[libsigrok.git] / src / session_driver.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <config.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/time.h>
#include <zip.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"

#define LOG_PREFIX "virtual-session"

/* size of payloads sent across the session bus */
/** @cond PRIVATE */
#define CHUNKSIZE (512 * 1024)
/** @endcond */

SR_PRIV struct sr_dev_driver session_driver_info;

struct session_vdev {
	char *sessionfile;
	char *capturefile;
	struct zip *archive;
	struct zip_file *capfile;
	int bytes_read;
	uint64_t samplerate;
	int unitsize;
	int num_channels;
	int num_analog_channels;
	int cur_analog_channel;
	int cur_chunk;
	gboolean finished;
};

static const uint32_t devopts[] = {
	SR_CONF_CAPTUREFILE | SR_CONF_SET,
	SR_CONF_CAPTURE_UNITSIZE | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_NUM_LOGIC_CHANNELS | SR_CONF_SET,
	SR_CONF_NUM_ANALOG_CHANNELS | SR_CONF_SET,
	SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_SESSIONFILE | SR_CONF_SET,
};

static gboolean stream_session_data(struct sr_dev_inst *sdi)
{
	struct session_vdev *vdev;
	struct sr_datafeed_packet packet;
	struct sr_datafeed_logic logic;
	struct zip_stat zs;
	int ret, got_data;
	char capturefile[16];
	void *buf;

	got_data = FALSE;
	vdev = sdi->priv;
	if (!vdev->capfile) {
		/* No capture file opened yet, or finished with the last
		 * chunked one. */
		if (vdev->cur_chunk == 0) {
			/* capturefile is always the unchunked base name. */
			if (zip_stat(vdev->archive, vdev->capturefile, 0, &zs) != -1) {
				/* No chunks, just a single capture file. */
				vdev->cur_chunk = 0;
				if (!(vdev->capfile = zip_fopen(vdev->archive,
						vdev->capturefile, 0)))
					return FALSE;
				sr_dbg("Opened %s.", vdev->capturefile);
			} else {
				/* Try as first chunk filename. */
				snprintf(capturefile, 15, "%s-1", vdev->capturefile);
				if (zip_stat(vdev->archive, capturefile, 0, &zs) != -1) {
					vdev->cur_chunk = 1;
					if (!(vdev->capfile = zip_fopen(vdev->archive,
							capturefile, 0)))
						return FALSE;
					sr_dbg("Opened %s.", capturefile);
				} else {
					sr_err("No capture file '%s' in " "session file '%s'.",
							vdev->capturefile, vdev->sessionfile);
					return FALSE;
				}
			}
		} else {
			/* Capture data is chunked, advance to the next chunk. */
			vdev->cur_chunk++;
			snprintf(capturefile, 15, "%s-%d", vdev->capturefile,
					vdev->cur_chunk);
			if (zip_stat(vdev->archive, capturefile, 0, &zs) != -1) {
				if (!(vdev->capfile = zip_fopen(vdev->archive,
						capturefile, 0)))
					return FALSE;
				sr_dbg("Opened %s.", capturefile);
			} else if (vdev->cur_analog_channel < vdev->num_analog_channels) {
				vdev->capturefile = g_strdup_printf("analog-1-%d",
						vdev->cur_analog_channel + 1);
				vdev->cur_analog_channel++;
				vdev->cur_chunk = 0;
				return TRUE;
			} else {
				/* We got all the chunks, finish up. */
				return FALSE;
			}
		}
	}

	buf = g_malloc(CHUNKSIZE);

	ret = zip_fread(vdev->capfile, buf,
			CHUNKSIZE / vdev->unitsize * vdev->unitsize);
	if (ret > 0) {
		if (ret % vdev->unitsize != 0)
			sr_warn("Read size %d not a multiple of the"
				" unit size %d.", ret, vdev->unitsize);
		got_data = TRUE;
		packet.type = SR_DF_LOGIC;
		packet.payload = &logic;
		logic.length = ret;
		logic.unitsize = vdev->unitsize;
		logic.data = buf;
		vdev->bytes_read += ret;
		sr_session_send(sdi, &packet);
	} else {
		/* done with this capture file */
		zip_fclose(vdev->capfile);
		vdev->capfile = NULL;
		if (vdev->cur_chunk != 0) {
			/* There might be more chunks, so don't fall through
			 * to the SR_DF_END here. */
			got_data = TRUE;
		}
	}
	g_free(buf);

	return got_data;
}

static int receive_data(int fd, int revents, void *cb_data)
{
	struct sr_dev_inst *sdi;
	struct session_vdev *vdev;
	struct sr_datafeed_packet packet;

	(void)fd;
	(void)revents;

	sdi = cb_data;
	vdev = sdi->priv;

	if (!vdev->finished && !stream_session_data(sdi))
		vdev->finished = TRUE;
	if (!vdev->finished)
		return G_SOURCE_CONTINUE;

	if (vdev->capfile) {
		zip_fclose(vdev->capfile);
		vdev->capfile = NULL;
	}
	if (vdev->archive) {
		zip_discard(vdev->archive);
		vdev->archive = NULL;
	}
	packet.type = SR_DF_END;
	packet.payload = NULL;
	sr_session_send(sdi, &packet);

	return G_SOURCE_REMOVE;
}

/* driver callbacks */

static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
{
	return std_init(sr_ctx, di, LOG_PREFIX);
}

static int dev_clear(const struct sr_dev_driver *di)
{
	struct drv_context *drvc;
	GSList *l;

	drvc = di->context;
	for (l = drvc->instances; l; l = l->next)
		sr_dev_inst_free(l->data);
	g_slist_free(drvc->instances);
	drvc->instances = NULL;

	return SR_OK;
}

static int dev_open(struct sr_dev_inst *sdi)
{
	struct sr_dev_driver *di;
	struct drv_context *drvc;
	struct session_vdev *vdev;

	di = sdi->driver;
	drvc = di->context;
	vdev = g_malloc0(sizeof(struct session_vdev));
	sdi->priv = vdev;
	drvc->instances = g_slist_append(drvc->instances, sdi);

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	const struct session_vdev *const vdev = sdi->priv;
	g_free(vdev->sessionfile);
	g_free(vdev->capturefile);

	g_free(sdi->priv);
	sdi->priv = NULL;

	return SR_OK;
}

static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	struct session_vdev *vdev;

	(void)cg;

	if (!sdi)
		return SR_ERR;

	vdev = sdi->priv;

	switch (key) {
	case SR_CONF_SAMPLERATE:
		*data = g_variant_new_uint64(vdev->samplerate);
		break;
	case SR_CONF_CAPTURE_UNITSIZE:
		*data = g_variant_new_uint64(vdev->unitsize);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	struct session_vdev *vdev;

	(void)cg;

	vdev = sdi->priv;

	switch (key) {
	case SR_CONF_SAMPLERATE:
		vdev->samplerate = g_variant_get_uint64(data);
		sr_info("Setting samplerate to %" PRIu64 ".", vdev->samplerate);
		break;
	case SR_CONF_SESSIONFILE:
		g_free(vdev->sessionfile);
		vdev->sessionfile = g_strdup(g_variant_get_string(data, NULL));
		sr_info("Setting sessionfile to '%s'.", vdev->sessionfile);
		break;
	case SR_CONF_CAPTUREFILE:
		g_free(vdev->capturefile);
		vdev->capturefile = g_strdup(g_variant_get_string(data, NULL));
		sr_info("Setting capturefile to '%s'.", vdev->capturefile);
		break;
	case SR_CONF_CAPTURE_UNITSIZE:
		vdev->unitsize = g_variant_get_uint64(data);
		break;
	case SR_CONF_NUM_LOGIC_CHANNELS:
		vdev->num_channels = g_variant_get_int32(data);
		break;
	case SR_CONF_NUM_ANALOG_CHANNELS:
		vdev->num_analog_channels = g_variant_get_int32(data);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	(void)sdi;
	(void)cg;

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
{
	struct session_vdev *vdev;
	int ret;

	(void)cb_data;

	vdev = sdi->priv;
	vdev->bytes_read = 0;
	vdev->cur_analog_channel = 0;
	vdev->cur_chunk = 0;
	vdev->finished = FALSE;

	sr_info("Opening archive %s file %s", vdev->sessionfile,
		vdev->capturefile);

	if (!(vdev->archive = zip_open(vdev->sessionfile, 0, &ret))) {
		sr_err("Failed to open session file '%s': "
		       "zip error %d.", vdev->sessionfile, ret);
		return SR_ERR;
	}

	/* Send header packet to the session bus. */
	std_session_send_df_header(sdi, LOG_PREFIX);

	/* freewheeling source */
	sr_session_source_add(sdi->session, -1, 0, 0, receive_data, (void *)sdi);

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
	struct session_vdev *vdev;

	(void)cb_data;
	vdev = sdi->priv;

	vdev->finished = TRUE;

	return SR_OK;
}

/** @private */
SR_PRIV struct sr_dev_driver session_driver = {
	.name = "virtual-session",
	.longname = "Session-emulating driver",
	.api_version = 1,
	.init = init,
	.cleanup = dev_clear,
	.scan = NULL,
	.dev_list = NULL,
	.dev_clear = dev_clear,
	.config_get = config_get,
	.config_set = config_set,
	.config_list = config_list,
	.dev_open = dev_open,
	.dev_close = dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = dev_acquisition_stop,
	.context = NULL,
};
Commit	Line	Data
7d658874	1	/*
50985c20	2	* This file is part of the libsigrok project.
7d658874	3	*
13d8e03c	4	* Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
7d658874 BV	5	*
	6	* This program is free software: you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation, either version 3 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	18	*/
	19
6ec6c43b	20	#include <config.h>
7d658874 BV	21	#include <sys/types.h>
	22	#include <sys/stat.h>
	23	#include <fcntl.h>
	24	#include <unistd.h>
	25	#include <sys/time.h>
	26	#include <zip.h>
c1aae900	27	#include <libsigrok/libsigrok.h>
45c59c8b	28	#include "libsigrok-internal.h"
7d658874	29
3544f848	30	#define LOG_PREFIX "virtual-session"
a885ce3e	31
7d658874	32	/* size of payloads sent across the session bus */
b4bd7088	33	/** @cond PRIVATE */
8ff6afc9	34	#define CHUNKSIZE (512 * 1024)
b4bd7088	35	/** @endcond */
7d658874	36
102f1239	37	SR_PRIV struct sr_dev_driver session_driver_info;
102f1239	38
bb7ef793	39	struct session_vdev {
40dda2c3	40	char *sessionfile;
7d658874 BV	41	char *capturefile;
	42	struct zip *archive;
	43	struct zip_file *capfile;
cb1e389c	44	int bytes_read;
7d658874 BV	45	uint64_t samplerate;
7d658874 BV	46	int unitsize;
fca75cbb	47	int num_channels;
b317d1bb	48	int num_analog_channels;
906921ba	49	int cur_analog_channel;
f438e0c9	50	int cur_chunk;
aa48adf9	51	gboolean finished;
7d658874 BV	52	};
7d658874 BV	53
f254bc4b	54	static const uint32_t devopts[] = {
68ac991d BV	55	SR_CONF_CAPTUREFILE \| SR_CONF_SET,
68ac991d BV	56	SR_CONF_CAPTURE_UNITSIZE \| SR_CONF_GET \| SR_CONF_SET,
02e49ae5	57	SR_CONF_NUM_LOGIC_CHANNELS \| SR_CONF_SET,
b317d1bb	58	SR_CONF_NUM_ANALOG_CHANNELS \| SR_CONF_SET,
68ac991d	59	SR_CONF_SAMPLERATE \| SR_CONF_GET \| SR_CONF_SET,
02e49ae5	60	SR_CONF_SESSIONFILE \| SR_CONF_SET,
7d658874 BV	61	};
7d658874 BV	62
8d4097ff	63	static gboolean stream_session_data(struct sr_dev_inst *sdi)
7d658874	64	{
bb7ef793	65	struct session_vdev *vdev;
7d658874	66	struct sr_datafeed_packet packet;
9c939c51	67	struct sr_datafeed_logic logic;
f438e0c9	68	struct zip_stat zs;
7d658874	69	int ret, got_data;
f438e0c9 BV	70	char capturefile[16];
f438e0c9 BV	71	void *buf;
7d658874	72
7d658874	73	got_data = FALSE;
102f1239	74	vdev = sdi->priv;
8d4097ff DE	75	if (!vdev->capfile) {
	76	/* No capture file opened yet, or finished with the last
	77	* chunked one. */
	78	if (vdev->cur_chunk == 0) {
	79	/* capturefile is always the unchunked base name. */
	80	if (zip_stat(vdev->archive, vdev->capturefile, 0, &zs) != -1) {
	81	/* No chunks, just a single capture file. */
	82	vdev->cur_chunk = 0;
	83	if (!(vdev->capfile = zip_fopen(vdev->archive,
	84	vdev->capturefile, 0)))
	85	return FALSE;
	86	sr_dbg("Opened %s.", vdev->capturefile);
f438e0c9	87	} else {
8d4097ff DE	88	/* Try as first chunk filename. */
8d4097ff DE	89	snprintf(capturefile, 15, "%s-1", vdev->capturefile);
f438e0c9	90	if (zip_stat(vdev->archive, capturefile, 0, &zs) != -1) {
8d4097ff	91	vdev->cur_chunk = 1;
f438e0c9 BV	92	if (!(vdev->capfile = zip_fopen(vdev->archive,
	93	capturefile, 0)))
	94	return FALSE;
	95	sr_dbg("Opened %s.", capturefile);
	96	} else {
8d4097ff DE	97	sr_err("No capture file '%s' in " "session file '%s'.",
	98	vdev->capturefile, vdev->sessionfile);
	99	return FALSE;
f438e0c9 BV	100	}
f438e0c9 BV	101	}
7d658874	102	} else {
8d4097ff DE	103	/* Capture data is chunked, advance to the next chunk. */
	104	vdev->cur_chunk++;
	105	snprintf(capturefile, 15, "%s-%d", vdev->capturefile,
	106	vdev->cur_chunk);
	107	if (zip_stat(vdev->archive, capturefile, 0, &zs) != -1) {
	108	if (!(vdev->capfile = zip_fopen(vdev->archive,
	109	capturefile, 0)))
	110	return FALSE;
	111	sr_dbg("Opened %s.", capturefile);
906921ba ML	112	} else if (vdev->cur_analog_channel < vdev->num_analog_channels) {
	113	vdev->capturefile = g_strdup_printf("analog-1-%d",
	114	vdev->cur_analog_channel + 1);
	115	vdev->cur_analog_channel++;
	116	vdev->cur_chunk = 0;
	117	return TRUE;
f438e0c9	118	} else {
8d4097ff DE	119	/* We got all the chunks, finish up. */
8d4097ff DE	120	return FALSE;
f438e0c9	121	}
7d658874 BV	122	}
	123	}
	124
8d4097ff DE	125	buf = g_malloc(CHUNKSIZE);
	126
	127	ret = zip_fread(vdev->capfile, buf,
	128	CHUNKSIZE / vdev->unitsize * vdev->unitsize);
	129	if (ret > 0) {
	130	if (ret % vdev->unitsize != 0)
	131	sr_warn("Read size %d not a multiple of the"
	132	" unit size %d.", ret, vdev->unitsize);
	133	got_data = TRUE;
	134	packet.type = SR_DF_LOGIC;
	135	packet.payload = &logic;
	136	logic.length = ret;
	137	logic.unitsize = vdev->unitsize;
	138	logic.data = buf;
	139	vdev->bytes_read += ret;
102f1239	140	sr_session_send(sdi, &packet);
8d4097ff DE	141	} else {
	142	/* done with this capture file */
	143	zip_fclose(vdev->capfile);
	144	vdev->capfile = NULL;
	145	if (vdev->cur_chunk != 0) {
	146	/* There might be more chunks, so don't fall through
	147	* to the SR_DF_END here. */
	148	got_data = TRUE;
	149	}
7d658874	150	}
8d4097ff	151	g_free(buf);
7d658874	152
8d4097ff DE	153	return got_data;
	154	}
	155
	156	static int receive_data(int fd, int revents, void *cb_data)
	157	{
	158	struct sr_dev_inst *sdi;
	159	struct session_vdev *vdev;
	160	struct sr_datafeed_packet packet;
	161
	162	(void)fd;
	163	(void)revents;
	164
	165	sdi = cb_data;
	166	vdev = sdi->priv;
	167
	168	if (!vdev->finished && !stream_session_data(sdi))
	169	vdev->finished = TRUE;
	170	if (!vdev->finished)
	171	return G_SOURCE_CONTINUE;
	172
	173	if (vdev->capfile) {
	174	zip_fclose(vdev->capfile);
	175	vdev->capfile = NULL;
	176	}
	177	if (vdev->archive) {
	178	zip_discard(vdev->archive);
	179	vdev->archive = NULL;
	180	}
	181	packet.type = SR_DF_END;
	182	packet.payload = NULL;
	183	sr_session_send(sdi, &packet);
	184
	185	return G_SOURCE_REMOVE;
7d658874 BV	186	}
	187
	188	/* driver callbacks */
	189
4f840ce9	190	static int init(struct sr_dev_driver di, struct sr_context sr_ctx)
7d658874	191	{
102f1239	192	return std_init(sr_ctx, di, LOG_PREFIX);
7d658874 BV	193	}
7d658874 BV	194
4f840ce9	195	static int dev_clear(const struct sr_dev_driver *di)
7d658874	196	{
102f1239	197	struct drv_context *drvc;
7d658874 BV	198	GSList *l;
7d658874 BV	199
41812aca	200	drvc = di->context;
102f1239	201	for (l = drvc->instances; l; l = l->next)
d3683c42	202	sr_dev_inst_free(l->data);
102f1239 BV	203	g_slist_free(drvc->instances);
102f1239 BV	204	drvc->instances = NULL;
805e9640	205
57ab7d9f	206	return SR_OK;
7d658874 BV	207	}
7d658874 BV	208
6078d2c9	209	static int dev_open(struct sr_dev_inst *sdi)
7d658874	210	{
4f840ce9	211	struct sr_dev_driver *di;
102f1239	212	struct drv_context *drvc;
aa48adf9	213	struct session_vdev *vdev;
b53738ba	214
4f840ce9	215	di = sdi->driver;
41812aca	216	drvc = di->context;
102f1239	217	vdev = g_malloc0(sizeof(struct session_vdev));
aa48adf9	218	sdi->priv = vdev;
102f1239	219	drvc->instances = g_slist_append(drvc->instances, sdi);
7d658874 BV	220
	221	return SR_OK;
	222	}
	223
aa48adf9 BV	224	static int dev_close(struct sr_dev_inst *sdi)
aa48adf9 BV	225	{
8c9d4d67 JH	226	const struct session_vdev *const vdev = sdi->priv;
	227	g_free(vdev->sessionfile);
	228	g_free(vdev->capturefile);
	229
aa48adf9 BV	230	g_free(sdi->priv);
	231	sdi->priv = NULL;
	232
	233	return SR_OK;
	234	}
	235
584560f1	236	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	237	const struct sr_channel_group *cg)
7d658874	238	{
bb7ef793	239	struct session_vdev *vdev;
7d658874	240
53b4680f	241	(void)cg;
8f996b89	242
3f2cd87f UH	243	if (!sdi)
	244	return SR_ERR;
	245
	246	vdev = sdi->priv;
	247
584560f1	248	switch (key) {
123e1313	249	case SR_CONF_SAMPLERATE:
3f2cd87f UH	250	*data = g_variant_new_uint64(vdev->samplerate);
	251	break;
	252	case SR_CONF_CAPTURE_UNITSIZE:
	253	*data = g_variant_new_uint64(vdev->unitsize);
387014de BV	254	break;
387014de BV	255	default:
96ea73db	256	return SR_ERR_NA;
387014de	257	}
7d658874	258
387014de	259	return SR_OK;
7d658874 BV	260	}
7d658874 BV	261
584560f1	262	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	263	const struct sr_channel_group *cg)
7d658874	264	{
bb7ef793	265	struct session_vdev *vdev;
7d658874	266
53b4680f	267	(void)cg;
8f996b89	268
6f4b1868	269	vdev = sdi->priv;
7d658874	270
584560f1	271	switch (key) {
1953564a	272	case SR_CONF_SAMPLERATE:
003595ac	273	vdev->samplerate = g_variant_get_uint64(data);
a885ce3e	274	sr_info("Setting samplerate to %" PRIu64 ".", vdev->samplerate);
7d658874	275	break;
1953564a	276	case SR_CONF_SESSIONFILE:
8c9d4d67	277	g_free(vdev->sessionfile);
003595ac	278	vdev->sessionfile = g_strdup(g_variant_get_string(data, NULL));
a885ce3e	279	sr_info("Setting sessionfile to '%s'.", vdev->sessionfile);
40dda2c3	280	break;
1953564a	281	case SR_CONF_CAPTUREFILE:
8c9d4d67	282	g_free(vdev->capturefile);
003595ac	283	vdev->capturefile = g_strdup(g_variant_get_string(data, NULL));
a885ce3e	284	sr_info("Setting capturefile to '%s'.", vdev->capturefile);
7d658874	285	break;
1953564a	286	case SR_CONF_CAPTURE_UNITSIZE:
003595ac	287	vdev->unitsize = g_variant_get_uint64(data);
7d658874	288	break;
3f239f08	289	case SR_CONF_NUM_LOGIC_CHANNELS:
2c38a41a	290	vdev->num_channels = g_variant_get_int32(data);
7d658874	291	break;
b317d1bb ML	292	case SR_CONF_NUM_ANALOG_CHANNELS:
	293	vdev->num_analog_channels = g_variant_get_int32(data);
	294	break;
7d658874	295	default:
96ea73db	296	return SR_ERR_NA;
7d658874 BV	297	}
	298
	299	return SR_OK;
	300	}
	301
584560f1	302	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	303	const struct sr_channel_group *cg)
9a6517d1	304	{
9a6517d1	305	(void)sdi;
53b4680f	306	(void)cg;
9a6517d1 BV	307
	308	switch (key) {
	309	case SR_CONF_DEVICE_OPTIONS:
584560f1	310	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f254bc4b	311	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
9a6517d1 BV	312	break;
9a6517d1 BV	313	default:
96ea73db	314	return SR_ERR_NA;
9a6517d1 BV	315	}
	316
	317	return SR_OK;
	318	}
	319
6078d2c9	320	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
7d658874	321	{
bb7ef793	322	struct session_vdev *vdev;
ebc34738	323	int ret;
7d658874	324
102f1239	325	(void)cb_data;
7d658874	326
102f1239	327	vdev = sdi->priv;
8c9d4d67	328	vdev->bytes_read = 0;
906921ba	329	vdev->cur_analog_channel = 0;
8c9d4d67 JH	330	vdev->cur_chunk = 0;
	331	vdev->finished = FALSE;
	332
a885ce3e	333	sr_info("Opening archive %s file %s", vdev->sessionfile,
bb7ef793	334	vdev->capturefile);
7d658874	335
40dda2c3	336	if (!(vdev->archive = zip_open(vdev->sessionfile, 0, &ret))) {
a885ce3e	337	sr_err("Failed to open session file '%s': "
9d122af8	338	"zip error %d.", vdev->sessionfile, ret);
7d658874 BV	339	return SR_ERR;
	340	}
	341
4afdfd46	342	/* Send header packet to the session bus. */
102f1239	343	std_session_send_df_header(sdi, LOG_PREFIX);
4afdfd46	344
7d658874	345	/* freewheeling source */
102f1239	346	sr_session_source_add(sdi->session, -1, 0, 0, receive_data, (void *)sdi);
7d658874	347
7d658874 BV	348	return SR_OK;
	349	}
	350
8d4097ff DE	351	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	352	{
	353	struct session_vdev *vdev;
	354
	355	(void)cb_data;
	356	vdev = sdi->priv;
	357
	358	vdev->finished = TRUE;
	359
	360	return SR_OK;
	361	}
	362
b4bd7088	363	/** @private */
c09f0b57	364	SR_PRIV struct sr_dev_driver session_driver = {
a885ce3e	365	.name = "virtual-session",
5097b0d0 UH	366	.longname = "Session-emulating driver",
5097b0d0 UH	367	.api_version = 1,
6078d2c9	368	.init = init,
824fba03	369	.cleanup = dev_clear,
96ea73db UH	370	.scan = NULL,
96ea73db UH	371	.dev_list = NULL,
824fba03	372	.dev_clear = dev_clear,
035a1078 BV	373	.config_get = config_get,
035a1078 BV	374	.config_set = config_set,
9a6517d1	375	.config_list = config_list,
6078d2c9	376	.dev_open = dev_open,
aa48adf9	377	.dev_close = dev_close,
6078d2c9	378	.dev_acquisition_start = dev_acquisition_start,
8d4097ff	379	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	380	.context = NULL,
7d658874	381	};