[libsigrok.git] / hardware / uni-t-dmm / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2012-2013 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, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#include <stdlib.h>
#include <string.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "protocol.h"

#define UNI_T_UT_D04_NEW "1a86.e008"

static const int32_t hwopts[] = {
	SR_CONF_CONN,
};

static const int32_t hwcaps[] = {
	SR_CONF_MULTIMETER,
	SR_CONF_LIMIT_SAMPLES,
	SR_CONF_LIMIT_MSEC,
	SR_CONF_CONTINUOUS,
};

SR_PRIV struct sr_dev_driver tecpel_dmm_8061_driver_info;
SR_PRIV struct sr_dev_driver uni_t_ut60a_driver_info;
SR_PRIV struct sr_dev_driver uni_t_ut60e_driver_info;
SR_PRIV struct sr_dev_driver uni_t_ut61b_driver_info;
SR_PRIV struct sr_dev_driver uni_t_ut61c_driver_info;
SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
SR_PRIV struct sr_dev_driver uni_t_ut61e_driver_info;
SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;
SR_PRIV struct sr_dev_driver voltcraft_vc830_driver_info;
SR_PRIV struct sr_dev_driver voltcraft_vc840_driver_info;
SR_PRIV struct sr_dev_driver tenma_72_7745_driver_info;

SR_PRIV struct dmm_info udmms[] = {
	{
		"Tecpel", "DMM-8061", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		sr_fs9721_00_temp_c,
		&tecpel_dmm_8061_driver_info, receive_data_TECPEL_DMM_8061,
	},
	{
		"UNI-T", "UT60A", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		NULL,
		&uni_t_ut60a_driver_info, receive_data_UNI_T_UT60A,
	},
	{
		"UNI-T", "UT60E", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		sr_fs9721_00_temp_c,
		&uni_t_ut60e_driver_info, receive_data_UNI_T_UT60E,
	},
	{
		"UNI-T", "UT61B", 2400,
		FS9922_PACKET_SIZE,
		sr_fs9922_packet_valid, sr_fs9922_parse,
		NULL,
		&uni_t_ut61b_driver_info, receive_data_UNI_T_UT61B,
	},
	{
		"UNI-T", "UT61C", 2400,
		FS9922_PACKET_SIZE,
		sr_fs9922_packet_valid, sr_fs9922_parse,
		NULL,
		&uni_t_ut61c_driver_info, receive_data_UNI_T_UT61C,
	},
	{
		"UNI-T", "UT61D", 2400,
		FS9922_PACKET_SIZE,
		sr_fs9922_packet_valid, sr_fs9922_parse,
		NULL,
		&uni_t_ut61d_driver_info, receive_data_UNI_T_UT61D,
	},
	{
		/*
		 * Important: The actual baudrate of the Cyrustek ES51922 chip
		 * used in this DMM is 19230. However, the WCH CH9325 chip
		 * (UART to USB/HID) used in (some versions of) the UNI-T
		 * UT-D04 cable doesn't support 19230 baud. It only supports
		 * 19200, and setting an unsupported baudrate will result in
		 * the default of 2400 being used (which will not work with
		 * this DMM, of course).
		 */
		"UNI-T", "UT61E", 19200,
		ES519XX_14B_PACKET_SIZE,
		sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
		NULL,
		&uni_t_ut61e_driver_info, receive_data_UNI_T_UT61E,
	},
	{
		"Voltcraft", "VC-820", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		NULL,
		&voltcraft_vc820_driver_info, receive_data_VOLTCRAFT_VC820,
	},
	{
		/*
		 * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
		 * the FS9922 protocol. Instead, it only sets the user-defined
		 * bit "z1" to indicate "diode mode" and "voltage".
		 */
		"Voltcraft", "VC-830", 2400,
		FS9922_PACKET_SIZE,
		sr_fs9922_packet_valid, sr_fs9922_parse,
		&sr_fs9922_z1_diode,
		&voltcraft_vc830_driver_info, receive_data_VOLTCRAFT_VC830,
	},
	{
		"Voltcraft", "VC-840", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		sr_fs9721_00_temp_c,
		&voltcraft_vc840_driver_info, receive_data_VOLTCRAFT_VC840,
	},
	{
		"Tenma", "72-7745", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		sr_fs9721_00_temp_c,
		&tenma_72_7745_driver_info,
		/* This is a basic rebadge of the UT60E. */
		receive_data_UNI_T_UT60E,
	},
};

static int dev_clear(int dmm)
{
	return std_dev_clear(udmms[dmm].di, NULL);
}

static int init(struct sr_context *sr_ctx, int dmm)
{
	sr_dbg("Selected '%s' subdriver.", udmms[dmm].di->name);

	return std_init(sr_ctx, udmms[dmm].di, LOG_PREFIX);
}

static GSList *scan(GSList *options, int dmm)
{
	GSList *usb_devices, *devices, *l;
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	struct drv_context *drvc;
	struct sr_usb_dev_inst *usb;
	struct sr_config *src;
	struct sr_probe *probe;
	const char *conn;

	drvc = udmms[dmm].di->priv;

	conn = 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;
		}
	}
	if (!conn)
		return NULL;

	devices = NULL;
	if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
		g_slist_free_full(usb_devices, g_free);
		return NULL;
	}

	for (l = usb_devices; l; l = l->next) {
		usb = l->data;

		if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
			sr_err("Device context malloc failed.");
			return NULL;
		}

		devc->first_run = TRUE;

		if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
				udmms[dmm].vendor, udmms[dmm].device, NULL))) {
			sr_err("sr_dev_inst_new returned NULL.");
			return NULL;
		}
		sdi->priv = devc;
		sdi->driver = udmms[dmm].di;
		if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
			return NULL;
		sdi->probes = g_slist_append(sdi->probes, probe);

		sdi->inst_type = SR_INST_USB;
		sdi->conn = usb;

		drvc->instances = g_slist_append(drvc->instances, sdi);
		devices = g_slist_append(devices, sdi);
	}

	return devices;
}

static GSList *dev_list(int dmm)
{
	return ((struct drv_context *)(udmms[dmm].di->priv))->instances;
}

static int dev_open(struct sr_dev_inst *sdi, int dmm)
{
	struct drv_context *drvc;
	struct sr_usb_dev_inst *usb;
	int ret;

	drvc = udmms[dmm].di->priv;
	usb = sdi->conn;

	if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK)
		sdi->status = SR_ST_ACTIVE;

	return ret;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	(void)sdi;

	/* TODO */

	sdi->status = SR_ST_INACTIVE;

	return SR_OK;
}

static int cleanup(int dmm)
{
	return dev_clear(dmm);
}

static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
		const struct sr_probe_group *probe_group)
{
	struct dev_context *devc;

	(void)probe_group;

	devc = sdi->priv;

	switch (id) {
	case SR_CONF_LIMIT_MSEC:
		if (g_variant_get_uint64(data) == 0) {
			sr_err("Time limit cannot be 0.");
			return SR_ERR;
		}
		devc->limit_msec = g_variant_get_uint64(data);
		sr_dbg("Setting time limit to %" PRIu64 "ms.",
		       devc->limit_msec);
		break;
	case SR_CONF_LIMIT_SAMPLES:
		if (g_variant_get_uint64(data) == 0) {
			sr_err("Sample limit cannot be 0.");
			return SR_ERR;
		}
		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,
		const struct sr_probe_group *probe_group)
{
	(void)sdi;
	(void)probe_group;

	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 dev_acquisition_start(const struct sr_dev_inst *sdi,
				    void *cb_data, int dmm)
{
	struct dev_context *devc;

	devc = sdi->priv;

	devc->cb_data = cb_data;

	devc->starttime = g_get_monotonic_time();

	/* Send header packet to the session bus. */
	std_session_send_df_header(cb_data, LOG_PREFIX);

	sr_source_add(0, 0, 10 /* poll_timeout */,
		      udmms[dmm].receive_data, (void *)sdi);

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
	struct sr_datafeed_packet packet;

	(void)sdi;

	sr_dbg("Stopping acquisition.");

	/* Send end packet to the session bus. */
	sr_dbg("Sending SR_DF_END.");
	packet.type = SR_DF_END;
	sr_session_send(cb_data, &packet);

	/* TODO? */
	sr_source_remove(0);

	return SR_OK;
}

/* Driver-specific API function wrappers */
#define HW_INIT(X) \
static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); }
#define HW_CLEANUP(X) \
static int cleanup_##X(void) { return cleanup(X); }
#define HW_SCAN(X) \
static GSList *scan_##X(GSList *options) { return scan(options, X); }
#define HW_DEV_LIST(X) \
static GSList *dev_list_##X(void) { return dev_list(X); }
#define HW_DEV_CLEAR(X) \
static int dev_clear_##X(void) { return dev_clear(X); }
#define HW_DEV_ACQUISITION_START(X) \
static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \
void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); }
#define HW_DEV_OPEN(X) \
static int dev_open_##X(struct sr_dev_inst *sdi) { return dev_open(sdi, X); }

/* Driver structs and API function wrappers */
#define DRV(ID, ID_UPPER, NAME, LONGNAME) \
HW_INIT(ID_UPPER) \
HW_CLEANUP(ID_UPPER) \
HW_SCAN(ID_UPPER) \
HW_DEV_LIST(ID_UPPER) \
HW_DEV_CLEAR(ID_UPPER) \
HW_DEV_ACQUISITION_START(ID_UPPER) \
HW_DEV_OPEN(ID_UPPER) \
SR_PRIV struct sr_dev_driver ID##_driver_info = { \
	.name = NAME, \
	.longname = LONGNAME, \
	.api_version = 1, \
	.init = init_##ID_UPPER, \
	.cleanup = cleanup_##ID_UPPER, \
	.scan = scan_##ID_UPPER, \
	.dev_list = dev_list_##ID_UPPER, \
	.dev_clear = dev_clear_##ID_UPPER, \
	.config_get = NULL, \
	.config_set = config_set, \
	.config_list = config_list, \
	.dev_open = dev_open_##ID_UPPER, \
	.dev_close = dev_close, \
	.dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
	.dev_acquisition_stop = dev_acquisition_stop, \
	.priv = NULL, \
};

DRV(tecpel_dmm_8061, TECPEL_DMM_8061, "tecpel-dmm-8061", "Tecpel DMM-8061")
DRV(uni_t_ut60a, UNI_T_UT60A, "uni-t-ut60a", "UNI-T UT60A")
DRV(uni_t_ut60e, UNI_T_UT60E, "uni-t-ut60e", "UNI-T UT60E")
DRV(uni_t_ut61b, UNI_T_UT61B, "uni-t-ut61b", "UNI-T UT61B")
DRV(uni_t_ut61c, UNI_T_UT61C, "uni-t-ut61c", "UNI-T UT61C")
DRV(uni_t_ut61d, UNI_T_UT61D, "uni-t-ut61d", "UNI-T UT61D")
DRV(uni_t_ut61e, UNI_T_UT61E, "uni-t-ut61e", "UNI-T UT61E")
DRV(voltcraft_vc820, VOLTCRAFT_VC820, "voltcraft-vc820", "Voltcraft VC-820")
DRV(voltcraft_vc830, VOLTCRAFT_VC830, "voltcraft-vc830", "Voltcraft VC-830")
DRV(voltcraft_vc840, VOLTCRAFT_VC840, "voltcraft-vc840", "Voltcraft VC-840")
DRV(tenma_72_7745, TENMA_72_7745, "tenma-72-7745", "Tenma 72-7745")
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2012-2013 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, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#include <stdlib.h>
	22	#include <string.h>
	23	#include "libsigrok.h"
	24	#include "libsigrok-internal.h"
	25	#include "protocol.h"
	26
	27	#define UNI_T_UT_D04_NEW "1a86.e008"
	28
	29	static const int32_t hwopts[] = {
	30	SR_CONF_CONN,
	31	};
	32
	33	static const int32_t hwcaps[] = {
	34	SR_CONF_MULTIMETER,
	35	SR_CONF_LIMIT_SAMPLES,
	36	SR_CONF_LIMIT_MSEC,
	37	SR_CONF_CONTINUOUS,
	38	};
	39
	40	SR_PRIV struct sr_dev_driver tecpel_dmm_8061_driver_info;
	41	SR_PRIV struct sr_dev_driver uni_t_ut60a_driver_info;
	42	SR_PRIV struct sr_dev_driver uni_t_ut60e_driver_info;
	43	SR_PRIV struct sr_dev_driver uni_t_ut61b_driver_info;
	44	SR_PRIV struct sr_dev_driver uni_t_ut61c_driver_info;
	45	SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
	46	SR_PRIV struct sr_dev_driver uni_t_ut61e_driver_info;
	47	SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;
	48	SR_PRIV struct sr_dev_driver voltcraft_vc830_driver_info;
	49	SR_PRIV struct sr_dev_driver voltcraft_vc840_driver_info;
	50	SR_PRIV struct sr_dev_driver tenma_72_7745_driver_info;
	51
	52	SR_PRIV struct dmm_info udmms[] = {
	53	{
	54	"Tecpel", "DMM-8061", 2400,
	55	FS9721_PACKET_SIZE,
	56	sr_fs9721_packet_valid, sr_fs9721_parse,
	57	sr_fs9721_00_temp_c,
	58	&tecpel_dmm_8061_driver_info, receive_data_TECPEL_DMM_8061,
	59	},
	60	{
	61	"UNI-T", "UT60A", 2400,
	62	FS9721_PACKET_SIZE,
	63	sr_fs9721_packet_valid, sr_fs9721_parse,
	64	NULL,
	65	&uni_t_ut60a_driver_info, receive_data_UNI_T_UT60A,
	66	},
	67	{
	68	"UNI-T", "UT60E", 2400,
	69	FS9721_PACKET_SIZE,
	70	sr_fs9721_packet_valid, sr_fs9721_parse,
	71	sr_fs9721_00_temp_c,
	72	&uni_t_ut60e_driver_info, receive_data_UNI_T_UT60E,
	73	},
	74	{
	75	"UNI-T", "UT61B", 2400,
	76	FS9922_PACKET_SIZE,
	77	sr_fs9922_packet_valid, sr_fs9922_parse,
	78	NULL,
	79	&uni_t_ut61b_driver_info, receive_data_UNI_T_UT61B,
	80	},
	81	{
	82	"UNI-T", "UT61C", 2400,
	83	FS9922_PACKET_SIZE,
	84	sr_fs9922_packet_valid, sr_fs9922_parse,
	85	NULL,
	86	&uni_t_ut61c_driver_info, receive_data_UNI_T_UT61C,
	87	},
	88	{
	89	"UNI-T", "UT61D", 2400,
	90	FS9922_PACKET_SIZE,
	91	sr_fs9922_packet_valid, sr_fs9922_parse,
	92	NULL,
	93	&uni_t_ut61d_driver_info, receive_data_UNI_T_UT61D,
	94	},
	95	{
	96	/*
	97	* Important: The actual baudrate of the Cyrustek ES51922 chip
	98	* used in this DMM is 19230. However, the WCH CH9325 chip
	99	* (UART to USB/HID) used in (some versions of) the UNI-T
	100	* UT-D04 cable doesn't support 19230 baud. It only supports
	101	* 19200, and setting an unsupported baudrate will result in
	102	* the default of 2400 being used (which will not work with
	103	* this DMM, of course).
	104	*/
	105	"UNI-T", "UT61E", 19200,
	106	ES519XX_14B_PACKET_SIZE,
	107	sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
	108	NULL,
	109	&uni_t_ut61e_driver_info, receive_data_UNI_T_UT61E,
	110	},
	111	{
	112	"Voltcraft", "VC-820", 2400,
	113	FS9721_PACKET_SIZE,
	114	sr_fs9721_packet_valid, sr_fs9721_parse,
	115	NULL,
	116	&voltcraft_vc820_driver_info, receive_data_VOLTCRAFT_VC820,
	117	},
	118	{
	119	/*
	120	* Note: The VC830 doesn't set the 'volt' and 'diode' bits of
	121	* the FS9922 protocol. Instead, it only sets the user-defined
	122	* bit "z1" to indicate "diode mode" and "voltage".
	123	*/
	124	"Voltcraft", "VC-830", 2400,
	125	FS9922_PACKET_SIZE,
	126	sr_fs9922_packet_valid, sr_fs9922_parse,
	127	&sr_fs9922_z1_diode,
	128	&voltcraft_vc830_driver_info, receive_data_VOLTCRAFT_VC830,
	129	},
	130	{
	131	"Voltcraft", "VC-840", 2400,
	132	FS9721_PACKET_SIZE,
	133	sr_fs9721_packet_valid, sr_fs9721_parse,
	134	sr_fs9721_00_temp_c,
	135	&voltcraft_vc840_driver_info, receive_data_VOLTCRAFT_VC840,
	136	},
	137	{
	138	"Tenma", "72-7745", 2400,
	139	FS9721_PACKET_SIZE,
	140	sr_fs9721_packet_valid, sr_fs9721_parse,
	141	sr_fs9721_00_temp_c,
	142	&tenma_72_7745_driver_info,
	143	/* This is a basic rebadge of the UT60E. */
	144	receive_data_UNI_T_UT60E,
	145	},
	146	};
	147
	148	static int dev_clear(int dmm)
	149	{
	150	return std_dev_clear(udmms[dmm].di, NULL);
	151	}
	152
	153	static int init(struct sr_context *sr_ctx, int dmm)
	154	{
	155	sr_dbg("Selected '%s' subdriver.", udmms[dmm].di->name);
	156
	157	return std_init(sr_ctx, udmms[dmm].di, LOG_PREFIX);
	158	}
	159
	160	static GSList scan(GSList options, int dmm)
	161	{
	162	GSList usb_devices, devices, *l;
	163	struct sr_dev_inst *sdi;
	164	struct dev_context *devc;
	165	struct drv_context *drvc;
	166	struct sr_usb_dev_inst *usb;
	167	struct sr_config *src;
	168	struct sr_probe *probe;
	169	const char *conn;
	170
	171	drvc = udmms[dmm].di->priv;
	172
	173	conn = NULL;
	174	for (l = options; l; l = l->next) {
	175	src = l->data;
	176	switch (src->key) {
	177	case SR_CONF_CONN:
	178	conn = g_variant_get_string(src->data, NULL);
	179	break;
	180	}
	181	}
	182	if (!conn)
	183	return NULL;
	184
	185	devices = NULL;
	186	if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
	187	g_slist_free_full(usb_devices, g_free);
	188	return NULL;
	189	}
	190
	191	for (l = usb_devices; l; l = l->next) {
	192	usb = l->data;
	193
	194	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	195	sr_err("Device context malloc failed.");
	196	return NULL;
	197	}
	198
	199	devc->first_run = TRUE;
	200
	201	if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
	202	udmms[dmm].vendor, udmms[dmm].device, NULL))) {
	203	sr_err("sr_dev_inst_new returned NULL.");
	204	return NULL;
	205	}
	206	sdi->priv = devc;
	207	sdi->driver = udmms[dmm].di;
	208	if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
	209	return NULL;
	210	sdi->probes = g_slist_append(sdi->probes, probe);
	211
	212	sdi->inst_type = SR_INST_USB;
	213	sdi->conn = usb;
	214
	215	drvc->instances = g_slist_append(drvc->instances, sdi);
	216	devices = g_slist_append(devices, sdi);
	217	}
	218
	219	return devices;
	220	}
	221
	222	static GSList *dev_list(int dmm)
	223	{
	224	return ((struct drv_context *)(udmms[dmm].di->priv))->instances;
	225	}
	226
	227	static int dev_open(struct sr_dev_inst *sdi, int dmm)
	228	{
	229	struct drv_context *drvc;
	230	struct sr_usb_dev_inst *usb;
	231	int ret;
	232
	233	drvc = udmms[dmm].di->priv;
	234	usb = sdi->conn;
	235
	236	if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK)
	237	sdi->status = SR_ST_ACTIVE;
	238
	239	return ret;
	240	}
	241
	242	static int dev_close(struct sr_dev_inst *sdi)
	243	{
	244	(void)sdi;
	245
	246	/* TODO */
	247
	248	sdi->status = SR_ST_INACTIVE;
	249
	250	return SR_OK;
	251	}
	252
	253	static int cleanup(int dmm)
	254	{
	255	return dev_clear(dmm);
	256	}
	257
	258	static int config_set(int id, GVariant data, const struct sr_dev_inst sdi,
	259	const struct sr_probe_group *probe_group)
	260	{
	261	struct dev_context *devc;
	262
	263	(void)probe_group;
	264
	265	devc = sdi->priv;
	266
	267	switch (id) {
	268	case SR_CONF_LIMIT_MSEC:
	269	if (g_variant_get_uint64(data) == 0) {
	270	sr_err("Time limit cannot be 0.");
	271	return SR_ERR;
	272	}
	273	devc->limit_msec = g_variant_get_uint64(data);
	274	sr_dbg("Setting time limit to %" PRIu64 "ms.",
	275	devc->limit_msec);
	276	break;
	277	case SR_CONF_LIMIT_SAMPLES:
	278	if (g_variant_get_uint64(data) == 0) {
	279	sr_err("Sample limit cannot be 0.");
	280	return SR_ERR;
	281	}
	282	devc->limit_samples = g_variant_get_uint64(data);
	283	sr_dbg("Setting sample limit to %" PRIu64 ".",
	284	devc->limit_samples);
	285	break;
	286	default:
	287	return SR_ERR_NA;
	288	}
	289
	290	return SR_OK;
	291	}
	292
	293	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi,
	294	const struct sr_probe_group *probe_group)
	295	{
	296	(void)sdi;
	297	(void)probe_group;
	298
	299	switch (key) {
	300	case SR_CONF_SCAN_OPTIONS:
	301	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	302	hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
	303	break;
	304	case SR_CONF_DEVICE_OPTIONS:
	305	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	306	hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
	307	break;
	308	default:
	309	return SR_ERR_NA;
	310	}
	311
	312	return SR_OK;
	313	}
	314
	315	static int dev_acquisition_start(const struct sr_dev_inst *sdi,
	316	void *cb_data, int dmm)
	317	{
	318	struct dev_context *devc;
	319
	320	devc = sdi->priv;
	321
	322	devc->cb_data = cb_data;
	323
	324	devc->starttime = g_get_monotonic_time();
	325
	326	/* Send header packet to the session bus. */
	327	std_session_send_df_header(cb_data, LOG_PREFIX);
	328
	329	sr_source_add(0, 0, 10 /* poll_timeout */,
	330	udmms[dmm].receive_data, (void *)sdi);
	331
	332	return SR_OK;
	333	}
	334
	335	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	336	{
	337	struct sr_datafeed_packet packet;
	338
	339	(void)sdi;
	340
	341	sr_dbg("Stopping acquisition.");
	342
	343	/* Send end packet to the session bus. */
	344	sr_dbg("Sending SR_DF_END.");
	345	packet.type = SR_DF_END;
	346	sr_session_send(cb_data, &packet);
	347
	348	/* TODO? */
	349	sr_source_remove(0);
	350
	351	return SR_OK;
	352	}
	353
	354	/* Driver-specific API function wrappers */
	355	#define HW_INIT(X) \
	356	static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); }
	357	#define HW_CLEANUP(X) \
	358	static int cleanup_##X(void) { return cleanup(X); }
	359	#define HW_SCAN(X) \
	360	static GSList scan_##X(GSList options) { return scan(options, X); }
	361	#define HW_DEV_LIST(X) \
	362	static GSList *dev_list_##X(void) { return dev_list(X); }
	363	#define HW_DEV_CLEAR(X) \
	364	static int dev_clear_##X(void) { return dev_clear(X); }
	365	#define HW_DEV_ACQUISITION_START(X) \
	366	static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \
	367	void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); }
	368	#define HW_DEV_OPEN(X) \
	369	static int dev_open_##X(struct sr_dev_inst *sdi) { return dev_open(sdi, X); }
	370
	371	/* Driver structs and API function wrappers */
	372	#define DRV(ID, ID_UPPER, NAME, LONGNAME) \
	373	HW_INIT(ID_UPPER) \
	374	HW_CLEANUP(ID_UPPER) \
	375	HW_SCAN(ID_UPPER) \
	376	HW_DEV_LIST(ID_UPPER) \
	377	HW_DEV_CLEAR(ID_UPPER) \
	378	HW_DEV_ACQUISITION_START(ID_UPPER) \
	379	HW_DEV_OPEN(ID_UPPER) \
	380	SR_PRIV struct sr_dev_driver ID##_driver_info = { \
	381	.name = NAME, \
	382	.longname = LONGNAME, \
	383	.api_version = 1, \
	384	.init = init_##ID_UPPER, \
	385	.cleanup = cleanup_##ID_UPPER, \
	386	.scan = scan_##ID_UPPER, \
	387	.dev_list = dev_list_##ID_UPPER, \
	388	.dev_clear = dev_clear_##ID_UPPER, \
	389	.config_get = NULL, \
	390	.config_set = config_set, \
	391	.config_list = config_list, \
	392	.dev_open = dev_open_##ID_UPPER, \
	393	.dev_close = dev_close, \
	394	.dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
	395	.dev_acquisition_stop = dev_acquisition_stop, \
	396	.priv = NULL, \
	397	};
	398
	399	DRV(tecpel_dmm_8061, TECPEL_DMM_8061, "tecpel-dmm-8061", "Tecpel DMM-8061")
	400	DRV(uni_t_ut60a, UNI_T_UT60A, "uni-t-ut60a", "UNI-T UT60A")
	401	DRV(uni_t_ut60e, UNI_T_UT60E, "uni-t-ut60e", "UNI-T UT60E")
	402	DRV(uni_t_ut61b, UNI_T_UT61B, "uni-t-ut61b", "UNI-T UT61B")
	403	DRV(uni_t_ut61c, UNI_T_UT61C, "uni-t-ut61c", "UNI-T UT61C")
	404	DRV(uni_t_ut61d, UNI_T_UT61D, "uni-t-ut61d", "UNI-T UT61D")
	405	DRV(uni_t_ut61e, UNI_T_UT61E, "uni-t-ut61e", "UNI-T UT61E")
	406	DRV(voltcraft_vc820, VOLTCRAFT_VC820, "voltcraft-vc820", "Voltcraft VC-820")
	407	DRV(voltcraft_vc830, VOLTCRAFT_VC830, "voltcraft-vc830", "Voltcraft VC-830")
	408	DRV(voltcraft_vc840, VOLTCRAFT_VC840, "voltcraft-vc840", "Voltcraft VC-840")
	409	DRV(tenma_72_7745, TENMA_72_7745, "tenma-72-7745", "Tenma 72-7745")