altos: Add initial TeleBT code

[fw/altos] / src / ao_serial.c

diff --git a/src/ao_serial.c b/src/ao_serial.c
index dd383fca18ff141a5ffd7c0af0f923f746437eca..b8e9d2bf3a3db377a91e70e4e679d13546cba121 100644 (file)
--- 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
 }