From: Martin Ling <redacted>
Date: Thu, 16 Jan 2014 23:25:59 +0000 (+0000)
Subject: rigol-ds: Enable/disable LA pod when (de)selecting digital channels.
X-Git-Tag: libsigrok-0.3.0~253
X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=commitdiff_plain;h=04e8e01ec6e5f293cde7d53e63fd29f0740af4a3

rigol-ds: Enable/disable LA pod when (de)selecting digital channels.
---

diff --git a/hardware/rigol-ds/api.c b/hardware/rigol-ds/api.c
index 2089865a..7f21c888 100644
--- a/hardware/rigol-ds/api.c
+++ b/hardware/rigol-ds/api.c
@@ -823,9 +823,16 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 					return SR_ERR;
 			}
 		} else if (probe->type == SR_PROBE_LOGIC) {
-			if (probe->enabled)
+			if (probe->enabled) {
 				devc->enabled_digital_probes = g_slist_append(
 						devc->enabled_digital_probes, probe);
+				/* Turn on LA module if currently off. */
+				if (!devc->la_enabled) {
+					if (set_cfg(sdi, ":LA:DISP ON") != SR_OK)
+						return SR_ERR;
+					devc->la_enabled = TRUE;
+				}
+			}
 			if (probe->enabled != devc->digital_channels[probe->index]) {
 				/* Enabled channel is currently disabled, or vice versa. */
 				if (set_cfg(sdi, ":DIG%d:TURN %s", probe->index,
@@ -838,6 +845,11 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 	if (!devc->enabled_analog_probes && !devc->enabled_digital_probes)
 		return SR_ERR;
 
+	/* Turn off LA module if on and no digital probes selected. */
+	if (devc->la_enabled && !devc->enabled_digital_probes)
+		if (set_cfg(sdi, ":LA:DISP OFF") != SR_OK)
+			return SR_ERR;
+
 	if (devc->data_source == DATA_SOURCE_LIVE) {
 		if (set_cfg(sdi, ":RUN") != SR_OK)
 			return SR_ERR;
diff --git a/hardware/rigol-ds/protocol.c b/hardware/rigol-ds/protocol.c
index 69bb151e..55d437b4 100644
--- a/hardware/rigol-ds/protocol.c
+++ b/hardware/rigol-ds/protocol.c
@@ -697,7 +697,11 @@ SR_PRIV int rigol_ds_get_dev_cfg(const struct sr_dev_inst *sdi)
 
 	/* Digital channel state. */
 	if (devc->model->has_digital) {
-		sr_dbg("Current digital channel state:");
+		if (get_cfg_string(sdi, ":LA:DISP?", &t_s) != SR_OK)
+			return SR_ERR;
+		devc->la_enabled = !strcmp(t_s, "ON") ? TRUE : FALSE;
+		sr_dbg("Logic analyzer %s, current digital channel state:",
+				devc->la_enabled ? "enabled" : "disabled");
 		for (i = 0; i < 16; i++) {
 			cmd = g_strdup_printf(":DIG%d:TURN?", i);
 			res = get_cfg_string(sdi, cmd, &t_s);
diff --git a/hardware/rigol-ds/protocol.h b/hardware/rigol-ds/protocol.h
index f0bf04f2..e19ac490 100644
--- a/hardware/rigol-ds/protocol.h
+++ b/hardware/rigol-ds/protocol.h
@@ -111,6 +111,7 @@ struct dev_context {
 	/* Device settings */
 	gboolean analog_channels[MAX_ANALOG_PROBES];
 	gboolean digital_channels[MAX_DIGITAL_PROBES];
+	gboolean la_enabled;
 	float timebase;
 	float vdiv[MAX_ANALOG_PROBES];
 	int vert_reference[MAX_ANALOG_PROBES];