]>
Commit | Line | Data |
---|---|---|
3b533202 BV |
1 | /* |
2 | * This file is part of the sigrok project. | |
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 | ||
45c59c8b BV |
22 | #include "libsigrok.h" |
23 | #include "libsigrok-internal.h" | |
3b533202 BV |
24 | #include "dso.h" |
25 | #include <string.h> | |
26 | #include <glib.h> | |
27 | #include <libusb.h> | |
28 | ||
f8c617cf | 29 | extern struct sr_dev_driver hantek_dso_driver_info; |
3b533202 | 30 | |
269971dd | 31 | static int send_begin(struct dev_context *devc) |
3b533202 BV |
32 | { |
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 | |
269971dd | 39 | if ((ret = libusb_control_transfer(devc->usb->devhdl, |
3b533202 BV |
40 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_BEGINCOMMAND, |
41 | 0, 0, buffer, sizeof(buffer), 200)) != sizeof(buffer)) { | |
d4928d71 PS |
42 | sr_err("Failed to send begincommand: %s.", |
43 | libusb_error_name(ret)); | |
3b533202 BV |
44 | return SR_ERR; |
45 | } | |
46 | ||
47 | return SR_OK; | |
48 | } | |
49 | ||
269971dd | 50 | static int send_bulkcmd(struct dev_context *devc, uint8_t *cmdstring, int cmdlen) |
3b533202 BV |
51 | { |
52 | int ret, tmp; | |
53 | ||
269971dd | 54 | if (send_begin(devc) != SR_OK) |
3b533202 BV |
55 | return SR_ERR; |
56 | ||
269971dd | 57 | if ((ret = libusb_bulk_transfer(devc->usb->devhdl, |
3b533202 BV |
58 | DSO_EP_OUT | LIBUSB_ENDPOINT_OUT, |
59 | cmdstring, cmdlen, &tmp, 200)) != 0) | |
60 | return SR_ERR; | |
61 | ||
62 | return SR_OK; | |
63 | } | |
64 | ||
65 | SR_PRIV int dso_getmps(libusb_device *dev) | |
66 | { | |
67 | struct libusb_device_descriptor des; | |
68 | struct libusb_config_descriptor *conf_dsc; | |
69 | const struct libusb_interface_descriptor *intf_dsc; | |
70 | int mps; | |
71 | ||
72 | if (libusb_get_device_descriptor(dev, &des) != 0) | |
73 | return 0; | |
74 | ||
75 | if (des.bNumConfigurations != 1) | |
76 | return 0; | |
77 | ||
78 | if (libusb_get_config_descriptor(dev, 0, &conf_dsc) != 0) | |
79 | return 0; | |
80 | ||
81 | mps = 0; | |
82 | intf_dsc = &(conf_dsc->interface[0].altsetting[0]); | |
83 | if (intf_dsc->bNumEndpoints != 2) | |
84 | goto err; | |
85 | ||
86 | if ((intf_dsc->endpoint[0].bEndpointAddress & 0x8f) != | |
87 | (2 | LIBUSB_ENDPOINT_OUT)) | |
88 | /* The first endpoint should be 2 (outbound). */ | |
89 | goto err; | |
90 | ||
91 | if ((intf_dsc->endpoint[1].bEndpointAddress & 0x8f) != | |
92 | (6 | LIBUSB_ENDPOINT_IN)) | |
93 | /* The second endpoint should be 6 (inbound). */ | |
94 | goto err; | |
95 | ||
96 | mps = intf_dsc->endpoint[1].wMaxPacketSize; | |
97 | ||
98 | err: | |
99 | if (conf_dsc) | |
100 | libusb_free_config_descriptor(conf_dsc); | |
101 | ||
102 | return mps; | |
103 | } | |
104 | ||
25a0f108 | 105 | SR_PRIV int dso_open(struct sr_dev_inst *sdi) |
3b533202 BV |
106 | { |
107 | libusb_device **devlist; | |
108 | struct libusb_device_descriptor des; | |
269971dd | 109 | struct dev_context *devc; |
d4abb463 | 110 | struct drv_context *drvc = hantek_dso_driver_info.priv; |
3b533202 BV |
111 | int err, skip, i; |
112 | ||
269971dd | 113 | devc = sdi->priv; |
3b533202 BV |
114 | |
115 | if (sdi->status == SR_ST_ACTIVE) | |
116 | /* already in use */ | |
117 | return SR_ERR; | |
118 | ||
119 | skip = 0; | |
d4abb463 | 120 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
3b533202 BV |
121 | for (i = 0; devlist[i]; i++) { |
122 | if ((err = libusb_get_device_descriptor(devlist[i], &des))) { | |
d4928d71 PS |
123 | sr_err("Failed to get device descriptor: %s.", |
124 | libusb_error_name(err)); | |
3b533202 BV |
125 | continue; |
126 | } | |
127 | ||
269971dd BV |
128 | if (des.idVendor != devc->profile->fw_vid |
129 | || des.idProduct != devc->profile->fw_pid) | |
3b533202 BV |
130 | continue; |
131 | ||
132 | if (sdi->status == SR_ST_INITIALIZING) { | |
25a0f108 | 133 | if (skip != sdi->index) { |
3b533202 BV |
134 | /* Skip devices of this type that aren't the one we want. */ |
135 | skip += 1; | |
136 | continue; | |
137 | } | |
138 | } else if (sdi->status == SR_ST_INACTIVE) { | |
139 | /* | |
140 | * This device is fully enumerated, so we need to find | |
141 | * this device by vendor, product, bus and address. | |
142 | */ | |
269971dd BV |
143 | if (libusb_get_bus_number(devlist[i]) != devc->usb->bus |
144 | || libusb_get_device_address(devlist[i]) != devc->usb->address) | |
3b533202 BV |
145 | /* this is not the one */ |
146 | continue; | |
147 | } | |
148 | ||
269971dd BV |
149 | if (!(err = libusb_open(devlist[i], &devc->usb->devhdl))) { |
150 | if (devc->usb->address == 0xff) | |
3b533202 BV |
151 | /* |
152 | * first time we touch this device after firmware upload, | |
153 | * so we don't know the address yet. | |
154 | */ | |
269971dd | 155 | devc->usb->address = libusb_get_device_address(devlist[i]); |
3b533202 | 156 | |
e98b7f1b UH |
157 | if (!(devc->epin_maxpacketsize = dso_getmps(devlist[i]))) |
158 | sr_err("Wrong endpoint profile."); | |
3b533202 BV |
159 | else { |
160 | sdi->status = SR_ST_ACTIVE; | |
e98b7f1b | 161 | sr_info("Opened device %d on %d.%d interface %d.", |
269971dd BV |
162 | sdi->index, devc->usb->bus, |
163 | devc->usb->address, USB_INTERFACE); | |
3b533202 BV |
164 | } |
165 | } else { | |
d4928d71 PS |
166 | sr_err("Failed to open device: %s.", |
167 | libusb_error_name(err)); | |
3b533202 BV |
168 | } |
169 | ||
e98b7f1b | 170 | /* If we made it here, we handled the device (somehow). */ |
3b533202 BV |
171 | break; |
172 | } | |
173 | libusb_free_device_list(devlist, 1); | |
174 | ||
175 | if (sdi->status != SR_ST_ACTIVE) | |
176 | return SR_ERR; | |
177 | ||
178 | return SR_OK; | |
179 | } | |
180 | ||
181 | SR_PRIV void dso_close(struct sr_dev_inst *sdi) | |
182 | { | |
269971dd | 183 | struct dev_context *devc; |
3b533202 | 184 | |
269971dd | 185 | devc = sdi->priv; |
3b533202 | 186 | |
269971dd | 187 | if (devc->usb->devhdl == NULL) |
3b533202 BV |
188 | return; |
189 | ||
e98b7f1b | 190 | sr_info("Closing device %d on %d.%d interface %d.", sdi->index, |
269971dd BV |
191 | devc->usb->bus, devc->usb->address, USB_INTERFACE); |
192 | libusb_release_interface(devc->usb->devhdl, USB_INTERFACE); | |
193 | libusb_close(devc->usb->devhdl); | |
194 | devc->usb->devhdl = NULL; | |
3b533202 BV |
195 | sdi->status = SR_ST_INACTIVE; |
196 | ||
197 | } | |
198 | ||
269971dd | 199 | static int get_channel_offsets(struct dev_context *devc) |
3b533202 | 200 | { |
2715c0b8 BV |
201 | GString *gs; |
202 | int chan, v, ret; | |
3b533202 | 203 | |
e98b7f1b | 204 | sr_dbg("Getting channel offsets."); |
3b533202 | 205 | |
269971dd | 206 | ret = libusb_control_transfer(devc->usb->devhdl, |
3b533202 BV |
207 | LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_VENDOR, |
208 | CTRL_READ_EEPROM, EEPROM_CHANNEL_OFFSETS, 0, | |
269971dd BV |
209 | (unsigned char *)&devc->channel_levels, |
210 | sizeof(devc->channel_levels), 200); | |
211 | if (ret != sizeof(devc->channel_levels)) { | |
d4928d71 PS |
212 | sr_err("Failed to get channel offsets: %s.", |
213 | libusb_error_name(ret)); | |
3b533202 BV |
214 | return SR_ERR; |
215 | } | |
216 | ||
2715c0b8 BV |
217 | /* Comes in as 16-bit numbers with the second byte always 0 on |
218 | * the DSO-2090. Guessing this is supposed to be big-endian, | |
219 | * since that's how voltage offsets are submitted back to the DSO. | |
220 | * Convert to host order now, so we can use them natively. | |
221 | */ | |
222 | for (chan = 0; chan < 2; chan++) { | |
223 | for (v = 0; v < 9; v++) { | |
e98b7f1b UH |
224 | devc->channel_levels[chan][v][0] = |
225 | g_ntohs(devc->channel_levels[chan][v][0]); | |
226 | devc->channel_levels[chan][v][1] = | |
227 | g_ntohs(devc->channel_levels[chan][v][1]); | |
2715c0b8 BV |
228 | } |
229 | } | |
230 | ||
231 | if (sr_log_loglevel_get() >= SR_LOG_DBG) { | |
232 | gs = g_string_sized_new(128); | |
233 | for (chan = 0; chan < 2; chan++) { | |
e98b7f1b | 234 | g_string_printf(gs, "CH%d:", chan + 1); |
2715c0b8 BV |
235 | for (v = 0; v < 9; v++) { |
236 | g_string_append_printf(gs, " %.4x-%.4x", | |
e98b7f1b UH |
237 | devc->channel_levels[chan][v][0], |
238 | devc->channel_levels[chan][v][1]); | |
2715c0b8 | 239 | } |
cbc6f3b2 | 240 | sr_dbg("%s", gs->str); |
2715c0b8 BV |
241 | } |
242 | g_string_free(gs, TRUE); | |
243 | } | |
244 | ||
3b533202 BV |
245 | return SR_OK; |
246 | } | |
247 | ||
269971dd | 248 | SR_PRIV int dso_set_trigger_samplerate(struct dev_context *devc) |
3b533202 BV |
249 | { |
250 | int ret, tmp; | |
251 | uint8_t cmdstring[12]; | |
3b533202 | 252 | uint16_t timebase_small[] = { 0xffff, 0xfffc, 0xfff7, 0xffe8, 0xffce, |
e98b7f1b | 253 | 0xff9c, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79, 0xd8f1 }; |
3b533202 | 254 | uint16_t timebase_large[] = { 0xffff, 0x0000, 0xfffc, 0xfff7, 0xffe8, |
e98b7f1b | 255 | 0xffce, 0xff9d, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79 }; |
3b533202 | 256 | |
e98b7f1b | 257 | sr_dbg("Preparing CMD_SET_TRIGGER_SAMPLERATE."); |
3b533202 BV |
258 | |
259 | memset(cmdstring, 0, sizeof(cmdstring)); | |
260 | /* Command */ | |
261 | cmdstring[0] = CMD_SET_TRIGGER_SAMPLERATE; | |
262 | ||
263 | /* Trigger source */ | |
e98b7f1b | 264 | sr_dbg("Trigger source %s.", devc->triggersource); |
269971dd | 265 | if (!strcmp("CH2", devc->triggersource)) |
a370ef19 | 266 | tmp = 0; |
269971dd | 267 | else if (!strcmp("CH1", devc->triggersource)) |
a370ef19 | 268 | tmp = 1; |
269971dd | 269 | else if (!strcmp("EXT", devc->triggersource)) |
a370ef19 BV |
270 | tmp = 2; |
271 | else { | |
e98b7f1b | 272 | sr_err("Invalid trigger source: '%s'.", devc->triggersource); |
a370ef19 BV |
273 | return SR_ERR_ARG; |
274 | } | |
275 | cmdstring[2] = tmp; | |
3b533202 BV |
276 | |
277 | /* Frame size */ | |
e98b7f1b | 278 | sr_dbg("Frame size: %d.", devc->framesize); |
269971dd | 279 | cmdstring[2] |= (devc->framesize == FRAMESIZE_SMALL ? 0x01 : 0x02) << 2; |
bc79e906 BV |
280 | |
281 | /* Timebase fast */ | |
e98b7f1b | 282 | sr_dbg("Time base index: %d.", devc->timebase); |
034accb5 | 283 | if (devc->framesize == FRAMESIZE_SMALL) { |
269971dd | 284 | if (devc->timebase < TIME_20us) |
bc79e906 | 285 | tmp = 0; |
269971dd | 286 | else if (devc->timebase == TIME_20us) |
bc79e906 | 287 | tmp = 1; |
269971dd | 288 | else if (devc->timebase == TIME_40us) |
bc79e906 | 289 | tmp = 2; |
269971dd | 290 | else if (devc->timebase == TIME_100us) |
bc79e906 | 291 | tmp = 3; |
269971dd | 292 | else if (devc->timebase >= TIME_200us) |
bc79e906 | 293 | tmp = 4; |
034accb5 | 294 | } else { |
269971dd | 295 | if (devc->timebase < TIME_40us) { |
e98b7f1b | 296 | sr_err("Timebase < 40us only supported with 10K buffer."); |
bc79e906 BV |
297 | return SR_ERR_ARG; |
298 | } | |
269971dd | 299 | else if (devc->timebase == TIME_40us) |
bc79e906 | 300 | tmp = 0; |
269971dd | 301 | else if (devc->timebase == TIME_100us) |
bc79e906 | 302 | tmp = 2; |
269971dd | 303 | else if (devc->timebase == TIME_200us) |
bc79e906 | 304 | tmp = 3; |
269971dd | 305 | else if (devc->timebase >= TIME_400us) |
bc79e906 | 306 | tmp = 4; |
3b533202 | 307 | } |
bc79e906 BV |
308 | cmdstring[2] |= (tmp & 0x07) << 5; |
309 | ||
310 | /* Enabled channels: 00=CH1 01=CH2 10=both */ | |
e98b7f1b | 311 | sr_dbg("Channels CH1=%d CH2=%d", devc->ch1_enabled, devc->ch2_enabled); |
269971dd | 312 | tmp = (((devc->ch2_enabled ? 1 : 0) << 1) + (devc->ch1_enabled ? 1 : 0)) - 1; |
6e71ef3b | 313 | cmdstring[3] = tmp; |
3b533202 | 314 | |
bc79e906 | 315 | /* Fast rates channel */ |
e98b7f1b | 316 | /* TODO: Is this right? */ |
269971dd | 317 | tmp = devc->timebase < TIME_10us ? 1 : 0; |
bc79e906 | 318 | cmdstring[3] |= tmp << 2; |
3b533202 | 319 | |
bc79e906 | 320 | /* Trigger slope: 0=positive 1=negative */ |
e98b7f1b UH |
321 | /* TODO: Does this work? */ |
322 | sr_dbg("Trigger slope: %d.", devc->triggerslope); | |
269971dd | 323 | cmdstring[3] |= (devc->triggerslope == SLOPE_NEGATIVE ? 1 : 0) << 3; |
3b533202 | 324 | |
a370ef19 | 325 | /* Timebase slow */ |
269971dd | 326 | if (devc->timebase < TIME_100us) |
3b533202 | 327 | tmp = 0; |
269971dd | 328 | else if (devc->timebase > TIME_400ms) |
3b533202 BV |
329 | tmp = 0xffed; |
330 | else { | |
269971dd BV |
331 | if (devc->framesize == FRAMESIZE_SMALL) |
332 | tmp = timebase_small[devc->timebase - 3]; | |
3b533202 | 333 | else |
269971dd | 334 | tmp = timebase_large[devc->timebase - 3]; |
3b533202 | 335 | } |
bc79e906 BV |
336 | cmdstring[4] = tmp & 0xff; |
337 | cmdstring[5] = (tmp >> 8) & 0xff; | |
338 | ||
339 | /* Horizontal trigger position */ | |
e98b7f1b | 340 | sr_dbg("Trigger position: %3.2f.", devc->triggerposition); |
269971dd | 341 | tmp = 0x77fff + 0x8000 * devc->triggerposition; |
3b533202 BV |
342 | cmdstring[6] = tmp & 0xff; |
343 | cmdstring[7] = (tmp >> 8) & 0xff; | |
3b533202 BV |
344 | cmdstring[10] = (tmp >> 16) & 0xff; |
345 | ||
269971dd | 346 | if (send_begin(devc) != SR_OK) |
3b533202 BV |
347 | return SR_ERR; |
348 | ||
269971dd | 349 | if ((ret = libusb_bulk_transfer(devc->usb->devhdl, |
3b533202 BV |
350 | DSO_EP_OUT | LIBUSB_ENDPOINT_OUT, |
351 | cmdstring, sizeof(cmdstring), | |
352 | &tmp, 100)) != 0) { | |
d4928d71 PS |
353 | sr_err("Failed to set trigger/samplerate: %s.", |
354 | libusb_error_name(ret)); | |
3b533202 BV |
355 | return SR_ERR; |
356 | } | |
e98b7f1b | 357 | sr_dbg("Sent CMD_SET_TRIGGER_SAMPLERATE."); |
3b533202 BV |
358 | |
359 | return SR_OK; | |
360 | } | |
361 | ||
269971dd | 362 | SR_PRIV int dso_set_filters(struct dev_context *devc) |
3b533202 BV |
363 | { |
364 | int ret, tmp; | |
365 | uint8_t cmdstring[8]; | |
366 | ||
e98b7f1b | 367 | sr_dbg("Preparing CMD_SET_FILTERS."); |
3b533202 BV |
368 | |
369 | memset(cmdstring, 0, sizeof(cmdstring)); | |
370 | cmdstring[0] = CMD_SET_FILTERS; | |
371 | cmdstring[1] = 0x0f; | |
269971dd | 372 | if (devc->filter_ch1) { |
e98b7f1b | 373 | sr_dbg("Turning on CH1 filter."); |
3b533202 | 374 | cmdstring[2] |= 0x80; |
ebb781a6 | 375 | } |
269971dd | 376 | if (devc->filter_ch2) { |
e98b7f1b | 377 | sr_dbg("Turning on CH2 filter."); |
3b533202 | 378 | cmdstring[2] |= 0x40; |
ebb781a6 | 379 | } |
269971dd | 380 | if (devc->filter_trigger) { |
ebb781a6 | 381 | /* TODO: supported on the DSO-2090? */ |
e98b7f1b | 382 | sr_dbg("Turning on trigger filter."); |
3b533202 | 383 | cmdstring[2] |= 0x20; |
ebb781a6 | 384 | } |
3b533202 | 385 | |
269971dd | 386 | if (send_begin(devc) != SR_OK) |
3b533202 BV |
387 | return SR_ERR; |
388 | ||
269971dd | 389 | if ((ret = libusb_bulk_transfer(devc->usb->devhdl, |
3b533202 BV |
390 | DSO_EP_OUT | LIBUSB_ENDPOINT_OUT, |
391 | cmdstring, sizeof(cmdstring), | |
392 | &tmp, 100)) != 0) { | |
1740429d | 393 | sr_err("Failed to set filters: %s.", libusb_error_name(ret)); |
3b533202 BV |
394 | return SR_ERR; |
395 | } | |
e98b7f1b | 396 | sr_dbg("Sent CMD_SET_FILTERS."); |
3b533202 BV |
397 | |
398 | return SR_OK; | |
399 | } | |
400 | ||
269971dd | 401 | SR_PRIV int dso_set_voltage(struct dev_context *devc) |
3b533202 BV |
402 | { |
403 | int ret, tmp; | |
404 | uint8_t cmdstring[8]; | |
405 | ||
e98b7f1b | 406 | sr_dbg("Preparing CMD_SET_VOLTAGE."); |
3b533202 BV |
407 | |
408 | memset(cmdstring, 0, sizeof(cmdstring)); | |
409 | cmdstring[0] = CMD_SET_VOLTAGE; | |
410 | cmdstring[1] = 0x0f; | |
313deed2 BV |
411 | cmdstring[2] = 0x30; |
412 | ||
413 | /* CH1 volts/div is encoded in bits 0-1 */ | |
e98b7f1b | 414 | sr_dbg("CH1 vdiv index: %d.", devc->voltage_ch1); |
269971dd | 415 | switch (devc->voltage_ch1) { |
313deed2 BV |
416 | case VDIV_1V: |
417 | case VDIV_100MV: | |
418 | case VDIV_10MV: | |
419 | cmdstring[2] |= 0x00; | |
420 | break; | |
421 | case VDIV_2V: | |
422 | case VDIV_200MV: | |
423 | case VDIV_20MV: | |
424 | cmdstring[2] |= 0x01; | |
425 | break; | |
426 | case VDIV_5V: | |
427 | case VDIV_500MV: | |
428 | case VDIV_50MV: | |
429 | cmdstring[2] |= 0x02; | |
430 | break; | |
431 | } | |
432 | ||
433 | /* CH2 volts/div is encoded in bits 2-3 */ | |
e98b7f1b | 434 | sr_dbg("CH2 vdiv index: %d.", devc->voltage_ch2); |
269971dd | 435 | switch (devc->voltage_ch2) { |
313deed2 BV |
436 | case VDIV_1V: |
437 | case VDIV_100MV: | |
438 | case VDIV_10MV: | |
439 | cmdstring[2] |= 0x00; | |
440 | break; | |
441 | case VDIV_2V: | |
442 | case VDIV_200MV: | |
443 | case VDIV_20MV: | |
1d97091e | 444 | cmdstring[2] |= 0x04; |
313deed2 BV |
445 | break; |
446 | case VDIV_5V: | |
447 | case VDIV_500MV: | |
448 | case VDIV_50MV: | |
1d97091e | 449 | cmdstring[2] |= 0x08; |
313deed2 BV |
450 | break; |
451 | } | |
3b533202 | 452 | |
269971dd | 453 | if (send_begin(devc) != SR_OK) |
3b533202 BV |
454 | return SR_ERR; |
455 | ||
269971dd | 456 | if ((ret = libusb_bulk_transfer(devc->usb->devhdl, |
3b533202 BV |
457 | DSO_EP_OUT | LIBUSB_ENDPOINT_OUT, |
458 | cmdstring, sizeof(cmdstring), | |
459 | &tmp, 100)) != 0) { | |
1740429d | 460 | sr_err("Failed to set voltage: %s.", libusb_error_name(ret)); |
3b533202 BV |
461 | return SR_ERR; |
462 | } | |
e98b7f1b | 463 | sr_dbg("Sent CMD_SET_VOLTAGE."); |
3b533202 BV |
464 | |
465 | return SR_OK; | |
466 | } | |
467 | ||
269971dd | 468 | SR_PRIV int dso_set_relays(struct dev_context *devc) |
3b533202 | 469 | { |
a217bcdf BV |
470 | GString *gs; |
471 | int ret, i; | |
472 | uint8_t relays[17] = { 0x00, 0x04, 0x08, 0x02, 0x20, 0x40, 0x10, 0x01, | |
3b533202 BV |
473 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
474 | ||
e98b7f1b | 475 | sr_dbg("Preparing CTRL_SETRELAYS."); |
3b533202 | 476 | |
269971dd | 477 | if (devc->voltage_ch1 < VDIV_1V) |
3b533202 BV |
478 | relays[1] = ~relays[1]; |
479 | ||
269971dd | 480 | if (devc->voltage_ch1 < VDIV_100MV) |
3b533202 BV |
481 | relays[2] = ~relays[2]; |
482 | ||
e98b7f1b | 483 | sr_dbg("CH1 coupling: %d.", devc->coupling_ch1); |
269971dd | 484 | if (devc->coupling_ch1 != COUPLING_AC) |
3b533202 BV |
485 | relays[3] = ~relays[3]; |
486 | ||
269971dd | 487 | if (devc->voltage_ch2 < VDIV_1V) |
3b533202 BV |
488 | relays[4] = ~relays[4]; |
489 | ||
269971dd | 490 | if (devc->voltage_ch2 < VDIV_100MV) |
3b533202 BV |
491 | relays[5] = ~relays[5]; |
492 | ||
e98b7f1b | 493 | sr_dbg("CH2 coupling: %d.", devc->coupling_ch1); |
269971dd | 494 | if (devc->coupling_ch2 != COUPLING_AC) |
3b533202 BV |
495 | relays[6] = ~relays[6]; |
496 | ||
269971dd | 497 | if (!strcmp(devc->triggersource, "EXT")) |
3b533202 BV |
498 | relays[7] = ~relays[7]; |
499 | ||
a217bcdf BV |
500 | if (sr_log_loglevel_get() >= SR_LOG_DBG) { |
501 | gs = g_string_sized_new(128); | |
e98b7f1b | 502 | g_string_printf(gs, "Relays:"); |
a217bcdf BV |
503 | for (i = 0; i < 17; i++) |
504 | g_string_append_printf(gs, " %.2x", relays[i]); | |
cbc6f3b2 | 505 | sr_dbg("%s", gs->str); |
a217bcdf BV |
506 | g_string_free(gs, TRUE); |
507 | } | |
508 | ||
269971dd | 509 | if ((ret = libusb_control_transfer(devc->usb->devhdl, |
3b533202 | 510 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_SETRELAYS, |
a217bcdf | 511 | 0, 0, relays, 17, 100)) != sizeof(relays)) { |
1740429d | 512 | sr_err("Failed to set relays: %s.", libusb_error_name(ret)); |
3b533202 BV |
513 | return SR_ERR; |
514 | } | |
e98b7f1b | 515 | sr_dbg("Sent CTRL_SETRELAYS."); |
3b533202 BV |
516 | |
517 | return SR_OK; | |
518 | } | |
519 | ||
269971dd | 520 | SR_PRIV int dso_set_voffsets(struct dev_context *devc) |
3b533202 BV |
521 | { |
522 | int offset, ret; | |
523 | uint16_t *ch_levels; | |
2715c0b8 BV |
524 | uint8_t offsets[17]; |
525 | ||
e98b7f1b | 526 | sr_dbg("Preparing CTRL_SETOFFSET."); |
2715c0b8 BV |
527 | |
528 | memset(offsets, 0, sizeof(offsets)); | |
529 | /* Channel 1 */ | |
269971dd BV |
530 | ch_levels = devc->channel_levels[0][devc->voltage_ch1]; |
531 | offset = (ch_levels[1] - ch_levels[0]) * devc->voffset_ch1 + ch_levels[0]; | |
2715c0b8 BV |
532 | offsets[0] = (offset >> 8) | 0x20; |
533 | offsets[1] = offset & 0xff; | |
e98b7f1b UH |
534 | sr_dbg("CH1 offset: %3.2f (%.2x%.2x).", devc->voffset_ch1, |
535 | offsets[0], offsets[1]); | |
2715c0b8 BV |
536 | |
537 | /* Channel 2 */ | |
269971dd BV |
538 | ch_levels = devc->channel_levels[1][devc->voltage_ch2]; |
539 | offset = (ch_levels[1] - ch_levels[0]) * devc->voffset_ch2 + ch_levels[0]; | |
2715c0b8 BV |
540 | offsets[2] = (offset >> 8) | 0x20; |
541 | offsets[3] = offset & 0xff; | |
e98b7f1b UH |
542 | sr_dbg("CH2 offset: %3.2f (%.2x%.2x).", devc->voffset_ch2, |
543 | offsets[2], offsets[3]); | |
2715c0b8 BV |
544 | |
545 | /* Trigger */ | |
269971dd | 546 | offset = MAX_VERT_TRIGGER * devc->voffset_trigger; |
2715c0b8 BV |
547 | offsets[4] = (offset >> 8) | 0x20; |
548 | offsets[5] = offset & 0xff; | |
e98b7f1b | 549 | sr_dbg("Trigger offset: %3.2f (%.2x%.2x).", devc->voffset_trigger, |
2715c0b8 | 550 | offsets[4], offsets[5]); |
3b533202 | 551 | |
269971dd | 552 | if ((ret = libusb_control_transfer(devc->usb->devhdl, |
3b533202 BV |
553 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_SETOFFSET, |
554 | 0, 0, offsets, sizeof(offsets), 100)) != sizeof(offsets)) { | |
1740429d | 555 | sr_err("Failed to set offsets: %s.", libusb_error_name(ret)); |
3b533202 BV |
556 | return SR_ERR; |
557 | } | |
e98b7f1b | 558 | sr_dbg("Sent CTRL_SETOFFSET."); |
3b533202 BV |
559 | |
560 | return SR_OK; | |
561 | } | |
562 | ||
269971dd | 563 | SR_PRIV int dso_enable_trigger(struct dev_context *devc) |
3b533202 BV |
564 | { |
565 | int ret, tmp; | |
566 | uint8_t cmdstring[2]; | |
567 | ||
e98b7f1b | 568 | sr_dbg("Sending CMD_ENABLE_TRIGGER."); |
3b533202 BV |
569 | |
570 | memset(cmdstring, 0, sizeof(cmdstring)); | |
571 | cmdstring[0] = CMD_ENABLE_TRIGGER; | |
572 | cmdstring[1] = 0x00; | |
573 | ||
269971dd | 574 | if (send_begin(devc) != SR_OK) |
3b533202 BV |
575 | return SR_ERR; |
576 | ||
269971dd | 577 | if ((ret = libusb_bulk_transfer(devc->usb->devhdl, |
3b533202 BV |
578 | DSO_EP_OUT | LIBUSB_ENDPOINT_OUT, |
579 | cmdstring, sizeof(cmdstring), | |
580 | &tmp, 100)) != 0) { | |
1740429d | 581 | sr_err("Failed to enable trigger: %s.", libusb_error_name(ret)); |
3b533202 BV |
582 | return SR_ERR; |
583 | } | |
584 | ||
585 | return SR_OK; | |
586 | } | |
587 | ||
269971dd | 588 | SR_PRIV int dso_force_trigger(struct dev_context *devc) |
3b533202 BV |
589 | { |
590 | int ret, tmp; | |
591 | uint8_t cmdstring[2]; | |
592 | ||
e98b7f1b | 593 | sr_dbg("Sending CMD_FORCE_TRIGGER."); |
3b533202 BV |
594 | |
595 | memset(cmdstring, 0, sizeof(cmdstring)); | |
596 | cmdstring[0] = CMD_FORCE_TRIGGER; | |
597 | cmdstring[1] = 0x00; | |
598 | ||
269971dd | 599 | if (send_begin(devc) != SR_OK) |
3b533202 BV |
600 | return SR_ERR; |
601 | ||
269971dd | 602 | if ((ret = libusb_bulk_transfer(devc->usb->devhdl, |
3b533202 BV |
603 | DSO_EP_OUT | LIBUSB_ENDPOINT_OUT, |
604 | cmdstring, sizeof(cmdstring), | |
605 | &tmp, 100)) != 0) { | |
1740429d | 606 | sr_err("Failed to force trigger: %s.", libusb_error_name(ret)); |
3b533202 BV |
607 | return SR_ERR; |
608 | } | |
609 | ||
610 | return SR_OK; | |
611 | } | |
612 | ||
269971dd | 613 | SR_PRIV int dso_init(struct dev_context *devc) |
3b533202 BV |
614 | { |
615 | ||
e98b7f1b | 616 | sr_dbg("Initializing DSO."); |
3b533202 | 617 | |
269971dd | 618 | if (get_channel_offsets(devc) != SR_OK) |
3b533202 BV |
619 | return SR_ERR; |
620 | ||
269971dd | 621 | if (dso_set_trigger_samplerate(devc) != SR_OK) |
3b533202 BV |
622 | return SR_ERR; |
623 | ||
269971dd | 624 | if (dso_set_filters(devc) != SR_OK) |
3b533202 BV |
625 | return SR_ERR; |
626 | ||
269971dd | 627 | if (dso_set_voltage(devc) != SR_OK) |
3b533202 BV |
628 | return SR_ERR; |
629 | ||
269971dd | 630 | if (dso_set_relays(devc) != SR_OK) |
3b533202 BV |
631 | return SR_ERR; |
632 | ||
269971dd | 633 | if (dso_set_voffsets(devc) != SR_OK) |
3b533202 BV |
634 | return SR_ERR; |
635 | ||
269971dd | 636 | if (dso_enable_trigger(devc) != SR_OK) |
3b533202 BV |
637 | return SR_ERR; |
638 | ||
3b533202 BV |
639 | return SR_OK; |
640 | } | |
641 | ||
e98b7f1b UH |
642 | SR_PRIV int dso_get_capturestate(struct dev_context *devc, |
643 | uint8_t *capturestate, | |
644 | uint32_t *trigger_offset) | |
3b533202 | 645 | { |
e05a174b BV |
646 | int ret, tmp, i; |
647 | unsigned int bitvalue, toff; | |
3b533202 BV |
648 | uint8_t cmdstring[2], inbuf[512]; |
649 | ||
e98b7f1b | 650 | sr_dbg("Sending CMD_GET_CAPTURESTATE."); |
3b533202 BV |
651 | |
652 | cmdstring[0] = CMD_GET_CAPTURESTATE; | |
653 | cmdstring[1] = 0; | |
654 | ||
269971dd | 655 | if ((ret = send_bulkcmd(devc, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
656 | sr_dbg("Failed to send get_capturestate command: %s.", |
657 | libusb_error_name(ret)); | |
6e6eeff4 | 658 | return SR_ERR; |
3b533202 BV |
659 | } |
660 | ||
269971dd | 661 | if ((ret = libusb_bulk_transfer(devc->usb->devhdl, |
3b533202 BV |
662 | DSO_EP_IN | LIBUSB_ENDPOINT_IN, |
663 | inbuf, 512, &tmp, 100)) != 0) { | |
d4928d71 PS |
664 | sr_dbg("Failed to get capturestate: %s.", |
665 | libusb_error_name(ret)); | |
6e6eeff4 | 666 | return SR_ERR; |
3b533202 | 667 | } |
6e6eeff4 | 668 | *capturestate = inbuf[0]; |
e05a174b BV |
669 | toff = (inbuf[1] << 16) | (inbuf[3] << 8) | inbuf[2]; |
670 | ||
e98b7f1b UH |
671 | /* |
672 | * This conversion comes from the openhantek project. | |
e05a174b BV |
673 | * Each set bit in the 24-bit value inverts all bits with a lower |
674 | * value. No idea why the device reports the trigger point this way. | |
675 | */ | |
676 | bitvalue = 1; | |
677 | for (i = 0; i < 24; i++) { | |
e749a8cb | 678 | /* Each set bit inverts all bits with a lower value. */ |
e05a174b BV |
679 | if(toff & bitvalue) |
680 | toff ^= bitvalue - 1; | |
681 | bitvalue <<= 1; | |
682 | } | |
683 | *trigger_offset = toff; | |
3b533202 | 684 | |
6e6eeff4 | 685 | return SR_OK; |
3b533202 BV |
686 | } |
687 | ||
269971dd | 688 | SR_PRIV int dso_capture_start(struct dev_context *devc) |
3b533202 BV |
689 | { |
690 | int ret; | |
691 | uint8_t cmdstring[2]; | |
692 | ||
e98b7f1b | 693 | sr_dbg("Sending CMD_CAPTURE_START."); |
3b533202 BV |
694 | |
695 | cmdstring[0] = CMD_CAPTURE_START; | |
696 | cmdstring[1] = 0; | |
697 | ||
269971dd | 698 | if ((ret = send_bulkcmd(devc, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
699 | sr_err("Failed to send capture_start command: %s.", |
700 | libusb_error_name(ret)); | |
3b533202 BV |
701 | return SR_ERR; |
702 | } | |
703 | ||
704 | return SR_OK; | |
705 | } | |
706 | ||
69e19dd7 BV |
707 | SR_PRIV int dso_get_channeldata(const struct sr_dev_inst *sdi, |
708 | libusb_transfer_cb_fn cb) | |
3b533202 | 709 | { |
69e19dd7 | 710 | struct dev_context *devc; |
3b533202 BV |
711 | struct libusb_transfer *transfer; |
712 | int num_transfers, ret, i; | |
713 | uint8_t cmdstring[2]; | |
714 | unsigned char *buf; | |
715 | ||
69e19dd7 | 716 | devc = sdi->priv; |
e98b7f1b | 717 | sr_dbg("Sending CMD_GET_CHANNELDATA."); |
3b533202 BV |
718 | |
719 | cmdstring[0] = CMD_GET_CHANNELDATA; | |
720 | cmdstring[1] = 0; | |
721 | ||
269971dd | 722 | if ((ret = send_bulkcmd(devc, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
723 | sr_err("Failed to get channel data: %s.", |
724 | libusb_error_name(ret)); | |
3b533202 BV |
725 | return SR_ERR; |
726 | } | |
727 | ||
e98b7f1b UH |
728 | /* TODO: DSO-2xxx only. */ |
729 | num_transfers = devc->framesize * | |
730 | sizeof(unsigned short) / devc->epin_maxpacketsize; | |
731 | sr_dbg("Queueing up %d transfers.", num_transfers); | |
3b533202 | 732 | for (i = 0; i < num_transfers; i++) { |
269971dd | 733 | if (!(buf = g_try_malloc(devc->epin_maxpacketsize))) { |
e98b7f1b | 734 | sr_err("Failed to malloc USB endpoint buffer."); |
3b533202 BV |
735 | return SR_ERR_MALLOC; |
736 | } | |
737 | transfer = libusb_alloc_transfer(0); | |
269971dd | 738 | libusb_fill_bulk_transfer(transfer, devc->usb->devhdl, |
3b533202 | 739 | DSO_EP_IN | LIBUSB_ENDPOINT_IN, buf, |
69e19dd7 | 740 | devc->epin_maxpacketsize, cb, (void *)sdi, 40); |
3b533202 | 741 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
d4928d71 PS |
742 | sr_err("Failed to submit transfer: %s.", |
743 | libusb_error_name(ret)); | |
3b533202 BV |
744 | /* TODO: Free them all. */ |
745 | libusb_free_transfer(transfer); | |
746 | g_free(buf); | |
747 | return SR_ERR; | |
748 | } | |
749 | } | |
750 | ||
751 | return SR_OK; | |
752 | } |