diff options
Diffstat (limited to 'src/ao_serial.c')
| -rw-r--r-- | src/ao_serial.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/ao_serial.c b/src/ao_serial.c index dd383fca..b8e9d2bf 100644 --- a/src/ao_serial.c +++ b/src/ao_serial.c @@ -20,12 +20,20 @@ volatile __xdata struct ao_fifo ao_usart1_rx_fifo; volatile __xdata struct ao_fifo ao_usart1_tx_fifo; +#if USE_SERIAL_STDIN +__pdata uint8_t ao_serial_stdin; +#endif + void ao_serial_rx1_isr(void) __interrupt 3 { if (!ao_fifo_full(ao_usart1_rx_fifo)) ao_fifo_insert(ao_usart1_rx_fifo, U1DBUF); ao_wakeup(&ao_usart1_rx_fifo); +#if USE_SERIAL_STDIN + if (ao_serial_stdin) + ao_wakeup(&ao_stdin_ready); +#endif } static __xdata uint8_t ao_serial_tx1_started; @@ -69,6 +77,29 @@ ao_serial_getchar(void) __critical return c; } +#if USE_SERIAL_STDIN +char +ao_serial_pollchar(void) __critical +{ + char c; +#if 0 + if (!ao_serial_stdin) + return AO_READ_AGAIN; +#endif + if (ao_fifo_empty(ao_usart1_rx_fifo)) + return AO_READ_AGAIN; + ao_fifo_remove(ao_usart1_rx_fifo,c); + return c; +} + +void +ao_serial_set_stdin(uint8_t stdin) +{ + ao_serial_stdin = stdin; +} + +#endif + void ao_serial_putchar(char c) __critical { @@ -109,6 +140,10 @@ static const struct { /* .baud = */ 163, /* .gcr = */ (8 << UxGCR_BAUD_E_SHIFT) | UxGCR_ORDER_LSB }, + /* [AO_SERIAL_SPEED_19200] = */ { + /* .baud = */ 163, + /* .gcr = */ (9 << UxGCR_BAUD_E_SHIFT) | UxGCR_ORDER_LSB + }, /* [AO_SERIAL_SPEED_57600] = */ { /* .baud = */ 59, /* .gcr = */ (11 << UxGCR_BAUD_E_SHIFT) | UxGCR_ORDER_LSB @@ -156,4 +191,11 @@ ao_serial_init(void) IEN2 |= IEN2_UTX1IE; ao_cmd_register(&ao_serial_cmds[0]); +#if 0 +#if USE_SERIAL_STDIN + ao_add_stdio(ao_serial_pollchar, + ao_serial_putchar, + NULL); +#endif +#endif } |