[libsigrok.git] / src / hardware / conrad-digi-35-cpu / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2014 Matthias Heidbrink <m-sigrok@heidbrink.biz>
 *
 * 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/>.
 */

/**
 * @file
 *
 * <em>Conrad DIGI 35 CPU</em> power supply driver
 *
 * @internal
 */

#include <config.h>
#include "protocol.h"

#define SERIALCOMM "9600/8n1"

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

static const uint32_t devopts[] = {
	SR_CONF_POWER_SUPPLY,
	SR_CONF_VOLTAGE | SR_CONF_SET,
	SR_CONF_CURRENT | SR_CONF_SET,
	SR_CONF_OVER_CURRENT_PROTECTION_ENABLED | SR_CONF_SET,
};

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

	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;

	/*
	 * We cannot scan for this device because it is write-only.
	 * So just check that the port parameters are valid and assume that
	 * the device is there.
	 */

	serial = sr_serial_dev_inst_new(conn, serialcomm);

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

	serial_flush(serial);
	serial_close(serial);

	sr_spew("Conrad DIGI 35 CPU assumed at %s.", conn);

	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->status = SR_ST_INACTIVE;
	sdi->vendor = g_strdup("Conrad");
	sdi->model = g_strdup("DIGI 35 CPU");
	sdi->conn = serial;
	sdi->priv = NULL;
	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1");

	return std_scan_complete(di, g_slist_append(NULL, sdi));
}

static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	int ret;
	double dblval;

	(void)cg;

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

	switch (key) {
	case SR_CONF_VOLTAGE:
		dblval = g_variant_get_double(data);
		if ((dblval < 0.0) || (dblval > 35.0)) {
			sr_err("Voltage out of range (0 - 35.0)!");
			return SR_ERR_ARG;
		}
		ret = send_msg1(sdi, 'V', (int) (dblval * 10 + 0.5));
		break;
	case SR_CONF_CURRENT:
		dblval = g_variant_get_double(data);
		if ((dblval < 0.01) || (dblval > 2.55)) {
			sr_err("Current out of range (0 - 2.55)!");
			return SR_ERR_ARG;
		}
		ret = send_msg1(sdi, 'C', (int) (dblval * 100 + 0.5));
		break;
	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
		if (g_variant_get_boolean(data))
			ret = send_msg1(sdi, 'V', 900);
		else /* Constant current mode */
			ret = send_msg1(sdi, 'V', 901);
		break;
	default:
		ret = SR_ERR_NA;
	}

	return ret;
}

static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	int ret;

	(void)sdi;
	(void)cg;

	ret = SR_OK;
	switch (key) {
	case SR_CONF_SCAN_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
		break;
	case SR_CONF_DEVICE_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
		break;
	default:
		return SR_ERR_NA;
	}

	return ret;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	return SR_OK;
}

static struct sr_dev_driver conrad_digi_35_cpu_driver_info = {
	.name = "conrad-digi-35-cpu",
	.longname = "Conrad DIGI 35 CPU",
	.api_version = 1,
	.init = std_init,
	.cleanup = std_cleanup,
	.scan = scan,
	.dev_list = std_dev_list,
	.dev_clear = NULL,
	.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 = dev_acquisition_stop,
	.context = NULL,
};
SR_REGISTER_DEV_DRIVER(conrad_digi_35_cpu_driver_info);
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2014 Matthias Heidbrink <m-sigrok@heidbrink.biz>
	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	/**
	21	* @file
	22	*
	23	* <em>Conrad DIGI 35 CPU</em> power supply driver
	24	*
	25	* @internal
	26	*/
	27
	28	#include <config.h>
	29	#include "protocol.h"
	30
	31	#define SERIALCOMM "9600/8n1"
	32
	33	static const uint32_t scanopts[] = {
	34	SR_CONF_CONN,
	35	SR_CONF_SERIALCOMM,
	36	};
	37
	38	static const uint32_t devopts[] = {
	39	SR_CONF_POWER_SUPPLY,
	40	SR_CONF_VOLTAGE \| SR_CONF_SET,
	41	SR_CONF_CURRENT \| SR_CONF_SET,
	42	SR_CONF_OVER_CURRENT_PROTECTION_ENABLED \| SR_CONF_SET,
	43	};
	44
	45	static GSList scan(struct sr_dev_driver di, GSList *options)
	46	{
	47	struct sr_dev_inst *sdi;
	48	struct sr_config *src;
	49	struct sr_serial_dev_inst *serial;
	50	GSList *l;
	51	const char conn, serialcomm;
	52
	53	conn = serialcomm = NULL;
	54
	55	for (l = options; l; l = l->next) {
	56	src = l->data;
	57	switch (src->key) {
	58	case SR_CONF_CONN:
	59	conn = g_variant_get_string(src->data, NULL);
	60	break;
	61	case SR_CONF_SERIALCOMM:
	62	serialcomm = g_variant_get_string(src->data, NULL);
	63	break;
	64	}
	65	}
	66	if (!conn)
	67	return NULL;
	68	if (!serialcomm)
	69	serialcomm = SERIALCOMM;
	70
	71	/*
	72	* We cannot scan for this device because it is write-only.
	73	* So just check that the port parameters are valid and assume that
	74	* the device is there.
	75	*/
	76
	77	serial = sr_serial_dev_inst_new(conn, serialcomm);
	78
	79	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	80	return NULL;
	81
	82	serial_flush(serial);
	83	serial_close(serial);
	84
	85	sr_spew("Conrad DIGI 35 CPU assumed at %s.", conn);
	86
	87	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	88	sdi->status = SR_ST_INACTIVE;
	89	sdi->vendor = g_strdup("Conrad");
	90	sdi->model = g_strdup("DIGI 35 CPU");
	91	sdi->conn = serial;
	92	sdi->priv = NULL;
	93	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1");
	94
	95	return std_scan_complete(di, g_slist_append(NULL, sdi));
	96	}
	97
	98	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
	99	const struct sr_channel_group *cg)
	100	{
	101	int ret;
	102	double dblval;
	103
	104	(void)cg;
	105
	106	if (sdi->status != SR_ST_ACTIVE)
	107	return SR_ERR_DEV_CLOSED;
	108
	109	switch (key) {
	110	case SR_CONF_VOLTAGE:
	111	dblval = g_variant_get_double(data);
	112	if ((dblval < 0.0) \|\| (dblval > 35.0)) {
	113	sr_err("Voltage out of range (0 - 35.0)!");
	114	return SR_ERR_ARG;
	115	}
	116	ret = send_msg1(sdi, 'V', (int) (dblval * 10 + 0.5));
	117	break;
	118	case SR_CONF_CURRENT:
	119	dblval = g_variant_get_double(data);
	120	if ((dblval < 0.01) \|\| (dblval > 2.55)) {
	121	sr_err("Current out of range (0 - 2.55)!");
	122	return SR_ERR_ARG;
	123	}
	124	ret = send_msg1(sdi, 'C', (int) (dblval * 100 + 0.5));
	125	break;
	126	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
	127	if (g_variant_get_boolean(data))
	128	ret = send_msg1(sdi, 'V', 900);
	129	else /* Constant current mode */
	130	ret = send_msg1(sdi, 'V', 901);
	131	break;
	132	default:
	133	ret = SR_ERR_NA;
	134	}
	135
	136	return ret;
	137	}
	138
	139	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	140	const struct sr_channel_group *cg)
	141	{
	142	int ret;
	143
	144	(void)sdi;
	145	(void)cg;
	146
	147	ret = SR_OK;
	148	switch (key) {
	149	case SR_CONF_SCAN_OPTIONS:
	150	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	151	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
	152	break;
	153	case SR_CONF_DEVICE_OPTIONS:
	154	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	155	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
	156	break;
	157	default:
	158	return SR_ERR_NA;
	159	}
	160
	161	return ret;
	162	}
	163
	164	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	165	{
	166	if (sdi->status != SR_ST_ACTIVE)
	167	return SR_ERR_DEV_CLOSED;
	168
	169	return SR_OK;
	170	}
	171
	172	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	173	{
	174	if (sdi->status != SR_ST_ACTIVE)
	175	return SR_ERR_DEV_CLOSED;
	176
	177	return SR_OK;
	178	}
	179
	180	static struct sr_dev_driver conrad_digi_35_cpu_driver_info = {
	181	.name = "conrad-digi-35-cpu",
	182	.longname = "Conrad DIGI 35 CPU",
	183	.api_version = 1,
	184	.init = std_init,
	185	.cleanup = std_cleanup,
	186	.scan = scan,
	187	.dev_list = std_dev_list,
	188	.dev_clear = NULL,
	189	.config_get = NULL,
	190	.config_set = config_set,
	191	.config_list = config_list,
	192	.dev_open = std_serial_dev_open,
	193	.dev_close = std_serial_dev_close,
	194	.dev_acquisition_start = dev_acquisition_start,
	195	.dev_acquisition_stop = dev_acquisition_stop,
	196	.context = NULL,
	197	};
	198	SR_REGISTER_DEV_DRIVER(conrad_digi_35_cpu_driver_info);