X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fdrivers%2Fao_gps_skytraq.c;h=9a9dff75725f8dc315400fddded7b3aa26c1095b;hb=7f6cbfac7c1965add91ebfc28ca3eac4561b4fb6;hp=1d457a1fbf60dabb835fd3ed0f216a10e391dc55;hpb=713bd503902526c17a7657c18be947ef8fa6a47a;p=fw%2Faltos

diff --git a/src/drivers/ao_gps_skytraq.c b/src/drivers/ao_gps_skytraq.c
index 1d457a1f..9a9dff75 100644
--- a/src/drivers/ao_gps_skytraq.c
+++ b/src/drivers/ao_gps_skytraq.c
@@ -19,9 +19,18 @@
 #include "ao.h"
 #endif
 
-#define AO_GPS_LEADER          2
+#ifndef ao_gps_getchar
+#define ao_gps_getchar	ao_serial1_getchar
+#define ao_gps_fifo	ao_serial1_rx_fifo
+#endif
+
+#ifndef ao_gps_putchar
+#define ao_gps_putchar	ao_serial1_putchar
+#endif
 
-static __code char ao_gps_header[] = "GP";
+#ifndef ao_gps_set_speed
+#define ao_gps_set_speed	ao_serial1_set_speed
+#endif
 
 __xdata uint8_t ao_gps_mutex;
 static __data char ao_gps_char;
@@ -50,7 +59,7 @@ static __pdata struct ao_telemetry_satellite	ao_gps_tracking_next;
     (id^a^b^c^d^e^f^g^h^i^j^k^l^m^n), STQ_E
 
 static __code uint8_t ao_gps_config[] = {
-	SKYTRAQ_MSG_8(0x08, 1, 1, 1, 1, 1, 1, 1, 0), /* configure nmea */
+	SKYTRAQ_MSG_8(0x08, 1, 0, 1, 0, 1, 0, 0, 0), /* configure nmea */
 	/* gga interval */
 	/* gsa interval */
 	/* gsv interval */
@@ -72,7 +81,7 @@ ao_gps_lexchar(void)
 	if (ao_gps_error)
 		c = '\n';
 	else
-		c = ao_serial_getchar();
+		c = ao_gps_getchar();
 	ao_gps_cksum ^= c;
 	ao_gps_char = c;
 }
@@ -285,7 +294,7 @@ ao_nmea_gga(void)
 	if (!ao_gps_error) {
 		ao_mutex_get(&ao_gps_mutex);
 		ao_gps_tick = ao_gps_next_tick;
-		ao_xmemcpy(&ao_gps_data, &ao_gps_next, sizeof (ao_gps_data));
+		ao_xmemcpy(&ao_gps_data, PDATA_TO_XDATA(&ao_gps_next), sizeof (ao_gps_data));
 		ao_mutex_put(&ao_gps_mutex);
 		ao_wakeup(&ao_gps_data);
 	}
@@ -343,8 +352,7 @@ ao_nmea_gsv(void)
 		ao_gps_tracking_next.channels = 0;
 	else if (done) {
 		ao_mutex_get(&ao_gps_mutex);
-		ao_xmemcpy(&ao_gps_tracking_data, &ao_gps_tracking_next,
-		       sizeof(ao_gps_tracking_data));
+		ao_xmemcpy(&ao_gps_tracking_data, PDATA_TO_XDATA(&ao_gps_tracking_next), sizeof(ao_gps_tracking_data));
 		ao_mutex_put(&ao_gps_mutex);
 		ao_wakeup(&ao_gps_tracking_data);
 	}
@@ -407,7 +415,7 @@ ao_skytraq_sendbytes(__code uint8_t *b, uint8_t l)
 		uint8_t	c = *b++;
 		if (c == 0xa0)
 			ao_delay(AO_MS_TO_TICKS(500));
-		ao_serial_putchar(c);
+		ao_gps_putchar(c);
 	}
 }
 
@@ -419,11 +427,12 @@ ao_gps_nmea_parse(void)
 	ao_gps_cksum = 0;
 	ao_gps_error = 0;
 
-	for (a = 0; a < AO_GPS_LEADER; a++) {
-		ao_gps_lexchar();
-		if (ao_gps_char != ao_gps_header[a])
-			return;
-	}
+	ao_gps_lexchar();
+	if (ao_gps_char != 'G')
+		return;
+	ao_gps_lexchar();
+	if (ao_gps_char != 'P')
+		return;
 
 	ao_gps_lexchar();
 	a = ao_gps_char;
@@ -445,10 +454,12 @@ ao_gps_nmea_parse(void)
 	}
 }
 
+static uint8_t	ao_gps_updating;
+
 void
 ao_gps(void) __reentrant
 {
-	ao_serial_set_speed(AO_SERIAL_SPEED_9600);
+	ao_gps_set_speed(AO_SERIAL_SPEED_9600);
 
 	/* give skytraq time to boot in case of cold start */
 	ao_delay(AO_MS_TO_TICKS(2000));
@@ -457,36 +468,53 @@ ao_gps(void) __reentrant
 
 	for (;;) {
 		/* Locate the begining of the next record */
-		if (ao_serial_getchar() == '$') {
+		if (ao_gps_getchar() == '$') {
 			ao_gps_nmea_parse();
 		}
-
+#ifndef AO_GPS_TEST
+		while (ao_gps_updating) {
+			ao_usb_putchar(ao_gps_getchar());
+			if (ao_fifo_empty(ao_gps_fifo))
+				flush();
+		}
+#endif
 	}
 }
 
 __xdata struct ao_task ao_gps_task;
 
+static __code uint8_t ao_gps_115200[] = {
+	SKYTRAQ_MSG_3(5,0,5,0)	/* Set to 115200 baud */
+};
+
 static void
-gps_dump(void) __reentrant
+ao_gps_set_speed_delay(uint8_t speed) {
+	ao_delay(AO_MS_TO_TICKS(500));
+	ao_gps_set_speed(speed);
+	ao_delay(AO_MS_TO_TICKS(500));
+}
+
+static void
+gps_update(void) __reentrant
 {
-	uint8_t	i;
-	ao_mutex_get(&ao_gps_mutex);
-	printf ("Date: %02d/%02d/%02d\n", ao_gps_data.year, ao_gps_data.month, ao_gps_data.day);
-	printf ("Time: %02d:%02d:%02d\n", ao_gps_data.hour, ao_gps_data.minute, ao_gps_data.second);
-	printf ("Lat/Lon: %ld %ld\n", ao_gps_data.latitude, ao_gps_data.longitude);
-	printf ("Alt: %d\n", ao_gps_data.altitude);
-	printf ("Flags: 0x%x\n", ao_gps_data.flags);
-	printf ("Sats: %d", ao_gps_tracking_data.channels);
-	for (i = 0; i < ao_gps_tracking_data.channels; i++)
-		printf (" %d %d",
-			ao_gps_tracking_data.sats[i].svid,
-			ao_gps_tracking_data.sats[i].c_n_1);
-	printf ("\ndone\n");
-	ao_mutex_put(&ao_gps_mutex);
+	ao_gps_updating = 1;
+	ao_task_minimize_latency = 1;
+#if HAS_ADC
+	ao_timer_set_adc_interval(0);
+#endif
+	ao_skytraq_sendstruct(ao_gps_115200);
+	ao_gps_set_speed_delay(AO_SERIAL_SPEED_4800);
+	ao_skytraq_sendstruct(ao_gps_115200);
+	ao_gps_set_speed_delay(AO_SERIAL_SPEED_115200);
+
+	/* It's a binary protocol; abandon attempts to escape */
+	for (;;)
+		ao_gps_putchar(ao_usb_getchar());
 }
 
 __code struct ao_cmds ao_gps_cmds[] = {
-	{ gps_dump, 	"g\0Display GPS" },
+	{ ao_gps_show, 	"g\0Display GPS" },
+	{ gps_update,	"U\0Update GPS firmware" },
 	{ 0, NULL },
 };