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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 | ||
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 | |
c118080b | 31 | static int send_begin(const struct sr_dev_inst *sdi) |
3b533202 | 32 | { |
c118080b | 33 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
34 | int ret; |
35 | unsigned char buffer[] = {0x0f, 0x03, 0x03, 0x03, 0x68, 0xac, 0xfe, | |
36 | 0x00, 0x01, 0x00}; | |
37 | ||
e98b7f1b | 38 | sr_dbg("Sending CTRL_BEGINCOMMAND."); |
3b533202 | 39 | |
c118080b BV |
40 | usb = sdi->conn; |
41 | if ((ret = libusb_control_transfer(usb->devhdl, | |
3b533202 BV |
42 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_BEGINCOMMAND, |
43 | 0, 0, buffer, sizeof(buffer), 200)) != sizeof(buffer)) { | |
d4928d71 PS |
44 | sr_err("Failed to send begincommand: %s.", |
45 | libusb_error_name(ret)); | |
3b533202 BV |
46 | return SR_ERR; |
47 | } | |
48 | ||
49 | return SR_OK; | |
50 | } | |
51 | ||
c118080b | 52 | static int send_bulkcmd(const struct sr_dev_inst *sdi, uint8_t *cmdstring, int cmdlen) |
3b533202 | 53 | { |
c118080b | 54 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
55 | int ret, tmp; |
56 | ||
c118080b BV |
57 | usb = sdi->conn; |
58 | ||
59 | if (send_begin(sdi) != SR_OK) | |
3b533202 BV |
60 | return SR_ERR; |
61 | ||
c118080b BV |
62 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, cmdstring, |
63 | cmdlen, &tmp, 200)) != 0) | |
3b533202 BV |
64 | return SR_ERR; |
65 | ||
66 | return SR_OK; | |
67 | } | |
68 | ||
d87c1766 | 69 | static int dso_getmps(libusb_device *dev) |
3b533202 BV |
70 | { |
71 | struct libusb_device_descriptor des; | |
72 | struct libusb_config_descriptor *conf_dsc; | |
73 | const struct libusb_interface_descriptor *intf_dsc; | |
74 | int mps; | |
75 | ||
76 | if (libusb_get_device_descriptor(dev, &des) != 0) | |
77 | return 0; | |
78 | ||
79 | if (des.bNumConfigurations != 1) | |
80 | return 0; | |
81 | ||
82 | if (libusb_get_config_descriptor(dev, 0, &conf_dsc) != 0) | |
83 | return 0; | |
84 | ||
85 | mps = 0; | |
86 | intf_dsc = &(conf_dsc->interface[0].altsetting[0]); | |
87 | if (intf_dsc->bNumEndpoints != 2) | |
88 | goto err; | |
89 | ||
90 | if ((intf_dsc->endpoint[0].bEndpointAddress & 0x8f) != | |
91 | (2 | LIBUSB_ENDPOINT_OUT)) | |
92 | /* The first endpoint should be 2 (outbound). */ | |
93 | goto err; | |
94 | ||
95 | if ((intf_dsc->endpoint[1].bEndpointAddress & 0x8f) != | |
96 | (6 | LIBUSB_ENDPOINT_IN)) | |
97 | /* The second endpoint should be 6 (inbound). */ | |
98 | goto err; | |
99 | ||
100 | mps = intf_dsc->endpoint[1].wMaxPacketSize; | |
101 | ||
102 | err: | |
103 | if (conf_dsc) | |
104 | libusb_free_config_descriptor(conf_dsc); | |
105 | ||
106 | return mps; | |
107 | } | |
108 | ||
25a0f108 | 109 | SR_PRIV int dso_open(struct sr_dev_inst *sdi) |
3b533202 | 110 | { |
269971dd | 111 | struct dev_context *devc; |
d4abb463 | 112 | struct drv_context *drvc = hantek_dso_driver_info.priv; |
c118080b BV |
113 | struct sr_usb_dev_inst *usb; |
114 | struct libusb_device_descriptor des; | |
115 | libusb_device **devlist; | |
3b533202 BV |
116 | int err, skip, i; |
117 | ||
269971dd | 118 | devc = sdi->priv; |
c118080b | 119 | usb = sdi->conn; |
3b533202 BV |
120 | |
121 | if (sdi->status == SR_ST_ACTIVE) | |
122 | /* already in use */ | |
123 | return SR_ERR; | |
124 | ||
125 | skip = 0; | |
d4abb463 | 126 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
3b533202 BV |
127 | for (i = 0; devlist[i]; i++) { |
128 | if ((err = libusb_get_device_descriptor(devlist[i], &des))) { | |
d4928d71 PS |
129 | sr_err("Failed to get device descriptor: %s.", |
130 | libusb_error_name(err)); | |
3b533202 BV |
131 | continue; |
132 | } | |
133 | ||
269971dd BV |
134 | if (des.idVendor != devc->profile->fw_vid |
135 | || des.idProduct != devc->profile->fw_pid) | |
3b533202 BV |
136 | continue; |
137 | ||
138 | if (sdi->status == SR_ST_INITIALIZING) { | |
25a0f108 | 139 | if (skip != sdi->index) { |
3b533202 BV |
140 | /* Skip devices of this type that aren't the one we want. */ |
141 | skip += 1; | |
142 | continue; | |
143 | } | |
144 | } else if (sdi->status == SR_ST_INACTIVE) { | |
145 | /* | |
146 | * This device is fully enumerated, so we need to find | |
147 | * this device by vendor, product, bus and address. | |
148 | */ | |
c118080b BV |
149 | if (libusb_get_bus_number(devlist[i]) != usb->bus |
150 | || libusb_get_device_address(devlist[i]) != usb->address) | |
3b533202 BV |
151 | /* this is not the one */ |
152 | continue; | |
153 | } | |
154 | ||
c118080b BV |
155 | if (!(err = libusb_open(devlist[i], &usb->devhdl))) { |
156 | if (usb->address == 0xff) | |
3b533202 BV |
157 | /* |
158 | * first time we touch this device after firmware upload, | |
159 | * so we don't know the address yet. | |
160 | */ | |
c118080b | 161 | usb->address = libusb_get_device_address(devlist[i]); |
3b533202 | 162 | |
e98b7f1b UH |
163 | if (!(devc->epin_maxpacketsize = dso_getmps(devlist[i]))) |
164 | sr_err("Wrong endpoint profile."); | |
3b533202 BV |
165 | else { |
166 | sdi->status = SR_ST_ACTIVE; | |
e98b7f1b | 167 | sr_info("Opened device %d on %d.%d interface %d.", |
c118080b BV |
168 | sdi->index, usb->bus, |
169 | usb->address, USB_INTERFACE); | |
3b533202 BV |
170 | } |
171 | } else { | |
d4928d71 PS |
172 | sr_err("Failed to open device: %s.", |
173 | libusb_error_name(err)); | |
3b533202 BV |
174 | } |
175 | ||
e98b7f1b | 176 | /* If we made it here, we handled the device (somehow). */ |
3b533202 BV |
177 | break; |
178 | } | |
179 | libusb_free_device_list(devlist, 1); | |
180 | ||
181 | if (sdi->status != SR_ST_ACTIVE) | |
182 | return SR_ERR; | |
183 | ||
184 | return SR_OK; | |
185 | } | |
186 | ||
187 | SR_PRIV void dso_close(struct sr_dev_inst *sdi) | |
188 | { | |
c118080b | 189 | struct sr_usb_dev_inst *usb; |
3b533202 | 190 | |
c118080b | 191 | usb = sdi->conn; |
3b533202 | 192 | |
c118080b | 193 | if (usb->devhdl == NULL) |
3b533202 BV |
194 | return; |
195 | ||
e98b7f1b | 196 | sr_info("Closing device %d on %d.%d interface %d.", sdi->index, |
c118080b BV |
197 | usb->bus, usb->address, USB_INTERFACE); |
198 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
199 | libusb_close(usb->devhdl); | |
200 | usb->devhdl = NULL; | |
3b533202 BV |
201 | sdi->status = SR_ST_INACTIVE; |
202 | ||
203 | } | |
204 | ||
c118080b | 205 | static int get_channel_offsets(const struct sr_dev_inst *sdi) |
3b533202 | 206 | { |
c118080b BV |
207 | struct dev_context *devc; |
208 | struct sr_usb_dev_inst *usb; | |
2715c0b8 BV |
209 | GString *gs; |
210 | int chan, v, ret; | |
3b533202 | 211 | |
e98b7f1b | 212 | sr_dbg("Getting channel offsets."); |
3b533202 | 213 | |
c118080b BV |
214 | devc = sdi->priv; |
215 | usb = sdi->conn; | |
216 | ||
217 | ret = libusb_control_transfer(usb->devhdl, | |
3b533202 BV |
218 | LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_VENDOR, |
219 | CTRL_READ_EEPROM, EEPROM_CHANNEL_OFFSETS, 0, | |
269971dd BV |
220 | (unsigned char *)&devc->channel_levels, |
221 | sizeof(devc->channel_levels), 200); | |
222 | if (ret != sizeof(devc->channel_levels)) { | |
d4928d71 PS |
223 | sr_err("Failed to get channel offsets: %s.", |
224 | libusb_error_name(ret)); | |
3b533202 BV |
225 | return SR_ERR; |
226 | } | |
227 | ||
2715c0b8 BV |
228 | /* Comes in as 16-bit numbers with the second byte always 0 on |
229 | * the DSO-2090. Guessing this is supposed to be big-endian, | |
230 | * since that's how voltage offsets are submitted back to the DSO. | |
231 | * Convert to host order now, so we can use them natively. | |
232 | */ | |
233 | for (chan = 0; chan < 2; chan++) { | |
234 | for (v = 0; v < 9; v++) { | |
e98b7f1b UH |
235 | devc->channel_levels[chan][v][0] = |
236 | g_ntohs(devc->channel_levels[chan][v][0]); | |
237 | devc->channel_levels[chan][v][1] = | |
238 | g_ntohs(devc->channel_levels[chan][v][1]); | |
2715c0b8 BV |
239 | } |
240 | } | |
241 | ||
242 | if (sr_log_loglevel_get() >= SR_LOG_DBG) { | |
243 | gs = g_string_sized_new(128); | |
244 | for (chan = 0; chan < 2; chan++) { | |
e98b7f1b | 245 | g_string_printf(gs, "CH%d:", chan + 1); |
2715c0b8 BV |
246 | for (v = 0; v < 9; v++) { |
247 | g_string_append_printf(gs, " %.4x-%.4x", | |
e98b7f1b UH |
248 | devc->channel_levels[chan][v][0], |
249 | devc->channel_levels[chan][v][1]); | |
2715c0b8 | 250 | } |
cbc6f3b2 | 251 | sr_dbg("%s", gs->str); |
2715c0b8 BV |
252 | } |
253 | g_string_free(gs, TRUE); | |
254 | } | |
255 | ||
3b533202 BV |
256 | return SR_OK; |
257 | } | |
258 | ||
d87c1766 | 259 | static int dso_set_trigger_samplerate(const struct sr_dev_inst *sdi) |
3b533202 | 260 | { |
c118080b BV |
261 | struct dev_context *devc; |
262 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
263 | int ret, tmp; |
264 | uint8_t cmdstring[12]; | |
3b533202 | 265 | uint16_t timebase_small[] = { 0xffff, 0xfffc, 0xfff7, 0xffe8, 0xffce, |
e98b7f1b | 266 | 0xff9c, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79, 0xd8f1 }; |
3b533202 | 267 | uint16_t timebase_large[] = { 0xffff, 0x0000, 0xfffc, 0xfff7, 0xffe8, |
e98b7f1b | 268 | 0xffce, 0xff9d, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79 }; |
3b533202 | 269 | |
e98b7f1b | 270 | sr_dbg("Preparing CMD_SET_TRIGGER_SAMPLERATE."); |
3b533202 | 271 | |
c118080b BV |
272 | devc = sdi->priv; |
273 | usb = sdi->conn; | |
274 | ||
3b533202 BV |
275 | memset(cmdstring, 0, sizeof(cmdstring)); |
276 | /* Command */ | |
277 | cmdstring[0] = CMD_SET_TRIGGER_SAMPLERATE; | |
278 | ||
279 | /* Trigger source */ | |
e98b7f1b | 280 | sr_dbg("Trigger source %s.", devc->triggersource); |
269971dd | 281 | if (!strcmp("CH2", devc->triggersource)) |
a370ef19 | 282 | tmp = 0; |
269971dd | 283 | else if (!strcmp("CH1", devc->triggersource)) |
a370ef19 | 284 | tmp = 1; |
269971dd | 285 | else if (!strcmp("EXT", devc->triggersource)) |
a370ef19 BV |
286 | tmp = 2; |
287 | else { | |
e98b7f1b | 288 | sr_err("Invalid trigger source: '%s'.", devc->triggersource); |
a370ef19 BV |
289 | return SR_ERR_ARG; |
290 | } | |
291 | cmdstring[2] = tmp; | |
3b533202 BV |
292 | |
293 | /* Frame size */ | |
e98b7f1b | 294 | sr_dbg("Frame size: %d.", devc->framesize); |
269971dd | 295 | cmdstring[2] |= (devc->framesize == FRAMESIZE_SMALL ? 0x01 : 0x02) << 2; |
bc79e906 BV |
296 | |
297 | /* Timebase fast */ | |
e98b7f1b | 298 | sr_dbg("Time base index: %d.", devc->timebase); |
034accb5 | 299 | if (devc->framesize == FRAMESIZE_SMALL) { |
269971dd | 300 | if (devc->timebase < TIME_20us) |
bc79e906 | 301 | tmp = 0; |
269971dd | 302 | else if (devc->timebase == TIME_20us) |
bc79e906 | 303 | tmp = 1; |
269971dd | 304 | else if (devc->timebase == TIME_40us) |
bc79e906 | 305 | tmp = 2; |
269971dd | 306 | else if (devc->timebase == TIME_100us) |
bc79e906 | 307 | tmp = 3; |
269971dd | 308 | else if (devc->timebase >= TIME_200us) |
bc79e906 | 309 | tmp = 4; |
034accb5 | 310 | } else { |
269971dd | 311 | if (devc->timebase < TIME_40us) { |
e98b7f1b | 312 | sr_err("Timebase < 40us only supported with 10K buffer."); |
bc79e906 BV |
313 | return SR_ERR_ARG; |
314 | } | |
269971dd | 315 | else if (devc->timebase == TIME_40us) |
bc79e906 | 316 | tmp = 0; |
269971dd | 317 | else if (devc->timebase == TIME_100us) |
bc79e906 | 318 | tmp = 2; |
269971dd | 319 | else if (devc->timebase == TIME_200us) |
bc79e906 | 320 | tmp = 3; |
269971dd | 321 | else if (devc->timebase >= TIME_400us) |
bc79e906 | 322 | tmp = 4; |
3b533202 | 323 | } |
bc79e906 BV |
324 | cmdstring[2] |= (tmp & 0x07) << 5; |
325 | ||
326 | /* Enabled channels: 00=CH1 01=CH2 10=both */ | |
e98b7f1b | 327 | sr_dbg("Channels CH1=%d CH2=%d", devc->ch1_enabled, devc->ch2_enabled); |
269971dd | 328 | tmp = (((devc->ch2_enabled ? 1 : 0) << 1) + (devc->ch1_enabled ? 1 : 0)) - 1; |
6e71ef3b | 329 | cmdstring[3] = tmp; |
3b533202 | 330 | |
bc79e906 | 331 | /* Fast rates channel */ |
e98b7f1b | 332 | /* TODO: Is this right? */ |
269971dd | 333 | tmp = devc->timebase < TIME_10us ? 1 : 0; |
bc79e906 | 334 | cmdstring[3] |= tmp << 2; |
3b533202 | 335 | |
bc79e906 | 336 | /* Trigger slope: 0=positive 1=negative */ |
e98b7f1b UH |
337 | /* TODO: Does this work? */ |
338 | sr_dbg("Trigger slope: %d.", devc->triggerslope); | |
269971dd | 339 | cmdstring[3] |= (devc->triggerslope == SLOPE_NEGATIVE ? 1 : 0) << 3; |
3b533202 | 340 | |
a370ef19 | 341 | /* Timebase slow */ |
269971dd | 342 | if (devc->timebase < TIME_100us) |
3b533202 | 343 | tmp = 0; |
269971dd | 344 | else if (devc->timebase > TIME_400ms) |
3b533202 BV |
345 | tmp = 0xffed; |
346 | else { | |
269971dd BV |
347 | if (devc->framesize == FRAMESIZE_SMALL) |
348 | tmp = timebase_small[devc->timebase - 3]; | |
3b533202 | 349 | else |
269971dd | 350 | tmp = timebase_large[devc->timebase - 3]; |
3b533202 | 351 | } |
bc79e906 BV |
352 | cmdstring[4] = tmp & 0xff; |
353 | cmdstring[5] = (tmp >> 8) & 0xff; | |
354 | ||
355 | /* Horizontal trigger position */ | |
e98b7f1b | 356 | sr_dbg("Trigger position: %3.2f.", devc->triggerposition); |
269971dd | 357 | tmp = 0x77fff + 0x8000 * devc->triggerposition; |
3b533202 BV |
358 | cmdstring[6] = tmp & 0xff; |
359 | cmdstring[7] = (tmp >> 8) & 0xff; | |
3b533202 BV |
360 | cmdstring[10] = (tmp >> 16) & 0xff; |
361 | ||
c118080b | 362 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
363 | return SR_ERR; |
364 | ||
c118080b BV |
365 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
366 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
d4928d71 PS |
367 | sr_err("Failed to set trigger/samplerate: %s.", |
368 | libusb_error_name(ret)); | |
3b533202 BV |
369 | return SR_ERR; |
370 | } | |
e98b7f1b | 371 | sr_dbg("Sent CMD_SET_TRIGGER_SAMPLERATE."); |
3b533202 BV |
372 | |
373 | return SR_OK; | |
374 | } | |
375 | ||
d87c1766 | 376 | static int dso_set_filters(const struct sr_dev_inst *sdi) |
3b533202 | 377 | { |
c118080b BV |
378 | struct dev_context *devc; |
379 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
380 | int ret, tmp; |
381 | uint8_t cmdstring[8]; | |
382 | ||
e98b7f1b | 383 | sr_dbg("Preparing CMD_SET_FILTERS."); |
3b533202 | 384 | |
c118080b BV |
385 | devc = sdi->priv; |
386 | usb = sdi->conn; | |
387 | ||
3b533202 BV |
388 | memset(cmdstring, 0, sizeof(cmdstring)); |
389 | cmdstring[0] = CMD_SET_FILTERS; | |
390 | cmdstring[1] = 0x0f; | |
269971dd | 391 | if (devc->filter_ch1) { |
e98b7f1b | 392 | sr_dbg("Turning on CH1 filter."); |
3b533202 | 393 | cmdstring[2] |= 0x80; |
ebb781a6 | 394 | } |
269971dd | 395 | if (devc->filter_ch2) { |
e98b7f1b | 396 | sr_dbg("Turning on CH2 filter."); |
3b533202 | 397 | cmdstring[2] |= 0x40; |
ebb781a6 | 398 | } |
269971dd | 399 | if (devc->filter_trigger) { |
ebb781a6 | 400 | /* TODO: supported on the DSO-2090? */ |
e98b7f1b | 401 | sr_dbg("Turning on trigger filter."); |
3b533202 | 402 | cmdstring[2] |= 0x20; |
ebb781a6 | 403 | } |
3b533202 | 404 | |
c118080b | 405 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
406 | return SR_ERR; |
407 | ||
c118080b BV |
408 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
409 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 410 | sr_err("Failed to set filters: %s.", libusb_error_name(ret)); |
3b533202 BV |
411 | return SR_ERR; |
412 | } | |
e98b7f1b | 413 | sr_dbg("Sent CMD_SET_FILTERS."); |
3b533202 BV |
414 | |
415 | return SR_OK; | |
416 | } | |
417 | ||
d87c1766 | 418 | static int dso_set_voltage(const struct sr_dev_inst *sdi) |
3b533202 | 419 | { |
c118080b BV |
420 | struct dev_context *devc; |
421 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
422 | int ret, tmp; |
423 | uint8_t cmdstring[8]; | |
424 | ||
e98b7f1b | 425 | sr_dbg("Preparing CMD_SET_VOLTAGE."); |
3b533202 | 426 | |
c118080b BV |
427 | devc = sdi->priv; |
428 | usb = sdi->conn; | |
429 | ||
3b533202 BV |
430 | memset(cmdstring, 0, sizeof(cmdstring)); |
431 | cmdstring[0] = CMD_SET_VOLTAGE; | |
432 | cmdstring[1] = 0x0f; | |
313deed2 BV |
433 | cmdstring[2] = 0x30; |
434 | ||
435 | /* CH1 volts/div is encoded in bits 0-1 */ | |
e98b7f1b | 436 | sr_dbg("CH1 vdiv index: %d.", devc->voltage_ch1); |
269971dd | 437 | switch (devc->voltage_ch1) { |
313deed2 BV |
438 | case VDIV_1V: |
439 | case VDIV_100MV: | |
440 | case VDIV_10MV: | |
441 | cmdstring[2] |= 0x00; | |
442 | break; | |
443 | case VDIV_2V: | |
444 | case VDIV_200MV: | |
445 | case VDIV_20MV: | |
446 | cmdstring[2] |= 0x01; | |
447 | break; | |
448 | case VDIV_5V: | |
449 | case VDIV_500MV: | |
450 | case VDIV_50MV: | |
451 | cmdstring[2] |= 0x02; | |
452 | break; | |
453 | } | |
454 | ||
455 | /* CH2 volts/div is encoded in bits 2-3 */ | |
e98b7f1b | 456 | sr_dbg("CH2 vdiv index: %d.", devc->voltage_ch2); |
269971dd | 457 | switch (devc->voltage_ch2) { |
313deed2 BV |
458 | case VDIV_1V: |
459 | case VDIV_100MV: | |
460 | case VDIV_10MV: | |
461 | cmdstring[2] |= 0x00; | |
462 | break; | |
463 | case VDIV_2V: | |
464 | case VDIV_200MV: | |
465 | case VDIV_20MV: | |
1d97091e | 466 | cmdstring[2] |= 0x04; |
313deed2 BV |
467 | break; |
468 | case VDIV_5V: | |
469 | case VDIV_500MV: | |
470 | case VDIV_50MV: | |
1d97091e | 471 | cmdstring[2] |= 0x08; |
313deed2 BV |
472 | break; |
473 | } | |
3b533202 | 474 | |
c118080b | 475 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
476 | return SR_ERR; |
477 | ||
c118080b BV |
478 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
479 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 480 | sr_err("Failed to set voltage: %s.", libusb_error_name(ret)); |
3b533202 BV |
481 | return SR_ERR; |
482 | } | |
e98b7f1b | 483 | sr_dbg("Sent CMD_SET_VOLTAGE."); |
3b533202 BV |
484 | |
485 | return SR_OK; | |
486 | } | |
487 | ||
d87c1766 | 488 | static int dso_set_relays(const struct sr_dev_inst *sdi) |
3b533202 | 489 | { |
c118080b BV |
490 | struct dev_context *devc; |
491 | struct sr_usb_dev_inst *usb; | |
a217bcdf BV |
492 | GString *gs; |
493 | int ret, i; | |
494 | uint8_t relays[17] = { 0x00, 0x04, 0x08, 0x02, 0x20, 0x40, 0x10, 0x01, | |
3b533202 BV |
495 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
496 | ||
e98b7f1b | 497 | sr_dbg("Preparing CTRL_SETRELAYS."); |
3b533202 | 498 | |
c118080b BV |
499 | devc = sdi->priv; |
500 | usb = sdi->conn; | |
501 | ||
269971dd | 502 | if (devc->voltage_ch1 < VDIV_1V) |
3b533202 BV |
503 | relays[1] = ~relays[1]; |
504 | ||
269971dd | 505 | if (devc->voltage_ch1 < VDIV_100MV) |
3b533202 BV |
506 | relays[2] = ~relays[2]; |
507 | ||
e98b7f1b | 508 | sr_dbg("CH1 coupling: %d.", devc->coupling_ch1); |
269971dd | 509 | if (devc->coupling_ch1 != COUPLING_AC) |
3b533202 BV |
510 | relays[3] = ~relays[3]; |
511 | ||
269971dd | 512 | if (devc->voltage_ch2 < VDIV_1V) |
3b533202 BV |
513 | relays[4] = ~relays[4]; |
514 | ||
269971dd | 515 | if (devc->voltage_ch2 < VDIV_100MV) |
3b533202 BV |
516 | relays[5] = ~relays[5]; |
517 | ||
e98b7f1b | 518 | sr_dbg("CH2 coupling: %d.", devc->coupling_ch1); |
269971dd | 519 | if (devc->coupling_ch2 != COUPLING_AC) |
3b533202 BV |
520 | relays[6] = ~relays[6]; |
521 | ||
269971dd | 522 | if (!strcmp(devc->triggersource, "EXT")) |
3b533202 BV |
523 | relays[7] = ~relays[7]; |
524 | ||
a217bcdf BV |
525 | if (sr_log_loglevel_get() >= SR_LOG_DBG) { |
526 | gs = g_string_sized_new(128); | |
e98b7f1b | 527 | g_string_printf(gs, "Relays:"); |
a217bcdf BV |
528 | for (i = 0; i < 17; i++) |
529 | g_string_append_printf(gs, " %.2x", relays[i]); | |
cbc6f3b2 | 530 | sr_dbg("%s", gs->str); |
a217bcdf BV |
531 | g_string_free(gs, TRUE); |
532 | } | |
533 | ||
c118080b | 534 | if ((ret = libusb_control_transfer(usb->devhdl, |
3b533202 | 535 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_SETRELAYS, |
a217bcdf | 536 | 0, 0, relays, 17, 100)) != sizeof(relays)) { |
1740429d | 537 | sr_err("Failed to set relays: %s.", libusb_error_name(ret)); |
3b533202 BV |
538 | return SR_ERR; |
539 | } | |
e98b7f1b | 540 | sr_dbg("Sent CTRL_SETRELAYS."); |
3b533202 BV |
541 | |
542 | return SR_OK; | |
543 | } | |
544 | ||
d87c1766 | 545 | static int dso_set_voffsets(const struct sr_dev_inst *sdi) |
3b533202 | 546 | { |
c118080b BV |
547 | struct dev_context *devc; |
548 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
549 | int offset, ret; |
550 | uint16_t *ch_levels; | |
2715c0b8 BV |
551 | uint8_t offsets[17]; |
552 | ||
e98b7f1b | 553 | sr_dbg("Preparing CTRL_SETOFFSET."); |
2715c0b8 | 554 | |
c118080b BV |
555 | devc = sdi->priv; |
556 | usb = sdi->conn; | |
557 | ||
2715c0b8 BV |
558 | memset(offsets, 0, sizeof(offsets)); |
559 | /* Channel 1 */ | |
269971dd BV |
560 | ch_levels = devc->channel_levels[0][devc->voltage_ch1]; |
561 | offset = (ch_levels[1] - ch_levels[0]) * devc->voffset_ch1 + ch_levels[0]; | |
2715c0b8 BV |
562 | offsets[0] = (offset >> 8) | 0x20; |
563 | offsets[1] = offset & 0xff; | |
e98b7f1b UH |
564 | sr_dbg("CH1 offset: %3.2f (%.2x%.2x).", devc->voffset_ch1, |
565 | offsets[0], offsets[1]); | |
2715c0b8 BV |
566 | |
567 | /* Channel 2 */ | |
269971dd BV |
568 | ch_levels = devc->channel_levels[1][devc->voltage_ch2]; |
569 | offset = (ch_levels[1] - ch_levels[0]) * devc->voffset_ch2 + ch_levels[0]; | |
2715c0b8 BV |
570 | offsets[2] = (offset >> 8) | 0x20; |
571 | offsets[3] = offset & 0xff; | |
e98b7f1b UH |
572 | sr_dbg("CH2 offset: %3.2f (%.2x%.2x).", devc->voffset_ch2, |
573 | offsets[2], offsets[3]); | |
2715c0b8 BV |
574 | |
575 | /* Trigger */ | |
269971dd | 576 | offset = MAX_VERT_TRIGGER * devc->voffset_trigger; |
2715c0b8 BV |
577 | offsets[4] = (offset >> 8) | 0x20; |
578 | offsets[5] = offset & 0xff; | |
e98b7f1b | 579 | sr_dbg("Trigger offset: %3.2f (%.2x%.2x).", devc->voffset_trigger, |
2715c0b8 | 580 | offsets[4], offsets[5]); |
3b533202 | 581 | |
c118080b | 582 | if ((ret = libusb_control_transfer(usb->devhdl, |
3b533202 BV |
583 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_SETOFFSET, |
584 | 0, 0, offsets, sizeof(offsets), 100)) != sizeof(offsets)) { | |
1740429d | 585 | sr_err("Failed to set offsets: %s.", libusb_error_name(ret)); |
3b533202 BV |
586 | return SR_ERR; |
587 | } | |
e98b7f1b | 588 | sr_dbg("Sent CTRL_SETOFFSET."); |
3b533202 BV |
589 | |
590 | return SR_OK; | |
591 | } | |
592 | ||
c118080b | 593 | SR_PRIV int dso_enable_trigger(const struct sr_dev_inst *sdi) |
3b533202 | 594 | { |
c118080b | 595 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
596 | int ret, tmp; |
597 | uint8_t cmdstring[2]; | |
598 | ||
e98b7f1b | 599 | sr_dbg("Sending CMD_ENABLE_TRIGGER."); |
3b533202 | 600 | |
c118080b BV |
601 | usb = sdi->conn; |
602 | ||
3b533202 BV |
603 | memset(cmdstring, 0, sizeof(cmdstring)); |
604 | cmdstring[0] = CMD_ENABLE_TRIGGER; | |
605 | cmdstring[1] = 0x00; | |
606 | ||
c118080b | 607 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
608 | return SR_ERR; |
609 | ||
c118080b BV |
610 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
611 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 612 | sr_err("Failed to enable trigger: %s.", libusb_error_name(ret)); |
3b533202 BV |
613 | return SR_ERR; |
614 | } | |
615 | ||
616 | return SR_OK; | |
617 | } | |
618 | ||
c118080b | 619 | SR_PRIV int dso_force_trigger(const struct sr_dev_inst *sdi) |
3b533202 | 620 | { |
c118080b | 621 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
622 | int ret, tmp; |
623 | uint8_t cmdstring[2]; | |
624 | ||
e98b7f1b | 625 | sr_dbg("Sending CMD_FORCE_TRIGGER."); |
3b533202 | 626 | |
c118080b BV |
627 | usb = sdi->conn; |
628 | ||
3b533202 BV |
629 | memset(cmdstring, 0, sizeof(cmdstring)); |
630 | cmdstring[0] = CMD_FORCE_TRIGGER; | |
631 | cmdstring[1] = 0x00; | |
632 | ||
c118080b | 633 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
634 | return SR_ERR; |
635 | ||
c118080b BV |
636 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
637 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 638 | sr_err("Failed to force trigger: %s.", libusb_error_name(ret)); |
3b533202 BV |
639 | return SR_ERR; |
640 | } | |
641 | ||
642 | return SR_OK; | |
643 | } | |
644 | ||
c118080b | 645 | SR_PRIV int dso_init(const struct sr_dev_inst *sdi) |
3b533202 BV |
646 | { |
647 | ||
e98b7f1b | 648 | sr_dbg("Initializing DSO."); |
3b533202 | 649 | |
c118080b | 650 | if (get_channel_offsets(sdi) != SR_OK) |
3b533202 BV |
651 | return SR_ERR; |
652 | ||
c118080b | 653 | if (dso_set_trigger_samplerate(sdi) != SR_OK) |
3b533202 BV |
654 | return SR_ERR; |
655 | ||
c118080b | 656 | if (dso_set_filters(sdi) != SR_OK) |
3b533202 BV |
657 | return SR_ERR; |
658 | ||
c118080b | 659 | if (dso_set_voltage(sdi) != SR_OK) |
3b533202 BV |
660 | return SR_ERR; |
661 | ||
c118080b | 662 | if (dso_set_relays(sdi) != SR_OK) |
3b533202 BV |
663 | return SR_ERR; |
664 | ||
c118080b | 665 | if (dso_set_voffsets(sdi) != SR_OK) |
3b533202 BV |
666 | return SR_ERR; |
667 | ||
c118080b | 668 | if (dso_enable_trigger(sdi) != SR_OK) |
3b533202 BV |
669 | return SR_ERR; |
670 | ||
3b533202 BV |
671 | return SR_OK; |
672 | } | |
673 | ||
c118080b BV |
674 | SR_PRIV int dso_get_capturestate(const struct sr_dev_inst *sdi, |
675 | uint8_t *capturestate, uint32_t *trigger_offset) | |
3b533202 | 676 | { |
c118080b | 677 | struct sr_usb_dev_inst *usb; |
e05a174b BV |
678 | int ret, tmp, i; |
679 | unsigned int bitvalue, toff; | |
3b533202 BV |
680 | uint8_t cmdstring[2], inbuf[512]; |
681 | ||
e98b7f1b | 682 | sr_dbg("Sending CMD_GET_CAPTURESTATE."); |
3b533202 | 683 | |
c118080b BV |
684 | usb = sdi->conn; |
685 | ||
3b533202 BV |
686 | cmdstring[0] = CMD_GET_CAPTURESTATE; |
687 | cmdstring[1] = 0; | |
688 | ||
c118080b | 689 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
690 | sr_dbg("Failed to send get_capturestate command: %s.", |
691 | libusb_error_name(ret)); | |
6e6eeff4 | 692 | return SR_ERR; |
3b533202 BV |
693 | } |
694 | ||
c118080b | 695 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_IN, |
3b533202 | 696 | inbuf, 512, &tmp, 100)) != 0) { |
d4928d71 PS |
697 | sr_dbg("Failed to get capturestate: %s.", |
698 | libusb_error_name(ret)); | |
6e6eeff4 | 699 | return SR_ERR; |
3b533202 | 700 | } |
6e6eeff4 | 701 | *capturestate = inbuf[0]; |
e05a174b BV |
702 | toff = (inbuf[1] << 16) | (inbuf[3] << 8) | inbuf[2]; |
703 | ||
e98b7f1b UH |
704 | /* |
705 | * This conversion comes from the openhantek project. | |
e05a174b BV |
706 | * Each set bit in the 24-bit value inverts all bits with a lower |
707 | * value. No idea why the device reports the trigger point this way. | |
708 | */ | |
709 | bitvalue = 1; | |
710 | for (i = 0; i < 24; i++) { | |
e749a8cb | 711 | /* Each set bit inverts all bits with a lower value. */ |
e05a174b BV |
712 | if(toff & bitvalue) |
713 | toff ^= bitvalue - 1; | |
714 | bitvalue <<= 1; | |
715 | } | |
716 | *trigger_offset = toff; | |
3b533202 | 717 | |
6e6eeff4 | 718 | return SR_OK; |
3b533202 BV |
719 | } |
720 | ||
c118080b | 721 | SR_PRIV int dso_capture_start(const struct sr_dev_inst *sdi) |
3b533202 BV |
722 | { |
723 | int ret; | |
724 | uint8_t cmdstring[2]; | |
725 | ||
e98b7f1b | 726 | sr_dbg("Sending CMD_CAPTURE_START."); |
3b533202 BV |
727 | |
728 | cmdstring[0] = CMD_CAPTURE_START; | |
729 | cmdstring[1] = 0; | |
730 | ||
c118080b | 731 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
732 | sr_err("Failed to send capture_start command: %s.", |
733 | libusb_error_name(ret)); | |
3b533202 BV |
734 | return SR_ERR; |
735 | } | |
736 | ||
737 | return SR_OK; | |
738 | } | |
739 | ||
69e19dd7 BV |
740 | SR_PRIV int dso_get_channeldata(const struct sr_dev_inst *sdi, |
741 | libusb_transfer_cb_fn cb) | |
3b533202 | 742 | { |
69e19dd7 | 743 | struct dev_context *devc; |
c118080b | 744 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
745 | struct libusb_transfer *transfer; |
746 | int num_transfers, ret, i; | |
747 | uint8_t cmdstring[2]; | |
748 | unsigned char *buf; | |
749 | ||
e98b7f1b | 750 | sr_dbg("Sending CMD_GET_CHANNELDATA."); |
3b533202 | 751 | |
c118080b BV |
752 | devc = sdi->priv; |
753 | usb = sdi->conn; | |
754 | ||
3b533202 BV |
755 | cmdstring[0] = CMD_GET_CHANNELDATA; |
756 | cmdstring[1] = 0; | |
757 | ||
c118080b | 758 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
759 | sr_err("Failed to get channel data: %s.", |
760 | libusb_error_name(ret)); | |
3b533202 BV |
761 | return SR_ERR; |
762 | } | |
763 | ||
e98b7f1b UH |
764 | /* TODO: DSO-2xxx only. */ |
765 | num_transfers = devc->framesize * | |
766 | sizeof(unsigned short) / devc->epin_maxpacketsize; | |
767 | sr_dbg("Queueing up %d transfers.", num_transfers); | |
3b533202 | 768 | for (i = 0; i < num_transfers; i++) { |
269971dd | 769 | if (!(buf = g_try_malloc(devc->epin_maxpacketsize))) { |
e98b7f1b | 770 | sr_err("Failed to malloc USB endpoint buffer."); |
3b533202 BV |
771 | return SR_ERR_MALLOC; |
772 | } | |
773 | transfer = libusb_alloc_transfer(0); | |
c118080b | 774 | libusb_fill_bulk_transfer(transfer, usb->devhdl, DSO_EP_IN, buf, |
69e19dd7 | 775 | devc->epin_maxpacketsize, cb, (void *)sdi, 40); |
3b533202 | 776 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
d4928d71 PS |
777 | sr_err("Failed to submit transfer: %s.", |
778 | libusb_error_name(ret)); | |
3b533202 BV |
779 | /* TODO: Free them all. */ |
780 | libusb_free_transfer(transfer); | |
781 | g_free(buf); | |
782 | return SR_ERR; | |
783 | } | |
784 | } | |
785 | ||
786 | return SR_OK; | |
787 | } |