[libsigrok.git] / hardware / agilent-dmm / sched.c

/*
 * This file is part of the sigrok project.
 *
 * Copyright (C) 2012 Bert Vermeulen <bert@biot.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 <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "config.h"
#include "agilent-dmm.h"
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <math.h>


static void dispatch(const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	const struct agdmm_job *jobs;
	int64_t now;
	int i;

	devc = sdi->priv;
	jobs = devc->profile->jobs;
	now = g_get_monotonic_time() / 1000;
	for (i = 0; (&jobs[i])->interval; i++) {
		if (now - devc->jobqueue[i] > (&jobs[i])->interval) {
			sr_spew("agilent-dmm: running job %d", i);
			(&jobs[i])->send(sdi);
			devc->jobqueue[i] = now;
		}
	}

}

static void receive_line(const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	const struct agdmm_recv *recvs, *recv;
	GRegex *reg;
	GMatchInfo *match;
	int i;

	devc = sdi->priv;

	/* Strip CRLF */
	while (devc->buflen) {
		if (*(devc->buf + devc->buflen - 1) == '\r'
				|| *(devc->buf + devc->buflen - 1) == '\n')
			*(devc->buf + --devc->buflen) = '\0';
		else
			break;
	}
	sr_spew("agilent-dmm: received '%s'", devc->buf);

	recv = NULL;
	recvs = devc->profile->recvs;
	for (i = 0; (&recvs[i])->recv_regex; i++) {
		reg = g_regex_new((&recvs[i])->recv_regex, 0, 0, NULL);
		if (g_regex_match(reg, (char *)devc->buf, 0, &match)) {
			recv = &recvs[i];
			break;
		}
		g_match_info_unref(match);
		g_regex_unref(reg);
	}
	if (recv) {
		recv->recv(sdi, match);
		g_match_info_unref(match);
		g_regex_unref(reg);
	}

	/* Done with this. */
	devc->buflen = 0;

}

SR_PRIV int agdmm_receive_data(int fd, int revents, void *cb_data)
{
	const struct sr_dev_inst *sdi;
	struct dev_context *devc;
	int len;

	if (!(sdi = cb_data))
		return TRUE;

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

	if (revents == G_IO_IN) {
		/* Serial data arrived. */
		len = AGDMM_BUFSIZE - devc->buflen - 1;
		if (len > 0) {
			len = serial_read(fd, devc->buf + devc->buflen, len);
			if (len > 0) {
				devc->buflen += len;
				*(devc->buf + devc->buflen) = '\0';
				if (devc->buflen > 0 && *(devc->buf + devc->buflen - 1) == '\n')
					/* End of line */
					receive_line(sdi);
			}
		}
	}

	dispatch(sdi);

	if (devc->num_samples >= devc->limit_samples)
		sdi->driver->dev_acquisition_stop(sdi, cb_data);

	return TRUE;
}

static int agdmm_send(const struct sr_dev_inst *sdi, const char *cmd)
{
	struct dev_context *devc;
	char buf[32];

	devc = sdi->priv;
	sr_spew("agilent-dmm: sending '%s'", cmd);
	strncpy(buf, cmd, 28);
	if (!strncmp(buf, "*IDN?", 5))
		strncat(buf, "\r\n", 32);
	else
		strncat(buf, "\n\r\n", 32);
	if (serial_write(devc->serial->fd, buf, strlen(buf)) == -1) {
		sr_err("agilent-dmm: failed to send: %s", strerror(errno));
		return SR_ERR;
	}
	
	return SR_OK;
}

static int agdmm_ident_send(const struct sr_dev_inst *sdi)
{

	return agdmm_send(sdi, "*IDN?");
}

static int agdmm_ident_recv(const struct sr_dev_inst *sdi, GMatchInfo *match)
{

	(void)sdi;

	sr_spew("got ident '%s'", g_match_info_get_string(match));

	return SR_OK;
}

static int agdmm_stat_send(const struct sr_dev_inst *sdi)
{

	return agdmm_send(sdi, "STAT?");
}

static int agdmm_stat_recv(const struct sr_dev_inst *sdi, GMatchInfo *match)
{

	sr_spew("got stat '%s'", g_match_info_get_string(match));

	return SR_OK;
}

SR_PRIV int agdmm_fetc_send(const struct sr_dev_inst *sdi)
{

	return agdmm_send(sdi, "FETC?");
}

SR_PRIV int agdmm_fetc_recv(const struct sr_dev_inst *sdi, GMatchInfo *match)
{
	struct dev_context *devc;
	struct sr_datafeed_packet packet;
	struct sr_datafeed_analog analog;
	float fvalue;
	char *mstr, *eptr;

	sr_spew("agilent-dmm: FETC reply '%s'", g_match_info_get_string(match));
	devc = sdi->priv;

	if (devc->cur_mq == -1)
		/* Haven't seen configuration yet, so can't know what
		 * the fetched float means. Not really an error, we'll
		 * get metadata soon enough. */
		return SR_OK;

	if (!strcmp(g_match_info_get_string(match), "+9.90000000E+37")) {
		/* An invalid measurement shows up on the display as "O.L, but
		 * comes through like this. Since comparing 38-digit floats
		 * is rather problematic, we'll cut through this here. */
		fvalue = NAN;
	} else {
		mstr = g_match_info_fetch(match, 1);
		fvalue = strtof(mstr, &eptr);
		g_free(mstr);
		if (fvalue == 0.0 && eptr == mstr) {
			sr_err("agilent-dmm: invalid float");
			return SR_ERR;
		}
		if (devc->cur_divider > 0)
			fvalue /= devc->cur_divider;
	}

	memset(&analog, 0, sizeof(struct sr_datafeed_analog));
	analog.mq = devc->cur_mq;
	analog.unit = devc->cur_mq_unit;
	analog.mqflags = devc->cur_mq_flags;
	analog.num_samples = 1;
	analog.data = &fvalue;
	packet.type = SR_DF_ANALOG;
	packet.payload = &analog;
	sr_session_send(devc->cb_data, &packet);

	devc->num_samples++;

	return SR_OK;
}

SR_PRIV int agdmm_conf_send(const struct sr_dev_inst *sdi)
{

	return agdmm_send(sdi, "CONF?");
}

SR_PRIV int agdmm_conf_recv(const struct sr_dev_inst *sdi, GMatchInfo *match)
{
	struct dev_context *devc;
	char *mstr;

	sr_spew("got conf '%s'",  g_match_info_get_string(match));
	devc = sdi->priv;
	mstr = g_match_info_fetch(match, 1);
	if (!strcmp(mstr, "V")) {
		devc->cur_mq = SR_MQ_VOLTAGE;
		devc->cur_mq_unit = SR_UNIT_VOLT;
		devc->cur_mq_flags = 0;
		devc->cur_divider = 0;
	} else if(!strcmp(mstr, "MV")) {
		devc->cur_mq = SR_MQ_VOLTAGE;
		devc->cur_mq_unit = SR_UNIT_VOLT;
		devc->cur_mq_flags = 0;
		devc->cur_divider = 1000;
	} else if(!strcmp(mstr, "A")) {
		devc->cur_mq = SR_MQ_CURRENT;
		devc->cur_mq_unit = SR_UNIT_AMPERE;
		devc->cur_mq_flags = 0;
		devc->cur_divider = 0;
	} else if(!strcmp(mstr, "UA")) {
		devc->cur_mq = SR_MQ_CURRENT;
		devc->cur_mq_unit = SR_UNIT_AMPERE;
		devc->cur_mq_flags = 0;
		devc->cur_divider = 1000000;
	} else if(!strcmp(mstr, "FREQ")) {
		devc->cur_mq = SR_MQ_FREQUENCY;
		devc->cur_mq_unit = SR_UNIT_HERTZ;
		devc->cur_mq_flags = 0;
		devc->cur_divider = 0;
	} else if(!strcmp(mstr, "RES")) {
		devc->cur_mq = SR_MQ_RESISTANCE;
		devc->cur_mq_unit = SR_UNIT_OHM;
		devc->cur_mq_flags = 0;
		devc->cur_divider = 0;
	} else if(!strcmp(mstr, "CAP")) {
		devc->cur_mq = SR_MQ_CAPACITANCE;
		devc->cur_mq_unit = SR_UNIT_FARAD;
		devc->cur_mq_flags = 0;
		devc->cur_divider = 0;
	} else if(!strcmp(mstr, "DIOD")) {
		devc->cur_mq = SR_MQ_VOLTAGE;
		devc->cur_mq_unit = SR_UNIT_VOLT;
		devc->cur_mq_flags = SR_MQFLAG_DIODE;
		devc->cur_divider = 0;
	} else
		sr_dbg("agilent-dmm: unknown first argument");
	g_free(mstr);

	if (g_match_info_get_match_count(match) == 3) {
		mstr = g_match_info_fetch(match, 1);
		/* Third value, if present, is always AC or DC. */
		if (!strcmp(mstr, "AC"))
			devc->cur_acdc = 1;
		else if (!strcmp(mstr, "DC"))
			devc->cur_acdc = 2;
		else
			sr_dbg("agilent-dmm: unknown third argument");
		g_free(mstr);
	}

	return SR_OK;
}

SR_PRIV int agdmm_switch_recv(const struct sr_dev_inst *sdi, GMatchInfo *match)
{

	(void)sdi;

	sr_spew("got switch '%s'",  g_match_info_get_string(match));

	return SR_OK;
}


SR_PRIV const struct agdmm_job u123x_jobs[] = {
	{ 1000, agdmm_ident_send },
	{ 143, agdmm_stat_send },
	{ 1000, agdmm_conf_send },
	{ 143, agdmm_fetc_send },
	{ 0, NULL }
};

SR_PRIV const struct agdmm_recv u123x_recvs[] = {
	{ "^\"(\\d\\d.{18}\\d)\"$", agdmm_stat_recv },
	{ "^\\*([0-9])$", agdmm_switch_recv },
	{ "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", agdmm_fetc_recv },
	{ "^\"(V|MV|A|UA|FREQ),(\\d),(AC|DC)\"$", agdmm_conf_recv },
	{ "^\"(RES|CAP),(\\d)\"$", agdmm_conf_recv },
	{ "^\"(DIOD)\"$", agdmm_conf_recv },
	{ NULL, NULL }
};
Commit	Line	Data
e93cdf42 BV	1	/*
	2	* This file is part of the sigrok project.
	3	*
	4	* Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
	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 <glib.h>
	21	#include "libsigrok.h"
	22	#include "libsigrok-internal.h"
	23	#include "config.h"
	24	#include "agilent-dmm.h"
	25	#include <stdlib.h>
	26	#include <string.h>
	27	#include <errno.h>
	28	#include <math.h>
	29
	30
	31	static void dispatch(const struct sr_dev_inst *sdi)
	32	{
	33	struct dev_context *devc;
	34	const struct agdmm_job *jobs;
	35	int64_t now;
	36	int i;
	37
	38	devc = sdi->priv;
	39	jobs = devc->profile->jobs;
	40	now = g_get_monotonic_time() / 1000;
	41	for (i = 0; (&jobs[i])->interval; i++) {
	42	if (now - devc->jobqueue[i] > (&jobs[i])->interval) {
	43	sr_spew("agilent-dmm: running job %d", i);
	44	(&jobs[i])->send(sdi);
	45	devc->jobqueue[i] = now;
	46	}
	47	}
	48
	49	}
	50
	51	static void receive_line(const struct sr_dev_inst *sdi)
	52	{
	53	struct dev_context *devc;
	54	const struct agdmm_recv recvs, recv;
	55	GRegex *reg;
	56	GMatchInfo *match;
	57	int i;
	58
	59	devc = sdi->priv;
	60
	61	/* Strip CRLF */
	62	while (devc->buflen) {
	63	if (*(devc->buf + devc->buflen - 1) == '\r'
	64	\|\| *(devc->buf + devc->buflen - 1) == '\n')
65	*(devc->buf + --devc->buflen) = '\0';
66	else
67	break;
68	}
69	sr_spew("agilent-dmm: received '%s'", devc->buf);
70
71	recv = NULL;
72	recvs = devc->profile->recvs;
73	for (i = 0; (&recvs[i])->recv_regex; i++) {
74	reg = g_regex_new((&recvs[i])->recv_regex, 0, 0, NULL);
75	if (g_regex_match(reg, (char *)devc->buf, 0, &match)) {
76	recv = &recvs[i];
77	break;
78	}
79	g_match_info_unref(match);
80	g_regex_unref(reg);
81	}
82	if (recv) {
83	recv->recv(sdi, match);
84	g_match_info_unref(match);
85	g_regex_unref(reg);
86	}
87
88	/* Done with this. */
89	devc->buflen = 0;
90
91	}
92
93	SR_PRIV int agdmm_receive_data(int fd, int revents, void *cb_data)
94	{
95	const struct sr_dev_inst *sdi;
96	struct dev_context *devc;
97	int len;
98
99	if (!(sdi = cb_data))
100	return TRUE;
101
102	if (!(devc = sdi->priv))
103	return TRUE;
104
105	if (revents == G_IO_IN) {
106	/* Serial data arrived. */
107	len = AGDMM_BUFSIZE - devc->buflen - 1;
108	if (len > 0) {
109	len = serial_read(fd, devc->buf + devc->buflen, len);
110	if (len > 0) {
111	devc->buflen += len;
112	*(devc->buf + devc->buflen) = '\0';
113	if (devc->buflen > 0 && *(devc->buf + devc->buflen - 1) == '\n')
114	/* End of line */
115	receive_line(sdi);
116	}
117	}
118	}
119
120	dispatch(sdi);
121
122	if (devc->num_samples >= devc->limit_samples)
123	sdi->driver->dev_acquisition_stop(sdi, cb_data);
124
125	return TRUE;
126	}
127
128	static int agdmm_send(const struct sr_dev_inst sdi, const char cmd)
129	{
130	struct dev_context *devc;
131	char buf[32];
132
133	devc = sdi->priv;
134	sr_spew("agilent-dmm: sending '%s'", cmd);
135	strncpy(buf, cmd, 28);
136	if (!strncmp(buf, "*IDN?", 5))
137	strncat(buf, "\r\n", 32);
138	else
139	strncat(buf, "\n\r\n", 32);
140	if (serial_write(devc->serial->fd, buf, strlen(buf)) == -1) {
141	sr_err("agilent-dmm: failed to send: %s", strerror(errno));
142	return SR_ERR;
143	}
144
145	return SR_OK;
146	}
147
148	static int agdmm_ident_send(const struct sr_dev_inst *sdi)
149	{
150
151	return agdmm_send(sdi, "*IDN?");
152	}
153
154	static int agdmm_ident_recv(const struct sr_dev_inst sdi, GMatchInfo match)
155	{
156
157	(void)sdi;
158
159	sr_spew("got ident '%s'", g_match_info_get_string(match));
160
161	return SR_OK;
162	}
163
164	static int agdmm_stat_send(const struct sr_dev_inst *sdi)
165	{
166
167	return agdmm_send(sdi, "STAT?");
168	}
169
170	static int agdmm_stat_recv(const struct sr_dev_inst sdi, GMatchInfo match)
171	{
172
173	sr_spew("got stat '%s'", g_match_info_get_string(match));
174
175	return SR_OK;
176	}
177
178	SR_PRIV int agdmm_fetc_send(const struct sr_dev_inst *sdi)
179	{
180
181	return agdmm_send(sdi, "FETC?");
182	}
183
184	SR_PRIV int agdmm_fetc_recv(const struct sr_dev_inst sdi, GMatchInfo match)
185	{
186	struct dev_context *devc;
187	struct sr_datafeed_packet packet;
188	struct sr_datafeed_analog analog;
189	float fvalue;
190	char mstr, eptr;
191
192	sr_spew("agilent-dmm: FETC reply '%s'", g_match_info_get_string(match));
193	devc = sdi->priv;
194
195	if (devc->cur_mq == -1)
196	/* Haven't seen configuration yet, so can't know what
197	* the fetched float means. Not really an error, we'll
198	* get metadata soon enough. */
199	return SR_OK;
200
201	if (!strcmp(g_match_info_get_string(match), "+9.90000000E+37")) {
202	/* An invalid measurement shows up on the display as "O.L, but
203	* comes through like this. Since comparing 38-digit floats
204	* is rather problematic, we'll cut through this here. */
205	fvalue = NAN;
206	} else {
207	mstr = g_match_info_fetch(match, 1);
208	fvalue = strtof(mstr, &eptr);
209	g_free(mstr);
210	if (fvalue == 0.0 && eptr == mstr) {
211	sr_err("agilent-dmm: invalid float");
212	return SR_ERR;
213	}
214	if (devc->cur_divider > 0)
215	fvalue /= devc->cur_divider;
216	}
217
218	memset(&analog, 0, sizeof(struct sr_datafeed_analog));
219	analog.mq = devc->cur_mq;
220	analog.unit = devc->cur_mq_unit;
221	analog.mqflags = devc->cur_mq_flags;
222	analog.num_samples = 1;
223	analog.data = &fvalue;
224	packet.type = SR_DF_ANALOG;
225	packet.payload = &analog;
226	sr_session_send(devc->cb_data, &packet);
227
228	devc->num_samples++;
229
230	return SR_OK;
231	}
232
233	SR_PRIV int agdmm_conf_send(const struct sr_dev_inst *sdi)
234	{
235
236	return agdmm_send(sdi, "CONF?");
237	}
238
239	SR_PRIV int agdmm_conf_recv(const struct sr_dev_inst sdi, GMatchInfo match)
240	{
241	struct dev_context *devc;
242	char *mstr;
243
244	sr_spew("got conf '%s'", g_match_info_get_string(match));
245	devc = sdi->priv;
246	mstr = g_match_info_fetch(match, 1);
247	if (!strcmp(mstr, "V")) {
248	devc->cur_mq = SR_MQ_VOLTAGE;
249	devc->cur_mq_unit = SR_UNIT_VOLT;
250	devc->cur_mq_flags = 0;
251	devc->cur_divider = 0;
252	} else if(!strcmp(mstr, "MV")) {
253	devc->cur_mq = SR_MQ_VOLTAGE;
254	devc->cur_mq_unit = SR_UNIT_VOLT;
255	devc->cur_mq_flags = 0;
256	devc->cur_divider = 1000;
257	} else if(!strcmp(mstr, "A")) {
258	devc->cur_mq = SR_MQ_CURRENT;
259	devc->cur_mq_unit = SR_UNIT_AMPERE;
260	devc->cur_mq_flags = 0;
261	devc->cur_divider = 0;
262	} else if(!strcmp(mstr, "UA")) {
263	devc->cur_mq = SR_MQ_CURRENT;
264	devc->cur_mq_unit = SR_UNIT_AMPERE;
265	devc->cur_mq_flags = 0;
266	devc->cur_divider = 1000000;
267	} else if(!strcmp(mstr, "FREQ")) {
268	devc->cur_mq = SR_MQ_FREQUENCY;
269	devc->cur_mq_unit = SR_UNIT_HERTZ;
270	devc->cur_mq_flags = 0;
271	devc->cur_divider = 0;
272	} else if(!strcmp(mstr, "RES")) {
273	devc->cur_mq = SR_MQ_RESISTANCE;
274	devc->cur_mq_unit = SR_UNIT_OHM;
275	devc->cur_mq_flags = 0;
276	devc->cur_divider = 0;
277	} else if(!strcmp(mstr, "CAP")) {
278	devc->cur_mq = SR_MQ_CAPACITANCE;
279	devc->cur_mq_unit = SR_UNIT_FARAD;
280	devc->cur_mq_flags = 0;
281	devc->cur_divider = 0;
282	} else if(!strcmp(mstr, "DIOD")) {
283	devc->cur_mq = SR_MQ_VOLTAGE;
284	devc->cur_mq_unit = SR_UNIT_VOLT;
285	devc->cur_mq_flags = SR_MQFLAG_DIODE;
286	devc->cur_divider = 0;
287	} else
288	sr_dbg("agilent-dmm: unknown first argument");
289	g_free(mstr);
290
291	if (g_match_info_get_match_count(match) == 3) {
292	mstr = g_match_info_fetch(match, 1);
293	/* Third value, if present, is always AC or DC. */
294	if (!strcmp(mstr, "AC"))
295	devc->cur_acdc = 1;
296	else if (!strcmp(mstr, "DC"))
297	devc->cur_acdc = 2;
298	else
299	sr_dbg("agilent-dmm: unknown third argument");
300	g_free(mstr);
301	}
302
303	return SR_OK;
304	}
305
306	SR_PRIV int agdmm_switch_recv(const struct sr_dev_inst sdi, GMatchInfo match)
307	{
308
309	(void)sdi;
310
311	sr_spew("got switch '%s'", g_match_info_get_string(match));
312
313	return SR_OK;
314	}
315
316
317	SR_PRIV const struct agdmm_job u123x_jobs[] = {
318	{ 1000, agdmm_ident_send },
319	{ 143, agdmm_stat_send },
320	{ 1000, agdmm_conf_send },
321	{ 143, agdmm_fetc_send },
322	{ 0, NULL }
323	};
324
325	SR_PRIV const struct agdmm_recv u123x_recvs[] = {
326	{ "^\"(\\d\\d.{18}\\d)\"$", agdmm_stat_recv },
327	{ "^\\*([0-9])$", agdmm_switch_recv },
328	{ "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", agdmm_fetc_recv },
329	{ "^\"(V\|MV\|A\|UA\|FREQ),(\\d),(AC\|DC)\"$", agdmm_conf_recv },
330	{ "^\"(RES\|CAP),(\\d)\"$", agdmm_conf_recv },
331	{ "^\"(DIOD)\"$", agdmm_conf_recv },
332	{ NULL, NULL }
333	};
334
335