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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 UH |
27 | #include "libsigrok-internal.h" |
28 | #include "dso.h" | |
3b533202 | 29 | |
07ffa5b3 UH |
30 | #define NUM_CHANNELS 2 |
31 | ||
f8c617cf | 32 | extern struct sr_dev_driver hantek_dso_driver_info; |
3b533202 | 33 | |
c118080b | 34 | static int send_begin(const struct sr_dev_inst *sdi) |
3b533202 | 35 | { |
c118080b | 36 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
37 | int ret; |
38 | unsigned char buffer[] = {0x0f, 0x03, 0x03, 0x03, 0x68, 0xac, 0xfe, | |
39 | 0x00, 0x01, 0x00}; | |
40 | ||
e98b7f1b | 41 | sr_dbg("Sending CTRL_BEGINCOMMAND."); |
3b533202 | 42 | |
c118080b BV |
43 | usb = sdi->conn; |
44 | if ((ret = libusb_control_transfer(usb->devhdl, | |
3b533202 BV |
45 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_BEGINCOMMAND, |
46 | 0, 0, buffer, sizeof(buffer), 200)) != sizeof(buffer)) { | |
d4928d71 PS |
47 | sr_err("Failed to send begincommand: %s.", |
48 | libusb_error_name(ret)); | |
3b533202 BV |
49 | return SR_ERR; |
50 | } | |
51 | ||
52 | return SR_OK; | |
53 | } | |
54 | ||
c118080b | 55 | static int send_bulkcmd(const struct sr_dev_inst *sdi, uint8_t *cmdstring, int cmdlen) |
3b533202 | 56 | { |
c118080b | 57 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
58 | int ret, tmp; |
59 | ||
c118080b BV |
60 | usb = sdi->conn; |
61 | ||
62 | if (send_begin(sdi) != SR_OK) | |
3b533202 BV |
63 | return SR_ERR; |
64 | ||
c118080b BV |
65 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, cmdstring, |
66 | cmdlen, &tmp, 200)) != 0) | |
3b533202 BV |
67 | return SR_ERR; |
68 | ||
69 | return SR_OK; | |
70 | } | |
71 | ||
d87c1766 | 72 | static int dso_getmps(libusb_device *dev) |
3b533202 BV |
73 | { |
74 | struct libusb_device_descriptor des; | |
75 | struct libusb_config_descriptor *conf_dsc; | |
76 | const struct libusb_interface_descriptor *intf_dsc; | |
77 | int mps; | |
78 | ||
79 | if (libusb_get_device_descriptor(dev, &des) != 0) | |
80 | return 0; | |
81 | ||
82 | if (des.bNumConfigurations != 1) | |
83 | return 0; | |
84 | ||
85 | if (libusb_get_config_descriptor(dev, 0, &conf_dsc) != 0) | |
86 | return 0; | |
87 | ||
88 | mps = 0; | |
89 | intf_dsc = &(conf_dsc->interface[0].altsetting[0]); | |
90 | if (intf_dsc->bNumEndpoints != 2) | |
91 | goto err; | |
92 | ||
93 | if ((intf_dsc->endpoint[0].bEndpointAddress & 0x8f) != | |
94 | (2 | LIBUSB_ENDPOINT_OUT)) | |
95 | /* The first endpoint should be 2 (outbound). */ | |
96 | goto err; | |
97 | ||
98 | if ((intf_dsc->endpoint[1].bEndpointAddress & 0x8f) != | |
99 | (6 | LIBUSB_ENDPOINT_IN)) | |
100 | /* The second endpoint should be 6 (inbound). */ | |
101 | goto err; | |
102 | ||
103 | mps = intf_dsc->endpoint[1].wMaxPacketSize; | |
104 | ||
105 | err: | |
106 | if (conf_dsc) | |
107 | libusb_free_config_descriptor(conf_dsc); | |
108 | ||
109 | return mps; | |
110 | } | |
111 | ||
25a0f108 | 112 | SR_PRIV int dso_open(struct sr_dev_inst *sdi) |
3b533202 | 113 | { |
269971dd | 114 | struct dev_context *devc; |
41812aca | 115 | struct drv_context *drvc = hantek_dso_driver_info.context; |
c118080b BV |
116 | struct sr_usb_dev_inst *usb; |
117 | struct libusb_device_descriptor des; | |
118 | libusb_device **devlist; | |
395206f4 SA |
119 | int err, i; |
120 | char connection_id[64]; | |
3b533202 | 121 | |
269971dd | 122 | devc = sdi->priv; |
c118080b | 123 | usb = sdi->conn; |
3b533202 BV |
124 | |
125 | if (sdi->status == SR_ST_ACTIVE) | |
126 | /* already in use */ | |
127 | return SR_ERR; | |
128 | ||
d4abb463 | 129 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
3b533202 BV |
130 | for (i = 0; devlist[i]; i++) { |
131 | if ((err = libusb_get_device_descriptor(devlist[i], &des))) { | |
d4928d71 PS |
132 | sr_err("Failed to get device descriptor: %s.", |
133 | libusb_error_name(err)); | |
3b533202 BV |
134 | continue; |
135 | } | |
136 | ||
269971dd BV |
137 | if (des.idVendor != devc->profile->fw_vid |
138 | || des.idProduct != devc->profile->fw_pid) | |
3b533202 BV |
139 | continue; |
140 | ||
395206f4 SA |
141 | if ((sdi->status == SR_ST_INITIALIZING) || |
142 | (sdi->status == SR_ST_INACTIVE)) { | |
3b533202 | 143 | /* |
395206f4 | 144 | * Check device by its physical USB bus/port address. |
3b533202 | 145 | */ |
395206f4 SA |
146 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
147 | if (strcmp(sdi->connection_id, connection_id)) | |
148 | /* This is not the one. */ | |
3b533202 BV |
149 | continue; |
150 | } | |
151 | ||
c118080b BV |
152 | if (!(err = libusb_open(devlist[i], &usb->devhdl))) { |
153 | if (usb->address == 0xff) | |
3b533202 BV |
154 | /* |
155 | * first time we touch this device after firmware upload, | |
156 | * so we don't know the address yet. | |
157 | */ | |
c118080b | 158 | usb->address = libusb_get_device_address(devlist[i]); |
3b533202 | 159 | |
e98b7f1b UH |
160 | if (!(devc->epin_maxpacketsize = dso_getmps(devlist[i]))) |
161 | sr_err("Wrong endpoint profile."); | |
3b533202 BV |
162 | else { |
163 | sdi->status = SR_ST_ACTIVE; | |
395206f4 SA |
164 | sr_info("Opened device on %d.%d (logical) / " |
165 | "%s (physical) interface %d.", | |
166 | usb->bus, usb->address, | |
167 | sdi->connection_id, USB_INTERFACE); | |
3b533202 BV |
168 | } |
169 | } else { | |
d4928d71 PS |
170 | sr_err("Failed to open device: %s.", |
171 | libusb_error_name(err)); | |
3b533202 BV |
172 | } |
173 | ||
e98b7f1b | 174 | /* If we made it here, we handled the device (somehow). */ |
3b533202 BV |
175 | break; |
176 | } | |
177 | libusb_free_device_list(devlist, 1); | |
178 | ||
179 | if (sdi->status != SR_ST_ACTIVE) | |
180 | return SR_ERR; | |
181 | ||
182 | return SR_OK; | |
183 | } | |
184 | ||
185 | SR_PRIV void dso_close(struct sr_dev_inst *sdi) | |
186 | { | |
c118080b | 187 | struct sr_usb_dev_inst *usb; |
3b533202 | 188 | |
c118080b | 189 | usb = sdi->conn; |
3b533202 | 190 | |
98fec29e | 191 | if (!usb->devhdl) |
3b533202 BV |
192 | return; |
193 | ||
395206f4 SA |
194 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", |
195 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
c118080b BV |
196 | libusb_release_interface(usb->devhdl, USB_INTERFACE); |
197 | libusb_close(usb->devhdl); | |
198 | usb->devhdl = NULL; | |
3b533202 BV |
199 | sdi->status = SR_ST_INACTIVE; |
200 | ||
201 | } | |
202 | ||
c118080b | 203 | static int get_channel_offsets(const struct sr_dev_inst *sdi) |
3b533202 | 204 | { |
c118080b BV |
205 | struct dev_context *devc; |
206 | struct sr_usb_dev_inst *usb; | |
2715c0b8 BV |
207 | GString *gs; |
208 | int chan, v, ret; | |
3b533202 | 209 | |
e98b7f1b | 210 | sr_dbg("Getting channel offsets."); |
3b533202 | 211 | |
c118080b BV |
212 | devc = sdi->priv; |
213 | usb = sdi->conn; | |
214 | ||
215 | ret = libusb_control_transfer(usb->devhdl, | |
3b533202 BV |
216 | LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_VENDOR, |
217 | CTRL_READ_EEPROM, EEPROM_CHANNEL_OFFSETS, 0, | |
269971dd BV |
218 | (unsigned char *)&devc->channel_levels, |
219 | sizeof(devc->channel_levels), 200); | |
220 | if (ret != sizeof(devc->channel_levels)) { | |
d4928d71 PS |
221 | sr_err("Failed to get channel offsets: %s.", |
222 | libusb_error_name(ret)); | |
3b533202 BV |
223 | return SR_ERR; |
224 | } | |
225 | ||
2715c0b8 BV |
226 | /* Comes in as 16-bit numbers with the second byte always 0 on |
227 | * the DSO-2090. Guessing this is supposed to be big-endian, | |
228 | * since that's how voltage offsets are submitted back to the DSO. | |
229 | * Convert to host order now, so we can use them natively. | |
230 | */ | |
07ffa5b3 | 231 | for (chan = 0; chan < NUM_CHANNELS; chan++) { |
2715c0b8 | 232 | for (v = 0; v < 9; v++) { |
e98b7f1b UH |
233 | devc->channel_levels[chan][v][0] = |
234 | g_ntohs(devc->channel_levels[chan][v][0]); | |
235 | devc->channel_levels[chan][v][1] = | |
236 | g_ntohs(devc->channel_levels[chan][v][1]); | |
2715c0b8 BV |
237 | } |
238 | } | |
239 | ||
240 | if (sr_log_loglevel_get() >= SR_LOG_DBG) { | |
241 | gs = g_string_sized_new(128); | |
07ffa5b3 | 242 | for (chan = 0; chan < NUM_CHANNELS; chan++) { |
e98b7f1b | 243 | g_string_printf(gs, "CH%d:", chan + 1); |
2715c0b8 BV |
244 | for (v = 0; v < 9; v++) { |
245 | g_string_append_printf(gs, " %.4x-%.4x", | |
e98b7f1b UH |
246 | devc->channel_levels[chan][v][0], |
247 | devc->channel_levels[chan][v][1]); | |
2715c0b8 | 248 | } |
cbc6f3b2 | 249 | sr_dbg("%s", gs->str); |
2715c0b8 BV |
250 | } |
251 | g_string_free(gs, TRUE); | |
252 | } | |
253 | ||
3b533202 BV |
254 | return SR_OK; |
255 | } | |
256 | ||
d87c1766 | 257 | static int dso_set_trigger_samplerate(const struct sr_dev_inst *sdi) |
3b533202 | 258 | { |
c118080b BV |
259 | struct dev_context *devc; |
260 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
261 | int ret, tmp; |
262 | uint8_t cmdstring[12]; | |
3b533202 | 263 | uint16_t timebase_small[] = { 0xffff, 0xfffc, 0xfff7, 0xffe8, 0xffce, |
e98b7f1b | 264 | 0xff9c, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79, 0xd8f1 }; |
3b533202 | 265 | uint16_t timebase_large[] = { 0xffff, 0x0000, 0xfffc, 0xfff7, 0xffe8, |
e98b7f1b | 266 | 0xffce, 0xff9d, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79 }; |
3b533202 | 267 | |
e98b7f1b | 268 | sr_dbg("Preparing CMD_SET_TRIGGER_SAMPLERATE."); |
3b533202 | 269 | |
c118080b BV |
270 | devc = sdi->priv; |
271 | usb = sdi->conn; | |
272 | ||
3b533202 BV |
273 | memset(cmdstring, 0, sizeof(cmdstring)); |
274 | /* Command */ | |
275 | cmdstring[0] = CMD_SET_TRIGGER_SAMPLERATE; | |
276 | ||
277 | /* Trigger source */ | |
e98b7f1b | 278 | sr_dbg("Trigger source %s.", devc->triggersource); |
269971dd | 279 | if (!strcmp("CH2", devc->triggersource)) |
a370ef19 | 280 | tmp = 0; |
269971dd | 281 | else if (!strcmp("CH1", devc->triggersource)) |
a370ef19 | 282 | tmp = 1; |
269971dd | 283 | else if (!strcmp("EXT", devc->triggersource)) |
a370ef19 BV |
284 | tmp = 2; |
285 | else { | |
e98b7f1b | 286 | sr_err("Invalid trigger source: '%s'.", devc->triggersource); |
a370ef19 BV |
287 | return SR_ERR_ARG; |
288 | } | |
289 | cmdstring[2] = tmp; | |
3b533202 BV |
290 | |
291 | /* Frame size */ | |
e98b7f1b | 292 | sr_dbg("Frame size: %d.", devc->framesize); |
269971dd | 293 | cmdstring[2] |= (devc->framesize == FRAMESIZE_SMALL ? 0x01 : 0x02) << 2; |
bc79e906 BV |
294 | |
295 | /* Timebase fast */ | |
e98b7f1b | 296 | sr_dbg("Time base index: %d.", devc->timebase); |
034accb5 | 297 | if (devc->framesize == FRAMESIZE_SMALL) { |
269971dd | 298 | if (devc->timebase < TIME_20us) |
bc79e906 | 299 | tmp = 0; |
269971dd | 300 | else if (devc->timebase == TIME_20us) |
bc79e906 | 301 | tmp = 1; |
269971dd | 302 | else if (devc->timebase == TIME_40us) |
bc79e906 | 303 | tmp = 2; |
269971dd | 304 | else if (devc->timebase == TIME_100us) |
bc79e906 | 305 | tmp = 3; |
269971dd | 306 | else if (devc->timebase >= TIME_200us) |
bc79e906 | 307 | tmp = 4; |
034accb5 | 308 | } else { |
269971dd | 309 | if (devc->timebase < TIME_40us) { |
e98b7f1b | 310 | sr_err("Timebase < 40us only supported with 10K buffer."); |
bc79e906 BV |
311 | return SR_ERR_ARG; |
312 | } | |
269971dd | 313 | else if (devc->timebase == TIME_40us) |
bc79e906 | 314 | tmp = 0; |
269971dd | 315 | else if (devc->timebase == TIME_100us) |
bc79e906 | 316 | tmp = 2; |
269971dd | 317 | else if (devc->timebase == TIME_200us) |
bc79e906 | 318 | tmp = 3; |
269971dd | 319 | else if (devc->timebase >= TIME_400us) |
bc79e906 | 320 | tmp = 4; |
3b533202 | 321 | } |
bc79e906 BV |
322 | cmdstring[2] |= (tmp & 0x07) << 5; |
323 | ||
324 | /* Enabled channels: 00=CH1 01=CH2 10=both */ | |
e98b7f1b | 325 | sr_dbg("Channels CH1=%d CH2=%d", devc->ch1_enabled, devc->ch2_enabled); |
269971dd | 326 | tmp = (((devc->ch2_enabled ? 1 : 0) << 1) + (devc->ch1_enabled ? 1 : 0)) - 1; |
6e71ef3b | 327 | cmdstring[3] = tmp; |
3b533202 | 328 | |
bc79e906 | 329 | /* Fast rates channel */ |
e98b7f1b | 330 | /* TODO: Is this right? */ |
269971dd | 331 | tmp = devc->timebase < TIME_10us ? 1 : 0; |
bc79e906 | 332 | cmdstring[3] |= tmp << 2; |
3b533202 | 333 | |
bc79e906 | 334 | /* Trigger slope: 0=positive 1=negative */ |
e98b7f1b UH |
335 | /* TODO: Does this work? */ |
336 | sr_dbg("Trigger slope: %d.", devc->triggerslope); | |
269971dd | 337 | cmdstring[3] |= (devc->triggerslope == SLOPE_NEGATIVE ? 1 : 0) << 3; |
3b533202 | 338 | |
a370ef19 | 339 | /* Timebase slow */ |
269971dd | 340 | if (devc->timebase < TIME_100us) |
3b533202 | 341 | tmp = 0; |
269971dd | 342 | else if (devc->timebase > TIME_400ms) |
3b533202 BV |
343 | tmp = 0xffed; |
344 | else { | |
269971dd BV |
345 | if (devc->framesize == FRAMESIZE_SMALL) |
346 | tmp = timebase_small[devc->timebase - 3]; | |
3b533202 | 347 | else |
269971dd | 348 | tmp = timebase_large[devc->timebase - 3]; |
3b533202 | 349 | } |
bc79e906 BV |
350 | cmdstring[4] = tmp & 0xff; |
351 | cmdstring[5] = (tmp >> 8) & 0xff; | |
352 | ||
353 | /* Horizontal trigger position */ | |
e98b7f1b | 354 | sr_dbg("Trigger position: %3.2f.", devc->triggerposition); |
269971dd | 355 | tmp = 0x77fff + 0x8000 * devc->triggerposition; |
3b533202 BV |
356 | cmdstring[6] = tmp & 0xff; |
357 | cmdstring[7] = (tmp >> 8) & 0xff; | |
3b533202 BV |
358 | cmdstring[10] = (tmp >> 16) & 0xff; |
359 | ||
c118080b | 360 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
361 | return SR_ERR; |
362 | ||
c118080b BV |
363 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
364 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
d4928d71 PS |
365 | sr_err("Failed to set trigger/samplerate: %s.", |
366 | libusb_error_name(ret)); | |
3b533202 BV |
367 | return SR_ERR; |
368 | } | |
e98b7f1b | 369 | sr_dbg("Sent CMD_SET_TRIGGER_SAMPLERATE."); |
3b533202 BV |
370 | |
371 | return SR_OK; | |
372 | } | |
373 | ||
d87c1766 | 374 | static int dso_set_filters(const struct sr_dev_inst *sdi) |
3b533202 | 375 | { |
c118080b BV |
376 | struct dev_context *devc; |
377 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
378 | int ret, tmp; |
379 | uint8_t cmdstring[8]; | |
380 | ||
e98b7f1b | 381 | sr_dbg("Preparing CMD_SET_FILTERS."); |
3b533202 | 382 | |
c118080b BV |
383 | devc = sdi->priv; |
384 | usb = sdi->conn; | |
385 | ||
3b533202 BV |
386 | memset(cmdstring, 0, sizeof(cmdstring)); |
387 | cmdstring[0] = CMD_SET_FILTERS; | |
388 | cmdstring[1] = 0x0f; | |
933defaa | 389 | if (devc->filter[0]) { |
e98b7f1b | 390 | sr_dbg("Turning on CH1 filter."); |
3b533202 | 391 | cmdstring[2] |= 0x80; |
ebb781a6 | 392 | } |
933defaa | 393 | if (devc->filter[1]) { |
e98b7f1b | 394 | sr_dbg("Turning on CH2 filter."); |
3b533202 | 395 | cmdstring[2] |= 0x40; |
ebb781a6 | 396 | } |
933defaa BV |
397 | /* |
398 | * Not supported: filtering on the trigger | |
399 | * cmdstring[2] |= 0x20; | |
400 | */ | |
3b533202 | 401 | |
c118080b | 402 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
403 | return SR_ERR; |
404 | ||
c118080b BV |
405 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
406 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 407 | sr_err("Failed to set filters: %s.", libusb_error_name(ret)); |
3b533202 BV |
408 | return SR_ERR; |
409 | } | |
e98b7f1b | 410 | sr_dbg("Sent CMD_SET_FILTERS."); |
3b533202 BV |
411 | |
412 | return SR_OK; | |
413 | } | |
414 | ||
d87c1766 | 415 | static int dso_set_voltage(const struct sr_dev_inst *sdi) |
3b533202 | 416 | { |
c118080b BV |
417 | struct dev_context *devc; |
418 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
419 | int ret, tmp; |
420 | uint8_t cmdstring[8]; | |
421 | ||
e98b7f1b | 422 | sr_dbg("Preparing CMD_SET_VOLTAGE."); |
3b533202 | 423 | |
c118080b BV |
424 | devc = sdi->priv; |
425 | usb = sdi->conn; | |
426 | ||
3b533202 BV |
427 | memset(cmdstring, 0, sizeof(cmdstring)); |
428 | cmdstring[0] = CMD_SET_VOLTAGE; | |
429 | cmdstring[1] = 0x0f; | |
313deed2 BV |
430 | cmdstring[2] = 0x30; |
431 | ||
432 | /* CH1 volts/div is encoded in bits 0-1 */ | |
933defaa BV |
433 | sr_dbg("CH1 vdiv index: %d.", devc->voltage[0]); |
434 | switch (devc->voltage[0]) { | |
313deed2 BV |
435 | case VDIV_1V: |
436 | case VDIV_100MV: | |
437 | case VDIV_10MV: | |
438 | cmdstring[2] |= 0x00; | |
439 | break; | |
440 | case VDIV_2V: | |
441 | case VDIV_200MV: | |
442 | case VDIV_20MV: | |
443 | cmdstring[2] |= 0x01; | |
444 | break; | |
445 | case VDIV_5V: | |
446 | case VDIV_500MV: | |
447 | case VDIV_50MV: | |
448 | cmdstring[2] |= 0x02; | |
449 | break; | |
450 | } | |
451 | ||
452 | /* CH2 volts/div is encoded in bits 2-3 */ | |
933defaa BV |
453 | sr_dbg("CH2 vdiv index: %d.", devc->voltage[1]); |
454 | switch (devc->voltage[1]) { | |
313deed2 BV |
455 | case VDIV_1V: |
456 | case VDIV_100MV: | |
457 | case VDIV_10MV: | |
458 | cmdstring[2] |= 0x00; | |
459 | break; | |
460 | case VDIV_2V: | |
461 | case VDIV_200MV: | |
462 | case VDIV_20MV: | |
1d97091e | 463 | cmdstring[2] |= 0x04; |
313deed2 BV |
464 | break; |
465 | case VDIV_5V: | |
466 | case VDIV_500MV: | |
467 | case VDIV_50MV: | |
1d97091e | 468 | cmdstring[2] |= 0x08; |
313deed2 BV |
469 | break; |
470 | } | |
3b533202 | 471 | |
c118080b | 472 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
473 | return SR_ERR; |
474 | ||
c118080b BV |
475 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
476 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 477 | sr_err("Failed to set voltage: %s.", libusb_error_name(ret)); |
3b533202 BV |
478 | return SR_ERR; |
479 | } | |
e98b7f1b | 480 | sr_dbg("Sent CMD_SET_VOLTAGE."); |
3b533202 BV |
481 | |
482 | return SR_OK; | |
483 | } | |
484 | ||
d87c1766 | 485 | static int dso_set_relays(const struct sr_dev_inst *sdi) |
3b533202 | 486 | { |
c118080b BV |
487 | struct dev_context *devc; |
488 | struct sr_usb_dev_inst *usb; | |
a217bcdf BV |
489 | GString *gs; |
490 | int ret, i; | |
491 | uint8_t relays[17] = { 0x00, 0x04, 0x08, 0x02, 0x20, 0x40, 0x10, 0x01, | |
3b533202 BV |
492 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
493 | ||
e98b7f1b | 494 | sr_dbg("Preparing CTRL_SETRELAYS."); |
3b533202 | 495 | |
c118080b BV |
496 | devc = sdi->priv; |
497 | usb = sdi->conn; | |
498 | ||
933defaa | 499 | if (devc->voltage[0] < VDIV_1V) |
3b533202 BV |
500 | relays[1] = ~relays[1]; |
501 | ||
933defaa | 502 | if (devc->voltage[0] < VDIV_100MV) |
3b533202 BV |
503 | relays[2] = ~relays[2]; |
504 | ||
933defaa BV |
505 | sr_dbg("CH1 coupling: %d.", devc->coupling[0]); |
506 | if (devc->coupling[0] != COUPLING_AC) | |
3b533202 BV |
507 | relays[3] = ~relays[3]; |
508 | ||
933defaa | 509 | if (devc->voltage[1] < VDIV_1V) |
3b533202 BV |
510 | relays[4] = ~relays[4]; |
511 | ||
933defaa | 512 | if (devc->voltage[1] < VDIV_100MV) |
3b533202 BV |
513 | relays[5] = ~relays[5]; |
514 | ||
933defaa BV |
515 | sr_dbg("CH2 coupling: %d.", devc->coupling[1]); |
516 | if (devc->coupling[1] != COUPLING_AC) | |
3b533202 BV |
517 | relays[6] = ~relays[6]; |
518 | ||
269971dd | 519 | if (!strcmp(devc->triggersource, "EXT")) |
3b533202 BV |
520 | relays[7] = ~relays[7]; |
521 | ||
a217bcdf BV |
522 | if (sr_log_loglevel_get() >= SR_LOG_DBG) { |
523 | gs = g_string_sized_new(128); | |
e98b7f1b | 524 | g_string_printf(gs, "Relays:"); |
a217bcdf BV |
525 | for (i = 0; i < 17; i++) |
526 | g_string_append_printf(gs, " %.2x", relays[i]); | |
cbc6f3b2 | 527 | sr_dbg("%s", gs->str); |
a217bcdf BV |
528 | g_string_free(gs, TRUE); |
529 | } | |
530 | ||
c118080b | 531 | if ((ret = libusb_control_transfer(usb->devhdl, |
3b533202 | 532 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_SETRELAYS, |
a217bcdf | 533 | 0, 0, relays, 17, 100)) != sizeof(relays)) { |
1740429d | 534 | sr_err("Failed to set relays: %s.", libusb_error_name(ret)); |
3b533202 BV |
535 | return SR_ERR; |
536 | } | |
e98b7f1b | 537 | sr_dbg("Sent CTRL_SETRELAYS."); |
3b533202 BV |
538 | |
539 | return SR_OK; | |
540 | } | |
541 | ||
d87c1766 | 542 | static int dso_set_voffsets(const struct sr_dev_inst *sdi) |
3b533202 | 543 | { |
c118080b BV |
544 | struct dev_context *devc; |
545 | struct sr_usb_dev_inst *usb; | |
3b533202 BV |
546 | int offset, ret; |
547 | uint16_t *ch_levels; | |
2715c0b8 BV |
548 | uint8_t offsets[17]; |
549 | ||
e98b7f1b | 550 | sr_dbg("Preparing CTRL_SETOFFSET."); |
2715c0b8 | 551 | |
c118080b BV |
552 | devc = sdi->priv; |
553 | usb = sdi->conn; | |
554 | ||
2715c0b8 BV |
555 | memset(offsets, 0, sizeof(offsets)); |
556 | /* Channel 1 */ | |
933defaa | 557 | ch_levels = devc->channel_levels[0][devc->voltage[0]]; |
269971dd | 558 | offset = (ch_levels[1] - ch_levels[0]) * devc->voffset_ch1 + ch_levels[0]; |
2715c0b8 BV |
559 | offsets[0] = (offset >> 8) | 0x20; |
560 | offsets[1] = offset & 0xff; | |
e98b7f1b UH |
561 | sr_dbg("CH1 offset: %3.2f (%.2x%.2x).", devc->voffset_ch1, |
562 | offsets[0], offsets[1]); | |
2715c0b8 BV |
563 | |
564 | /* Channel 2 */ | |
933defaa | 565 | ch_levels = devc->channel_levels[1][devc->voltage[1]]; |
269971dd | 566 | offset = (ch_levels[1] - ch_levels[0]) * devc->voffset_ch2 + ch_levels[0]; |
2715c0b8 BV |
567 | offsets[2] = (offset >> 8) | 0x20; |
568 | offsets[3] = offset & 0xff; | |
e98b7f1b UH |
569 | sr_dbg("CH2 offset: %3.2f (%.2x%.2x).", devc->voffset_ch2, |
570 | offsets[2], offsets[3]); | |
2715c0b8 BV |
571 | |
572 | /* Trigger */ | |
269971dd | 573 | offset = MAX_VERT_TRIGGER * devc->voffset_trigger; |
2715c0b8 BV |
574 | offsets[4] = (offset >> 8) | 0x20; |
575 | offsets[5] = offset & 0xff; | |
e98b7f1b | 576 | sr_dbg("Trigger offset: %3.2f (%.2x%.2x).", devc->voffset_trigger, |
2715c0b8 | 577 | offsets[4], offsets[5]); |
3b533202 | 578 | |
c118080b | 579 | if ((ret = libusb_control_transfer(usb->devhdl, |
3b533202 BV |
580 | LIBUSB_REQUEST_TYPE_VENDOR, CTRL_SETOFFSET, |
581 | 0, 0, offsets, sizeof(offsets), 100)) != sizeof(offsets)) { | |
1740429d | 582 | sr_err("Failed to set offsets: %s.", libusb_error_name(ret)); |
3b533202 BV |
583 | return SR_ERR; |
584 | } | |
e98b7f1b | 585 | sr_dbg("Sent CTRL_SETOFFSET."); |
3b533202 BV |
586 | |
587 | return SR_OK; | |
588 | } | |
589 | ||
c118080b | 590 | SR_PRIV int dso_enable_trigger(const struct sr_dev_inst *sdi) |
3b533202 | 591 | { |
c118080b | 592 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
593 | int ret, tmp; |
594 | uint8_t cmdstring[2]; | |
595 | ||
e98b7f1b | 596 | sr_dbg("Sending CMD_ENABLE_TRIGGER."); |
3b533202 | 597 | |
c118080b BV |
598 | usb = sdi->conn; |
599 | ||
3b533202 BV |
600 | memset(cmdstring, 0, sizeof(cmdstring)); |
601 | cmdstring[0] = CMD_ENABLE_TRIGGER; | |
602 | cmdstring[1] = 0x00; | |
603 | ||
c118080b | 604 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
605 | return SR_ERR; |
606 | ||
c118080b BV |
607 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
608 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 609 | sr_err("Failed to enable trigger: %s.", libusb_error_name(ret)); |
3b533202 BV |
610 | return SR_ERR; |
611 | } | |
612 | ||
613 | return SR_OK; | |
614 | } | |
615 | ||
c118080b | 616 | SR_PRIV int dso_force_trigger(const struct sr_dev_inst *sdi) |
3b533202 | 617 | { |
c118080b | 618 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
619 | int ret, tmp; |
620 | uint8_t cmdstring[2]; | |
621 | ||
e98b7f1b | 622 | sr_dbg("Sending CMD_FORCE_TRIGGER."); |
3b533202 | 623 | |
c118080b BV |
624 | usb = sdi->conn; |
625 | ||
3b533202 BV |
626 | memset(cmdstring, 0, sizeof(cmdstring)); |
627 | cmdstring[0] = CMD_FORCE_TRIGGER; | |
628 | cmdstring[1] = 0x00; | |
629 | ||
c118080b | 630 | if (send_begin(sdi) != SR_OK) |
3b533202 BV |
631 | return SR_ERR; |
632 | ||
c118080b BV |
633 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT, |
634 | cmdstring, sizeof(cmdstring), &tmp, 100)) != 0) { | |
1740429d | 635 | sr_err("Failed to force trigger: %s.", libusb_error_name(ret)); |
3b533202 BV |
636 | return SR_ERR; |
637 | } | |
638 | ||
639 | return SR_OK; | |
640 | } | |
641 | ||
c118080b | 642 | SR_PRIV int dso_init(const struct sr_dev_inst *sdi) |
3b533202 BV |
643 | { |
644 | ||
e98b7f1b | 645 | sr_dbg("Initializing DSO."); |
3b533202 | 646 | |
c118080b | 647 | if (get_channel_offsets(sdi) != SR_OK) |
3b533202 BV |
648 | return SR_ERR; |
649 | ||
c118080b | 650 | if (dso_set_trigger_samplerate(sdi) != SR_OK) |
3b533202 BV |
651 | return SR_ERR; |
652 | ||
c118080b | 653 | if (dso_set_filters(sdi) != SR_OK) |
3b533202 BV |
654 | return SR_ERR; |
655 | ||
c118080b | 656 | if (dso_set_voltage(sdi) != SR_OK) |
3b533202 BV |
657 | return SR_ERR; |
658 | ||
c118080b | 659 | if (dso_set_relays(sdi) != SR_OK) |
3b533202 BV |
660 | return SR_ERR; |
661 | ||
c118080b | 662 | if (dso_set_voffsets(sdi) != SR_OK) |
3b533202 BV |
663 | return SR_ERR; |
664 | ||
c118080b | 665 | if (dso_enable_trigger(sdi) != SR_OK) |
3b533202 BV |
666 | return SR_ERR; |
667 | ||
3b533202 BV |
668 | return SR_OK; |
669 | } | |
670 | ||
c118080b BV |
671 | SR_PRIV int dso_get_capturestate(const struct sr_dev_inst *sdi, |
672 | uint8_t *capturestate, uint32_t *trigger_offset) | |
3b533202 | 673 | { |
c118080b | 674 | struct sr_usb_dev_inst *usb; |
e05a174b BV |
675 | int ret, tmp, i; |
676 | unsigned int bitvalue, toff; | |
3b533202 BV |
677 | uint8_t cmdstring[2], inbuf[512]; |
678 | ||
e98b7f1b | 679 | sr_dbg("Sending CMD_GET_CAPTURESTATE."); |
3b533202 | 680 | |
c118080b BV |
681 | usb = sdi->conn; |
682 | ||
3b533202 BV |
683 | cmdstring[0] = CMD_GET_CAPTURESTATE; |
684 | cmdstring[1] = 0; | |
685 | ||
c118080b | 686 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
687 | sr_dbg("Failed to send get_capturestate command: %s.", |
688 | libusb_error_name(ret)); | |
6e6eeff4 | 689 | return SR_ERR; |
3b533202 BV |
690 | } |
691 | ||
c118080b | 692 | if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_IN, |
3b533202 | 693 | inbuf, 512, &tmp, 100)) != 0) { |
d4928d71 PS |
694 | sr_dbg("Failed to get capturestate: %s.", |
695 | libusb_error_name(ret)); | |
6e6eeff4 | 696 | return SR_ERR; |
3b533202 | 697 | } |
6e6eeff4 | 698 | *capturestate = inbuf[0]; |
e05a174b BV |
699 | toff = (inbuf[1] << 16) | (inbuf[3] << 8) | inbuf[2]; |
700 | ||
e98b7f1b UH |
701 | /* |
702 | * This conversion comes from the openhantek project. | |
e05a174b BV |
703 | * Each set bit in the 24-bit value inverts all bits with a lower |
704 | * value. No idea why the device reports the trigger point this way. | |
705 | */ | |
706 | bitvalue = 1; | |
707 | for (i = 0; i < 24; i++) { | |
e749a8cb | 708 | /* Each set bit inverts all bits with a lower value. */ |
0c5f2abc | 709 | if (toff & bitvalue) |
e05a174b BV |
710 | toff ^= bitvalue - 1; |
711 | bitvalue <<= 1; | |
712 | } | |
713 | *trigger_offset = toff; | |
3b533202 | 714 | |
6e6eeff4 | 715 | return SR_OK; |
3b533202 BV |
716 | } |
717 | ||
c118080b | 718 | SR_PRIV int dso_capture_start(const struct sr_dev_inst *sdi) |
3b533202 BV |
719 | { |
720 | int ret; | |
721 | uint8_t cmdstring[2]; | |
722 | ||
e98b7f1b | 723 | sr_dbg("Sending CMD_CAPTURE_START."); |
3b533202 BV |
724 | |
725 | cmdstring[0] = CMD_CAPTURE_START; | |
726 | cmdstring[1] = 0; | |
727 | ||
c118080b | 728 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
729 | sr_err("Failed to send capture_start command: %s.", |
730 | libusb_error_name(ret)); | |
3b533202 BV |
731 | return SR_ERR; |
732 | } | |
733 | ||
734 | return SR_OK; | |
735 | } | |
736 | ||
69e19dd7 BV |
737 | SR_PRIV int dso_get_channeldata(const struct sr_dev_inst *sdi, |
738 | libusb_transfer_cb_fn cb) | |
3b533202 | 739 | { |
69e19dd7 | 740 | struct dev_context *devc; |
c118080b | 741 | struct sr_usb_dev_inst *usb; |
3b533202 BV |
742 | struct libusb_transfer *transfer; |
743 | int num_transfers, ret, i; | |
744 | uint8_t cmdstring[2]; | |
745 | unsigned char *buf; | |
746 | ||
e98b7f1b | 747 | sr_dbg("Sending CMD_GET_CHANNELDATA."); |
3b533202 | 748 | |
c118080b BV |
749 | devc = sdi->priv; |
750 | usb = sdi->conn; | |
751 | ||
3b533202 BV |
752 | cmdstring[0] = CMD_GET_CHANNELDATA; |
753 | cmdstring[1] = 0; | |
754 | ||
c118080b | 755 | if ((ret = send_bulkcmd(sdi, cmdstring, sizeof(cmdstring))) != SR_OK) { |
d4928d71 PS |
756 | sr_err("Failed to get channel data: %s.", |
757 | libusb_error_name(ret)); | |
3b533202 BV |
758 | return SR_ERR; |
759 | } | |
760 | ||
e98b7f1b UH |
761 | /* TODO: DSO-2xxx only. */ |
762 | num_transfers = devc->framesize * | |
763 | sizeof(unsigned short) / devc->epin_maxpacketsize; | |
764 | sr_dbg("Queueing up %d transfers.", num_transfers); | |
3b533202 | 765 | for (i = 0; i < num_transfers; i++) { |
269971dd | 766 | if (!(buf = g_try_malloc(devc->epin_maxpacketsize))) { |
e98b7f1b | 767 | sr_err("Failed to malloc USB endpoint buffer."); |
3b533202 BV |
768 | return SR_ERR_MALLOC; |
769 | } | |
770 | transfer = libusb_alloc_transfer(0); | |
c118080b | 771 | libusb_fill_bulk_transfer(transfer, usb->devhdl, DSO_EP_IN, buf, |
69e19dd7 | 772 | devc->epin_maxpacketsize, cb, (void *)sdi, 40); |
3b533202 | 773 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
d4928d71 PS |
774 | sr_err("Failed to submit transfer: %s.", |
775 | libusb_error_name(ret)); | |
3b533202 BV |
776 | /* TODO: Free them all. */ |
777 | libusb_free_transfer(transfer); | |
778 | g_free(buf); | |
779 | return SR_ERR; | |
780 | } | |
781 | } | |
782 | ||
783 | return SR_OK; | |
784 | } |