[libsigrok.git] / src / hardware / rdtech-um / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2018-2020 Andreas Sandberg <andreas@sandberg.pp.se>
 *
 * 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 <glib.h>
#include <fcntl.h>
#include <libsigrok/libsigrok.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>

#include "libsigrok-internal.h"
#include "protocol.h"

#define RDTECH_UM_SERIALCOMM "115200/8n1"

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

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

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

static GSList *rdtech_um_scan(struct sr_dev_driver *di,
	const char *conn, const char *serialcomm)
{
	struct sr_serial_dev_inst *serial;
	const struct rdtech_um_profile *p = NULL;
	GSList *devices = NULL;
	struct dev_context *devc = NULL;
	struct sr_dev_inst *sdi = NULL;
	size_t ch_idx;
	const char *name;

	serial = sr_serial_dev_inst_new(conn, serialcomm);
	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
		goto err_out;

	p = rdtech_um_probe(serial);
	if (!p) {
		sr_err("Failed to find a supported RDTech UM device.");
		goto err_out_serial;
	}

	devc = g_malloc0(sizeof(struct dev_context));
	sdi = g_malloc0(sizeof(struct sr_dev_inst));

	sr_sw_limits_init(&devc->limits);
	devc->profile = p;

	sdi->status = SR_ST_INACTIVE;
	sdi->vendor = g_strdup("RDTech");
	sdi->model = g_strdup(p->model_name);
	sdi->version = NULL;
	sdi->inst_type = SR_INST_SERIAL;
	sdi->conn = serial;
	sdi->priv = devc;

	for (ch_idx = 0; (name = p->channels[ch_idx].name); ch_idx++)
		sr_channel_new(sdi, ch_idx, SR_CHANNEL_ANALOG, TRUE, name);

	devices = g_slist_append(devices, sdi);
	serial_close(serial);
	if (!devices)
		sr_serial_dev_inst_free(serial);

	return std_scan_complete(di, devices);

err_out_serial:
	serial_close(serial);
err_out:
	sr_serial_dev_inst_free(serial);

	return NULL;
}

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	struct sr_config *src;
	const char *conn = NULL;
	const char *serialcomm = RDTECH_UM_SERIALCOMM;

	for (GSList *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;

	return rdtech_um_scan(di, conn, serialcomm);
}

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->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 = sdi->priv;
	struct sr_serial_dev_inst *serial = sdi->conn;

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

	serial_source_add(sdi->session, serial, G_IO_IN, 50,
		rdtech_um_receive_data, (void *)sdi);

	return rdtech_um_poll(sdi);
}

static struct sr_dev_driver rdtech_um_driver_info = {
	.name = "rdtech-um",
	.longname = "RDTech UMxx USB power meter",
	.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(rdtech_um_driver_info);
Commit	Line	Data
8b607a24 AS	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2018-2020 Andreas Sandberg <andreas@sandberg.pp.se>
	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
8b607a24	20	#include <config.h>
dca972f8	21
8b607a24	22	#include <glib.h>
8b607a24	23	#include <fcntl.h>
dca972f8	24	#include <libsigrok/libsigrok.h>
8b607a24	25	#include <string.h>
dca972f8 GS	26	#include <sys/types.h>
dca972f8 GS	27	#include <sys/stat.h>
8b607a24	28
8b607a24	29	#include "libsigrok-internal.h"
8b607a24 AS	30	#include "protocol.h"
	31
	32	#define RDTECH_UM_SERIALCOMM "115200/8n1"
	33
	34	static const uint32_t scanopts[] = {
	35	SR_CONF_CONN,
	36	SR_CONF_SERIALCOMM,
	37	};
	38
	39	static const uint32_t drvopts[] = {
	40	SR_CONF_ENERGYMETER,
	41	};
	42
	43	static const uint32_t devopts[] = {
	44	SR_CONF_CONTINUOUS,
	45	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET,
	46	SR_CONF_LIMIT_MSEC \| SR_CONF_SET,
	47	};
	48
323b32f4 GS	49	static GSList rdtech_um_scan(struct sr_dev_driver di,
323b32f4 GS	50	const char conn, const char serialcomm)
8b607a24 AS	51	{
	52	struct sr_serial_dev_inst *serial;
	53	const struct rdtech_um_profile *p = NULL;
	54	GSList *devices = NULL;
	55	struct dev_context *devc = NULL;
	56	struct sr_dev_inst *sdi = NULL;
323b32f4 GS	57	size_t ch_idx;
323b32f4 GS	58	const char *name;
8b607a24 AS	59
	60	serial = sr_serial_dev_inst_new(conn, serialcomm);
	61	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	62	goto err_out;
	63
	64	p = rdtech_um_probe(serial);
	65	if (!p) {
	66	sr_err("Failed to find a supported RDTech UM device.");
	67	goto err_out_serial;
	68	}
	69
	70	devc = g_malloc0(sizeof(struct dev_context));
	71	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	72
	73	sr_sw_limits_init(&devc->limits);
	74	devc->profile = p;
	75
	76	sdi->status = SR_ST_INACTIVE;
	77	sdi->vendor = g_strdup("RDTech");
	78	sdi->model = g_strdup(p->model_name);
	79	sdi->version = NULL;
	80	sdi->inst_type = SR_INST_SERIAL;
	81	sdi->conn = serial;
	82	sdi->priv = devc;
	83
323b32f4 GS	84	for (ch_idx = 0; (name = p->channels[ch_idx].name); ch_idx++)
323b32f4 GS	85	sr_channel_new(sdi, ch_idx, SR_CHANNEL_ANALOG, TRUE, name);
8b607a24 AS	86
	87	devices = g_slist_append(devices, sdi);
	88	serial_close(serial);
	89	if (!devices)
	90	sr_serial_dev_inst_free(serial);
	91
	92	return std_scan_complete(di, devices);
	93
	94	err_out_serial:
	95	serial_close(serial);
	96	err_out:
	97	sr_serial_dev_inst_free(serial);
	98
	99	return NULL;
	100	}
	101
	102	static GSList scan(struct sr_dev_driver di, GSList *options)
	103	{
	104	struct sr_config *src;
	105	const char *conn = NULL;
	106	const char *serialcomm = RDTECH_UM_SERIALCOMM;
	107
	108	for (GSList *l = options; l; l = l->next) {
	109	src = l->data;
	110	switch (src->key) {
	111	case SR_CONF_CONN:
	112	conn = g_variant_get_string(src->data, NULL);
	113	break;
	114	case SR_CONF_SERIALCOMM:
	115	serialcomm = g_variant_get_string(src->data, NULL);
	116	break;
	117	}
	118	}
	119	if (!conn)
	120	return NULL;
	121
	122	return rdtech_um_scan(di, conn, serialcomm);
	123	}
	124
	125	static int config_set(uint32_t key, GVariant *data,
323b32f4	126	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
8b607a24 AS	127	{
	128	struct dev_context *devc;
	129
	130	(void)cg;
	131
	132	devc = sdi->priv;
	133
	134	return sr_sw_limits_config_set(&devc->limits, key, data);
	135	}
	136
	137	static int config_list(uint32_t key, GVariant **data,
323b32f4	138	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
8b607a24 AS	139	{
	140	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
	141	}
	142
	143	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	144	{
	145	struct dev_context *devc = sdi->priv;
	146	struct sr_serial_dev_inst *serial = sdi->conn;
	147
	148	sr_sw_limits_acquisition_start(&devc->limits);
	149	std_session_send_df_header(sdi);
	150
	151	serial_source_add(sdi->session, serial, G_IO_IN, 50,
323b32f4	152	rdtech_um_receive_data, (void *)sdi);
8b607a24 AS	153
	154	return rdtech_um_poll(sdi);
	155	}
	156
	157	static struct sr_dev_driver rdtech_um_driver_info = {
	158	.name = "rdtech-um",
	159	.longname = "RDTech UMxx USB power meter",
	160	.api_version = 1,
	161	.init = std_init,
	162	.cleanup = std_cleanup,
	163	.scan = scan,
	164	.dev_list = std_dev_list,
	165	.dev_clear = std_dev_clear,
	166	.config_get = NULL,
	167	.config_set = config_set,
	168	.config_list = config_list,
	169	.dev_open = std_serial_dev_open,
	170	.dev_close = std_serial_dev_close,
	171	.dev_acquisition_start = dev_acquisition_start,
	172	.dev_acquisition_stop = std_serial_dev_acquisition_stop,
	173	.context = NULL,
	174	};
	175	SR_REGISTER_DEV_DRIVER(rdtech_um_driver_info);