demo: optionally accept frame limit spec at scan time

[libsigrok.git] / src / hardware / demo / api.c

diff --git a/src/hardware/demo/api.c b/src/hardware/demo/api.c
index 052878da292849ab1e9b0b9dff2ea54316c3f754..a44aa0985141bf11a13d15005f29790f94247c61 100644 (file)
--- a/src/hardware/demo/api.c
+++ b/src/hardware/demo/api.c
@@ -50,6 +50,7 @@ static const char *logic_pattern_str[] = {
 static const uint32_t scanopts[] = {
        SR_CONF_NUM_LOGIC_CHANNELS,
        SR_CONF_NUM_ANALOG_CHANNELS,
+       SR_CONF_LIMIT_FRAMES,
 };
 
 static const uint32_t drvopts[] = {
@@ -97,10 +98,12 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
        struct analog_gen *ag;
        GSList *l;
        int num_logic_channels, num_analog_channels, pattern, i;
+       uint64_t limit_frames;
        char channel_name[16];
 
        num_logic_channels = DEFAULT_NUM_LOGIC_CHANNELS;
        num_analog_channels = DEFAULT_NUM_ANALOG_CHANNELS;
+       limit_frames = DEFAULT_LIMIT_FRAMES;
        for (l = options; l; l = l->next) {
                src = l->data;
                switch (src->key) {
@@ -110,6 +113,9 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
                case SR_CONF_NUM_ANALOG_CHANNELS:
                        num_analog_channels = g_variant_get_int32(src->data);
                        break;
+               case SR_CONF_LIMIT_FRAMES:
+                       limit_frames = g_variant_get_uint64(src->data);
+                       break;
                }
        }
 
@@ -126,6 +132,7 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
        devc->all_logic_channels_mask--;
        devc->logic_pattern = DEFAULT_LOGIC_PATTERN;
        devc->num_analog_channels = num_analog_channels;
+       devc->limit_frames = limit_frames;
 
        if (num_logic_channels > 0) {
                /* Logic channels, all in one channel group. */