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79081ec8 UH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 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 <stdlib.h> | |
22 | #include <string.h> | |
23 | #include "libsigrok.h" | |
24 | #include "libsigrok-internal.h" | |
25 | #include "protocol.h" | |
26 | ||
27 | static const int hwcaps[] = { | |
28 | SR_HWCAP_MULTIMETER, | |
29 | SR_HWCAP_LIMIT_SAMPLES, | |
30 | SR_HWCAP_LIMIT_MSEC, | |
31 | SR_HWCAP_CONTINUOUS, | |
32 | 0, | |
33 | }; | |
34 | ||
35 | static const char *probe_names[] = { | |
36 | "Probe", | |
37 | NULL, | |
38 | }; | |
39 | ||
fdbcb86d | 40 | SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info; |
fdbcb86d | 41 | SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info; |
6ac5f892 UH |
42 | |
43 | static struct sr_dev_driver *di_ut61d = &uni_t_ut61d_driver_info; | |
fdbcb86d | 44 | static struct sr_dev_driver *di_vc820 = &voltcraft_vc820_driver_info; |
79081ec8 | 45 | |
6ac5f892 UH |
46 | /* After hw_init() this will point to a device-specific entry (see above). */ |
47 | static struct sr_dev_driver *di = NULL; | |
48 | ||
79081ec8 UH |
49 | static int clear_instances(void) |
50 | { | |
51 | /* TODO: Use common code later. */ | |
52 | ||
53 | return SR_OK; | |
54 | } | |
55 | ||
34f06b90 | 56 | static int hw_init(struct sr_context *sr_ctx, int dmm) |
79081ec8 | 57 | { |
79081ec8 UH |
58 | struct drv_context *drvc; |
59 | ||
60 | if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { | |
61 | sr_err("Driver context malloc failed."); | |
62 | return SR_ERR_MALLOC; | |
63 | } | |
64 | ||
fdbcb86d | 65 | if (dmm == UNI_T_UT61D) |
6ac5f892 | 66 | di = di_ut61d; |
fdbcb86d | 67 | else if (dmm == VOLTCRAFT_VC820) |
6ac5f892 | 68 | di = di_vc820; |
8c1adf37 | 69 | sr_dbg("Selected '%s' subdriver.", di->name); |
6ac5f892 | 70 | |
1ebe4b4e | 71 | drvc->sr_ctx = sr_ctx; |
6ac5f892 | 72 | di->priv = drvc; |
79081ec8 UH |
73 | |
74 | return SR_OK; | |
75 | } | |
76 | ||
34f06b90 | 77 | static int hw_init_ut61d(struct sr_context *sr_ctx) |
fdbcb86d | 78 | { |
34f06b90 | 79 | return hw_init(sr_ctx, UNI_T_UT61D); |
fdbcb86d UH |
80 | } |
81 | ||
34f06b90 | 82 | static int hw_init_vc820(struct sr_context *sr_ctx) |
fdbcb86d | 83 | { |
34f06b90 | 84 | return hw_init(sr_ctx, VOLTCRAFT_VC820); |
fdbcb86d UH |
85 | } |
86 | ||
6ac5f892 | 87 | static GSList *hw_scan(GSList *options) |
79081ec8 | 88 | { |
41d9427f | 89 | GSList *devices, *l; |
79081ec8 | 90 | struct sr_dev_inst *sdi; |
41d9427f | 91 | struct dev_context *devc; |
79081ec8 | 92 | struct drv_context *drvc; |
41d9427f UH |
93 | struct sr_probe *probe; |
94 | struct libusb_device *ldev; | |
95 | int i, devcnt; | |
79081ec8 UH |
96 | |
97 | (void)options; | |
98 | ||
6ac5f892 | 99 | drvc = di->priv; |
79081ec8 | 100 | |
41d9427f UH |
101 | devices = NULL; |
102 | ||
7ae6a758 | 103 | if (!(l = sr_usb_find(drvc->sr_ctx->libusb_ctx, "1a86.e008"))) |
79081ec8 UH |
104 | return NULL; |
105 | ||
41d9427f UH |
106 | for (i = 0; i < (int)g_slist_length(l); i++) { |
107 | ldev = (struct libusb_device *)l->data; | |
108 | ||
109 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
110 | sr_err("Device context malloc failed."); | |
111 | return NULL; | |
112 | } | |
113 | ||
114 | devcnt = g_slist_length(drvc->instances); | |
115 | if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE, | |
116 | di->longname, NULL, NULL))) { | |
117 | sr_err("sr_dev_inst_new returned NULL."); | |
118 | return NULL; | |
119 | } | |
120 | sdi->priv = devc; | |
6ac5f892 | 121 | sdi->driver = di; |
41d9427f UH |
122 | if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) |
123 | return NULL; | |
124 | sdi->probes = g_slist_append(sdi->probes, probe); | |
125 | devc->usb = sr_usb_dev_inst_new( | |
126 | libusb_get_bus_number(ldev), | |
127 | libusb_get_device_address(ldev), NULL); | |
79081ec8 | 128 | drvc->instances = g_slist_append(drvc->instances, l->data); |
41d9427f | 129 | devices = g_slist_append(devices, sdi); |
79081ec8 UH |
130 | } |
131 | ||
132 | return devices; | |
133 | } | |
134 | ||
6ac5f892 | 135 | static GSList *hw_dev_list(void) |
79081ec8 UH |
136 | { |
137 | struct drv_context *drvc; | |
138 | ||
6ac5f892 | 139 | drvc = di->priv; |
79081ec8 UH |
140 | |
141 | return drvc->instances; | |
142 | } | |
143 | ||
144 | static int hw_dev_open(struct sr_dev_inst *sdi) | |
145 | { | |
41d9427f UH |
146 | struct dev_context *devc; |
147 | ||
148 | devc = sdi->priv; | |
149 | ||
150 | return sr_usb_open(NULL, devc->usb); | |
79081ec8 UH |
151 | } |
152 | ||
153 | static int hw_dev_close(struct sr_dev_inst *sdi) | |
154 | { | |
155 | (void)sdi; | |
156 | ||
157 | /* TODO */ | |
158 | ||
159 | return SR_OK; | |
160 | } | |
161 | ||
162 | static int hw_cleanup(void) | |
163 | { | |
164 | clear_instances(); | |
165 | ||
79081ec8 UH |
166 | return SR_OK; |
167 | } | |
168 | ||
169 | static int hw_info_get(int info_id, const void **data, | |
170 | const struct sr_dev_inst *sdi) | |
171 | { | |
172 | (void)sdi; | |
173 | ||
174 | sr_spew("Backend requested info_id %d.", info_id); | |
175 | ||
176 | switch (info_id) { | |
177 | case SR_DI_HWCAPS: | |
178 | *data = hwcaps; | |
179 | sr_spew("%s: Returning hwcaps.", __func__); | |
180 | break; | |
181 | case SR_DI_NUM_PROBES: | |
182 | *data = GINT_TO_POINTER(1); | |
183 | sr_spew("%s: Returning number of probes.", __func__); | |
184 | break; | |
185 | case SR_DI_PROBE_NAMES: | |
186 | *data = probe_names; | |
187 | sr_spew("%s: Returning probe names.", __func__); | |
188 | break; | |
189 | case SR_DI_SAMPLERATES: | |
190 | /* TODO: Get rid of this. */ | |
191 | *data = NULL; | |
192 | sr_spew("%s: Returning samplerates.", __func__); | |
193 | return SR_ERR_ARG; | |
194 | break; | |
195 | case SR_DI_CUR_SAMPLERATE: | |
196 | /* TODO: Get rid of this. */ | |
197 | *data = NULL; | |
198 | sr_spew("%s: Returning current samplerate.", __func__); | |
199 | return SR_ERR_ARG; | |
200 | break; | |
201 | default: | |
202 | sr_err("%s: Unknown info_id %d.", __func__, info_id); | |
203 | return SR_ERR_ARG; | |
204 | break; | |
205 | } | |
206 | ||
207 | return SR_OK; | |
208 | } | |
209 | ||
210 | static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, | |
211 | const void *value) | |
212 | { | |
213 | struct dev_context *devc; | |
214 | ||
215 | devc = sdi->priv; | |
216 | ||
217 | switch (hwcap) { | |
218 | case SR_HWCAP_LIMIT_MSEC: | |
219 | /* TODO: Not yet implemented. */ | |
220 | if (*(const uint64_t *)value == 0) { | |
221 | sr_err("Time limit cannot be 0."); | |
222 | return SR_ERR; | |
223 | } | |
224 | devc->limit_msec = *(const uint64_t *)value; | |
225 | sr_dbg("Setting time limit to %" PRIu64 "ms.", | |
226 | devc->limit_msec); | |
227 | break; | |
228 | case SR_HWCAP_LIMIT_SAMPLES: | |
229 | if (*(const uint64_t *)value == 0) { | |
230 | sr_err("Sample limit cannot be 0."); | |
231 | return SR_ERR; | |
232 | } | |
233 | devc->limit_samples = *(const uint64_t *)value; | |
234 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
235 | devc->limit_samples); | |
236 | break; | |
237 | default: | |
238 | sr_err("Unknown capability: %d.", hwcap); | |
239 | return SR_ERR; | |
240 | break; | |
241 | } | |
242 | ||
243 | return SR_OK; | |
244 | } | |
245 | ||
246 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, | |
6ac5f892 | 247 | void *cb_data) |
79081ec8 UH |
248 | { |
249 | struct sr_datafeed_packet packet; | |
250 | struct sr_datafeed_header header; | |
251 | struct sr_datafeed_meta_analog meta; | |
252 | struct dev_context *devc; | |
253 | ||
254 | devc = sdi->priv; | |
255 | ||
256 | sr_dbg("Starting acquisition."); | |
257 | ||
258 | devc->cb_data = cb_data; | |
259 | ||
260 | /* Send header packet to the session bus. */ | |
261 | sr_dbg("Sending SR_DF_HEADER."); | |
262 | packet.type = SR_DF_HEADER; | |
263 | packet.payload = (uint8_t *)&header; | |
264 | header.feed_version = 1; | |
265 | gettimeofday(&header.starttime, NULL); | |
266 | sr_session_send(devc->cb_data, &packet); | |
267 | ||
268 | /* Send metadata about the SR_DF_ANALOG packets to come. */ | |
269 | sr_dbg("Sending SR_DF_META_ANALOG."); | |
270 | packet.type = SR_DF_META_ANALOG; | |
271 | packet.payload = &meta; | |
272 | meta.num_probes = 1; | |
273 | sr_session_send(devc->cb_data, &packet); | |
274 | ||
6ac5f892 | 275 | if (!strcmp(di->name, "uni-t-ut61d")) { |
fdbcb86d UH |
276 | sr_source_add(0, 0, 10 /* poll_timeout */, |
277 | uni_t_ut61d_receive_data, (void *)sdi); | |
6ac5f892 | 278 | } else if (!strcmp(di->name, "voltcraft-vc820")) { |
fdbcb86d UH |
279 | sr_source_add(0, 0, 10 /* poll_timeout */, |
280 | voltcraft_vc820_receive_data, (void *)sdi); | |
281 | } | |
79081ec8 UH |
282 | |
283 | return SR_OK; | |
284 | } | |
285 | ||
69b07d14 | 286 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
79081ec8 UH |
287 | { |
288 | struct sr_datafeed_packet packet; | |
289 | ||
290 | (void)sdi; | |
291 | ||
292 | sr_dbg("Stopping acquisition."); | |
293 | ||
294 | /* Send end packet to the session bus. */ | |
295 | sr_dbg("Sending SR_DF_END."); | |
296 | packet.type = SR_DF_END; | |
297 | sr_session_send(cb_data, &packet); | |
298 | ||
299 | /* TODO? */ | |
300 | sr_source_remove(0); | |
301 | ||
302 | return SR_OK; | |
303 | } | |
304 | ||
fdbcb86d UH |
305 | SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info = { |
306 | .name = "uni-t-ut61d", | |
307 | .longname = "UNI-T UT61D", | |
308 | .api_version = 1, | |
309 | .init = hw_init_ut61d, | |
310 | .cleanup = hw_cleanup, | |
6ac5f892 UH |
311 | .scan = hw_scan, |
312 | .dev_list = hw_dev_list, | |
fdbcb86d UH |
313 | .dev_clear = clear_instances, |
314 | .dev_open = hw_dev_open, | |
315 | .dev_close = hw_dev_close, | |
316 | .info_get = hw_info_get, | |
317 | .dev_config_set = hw_dev_config_set, | |
6ac5f892 | 318 | .dev_acquisition_start = hw_dev_acquisition_start, |
fdbcb86d UH |
319 | .dev_acquisition_stop = hw_dev_acquisition_stop, |
320 | .priv = NULL, | |
321 | }; | |
322 | ||
323 | SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info = { | |
324 | .name = "voltcraft-vc820", | |
325 | .longname = "Voltcraft VC-820", | |
79081ec8 | 326 | .api_version = 1, |
fdbcb86d | 327 | .init = hw_init_vc820, |
79081ec8 | 328 | .cleanup = hw_cleanup, |
6ac5f892 UH |
329 | .scan = hw_scan, |
330 | .dev_list = hw_dev_list, | |
79081ec8 UH |
331 | .dev_clear = clear_instances, |
332 | .dev_open = hw_dev_open, | |
333 | .dev_close = hw_dev_close, | |
334 | .info_get = hw_info_get, | |
335 | .dev_config_set = hw_dev_config_set, | |
6ac5f892 | 336 | .dev_acquisition_start = hw_dev_acquisition_start, |
79081ec8 UH |
337 | .dev_acquisition_stop = hw_dev_acquisition_stop, |
338 | .priv = NULL, | |
339 | }; |