[libsigrok.git] / hardware / center-3xx / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#include "protocol.h"

static const int32_t hwopts[] = {
	SR_CONF_CONN,
	SR_CONF_SERIALCOMM,
};

static const int32_t hwcaps[] = {
	SR_CONF_THERMOMETER,
	SR_CONF_LIMIT_SAMPLES,
	SR_CONF_LIMIT_MSEC,
	SR_CONF_CONTINUOUS,
};

static const char *channel_names[] = {
	"T1", "T2", "T3", "T4",
	NULL,
};

SR_PRIV struct sr_dev_driver center_309_driver_info;
SR_PRIV struct sr_dev_driver voltcraft_k204_driver_info;

SR_PRIV const struct center_dev_info center_devs[] = {
	{
		"Center", "309", "9600/8n1", 4, 32000, 45,
		center_3xx_packet_valid,
		&center_309_driver_info, receive_data_CENTER_309,
	},
	{
		"Voltcraft", "K204", "9600/8n1", 4, 32000, 45,
		center_3xx_packet_valid,
		&voltcraft_k204_driver_info, receive_data_VOLTCRAFT_K204,
	},
};

static int dev_clear(int idx)
{
	return std_dev_clear(center_devs[idx].di, NULL);
}

static int init(struct sr_context *sr_ctx, int idx)
{
	sr_dbg("Selected '%s' subdriver.", center_devs[idx].di->name);

	return std_init(sr_ctx, center_devs[idx].di, LOG_PREFIX);
}

static GSList *center_scan(const char *conn, const char *serialcomm, int idx)
{
	int i;
	struct sr_dev_inst *sdi;
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_channel *ch;
	struct sr_serial_dev_inst *serial;
	GSList *devices;

	if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
		return NULL;

	if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
		return NULL;

	drvc = center_devs[idx].di->priv;
	devices = NULL;
	serial_flush(serial);

	sr_info("Found device on port %s.", conn);

	if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, center_devs[idx].vendor,
				    center_devs[idx].device, NULL)))
		goto scan_cleanup;

	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
		sr_err("Device context malloc failed.");
		goto scan_cleanup;
	}

	sdi->inst_type = SR_INST_SERIAL;
	sdi->conn = serial;

	sdi->priv = devc;
	sdi->driver = center_devs[idx].di;

	for (i = 0; i <  center_devs[idx].num_channels; i++) {
		if (!(ch = sr_probe_new(i, SR_PROBE_ANALOG,
					   TRUE, channel_names[i])))
			goto scan_cleanup;
		sdi->channels = g_slist_append(sdi->channels, ch);
	}

	drvc->instances = g_slist_append(drvc->instances, sdi);
	devices = g_slist_append(devices, sdi);

scan_cleanup:
	serial_close(serial);

	return devices;
}

static GSList *scan(GSList *options, int idx)
{
	struct sr_config *src;
	GSList *l, *devices;
	const char *conn, *serialcomm;

	conn = serialcomm = NULL;
	for (l = options; l; l = l->next) {
		src = l->data;
		switch (src->key) {
		case SR_CONF_CONN:
			conn = g_variant_get_string(src->data, NULL);
			break;
		case SR_CONF_SERIALCOMM:
			serialcomm = g_variant_get_string(src->data, NULL);
			break;
		}
	}
	if (!conn)
		return NULL;

	if (serialcomm) {
		/* Use the provided comm specs. */
		devices = center_scan(conn, serialcomm, idx);
	} else {
		/* Try the default. */
		devices = center_scan(conn, center_devs[idx].conn, idx);
	}

	return devices;
}

static GSList *dev_list(int idx)
{
	return ((struct drv_context *)(center_devs[idx].di->priv))->instances;
}

static int cleanup(int idx)
{
	return dev_clear(idx);
}

static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	struct dev_context *devc;

	(void)cg;

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	devc = sdi->priv;

	switch (id) {
	case SR_CONF_LIMIT_SAMPLES:
		if (g_variant_get_uint64(data) == 0)
			return SR_ERR_ARG;
		devc->limit_samples = g_variant_get_uint64(data);
		break;
	case SR_CONF_LIMIT_MSEC:
		if (g_variant_get_uint64(data) == 0)
			return SR_ERR_ARG;
		devc->limit_msec = g_variant_get_uint64(data);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

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

	switch (key) {
	case SR_CONF_SCAN_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
				hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
		break;
	case SR_CONF_DEVICE_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
				hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi,
				    void *cb_data, int idx)
{
	struct dev_context *devc;
	struct sr_serial_dev_inst *serial;

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	devc = sdi->priv;
	devc->cb_data = cb_data;
	devc->num_samples = 0;
	devc->starttime = g_get_monotonic_time();

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

	/* Poll every 500ms, or whenever some data comes in. */
	serial = sdi->conn;
	serial_source_add(serial, G_IO_IN, 500,
		      center_devs[idx].receive_data, (void *)sdi);

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
	return std_serial_dev_acquisition_stop(sdi, cb_data,
			std_serial_dev_close, sdi->conn, LOG_PREFIX);
}

/* Driver-specific API function wrappers */
#define HW_INIT(X) \
static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); }
#define HW_CLEANUP(X) \
static int cleanup_##X(void) { return cleanup(X); }
#define HW_SCAN(X) \
static GSList *scan_##X(GSList *options) { return scan(options, X); }
#define HW_DEV_LIST(X) \
static GSList *dev_list_##X(void) { return dev_list(X); }
#define HW_DEV_CLEAR(X) \
static int dev_clear_##X(void) { return dev_clear(X); }
#define HW_DEV_ACQUISITION_START(X) \
static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \
void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); }

/* Driver structs and API function wrappers */
#define DRV(ID, ID_UPPER, NAME, LONGNAME) \
HW_INIT(ID_UPPER) \
HW_CLEANUP(ID_UPPER) \
HW_SCAN(ID_UPPER) \
HW_DEV_LIST(ID_UPPER) \
HW_DEV_CLEAR(ID_UPPER) \
HW_DEV_ACQUISITION_START(ID_UPPER) \
SR_PRIV struct sr_dev_driver ID##_driver_info = { \
	.name = NAME, \
	.longname = LONGNAME, \
	.api_version = 1, \
	.init = init_##ID_UPPER, \
	.cleanup = cleanup_##ID_UPPER, \
	.scan = scan_##ID_UPPER, \
	.dev_list = dev_list_##ID_UPPER, \
	.dev_clear = dev_clear_##ID_UPPER, \
	.config_get = NULL, \
	.config_set = config_set, \
	.config_list = config_list, \
	.dev_open = std_serial_dev_open, \
	.dev_close = std_serial_dev_close, \
	.dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
	.dev_acquisition_stop = dev_acquisition_stop, \
	.priv = NULL, \
};

DRV(center_309, CENTER_309, "center-309", "Center 309")
DRV(voltcraft_k204, VOLTCRAFT_K204, "voltcraft-k204", "Voltcraft K204")
Commit	Line	Data
4433145f UH	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
	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 2 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, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#include "protocol.h"
	22
4a8bbed7 UH	23	static const int32_t hwopts[] = {
	24	SR_CONF_CONN,
	25	SR_CONF_SERIALCOMM,
	26	};
	27
	28	static const int32_t hwcaps[] = {
	29	SR_CONF_THERMOMETER,
	30	SR_CONF_LIMIT_SAMPLES,
	31	SR_CONF_LIMIT_MSEC,
	32	SR_CONF_CONTINUOUS,
	33	};
	34
ba7dd8bb	35	static const char *channel_names[] = {
4a8bbed7 UH	36	"T1", "T2", "T3", "T4",
	37	NULL,
	38	};
	39
	40	SR_PRIV struct sr_dev_driver center_309_driver_info;
	41	SR_PRIV struct sr_dev_driver voltcraft_k204_driver_info;
	42
	43	SR_PRIV const struct center_dev_info center_devs[] = {
	44	{
	45	"Center", "309", "9600/8n1", 4, 32000, 45,
	46	center_3xx_packet_valid,
	47	&center_309_driver_info, receive_data_CENTER_309,
	48	},
	49	{
	50	"Voltcraft", "K204", "9600/8n1", 4, 32000, 45,
	51	center_3xx_packet_valid,
	52	&voltcraft_k204_driver_info, receive_data_VOLTCRAFT_K204,
	53	},
	54	};
4433145f	55
4a8bbed7	56	static int dev_clear(int idx)
4433145f	57	{
4a8bbed7	58	return std_dev_clear(center_devs[idx].di, NULL);
4433145f UH	59	}
4433145f UH	60
4a8bbed7	61	static int init(struct sr_context *sr_ctx, int idx)
4433145f	62	{
4a8bbed7 UH	63	sr_dbg("Selected '%s' subdriver.", center_devs[idx].di->name);
	64
	65	return std_init(sr_ctx, center_devs[idx].di, LOG_PREFIX);
	66	}
	67
	68	static GSList center_scan(const char conn, const char *serialcomm, int idx)
	69	{
	70	int i;
	71	struct sr_dev_inst *sdi;
4433145f	72	struct drv_context *drvc;
4a8bbed7	73	struct dev_context *devc;
ba7dd8bb	74	struct sr_channel *ch;
4a8bbed7	75	struct sr_serial_dev_inst *serial;
4433145f UH	76	GSList *devices;
4433145f UH	77
4a8bbed7 UH	78	if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
	79	return NULL;
	80
	81	if (serial_open(serial, SERIAL_RDWR \| SERIAL_NONBLOCK) != SR_OK)
	82	return NULL;
4433145f	83
4a8bbed7	84	drvc = center_devs[idx].di->priv;
4433145f	85	devices = NULL;
4a8bbed7 UH	86	serial_flush(serial);
	87
	88	sr_info("Found device on port %s.", conn);
	89
	90	if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, center_devs[idx].vendor,
	91	center_devs[idx].device, NULL)))
	92	goto scan_cleanup;
	93
	94	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	95	sr_err("Device context malloc failed.");
	96	goto scan_cleanup;
	97	}
	98
	99	sdi->inst_type = SR_INST_SERIAL;
	100	sdi->conn = serial;
	101
	102	sdi->priv = devc;
	103	sdi->driver = center_devs[idx].di;
	104
	105	for (i = 0; i < center_devs[idx].num_channels; i++) {
ba7dd8bb UH	106	if (!(ch = sr_probe_new(i, SR_PROBE_ANALOG,
ba7dd8bb UH	107	TRUE, channel_names[i])))
4a8bbed7	108	goto scan_cleanup;
ba7dd8bb	109	sdi->channels = g_slist_append(sdi->channels, ch);
4a8bbed7 UH	110	}
	111
	112	drvc->instances = g_slist_append(drvc->instances, sdi);
	113	devices = g_slist_append(devices, sdi);
	114
	115	scan_cleanup:
	116	serial_close(serial);
4433145f UH	117
	118	return devices;
	119	}
	120
4a8bbed7	121	static GSList scan(GSList options, int idx)
4433145f	122	{
4a8bbed7 UH	123	struct sr_config *src;
	124	GSList l, devices;
	125	const char conn, serialcomm;
	126
	127	conn = serialcomm = NULL;
	128	for (l = options; l; l = l->next) {
	129	src = l->data;
	130	switch (src->key) {
	131	case SR_CONF_CONN:
	132	conn = g_variant_get_string(src->data, NULL);
	133	break;
	134	case SR_CONF_SERIALCOMM:
	135	serialcomm = g_variant_get_string(src->data, NULL);
	136	break;
	137	}
	138	}
	139	if (!conn)
	140	return NULL;
	141
	142	if (serialcomm) {
	143	/* Use the provided comm specs. */
	144	devices = center_scan(conn, serialcomm, idx);
	145	} else {
	146	/* Try the default. */
	147	devices = center_scan(conn, center_devs[idx].conn, idx);
	148	}
	149
	150	return devices;
4433145f UH	151	}
4433145f UH	152
4a8bbed7	153	static GSList *dev_list(int idx)
4433145f	154	{
4a8bbed7	155	return ((struct drv_context *)(center_devs[idx].di->priv))->instances;
4433145f UH	156	}
4433145f UH	157
4a8bbed7	158	static int cleanup(int idx)
4433145f	159	{
4a8bbed7	160	return dev_clear(idx);
4433145f UH	161	}
4433145f UH	162
d3c74a6f	163	static int config_set(int id, GVariant data, const struct sr_dev_inst sdi,
53b4680f	164	const struct sr_channel_group *cg)
4433145f	165	{
4a8bbed7	166	struct dev_context *devc;
4433145f	167
53b4680f	168	(void)cg;
d3c74a6f	169
4433145f UH	170	if (sdi->status != SR_ST_ACTIVE)
	171	return SR_ERR_DEV_CLOSED;
	172
4a8bbed7 UH	173	devc = sdi->priv;
	174
	175	switch (id) {
	176	case SR_CONF_LIMIT_SAMPLES:
	177	if (g_variant_get_uint64(data) == 0)
	178	return SR_ERR_ARG;
	179	devc->limit_samples = g_variant_get_uint64(data);
	180	break;
	181	case SR_CONF_LIMIT_MSEC:
	182	if (g_variant_get_uint64(data) == 0)
	183	return SR_ERR_ARG;
	184	devc->limit_msec = g_variant_get_uint64(data);
	185	break;
4433145f	186	default:
4a8bbed7	187	return SR_ERR_NA;
4433145f UH	188	}
4433145f UH	189
4a8bbed7	190	return SR_OK;
4433145f UH	191	}
4433145f UH	192
d3c74a6f	193	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	194	const struct sr_channel_group *cg)
4433145f	195	{
4433145f	196	(void)sdi;
53b4680f	197	(void)cg;
4433145f	198
4433145f	199	switch (key) {
4a8bbed7 UH	200	case SR_CONF_SCAN_OPTIONS:
	201	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	202	hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
	203	break;
	204	case SR_CONF_DEVICE_OPTIONS:
	205	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	206	hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
	207	break;
4433145f UH	208	default:
	209	return SR_ERR_NA;
	210	}
	211
4a8bbed7	212	return SR_OK;
4433145f UH	213	}
	214
	215	static int dev_acquisition_start(const struct sr_dev_inst *sdi,
4a8bbed7	216	void *cb_data, int idx)
4433145f	217	{
4a8bbed7 UH	218	struct dev_context *devc;
4a8bbed7 UH	219	struct sr_serial_dev_inst *serial;
4433145f UH	220
	221	if (sdi->status != SR_ST_ACTIVE)
	222	return SR_ERR_DEV_CLOSED;
	223
4a8bbed7 UH	224	devc = sdi->priv;
	225	devc->cb_data = cb_data;
	226	devc->num_samples = 0;
	227	devc->starttime = g_get_monotonic_time();
	228
	229	/* Send header packet to the session bus. */
	230	std_session_send_df_header(cb_data, LOG_PREFIX);
	231
	232	/* Poll every 500ms, or whenever some data comes in. */
	233	serial = sdi->conn;
abc4b335	234	serial_source_add(serial, G_IO_IN, 500,
4a8bbed7 UH	235	center_devs[idx].receive_data, (void *)sdi);
4a8bbed7 UH	236
4433145f UH	237	return SR_OK;
	238	}
	239
	240	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	241	{
d43b0908 BV	242	return std_serial_dev_acquisition_stop(sdi, cb_data,
d43b0908 BV	243	std_serial_dev_close, sdi->conn, LOG_PREFIX);
4433145f UH	244	}
4433145f UH	245
4a8bbed7 UH	246	/* Driver-specific API function wrappers */
	247	#define HW_INIT(X) \
	248	static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); }
	249	#define HW_CLEANUP(X) \
	250	static int cleanup_##X(void) { return cleanup(X); }
	251	#define HW_SCAN(X) \
	252	static GSList scan_##X(GSList options) { return scan(options, X); }
	253	#define HW_DEV_LIST(X) \
	254	static GSList *dev_list_##X(void) { return dev_list(X); }
	255	#define HW_DEV_CLEAR(X) \
	256	static int dev_clear_##X(void) { return dev_clear(X); }
	257	#define HW_DEV_ACQUISITION_START(X) \
	258	static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \
	259	void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); }
	260
	261	/* Driver structs and API function wrappers */
	262	#define DRV(ID, ID_UPPER, NAME, LONGNAME) \
	263	HW_INIT(ID_UPPER) \
	264	HW_CLEANUP(ID_UPPER) \
	265	HW_SCAN(ID_UPPER) \
	266	HW_DEV_LIST(ID_UPPER) \
	267	HW_DEV_CLEAR(ID_UPPER) \
	268	HW_DEV_ACQUISITION_START(ID_UPPER) \
	269	SR_PRIV struct sr_dev_driver ID##_driver_info = { \
	270	.name = NAME, \
	271	.longname = LONGNAME, \
	272	.api_version = 1, \
	273	.init = init_##ID_UPPER, \
	274	.cleanup = cleanup_##ID_UPPER, \
	275	.scan = scan_##ID_UPPER, \
	276	.dev_list = dev_list_##ID_UPPER, \
	277	.dev_clear = dev_clear_##ID_UPPER, \
	278	.config_get = NULL, \
	279	.config_set = config_set, \
	280	.config_list = config_list, \
854434de	281	.dev_open = std_serial_dev_open, \
bf2c987f	282	.dev_close = std_serial_dev_close, \
4a8bbed7 UH	283	.dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
	284	.dev_acquisition_stop = dev_acquisition_stop, \
	285	.priv = NULL, \
4433145f	286	};
4a8bbed7 UH	287
	288	DRV(center_309, CENTER_309, "center-309", "Center 309")
	289	DRV(voltcraft_k204, VOLTCRAFT_K204, "voltcraft-k204", "Voltcraft K204")