]>
Commit | Line | Data |
---|---|---|
ed759a08 BV |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 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 | ||
6ec6c43b | 20 | #include <config.h> |
bc7be4a9 | 21 | #include <string.h> |
ed759a08 BV |
22 | #include "protocol.h" |
23 | ||
a8806f03 BV |
24 | #define USB_CONN "1041.8101" |
25 | #define VENDOR "Kecheng" | |
26 | #define USB_INTERFACE 0 | |
a8806f03 | 27 | |
f254bc4b | 28 | static const uint32_t devopts[] = { |
a8806f03 | 29 | SR_CONF_SOUNDLEVELMETER, |
a8806f03 | 30 | SR_CONF_CONTINUOUS, |
5827f61b BV |
31 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, |
32 | SR_CONF_SAMPLE_INTERVAL | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
33 | SR_CONF_DATALOG | SR_CONF_GET, | |
34 | SR_CONF_SPL_WEIGHT_FREQ | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
35 | SR_CONF_SPL_WEIGHT_TIME | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
36 | SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
bc7be4a9 BV |
37 | }; |
38 | ||
df035528 | 39 | SR_PRIV const uint64_t kecheng_kc_330b_sample_intervals[][2] = { |
bc7be4a9 BV |
40 | { 1, 8 }, |
41 | { 1, 2 }, | |
42 | { 1, 1 }, | |
43 | { 2, 1 }, | |
44 | { 5, 1 }, | |
45 | { 10, 1 }, | |
46 | { 60, 1 }, | |
47 | }; | |
48 | ||
49 | static const char *weight_freq[] = { | |
50 | "A", | |
51 | "C", | |
52 | }; | |
53 | ||
54 | static const char *weight_time[] = { | |
55 | "F", | |
56 | "S", | |
57 | }; | |
58 | ||
59 | static const char *data_sources[] = { | |
60 | "Live", | |
61 | "Memory", | |
a8806f03 BV |
62 | }; |
63 | ||
ed759a08 | 64 | SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info; |
ed759a08 | 65 | |
4f840ce9 | 66 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) |
ed759a08 | 67 | { |
1f8f5bc0 | 68 | return std_init(di, sr_ctx, LOG_PREFIX); |
ed759a08 BV |
69 | } |
70 | ||
4f840ce9 ML |
71 | static int scan_kecheng(struct sr_dev_driver *di, |
72 | struct sr_usb_dev_inst *usb, char **model) | |
a8806f03 BV |
73 | { |
74 | struct drv_context *drvc; | |
75 | int len, ret; | |
76 | unsigned char cmd, buf[32]; | |
77 | ||
41812aca | 78 | drvc = di->context; |
a8806f03 BV |
79 | if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK) |
80 | return SR_ERR; | |
81 | ||
82 | cmd = CMD_IDENTIFY; | |
83 | ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, &cmd, 1, &len, 5); | |
84 | if (ret != 0) { | |
85 | libusb_close(usb->devhdl); | |
86 | sr_dbg("Failed to send Identify command: %s", libusb_error_name(ret)); | |
87 | return SR_ERR; | |
88 | } | |
89 | ||
90 | ret = libusb_bulk_transfer(usb->devhdl, EP_IN, buf, 32, &len, 10); | |
91 | if (ret != 0) { | |
92 | libusb_close(usb->devhdl); | |
93 | sr_dbg("Failed to receive response: %s", libusb_error_name(ret)); | |
94 | return SR_ERR; | |
95 | } | |
96 | ||
97 | libusb_close(usb->devhdl); | |
98 | usb->devhdl = NULL; | |
99 | ||
100 | if (len < 2 || buf[0] != (CMD_IDENTIFY | 0x80) || buf[1] > 30) { | |
101 | sr_dbg("Invalid response to Identify command"); | |
102 | return SR_ERR; | |
103 | } | |
104 | ||
105 | buf[buf[1] + 2] = '\x0'; | |
106 | *model = g_strndup((const gchar *)buf + 2, 30); | |
a8806f03 BV |
107 | |
108 | return SR_OK; | |
109 | } | |
110 | ||
4f840ce9 | 111 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
ed759a08 BV |
112 | { |
113 | struct drv_context *drvc; | |
a8806f03 BV |
114 | struct dev_context *devc; |
115 | struct sr_dev_inst *sdi; | |
a8806f03 BV |
116 | GSList *usb_devices, *devices, *l; |
117 | char *model; | |
ed759a08 BV |
118 | |
119 | (void)options; | |
120 | ||
41812aca | 121 | drvc = di->context; |
ed759a08 BV |
122 | drvc->instances = NULL; |
123 | ||
a8806f03 BV |
124 | devices = NULL; |
125 | if ((usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_CONN))) { | |
126 | /* We have a list of sr_usb_dev_inst matching the connection | |
127 | * string. Wrap them in sr_dev_inst and we're done. */ | |
128 | for (l = usb_devices; l; l = l->next) { | |
4f840ce9 | 129 | if (scan_kecheng(di, l->data, &model) != SR_OK) |
a8806f03 | 130 | continue; |
aac29cc1 | 131 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be UH |
132 | sdi->status = SR_ST_INACTIVE; |
133 | sdi->vendor = g_strdup(VENDOR); | |
134 | sdi->model = model; /* Already g_strndup()'d. */ | |
a8806f03 BV |
135 | sdi->driver = di; |
136 | sdi->inst_type = SR_INST_USB; | |
137 | sdi->conn = l->data; | |
5e23fcab | 138 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL"); |
f57d8ffe | 139 | devc = g_malloc0(sizeof(struct dev_context)); |
a8806f03 BV |
140 | sdi->priv = devc; |
141 | devc->limit_samples = 0; | |
bc7be4a9 BV |
142 | /* The protocol provides no way to read the current |
143 | * settings, so we'll enforce these. */ | |
144 | devc->sample_interval = DEFAULT_SAMPLE_INTERVAL; | |
145 | devc->alarm_low = DEFAULT_ALARM_LOW; | |
146 | devc->alarm_high = DEFAULT_ALARM_HIGH; | |
147 | devc->mqflags = DEFAULT_WEIGHT_TIME | DEFAULT_WEIGHT_FREQ; | |
148 | devc->data_source = DEFAULT_DATA_SOURCE; | |
85ed4ab3 | 149 | devc->config_dirty = FALSE; |
bc7be4a9 BV |
150 | |
151 | /* TODO: Set date/time? */ | |
a8806f03 BV |
152 | |
153 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
154 | devices = g_slist_append(devices, sdi); | |
155 | } | |
156 | g_slist_free(usb_devices); | |
157 | } else | |
158 | g_slist_free_full(usb_devices, g_free); | |
ed759a08 BV |
159 | |
160 | return devices; | |
161 | } | |
162 | ||
ed759a08 BV |
163 | static int dev_open(struct sr_dev_inst *sdi) |
164 | { | |
4f840ce9 | 165 | struct sr_dev_driver *di = sdi->driver; |
efa98402 | 166 | struct drv_context *drvc = di->context; |
a8806f03 BV |
167 | struct sr_usb_dev_inst *usb; |
168 | int ret; | |
169 | ||
a8806f03 | 170 | usb = sdi->conn; |
ed759a08 | 171 | |
a8806f03 BV |
172 | if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK) |
173 | return SR_ERR; | |
ed759a08 | 174 | |
85ed4ab3 BV |
175 | if ((ret = libusb_set_configuration(usb->devhdl, 1))) { |
176 | sr_err("Failed to set configuration: %s.", libusb_error_name(ret)); | |
177 | return SR_ERR; | |
178 | } | |
179 | ||
a8806f03 BV |
180 | if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE))) { |
181 | sr_err("Failed to claim interface: %s.", libusb_error_name(ret)); | |
182 | return SR_ERR; | |
183 | } | |
ed759a08 BV |
184 | sdi->status = SR_ST_ACTIVE; |
185 | ||
a8806f03 | 186 | return ret; |
ed759a08 BV |
187 | } |
188 | ||
189 | static int dev_close(struct sr_dev_inst *sdi) | |
190 | { | |
85ed4ab3 | 191 | struct dev_context *devc; |
a8806f03 BV |
192 | struct sr_usb_dev_inst *usb; |
193 | ||
a8806f03 | 194 | usb = sdi->conn; |
ed759a08 | 195 | |
a8806f03 BV |
196 | if (!usb->devhdl) |
197 | /* Nothing to do. */ | |
198 | return SR_OK; | |
ed759a08 | 199 | |
85ed4ab3 BV |
200 | /* This allows a frontend to configure the device without ever |
201 | * doing an acquisition step. */ | |
202 | devc = sdi->priv; | |
203 | if (!devc->config_dirty) | |
204 | kecheng_kc_330b_configure(sdi); | |
205 | ||
a8806f03 BV |
206 | libusb_release_interface(usb->devhdl, USB_INTERFACE); |
207 | libusb_close(usb->devhdl); | |
208 | usb->devhdl = NULL; | |
ed759a08 BV |
209 | sdi->status = SR_ST_INACTIVE; |
210 | ||
211 | return SR_OK; | |
212 | } | |
213 | ||
584560f1 | 214 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 215 | const struct sr_channel_group *cg) |
ed759a08 | 216 | { |
a8806f03 | 217 | struct dev_context *devc; |
bc7be4a9 BV |
218 | GVariant *rational[2]; |
219 | const uint64_t *si; | |
ed759a08 | 220 | |
53b4680f | 221 | (void)cg; |
d3c74a6f | 222 | |
a8806f03 | 223 | devc = sdi->priv; |
ed759a08 | 224 | switch (key) { |
a8806f03 BV |
225 | case SR_CONF_LIMIT_SAMPLES: |
226 | *data = g_variant_new_uint64(devc->limit_samples); | |
227 | break; | |
bc7be4a9 | 228 | case SR_CONF_SAMPLE_INTERVAL: |
df035528 | 229 | si = kecheng_kc_330b_sample_intervals[devc->sample_interval]; |
bc7be4a9 BV |
230 | rational[0] = g_variant_new_uint64(si[0]); |
231 | rational[1] = g_variant_new_uint64(si[1]); | |
232 | *data = g_variant_new_tuple(rational, 2); | |
233 | break; | |
234 | case SR_CONF_DATALOG: | |
85ed4ab3 BV |
235 | /* There really isn't a way to be sure the device is logging. */ |
236 | return SR_ERR_NA; | |
bc7be4a9 BV |
237 | break; |
238 | case SR_CONF_SPL_WEIGHT_FREQ: | |
239 | if (devc->mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A) | |
240 | *data = g_variant_new_string("A"); | |
241 | else | |
242 | *data = g_variant_new_string("C"); | |
243 | break; | |
244 | case SR_CONF_SPL_WEIGHT_TIME: | |
245 | if (devc->mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_F) | |
246 | *data = g_variant_new_string("F"); | |
247 | else | |
248 | *data = g_variant_new_string("S"); | |
249 | break; | |
250 | case SR_CONF_DATA_SOURCE: | |
251 | if (devc->data_source == DATA_SOURCE_LIVE) | |
252 | *data = g_variant_new_string("Live"); | |
253 | else | |
254 | *data = g_variant_new_string("Memory"); | |
255 | break; | |
ed759a08 BV |
256 | default: |
257 | return SR_ERR_NA; | |
258 | } | |
259 | ||
a8806f03 | 260 | return SR_OK; |
ed759a08 BV |
261 | } |
262 | ||
584560f1 | 263 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 264 | const struct sr_channel_group *cg) |
ed759a08 | 265 | { |
a8806f03 | 266 | struct dev_context *devc; |
bc7be4a9 BV |
267 | uint64_t p, q; |
268 | unsigned int i; | |
269 | int tmp, ret; | |
270 | const char *tmp_str; | |
ed759a08 | 271 | |
53b4680f | 272 | (void)cg; |
d3c74a6f | 273 | |
ed759a08 BV |
274 | if (sdi->status != SR_ST_ACTIVE) |
275 | return SR_ERR_DEV_CLOSED; | |
276 | ||
a8806f03 | 277 | devc = sdi->priv; |
ed759a08 BV |
278 | ret = SR_OK; |
279 | switch (key) { | |
a8806f03 BV |
280 | case SR_CONF_LIMIT_SAMPLES: |
281 | devc->limit_samples = g_variant_get_uint64(data); | |
282 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
283 | devc->limit_samples); | |
284 | break; | |
bc7be4a9 BV |
285 | case SR_CONF_SAMPLE_INTERVAL: |
286 | g_variant_get(data, "(tt)", &p, &q); | |
df035528 BV |
287 | for (i = 0; i < ARRAY_SIZE(kecheng_kc_330b_sample_intervals); i++) { |
288 | if (kecheng_kc_330b_sample_intervals[i][0] != p || kecheng_kc_330b_sample_intervals[i][1] != q) | |
bc7be4a9 BV |
289 | continue; |
290 | devc->sample_interval = i; | |
85ed4ab3 | 291 | devc->config_dirty = TRUE; |
bc7be4a9 BV |
292 | break; |
293 | } | |
df035528 | 294 | if (i == ARRAY_SIZE(kecheng_kc_330b_sample_intervals)) |
bc7be4a9 BV |
295 | ret = SR_ERR_ARG; |
296 | break; | |
297 | case SR_CONF_SPL_WEIGHT_FREQ: | |
298 | tmp_str = g_variant_get_string(data, NULL); | |
299 | if (!strcmp(tmp_str, "A")) | |
300 | tmp = SR_MQFLAG_SPL_FREQ_WEIGHT_A; | |
301 | else if (!strcmp(tmp_str, "C")) | |
302 | tmp = SR_MQFLAG_SPL_FREQ_WEIGHT_C; | |
303 | else | |
304 | return SR_ERR_ARG; | |
305 | devc->mqflags &= ~(SR_MQFLAG_SPL_FREQ_WEIGHT_A | SR_MQFLAG_SPL_FREQ_WEIGHT_C); | |
306 | devc->mqflags |= tmp; | |
85ed4ab3 | 307 | devc->config_dirty = TRUE; |
bc7be4a9 BV |
308 | break; |
309 | case SR_CONF_SPL_WEIGHT_TIME: | |
310 | tmp_str = g_variant_get_string(data, NULL); | |
311 | if (!strcmp(tmp_str, "F")) | |
312 | tmp = SR_MQFLAG_SPL_TIME_WEIGHT_F; | |
313 | else if (!strcmp(tmp_str, "S")) | |
314 | tmp = SR_MQFLAG_SPL_TIME_WEIGHT_S; | |
315 | else | |
316 | return SR_ERR_ARG; | |
317 | devc->mqflags &= ~(SR_MQFLAG_SPL_TIME_WEIGHT_F | SR_MQFLAG_SPL_TIME_WEIGHT_S); | |
318 | devc->mqflags |= tmp; | |
85ed4ab3 | 319 | devc->config_dirty = TRUE; |
bc7be4a9 BV |
320 | break; |
321 | case SR_CONF_DATA_SOURCE: | |
322 | tmp_str = g_variant_get_string(data, NULL); | |
323 | if (!strcmp(tmp_str, "Live")) | |
324 | devc->data_source = DATA_SOURCE_LIVE; | |
325 | else if (!strcmp(tmp_str, "Memory")) | |
326 | devc->data_source = DATA_SOURCE_MEMORY; | |
327 | else | |
328 | return SR_ERR; | |
85ed4ab3 | 329 | devc->config_dirty = TRUE; |
bc7be4a9 | 330 | break; |
ed759a08 BV |
331 | default: |
332 | ret = SR_ERR_NA; | |
333 | } | |
334 | ||
335 | return ret; | |
336 | } | |
337 | ||
584560f1 | 338 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 339 | const struct sr_channel_group *cg) |
ed759a08 | 340 | { |
bc7be4a9 BV |
341 | GVariant *tuple, *rational[2]; |
342 | GVariantBuilder gvb; | |
343 | unsigned int i; | |
ed759a08 BV |
344 | |
345 | (void)sdi; | |
53b4680f | 346 | (void)cg; |
ed759a08 | 347 | |
ed759a08 | 348 | switch (key) { |
a8806f03 | 349 | case SR_CONF_DEVICE_OPTIONS: |
584560f1 | 350 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
f254bc4b | 351 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); |
a8806f03 | 352 | break; |
bc7be4a9 BV |
353 | case SR_CONF_SAMPLE_INTERVAL: |
354 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
df035528 BV |
355 | for (i = 0; i < ARRAY_SIZE(kecheng_kc_330b_sample_intervals); i++) { |
356 | rational[0] = g_variant_new_uint64(kecheng_kc_330b_sample_intervals[i][0]); | |
357 | rational[1] = g_variant_new_uint64(kecheng_kc_330b_sample_intervals[i][1]); | |
bc7be4a9 BV |
358 | tuple = g_variant_new_tuple(rational, 2); |
359 | g_variant_builder_add_value(&gvb, tuple); | |
360 | } | |
361 | *data = g_variant_builder_end(&gvb); | |
362 | break; | |
363 | case SR_CONF_SPL_WEIGHT_FREQ: | |
364 | *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq)); | |
365 | break; | |
366 | case SR_CONF_SPL_WEIGHT_TIME: | |
367 | *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time)); | |
368 | break; | |
369 | case SR_CONF_DATA_SOURCE: | |
370 | *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources)); | |
371 | break; | |
ed759a08 BV |
372 | default: |
373 | return SR_ERR_NA; | |
374 | } | |
375 | ||
a8806f03 | 376 | return SR_OK; |
ed759a08 BV |
377 | } |
378 | ||
695dc859 | 379 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
ed759a08 | 380 | { |
4f840ce9 | 381 | struct sr_dev_driver *di = sdi->driver; |
bc7be4a9 BV |
382 | struct drv_context *drvc; |
383 | struct dev_context *devc; | |
85ed4ab3 BV |
384 | struct sr_datafeed_packet packet; |
385 | struct sr_datafeed_meta meta; | |
386 | struct sr_config *src; | |
bc7be4a9 | 387 | struct sr_usb_dev_inst *usb; |
85ed4ab3 | 388 | GVariant *gvar, *rational[2]; |
85ed4ab3 | 389 | const uint64_t *si; |
7f22cd95 | 390 | int req_len, buf_len, len, ret; |
85ed4ab3 | 391 | unsigned char buf[9]; |
ed759a08 BV |
392 | |
393 | if (sdi->status != SR_ST_ACTIVE) | |
394 | return SR_ERR_DEV_CLOSED; | |
395 | ||
41812aca | 396 | drvc = di->context; |
bc7be4a9 BV |
397 | devc = sdi->priv; |
398 | usb = sdi->conn; | |
399 | ||
bc7be4a9 BV |
400 | devc->num_samples = 0; |
401 | ||
695dc859 | 402 | std_session_send_df_header(sdi, LOG_PREFIX); |
85ed4ab3 | 403 | |
f336618c | 404 | if (devc->data_source == DATA_SOURCE_LIVE) { |
85ed4ab3 BV |
405 | /* Force configuration. */ |
406 | kecheng_kc_330b_configure(sdi); | |
407 | ||
f336618c BV |
408 | if (kecheng_kc_330b_status_get(sdi, &ret) != SR_OK) |
409 | return SR_ERR; | |
f336618c BV |
410 | if (ret != DEVICE_ACTIVE) { |
411 | sr_err("Device is inactive"); | |
412 | /* Still continue though, since the device will | |
413 | * just return 30.0 until the user hits the button | |
414 | * on the device -- and then start feeding good | |
415 | * samples back. */ | |
416 | } | |
85ed4ab3 BV |
417 | } else { |
418 | if (kecheng_kc_330b_log_info_get(sdi, buf) != SR_OK) | |
419 | return SR_ERR; | |
7f22cd95 BV |
420 | devc->mqflags = buf[4] ? SR_MQFLAG_SPL_TIME_WEIGHT_S : SR_MQFLAG_SPL_TIME_WEIGHT_F; |
421 | devc->mqflags |= buf[5] ? SR_MQFLAG_SPL_FREQ_WEIGHT_C : SR_MQFLAG_SPL_FREQ_WEIGHT_A; | |
85ed4ab3 BV |
422 | devc->stored_samples = (buf[7] << 8) | buf[8]; |
423 | if (devc->stored_samples == 0) { | |
424 | /* Notify frontend of empty log by sending start/end packets. */ | |
695dc859 | 425 | std_session_send_df_end(sdi, LOG_PREFIX); |
85ed4ab3 BV |
426 | return SR_OK; |
427 | } | |
428 | ||
429 | if (devc->limit_samples && devc->limit_samples < devc->stored_samples) | |
430 | devc->stored_samples = devc->limit_samples; | |
431 | ||
432 | si = kecheng_kc_330b_sample_intervals[buf[1]]; | |
433 | rational[0] = g_variant_new_uint64(si[0]); | |
434 | rational[1] = g_variant_new_uint64(si[1]); | |
435 | gvar = g_variant_new_tuple(rational, 2); | |
436 | src = sr_config_new(SR_CONF_SAMPLE_INTERVAL, gvar); | |
437 | packet.type = SR_DF_META; | |
438 | packet.payload = &meta; | |
439 | meta.config = g_slist_append(NULL, src); | |
695dc859 | 440 | sr_session_send(sdi, &packet); |
85ed4ab3 | 441 | g_free(src); |
f336618c BV |
442 | } |
443 | ||
df035528 BV |
444 | if (!(devc->xfer = libusb_alloc_transfer(0))) |
445 | return SR_ERR; | |
446 | ||
102f1239 | 447 | usb_source_add(sdi->session, drvc->sr_ctx, 10, |
6c60facc | 448 | kecheng_kc_330b_handle_events, (void *)sdi); |
bc7be4a9 | 449 | |
85ed4ab3 BV |
450 | if (devc->data_source == DATA_SOURCE_LIVE) { |
451 | buf[0] = CMD_GET_LIVE_SPL; | |
452 | buf_len = 1; | |
453 | devc->state = LIVE_SPL_WAIT; | |
454 | devc->last_live_request = g_get_monotonic_time() / 1000; | |
455 | req_len = 3; | |
456 | } else { | |
457 | buf[0] = CMD_GET_LOG_DATA; | |
458 | buf[1] = 0; | |
459 | buf[2] = 0; | |
460 | buf_len = 4; | |
461 | devc->state = LOG_DATA_WAIT; | |
462 | if (devc->stored_samples < 63) | |
463 | buf[3] = devc->stored_samples; | |
464 | else | |
465 | buf[3] = 63; | |
466 | /* Command ack byte + 2 bytes per sample. */ | |
467 | req_len = 1 + buf[3] * 2; | |
468 | } | |
469 | ||
470 | ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, buf, buf_len, &len, 5); | |
bc7be4a9 BV |
471 | if (ret != 0 || len != 1) { |
472 | sr_dbg("Failed to start acquisition: %s", libusb_error_name(ret)); | |
df035528 BV |
473 | libusb_free_transfer(devc->xfer); |
474 | return SR_ERR; | |
475 | } | |
df035528 BV |
476 | |
477 | libusb_fill_bulk_transfer(devc->xfer, usb->devhdl, EP_IN, devc->buf, | |
85ed4ab3 | 478 | req_len, kecheng_kc_330b_receive_transfer, (void *)sdi, 15); |
df035528 BV |
479 | if (libusb_submit_transfer(devc->xfer) != 0) { |
480 | libusb_free_transfer(devc->xfer); | |
bc7be4a9 BV |
481 | return SR_ERR; |
482 | } | |
ed759a08 BV |
483 | |
484 | return SR_OK; | |
485 | } | |
486 | ||
695dc859 | 487 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
ed759a08 | 488 | { |
85ed4ab3 BV |
489 | struct dev_context *devc; |
490 | ||
ed759a08 BV |
491 | if (sdi->status != SR_ST_ACTIVE) |
492 | return SR_ERR_DEV_CLOSED; | |
493 | ||
df035528 BV |
494 | /* Signal USB transfer handler to clean up and stop. */ |
495 | sdi->status = SR_ST_STOPPING; | |
ed759a08 | 496 | |
85ed4ab3 BV |
497 | devc = sdi->priv; |
498 | if (devc->data_source == DATA_SOURCE_MEMORY && devc->config_dirty) { | |
499 | /* The protocol doesn't have a command to clear stored data; | |
500 | * it clears it whenever new configuration is set. That means | |
501 | * we can't just configure the device any time we want when | |
502 | * it's in DATA_SOURCE_MEMORY mode. The only safe time to do | |
503 | * it is now, when we're sure we've pulled in all the stored | |
504 | * data. */ | |
505 | kecheng_kc_330b_configure(sdi); | |
506 | } | |
507 | ||
ed759a08 BV |
508 | return SR_OK; |
509 | } | |
510 | ||
511 | SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info = { | |
512 | .name = "kecheng-kc-330b", | |
513 | .longname = "Kecheng KC-330B", | |
514 | .api_version = 1, | |
515 | .init = init, | |
700d6b64 | 516 | .cleanup = std_cleanup, |
ed759a08 | 517 | .scan = scan, |
c01bf34c | 518 | .dev_list = std_dev_list, |
a6630742 | 519 | .dev_clear = NULL, |
ed759a08 BV |
520 | .config_get = config_get, |
521 | .config_set = config_set, | |
522 | .config_list = config_list, | |
523 | .dev_open = dev_open, | |
524 | .dev_close = dev_close, | |
525 | .dev_acquisition_start = dev_acquisition_start, | |
526 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 527 | .context = NULL, |
ed759a08 | 528 | }; |