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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 | 24 | #define USB_CONN "1041.8101" |
a8806f03 | 25 | #define USB_INTERFACE 0 |
a8806f03 | 26 | |
05199c0a | 27 | static const uint32_t drvopts[] = { |
a8806f03 | 28 | SR_CONF_SOUNDLEVELMETER, |
05199c0a UH |
29 | }; |
30 | ||
31 | static const uint32_t devopts[] = { | |
a8806f03 | 32 | SR_CONF_CONTINUOUS, |
5827f61b BV |
33 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, |
34 | SR_CONF_SAMPLE_INTERVAL | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
35 | SR_CONF_DATALOG | SR_CONF_GET, | |
36 | SR_CONF_SPL_WEIGHT_FREQ | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
37 | SR_CONF_SPL_WEIGHT_TIME | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
38 | SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
bc7be4a9 BV |
39 | }; |
40 | ||
df035528 | 41 | SR_PRIV const uint64_t kecheng_kc_330b_sample_intervals[][2] = { |
bc7be4a9 BV |
42 | { 1, 8 }, |
43 | { 1, 2 }, | |
44 | { 1, 1 }, | |
45 | { 2, 1 }, | |
46 | { 5, 1 }, | |
47 | { 10, 1 }, | |
48 | { 60, 1 }, | |
49 | }; | |
50 | ||
51 | static const char *weight_freq[] = { | |
f8195cb2 | 52 | "A", "C", |
bc7be4a9 BV |
53 | }; |
54 | ||
55 | static const char *weight_time[] = { | |
f8195cb2 | 56 | "F", "S", |
bc7be4a9 BV |
57 | }; |
58 | ||
59 | static const char *data_sources[] = { | |
f8195cb2 | 60 | "Live", "Memory", |
a8806f03 BV |
61 | }; |
62 | ||
4f840ce9 ML |
63 | static int scan_kecheng(struct sr_dev_driver *di, |
64 | struct sr_usb_dev_inst *usb, char **model) | |
a8806f03 BV |
65 | { |
66 | struct drv_context *drvc; | |
67 | int len, ret; | |
68 | unsigned char cmd, buf[32]; | |
69 | ||
41812aca | 70 | drvc = di->context; |
a8806f03 BV |
71 | if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK) |
72 | return SR_ERR; | |
73 | ||
74 | cmd = CMD_IDENTIFY; | |
75 | ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, &cmd, 1, &len, 5); | |
76 | if (ret != 0) { | |
77 | libusb_close(usb->devhdl); | |
78 | sr_dbg("Failed to send Identify command: %s", libusb_error_name(ret)); | |
79 | return SR_ERR; | |
80 | } | |
81 | ||
82 | ret = libusb_bulk_transfer(usb->devhdl, EP_IN, buf, 32, &len, 10); | |
83 | if (ret != 0) { | |
84 | libusb_close(usb->devhdl); | |
85 | sr_dbg("Failed to receive response: %s", libusb_error_name(ret)); | |
86 | return SR_ERR; | |
87 | } | |
88 | ||
89 | libusb_close(usb->devhdl); | |
90 | usb->devhdl = NULL; | |
91 | ||
92 | if (len < 2 || buf[0] != (CMD_IDENTIFY | 0x80) || buf[1] > 30) { | |
93 | sr_dbg("Invalid response to Identify command"); | |
94 | return SR_ERR; | |
95 | } | |
96 | ||
97 | buf[buf[1] + 2] = '\x0'; | |
98 | *model = g_strndup((const gchar *)buf + 2, 30); | |
a8806f03 BV |
99 | |
100 | return SR_OK; | |
101 | } | |
102 | ||
4f840ce9 | 103 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
ed759a08 BV |
104 | { |
105 | struct drv_context *drvc; | |
a8806f03 BV |
106 | struct dev_context *devc; |
107 | struct sr_dev_inst *sdi; | |
a8806f03 BV |
108 | GSList *usb_devices, *devices, *l; |
109 | char *model; | |
ed759a08 BV |
110 | |
111 | (void)options; | |
112 | ||
41812aca | 113 | drvc = di->context; |
ed759a08 | 114 | |
a8806f03 BV |
115 | devices = NULL; |
116 | if ((usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_CONN))) { | |
117 | /* We have a list of sr_usb_dev_inst matching the connection | |
118 | * string. Wrap them in sr_dev_inst and we're done. */ | |
119 | for (l = usb_devices; l; l = l->next) { | |
4f840ce9 | 120 | if (scan_kecheng(di, l->data, &model) != SR_OK) |
a8806f03 | 121 | continue; |
aac29cc1 | 122 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be | 123 | sdi->status = SR_ST_INACTIVE; |
b15ff1c9 | 124 | sdi->vendor = g_strdup("Kecheng"); |
0af636be | 125 | sdi->model = model; /* Already g_strndup()'d. */ |
a8806f03 BV |
126 | sdi->inst_type = SR_INST_USB; |
127 | sdi->conn = l->data; | |
5e23fcab | 128 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL"); |
f57d8ffe | 129 | devc = g_malloc0(sizeof(struct dev_context)); |
a8806f03 BV |
130 | sdi->priv = devc; |
131 | devc->limit_samples = 0; | |
bc7be4a9 BV |
132 | /* The protocol provides no way to read the current |
133 | * settings, so we'll enforce these. */ | |
134 | devc->sample_interval = DEFAULT_SAMPLE_INTERVAL; | |
135 | devc->alarm_low = DEFAULT_ALARM_LOW; | |
136 | devc->alarm_high = DEFAULT_ALARM_HIGH; | |
137 | devc->mqflags = DEFAULT_WEIGHT_TIME | DEFAULT_WEIGHT_FREQ; | |
138 | devc->data_source = DEFAULT_DATA_SOURCE; | |
85ed4ab3 | 139 | devc->config_dirty = FALSE; |
bc7be4a9 BV |
140 | |
141 | /* TODO: Set date/time? */ | |
a8806f03 | 142 | |
a8806f03 BV |
143 | devices = g_slist_append(devices, sdi); |
144 | } | |
145 | g_slist_free(usb_devices); | |
146 | } else | |
147 | g_slist_free_full(usb_devices, g_free); | |
ed759a08 | 148 | |
15a5bfe4 | 149 | return std_scan_complete(di, devices); |
ed759a08 BV |
150 | } |
151 | ||
ed759a08 BV |
152 | static int dev_open(struct sr_dev_inst *sdi) |
153 | { | |
4f840ce9 | 154 | struct sr_dev_driver *di = sdi->driver; |
efa98402 | 155 | struct drv_context *drvc = di->context; |
a8806f03 BV |
156 | struct sr_usb_dev_inst *usb; |
157 | int ret; | |
158 | ||
a8806f03 | 159 | usb = sdi->conn; |
ed759a08 | 160 | |
a8806f03 BV |
161 | if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK) |
162 | return SR_ERR; | |
ed759a08 | 163 | |
85ed4ab3 BV |
164 | if ((ret = libusb_set_configuration(usb->devhdl, 1))) { |
165 | sr_err("Failed to set configuration: %s.", libusb_error_name(ret)); | |
166 | return SR_ERR; | |
167 | } | |
168 | ||
a8806f03 BV |
169 | if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE))) { |
170 | sr_err("Failed to claim interface: %s.", libusb_error_name(ret)); | |
171 | return SR_ERR; | |
172 | } | |
ed759a08 | 173 | |
7e463623 | 174 | return SR_OK; |
ed759a08 BV |
175 | } |
176 | ||
177 | static int dev_close(struct sr_dev_inst *sdi) | |
178 | { | |
85ed4ab3 | 179 | struct dev_context *devc; |
a8806f03 BV |
180 | struct sr_usb_dev_inst *usb; |
181 | ||
a8806f03 | 182 | usb = sdi->conn; |
ed759a08 | 183 | |
a8806f03 | 184 | if (!usb->devhdl) |
f1ba6b4b | 185 | return SR_ERR_BUG; |
ed759a08 | 186 | |
85ed4ab3 BV |
187 | /* This allows a frontend to configure the device without ever |
188 | * doing an acquisition step. */ | |
189 | devc = sdi->priv; | |
190 | if (!devc->config_dirty) | |
191 | kecheng_kc_330b_configure(sdi); | |
192 | ||
a8806f03 BV |
193 | libusb_release_interface(usb->devhdl, USB_INTERFACE); |
194 | libusb_close(usb->devhdl); | |
195 | usb->devhdl = NULL; | |
ed759a08 BV |
196 | |
197 | return SR_OK; | |
198 | } | |
199 | ||
dd7a72ea UH |
200 | static int config_get(uint32_t key, GVariant **data, |
201 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
ed759a08 | 202 | { |
a8806f03 | 203 | struct dev_context *devc; |
bc7be4a9 BV |
204 | GVariant *rational[2]; |
205 | const uint64_t *si; | |
ed759a08 | 206 | |
53b4680f | 207 | (void)cg; |
d3c74a6f | 208 | |
a8806f03 | 209 | devc = sdi->priv; |
ed759a08 | 210 | switch (key) { |
a8806f03 BV |
211 | case SR_CONF_LIMIT_SAMPLES: |
212 | *data = g_variant_new_uint64(devc->limit_samples); | |
213 | break; | |
bc7be4a9 | 214 | case SR_CONF_SAMPLE_INTERVAL: |
df035528 | 215 | si = kecheng_kc_330b_sample_intervals[devc->sample_interval]; |
bc7be4a9 BV |
216 | rational[0] = g_variant_new_uint64(si[0]); |
217 | rational[1] = g_variant_new_uint64(si[1]); | |
218 | *data = g_variant_new_tuple(rational, 2); | |
219 | break; | |
220 | case SR_CONF_DATALOG: | |
85ed4ab3 BV |
221 | /* There really isn't a way to be sure the device is logging. */ |
222 | return SR_ERR_NA; | |
bc7be4a9 BV |
223 | break; |
224 | case SR_CONF_SPL_WEIGHT_FREQ: | |
225 | if (devc->mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A) | |
226 | *data = g_variant_new_string("A"); | |
227 | else | |
228 | *data = g_variant_new_string("C"); | |
229 | break; | |
230 | case SR_CONF_SPL_WEIGHT_TIME: | |
231 | if (devc->mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_F) | |
232 | *data = g_variant_new_string("F"); | |
233 | else | |
234 | *data = g_variant_new_string("S"); | |
235 | break; | |
236 | case SR_CONF_DATA_SOURCE: | |
237 | if (devc->data_source == DATA_SOURCE_LIVE) | |
238 | *data = g_variant_new_string("Live"); | |
239 | else | |
240 | *data = g_variant_new_string("Memory"); | |
241 | break; | |
ed759a08 BV |
242 | default: |
243 | return SR_ERR_NA; | |
244 | } | |
245 | ||
a8806f03 | 246 | return SR_OK; |
ed759a08 BV |
247 | } |
248 | ||
dd7a72ea UH |
249 | static int config_set(uint32_t key, GVariant *data, |
250 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
ed759a08 | 251 | { |
a8806f03 | 252 | struct dev_context *devc; |
bc7be4a9 BV |
253 | uint64_t p, q; |
254 | unsigned int i; | |
a9010323 | 255 | int tmp; |
bc7be4a9 | 256 | const char *tmp_str; |
ed759a08 | 257 | |
53b4680f | 258 | (void)cg; |
d3c74a6f | 259 | |
a8806f03 | 260 | devc = sdi->priv; |
ed759a08 | 261 | switch (key) { |
a8806f03 BV |
262 | case SR_CONF_LIMIT_SAMPLES: |
263 | devc->limit_samples = g_variant_get_uint64(data); | |
264 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
265 | devc->limit_samples); | |
266 | break; | |
bc7be4a9 BV |
267 | case SR_CONF_SAMPLE_INTERVAL: |
268 | g_variant_get(data, "(tt)", &p, &q); | |
df035528 BV |
269 | for (i = 0; i < ARRAY_SIZE(kecheng_kc_330b_sample_intervals); i++) { |
270 | if (kecheng_kc_330b_sample_intervals[i][0] != p || kecheng_kc_330b_sample_intervals[i][1] != q) | |
bc7be4a9 BV |
271 | continue; |
272 | devc->sample_interval = i; | |
85ed4ab3 | 273 | devc->config_dirty = TRUE; |
bc7be4a9 BV |
274 | break; |
275 | } | |
df035528 | 276 | if (i == ARRAY_SIZE(kecheng_kc_330b_sample_intervals)) |
a9010323 | 277 | return SR_ERR_ARG; |
bc7be4a9 BV |
278 | break; |
279 | case SR_CONF_SPL_WEIGHT_FREQ: | |
280 | tmp_str = g_variant_get_string(data, NULL); | |
281 | if (!strcmp(tmp_str, "A")) | |
282 | tmp = SR_MQFLAG_SPL_FREQ_WEIGHT_A; | |
283 | else if (!strcmp(tmp_str, "C")) | |
284 | tmp = SR_MQFLAG_SPL_FREQ_WEIGHT_C; | |
285 | else | |
286 | return SR_ERR_ARG; | |
287 | devc->mqflags &= ~(SR_MQFLAG_SPL_FREQ_WEIGHT_A | SR_MQFLAG_SPL_FREQ_WEIGHT_C); | |
288 | devc->mqflags |= tmp; | |
85ed4ab3 | 289 | devc->config_dirty = TRUE; |
bc7be4a9 BV |
290 | break; |
291 | case SR_CONF_SPL_WEIGHT_TIME: | |
292 | tmp_str = g_variant_get_string(data, NULL); | |
293 | if (!strcmp(tmp_str, "F")) | |
294 | tmp = SR_MQFLAG_SPL_TIME_WEIGHT_F; | |
295 | else if (!strcmp(tmp_str, "S")) | |
296 | tmp = SR_MQFLAG_SPL_TIME_WEIGHT_S; | |
297 | else | |
298 | return SR_ERR_ARG; | |
299 | devc->mqflags &= ~(SR_MQFLAG_SPL_TIME_WEIGHT_F | SR_MQFLAG_SPL_TIME_WEIGHT_S); | |
300 | devc->mqflags |= tmp; | |
85ed4ab3 | 301 | devc->config_dirty = TRUE; |
bc7be4a9 BV |
302 | break; |
303 | case SR_CONF_DATA_SOURCE: | |
304 | tmp_str = g_variant_get_string(data, NULL); | |
305 | if (!strcmp(tmp_str, "Live")) | |
306 | devc->data_source = DATA_SOURCE_LIVE; | |
307 | else if (!strcmp(tmp_str, "Memory")) | |
308 | devc->data_source = DATA_SOURCE_MEMORY; | |
309 | else | |
310 | return SR_ERR; | |
85ed4ab3 | 311 | devc->config_dirty = TRUE; |
bc7be4a9 | 312 | break; |
ed759a08 | 313 | default: |
a9010323 | 314 | return SR_ERR_NA; |
ed759a08 BV |
315 | } |
316 | ||
a9010323 | 317 | return SR_OK; |
ed759a08 BV |
318 | } |
319 | ||
dd7a72ea UH |
320 | static int config_list(uint32_t key, GVariant **data, |
321 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
ed759a08 | 322 | { |
ed759a08 | 323 | switch (key) { |
a8806f03 | 324 | case SR_CONF_DEVICE_OPTIONS: |
05199c0a | 325 | return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts); |
bc7be4a9 | 326 | case SR_CONF_SAMPLE_INTERVAL: |
58ffcf97 | 327 | *data = std_gvar_tuple_array(ARRAY_AND_SIZE(kecheng_kc_330b_sample_intervals)); |
bc7be4a9 BV |
328 | break; |
329 | case SR_CONF_SPL_WEIGHT_FREQ: | |
53012da6 | 330 | *data = g_variant_new_strv(ARRAY_AND_SIZE(weight_freq)); |
bc7be4a9 BV |
331 | break; |
332 | case SR_CONF_SPL_WEIGHT_TIME: | |
53012da6 | 333 | *data = g_variant_new_strv(ARRAY_AND_SIZE(weight_time)); |
bc7be4a9 BV |
334 | break; |
335 | case SR_CONF_DATA_SOURCE: | |
53012da6 | 336 | *data = g_variant_new_strv(ARRAY_AND_SIZE(data_sources)); |
bc7be4a9 | 337 | break; |
ed759a08 BV |
338 | default: |
339 | return SR_ERR_NA; | |
340 | } | |
341 | ||
a8806f03 | 342 | return SR_OK; |
ed759a08 BV |
343 | } |
344 | ||
695dc859 | 345 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
ed759a08 | 346 | { |
4f840ce9 | 347 | struct sr_dev_driver *di = sdi->driver; |
bc7be4a9 BV |
348 | struct drv_context *drvc; |
349 | struct dev_context *devc; | |
85ed4ab3 BV |
350 | struct sr_datafeed_packet packet; |
351 | struct sr_datafeed_meta meta; | |
352 | struct sr_config *src; | |
bc7be4a9 | 353 | struct sr_usb_dev_inst *usb; |
85ed4ab3 | 354 | GVariant *gvar, *rational[2]; |
85ed4ab3 | 355 | const uint64_t *si; |
7f22cd95 | 356 | int req_len, buf_len, len, ret; |
85ed4ab3 | 357 | unsigned char buf[9]; |
ed759a08 | 358 | |
41812aca | 359 | drvc = di->context; |
bc7be4a9 BV |
360 | devc = sdi->priv; |
361 | usb = sdi->conn; | |
362 | ||
bc7be4a9 BV |
363 | devc->num_samples = 0; |
364 | ||
bee2b016 | 365 | std_session_send_df_header(sdi); |
85ed4ab3 | 366 | |
f336618c | 367 | if (devc->data_source == DATA_SOURCE_LIVE) { |
85ed4ab3 BV |
368 | /* Force configuration. */ |
369 | kecheng_kc_330b_configure(sdi); | |
370 | ||
f336618c BV |
371 | if (kecheng_kc_330b_status_get(sdi, &ret) != SR_OK) |
372 | return SR_ERR; | |
f336618c BV |
373 | if (ret != DEVICE_ACTIVE) { |
374 | sr_err("Device is inactive"); | |
375 | /* Still continue though, since the device will | |
376 | * just return 30.0 until the user hits the button | |
377 | * on the device -- and then start feeding good | |
378 | * samples back. */ | |
379 | } | |
85ed4ab3 BV |
380 | } else { |
381 | if (kecheng_kc_330b_log_info_get(sdi, buf) != SR_OK) | |
382 | return SR_ERR; | |
7f22cd95 BV |
383 | devc->mqflags = buf[4] ? SR_MQFLAG_SPL_TIME_WEIGHT_S : SR_MQFLAG_SPL_TIME_WEIGHT_F; |
384 | devc->mqflags |= buf[5] ? SR_MQFLAG_SPL_FREQ_WEIGHT_C : SR_MQFLAG_SPL_FREQ_WEIGHT_A; | |
85ed4ab3 BV |
385 | devc->stored_samples = (buf[7] << 8) | buf[8]; |
386 | if (devc->stored_samples == 0) { | |
387 | /* Notify frontend of empty log by sending start/end packets. */ | |
bee2b016 | 388 | std_session_send_df_end(sdi); |
85ed4ab3 BV |
389 | return SR_OK; |
390 | } | |
391 | ||
392 | if (devc->limit_samples && devc->limit_samples < devc->stored_samples) | |
393 | devc->stored_samples = devc->limit_samples; | |
394 | ||
395 | si = kecheng_kc_330b_sample_intervals[buf[1]]; | |
396 | rational[0] = g_variant_new_uint64(si[0]); | |
397 | rational[1] = g_variant_new_uint64(si[1]); | |
398 | gvar = g_variant_new_tuple(rational, 2); | |
399 | src = sr_config_new(SR_CONF_SAMPLE_INTERVAL, gvar); | |
400 | packet.type = SR_DF_META; | |
401 | packet.payload = &meta; | |
402 | meta.config = g_slist_append(NULL, src); | |
695dc859 | 403 | sr_session_send(sdi, &packet); |
85ed4ab3 | 404 | g_free(src); |
f336618c BV |
405 | } |
406 | ||
df035528 BV |
407 | if (!(devc->xfer = libusb_alloc_transfer(0))) |
408 | return SR_ERR; | |
409 | ||
102f1239 | 410 | usb_source_add(sdi->session, drvc->sr_ctx, 10, |
6c60facc | 411 | kecheng_kc_330b_handle_events, (void *)sdi); |
bc7be4a9 | 412 | |
85ed4ab3 BV |
413 | if (devc->data_source == DATA_SOURCE_LIVE) { |
414 | buf[0] = CMD_GET_LIVE_SPL; | |
415 | buf_len = 1; | |
416 | devc->state = LIVE_SPL_WAIT; | |
417 | devc->last_live_request = g_get_monotonic_time() / 1000; | |
418 | req_len = 3; | |
419 | } else { | |
420 | buf[0] = CMD_GET_LOG_DATA; | |
421 | buf[1] = 0; | |
422 | buf[2] = 0; | |
423 | buf_len = 4; | |
424 | devc->state = LOG_DATA_WAIT; | |
425 | if (devc->stored_samples < 63) | |
426 | buf[3] = devc->stored_samples; | |
427 | else | |
428 | buf[3] = 63; | |
429 | /* Command ack byte + 2 bytes per sample. */ | |
430 | req_len = 1 + buf[3] * 2; | |
431 | } | |
432 | ||
433 | ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, buf, buf_len, &len, 5); | |
bc7be4a9 BV |
434 | if (ret != 0 || len != 1) { |
435 | sr_dbg("Failed to start acquisition: %s", libusb_error_name(ret)); | |
df035528 BV |
436 | libusb_free_transfer(devc->xfer); |
437 | return SR_ERR; | |
438 | } | |
df035528 BV |
439 | |
440 | libusb_fill_bulk_transfer(devc->xfer, usb->devhdl, EP_IN, devc->buf, | |
85ed4ab3 | 441 | req_len, kecheng_kc_330b_receive_transfer, (void *)sdi, 15); |
df035528 BV |
442 | if (libusb_submit_transfer(devc->xfer) != 0) { |
443 | libusb_free_transfer(devc->xfer); | |
bc7be4a9 BV |
444 | return SR_ERR; |
445 | } | |
ed759a08 BV |
446 | |
447 | return SR_OK; | |
448 | } | |
449 | ||
695dc859 | 450 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
ed759a08 | 451 | { |
85ed4ab3 BV |
452 | struct dev_context *devc; |
453 | ||
df035528 BV |
454 | /* Signal USB transfer handler to clean up and stop. */ |
455 | sdi->status = SR_ST_STOPPING; | |
ed759a08 | 456 | |
85ed4ab3 BV |
457 | devc = sdi->priv; |
458 | if (devc->data_source == DATA_SOURCE_MEMORY && devc->config_dirty) { | |
459 | /* The protocol doesn't have a command to clear stored data; | |
460 | * it clears it whenever new configuration is set. That means | |
461 | * we can't just configure the device any time we want when | |
462 | * it's in DATA_SOURCE_MEMORY mode. The only safe time to do | |
463 | * it is now, when we're sure we've pulled in all the stored | |
464 | * data. */ | |
465 | kecheng_kc_330b_configure(sdi); | |
466 | } | |
467 | ||
ed759a08 BV |
468 | return SR_OK; |
469 | } | |
470 | ||
dd5c48a6 | 471 | static struct sr_dev_driver kecheng_kc_330b_driver_info = { |
ed759a08 BV |
472 | .name = "kecheng-kc-330b", |
473 | .longname = "Kecheng KC-330B", | |
474 | .api_version = 1, | |
c2fdcc25 | 475 | .init = std_init, |
700d6b64 | 476 | .cleanup = std_cleanup, |
ed759a08 | 477 | .scan = scan, |
c01bf34c | 478 | .dev_list = std_dev_list, |
f778bf02 | 479 | .dev_clear = std_dev_clear, |
ed759a08 BV |
480 | .config_get = config_get, |
481 | .config_set = config_set, | |
482 | .config_list = config_list, | |
483 | .dev_open = dev_open, | |
484 | .dev_close = dev_close, | |
485 | .dev_acquisition_start = dev_acquisition_start, | |
486 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 487 | .context = NULL, |
ed759a08 | 488 | }; |
dd5c48a6 | 489 | SR_REGISTER_DEV_DRIVER(kecheng_kc_330b_driver_info); |