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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; | |
395206f4 SA |
116 | int err, i; |
117 | char connection_id[64]; | |
3b533202 | 118 | |
269971dd | 119 | devc = sdi->priv; |
c118080b | 120 | usb = sdi->conn; |
3b533202 BV |
121 | |
122 | if (sdi->status == SR_ST_ACTIVE) | |
123 | /* already in use */ | |
124 | return SR_ERR; | |
125 | ||
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 | ||
395206f4 SA |
138 | if ((sdi->status == SR_ST_INITIALIZING) || |
139 | (sdi->status == SR_ST_INACTIVE)) { | |
3b533202 | 140 | /* |
395206f4 | 141 | * Check device by its physical USB bus/port address. |
3b533202 | 142 | */ |
395206f4 SA |
143 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
144 | if (strcmp(sdi->connection_id, connection_id)) | |
145 | /* This is not the one. */ | |
3b533202 BV |
146 | continue; |
147 | } | |
148 | ||
c118080b BV |
149 | if (!(err = libusb_open(devlist[i], &usb->devhdl))) { |
150 | if (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 | */ | |
c118080b | 155 | 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; | |
395206f4 SA |
161 | sr_info("Opened device on %d.%d (logical) / " |
162 | "%s (physical) interface %d.", | |
163 | usb->bus, usb->address, | |
164 | sdi->connection_id, USB_INTERFACE); | |
3b533202 BV |
165 | } |
166 | } else { | |
d4928d71 PS |
167 | sr_err("Failed to open device: %s.", |
168 | libusb_error_name(err)); | |
3b533202 BV |
169 | } |
170 | ||
e98b7f1b | 171 | /* If we made it here, we handled the device (somehow). */ |
3b533202 BV |
172 | break; |
173 | } | |
174 | libusb_free_device_list(devlist, 1); | |
175 | ||
176 | if (sdi->status != SR_ST_ACTIVE) | |
177 | return SR_ERR; | |
178 | ||
179 | return SR_OK; | |
180 | } | |
181 | ||
182 | SR_PRIV void dso_close(struct sr_dev_inst *sdi) | |
183 | { | |
c118080b | 184 | struct sr_usb_dev_inst *usb; |
3b533202 | 185 | |
c118080b | 186 | usb = sdi->conn; |
3b533202 | 187 | |
c118080b | 188 | if (usb->devhdl == NULL) |
3b533202 BV |
189 | return; |
190 | ||
395206f4 SA |
191 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", |
192 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
c118080b BV |
193 | libusb_release_interface(usb->devhdl, USB_INTERFACE); |
194 | libusb_close(usb->devhdl); | |
195 | usb->devhdl = NULL; | |
3b533202 BV |
196 | sdi->status = SR_ST_INACTIVE; |
197 | ||
198 | } | |
199 | ||
c118080b | 200 | static int get_channel_offsets(const struct sr_dev_inst *sdi) |
3b533202 | 201 | { |
c118080b BV |
202 | struct dev_context *devc; |
203 | struct sr_usb_dev_inst *usb; | |
2715c0b8 BV |
204 | GString *gs; |
205 | int chan, v, ret; | |
3b533202 | 206 | |
e98b7f1b | 207 | sr_dbg("Getting channel offsets."); |
3b533202 | 208 | |
c118080b BV |
209 | devc = sdi->priv; |
210 | usb = sdi->conn; | |
211 | ||
212 | ret = libusb_control_transfer(usb->devhdl, | |
3b533202 BV |
213 | LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_VENDOR, |
214 | CTRL_READ_EEPROM, EEPROM_CHANNEL_OFFSETS, 0, | |
269971dd BV |
215 | (unsigned char *)&devc->channel_levels, |
216 | sizeof(devc->channel_levels), 200); | |
217 | if (ret != sizeof(devc->channel_levels)) { | |
d4928d71 PS |
218 | sr_err("Failed to get channel offsets: %s.", |
219 | libusb_error_name(ret)); | |
3b533202 BV |
220 | return SR_ERR; |
221 | } | |
222 | ||
2715c0b8 BV |
223 | /* Comes in as 16-bit numbers with the second byte always 0 on |
224 | * the DSO-2090. Guessing this is supposed to be big-endian, | |
225 | * since that's how voltage offsets are submitted back to the DSO. | |
226 | * Convert to host order now, so we can use them natively. | |
227 | */ | |
228 | for (chan = 0; chan < 2; chan++) { | |
229 | for (v = 0; v < 9; v++) { | |
e98b7f1b UH |
230 | devc->channel_levels[chan][v][0] = |
231 | g_ntohs(devc->channel_levels[chan][v][0]); | |
232 | devc->channel_levels[chan][v][1] = | |
233 | g_ntohs(devc->channel_levels[chan][v][1]); | |
2715c0b8 BV |
234 | } |
235 | } | |
236 | ||
237 | if (sr_log_loglevel_get() >= SR_LOG_DBG) { | |
238 | gs = g_string_sized_new(128); | |
239 | for (chan = 0; chan < 2; chan++) { | |
e98b7f1b | 240 | g_string_printf(gs, "CH%d:", chan + 1); |
2715c0b8 BV |
241 | for (v = 0; v < 9; v++) { |
242 | g_string_append_printf(gs, " %.4x-%.4x", | |
e98b7f1b UH |
243 | devc->channel_levels[chan][v][0], |
244 | devc->channel_levels[chan][v][1]); | |
2715c0b8 | 245 | } |
cbc6f3b2 | 246 | sr_dbg("%s", gs->str); |
2715c0b8 BV |
247 | } |
248 | g_string_free(gs, TRUE); | |
249 | } | |
250 | ||
3b533202 BV |
251 | return SR_OK; |
252 | } | |
253 | ||
d87c1766 | 254 | static int dso_set_trigger_samplerate(const struct sr_dev_inst *sdi) |
3b533202 | 255 | { |
c118080b BV |
256 | struct dev_context *devc; |
257 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
258 | int ret, tmp; |
259 | uint8_t cmdstring[12]; | |
3b533202 | 260 | uint16_t timebase_small[] = { 0xffff, 0xfffc, 0xfff7, 0xffe8, 0xffce, |
e98b7f1b | 261 | 0xff9c, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79, 0xd8f1 }; |
3b533202 | 262 | uint16_t timebase_large[] = { 0xffff, 0x0000, 0xfffc, 0xfff7, 0xffe8, |
e98b7f1b | 263 | 0xffce, 0xff9d, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79 }; |
3b533202 | 264 | |
e98b7f1b | 265 | sr_dbg("Preparing CMD_SET_TRIGGER_SAMPLERATE."); |
3b533202 | 266 | |
c118080b BV |
267 | devc = sdi->priv; |
268 | usb = sdi->conn; | |
269 | ||
3b533202 BV |
270 | memset(cmdstring, 0, sizeof(cmdstring)); |
271 | /* Command */ | |
272 | cmdstring[0] = CMD_SET_TRIGGER_SAMPLERATE; | |
273 | ||
274 | /* Trigger source */ | |
e98b7f1b | 275 | sr_dbg("Trigger source %s.", devc->triggersource); |
269971dd | 276 | if (!strcmp("CH2", devc->triggersource)) |
a370ef19 | 277 | tmp = 0; |
269971dd | 278 | else if (!strcmp("CH1", devc->triggersource)) |
a370ef19 | 279 | tmp = 1; |
269971dd | 280 | else if (!strcmp("EXT", devc->triggersource)) |
a370ef19 BV |
281 | tmp = 2; |
282 | else { | |
e98b7f1b | 283 | sr_err("Invalid trigger source: '%s'.", devc->triggersource); |
a370ef19 BV |
284 | return SR_ERR_ARG; |
285 | } | |
286 | cmdstring[2] = tmp; | |
3b533202 BV |
287 | |
288 | /* Frame size */ | |
e98b7f1b | 289 | sr_dbg("Frame size: %d.", devc->framesize); |
269971dd | 290 | cmdstring[2] |= (devc->framesize == FRAMESIZE_SMALL ? 0x01 : 0x02) << 2; |
bc79e906 BV |
291 | |
292 | /* Timebase fast */ | |
e98b7f1b | 293 | sr_dbg("Time base index: %d.", devc->timebase); |
034accb5 | 294 | if (devc->framesize == FRAMESIZE_SMALL) { |
269971dd | 295 | if (devc->timebase < TIME_20us) |
bc79e906 | 296 | tmp = 0; |
269971dd | 297 | else if (devc->timebase == TIME_20us) |
bc79e906 | 298 | tmp = 1; |
269971dd | 299 | else if (devc->timebase == TIME_40us) |
bc79e906 | 300 | tmp = 2; |
269971dd | 301 | else if (devc->timebase == TIME_100us) |
bc79e906 | 302 | tmp = 3; |
269971dd | 303 | else if (devc->timebase >= TIME_200us) |
bc79e906 | 304 | tmp = 4; |
034accb5 | 305 | } else { |
269971dd | 306 | if (devc->timebase < TIME_40us) { |
e98b7f1b | 307 | sr_err("Timebase < 40us only supported with 10K buffer."); |
bc79e906 BV |
308 | return SR_ERR_ARG; |
309 | } | |
269971dd | 310 | else if (devc->timebase == TIME_40us) |
bc79e906 | 311 | tmp = 0; |
269971dd | 312 | else if (devc->timebase == TIME_100us) |
bc79e906 | 313 | tmp = 2; |
269971dd | 314 | else if (devc->timebase == TIME_200us) |
bc79e906 | 315 | tmp = 3; |
269971dd | 316 | else if (devc->timebase >= TIME_400us) |
bc79e906 | 317 | tmp = 4; |
3b533202 | 318 | } |
bc79e906 BV |
319 | cmdstring[2] |= (tmp & 0x07) << 5; |
320 | ||
321 | /* Enabled channels: 00=CH1 01=CH2 10=both */ | |
e98b7f1b | 322 | sr_dbg("Channels CH1=%d CH2=%d", devc->ch1_enabled, devc->ch2_enabled); |
269971dd | 323 | tmp = (((devc->ch2_enabled ? 1 : 0) << 1) + (devc->ch1_enabled ? 1 : 0)) - 1; |
6e71ef3b | 324 | cmdstring[3] = tmp; |
3b533202 | 325 | |
bc79e906 | 326 | /* Fast rates channel */ |
e98b7f1b | 327 | /* TODO: Is this right? */ |
269971dd | 328 | tmp = devc->timebase < TIME_10us ? 1 : 0; |
bc79e906 | 329 | cmdstring[3] |= tmp << 2; |
3b533202 | 330 | |
bc79e906 | 331 | /* Trigger slope: 0=positive 1=negative */ |
e98b7f1b UH |
332 | /* TODO: Does this work? */ |
333 | sr_dbg("Trigger slope: %d.", devc->triggerslope); | |
269971dd | 334 | cmdstring[3] |= (devc->triggerslope == SLOPE_NEGATIVE ? 1 : 0) << 3; |
3b533202 | 335 | |
a370ef19 | 336 | /* Timebase slow */ |
269971dd | 337 | if (devc->timebase < TIME_100us) |
3b533202 | 338 | tmp = 0; |
269971dd | 339 | else if (devc->timebase > TIME_400ms) |
3b533202 BV |
340 | tmp = 0xffed; |
341 | else { | |
269971dd BV |
342 | if (devc->framesize == FRAMESIZE_SMALL) |
343 | tmp = timebase_small[devc->timebase - 3]; | |
3b533202 | 344 | else |
269971dd | 345 | tmp = timebase_large[devc->timebase - 3]; |
3b533202 | 346 | } |
bc79e906 BV |
347 | cmdstring[4] = tmp & 0xff; |
348 | cmdstring[5] = (tmp >> 8) & 0xff; | |
349 | ||
350 | /* Horizontal trigger position */ | |
e98b7f1b | 351 | sr_dbg("Trigger position: %3.2f.", devc->triggerposition); |
269971dd | 352 | tmp = 0x77fff + 0x8000 * devc->triggerposition; |
3b533202 BV |
353 | cmdstring[6] = tmp & 0xff; |
354 | cmdstring[7] = (tmp >> 8) & 0xff; | |
3b533202 BV |
355 | cmdstring[10] = (tmp >> 16) & 0xff; |
356 | ||
c118080b | 357 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
358 | return SR_ERR; |
359 | ||
c118080b BV |
360 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
361 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
d4928d71 PS |
362 | sr_err("Failed to set trigger/samplerate: %s.", |
363 | libusb_error_name(ret)); | |
3b533202 BV |
364 | return SR_ERR; |
365 | } | |
e98b7f1b | 366 | sr_dbg("Sent CMD_SET_TRIGGER_SAMPLERATE."); |
3b533202 BV |
367 | |
368 | return SR_OK; | |
369 | } | |
370 | ||
d87c1766 | 371 | static int dso_set_filters(const struct sr_dev_inst *sdi) |
3b533202 | 372 | { |
c118080b BV |
373 | struct dev_context *devc; |
374 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
375 | int ret, tmp; |
376 | uint8_t cmdstring[8]; | |
377 | ||
e98b7f1b | 378 | sr_dbg("Preparing CMD_SET_FILTERS."); |
3b533202 | 379 | |
c118080b BV |
380 | devc = sdi->priv; |
381 | usb = sdi->conn; | |
382 | ||
3b533202 BV |
383 | memset(cmdstring, 0, sizeof(cmdstring)); |
384 | cmdstring[0] = CMD_SET_FILTERS; | |
385 | cmdstring[1] = 0x0f; | |
269971dd | 386 | if (devc->filter_ch1) { |
e98b7f1b | 387 | sr_dbg("Turning on CH1 filter."); |
3b533202 | 388 | cmdstring[2] |= 0x80; |
ebb781a6 | 389 | } |
269971dd | 390 | if (devc->filter_ch2) { |
e98b7f1b | 391 | sr_dbg("Turning on CH2 filter."); |
3b533202 | 392 | cmdstring[2] |= 0x40; |
ebb781a6 | 393 | } |
269971dd | 394 | if (devc->filter_trigger) { |
ebb781a6 | 395 | /* TODO: supported on the DSO-2090? */ |
e98b7f1b | 396 | sr_dbg("Turning on trigger filter."); |
3b533202 | 397 | cmdstring[2] |= 0x20; |
ebb781a6 | 398 | } |
3b533202 | 399 | |
c118080b | 400 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
401 | return SR_ERR; |
402 | ||
c118080b BV |
403 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
404 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 405 | sr_err("Failed to set filters: %s.", libusb_error_name(ret)); |
3b533202 BV |
406 | return SR_ERR; |
407 | } | |
e98b7f1b | 408 | sr_dbg("Sent CMD_SET_FILTERS."); |
3b533202 BV |
409 | |
410 | return SR_OK; | |
411 | } | |
412 | ||
d87c1766 | 413 | static int dso_set_voltage(const struct sr_dev_inst *sdi) |
3b533202 | 414 | { |
c118080b BV |
415 | struct dev_context *devc; |
416 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
417 | int ret, tmp; |
418 | uint8_t cmdstring[8]; | |
419 | ||
e98b7f1b | 420 | sr_dbg("Preparing CMD_SET_VOLTAGE."); |
3b533202 | 421 | |
c118080b BV |
422 | devc = sdi->priv; |
423 | usb = sdi->conn; | |
424 | ||
3b533202 BV |
425 | memset(cmdstring, 0, sizeof(cmdstring)); |
426 | cmdstring[0] = CMD_SET_VOLTAGE; | |
427 | cmdstring[1] = 0x0f; | |
313deed2 BV |
428 | cmdstring[2] = 0x30; |
429 | ||
430 | /* CH1 volts/div is encoded in bits 0-1 */ | |
e98b7f1b | 431 | sr_dbg("CH1 vdiv index: %d.", devc->voltage_ch1); |
269971dd | 432 | switch (devc->voltage_ch1) { |
313deed2 BV |
433 | case VDIV_1V: |
434 | case VDIV_100MV: | |
435 | case VDIV_10MV: | |
436 | cmdstring[2] |= 0x00; | |
437 | break; | |
438 | case VDIV_2V: | |
439 | case VDIV_200MV: | |
440 | case VDIV_20MV: | |
441 | cmdstring[2] |= 0x01; | |
442 | break; | |
443 | case VDIV_5V: | |
444 | case VDIV_500MV: | |
445 | case VDIV_50MV: | |
446 | cmdstring[2] |= 0x02; | |
447 | break; | |
448 | } | |
449 | ||
450 | /* CH2 volts/div is encoded in bits 2-3 */ | |
e98b7f1b | 451 | sr_dbg("CH2 vdiv index: %d.", devc->voltage_ch2); |
269971dd | 452 | switch (devc->voltage_ch2) { |
313deed2 BV |
453 | case VDIV_1V: |
454 | case VDIV_100MV: | |
455 | case VDIV_10MV: | |
456 | cmdstring[2] |= 0x00; | |
457 | break; | |
458 | case VDIV_2V: | |
459 | case VDIV_200MV: | |
460 | case VDIV_20MV: | |
1d97091e | 461 | cmdstring[2] |= 0x04; |
313deed2 BV |
462 | break; |
463 | case VDIV_5V: | |
464 | case VDIV_500MV: | |
465 | case VDIV_50MV: | |
1d97091e | 466 | cmdstring[2] |= 0x08; |
313deed2 BV |
467 | break; |
468 | } | |
3b533202 | 469 | |
c118080b | 470 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
471 | return SR_ERR; |
472 | ||
c118080b BV |
473 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
474 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 475 | sr_err("Failed to set voltage: %s.", libusb_error_name(ret)); |
3b533202 BV |
476 | return SR_ERR; |
477 | } | |
e98b7f1b | 478 | sr_dbg("Sent CMD_SET_VOLTAGE."); |
3b533202 BV |
479 | |
480 | return SR_OK; | |
481 | } | |
482 | ||
d87c1766 | 483 | static int dso_set_relays(const struct sr_dev_inst *sdi) |
3b533202 | 484 | { |
c118080b BV |
485 | struct dev_context *devc; |
486 | struct sr_usb_dev_inst *usb; | |
a217bcdf BV |
487 | GString *gs; |
488 | int ret, i; | |
489 | uint8_t relays[17] = { 0x00, 0x04, 0x08, 0x02, 0x20, 0x40, 0x10, 0x01, | |
3b533202 BV |
490 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
491 | ||
e98b7f1b | 492 | sr_dbg("Preparing CTRL_SETRELAYS."); |
3b533202 | 493 | |
c118080b BV |
494 | devc = sdi->priv; |
495 | usb = sdi->conn; | |
496 | ||
269971dd | 497 | if (devc->voltage_ch1 < VDIV_1V) |
3b533202 BV |
498 | relays[1] = ~relays[1]; |
499 | ||
269971dd | 500 | if (devc->voltage_ch1 < VDIV_100MV) |
3b533202 BV |
501 | relays[2] = ~relays[2]; |
502 | ||
e98b7f1b | 503 | sr_dbg("CH1 coupling: %d.", devc->coupling_ch1); |
269971dd | 504 | if (devc->coupling_ch1 != COUPLING_AC) |
3b533202 BV |
505 | relays[3] = ~relays[3]; |
506 | ||
269971dd | 507 | if (devc->voltage_ch2 < VDIV_1V) |
3b533202 BV |
508 | relays[4] = ~relays[4]; |
509 | ||
269971dd | 510 | if (devc->voltage_ch2 < VDIV_100MV) |
3b533202 BV |
511 | relays[5] = ~relays[5]; |
512 | ||
e98b7f1b | 513 | sr_dbg("CH2 coupling: %d.", devc->coupling_ch1); |
269971dd | 514 | if (devc->coupling_ch2 != COUPLING_AC) |
3b533202 BV |
515 | relays[6] = ~relays[6]; |
516 | ||
269971dd | 517 | if (!strcmp(devc->triggersource, "EXT")) |
3b533202 BV |
518 | relays[7] = ~relays[7]; |
519 | ||
a217bcdf BV |
520 | if (sr_log_loglevel_get() >= SR_LOG_DBG) { |
521 | gs = g_string_sized_new(128); | |
e98b7f1b | 522 | g_string_printf(gs, "Relays:"); |
a217bcdf BV |
523 | for (i = 0; i < 17; i++) |
524 | g_string_append_printf(gs, " %.2x", relays[i]); | |
cbc6f3b2 | 525 | sr_dbg("%s", gs->str); |
a217bcdf BV |
526 | g_string_free(gs, TRUE); |
527 | } | |
528 | ||
c118080b | 529 | if ((ret = libusb_control_transfer(usb->devhdl, |
3b533202 | 530 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_SETRELAYS, |
a217bcdf | 531 | 0, 0, relays, 17, 100)) != sizeof(relays)) { |
1740429d | 532 | sr_err("Failed to set relays: %s.", libusb_error_name(ret)); |
3b533202 BV |
533 | return SR_ERR; |
534 | } | |
e98b7f1b | 535 | sr_dbg("Sent CTRL_SETRELAYS."); |
3b533202 BV |
536 | |
537 | return SR_OK; | |
538 | } | |
539 | ||
d87c1766 | 540 | static int dso_set_voffsets(const struct sr_dev_inst *sdi) |
3b533202 | 541 | { |
c118080b BV |
542 | struct dev_context *devc; |
543 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
544 | int offset, ret; |
545 | uint16_t *ch_levels; | |
2715c0b8 BV |
546 | uint8_t offsets[17]; |
547 | ||
e98b7f1b | 548 | sr_dbg("Preparing CTRL_SETOFFSET."); |
2715c0b8 | 549 | |
c118080b BV |
550 | devc = sdi->priv; |
551 | usb = sdi->conn; | |
552 | ||
2715c0b8 BV |
553 | memset(offsets, 0, sizeof(offsets)); |
554 | /* Channel 1 */ | |
269971dd BV |
555 | ch_levels = devc->channel_levels[0][devc->voltage_ch1]; |
556 | offset = (ch_levels[1] - ch_levels[0]) * devc->voffset_ch1 + ch_levels[0]; | |
2715c0b8 BV |
557 | offsets[0] = (offset >> 8) | 0x20; |
558 | offsets[1] = offset & 0xff; | |
e98b7f1b UH |
559 | sr_dbg("CH1 offset: %3.2f (%.2x%.2x).", devc->voffset_ch1, |
560 | offsets[0], offsets[1]); | |
2715c0b8 BV |
561 | |
562 | /* Channel 2 */ | |
269971dd BV |
563 | ch_levels = devc->channel_levels[1][devc->voltage_ch2]; |
564 | offset = (ch_levels[1] - ch_levels[0]) * devc->voffset_ch2 + ch_levels[0]; | |
2715c0b8 BV |
565 | offsets[2] = (offset >> 8) | 0x20; |
566 | offsets[3] = offset & 0xff; | |
e98b7f1b UH |
567 | sr_dbg("CH2 offset: %3.2f (%.2x%.2x).", devc->voffset_ch2, |
568 | offsets[2], offsets[3]); | |
2715c0b8 BV |
569 | |
570 | /* Trigger */ | |
269971dd | 571 | offset = MAX_VERT_TRIGGER * devc->voffset_trigger; |
2715c0b8 BV |
572 | offsets[4] = (offset >> 8) | 0x20; |
573 | offsets[5] = offset & 0xff; | |
e98b7f1b | 574 | sr_dbg("Trigger offset: %3.2f (%.2x%.2x).", devc->voffset_trigger, |
2715c0b8 | 575 | offsets[4], offsets[5]); |
3b533202 | 576 | |
c118080b | 577 | if ((ret = libusb_control_transfer(usb->devhdl, |
3b533202 BV |
578 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_SETOFFSET, |
579 | 0, 0, offsets, sizeof(offsets), 100)) != sizeof(offsets)) { | |
1740429d | 580 | sr_err("Failed to set offsets: %s.", libusb_error_name(ret)); |
3b533202 BV |
581 | return SR_ERR; |
582 | } | |
e98b7f1b | 583 | sr_dbg("Sent CTRL_SETOFFSET."); |
3b533202 BV |
584 | |
585 | return SR_OK; | |
586 | } | |
587 | ||
c118080b | 588 | SR_PRIV int dso_enable_trigger(const struct sr_dev_inst *sdi) |
3b533202 | 589 | { |
c118080b | 590 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
591 | int ret, tmp; |
592 | uint8_t cmdstring[2]; | |
593 | ||
e98b7f1b | 594 | sr_dbg("Sending CMD_ENABLE_TRIGGER."); |
3b533202 | 595 | |
c118080b BV |
596 | usb = sdi->conn; |
597 | ||
3b533202 BV |
598 | memset(cmdstring, 0, sizeof(cmdstring)); |
599 | cmdstring[0] = CMD_ENABLE_TRIGGER; | |
600 | cmdstring[1] = 0x00; | |
601 | ||
c118080b | 602 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
603 | return SR_ERR; |
604 | ||
c118080b BV |
605 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
606 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 607 | sr_err("Failed to enable trigger: %s.", libusb_error_name(ret)); |
3b533202 BV |
608 | return SR_ERR; |
609 | } | |
610 | ||
611 | return SR_OK; | |
612 | } | |
613 | ||
c118080b | 614 | SR_PRIV int dso_force_trigger(const struct sr_dev_inst *sdi) |
3b533202 | 615 | { |
c118080b | 616 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
617 | int ret, tmp; |
618 | uint8_t cmdstring[2]; | |
619 | ||
e98b7f1b | 620 | sr_dbg("Sending CMD_FORCE_TRIGGER."); |
3b533202 | 621 | |
c118080b BV |
622 | usb = sdi->conn; |
623 | ||
3b533202 BV |
624 | memset(cmdstring, 0, sizeof(cmdstring)); |
625 | cmdstring[0] = CMD_FORCE_TRIGGER; | |
626 | cmdstring[1] = 0x00; | |
627 | ||
c118080b | 628 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
629 | return SR_ERR; |
630 | ||
c118080b BV |
631 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
632 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 633 | sr_err("Failed to force trigger: %s.", libusb_error_name(ret)); |
3b533202 BV |
634 | return SR_ERR; |
635 | } | |
636 | ||
637 | return SR_OK; | |
638 | } | |
639 | ||
c118080b | 640 | SR_PRIV int dso_init(const struct sr_dev_inst *sdi) |
3b533202 BV |
641 | { |
642 | ||
e98b7f1b | 643 | sr_dbg("Initializing DSO."); |
3b533202 | 644 | |
c118080b | 645 | if (get_channel_offsets(sdi) != SR_OK) |
3b533202 BV |
646 | return SR_ERR; |
647 | ||
c118080b | 648 | if (dso_set_trigger_samplerate(sdi) != SR_OK) |
3b533202 BV |
649 | return SR_ERR; |
650 | ||
c118080b | 651 | if (dso_set_filters(sdi) != SR_OK) |
3b533202 BV |
652 | return SR_ERR; |
653 | ||
c118080b | 654 | if (dso_set_voltage(sdi) != SR_OK) |
3b533202 BV |
655 | return SR_ERR; |
656 | ||
c118080b | 657 | if (dso_set_relays(sdi) != SR_OK) |
3b533202 BV |
658 | return SR_ERR; |
659 | ||
c118080b | 660 | if (dso_set_voffsets(sdi) != SR_OK) |
3b533202 BV |
661 | return SR_ERR; |
662 | ||
c118080b | 663 | if (dso_enable_trigger(sdi) != SR_OK) |
3b533202 BV |
664 | return SR_ERR; |
665 | ||
3b533202 BV |
666 | return SR_OK; |
667 | } | |
668 | ||
c118080b BV |
669 | SR_PRIV int dso_get_capturestate(const struct sr_dev_inst *sdi, |
670 | uint8_t *capturestate, uint32_t *trigger_offset) | |
3b533202 | 671 | { |
c118080b | 672 | struct sr_usb_dev_inst *usb; |
e05a174b BV |
673 | int ret, tmp, i; |
674 | unsigned int bitvalue, toff; | |
3b533202 BV |
675 | uint8_t cmdstring[2], inbuf[512]; |
676 | ||
e98b7f1b | 677 | sr_dbg("Sending CMD_GET_CAPTURESTATE."); |
3b533202 | 678 | |
c118080b BV |
679 | usb = sdi->conn; |
680 | ||
3b533202 BV |
681 | cmdstring[0] = CMD_GET_CAPTURESTATE; |
682 | cmdstring[1] = 0; | |
683 | ||
c118080b | 684 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
685 | sr_dbg("Failed to send get_capturestate command: %s.", |
686 | libusb_error_name(ret)); | |
6e6eeff4 | 687 | return SR_ERR; |
3b533202 BV |
688 | } |
689 | ||
c118080b | 690 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_IN, |
3b533202 | 691 | inbuf, 512, &tmp, 100)) != 0) { |
d4928d71 PS |
692 | sr_dbg("Failed to get capturestate: %s.", |
693 | libusb_error_name(ret)); | |
6e6eeff4 | 694 | return SR_ERR; |
3b533202 | 695 | } |
6e6eeff4 | 696 | *capturestate = inbuf[0]; |
e05a174b BV |
697 | toff = (inbuf[1] << 16) | (inbuf[3] << 8) | inbuf[2]; |
698 | ||
e98b7f1b UH |
699 | /* |
700 | * This conversion comes from the openhantek project. | |
e05a174b BV |
701 | * Each set bit in the 24-bit value inverts all bits with a lower |
702 | * value. No idea why the device reports the trigger point this way. | |
703 | */ | |
704 | bitvalue = 1; | |
705 | for (i = 0; i < 24; i++) { | |
e749a8cb | 706 | /* Each set bit inverts all bits with a lower value. */ |
e05a174b BV |
707 | if(toff & bitvalue) |
708 | toff ^= bitvalue - 1; | |
709 | bitvalue <<= 1; | |
710 | } | |
711 | *trigger_offset = toff; | |
3b533202 | 712 | |
6e6eeff4 | 713 | return SR_OK; |
3b533202 BV |
714 | } |
715 | ||
c118080b | 716 | SR_PRIV int dso_capture_start(const struct sr_dev_inst *sdi) |
3b533202 BV |
717 | { |
718 | int ret; | |
719 | uint8_t cmdstring[2]; | |
720 | ||
e98b7f1b | 721 | sr_dbg("Sending CMD_CAPTURE_START."); |
3b533202 BV |
722 | |
723 | cmdstring[0] = CMD_CAPTURE_START; | |
724 | cmdstring[1] = 0; | |
725 | ||
c118080b | 726 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
727 | sr_err("Failed to send capture_start command: %s.", |
728 | libusb_error_name(ret)); | |
3b533202 BV |
729 | return SR_ERR; |
730 | } | |
731 | ||
732 | return SR_OK; | |
733 | } | |
734 | ||
69e19dd7 BV |
735 | SR_PRIV int dso_get_channeldata(const struct sr_dev_inst *sdi, |
736 | libusb_transfer_cb_fn cb) | |
3b533202 | 737 | { |
69e19dd7 | 738 | struct dev_context *devc; |
c118080b | 739 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
740 | struct libusb_transfer *transfer; |
741 | int num_transfers, ret, i; | |
742 | uint8_t cmdstring[2]; | |
743 | unsigned char *buf; | |
744 | ||
e98b7f1b | 745 | sr_dbg("Sending CMD_GET_CHANNELDATA."); |
3b533202 | 746 | |
c118080b BV |
747 | devc = sdi->priv; |
748 | usb = sdi->conn; | |
749 | ||
3b533202 BV |
750 | cmdstring[0] = CMD_GET_CHANNELDATA; |
751 | cmdstring[1] = 0; | |
752 | ||
c118080b | 753 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
754 | sr_err("Failed to get channel data: %s.", |
755 | libusb_error_name(ret)); | |
3b533202 BV |
756 | return SR_ERR; |
757 | } | |
758 | ||
e98b7f1b UH |
759 | /* TODO: DSO-2xxx only. */ |
760 | num_transfers = devc->framesize * | |
761 | sizeof(unsigned short) / devc->epin_maxpacketsize; | |
762 | sr_dbg("Queueing up %d transfers.", num_transfers); | |
3b533202 | 763 | for (i = 0; i < num_transfers; i++) { |
269971dd | 764 | if (!(buf = g_try_malloc(devc->epin_maxpacketsize))) { |
e98b7f1b | 765 | sr_err("Failed to malloc USB endpoint buffer."); |
3b533202 BV |
766 | return SR_ERR_MALLOC; |
767 | } | |
768 | transfer = libusb_alloc_transfer(0); | |
c118080b | 769 | libusb_fill_bulk_transfer(transfer, usb->devhdl, DSO_EP_IN, buf, |
69e19dd7 | 770 | devc->epin_maxpacketsize, cb, (void *)sdi, 40); |
3b533202 | 771 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
d4928d71 PS |
772 | sr_err("Failed to submit transfer: %s.", |
773 | libusb_error_name(ret)); | |
3b533202 BV |
774 | /* TODO: Free them all. */ |
775 | libusb_free_transfer(transfer); | |
776 | g_free(buf); | |
777 | return SR_ERR; | |
778 | } | |
779 | } | |
780 | ||
781 | return SR_OK; | |
782 | } |