X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Falsa%2Fapi.c;h=e2efbf468dc944b21f56f7ac7b91808c4552d39f;hb=4afdfd4628e9955af02a3ea619ecdfe469f9a9e2;hp=86ab6a7c9bee0aa35c8f1b7d62016372e7f8c72b;hpb=123e13138385055003cb6bc09e74df783df5af85;p=libsigrok.git

diff --git a/hardware/alsa/api.c b/hardware/alsa/api.c
index 86ab6a7c..e2efbf46 100644
--- a/hardware/alsa/api.c
+++ b/hardware/alsa/api.c
@@ -52,17 +52,7 @@ static int clear_instances(void)
 
 static int hw_init(struct sr_context *sr_ctx)
 {
-	struct drv_context *drvc;
-
-	if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
-		sr_err("Driver context malloc failed.");
-		return SR_ERR_MALLOC;
-	}
-
-	drvc->sr_ctx = sr_ctx;
-	di->priv = drvc;
-
-	return SR_OK;
+	return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
 }
 
 static GSList *hw_scan(GSList *options)
@@ -72,11 +62,7 @@ static GSList *hw_scan(GSList *options)
 
 static GSList *hw_dev_list(void)
 {
-	struct drv_context *drvc;
-
-	drvc = di->priv;
-
-	return drvc->instances;
+	return ((struct drv_context *)(di->priv))->instances;
 }
 
 static int hw_dev_open(struct sr_dev_inst *sdi)
@@ -117,8 +103,6 @@ static int hw_dev_close(struct sr_dev_inst *sdi)
 
 	devc = sdi->priv;
 
-	sr_dbg("Closing device.");
-
 	if (devc->capture_handle) {
 		sr_dbg("Closing PCM device.");
 		if ((ret = snd_pcm_close(devc->capture_handle)) < 0) {
@@ -144,14 +128,9 @@ static int config_get(int id, const void **data, const struct sr_dev_inst *sdi)
 {
 	struct dev_context *devc;
 
-	if (id != SR_DI_HWCAPS) /* For SR_DI_HWCAPS sdi will be NULL. */
-		devc = sdi->priv;
-
 	switch (id) {
-	case SR_DI_HWCAPS:
-		*data = hwcaps;
-		break;
 	case SR_CONF_SAMPLERATE:
+		devc = sdi->priv;
 		*data = &devc->cur_samplerate;
 		break;
 	default:
@@ -189,6 +168,9 @@ static int config_list(int key, const void **data, const struct sr_dev_inst *sdi
 	(void)sdi;
 
 	switch (key) {
+	case SR_CONF_DEVICE_OPTIONS:
+		*data = hwcaps;
+		break;
 	case SR_CONF_SAMPLERATE:
 		if (!sdi || !sdi->priv)
 			return SR_ERR_ARG;
@@ -209,8 +191,6 @@ static int config_list(int key, const void **data, const struct sr_dev_inst *sdi
 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 				    void *cb_data)
 {
-	struct sr_datafeed_packet packet;
-	struct sr_datafeed_header header;
 	struct dev_context *devc;
 	int count, ret;
 	char *endianness;
@@ -294,12 +274,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 	}
 
 	/* Send header packet to the session bus. */
-	sr_dbg("Sending SR_DF_HEADER packet.");
-	packet.type = SR_DF_HEADER;
-	packet.payload = (uint8_t *)&header;
-	header.feed_version = 1;
-	gettimeofday(&header.starttime, NULL);
-	sr_session_send(devc->cb_data, &packet);
+	std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
 
 	/* Poll every 10ms, or whenever some data comes in. */
 	sr_source_add(devc->ufds[0].fd, devc->ufds[0].events, 10,