {
        uint8_t insert;
        uint8_t remove;
-       uint8_t fifo[SERIAL_FIFO];
+       char    fifo[SERIAL_FIFO];
 };
 
 volatile __xdata struct ao_fifo        ao_usart1_rx_fifo;
@@ -71,10 +71,10 @@ ao_serial_tx1_isr(void) interrupt 14
        ao_wakeup(&ao_usart1_tx_fifo);
 }
 
-uint8_t
+char
 ao_serial_getchar(void) __critical
 {
-       uint8_t c;
+       char    c;
        while (ao_fifo_empty(ao_usart1_rx_fifo))
                ao_sleep(&ao_usart1_rx_fifo);
        ao_fifo_remove(ao_usart1_rx_fifo, c);
@@ -82,7 +82,7 @@ ao_serial_getchar(void) __critical
 }
 
 void
-ao_serial_putchar(uint8_t c) __critical
+ao_serial_putchar(char c) __critical
 {
        while (ao_fifo_full(ao_usart1_tx_fifo))
                ao_sleep(&ao_usart1_tx_fifo);