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std: Add std_serial_dev_open().
[libsigrok.git] / hardware / mic-985xx / api.c
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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
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 2 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, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include "protocol.h"
22
2c2be401 23static const int32_t hwopts[] = {
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24 SR_CONF_CONN,
25 SR_CONF_SERIALCOMM,
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26};
27
2c2be401 28static const int32_t hwcaps[] = {
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29 SR_CONF_THERMOMETER,
30 SR_CONF_HYGROMETER,
31 SR_CONF_LIMIT_SAMPLES,
32 SR_CONF_LIMIT_MSEC,
33 SR_CONF_CONTINUOUS,
0cd8e231 34};
7ec5b549 35
6f3e5335 36SR_PRIV struct sr_dev_driver mic_98581_driver_info;
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37SR_PRIV struct sr_dev_driver mic_98583_driver_info;
38
39SR_PRIV const struct mic_dev_info mic_devs[] = {
40 {
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41 "MIC", "98581", "38400/8n2", 32000, TRUE, FALSE, 6,
42 packet_valid_temp,
43 &mic_98581_driver_info, receive_data_MIC_98581,
44 },
45 {
46 "MIC", "98583", "38400/8n2", 32000, TRUE, TRUE, 10,
47 packet_valid_temp_hum,
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48 &mic_98583_driver_info, receive_data_MIC_98583,
49 },
50};
51
3b412e3a 52static int dev_clear(int idx)
7ec5b549 53{
25e7adad 54 return std_dev_clear(mic_devs[idx].di, NULL);
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55}
56
6078d2c9 57static int init(struct sr_context *sr_ctx, int idx)
7ec5b549 58{
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59 sr_dbg("Selected '%s' subdriver.", mic_devs[idx].di->name);
60
f6beaac5 61 return std_init(sr_ctx, mic_devs[idx].di, LOG_PREFIX);
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62}
63
6078d2c9 64static GSList *mic_scan(const char *conn, const char *serialcomm, int idx)
7ec5b549 65{
0cd8e231 66 struct sr_dev_inst *sdi;
7ec5b549 67 struct drv_context *drvc;
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68 struct dev_context *devc;
69 struct sr_probe *probe;
70 struct sr_serial_dev_inst *serial;
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71 GSList *devices;
72
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73 if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
74 return NULL;
7ec5b549 75
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76 if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
77 return NULL;
78
79 drvc = mic_devs[idx].di->priv;
7ec5b549 80 devices = NULL;
0cd8e231 81 serial_flush(serial);
7ec5b549 82
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83 /* TODO: Query device type. */
84 // ret = mic_cmd_get_device_info(serial);
85
86 sr_info("Found device on port %s.", conn);
87
88 /* TODO: Fill in version from protocol response. */
89 if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, mic_devs[idx].vendor,
90 mic_devs[idx].device, "")))
91 goto scan_cleanup;
92
93 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
94 sr_err("Device context malloc failed.");
95 goto scan_cleanup;
96 }
97
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98 sdi->inst_type = SR_INST_SERIAL;
99 sdi->conn = serial;
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100
101 sdi->priv = devc;
102 sdi->driver = mic_devs[idx].di;
103
104 if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "Temperature")))
105 goto scan_cleanup;
106 sdi->probes = g_slist_append(sdi->probes, probe);
107
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108 if (mic_devs[idx].has_humidity) {
109 if (!(probe = sr_probe_new(1, SR_PROBE_ANALOG, TRUE, "Humidity")))
110 goto scan_cleanup;
111 sdi->probes = g_slist_append(sdi->probes, probe);
112 }
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113
114 drvc->instances = g_slist_append(drvc->instances, sdi);
115 devices = g_slist_append(devices, sdi);
116
117scan_cleanup:
118 serial_close(serial);
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119
120 return devices;
121}
122
6078d2c9 123static GSList *scan(GSList *options, int idx)
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124{
125 struct sr_config *src;
126 GSList *l, *devices;
127 const char *conn, *serialcomm;
128
129 conn = serialcomm = NULL;
130 for (l = options; l; l = l->next) {
131 src = l->data;
132 switch (src->key) {
133 case SR_CONF_CONN:
2c2be401 134 conn = g_variant_get_string(src->data, NULL);
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135 break;
136 case SR_CONF_SERIALCOMM:
06c45a66 137 serialcomm = g_variant_get_string(src->data, NULL);
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138 break;
139 }
140 }
141 if (!conn)
142 return NULL;
143
144 if (serialcomm) {
145 /* Use the provided comm specs. */
6078d2c9 146 devices = mic_scan(conn, serialcomm, idx);
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147 } else {
148 /* Try the default. */
6078d2c9 149 devices = mic_scan(conn, mic_devs[idx].conn, idx);
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150 }
151
152 return devices;
153}
154
6078d2c9 155static GSList *dev_list(int idx)
7ec5b549 156{
0e94d524 157 return ((struct drv_context *)(mic_devs[idx].di->priv))->instances;
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158}
159
6078d2c9 160static int dev_open(struct sr_dev_inst *sdi)
7ec5b549 161{
886bd5e0 162 struct sr_serial_dev_inst *serial;
7ec5b549 163
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164 serial = sdi->conn;
165 if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
0cd8e231 166 return SR_ERR;
7ec5b549 167
0cd8e231 168 sdi->status = SR_ST_ACTIVE;
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169
170 return SR_OK;
171}
172
6078d2c9 173static int cleanup(int idx)
7ec5b549 174{
3b412e3a 175 return dev_clear(idx);
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176}
177
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178static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
179 const struct sr_probe_group *probe_group)
7ec5b549 180{
0cd8e231 181 struct dev_context *devc;
7ec5b549 182
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183 (void)probe_group;
184
0cd8e231 185 if (sdi->status != SR_ST_ACTIVE)
e73ffd42 186 return SR_ERR_DEV_CLOSED;
7ec5b549 187
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188 devc = sdi->priv;
189
7ec5b549 190 switch (id) {
0cd8e231 191 case SR_CONF_LIMIT_SAMPLES:
2c2be401 192 devc->limit_samples = g_variant_get_uint64(data);
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193 sr_dbg("Setting sample limit to %" PRIu64 ".",
194 devc->limit_samples);
195 break;
196 case SR_CONF_LIMIT_MSEC:
2c2be401 197 devc->limit_msec = g_variant_get_uint64(data);
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198 sr_dbg("Setting time limit to %" PRIu64 "ms.",
199 devc->limit_msec);
200 break;
7ec5b549 201 default:
bd6fbf62 202 return SR_ERR_NA;
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203 }
204
0cd8e231 205 return SR_OK;
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206}
207
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208static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
209 const struct sr_probe_group *probe_group)
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210{
211 (void)sdi;
8f996b89 212 (void)probe_group;
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213
214 switch (key) {
0cd8e231 215 case SR_CONF_SCAN_OPTIONS:
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216 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
217 hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
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218 break;
219 case SR_CONF_DEVICE_OPTIONS:
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220 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
221 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
0cd8e231 222 break;
7ec5b549 223 default:
bd6fbf62 224 return SR_ERR_NA;
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225 }
226
227 return SR_OK;
228}
229
6078d2c9 230static int dev_acquisition_start(const struct sr_dev_inst *sdi,
0cd8e231 231 void *cb_data, int idx)
7ec5b549 232{
0cd8e231 233 struct dev_context *devc;
886bd5e0 234 struct sr_serial_dev_inst *serial;
0cd8e231 235
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236 if (sdi->status != SR_ST_ACTIVE)
237 return SR_ERR_DEV_CLOSED;
0cd8e231 238
e73ffd42 239 devc = sdi->priv;
0cd8e231 240 devc->cb_data = cb_data;
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241 devc->num_samples = 0;
242 devc->starttime = g_get_monotonic_time();
243
244 /* Send header packet to the session bus. */
29a27196 245 std_session_send_df_header(cb_data, LOG_PREFIX);
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246
247 /* Poll every 100ms, or whenever some data comes in. */
886bd5e0 248 serial = sdi->conn;
abc4b335 249 serial_source_add(serial, G_IO_IN, 100,
0cd8e231 250 mic_devs[idx].receive_data, (void *)sdi);
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251
252 return SR_OK;
253}
254
6078d2c9 255static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
7ec5b549 256{
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257 return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
258 sdi->conn, LOG_PREFIX);
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259}
260
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261/* Driver-specific API function wrappers */
262#define HW_INIT(X) \
6078d2c9 263static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); }
0cd8e231 264#define HW_CLEANUP(X) \
6078d2c9 265static int cleanup_##X(void) { return cleanup(X); }
0cd8e231 266#define HW_SCAN(X) \
6078d2c9 267static GSList *scan_##X(GSList *options) { return scan(options, X); }
0cd8e231 268#define HW_DEV_LIST(X) \
6078d2c9 269static GSList *dev_list_##X(void) { return dev_list(X); }
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270#define HW_DEV_CLEAR(X) \
271static int dev_clear_##X(void) { return dev_clear(X); }
0cd8e231 272#define HW_DEV_ACQUISITION_START(X) \
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273static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \
274void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); }
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275
276/* Driver structs and API function wrappers */
277#define DRV(ID, ID_UPPER, NAME, LONGNAME) \
278HW_INIT(ID_UPPER) \
279HW_CLEANUP(ID_UPPER) \
280HW_SCAN(ID_UPPER) \
281HW_DEV_LIST(ID_UPPER) \
3b412e3a 282HW_DEV_CLEAR(ID_UPPER) \
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283HW_DEV_ACQUISITION_START(ID_UPPER) \
284SR_PRIV struct sr_dev_driver ID##_driver_info = { \
285 .name = NAME, \
286 .longname = LONGNAME, \
287 .api_version = 1, \
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288 .init = init_##ID_UPPER, \
289 .cleanup = cleanup_##ID_UPPER, \
290 .scan = scan_##ID_UPPER, \
291 .dev_list = dev_list_##ID_UPPER, \
3b412e3a 292 .dev_clear = dev_clear_##ID_UPPER, \
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293 .config_get = NULL, \
294 .config_set = config_set, \
295 .config_list = config_list, \
6078d2c9 296 .dev_open = dev_open, \
bf2c987f 297 .dev_close = std_serial_dev_close, \
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298 .dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
299 .dev_acquisition_stop = dev_acquisition_stop, \
0cd8e231 300 .priv = NULL, \
7ec5b549 301};
0cd8e231 302
6f3e5335 303DRV(mic_98581, MIC_98581, "mic-98581", "MIC 98581")
0cd8e231 304DRV(mic_98583, MIC_98583, "mic-98583", "MIC 98583")