]>
Commit | Line | Data |
---|---|---|
3ba56876 | 1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2010-2012 Håvard Espeland <gus@ping.uio.no>, | |
5 | * Copyright (C) 2010 Martin Stensgård <mastensg@ping.uio.no> | |
6 | * Copyright (C) 2010 Carl Henrik Lunde <chlunde@ping.uio.no> | |
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 | ||
3ba56876 | 22 | #include <config.h> |
23 | #include "protocol.h" | |
24 | ||
3ba56876 | 25 | /* |
26 | * Channel numbers seem to go from 1-16, according to this image: | |
27 | * http://tools.asix.net/img/sigma_sigmacab_pins_720.jpg | |
28 | * (the cable has two additional GND pins, and a TI and TO pin) | |
29 | */ | |
30 | static const char *channel_names[] = { | |
31 | "1", "2", "3", "4", "5", "6", "7", "8", | |
32 | "9", "10", "11", "12", "13", "14", "15", "16", | |
33 | }; | |
34 | ||
53a939ab GS |
35 | static const uint32_t scanopts[] = { |
36 | SR_CONF_CONN, | |
37 | }; | |
38 | ||
3ba56876 | 39 | static const uint32_t drvopts[] = { |
40 | SR_CONF_LOGIC_ANALYZER, | |
41 | }; | |
42 | ||
43 | static const uint32_t devopts[] = { | |
44 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
2f7e529c | 45 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, |
53a939ab | 46 | SR_CONF_CONN | SR_CONF_GET, |
3ba56876 | 47 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
de3f7acb | 48 | #if ASIX_SIGMA_WITH_TRIGGER |
3ba56876 | 49 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, |
50 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, | |
de3f7acb | 51 | #endif |
3ba56876 | 52 | }; |
53 | ||
eac48b34 | 54 | #if ASIX_SIGMA_WITH_TRIGGER |
3ba56876 | 55 | static const int32_t trigger_matches[] = { |
56 | SR_TRIGGER_ZERO, | |
57 | SR_TRIGGER_ONE, | |
58 | SR_TRIGGER_RISING, | |
59 | SR_TRIGGER_FALLING, | |
60 | }; | |
eac48b34 | 61 | #endif |
3ba56876 | 62 | |
3553451f | 63 | static void clear_helper(struct dev_context *devc) |
53279f13 | 64 | { |
53279f13 UH |
65 | ftdi_deinit(&devc->ftdic); |
66 | } | |
67 | ||
3ba56876 | 68 | static int dev_clear(const struct sr_dev_driver *di) |
69 | { | |
3553451f | 70 | return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper); |
3ba56876 | 71 | } |
72 | ||
53a939ab | 73 | static gboolean bus_addr_in_devices(int bus, int addr, GSList *devs) |
3ba56876 | 74 | { |
53a939ab | 75 | struct sr_usb_dev_inst *usb; |
3ba56876 | 76 | |
53a939ab GS |
77 | for (/* EMPTY */; devs; devs = devs->next) { |
78 | usb = devs->data; | |
79 | if (usb->bus == bus && usb->address == addr) | |
80 | return TRUE; | |
81 | } | |
3ba56876 | 82 | |
53a939ab GS |
83 | return FALSE; |
84 | } | |
3ba56876 | 85 | |
53a939ab GS |
86 | static gboolean known_vid_pid(const struct libusb_device_descriptor *des) |
87 | { | |
88 | if (des->idVendor != USB_VENDOR_ASIX) | |
89 | return FALSE; | |
90 | if (des->idProduct != USB_PRODUCT_SIGMA && des->idProduct != USB_PRODUCT_OMEGA) | |
91 | return FALSE; | |
92 | return TRUE; | |
93 | } | |
3ba56876 | 94 | |
53a939ab GS |
95 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
96 | { | |
97 | struct drv_context *drvc; | |
98 | libusb_context *usbctx; | |
99 | const char *conn; | |
100 | GSList *l, *conn_devices; | |
101 | struct sr_config *src; | |
102 | GSList *devices; | |
103 | libusb_device **devlist, *devitem; | |
104 | int bus, addr; | |
105 | struct libusb_device_descriptor des; | |
106 | struct libusb_device_handle *hdl; | |
107 | int ret; | |
108 | char conn_id[20]; | |
109 | char serno_txt[16]; | |
110 | char *end; | |
111 | long serno_num, serno_pre; | |
112 | enum asix_device_type dev_type; | |
113 | const char *dev_text; | |
114 | struct sr_dev_inst *sdi; | |
115 | struct dev_context *devc; | |
116 | size_t devidx, chidx; | |
117 | ||
118 | drvc = di->context; | |
119 | usbctx = drvc->sr_ctx->libusb_ctx; | |
120 | ||
121 | /* Find all devices which match an (optional) conn= spec. */ | |
122 | conn = NULL; | |
123 | for (l = options; l; l = l->next) { | |
124 | src = l->data; | |
125 | switch (src->key) { | |
126 | case SR_CONF_CONN: | |
127 | conn = g_variant_get_string(src->data, NULL); | |
128 | break; | |
129 | } | |
3ba56876 | 130 | } |
53a939ab GS |
131 | conn_devices = NULL; |
132 | if (conn) | |
133 | conn_devices = sr_usb_find(usbctx, conn); | |
134 | if (conn && !conn_devices) | |
135 | return NULL; | |
136 | ||
137 | /* Find all ASIX logic analyzers (which match the connection spec). */ | |
138 | devices = NULL; | |
139 | libusb_get_device_list(usbctx, &devlist); | |
140 | for (devidx = 0; devlist[devidx]; devidx++) { | |
141 | devitem = devlist[devidx]; | |
142 | ||
143 | /* Check for connection match if a user spec was given. */ | |
144 | bus = libusb_get_bus_number(devitem); | |
145 | addr = libusb_get_device_address(devitem); | |
146 | if (conn && !bus_addr_in_devices(bus, addr, conn_devices)) | |
147 | continue; | |
148 | snprintf(conn_id, sizeof(conn_id), "%d.%d", bus, addr); | |
149 | ||
150 | /* | |
151 | * Check for known VID:PID pairs. Get the serial number, | |
152 | * to then derive the device type from it. | |
153 | */ | |
154 | libusb_get_device_descriptor(devitem, &des); | |
155 | if (!known_vid_pid(&des)) | |
156 | continue; | |
157 | if (!des.iSerialNumber) { | |
158 | sr_warn("Cannot get serial number (index 0)."); | |
159 | continue; | |
160 | } | |
161 | ret = libusb_open(devitem, &hdl); | |
162 | if (ret < 0) { | |
163 | sr_warn("Cannot open USB device %04x.%04x: %s.", | |
164 | des.idVendor, des.idProduct, | |
165 | libusb_error_name(ret)); | |
166 | continue; | |
167 | } | |
168 | ret = libusb_get_string_descriptor_ascii(hdl, | |
169 | des.iSerialNumber, | |
170 | (unsigned char *)serno_txt, sizeof(serno_txt)); | |
171 | if (ret < 0) { | |
172 | sr_warn("Cannot get serial number (%s).", | |
173 | libusb_error_name(ret)); | |
174 | libusb_close(hdl); | |
175 | continue; | |
176 | } | |
177 | libusb_close(hdl); | |
178 | ||
179 | /* | |
180 | * All ASIX logic analyzers have a serial number, which | |
181 | * reads as a hex number, and tells the device type. | |
182 | */ | |
183 | ret = sr_atol_base(serno_txt, &serno_num, &end, 16); | |
184 | if (ret != SR_OK || !end || *end) { | |
185 | sr_warn("Cannot interpret serial number %s.", serno_txt); | |
186 | continue; | |
187 | } | |
188 | dev_type = ASIX_TYPE_NONE; | |
189 | dev_text = NULL; | |
190 | serno_pre = serno_num >> 16; | |
191 | switch (serno_pre) { | |
192 | case 0xa601: | |
193 | dev_type = ASIX_TYPE_SIGMA; | |
194 | dev_text = "SIGMA"; | |
195 | sr_info("Found SIGMA, serno %s.", serno_txt); | |
196 | break; | |
197 | case 0xa602: | |
198 | dev_type = ASIX_TYPE_SIGMA; | |
199 | dev_text = "SIGMA2"; | |
200 | sr_info("Found SIGMA2, serno %s.", serno_txt); | |
201 | break; | |
202 | case 0xa603: | |
203 | dev_type = ASIX_TYPE_OMEGA; | |
204 | dev_text = "OMEGA"; | |
205 | sr_info("Found OMEGA, serno %s.", serno_txt); | |
206 | if (!ASIX_WITH_OMEGA) { | |
207 | sr_warn("OMEGA support is not implemented yet."); | |
208 | continue; | |
209 | } | |
210 | break; | |
211 | default: | |
212 | sr_warn("Unknown serno %s, skipping.", serno_txt); | |
213 | continue; | |
214 | } | |
215 | ||
216 | /* Create a device instance, add it to the result set. */ | |
217 | ||
218 | sdi = g_malloc0(sizeof(*sdi)); | |
219 | devices = g_slist_append(devices, sdi); | |
220 | sdi->status = SR_ST_INITIALIZING; | |
221 | sdi->vendor = g_strdup("ASIX"); | |
222 | sdi->model = g_strdup(dev_text); | |
223 | sdi->serial_num = g_strdup(serno_txt); | |
224 | sdi->connection_id = g_strdup(conn_id); | |
225 | for (chidx = 0; chidx < ARRAY_SIZE(channel_names); chidx++) | |
226 | sr_channel_new(sdi, chidx, SR_CHANNEL_LOGIC, | |
227 | TRUE, channel_names[chidx]); | |
228 | ||
229 | devc = g_malloc0(sizeof(*devc)); | |
230 | sdi->priv = devc; | |
231 | devc->id.vid = des.idVendor; | |
232 | devc->id.pid = des.idProduct; | |
233 | devc->id.serno = serno_num; | |
234 | devc->id.prefix = serno_pre; | |
235 | devc->id.type = dev_type; | |
5e78a564 GS |
236 | devc->samplerate = samplerates[0]; |
237 | sr_sw_limits_init(&devc->cfg_limits); | |
53a939ab | 238 | devc->cur_firmware = -1; |
53a939ab GS |
239 | devc->capture_ratio = 50; |
240 | devc->use_triggers = 0; | |
3ba56876 | 241 | } |
53a939ab GS |
242 | libusb_free_device_list(devlist, 1); |
243 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); | |
3ba56876 | 244 | |
53a939ab | 245 | return std_scan_complete(di, devices); |
3ba56876 | 246 | } |
247 | ||
3ba56876 | 248 | static int dev_open(struct sr_dev_inst *sdi) |
249 | { | |
250 | struct dev_context *devc; | |
53a939ab GS |
251 | long vid, pid; |
252 | const char *serno; | |
3ba56876 | 253 | int ret; |
254 | ||
255 | devc = sdi->priv; | |
256 | ||
53a939ab GS |
257 | if (devc->id.type == ASIX_TYPE_OMEGA && !ASIX_WITH_OMEGA) { |
258 | sr_err("OMEGA support is not implemented yet."); | |
259 | return SR_ERR_NA; | |
260 | } | |
261 | vid = devc->id.vid; | |
262 | pid = devc->id.pid; | |
263 | serno = sdi->serial_num; | |
264 | ||
265 | ret = ftdi_init(&devc->ftdic); | |
266 | if (ret < 0) { | |
267 | sr_err("Cannot initialize FTDI context (%d): %s.", | |
268 | ret, ftdi_get_error_string(&devc->ftdic)); | |
269 | return SR_ERR_IO; | |
270 | } | |
271 | ret = ftdi_usb_open_desc_index(&devc->ftdic, vid, pid, NULL, serno, 0); | |
272 | if (ret < 0) { | |
273 | sr_err("Cannot open device (%d): %s.", | |
274 | ret, ftdi_get_error_string(&devc->ftdic)); | |
275 | return SR_ERR_IO; | |
3ba56876 | 276 | } |
277 | ||
3ba56876 | 278 | return SR_OK; |
279 | } | |
280 | ||
281 | static int dev_close(struct sr_dev_inst *sdi) | |
282 | { | |
283 | struct dev_context *devc; | |
53a939ab | 284 | int ret; |
3ba56876 | 285 | |
286 | devc = sdi->priv; | |
287 | ||
53a939ab GS |
288 | ret = ftdi_usb_close(&devc->ftdic); |
289 | ftdi_deinit(&devc->ftdic); | |
290 | ||
291 | return (ret == 0) ? SR_OK : SR_ERR; | |
3ba56876 | 292 | } |
293 | ||
dd7a72ea UH |
294 | static int config_get(uint32_t key, GVariant **data, |
295 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
3ba56876 | 296 | { |
297 | struct dev_context *devc; | |
298 | ||
299 | (void)cg; | |
300 | ||
301 | if (!sdi) | |
302 | return SR_ERR; | |
303 | devc = sdi->priv; | |
304 | ||
305 | switch (key) { | |
53a939ab GS |
306 | case SR_CONF_CONN: |
307 | *data = g_variant_new_string(sdi->connection_id); | |
308 | break; | |
3ba56876 | 309 | case SR_CONF_SAMPLERATE: |
5e78a564 | 310 | *data = g_variant_new_uint64(devc->samplerate); |
3ba56876 | 311 | break; |
312 | case SR_CONF_LIMIT_MSEC: | |
2f7e529c | 313 | case SR_CONF_LIMIT_SAMPLES: |
5e78a564 | 314 | return sr_sw_limits_config_get(&devc->cfg_limits, key, data); |
de3f7acb | 315 | #if ASIX_SIGMA_WITH_TRIGGER |
3ba56876 | 316 | case SR_CONF_CAPTURE_RATIO: |
317 | *data = g_variant_new_uint64(devc->capture_ratio); | |
318 | break; | |
de3f7acb | 319 | #endif |
3ba56876 | 320 | default: |
321 | return SR_ERR_NA; | |
322 | } | |
323 | ||
324 | return SR_OK; | |
325 | } | |
326 | ||
dd7a72ea UH |
327 | static int config_set(uint32_t key, GVariant *data, |
328 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
3ba56876 | 329 | { |
330 | struct dev_context *devc; | |
5e78a564 GS |
331 | int ret; |
332 | uint64_t want_rate, have_rate; | |
3ba56876 | 333 | |
334 | (void)cg; | |
335 | ||
3ba56876 | 336 | devc = sdi->priv; |
337 | ||
3ba56876 | 338 | switch (key) { |
339 | case SR_CONF_SAMPLERATE: | |
5e78a564 GS |
340 | want_rate = g_variant_get_uint64(data); |
341 | ret = sigma_normalize_samplerate(want_rate, &have_rate); | |
342 | if (ret != SR_OK) | |
343 | return ret; | |
344 | if (have_rate != want_rate) { | |
345 | char *text_want, *text_have; | |
346 | text_want = sr_samplerate_string(want_rate); | |
347 | text_have = sr_samplerate_string(have_rate); | |
348 | sr_info("Adjusted samplerate %s to %s.", | |
349 | text_want, text_have); | |
350 | g_free(text_want); | |
351 | g_free(text_have); | |
352 | } | |
353 | devc->samplerate = have_rate; | |
3ba56876 | 354 | break; |
5e78a564 | 355 | case SR_CONF_LIMIT_MSEC: |
3ba56876 | 356 | case SR_CONF_LIMIT_SAMPLES: |
5e78a564 | 357 | return sr_sw_limits_config_set(&devc->cfg_limits, key, data); |
de3f7acb | 358 | #if ASIX_SIGMA_WITH_TRIGGER |
3ba56876 | 359 | case SR_CONF_CAPTURE_RATIO: |
efad7ccc | 360 | devc->capture_ratio = g_variant_get_uint64(data); |
3ba56876 | 361 | break; |
de3f7acb | 362 | #endif |
3ba56876 | 363 | default: |
758906aa | 364 | return SR_ERR_NA; |
3ba56876 | 365 | } |
366 | ||
758906aa | 367 | return SR_OK; |
3ba56876 | 368 | } |
369 | ||
dd7a72ea UH |
370 | static int config_list(uint32_t key, GVariant **data, |
371 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
3ba56876 | 372 | { |
3ba56876 | 373 | switch (key) { |
53a939ab | 374 | case SR_CONF_SCAN_OPTIONS: |
3ba56876 | 375 | case SR_CONF_DEVICE_OPTIONS: |
53a939ab GS |
376 | if (cg) |
377 | return SR_ERR_NA; | |
378 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
3ba56876 | 379 | case SR_CONF_SAMPLERATE: |
463160cb | 380 | *data = std_gvar_samplerates(samplerates, samplerates_count); |
3ba56876 | 381 | break; |
de3f7acb | 382 | #if ASIX_SIGMA_WITH_TRIGGER |
3ba56876 | 383 | case SR_CONF_TRIGGER_MATCH: |
53012da6 | 384 | *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches)); |
3ba56876 | 385 | break; |
de3f7acb | 386 | #endif |
3ba56876 | 387 | default: |
388 | return SR_ERR_NA; | |
389 | } | |
390 | ||
391 | return SR_OK; | |
392 | } | |
393 | ||
695dc859 | 394 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
3ba56876 | 395 | { |
396 | struct dev_context *devc; | |
397 | struct clockselect_50 clockselect; | |
8256ed15 | 398 | int triggerpin, ret; |
f06fb3e9 | 399 | uint8_t triggerselect; |
3ba56876 | 400 | struct triggerinout triggerinout_conf; |
401 | struct triggerlut lut; | |
22f64ed8 | 402 | uint8_t regval; |
8256ed15 GS |
403 | uint8_t clock_bytes[sizeof(clockselect)]; |
404 | size_t clock_idx; | |
3ba56876 | 405 | |
3ba56876 | 406 | devc = sdi->priv; |
407 | ||
5e78a564 GS |
408 | /* |
409 | * Setup the device's samplerate from the value which up to now | |
410 | * just got checked and stored. As a byproduct this can pick and | |
411 | * send firmware to the device, reduce the number of available | |
412 | * logic channels, etc. | |
413 | * | |
414 | * Determine an acquisition timeout from optionally configured | |
415 | * sample count or time limits. Which depends on the samplerate. | |
416 | */ | |
417 | ret = sigma_set_samplerate(sdi); | |
418 | if (ret != SR_OK) | |
419 | return ret; | |
420 | ret = sigma_set_acquire_timeout(devc); | |
421 | if (ret != SR_OK) | |
422 | return ret; | |
423 | ||
3ba56876 | 424 | if (sigma_convert_trigger(sdi) != SR_OK) { |
425 | sr_err("Failed to configure triggers."); | |
426 | return SR_ERR; | |
427 | } | |
428 | ||
3ba56876 | 429 | /* Enter trigger programming mode. */ |
9fb4c632 | 430 | sigma_set_register(WRITE_TRIGGER_SELECT2, 0x20, devc); |
3ba56876 | 431 | |
f06fb3e9 | 432 | triggerselect = 0; |
5e78a564 | 433 | if (devc->samplerate >= SR_MHZ(100)) { |
f06fb3e9 | 434 | /* 100 and 200 MHz mode. */ |
9fb4c632 | 435 | sigma_set_register(WRITE_TRIGGER_SELECT2, 0x81, devc); |
3ba56876 | 436 | |
437 | /* Find which pin to trigger on from mask. */ | |
0a1f7b09 | 438 | for (triggerpin = 0; triggerpin < 8; triggerpin++) |
3ba56876 | 439 | if ((devc->trigger.risingmask | devc->trigger.fallingmask) & |
440 | (1 << triggerpin)) | |
441 | break; | |
442 | ||
443 | /* Set trigger pin and light LED on trigger. */ | |
444 | triggerselect = (1 << LEDSEL1) | (triggerpin & 0x7); | |
445 | ||
446 | /* Default rising edge. */ | |
447 | if (devc->trigger.fallingmask) | |
448 | triggerselect |= 1 << 3; | |
449 | ||
5e78a564 | 450 | } else if (devc->samplerate <= SR_MHZ(50)) { |
f06fb3e9 | 451 | /* All other modes. */ |
3ba56876 | 452 | sigma_build_basic_trigger(&lut, devc); |
453 | ||
454 | sigma_write_trigger_lut(&lut, devc); | |
455 | ||
456 | triggerselect = (1 << LEDSEL1) | (1 << LEDSEL0); | |
457 | } | |
458 | ||
459 | /* Setup trigger in and out pins to default values. */ | |
460 | memset(&triggerinout_conf, 0, sizeof(struct triggerinout)); | |
461 | triggerinout_conf.trgout_bytrigger = 1; | |
462 | triggerinout_conf.trgout_enable = 1; | |
463 | ||
464 | sigma_write_register(WRITE_TRIGGER_OPTION, | |
465 | (uint8_t *) &triggerinout_conf, | |
466 | sizeof(struct triggerinout), devc); | |
467 | ||
468 | /* Go back to normal mode. */ | |
9fb4c632 | 469 | sigma_set_register(WRITE_TRIGGER_SELECT2, triggerselect, devc); |
3ba56876 | 470 | |
471 | /* Set clock select register. */ | |
8256ed15 GS |
472 | clockselect.async = 0; |
473 | clockselect.fraction = 1 - 1; /* Divider 1. */ | |
474 | clockselect.disabled_channels = 0x0000; /* All channels enabled. */ | |
5e78a564 | 475 | if (devc->samplerate == SR_MHZ(200)) { |
3ba56876 | 476 | /* Enable 4 channels. */ |
8256ed15 | 477 | clockselect.disabled_channels = 0xf0ff; |
5e78a564 | 478 | } else if (devc->samplerate == SR_MHZ(100)) { |
3ba56876 | 479 | /* Enable 8 channels. */ |
8256ed15 GS |
480 | clockselect.disabled_channels = 0x00ff; |
481 | } else { | |
3ba56876 | 482 | /* |
8256ed15 GS |
483 | * 50 MHz mode, or fraction thereof. The 50MHz reference |
484 | * can get divided by any integer in the range 1 to 256. | |
485 | * Divider minus 1 gets written to the hardware. | |
486 | * (The driver lists a discrete set of sample rates, but | |
487 | * all of them fit the above description.) | |
3ba56876 | 488 | */ |
5e78a564 | 489 | clockselect.fraction = SR_MHZ(50) / devc->samplerate - 1; |
3ba56876 | 490 | } |
8256ed15 GS |
491 | clock_idx = 0; |
492 | clock_bytes[clock_idx++] = clockselect.async; | |
493 | clock_bytes[clock_idx++] = clockselect.fraction; | |
494 | clock_bytes[clock_idx++] = clockselect.disabled_channels & 0xff; | |
495 | clock_bytes[clock_idx++] = clockselect.disabled_channels >> 8; | |
496 | sigma_write_register(WRITE_CLOCK_SELECT, clock_bytes, clock_idx, devc); | |
3ba56876 | 497 | |
498 | /* Setup maximum post trigger time. */ | |
499 | sigma_set_register(WRITE_POST_TRIGGER, | |
500 | (devc->capture_ratio * 255) / 100, devc); | |
501 | ||
502 | /* Start acqusition. */ | |
22f64ed8 GS |
503 | regval = WMR_TRGRES | WMR_SDRAMWRITEEN; |
504 | #if ASIX_SIGMA_WITH_TRIGGER | |
505 | regval |= WMR_TRGEN; | |
506 | #endif | |
507 | sigma_set_register(WRITE_MODE, regval, devc); | |
3ba56876 | 508 | |
bee2b016 | 509 | std_session_send_df_header(sdi); |
3ba56876 | 510 | |
511 | /* Add capture source. */ | |
512 | sr_session_source_add(sdi->session, -1, 0, 10, sigma_receive_data, (void *)sdi); | |
513 | ||
514 | devc->state.state = SIGMA_CAPTURE; | |
515 | ||
516 | return SR_OK; | |
517 | } | |
518 | ||
695dc859 | 519 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
3ba56876 | 520 | { |
521 | struct dev_context *devc; | |
522 | ||
3ba56876 | 523 | devc = sdi->priv; |
3ba56876 | 524 | |
dde0175d GS |
525 | /* |
526 | * When acquisition is currently running, keep the receive | |
527 | * routine registered and have it stop the acquisition upon the | |
528 | * next invocation. Else unregister the receive routine here | |
529 | * already. The detour is required to have sample data retrieved | |
530 | * for forced acquisition stops. | |
531 | */ | |
532 | if (devc->state.state == SIGMA_CAPTURE) { | |
533 | devc->state.state = SIGMA_STOPPING; | |
534 | } else { | |
535 | devc->state.state = SIGMA_IDLE; | |
536 | sr_session_source_remove(sdi->session, -1); | |
537 | } | |
3ba56876 | 538 | |
539 | return SR_OK; | |
540 | } | |
541 | ||
dd5c48a6 | 542 | static struct sr_dev_driver asix_sigma_driver_info = { |
3ba56876 | 543 | .name = "asix-sigma", |
544 | .longname = "ASIX SIGMA/SIGMA2", | |
545 | .api_version = 1, | |
c2fdcc25 | 546 | .init = std_init, |
700d6b64 | 547 | .cleanup = std_cleanup, |
3ba56876 | 548 | .scan = scan, |
c01bf34c | 549 | .dev_list = std_dev_list, |
3ba56876 | 550 | .dev_clear = dev_clear, |
551 | .config_get = config_get, | |
552 | .config_set = config_set, | |
553 | .config_list = config_list, | |
554 | .dev_open = dev_open, | |
555 | .dev_close = dev_close, | |
556 | .dev_acquisition_start = dev_acquisition_start, | |
557 | .dev_acquisition_stop = dev_acquisition_stop, | |
558 | .context = NULL, | |
559 | }; | |
dd5c48a6 | 560 | SR_REGISTER_DEV_DRIVER(asix_sigma_driver_info); |