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1 | /* | |
2 | * This file is part of the libsigrok 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 | #define UNI_T_UT_D04_NEW "1a86.e008" | |
28 | ||
29 | static const int32_t hwopts[] = { | |
30 | SR_CONF_CONN, | |
31 | }; | |
32 | ||
33 | static const int32_t hwcaps[] = { | |
34 | SR_CONF_MULTIMETER, | |
35 | SR_CONF_LIMIT_SAMPLES, | |
36 | SR_CONF_LIMIT_MSEC, | |
37 | SR_CONF_CONTINUOUS, | |
38 | }; | |
39 | ||
40 | SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info; | |
41 | SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info; | |
42 | ||
43 | static struct sr_dev_driver *di_ut61d = &uni_t_ut61d_driver_info; | |
44 | static struct sr_dev_driver *di_vc820 = &voltcraft_vc820_driver_info; | |
45 | ||
46 | /* After hw_init() this will point to a device-specific entry (see above). */ | |
47 | static struct sr_dev_driver *di = NULL; | |
48 | ||
49 | static int clear_instances(void) | |
50 | { | |
51 | /* TODO: Use common code later. */ | |
52 | ||
53 | return SR_OK; | |
54 | } | |
55 | ||
56 | static int hw_init(struct sr_context *sr_ctx, int dmm) | |
57 | { | |
58 | if (dmm == UNI_T_UT61D) | |
59 | di = di_ut61d; | |
60 | else if (dmm == VOLTCRAFT_VC820) | |
61 | di = di_vc820; | |
62 | sr_dbg("Selected '%s' subdriver.", di->name); | |
63 | ||
64 | return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN); | |
65 | } | |
66 | ||
67 | static int hw_init_ut61d(struct sr_context *sr_ctx) | |
68 | { | |
69 | return hw_init(sr_ctx, UNI_T_UT61D); | |
70 | } | |
71 | ||
72 | static int hw_init_vc820(struct sr_context *sr_ctx) | |
73 | { | |
74 | return hw_init(sr_ctx, VOLTCRAFT_VC820); | |
75 | } | |
76 | ||
77 | static GSList *hw_scan(GSList *options) | |
78 | { | |
79 | GSList *usb_devices, *devices, *l; | |
80 | struct sr_dev_inst *sdi; | |
81 | struct dev_context *devc; | |
82 | struct drv_context *drvc; | |
83 | struct sr_usb_dev_inst *usb; | |
84 | struct sr_config *src; | |
85 | struct sr_probe *probe; | |
86 | const char *conn; | |
87 | ||
88 | (void)options; | |
89 | ||
90 | drvc = di->priv; | |
91 | ||
92 | /* USB scan is always authoritative. */ | |
93 | clear_instances(); | |
94 | ||
95 | conn = NULL; | |
96 | for (l = options; l; l = l->next) { | |
97 | src = l->data; | |
98 | switch (src->key) { | |
99 | case SR_CONF_CONN: | |
100 | conn = g_variant_get_string(src->data, NULL); | |
101 | break; | |
102 | } | |
103 | } | |
104 | if (!conn) | |
105 | conn = UNI_T_UT_D04_NEW; | |
106 | ||
107 | devices = NULL; | |
108 | if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) { | |
109 | g_slist_free_full(usb_devices, g_free); | |
110 | return NULL; | |
111 | } | |
112 | ||
113 | for (l = usb_devices; l; l = l->next) { | |
114 | usb = l->data; | |
115 | ||
116 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
117 | sr_err("Device context malloc failed."); | |
118 | return NULL; | |
119 | } | |
120 | ||
121 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, | |
122 | di->longname, NULL, NULL))) { | |
123 | sr_err("sr_dev_inst_new returned NULL."); | |
124 | return NULL; | |
125 | } | |
126 | sdi->priv = devc; | |
127 | sdi->driver = di; | |
128 | if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) | |
129 | return NULL; | |
130 | sdi->probes = g_slist_append(sdi->probes, probe); | |
131 | ||
132 | devc->usb = usb; | |
133 | ||
134 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
135 | devices = g_slist_append(devices, sdi); | |
136 | } | |
137 | ||
138 | return devices; | |
139 | } | |
140 | ||
141 | static GSList *hw_dev_list(void) | |
142 | { | |
143 | return ((struct drv_context *)(di->priv))->instances; | |
144 | } | |
145 | ||
146 | static int hw_dev_open(struct sr_dev_inst *sdi) | |
147 | { | |
148 | struct drv_context *drvc; | |
149 | struct dev_context *devc; | |
150 | int ret; | |
151 | ||
152 | drvc = di->priv; | |
153 | devc = sdi->priv; | |
154 | ||
155 | if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, devc->usb)) == SR_OK) | |
156 | sdi->status = SR_ST_ACTIVE; | |
157 | ||
158 | return ret; | |
159 | } | |
160 | ||
161 | static int hw_dev_close(struct sr_dev_inst *sdi) | |
162 | { | |
163 | (void)sdi; | |
164 | ||
165 | /* TODO */ | |
166 | ||
167 | sdi->status = SR_ST_INACTIVE; | |
168 | ||
169 | return SR_OK; | |
170 | } | |
171 | ||
172 | static int hw_cleanup(void) | |
173 | { | |
174 | clear_instances(); | |
175 | ||
176 | return SR_OK; | |
177 | } | |
178 | ||
179 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi) | |
180 | { | |
181 | struct dev_context *devc; | |
182 | ||
183 | devc = sdi->priv; | |
184 | ||
185 | switch (id) { | |
186 | case SR_CONF_LIMIT_MSEC: | |
187 | /* TODO: Not yet implemented. */ | |
188 | if (g_variant_get_uint64(data) == 0) { | |
189 | sr_err("Time limit cannot be 0."); | |
190 | return SR_ERR; | |
191 | } | |
192 | devc->limit_msec = g_variant_get_uint64(data); | |
193 | sr_dbg("Setting time limit to %" PRIu64 "ms.", | |
194 | devc->limit_msec); | |
195 | break; | |
196 | case SR_CONF_LIMIT_SAMPLES: | |
197 | if (g_variant_get_uint64(data) == 0) { | |
198 | sr_err("Sample limit cannot be 0."); | |
199 | return SR_ERR; | |
200 | } | |
201 | devc->limit_samples = g_variant_get_uint64(data); | |
202 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
203 | devc->limit_samples); | |
204 | break; | |
205 | default: | |
206 | return SR_ERR_NA; | |
207 | } | |
208 | ||
209 | return SR_OK; | |
210 | } | |
211 | ||
212 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) | |
213 | { | |
214 | ||
215 | (void)sdi; | |
216 | ||
217 | switch (key) { | |
218 | case SR_CONF_SCAN_OPTIONS: | |
219 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
220 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
221 | break; | |
222 | case SR_CONF_DEVICE_OPTIONS: | |
223 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
224 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
225 | break; | |
226 | default: | |
227 | return SR_ERR_NA; | |
228 | } | |
229 | ||
230 | return SR_OK; | |
231 | } | |
232 | ||
233 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, | |
234 | void *cb_data) | |
235 | { | |
236 | struct dev_context *devc; | |
237 | ||
238 | devc = sdi->priv; | |
239 | ||
240 | devc->cb_data = cb_data; | |
241 | ||
242 | /* Send header packet to the session bus. */ | |
243 | std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN); | |
244 | ||
245 | if (!strcmp(di->name, "uni-t-ut61d")) { | |
246 | sr_source_add(0, 0, 10 /* poll_timeout */, | |
247 | uni_t_ut61d_receive_data, (void *)sdi); | |
248 | } else if (!strcmp(di->name, "voltcraft-vc820")) { | |
249 | sr_source_add(0, 0, 10 /* poll_timeout */, | |
250 | voltcraft_vc820_receive_data, (void *)sdi); | |
251 | } | |
252 | ||
253 | return SR_OK; | |
254 | } | |
255 | ||
256 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
257 | { | |
258 | struct sr_datafeed_packet packet; | |
259 | ||
260 | (void)sdi; | |
261 | ||
262 | sr_dbg("Stopping acquisition."); | |
263 | ||
264 | /* Send end packet to the session bus. */ | |
265 | sr_dbg("Sending SR_DF_END."); | |
266 | packet.type = SR_DF_END; | |
267 | sr_session_send(cb_data, &packet); | |
268 | ||
269 | /* TODO? */ | |
270 | sr_source_remove(0); | |
271 | ||
272 | return SR_OK; | |
273 | } | |
274 | ||
275 | SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info = { | |
276 | .name = "uni-t-ut61d", | |
277 | .longname = "UNI-T UT61D", | |
278 | .api_version = 1, | |
279 | .init = hw_init_ut61d, | |
280 | .cleanup = hw_cleanup, | |
281 | .scan = hw_scan, | |
282 | .dev_list = hw_dev_list, | |
283 | .dev_clear = clear_instances, | |
284 | .config_get = NULL, | |
285 | .config_set = config_set, | |
286 | .config_list = config_list, | |
287 | .dev_open = hw_dev_open, | |
288 | .dev_close = hw_dev_close, | |
289 | .dev_acquisition_start = hw_dev_acquisition_start, | |
290 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
291 | .priv = NULL, | |
292 | }; | |
293 | ||
294 | SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info = { | |
295 | .name = "voltcraft-vc820", | |
296 | .longname = "Voltcraft VC-820", | |
297 | .api_version = 1, | |
298 | .init = hw_init_vc820, | |
299 | .cleanup = hw_cleanup, | |
300 | .scan = hw_scan, | |
301 | .dev_list = hw_dev_list, | |
302 | .dev_clear = clear_instances, | |
303 | .config_get = NULL, | |
304 | .config_set = config_set, | |
305 | .config_list = config_list, | |
306 | .dev_open = hw_dev_open, | |
307 | .dev_close = hw_dev_close, | |
308 | .dev_acquisition_start = hw_dev_acquisition_start, | |
309 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
310 | .priv = NULL, | |
311 | }; |