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

[libsigrok.git] / hardware / rigol-ds / api.c

diff --git a/hardware/rigol-ds/api.c b/hardware/rigol-ds/api.c
index 2089865aa194cae679bb036a6243eae05355015d..7f21c8886067c8c63b5579578a2410add1f8c532 100644 (file)
--- 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;