X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fhung-chang-dso-2100%2Fapi.c;h=f3d94d2003d386de64760e37d31d4499f20b2bb0;hb=fe4acad1c2e39040c787b6245284b29c8b1b1c20;hp=5c764e45ded318d7988071b9cf843314ece6f746;hpb=58ffcf97121453fb53e885338e23e54c7ed78659;p=libsigrok.git

diff --git a/src/hardware/hung-chang-dso-2100/api.c b/src/hardware/hung-chang-dso-2100/api.c
index 5c764e45..f3d94d20 100644
--- a/src/hardware/hung-chang-dso-2100/api.c
+++ b/src/hardware/hung-chang-dso-2100/api.c
@@ -283,65 +283,12 @@ static int dev_close(struct sr_dev_inst *sdi)
 	return SR_OK;
 }
 
-static int find_in_array(GVariant *data, const GVariantType *type,
-			 const void *arr, int n)
-{
-	const char * const *sarr;
-	const char *s;
-	const uint64_t *u64arr;
-	const uint8_t *u8arr;
-	uint64_t u64;
-	uint8_t u8;
-	int i;
-
-	if (!g_variant_is_of_type(data, type))
-		return -1;
-
-	switch (g_variant_classify(data)) {
-	case G_VARIANT_CLASS_STRING:
-		s = g_variant_get_string(data, NULL);
-		sarr = arr;
-
-		for (i = 0; i < n; i++)
-			if (!strcmp(s, sarr[i]))
-				return i;
-		break;
-	case G_VARIANT_CLASS_UINT64:
-		u64 = g_variant_get_uint64(data);
-		u64arr = arr;
-
-		for (i = 0; i < n; i++)
-			if (u64 == u64arr[i])
-				return i;
-		break;
-	case G_VARIANT_CLASS_BYTE:
-		u8 = g_variant_get_byte(data);
-		u8arr = arr;
-
-		for (i = 0; i < n; i++)
-			if (u8 == u8arr[i])
-				return i;
-	default:
-		break;
-	}
-
-	return -1;
-}
-
-static int reverse_map(uint8_t u, const uint8_t *arr, int n)
-{
-	GVariant *v = g_variant_new_byte(u);
-	int i = find_in_array(v, G_VARIANT_TYPE_BYTE, arr, n);
-	g_variant_unref(v);
-	return i;
-}
-
-static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
-		const struct sr_channel_group *cg)
+static int config_get(uint32_t key, GVariant **data,
+	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 {
 	struct dev_context *devc = sdi->priv;
 	struct parport *port;
-	int i, ch = -1;
+	int idx, ch = -1;
 
 	if (cg) /* sr_config_get will validate cg using config_list */
 		ch = ((struct sr_channel *)cg->channels->data)->index;
@@ -358,49 +305,36 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
 		*data = g_variant_new_uint64(samplerates[devc->rate]);
 		break;
 	case SR_CONF_TRIGGER_SOURCE:
-		i = reverse_map(devc->cctl[0] & 0xC0, ARRAY_AND_SIZE(trigger_sources_map));
-		if (i == -1)
-			return SR_ERR;
-		else
-			*data = g_variant_new_string(trigger_sources[i]);
+		if ((idx = std_u8_idx_s(devc->cctl[0] & 0xC0, ARRAY_AND_SIZE(trigger_sources_map))) < 0)
+			return SR_ERR_BUG;
+		*data = g_variant_new_string(trigger_sources[idx]);
 		break;
 	case SR_CONF_TRIGGER_SLOPE:
 		if (devc->edge >= ARRAY_SIZE(trigger_slopes))
 			return SR_ERR;
-		else
-			*data = g_variant_new_string(trigger_slopes[devc->edge]);
+		*data = g_variant_new_string(trigger_slopes[devc->edge]);
 		break;
 	case SR_CONF_BUFFERSIZE:
 		*data = g_variant_new_uint64(buffersizes[devc->last_step]);
 		break;
 	case SR_CONF_VDIV:
-		if (ch == -1) {
+		if (!cg)
 			return SR_ERR_CHANNEL_GROUP;
-		} else {
-			i = reverse_map(devc->cctl[ch] & 0x33, ARRAY_AND_SIZE(vdivs_map));
-			if (i == -1)
-				return SR_ERR;
-			else
-				*data = g_variant_new("(tt)", vdivs[i][0],
-						      vdivs[i][1]);
-		}
+		if ((idx = std_u8_idx_s(devc->cctl[ch] & 0x33, ARRAY_AND_SIZE(vdivs_map))) < 0)
+			return SR_ERR_BUG;
+		*data = g_variant_new("(tt)", vdivs[idx][0], vdivs[idx][1]);
 		break;
 	case SR_CONF_COUPLING:
-		if (ch == -1) {
+		if (!cg)
 			return SR_ERR_CHANNEL_GROUP;
-		} else {
-			i = reverse_map(devc->cctl[ch] & 0x0C, ARRAY_AND_SIZE(coupling_map));
-			if (i == -1)
-				return SR_ERR;
-			else
-				*data = g_variant_new_string(coupling[i]);
-		}
+		if ((idx = std_u8_idx_s(devc->cctl[ch] & 0x0C, ARRAY_AND_SIZE(coupling_map))) < 0)
+			return SR_ERR_BUG;
+		*data = g_variant_new_string(coupling[idx]);
 		break;
 	case SR_CONF_PROBE_FACTOR:
-		if (ch == -1)
+		if (!cg)
 			return SR_ERR_CHANNEL_GROUP;
-		else
-			*data = g_variant_new_uint64(devc->probe[ch]);
+		*data = g_variant_new_uint64(devc->probe[ch]);
 		break;
 	default:
 		return SR_ERR_NA;
@@ -409,12 +343,12 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
 	return SR_OK;
 }
 
-static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
-		const struct sr_channel_group *cg)
+static int config_set(uint32_t key, GVariant *data,
+	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 {
 	struct dev_context *devc = sdi->priv;
-	int i, ch = -1;
-	uint64_t u, v;
+	int idx, ch = -1;
+	uint64_t u;
 
 	if (cg) /* sr_config_set will validate cg using config_list */
 		ch = ((struct sr_channel *)cg->channels->data)->index;
@@ -424,78 +358,48 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd
 		devc->frame_limit = g_variant_get_uint64(data);
 		break;
 	case SR_CONF_SAMPLERATE:
-		i = find_in_array(data, G_VARIANT_TYPE_UINT64,
-				  ARRAY_AND_SIZE(samplerates));
-		if (i == -1)
+		if ((idx = std_u64_idx(data, ARRAY_AND_SIZE(samplerates))) < 0)
 			return SR_ERR_ARG;
-		else
-			devc->rate = i;
+		devc->rate = idx;
 		break;
 	case SR_CONF_TRIGGER_SOURCE:
-		i = find_in_array(data, G_VARIANT_TYPE_STRING,
-				  ARRAY_AND_SIZE(trigger_sources));
-		if (i == -1)
+		if ((idx = std_str_idx(data, ARRAY_AND_SIZE(trigger_sources))) < 0)
 			return SR_ERR_ARG;
-		else
-			devc->cctl[0] = (devc->cctl[0] & 0x3F)
-				      | trigger_sources_map[i];
+		devc->cctl[0] = (devc->cctl[0] & 0x3F) | trigger_sources_map[idx];
 		break;
 	case SR_CONF_TRIGGER_SLOPE:
-		i = find_in_array(data, G_VARIANT_TYPE_STRING,
-				  ARRAY_AND_SIZE(trigger_slopes));
-		if (i == -1)
+		if ((idx = std_str_idx(data, ARRAY_AND_SIZE(trigger_slopes))) < 0)
 			return SR_ERR_ARG;
-		else
-			devc->edge = i;
+		devc->edge = idx;
 		break;
 	case SR_CONF_BUFFERSIZE:
-		i = find_in_array(data, G_VARIANT_TYPE_UINT64,
-				  ARRAY_AND_SIZE(buffersizes));
-		if (i == -1)
+		if ((idx = std_u64_idx(data, ARRAY_AND_SIZE(buffersizes))) < 0)
 			return SR_ERR_ARG;
-		else
-			devc->last_step = i;
+		devc->last_step = idx;
 		break;
 	case SR_CONF_VDIV:
-		if (ch == -1) {
+		if (!cg)
 			return SR_ERR_CHANNEL_GROUP;
-		} else if (!g_variant_is_of_type(data, G_VARIANT_TYPE("(tt)"))) {
+		if (!g_variant_is_of_type(data, G_VARIANT_TYPE("(tt)")))
 			return SR_ERR_ARG;
-		} else {
-			g_variant_get(data, "(tt)", &u, &v);
-			for (i = 0; i < (int)ARRAY_SIZE(vdivs); i++)
-				if (vdivs[i][0] == u && vdivs[i][1] == v)
-					break;
-			if (i == ARRAY_SIZE(vdivs))
-				return SR_ERR_ARG;
-			else
-				devc->cctl[ch] = (devc->cctl[ch] & 0xCC)
-					       | vdivs_map[i];
-		}
+		if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(vdivs))) < 0)
+			return SR_ERR_ARG;
+		devc->cctl[ch] = (devc->cctl[ch] & 0xCC) | vdivs_map[idx];
 		break;
 	case SR_CONF_COUPLING:
-		if (ch == -1) {
+		if (!cg)
 			return SR_ERR_CHANNEL_GROUP;
-		} else {
-			i = find_in_array(data, G_VARIANT_TYPE_STRING,
-					  ARRAY_AND_SIZE(coupling));
-			if (i == -1)
-				return SR_ERR_ARG;
-			else
-				devc->cctl[ch] = (devc->cctl[ch] & 0xF3)
-					       | coupling_map[i];
-		}
+		if ((idx = std_str_idx(data, ARRAY_AND_SIZE(coupling))) < 0)
+			return SR_ERR_ARG;
+		devc->cctl[ch] = (devc->cctl[ch] & 0xF3) | coupling_map[idx];
 		break;
 	case SR_CONF_PROBE_FACTOR:
-		if (ch == -1) {
+		if (!cg)
 			return SR_ERR_CHANNEL_GROUP;
-		} else {
-			u = g_variant_get_uint64(data);
-			if (!u)
-				return SR_ERR_ARG;
-			else
-				devc->probe[ch] = u;
-		}
+		u = g_variant_get_uint64(data);
+		if (!u)
+			return SR_ERR_ARG;
+		devc->probe[ch] = u;
 		break;
 	default:
 		return SR_ERR_NA;
@@ -505,23 +409,24 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd
 }
 
 static int config_channel_set(const struct sr_dev_inst *sdi,
-			      struct sr_channel *ch,
-			      unsigned int changes)
+	struct sr_channel *ch, unsigned int changes)
 {
 	struct dev_context *devc = sdi->priv;
 	uint8_t v;
 
-	if (changes & SR_CHANNEL_SET_ENABLED) {
-		if (ch->enabled) {
-			v = devc->channel | (1 << ch->index);
-			if (v & (v - 1))
-				return SR_ERR;
-			devc->channel = v;
-			devc->enabled_channel->data = ch;
-		} else {
-			devc->channel &= ~(1 << ch->index);
-		}
+	if (!(changes & SR_CHANNEL_SET_ENABLED))
+		return SR_OK;
+
+	if (ch->enabled) {
+		v = devc->channel | (1 << ch->index);
+		if (v & (v - 1))
+			return SR_ERR;
+		devc->channel = v;
+		devc->enabled_channel->data = ch;
+	} else {
+		devc->channel &= ~(1 << ch->index);
 	}
+
 	return SR_OK;
 }
 
@@ -553,8 +458,8 @@ static int config_commit(const struct sr_dev_inst *sdi)
 	return hung_chang_dso_2100_move_to(sdi, state);
 }
 
-static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
-		const struct sr_channel_group *cg)
+static int config_list(uint32_t key, GVariant **data,
+	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 {
 	GSList *l;
 
@@ -585,10 +490,10 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *
 
 	switch (key) {
 	case SR_CONF_SCAN_OPTIONS:
-		return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, NULL, NULL);
+		return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, NO_OPTS, NO_OPTS);
 	case SR_CONF_DEVICE_OPTIONS:
 		if (!cg)
-			return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts);
+			return STD_CONFIG_LIST(key, data, sdi, cg, NO_OPTS, drvopts, devopts);
 		*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg));
 		break;
 	case SR_CONF_SAMPLERATE: