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drivers: Factor out std_*_idx*().
[libsigrok.git] / src / hardware / cem-dt-885x / api.c
CommitLineData
8fa9368e
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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2013 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
6ec6c43b 20#include <config.h>
be733919 21#include <string.h>
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22#include "protocol.h"
23
7fb8279c 24#define SERIALCOMM "9600/8n1"
1beccaed 25
7fb8279c 26/* 23ms is the longest interval between tokens. */
1a46cc62 27#define MAX_SCAN_TIME_US (25 * 1000)
7fb8279c 28
a0e0bb41 29static const uint32_t scanopts[] = {
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30 SR_CONF_CONN,
31};
32
023c73ae 33static const uint32_t drvopts[] = {
7fb8279c 34 SR_CONF_SOUNDLEVELMETER,
d7125bfa
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35};
36
023c73ae 37static const uint32_t devopts[] = {
e91bb0a6 38 SR_CONF_CONTINUOUS,
023c73ae 39 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
5827f61b
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40 SR_CONF_SPL_WEIGHT_FREQ | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
41 SR_CONF_SPL_WEIGHT_TIME | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
42 SR_CONF_SPL_MEASUREMENT_RANGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
43 SR_CONF_DATALOG | SR_CONF_GET | SR_CONF_SET,
44 SR_CONF_HOLD_MAX | SR_CONF_GET | SR_CONF_SET,
45 SR_CONF_HOLD_MIN | SR_CONF_GET | SR_CONF_SET,
46 SR_CONF_POWER_OFF | SR_CONF_GET | SR_CONF_SET,
47 SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
7fb8279c
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48};
49
be733919
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50static const char *weight_freq[] = {
51 "A",
52 "C",
53};
7fb8279c 54
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55static const char *weight_time[] = {
56 "F",
57 "S",
58};
59
f157b2ee
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60static const uint64_t meas_ranges[][2] = {
61 { 30, 130 },
62 { 30, 80 },
63 { 50, 100 },
64 { 80, 130 },
65};
66
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67static const char *data_sources[] = {
68 "Live",
69 "Memory",
70};
8fa9368e 71
4f840ce9 72static GSList *scan(struct sr_dev_driver *di, GSList *options)
8fa9368e 73{
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74 struct dev_context *devc;
75 struct sr_config *src;
76 struct sr_serial_dev_inst *serial;
77 struct sr_dev_inst *sdi;
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78 GSList *l, *devices;
79 gint64 start;
80 const char *conn;
81 unsigned char c;
82
83 conn = NULL;
84 for (l = options; l; l = l->next) {
85 src = l->data;
86 if (src->key == SR_CONF_CONN)
87 conn = g_variant_get_string(src->data, NULL);
88 }
89 if (!conn)
90 return NULL;
91
91219afc 92 serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
8fa9368e 93
d7b269da 94 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
7fb8279c 95 return NULL;
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96
97 devices = NULL;
7fb8279c 98 start = g_get_monotonic_time();
1a46cc62 99 while (g_get_monotonic_time() - start < MAX_SCAN_TIME_US) {
d7b269da 100 if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
7fb8279c 101 /* Found one. */
aac29cc1 102 sdi = g_malloc0(sizeof(struct sr_dev_inst));
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103 sdi->status = SR_ST_INACTIVE;
104 sdi->vendor = g_strdup("CEM");
105 sdi->model = g_strdup("DT-885x");
f57d8ffe 106 devc = g_malloc0(sizeof(struct dev_context));
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107 devc->cur_mqflags = 0;
108 devc->recording = -1;
f157b2ee 109 devc->cur_meas_range = 0;
662172d4 110 devc->cur_data_source = DATA_SOURCE_LIVE;
cea26f6e 111 devc->enable_data_source_memory = FALSE;
91219afc 112 sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
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113 sdi->inst_type = SR_INST_SERIAL;
114 sdi->priv = devc;
5e23fcab 115 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
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116 devices = g_slist_append(devices, sdi);
117 break;
118 }
119 /* It takes about 1ms for a byte to come in. */
120 g_usleep(1000);
121 }
8fa9368e 122
7fb8279c 123 serial_close(serial);
8fa9368e 124
15a5bfe4 125 return std_scan_complete(di, devices);
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126}
127
dd7a72ea
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128static int config_get(uint32_t key, GVariant **data,
129 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
8fa9368e 130{
7fb8279c 131 struct dev_context *devc;
f157b2ee 132 uint64_t low, high;
a90e480c 133 int tmp, ret;
8fa9368e 134
53b4680f 135 (void)cg;
d3c74a6f 136
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137 if (!sdi)
138 return SR_ERR_ARG;
8fa9368e 139
7fb8279c 140 devc = sdi->priv;
a90e480c 141 ret = SR_OK;
8fa9368e 142 switch (key) {
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143 case SR_CONF_LIMIT_SAMPLES:
144 *data = g_variant_new_uint64(devc->limit_samples);
145 break;
e1af0e85 146 case SR_CONF_DATALOG:
0cd9107d
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147 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
148 *data = g_variant_new_boolean(tmp);
e1af0e85 149 break;
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150 case SR_CONF_SPL_WEIGHT_FREQ:
151 tmp = cem_dt_885x_weight_freq_get(sdi);
152 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
153 *data = g_variant_new_string("A");
154 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
155 *data = g_variant_new_string("C");
156 else
157 return SR_ERR;
158 break;
1487ce4f
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159 case SR_CONF_SPL_WEIGHT_TIME:
160 tmp = cem_dt_885x_weight_time_get(sdi);
161 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
162 *data = g_variant_new_string("F");
163 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
164 *data = g_variant_new_string("S");
165 else
166 return SR_ERR;
167 break;
a90e480c
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168 case SR_CONF_HOLD_MAX:
169 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
170 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
171 break;
172 case SR_CONF_HOLD_MIN:
173 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
174 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
175 break;
f157b2ee 176 case SR_CONF_SPL_MEASUREMENT_RANGE:
a162eeb2
UH
177 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK)
178 *data = std_gvar_tuple_u64(low, high);
f157b2ee 179 break;
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180 case SR_CONF_POWER_OFF:
181 *data = g_variant_new_boolean(FALSE);
182 break;
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183 case SR_CONF_DATA_SOURCE:
184 if (devc->cur_data_source == DATA_SOURCE_LIVE)
185 *data = g_variant_new_string("Live");
186 else
187 *data = g_variant_new_string("Memory");
188 break;
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189 default:
190 return SR_ERR_NA;
191 }
192
a90e480c 193 return ret;
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194}
195
dd7a72ea
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196static int config_set(uint32_t key, GVariant *data,
197 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
8fa9368e 198{
7fb8279c 199 struct dev_context *devc;
697fb6dd
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200 uint64_t tmp_u64;
201 int tmp, ret, idx;
8fa9368e 202
53b4680f 203 (void)cg;
d3c74a6f 204
b0baddef 205 devc = sdi->priv;
7fb8279c 206
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207 ret = SR_OK;
208 switch (key) {
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209 case SR_CONF_LIMIT_SAMPLES:
210 tmp_u64 = g_variant_get_uint64(data);
211 devc->limit_samples = tmp_u64;
212 ret = SR_OK;
213 break;
e1af0e85 214 case SR_CONF_DATALOG:
0cd9107d 215 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
e1af0e85 216 break;
be733919 217 case SR_CONF_SPL_WEIGHT_FREQ:
697fb6dd 218 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(weight_freq))) < 0)
be733919 219 return SR_ERR_ARG;
697fb6dd
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220 return cem_dt_885x_weight_freq_set(sdi, (weight_freq[idx][0] == 'A') ?
221 SR_MQFLAG_SPL_FREQ_WEIGHT_A : SR_MQFLAG_SPL_FREQ_WEIGHT_C);
1487ce4f 222 case SR_CONF_SPL_WEIGHT_TIME:
697fb6dd 223 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(weight_time))) < 0)
1487ce4f 224 return SR_ERR_ARG;
697fb6dd
UH
225 return cem_dt_885x_weight_time_set(sdi, (weight_time[idx][0] == 'F') ?
226 SR_MQFLAG_SPL_TIME_WEIGHT_F : SR_MQFLAG_SPL_TIME_WEIGHT_S);
a90e480c
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227 case SR_CONF_HOLD_MAX:
228 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
229 ret = cem_dt_885x_holdmode_set(sdi, tmp);
230 break;
231 case SR_CONF_HOLD_MIN:
232 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
233 ret = cem_dt_885x_holdmode_set(sdi, tmp);
234 break;
f157b2ee 235 case SR_CONF_SPL_MEASUREMENT_RANGE:
697fb6dd
UH
236 if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(meas_ranges))) < 0)
237 return SR_ERR_ARG;
238 return cem_dt_885x_meas_range_set(sdi, meas_ranges[idx][0], meas_ranges[idx][1]);
4c22355f
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239 case SR_CONF_POWER_OFF:
240 if (g_variant_get_boolean(data))
241 ret = cem_dt_885x_power_off(sdi);
242 break;
662172d4 243 case SR_CONF_DATA_SOURCE:
697fb6dd
UH
244 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(data_sources))) < 0)
245 return SR_ERR_ARG;
246 devc->cur_data_source = idx;
247 devc->enable_data_source_memory = (idx == DATA_SOURCE_MEMORY);
662172d4 248 break;
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249 default:
250 ret = SR_ERR_NA;
251 }
252
253 return ret;
254}
255
dd7a72ea
UH
256static int config_list(uint32_t key, GVariant **data,
257 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
8fa9368e 258{
e66d1892
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259 switch (key) {
260 case SR_CONF_SCAN_OPTIONS:
261 case SR_CONF_DEVICE_OPTIONS:
262 return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
263 case SR_CONF_SPL_WEIGHT_FREQ:
53012da6 264 *data = g_variant_new_strv(ARRAY_AND_SIZE(weight_freq));
e66d1892
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265 break;
266 case SR_CONF_SPL_WEIGHT_TIME:
53012da6 267 *data = g_variant_new_strv(ARRAY_AND_SIZE(weight_time));
e66d1892
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268 break;
269 case SR_CONF_SPL_MEASUREMENT_RANGE:
58ffcf97 270 *data = std_gvar_tuple_array(ARRAY_AND_SIZE(meas_ranges));
e66d1892
UH
271 break;
272 case SR_CONF_DATA_SOURCE:
53012da6 273 *data = g_variant_new_strv(ARRAY_AND_SIZE(data_sources));
e66d1892
UH
274 break;
275 default:
276 return SR_ERR_NA;
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277 }
278
a9010323 279 return SR_OK;
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280}
281
695dc859 282static int dev_acquisition_start(const struct sr_dev_inst *sdi)
8fa9368e 283{
e37c4b39
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284 struct dev_context *devc;
285 struct sr_serial_dev_inst *serial;
8fa9368e 286
208c1d35 287 devc = sdi->priv;
e37c4b39
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288 devc->state = ST_INIT;
289 devc->num_samples = 0;
290 devc->buf_len = 0;
291
bee2b016 292 std_session_send_df_header(sdi);
e37c4b39 293
e37c4b39 294 serial = sdi->conn;
102f1239
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295 serial_source_add(sdi->session, serial, G_IO_IN, 150,
296 cem_dt_885x_receive_data, (void *)sdi);
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297
298 return SR_OK;
299}
300
dd5c48a6 301static struct sr_dev_driver cem_dt_885x_driver_info = {
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302 .name = "cem-dt-885x",
303 .longname = "CEM DT-885x",
304 .api_version = 1,
c2fdcc25 305 .init = std_init,
700d6b64 306 .cleanup = std_cleanup,
8fa9368e 307 .scan = scan,
c01bf34c 308 .dev_list = std_dev_list,
f778bf02 309 .dev_clear = std_dev_clear,
8fa9368e
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310 .config_get = config_get,
311 .config_set = config_set,
312 .config_list = config_list,
8f878dc6 313 .dev_open = std_serial_dev_open,
bf2c987f 314 .dev_close = std_serial_dev_close,
8fa9368e 315 .dev_acquisition_start = dev_acquisition_start,
4b1a9d5d 316 .dev_acquisition_stop = std_serial_dev_acquisition_stop,
41812aca 317 .context = NULL,
8fa9368e 318};
dd5c48a6 319SR_REGISTER_DEV_DRIVER(cem_dt_885x_driver_info);