[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;
	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;
		sr_serial_dev_inst_free(devc->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) {
		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 (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm)))
		return NULL;

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

	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 dev_context *devc;

	devc = sdi->priv;

	if (serial_open(devc->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 dev_context *devc;

	devc = sdi->priv;

	if (devc->serial && devc->serial->fd != -1) {
		serial_close(devc->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;

	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. */
	sr_source_add(devc->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,
	       ((struct dev_context *)(sdi->priv))->serial, 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	GSList *l;
	50
	51	if (!(drvc = di->priv))
	52	return SR_OK;
	53
	54	for (l = drvc->instances; l; l = l->next) {
	55	if (!(sdi = l->data))
	56	continue;
	57	if (!(devc = sdi->priv))
	58	continue;
	59	sr_serial_dev_inst_free(devc->serial);
	60	sr_dev_inst_free(sdi);
	61	}
	62
	63	g_slist_free(drvc->instances);
	64	drvc->instances = NULL;
	65
	66	return SR_OK;
	67	}
	68
	69	static int hw_init(struct sr_context *sr_ctx)
	70	{
	71	return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
	72	}
	73
	74	static GSList hw_scan(GSList options)
	75	{
	76	struct drv_context *drvc;
	77	struct dev_context *devc;
	78	struct sr_dev_inst *sdi;
	79	struct sr_config *src;
	80	struct sr_probe *probe;
	81	GSList devices, l;
	82	const char conn, serialcomm;
	83
	84	drvc = di->priv;
	85	drvc->instances = NULL;
	86
	87	devices = NULL;
	88
	89	conn = serialcomm = NULL;
	90	for (l = options; l; l = l->next) {
	91	if (!(src = l->data)) {
	92	sr_err("Invalid option data, skipping.");
	93	continue;
	94	}
	95	switch (src->key) {
	96	case SR_CONF_CONN:
	97	conn = g_variant_get_string(src->data, NULL);
	98	break;
	99	case SR_CONF_SERIALCOMM:
	100	serialcomm = g_variant_get_string(src->data, NULL);
	101	break;
	102	default:
	103	sr_err("Unknown option %d, skipping.", src->key);
	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, "Tondaj",
	113	"SL-814", NULL))) {
	114	sr_err("Failed to create device instance.");
	115	return NULL;
	116	}
	117
	118	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	119	sr_err("Device context malloc failed.");
	120	return NULL;
	121	}
	122
	123	if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm)))
	124	return NULL;
	125
	126	if (serial_open(devc->serial, SERIAL_RDWR \| SERIAL_NONBLOCK) != SR_OK)
	127	return NULL;
	128
	129	sdi->priv = devc;
	130	sdi->driver = di;
	131	probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1");
	132	if (!probe) {
	133	sr_err("Failed to create probe.");
	134	return NULL;
	135	}
	136	sdi->probes = g_slist_append(sdi->probes, probe);
	137	drvc->instances = g_slist_append(drvc->instances, sdi);
	138	devices = g_slist_append(devices, sdi);
	139
	140	return devices;
	141	}
	142
	143	static GSList *hw_dev_list(void)
	144	{
	145	return ((struct drv_context *)(di->priv))->instances;
	146	}
	147
	148	static int hw_dev_open(struct sr_dev_inst *sdi)
	149	{
	150	struct dev_context *devc;
	151
	152	devc = sdi->priv;
	153
	154	if (serial_open(devc->serial, SERIAL_RDWR \| SERIAL_NONBLOCK) != SR_OK)
	155	return SR_ERR;
	156
	157	sdi->status = SR_ST_ACTIVE;
	158
	159	return SR_OK;
	160	}
	161
	162	static int hw_dev_close(struct sr_dev_inst *sdi)
	163	{
	164	struct dev_context *devc;
	165
	166	devc = sdi->priv;
	167
	168	if (devc->serial && devc->serial->fd != -1) {
	169	serial_close(devc->serial);
	170	sdi->status = SR_ST_INACTIVE;
	171	}
	172
	173	return SR_OK;
	174	}
	175
	176	static int hw_cleanup(void)
	177	{
	178	clear_instances();
	179
	180	return SR_OK;
	181	}
	182
	183	static int config_set(int id, GVariant data, const struct sr_dev_inst sdi)
	184	{
	185	struct dev_context *devc;
	186
	187	if (sdi->status != SR_ST_ACTIVE)
	188	return SR_ERR_DEV_CLOSED;
	189
	190	devc = sdi->priv;
	191
	192	switch (id) {
	193	case SR_CONF_LIMIT_SAMPLES:
	194	devc->limit_samples = g_variant_get_uint64(data);
	195	sr_dbg("Setting sample limit to %" PRIu64 ".",
	196	devc->limit_samples);
	197	break;
	198	default:
	199	return SR_ERR_NA;
	200	}
	201
	202	return SR_OK;
	203	}
	204
	205	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi)
	206	{
	207
	208	(void)sdi;
	209
	210	switch (key) {
	211	case SR_CONF_SCAN_OPTIONS:
	212	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	213	hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
	214	break;
	215	case SR_CONF_DEVICE_OPTIONS:
	216	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	217	hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
	218	break;
	219	default:
	220	return SR_ERR_NA;
	221	}
	222
	223	return SR_OK;
	224	}
	225
	226	static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
	227	void *cb_data)
	228	{
	229	struct dev_context *devc;
	230
	231	if (sdi->status != SR_ST_ACTIVE)
	232	return SR_ERR_DEV_CLOSED;
	233
	234	devc = sdi->priv;
	235	devc->cb_data = cb_data;
	236
	237	/* Send header packet to the session bus. */
	238	std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
	239
	240	/* Poll every 500ms, or whenever some data comes in. */
	241	sr_source_add(devc->serial->fd, G_IO_IN, 500,
	242	tondaj_sl_814_receive_data, (void *)sdi);
	243
	244	return SR_OK;
	245	}
	246
	247	static int hw_dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	248	{
	249	return std_hw_dev_acquisition_stop_serial(sdi, cb_data, hw_dev_close,
	250	((struct dev_context *)(sdi->priv))->serial, DRIVER_LOG_DOMAIN);
	251	}
	252
	253	SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info = {
	254	.name = "tondaj-sl-814",
	255	.longname = "Tondaj SL-814",
	256	.api_version = 1,
	257	.init = hw_init,
	258	.cleanup = hw_cleanup,
	259	.scan = hw_scan,
	260	.dev_list = hw_dev_list,
	261	.dev_clear = clear_instances,
	262	.config_get = NULL,
	263	.config_set = config_set,
	264	.config_list = config_list,
	265	.dev_open = hw_dev_open,
	266	.dev_close = hw_dev_close,
	267	.dev_acquisition_start = hw_dev_acquisition_start,
	268	.dev_acquisition_stop = hw_dev_acquisition_stop,
	269	.priv = NULL,
	270	};