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

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2014 abraxa (Soeren Apel) <soeren@apelpie.net>
 *
 * 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 "protocol_wrappers.h"

#define MAX_COMMAND_SIZE 64

/*
 * DLM2000 comm spec:
 * https://www.yokogawa.com/pdf/provide/E/GW/IM/0000022842/0/IM710105-17E.pdf
 */

int dlm_timebase_get(struct sr_scpi_dev_inst *scpi,
		gchar **response)
{
	return sr_scpi_get_string(scpi, ":TIMEBASE:TDIV?", response);
}

int dlm_timebase_set(struct sr_scpi_dev_inst *scpi,
		const gchar *value)
{
	gchar cmd[MAX_COMMAND_SIZE];
	g_snprintf(cmd, sizeof(cmd), ":TIMEBASE:TDIV %s", value);
	return sr_scpi_send(scpi, cmd);
}

int dlm_horiz_trigger_pos_get(struct sr_scpi_dev_inst *scpi,
		float *response)
{
	return sr_scpi_get_float(scpi, ":TRIGGER:DELAY:TIME?", response);
}

int dlm_horiz_trigger_pos_set(struct sr_scpi_dev_inst *scpi,
		const gchar *value)
{
	gchar cmd[MAX_COMMAND_SIZE];
	g_snprintf(cmd, sizeof(cmd), ":TRIGGER:DELAY:TIME %s", value);
	return sr_scpi_send(scpi, cmd);
}

int dlm_trigger_source_get(struct sr_scpi_dev_inst *scpi,
		gchar **response)
{
	return sr_scpi_get_string(scpi, ":TRIGGER:ATRIGGER:SIMPLE:SOURCE?", response);
}

int dlm_trigger_source_set(struct sr_scpi_dev_inst *scpi,
		const gchar *value)
{
	gchar cmd[MAX_COMMAND_SIZE];
	g_snprintf(cmd, sizeof(cmd), ":TRIGGER:ATRIGGER:SIMPLE:SOURCE %s", value);
	return sr_scpi_send(scpi, cmd);
}

int dlm_trigger_slope_get(struct sr_scpi_dev_inst *scpi,
		int *response)
{
	gchar *resp;
	int result;

	result = SR_ERR;

	if (sr_scpi_get_string(scpi, ":TRIGGER:ATRIGGER:SIMPLE:SLOPE?", &resp) != SR_OK) {
		g_free(resp);
		return SR_ERR;
	}

	if (strcmp("RISE", resp) == 0) {
		*response = SLOPE_POSITIVE;
		result = SR_OK;
	}

	if (strcmp("FALL", resp) == 0) {
		*response = SLOPE_NEGATIVE;
		result = SR_OK;
	}

	g_free(resp);
	return result;
}

int dlm_trigger_slope_set(struct sr_scpi_dev_inst *scpi,
		const int value)
{
	if (value == SLOPE_POSITIVE)
		return sr_scpi_send(scpi, ":TRIGGER:ATRIGGER:SIMPLE:SLOPE RISE");

	if (value == SLOPE_NEGATIVE)
		return sr_scpi_send(scpi, ":TRIGGER:ATRIGGER:SIMPLE:SLOPE FALL");

	return SR_ERR_ARG;
}

int dlm_analog_chan_state_get(struct sr_scpi_dev_inst *scpi, int channel,
		gboolean *response)
{
	gchar cmd[MAX_COMMAND_SIZE];
	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:DISPLAY?", channel);
	return sr_scpi_get_bool(scpi, cmd, response);
}

int dlm_analog_chan_state_set(struct sr_scpi_dev_inst *scpi, int channel,
		const gboolean value)
{
	gchar cmd[MAX_COMMAND_SIZE];

	if (value)
		g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:DISPLAY ON", channel);
	else
		g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:DISPLAY OFF", channel);

	return sr_scpi_send(scpi, cmd);
}

int dlm_analog_chan_vdiv_get(struct sr_scpi_dev_inst *scpi, int channel,
		gchar **response)
{
	gchar cmd[MAX_COMMAND_SIZE];
	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:VDIV?", channel);
	return sr_scpi_get_string(scpi, cmd, response);
}

int dlm_analog_chan_vdiv_set(struct sr_scpi_dev_inst *scpi, int channel,
		const gchar *value)
{
	gchar cmd[MAX_COMMAND_SIZE];
	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:VDIV %s", channel, value);
	return sr_scpi_send(scpi, cmd);
}

int dlm_analog_chan_voffs_get(struct sr_scpi_dev_inst *scpi, int channel,
		float *response)
{
	gchar cmd[MAX_COMMAND_SIZE];
	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:POSITION?", channel);
	return sr_scpi_get_float(scpi, cmd, response);
}

int dlm_analog_chan_srate_get(struct sr_scpi_dev_inst *scpi, int channel,
		float *response)
{
	gchar cmd[MAX_COMMAND_SIZE];
	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:TRACE %d", channel);

	if (sr_scpi_send(scpi, cmd) != SR_OK)
		return SR_ERR;

	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:RECORD 0");
	if (sr_scpi_send(scpi, cmd) != SR_OK)
		return SR_ERR;

	return sr_scpi_get_float(scpi, ":WAVEFORM:SRATE?", response);
}

int dlm_analog_chan_coupl_get(struct sr_scpi_dev_inst *scpi, int channel,
		gchar **response)
{
	gchar cmd[MAX_COMMAND_SIZE];
	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:COUPLING?", channel);
	return sr_scpi_get_string(scpi, cmd, response);
}

int dlm_analog_chan_coupl_set(struct sr_scpi_dev_inst *scpi, int channel,
		const gchar *value)
{
	gchar cmd[MAX_COMMAND_SIZE];
	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:COUPLING %s", channel, value);
	return sr_scpi_send(scpi, cmd);
}

int dlm_analog_chan_wrange_get(struct sr_scpi_dev_inst *scpi, int channel,
		float *response)
{
	gchar cmd[MAX_COMMAND_SIZE];
	int result;

	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:TRACE %d", channel);
	result  = sr_scpi_send(scpi, cmd);
	result &= sr_scpi_get_float(scpi, ":WAVEFORM:RANGE?", response);
	return result;
}

int dlm_analog_chan_woffs_get(struct sr_scpi_dev_inst *scpi, int channel,
		float *response)
{
	gchar cmd[MAX_COMMAND_SIZE];
	int result;

	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:TRACE %d", channel);
	result  = sr_scpi_send(scpi, cmd);
	result &= sr_scpi_get_float(scpi, ":WAVEFORM:OFFSET?", response);
	return result;
}

int dlm_digital_chan_state_get(struct sr_scpi_dev_inst *scpi, int channel,
		gboolean *response)
{
	gchar cmd[MAX_COMMAND_SIZE];
	g_snprintf(cmd, sizeof(cmd), ":LOGIC:PODA:BIT%d:DISPLAY?", channel);
	return sr_scpi_get_bool(scpi, cmd, response);
}

int dlm_digital_chan_state_set(struct sr_scpi_dev_inst *scpi, int channel,
		const gboolean value)
{
	gchar cmd[MAX_COMMAND_SIZE];

	if (value)
		g_snprintf(cmd, sizeof(cmd), ":LOGIC:PODA:BIT%d:DISPLAY ON", channel);
	else
		g_snprintf(cmd, sizeof(cmd), ":LOGIC:PODA:BIT%d:DISPLAY OFF", channel);

	return sr_scpi_send(scpi, cmd);
}

int dlm_digital_pod_state_get(struct sr_scpi_dev_inst *scpi, int pod,
		gboolean *response)
{
	gchar cmd[MAX_COMMAND_SIZE];

	/* TODO: pod currently ignored as DLM2000 only has pod A. */
	(void)pod;

	g_snprintf(cmd, sizeof(cmd), ":LOGIC:MODE?");
	return sr_scpi_get_bool(scpi, cmd, response);
}

int dlm_digital_pod_state_set(struct sr_scpi_dev_inst *scpi, int pod,
		const gboolean value)
{
	/* TODO: pod currently ignored as DLM2000 only has pod A. */
	(void)pod;

	if (value)
		return sr_scpi_send(scpi, ":LOGIC:MODE ON");
	else
		return sr_scpi_send(scpi, ":LOGIC:MODE OFF");
}


int dlm_response_headers_set(struct sr_scpi_dev_inst *scpi,
		const gboolean value)
{
	if (value)
		return sr_scpi_send(scpi, ":COMMUNICATE:HEADER ON");
	else
		return sr_scpi_send(scpi, ":COMMUNICATE:HEADER OFF");
}

int dlm_acquisition_stop(struct sr_scpi_dev_inst *scpi)
{
	return sr_scpi_send(scpi, ":STOP");
}


int dlm_acq_length_get(struct sr_scpi_dev_inst *scpi,
		uint32_t *response)
{
	int ret;
	char *s;
	long tmp;

	if (sr_scpi_get_string(scpi, ":WAVEFORM:LENGTH?", &s) != SR_OK)
		if (!s)
			return SR_ERR;

	if (sr_atol(s, &tmp) == SR_OK)
		ret = SR_OK;
	else
		ret = SR_ERR;

	g_free(s);
	*response = tmp;

	return ret;
}

int dlm_chunks_per_acq_get(struct sr_scpi_dev_inst *scpi, int *response)
{
	int result, acq_len;

	/* Data retrieval queries such as :WAVEFORM:SEND? will only return
	 * up to 12500 samples at a time. If the oscilloscope operates in a
	 * mode where more than 12500 samples fit on screen (i.e. in one
	 * acquisition), data needs to be retrieved multiple times.
	 */

	result = sr_scpi_get_int(scpi, ":WAVEFORM:LENGTH?", &acq_len);
	*response = MAX(acq_len / DLM_MAX_FRAME_LENGTH, 1);

	return result;
}

int dlm_start_frame_set(struct sr_scpi_dev_inst *scpi, int value)
{
	gchar cmd[MAX_COMMAND_SIZE];

	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:START %d",
			value * DLM_MAX_FRAME_LENGTH);

	return sr_scpi_send(scpi, cmd);
}

int dlm_data_get(struct sr_scpi_dev_inst *scpi, int acquisition_num)
{
	gchar cmd[MAX_COMMAND_SIZE];

	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:ALL:SEND? %d", acquisition_num);
	return sr_scpi_send(scpi, cmd);
}

int dlm_analog_data_get(struct sr_scpi_dev_inst *scpi, int channel)
{
	gchar cmd[MAX_COMMAND_SIZE];
	int result;

	result = sr_scpi_send(scpi, ":WAVEFORM:FORMAT BYTE");
	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:RECORD 0");
	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:START 0");
	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:END 124999999");

	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:TRACE %d", channel);
	if (result == SR_OK) result = sr_scpi_send(scpi, cmd);

	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:SEND? 1");

	return result;
}

int dlm_digital_data_get(struct sr_scpi_dev_inst *scpi)
{
	int result;

	result = sr_scpi_send(scpi, ":WAVEFORM:FORMAT BYTE");
	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:RECORD 0");
	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:START 0");
	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:END 124999999");
	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:TRACE LOGIC");
	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:SEND? 1");

	return result;
}
Commit	Line	Data
10763937 SA	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2014 abraxa (Soeren Apel) <soeren@apelpie.net>
	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	#include "protocol_wrappers.h"
	21
8ab929d6 SA	22	#define MAX_COMMAND_SIZE 64
	23
	24	/*
	25	* DLM2000 comm spec:
	26	* https://www.yokogawa.com/pdf/provide/E/GW/IM/0000022842/0/IM710105-17E.pdf
	27	*/
	28
	29	int dlm_timebase_get(struct sr_scpi_dev_inst *scpi,
	30	gchar **response)
	31	{
	32	return sr_scpi_get_string(scpi, ":TIMEBASE:TDIV?", response);
	33	}
	34
	35	int dlm_timebase_set(struct sr_scpi_dev_inst *scpi,
	36	const gchar *value)
	37	{
	38	gchar cmd[MAX_COMMAND_SIZE];
	39	g_snprintf(cmd, sizeof(cmd), ":TIMEBASE:TDIV %s", value);
	40	return sr_scpi_send(scpi, cmd);
	41	}
	42
	43	int dlm_horiz_trigger_pos_get(struct sr_scpi_dev_inst *scpi,
	44	float *response)
	45	{
	46	return sr_scpi_get_float(scpi, ":TRIGGER:DELAY:TIME?", response);
	47	}
	48
	49	int dlm_horiz_trigger_pos_set(struct sr_scpi_dev_inst *scpi,
	50	const gchar *value)
	51	{
	52	gchar cmd[MAX_COMMAND_SIZE];
	53	g_snprintf(cmd, sizeof(cmd), ":TRIGGER:DELAY:TIME %s", value);
	54	return sr_scpi_send(scpi, cmd);
	55	}
	56
	57	int dlm_trigger_source_get(struct sr_scpi_dev_inst *scpi,
	58	gchar **response)
	59	{
	60	return sr_scpi_get_string(scpi, ":TRIGGER:ATRIGGER:SIMPLE:SOURCE?", response);
	61	}
	62
	63	int dlm_trigger_source_set(struct sr_scpi_dev_inst *scpi,
	64	const gchar *value)
	65	{
	66	gchar cmd[MAX_COMMAND_SIZE];
	67	g_snprintf(cmd, sizeof(cmd), ":TRIGGER:ATRIGGER:SIMPLE:SOURCE %s", value);
	68	return sr_scpi_send(scpi, cmd);
	69	}
	70
	71	int dlm_trigger_slope_get(struct sr_scpi_dev_inst *scpi,
	72	int *response)
	73	{
	74	gchar *resp;
	75	int result;
	76
	77	result = SR_ERR;
	78
	79	if (sr_scpi_get_string(scpi, ":TRIGGER:ATRIGGER:SIMPLE:SLOPE?", &resp) != SR_OK) {
	80	g_free(resp);
	81	return SR_ERR;
	82	}
	83
	84	if (strcmp("RISE", resp) == 0) {
	85	*response = SLOPE_POSITIVE;
86	result = SR_OK;
87	}
88
89	if (strcmp("FALL", resp) == 0) {
90	*response = SLOPE_NEGATIVE;
91	result = SR_OK;
92	}
93
94	g_free(resp);
95	return result;
96	}
97
98	int dlm_trigger_slope_set(struct sr_scpi_dev_inst *scpi,
99	const int value)
100	{
101	if (value == SLOPE_POSITIVE)
102	return sr_scpi_send(scpi, ":TRIGGER:ATRIGGER:SIMPLE:SLOPE RISE");
103
104	if (value == SLOPE_NEGATIVE)
105	return sr_scpi_send(scpi, ":TRIGGER:ATRIGGER:SIMPLE:SLOPE FALL");
106
107	return SR_ERR_ARG;
108	}
109
110	int dlm_analog_chan_state_get(struct sr_scpi_dev_inst *scpi, int channel,
111	gboolean *response)
112	{
113	gchar cmd[MAX_COMMAND_SIZE];
114	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:DISPLAY?", channel);
115	return sr_scpi_get_bool(scpi, cmd, response);
116	}
117
118	int dlm_analog_chan_state_set(struct sr_scpi_dev_inst *scpi, int channel,
119	const gboolean value)
120	{
121	gchar cmd[MAX_COMMAND_SIZE];
122
123	if (value)
124	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:DISPLAY ON", channel);
125	else
126	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:DISPLAY OFF", channel);
127
128	return sr_scpi_send(scpi, cmd);
129	}
130
131	int dlm_analog_chan_vdiv_get(struct sr_scpi_dev_inst *scpi, int channel,
132	gchar **response)
133	{
134	gchar cmd[MAX_COMMAND_SIZE];
135	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:VDIV?", channel);
136	return sr_scpi_get_string(scpi, cmd, response);
137	}
138
139	int dlm_analog_chan_vdiv_set(struct sr_scpi_dev_inst *scpi, int channel,
140	const gchar *value)
141	{
142	gchar cmd[MAX_COMMAND_SIZE];
143	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:VDIV %s", channel, value);
144	return sr_scpi_send(scpi, cmd);
145	}
146
147	int dlm_analog_chan_voffs_get(struct sr_scpi_dev_inst *scpi, int channel,
148	float *response)
149	{
150	gchar cmd[MAX_COMMAND_SIZE];
151	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:POSITION?", channel);
152	return sr_scpi_get_float(scpi, cmd, response);
153	}
154
155	int dlm_analog_chan_srate_get(struct sr_scpi_dev_inst *scpi, int channel,
156	float *response)
157	{
158	gchar cmd[MAX_COMMAND_SIZE];
159	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:TRACE %d", channel);
160
161	if (sr_scpi_send(scpi, cmd) != SR_OK)
162	return SR_ERR;
163
164	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:RECORD 0");
165	if (sr_scpi_send(scpi, cmd) != SR_OK)
166	return SR_ERR;
167
168	return sr_scpi_get_float(scpi, ":WAVEFORM:SRATE?", response);
169	}
170
171	int dlm_analog_chan_coupl_get(struct sr_scpi_dev_inst *scpi, int channel,
172	gchar **response)
173	{
174	gchar cmd[MAX_COMMAND_SIZE];
175	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:COUPLING?", channel);
176	return sr_scpi_get_string(scpi, cmd, response);
177	}
178
179	int dlm_analog_chan_coupl_set(struct sr_scpi_dev_inst *scpi, int channel,
180	const gchar *value)
181	{
182	gchar cmd[MAX_COMMAND_SIZE];
183	g_snprintf(cmd, sizeof(cmd), ":CHANNEL%d:COUPLING %s", channel, value);
184	return sr_scpi_send(scpi, cmd);
185	}
186
187	int dlm_analog_chan_wrange_get(struct sr_scpi_dev_inst *scpi, int channel,
188	float *response)
189	{
190	gchar cmd[MAX_COMMAND_SIZE];
191	int result;
192
193	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:TRACE %d", channel);
194	result = sr_scpi_send(scpi, cmd);
195	result &= sr_scpi_get_float(scpi, ":WAVEFORM:RANGE?", response);
196	return result;
197	}
198
199	int dlm_analog_chan_woffs_get(struct sr_scpi_dev_inst *scpi, int channel,
200	float *response)
201	{
202	gchar cmd[MAX_COMMAND_SIZE];
203	int result;
204
205	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:TRACE %d", channel);
206	result = sr_scpi_send(scpi, cmd);
207	result &= sr_scpi_get_float(scpi, ":WAVEFORM:OFFSET?", response);
208	return result;
209	}
210
211	int dlm_digital_chan_state_get(struct sr_scpi_dev_inst *scpi, int channel,
212	gboolean *response)
213	{
214	gchar cmd[MAX_COMMAND_SIZE];
215	g_snprintf(cmd, sizeof(cmd), ":LOGIC:PODA:BIT%d:DISPLAY?", channel);
216	return sr_scpi_get_bool(scpi, cmd, response);
217	}
218
219	int dlm_digital_chan_state_set(struct sr_scpi_dev_inst *scpi, int channel,
220	const gboolean value)
221	{
222	gchar cmd[MAX_COMMAND_SIZE];
223
224	if (value)
225	g_snprintf(cmd, sizeof(cmd), ":LOGIC:PODA:BIT%d:DISPLAY ON", channel);
226	else
227	g_snprintf(cmd, sizeof(cmd), ":LOGIC:PODA:BIT%d:DISPLAY OFF", channel);
228
229	return sr_scpi_send(scpi, cmd);
230	}
231
232	int dlm_digital_pod_state_get(struct sr_scpi_dev_inst *scpi, int pod,
233	gboolean *response)
234	{
235	gchar cmd[MAX_COMMAND_SIZE];
236
237	/* TODO: pod currently ignored as DLM2000 only has pod A. */
238	(void)pod;
239
240	g_snprintf(cmd, sizeof(cmd), ":LOGIC:MODE?");
241	return sr_scpi_get_bool(scpi, cmd, response);
242	}
243
244	int dlm_digital_pod_state_set(struct sr_scpi_dev_inst *scpi, int pod,
245	const gboolean value)
246	{
247	/* TODO: pod currently ignored as DLM2000 only has pod A. */
248	(void)pod;
249
250	if (value)
251	return sr_scpi_send(scpi, ":LOGIC:MODE ON");
252	else
253	return sr_scpi_send(scpi, ":LOGIC:MODE OFF");
254	}
255
256
257	int dlm_response_headers_set(struct sr_scpi_dev_inst *scpi,
258	const gboolean value)
259	{
260	if (value)
261	return sr_scpi_send(scpi, ":COMMUNICATE:HEADER ON");
262	else
263	return sr_scpi_send(scpi, ":COMMUNICATE:HEADER OFF");
264	}
265
266	int dlm_acquisition_stop(struct sr_scpi_dev_inst *scpi)
267	{
268	return sr_scpi_send(scpi, ":STOP");
269	}
270
271
272	int dlm_acq_length_get(struct sr_scpi_dev_inst *scpi,
af3487ec	273	uint32_t *response)
8ab929d6	274	{
af3487ec SA	275	int ret;
	276	char *s;
	277	long tmp;
	278
	279	if (sr_scpi_get_string(scpi, ":WAVEFORM:LENGTH?", &s) != SR_OK)
	280	if (!s)
	281	return SR_ERR;
	282
	283	if (sr_atol(s, &tmp) == SR_OK)
	284	ret = SR_OK;
	285	else
	286	ret = SR_ERR;
	287
	288	g_free(s);
	289	*response = tmp;
	290
	291	return ret;
8ab929d6 SA	292	}
	293
	294	int dlm_chunks_per_acq_get(struct sr_scpi_dev_inst scpi, int response)
	295	{
	296	int result, acq_len;
	297
	298	/* Data retrieval queries such as :WAVEFORM:SEND? will only return
	299	* up to 12500 samples at a time. If the oscilloscope operates in a
	300	* mode where more than 12500 samples fit on screen (i.e. in one
	301	* acquisition), data needs to be retrieved multiple times.
	302	*/
	303
	304	result = sr_scpi_get_int(scpi, ":WAVEFORM:LENGTH?", &acq_len);
	305	*response = MAX(acq_len / DLM_MAX_FRAME_LENGTH, 1);
	306
	307	return result;
	308	}
	309
	310	int dlm_start_frame_set(struct sr_scpi_dev_inst *scpi, int value)
	311	{
	312	gchar cmd[MAX_COMMAND_SIZE];
	313
	314	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:START %d",
	315	value * DLM_MAX_FRAME_LENGTH);
	316
	317	return sr_scpi_send(scpi, cmd);
	318	}
	319
	320	int dlm_data_get(struct sr_scpi_dev_inst *scpi, int acquisition_num)
	321	{
	322	gchar cmd[MAX_COMMAND_SIZE];
	323
	324	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:ALL:SEND? %d", acquisition_num);
	325	return sr_scpi_send(scpi, cmd);
	326	}
	327
	328	int dlm_analog_data_get(struct sr_scpi_dev_inst *scpi, int channel)
	329	{
	330	gchar cmd[MAX_COMMAND_SIZE];
	331	int result;
	332
	333	result = sr_scpi_send(scpi, ":WAVEFORM:FORMAT BYTE");
	334	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:RECORD 0");
	335	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:START 0");
	336	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:END 124999999");
	337
	338	g_snprintf(cmd, sizeof(cmd), ":WAVEFORM:TRACE %d", channel);
	339	if (result == SR_OK) result = sr_scpi_send(scpi, cmd);
	340
	341	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:SEND? 1");
	342
	343	return result;
	344	}
	345
	346	int dlm_digital_data_get(struct sr_scpi_dev_inst *scpi)
	347	{
	348	int result;
	349
	350	result = sr_scpi_send(scpi, ":WAVEFORM:FORMAT BYTE");
	351	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:RECORD 0");
	352	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:START 0");
	353	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:END 124999999");
	354	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:TRACE LOGIC");
	355	if (result == SR_OK) result = sr_scpi_send(scpi, ":WAVEFORM:SEND? 1");
356
357	return result;
358	}