X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fopenbench-logic-sniffer%2Fapi.c;h=ca5f4799c584d5f42989e36dd5670055bd5f093d;hb=f7ab2f231a5c3f52f386084fa4318ee0781031ec;hp=f5a6647108fb9103e111864359db8b7a5581cb3a;hpb=63ea6141b6ed7ae9d268892a1d76db5e7969ac38;p=libsigrok.git

diff --git a/src/hardware/openbench-logic-sniffer/api.c b/src/hardware/openbench-logic-sniffer/api.c
index f5a66471..ca5f4799 100644
--- a/src/hardware/openbench-logic-sniffer/api.c
+++ b/src/hardware/openbench-logic-sniffer/api.c
@@ -100,7 +100,6 @@ static GSList *scan(GSList *options)
 	struct dev_context *devc;
 	struct sr_channel *ch;
 	struct sr_serial_dev_inst *serial;
-	GPollFD probefd;
 	GSList *l, *devices;
 	int ret, i;
 	const char *conn, *serialcomm;
@@ -128,8 +127,7 @@ static GSList *scan(GSList *options)
 	if (serialcomm == NULL)
 		serialcomm = SERIALCOMM;
 
-	if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
-		return NULL;
+	serial = sr_serial_dev_inst_new(conn, serialcomm);
 
 	/* The discovery procedure is like this: first send the Reset
 	 * command (0x00) 5 times, since the device could be anywhere
@@ -158,38 +156,47 @@ static GSList *scan(GSList *options)
 	/* Wait 10ms for a response. */
 	g_usleep(10000);
 
-	sp_get_port_handle(serial->data, &probefd.fd);
-	probefd.events = G_IO_IN;
-	g_poll(&probefd, 1, 1);
-
-	if (probefd.revents != G_IO_IN)
+	if (sp_input_waiting(serial->data) == 0) {
+		sr_dbg("Didn't get any reply.");
 		return NULL;
-	if (serial_read_blocking(serial, buf, 4, serial_timeout(serial, 4)) != 4)
+	}
+
+	ret = serial_read_blocking(serial, buf, 4, serial_timeout(serial, 4));
+	if (ret != 4) {
+		sr_err("Invalid reply (expected 4 bytes, got %d).", ret);
 		return NULL;
-	if (strncmp(buf, "1SLO", 4) && strncmp(buf, "1ALS", 4))
+	}
+
+	if (strncmp(buf, "1SLO", 4) && strncmp(buf, "1ALS", 4)) {
+		sr_err("Invalid reply (expected '1SLO' or '1ALS', got "
+		       "'%c%c%c%c').", buf[0], buf[1], buf[2], buf[3]);
 		return NULL;
+	}
 
 	/* Definitely using the OLS protocol, check if it supports
 	 * the metadata command.
 	 */
 	send_shortcommand(serial, CMD_METADATA);
-	if (g_poll(&probefd, 1, 10) > 0) {
+
+	/* Wait 10ms for a response. */
+	g_usleep(10000);
+
+	if (sp_input_waiting(serial->data) != 0) {
 		/* Got metadata. */
 		sdi = get_metadata(serial);
 		devc = sdi->priv;
 	} else {
 		/* Not an OLS -- some other board that uses the sump protocol. */
 		sr_info("Device does not support metadata.");
-		sdi = sr_dev_inst_new();
+		sdi = g_malloc0(sizeof(struct sr_dev_inst));
 		sdi->status = SR_ST_INACTIVE;
 		sdi->vendor = g_strdup("Sump");
 		sdi->model = g_strdup("Logic Analyzer");
 		sdi->version = g_strdup("v1.0");
 		sdi->driver = di;
 		for (i = 0; i < 32; i++) {
-			if (!(ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
-					ols_channel_names[i])))
-				return 0;
+			ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
+					ols_channel_names[i]);
 			sdi->channels = g_slist_append(sdi->channels, ch);
 		}
 		devc = ols_dev_new();