[libsigrok.git] / src / hardware / mic-985xx / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 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, 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_temp[] = {
	SR_CONF_THERMOMETER,
};

static const uint32_t drvopts_temp_hum[] = {
	SR_CONF_THERMOMETER,
	SR_CONF_HYGROMETER,
};

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

static struct sr_dev_driver mic_98581_driver_info;
static struct sr_dev_driver mic_98583_driver_info;

SR_PRIV const struct mic_dev_info mic_devs[] = {
	{
		"MIC", "98581", "38400/8n2", 32000, TRUE, FALSE, 6,
		packet_valid_temp,
		&mic_98581_driver_info, receive_data_MIC_98581,
	},
	{
		"MIC", "98583", "38400/8n2", 32000, TRUE, TRUE, 10,
		packet_valid_temp_hum,
		&mic_98583_driver_info, receive_data_MIC_98583,
	},
};

static GSList *mic_scan(const char *conn, const char *serialcomm, int idx)
{
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	struct sr_serial_dev_inst *serial;

	serial = sr_serial_dev_inst_new(conn, serialcomm);

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

	serial_flush(serial);

	/* TODO: Query device type. */
	// ret = mic_cmd_get_device_info(serial);

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

	/* TODO: Fill in version from protocol response. */
	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->status = SR_ST_INACTIVE;
	sdi->vendor = g_strdup(mic_devs[idx].vendor);
	sdi->model = g_strdup(mic_devs[idx].device);
	devc = g_malloc0(sizeof(struct dev_context));
	sr_sw_limits_init(&devc->limits);
	sdi->inst_type = SR_INST_SERIAL;
	sdi->conn = serial;
	sdi->priv = devc;

	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "Temperature");

	if (mic_devs[idx].has_humidity)
		sr_channel_new(sdi, 1, SR_CHANNEL_ANALOG, TRUE, "Humidity");

	serial_close(serial);

	return std_scan_complete(mic_devs[idx].di, g_slist_append(NULL, sdi));
}

static GSList *scan(GSList *options, int idx)
{
	struct sr_config *src;
	GSList *l, *devices;
	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)
		devices = mic_scan(conn, serialcomm, idx);
	else
		devices = mic_scan(conn, mic_devs[idx].conn, idx);

	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->limits, key, data);
}

static int config_list(uint32_t key, GVariant **data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg, int idx)
{
	/*
	 * We can't use the ternary operator here! The result would contain
	 * sizeof((cond) ? A : B) where A/B are arrays of different type/size.
	 * The ternary operator always returns the "common" type of A and B,
	 * which would be a pointer instead of either the A or B arrays.
	 * Thus, sizeof() would yield the size of a pointer, not the size
	 * of either the A or B array, which is not what we want.
	 */
	if (mic_devs[idx].has_humidity)
		return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts_temp_hum, devopts);
	else
		return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts_temp, devopts);
}

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

	devc = sdi->priv;

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

	serial = sdi->conn;
	serial_source_add(sdi->session, serial, G_IO_IN, 100,
		      mic_devs[idx].receive_data, (void *)sdi);

	return SR_OK;
}

/* Driver-specific API function wrappers */
#define HW_SCAN(X) \
static GSList *scan_##X(struct sr_dev_driver *di, GSList *options) { \
	(void)di; return scan(options, X); }
#define HW_CONFIG_LIST(X) \
static int config_list_##X(uint32_t key, GVariant **data, \
const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { \
return config_list(key, data, sdi, cg, X); }
#define HW_DEV_ACQUISITION_START(X) \
static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi \
) { return dev_acquisition_start(sdi, X); }

/* Driver structs and API function wrappers */
#define DRV(ID, ID_UPPER, NAME, LONGNAME) \
HW_SCAN(ID_UPPER) \
HW_CONFIG_LIST(ID_UPPER) \
HW_DEV_ACQUISITION_START(ID_UPPER) \
static struct sr_dev_driver ID##_driver_info = { \
	.name = NAME, \
	.longname = LONGNAME, \
	.api_version = 1, \
	.init = std_init, \
	.cleanup = std_cleanup, \
	.scan = scan_##ID_UPPER, \
	.dev_list = std_dev_list, \
	.dev_clear = std_dev_clear, \
	.config_get = NULL, \
	.config_set = config_set, \
	.config_list = config_list_##ID_UPPER, \
	.dev_open = std_serial_dev_open, \
	.dev_close = std_serial_dev_close, \
	.dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
	.dev_acquisition_stop = std_serial_dev_acquisition_stop, \
	.context = NULL, \
}; \
SR_REGISTER_DEV_DRIVER(ID##_driver_info)

DRV(mic_98581, MIC_98581, "mic-98581", "MIC 98581")
DRV(mic_98583, MIC_98583, "mic-98583", "MIC 98583")
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2013 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, 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_temp[] = {
	29	SR_CONF_THERMOMETER,
	30	};
	31
	32	static const uint32_t drvopts_temp_hum[] = {
	33	SR_CONF_THERMOMETER,
	34	SR_CONF_HYGROMETER,
	35	};
	36
	37	static const uint32_t devopts[] = {
	38	SR_CONF_CONTINUOUS,
	39	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET,
	40	SR_CONF_LIMIT_MSEC \| SR_CONF_SET,
	41	};
	42
	43	static struct sr_dev_driver mic_98581_driver_info;
	44	static struct sr_dev_driver mic_98583_driver_info;
	45
	46	SR_PRIV const struct mic_dev_info mic_devs[] = {
	47	{
	48	"MIC", "98581", "38400/8n2", 32000, TRUE, FALSE, 6,
	49	packet_valid_temp,
	50	&mic_98581_driver_info, receive_data_MIC_98581,
	51	},
	52	{
	53	"MIC", "98583", "38400/8n2", 32000, TRUE, TRUE, 10,
	54	packet_valid_temp_hum,
	55	&mic_98583_driver_info, receive_data_MIC_98583,
	56	},
	57	};
	58
	59	static GSList mic_scan(const char conn, const char *serialcomm, int idx)
	60	{
	61	struct sr_dev_inst *sdi;
	62	struct dev_context *devc;
	63	struct sr_serial_dev_inst *serial;
	64
	65	serial = sr_serial_dev_inst_new(conn, serialcomm);
	66
	67	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	68	return NULL;
	69
	70	serial_flush(serial);
	71
	72	/* TODO: Query device type. */
	73	// ret = mic_cmd_get_device_info(serial);
	74
	75	sr_info("Found device on port %s.", conn);
	76
	77	/* TODO: Fill in version from protocol response. */
	78	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	79	sdi->status = SR_ST_INACTIVE;
	80	sdi->vendor = g_strdup(mic_devs[idx].vendor);
	81	sdi->model = g_strdup(mic_devs[idx].device);
	82	devc = g_malloc0(sizeof(struct dev_context));
	83	sr_sw_limits_init(&devc->limits);
	84	sdi->inst_type = SR_INST_SERIAL;
	85	sdi->conn = serial;
	86	sdi->priv = devc;
	87
	88	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "Temperature");
	89
	90	if (mic_devs[idx].has_humidity)
	91	sr_channel_new(sdi, 1, SR_CHANNEL_ANALOG, TRUE, "Humidity");
	92
	93	serial_close(serial);
	94
	95	return std_scan_complete(mic_devs[idx].di, g_slist_append(NULL, sdi));
	96	}
	97
	98	static GSList scan(GSList options, int idx)
	99	{
	100	struct sr_config *src;
	101	GSList l, devices;
	102	const char conn, serialcomm;
	103
	104	conn = serialcomm = NULL;
	105	for (l = options; l; l = l->next) {
	106	src = l->data;
	107	switch (src->key) {
	108	case SR_CONF_CONN:
	109	conn = g_variant_get_string(src->data, NULL);
	110	break;
	111	case SR_CONF_SERIALCOMM:
	112	serialcomm = g_variant_get_string(src->data, NULL);
	113	break;
	114	}
	115	}
	116	if (!conn)
	117	return NULL;
	118
	119	if (serialcomm)
	120	devices = mic_scan(conn, serialcomm, idx);
	121	else
	122	devices = mic_scan(conn, mic_devs[idx].conn, idx);
	123
	124	return devices;
	125	}
	126
	127	static int config_set(uint32_t key, GVariant *data,
	128	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	129	{
	130	struct dev_context *devc;
	131
	132	(void)cg;
	133
	134	devc = sdi->priv;
	135
	136	return sr_sw_limits_config_set(&devc->limits, key, data);
	137	}
	138
	139	static int config_list(uint32_t key, GVariant **data,
	140	const struct sr_dev_inst sdi, const struct sr_channel_group cg, int idx)
	141	{
	142	/*
	143	* We can't use the ternary operator here! The result would contain
	144	* sizeof((cond) ? A : B) where A/B are arrays of different type/size.
	145	* The ternary operator always returns the "common" type of A and B,
	146	* which would be a pointer instead of either the A or B arrays.
	147	* Thus, sizeof() would yield the size of a pointer, not the size
	148	* of either the A or B array, which is not what we want.
	149	*/
	150	if (mic_devs[idx].has_humidity)
	151	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts_temp_hum, devopts);
	152	else
	153	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts_temp, devopts);
	154	}
	155
	156	static int dev_acquisition_start(const struct sr_dev_inst *sdi, int idx)
	157	{
	158	struct dev_context *devc;
	159	struct sr_serial_dev_inst *serial;
	160
	161	devc = sdi->priv;
	162
	163	sr_sw_limits_acquisition_start(&devc->limits);
	164	std_session_send_df_header(sdi);
	165
	166	serial = sdi->conn;
	167	serial_source_add(sdi->session, serial, G_IO_IN, 100,
	168	mic_devs[idx].receive_data, (void *)sdi);
	169
	170	return SR_OK;
	171	}
	172
	173	/* Driver-specific API function wrappers */
	174	#define HW_SCAN(X) \
	175	static GSList scan_##X(struct sr_dev_driver di, GSList *options) { \
	176	(void)di; return scan(options, X); }
	177	#define HW_CONFIG_LIST(X) \
	178	static int config_list_##X(uint32_t key, GVariant **data, \
	179	const struct sr_dev_inst sdi, const struct sr_channel_group cg) { \
	180	return config_list(key, data, sdi, cg, X); }
	181	#define HW_DEV_ACQUISITION_START(X) \
	182	static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi \
	183	) { return dev_acquisition_start(sdi, X); }
	184
	185	/* Driver structs and API function wrappers */
	186	#define DRV(ID, ID_UPPER, NAME, LONGNAME) \
	187	HW_SCAN(ID_UPPER) \
	188	HW_CONFIG_LIST(ID_UPPER) \
	189	HW_DEV_ACQUISITION_START(ID_UPPER) \
	190	static struct sr_dev_driver ID##_driver_info = { \
	191	.name = NAME, \
	192	.longname = LONGNAME, \
	193	.api_version = 1, \
	194	.init = std_init, \
	195	.cleanup = std_cleanup, \
	196	.scan = scan_##ID_UPPER, \
	197	.dev_list = std_dev_list, \
	198	.dev_clear = std_dev_clear, \
	199	.config_get = NULL, \
	200	.config_set = config_set, \
	201	.config_list = config_list_##ID_UPPER, \
	202	.dev_open = std_serial_dev_open, \
	203	.dev_close = std_serial_dev_close, \
	204	.dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
	205	.dev_acquisition_stop = std_serial_dev_acquisition_stop, \
	206	.context = NULL, \
	207	}; \
	208	SR_REGISTER_DEV_DRIVER(ID##_driver_info)
	209
	210	DRV(mic_98581, MIC_98581, "mic-98581", "MIC 98581")
	211	DRV(mic_98583, MIC_98583, "mic-98583", "MIC 98583")