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3b533202 | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
3b533202 BV |
3 | * |
4 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> | |
5 | * With protocol information from the hantekdso project, | |
6 | * Copyright (C) 2008 Oleg Khudyakov <prcoder@gmail.com> | |
7 | * | |
8 | * This program is free software: you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation, either version 3 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
20 | */ | |
21 | ||
6ec6c43b | 22 | #include <config.h> |
3b533202 BV |
23 | #include <string.h> |
24 | #include <glib.h> | |
25 | #include <libusb.h> | |
c1aae900 | 26 | #include <libsigrok/libsigrok.h> |
515ab088 | 27 | #include "libsigrok-internal.h" |
caeb8d7a | 28 | #include "protocol.h" |
3b533202 | 29 | |
c118080b | 30 | static int send_begin(const struct sr_dev_inst *sdi) |
3b533202 | 31 | { |
c118080b | 32 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
33 | int ret; |
34 | unsigned char buffer[] = {0x0f, 0x03, 0x03, 0x03, 0x68, 0xac, 0xfe, | |
35 | 0x00, 0x01, 0x00}; | |
36 | ||
e98b7f1b | 37 | sr_dbg("Sending CTRL_BEGINCOMMAND."); |
3b533202 | 38 | |
c118080b BV |
39 | usb = sdi->conn; |
40 | if ((ret = libusb_control_transfer(usb->devhdl, | |
3b533202 BV |
41 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_BEGINCOMMAND, |
42 | 0, 0, buffer, sizeof(buffer), 200)) != sizeof(buffer)) { | |
d4928d71 PS |
43 | sr_err("Failed to send begincommand: %s.", |
44 | libusb_error_name(ret)); | |
3b533202 BV |
45 | return SR_ERR; |
46 | } | |
47 | ||
48 | return SR_OK; | |
49 | } | |
50 | ||
c118080b | 51 | static int send_bulkcmd(const struct sr_dev_inst *sdi, uint8_t *cmdstring, int cmdlen) |
3b533202 | 52 | { |
c118080b | 53 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
54 | int ret, tmp; |
55 | ||
c118080b BV |
56 | usb = sdi->conn; |
57 | ||
58 | if (send_begin(sdi) != SR_OK) | |
3b533202 BV |
59 | return SR_ERR; |
60 | ||
c118080b BV |
61 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, cmdstring, |
62 | cmdlen, &tmp, 200)) != 0) | |
3b533202 BV |
63 | return SR_ERR; |
64 | ||
65 | return SR_OK; | |
66 | } | |
67 | ||
d87c1766 | 68 | static int dso_getmps(libusb_device *dev) |
3b533202 BV |
69 | { |
70 | struct libusb_device_descriptor des; | |
71 | struct libusb_config_descriptor *conf_dsc; | |
72 | const struct libusb_interface_descriptor *intf_dsc; | |
73 | int mps; | |
74 | ||
2a8f2d41 | 75 | libusb_get_device_descriptor(dev, &des); |
3b533202 BV |
76 | |
77 | if (des.bNumConfigurations != 1) | |
78 | return 0; | |
79 | ||
80 | if (libusb_get_config_descriptor(dev, 0, &conf_dsc) != 0) | |
81 | return 0; | |
82 | ||
83 | mps = 0; | |
84 | intf_dsc = &(conf_dsc->interface[0].altsetting[0]); | |
85 | if (intf_dsc->bNumEndpoints != 2) | |
86 | goto err; | |
87 | ||
88 | if ((intf_dsc->endpoint[0].bEndpointAddress & 0x8f) != | |
89 | (2 | LIBUSB_ENDPOINT_OUT)) | |
90 | /* The first endpoint should be 2 (outbound). */ | |
91 | goto err; | |
92 | ||
93 | if ((intf_dsc->endpoint[1].bEndpointAddress & 0x8f) != | |
94 | (6 | LIBUSB_ENDPOINT_IN)) | |
95 | /* The second endpoint should be 6 (inbound). */ | |
96 | goto err; | |
97 | ||
98 | mps = intf_dsc->endpoint[1].wMaxPacketSize; | |
99 | ||
100 | err: | |
101 | if (conf_dsc) | |
102 | libusb_free_config_descriptor(conf_dsc); | |
103 | ||
104 | return mps; | |
105 | } | |
106 | ||
25a0f108 | 107 | SR_PRIV int dso_open(struct sr_dev_inst *sdi) |
3b533202 | 108 | { |
269971dd | 109 | struct dev_context *devc; |
e32862eb | 110 | struct drv_context *drvc = sdi->driver->context; |
c118080b BV |
111 | struct sr_usb_dev_inst *usb; |
112 | struct libusb_device_descriptor des; | |
113 | libusb_device **devlist; | |
395206f4 SA |
114 | int err, i; |
115 | char connection_id[64]; | |
3b533202 | 116 | |
269971dd | 117 | devc = sdi->priv; |
c118080b | 118 | usb = sdi->conn; |
3b533202 | 119 | |
d4abb463 | 120 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
3b533202 | 121 | for (i = 0; devlist[i]; i++) { |
2a8f2d41 | 122 | libusb_get_device_descriptor(devlist[i], &des); |
3b533202 | 123 | |
269971dd BV |
124 | if (des.idVendor != devc->profile->fw_vid |
125 | || des.idProduct != devc->profile->fw_pid) | |
3b533202 BV |
126 | continue; |
127 | ||
395206f4 SA |
128 | if ((sdi->status == SR_ST_INITIALIZING) || |
129 | (sdi->status == SR_ST_INACTIVE)) { | |
3b533202 | 130 | /* |
395206f4 | 131 | * Check device by its physical USB bus/port address. |
3b533202 | 132 | */ |
395206f4 SA |
133 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
134 | if (strcmp(sdi->connection_id, connection_id)) | |
135 | /* This is not the one. */ | |
3b533202 BV |
136 | continue; |
137 | } | |
138 | ||
c118080b BV |
139 | if (!(err = libusb_open(devlist[i], &usb->devhdl))) { |
140 | if (usb->address == 0xff) | |
3b533202 BV |
141 | /* |
142 | * first time we touch this device after firmware upload, | |
143 | * so we don't know the address yet. | |
144 | */ | |
c118080b | 145 | usb->address = libusb_get_device_address(devlist[i]); |
3b533202 | 146 | |
e98b7f1b UH |
147 | if (!(devc->epin_maxpacketsize = dso_getmps(devlist[i]))) |
148 | sr_err("Wrong endpoint profile."); | |
3b533202 BV |
149 | else { |
150 | sdi->status = SR_ST_ACTIVE; | |
395206f4 SA |
151 | sr_info("Opened device on %d.%d (logical) / " |
152 | "%s (physical) interface %d.", | |
153 | usb->bus, usb->address, | |
154 | sdi->connection_id, USB_INTERFACE); | |
3b533202 BV |
155 | } |
156 | } else { | |
d4928d71 PS |
157 | sr_err("Failed to open device: %s.", |
158 | libusb_error_name(err)); | |
3b533202 BV |
159 | } |
160 | ||
e98b7f1b | 161 | /* If we made it here, we handled the device (somehow). */ |
3b533202 BV |
162 | break; |
163 | } | |
164 | libusb_free_device_list(devlist, 1); | |
165 | ||
166 | if (sdi->status != SR_ST_ACTIVE) | |
167 | return SR_ERR; | |
168 | ||
169 | return SR_OK; | |
170 | } | |
171 | ||
172 | SR_PRIV void dso_close(struct sr_dev_inst *sdi) | |
173 | { | |
c118080b | 174 | struct sr_usb_dev_inst *usb; |
3b533202 | 175 | |
c118080b | 176 | usb = sdi->conn; |
3b533202 | 177 | |
98fec29e | 178 | if (!usb->devhdl) |
3b533202 BV |
179 | return; |
180 | ||
395206f4 SA |
181 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", |
182 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
c118080b BV |
183 | libusb_release_interface(usb->devhdl, USB_INTERFACE); |
184 | libusb_close(usb->devhdl); | |
185 | usb->devhdl = NULL; | |
3b533202 BV |
186 | sdi->status = SR_ST_INACTIVE; |
187 | ||
188 | } | |
189 | ||
c118080b | 190 | static int get_channel_offsets(const struct sr_dev_inst *sdi) |
3b533202 | 191 | { |
c118080b BV |
192 | struct dev_context *devc; |
193 | struct sr_usb_dev_inst *usb; | |
2715c0b8 BV |
194 | GString *gs; |
195 | int chan, v, ret; | |
3b533202 | 196 | |
e98b7f1b | 197 | sr_dbg("Getting channel offsets."); |
3b533202 | 198 | |
c118080b BV |
199 | devc = sdi->priv; |
200 | usb = sdi->conn; | |
201 | ||
202 | ret = libusb_control_transfer(usb->devhdl, | |
3b533202 BV |
203 | LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_VENDOR, |
204 | CTRL_READ_EEPROM, EEPROM_CHANNEL_OFFSETS, 0, | |
269971dd BV |
205 | (unsigned char *)&devc->channel_levels, |
206 | sizeof(devc->channel_levels), 200); | |
207 | if (ret != sizeof(devc->channel_levels)) { | |
d4928d71 PS |
208 | sr_err("Failed to get channel offsets: %s.", |
209 | libusb_error_name(ret)); | |
3b533202 BV |
210 | return SR_ERR; |
211 | } | |
212 | ||
2715c0b8 BV |
213 | /* Comes in as 16-bit numbers with the second byte always 0 on |
214 | * the DSO-2090. Guessing this is supposed to be big-endian, | |
215 | * since that's how voltage offsets are submitted back to the DSO. | |
216 | * Convert to host order now, so we can use them natively. | |
217 | */ | |
07ffa5b3 | 218 | for (chan = 0; chan < NUM_CHANNELS; chan++) { |
2715c0b8 | 219 | for (v = 0; v < 9; v++) { |
e98b7f1b UH |
220 | devc->channel_levels[chan][v][0] = |
221 | g_ntohs(devc->channel_levels[chan][v][0]); | |
222 | devc->channel_levels[chan][v][1] = | |
223 | g_ntohs(devc->channel_levels[chan][v][1]); | |
2715c0b8 BV |
224 | } |
225 | } | |
226 | ||
227 | if (sr_log_loglevel_get() >= SR_LOG_DBG) { | |
228 | gs = g_string_sized_new(128); | |
07ffa5b3 | 229 | for (chan = 0; chan < NUM_CHANNELS; chan++) { |
e98b7f1b | 230 | g_string_printf(gs, "CH%d:", chan + 1); |
2715c0b8 BV |
231 | for (v = 0; v < 9; v++) { |
232 | g_string_append_printf(gs, " %.4x-%.4x", | |
e98b7f1b UH |
233 | devc->channel_levels[chan][v][0], |
234 | devc->channel_levels[chan][v][1]); | |
2715c0b8 | 235 | } |
cbc6f3b2 | 236 | sr_dbg("%s", gs->str); |
2715c0b8 BV |
237 | } |
238 | g_string_free(gs, TRUE); | |
239 | } | |
240 | ||
3b533202 BV |
241 | return SR_OK; |
242 | } | |
243 | ||
87f56d01 PM |
244 | /* See http://openhantek.sourceforge.net/doc/namespaceHantek.html#ac1cd181814cf3da74771c29800b39028 */ |
245 | static int dso2250_set_trigger_samplerate(const struct sr_dev_inst *sdi) | |
246 | { | |
247 | struct dev_context *devc; | |
248 | struct sr_usb_dev_inst *usb; | |
249 | int ret, tmp; | |
250 | int base; | |
251 | uint8_t cmdstring[12]; | |
252 | ||
253 | ||
254 | devc = sdi->priv; | |
255 | usb = sdi->conn; | |
256 | ||
257 | memset(cmdstring, 0, sizeof(cmdstring)); | |
258 | /* Command */ | |
259 | cmdstring[0] = CMD_2250_SET_TRIGGERSOURCE; | |
260 | sr_dbg("Trigger source %s.", devc->triggersource); | |
261 | if (!strcmp("CH2", devc->triggersource)) | |
262 | tmp = 3; | |
263 | else if (!strcmp("CH1", devc->triggersource)) | |
264 | tmp = 2; | |
265 | else if (!strcmp("EXT", devc->triggersource)) | |
266 | tmp = 0; | |
267 | else { | |
268 | sr_err("Invalid trigger source: '%s'.", devc->triggersource); | |
269 | return SR_ERR_ARG; | |
270 | } | |
271 | cmdstring[2] = tmp; | |
272 | ||
273 | ||
274 | sr_dbg("Trigger slope: %d.", devc->triggerslope); | |
275 | cmdstring[2] |= (devc->triggerslope == SLOPE_NEGATIVE ? 1 : 0) << 3; | |
276 | ||
277 | if (send_begin(sdi) != SR_OK) | |
278 | return SR_ERR; | |
279 | ||
280 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, | |
281 | cmdstring, 8, &tmp, 100)) != 0) { | |
282 | sr_err("Failed to set trigger/samplerate: %s.", | |
283 | libusb_error_name(ret)); | |
284 | return SR_ERR; | |
285 | } | |
286 | ||
287 | ||
288 | /* Frame size */ | |
289 | sr_dbg("Frame size: %d.", devc->framesize); | |
290 | cmdstring[0] = CMD_2250_SET_RECORD_LENGTH; | |
291 | cmdstring[2] = devc->framesize == FRAMESIZE_SMALL ? 0x01 : 0x02; | |
292 | ||
293 | if (send_begin(sdi) != SR_OK) | |
294 | return SR_ERR; | |
295 | ||
296 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, | |
297 | cmdstring, 4, &tmp, 100)) != 0) { | |
298 | sr_err("Failed to set record length: %s.", | |
299 | libusb_error_name(ret)); | |
300 | return SR_ERR; | |
301 | } | |
302 | ||
303 | ||
304 | memset(cmdstring, 0, sizeof(cmdstring)); | |
305 | cmdstring[0] = CMD_2250_SET_SAMPLERATE; | |
306 | /* Timebase fast */ | |
307 | sr_dbg("Time base index: %d.", devc->timebase); | |
308 | base = 100e6; | |
309 | if (devc->timebase < TIME_40us) { | |
310 | if (devc->framesize != FRAMESIZE_SMALL) { | |
311 | sr_err("Timebase < 40us only supported with 10K buffer."); | |
312 | return SR_ERR_ARG; | |
313 | } | |
314 | ||
315 | /* Fast mode on */ | |
316 | base = 200e6; | |
317 | cmdstring[2] |= 1; | |
318 | } | |
319 | ||
320 | /* Downsampling on */ | |
321 | cmdstring[2] |= 2; | |
322 | /* Downsampler = 1comp((Base / Samplerate) - 2) | |
323 | * Base == 100Msa resp. 200MSa | |
324 | * | |
325 | * Example for 500kSa/s: | |
326 | * 100e6 / 500e3 => 200 | |
327 | * 200 - 2 => 198 | |
328 | * 1comp(198) => ff39 */ | |
329 | ||
330 | tmp = base * timebase_to_time(devc->timebase); | |
331 | tmp = 200; | |
332 | if (tmp < 0) | |
333 | return SR_ERR_ARG; | |
334 | tmp -= 2; | |
335 | if (tmp < 0) | |
336 | return SR_ERR_ARG; | |
337 | tmp = ~tmp; | |
338 | sr_dbg("sample rate value: 0x%x.", tmp & 0xffff); | |
339 | cmdstring[4] = (tmp >> 0) & 0xff; | |
340 | cmdstring[5] = (tmp >> 8) & 0xff; | |
341 | ||
342 | if (send_begin(sdi) != SR_OK) | |
343 | return SR_ERR; | |
344 | ||
345 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, | |
346 | cmdstring, 8, &tmp, 100)) != 0) { | |
347 | sr_err("Failed to set sample rate: %s.", | |
348 | libusb_error_name(ret)); | |
349 | return SR_ERR; | |
350 | } | |
351 | sr_dbg("Sent CMD_2250_SET_SAMPLERATE."); | |
352 | ||
353 | ||
354 | /* Enabled channels: 00=CH1 01=CH2 10=both */ | |
355 | memset(cmdstring, 0, sizeof(cmdstring)); | |
356 | cmdstring[0] = CMD_2250_SET_CHANNELS; | |
357 | sr_dbg("Channels CH1=%d CH2=%d", devc->ch_enabled[0], devc->ch_enabled[1]); | |
358 | cmdstring[2] = (devc->ch_enabled[0] ? 0 : 1) + (devc->ch_enabled[1] ? 2 : 0); | |
359 | ||
360 | if (send_begin(sdi) != SR_OK) | |
361 | return SR_ERR; | |
362 | ||
363 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, | |
364 | cmdstring, 4, &tmp, 100)) != 0) { | |
365 | sr_err("Failed to set channels: %s.", | |
366 | libusb_error_name(ret)); | |
367 | return SR_ERR; | |
368 | } | |
369 | sr_dbg("Sent CMD_2250_SET_CHANNELS."); | |
370 | ||
371 | ||
372 | ||
373 | /* Trigger slope: 0=positive 1=negative */ | |
374 | memset(cmdstring, 0, sizeof(cmdstring)); | |
375 | cmdstring[0] = CMD_2250_SET_TRIGGERPOS_AND_BUFFER; | |
376 | ||
377 | /* TODO for big buffer */ | |
378 | /* TODO */ | |
379 | sr_dbg("Trigger position: %3.2f.", devc->triggerposition); | |
380 | // tmp = 0x77fff + 0x8000 * devc->triggerposition; | |
381 | // cmdstring[6] = tmp & 0xff; | |
382 | // cmdstring[7] = (tmp >> 8) & 0xff; | |
383 | // cmdstring[10] = (tmp >> 16) & 0xff; | |
384 | ||
385 | cmdstring[2]=0xff; | |
386 | cmdstring[3]=0xff; | |
387 | cmdstring[4]=0x07; | |
388 | ||
389 | cmdstring[6]=0xff; | |
390 | cmdstring[7]=0xd7; | |
391 | cmdstring[8]=0x07; | |
392 | ||
393 | if (send_begin(sdi) != SR_OK) | |
394 | return SR_ERR; | |
395 | ||
396 | /* TODO: 12 bytes according to documentation? */ | |
397 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, | |
398 | cmdstring, 10, &tmp, 100)) != 0) { | |
399 | sr_err("Failed to set trigger position: %s.", | |
400 | libusb_error_name(ret)); | |
401 | return SR_ERR; | |
402 | } | |
403 | ||
404 | return SR_OK; | |
405 | } | |
406 | ||
d87c1766 | 407 | static int dso_set_trigger_samplerate(const struct sr_dev_inst *sdi) |
3b533202 | 408 | { |
c118080b BV |
409 | struct dev_context *devc; |
410 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
411 | int ret, tmp; |
412 | uint8_t cmdstring[12]; | |
3b533202 | 413 | uint16_t timebase_small[] = { 0xffff, 0xfffc, 0xfff7, 0xffe8, 0xffce, |
e98b7f1b | 414 | 0xff9c, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79, 0xd8f1 }; |
3b533202 | 415 | uint16_t timebase_large[] = { 0xffff, 0x0000, 0xfffc, 0xfff7, 0xffe8, |
e98b7f1b | 416 | 0xffce, 0xff9d, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79 }; |
3b533202 | 417 | |
87f56d01 PM |
418 | devc = sdi->priv; |
419 | if (devc->profile->fw_pid == 0x2250) | |
420 | return dso2250_set_trigger_samplerate(sdi); | |
421 | ||
e98b7f1b | 422 | sr_dbg("Preparing CMD_SET_TRIGGER_SAMPLERATE."); |
3b533202 | 423 | |
c118080b BV |
424 | usb = sdi->conn; |
425 | ||
3b533202 BV |
426 | memset(cmdstring, 0, sizeof(cmdstring)); |
427 | /* Command */ | |
428 | cmdstring[0] = CMD_SET_TRIGGER_SAMPLERATE; | |
429 | ||
430 | /* Trigger source */ | |
e98b7f1b | 431 | sr_dbg("Trigger source %s.", devc->triggersource); |
269971dd | 432 | if (!strcmp("CH2", devc->triggersource)) |
a370ef19 | 433 | tmp = 0; |
269971dd | 434 | else if (!strcmp("CH1", devc->triggersource)) |
a370ef19 | 435 | tmp = 1; |
269971dd | 436 | else if (!strcmp("EXT", devc->triggersource)) |
a370ef19 BV |
437 | tmp = 2; |
438 | else { | |
e98b7f1b | 439 | sr_err("Invalid trigger source: '%s'.", devc->triggersource); |
a370ef19 BV |
440 | return SR_ERR_ARG; |
441 | } | |
442 | cmdstring[2] = tmp; | |
3b533202 BV |
443 | |
444 | /* Frame size */ | |
e98b7f1b | 445 | sr_dbg("Frame size: %d.", devc->framesize); |
269971dd | 446 | cmdstring[2] |= (devc->framesize == FRAMESIZE_SMALL ? 0x01 : 0x02) << 2; |
bc79e906 BV |
447 | |
448 | /* Timebase fast */ | |
e98b7f1b | 449 | sr_dbg("Time base index: %d.", devc->timebase); |
034accb5 | 450 | if (devc->framesize == FRAMESIZE_SMALL) { |
269971dd | 451 | if (devc->timebase < TIME_20us) |
bc79e906 | 452 | tmp = 0; |
269971dd | 453 | else if (devc->timebase == TIME_20us) |
bc79e906 | 454 | tmp = 1; |
269971dd | 455 | else if (devc->timebase == TIME_40us) |
bc79e906 | 456 | tmp = 2; |
269971dd | 457 | else if (devc->timebase == TIME_100us) |
bc79e906 | 458 | tmp = 3; |
269971dd | 459 | else if (devc->timebase >= TIME_200us) |
bc79e906 | 460 | tmp = 4; |
034accb5 | 461 | } else { |
269971dd | 462 | if (devc->timebase < TIME_40us) { |
e98b7f1b | 463 | sr_err("Timebase < 40us only supported with 10K buffer."); |
bc79e906 BV |
464 | return SR_ERR_ARG; |
465 | } | |
269971dd | 466 | else if (devc->timebase == TIME_40us) |
bc79e906 | 467 | tmp = 0; |
269971dd | 468 | else if (devc->timebase == TIME_100us) |
bc79e906 | 469 | tmp = 2; |
269971dd | 470 | else if (devc->timebase == TIME_200us) |
bc79e906 | 471 | tmp = 3; |
269971dd | 472 | else if (devc->timebase >= TIME_400us) |
bc79e906 | 473 | tmp = 4; |
3b533202 | 474 | } |
bc79e906 BV |
475 | cmdstring[2] |= (tmp & 0x07) << 5; |
476 | ||
477 | /* Enabled channels: 00=CH1 01=CH2 10=both */ | |
417412c8 AJ |
478 | sr_dbg("Channels CH1=%d CH2=%d", devc->ch_enabled[0], devc->ch_enabled[1]); |
479 | tmp = (((devc->ch_enabled[1] ? 1 : 0) << 1) + (devc->ch_enabled[0] ? 1 : 0)) - 1; | |
6e71ef3b | 480 | cmdstring[3] = tmp; |
3b533202 | 481 | |
bc79e906 | 482 | /* Fast rates channel */ |
e98b7f1b | 483 | /* TODO: Is this right? */ |
269971dd | 484 | tmp = devc->timebase < TIME_10us ? 1 : 0; |
bc79e906 | 485 | cmdstring[3] |= tmp << 2; |
3b533202 | 486 | |
bc79e906 | 487 | /* Trigger slope: 0=positive 1=negative */ |
e98b7f1b UH |
488 | /* TODO: Does this work? */ |
489 | sr_dbg("Trigger slope: %d.", devc->triggerslope); | |
269971dd | 490 | cmdstring[3] |= (devc->triggerslope == SLOPE_NEGATIVE ? 1 : 0) << 3; |
3b533202 | 491 | |
a370ef19 | 492 | /* Timebase slow */ |
269971dd | 493 | if (devc->timebase < TIME_100us) |
3b533202 | 494 | tmp = 0; |
269971dd | 495 | else if (devc->timebase > TIME_400ms) |
3b533202 BV |
496 | tmp = 0xffed; |
497 | else { | |
269971dd BV |
498 | if (devc->framesize == FRAMESIZE_SMALL) |
499 | tmp = timebase_small[devc->timebase - 3]; | |
3b533202 | 500 | else |
269971dd | 501 | tmp = timebase_large[devc->timebase - 3]; |
3b533202 | 502 | } |
bc79e906 BV |
503 | cmdstring[4] = tmp & 0xff; |
504 | cmdstring[5] = (tmp >> 8) & 0xff; | |
505 | ||
506 | /* Horizontal trigger position */ | |
e98b7f1b | 507 | sr_dbg("Trigger position: %3.2f.", devc->triggerposition); |
269971dd | 508 | tmp = 0x77fff + 0x8000 * devc->triggerposition; |
3b533202 BV |
509 | cmdstring[6] = tmp & 0xff; |
510 | cmdstring[7] = (tmp >> 8) & 0xff; | |
3b533202 BV |
511 | cmdstring[10] = (tmp >> 16) & 0xff; |
512 | ||
c118080b | 513 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
514 | return SR_ERR; |
515 | ||
c118080b BV |
516 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
517 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
d4928d71 PS |
518 | sr_err("Failed to set trigger/samplerate: %s.", |
519 | libusb_error_name(ret)); | |
3b533202 BV |
520 | return SR_ERR; |
521 | } | |
e98b7f1b | 522 | sr_dbg("Sent CMD_SET_TRIGGER_SAMPLERATE."); |
3b533202 BV |
523 | |
524 | return SR_OK; | |
525 | } | |
526 | ||
87f56d01 | 527 | |
d87c1766 | 528 | static int dso_set_filters(const struct sr_dev_inst *sdi) |
3b533202 | 529 | { |
c118080b BV |
530 | struct dev_context *devc; |
531 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
532 | int ret, tmp; |
533 | uint8_t cmdstring[8]; | |
534 | ||
e98b7f1b | 535 | sr_dbg("Preparing CMD_SET_FILTERS."); |
3b533202 | 536 | |
c118080b BV |
537 | devc = sdi->priv; |
538 | usb = sdi->conn; | |
539 | ||
3b533202 BV |
540 | memset(cmdstring, 0, sizeof(cmdstring)); |
541 | cmdstring[0] = CMD_SET_FILTERS; | |
542 | cmdstring[1] = 0x0f; | |
933defaa | 543 | if (devc->filter[0]) { |
e98b7f1b | 544 | sr_dbg("Turning on CH1 filter."); |
3b533202 | 545 | cmdstring[2] |= 0x80; |
ebb781a6 | 546 | } |
933defaa | 547 | if (devc->filter[1]) { |
e98b7f1b | 548 | sr_dbg("Turning on CH2 filter."); |
3b533202 | 549 | cmdstring[2] |= 0x40; |
ebb781a6 | 550 | } |
933defaa BV |
551 | /* |
552 | * Not supported: filtering on the trigger | |
553 | * cmdstring[2] |= 0x20; | |
554 | */ | |
3b533202 | 555 | |
c118080b | 556 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
557 | return SR_ERR; |
558 | ||
c118080b BV |
559 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
560 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 561 | sr_err("Failed to set filters: %s.", libusb_error_name(ret)); |
3b533202 BV |
562 | return SR_ERR; |
563 | } | |
e98b7f1b | 564 | sr_dbg("Sent CMD_SET_FILTERS."); |
3b533202 BV |
565 | |
566 | return SR_OK; | |
567 | } | |
568 | ||
d87c1766 | 569 | static int dso_set_voltage(const struct sr_dev_inst *sdi) |
3b533202 | 570 | { |
c118080b BV |
571 | struct dev_context *devc; |
572 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
573 | int ret, tmp; |
574 | uint8_t cmdstring[8]; | |
575 | ||
e98b7f1b | 576 | sr_dbg("Preparing CMD_SET_VOLTAGE."); |
3b533202 | 577 | |
c118080b BV |
578 | devc = sdi->priv; |
579 | usb = sdi->conn; | |
580 | ||
3b533202 BV |
581 | memset(cmdstring, 0, sizeof(cmdstring)); |
582 | cmdstring[0] = CMD_SET_VOLTAGE; | |
87f56d01 PM |
583 | |
584 | if (devc->profile->fw_pid == 0x2250) { | |
585 | cmdstring[2] = 0x08; | |
586 | } else { | |
587 | cmdstring[1] = 0x0f; | |
588 | cmdstring[2] = 0x30; | |
589 | } | |
313deed2 BV |
590 | |
591 | /* CH1 volts/div is encoded in bits 0-1 */ | |
933defaa BV |
592 | sr_dbg("CH1 vdiv index: %d.", devc->voltage[0]); |
593 | switch (devc->voltage[0]) { | |
313deed2 BV |
594 | case VDIV_1V: |
595 | case VDIV_100MV: | |
596 | case VDIV_10MV: | |
597 | cmdstring[2] |= 0x00; | |
598 | break; | |
599 | case VDIV_2V: | |
600 | case VDIV_200MV: | |
601 | case VDIV_20MV: | |
602 | cmdstring[2] |= 0x01; | |
603 | break; | |
604 | case VDIV_5V: | |
605 | case VDIV_500MV: | |
606 | case VDIV_50MV: | |
607 | cmdstring[2] |= 0x02; | |
608 | break; | |
609 | } | |
610 | ||
611 | /* CH2 volts/div is encoded in bits 2-3 */ | |
933defaa BV |
612 | sr_dbg("CH2 vdiv index: %d.", devc->voltage[1]); |
613 | switch (devc->voltage[1]) { | |
313deed2 BV |
614 | case VDIV_1V: |
615 | case VDIV_100MV: | |
616 | case VDIV_10MV: | |
617 | cmdstring[2] |= 0x00; | |
618 | break; | |
619 | case VDIV_2V: | |
620 | case VDIV_200MV: | |
621 | case VDIV_20MV: | |
1d97091e | 622 | cmdstring[2] |= 0x04; |
313deed2 BV |
623 | break; |
624 | case VDIV_5V: | |
625 | case VDIV_500MV: | |
626 | case VDIV_50MV: | |
1d97091e | 627 | cmdstring[2] |= 0x08; |
313deed2 BV |
628 | break; |
629 | } | |
3b533202 | 630 | |
c118080b | 631 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
632 | return SR_ERR; |
633 | ||
c118080b BV |
634 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
635 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 636 | sr_err("Failed to set voltage: %s.", libusb_error_name(ret)); |
3b533202 BV |
637 | return SR_ERR; |
638 | } | |
e98b7f1b | 639 | sr_dbg("Sent CMD_SET_VOLTAGE."); |
3b533202 BV |
640 | |
641 | return SR_OK; | |
642 | } | |
643 | ||
d87c1766 | 644 | static int dso_set_relays(const struct sr_dev_inst *sdi) |
3b533202 | 645 | { |
c118080b BV |
646 | struct dev_context *devc; |
647 | struct sr_usb_dev_inst *usb; | |
a217bcdf BV |
648 | GString *gs; |
649 | int ret, i; | |
650 | uint8_t relays[17] = { 0x00, 0x04, 0x08, 0x02, 0x20, 0x40, 0x10, 0x01, | |
3b533202 BV |
651 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
652 | ||
e98b7f1b | 653 | sr_dbg("Preparing CTRL_SETRELAYS."); |
3b533202 | 654 | |
c118080b BV |
655 | devc = sdi->priv; |
656 | usb = sdi->conn; | |
657 | ||
933defaa | 658 | if (devc->voltage[0] < VDIV_1V) |
3b533202 BV |
659 | relays[1] = ~relays[1]; |
660 | ||
933defaa | 661 | if (devc->voltage[0] < VDIV_100MV) |
3b533202 BV |
662 | relays[2] = ~relays[2]; |
663 | ||
933defaa BV |
664 | sr_dbg("CH1 coupling: %d.", devc->coupling[0]); |
665 | if (devc->coupling[0] != COUPLING_AC) | |
3b533202 BV |
666 | relays[3] = ~relays[3]; |
667 | ||
933defaa | 668 | if (devc->voltage[1] < VDIV_1V) |
3b533202 BV |
669 | relays[4] = ~relays[4]; |
670 | ||
933defaa | 671 | if (devc->voltage[1] < VDIV_100MV) |
3b533202 BV |
672 | relays[5] = ~relays[5]; |
673 | ||
933defaa BV |
674 | sr_dbg("CH2 coupling: %d.", devc->coupling[1]); |
675 | if (devc->coupling[1] != COUPLING_AC) | |
3b533202 BV |
676 | relays[6] = ~relays[6]; |
677 | ||
269971dd | 678 | if (!strcmp(devc->triggersource, "EXT")) |
3b533202 BV |
679 | relays[7] = ~relays[7]; |
680 | ||
a217bcdf BV |
681 | if (sr_log_loglevel_get() >= SR_LOG_DBG) { |
682 | gs = g_string_sized_new(128); | |
e98b7f1b | 683 | g_string_printf(gs, "Relays:"); |
a217bcdf BV |
684 | for (i = 0; i < 17; i++) |
685 | g_string_append_printf(gs, " %.2x", relays[i]); | |
cbc6f3b2 | 686 | sr_dbg("%s", gs->str); |
a217bcdf BV |
687 | g_string_free(gs, TRUE); |
688 | } | |
689 | ||
c118080b | 690 | if ((ret = libusb_control_transfer(usb->devhdl, |
3b533202 | 691 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_SETRELAYS, |
a217bcdf | 692 | 0, 0, relays, 17, 100)) != sizeof(relays)) { |
1740429d | 693 | sr_err("Failed to set relays: %s.", libusb_error_name(ret)); |
3b533202 BV |
694 | return SR_ERR; |
695 | } | |
e98b7f1b | 696 | sr_dbg("Sent CTRL_SETRELAYS."); |
3b533202 BV |
697 | |
698 | return SR_OK; | |
699 | } | |
700 | ||
d87c1766 | 701 | static int dso_set_voffsets(const struct sr_dev_inst *sdi) |
3b533202 | 702 | { |
c118080b BV |
703 | struct dev_context *devc; |
704 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
705 | int offset, ret; |
706 | uint16_t *ch_levels; | |
2715c0b8 BV |
707 | uint8_t offsets[17]; |
708 | ||
e98b7f1b | 709 | sr_dbg("Preparing CTRL_SETOFFSET."); |
2715c0b8 | 710 | |
c118080b BV |
711 | devc = sdi->priv; |
712 | usb = sdi->conn; | |
713 | ||
2715c0b8 BV |
714 | memset(offsets, 0, sizeof(offsets)); |
715 | /* Channel 1 */ | |
933defaa | 716 | ch_levels = devc->channel_levels[0][devc->voltage[0]]; |
269971dd | 717 | offset = (ch_levels[1] - ch_levels[0]) * devc->voffset_ch1 + ch_levels[0]; |
2715c0b8 BV |
718 | offsets[0] = (offset >> 8) | 0x20; |
719 | offsets[1] = offset & 0xff; | |
e98b7f1b UH |
720 | sr_dbg("CH1 offset: %3.2f (%.2x%.2x).", devc->voffset_ch1, |
721 | offsets[0], offsets[1]); | |
2715c0b8 BV |
722 | |
723 | /* Channel 2 */ | |
933defaa | 724 | ch_levels = devc->channel_levels[1][devc->voltage[1]]; |
269971dd | 725 | offset = (ch_levels[1] - ch_levels[0]) * devc->voffset_ch2 + ch_levels[0]; |
2715c0b8 BV |
726 | offsets[2] = (offset >> 8) | 0x20; |
727 | offsets[3] = offset & 0xff; | |
e98b7f1b UH |
728 | sr_dbg("CH2 offset: %3.2f (%.2x%.2x).", devc->voffset_ch2, |
729 | offsets[2], offsets[3]); | |
2715c0b8 BV |
730 | |
731 | /* Trigger */ | |
269971dd | 732 | offset = MAX_VERT_TRIGGER * devc->voffset_trigger; |
2715c0b8 BV |
733 | offsets[4] = (offset >> 8) | 0x20; |
734 | offsets[5] = offset & 0xff; | |
e98b7f1b | 735 | sr_dbg("Trigger offset: %3.2f (%.2x%.2x).", devc->voffset_trigger, |
2715c0b8 | 736 | offsets[4], offsets[5]); |
3b533202 | 737 | |
c118080b | 738 | if ((ret = libusb_control_transfer(usb->devhdl, |
3b533202 BV |
739 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_SETOFFSET, |
740 | 0, 0, offsets, sizeof(offsets), 100)) != sizeof(offsets)) { | |
1740429d | 741 | sr_err("Failed to set offsets: %s.", libusb_error_name(ret)); |
3b533202 BV |
742 | return SR_ERR; |
743 | } | |
e98b7f1b | 744 | sr_dbg("Sent CTRL_SETOFFSET."); |
3b533202 BV |
745 | |
746 | return SR_OK; | |
747 | } | |
748 | ||
c118080b | 749 | SR_PRIV int dso_enable_trigger(const struct sr_dev_inst *sdi) |
3b533202 | 750 | { |
c118080b | 751 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
752 | int ret, tmp; |
753 | uint8_t cmdstring[2]; | |
754 | ||
e98b7f1b | 755 | sr_dbg("Sending CMD_ENABLE_TRIGGER."); |
3b533202 | 756 | |
c118080b BV |
757 | usb = sdi->conn; |
758 | ||
3b533202 BV |
759 | memset(cmdstring, 0, sizeof(cmdstring)); |
760 | cmdstring[0] = CMD_ENABLE_TRIGGER; | |
761 | cmdstring[1] = 0x00; | |
762 | ||
c118080b | 763 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
764 | return SR_ERR; |
765 | ||
c118080b BV |
766 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
767 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 768 | sr_err("Failed to enable trigger: %s.", libusb_error_name(ret)); |
3b533202 BV |
769 | return SR_ERR; |
770 | } | |
771 | ||
772 | return SR_OK; | |
773 | } | |
774 | ||
c118080b | 775 | SR_PRIV int dso_force_trigger(const struct sr_dev_inst *sdi) |
3b533202 | 776 | { |
c118080b | 777 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
778 | int ret, tmp; |
779 | uint8_t cmdstring[2]; | |
780 | ||
e98b7f1b | 781 | sr_dbg("Sending CMD_FORCE_TRIGGER."); |
3b533202 | 782 | |
c118080b BV |
783 | usb = sdi->conn; |
784 | ||
3b533202 BV |
785 | memset(cmdstring, 0, sizeof(cmdstring)); |
786 | cmdstring[0] = CMD_FORCE_TRIGGER; | |
787 | cmdstring[1] = 0x00; | |
788 | ||
c118080b | 789 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
790 | return SR_ERR; |
791 | ||
c118080b BV |
792 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
793 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 794 | sr_err("Failed to force trigger: %s.", libusb_error_name(ret)); |
3b533202 BV |
795 | return SR_ERR; |
796 | } | |
797 | ||
798 | return SR_OK; | |
799 | } | |
800 | ||
c118080b | 801 | SR_PRIV int dso_init(const struct sr_dev_inst *sdi) |
3b533202 BV |
802 | { |
803 | ||
e98b7f1b | 804 | sr_dbg("Initializing DSO."); |
3b533202 | 805 | |
c118080b | 806 | if (get_channel_offsets(sdi) != SR_OK) |
3b533202 BV |
807 | return SR_ERR; |
808 | ||
c118080b | 809 | if (dso_set_trigger_samplerate(sdi) != SR_OK) |
3b533202 BV |
810 | return SR_ERR; |
811 | ||
c118080b | 812 | if (dso_set_filters(sdi) != SR_OK) |
3b533202 BV |
813 | return SR_ERR; |
814 | ||
c118080b | 815 | if (dso_set_voltage(sdi) != SR_OK) |
3b533202 BV |
816 | return SR_ERR; |
817 | ||
c118080b | 818 | if (dso_set_relays(sdi) != SR_OK) |
3b533202 BV |
819 | return SR_ERR; |
820 | ||
c118080b | 821 | if (dso_set_voffsets(sdi) != SR_OK) |
3b533202 BV |
822 | return SR_ERR; |
823 | ||
c118080b | 824 | if (dso_enable_trigger(sdi) != SR_OK) |
3b533202 BV |
825 | return SR_ERR; |
826 | ||
3b533202 BV |
827 | return SR_OK; |
828 | } | |
829 | ||
c118080b BV |
830 | SR_PRIV int dso_get_capturestate(const struct sr_dev_inst *sdi, |
831 | uint8_t *capturestate, uint32_t *trigger_offset) | |
3b533202 | 832 | { |
c118080b | 833 | struct sr_usb_dev_inst *usb; |
e05a174b BV |
834 | int ret, tmp, i; |
835 | unsigned int bitvalue, toff; | |
3b533202 BV |
836 | uint8_t cmdstring[2], inbuf[512]; |
837 | ||
e98b7f1b | 838 | sr_dbg("Sending CMD_GET_CAPTURESTATE."); |
3b533202 | 839 | |
c118080b BV |
840 | usb = sdi->conn; |
841 | ||
3b533202 BV |
842 | cmdstring[0] = CMD_GET_CAPTURESTATE; |
843 | cmdstring[1] = 0; | |
844 | ||
c118080b | 845 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
846 | sr_dbg("Failed to send get_capturestate command: %s.", |
847 | libusb_error_name(ret)); | |
6e6eeff4 | 848 | return SR_ERR; |
3b533202 BV |
849 | } |
850 | ||
c118080b | 851 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_IN, |
3b533202 | 852 | inbuf, 512, &tmp, 100)) != 0) { |
d4928d71 PS |
853 | sr_dbg("Failed to get capturestate: %s.", |
854 | libusb_error_name(ret)); | |
6e6eeff4 | 855 | return SR_ERR; |
3b533202 | 856 | } |
6e6eeff4 | 857 | *capturestate = inbuf[0]; |
e05a174b BV |
858 | toff = (inbuf[1] << 16) | (inbuf[3] << 8) | inbuf[2]; |
859 | ||
e98b7f1b UH |
860 | /* |
861 | * This conversion comes from the openhantek project. | |
e05a174b BV |
862 | * Each set bit in the 24-bit value inverts all bits with a lower |
863 | * value. No idea why the device reports the trigger point this way. | |
864 | */ | |
865 | bitvalue = 1; | |
866 | for (i = 0; i < 24; i++) { | |
e749a8cb | 867 | /* Each set bit inverts all bits with a lower value. */ |
0c5f2abc | 868 | if (toff & bitvalue) |
e05a174b BV |
869 | toff ^= bitvalue - 1; |
870 | bitvalue <<= 1; | |
871 | } | |
872 | *trigger_offset = toff; | |
3b533202 | 873 | |
6e6eeff4 | 874 | return SR_OK; |
3b533202 BV |
875 | } |
876 | ||
c118080b | 877 | SR_PRIV int dso_capture_start(const struct sr_dev_inst *sdi) |
3b533202 BV |
878 | { |
879 | int ret; | |
880 | uint8_t cmdstring[2]; | |
881 | ||
e98b7f1b | 882 | sr_dbg("Sending CMD_CAPTURE_START."); |
3b533202 BV |
883 | |
884 | cmdstring[0] = CMD_CAPTURE_START; | |
885 | cmdstring[1] = 0; | |
886 | ||
c118080b | 887 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
888 | sr_err("Failed to send capture_start command: %s.", |
889 | libusb_error_name(ret)); | |
3b533202 BV |
890 | return SR_ERR; |
891 | } | |
892 | ||
893 | return SR_OK; | |
894 | } | |
895 | ||
69e19dd7 BV |
896 | SR_PRIV int dso_get_channeldata(const struct sr_dev_inst *sdi, |
897 | libusb_transfer_cb_fn cb) | |
3b533202 | 898 | { |
69e19dd7 | 899 | struct dev_context *devc; |
c118080b | 900 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
901 | struct libusb_transfer *transfer; |
902 | int num_transfers, ret, i; | |
903 | uint8_t cmdstring[2]; | |
904 | unsigned char *buf; | |
905 | ||
e98b7f1b | 906 | sr_dbg("Sending CMD_GET_CHANNELDATA."); |
3b533202 | 907 | |
c118080b BV |
908 | devc = sdi->priv; |
909 | usb = sdi->conn; | |
910 | ||
3b533202 BV |
911 | cmdstring[0] = CMD_GET_CHANNELDATA; |
912 | cmdstring[1] = 0; | |
913 | ||
c118080b | 914 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
915 | sr_err("Failed to get channel data: %s.", |
916 | libusb_error_name(ret)); | |
3b533202 BV |
917 | return SR_ERR; |
918 | } | |
919 | ||
e98b7f1b UH |
920 | /* TODO: DSO-2xxx only. */ |
921 | num_transfers = devc->framesize * | |
922 | sizeof(unsigned short) / devc->epin_maxpacketsize; | |
923 | sr_dbg("Queueing up %d transfers.", num_transfers); | |
3b533202 | 924 | for (i = 0; i < num_transfers; i++) { |
269971dd | 925 | if (!(buf = g_try_malloc(devc->epin_maxpacketsize))) { |
e98b7f1b | 926 | sr_err("Failed to malloc USB endpoint buffer."); |
3b533202 BV |
927 | return SR_ERR_MALLOC; |
928 | } | |
929 | transfer = libusb_alloc_transfer(0); | |
c118080b | 930 | libusb_fill_bulk_transfer(transfer, usb->devhdl, DSO_EP_IN, buf, |
69e19dd7 | 931 | devc->epin_maxpacketsize, cb, (void *)sdi, 40); |
3b533202 | 932 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
d4928d71 PS |
933 | sr_err("Failed to submit transfer: %s.", |
934 | libusb_error_name(ret)); | |
3b533202 BV |
935 | /* TODO: Free them all. */ |
936 | libusb_free_transfer(transfer); | |
937 | g_free(buf); | |
938 | return SR_ERR; | |
939 | } | |
940 | } | |
941 | ||
942 | return SR_OK; | |
943 | } |