demo: Attach analog generator to channel, not channel group.
This also adds a new channel group "Analog", which has all analog channels in it.
This commit is contained in:
Bert Vermeulen
parent
d686c5ec46
commit
49224c2853
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@ -125,7 +125,7 @@ struct dev_context {
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unsigned char logic_data[LOGIC_BUFSIZE];
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/* Analog */
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int32_t num_analog_channels;
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GSList *analog_channel_groups;
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GHashTable *ch_ag;
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};
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static const int32_t scanopts[] = {
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@ -142,7 +142,11 @@ static const int devopts[] = {
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SR_CONF_LIMIT_MSEC,
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};
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static const int devopts_cg[] = {
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static const int devopts_cg_logic[] = {
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SR_CONF_PATTERN_MODE,
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};
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static const int devopts_cg_analog[] = {
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SR_CONF_PATTERN_MODE,
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SR_CONF_AMPLITUDE,
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};
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@ -175,19 +179,16 @@ static int init(struct sr_context *sr_ctx)
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return std_init(sr_ctx, di, LOG_PREFIX);
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}
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static void generate_analog_pattern(const struct sr_channel_group *cg, uint64_t sample_rate)
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static void generate_analog_pattern(struct analog_gen *ag, uint64_t sample_rate)
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{
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struct analog_gen *ag;
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double t, frequency;
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float value;
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unsigned int num_samples, i;
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int last_end;
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ag = cg->priv;
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num_samples = ANALOG_BUFSIZE / sizeof(float);
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sr_dbg("Generating %s pattern.", analog_pattern_str[ag->pattern]);
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sr_dbg("Generating %s pattern for channel group %s",
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analog_pattern_str[ag->pattern], cg->name);
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num_samples = ANALOG_BUFSIZE / sizeof(float);
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switch (ag->pattern) {
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case PATTERN_SQUARE:
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@ -260,7 +261,7 @@ static GSList *scan(GSList *options)
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struct dev_context *devc;
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struct sr_dev_inst *sdi;
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struct sr_channel *ch;
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struct sr_channel_group *cg;
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struct sr_channel_group *cg, *acg;
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struct sr_config *src;
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struct analog_gen *ag;
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GSList *devices, *l;
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@ -291,10 +292,7 @@ static GSList *scan(GSList *options)
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}
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sdi->driver = di;
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if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
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sr_err("Device context malloc failed.");
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return NULL;
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}
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devc = g_malloc(sizeof(struct dev_context));
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devc->cur_samplerate = SR_KHZ(200);
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devc->limit_samples = 0;
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devc->limit_msec = 0;
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@ -304,14 +302,10 @@ static GSList *scan(GSList *options)
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devc->logic_unitsize = (devc->num_logic_channels + 7) / 8;
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devc->logic_pattern = PATTERN_SIGROK;
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devc->num_analog_channels = num_analog_channels;
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devc->analog_channel_groups = NULL;
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/* Logic channels, all in one channel group. */
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if (!(cg = g_try_malloc(sizeof(struct sr_channel_group))))
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return NULL;
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cg = g_malloc0(sizeof(struct sr_channel_group));
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cg->name = g_strdup("Logic");
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cg->channels = NULL;
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cg->priv = NULL;
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for (i = 0; i < num_logic_channels; i++) {
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sprintf(channel_name, "D%d", i);
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if (!(ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, channel_name)))
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@ -322,24 +316,28 @@ static GSList *scan(GSList *options)
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sdi->channel_groups = g_slist_append(NULL, cg);
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/* Analog channels, channel groups and pattern generators. */
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pattern = 0;
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for (i = 0; i < num_analog_channels; i++) {
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sprintf(channel_name, "A%d", i);
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if (!(ch = sr_channel_new(i + num_logic_channels,
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SR_CHANNEL_ANALOG, TRUE, channel_name)))
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return NULL;
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sdi->channels = g_slist_append(sdi->channels, ch);
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/* An "Analog" channel group with all analog channels in it. */
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acg = g_malloc0(sizeof(struct sr_channel_group));
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acg->name = g_strdup("Analog");
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sdi->channel_groups = g_slist_append(sdi->channel_groups, acg);
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/* Every analog channel gets its own channel group. */
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if (!(cg = g_try_malloc(sizeof(struct sr_channel_group))))
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return NULL;
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devc->ch_ag = g_hash_table_new(g_direct_hash, g_direct_equal);
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for (i = 0; i < num_analog_channels; i++) {
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snprintf(channel_name, 16, "A%d", i);
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ch = sr_channel_new(i + num_logic_channels, SR_CHANNEL_ANALOG,
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TRUE, channel_name);
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sdi->channels = g_slist_append(sdi->channels, ch);
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acg->channels = g_slist_append(acg->channels, ch);
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/* Every analog channel gets its own channel group as well. */
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cg = g_malloc0(sizeof(struct sr_channel_group));
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cg->name = g_strdup(channel_name);
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cg->channels = g_slist_append(NULL, ch);
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sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
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/* Every channel group gets a generator struct. */
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if (!(ag = g_try_malloc(sizeof(struct analog_gen))))
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return NULL;
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/* Every channel gets a generator struct. */
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ag = g_malloc(sizeof(struct analog_gen));
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ag->amplitude = DEFAULT_ANALOG_AMPLITUDE;
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ag->packet.channels = cg->channels;
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ag->packet.mq = 0;
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@ -347,10 +345,7 @@ static GSList *scan(GSList *options)
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ag->packet.unit = SR_UNIT_VOLT;
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ag->packet.data = ag->pattern_data;
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ag->pattern = pattern;
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cg->priv = ag;
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sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
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devc->analog_channel_groups = g_slist_append(devc->analog_channel_groups, cg);
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g_hash_table_insert(devc->ch_ag, ch, ag);
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if (++pattern == ARRAY_SIZE(analog_pattern_str))
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pattern = 0;
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@ -385,16 +380,16 @@ static int dev_close(struct sr_dev_inst *sdi)
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static void clear_helper(void *priv)
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{
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struct dev_context *devc;
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struct sr_channel_group *cg;
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GSList *l;
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GHashTableIter iter;
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void *value;
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devc = priv;
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for (l = devc->analog_channel_groups; l; l = l->next) {
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cg = l->data;
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/* Analog generators. */
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g_free(cg->priv);
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}
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g_slist_free(devc->analog_channel_groups);
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g_hash_table_iter_init(&iter, devc->ch_ag);
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while (g_hash_table_iter_next(&iter, NULL, &value))
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g_free(value);
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g_hash_table_unref(devc->ch_ag);
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g_free(devc);
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}
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@ -428,12 +423,13 @@ static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
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case SR_CONF_PATTERN_MODE:
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if (!cg)
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return SR_ERR_CHANNEL_GROUP;
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/* Any channel in the group will do. */
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ch = cg->channels->data;
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if (ch->type == SR_CHANNEL_LOGIC) {
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pattern = devc->logic_pattern;
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*data = g_variant_new_string(logic_pattern_str[pattern]);
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} else if (ch->type == SR_CHANNEL_ANALOG) {
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ag = cg->priv;
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ag = g_hash_table_lookup(devc->ch_ag, ch);
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pattern = ag->pattern;
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*data = g_variant_new_string(analog_pattern_str[pattern]);
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} else
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@ -448,10 +444,11 @@ static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
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case SR_CONF_AMPLITUDE:
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if (!cg)
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return SR_ERR_CHANNEL_GROUP;
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/* Any channel in the group will do. */
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ch = cg->channels->data;
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if (ch->type != SR_CHANNEL_ANALOG)
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return SR_ERR_ARG;
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ag = cg->priv;
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ag = g_hash_table_lookup(devc->ch_ag, ch);
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*data = g_variant_new_double(ag->amplitude);
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break;
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default:
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@ -467,7 +464,8 @@ static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
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struct dev_context *devc;
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struct analog_gen *ag;
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struct sr_channel *ch;
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int pattern, ret;
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GSList *l;
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int logic_pattern, analog_pattern, ret;
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unsigned int i;
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const char *stropt;
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@ -497,49 +495,55 @@ static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
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return SR_ERR_CHANNEL_GROUP;
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stropt = g_variant_get_string(data, NULL);
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ch = cg->channels->data;
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pattern = -1;
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if (ch->type == SR_CHANNEL_LOGIC) {
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logic_pattern = analog_pattern = -1;
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for (i = 0; i < ARRAY_SIZE(logic_pattern_str); i++) {
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if (!strcmp(stropt, logic_pattern_str[i])) {
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pattern = i;
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logic_pattern = i;
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break;
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}
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}
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if (pattern == -1)
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return SR_ERR_ARG;
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devc->logic_pattern = pattern;
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/* Might as well do this now, these are static. */
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if (pattern == PATTERN_ALL_LOW)
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memset(devc->logic_data, 0x00, LOGIC_BUFSIZE);
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else if (pattern == PATTERN_ALL_HIGH)
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memset(devc->logic_data, 0xff, LOGIC_BUFSIZE);
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sr_dbg("Setting logic pattern to %s",
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logic_pattern_str[pattern]);
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} else if (ch->type == SR_CHANNEL_ANALOG) {
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for (i = 0; i < ARRAY_SIZE(analog_pattern_str); i++) {
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if (!strcmp(stropt, analog_pattern_str[i])) {
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pattern = i;
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analog_pattern = i;
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break;
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}
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}
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if (pattern == -1)
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if (logic_pattern == -1 && analog_pattern == -1)
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return SR_ERR_ARG;
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sr_dbg("Setting analog pattern for channel group %s to %s",
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cg->name, analog_pattern_str[pattern]);
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ag = cg->priv;
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ag->pattern = pattern;
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for (l = cg->channels; l; l = l->next) {
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ch = l->data;
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if (ch->type == SR_CHANNEL_LOGIC) {
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if (logic_pattern == -1)
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return SR_ERR_ARG;
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sr_dbg("Setting logic pattern to %s",
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logic_pattern_str[logic_pattern]);
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devc->logic_pattern = logic_pattern;
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/* Might as well do this now, these are static. */
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if (logic_pattern == PATTERN_ALL_LOW)
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memset(devc->logic_data, 0x00, LOGIC_BUFSIZE);
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else if (logic_pattern == PATTERN_ALL_HIGH)
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memset(devc->logic_data, 0xff, LOGIC_BUFSIZE);
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} else if (ch->type == SR_CHANNEL_ANALOG) {
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if (analog_pattern == -1)
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return SR_ERR_ARG;
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sr_dbg("Setting analog pattern for channel %s to %s",
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ch->name, analog_pattern_str[analog_pattern]);
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ag = g_hash_table_lookup(devc->ch_ag, ch);
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ag->pattern = analog_pattern;
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} else
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return SR_ERR_BUG;
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}
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break;
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case SR_CONF_AMPLITUDE:
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if (!cg)
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return SR_ERR_CHANNEL_GROUP;
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ch = cg->channels->data;
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for (l = cg->channels; l; l = l->next) {
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ch = l->data;
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if (ch->type != SR_CHANNEL_ANALOG)
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return SR_ERR_ARG;
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ag = cg->priv;
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ag = g_hash_table_lookup(devc->ch_ag, ch);
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ag->amplitude = g_variant_get_double(data);
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}
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break;
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default:
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ret = SR_ERR_NA;
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@ -583,11 +587,20 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
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return SR_ERR_NA;
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}
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} else {
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/* Any channel in the group will do. */
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ch = cg->channels->data;
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switch (key) {
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case SR_CONF_DEVICE_OPTIONS:
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if (ch->type == SR_CHANNEL_LOGIC)
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*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
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devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(int32_t));
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devopts_cg_logic, ARRAY_SIZE(devopts_cg_logic),
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sizeof(int32_t));
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else if (ch->type == SR_CHANNEL_ANALOG)
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*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
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devopts_cg_analog, ARRAY_SIZE(devopts_cg_analog),
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sizeof(int32_t));
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else
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return SR_ERR_BUG;
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break;
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case SR_CONF_PATTERN_MODE:
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if (ch->type == SR_CHANNEL_LOGIC)
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@ -655,9 +668,9 @@ static int prepare_data(int fd, int revents, void *cb_data)
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struct dev_context *devc;
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struct sr_datafeed_packet packet;
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struct sr_datafeed_logic logic;
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struct sr_channel_group *cg;
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struct analog_gen *ag;
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GSList *l;
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GHashTableIter iter;
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void *value;
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uint64_t logic_todo, analog_todo, expected_samplenum, analog_sent, sending_now;
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int64_t time, elapsed;
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@ -701,9 +714,10 @@ static int prepare_data(int fd, int revents, void *cb_data)
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/* Analog, one channel at a time */
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if (analog_todo > 0) {
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analog_sent = 0;
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for (l = devc->analog_channel_groups; l; l = l->next) {
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cg = l->data;
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ag = cg->priv;
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g_hash_table_iter_init(&iter, devc->ch_ag);
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while (g_hash_table_iter_next(&iter, NULL, &value)) {
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ag = value;
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packet.type = SR_DF_ANALOG;
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packet.payload = &ag->packet;
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@ -737,8 +751,9 @@ static int prepare_data(int fd, int revents, void *cb_data)
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static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
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{
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GSList *l;
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struct dev_context *devc;
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GHashTableIter iter;
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void *value;
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(void)cb_data;
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@ -761,8 +776,9 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
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return SR_ERR;
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}
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for (l = devc->analog_channel_groups; l; l = l->next)
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generate_analog_pattern(l->data, devc->cur_samplerate);
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g_hash_table_iter_init(&iter, devc->ch_ag);
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while (g_hash_table_iter_next(&iter, NULL, &value))
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generate_analog_pattern(value, devc->cur_samplerate);
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devc->channel = g_io_channel_unix_new(devc->pipe_fds[0]);
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g_io_channel_set_flags(devc->channel, G_IO_FLAG_NONBLOCK, NULL);
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