X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Finput%2Fchronovu_la8.c;h=53e1477321510583c7529d60c8411ccc4c5b4b01;hb=6ec6c43b4738dbc7091f4a49a4ec80ea6102cb52;hp=058d8dd5b5d89d3ac4c43392804f09b3ff476d77;hpb=edd28877cc74f9f0c063910d3cc24729db67f3f4;p=libsigrok.git

diff --git a/src/input/chronovu_la8.c b/src/input/chronovu_la8.c
index 058d8dd5..53e14773 100644
--- a/src/input/chronovu_la8.c
+++ b/src/input/chronovu_la8.c
@@ -18,19 +18,20 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
+#include <config.h>
 #include <stdlib.h>
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/stat.h>
-#include "libsigrok.h"
+#include <libsigrok/libsigrok.h>
 #include "libsigrok-internal.h"
 
 #define LOG_PREFIX "input/chronovu-la8"
 
 #define DEFAULT_NUM_CHANNELS    8
-#define DEFAULT_SAMPLERATE      100000000L
-#define MAX_CHUNK_SIZE          4096
-#define CHRONOVU_LA8_FILESIZE   8 * 1024 * 1024 + 5
+#define DEFAULT_SAMPLERATE      SR_MHZ(100)
+#define MAX_CHUNK_SIZE          (4 * 1024)
+#define CHRONOVU_LA8_FILESIZE   ((8 * 1024 * 1024) + 5)
 
 struct context {
 	gboolean started;
@@ -51,7 +52,6 @@ static int format_match(GHashTable *metadata)
 
 static int init(struct sr_input *in, GHashTable *options)
 {
-	struct sr_channel *ch;
 	struct context *inc;
 	int num_channels, i;
 	char name[16];
@@ -62,21 +62,20 @@ static int init(struct sr_input *in, GHashTable *options)
 		return SR_ERR_ARG;
 	}
 
-	in->sdi = sr_dev_inst_new(0, SR_ST_ACTIVE, NULL, NULL, NULL);
+	in->sdi = g_malloc0(sizeof(struct sr_dev_inst));
 	in->priv = inc = g_malloc0(sizeof(struct context));
 
 	inc->samplerate = g_variant_get_uint64(g_hash_table_lookup(options, "samplerate"));
 
 	for (i = 0; i < num_channels; i++) {
 		snprintf(name, 16, "%d", i);
-		ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, name);
-		in->sdi->channels = g_slist_append(in->sdi->channels, ch);
+		sr_channel_new(in->sdi, i, SR_CHANNEL_LOGIC, TRUE, name);
 	}
 
 	return SR_OK;
 }
 
-static int receive(const struct sr_input *in, GString *buf)
+static int process_buffer(struct sr_input *in)
 {
 	struct sr_datafeed_packet packet;
 	struct sr_datafeed_meta meta;
@@ -84,60 +83,77 @@ static int receive(const struct sr_input *in, GString *buf)
 	struct sr_config *src;
 	struct context *inc;
 	gsize chunk_size, i;
-	int chunk, num_channels;
+	int chunk;
 
 	inc = in->priv;
-
-	g_string_append_len(in->buf, buf->str, buf->len);
-
-	num_channels = g_slist_length(in->sdi->channels);
-
-	std_session_send_df_header(in->sdi, LOG_PREFIX);
-	inc->started = TRUE;
-
-	packet.type = SR_DF_META;
-	packet.payload = &meta;
-	src = sr_config_new(SR_CONF_SAMPLERATE, g_variant_new_uint64(inc->samplerate));
-	meta.config = g_slist_append(NULL, src);
-	sr_session_send(in->sdi, &packet);
-	sr_config_free(src);
+	if (!inc->started) {
+		std_session_send_df_header(in->sdi, LOG_PREFIX);
+
+		if (inc->samplerate) {
+			packet.type = SR_DF_META;
+			packet.payload = &meta;
+			src = sr_config_new(SR_CONF_SAMPLERATE, g_variant_new_uint64(inc->samplerate));
+			meta.config = g_slist_append(NULL, src);
+			sr_session_send(in->sdi, &packet);
+			sr_config_free(src);
+		}
+
+		inc->started = TRUE;
+	}
 
 	packet.type = SR_DF_LOGIC;
 	packet.payload = &logic;
-	logic.unitsize = (num_channels + 7) / 8;
-	logic.data = in->buf->str;
+	logic.unitsize = (g_slist_length(in->sdi->channels) + 7) / 8;
 
 	/* Cut off at multiple of unitsize. */
 	chunk_size = in->buf->len / logic.unitsize * logic.unitsize;
 
-	chunk = 0;
 	for (i = 0; i < chunk_size; i += chunk) {
-		chunk = MAX(MAX_CHUNK_SIZE, chunk_size - i);
+		logic.data = in->buf->str + i;
+		chunk = MIN(MAX_CHUNK_SIZE, chunk_size - i);
 		logic.length = chunk;
 		sr_session_send(in->sdi, &packet);
 	}
-
-	if (in->buf->len > chunk_size)
-		g_string_erase(in->buf, 0, in->buf->len - chunk_size);
+	g_string_erase(in->buf, 0, chunk_size);
 
 	return SR_OK;
 }
 
-static int cleanup(struct sr_input *in)
+static int receive(struct sr_input *in, GString *buf)
+{
+	int ret;
+
+	g_string_append_len(in->buf, buf->str, buf->len);
+
+	if (!in->sdi_ready) {
+		/* sdi is ready, notify frontend. */
+		in->sdi_ready = TRUE;
+		return SR_OK;
+	}
+
+	ret = process_buffer(in);
+
+	return ret;
+}
+
+static int end(struct sr_input *in)
 {
-	struct sr_datafeed_packet packet;
 	struct context *inc;
+	struct sr_datafeed_packet packet;
+	int ret;
 
-	inc = in->priv;
+	if (in->sdi_ready)
+		ret = process_buffer(in);
+	else
+		ret = SR_OK;
 
+	inc = in->priv;
 	if (inc->started) {
 		packet.type = SR_DF_END;
 		sr_session_send(in->sdi, &packet);
 	}
-	g_free(in->priv);
-	in->priv = NULL;
 
-	return SR_OK;
+	return ret;
 }
 
 static struct sr_option options[] = {
@@ -160,10 +176,11 @@ SR_PRIV struct sr_input_module input_chronovu_la8 = {
 	.id = "chronovu-la8",
 	.name = "Chronovu-LA8",
 	.desc = "ChronoVu LA8",
+	.exts = (const char*[]){"kdt", NULL},
 	.metadata = { SR_INPUT_META_FILESIZE | SR_INPUT_META_REQUIRED },
 	.options = get_options,
 	.format_match = format_match,
 	.init = init,
 	.receive = receive,
-	.cleanup = cleanup,
+	.end = end,
 };