Sigma: Merge storage of rise/fall triggers.

[libsigrok.git] / hardware / asix-sigma / asix-sigma.c

diff --git a/hardware/asix-sigma/asix-sigma.c b/hardware/asix-sigma/asix-sigma.c
index 819afa1d2bfb54a0fff00b2e214cd6905c8afc15..08f6c9d52f78c37e1ff1bc4b8cfccc3232fb12d1 100644 (file)
--- a/hardware/asix-sigma/asix-sigma.c
+++ b/hardware/asix-sigma/asix-sigma.c
@@ -576,11 +576,13 @@ static int configure_probes(GSList *probes)
        struct probe *probe;
        GSList *l;
        int trigger_set = 0;
+       int probebit;
 
        memset(&trigger, 0, sizeof(struct sigma_trigger));
 
        for (l = probes; l; l = l->next) {
                probe = (struct probe *)l->data;
+               probebit = 1 << (probe->index - 1);
 
                if (!probe->enabled || !probe->trigger)
                        continue;
@@ -593,9 +595,9 @@ static int configure_probes(GSList *probes)
                                return SIGROK_ERR;
                        }
                        if (probe->trigger[0] == 'f')
-                               trigger.fast_fall = 1;
+                               trigger.fallingmask |= probebit;
                        else if (probe->trigger[0] == 'r')
-                               trigger.fast_fall = 0;
+                               trigger.risingmask |= probebit;
                        else {
                                g_warning("Asix Sigma only supports "
                                          "rising/falling trigger in 100 "
@@ -603,25 +605,23 @@ static int configure_probes(GSList *probes)
                                return SIGROK_ERR;
                        }
 
-                       trigger.fast_pin = probe->index - 1;
-
                        ++trigger_set;
                } else {
                        /* Simple trigger support (event). */
                        if (probe->trigger[0] == '1') {
-                               trigger.simplevalue |= 1 << (probe->index - 1);
-                               trigger.simplemask |= 1 << (probe->index - 1);
+                               trigger.simplevalue |= probebit;
+                               trigger.simplemask |= probebit;
                        }
                        else if (probe->trigger[0] == '0') {
-                               trigger.simplevalue |= 0 << (probe->index - 1);
-                               trigger.simplemask |= 1 << (probe->index - 1);
+                               trigger.simplevalue &= ~probebit;
+                               trigger.simplemask |= probebit;
                        }
                        else if (probe->trigger[0] == 'f') {
-                               trigger.fallingmask |= 1 << (probe->index - 1);
+                               trigger.fallingmask |= probebit;
                                ++trigger_set;
                        }
                        else if (probe->trigger[0] == 'r') {
-                               trigger.risingmask |= 1 << (probe->index - 1);
+                               trigger.risingmask |= probebit;
                                ++trigger_set;
                        }
 
@@ -1092,6 +1092,7 @@ static int hw_start_acquisition(int device_index, gpointer session_device_id)
        uint8_t triggerselect;
        struct triggerinout triggerinout_conf;
        struct triggerlut lut;
+       int triggerpin;
 
        session_device_id = session_device_id;
 
@@ -1111,8 +1112,18 @@ static int hw_start_acquisition(int device_index, gpointer session_device_id)
        if (cur_samplerate >= MHZ(100)) {
                sigma_set_register(WRITE_TRIGGER_SELECT1, 0x81);
 
-               triggerselect = (1 << LEDSEL1) | (trigger.fast_fall << 3) |
-                                       (trigger.fast_pin & 0x7);
+               /* Find which pin to trigger on from mask. */
+               for (triggerpin = 0; triggerpin < 8; ++triggerpin)
+                       if ((trigger.risingmask | trigger.fallingmask) &
+                           (1 << triggerpin))
+                               break;
+
+               /* Set trigger pin and light LED on trigger. */
+               triggerselect = (1 << LEDSEL1) | (triggerpin & 0x7);
+
+               /* Default rising edge. */
+               if (trigger.fallingmask)
+                       triggerselect |= 1 << 3;
 
        /* All other modes. */
        } else if (cur_samplerate <= MHZ(50)) {