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e93cdf42 1/*
50985c20 2 * This file is part of the libsigrok project.
e93cdf42
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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>
e93cdf42
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21#include <sys/types.h>
22#include <sys/stat.h>
23#include <fcntl.h>
24#include <string.h>
25#include <errno.h>
6f22a8ef
UH
26#include "libsigrok.h"
27#include "libsigrok-internal.h"
28#include "agilent-dmm.h"
e93cdf42 29
a0e0bb41 30static const uint32_t scanopts[] = {
1953564a
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31 SR_CONF_CONN,
32 SR_CONF_SERIALCOMM,
e93cdf42
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33};
34
f9dada0b 35static const uint32_t drvopts[] = {
1953564a 36 SR_CONF_MULTIMETER,
f9dada0b
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37};
38
39static const uint32_t devopts[] = {
40 SR_CONF_CONTINUOUS | SR_CONF_SET,
5827f61b
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41 SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
42 SR_CONF_LIMIT_MSEC | SR_CONF_SET,
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43};
44
f857bd92 45extern const struct agdmm_job agdmm_jobs_u12xx[];
8c0152f2 46extern const struct agdmm_recv agdmm_recvs_u123x[];
4edba404 47extern const struct agdmm_recv agdmm_recvs_u124x[];
8c0152f2 48extern const struct agdmm_recv agdmm_recvs_u125x[];
e93cdf42 49
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50/* This works on all the Agilent U12xxA series, although the
51 * U127xA can apparently also run at 19200/8n1. */
52#define SERIALCOMM "9600/8n1"
53
e93cdf42 54static const struct agdmm_profile supported_agdmm[] = {
f857bd92
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55 { AGILENT_U1231, "U1231A", agdmm_jobs_u12xx, agdmm_recvs_u123x },
56 { AGILENT_U1232, "U1232A", agdmm_jobs_u12xx, agdmm_recvs_u123x },
57 { AGILENT_U1233, "U1233A", agdmm_jobs_u12xx, agdmm_recvs_u123x },
58
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59 { AGILENT_U1241, "U1241A", agdmm_jobs_u12xx, agdmm_recvs_u124x },
60 { AGILENT_U1242, "U1242A", agdmm_jobs_u12xx, agdmm_recvs_u124x },
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61 { AGILENT_U1241, "U1241B", agdmm_jobs_u12xx, agdmm_recvs_u124x },
62 { AGILENT_U1242, "U1242B", agdmm_jobs_u12xx, agdmm_recvs_u124x },
4edba404 63
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64 { AGILENT_U1251, "U1251A", agdmm_jobs_u12xx, agdmm_recvs_u125x },
65 { AGILENT_U1252, "U1252A", agdmm_jobs_u12xx, agdmm_recvs_u125x },
66 { AGILENT_U1253, "U1253A", agdmm_jobs_u12xx, agdmm_recvs_u125x },
67 { AGILENT_U1251, "U1251B", agdmm_jobs_u12xx, agdmm_recvs_u125x },
68 { AGILENT_U1252, "U1252B", agdmm_jobs_u12xx, agdmm_recvs_u125x },
69 { AGILENT_U1253, "U1253B", agdmm_jobs_u12xx, agdmm_recvs_u125x },
70 ALL_ZERO
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71};
72
73SR_PRIV struct sr_dev_driver agdmm_driver_info;
74static struct sr_dev_driver *di = &agdmm_driver_info;
75
6078d2c9 76static int init(struct sr_context *sr_ctx)
e93cdf42 77{
f6beaac5 78 return std_init(sr_ctx, di, LOG_PREFIX);
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79}
80
6078d2c9 81static GSList *scan(GSList *options)
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82{
83 struct sr_dev_inst *sdi;
84 struct drv_context *drvc;
85 struct dev_context *devc;
1987b8d6 86 struct sr_config *src;
ba7dd8bb 87 struct sr_channel *ch;
109a3ba4 88 struct sr_serial_dev_inst *serial;
e93cdf42 89 GSList *l, *devices;
109a3ba4 90 int len, i;
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91 const char *conn, *serialcomm;
92 char *buf, **tokens;
93
94 drvc = di->priv;
95 drvc->instances = NULL;
96
97 devices = NULL;
98 conn = serialcomm = NULL;
99 for (l = options; l; l = l->next) {
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100 src = l->data;
101 switch (src->key) {
1953564a 102 case SR_CONF_CONN:
e44ac12a 103 conn = g_variant_get_string(src->data, NULL);
e93cdf42 104 break;
1953564a 105 case SR_CONF_SERIALCOMM:
e44ac12a 106 serialcomm = g_variant_get_string(src->data, NULL);
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107 break;
108 }
109 }
74ac7d7f 110 if (!conn)
e93cdf42 111 return NULL;
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112 if (!serialcomm)
113 serialcomm = SERIALCOMM;
e93cdf42 114
91219afc 115 serial = sr_serial_dev_inst_new(conn, serialcomm);
e93cdf42 116
64c536be 117 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
e93cdf42 118 return NULL;
e93cdf42 119
109a3ba4 120 serial_flush(serial);
95779b43 121 if (serial_write_blocking(serial, "*IDN?\r\n", 7, SERIAL_WRITE_TIMEOUT_MS) < 7) {
081c214e 122 sr_err("Unable to send identification string.");
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123 return NULL;
124 }
125
126 len = 128;
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127 if (!(buf = g_try_malloc(len))) {
128 sr_err("Serial buffer malloc failed.");
129 return NULL;
130 }
ee2bcdfc 131 serial_readline(serial, &buf, &len, 250);
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132 if (!len)
133 return NULL;
134
135 tokens = g_strsplit(buf, ",", 4);
136 if (!strcmp("Agilent Technologies", tokens[0])
fbf07e02 137 && tokens[1] && tokens[2] && tokens[3]) {
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138 for (i = 0; supported_agdmm[i].model; i++) {
139 if (strcmp(supported_agdmm[i].modelname, tokens[1]))
140 continue;
aac29cc1 141 sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be
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142 sdi->status = SR_ST_INACTIVE;
143 sdi->vendor = g_strdup("Agilent");
144 sdi->model = g_strdup(tokens[1]);
145 sdi->version = g_strdup(tokens[3]);
f57d8ffe 146 devc = g_malloc0(sizeof(struct dev_context));
e93cdf42 147 devc->profile = &supported_agdmm[i];
e93cdf42 148 devc->cur_mq = -1;
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149 sdi->inst_type = SR_INST_SERIAL;
150 sdi->conn = serial;
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151 sdi->priv = devc;
152 sdi->driver = di;
c368e6f3 153 ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
ba7dd8bb 154 sdi->channels = g_slist_append(sdi->channels, ch);
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155 drvc->instances = g_slist_append(drvc->instances, sdi);
156 devices = g_slist_append(devices, sdi);
157 break;
158 }
159 }
160 g_strfreev(tokens);
161 g_free(buf);
162
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163 serial_close(serial);
164 if (!devices)
165 sr_serial_dev_inst_free(serial);
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166
167 return devices;
168}
169
6078d2c9 170static GSList *dev_list(void)
e93cdf42 171{
0e94d524 172 return ((struct drv_context *)(di->priv))->instances;
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173}
174
6078d2c9 175static int cleanup(void)
e93cdf42 176{
a6630742 177 return std_dev_clear(di, NULL);
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178}
179
584560f1 180static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
53b4680f 181 const struct sr_channel_group *cg)
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182{
183 struct dev_context *devc;
184
53b4680f 185 (void)cg;
8f996b89 186
e93cdf42 187 if (sdi->status != SR_ST_ACTIVE)
e73ffd42 188 return SR_ERR_DEV_CLOSED;
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189
190 if (!(devc = sdi->priv)) {
38d326e8 191 sr_err("sdi->priv was NULL.");
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192 return SR_ERR_BUG;
193 }
194
584560f1 195 switch (key) {
1953564a 196 case SR_CONF_LIMIT_MSEC:
e93cdf42 197 /* TODO: not yet implemented */
e44ac12a 198 if (g_variant_get_uint64(data) == 0) {
38d326e8 199 sr_err("LIMIT_MSEC can't be 0.");
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200 return SR_ERR;
201 }
e44ac12a 202 devc->limit_msec = g_variant_get_uint64(data);
38d326e8 203 sr_dbg("Setting time limit to %" PRIu64 "ms.",
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204 devc->limit_msec);
205 break;
1953564a 206 case SR_CONF_LIMIT_SAMPLES:
e44ac12a 207 devc->limit_samples = g_variant_get_uint64(data);
38d326e8 208 sr_dbg("Setting sample limit to %" PRIu64 ".",
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209 devc->limit_samples);
210 break;
211 default:
bd6fbf62 212 return SR_ERR_NA;
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213 }
214
215 return SR_OK;
216}
217
584560f1 218static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 219 const struct sr_channel_group *cg)
a1c743fc 220{
a1c743fc 221 (void)sdi;
53b4680f 222 (void)cg;
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223
224 switch (key) {
0d485e30 225 case SR_CONF_SCAN_OPTIONS:
584560f1 226 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
a0e0bb41 227 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
0d485e30 228 break;
9a6517d1 229 case SR_CONF_DEVICE_OPTIONS:
ce4bd052
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230 if (!sdi)
231 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f9dada0b 232 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
ce4bd052
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233 else
234 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f9dada0b 235 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
9a6517d1 236 break;
a1c743fc 237 default:
bd6fbf62 238 return SR_ERR_NA;
a1c743fc
BV
239 }
240
241 return SR_OK;
242}
243
6078d2c9 244static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
e93cdf42 245{
e93cdf42 246 struct dev_context *devc;
fb3a1505 247 struct sr_serial_dev_inst *serial;
e93cdf42 248
e73ffd42
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249 if (sdi->status != SR_ST_ACTIVE)
250 return SR_ERR_DEV_CLOSED;
251
e93cdf42 252 if (!(devc = sdi->priv)) {
38d326e8 253 sr_err("sdi->priv was NULL.");
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254 return SR_ERR_BUG;
255 }
256
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257 devc->cb_data = cb_data;
258
259 /* Send header packet to the session bus. */
29a27196 260 std_session_send_df_header(cb_data, LOG_PREFIX);
e93cdf42 261
e93cdf42 262 /* Poll every 100ms, or whenever some data comes in. */
fb3a1505 263 serial = sdi->conn;
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264 serial_source_add(sdi->session, serial, G_IO_IN, 100,
265 agdmm_receive_data, (void *)sdi);
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266
267 return SR_OK;
268}
269
6078d2c9 270static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
e93cdf42 271{
d43b0908 272 return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
29a27196 273 sdi->conn, LOG_PREFIX);
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274}
275
276SR_PRIV struct sr_dev_driver agdmm_driver_info = {
277 .name = "agilent-dmm",
278 .longname = "Agilent U12xx series DMMs",
279 .api_version = 1,
6078d2c9
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280 .init = init,
281 .cleanup = cleanup,
282 .scan = scan,
283 .dev_list = dev_list,
a6630742 284 .dev_clear = NULL,
6fab7b8f 285 .config_get = NULL,
035a1078 286 .config_set = config_set,
a1c743fc 287 .config_list = config_list,
854434de 288 .dev_open = std_serial_dev_open,
bf2c987f 289 .dev_close = std_serial_dev_close,
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290 .dev_acquisition_start = dev_acquisition_start,
291 .dev_acquisition_stop = dev_acquisition_stop,
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292 .priv = NULL,
293};