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4d729ddc BV |
1 | /* |
2 | * This file is part of the libsigrok 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 "protocol.h" | |
a8d09e13 BV |
24 | #include <sys/types.h> |
25 | #include <sys/stat.h> | |
26 | #include <fcntl.h> | |
27 | #include <errno.h> | |
28 | #include <string.h> | |
29 | ||
f306ca61 BV |
30 | /* The Colead SL-5868P uses this. */ |
31 | #define SERIALCOMM "2400/8n1" | |
32 | ||
a8d09e13 | 33 | static const int hwopts[] = { |
1953564a BV |
34 | SR_CONF_CONN, |
35 | SR_CONF_SERIALCOMM, | |
a8d09e13 BV |
36 | 0, |
37 | }; | |
38 | ||
39 | static const int hwcaps[] = { | |
1953564a BV |
40 | SR_CONF_SOUNDLEVELMETER, |
41 | SR_CONF_LIMIT_SAMPLES, | |
42 | SR_CONF_LIMIT_MSEC, | |
43 | SR_CONF_CONTINUOUS, | |
a8d09e13 BV |
44 | 0, |
45 | }; | |
46 | ||
4d729ddc BV |
47 | SR_PRIV struct sr_dev_driver colead_slm_driver_info; |
48 | static struct sr_dev_driver *di = &colead_slm_driver_info; | |
49 | ||
50 | /* Properly close and free all devices. */ | |
51 | static int clear_instances(void) | |
52 | { | |
53 | struct sr_dev_inst *sdi; | |
54 | struct drv_context *drvc; | |
55 | struct dev_context *devc; | |
56 | GSList *l; | |
57 | ||
538ac9a9 BV |
58 | if (!(drvc = di->priv)) |
59 | return SR_OK; | |
60 | ||
4d729ddc BV |
61 | for (l = drvc->instances; l; l = l->next) { |
62 | if (!(sdi = l->data)) | |
63 | continue; | |
64 | if (!(devc = sdi->priv)) | |
65 | continue; | |
a8d09e13 | 66 | sr_serial_dev_inst_free(devc->serial); |
4d729ddc BV |
67 | sr_dev_inst_free(sdi); |
68 | } | |
4d729ddc BV |
69 | g_slist_free(drvc->instances); |
70 | drvc->instances = NULL; | |
71 | ||
72 | return SR_OK; | |
73 | } | |
74 | ||
34f06b90 | 75 | static int hw_init(struct sr_context *sr_ctx) |
4d729ddc BV |
76 | { |
77 | struct drv_context *drvc; | |
78 | ||
79 | if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { | |
80 | sr_err("Driver context malloc failed."); | |
c0eea11c | 81 | return SR_ERR_MALLOC; |
4d729ddc BV |
82 | } |
83 | ||
1ebe4b4e | 84 | drvc->sr_ctx = sr_ctx; |
4d729ddc BV |
85 | di->priv = drvc; |
86 | ||
87 | return SR_OK; | |
88 | } | |
89 | ||
90 | static GSList *hw_scan(GSList *options) | |
91 | { | |
92 | struct drv_context *drvc; | |
a8d09e13 BV |
93 | struct dev_context *devc; |
94 | struct sr_dev_inst *sdi; | |
1987b8d6 | 95 | struct sr_config *src; |
a8d09e13 BV |
96 | struct sr_probe *probe; |
97 | GSList *devices, *l; | |
98 | const char *conn, *serialcomm; | |
4d729ddc | 99 | |
4d729ddc BV |
100 | drvc = di->priv; |
101 | drvc->instances = NULL; | |
102 | ||
4b97c74e UH |
103 | devices = NULL; |
104 | ||
a8d09e13 BV |
105 | conn = serialcomm = NULL; |
106 | for (l = options; l; l = l->next) { | |
1987b8d6 BV |
107 | src = l->data; |
108 | switch (src->key) { | |
1953564a | 109 | case SR_CONF_CONN: |
1987b8d6 | 110 | conn = src->value; |
a8d09e13 | 111 | break; |
1953564a | 112 | case SR_CONF_SERIALCOMM: |
1987b8d6 | 113 | serialcomm = src->value; |
a8d09e13 BV |
114 | break; |
115 | } | |
116 | } | |
117 | if (!conn) | |
118 | return NULL; | |
f306ca61 BV |
119 | if (!serialcomm) |
120 | serialcomm = SERIALCOMM; | |
a8d09e13 BV |
121 | |
122 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Colead", | |
123 | "SL-5868P", NULL))) | |
124 | return NULL; | |
125 | ||
126 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
4b97c74e | 127 | sr_dbg("Device context malloc failed."); |
a8d09e13 BV |
128 | return NULL; |
129 | } | |
130 | ||
f306ca61 BV |
131 | if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm))) |
132 | return NULL; | |
a8d09e13 | 133 | |
a8d09e13 BV |
134 | sdi->priv = devc; |
135 | sdi->driver = di; | |
136 | if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) | |
137 | return NULL; | |
138 | sdi->probes = g_slist_append(sdi->probes, probe); | |
139 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
140 | devices = g_slist_append(devices, sdi); | |
4d729ddc BV |
141 | |
142 | return devices; | |
143 | } | |
144 | ||
145 | static GSList *hw_dev_list(void) | |
146 | { | |
147 | struct drv_context *drvc; | |
148 | ||
149 | drvc = di->priv; | |
150 | ||
151 | return drvc->instances; | |
152 | } | |
153 | ||
154 | static int hw_dev_open(struct sr_dev_inst *sdi) | |
155 | { | |
a8d09e13 BV |
156 | struct dev_context *devc; |
157 | ||
158 | if (!(devc = sdi->priv)) { | |
159 | sr_err("sdi->priv was NULL."); | |
160 | return SR_ERR_BUG; | |
161 | } | |
162 | ||
a54dd31e | 163 | if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK) |
a8d09e13 | 164 | return SR_ERR; |
f306ca61 | 165 | |
a8d09e13 | 166 | sdi->status = SR_ST_ACTIVE; |
4d729ddc BV |
167 | |
168 | return SR_OK; | |
169 | } | |
170 | ||
171 | static int hw_dev_close(struct sr_dev_inst *sdi) | |
172 | { | |
a8d09e13 BV |
173 | struct dev_context *devc; |
174 | ||
175 | if (!(devc = sdi->priv)) { | |
176 | sr_err("sdi->priv was NULL."); | |
177 | return SR_ERR_BUG; | |
178 | } | |
179 | ||
180 | if (devc->serial && devc->serial->fd != -1) { | |
f306ca61 | 181 | serial_close(devc->serial); |
a8d09e13 BV |
182 | sdi->status = SR_ST_INACTIVE; |
183 | } | |
4d729ddc BV |
184 | |
185 | return SR_OK; | |
186 | } | |
187 | ||
188 | static int hw_cleanup(void) | |
189 | { | |
190 | clear_instances(); | |
191 | ||
4d729ddc BV |
192 | return SR_OK; |
193 | } | |
194 | ||
035a1078 | 195 | static int config_set(int id, const void *value, const struct sr_dev_inst *sdi) |
4d729ddc | 196 | { |
a8d09e13 | 197 | struct dev_context *devc; |
4d729ddc | 198 | |
a8d09e13 | 199 | if (sdi->status != SR_ST_ACTIVE) |
4d729ddc | 200 | return SR_ERR; |
a8d09e13 BV |
201 | |
202 | if (!(devc = sdi->priv)) { | |
203 | sr_err("sdi->priv was NULL."); | |
204 | return SR_ERR_BUG; | |
4d729ddc BV |
205 | } |
206 | ||
035a1078 | 207 | switch (id) { |
1953564a | 208 | case SR_CONF_LIMIT_MSEC: |
a8d09e13 BV |
209 | /* TODO: not yet implemented */ |
210 | if (*(const uint64_t *)value == 0) { | |
211 | sr_err("LIMIT_MSEC can't be 0."); | |
212 | return SR_ERR; | |
213 | } | |
214 | devc->limit_msec = *(const uint64_t *)value; | |
215 | sr_dbg("Setting time limit to %" PRIu64 "ms.", | |
216 | devc->limit_msec); | |
217 | break; | |
1953564a | 218 | case SR_CONF_LIMIT_SAMPLES: |
a8d09e13 BV |
219 | devc->limit_samples = *(const uint64_t *)value; |
220 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
221 | devc->limit_samples); | |
222 | break; | |
4d729ddc | 223 | default: |
035a1078 | 224 | sr_err("Unknown capability: %d.", id); |
a8d09e13 BV |
225 | return SR_ERR; |
226 | break; | |
4d729ddc BV |
227 | } |
228 | ||
a8d09e13 | 229 | return SR_OK; |
4d729ddc BV |
230 | } |
231 | ||
a1c743fc BV |
232 | static int config_list(int key, const void **data, const struct sr_dev_inst *sdi) |
233 | { | |
234 | ||
235 | (void)sdi; | |
236 | ||
237 | switch (key) { | |
0d485e30 BV |
238 | case SR_CONF_SCAN_OPTIONS: |
239 | *data = hwopts; | |
240 | break; | |
9a6517d1 BV |
241 | case SR_CONF_DEVICE_OPTIONS: |
242 | *data = hwcaps; | |
243 | break; | |
a1c743fc BV |
244 | default: |
245 | return SR_ERR_ARG; | |
246 | } | |
247 | ||
248 | return SR_OK; | |
249 | } | |
250 | ||
4d729ddc BV |
251 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
252 | void *cb_data) | |
253 | { | |
a8d09e13 BV |
254 | struct sr_datafeed_packet packet; |
255 | struct sr_datafeed_header header; | |
a8d09e13 BV |
256 | struct dev_context *devc; |
257 | ||
258 | if (!(devc = sdi->priv)) { | |
259 | sr_err("sdi->priv was NULL."); | |
260 | return SR_ERR_BUG; | |
261 | } | |
262 | ||
263 | sr_dbg("Starting acquisition."); | |
264 | ||
265 | devc->cb_data = cb_data; | |
266 | ||
267 | /* Send header packet to the session bus. */ | |
268 | sr_dbg("Sending SR_DF_HEADER."); | |
269 | packet.type = SR_DF_HEADER; | |
270 | packet.payload = (uint8_t *)&header; | |
271 | header.feed_version = 1; | |
272 | gettimeofday(&header.starttime, NULL); | |
273 | sr_session_send(devc->cb_data, &packet); | |
274 | ||
a8d09e13 BV |
275 | /* Poll every 150ms, or whenever some data comes in. */ |
276 | sr_source_add(devc->serial->fd, G_IO_IN, 150, colead_slm_receive_data, | |
277 | (void *)sdi); | |
4d729ddc BV |
278 | |
279 | return SR_OK; | |
280 | } | |
281 | ||
69b07d14 | 282 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
4d729ddc | 283 | { |
a8d09e13 BV |
284 | struct sr_datafeed_packet packet; |
285 | struct dev_context *devc; | |
4d729ddc | 286 | |
a8d09e13 | 287 | if (sdi->status != SR_ST_ACTIVE) |
4d729ddc | 288 | return SR_ERR; |
a8d09e13 BV |
289 | |
290 | if (!(devc = sdi->priv)) { | |
291 | sr_err("sdi->priv was NULL."); | |
292 | return SR_ERR_BUG; | |
4d729ddc BV |
293 | } |
294 | ||
a8d09e13 BV |
295 | sr_dbg("Stopping acquisition."); |
296 | ||
297 | sr_source_remove(devc->serial->fd); | |
298 | hw_dev_close((struct sr_dev_inst *)sdi); | |
299 | ||
300 | /* Send end packet to the session bus. */ | |
301 | sr_dbg("Sending SR_DF_END."); | |
302 | packet.type = SR_DF_END; | |
303 | sr_session_send(cb_data, &packet); | |
4d729ddc BV |
304 | |
305 | return SR_OK; | |
306 | } | |
307 | ||
308 | SR_PRIV struct sr_dev_driver colead_slm_driver_info = { | |
309 | .name = "colead-slm", | |
310 | .longname = "Colead SLM", | |
311 | .api_version = 1, | |
312 | .init = hw_init, | |
313 | .cleanup = hw_cleanup, | |
314 | .scan = hw_scan, | |
315 | .dev_list = hw_dev_list, | |
316 | .dev_clear = clear_instances, | |
035a1078 | 317 | .config_set = config_set, |
a1c743fc | 318 | .config_list = config_list, |
4d729ddc BV |
319 | .dev_open = hw_dev_open, |
320 | .dev_close = hw_dev_close, | |
4d729ddc BV |
321 | .dev_acquisition_start = hw_dev_acquisition_start, |
322 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
323 | .priv = NULL, | |
324 | }; |