[libsigrok.git] / src / hardware / yokogawa-dlm / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2014 abraxa (Soeren Apel) <soeren@apelpie.net>
 * Based on the Hameg HMO driver by poljar (Damir Jelić) <poljarinho@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 <stdlib.h>
#include "scpi.h"
#include "protocol.h"

static struct sr_dev_driver yokogawa_dlm_driver_info;

static const char *MANUFACTURER_ID = "YOKOGAWA";

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

static const uint32_t drvopts[] = {
	SR_CONF_LOGIC_ANALYZER,
	SR_CONF_OSCILLOSCOPE,
};

static const uint32_t devopts[] = {
	SR_CONF_LIMIT_FRAMES | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_SAMPLERATE | SR_CONF_GET,
	SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_NUM_HDIV | SR_CONF_GET,
	SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};

static const uint32_t devopts_cg_analog[] = {
	SR_CONF_NUM_VDIV | SR_CONF_GET,
	SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};

static const uint32_t devopts_cg_digital[] = {
};

enum {
	CG_INVALID = -1,
	CG_NONE,
	CG_ANALOG,
	CG_DIGITAL,
};

static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
{
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	struct sr_scpi_hw_info *hw_info;
	char *model_name;
	int model_index;

	sdi = NULL;
	devc = NULL;
	hw_info = NULL;

	if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
		sr_info("Couldn't get IDN response.");
		goto fail;
	}

	if (strcmp(hw_info->manufacturer, MANUFACTURER_ID) != 0)
		goto fail;

	if (dlm_model_get(hw_info->model, &model_name, &model_index) != SR_OK)
		goto fail;

	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->vendor = g_strdup("Yokogawa");
	sdi->model = g_strdup(model_name);
	sdi->version = g_strdup(hw_info->firmware_version);

	sdi->serial_num = g_strdup(hw_info->serial_number);

	sr_scpi_hw_info_free(hw_info);
	hw_info = NULL;

	devc = g_malloc0(sizeof(struct dev_context));

	sdi->driver = &yokogawa_dlm_driver_info;
	sdi->priv = devc;
	sdi->inst_type = SR_INST_SCPI;
	sdi->conn = scpi;

	if (dlm_device_init(sdi, model_index) != SR_OK)
		goto fail;

	return sdi;

fail:
	sr_scpi_hw_info_free(hw_info);
	sr_dev_inst_free(sdi);
	g_free(devc);

	return NULL;
}

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	return sr_scpi_scan(di->context, options, probe_device);
}

static void clear_helper(struct dev_context *devc)
{
	dlm_scope_state_destroy(devc->model_state);
	g_free(devc->analog_groups);
	g_free(devc->digital_groups);
}

static int dev_clear(const struct sr_dev_driver *di)
{
	return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
}

static int dev_open(struct sr_dev_inst *sdi)
{
	if (sr_scpi_open(sdi->conn) != SR_OK)
		return SR_ERR;

	if (dlm_scope_state_query(sdi) != SR_OK)
		return SR_ERR;

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	return sr_scpi_close(sdi->conn);
}

/**
 * Check which category a given channel group belongs to.
 *
 * @param devc Our internal device context.
 * @param cg The channel group to check.
 *
 * @retval CG_NONE cg is NULL
 * @retval CG_ANALOG cg is an analog group
 * @retval CG_DIGITAL cg is a digital group
 * @retval CG_INVALID cg is something else
 */
static int check_channel_group(struct dev_context *devc,
			const struct sr_channel_group *cg)
{
	const struct scope_config *model;

	model = devc->model_config;

	if (!cg)
		return CG_NONE;

	if (std_cg_idx(cg, devc->analog_groups, model->analog_channels) >= 0)
		return CG_ANALOG;

	if (std_cg_idx(cg, devc->digital_groups, model->pods) >= 0)
		return CG_DIGITAL;

	sr_err("Invalid channel group specified.");

	return CG_INVALID;
}

static int config_get(uint32_t key, GVariant **data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	int ret, cg_type, idx;
	struct dev_context *devc;
	const struct scope_config *model;
	struct scope_state *state;

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;

	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
		return SR_ERR;

	model = devc->model_config;
	state = devc->model_state;

	switch (key) {
	case SR_CONF_NUM_HDIV:
		*data = g_variant_new_int32(model->num_xdivs);
		ret = SR_OK;
		break;
	case SR_CONF_TIMEBASE:
		*data = g_variant_new("(tt)",
				dlm_timebases[state->timebase][0],
				dlm_timebases[state->timebase][1]);
		ret = SR_OK;
		break;
	case SR_CONF_NUM_VDIV:
		if (!cg)
			return SR_ERR_CHANNEL_GROUP;
		if (cg_type != CG_ANALOG)
			return SR_ERR_NA;
		*data = g_variant_new_int32(model->num_ydivs);
		ret = SR_OK;
		break;
	case SR_CONF_VDIV:
		if (!cg)
			return SR_ERR_CHANNEL_GROUP;
		if (cg_type != CG_ANALOG)
			return SR_ERR_NA;
		if ((idx = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0)
			return SR_ERR_ARG;
		*data = g_variant_new("(tt)",
				dlm_vdivs[state->analog_states[idx].vdiv][0],
				dlm_vdivs[state->analog_states[idx].vdiv][1]);
		ret = SR_OK;
		break;
	case SR_CONF_TRIGGER_SOURCE:
		*data = g_variant_new_string((*model->trigger_sources)[state->trigger_source]);
		ret = SR_OK;
		break;
	case SR_CONF_TRIGGER_SLOPE:
		*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
		ret = SR_OK;
		break;
	case SR_CONF_HORIZ_TRIGGERPOS:
		*data = g_variant_new_double(state->horiz_triggerpos);
		ret = SR_OK;
		break;
	case SR_CONF_COUPLING:
		if (!cg)
			return SR_ERR_CHANNEL_GROUP;
		if (cg_type != CG_ANALOG)
			return SR_ERR_NA;
		if ((idx = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0)
			return SR_ERR_ARG;
		*data = g_variant_new_string((*model->coupling_options)[state->analog_states[idx].coupling]);
		ret = SR_OK;
		break;
	case SR_CONF_SAMPLERATE:
		*data = g_variant_new_uint64(state->sample_rate);
		ret = SR_OK;
		break;
	default:
		ret = SR_ERR_NA;
	}

	return ret;
}

static int config_set(uint32_t key, GVariant *data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	int ret, cg_type, idx, j;
	char float_str[30];
	struct dev_context *devc;
	const struct scope_config *model;
	struct scope_state *state;
	double tmp_d;
	gboolean update_sample_rate;

	if (!sdi || !(devc = sdi->priv))
		return SR_ERR_ARG;

	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
		return SR_ERR;

	model = devc->model_config;
	state = devc->model_state;
	update_sample_rate = FALSE;

	ret = SR_ERR_NA;

	switch (key) {
	case SR_CONF_LIMIT_FRAMES:
		devc->frame_limit = g_variant_get_uint64(data);
		ret = SR_OK;
		break;
	case SR_CONF_TRIGGER_SOURCE:
		if ((idx = std_str_idx(data, *model->trigger_sources, model->num_trigger_sources)) < 0)
			return SR_ERR_ARG;
		state->trigger_source = idx;
		/* TODO: A and B trigger support possible? */
		ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[idx]);
		break;
	case SR_CONF_VDIV:
		if (!cg)
			return SR_ERR_CHANNEL_GROUP;
		if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(dlm_vdivs))) < 0)
			return SR_ERR_ARG;
		if ((j = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0)
			return SR_ERR_ARG;
		state->analog_states[j].vdiv = idx;
		g_ascii_formatd(float_str, sizeof(float_str),
				"%E", (float) dlm_vdivs[idx][0] / dlm_vdivs[idx][1]);
		if (dlm_analog_chan_vdiv_set(sdi->conn, j + 1, float_str) != SR_OK ||
				sr_scpi_get_opc(sdi->conn) != SR_OK)
			return SR_ERR;
		ret = SR_OK;
		break;
	case SR_CONF_TIMEBASE:
		if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(dlm_timebases))) < 0)
			return SR_ERR_ARG;
		state->timebase = idx;
		g_ascii_formatd(float_str, sizeof(float_str),
				"%E", (float) dlm_timebases[idx][0] / dlm_timebases[idx][1]);
		ret = dlm_timebase_set(sdi->conn, float_str);
		update_sample_rate = TRUE;
		break;
	case SR_CONF_HORIZ_TRIGGERPOS:
		tmp_d = g_variant_get_double(data);

		/* TODO: Check if the calculation makes sense for the DLM. */
		if (tmp_d < 0.0 || tmp_d > 1.0)
			return SR_ERR;

		state->horiz_triggerpos = tmp_d;
		tmp_d = -(tmp_d - 0.5) *
				((double) dlm_timebases[state->timebase][0] /
				dlm_timebases[state->timebase][1])
				* model->num_xdivs;

		g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
		ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
		break;
	case SR_CONF_TRIGGER_SLOPE:
		if ((idx = std_str_idx(data, ARRAY_AND_SIZE(dlm_trigger_slopes))) < 0)
			return SR_ERR_ARG;
		/* Note: See dlm_trigger_slopes[] in protocol.c. */
		state->trigger_slope = idx;
		ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
		break;
	case SR_CONF_COUPLING:
		if (!cg)
			return SR_ERR_CHANNEL_GROUP;
		if ((idx = std_str_idx(data, *model->coupling_options, model->num_coupling_options)) < 0)
			return SR_ERR_ARG;
		if ((j = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0)
			return SR_ERR_ARG;
		state->analog_states[j].coupling = idx;
		if (dlm_analog_chan_coupl_set(sdi->conn, j + 1, (*model->coupling_options)[idx]) != SR_OK ||
				sr_scpi_get_opc(sdi->conn) != SR_OK)
			return SR_ERR;
		ret = SR_OK;
		break;
	default:
		ret = SR_ERR_NA;
		break;
	}

	if (ret == SR_OK)
		ret = sr_scpi_get_opc(sdi->conn);

	if (ret == SR_OK && update_sample_rate)
		ret = dlm_sample_rate_query(sdi);

	return ret;
}

static int config_channel_set(const struct sr_dev_inst *sdi,
	struct sr_channel *ch, unsigned int changes)
{
	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
	if (changes != SR_CHANNEL_SET_ENABLED)
		return SR_ERR_NA;

	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
}

static int config_list(uint32_t key, GVariant **data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	int cg_type = CG_NONE;
	struct dev_context *devc;
	const struct scope_config *model;

	devc = (sdi) ? sdi->priv : NULL;
	model = (devc) ? devc->model_config : NULL;

	if (!cg) {
		switch (key) {
		case SR_CONF_SCAN_OPTIONS:
		case SR_CONF_DEVICE_OPTIONS:
			return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
		case SR_CONF_TIMEBASE:
			*data = std_gvar_tuple_array(ARRAY_AND_SIZE(dlm_timebases));
			return SR_OK;
		case SR_CONF_TRIGGER_SOURCE:
			if (!model)
				return SR_ERR_ARG;
			*data = g_variant_new_strv(*model->trigger_sources, model->num_trigger_sources);
			return SR_OK;
		case SR_CONF_TRIGGER_SLOPE:
			*data = g_variant_new_strv(ARRAY_AND_SIZE(dlm_trigger_slopes));
			return SR_OK;
		case SR_CONF_NUM_HDIV:
			*data = g_variant_new_uint32(model->num_xdivs);
			return SR_OK;
		default:
			return SR_ERR_NA;
		}
	}

	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
		return SR_ERR;

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		if (cg_type == CG_ANALOG)
			*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_analog));
		else if (cg_type == CG_DIGITAL)
			*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_digital));
		else
			*data = std_gvar_array_u32(NULL, 0);
		break;
	case SR_CONF_COUPLING:
		if (!cg)
			return SR_ERR_CHANNEL_GROUP;
		*data = g_variant_new_strv(*model->coupling_options, model->num_coupling_options);
		break;
	case SR_CONF_VDIV:
		if (!cg)
			return SR_ERR_CHANNEL_GROUP;
		*data = std_gvar_tuple_array(ARRAY_AND_SIZE(dlm_vdivs));
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int dlm_check_channels(GSList *channels)
{
	GSList *l;
	struct sr_channel *ch;
	gboolean enabled_pod1, enabled_chan4;

	enabled_pod1 = enabled_chan4 = FALSE;

	/* Note: On the DLM2000, CH4 and Logic are shared. */
	/* TODO Handle non-DLM2000 models. */
	for (l = channels; l; l = l->next) {
		ch = l->data;
		switch (ch->type) {
		case SR_CHANNEL_ANALOG:
			if (ch->index == 3)
				enabled_chan4 = TRUE;
			break;
		case SR_CHANNEL_LOGIC:
			enabled_pod1 = TRUE;
			break;
		default:
			return SR_ERR;
		}
	}

	if (enabled_pod1 && enabled_chan4)
		return SR_ERR;

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
	GSList *l;
	gboolean digital_added;
	struct sr_channel *ch;
	struct dev_context *devc;
	struct sr_scpi_dev_inst *scpi;

	scpi = sdi->conn;
	devc = sdi->priv;
	digital_added = FALSE;

	g_slist_free(devc->enabled_channels);
	devc->enabled_channels = NULL;

	for (l = sdi->channels; l; l = l->next) {
		ch = l->data;
		if (!ch->enabled)
			continue;
		/* Only add a single digital channel. */
		if (ch->type != SR_CHANNEL_LOGIC || !digital_added) {
			devc->enabled_channels = g_slist_append(
				devc->enabled_channels, ch);
			if (ch->type == SR_CHANNEL_LOGIC)
				digital_added = TRUE;
		}
	}

	if (!devc->enabled_channels)
		return SR_ERR;

	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
		sr_err("Invalid channel configuration specified!");
		return SR_ERR_NA;
	}

	/* Request data for the first enabled channel. */
	devc->current_channel = devc->enabled_channels;
	dlm_channel_data_request(sdi);

	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
			dlm_data_receive, (void *)sdi);

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

	std_session_send_df_end(sdi);

	devc = sdi->priv;

	devc->num_frames = 0;
	g_slist_free(devc->enabled_channels);
	devc->enabled_channels = NULL;

	sr_scpi_source_remove(sdi->session, sdi->conn);

	return SR_OK;
}

static struct sr_dev_driver yokogawa_dlm_driver_info = {
	.name = "yokogawa-dlm",
	.longname = "Yokogawa DL/DLM",
	.api_version = 1,
	.init = std_init,
	.cleanup = std_cleanup,
	.scan = scan,
	.dev_list = std_dev_list,
	.dev_clear = dev_clear,
	.config_get = config_get,
	.config_set = config_set,
	.config_channel_set = config_channel_set,
	.config_list = config_list,
	.dev_open = dev_open,
	.dev_close = dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = dev_acquisition_stop,
	.context = NULL,
};
SR_REGISTER_DEV_DRIVER(yokogawa_dlm_driver_info);
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2014 abraxa (Soeren Apel) <soeren@apelpie.net>
	5	* Based on the Hameg HMO driver by poljar (Damir Jelić) <poljarinho@gmail.com>
	6	*
	7	* This program is free software: you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation, either version 3 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	19	*/
	20
	21	#include <config.h>
	22	#include <stdlib.h>
	23	#include "scpi.h"
	24	#include "protocol.h"
	25
	26	static struct sr_dev_driver yokogawa_dlm_driver_info;
	27
	28	static const char *MANUFACTURER_ID = "YOKOGAWA";
	29
	30	static const uint32_t scanopts[] = {
	31	SR_CONF_CONN,
	32	};
	33
	34	static const uint32_t drvopts[] = {
	35	SR_CONF_LOGIC_ANALYZER,
	36	SR_CONF_OSCILLOSCOPE,
	37	};
	38
	39	static const uint32_t devopts[] = {
	40	SR_CONF_LIMIT_FRAMES \| SR_CONF_GET \| SR_CONF_SET,
	41	SR_CONF_SAMPLERATE \| SR_CONF_GET,
	42	SR_CONF_TIMEBASE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	43	SR_CONF_NUM_HDIV \| SR_CONF_GET,
	44	SR_CONF_HORIZ_TRIGGERPOS \| SR_CONF_GET \| SR_CONF_SET,
	45	SR_CONF_TRIGGER_SOURCE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	46	SR_CONF_TRIGGER_SLOPE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	47	};
	48
	49	static const uint32_t devopts_cg_analog[] = {
	50	SR_CONF_NUM_VDIV \| SR_CONF_GET,
	51	SR_CONF_VDIV \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	52	SR_CONF_COUPLING \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	53	};
	54
	55	static const uint32_t devopts_cg_digital[] = {
	56	};
	57
	58	enum {
	59	CG_INVALID = -1,
	60	CG_NONE,
	61	CG_ANALOG,
	62	CG_DIGITAL,
	63	};
	64
	65	static struct sr_dev_inst probe_device(struct sr_scpi_dev_inst scpi)
	66	{
	67	struct sr_dev_inst *sdi;
	68	struct dev_context *devc;
	69	struct sr_scpi_hw_info *hw_info;
	70	char *model_name;
	71	int model_index;
	72
	73	sdi = NULL;
	74	devc = NULL;
	75	hw_info = NULL;
	76
	77	if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
	78	sr_info("Couldn't get IDN response.");
	79	goto fail;
	80	}
	81
	82	if (strcmp(hw_info->manufacturer, MANUFACTURER_ID) != 0)
	83	goto fail;
	84
	85	if (dlm_model_get(hw_info->model, &model_name, &model_index) != SR_OK)
	86	goto fail;
	87
	88	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	89	sdi->vendor = g_strdup("Yokogawa");
	90	sdi->model = g_strdup(model_name);
	91	sdi->version = g_strdup(hw_info->firmware_version);
	92
	93	sdi->serial_num = g_strdup(hw_info->serial_number);
	94
	95	sr_scpi_hw_info_free(hw_info);
	96	hw_info = NULL;
	97
	98	devc = g_malloc0(sizeof(struct dev_context));
	99
	100	sdi->driver = &yokogawa_dlm_driver_info;
	101	sdi->priv = devc;
	102	sdi->inst_type = SR_INST_SCPI;
	103	sdi->conn = scpi;
	104
	105	if (dlm_device_init(sdi, model_index) != SR_OK)
	106	goto fail;
	107
	108	return sdi;
	109
	110	fail:
	111	sr_scpi_hw_info_free(hw_info);
	112	sr_dev_inst_free(sdi);
	113	g_free(devc);
	114
	115	return NULL;
	116	}
	117
	118	static GSList scan(struct sr_dev_driver di, GSList *options)
	119	{
	120	return sr_scpi_scan(di->context, options, probe_device);
	121	}
	122
	123	static void clear_helper(struct dev_context *devc)
	124	{
	125	dlm_scope_state_destroy(devc->model_state);
	126	g_free(devc->analog_groups);
	127	g_free(devc->digital_groups);
	128	}
	129
	130	static int dev_clear(const struct sr_dev_driver *di)
	131	{
	132	return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
	133	}
	134
	135	static int dev_open(struct sr_dev_inst *sdi)
	136	{
	137	if (sr_scpi_open(sdi->conn) != SR_OK)
	138	return SR_ERR;
	139
	140	if (dlm_scope_state_query(sdi) != SR_OK)
	141	return SR_ERR;
	142
	143	return SR_OK;
	144	}
	145
	146	static int dev_close(struct sr_dev_inst *sdi)
	147	{
	148	return sr_scpi_close(sdi->conn);
	149	}
	150
	151	/**
	152	* Check which category a given channel group belongs to.
	153	*
	154	* @param devc Our internal device context.
	155	* @param cg The channel group to check.
	156	*
	157	* @retval CG_NONE cg is NULL
	158	* @retval CG_ANALOG cg is an analog group
	159	* @retval CG_DIGITAL cg is a digital group
	160	* @retval CG_INVALID cg is something else
	161	*/
	162	static int check_channel_group(struct dev_context *devc,
	163	const struct sr_channel_group *cg)
	164	{
	165	const struct scope_config *model;
	166
	167	model = devc->model_config;
	168
	169	if (!cg)
	170	return CG_NONE;
	171
	172	if (std_cg_idx(cg, devc->analog_groups, model->analog_channels) >= 0)
	173	return CG_ANALOG;
	174
	175	if (std_cg_idx(cg, devc->digital_groups, model->pods) >= 0)
	176	return CG_DIGITAL;
	177
	178	sr_err("Invalid channel group specified.");
	179
	180	return CG_INVALID;
	181	}
	182
	183	static int config_get(uint32_t key, GVariant **data,
	184	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	185	{
	186	int ret, cg_type, idx;
	187	struct dev_context *devc;
	188	const struct scope_config *model;
	189	struct scope_state *state;
	190
	191	if (!sdi)
	192	return SR_ERR_ARG;
	193
	194	devc = sdi->priv;
	195
	196	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	197	return SR_ERR;
	198
	199	model = devc->model_config;
	200	state = devc->model_state;
	201
	202	switch (key) {
	203	case SR_CONF_NUM_HDIV:
	204	*data = g_variant_new_int32(model->num_xdivs);
	205	ret = SR_OK;
	206	break;
	207	case SR_CONF_TIMEBASE:
	208	*data = g_variant_new("(tt)",
	209	dlm_timebases[state->timebase][0],
	210	dlm_timebases[state->timebase][1]);
	211	ret = SR_OK;
	212	break;
	213	case SR_CONF_NUM_VDIV:
	214	if (!cg)
	215	return SR_ERR_CHANNEL_GROUP;
	216	if (cg_type != CG_ANALOG)
	217	return SR_ERR_NA;
	218	*data = g_variant_new_int32(model->num_ydivs);
	219	ret = SR_OK;
	220	break;
	221	case SR_CONF_VDIV:
	222	if (!cg)
	223	return SR_ERR_CHANNEL_GROUP;
	224	if (cg_type != CG_ANALOG)
	225	return SR_ERR_NA;
	226	if ((idx = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0)
	227	return SR_ERR_ARG;
	228	*data = g_variant_new("(tt)",
	229	dlm_vdivs[state->analog_states[idx].vdiv][0],
	230	dlm_vdivs[state->analog_states[idx].vdiv][1]);
	231	ret = SR_OK;
	232	break;
	233	case SR_CONF_TRIGGER_SOURCE:
	234	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	235	ret = SR_OK;
	236	break;
	237	case SR_CONF_TRIGGER_SLOPE:
	238	*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
	239	ret = SR_OK;
	240	break;
	241	case SR_CONF_HORIZ_TRIGGERPOS:
	242	*data = g_variant_new_double(state->horiz_triggerpos);
	243	ret = SR_OK;
	244	break;
	245	case SR_CONF_COUPLING:
	246	if (!cg)
	247	return SR_ERR_CHANNEL_GROUP;
	248	if (cg_type != CG_ANALOG)
	249	return SR_ERR_NA;
	250	if ((idx = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0)
	251	return SR_ERR_ARG;
	252	data = g_variant_new_string((model->coupling_options)[state->analog_states[idx].coupling]);
	253	ret = SR_OK;
	254	break;
	255	case SR_CONF_SAMPLERATE:
	256	*data = g_variant_new_uint64(state->sample_rate);
	257	ret = SR_OK;
	258	break;
	259	default:
	260	ret = SR_ERR_NA;
	261	}
	262
	263	return ret;
	264	}
	265
	266	static int config_set(uint32_t key, GVariant *data,
	267	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	268	{
	269	int ret, cg_type, idx, j;
	270	char float_str[30];
	271	struct dev_context *devc;
	272	const struct scope_config *model;
	273	struct scope_state *state;
	274	double tmp_d;
	275	gboolean update_sample_rate;
	276
	277	if (!sdi \|\| !(devc = sdi->priv))
	278	return SR_ERR_ARG;
	279
	280	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	281	return SR_ERR;
	282
	283	model = devc->model_config;
	284	state = devc->model_state;
	285	update_sample_rate = FALSE;
	286
	287	ret = SR_ERR_NA;
	288
	289	switch (key) {
	290	case SR_CONF_LIMIT_FRAMES:
	291	devc->frame_limit = g_variant_get_uint64(data);
	292	ret = SR_OK;
	293	break;
	294	case SR_CONF_TRIGGER_SOURCE:
	295	if ((idx = std_str_idx(data, *model->trigger_sources, model->num_trigger_sources)) < 0)
	296	return SR_ERR_ARG;
	297	state->trigger_source = idx;
	298	/* TODO: A and B trigger support possible? */
	299	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[idx]);
	300	break;
	301	case SR_CONF_VDIV:
	302	if (!cg)
	303	return SR_ERR_CHANNEL_GROUP;
	304	if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(dlm_vdivs))) < 0)
	305	return SR_ERR_ARG;
	306	if ((j = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0)
	307	return SR_ERR_ARG;
	308	state->analog_states[j].vdiv = idx;
	309	g_ascii_formatd(float_str, sizeof(float_str),
	310	"%E", (float) dlm_vdivs[idx][0] / dlm_vdivs[idx][1]);
	311	if (dlm_analog_chan_vdiv_set(sdi->conn, j + 1, float_str) != SR_OK \|\|
	312	sr_scpi_get_opc(sdi->conn) != SR_OK)
	313	return SR_ERR;
	314	ret = SR_OK;
	315	break;
	316	case SR_CONF_TIMEBASE:
	317	if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(dlm_timebases))) < 0)
	318	return SR_ERR_ARG;
	319	state->timebase = idx;
	320	g_ascii_formatd(float_str, sizeof(float_str),
	321	"%E", (float) dlm_timebases[idx][0] / dlm_timebases[idx][1]);
	322	ret = dlm_timebase_set(sdi->conn, float_str);
	323	update_sample_rate = TRUE;
	324	break;
	325	case SR_CONF_HORIZ_TRIGGERPOS:
	326	tmp_d = g_variant_get_double(data);
	327
	328	/* TODO: Check if the calculation makes sense for the DLM. */
	329	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	330	return SR_ERR;
	331
	332	state->horiz_triggerpos = tmp_d;
	333	tmp_d = -(tmp_d - 0.5) *
	334	((double) dlm_timebases[state->timebase][0] /
	335	dlm_timebases[state->timebase][1])
	336	* model->num_xdivs;
	337
	338	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	339	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	340	break;
	341	case SR_CONF_TRIGGER_SLOPE:
	342	if ((idx = std_str_idx(data, ARRAY_AND_SIZE(dlm_trigger_slopes))) < 0)
	343	return SR_ERR_ARG;
	344	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	345	state->trigger_slope = idx;
	346	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	347	break;
	348	case SR_CONF_COUPLING:
	349	if (!cg)
	350	return SR_ERR_CHANNEL_GROUP;
	351	if ((idx = std_str_idx(data, *model->coupling_options, model->num_coupling_options)) < 0)
	352	return SR_ERR_ARG;
	353	if ((j = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0)
	354	return SR_ERR_ARG;
	355	state->analog_states[j].coupling = idx;
	356	if (dlm_analog_chan_coupl_set(sdi->conn, j + 1, (*model->coupling_options)[idx]) != SR_OK \|\|
	357	sr_scpi_get_opc(sdi->conn) != SR_OK)
	358	return SR_ERR;
	359	ret = SR_OK;
	360	break;
	361	default:
	362	ret = SR_ERR_NA;
	363	break;
	364	}
	365
	366	if (ret == SR_OK)
	367	ret = sr_scpi_get_opc(sdi->conn);
	368
	369	if (ret == SR_OK && update_sample_rate)
	370	ret = dlm_sample_rate_query(sdi);
	371
	372	return ret;
	373	}
	374
	375	static int config_channel_set(const struct sr_dev_inst *sdi,
	376	struct sr_channel *ch, unsigned int changes)
	377	{
	378	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
	379	if (changes != SR_CHANNEL_SET_ENABLED)
	380	return SR_ERR_NA;
	381
	382	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
	383	}
	384
	385	static int config_list(uint32_t key, GVariant **data,
	386	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	387	{
	388	int cg_type = CG_NONE;
	389	struct dev_context *devc;
	390	const struct scope_config *model;
	391
	392	devc = (sdi) ? sdi->priv : NULL;
	393	model = (devc) ? devc->model_config : NULL;
	394
	395	if (!cg) {
	396	switch (key) {
	397	case SR_CONF_SCAN_OPTIONS:
	398	case SR_CONF_DEVICE_OPTIONS:
	399	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
	400	case SR_CONF_TIMEBASE:
	401	*data = std_gvar_tuple_array(ARRAY_AND_SIZE(dlm_timebases));
	402	return SR_OK;
	403	case SR_CONF_TRIGGER_SOURCE:
	404	if (!model)
	405	return SR_ERR_ARG;
	406	data = g_variant_new_strv(model->trigger_sources, model->num_trigger_sources);
	407	return SR_OK;
	408	case SR_CONF_TRIGGER_SLOPE:
	409	*data = g_variant_new_strv(ARRAY_AND_SIZE(dlm_trigger_slopes));
	410	return SR_OK;
	411	case SR_CONF_NUM_HDIV:
	412	*data = g_variant_new_uint32(model->num_xdivs);
	413	return SR_OK;
	414	default:
	415	return SR_ERR_NA;
	416	}
	417	}
	418
	419	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	420	return SR_ERR;
	421
	422	switch (key) {
	423	case SR_CONF_DEVICE_OPTIONS:
	424	if (cg_type == CG_ANALOG)
	425	*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_analog));
	426	else if (cg_type == CG_DIGITAL)
	427	*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_digital));
	428	else
	429	*data = std_gvar_array_u32(NULL, 0);
	430	break;
	431	case SR_CONF_COUPLING:
	432	if (!cg)
	433	return SR_ERR_CHANNEL_GROUP;
	434	data = g_variant_new_strv(model->coupling_options, model->num_coupling_options);
	435	break;
	436	case SR_CONF_VDIV:
	437	if (!cg)
	438	return SR_ERR_CHANNEL_GROUP;
	439	*data = std_gvar_tuple_array(ARRAY_AND_SIZE(dlm_vdivs));
	440	break;
	441	default:
	442	return SR_ERR_NA;
	443	}
	444
	445	return SR_OK;
	446	}
	447
	448	static int dlm_check_channels(GSList *channels)
	449	{
	450	GSList *l;
	451	struct sr_channel *ch;
	452	gboolean enabled_pod1, enabled_chan4;
	453
	454	enabled_pod1 = enabled_chan4 = FALSE;
	455
	456	/* Note: On the DLM2000, CH4 and Logic are shared. */
	457	/* TODO Handle non-DLM2000 models. */
	458	for (l = channels; l; l = l->next) {
	459	ch = l->data;
	460	switch (ch->type) {
	461	case SR_CHANNEL_ANALOG:
	462	if (ch->index == 3)
	463	enabled_chan4 = TRUE;
	464	break;
	465	case SR_CHANNEL_LOGIC:
	466	enabled_pod1 = TRUE;
	467	break;
	468	default:
	469	return SR_ERR;
	470	}
	471	}
	472
	473	if (enabled_pod1 && enabled_chan4)
	474	return SR_ERR;
	475
	476	return SR_OK;
	477	}
	478
	479	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	480	{
	481	GSList *l;
	482	gboolean digital_added;
	483	struct sr_channel *ch;
	484	struct dev_context *devc;
	485	struct sr_scpi_dev_inst *scpi;
	486
	487	scpi = sdi->conn;
	488	devc = sdi->priv;
	489	digital_added = FALSE;
	490
	491	g_slist_free(devc->enabled_channels);
	492	devc->enabled_channels = NULL;
	493
	494	for (l = sdi->channels; l; l = l->next) {
	495	ch = l->data;
	496	if (!ch->enabled)
	497	continue;
	498	/* Only add a single digital channel. */
	499	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	500	devc->enabled_channels = g_slist_append(
	501	devc->enabled_channels, ch);
	502	if (ch->type == SR_CHANNEL_LOGIC)
	503	digital_added = TRUE;
	504	}
	505	}
	506
	507	if (!devc->enabled_channels)
	508	return SR_ERR;
	509
	510	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	511	sr_err("Invalid channel configuration specified!");
	512	return SR_ERR_NA;
	513	}
	514
	515	/* Request data for the first enabled channel. */
	516	devc->current_channel = devc->enabled_channels;
	517	dlm_channel_data_request(sdi);
	518
	519	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
	520	dlm_data_receive, (void *)sdi);
	521
	522	return SR_OK;
	523	}
	524
	525	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	526	{
	527	struct dev_context *devc;
	528
	529	std_session_send_df_end(sdi);
	530
	531	devc = sdi->priv;
	532
	533	devc->num_frames = 0;
	534	g_slist_free(devc->enabled_channels);
	535	devc->enabled_channels = NULL;
	536
	537	sr_scpi_source_remove(sdi->session, sdi->conn);
	538
	539	return SR_OK;
	540	}
	541
	542	static struct sr_dev_driver yokogawa_dlm_driver_info = {
	543	.name = "yokogawa-dlm",
	544	.longname = "Yokogawa DL/DLM",
	545	.api_version = 1,
	546	.init = std_init,
	547	.cleanup = std_cleanup,
	548	.scan = scan,
	549	.dev_list = std_dev_list,
	550	.dev_clear = dev_clear,
	551	.config_get = config_get,
	552	.config_set = config_set,
	553	.config_channel_set = config_channel_set,
	554	.config_list = config_list,
	555	.dev_open = dev_open,
	556	.dev_close = dev_close,
	557	.dev_acquisition_start = dev_acquisition_start,
	558	.dev_acquisition_stop = dev_acquisition_stop,
	559	.context = NULL,
	560	};
	561	SR_REGISTER_DEV_DRIVER(yokogawa_dlm_driver_info);