[libsigrok.git] / hardware / colead-slm / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2012 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 <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "protocol.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>

/* The Colead SL-5868P uses this. */
#define SERIALCOMM "2400/8n1"

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

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

SR_PRIV struct sr_dev_driver colead_slm_driver_info;
static struct sr_dev_driver *di = &colead_slm_driver_info;

/* Properly close and free all devices. */
static int clear_instances(void)
{
	struct sr_dev_inst *sdi;
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_serial_dev_inst *serial;
	GSList *l;

	if (!(drvc = di->priv))
		return SR_OK;

	for (l = drvc->instances; l; l = l->next) {
		if (!(sdi = l->data))
			continue;
		if (!(devc = sdi->priv))
			continue;
		serial = sdi->conn;
		sr_serial_dev_inst_free(serial);
		sr_dev_inst_free(sdi);
	}
	g_slist_free(drvc->instances);
	drvc->instances = NULL;

	return SR_OK;
}

static int hw_init(struct sr_context *sr_ctx)
{
	return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
}

static GSList *hw_scan(GSList *options)
{
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_dev_inst *sdi;
	struct sr_config *src;
	struct sr_probe *probe;
	GSList *devices, *l;
	const char *conn, *serialcomm;

	drvc = di->priv;
	drvc->instances = NULL;

	devices = NULL;

	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)
		serialcomm = SERIALCOMM;

	if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Colead",
			"SL-5868P", NULL)))
		return NULL;

	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
		sr_dbg("Device context malloc failed.");
		return NULL;
	}

	if (!(sdi->conn = sr_serial_dev_inst_new(conn, serialcomm)))
		return NULL;

	sdi->inst_type = SR_INST_SERIAL;
	sdi->priv = devc;
	sdi->driver = di;
	if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
		return NULL;
	sdi->probes = g_slist_append(sdi->probes, probe);
	drvc->instances = g_slist_append(drvc->instances, sdi);
	devices = g_slist_append(devices, sdi);

	return devices;
}

static GSList *hw_dev_list(void)
{
	return ((struct drv_context *)(di->priv))->instances;
}

static int hw_dev_open(struct sr_dev_inst *sdi)
{
	struct sr_serial_dev_inst *serial;

	serial = sdi->conn;
	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
		return SR_ERR;

	sdi->status = SR_ST_ACTIVE;

	return SR_OK;
}

static int hw_dev_close(struct sr_dev_inst *sdi)
{
	struct sr_serial_dev_inst *serial;

	serial = sdi->conn;
	if (serial && serial->fd != -1) {
		serial_close(serial);
		sdi->status = SR_ST_INACTIVE;
	}

	return SR_OK;
}

static int hw_cleanup(void)
{
	clear_instances();

	return SR_OK;
}

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

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

	if (!(devc = sdi->priv)) {
		sr_err("sdi->priv was NULL.");
		return SR_ERR_BUG;
	}

	switch (id) {
	case SR_CONF_LIMIT_MSEC:
		/* TODO: not yet implemented */
		if (g_variant_get_uint64(data) == 0) {
			sr_err("LIMIT_MSEC can't be 0.");
			return SR_ERR;
		}
		devc->limit_msec = g_variant_get_uint64(data);;
		sr_dbg("Setting time limit to %" PRIu64 "ms.",
		       devc->limit_msec);
		break;
	case SR_CONF_LIMIT_SAMPLES:
		devc->limit_samples = g_variant_get_uint64(data);
		sr_dbg("Setting sample limit to %" PRIu64 ".",
		       devc->limit_samples);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
{

	(void)sdi;

	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 hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
				    void *cb_data)
{
	struct dev_context *devc;
	struct sr_serial_dev_inst *serial;

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

	if (!(devc = sdi->priv)) {
		sr_err("sdi->priv was NULL.");
		return SR_ERR_BUG;
	}

	devc->cb_data = cb_data;

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

	/* Poll every 150ms, or whenever some data comes in. */
	serial = sdi->conn;
	sr_source_add(serial->fd, G_IO_IN, 150, colead_slm_receive_data,
			(void *)sdi);

	return SR_OK;
}

static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
	return std_hw_dev_acquisition_stop_serial(sdi, cb_data, hw_dev_close,
	       sdi->conn, DRIVER_LOG_DOMAIN);
}

SR_PRIV struct sr_dev_driver colead_slm_driver_info = {
	.name = "colead-slm",
	.longname = "Colead SLM",
	.api_version = 1,
	.init = hw_init,
	.cleanup = hw_cleanup,
	.scan = hw_scan,
	.dev_list = hw_dev_list,
	.dev_clear = clear_instances,
	.config_get = NULL,
	.config_set = config_set,
	.config_list = config_list,
	.dev_open = hw_dev_open,
	.dev_close = hw_dev_close,
	.dev_acquisition_start = hw_dev_acquisition_start,
	.dev_acquisition_stop = hw_dev_acquisition_stop,
	.priv = NULL,
};
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
	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
	20	#include <glib.h>
	21	#include "libsigrok.h"
	22	#include "libsigrok-internal.h"
	23	#include "protocol.h"
	24	#include <sys/types.h>
	25	#include <sys/stat.h>
	26	#include <fcntl.h>
	27	#include <errno.h>
	28	#include <string.h>
	29
	30	/* The Colead SL-5868P uses this. */
	31	#define SERIALCOMM "2400/8n1"
	32
	33	static const int32_t hwopts[] = {
	34	SR_CONF_CONN,
	35	SR_CONF_SERIALCOMM,
	36	};
	37
	38	static const int32_t hwcaps[] = {
	39	SR_CONF_SOUNDLEVELMETER,
	40	SR_CONF_LIMIT_SAMPLES,
	41	SR_CONF_LIMIT_MSEC,
	42	SR_CONF_CONTINUOUS,
	43	};
	44
	45	SR_PRIV struct sr_dev_driver colead_slm_driver_info;
	46	static struct sr_dev_driver *di = &colead_slm_driver_info;
	47
	48	/* Properly close and free all devices. */
	49	static int clear_instances(void)
	50	{
	51	struct sr_dev_inst *sdi;
	52	struct drv_context *drvc;
	53	struct dev_context *devc;
	54	struct sr_serial_dev_inst *serial;
	55	GSList *l;
	56
	57	if (!(drvc = di->priv))
	58	return SR_OK;
	59
	60	for (l = drvc->instances; l; l = l->next) {
	61	if (!(sdi = l->data))
	62	continue;
	63	if (!(devc = sdi->priv))
	64	continue;
	65	serial = sdi->conn;
	66	sr_serial_dev_inst_free(serial);
	67	sr_dev_inst_free(sdi);
	68	}
	69	g_slist_free(drvc->instances);
	70	drvc->instances = NULL;
	71
	72	return SR_OK;
	73	}
	74
	75	static int hw_init(struct sr_context *sr_ctx)
	76	{
	77	return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
	78	}
	79
	80	static GSList hw_scan(GSList options)
	81	{
	82	struct drv_context *drvc;
	83	struct dev_context *devc;
	84	struct sr_dev_inst *sdi;
	85	struct sr_config *src;
	86	struct sr_probe *probe;
	87	GSList devices, l;
	88	const char conn, serialcomm;
	89
	90	drvc = di->priv;
	91	drvc->instances = NULL;
	92
	93	devices = NULL;
	94
	95	conn = serialcomm = NULL;
	96	for (l = options; l; l = l->next) {
	97	src = l->data;
	98	switch (src->key) {
	99	case SR_CONF_CONN:
	100	conn = g_variant_get_string(src->data, NULL);
	101	break;
	102	case SR_CONF_SERIALCOMM:
	103	serialcomm = g_variant_get_string(src->data, NULL);
	104	break;
	105	}
	106	}
	107	if (!conn)
	108	return NULL;
	109	if (!serialcomm)
	110	serialcomm = SERIALCOMM;
	111
	112	if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Colead",
	113	"SL-5868P", NULL)))
	114	return NULL;
	115
	116	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	117	sr_dbg("Device context malloc failed.");
	118	return NULL;
	119	}
	120
	121	if (!(sdi->conn = sr_serial_dev_inst_new(conn, serialcomm)))
	122	return NULL;
	123
	124	sdi->inst_type = SR_INST_SERIAL;
	125	sdi->priv = devc;
	126	sdi->driver = di;
	127	if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
	128	return NULL;
	129	sdi->probes = g_slist_append(sdi->probes, probe);
	130	drvc->instances = g_slist_append(drvc->instances, sdi);
	131	devices = g_slist_append(devices, sdi);
	132
	133	return devices;
	134	}
	135
	136	static GSList *hw_dev_list(void)
	137	{
	138	return ((struct drv_context *)(di->priv))->instances;
	139	}
	140
	141	static int hw_dev_open(struct sr_dev_inst *sdi)
	142	{
	143	struct sr_serial_dev_inst *serial;
	144
	145	serial = sdi->conn;
	146	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	147	return SR_ERR;
	148
	149	sdi->status = SR_ST_ACTIVE;
	150
	151	return SR_OK;
	152	}
	153
	154	static int hw_dev_close(struct sr_dev_inst *sdi)
	155	{
	156	struct sr_serial_dev_inst *serial;
	157
	158	serial = sdi->conn;
	159	if (serial && serial->fd != -1) {
	160	serial_close(serial);
	161	sdi->status = SR_ST_INACTIVE;
	162	}
	163
	164	return SR_OK;
	165	}
	166
	167	static int hw_cleanup(void)
	168	{
	169	clear_instances();
	170
	171	return SR_OK;
	172	}
	173
	174	static int config_set(int id, GVariant data, const struct sr_dev_inst sdi)
	175	{
	176	struct dev_context *devc;
	177
	178	if (sdi->status != SR_ST_ACTIVE)
	179	return SR_ERR_DEV_CLOSED;
	180
	181	if (!(devc = sdi->priv)) {
	182	sr_err("sdi->priv was NULL.");
	183	return SR_ERR_BUG;
	184	}
	185
	186	switch (id) {
	187	case SR_CONF_LIMIT_MSEC:
	188	/* TODO: not yet implemented */
	189	if (g_variant_get_uint64(data) == 0) {
	190	sr_err("LIMIT_MSEC can't be 0.");
	191	return SR_ERR;
	192	}
	193	devc->limit_msec = g_variant_get_uint64(data);;
	194	sr_dbg("Setting time limit to %" PRIu64 "ms.",
	195	devc->limit_msec);
	196	break;
	197	case SR_CONF_LIMIT_SAMPLES:
	198	devc->limit_samples = g_variant_get_uint64(data);
	199	sr_dbg("Setting sample limit to %" PRIu64 ".",
	200	devc->limit_samples);
	201	break;
	202	default:
	203	return SR_ERR_NA;
	204	}
	205
	206	return SR_OK;
	207	}
	208
	209	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi)
	210	{
	211
	212	(void)sdi;
	213
	214	switch (key) {
	215	case SR_CONF_SCAN_OPTIONS:
	216	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	217	hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
	218	break;
	219	case SR_CONF_DEVICE_OPTIONS:
	220	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	221	hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
	222	break;
	223	default:
	224	return SR_ERR_NA;
	225	}
	226
	227	return SR_OK;
	228	}
	229
	230	static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
	231	void *cb_data)
	232	{
	233	struct dev_context *devc;
	234	struct sr_serial_dev_inst *serial;
	235
	236	if (sdi->status != SR_ST_ACTIVE)
	237	return SR_ERR_DEV_CLOSED;
	238
	239	if (!(devc = sdi->priv)) {
	240	sr_err("sdi->priv was NULL.");
	241	return SR_ERR_BUG;
	242	}
	243
	244	devc->cb_data = cb_data;
	245
	246	/* Send header packet to the session bus. */
	247	std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
	248
	249	/* Poll every 150ms, or whenever some data comes in. */
	250	serial = sdi->conn;
	251	sr_source_add(serial->fd, G_IO_IN, 150, colead_slm_receive_data,
	252	(void *)sdi);
	253
	254	return SR_OK;
	255	}
	256
	257	static int hw_dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	258	{
	259	return std_hw_dev_acquisition_stop_serial(sdi, cb_data, hw_dev_close,
	260	sdi->conn, DRIVER_LOG_DOMAIN);
	261	}
	262
	263	SR_PRIV struct sr_dev_driver colead_slm_driver_info = {
	264	.name = "colead-slm",
	265	.longname = "Colead SLM",
	266	.api_version = 1,
	267	.init = hw_init,
	268	.cleanup = hw_cleanup,
	269	.scan = hw_scan,
	270	.dev_list = hw_dev_list,
	271	.dev_clear = clear_instances,
	272	.config_get = NULL,
	273	.config_set = config_set,
	274	.config_list = config_list,
	275	.dev_open = hw_dev_open,
	276	.dev_close = hw_dev_close,
	277	.dev_acquisition_start = hw_dev_acquisition_start,
	278	.dev_acquisition_stop = hw_dev_acquisition_stop,
	279	.priv = NULL,
	280	};