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Commit | Line | Data |
---|---|---|
28a35d8a | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
28a35d8a | 3 | * |
868501fa | 4 | * Copyright (C) 2010-2012 Håvard Espeland <gus@ping.uio.no>, |
911f1834 UH |
5 | * Copyright (C) 2010 Martin Stensgård <mastensg@ping.uio.no> |
6 | * Copyright (C) 2010 Carl Henrik Lunde <chlunde@ping.uio.no> | |
28a35d8a HE |
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 | ||
911f1834 | 22 | /* |
6352d030 | 23 | * ASIX SIGMA/SIGMA2 logic analyzer driver |
911f1834 UH |
24 | */ |
25 | ||
3bbd9849 UH |
26 | #include <glib.h> |
27 | #include <glib/gstdio.h> | |
28a35d8a HE |
28 | #include <ftdi.h> |
29 | #include <string.h> | |
45c59c8b BV |
30 | #include "libsigrok.h" |
31 | #include "libsigrok-internal.h" | |
28a35d8a HE |
32 | #include "asix-sigma.h" |
33 | ||
34 | #define USB_VENDOR 0xa600 | |
35 | #define USB_PRODUCT 0xa000 | |
36 | #define USB_DESCRIPTION "ASIX SIGMA" | |
37 | #define USB_VENDOR_NAME "ASIX" | |
38 | #define USB_MODEL_NAME "SIGMA" | |
39 | #define USB_MODEL_VERSION "" | |
c50277a6 | 40 | #define TRIGGER_TYPE "rf10" |
3f239f08 | 41 | #define NUM_CHANNELS 16 |
28a35d8a | 42 | |
ed300b9f | 43 | SR_PRIV struct sr_dev_driver asix_sigma_driver_info; |
a873c594 | 44 | static struct sr_dev_driver *di = &asix_sigma_driver_info; |
6078d2c9 | 45 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); |
28a35d8a | 46 | |
2c9c0df8 | 47 | static const uint64_t samplerates[] = { |
59df0c77 UH |
48 | SR_KHZ(200), |
49 | SR_KHZ(250), | |
50 | SR_KHZ(500), | |
51 | SR_MHZ(1), | |
52 | SR_MHZ(5), | |
53 | SR_MHZ(10), | |
54 | SR_MHZ(25), | |
55 | SR_MHZ(50), | |
56 | SR_MHZ(100), | |
57 | SR_MHZ(200), | |
28a35d8a HE |
58 | }; |
59 | ||
d261dbbf | 60 | /* |
ba7dd8bb | 61 | * Channel numbers seem to go from 1-16, according to this image: |
d261dbbf UH |
62 | * http://tools.asix.net/img/sigma_sigmacab_pins_720.jpg |
63 | * (the cable has two additional GND pins, and a TI and TO pin) | |
64 | */ | |
3f239f08 | 65 | static const char *channel_names[NUM_CHANNELS + 1] = { |
78693401 UH |
66 | "1", "2", "3", "4", "5", "6", "7", "8", |
67 | "9", "10", "11", "12", "13", "14", "15", "16", | |
464d12c7 KS |
68 | NULL, |
69 | }; | |
70 | ||
2c9c0df8 | 71 | static const int32_t hwcaps[] = { |
1953564a BV |
72 | SR_CONF_LOGIC_ANALYZER, |
73 | SR_CONF_SAMPLERATE, | |
38d32464 | 74 | SR_CONF_TRIGGER_TYPE, |
1953564a | 75 | SR_CONF_CAPTURE_RATIO, |
1953564a | 76 | SR_CONF_LIMIT_MSEC, |
28a35d8a HE |
77 | }; |
78 | ||
fefa1800 UH |
79 | /* Force the FPGA to reboot. */ |
80 | static uint8_t suicide[] = { | |
81 | 0x84, 0x84, 0x88, 0x84, 0x88, 0x84, 0x88, 0x84, | |
82 | }; | |
83 | ||
84 | /* Prepare to upload firmware (FPGA specific). */ | |
6078d2c9 | 85 | static uint8_t init_array[] = { |
fefa1800 UH |
86 | 0x03, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, |
87 | }; | |
88 | ||
89 | /* Initialize the logic analyzer mode. */ | |
90 | static uint8_t logic_mode_start[] = { | |
91 | 0x00, 0x40, 0x0f, 0x25, 0x35, 0x40, | |
92 | 0x2a, 0x3a, 0x40, 0x03, 0x20, 0x38, | |
93 | }; | |
94 | ||
eec5275e | 95 | static const char *firmware_files[] = { |
a8116d76 HE |
96 | "asix-sigma-50.fw", /* 50 MHz, supports 8 bit fractions */ |
97 | "asix-sigma-100.fw", /* 100 MHz */ | |
98 | "asix-sigma-200.fw", /* 200 MHz */ | |
ed09fd07 | 99 | "asix-sigma-50sync.fw", /* Synchronous clock from pin */ |
a8116d76 | 100 | "asix-sigma-phasor.fw", /* Frequency counter */ |
f6564c8d HE |
101 | }; |
102 | ||
0e1357e8 | 103 | static int sigma_read(void *buf, size_t size, struct dev_context *devc) |
28a35d8a HE |
104 | { |
105 | int ret; | |
fefa1800 | 106 | |
0e1357e8 | 107 | ret = ftdi_read_data(&devc->ftdic, (unsigned char *)buf, size); |
28a35d8a | 108 | if (ret < 0) { |
47f4f073 | 109 | sr_err("ftdi_read_data failed: %s", |
0e1357e8 | 110 | ftdi_get_error_string(&devc->ftdic)); |
28a35d8a HE |
111 | } |
112 | ||
113 | return ret; | |
114 | } | |
115 | ||
0e1357e8 | 116 | static int sigma_write(void *buf, size_t size, struct dev_context *devc) |
28a35d8a HE |
117 | { |
118 | int ret; | |
fefa1800 | 119 | |
0e1357e8 | 120 | ret = ftdi_write_data(&devc->ftdic, (unsigned char *)buf, size); |
28a35d8a | 121 | if (ret < 0) { |
47f4f073 | 122 | sr_err("ftdi_write_data failed: %s", |
0e1357e8 | 123 | ftdi_get_error_string(&devc->ftdic)); |
fefa1800 | 124 | } else if ((size_t) ret != size) { |
47f4f073 | 125 | sr_err("ftdi_write_data did not complete write."); |
28a35d8a HE |
126 | } |
127 | ||
128 | return ret; | |
129 | } | |
130 | ||
99965709 | 131 | static int sigma_write_register(uint8_t reg, uint8_t *data, size_t len, |
0e1357e8 | 132 | struct dev_context *devc) |
28a35d8a HE |
133 | { |
134 | size_t i; | |
135 | uint8_t buf[len + 2]; | |
136 | int idx = 0; | |
137 | ||
138 | buf[idx++] = REG_ADDR_LOW | (reg & 0xf); | |
139 | buf[idx++] = REG_ADDR_HIGH | (reg >> 4); | |
140 | ||
fefa1800 | 141 | for (i = 0; i < len; ++i) { |
28a35d8a HE |
142 | buf[idx++] = REG_DATA_LOW | (data[i] & 0xf); |
143 | buf[idx++] = REG_DATA_HIGH_WRITE | (data[i] >> 4); | |
144 | } | |
145 | ||
0e1357e8 | 146 | return sigma_write(buf, idx, devc); |
28a35d8a HE |
147 | } |
148 | ||
0e1357e8 | 149 | static int sigma_set_register(uint8_t reg, uint8_t value, struct dev_context *devc) |
28a35d8a | 150 | { |
0e1357e8 | 151 | return sigma_write_register(reg, &value, 1, devc); |
28a35d8a HE |
152 | } |
153 | ||
99965709 | 154 | static int sigma_read_register(uint8_t reg, uint8_t *data, size_t len, |
0e1357e8 | 155 | struct dev_context *devc) |
28a35d8a HE |
156 | { |
157 | uint8_t buf[3]; | |
fefa1800 | 158 | |
28a35d8a HE |
159 | buf[0] = REG_ADDR_LOW | (reg & 0xf); |
160 | buf[1] = REG_ADDR_HIGH | (reg >> 4); | |
28a35d8a HE |
161 | buf[2] = REG_READ_ADDR; |
162 | ||
0e1357e8 | 163 | sigma_write(buf, sizeof(buf), devc); |
28a35d8a | 164 | |
0e1357e8 | 165 | return sigma_read(data, len, devc); |
28a35d8a HE |
166 | } |
167 | ||
0e1357e8 | 168 | static uint8_t sigma_get_register(uint8_t reg, struct dev_context *devc) |
28a35d8a HE |
169 | { |
170 | uint8_t value; | |
fefa1800 | 171 | |
0e1357e8 | 172 | if (1 != sigma_read_register(reg, &value, 1, devc)) { |
47f4f073 | 173 | sr_err("sigma_get_register: 1 byte expected"); |
28a35d8a HE |
174 | return 0; |
175 | } | |
176 | ||
177 | return value; | |
178 | } | |
179 | ||
99965709 | 180 | static int sigma_read_pos(uint32_t *stoppos, uint32_t *triggerpos, |
0e1357e8 | 181 | struct dev_context *devc) |
28a35d8a HE |
182 | { |
183 | uint8_t buf[] = { | |
184 | REG_ADDR_LOW | READ_TRIGGER_POS_LOW, | |
185 | ||
186 | REG_READ_ADDR | NEXT_REG, | |
187 | REG_READ_ADDR | NEXT_REG, | |
188 | REG_READ_ADDR | NEXT_REG, | |
189 | REG_READ_ADDR | NEXT_REG, | |
190 | REG_READ_ADDR | NEXT_REG, | |
191 | REG_READ_ADDR | NEXT_REG, | |
192 | }; | |
28a35d8a HE |
193 | uint8_t result[6]; |
194 | ||
0e1357e8 | 195 | sigma_write(buf, sizeof(buf), devc); |
28a35d8a | 196 | |
0e1357e8 | 197 | sigma_read(result, sizeof(result), devc); |
28a35d8a HE |
198 | |
199 | *triggerpos = result[0] | (result[1] << 8) | (result[2] << 16); | |
200 | *stoppos = result[3] | (result[4] << 8) | (result[5] << 16); | |
201 | ||
57bbf56b HE |
202 | /* Not really sure why this must be done, but according to spec. */ |
203 | if ((--*stoppos & 0x1ff) == 0x1ff) | |
204 | stoppos -= 64; | |
205 | ||
206 | if ((*--triggerpos & 0x1ff) == 0x1ff) | |
207 | triggerpos -= 64; | |
208 | ||
28a35d8a HE |
209 | return 1; |
210 | } | |
211 | ||
99965709 | 212 | static int sigma_read_dram(uint16_t startchunk, size_t numchunks, |
0e1357e8 | 213 | uint8_t *data, struct dev_context *devc) |
28a35d8a HE |
214 | { |
215 | size_t i; | |
216 | uint8_t buf[4096]; | |
217 | int idx = 0; | |
218 | ||
fefa1800 | 219 | /* Send the startchunk. Index start with 1. */ |
28a35d8a HE |
220 | buf[0] = startchunk >> 8; |
221 | buf[1] = startchunk & 0xff; | |
0e1357e8 | 222 | sigma_write_register(WRITE_MEMROW, buf, 2, devc); |
28a35d8a | 223 | |
fefa1800 | 224 | /* Read the DRAM. */ |
28a35d8a HE |
225 | buf[idx++] = REG_DRAM_BLOCK; |
226 | buf[idx++] = REG_DRAM_WAIT_ACK; | |
227 | ||
228 | for (i = 0; i < numchunks; ++i) { | |
fefa1800 UH |
229 | /* Alternate bit to copy from DRAM to cache. */ |
230 | if (i != (numchunks - 1)) | |
231 | buf[idx++] = REG_DRAM_BLOCK | (((i + 1) % 2) << 4); | |
28a35d8a HE |
232 | |
233 | buf[idx++] = REG_DRAM_BLOCK_DATA | ((i % 2) << 4); | |
234 | ||
fefa1800 | 235 | if (i != (numchunks - 1)) |
28a35d8a HE |
236 | buf[idx++] = REG_DRAM_WAIT_ACK; |
237 | } | |
238 | ||
0e1357e8 | 239 | sigma_write(buf, idx, devc); |
28a35d8a | 240 | |
0e1357e8 | 241 | return sigma_read(data, numchunks * CHUNK_SIZE, devc); |
28a35d8a HE |
242 | } |
243 | ||
4ae1f451 | 244 | /* Upload trigger look-up tables to Sigma. */ |
0e1357e8 | 245 | static int sigma_write_trigger_lut(struct triggerlut *lut, struct dev_context *devc) |
ee492173 HE |
246 | { |
247 | int i; | |
248 | uint8_t tmp[2]; | |
249 | uint16_t bit; | |
250 | ||
251 | /* Transpose the table and send to Sigma. */ | |
252 | for (i = 0; i < 16; ++i) { | |
253 | bit = 1 << i; | |
254 | ||
255 | tmp[0] = tmp[1] = 0; | |
256 | ||
257 | if (lut->m2d[0] & bit) | |
258 | tmp[0] |= 0x01; | |
259 | if (lut->m2d[1] & bit) | |
260 | tmp[0] |= 0x02; | |
261 | if (lut->m2d[2] & bit) | |
262 | tmp[0] |= 0x04; | |
263 | if (lut->m2d[3] & bit) | |
264 | tmp[0] |= 0x08; | |
265 | ||
266 | if (lut->m3 & bit) | |
267 | tmp[0] |= 0x10; | |
268 | if (lut->m3s & bit) | |
269 | tmp[0] |= 0x20; | |
270 | if (lut->m4 & bit) | |
271 | tmp[0] |= 0x40; | |
272 | ||
273 | if (lut->m0d[0] & bit) | |
274 | tmp[1] |= 0x01; | |
275 | if (lut->m0d[1] & bit) | |
276 | tmp[1] |= 0x02; | |
277 | if (lut->m0d[2] & bit) | |
278 | tmp[1] |= 0x04; | |
279 | if (lut->m0d[3] & bit) | |
280 | tmp[1] |= 0x08; | |
281 | ||
282 | if (lut->m1d[0] & bit) | |
283 | tmp[1] |= 0x10; | |
284 | if (lut->m1d[1] & bit) | |
285 | tmp[1] |= 0x20; | |
286 | if (lut->m1d[2] & bit) | |
287 | tmp[1] |= 0x40; | |
288 | if (lut->m1d[3] & bit) | |
289 | tmp[1] |= 0x80; | |
290 | ||
99965709 | 291 | sigma_write_register(WRITE_TRIGGER_SELECT0, tmp, sizeof(tmp), |
0e1357e8 BV |
292 | devc); |
293 | sigma_set_register(WRITE_TRIGGER_SELECT1, 0x30 | i, devc); | |
ee492173 HE |
294 | } |
295 | ||
296 | /* Send the parameters */ | |
297 | sigma_write_register(WRITE_TRIGGER_SELECT0, (uint8_t *) &lut->params, | |
0e1357e8 | 298 | sizeof(lut->params), devc); |
ee492173 | 299 | |
e46b8fb1 | 300 | return SR_OK; |
ee492173 HE |
301 | } |
302 | ||
fefa1800 | 303 | /* Generate the bitbang stream for programming the FPGA. */ |
28a35d8a | 304 | static int bin2bitbang(const char *filename, |
fefa1800 | 305 | unsigned char **buf, size_t *buf_size) |
28a35d8a | 306 | { |
fefa1800 | 307 | FILE *f; |
e3fff420 | 308 | unsigned long file_size; |
28a35d8a HE |
309 | unsigned long offset = 0; |
310 | unsigned char *p; | |
e3fff420 HE |
311 | uint8_t *firmware; |
312 | unsigned long fwsize = 0; | |
28a35d8a HE |
313 | const int buffer_size = 65536; |
314 | size_t i; | |
e3fff420 | 315 | int c, bit, v; |
fefa1800 | 316 | uint32_t imm = 0x3f6df2ab; |
28a35d8a | 317 | |
868d8cef | 318 | f = g_fopen(filename, "rb"); |
28a35d8a | 319 | if (!f) { |
47f4f073 | 320 | sr_err("g_fopen(\"%s\", \"rb\")", filename); |
b53738ba | 321 | return SR_ERR; |
28a35d8a HE |
322 | } |
323 | ||
324 | if (-1 == fseek(f, 0, SEEK_END)) { | |
47f4f073 | 325 | sr_err("fseek on %s failed", filename); |
28a35d8a | 326 | fclose(f); |
b53738ba | 327 | return SR_ERR; |
28a35d8a HE |
328 | } |
329 | ||
330 | file_size = ftell(f); | |
331 | ||
332 | fseek(f, 0, SEEK_SET); | |
333 | ||
b53738ba | 334 | if (!(firmware = g_try_malloc(buffer_size))) { |
47f4f073 | 335 | sr_err("%s: firmware malloc failed", __func__); |
12ad53f5 | 336 | fclose(f); |
b53738ba | 337 | return SR_ERR_MALLOC; |
28a35d8a HE |
338 | } |
339 | ||
28a35d8a HE |
340 | while ((c = getc(f)) != EOF) { |
341 | imm = (imm + 0xa853753) % 177 + (imm * 0x8034052); | |
e3fff420 | 342 | firmware[fwsize++] = c ^ imm; |
28a35d8a HE |
343 | } |
344 | fclose(f); | |
345 | ||
e3fff420 | 346 | if(fwsize != file_size) { |
47f4f073 | 347 | sr_err("%s: Error reading firmware", filename); |
e3fff420 HE |
348 | fclose(f); |
349 | g_free(firmware); | |
350 | return SR_ERR; | |
28a35d8a HE |
351 | } |
352 | ||
28a35d8a HE |
353 | *buf_size = fwsize * 2 * 8; |
354 | ||
b53738ba | 355 | *buf = p = (unsigned char *)g_try_malloc(*buf_size); |
28a35d8a | 356 | if (!p) { |
47f4f073 | 357 | sr_err("%s: buf/p malloc failed", __func__); |
12ad53f5 | 358 | g_free(firmware); |
b53738ba | 359 | return SR_ERR_MALLOC; |
28a35d8a HE |
360 | } |
361 | ||
362 | for (i = 0; i < fwsize; ++i) { | |
28a35d8a | 363 | for (bit = 7; bit >= 0; --bit) { |
fefa1800 | 364 | v = firmware[i] & 1 << bit ? 0x40 : 0x00; |
28a35d8a HE |
365 | p[offset++] = v | 0x01; |
366 | p[offset++] = v; | |
367 | } | |
368 | } | |
369 | ||
370 | g_free(firmware); | |
371 | ||
372 | if (offset != *buf_size) { | |
373 | g_free(*buf); | |
47f4f073 | 374 | sr_err("Error reading firmware %s " |
0aeb0ccd | 375 | "offset=%ld, file_size=%ld, buf_size=%zd.", |
133a37bf | 376 | filename, offset, file_size, *buf_size); |
28a35d8a | 377 | |
b53738ba | 378 | return SR_ERR; |
28a35d8a HE |
379 | } |
380 | ||
b53738ba | 381 | return SR_OK; |
28a35d8a HE |
382 | } |
383 | ||
3678cf73 | 384 | static void clear_helper(void *priv) |
0448d110 | 385 | { |
0e1357e8 | 386 | struct dev_context *devc; |
ce4d26dd | 387 | |
3678cf73 | 388 | devc = priv; |
0e1357e8 | 389 | |
3678cf73 UH |
390 | ftdi_deinit(&devc->ftdic); |
391 | } | |
0448d110 | 392 | |
3b412e3a | 393 | static int dev_clear(void) |
3678cf73 UH |
394 | { |
395 | return std_dev_clear(di, clear_helper); | |
0448d110 BV |
396 | } |
397 | ||
6078d2c9 | 398 | static int init(struct sr_context *sr_ctx) |
61136ea6 | 399 | { |
f6beaac5 | 400 | return std_init(sr_ctx, di, LOG_PREFIX); |
61136ea6 BV |
401 | } |
402 | ||
6078d2c9 | 403 | static GSList *scan(GSList *options) |
28a35d8a | 404 | { |
d68e2d1a | 405 | struct sr_dev_inst *sdi; |
ba7dd8bb | 406 | struct sr_channel *ch; |
0e1357e8 BV |
407 | struct drv_context *drvc; |
408 | struct dev_context *devc; | |
0448d110 | 409 | GSList *devices; |
e3fff420 HE |
410 | struct ftdi_device_list *devlist; |
411 | char serial_txt[10]; | |
412 | uint32_t serial; | |
87ca93c5 | 413 | int ret, i; |
28a35d8a | 414 | |
0448d110 | 415 | (void)options; |
64d33dc2 | 416 | |
a873c594 | 417 | drvc = di->priv; |
4b97c74e | 418 | |
0448d110 | 419 | devices = NULL; |
4b97c74e | 420 | |
0e1357e8 | 421 | if (!(devc = g_try_malloc(sizeof(struct dev_context)))) { |
47f4f073 | 422 | sr_err("%s: devc malloc failed", __func__); |
0448d110 | 423 | return NULL; |
b53738ba | 424 | } |
99965709 | 425 | |
0e1357e8 | 426 | ftdi_init(&devc->ftdic); |
28a35d8a | 427 | |
fefa1800 | 428 | /* Look for SIGMAs. */ |
e3fff420 | 429 | |
0e1357e8 | 430 | if ((ret = ftdi_usb_find_all(&devc->ftdic, &devlist, |
eec944c5 BV |
431 | USB_VENDOR, USB_PRODUCT)) <= 0) { |
432 | if (ret < 0) | |
433 | sr_err("ftdi_usb_find_all(): %d", ret); | |
99965709 | 434 | goto free; |
eec944c5 | 435 | } |
99965709 | 436 | |
e3fff420 | 437 | /* Make sure it's a version 1 or 2 SIGMA. */ |
0e1357e8 | 438 | ftdi_usb_get_strings(&devc->ftdic, devlist->dev, NULL, 0, NULL, 0, |
6352d030 | 439 | serial_txt, sizeof(serial_txt)); |
e3fff420 HE |
440 | sscanf(serial_txt, "%x", &serial); |
441 | ||
6352d030 | 442 | if (serial < 0xa6010000 || serial > 0xa602ffff) { |
47f4f073 UH |
443 | sr_err("Only SIGMA and SIGMA2 are supported " |
444 | "in this version of libsigrok."); | |
e3fff420 HE |
445 | goto free; |
446 | } | |
447 | ||
448 | sr_info("Found ASIX SIGMA - Serial: %s", serial_txt); | |
449 | ||
0e1357e8 BV |
450 | devc->cur_samplerate = 0; |
451 | devc->period_ps = 0; | |
452 | devc->limit_msec = 0; | |
453 | devc->cur_firmware = -1; | |
ba7dd8bb | 454 | devc->num_channels = 0; |
0e1357e8 BV |
455 | devc->samples_per_event = 0; |
456 | devc->capture_ratio = 50; | |
457 | devc->use_triggers = 0; | |
28a35d8a | 458 | |
fefa1800 | 459 | /* Register SIGMA device. */ |
d68e2d1a UH |
460 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INITIALIZING, USB_VENDOR_NAME, |
461 | USB_MODEL_NAME, USB_MODEL_VERSION))) { | |
47f4f073 | 462 | sr_err("%s: sdi was NULL", __func__); |
99965709 | 463 | goto free; |
d68e2d1a | 464 | } |
a873c594 | 465 | sdi->driver = di; |
87ca93c5 | 466 | |
ba7dd8bb | 467 | for (i = 0; channel_names[i]; i++) { |
3f239f08 | 468 | if (!(ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, |
ba7dd8bb | 469 | channel_names[i]))) |
87ca93c5 | 470 | return NULL; |
ba7dd8bb | 471 | sdi->channels = g_slist_append(sdi->channels, ch); |
87ca93c5 BV |
472 | } |
473 | ||
0448d110 | 474 | devices = g_slist_append(devices, sdi); |
0e1357e8 BV |
475 | drvc->instances = g_slist_append(drvc->instances, sdi); |
476 | sdi->priv = devc; | |
28a35d8a | 477 | |
fefa1800 | 478 | /* We will open the device again when we need it. */ |
e3fff420 | 479 | ftdi_list_free(&devlist); |
28a35d8a | 480 | |
0448d110 | 481 | return devices; |
ea9cfed7 | 482 | |
99965709 | 483 | free: |
0e1357e8 BV |
484 | ftdi_deinit(&devc->ftdic); |
485 | g_free(devc); | |
0448d110 | 486 | return NULL; |
28a35d8a HE |
487 | } |
488 | ||
6078d2c9 | 489 | static GSList *dev_list(void) |
811deee4 | 490 | { |
0e94d524 | 491 | return ((struct drv_context *)(di->priv))->instances; |
811deee4 BV |
492 | } |
493 | ||
0e1357e8 | 494 | static int upload_firmware(int firmware_idx, struct dev_context *devc) |
28a35d8a HE |
495 | { |
496 | int ret; | |
497 | unsigned char *buf; | |
498 | unsigned char pins; | |
499 | size_t buf_size; | |
28a35d8a | 500 | unsigned char result[32]; |
e8397563 | 501 | char firmware_path[128]; |
28a35d8a | 502 | |
fefa1800 | 503 | /* Make sure it's an ASIX SIGMA. */ |
0e1357e8 | 504 | if ((ret = ftdi_usb_open_desc(&devc->ftdic, |
28a35d8a | 505 | USB_VENDOR, USB_PRODUCT, USB_DESCRIPTION, NULL)) < 0) { |
47f4f073 | 506 | sr_err("ftdi_usb_open failed: %s", |
0e1357e8 | 507 | ftdi_get_error_string(&devc->ftdic)); |
28a35d8a HE |
508 | return 0; |
509 | } | |
510 | ||
0e1357e8 | 511 | if ((ret = ftdi_set_bitmode(&devc->ftdic, 0xdf, BITMODE_BITBANG)) < 0) { |
47f4f073 | 512 | sr_err("ftdi_set_bitmode failed: %s", |
0e1357e8 | 513 | ftdi_get_error_string(&devc->ftdic)); |
28a35d8a HE |
514 | return 0; |
515 | } | |
516 | ||
fefa1800 | 517 | /* Four times the speed of sigmalogan - Works well. */ |
0e1357e8 | 518 | if ((ret = ftdi_set_baudrate(&devc->ftdic, 750000)) < 0) { |
47f4f073 | 519 | sr_err("ftdi_set_baudrate failed: %s", |
0e1357e8 | 520 | ftdi_get_error_string(&devc->ftdic)); |
28a35d8a HE |
521 | return 0; |
522 | } | |
523 | ||
fefa1800 | 524 | /* Force the FPGA to reboot. */ |
0e1357e8 BV |
525 | sigma_write(suicide, sizeof(suicide), devc); |
526 | sigma_write(suicide, sizeof(suicide), devc); | |
527 | sigma_write(suicide, sizeof(suicide), devc); | |
528 | sigma_write(suicide, sizeof(suicide), devc); | |
28a35d8a | 529 | |
fefa1800 | 530 | /* Prepare to upload firmware (FPGA specific). */ |
6078d2c9 | 531 | sigma_write(init_array, sizeof(init_array), devc); |
28a35d8a | 532 | |
0e1357e8 | 533 | ftdi_usb_purge_buffers(&devc->ftdic); |
28a35d8a | 534 | |
fefa1800 | 535 | /* Wait until the FPGA asserts INIT_B. */ |
28a35d8a | 536 | while (1) { |
0e1357e8 | 537 | ret = sigma_read(result, 1, devc); |
28a35d8a HE |
538 | if (result[0] & 0x20) |
539 | break; | |
540 | } | |
541 | ||
9ddb2a12 | 542 | /* Prepare firmware. */ |
e8397563 | 543 | snprintf(firmware_path, sizeof(firmware_path), "%s/%s", FIRMWARE_DIR, |
f6564c8d HE |
544 | firmware_files[firmware_idx]); |
545 | ||
b53738ba | 546 | if ((ret = bin2bitbang(firmware_path, &buf, &buf_size)) != SR_OK) { |
47f4f073 | 547 | sr_err("An error occured while reading the firmware: %s", |
133a37bf | 548 | firmware_path); |
b53738ba | 549 | return ret; |
28a35d8a HE |
550 | } |
551 | ||
fefa1800 | 552 | /* Upload firmare. */ |
47f4f073 | 553 | sr_info("Uploading firmware file '%s'.", firmware_files[firmware_idx]); |
0e1357e8 | 554 | sigma_write(buf, buf_size, devc); |
28a35d8a HE |
555 | |
556 | g_free(buf); | |
557 | ||
0e1357e8 | 558 | if ((ret = ftdi_set_bitmode(&devc->ftdic, 0x00, BITMODE_RESET)) < 0) { |
47f4f073 | 559 | sr_err("ftdi_set_bitmode failed: %s", |
0e1357e8 | 560 | ftdi_get_error_string(&devc->ftdic)); |
e46b8fb1 | 561 | return SR_ERR; |
28a35d8a HE |
562 | } |
563 | ||
0e1357e8 | 564 | ftdi_usb_purge_buffers(&devc->ftdic); |
28a35d8a | 565 | |
fefa1800 | 566 | /* Discard garbage. */ |
0e1357e8 | 567 | while (1 == sigma_read(&pins, 1, devc)) |
28a35d8a HE |
568 | ; |
569 | ||
fefa1800 | 570 | /* Initialize the logic analyzer mode. */ |
0e1357e8 | 571 | sigma_write(logic_mode_start, sizeof(logic_mode_start), devc); |
28a35d8a | 572 | |
fefa1800 | 573 | /* Expect a 3 byte reply. */ |
0e1357e8 | 574 | ret = sigma_read(result, 3, devc); |
28a35d8a HE |
575 | if (ret != 3 || |
576 | result[0] != 0xa6 || result[1] != 0x55 || result[2] != 0xaa) { | |
47f4f073 | 577 | sr_err("Configuration failed. Invalid reply received."); |
e46b8fb1 | 578 | return SR_ERR; |
28a35d8a HE |
579 | } |
580 | ||
0e1357e8 | 581 | devc->cur_firmware = firmware_idx; |
f6564c8d | 582 | |
47f4f073 | 583 | sr_info("Firmware uploaded."); |
e3fff420 | 584 | |
e46b8fb1 | 585 | return SR_OK; |
f6564c8d HE |
586 | } |
587 | ||
6078d2c9 | 588 | static int dev_open(struct sr_dev_inst *sdi) |
f6564c8d | 589 | { |
0e1357e8 | 590 | struct dev_context *devc; |
f6564c8d HE |
591 | int ret; |
592 | ||
0e1357e8 | 593 | devc = sdi->priv; |
99965709 | 594 | |
9ddb2a12 | 595 | /* Make sure it's an ASIX SIGMA. */ |
0e1357e8 | 596 | if ((ret = ftdi_usb_open_desc(&devc->ftdic, |
f6564c8d HE |
597 | USB_VENDOR, USB_PRODUCT, USB_DESCRIPTION, NULL)) < 0) { |
598 | ||
47f4f073 | 599 | sr_err("ftdi_usb_open failed: %s", |
0e1357e8 | 600 | ftdi_get_error_string(&devc->ftdic)); |
f6564c8d HE |
601 | |
602 | return 0; | |
603 | } | |
28a35d8a | 604 | |
5a2326a7 | 605 | sdi->status = SR_ST_ACTIVE; |
28a35d8a | 606 | |
e46b8fb1 | 607 | return SR_OK; |
f6564c8d HE |
608 | } |
609 | ||
6f4b1868 | 610 | static int set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate) |
f6564c8d | 611 | { |
2c9c0df8 BV |
612 | struct dev_context *devc; |
613 | unsigned int i; | |
614 | int ret; | |
f6564c8d | 615 | |
2c9c0df8 | 616 | devc = sdi->priv; |
f4abaa9f UH |
617 | ret = SR_OK; |
618 | ||
2c9c0df8 BV |
619 | for (i = 0; i < ARRAY_SIZE(samplerates); i++) { |
620 | if (samplerates[i] == samplerate) | |
f6564c8d HE |
621 | break; |
622 | } | |
2c9c0df8 | 623 | if (samplerates[i] == 0) |
e46b8fb1 | 624 | return SR_ERR_SAMPLERATE; |
f6564c8d | 625 | |
59df0c77 | 626 | if (samplerate <= SR_MHZ(50)) { |
0e1357e8 | 627 | ret = upload_firmware(0, devc); |
ba7dd8bb | 628 | devc->num_channels = 16; |
e8397563 | 629 | } |
59df0c77 | 630 | if (samplerate == SR_MHZ(100)) { |
0e1357e8 | 631 | ret = upload_firmware(1, devc); |
ba7dd8bb | 632 | devc->num_channels = 8; |
f78898e9 | 633 | } |
59df0c77 | 634 | else if (samplerate == SR_MHZ(200)) { |
0e1357e8 | 635 | ret = upload_firmware(2, devc); |
ba7dd8bb | 636 | devc->num_channels = 4; |
f78898e9 | 637 | } |
f6564c8d | 638 | |
0e1357e8 | 639 | devc->cur_samplerate = samplerate; |
5edc02c7 | 640 | devc->period_ps = 1000000000000ULL / samplerate; |
ba7dd8bb | 641 | devc->samples_per_event = 16 / devc->num_channels; |
0e1357e8 | 642 | devc->state.state = SIGMA_IDLE; |
f6564c8d | 643 | |
e8397563 | 644 | return ret; |
28a35d8a HE |
645 | } |
646 | ||
c53d793f HE |
647 | /* |
648 | * In 100 and 200 MHz mode, only a single pin rising/falling can be | |
649 | * set as trigger. In other modes, two rising/falling triggers can be set, | |
ba7dd8bb | 650 | * in addition to value/mask trigger for any number of channels. |
c53d793f HE |
651 | * |
652 | * The Sigma supports complex triggers using boolean expressions, but this | |
653 | * has not been implemented yet. | |
654 | */ | |
ba7dd8bb | 655 | static int configure_channels(const struct sr_dev_inst *sdi) |
57bbf56b | 656 | { |
0e1357e8 | 657 | struct dev_context *devc = sdi->priv; |
ba7dd8bb | 658 | const struct sr_channel *ch; |
1b79df2f | 659 | const GSList *l; |
57bbf56b | 660 | int trigger_set = 0; |
ba7dd8bb | 661 | int channelbit; |
57bbf56b | 662 | |
0e1357e8 | 663 | memset(&devc->trigger, 0, sizeof(struct sigma_trigger)); |
eec5275e | 664 | |
ba7dd8bb UH |
665 | for (l = sdi->channels; l; l = l->next) { |
666 | ch = (struct sr_channel *)l->data; | |
667 | channelbit = 1 << (ch->index); | |
57bbf56b | 668 | |
ba7dd8bb | 669 | if (!ch->enabled || !ch->trigger) |
57bbf56b HE |
670 | continue; |
671 | ||
0e1357e8 | 672 | if (devc->cur_samplerate >= SR_MHZ(100)) { |
c53d793f | 673 | /* Fast trigger support. */ |
ee492173 | 674 | if (trigger_set) { |
47f4f073 UH |
675 | sr_err("Only a single pin trigger in 100 and " |
676 | "200MHz mode is supported."); | |
e46b8fb1 | 677 | return SR_ERR; |
ee492173 | 678 | } |
ba7dd8bb UH |
679 | if (ch->trigger[0] == 'f') |
680 | devc->trigger.fallingmask |= channelbit; | |
681 | else if (ch->trigger[0] == 'r') | |
682 | devc->trigger.risingmask |= channelbit; | |
ee492173 | 683 | else { |
47f4f073 UH |
684 | sr_err("Only rising/falling trigger in 100 " |
685 | "and 200MHz mode is supported."); | |
e46b8fb1 | 686 | return SR_ERR; |
ee492173 | 687 | } |
57bbf56b | 688 | |
c53d793f | 689 | ++trigger_set; |
ee492173 | 690 | } else { |
c53d793f | 691 | /* Simple trigger support (event). */ |
ba7dd8bb UH |
692 | if (ch->trigger[0] == '1') { |
693 | devc->trigger.simplevalue |= channelbit; | |
694 | devc->trigger.simplemask |= channelbit; | |
c53d793f | 695 | } |
ba7dd8bb UH |
696 | else if (ch->trigger[0] == '0') { |
697 | devc->trigger.simplevalue &= ~channelbit; | |
698 | devc->trigger.simplemask |= channelbit; | |
c53d793f | 699 | } |
ba7dd8bb UH |
700 | else if (ch->trigger[0] == 'f') { |
701 | devc->trigger.fallingmask |= channelbit; | |
c53d793f HE |
702 | ++trigger_set; |
703 | } | |
ba7dd8bb UH |
704 | else if (ch->trigger[0] == 'r') { |
705 | devc->trigger.risingmask |= channelbit; | |
c53d793f HE |
706 | ++trigger_set; |
707 | } | |
ee492173 | 708 | |
ea9cfed7 UH |
709 | /* |
710 | * Actually, Sigma supports 2 rising/falling triggers, | |
711 | * but they are ORed and the current trigger syntax | |
712 | * does not permit ORed triggers. | |
713 | */ | |
98b8cbc1 | 714 | if (trigger_set > 1) { |
47f4f073 UH |
715 | sr_err("Only 1 rising/falling trigger " |
716 | "is supported."); | |
e46b8fb1 | 717 | return SR_ERR; |
ee492173 | 718 | } |
ee492173 | 719 | } |
5b5ea7c6 HE |
720 | |
721 | if (trigger_set) | |
0e1357e8 | 722 | devc->use_triggers = 1; |
57bbf56b HE |
723 | } |
724 | ||
e46b8fb1 | 725 | return SR_OK; |
57bbf56b HE |
726 | } |
727 | ||
6078d2c9 | 728 | static int dev_close(struct sr_dev_inst *sdi) |
28a35d8a | 729 | { |
0e1357e8 | 730 | struct dev_context *devc; |
28a35d8a | 731 | |
961009b0 | 732 | devc = sdi->priv; |
697785d1 UH |
733 | |
734 | /* TODO */ | |
735 | if (sdi->status == SR_ST_ACTIVE) | |
0e1357e8 | 736 | ftdi_usb_close(&devc->ftdic); |
697785d1 UH |
737 | |
738 | sdi->status = SR_ST_INACTIVE; | |
739 | ||
740 | return SR_OK; | |
28a35d8a HE |
741 | } |
742 | ||
6078d2c9 | 743 | static int cleanup(void) |
28a35d8a | 744 | { |
3b412e3a | 745 | return dev_clear(); |
28a35d8a HE |
746 | } |
747 | ||
8f996b89 | 748 | static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 749 | const struct sr_channel_group *cg) |
28a35d8a | 750 | { |
0e1357e8 | 751 | struct dev_context *devc; |
99965709 | 752 | |
53b4680f | 753 | (void)cg; |
8f996b89 | 754 | |
035a1078 | 755 | switch (id) { |
123e1313 | 756 | case SR_CONF_SAMPLERATE: |
41479605 | 757 | if (sdi) { |
0e1357e8 | 758 | devc = sdi->priv; |
2c9c0df8 | 759 | *data = g_variant_new_uint64(devc->cur_samplerate); |
41479605 BV |
760 | } else |
761 | return SR_ERR; | |
28a35d8a | 762 | break; |
d7bbecfd | 763 | default: |
bd6fbf62 | 764 | return SR_ERR_NA; |
28a35d8a HE |
765 | } |
766 | ||
41479605 | 767 | return SR_OK; |
28a35d8a HE |
768 | } |
769 | ||
8f996b89 | 770 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 771 | const struct sr_channel_group *cg) |
28a35d8a | 772 | { |
0e1357e8 | 773 | struct dev_context *devc; |
28a35d8a | 774 | int ret; |
f6564c8d | 775 | |
53b4680f | 776 | (void)cg; |
8f996b89 | 777 | |
e73ffd42 BV |
778 | if (sdi->status != SR_ST_ACTIVE) |
779 | return SR_ERR_DEV_CLOSED; | |
780 | ||
0e1357e8 | 781 | devc = sdi->priv; |
99965709 | 782 | |
035a1078 | 783 | if (id == SR_CONF_SAMPLERATE) { |
2c9c0df8 | 784 | ret = set_samplerate(sdi, g_variant_get_uint64(data)); |
035a1078 | 785 | } else if (id == SR_CONF_LIMIT_MSEC) { |
2c9c0df8 | 786 | devc->limit_msec = g_variant_get_uint64(data); |
0e1357e8 | 787 | if (devc->limit_msec > 0) |
e46b8fb1 | 788 | ret = SR_OK; |
94ba4bd6 | 789 | else |
e46b8fb1 | 790 | ret = SR_ERR; |
035a1078 | 791 | } else if (id == SR_CONF_CAPTURE_RATIO) { |
2c9c0df8 | 792 | devc->capture_ratio = g_variant_get_uint64(data); |
0e1357e8 | 793 | if (devc->capture_ratio < 0 || devc->capture_ratio > 100) |
e46b8fb1 | 794 | ret = SR_ERR; |
94ba4bd6 | 795 | else |
e46b8fb1 | 796 | ret = SR_OK; |
28a35d8a | 797 | } else { |
bd6fbf62 | 798 | ret = SR_ERR_NA; |
28a35d8a HE |
799 | } |
800 | ||
801 | return ret; | |
802 | } | |
803 | ||
8f996b89 | 804 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 805 | const struct sr_channel_group *cg) |
a1c743fc | 806 | { |
2c9c0df8 BV |
807 | GVariant *gvar; |
808 | GVariantBuilder gvb; | |
a1c743fc BV |
809 | |
810 | (void)sdi; | |
53b4680f | 811 | (void)cg; |
a1c743fc BV |
812 | |
813 | switch (key) { | |
9a6517d1 | 814 | case SR_CONF_DEVICE_OPTIONS: |
2c9c0df8 BV |
815 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, |
816 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
9a6517d1 | 817 | break; |
a1c743fc | 818 | case SR_CONF_SAMPLERATE: |
2c9c0df8 BV |
819 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); |
820 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
821 | ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
822 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
823 | *data = g_variant_builder_end(&gvb); | |
a1c743fc | 824 | break; |
c50277a6 | 825 | case SR_CONF_TRIGGER_TYPE: |
2c9c0df8 | 826 | *data = g_variant_new_string(TRIGGER_TYPE); |
c50277a6 | 827 | break; |
a1c743fc | 828 | default: |
bd6fbf62 | 829 | return SR_ERR_NA; |
a1c743fc BV |
830 | } |
831 | ||
832 | return SR_OK; | |
833 | } | |
834 | ||
36b1c8e6 HE |
835 | /* Software trigger to determine exact trigger position. */ |
836 | static int get_trigger_offset(uint16_t *samples, uint16_t last_sample, | |
837 | struct sigma_trigger *t) | |
838 | { | |
839 | int i; | |
840 | ||
841 | for (i = 0; i < 8; ++i) { | |
842 | if (i > 0) | |
843 | last_sample = samples[i-1]; | |
844 | ||
845 | /* Simple triggers. */ | |
846 | if ((samples[i] & t->simplemask) != t->simplevalue) | |
847 | continue; | |
848 | ||
849 | /* Rising edge. */ | |
850 | if ((last_sample & t->risingmask) != 0 || (samples[i] & | |
851 | t->risingmask) != t->risingmask) | |
852 | continue; | |
853 | ||
854 | /* Falling edge. */ | |
bdfc7a89 HE |
855 | if ((last_sample & t->fallingmask) != t->fallingmask || |
856 | (samples[i] & t->fallingmask) != 0) | |
36b1c8e6 HE |
857 | continue; |
858 | ||
859 | break; | |
860 | } | |
861 | ||
862 | /* If we did not match, return original trigger pos. */ | |
863 | return i & 0x7; | |
864 | } | |
865 | ||
28a35d8a | 866 | /* |
fefa1800 UH |
867 | * Decode chunk of 1024 bytes, 64 clusters, 7 events per cluster. |
868 | * Each event is 20ns apart, and can contain multiple samples. | |
f78898e9 HE |
869 | * |
870 | * For 200 MHz, events contain 4 samples for each channel, spread 5 ns apart. | |
871 | * For 100 MHz, events contain 2 samples for each channel, spread 10 ns apart. | |
872 | * For 50 MHz and below, events contain one sample for each channel, | |
873 | * spread 20 ns apart. | |
28a35d8a HE |
874 | */ |
875 | static int decode_chunk_ts(uint8_t *buf, uint16_t *lastts, | |
88c51afe | 876 | uint16_t *lastsample, int triggerpos, |
3cd3a20b | 877 | uint16_t limit_chunk, void *cb_data) |
28a35d8a | 878 | { |
3cd3a20b | 879 | struct sr_dev_inst *sdi = cb_data; |
0e1357e8 | 880 | struct dev_context *devc = sdi->priv; |
fefa1800 | 881 | uint16_t tsdiff, ts; |
0e1357e8 | 882 | uint16_t samples[65536 * devc->samples_per_event]; |
b9c735a2 | 883 | struct sr_datafeed_packet packet; |
9c939c51 | 884 | struct sr_datafeed_logic logic; |
f78898e9 | 885 | int i, j, k, l, numpad, tosend; |
fefa1800 | 886 | size_t n = 0, sent = 0; |
0e1357e8 | 887 | int clustersize = EVENTS_PER_CLUSTER * devc->samples_per_event; |
fefa1800 | 888 | uint16_t *event; |
f78898e9 | 889 | uint16_t cur_sample; |
57bbf56b | 890 | int triggerts = -1; |
ee492173 | 891 | |
4ae1f451 | 892 | /* Check if trigger is in this chunk. */ |
ee492173 | 893 | if (triggerpos != -1) { |
0e1357e8 | 894 | if (devc->cur_samplerate <= SR_MHZ(50)) |
36b1c8e6 | 895 | triggerpos -= EVENTS_PER_CLUSTER - 1; |
ee492173 HE |
896 | |
897 | if (triggerpos < 0) | |
898 | triggerpos = 0; | |
57bbf56b | 899 | |
ee492173 HE |
900 | /* Find in which cluster the trigger occured. */ |
901 | triggerts = triggerpos / 7; | |
902 | } | |
28a35d8a | 903 | |
eec5275e | 904 | /* For each ts. */ |
28a35d8a | 905 | for (i = 0; i < 64; ++i) { |
fefa1800 | 906 | ts = *(uint16_t *) &buf[i * 16]; |
28a35d8a HE |
907 | tsdiff = ts - *lastts; |
908 | *lastts = ts; | |
909 | ||
88c51afe HE |
910 | /* Decode partial chunk. */ |
911 | if (limit_chunk && ts > limit_chunk) | |
e46b8fb1 | 912 | return SR_OK; |
88c51afe | 913 | |
fefa1800 | 914 | /* Pad last sample up to current point. */ |
0e1357e8 | 915 | numpad = tsdiff * devc->samples_per_event - clustersize; |
28a35d8a | 916 | if (numpad > 0) { |
f78898e9 HE |
917 | for (j = 0; j < numpad; ++j) |
918 | samples[j] = *lastsample; | |
919 | ||
920 | n = numpad; | |
28a35d8a HE |
921 | } |
922 | ||
57bbf56b HE |
923 | /* Send samples between previous and this timestamp to sigrok. */ |
924 | sent = 0; | |
925 | while (sent < n) { | |
926 | tosend = MIN(2048, n - sent); | |
927 | ||
5a2326a7 | 928 | packet.type = SR_DF_LOGIC; |
9c939c51 BV |
929 | packet.payload = &logic; |
930 | logic.length = tosend * sizeof(uint16_t); | |
931 | logic.unitsize = 2; | |
932 | logic.data = samples + sent; | |
3e9b7f9c | 933 | sr_session_send(devc->cb_data, &packet); |
28a35d8a | 934 | |
57bbf56b HE |
935 | sent += tosend; |
936 | } | |
937 | n = 0; | |
938 | ||
939 | event = (uint16_t *) &buf[i * 16 + 2]; | |
f78898e9 HE |
940 | cur_sample = 0; |
941 | ||
942 | /* For each event in cluster. */ | |
28a35d8a | 943 | for (j = 0; j < 7; ++j) { |
f78898e9 HE |
944 | |
945 | /* For each sample in event. */ | |
0e1357e8 | 946 | for (k = 0; k < devc->samples_per_event; ++k) { |
f78898e9 HE |
947 | cur_sample = 0; |
948 | ||
ba7dd8bb UH |
949 | /* For each channel. */ |
950 | for (l = 0; l < devc->num_channels; ++l) | |
edca2c5c | 951 | cur_sample |= (!!(event[j] & (1 << (l * |
0e1357e8 | 952 | devc->samples_per_event + k)))) << l; |
f78898e9 HE |
953 | |
954 | samples[n++] = cur_sample; | |
28a35d8a HE |
955 | } |
956 | } | |
957 | ||
eec5275e | 958 | /* Send data up to trigger point (if triggered). */ |
fefa1800 | 959 | sent = 0; |
57bbf56b HE |
960 | if (i == triggerts) { |
961 | /* | |
36b1c8e6 HE |
962 | * Trigger is not always accurate to sample because of |
963 | * pipeline delay. However, it always triggers before | |
964 | * the actual event. We therefore look at the next | |
965 | * samples to pinpoint the exact position of the trigger. | |
57bbf56b | 966 | */ |
bdfc7a89 | 967 | tosend = get_trigger_offset(samples, *lastsample, |
0e1357e8 | 968 | &devc->trigger); |
57bbf56b HE |
969 | |
970 | if (tosend > 0) { | |
5a2326a7 | 971 | packet.type = SR_DF_LOGIC; |
9c939c51 BV |
972 | packet.payload = &logic; |
973 | logic.length = tosend * sizeof(uint16_t); | |
974 | logic.unitsize = 2; | |
975 | logic.data = samples; | |
3e9b7f9c | 976 | sr_session_send(devc->cb_data, &packet); |
57bbf56b HE |
977 | |
978 | sent += tosend; | |
979 | } | |
28a35d8a | 980 | |
5b5ea7c6 | 981 | /* Only send trigger if explicitly enabled. */ |
0e1357e8 | 982 | if (devc->use_triggers) { |
5a2326a7 | 983 | packet.type = SR_DF_TRIGGER; |
3e9b7f9c | 984 | sr_session_send(devc->cb_data, &packet); |
5b5ea7c6 | 985 | } |
28a35d8a | 986 | } |
57bbf56b | 987 | |
eec5275e | 988 | /* Send rest of the chunk to sigrok. */ |
57bbf56b HE |
989 | tosend = n - sent; |
990 | ||
abda62ce | 991 | if (tosend > 0) { |
5a2326a7 | 992 | packet.type = SR_DF_LOGIC; |
9c939c51 BV |
993 | packet.payload = &logic; |
994 | logic.length = tosend * sizeof(uint16_t); | |
995 | logic.unitsize = 2; | |
996 | logic.data = samples + sent; | |
3e9b7f9c | 997 | sr_session_send(devc->cb_data, &packet); |
abda62ce | 998 | } |
ee492173 HE |
999 | |
1000 | *lastsample = samples[n - 1]; | |
28a35d8a HE |
1001 | } |
1002 | ||
e46b8fb1 | 1003 | return SR_OK; |
28a35d8a HE |
1004 | } |
1005 | ||
1f9813eb | 1006 | static int receive_data(int fd, int revents, void *cb_data) |
28a35d8a | 1007 | { |
1f9813eb | 1008 | struct sr_dev_inst *sdi = cb_data; |
0e1357e8 | 1009 | struct dev_context *devc = sdi->priv; |
b9c735a2 | 1010 | struct sr_datafeed_packet packet; |
28a35d8a HE |
1011 | const int chunks_per_read = 32; |
1012 | unsigned char buf[chunks_per_read * CHUNK_SIZE]; | |
6aac7737 | 1013 | int bufsz, numchunks, i, newchunks; |
94ba4bd6 | 1014 | uint64_t running_msec; |
28a35d8a | 1015 | struct timeval tv; |
28a35d8a | 1016 | |
cb93f8a9 UH |
1017 | (void)fd; |
1018 | (void)revents; | |
28a35d8a | 1019 | |
805919b0 | 1020 | /* Get the current position. */ |
0e1357e8 | 1021 | sigma_read_pos(&devc->state.stoppos, &devc->state.triggerpos, devc); |
805919b0 | 1022 | |
0e1357e8 | 1023 | numchunks = (devc->state.stoppos + 511) / 512; |
28a35d8a | 1024 | |
0e1357e8 | 1025 | if (devc->state.state == SIGMA_IDLE) |
805919b0 | 1026 | return TRUE; |
28a35d8a | 1027 | |
0e1357e8 | 1028 | if (devc->state.state == SIGMA_CAPTURE) { |
6aac7737 HE |
1029 | /* Check if the timer has expired, or memory is full. */ |
1030 | gettimeofday(&tv, 0); | |
0e1357e8 BV |
1031 | running_msec = (tv.tv_sec - devc->start_tv.tv_sec) * 1000 + |
1032 | (tv.tv_usec - devc->start_tv.tv_usec) / 1000; | |
28a35d8a | 1033 | |
0e1357e8 | 1034 | if (running_msec < devc->limit_msec && numchunks < 32767) |
805919b0 | 1035 | return TRUE; /* While capturing... */ |
e3fff420 | 1036 | else |
6078d2c9 | 1037 | dev_acquisition_stop(sdi, sdi); |
6aac7737 | 1038 | |
dc890b8f UH |
1039 | } |
1040 | ||
1041 | if (devc->state.state == SIGMA_DOWNLOAD) { | |
0e1357e8 | 1042 | if (devc->state.chunks_downloaded >= numchunks) { |
6aac7737 | 1043 | /* End of samples. */ |
5a2326a7 | 1044 | packet.type = SR_DF_END; |
3e9b7f9c | 1045 | sr_session_send(devc->cb_data, &packet); |
6aac7737 | 1046 | |
0e1357e8 | 1047 | devc->state.state = SIGMA_IDLE; |
f78898e9 | 1048 | |
6aac7737 HE |
1049 | return TRUE; |
1050 | } | |
1051 | ||
1052 | newchunks = MIN(chunks_per_read, | |
0e1357e8 | 1053 | numchunks - devc->state.chunks_downloaded); |
28a35d8a | 1054 | |
47f4f073 | 1055 | sr_info("Downloading sample data: %.0f %%.", |
0e1357e8 | 1056 | 100.0 * devc->state.chunks_downloaded / numchunks); |
28a35d8a | 1057 | |
0e1357e8 BV |
1058 | bufsz = sigma_read_dram(devc->state.chunks_downloaded, |
1059 | newchunks, buf, devc); | |
719c5a93 UH |
1060 | /* TODO: Check bufsz. For now, just avoid compiler warnings. */ |
1061 | (void)bufsz; | |
28a35d8a | 1062 | |
fefa1800 | 1063 | /* Find first ts. */ |
0e1357e8 | 1064 | if (devc->state.chunks_downloaded == 0) { |
c36923b0 | 1065 | devc->state.lastts = RL16(buf) - 1; |
0e1357e8 | 1066 | devc->state.lastsample = 0; |
6aac7737 | 1067 | } |
28a35d8a | 1068 | |
fefa1800 | 1069 | /* Decode chunks and send them to sigrok. */ |
28a35d8a | 1070 | for (i = 0; i < newchunks; ++i) { |
88c51afe HE |
1071 | int limit_chunk = 0; |
1072 | ||
1073 | /* The last chunk may potentially be only in part. */ | |
0e1357e8 | 1074 | if (devc->state.chunks_downloaded == numchunks - 1) { |
88c51afe | 1075 | /* Find the last valid timestamp */ |
0e1357e8 | 1076 | limit_chunk = devc->state.stoppos % 512 + devc->state.lastts; |
88c51afe HE |
1077 | } |
1078 | ||
0e1357e8 | 1079 | if (devc->state.chunks_downloaded + i == devc->state.triggerchunk) |
57bbf56b | 1080 | decode_chunk_ts(buf + (i * CHUNK_SIZE), |
0e1357e8 BV |
1081 | &devc->state.lastts, |
1082 | &devc->state.lastsample, | |
1083 | devc->state.triggerpos & 0x1ff, | |
1f9813eb | 1084 | limit_chunk, sdi); |
57bbf56b HE |
1085 | else |
1086 | decode_chunk_ts(buf + (i * CHUNK_SIZE), | |
0e1357e8 BV |
1087 | &devc->state.lastts, |
1088 | &devc->state.lastsample, | |
1f9813eb | 1089 | -1, limit_chunk, sdi); |
28a35d8a | 1090 | |
0e1357e8 | 1091 | ++devc->state.chunks_downloaded; |
88c51afe | 1092 | } |
28a35d8a HE |
1093 | } |
1094 | ||
28a35d8a HE |
1095 | return TRUE; |
1096 | } | |
1097 | ||
c53d793f HE |
1098 | /* Build a LUT entry used by the trigger functions. */ |
1099 | static void build_lut_entry(uint16_t value, uint16_t mask, uint16_t *entry) | |
ee492173 HE |
1100 | { |
1101 | int i, j, k, bit; | |
1102 | ||
ba7dd8bb | 1103 | /* For each quad channel. */ |
ee492173 | 1104 | for (i = 0; i < 4; ++i) { |
c53d793f | 1105 | entry[i] = 0xffff; |
ee492173 | 1106 | |
f758d074 | 1107 | /* For each bit in LUT. */ |
ee492173 HE |
1108 | for (j = 0; j < 16; ++j) |
1109 | ||
ba7dd8bb | 1110 | /* For each channel in quad. */ |
ee492173 HE |
1111 | for (k = 0; k < 4; ++k) { |
1112 | bit = 1 << (i * 4 + k); | |
1113 | ||
c53d793f HE |
1114 | /* Set bit in entry */ |
1115 | if ((mask & bit) && | |
1116 | ((!(value & bit)) != | |
4ae1f451 | 1117 | (!(j & (1 << k))))) |
c53d793f | 1118 | entry[i] &= ~(1 << j); |
ee492173 HE |
1119 | } |
1120 | } | |
c53d793f | 1121 | } |
ee492173 | 1122 | |
c53d793f HE |
1123 | /* Add a logical function to LUT mask. */ |
1124 | static void add_trigger_function(enum triggerop oper, enum triggerfunc func, | |
1125 | int index, int neg, uint16_t *mask) | |
1126 | { | |
1127 | int i, j; | |
1128 | int x[2][2], tmp, a, b, aset, bset, rset; | |
1129 | ||
1130 | memset(x, 0, 4 * sizeof(int)); | |
1131 | ||
1132 | /* Trigger detect condition. */ | |
1133 | switch (oper) { | |
1134 | case OP_LEVEL: | |
1135 | x[0][1] = 1; | |
1136 | x[1][1] = 1; | |
1137 | break; | |
1138 | case OP_NOT: | |
1139 | x[0][0] = 1; | |
1140 | x[1][0] = 1; | |
1141 | break; | |
1142 | case OP_RISE: | |
1143 | x[0][1] = 1; | |
1144 | break; | |
1145 | case OP_FALL: | |
1146 | x[1][0] = 1; | |
1147 | break; | |
1148 | case OP_RISEFALL: | |
1149 | x[0][1] = 1; | |
1150 | x[1][0] = 1; | |
1151 | break; | |
1152 | case OP_NOTRISE: | |
1153 | x[1][1] = 1; | |
1154 | x[0][0] = 1; | |
1155 | x[1][0] = 1; | |
1156 | break; | |
1157 | case OP_NOTFALL: | |
1158 | x[1][1] = 1; | |
1159 | x[0][0] = 1; | |
1160 | x[0][1] = 1; | |
1161 | break; | |
1162 | case OP_NOTRISEFALL: | |
1163 | x[1][1] = 1; | |
1164 | x[0][0] = 1; | |
1165 | break; | |
1166 | } | |
1167 | ||
1168 | /* Transpose if neg is set. */ | |
1169 | if (neg) { | |
ea9cfed7 | 1170 | for (i = 0; i < 2; ++i) { |
c53d793f HE |
1171 | for (j = 0; j < 2; ++j) { |
1172 | tmp = x[i][j]; | |
1173 | x[i][j] = x[1-i][1-j]; | |
1174 | x[1-i][1-j] = tmp; | |
1175 | } | |
ea9cfed7 | 1176 | } |
c53d793f HE |
1177 | } |
1178 | ||
1179 | /* Update mask with function. */ | |
1180 | for (i = 0; i < 16; ++i) { | |
1181 | a = (i >> (2 * index + 0)) & 1; | |
1182 | b = (i >> (2 * index + 1)) & 1; | |
1183 | ||
1184 | aset = (*mask >> i) & 1; | |
1185 | bset = x[b][a]; | |
1186 | ||
1187 | if (func == FUNC_AND || func == FUNC_NAND) | |
1188 | rset = aset & bset; | |
1189 | else if (func == FUNC_OR || func == FUNC_NOR) | |
1190 | rset = aset | bset; | |
1191 | else if (func == FUNC_XOR || func == FUNC_NXOR) | |
1192 | rset = aset ^ bset; | |
1193 | ||
1194 | if (func == FUNC_NAND || func == FUNC_NOR || func == FUNC_NXOR) | |
1195 | rset = !rset; | |
1196 | ||
1197 | *mask &= ~(1 << i); | |
1198 | ||
1199 | if (rset) | |
1200 | *mask |= 1 << i; | |
1201 | } | |
1202 | } | |
1203 | ||
1204 | /* | |
1205 | * Build trigger LUTs used by 50 MHz and lower sample rates for supporting | |
1206 | * simple pin change and state triggers. Only two transitions (rise/fall) can be | |
1207 | * set at any time, but a full mask and value can be set (0/1). | |
1208 | */ | |
0e1357e8 | 1209 | static int build_basic_trigger(struct triggerlut *lut, struct dev_context *devc) |
c53d793f HE |
1210 | { |
1211 | int i,j; | |
4ae1f451 | 1212 | uint16_t masks[2] = { 0, 0 }; |
c53d793f HE |
1213 | |
1214 | memset(lut, 0, sizeof(struct triggerlut)); | |
1215 | ||
1216 | /* Contant for simple triggers. */ | |
1217 | lut->m4 = 0xa000; | |
1218 | ||
1219 | /* Value/mask trigger support. */ | |
0e1357e8 | 1220 | build_lut_entry(devc->trigger.simplevalue, devc->trigger.simplemask, |
99965709 | 1221 | lut->m2d); |
c53d793f HE |
1222 | |
1223 | /* Rise/fall trigger support. */ | |
1224 | for (i = 0, j = 0; i < 16; ++i) { | |
0e1357e8 BV |
1225 | if (devc->trigger.risingmask & (1 << i) || |
1226 | devc->trigger.fallingmask & (1 << i)) | |
c53d793f HE |
1227 | masks[j++] = 1 << i; |
1228 | } | |
1229 | ||
1230 | build_lut_entry(masks[0], masks[0], lut->m0d); | |
1231 | build_lut_entry(masks[1], masks[1], lut->m1d); | |
1232 | ||
1233 | /* Add glue logic */ | |
1234 | if (masks[0] || masks[1]) { | |
1235 | /* Transition trigger. */ | |
0e1357e8 | 1236 | if (masks[0] & devc->trigger.risingmask) |
c53d793f | 1237 | add_trigger_function(OP_RISE, FUNC_OR, 0, 0, &lut->m3); |
0e1357e8 | 1238 | if (masks[0] & devc->trigger.fallingmask) |
c53d793f | 1239 | add_trigger_function(OP_FALL, FUNC_OR, 0, 0, &lut->m3); |
0e1357e8 | 1240 | if (masks[1] & devc->trigger.risingmask) |
c53d793f | 1241 | add_trigger_function(OP_RISE, FUNC_OR, 1, 0, &lut->m3); |
0e1357e8 | 1242 | if (masks[1] & devc->trigger.fallingmask) |
c53d793f HE |
1243 | add_trigger_function(OP_FALL, FUNC_OR, 1, 0, &lut->m3); |
1244 | } else { | |
1245 | /* Only value/mask trigger. */ | |
1246 | lut->m3 = 0xffff; | |
1247 | } | |
ee492173 | 1248 | |
c53d793f | 1249 | /* Triggertype: event. */ |
ee492173 HE |
1250 | lut->params.selres = 3; |
1251 | ||
e46b8fb1 | 1252 | return SR_OK; |
ee492173 HE |
1253 | } |
1254 | ||
6078d2c9 | 1255 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
28a35d8a | 1256 | { |
0e1357e8 | 1257 | struct dev_context *devc; |
9ddb2a12 | 1258 | struct clockselect_50 clockselect; |
82957b65 | 1259 | int frac, triggerpin, ret; |
f4abaa9f | 1260 | uint8_t triggerselect = 0; |
57bbf56b | 1261 | struct triggerinout triggerinout_conf; |
ee492173 | 1262 | struct triggerlut lut; |
28a35d8a | 1263 | |
e73ffd42 BV |
1264 | if (sdi->status != SR_ST_ACTIVE) |
1265 | return SR_ERR_DEV_CLOSED; | |
1266 | ||
0e1357e8 | 1267 | devc = sdi->priv; |
28a35d8a | 1268 | |
ba7dd8bb UH |
1269 | if (configure_channels(sdi) != SR_OK) { |
1270 | sr_err("Failed to configure channels."); | |
014359e3 BV |
1271 | return SR_ERR; |
1272 | } | |
1273 | ||
ea9cfed7 | 1274 | /* If the samplerate has not been set, default to 200 kHz. */ |
0e1357e8 | 1275 | if (devc->cur_firmware == -1) { |
82957b65 UH |
1276 | if ((ret = set_samplerate(sdi, SR_KHZ(200))) != SR_OK) |
1277 | return ret; | |
1278 | } | |
e8397563 | 1279 | |
eec5275e | 1280 | /* Enter trigger programming mode. */ |
0e1357e8 | 1281 | sigma_set_register(WRITE_TRIGGER_SELECT1, 0x20, devc); |
28a35d8a | 1282 | |
eec5275e | 1283 | /* 100 and 200 MHz mode. */ |
0e1357e8 BV |
1284 | if (devc->cur_samplerate >= SR_MHZ(100)) { |
1285 | sigma_set_register(WRITE_TRIGGER_SELECT1, 0x81, devc); | |
57bbf56b | 1286 | |
a42aec7f HE |
1287 | /* Find which pin to trigger on from mask. */ |
1288 | for (triggerpin = 0; triggerpin < 8; ++triggerpin) | |
0e1357e8 | 1289 | if ((devc->trigger.risingmask | devc->trigger.fallingmask) & |
a42aec7f HE |
1290 | (1 << triggerpin)) |
1291 | break; | |
1292 | ||
1293 | /* Set trigger pin and light LED on trigger. */ | |
1294 | triggerselect = (1 << LEDSEL1) | (triggerpin & 0x7); | |
1295 | ||
1296 | /* Default rising edge. */ | |
0e1357e8 | 1297 | if (devc->trigger.fallingmask) |
a42aec7f | 1298 | triggerselect |= 1 << 3; |
57bbf56b | 1299 | |
eec5275e | 1300 | /* All other modes. */ |
0e1357e8 BV |
1301 | } else if (devc->cur_samplerate <= SR_MHZ(50)) { |
1302 | build_basic_trigger(&lut, devc); | |
ee492173 | 1303 | |
0e1357e8 | 1304 | sigma_write_trigger_lut(&lut, devc); |
57bbf56b HE |
1305 | |
1306 | triggerselect = (1 << LEDSEL1) | (1 << LEDSEL0); | |
1307 | } | |
1308 | ||
eec5275e | 1309 | /* Setup trigger in and out pins to default values. */ |
57bbf56b HE |
1310 | memset(&triggerinout_conf, 0, sizeof(struct triggerinout)); |
1311 | triggerinout_conf.trgout_bytrigger = 1; | |
1312 | triggerinout_conf.trgout_enable = 1; | |
1313 | ||
28a35d8a | 1314 | sigma_write_register(WRITE_TRIGGER_OPTION, |
57bbf56b | 1315 | (uint8_t *) &triggerinout_conf, |
0e1357e8 | 1316 | sizeof(struct triggerinout), devc); |
28a35d8a | 1317 | |
eec5275e | 1318 | /* Go back to normal mode. */ |
0e1357e8 | 1319 | sigma_set_register(WRITE_TRIGGER_SELECT1, triggerselect, devc); |
28a35d8a | 1320 | |
edca2c5c | 1321 | /* Set clock select register. */ |
0e1357e8 | 1322 | if (devc->cur_samplerate == SR_MHZ(200)) |
ba7dd8bb | 1323 | /* Enable 4 channels. */ |
0e1357e8 BV |
1324 | sigma_set_register(WRITE_CLOCK_SELECT, 0xf0, devc); |
1325 | else if (devc->cur_samplerate == SR_MHZ(100)) | |
ba7dd8bb | 1326 | /* Enable 8 channels. */ |
0e1357e8 | 1327 | sigma_set_register(WRITE_CLOCK_SELECT, 0x00, devc); |
edca2c5c HE |
1328 | else { |
1329 | /* | |
9ddb2a12 | 1330 | * 50 MHz mode (or fraction thereof). Any fraction down to |
eec5275e | 1331 | * 50 MHz / 256 can be used, but is not supported by sigrok API. |
edca2c5c | 1332 | */ |
0e1357e8 | 1333 | frac = SR_MHZ(50) / devc->cur_samplerate - 1; |
edca2c5c | 1334 | |
9ddb2a12 UH |
1335 | clockselect.async = 0; |
1336 | clockselect.fraction = frac; | |
ba7dd8bb | 1337 | clockselect.disabled_channels = 0; |
edca2c5c HE |
1338 | |
1339 | sigma_write_register(WRITE_CLOCK_SELECT, | |
9ddb2a12 | 1340 | (uint8_t *) &clockselect, |
0e1357e8 | 1341 | sizeof(clockselect), devc); |
edca2c5c HE |
1342 | } |
1343 | ||
fefa1800 | 1344 | /* Setup maximum post trigger time. */ |
99965709 | 1345 | sigma_set_register(WRITE_POST_TRIGGER, |
0e1357e8 | 1346 | (devc->capture_ratio * 255) / 100, devc); |
28a35d8a | 1347 | |
eec5275e | 1348 | /* Start acqusition. */ |
0e1357e8 BV |
1349 | gettimeofday(&devc->start_tv, 0); |
1350 | sigma_set_register(WRITE_MODE, 0x0d, devc); | |
99965709 | 1351 | |
3e9b7f9c | 1352 | devc->cb_data = cb_data; |
28a35d8a | 1353 | |
3c36c403 | 1354 | /* Send header packet to the session bus. */ |
29a27196 | 1355 | std_session_send_df_header(cb_data, LOG_PREFIX); |
f366e86c | 1356 | |
f366e86c | 1357 | /* Add capture source. */ |
3ffb6964 | 1358 | sr_source_add(0, G_IO_IN, 10, receive_data, (void *)sdi); |
f366e86c | 1359 | |
0e1357e8 | 1360 | devc->state.state = SIGMA_CAPTURE; |
6aac7737 | 1361 | |
e46b8fb1 | 1362 | return SR_OK; |
28a35d8a HE |
1363 | } |
1364 | ||
6078d2c9 | 1365 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
28a35d8a | 1366 | { |
0e1357e8 | 1367 | struct dev_context *devc; |
6aac7737 HE |
1368 | uint8_t modestatus; |
1369 | ||
3cd3a20b | 1370 | (void)cb_data; |
28a35d8a | 1371 | |
503c4afb BV |
1372 | sr_source_remove(0); |
1373 | ||
0e1357e8 | 1374 | if (!(devc = sdi->priv)) { |
47f4f073 | 1375 | sr_err("%s: sdi->priv was NULL", __func__); |
3010f21c UH |
1376 | return SR_ERR_BUG; |
1377 | } | |
1378 | ||
fefa1800 | 1379 | /* Stop acquisition. */ |
0e1357e8 | 1380 | sigma_set_register(WRITE_MODE, 0x11, devc); |
28a35d8a | 1381 | |
6aac7737 | 1382 | /* Set SDRAM Read Enable. */ |
0e1357e8 | 1383 | sigma_set_register(WRITE_MODE, 0x02, devc); |
6aac7737 HE |
1384 | |
1385 | /* Get the current position. */ | |
0e1357e8 | 1386 | sigma_read_pos(&devc->state.stoppos, &devc->state.triggerpos, devc); |
6aac7737 HE |
1387 | |
1388 | /* Check if trigger has fired. */ | |
0e1357e8 | 1389 | modestatus = sigma_get_register(READ_MODE, devc); |
3010f21c | 1390 | if (modestatus & 0x20) |
0e1357e8 | 1391 | devc->state.triggerchunk = devc->state.triggerpos / 512; |
3010f21c | 1392 | else |
0e1357e8 | 1393 | devc->state.triggerchunk = -1; |
6aac7737 | 1394 | |
0e1357e8 | 1395 | devc->state.chunks_downloaded = 0; |
6aac7737 | 1396 | |
0e1357e8 | 1397 | devc->state.state = SIGMA_DOWNLOAD; |
3010f21c UH |
1398 | |
1399 | return SR_OK; | |
28a35d8a HE |
1400 | } |
1401 | ||
c09f0b57 | 1402 | SR_PRIV struct sr_dev_driver asix_sigma_driver_info = { |
e519ba86 | 1403 | .name = "asix-sigma", |
6352d030 | 1404 | .longname = "ASIX SIGMA/SIGMA2", |
e519ba86 | 1405 | .api_version = 1, |
6078d2c9 UH |
1406 | .init = init, |
1407 | .cleanup = cleanup, | |
1408 | .scan = scan, | |
1409 | .dev_list = dev_list, | |
3b412e3a | 1410 | .dev_clear = dev_clear, |
035a1078 BV |
1411 | .config_get = config_get, |
1412 | .config_set = config_set, | |
a1c743fc | 1413 | .config_list = config_list, |
6078d2c9 UH |
1414 | .dev_open = dev_open, |
1415 | .dev_close = dev_close, | |
1416 | .dev_acquisition_start = dev_acquisition_start, | |
1417 | .dev_acquisition_stop = dev_acquisition_stop, | |
0e1357e8 | 1418 | .priv = NULL, |
28a35d8a | 1419 | }; |