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f4314d7e UH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2011 Uwe Hermann <uwe@hermann-uwe.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include <ftdi.h> | |
ecaf59db | 22 | #include <glib.h> |
4362438f | 23 | #include <string.h> |
f4314d7e | 24 | #include <sigrok.h> |
b08024a8 | 25 | #include <sigrok-internal.h> |
f4314d7e UH |
26 | |
27 | #define USB_VENDOR_ID 0x0403 | |
28 | #define USB_PRODUCT_ID 0x6001 | |
29 | #define USB_DESCRIPTION "ChronoVu LA8" | |
30 | #define USB_VENDOR_NAME "ChronoVu" | |
31 | #define USB_MODEL_NAME "LA8" | |
32 | #define USB_MODEL_VERSION "" | |
33 | ||
34 | #define NUM_PROBES 8 | |
35 | #define TRIGGER_TYPES "01" | |
36 | #define SDRAM_SIZE (8 * 1024 * 1024) | |
37 | #define MIN_NUM_SAMPLES 1 | |
38 | ||
39 | static GSList *device_instances = NULL; | |
40 | ||
41 | struct la8 { | |
42 | /** FTDI device context (used by libftdi). */ | |
43 | struct ftdi_context *ftdic; | |
44 | ||
45 | /** The currently configured samplerate of the device. */ | |
46 | uint64_t cur_samplerate; | |
47 | ||
48 | /** The current sampling limit (in ms). */ | |
49 | uint64_t limit_msec; | |
50 | ||
51 | /** The current sampling limit (in number of samples). */ | |
52 | uint64_t limit_samples; | |
53 | ||
f4314d7e UH |
54 | /** TODO */ |
55 | gpointer session_id; | |
56 | ||
57 | /** | |
4362438f | 58 | * An 4KB buffer containing some (mangled) samples from the device. |
f4314d7e UH |
59 | * Format: Pretty mangled-up (due to hardware reasons), see code. |
60 | */ | |
4362438f | 61 | uint8_t mangled_buf[4096]; |
f4314d7e UH |
62 | |
63 | /** | |
64 | * An 8MB buffer where we'll store the de-mangled samples. | |
65 | * Format: Each sample is 1 byte, MSB is channel 7, LSB is channel 0. | |
66 | */ | |
67 | uint8_t *final_buf; | |
68 | ||
69 | /** | |
70 | * Trigger pattern (MSB = channel 7, LSB = channel 0). | |
71 | * A 1 bit matches a high signal, 0 matches a low signal on a probe. | |
72 | * Only low/high triggers (but not e.g. rising/falling) are supported. | |
73 | */ | |
74 | uint8_t trigger_pattern; | |
75 | ||
76 | /** | |
77 | * Trigger mask (MSB = channel 7, LSB = channel 0). | |
78 | * A 1 bit means "must match trigger_pattern", 0 means "don't care". | |
79 | */ | |
80 | uint8_t trigger_mask; | |
81 | ||
82 | /** Time (in seconds) before the trigger times out. */ | |
83 | uint64_t trigger_timeout; | |
84 | ||
85 | /** TODO */ | |
86 | time_t done; | |
87 | ||
88 | /** Counter/index for the data block (0..2047) to be read. */ | |
89 | int block_counter; | |
90 | ||
91 | /** The divcount value (determines the sample period) for the LA8. */ | |
92 | uint8_t divcount; | |
93 | }; | |
94 | ||
95 | /* This will be initialized via hw_get_device_info()/SR_DI_SAMPLERATES. */ | |
96 | static uint64_t supported_samplerates[255 + 1] = { 0 }; | |
97 | ||
98 | /* | |
99 | * Min: 1 sample per 0.01us -> sample time is 0.084s, samplerate 100MHz | |
100 | * Max: 1 sample per 2.55us -> sample time is 21.391s, samplerate 392.15kHz | |
101 | */ | |
102 | static struct sr_samplerates samplerates = { | |
103 | .low = 0, | |
104 | .high = 0, | |
105 | .step = 0, | |
106 | .list = supported_samplerates, | |
107 | }; | |
108 | ||
109 | /* Note: Continuous sampling is not supported by the hardware. */ | |
110 | static int capabilities[] = { | |
111 | SR_HWCAP_LOGIC_ANALYZER, | |
112 | SR_HWCAP_SAMPLERATE, | |
113 | SR_HWCAP_LIMIT_MSEC, /* TODO: Not yet implemented. */ | |
114 | SR_HWCAP_LIMIT_SAMPLES, /* TODO: Not yet implemented. */ | |
115 | 0, | |
116 | }; | |
117 | ||
118 | /* Function prototypes. */ | |
119 | static int la8_close_usb_reset_sequencer(struct la8 *la8); | |
120 | static void hw_stop_acquisition(int device_index, gpointer session_device_id); | |
121 | static int la8_reset(struct la8 *la8); | |
122 | ||
123 | static void fill_supported_samplerates_if_needed(void) | |
124 | { | |
125 | int i; | |
126 | ||
127 | /* Do nothing if supported_samplerates[] is already filled. */ | |
128 | if (supported_samplerates[0] != 0) | |
129 | return; | |
130 | ||
131 | /* Fill supported_samplerates[] with the proper values. */ | |
132 | for (i = 0; i < 255; i++) | |
133 | supported_samplerates[254 - i] = SR_MHZ(100) / (i + 1); | |
134 | supported_samplerates[255] = 0; | |
135 | } | |
136 | ||
137 | /** | |
138 | * Check if the given samplerate is supported by the LA8 hardware. | |
139 | * | |
140 | * @param samplerate The samplerate (in Hz) to check. | |
141 | * @return 1 if the samplerate is supported/valid, 0 otherwise. | |
142 | */ | |
143 | static int is_valid_samplerate(uint64_t samplerate) | |
144 | { | |
145 | int i; | |
146 | ||
147 | fill_supported_samplerates_if_needed(); | |
148 | ||
149 | for (i = 0; i < 255; i++) { | |
150 | if (supported_samplerates[i] == samplerate) | |
151 | return 1; | |
152 | } | |
153 | ||
b08024a8 UH |
154 | sr_warn("la8: %s: invalid samplerate (%" PRIu64 "Hz)", |
155 | __func__, samplerate); | |
f4314d7e UH |
156 | |
157 | return 0; | |
158 | } | |
159 | ||
160 | /** | |
161 | * Convert a samplerate (in Hz) to the 'divcount' value the LA8 wants. | |
162 | * | |
163 | * LA8 hardware: sample period = (divcount + 1) * 10ns. | |
164 | * Min. value for divcount: 0x00 (10ns sample period, 100MHz samplerate). | |
165 | * Max. value for divcount: 0xfe (2550ns sample period, 392.15kHz samplerate). | |
166 | * | |
167 | * @param samplerate The samplerate in Hz. | |
168 | * @return The divcount value as needed by the hardware, or 0xff upon errors. | |
169 | */ | |
170 | static uint8_t samplerate_to_divcount(uint64_t samplerate) | |
171 | { | |
172 | if (samplerate == 0) { | |
30939770 | 173 | sr_err("la8: %s: samplerate was 0", __func__); |
f4314d7e UH |
174 | return 0xff; |
175 | } | |
176 | ||
177 | if (!is_valid_samplerate(samplerate)) { | |
30939770 UH |
178 | sr_err("la8: %s: can't get divcount, samplerate invalid", |
179 | __func__); | |
f4314d7e UH |
180 | return 0xff; |
181 | } | |
182 | ||
183 | return (SR_MHZ(100) / samplerate) - 1; | |
184 | } | |
185 | ||
186 | /** | |
187 | * Write data of a certain length to the LA8's FTDI device. | |
188 | * | |
189 | * @param la8 The LA8 struct containing private per-device-instance data. | |
190 | * @param buf The buffer containing the data to write. | |
191 | * @param size The number of bytes to write. | |
192 | * @return The number of bytes written, or a negative value upon errors. | |
193 | */ | |
194 | static int la8_write(struct la8 *la8, uint8_t *buf, int size) | |
195 | { | |
196 | int bytes_written; | |
197 | ||
198 | if (!la8) { | |
30939770 | 199 | sr_err("la8: %s: la8 was NULL", __func__); |
8703f512 | 200 | return SR_ERR_ARG; |
f4314d7e UH |
201 | } |
202 | ||
203 | if (!la8->ftdic) { | |
30939770 | 204 | sr_err("la8: %s: la8->ftdic was NULL", __func__); |
8703f512 | 205 | return SR_ERR_ARG; |
f4314d7e UH |
206 | } |
207 | ||
208 | if (!buf) { | |
30939770 | 209 | sr_err("la8: %s: buf was NULL", __func__); |
8703f512 | 210 | return SR_ERR_ARG; |
f4314d7e UH |
211 | } |
212 | ||
213 | if (size < 0) { | |
30939770 | 214 | sr_err("la8: %s: size was < 0", __func__); |
8703f512 | 215 | return SR_ERR_ARG; |
f4314d7e UH |
216 | } |
217 | ||
218 | bytes_written = ftdi_write_data(la8->ftdic, buf, size); | |
219 | ||
220 | if (bytes_written < 0) { | |
b08024a8 UH |
221 | sr_warn("la8: %s: ftdi_write_data: (%d) %s", __func__, |
222 | bytes_written, ftdi_get_error_string(la8->ftdic)); | |
f4314d7e UH |
223 | (void) la8_close_usb_reset_sequencer(la8); /* Ignore errors. */ |
224 | } else if (bytes_written != size) { | |
b08024a8 UH |
225 | sr_warn("la8: %s: bytes to write: %d, bytes written: %d", |
226 | __func__, size, bytes_written); | |
f4314d7e UH |
227 | (void) la8_close_usb_reset_sequencer(la8); /* Ignore errors. */ |
228 | } | |
229 | ||
230 | return bytes_written; | |
231 | } | |
232 | ||
233 | /** | |
234 | * Read a certain amount of bytes from the LA8's FTDI device. | |
235 | * | |
236 | * @param la8 The LA8 struct containing private per-device-instance data. | |
237 | * @param buf The buffer where the received data will be stored. | |
238 | * @param size The number of bytes to read. | |
239 | * @return The number of bytes read, or a negative value upon errors. | |
240 | */ | |
241 | static int la8_read(struct la8 *la8, uint8_t *buf, int size) | |
242 | { | |
243 | int bytes_read; | |
244 | ||
245 | if (!la8) { | |
30939770 | 246 | sr_err("la8: %s: la8 was NULL", __func__); |
8703f512 | 247 | return SR_ERR_ARG; |
f4314d7e UH |
248 | } |
249 | ||
250 | if (!la8->ftdic) { | |
30939770 | 251 | sr_err("la8: %s: la8->ftdic was NULL", __func__); |
8703f512 | 252 | return SR_ERR_ARG; |
f4314d7e UH |
253 | } |
254 | ||
255 | if (!buf) { | |
30939770 | 256 | sr_err("la8: %s: buf was NULL", __func__); |
8703f512 | 257 | return SR_ERR_ARG; |
f4314d7e UH |
258 | } |
259 | ||
260 | if (size <= 0) { | |
30939770 | 261 | sr_err("la8: %s: size was <= 0", __func__); |
8703f512 | 262 | return SR_ERR_ARG; |
f4314d7e UH |
263 | } |
264 | ||
265 | bytes_read = ftdi_read_data(la8->ftdic, buf, size); | |
266 | ||
267 | if (bytes_read < 0) { | |
b08024a8 UH |
268 | sr_warn("la8: %s: ftdi_read_data: (%d) %s", __func__, |
269 | bytes_read, ftdi_get_error_string(la8->ftdic)); | |
f4314d7e | 270 | } else if (bytes_read != size) { |
b08024a8 UH |
271 | // sr_warn("la8: %s: bytes to read: %d, bytes read: %d", |
272 | // __func__, size, bytes_read); | |
f4314d7e UH |
273 | } |
274 | ||
275 | return bytes_read; | |
276 | } | |
277 | ||
278 | static int la8_close(struct la8 *la8) | |
279 | { | |
280 | int ret; | |
281 | ||
282 | if (!la8) { | |
30939770 | 283 | sr_err("la8: %s: la8 was NULL", __func__); |
8703f512 | 284 | return SR_ERR_ARG; |
f4314d7e UH |
285 | } |
286 | ||
287 | if (!la8->ftdic) { | |
30939770 | 288 | sr_err("la8: %s: la8->ftdic was NULL", __func__); |
8703f512 | 289 | return SR_ERR_ARG; |
f4314d7e UH |
290 | } |
291 | ||
292 | if ((ret = ftdi_usb_close(la8->ftdic)) < 0) { | |
b08024a8 UH |
293 | sr_warn("la8: %s: ftdi_usb_close: (%d) %s", |
294 | __func__, ret, ftdi_get_error_string(la8->ftdic)); | |
f4314d7e UH |
295 | } |
296 | ||
297 | return ret; | |
298 | } | |
299 | ||
300 | /** | |
301 | * Close the ChronoVu LA8 USB port and reset the LA8 sequencer logic. | |
302 | * | |
303 | * @param la8 The LA8 struct containing private per-device-instance data. | |
304 | * @return SR_OK upon success, SR_ERR upon failure. | |
305 | */ | |
306 | static int la8_close_usb_reset_sequencer(struct la8 *la8) | |
307 | { | |
308 | /* Magic sequence of bytes for resetting the LA8 sequencer logic. */ | |
309 | uint8_t buf[8] = {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01}; | |
310 | int ret; | |
311 | ||
b08024a8 | 312 | sr_dbg("la8: entering %s", __func__); |
f4314d7e UH |
313 | |
314 | if (!la8) { | |
30939770 | 315 | sr_err("la8: %s: la8 was NULL", __func__); |
8703f512 | 316 | return SR_ERR_ARG; |
f4314d7e UH |
317 | } |
318 | ||
319 | if (!la8->ftdic) { | |
30939770 | 320 | sr_err("la8: %s: la8->ftdic was NULL", __func__); |
8703f512 | 321 | return SR_ERR_ARG; |
f4314d7e UH |
322 | } |
323 | ||
324 | if (la8->ftdic->usb_dev) { | |
325 | /* Reset the LA8 sequencer logic, then wait 100ms. */ | |
b08024a8 | 326 | sr_dbg("la8: resetting sequencer logic"); |
f4314d7e UH |
327 | (void) la8_write(la8, buf, 8); /* Ignore errors. */ |
328 | g_usleep(100 * 1000); | |
329 | ||
330 | /* Purge FTDI buffers, then reset and close the FTDI device. */ | |
b08024a8 | 331 | sr_dbg("la8: purging buffers, resetting+closing FTDI device"); |
f4314d7e UH |
332 | |
333 | /* Log errors, but ignore them (i.e., don't abort). */ | |
334 | if ((ret = ftdi_usb_purge_buffers(la8->ftdic)) < 0) | |
b08024a8 | 335 | sr_warn("la8: %s: ftdi_usb_purge_buffers: (%d) %s", |
f4314d7e UH |
336 | __func__, ret, ftdi_get_error_string(la8->ftdic)); |
337 | if ((ret = ftdi_usb_reset(la8->ftdic)) < 0) | |
b08024a8 UH |
338 | sr_warn("la8: %s: ftdi_usb_reset: (%d) %s", __func__, |
339 | ret, ftdi_get_error_string(la8->ftdic)); | |
f4314d7e | 340 | if ((ret = ftdi_usb_close(la8->ftdic)) < 0) |
b08024a8 UH |
341 | sr_warn("la8: %s: ftdi_usb_close: (%d) %s", __func__, |
342 | ret, ftdi_get_error_string(la8->ftdic)); | |
f4314d7e | 343 | } else { |
b08024a8 | 344 | sr_dbg("la8: %s: usb_dev was NULL, nothing to do", __func__); |
f4314d7e UH |
345 | } |
346 | ||
347 | ftdi_free(la8->ftdic); /* Returns void. */ | |
348 | la8->ftdic = NULL; | |
349 | ||
350 | return SR_OK; | |
351 | } | |
352 | ||
353 | /** | |
354 | * Reset the ChronoVu LA8. | |
355 | * | |
356 | * The LA8 must be reset after a failed read/write operation or upon timeouts. | |
357 | * | |
358 | * @param la8 The LA8 struct containing private per-device-instance data. | |
359 | * @return SR_OK upon success, SR_ERR upon failure. | |
360 | */ | |
361 | static int la8_reset(struct la8 *la8) | |
362 | { | |
363 | uint8_t buf[4096]; | |
364 | time_t done, now; | |
365 | int bytes_read; | |
366 | ||
367 | if (!la8) { | |
30939770 | 368 | sr_err("la8: %s: la8 was NULL", __func__); |
8703f512 | 369 | return SR_ERR_ARG; |
f4314d7e UH |
370 | } |
371 | ||
372 | if (!la8->ftdic) { | |
30939770 | 373 | sr_err("la8: %s: la8->ftdic was NULL", __func__); |
8703f512 | 374 | return SR_ERR_ARG; |
f4314d7e UH |
375 | } |
376 | ||
b08024a8 | 377 | sr_dbg("la8: resetting the device"); |
f4314d7e UH |
378 | |
379 | /* | |
380 | * Purge pending read data from the FTDI hardware FIFO until | |
381 | * no more data is left, or a timeout occurs (after 20s). | |
382 | */ | |
383 | done = 20 + time(NULL); | |
384 | do { | |
385 | /* TODO: Ignore errors? Check for < 0 at least! */ | |
386 | bytes_read = la8_read(la8, (uint8_t *)&buf, 4096); | |
387 | now = time(NULL); | |
388 | } while ((done > now) && (bytes_read > 0)); | |
389 | ||
390 | /* Reset the LA8 sequencer logic and close the USB port. */ | |
391 | (void) la8_close_usb_reset_sequencer(la8); /* Ignore errors. */ | |
392 | ||
b08024a8 | 393 | sr_dbg("la8: device reset finished"); |
f4314d7e UH |
394 | |
395 | return SR_OK; | |
396 | } | |
397 | ||
ecaf59db UH |
398 | static int configure_probes(struct la8 *la8, GSList *probes) |
399 | { | |
400 | struct sr_probe *probe; | |
401 | GSList *l; | |
402 | uint8_t probe_bit; | |
403 | char *tc; | |
404 | ||
405 | la8->trigger_pattern = 0; | |
406 | la8->trigger_mask = 0; /* Default to "don't care" for all probes. */ | |
407 | ||
408 | for (l = probes; l; l = l->next) { | |
409 | probe = (struct sr_probe *)l->data; | |
410 | ||
411 | if (!probe) { | |
412 | sr_err("la8: %s: probe was NULL", __func__); | |
413 | return SR_ERR; | |
414 | } | |
415 | ||
416 | /* Skip disabled probes. */ | |
417 | if (!probe->enabled) | |
418 | continue; | |
419 | ||
420 | /* Skip (enabled) probes with no configured trigger. */ | |
421 | if (!probe->trigger) | |
422 | continue; | |
423 | ||
424 | /* Note: Must only be run if probe->trigger != NULL. */ | |
425 | if (probe->index < 0 || probe->index > 7) { | |
426 | sr_err("la8: %s: invalid probe index %d, must be " | |
427 | "between 0 and 7", __func__, probe->index); | |
428 | return SR_ERR; | |
429 | } | |
430 | ||
431 | probe_bit = (1 << (probe->index - 1)); | |
432 | ||
433 | /* Configure the probe's trigger mask and trigger pattern. */ | |
434 | for (tc = probe->trigger; tc && *tc; tc++) { | |
435 | la8->trigger_mask |= probe_bit; | |
436 | ||
437 | /* Sanity check, LA8 only supports low/high trigger. */ | |
438 | if (*tc != '0' && *tc != '1') { | |
439 | sr_err("la8: %s: invalid trigger '%c', only " | |
440 | "'0'/'1' supported", __func__, *tc); | |
441 | return SR_ERR; | |
442 | } | |
443 | ||
444 | if (*tc == '1') | |
445 | la8->trigger_pattern |= probe_bit; | |
446 | } | |
447 | } | |
448 | ||
449 | sr_dbg("la8: %s: trigger_mask = 0x%x, trigger_pattern = 0x%x", | |
450 | __func__, la8->trigger_mask, la8->trigger_pattern); | |
451 | ||
452 | return SR_OK; | |
453 | } | |
454 | ||
f4314d7e UH |
455 | static int hw_init(const char *deviceinfo) |
456 | { | |
457 | int ret; | |
458 | struct sr_device_instance *sdi; | |
459 | struct la8 *la8; | |
460 | ||
b08024a8 | 461 | sr_dbg("la8: entering %s", __func__); |
f4314d7e UH |
462 | |
463 | /* Avoid compiler errors. */ | |
464 | deviceinfo = deviceinfo; | |
465 | ||
466 | /* Allocate memory for our private driver context. */ | |
2e82a17b | 467 | if (!(la8 = g_try_malloc(sizeof(struct la8)))) { |
30939770 | 468 | sr_err("la8: %s: struct la8 malloc failed", __func__); |
f4314d7e UH |
469 | ret = SR_ERR_MALLOC; |
470 | goto err_free_nothing; | |
471 | } | |
472 | ||
473 | /* Set some sane defaults. */ | |
474 | la8->ftdic = NULL; | |
475 | la8->cur_samplerate = SR_MHZ(100); /* 100MHz == max. samplerate */ | |
476 | la8->limit_msec = 0; | |
477 | la8->limit_samples = 0; | |
f4314d7e | 478 | la8->session_id = NULL; |
4362438f | 479 | memset(la8->mangled_buf, 0, 4096); |
f4314d7e UH |
480 | la8->final_buf = NULL; |
481 | la8->trigger_pattern = 0x00; /* Value irrelevant, see trigger_mask. */ | |
482 | la8->trigger_mask = 0x00; /* All probes are "don't care". */ | |
483 | la8->trigger_timeout = 10; /* Default to 10s trigger timeout. */ | |
484 | la8->done = 0; | |
485 | la8->block_counter = 0; | |
486 | la8->divcount = 0; /* 10ns sample period == 100MHz samplerate */ | |
487 | ||
f4314d7e | 488 | /* Allocate memory where we'll store the de-mangled data. */ |
2e82a17b | 489 | if (!(la8->final_buf = g_try_malloc(SDRAM_SIZE))) { |
30939770 | 490 | sr_err("la8: %s: final_buf malloc failed", __func__); |
f4314d7e | 491 | ret = SR_ERR_MALLOC; |
4362438f | 492 | goto err_free_la8; |
f4314d7e UH |
493 | } |
494 | ||
495 | /* Allocate memory for the FTDI context (ftdic) and initialize it. */ | |
496 | if (!(la8->ftdic = ftdi_new())) { | |
30939770 | 497 | sr_err("la8: %s: ftdi_new failed", __func__); |
f4314d7e UH |
498 | ret = SR_ERR; /* TODO: More specific error? */ |
499 | goto err_free_final_buf; | |
500 | } | |
501 | ||
502 | /* Check for the device and temporarily open it. */ | |
503 | if ((ret = ftdi_usb_open_desc(la8->ftdic, USB_VENDOR_ID, | |
504 | USB_PRODUCT_ID, USB_DESCRIPTION, NULL)) < 0) { | |
30939770 UH |
505 | sr_err("la8: %s: ftdi_usb_open_desc: (%d) %s", |
506 | __func__, ret, ftdi_get_error_string(la8->ftdic)); | |
f4314d7e UH |
507 | (void) la8_close_usb_reset_sequencer(la8); /* Ignore errors. */ |
508 | ret = SR_ERR; /* TODO: More specific error? */ | |
509 | goto err_free_ftdic; | |
510 | } | |
b08024a8 | 511 | sr_dbg("la8: found device"); |
f4314d7e UH |
512 | |
513 | /* Register the device with libsigrok. */ | |
514 | sdi = sr_device_instance_new(0, SR_ST_INITIALIZING, | |
515 | USB_VENDOR_NAME, USB_MODEL_NAME, USB_MODEL_VERSION); | |
516 | if (!sdi) { | |
30939770 | 517 | sr_err("la8: %s: sr_device_instance_new failed", __func__); |
f4314d7e UH |
518 | ret = SR_ERR; /* TODO: More specific error? */ |
519 | goto err_close_ftdic; | |
520 | } | |
521 | ||
522 | sdi->priv = la8; | |
523 | ||
524 | device_instances = g_slist_append(device_instances, sdi); | |
525 | ||
b08024a8 | 526 | sr_dbg("la8: %s finished successfully", __func__); |
f4314d7e UH |
527 | |
528 | /* Close device. We'll reopen it again when we need it. */ | |
529 | (void) la8_close(la8); /* Log, but ignore errors. */ | |
530 | ||
531 | // return SR_OK; /* TODO */ | |
532 | return 1; | |
533 | ||
534 | err_close_ftdic: | |
535 | (void) la8_close(la8); /* Log, but ignore errors. */ | |
536 | err_free_ftdic: | |
2e82a17b | 537 | free(la8->ftdic); /* NOT g_free()! */ |
f4314d7e | 538 | err_free_final_buf: |
2e82a17b | 539 | g_free(la8->final_buf); |
f4314d7e | 540 | err_free_la8: |
2e82a17b | 541 | g_free(la8); |
f4314d7e UH |
542 | err_free_nothing: |
543 | // return ret; /* TODO */ | |
544 | return 0; | |
545 | } | |
546 | ||
547 | static int hw_opendev(int device_index) | |
548 | { | |
549 | int ret; | |
550 | struct sr_device_instance *sdi; | |
551 | struct la8 *la8; | |
552 | ||
553 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { | |
30939770 | 554 | sr_err("la8: %s: sdi was NULL", __func__); |
8703f512 | 555 | return SR_ERR; /* TODO: SR_ERR_ARG? */ |
f4314d7e UH |
556 | } |
557 | ||
558 | if (!(la8 = sdi->priv)) { | |
30939770 | 559 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
8703f512 | 560 | return SR_ERR; /* TODO: SR_ERR_ARG? */ |
f4314d7e UH |
561 | } |
562 | ||
b08024a8 | 563 | sr_dbg("la8: opening device"); |
f4314d7e UH |
564 | |
565 | /* Open the device. */ | |
566 | if ((ret = ftdi_usb_open_desc(la8->ftdic, USB_VENDOR_ID, | |
567 | USB_PRODUCT_ID, USB_DESCRIPTION, NULL)) < 0) { | |
30939770 UH |
568 | sr_err("la8: %s: ftdi_usb_open_desc: (%d) %s", |
569 | __func__, ret, ftdi_get_error_string(la8->ftdic)); | |
f4314d7e UH |
570 | (void) la8_close_usb_reset_sequencer(la8); /* Ignore errors. */ |
571 | return SR_ERR; | |
572 | } | |
b08024a8 | 573 | sr_dbg("la8: device opened successfully"); |
f4314d7e UH |
574 | |
575 | /* Purge RX/TX buffers in the FTDI chip. */ | |
576 | if ((ret = ftdi_usb_purge_buffers(la8->ftdic)) < 0) { | |
30939770 UH |
577 | sr_err("la8: %s: ftdi_usb_purge_buffers: (%d) %s", |
578 | __func__, ret, ftdi_get_error_string(la8->ftdic)); | |
f4314d7e UH |
579 | (void) la8_close_usb_reset_sequencer(la8); /* Ignore errors. */ |
580 | goto err_opendev_close_ftdic; | |
581 | } | |
b08024a8 | 582 | sr_dbg("la8: FTDI buffers purged successfully"); |
f4314d7e UH |
583 | |
584 | /* Enable flow control in the FTDI chip. */ | |
585 | if ((ret = ftdi_setflowctrl(la8->ftdic, SIO_RTS_CTS_HS)) < 0) { | |
30939770 UH |
586 | sr_err("la8: %s: ftdi_setflowcontrol: (%d) %s", |
587 | __func__, ret, ftdi_get_error_string(la8->ftdic)); | |
f4314d7e UH |
588 | (void) la8_close_usb_reset_sequencer(la8); /* Ignore errors. */ |
589 | goto err_opendev_close_ftdic; | |
590 | } | |
b08024a8 | 591 | sr_dbg("la8: FTDI flow control enabled successfully"); |
f4314d7e UH |
592 | |
593 | /* Wait 100ms. */ | |
594 | g_usleep(100 * 1000); | |
595 | ||
596 | sdi->status = SR_ST_ACTIVE; | |
597 | ||
598 | return SR_OK; | |
599 | ||
600 | err_opendev_close_ftdic: | |
601 | (void) la8_close(la8); /* Log, but ignore errors. */ | |
602 | return SR_ERR; | |
603 | } | |
604 | ||
605 | static int set_samplerate(struct sr_device_instance *sdi, uint64_t samplerate) | |
606 | { | |
607 | struct la8 *la8; | |
608 | ||
609 | if (!sdi) { | |
30939770 | 610 | sr_err("la8: %s: sdi was NULL", __func__); |
8703f512 | 611 | return SR_ERR_ARG; |
f4314d7e UH |
612 | } |
613 | ||
614 | if (!(la8 = sdi->priv)) { | |
30939770 | 615 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
8703f512 | 616 | return SR_ERR_ARG; |
f4314d7e UH |
617 | } |
618 | ||
b08024a8 | 619 | sr_dbg("la8: setting samplerate"); |
f4314d7e UH |
620 | |
621 | fill_supported_samplerates_if_needed(); | |
622 | ||
623 | /* Check if this is a samplerate supported by the hardware. */ | |
624 | if (!is_valid_samplerate(samplerate)) | |
625 | return SR_ERR; | |
626 | ||
627 | /* Set the new samplerate. */ | |
628 | la8->cur_samplerate = samplerate; | |
629 | ||
b08024a8 | 630 | sr_dbg("la8: samplerate set to %" PRIu64 "Hz", la8->cur_samplerate); |
f4314d7e UH |
631 | |
632 | return SR_OK; | |
633 | } | |
634 | ||
635 | static void hw_closedev(int device_index) | |
636 | { | |
637 | struct sr_device_instance *sdi; | |
638 | struct la8 *la8; | |
639 | ||
640 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { | |
30939770 | 641 | sr_err("la8: %s: sdi was NULL", __func__); |
f4314d7e UH |
642 | return; |
643 | } | |
644 | ||
645 | if (!(la8 = sdi->priv)) { | |
30939770 | 646 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
f4314d7e UH |
647 | return; |
648 | } | |
649 | ||
b08024a8 | 650 | sr_dbg("la8: closing device"); |
f4314d7e UH |
651 | |
652 | if (sdi->status == SR_ST_ACTIVE) { | |
b08024a8 | 653 | sr_dbg("la8: %s: status ACTIVE, closing device", __func__); |
f4314d7e UH |
654 | (void) la8_close_usb_reset_sequencer(la8); /* Ignore errors. */ |
655 | } else { | |
b08024a8 | 656 | sr_dbg("la8: %s: status not ACTIVE, nothing to do", __func__); |
f4314d7e UH |
657 | } |
658 | ||
659 | sdi->status = SR_ST_INACTIVE; | |
2f5c8c96 UH |
660 | |
661 | sr_dbg("la8: %s: freeing sample buffers", __func__); | |
2f5c8c96 | 662 | free(la8->final_buf); |
f4314d7e UH |
663 | } |
664 | ||
665 | static void hw_cleanup(void) | |
666 | { | |
667 | GSList *l; | |
668 | struct sr_device_instance *sdi; | |
669 | ||
b08024a8 | 670 | sr_dbg("la8: entering %s", __func__); |
f4314d7e UH |
671 | |
672 | /* Properly close all devices. */ | |
673 | for (l = device_instances; l; l = l->next) { | |
674 | if ((sdi = l->data) == NULL) { | |
30939770 | 675 | sr_warn("la8: %s: sdi was NULL, continuing", __func__); |
f4314d7e UH |
676 | continue; |
677 | } | |
678 | if (sdi->priv != NULL) | |
679 | free(sdi->priv); | |
680 | else | |
30939770 UH |
681 | sr_warn("la8: %s: sdi->priv was NULL, nothing " |
682 | "to do", __func__); | |
f4314d7e UH |
683 | sr_device_instance_free(sdi); /* Returns void. */ |
684 | } | |
685 | g_slist_free(device_instances); /* Returns void. */ | |
686 | device_instances = NULL; | |
687 | } | |
688 | ||
689 | static void *hw_get_device_info(int device_index, int device_info_id) | |
690 | { | |
691 | struct sr_device_instance *sdi; | |
692 | struct la8 *la8; | |
693 | void *info; | |
694 | ||
b08024a8 | 695 | sr_dbg("la8: entering %s", __func__); |
f4314d7e UH |
696 | |
697 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { | |
30939770 | 698 | sr_err("la8: %s: sdi was NULL", __func__); |
f4314d7e UH |
699 | return NULL; |
700 | } | |
701 | ||
702 | if (!(la8 = sdi->priv)) { | |
30939770 | 703 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
f4314d7e UH |
704 | return NULL; |
705 | } | |
706 | ||
707 | switch (device_info_id) { | |
708 | case SR_DI_INSTANCE: | |
709 | info = sdi; | |
710 | break; | |
711 | case SR_DI_NUM_PROBES: | |
712 | info = GINT_TO_POINTER(NUM_PROBES); | |
713 | break; | |
714 | case SR_DI_SAMPLERATES: | |
715 | fill_supported_samplerates_if_needed(); | |
716 | info = &samplerates; | |
717 | break; | |
718 | case SR_DI_TRIGGER_TYPES: | |
719 | info = (char *)TRIGGER_TYPES; | |
720 | break; | |
721 | case SR_DI_CUR_SAMPLERATE: | |
722 | info = &la8->cur_samplerate; | |
723 | break; | |
724 | default: | |
725 | /* Unknown device info ID, return NULL. */ | |
30939770 | 726 | sr_err("la8: %s: Unknown device info ID", __func__); |
f4314d7e UH |
727 | info = NULL; |
728 | break; | |
729 | } | |
730 | ||
731 | return info; | |
732 | } | |
733 | ||
734 | static int hw_get_status(int device_index) | |
735 | { | |
736 | struct sr_device_instance *sdi; | |
737 | ||
738 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { | |
b08024a8 | 739 | sr_warn("la8: %s: sdi was NULL, device not found", __func__); |
f4314d7e UH |
740 | return SR_ST_NOT_FOUND; |
741 | } | |
742 | ||
b08024a8 | 743 | sr_dbg("la8: %s: returning status %d", __func__, sdi->status); |
f4314d7e UH |
744 | |
745 | return sdi->status; | |
746 | } | |
747 | ||
748 | static int *hw_get_capabilities(void) | |
749 | { | |
b08024a8 | 750 | sr_dbg("la8: entering %s", __func__); |
f4314d7e UH |
751 | |
752 | return capabilities; | |
753 | } | |
754 | ||
755 | static int hw_set_configuration(int device_index, int capability, void *value) | |
756 | { | |
757 | struct sr_device_instance *sdi; | |
758 | struct la8 *la8; | |
759 | ||
b08024a8 | 760 | sr_dbg("la8: entering %s", __func__); |
f4314d7e UH |
761 | |
762 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { | |
30939770 | 763 | sr_err("la8: %s: sdi was NULL", __func__); |
8703f512 | 764 | return SR_ERR; /* TODO: SR_ERR_ARG? */ |
f4314d7e UH |
765 | } |
766 | ||
767 | if (!(la8 = sdi->priv)) { | |
30939770 | 768 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
8703f512 | 769 | return SR_ERR; /* TODO: SR_ERR_ARG? */ |
f4314d7e UH |
770 | } |
771 | ||
772 | switch (capability) { | |
773 | case SR_HWCAP_SAMPLERATE: | |
774 | if (set_samplerate(sdi, *(uint64_t *)value) == SR_ERR) | |
775 | return SR_ERR; | |
b08024a8 | 776 | sr_dbg("la8: SAMPLERATE = %" PRIu64, la8->cur_samplerate); |
f4314d7e UH |
777 | break; |
778 | case SR_HWCAP_PROBECONFIG: | |
ecaf59db UH |
779 | if (configure_probes(la8, (GSList *)value) != SR_OK) { |
780 | sr_err("la8: %s: probe config failed", __func__); | |
781 | return SR_ERR; | |
782 | } | |
f4314d7e UH |
783 | break; |
784 | case SR_HWCAP_LIMIT_MSEC: | |
785 | if (*(uint64_t *)value == 0) { | |
30939770 | 786 | sr_err("la8: %s: LIMIT_MSEC can't be 0", __func__); |
f4314d7e UH |
787 | return SR_ERR; |
788 | } | |
789 | la8->limit_msec = *(uint64_t *)value; | |
b08024a8 | 790 | sr_dbg("la8: LIMIT_MSEC = %" PRIu64, la8->limit_msec); |
f4314d7e UH |
791 | break; |
792 | case SR_HWCAP_LIMIT_SAMPLES: | |
793 | if (*(uint64_t *)value < MIN_NUM_SAMPLES) { | |
30939770 | 794 | sr_err("la8: %s: LIMIT_SAMPLES too small", __func__); |
f4314d7e UH |
795 | return SR_ERR; |
796 | } | |
797 | la8->limit_samples = *(uint64_t *)value; | |
b08024a8 | 798 | sr_dbg("la8: LIMIT_SAMPLES = %" PRIu64, la8->limit_samples); |
f4314d7e UH |
799 | break; |
800 | default: | |
801 | /* Unknown capability, return SR_ERR. */ | |
30939770 | 802 | sr_err("la8: %s: Unknown capability", __func__); |
f4314d7e UH |
803 | return SR_ERR; |
804 | break; | |
805 | } | |
806 | ||
807 | return SR_OK; | |
808 | } | |
809 | ||
810 | /** | |
811 | * Get a block of 4096 bytes of data from the LA8. | |
812 | * | |
813 | * @param la8 The LA8 struct containing private per-device-instance data. | |
814 | * @return SR_OK upon success, or SR_ERR upon errors. | |
815 | */ | |
816 | static int la8_read_block(struct la8 *la8) | |
817 | { | |
818 | int i, byte_offset, m, mi, p, index, bytes_read; | |
819 | time_t now; | |
820 | ||
821 | if (!la8) { | |
30939770 | 822 | sr_err("la8: %s: la8 was NULL", __func__); |
8703f512 | 823 | return SR_ERR_ARG; |
f4314d7e UH |
824 | } |
825 | ||
826 | if (!la8->ftdic) { | |
30939770 | 827 | sr_err("la8: %s: la8->ftdic was NULL", __func__); |
8703f512 | 828 | return SR_ERR_ARG; |
f4314d7e UH |
829 | } |
830 | ||
b08024a8 | 831 | // sr_dbg("la8: %s: reading block %d", __func__, la8->block_counter); |
f4314d7e UH |
832 | |
833 | bytes_read = la8_read(la8, la8->mangled_buf, 4096); | |
834 | ||
835 | /* If first block read got 0 bytes, retry until success or timeout. */ | |
836 | if ((bytes_read == 0) && (la8->block_counter == 0)) { | |
837 | do { | |
b08024a8 | 838 | // sr_dbg("la8: %s: reading block 0 again", __func__); |
f4314d7e UH |
839 | bytes_read = la8_read(la8, la8->mangled_buf, 4096); |
840 | /* TODO: How to handle read errors here? */ | |
841 | now = time(NULL); | |
842 | } while ((la8->done > now) && (bytes_read == 0)); | |
843 | } | |
844 | ||
845 | /* Check if block read was successful or a timeout occured. */ | |
846 | if (bytes_read != 4096) { | |
b08024a8 | 847 | sr_warn("la8: %s: trigger timed out", __func__); |
f4314d7e UH |
848 | (void) la8_reset(la8); /* Ignore errors. */ |
849 | return SR_ERR; | |
850 | } | |
851 | ||
852 | /* De-mangle the data. */ | |
b08024a8 | 853 | // sr_dbg("la8: de-mangling samples of block %d", la8->block_counter); |
f4314d7e UH |
854 | byte_offset = la8->block_counter * 4096; |
855 | m = byte_offset / (1024 * 1024); | |
856 | mi = m * (1024 * 1024); | |
857 | for (i = 0; i < 4096; i++) { | |
858 | p = i & (1 << 0); | |
859 | index = m * 2 + (((byte_offset + i) - mi) / 2) * 16; | |
860 | index += (la8->divcount == 0) ? p : (1 - p); | |
861 | la8->final_buf[index] = la8->mangled_buf[i]; | |
862 | } | |
863 | ||
864 | return SR_OK; | |
865 | } | |
866 | ||
867 | static int receive_data(int fd, int revents, void *user_data) | |
868 | { | |
869 | int i, ret; | |
870 | struct sr_device_instance *sdi; | |
871 | struct sr_datafeed_packet packet; | |
872 | struct la8 *la8; | |
873 | ||
874 | /* Avoid compiler errors. */ | |
875 | fd = fd; | |
876 | revents = revents; | |
877 | ||
878 | if (!(sdi = user_data)) { | |
30939770 | 879 | sr_err("la8: %s: user_data was NULL", __func__); |
f4314d7e UH |
880 | return FALSE; |
881 | } | |
882 | ||
883 | if (!(la8 = sdi->priv)) { | |
30939770 | 884 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
f4314d7e UH |
885 | return FALSE; |
886 | } | |
887 | ||
888 | /* Get one block of data (4096 bytes). */ | |
889 | if ((ret = la8_read_block(la8)) < 0) { | |
30939770 | 890 | sr_err("la8: %s: la8_read_block error: %d", __func__, ret); |
ecaf59db | 891 | hw_stop_acquisition(sdi->index, user_data); |
f4314d7e UH |
892 | return FALSE; |
893 | } | |
894 | ||
895 | /* We need to get exactly 2048 blocks (i.e. 8MB) of data. */ | |
896 | if (la8->block_counter != 2047) { | |
897 | la8->block_counter++; | |
898 | return TRUE; | |
899 | } | |
900 | ||
b08024a8 | 901 | sr_dbg("la8: sampling finished, sending data to session bus now"); |
f4314d7e UH |
902 | |
903 | /* All data was received and demangled, send it to the session bus. */ | |
904 | for (i = 0; i < 2048; i++) { | |
905 | /* Send a 4096 byte SR_DF_LOGIC packet to the session bus. */ | |
b08024a8 | 906 | // sr_dbg("la8: %s: sending SR_DF_LOGIC packet", __func__); |
f4314d7e UH |
907 | packet.type = SR_DF_LOGIC; |
908 | packet.length = 4096; | |
909 | packet.unitsize = 1; | |
910 | packet.payload = la8->final_buf + (i * 4096); | |
911 | sr_session_bus(la8->session_id, &packet); | |
912 | } | |
913 | ||
914 | hw_stop_acquisition(sdi->index, user_data); | |
915 | ||
916 | // return FALSE; /* FIXME? */ | |
917 | return TRUE; | |
918 | } | |
919 | ||
920 | static int hw_start_acquisition(int device_index, gpointer session_device_id) | |
921 | { | |
922 | struct sr_device_instance *sdi; | |
923 | struct la8 *la8; | |
924 | struct sr_datafeed_packet packet; | |
925 | struct sr_datafeed_header header; | |
926 | uint8_t buf[4]; | |
927 | int bytes_written; | |
928 | ||
b08024a8 | 929 | sr_dbg("la8: entering %s", __func__); |
f4314d7e UH |
930 | |
931 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { | |
30939770 | 932 | sr_err("la8: %s: sdi was NULL", __func__); |
8703f512 | 933 | return SR_ERR; /* TODO: SR_ERR_ARG? */ |
f4314d7e UH |
934 | } |
935 | ||
936 | if (!(la8 = sdi->priv)) { | |
30939770 | 937 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
8703f512 | 938 | return SR_ERR; /* TODO: SR_ERR_ARG? */ |
f4314d7e UH |
939 | } |
940 | ||
941 | if (!la8->ftdic) { | |
30939770 | 942 | sr_err("la8: %s: la8->ftdic was NULL", __func__); |
8703f512 | 943 | return SR_ERR_ARG; |
f4314d7e UH |
944 | } |
945 | ||
946 | la8->divcount = samplerate_to_divcount(la8->cur_samplerate); | |
947 | if (la8->divcount == 0xff) { | |
30939770 | 948 | sr_err("la8: %s: invalid divcount/samplerate", __func__); |
f4314d7e UH |
949 | return SR_ERR; |
950 | } | |
951 | ||
952 | /* Fill acquisition parameters into buf[]. */ | |
953 | buf[0] = la8->divcount; | |
954 | buf[1] = 0xff; /* This byte must always be 0xff. */ | |
955 | buf[2] = la8->trigger_pattern; | |
956 | buf[3] = la8->trigger_mask; | |
957 | ||
958 | /* Start acquisition. */ | |
959 | bytes_written = la8_write(la8, buf, 4); | |
960 | ||
961 | if (bytes_written < 0) { | |
30939770 | 962 | sr_err("la8: acquisition failed to start"); |
f4314d7e UH |
963 | return SR_ERR; |
964 | } else if (bytes_written != 4) { | |
30939770 | 965 | sr_err("la8: acquisition failed to start"); |
f4314d7e UH |
966 | return SR_ERR; /* TODO: Other error and return code? */ |
967 | } | |
968 | ||
b08024a8 | 969 | sr_dbg("la8: acquisition started successfully"); |
f4314d7e UH |
970 | |
971 | la8->session_id = session_device_id; | |
972 | ||
973 | /* Send header packet to the session bus. */ | |
b08024a8 | 974 | sr_dbg("la8: %s: sending SR_DF_HEADER", __func__); |
f4314d7e UH |
975 | packet.type = SR_DF_HEADER; |
976 | packet.length = sizeof(struct sr_datafeed_header); | |
977 | packet.unitsize = 0; | |
978 | packet.payload = &header; | |
979 | header.feed_version = 1; | |
980 | gettimeofday(&header.starttime, NULL); | |
981 | header.samplerate = la8->cur_samplerate; | |
982 | header.protocol_id = SR_PROTO_RAW; | |
4bc5fd45 | 983 | header.num_logic_probes = NUM_PROBES; |
f4314d7e UH |
984 | header.num_analog_probes = 0; |
985 | sr_session_bus(session_device_id, &packet); | |
986 | ||
987 | /* Time when we should be done (for detecting trigger timeouts). */ | |
988 | la8->done = (la8->divcount + 1) * 0.08388608 + time(NULL) | |
989 | + la8->trigger_timeout; | |
990 | la8->block_counter = 0; | |
991 | ||
992 | /* Hook up a dummy handler to receive data from the LA8. */ | |
993 | sr_source_add(-1, G_IO_IN, 0, receive_data, sdi); | |
994 | ||
995 | return SR_OK; | |
996 | } | |
997 | ||
998 | static void hw_stop_acquisition(int device_index, gpointer session_device_id) | |
999 | { | |
1000 | struct sr_device_instance *sdi; | |
1001 | struct la8 *la8; | |
1002 | struct sr_datafeed_packet packet; | |
1003 | ||
b08024a8 | 1004 | sr_dbg("la8: stopping acquisition"); |
f4314d7e UH |
1005 | |
1006 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { | |
30939770 | 1007 | sr_err("la8: %s: sdi was NULL", __func__); |
f4314d7e UH |
1008 | return; |
1009 | } | |
1010 | ||
1011 | if (!(la8 = sdi->priv)) { | |
30939770 | 1012 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
f4314d7e UH |
1013 | return; |
1014 | } | |
1015 | ||
f4314d7e | 1016 | /* Send end packet to the session bus. */ |
b08024a8 | 1017 | sr_dbg("la8: %s: sending SR_DF_END", __func__); |
f4314d7e UH |
1018 | packet.type = SR_DF_END; |
1019 | packet.length = 0; | |
1020 | packet.unitsize = 0; | |
1021 | packet.payload = NULL; | |
1022 | sr_session_bus(session_device_id, &packet); | |
1023 | } | |
1024 | ||
1025 | struct sr_device_plugin chronovu_la8_plugin_info = { | |
1026 | .name = "chronovu-la8", | |
1027 | .longname = "ChronoVu LA8", | |
1028 | .api_version = 1, | |
1029 | .init = hw_init, | |
1030 | .cleanup = hw_cleanup, | |
1031 | .open = hw_opendev, | |
1032 | .close = hw_closedev, | |
1033 | .get_device_info = hw_get_device_info, | |
1034 | .get_status = hw_get_status, | |
1035 | .get_capabilities = hw_get_capabilities, | |
1036 | .set_configuration = hw_set_configuration, | |
1037 | .start_acquisition = hw_start_acquisition, | |
1038 | .stop_acquisition = hw_stop_acquisition, | |
1039 | }; |