[libsigrok.git] / src / hardware / brymen-dmm / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.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 "protocol.h"

static const uint32_t scanopts[] = {
	SR_CONF_CONN,
	SR_CONF_SERIALCOMM,
};

static const uint32_t drvopts[] = {
	SR_CONF_MULTIMETER,
};

static const uint32_t devopts[] = {
	SR_CONF_CONTINUOUS,
	SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
	SR_CONF_LIMIT_MSEC | SR_CONF_SET,
};

static GSList *brymen_scan(struct sr_dev_driver *di, const char *conn,
	const char *serialcomm)
{
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	struct sr_serial_dev_inst *serial;
	GSList *devices;
	int ret;
	uint8_t buf[128];
	size_t len;

	serial = sr_serial_dev_inst_new(conn, serialcomm);

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

	sr_info("Probing port %s.", conn);

	devices = NULL;

	/* Request reading */
	if ((ret = brymen_packet_request(serial)) < 0) {
		sr_err("Unable to send command: %d.", ret);
		goto scan_cleanup;
	}

	len = 128;
	ret = brymen_stream_detect(serial, buf, &len, brymen_packet_length,
			     brymen_packet_is_valid, 1000, 9600);
	if (ret != SR_OK)
		goto scan_cleanup;

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

	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->status = SR_ST_INACTIVE;
	sdi->vendor = g_strdup("Brymen");
	sdi->model = g_strdup("BM85x");
	devc = g_malloc0(sizeof(struct dev_context));
	sr_sw_limits_init(&devc->sw_limits);
	sdi->inst_type = SR_INST_SERIAL;
	sdi->conn = serial;
	sdi->priv = devc;
	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
	devices = g_slist_append(devices, sdi);

scan_cleanup:
	serial_close(serial);

	return std_scan_complete(di, devices);
}

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

	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) {
		/* Use the provided comm specs. */
		devices = brymen_scan(di, conn, serialcomm);
	} else {
		/* But 9600/8n1 should work all of the time. */
		devices = brymen_scan(di, conn, "9600/8n1/dtr=1/rts=1");
	}

	return devices;
}

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

	(void)cg;

	devc = sdi->priv;

	return sr_sw_limits_config_set(&devc->sw_limits, key, data);
}

static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
}

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

	devc = sdi->priv;

	sr_sw_limits_acquisition_start(&devc->sw_limits);
	std_session_send_df_header(sdi);

	/* Poll every 50ms, or whenever some data comes in. */
	serial = sdi->conn;
	serial_source_add(sdi->session, serial, G_IO_IN, 50,
			brymen_dmm_receive_data, (void *)sdi);

	return SR_OK;
}

static struct sr_dev_driver brymen_bm857_driver_info = {
	.name = "brymen-bm857",
	.longname = "Brymen BM857",
	.api_version = 1,
	.init = std_init,
	.cleanup = std_cleanup,
	.scan = scan,
	.dev_list = std_dev_list,
	.dev_clear = std_dev_clear,
	.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,
	.dev_acquisition_stop = std_serial_dev_acquisition_stop,
	.context = NULL,
};
SR_REGISTER_DEV_DRIVER(brymen_bm857_driver_info);
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.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 <config.h>
	21	#include "protocol.h"
	22
	23	static const uint32_t scanopts[] = {
	24	SR_CONF_CONN,
	25	SR_CONF_SERIALCOMM,
	26	};
	27
	28	static const uint32_t drvopts[] = {
	29	SR_CONF_MULTIMETER,
	30	};
	31
	32	static const uint32_t devopts[] = {
	33	SR_CONF_CONTINUOUS,
	34	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET,
	35	SR_CONF_LIMIT_MSEC \| SR_CONF_SET,
	36	};
	37
	38	static GSList brymen_scan(struct sr_dev_driver di, const char *conn,
	39	const char *serialcomm)
	40	{
	41	struct sr_dev_inst *sdi;
	42	struct dev_context *devc;
	43	struct sr_serial_dev_inst *serial;
	44	GSList *devices;
	45	int ret;
	46	uint8_t buf[128];
	47	size_t len;
	48
	49	serial = sr_serial_dev_inst_new(conn, serialcomm);
	50
	51	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	52	return NULL;
	53
	54	sr_info("Probing port %s.", conn);
	55
	56	devices = NULL;
	57
	58	/* Request reading */
	59	if ((ret = brymen_packet_request(serial)) < 0) {
	60	sr_err("Unable to send command: %d.", ret);
	61	goto scan_cleanup;
	62	}
	63
	64	len = 128;
	65	ret = brymen_stream_detect(serial, buf, &len, brymen_packet_length,
	66	brymen_packet_is_valid, 1000, 9600);
	67	if (ret != SR_OK)
	68	goto scan_cleanup;
	69
	70	sr_info("Found device on port %s.", conn);
	71
	72	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	73	sdi->status = SR_ST_INACTIVE;
	74	sdi->vendor = g_strdup("Brymen");
	75	sdi->model = g_strdup("BM85x");
	76	devc = g_malloc0(sizeof(struct dev_context));
	77	sr_sw_limits_init(&devc->sw_limits);
	78	sdi->inst_type = SR_INST_SERIAL;
	79	sdi->conn = serial;
	80	sdi->priv = devc;
	81	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
	82	devices = g_slist_append(devices, sdi);
	83
	84	scan_cleanup:
	85	serial_close(serial);
	86
	87	return std_scan_complete(di, devices);
	88	}
	89
	90	static GSList scan(struct sr_dev_driver di, GSList *options)
	91	{
	92	struct sr_config *src;
	93	GSList devices, l;
	94	const char conn, serialcomm;
	95
	96	devices = NULL;
	97
	98	conn = serialcomm = NULL;
	99	for (l = options; l; l = l->next) {
	100	src = l->data;
	101	switch (src->key) {
	102	case SR_CONF_CONN:
	103	conn = g_variant_get_string(src->data, NULL);
	104	break;
	105	case SR_CONF_SERIALCOMM:
	106	serialcomm = g_variant_get_string(src->data, NULL);
	107	break;
	108	}
	109	}
	110	if (!conn)
	111	return NULL;
	112
	113	if (serialcomm) {
	114	/* Use the provided comm specs. */
	115	devices = brymen_scan(di, conn, serialcomm);
	116	} else {
	117	/* But 9600/8n1 should work all of the time. */
	118	devices = brymen_scan(di, conn, "9600/8n1/dtr=1/rts=1");
	119	}
	120
	121	return devices;
	122	}
	123
	124	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
	125	const struct sr_channel_group *cg)
	126	{
	127	struct dev_context *devc;
	128
	129	(void)cg;
	130
	131	devc = sdi->priv;
	132
	133	return sr_sw_limits_config_set(&devc->sw_limits, key, data);
	134	}
	135
	136	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	137	const struct sr_channel_group *cg)
	138	{
	139	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
	140	}
	141
	142	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	143	{
	144	struct dev_context *devc;
	145	struct sr_serial_dev_inst *serial;
	146
	147	devc = sdi->priv;
	148
	149	sr_sw_limits_acquisition_start(&devc->sw_limits);
	150	std_session_send_df_header(sdi);
	151
	152	/* Poll every 50ms, or whenever some data comes in. */
	153	serial = sdi->conn;
	154	serial_source_add(sdi->session, serial, G_IO_IN, 50,
	155	brymen_dmm_receive_data, (void *)sdi);
	156
	157	return SR_OK;
	158	}
	159
	160	static struct sr_dev_driver brymen_bm857_driver_info = {
	161	.name = "brymen-bm857",
	162	.longname = "Brymen BM857",
	163	.api_version = 1,
	164	.init = std_init,
	165	.cleanup = std_cleanup,
	166	.scan = scan,
	167	.dev_list = std_dev_list,
	168	.dev_clear = std_dev_clear,
	169	.config_get = NULL,
	170	.config_set = config_set,
	171	.config_list = config_list,
	172	.dev_open = std_serial_dev_open,
	173	.dev_close = std_serial_dev_close,
	174	.dev_acquisition_start = dev_acquisition_start,
	175	.dev_acquisition_stop = std_serial_dev_acquisition_stop,
	176	.context = NULL,
	177	};
	178	SR_REGISTER_DEV_DRIVER(brymen_bm857_driver_info);