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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 | ||
d87c1766 | 244 | static int dso_set_trigger_samplerate(const struct sr_dev_inst *sdi) |
3b533202 | 245 | { |
c118080b BV |
246 | struct dev_context *devc; |
247 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
248 | int ret, tmp; |
249 | uint8_t cmdstring[12]; | |
3b533202 | 250 | uint16_t timebase_small[] = { 0xffff, 0xfffc, 0xfff7, 0xffe8, 0xffce, |
e98b7f1b | 251 | 0xff9c, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79, 0xd8f1 }; |
3b533202 | 252 | uint16_t timebase_large[] = { 0xffff, 0x0000, 0xfffc, 0xfff7, 0xffe8, |
e98b7f1b | 253 | 0xffce, 0xff9d, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79 }; |
3b533202 | 254 | |
e98b7f1b | 255 | sr_dbg("Preparing CMD_SET_TRIGGER_SAMPLERATE."); |
3b533202 | 256 | |
c118080b BV |
257 | devc = sdi->priv; |
258 | usb = sdi->conn; | |
259 | ||
3b533202 BV |
260 | memset(cmdstring, 0, sizeof(cmdstring)); |
261 | /* Command */ | |
262 | cmdstring[0] = CMD_SET_TRIGGER_SAMPLERATE; | |
263 | ||
264 | /* Trigger source */ | |
e98b7f1b | 265 | sr_dbg("Trigger source %s.", devc->triggersource); |
269971dd | 266 | if (!strcmp("CH2", devc->triggersource)) |
a370ef19 | 267 | tmp = 0; |
269971dd | 268 | else if (!strcmp("CH1", devc->triggersource)) |
a370ef19 | 269 | tmp = 1; |
269971dd | 270 | else if (!strcmp("EXT", devc->triggersource)) |
a370ef19 BV |
271 | tmp = 2; |
272 | else { | |
e98b7f1b | 273 | sr_err("Invalid trigger source: '%s'.", devc->triggersource); |
a370ef19 BV |
274 | return SR_ERR_ARG; |
275 | } | |
276 | cmdstring[2] = tmp; | |
3b533202 BV |
277 | |
278 | /* Frame size */ | |
e98b7f1b | 279 | sr_dbg("Frame size: %d.", devc->framesize); |
269971dd | 280 | cmdstring[2] |= (devc->framesize == FRAMESIZE_SMALL ? 0x01 : 0x02) << 2; |
bc79e906 BV |
281 | |
282 | /* Timebase fast */ | |
e98b7f1b | 283 | sr_dbg("Time base index: %d.", devc->timebase); |
034accb5 | 284 | if (devc->framesize == FRAMESIZE_SMALL) { |
269971dd | 285 | if (devc->timebase < TIME_20us) |
bc79e906 | 286 | tmp = 0; |
269971dd | 287 | else if (devc->timebase == TIME_20us) |
bc79e906 | 288 | tmp = 1; |
269971dd | 289 | else if (devc->timebase == TIME_40us) |
bc79e906 | 290 | tmp = 2; |
269971dd | 291 | else if (devc->timebase == TIME_100us) |
bc79e906 | 292 | tmp = 3; |
269971dd | 293 | else if (devc->timebase >= TIME_200us) |
bc79e906 | 294 | tmp = 4; |
034accb5 | 295 | } else { |
269971dd | 296 | if (devc->timebase < TIME_40us) { |
e98b7f1b | 297 | sr_err("Timebase < 40us only supported with 10K buffer."); |
bc79e906 BV |
298 | return SR_ERR_ARG; |
299 | } | |
269971dd | 300 | else if (devc->timebase == TIME_40us) |
bc79e906 | 301 | tmp = 0; |
269971dd | 302 | else if (devc->timebase == TIME_100us) |
bc79e906 | 303 | tmp = 2; |
269971dd | 304 | else if (devc->timebase == TIME_200us) |
bc79e906 | 305 | tmp = 3; |
269971dd | 306 | else if (devc->timebase >= TIME_400us) |
bc79e906 | 307 | tmp = 4; |
3b533202 | 308 | } |
bc79e906 BV |
309 | cmdstring[2] |= (tmp & 0x07) << 5; |
310 | ||
311 | /* Enabled channels: 00=CH1 01=CH2 10=both */ | |
417412c8 AJ |
312 | sr_dbg("Channels CH1=%d CH2=%d", devc->ch_enabled[0], devc->ch_enabled[1]); |
313 | tmp = (((devc->ch_enabled[1] ? 1 : 0) << 1) + (devc->ch_enabled[0] ? 1 : 0)) - 1; | |
6e71ef3b | 314 | cmdstring[3] = tmp; |
3b533202 | 315 | |
bc79e906 | 316 | /* Fast rates channel */ |
e98b7f1b | 317 | /* TODO: Is this right? */ |
269971dd | 318 | tmp = devc->timebase < TIME_10us ? 1 : 0; |
bc79e906 | 319 | cmdstring[3] |= tmp << 2; |
3b533202 | 320 | |
bc79e906 | 321 | /* Trigger slope: 0=positive 1=negative */ |
e98b7f1b UH |
322 | /* TODO: Does this work? */ |
323 | sr_dbg("Trigger slope: %d.", devc->triggerslope); | |
269971dd | 324 | cmdstring[3] |= (devc->triggerslope == SLOPE_NEGATIVE ? 1 : 0) << 3; |
3b533202 | 325 | |
a370ef19 | 326 | /* Timebase slow */ |
269971dd | 327 | if (devc->timebase < TIME_100us) |
3b533202 | 328 | tmp = 0; |
269971dd | 329 | else if (devc->timebase > TIME_400ms) |
3b533202 BV |
330 | tmp = 0xffed; |
331 | else { | |
269971dd BV |
332 | if (devc->framesize == FRAMESIZE_SMALL) |
333 | tmp = timebase_small[devc->timebase - 3]; | |
3b533202 | 334 | else |
269971dd | 335 | tmp = timebase_large[devc->timebase - 3]; |
3b533202 | 336 | } |
bc79e906 BV |
337 | cmdstring[4] = tmp & 0xff; |
338 | cmdstring[5] = (tmp >> 8) & 0xff; | |
339 | ||
340 | /* Horizontal trigger position */ | |
e98b7f1b | 341 | sr_dbg("Trigger position: %3.2f.", devc->triggerposition); |
269971dd | 342 | tmp = 0x77fff + 0x8000 * devc->triggerposition; |
3b533202 BV |
343 | cmdstring[6] = tmp & 0xff; |
344 | cmdstring[7] = (tmp >> 8) & 0xff; | |
3b533202 BV |
345 | cmdstring[10] = (tmp >> 16) & 0xff; |
346 | ||
c118080b | 347 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
348 | return SR_ERR; |
349 | ||
c118080b BV |
350 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
351 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
d4928d71 PS |
352 | sr_err("Failed to set trigger/samplerate: %s.", |
353 | libusb_error_name(ret)); | |
3b533202 BV |
354 | return SR_ERR; |
355 | } | |
e98b7f1b | 356 | sr_dbg("Sent CMD_SET_TRIGGER_SAMPLERATE."); |
3b533202 BV |
357 | |
358 | return SR_OK; | |
359 | } | |
360 | ||
d87c1766 | 361 | static int dso_set_filters(const struct sr_dev_inst *sdi) |
3b533202 | 362 | { |
c118080b BV |
363 | struct dev_context *devc; |
364 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
365 | int ret, tmp; |
366 | uint8_t cmdstring[8]; | |
367 | ||
e98b7f1b | 368 | sr_dbg("Preparing CMD_SET_FILTERS."); |
3b533202 | 369 | |
c118080b BV |
370 | devc = sdi->priv; |
371 | usb = sdi->conn; | |
372 | ||
3b533202 BV |
373 | memset(cmdstring, 0, sizeof(cmdstring)); |
374 | cmdstring[0] = CMD_SET_FILTERS; | |
375 | cmdstring[1] = 0x0f; | |
933defaa | 376 | if (devc->filter[0]) { |
e98b7f1b | 377 | sr_dbg("Turning on CH1 filter."); |
3b533202 | 378 | cmdstring[2] |= 0x80; |
ebb781a6 | 379 | } |
933defaa | 380 | if (devc->filter[1]) { |
e98b7f1b | 381 | sr_dbg("Turning on CH2 filter."); |
3b533202 | 382 | cmdstring[2] |= 0x40; |
ebb781a6 | 383 | } |
933defaa BV |
384 | /* |
385 | * Not supported: filtering on the trigger | |
386 | * cmdstring[2] |= 0x20; | |
387 | */ | |
3b533202 | 388 | |
c118080b | 389 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
390 | return SR_ERR; |
391 | ||
c118080b BV |
392 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
393 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 394 | sr_err("Failed to set filters: %s.", libusb_error_name(ret)); |
3b533202 BV |
395 | return SR_ERR; |
396 | } | |
e98b7f1b | 397 | sr_dbg("Sent CMD_SET_FILTERS."); |
3b533202 BV |
398 | |
399 | return SR_OK; | |
400 | } | |
401 | ||
d87c1766 | 402 | static int dso_set_voltage(const struct sr_dev_inst *sdi) |
3b533202 | 403 | { |
c118080b BV |
404 | struct dev_context *devc; |
405 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
406 | int ret, tmp; |
407 | uint8_t cmdstring[8]; | |
408 | ||
e98b7f1b | 409 | sr_dbg("Preparing CMD_SET_VOLTAGE."); |
3b533202 | 410 | |
c118080b BV |
411 | devc = sdi->priv; |
412 | usb = sdi->conn; | |
413 | ||
3b533202 BV |
414 | memset(cmdstring, 0, sizeof(cmdstring)); |
415 | cmdstring[0] = CMD_SET_VOLTAGE; | |
416 | cmdstring[1] = 0x0f; | |
313deed2 BV |
417 | cmdstring[2] = 0x30; |
418 | ||
419 | /* CH1 volts/div is encoded in bits 0-1 */ | |
933defaa BV |
420 | sr_dbg("CH1 vdiv index: %d.", devc->voltage[0]); |
421 | switch (devc->voltage[0]) { | |
313deed2 BV |
422 | case VDIV_1V: |
423 | case VDIV_100MV: | |
424 | case VDIV_10MV: | |
425 | cmdstring[2] |= 0x00; | |
426 | break; | |
427 | case VDIV_2V: | |
428 | case VDIV_200MV: | |
429 | case VDIV_20MV: | |
430 | cmdstring[2] |= 0x01; | |
431 | break; | |
432 | case VDIV_5V: | |
433 | case VDIV_500MV: | |
434 | case VDIV_50MV: | |
435 | cmdstring[2] |= 0x02; | |
436 | break; | |
437 | } | |
438 | ||
439 | /* CH2 volts/div is encoded in bits 2-3 */ | |
933defaa BV |
440 | sr_dbg("CH2 vdiv index: %d.", devc->voltage[1]); |
441 | switch (devc->voltage[1]) { | |
313deed2 BV |
442 | case VDIV_1V: |
443 | case VDIV_100MV: | |
444 | case VDIV_10MV: | |
445 | cmdstring[2] |= 0x00; | |
446 | break; | |
447 | case VDIV_2V: | |
448 | case VDIV_200MV: | |
449 | case VDIV_20MV: | |
1d97091e | 450 | cmdstring[2] |= 0x04; |
313deed2 BV |
451 | break; |
452 | case VDIV_5V: | |
453 | case VDIV_500MV: | |
454 | case VDIV_50MV: | |
1d97091e | 455 | cmdstring[2] |= 0x08; |
313deed2 BV |
456 | break; |
457 | } | |
3b533202 | 458 | |
c118080b | 459 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
460 | return SR_ERR; |
461 | ||
c118080b BV |
462 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
463 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 464 | sr_err("Failed to set voltage: %s.", libusb_error_name(ret)); |
3b533202 BV |
465 | return SR_ERR; |
466 | } | |
e98b7f1b | 467 | sr_dbg("Sent CMD_SET_VOLTAGE."); |
3b533202 BV |
468 | |
469 | return SR_OK; | |
470 | } | |
471 | ||
d87c1766 | 472 | static int dso_set_relays(const struct sr_dev_inst *sdi) |
3b533202 | 473 | { |
c118080b BV |
474 | struct dev_context *devc; |
475 | struct sr_usb_dev_inst *usb; | |
a217bcdf BV |
476 | GString *gs; |
477 | int ret, i; | |
478 | uint8_t relays[17] = { 0x00, 0x04, 0x08, 0x02, 0x20, 0x40, 0x10, 0x01, | |
3b533202 BV |
479 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
480 | ||
e98b7f1b | 481 | sr_dbg("Preparing CTRL_SETRELAYS."); |
3b533202 | 482 | |
c118080b BV |
483 | devc = sdi->priv; |
484 | usb = sdi->conn; | |
485 | ||
933defaa | 486 | if (devc->voltage[0] < VDIV_1V) |
3b533202 BV |
487 | relays[1] = ~relays[1]; |
488 | ||
933defaa | 489 | if (devc->voltage[0] < VDIV_100MV) |
3b533202 BV |
490 | relays[2] = ~relays[2]; |
491 | ||
933defaa BV |
492 | sr_dbg("CH1 coupling: %d.", devc->coupling[0]); |
493 | if (devc->coupling[0] != COUPLING_AC) | |
3b533202 BV |
494 | relays[3] = ~relays[3]; |
495 | ||
933defaa | 496 | if (devc->voltage[1] < VDIV_1V) |
3b533202 BV |
497 | relays[4] = ~relays[4]; |
498 | ||
933defaa | 499 | if (devc->voltage[1] < VDIV_100MV) |
3b533202 BV |
500 | relays[5] = ~relays[5]; |
501 | ||
933defaa BV |
502 | sr_dbg("CH2 coupling: %d.", devc->coupling[1]); |
503 | if (devc->coupling[1] != COUPLING_AC) | |
3b533202 BV |
504 | relays[6] = ~relays[6]; |
505 | ||
269971dd | 506 | if (!strcmp(devc->triggersource, "EXT")) |
3b533202 BV |
507 | relays[7] = ~relays[7]; |
508 | ||
a217bcdf BV |
509 | if (sr_log_loglevel_get() >= SR_LOG_DBG) { |
510 | gs = g_string_sized_new(128); | |
e98b7f1b | 511 | g_string_printf(gs, "Relays:"); |
a217bcdf BV |
512 | for (i = 0; i < 17; i++) |
513 | g_string_append_printf(gs, " %.2x", relays[i]); | |
cbc6f3b2 | 514 | sr_dbg("%s", gs->str); |
a217bcdf BV |
515 | g_string_free(gs, TRUE); |
516 | } | |
517 | ||
c118080b | 518 | if ((ret = libusb_control_transfer(usb->devhdl, |
3b533202 | 519 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_SETRELAYS, |
a217bcdf | 520 | 0, 0, relays, 17, 100)) != sizeof(relays)) { |
1740429d | 521 | sr_err("Failed to set relays: %s.", libusb_error_name(ret)); |
3b533202 BV |
522 | return SR_ERR; |
523 | } | |
e98b7f1b | 524 | sr_dbg("Sent CTRL_SETRELAYS."); |
3b533202 BV |
525 | |
526 | return SR_OK; | |
527 | } | |
528 | ||
d87c1766 | 529 | static int dso_set_voffsets(const struct sr_dev_inst *sdi) |
3b533202 | 530 | { |
c118080b BV |
531 | struct dev_context *devc; |
532 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
533 | int offset, ret; |
534 | uint16_t *ch_levels; | |
2715c0b8 BV |
535 | uint8_t offsets[17]; |
536 | ||
e98b7f1b | 537 | sr_dbg("Preparing CTRL_SETOFFSET."); |
2715c0b8 | 538 | |
c118080b BV |
539 | devc = sdi->priv; |
540 | usb = sdi->conn; | |
541 | ||
2715c0b8 BV |
542 | memset(offsets, 0, sizeof(offsets)); |
543 | /* Channel 1 */ | |
933defaa | 544 | ch_levels = devc->channel_levels[0][devc->voltage[0]]; |
269971dd | 545 | offset = (ch_levels[1] - ch_levels[0]) * devc->voffset_ch1 + ch_levels[0]; |
2715c0b8 BV |
546 | offsets[0] = (offset >> 8) | 0x20; |
547 | offsets[1] = offset & 0xff; | |
e98b7f1b UH |
548 | sr_dbg("CH1 offset: %3.2f (%.2x%.2x).", devc->voffset_ch1, |
549 | offsets[0], offsets[1]); | |
2715c0b8 BV |
550 | |
551 | /* Channel 2 */ | |
933defaa | 552 | ch_levels = devc->channel_levels[1][devc->voltage[1]]; |
269971dd | 553 | offset = (ch_levels[1] - ch_levels[0]) * devc->voffset_ch2 + ch_levels[0]; |
2715c0b8 BV |
554 | offsets[2] = (offset >> 8) | 0x20; |
555 | offsets[3] = offset & 0xff; | |
e98b7f1b UH |
556 | sr_dbg("CH2 offset: %3.2f (%.2x%.2x).", devc->voffset_ch2, |
557 | offsets[2], offsets[3]); | |
2715c0b8 BV |
558 | |
559 | /* Trigger */ | |
269971dd | 560 | offset = MAX_VERT_TRIGGER * devc->voffset_trigger; |
2715c0b8 BV |
561 | offsets[4] = (offset >> 8) | 0x20; |
562 | offsets[5] = offset & 0xff; | |
e98b7f1b | 563 | sr_dbg("Trigger offset: %3.2f (%.2x%.2x).", devc->voffset_trigger, |
2715c0b8 | 564 | offsets[4], offsets[5]); |
3b533202 | 565 | |
c118080b | 566 | if ((ret = libusb_control_transfer(usb->devhdl, |
3b533202 BV |
567 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_SETOFFSET, |
568 | 0, 0, offsets, sizeof(offsets), 100)) != sizeof(offsets)) { | |
1740429d | 569 | sr_err("Failed to set offsets: %s.", libusb_error_name(ret)); |
3b533202 BV |
570 | return SR_ERR; |
571 | } | |
e98b7f1b | 572 | sr_dbg("Sent CTRL_SETOFFSET."); |
3b533202 BV |
573 | |
574 | return SR_OK; | |
575 | } | |
576 | ||
c118080b | 577 | SR_PRIV int dso_enable_trigger(const struct sr_dev_inst *sdi) |
3b533202 | 578 | { |
c118080b | 579 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
580 | int ret, tmp; |
581 | uint8_t cmdstring[2]; | |
582 | ||
e98b7f1b | 583 | sr_dbg("Sending CMD_ENABLE_TRIGGER."); |
3b533202 | 584 | |
c118080b BV |
585 | usb = sdi->conn; |
586 | ||
3b533202 BV |
587 | memset(cmdstring, 0, sizeof(cmdstring)); |
588 | cmdstring[0] = CMD_ENABLE_TRIGGER; | |
589 | cmdstring[1] = 0x00; | |
590 | ||
c118080b | 591 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
592 | return SR_ERR; |
593 | ||
c118080b BV |
594 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
595 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 596 | sr_err("Failed to enable trigger: %s.", libusb_error_name(ret)); |
3b533202 BV |
597 | return SR_ERR; |
598 | } | |
599 | ||
600 | return SR_OK; | |
601 | } | |
602 | ||
c118080b | 603 | SR_PRIV int dso_force_trigger(const struct sr_dev_inst *sdi) |
3b533202 | 604 | { |
c118080b | 605 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
606 | int ret, tmp; |
607 | uint8_t cmdstring[2]; | |
608 | ||
e98b7f1b | 609 | sr_dbg("Sending CMD_FORCE_TRIGGER."); |
3b533202 | 610 | |
c118080b BV |
611 | usb = sdi->conn; |
612 | ||
3b533202 BV |
613 | memset(cmdstring, 0, sizeof(cmdstring)); |
614 | cmdstring[0] = CMD_FORCE_TRIGGER; | |
615 | cmdstring[1] = 0x00; | |
616 | ||
c118080b | 617 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
618 | return SR_ERR; |
619 | ||
c118080b BV |
620 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
621 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 622 | sr_err("Failed to force trigger: %s.", libusb_error_name(ret)); |
3b533202 BV |
623 | return SR_ERR; |
624 | } | |
625 | ||
626 | return SR_OK; | |
627 | } | |
628 | ||
c118080b | 629 | SR_PRIV int dso_init(const struct sr_dev_inst *sdi) |
3b533202 BV |
630 | { |
631 | ||
e98b7f1b | 632 | sr_dbg("Initializing DSO."); |
3b533202 | 633 | |
c118080b | 634 | if (get_channel_offsets(sdi) != SR_OK) |
3b533202 BV |
635 | return SR_ERR; |
636 | ||
c118080b | 637 | if (dso_set_trigger_samplerate(sdi) != SR_OK) |
3b533202 BV |
638 | return SR_ERR; |
639 | ||
c118080b | 640 | if (dso_set_filters(sdi) != SR_OK) |
3b533202 BV |
641 | return SR_ERR; |
642 | ||
c118080b | 643 | if (dso_set_voltage(sdi) != SR_OK) |
3b533202 BV |
644 | return SR_ERR; |
645 | ||
c118080b | 646 | if (dso_set_relays(sdi) != SR_OK) |
3b533202 BV |
647 | return SR_ERR; |
648 | ||
c118080b | 649 | if (dso_set_voffsets(sdi) != SR_OK) |
3b533202 BV |
650 | return SR_ERR; |
651 | ||
c118080b | 652 | if (dso_enable_trigger(sdi) != SR_OK) |
3b533202 BV |
653 | return SR_ERR; |
654 | ||
3b533202 BV |
655 | return SR_OK; |
656 | } | |
657 | ||
c118080b BV |
658 | SR_PRIV int dso_get_capturestate(const struct sr_dev_inst *sdi, |
659 | uint8_t *capturestate, uint32_t *trigger_offset) | |
3b533202 | 660 | { |
c118080b | 661 | struct sr_usb_dev_inst *usb; |
e05a174b BV |
662 | int ret, tmp, i; |
663 | unsigned int bitvalue, toff; | |
3b533202 BV |
664 | uint8_t cmdstring[2], inbuf[512]; |
665 | ||
e98b7f1b | 666 | sr_dbg("Sending CMD_GET_CAPTURESTATE."); |
3b533202 | 667 | |
c118080b BV |
668 | usb = sdi->conn; |
669 | ||
3b533202 BV |
670 | cmdstring[0] = CMD_GET_CAPTURESTATE; |
671 | cmdstring[1] = 0; | |
672 | ||
c118080b | 673 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
674 | sr_dbg("Failed to send get_capturestate command: %s.", |
675 | libusb_error_name(ret)); | |
6e6eeff4 | 676 | return SR_ERR; |
3b533202 BV |
677 | } |
678 | ||
c118080b | 679 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_IN, |
3b533202 | 680 | inbuf, 512, &tmp, 100)) != 0) { |
d4928d71 PS |
681 | sr_dbg("Failed to get capturestate: %s.", |
682 | libusb_error_name(ret)); | |
6e6eeff4 | 683 | return SR_ERR; |
3b533202 | 684 | } |
6e6eeff4 | 685 | *capturestate = inbuf[0]; |
e05a174b BV |
686 | toff = (inbuf[1] << 16) | (inbuf[3] << 8) | inbuf[2]; |
687 | ||
e98b7f1b UH |
688 | /* |
689 | * This conversion comes from the openhantek project. | |
e05a174b BV |
690 | * Each set bit in the 24-bit value inverts all bits with a lower |
691 | * value. No idea why the device reports the trigger point this way. | |
692 | */ | |
693 | bitvalue = 1; | |
694 | for (i = 0; i < 24; i++) { | |
e749a8cb | 695 | /* Each set bit inverts all bits with a lower value. */ |
0c5f2abc | 696 | if (toff & bitvalue) |
e05a174b BV |
697 | toff ^= bitvalue - 1; |
698 | bitvalue <<= 1; | |
699 | } | |
700 | *trigger_offset = toff; | |
3b533202 | 701 | |
6e6eeff4 | 702 | return SR_OK; |
3b533202 BV |
703 | } |
704 | ||
c118080b | 705 | SR_PRIV int dso_capture_start(const struct sr_dev_inst *sdi) |
3b533202 BV |
706 | { |
707 | int ret; | |
708 | uint8_t cmdstring[2]; | |
709 | ||
e98b7f1b | 710 | sr_dbg("Sending CMD_CAPTURE_START."); |
3b533202 BV |
711 | |
712 | cmdstring[0] = CMD_CAPTURE_START; | |
713 | cmdstring[1] = 0; | |
714 | ||
c118080b | 715 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
716 | sr_err("Failed to send capture_start command: %s.", |
717 | libusb_error_name(ret)); | |
3b533202 BV |
718 | return SR_ERR; |
719 | } | |
720 | ||
721 | return SR_OK; | |
722 | } | |
723 | ||
69e19dd7 BV |
724 | SR_PRIV int dso_get_channeldata(const struct sr_dev_inst *sdi, |
725 | libusb_transfer_cb_fn cb) | |
3b533202 | 726 | { |
69e19dd7 | 727 | struct dev_context *devc; |
c118080b | 728 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
729 | struct libusb_transfer *transfer; |
730 | int num_transfers, ret, i; | |
731 | uint8_t cmdstring[2]; | |
732 | unsigned char *buf; | |
733 | ||
e98b7f1b | 734 | sr_dbg("Sending CMD_GET_CHANNELDATA."); |
3b533202 | 735 | |
c118080b BV |
736 | devc = sdi->priv; |
737 | usb = sdi->conn; | |
738 | ||
3b533202 BV |
739 | cmdstring[0] = CMD_GET_CHANNELDATA; |
740 | cmdstring[1] = 0; | |
741 | ||
c118080b | 742 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
743 | sr_err("Failed to get channel data: %s.", |
744 | libusb_error_name(ret)); | |
3b533202 BV |
745 | return SR_ERR; |
746 | } | |
747 | ||
e98b7f1b UH |
748 | /* TODO: DSO-2xxx only. */ |
749 | num_transfers = devc->framesize * | |
750 | sizeof(unsigned short) / devc->epin_maxpacketsize; | |
751 | sr_dbg("Queueing up %d transfers.", num_transfers); | |
3b533202 | 752 | for (i = 0; i < num_transfers; i++) { |
269971dd | 753 | if (!(buf = g_try_malloc(devc->epin_maxpacketsize))) { |
e98b7f1b | 754 | sr_err("Failed to malloc USB endpoint buffer."); |
3b533202 BV |
755 | return SR_ERR_MALLOC; |
756 | } | |
757 | transfer = libusb_alloc_transfer(0); | |
c118080b | 758 | libusb_fill_bulk_transfer(transfer, usb->devhdl, DSO_EP_IN, buf, |
69e19dd7 | 759 | devc->epin_maxpacketsize, cb, (void *)sdi, 40); |
3b533202 | 760 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
d4928d71 PS |
761 | sr_err("Failed to submit transfer: %s.", |
762 | libusb_error_name(ret)); | |
3b533202 BV |
763 | /* TODO: Free them all. */ |
764 | libusb_free_transfer(transfer); | |
765 | g_free(buf); | |
766 | return SR_ERR; | |
767 | } | |
768 | } | |
769 | ||
770 | return SR_OK; | |
771 | } |