X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fao_serial.c;h=b8e9d2bf3a3db377a91e70e4e679d13546cba121;hb=39bde78edc863d9d2ef50a59b8f28ab6274892b4;hp=e926b4e4fb24d656a04fbea8434e2b169440669d;hpb=34f148500df427c148188c0ada20bf914a7c74ba;p=fw%2Faltos

diff --git a/src/ao_serial.c b/src/ao_serial.c
index e926b4e4..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
+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;
@@ -42,7 +50,7 @@ ao_serial_tx1_start(void)
 }
 
 void
-ao_serial_tx1_isr(void) interrupt 14
+ao_serial_tx1_isr(void) __interrupt 14
 {
 	UTX1IF = 0;
 	ao_serial_tx1_started = 0;
@@ -50,6 +58,8 @@ ao_serial_tx1_isr(void) interrupt 14
 	ao_wakeup(&ao_usart1_tx_fifo);
 }
 
+static __pdata serial_echo;
+
 char
 ao_serial_getchar(void) __critical
 {
@@ -57,9 +67,39 @@ ao_serial_getchar(void) __critical
 	while (ao_fifo_empty(ao_usart1_rx_fifo))
 		ao_sleep(&ao_usart1_rx_fifo);
 	ao_fifo_remove(ao_usart1_rx_fifo, c);
+	if (serial_echo) {
+		printf("%02x ", ((int) c) & 0xff);
+		if (c >= ' ')
+			putchar(c);
+		putchar('\n');
+		flush();
+	}
+	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
 {
@@ -70,18 +110,22 @@ ao_serial_putchar(char c) __critical
 }
 
 static void
-send_serial(void)
+ao_serial_drain(void) __critical
 {
-	ao_cmd_white();
-	while (ao_cmd_lex_c != '\n') {
-		ao_serial_putchar(ao_cmd_lex_c);
-		ao_cmd_lex();
-	}
+	while (!ao_fifo_empty(ao_usart1_tx_fifo))
+		ao_sleep(&ao_usart1_tx_fifo);
+}
+
+static void
+monitor_serial(void)
+{
+	ao_cmd_hex();
+	serial_echo = ao_cmd_lex_i != 0;
 }
 
 __code struct ao_cmds ao_serial_cmds[] = {
-	{ 'S', send_serial,		"S <data>                           Send data to serial line" },
-	{ 0, send_serial, NULL },
+	{ monitor_serial,		"M <enable>\0Monitor serial data" },
+	{ 0, NULL },
 };
 
 static const struct {
@@ -92,6 +136,14 @@ static const struct {
 		/* .baud = */ 163,
 		/* .gcr  = */ (7 << UxGCR_BAUD_E_SHIFT) | UxGCR_ORDER_LSB
 	},
+	/* [AO_SERIAL_SPEED_9600] = */ {
+		/* .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
@@ -101,6 +153,9 @@ static const struct {
 void
 ao_serial_set_speed(uint8_t speed)
 {
+	ao_serial_drain();
+	if (speed > AO_SERIAL_SPEED_57600)
+		return;
 	U1BAUD = ao_serial_speeds[speed].baud;
 	U1GCR = ao_serial_speeds[speed].gcr;
 }
@@ -136,4 +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
 }