]> sigrok.org Git - libsigrok.git/blame - src/hardware/korad-kaxxxxp/api.c
hp-3457a: fix potential NULL dereference
[libsigrok.git] / src / hardware / korad-kaxxxxp / api.c
CommitLineData
e75ee7de
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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2015 Hannu Vuolasaho <vuokkosetae@gmail.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 <config.h>
21#include "protocol.h"
22
d7083042
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23static const uint32_t scanopts[] = {
24 SR_CONF_CONN,
25 SR_CONF_SERIALCOMM,
26};
27
55fb76b3 28static const uint32_t drvopts[] = {
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29 SR_CONF_POWER_SUPPLY,
30};
31
d7083042 32static const uint32_t devopts[] = {
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33 SR_CONF_CONTINUOUS,
34 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
35 SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
d7083042
HV
36 SR_CONF_VOLTAGE | SR_CONF_GET,
37 SR_CONF_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
38 SR_CONF_CURRENT | SR_CONF_GET,
39 SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
40 SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET,
b16d975a 41 SR_CONF_REGULATION | SR_CONF_GET,
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42 SR_CONF_OVER_CURRENT_PROTECTION_ENABLED | SR_CONF_GET | SR_CONF_SET,
43 SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED | SR_CONF_GET | SR_CONF_SET,
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44};
45
16fc7ee2 46static const struct korad_kaxxxxp_model models[] = {
d7083042 47 /* Device enum, vendor, model, ID reply, channels, voltage, current */
ae9ca5b1
UH
48 {VELLEMAN_PS3005D, "Velleman", "PS3005D",
49 "VELLEMANPS3005DV2.0", 1, {0, 31, 0.01}, {0, 5, 0.001}},
50 {VELLEMAN_LABPS3005D, "Velleman", "LABPS3005D",
d7083042 51 "VELLEMANLABPS3005DV2.0", 1, {0, 31, 0.01}, {0, 5, 0.001}},
bcf9384d 52 {KORAD_KA3005P, "Korad", "KA3005P",
2c5bdf1b 53 "KORADKA3005PV2.0", 1, {0, 31, 0.01}, {0, 5, 0.001}},
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UH
54 /* Sometimes the KA3005P has an extra 0x01 after the ID. */
55 {KORAD_KA3005P_0X01, "Korad", "KA3005P",
56 "KORADKA3005PV2.0\x01", 1, {0, 31, 0.01}, {0, 5, 0.001}},
41802ca4
HM
57 {KORAD_KD3005P, "Korad", "KD3005P",
58 "KORAD KD3005P V2.0", 1, {0, 31, 0.01}, {0, 5, 0.001}},
9e9dba7b 59 ALL_ZERO
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60};
61
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62static GSList *scan(struct sr_dev_driver *di, GSList *options)
63{
d7083042 64 struct dev_context *devc;
43376f33 65 GSList *l;
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66 struct sr_dev_inst *sdi;
67 struct sr_config *src;
68 const char *conn, *serialcomm;
69 struct sr_serial_dev_inst *serial;
70 char reply[50];
71 int i, model_id;
72 unsigned int len;
e75ee7de 73
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HV
74 conn = NULL;
75 serialcomm = NULL;
e75ee7de 76
d7083042
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77 for (l = options; l; l = l->next) {
78 src = l->data;
79 switch (src->key) {
80 case SR_CONF_CONN:
81 conn = g_variant_get_string(src->data, NULL);
82 break;
83 case SR_CONF_SERIALCOMM:
84 serialcomm = g_variant_get_string(src->data, NULL);
85 break;
86 default:
87 sr_err("Unknown option %d, skipping.", src->key);
88 break;
89 }
90 }
91
92 if (!conn)
93 return NULL;
94 if (!serialcomm)
95 serialcomm = "9600/8n1";
96
97 serial = sr_serial_dev_inst_new(conn, serialcomm);
98 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
99 return NULL;
100
101 serial_flush(serial);
102
103 /* Get the device model. */
104 len = 0;
105 for (i = 0; models[i].id; i++) {
106 if (strlen(models[i].id) > len)
107 len = strlen(models[i].id);
108 }
109 memset(&reply, 0, sizeof(reply));
110 sr_dbg("Want max %d bytes.", len);
16fc7ee2 111 if ((korad_kaxxxxp_send_cmd(serial, "*IDN?") < 0))
d7083042
HV
112 return NULL;
113
114 /* i is used here for debug purposes only. */
16fc7ee2 115 if ((i = korad_kaxxxxp_read_chars(serial, len, reply)) < 0)
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116 return NULL;
117 sr_dbg("Received: %d, %s", i, reply);
118 model_id = -1;
119 for (i = 0; models[i].id; i++) {
120 if (!strcmp(models[i].id, reply))
121 model_id = i;
122 }
123 if (model_id < 0) {
124 sr_err("Unknown model ID '%s' detected, aborting.", reply);
125 return NULL;
126 }
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UH
127 sr_dbg("Found: %s %s (idx %d, ID '%s').", models[model_id].vendor,
128 models[model_id].name, model_id, models[model_id].id);
d7083042 129
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130 sdi = g_malloc0(sizeof(struct sr_dev_inst));
131 sdi->status = SR_ST_INACTIVE;
132 sdi->vendor = g_strdup(models[model_id].vendor);
133 sdi->model = g_strdup(models[model_id].name);
134 sdi->inst_type = SR_INST_SERIAL;
135 sdi->conn = serial;
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136
137 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1");
138
139 devc = g_malloc0(sizeof(struct dev_context));
597deef9 140 sr_sw_limits_init(&devc->limits);
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141 devc->model = &models[model_id];
142 devc->reply[5] = 0;
143 devc->req_sent_at = 0;
144 sdi->priv = devc;
145
146 /* Get current status of device. */
16fc7ee2 147 if (korad_kaxxxxp_get_all_values(serial, devc) < 0)
d7083042 148 goto exit_err;
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149
150 serial_close(serial);
e75ee7de 151
43376f33 152 return std_scan_complete(di, g_slist_append(NULL, sdi));
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153
154exit_err:
155 sr_dev_inst_free(sdi);
156 g_free(devc);
157 sr_dbg("Scan failed.");
158
159 return NULL;
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160}
161
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162static int config_get(uint32_t key, GVariant **data,
163 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
164{
d7083042 165 struct dev_context *devc;
e75ee7de 166
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167 (void)cg;
168
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169 if (!sdi || !data)
170 return SR_ERR_ARG;
171
172 devc = sdi->priv;
173
e75ee7de 174 switch (key) {
cd04f641
UH
175 case SR_CONF_LIMIT_SAMPLES:
176 case SR_CONF_LIMIT_MSEC:
597deef9 177 return sr_sw_limits_config_get(&devc->limits, key, data);
d7083042
HV
178 case SR_CONF_VOLTAGE:
179 *data = g_variant_new_double(devc->voltage);
180 break;
181 case SR_CONF_VOLTAGE_TARGET:
182 *data = g_variant_new_double(devc->voltage_max);
183 break;
184 case SR_CONF_CURRENT:
185 *data = g_variant_new_double(devc->current);
186 break;
187 case SR_CONF_CURRENT_LIMIT:
188 *data = g_variant_new_double(devc->current_max);
189 break;
190 case SR_CONF_ENABLED:
191 *data = g_variant_new_boolean(devc->output_enabled);
192 break;
b16d975a
HV
193 case SR_CONF_REGULATION:
194 /* Dual channel not supported. */
9e5366df 195 *data = g_variant_new_string((devc->cc_mode[0]) ? "CC" : "CV");
b16d975a 196 break;
c40ed60f 197 case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
9e5366df 198 *data = g_variant_new_boolean(devc->ocp_enabled);
c40ed60f
HV
199 break;
200 case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
9e5366df 201 *data = g_variant_new_boolean(devc->ovp_enabled);
c40ed60f 202 break;
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203 default:
204 return SR_ERR_NA;
205 }
206
d7083042 207 return SR_OK;
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208}
209
210static int config_set(uint32_t key, GVariant *data,
211 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
212{
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213 struct dev_context *devc;
214 double dval;
215 gboolean bval;
e75ee7de 216
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217 (void)cg;
218
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219 devc = sdi->priv;
220
e75ee7de 221 switch (key) {
d7083042 222 case SR_CONF_LIMIT_MSEC:
d7083042 223 case SR_CONF_LIMIT_SAMPLES:
597deef9 224 return sr_sw_limits_config_set(&devc->limits, key, data);
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225 case SR_CONF_VOLTAGE_TARGET:
226 dval = g_variant_get_double(data);
227 if (dval < devc->model->voltage[0] || dval > devc->model->voltage[1])
228 return SR_ERR_ARG;
229 devc->voltage_max = dval;
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UH
230 devc->target = KAXXXXP_VOLTAGE_MAX;
231 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
d7083042
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232 return SR_ERR;
233 break;
234 case SR_CONF_CURRENT_LIMIT:
235 dval = g_variant_get_double(data);
236 if (dval < devc->model->current[0] || dval > devc->model->current[1])
237 return SR_ERR_ARG;
238 devc->current_max = dval;
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UH
239 devc->target = KAXXXXP_CURRENT_MAX;
240 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
d7083042
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241 return SR_ERR;
242 break;
243 case SR_CONF_ENABLED:
244 bval = g_variant_get_boolean(data);
245 /* Set always so it is possible turn off with sigrok-cli. */
246 devc->output_enabled = bval;
16fc7ee2
UH
247 devc->target = KAXXXXP_OUTPUT;
248 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
d7083042 249 return SR_ERR;
c40ed60f
HV
250 break;
251 case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
252 bval = g_variant_get_boolean(data);
9e5366df 253 devc->ocp_enabled = bval;
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UH
254 devc->target = KAXXXXP_OCP;
255 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
c40ed60f
HV
256 return SR_ERR;
257 break;
258 case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
259 bval = g_variant_get_boolean(data);
9e5366df 260 devc->ovp_enabled = bval;
16fc7ee2
UH
261 devc->target = KAXXXXP_OVP;
262 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
c40ed60f 263 return SR_ERR;
d7083042 264 break;
e75ee7de 265 default:
d7083042 266 return SR_ERR_NA;
e75ee7de
HV
267 }
268
d7083042 269 return SR_OK;
e75ee7de
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270}
271
272static int config_list(uint32_t key, GVariant **data,
273 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
274{
d7083042 275 struct dev_context *devc;
d7083042 276
e66d1892 277 devc = (sdi) ? sdi->priv : NULL;
d7083042 278
e75ee7de 279 switch (key) {
e66d1892 280 case SR_CONF_SCAN_OPTIONS:
d7083042 281 case SR_CONF_DEVICE_OPTIONS:
e66d1892 282 return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
d7083042 283 case SR_CONF_VOLTAGE_TARGET:
54d471f4 284 *data = std_gvar_min_max_step_array(devc->model->voltage);
d7083042
HV
285 break;
286 case SR_CONF_CURRENT_LIMIT:
54d471f4 287 *data = std_gvar_min_max_step_array(devc->model->current);
d7083042 288 break;
e75ee7de
HV
289 default:
290 return SR_ERR_NA;
291 }
292
d7083042 293 return SR_OK;
e75ee7de
HV
294}
295
695dc859 296static int dev_acquisition_start(const struct sr_dev_inst *sdi)
e75ee7de 297{
d7083042
HV
298 struct dev_context *devc;
299 struct sr_serial_dev_inst *serial;
e75ee7de 300
d7083042 301 devc = sdi->priv;
d7083042 302
597deef9 303 sr_sw_limits_acquisition_start(&devc->limits);
bee2b016 304 std_session_send_df_header(sdi);
d7083042 305
d7083042
HV
306 devc->reply_pending = FALSE;
307 devc->req_sent_at = 0;
308 serial = sdi->conn;
309 serial_source_add(sdi->session, serial, G_IO_IN,
16fc7ee2
UH
310 KAXXXXP_POLL_INTERVAL_MS,
311 korad_kaxxxxp_receive_data, (void *)sdi);
e75ee7de
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312
313 return SR_OK;
314}
315
dd5c48a6 316static struct sr_dev_driver korad_kaxxxxp_driver_info = {
16fc7ee2
UH
317 .name = "korad-kaxxxxp",
318 .longname = "Korad KAxxxxP",
e75ee7de 319 .api_version = 1,
c2fdcc25 320 .init = std_init,
700d6b64 321 .cleanup = std_cleanup,
e75ee7de 322 .scan = scan,
c01bf34c 323 .dev_list = std_dev_list,
f778bf02 324 .dev_clear = std_dev_clear,
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HV
325 .config_get = config_get,
326 .config_set = config_set,
327 .config_list = config_list,
d7083042
HV
328 .dev_open = std_serial_dev_open,
329 .dev_close = std_serial_dev_close,
e75ee7de 330 .dev_acquisition_start = dev_acquisition_start,
4b1a9d5d 331 .dev_acquisition_stop = std_serial_dev_acquisition_stop,
e75ee7de
HV
332 .context = NULL,
333};
dd5c48a6 334SR_REGISTER_DEV_DRIVER(korad_kaxxxxp_driver_info);