[libsigrok.git] / hardware / tondaj-sl-814 / api.c

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

#define SERIALCOMM "9600/8e1"

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_CONTINUOUS,
};

SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info;
static struct sr_dev_driver *di = &tondaj_sl_814_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;
	struct sr_serial_dev_inst *serial;

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

	devices = NULL;

	conn = serialcomm = NULL;
	for (l = options; l; l = l->next) {
		if (!(src = l->data)) {
			sr_err("Invalid option data, skipping.");
			continue;
		}
		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;
		default:
			sr_err("Unknown option %d, skipping.", src->key);
			break;
		}
	}
	if (!conn)
		return NULL;
	if (!serialcomm)
		serialcomm = SERIALCOMM;

	if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Tondaj",
				    "SL-814", NULL))) {
		sr_err("Failed to create device instance.");
		return NULL;
	}

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

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

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

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

	sdi->priv = devc;
	sdi->driver = di;
	probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1");
	if (!probe) {
		sr_err("Failed to create probe.");
		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 | SERIAL_NONBLOCK) != 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;

	devc = sdi->priv;

	switch (id) {
	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;

	devc = sdi->priv;
	devc->cb_data = cb_data;

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

	/* Poll every 500ms, or whenever some data comes in. */
	serial = sdi->conn;
	sr_source_add(serial->fd, G_IO_IN, 500,
		      tondaj_sl_814_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 tondaj_sl_814_driver_info = {
	.name = "tondaj-sl-814",
	.longname = "Tondaj SL-814",
	.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 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 <fcntl.h>
	22	#include <glib.h>
	23	#include "libsigrok.h"
	24	#include "libsigrok-internal.h"
	25	#include "protocol.h"
	26
	27	#define SERIALCOMM "9600/8e1"
	28
	29	static const int32_t hwopts[] = {
	30	SR_CONF_CONN,
	31	SR_CONF_SERIALCOMM,
	32	};
	33
	34	static const int32_t hwcaps[] = {
	35	SR_CONF_SOUNDLEVELMETER,
	36	SR_CONF_LIMIT_SAMPLES,
	37	SR_CONF_CONTINUOUS,
	38	};
	39
	40	SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info;
	41	static struct sr_dev_driver *di = &tondaj_sl_814_driver_info;
	42
	43	/* Properly close and free all devices. */
	44	static int clear_instances(void)
	45	{
	46	struct sr_dev_inst *sdi;
	47	struct drv_context *drvc;
	48	struct dev_context *devc;
	49	struct sr_serial_dev_inst *serial;
	50	GSList *l;
	51
	52	if (!(drvc = di->priv))
	53	return SR_OK;
	54
	55	for (l = drvc->instances; l; l = l->next) {
	56	if (!(sdi = l->data))
	57	continue;
	58	if (!(devc = sdi->priv))
	59	continue;
	60	serial = sdi->conn;
	61	sr_serial_dev_inst_free(serial);
	62	sr_dev_inst_free(sdi);
	63	}
	64
	65	g_slist_free(drvc->instances);
	66	drvc->instances = NULL;
	67
	68	return SR_OK;
	69	}
	70
	71	static int hw_init(struct sr_context *sr_ctx)
	72	{
	73	return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
	74	}
	75
	76	static GSList hw_scan(GSList options)
	77	{
	78	struct drv_context *drvc;
	79	struct dev_context *devc;
	80	struct sr_dev_inst *sdi;
	81	struct sr_config *src;
	82	struct sr_probe *probe;
	83	GSList devices, l;
	84	const char conn, serialcomm;
	85	struct sr_serial_dev_inst *serial;
	86
	87	drvc = di->priv;
	88	drvc->instances = NULL;
	89
	90	devices = NULL;
	91
	92	conn = serialcomm = NULL;
	93	for (l = options; l; l = l->next) {
	94	if (!(src = l->data)) {
	95	sr_err("Invalid option data, skipping.");
	96	continue;
	97	}
	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	default:
	106	sr_err("Unknown option %d, skipping.", src->key);
	107	break;
	108	}
	109	}
	110	if (!conn)
	111	return NULL;
	112	if (!serialcomm)
	113	serialcomm = SERIALCOMM;
	114
	115	if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Tondaj",
	116	"SL-814", NULL))) {
	117	sr_err("Failed to create device instance.");
	118	return NULL;
	119	}
	120
	121	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	122	sr_err("Device context malloc failed.");
	123	return NULL;
	124	}
	125
	126	if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
	127	return NULL;
	128
	129	if (serial_open(serial, SERIAL_RDWR \| SERIAL_NONBLOCK) != SR_OK)
	130	return NULL;
	131
	132	sdi->inst_type = SR_INST_SERIAL;
	133	sdi->conn = serial;
	134
	135	sdi->priv = devc;
	136	sdi->driver = di;
	137	probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1");
	138	if (!probe) {
	139	sr_err("Failed to create probe.");
	140	return NULL;
	141	}
	142	sdi->probes = g_slist_append(sdi->probes, probe);
	143	drvc->instances = g_slist_append(drvc->instances, sdi);
	144	devices = g_slist_append(devices, sdi);
	145
	146	return devices;
	147	}
	148
	149	static GSList *hw_dev_list(void)
	150	{
	151	return ((struct drv_context *)(di->priv))->instances;
	152	}
	153
	154	static int hw_dev_open(struct sr_dev_inst *sdi)
	155	{
	156	struct sr_serial_dev_inst *serial;
	157
	158	serial = sdi->conn;
	159	if (serial_open(serial, SERIAL_RDWR \| SERIAL_NONBLOCK) != SR_OK)
	160	return SR_ERR;
	161
	162	sdi->status = SR_ST_ACTIVE;
	163
	164	return SR_OK;
	165	}
	166
	167	static int hw_dev_close(struct sr_dev_inst *sdi)
	168	{
	169	struct sr_serial_dev_inst *serial;
	170
	171	serial = sdi->conn;
	172	if (serial && serial->fd != -1) {
	173	serial_close(serial);
	174	sdi->status = SR_ST_INACTIVE;
	175	}
	176
	177	return SR_OK;
	178	}
	179
	180	static int hw_cleanup(void)
	181	{
	182	clear_instances();
	183
	184	return SR_OK;
	185	}
	186
	187	static int config_set(int id, GVariant data, const struct sr_dev_inst sdi)
	188	{
	189	struct dev_context *devc;
	190
	191	if (sdi->status != SR_ST_ACTIVE)
	192	return SR_ERR_DEV_CLOSED;
	193
	194	devc = sdi->priv;
	195
	196	switch (id) {
	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	devc = sdi->priv;
	240	devc->cb_data = cb_data;
	241
	242	/* Send header packet to the session bus. */
	243	std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
	244
	245	/* Poll every 500ms, or whenever some data comes in. */
	246	serial = sdi->conn;
	247	sr_source_add(serial->fd, G_IO_IN, 500,
	248	tondaj_sl_814_receive_data, (void *)sdi);
	249
	250	return SR_OK;
	251	}
	252
	253	static int hw_dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	254	{
	255	return std_hw_dev_acquisition_stop_serial(sdi, cb_data, hw_dev_close,
	256	sdi->conn, DRIVER_LOG_DOMAIN);
	257	}
	258
	259	SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info = {
	260	.name = "tondaj-sl-814",
	261	.longname = "Tondaj SL-814",
	262	.api_version = 1,
	263	.init = hw_init,
	264	.cleanup = hw_cleanup,
	265	.scan = hw_scan,
	266	.dev_list = hw_dev_list,
	267	.dev_clear = clear_instances,
	268	.config_get = NULL,
	269	.config_set = config_set,
	270	.config_list = config_list,
	271	.dev_open = hw_dev_open,
	272	.dev_close = hw_dev_close,
	273	.dev_acquisition_start = hw_dev_acquisition_start,
	274	.dev_acquisition_stop = hw_dev_acquisition_stop,
	275	.priv = NULL,
	276	};