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b908f067 UH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2011-2012 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> | |
22 | #include <glib.h> | |
23 | #include <string.h> | |
45c59c8b BV |
24 | #include "libsigrok.h" |
25 | #include "libsigrok-internal.h" | |
b908f067 UH |
26 | #include "driver.h" |
27 | ||
765ef2f7 BV |
28 | SR_PRIV struct sr_dev_driver chronovu_la8_driver_info; |
29 | static struct sr_dev_driver *cdi = &chronovu_la8_driver_info; | |
b908f067 | 30 | |
74e5f12d UH |
31 | /* |
32 | * The ChronoVu LA8 can have multiple PIDs. Older versions shipped with | |
33 | * a standard FTDI USB VID/PID of 0403:6001, newer ones have 0403:8867. | |
34 | */ | |
35 | static const uint16_t usb_pids[] = { | |
36 | 0x6001, | |
37 | 0x8867, | |
38 | }; | |
39 | ||
b908f067 UH |
40 | /* Function prototypes. */ |
41 | static int hw_dev_acquisition_stop(int dev_index, void *cb_data); | |
42 | ||
c4f3ed4b BV |
43 | static void clear_instances(void) |
44 | { | |
45 | GSList *l; | |
46 | struct sr_dev_inst *sdi; | |
47 | struct context *ctx; | |
48 | ||
49 | /* Properly close all devices. */ | |
50 | for (l = cdi->instances; l; l = l->next) { | |
51 | if (!(sdi = l->data)) { | |
52 | /* Log error, but continue cleaning up the rest. */ | |
53 | sr_err("la8: %s: sdi was NULL, continuing", __func__); | |
54 | continue; | |
55 | } | |
56 | if (sdi->priv) { | |
57 | ctx = sdi->priv; | |
58 | ftdi_free(ctx->ftdic); | |
59 | g_free(ctx); | |
60 | } | |
61 | sr_dev_inst_free(sdi); | |
62 | } | |
63 | g_slist_free(cdi->instances); | |
64 | cdi->instances = NULL; | |
65 | ||
66 | } | |
67 | ||
40dda2c3 | 68 | static int hw_init(void) |
61136ea6 BV |
69 | { |
70 | ||
71 | /* Nothing to do. */ | |
72 | ||
73 | return SR_OK; | |
74 | } | |
75 | ||
c4f3ed4b | 76 | static GSList *hw_scan(GSList *options) |
b908f067 | 77 | { |
b908f067 UH |
78 | struct sr_dev_inst *sdi; |
79 | struct context *ctx; | |
c4f3ed4b | 80 | GSList *devices; |
9c4311c5 BV |
81 | unsigned int i; |
82 | int ret; | |
c4f3ed4b BV |
83 | |
84 | (void)options; | |
85 | devices = NULL; | |
b908f067 | 86 | |
b908f067 UH |
87 | /* Allocate memory for our private driver context. */ |
88 | if (!(ctx = g_try_malloc(sizeof(struct context)))) { | |
89 | sr_err("la8: %s: struct context malloc failed", __func__); | |
90 | goto err_free_nothing; | |
91 | } | |
92 | ||
93 | /* Set some sane defaults. */ | |
94 | ctx->ftdic = NULL; | |
95 | ctx->cur_samplerate = SR_MHZ(100); /* 100MHz == max. samplerate */ | |
96 | ctx->limit_msec = 0; | |
97 | ctx->limit_samples = 0; | |
98 | ctx->session_dev_id = NULL; | |
99 | memset(ctx->mangled_buf, 0, BS); | |
100 | ctx->final_buf = NULL; | |
101 | ctx->trigger_pattern = 0x00; /* Value irrelevant, see trigger_mask. */ | |
102 | ctx->trigger_mask = 0x00; /* All probes are "don't care". */ | |
103 | ctx->trigger_timeout = 10; /* Default to 10s trigger timeout. */ | |
104 | ctx->trigger_found = 0; | |
105 | ctx->done = 0; | |
106 | ctx->block_counter = 0; | |
107 | ctx->divcount = 0; /* 10ns sample period == 100MHz samplerate */ | |
d67b663e | 108 | ctx->usb_pid = 0; |
b908f067 UH |
109 | |
110 | /* Allocate memory where we'll store the de-mangled data. */ | |
111 | if (!(ctx->final_buf = g_try_malloc(SDRAM_SIZE))) { | |
112 | sr_err("la8: %s: final_buf malloc failed", __func__); | |
113 | goto err_free_ctx; | |
114 | } | |
115 | ||
116 | /* Allocate memory for the FTDI context (ftdic) and initialize it. */ | |
117 | if (!(ctx->ftdic = ftdi_new())) { | |
118 | sr_err("la8: %s: ftdi_new failed", __func__); | |
119 | goto err_free_final_buf; | |
120 | } | |
121 | ||
122 | /* Check for the device and temporarily open it. */ | |
74e5f12d UH |
123 | for (i = 0; i < ARRAY_SIZE(usb_pids); i++) { |
124 | sr_dbg("la8: Probing for VID/PID %04x:%04x.", USB_VENDOR_ID, | |
125 | usb_pids[i]); | |
126 | ret = ftdi_usb_open_desc(ctx->ftdic, USB_VENDOR_ID, | |
127 | usb_pids[i], USB_DESCRIPTION, NULL); | |
128 | if (ret == 0) { | |
129 | sr_dbg("la8: Found LA8 device (%04x:%04x).", | |
130 | USB_VENDOR_ID, usb_pids[i]); | |
131 | ctx->usb_pid = usb_pids[i]; | |
132 | } | |
b908f067 | 133 | } |
74e5f12d UH |
134 | |
135 | if (ctx->usb_pid == 0) | |
136 | goto err_free_ftdic; | |
b908f067 UH |
137 | |
138 | /* Register the device with libsigrok. */ | |
139 | sdi = sr_dev_inst_new(0, SR_ST_INITIALIZING, | |
140 | USB_VENDOR_NAME, USB_MODEL_NAME, USB_MODEL_VERSION); | |
141 | if (!sdi) { | |
142 | sr_err("la8: %s: sr_dev_inst_new failed", __func__); | |
143 | goto err_close_ftdic; | |
144 | } | |
cfe8a84d | 145 | sdi->driver = cdi; |
b908f067 UH |
146 | sdi->priv = ctx; |
147 | ||
c4f3ed4b | 148 | devices = g_slist_append(devices, sdi); |
765ef2f7 | 149 | cdi->instances = g_slist_append(cdi->instances, sdi); |
b908f067 UH |
150 | |
151 | sr_spew("la8: Device init successful."); | |
152 | ||
153 | /* Close device. We'll reopen it again when we need it. */ | |
154 | (void) la8_close(ctx); /* Log, but ignore errors. */ | |
155 | ||
c4f3ed4b | 156 | return devices; |
b908f067 UH |
157 | |
158 | err_close_ftdic: | |
159 | (void) la8_close(ctx); /* Log, but ignore errors. */ | |
160 | err_free_ftdic: | |
161 | free(ctx->ftdic); /* NOT g_free()! */ | |
162 | err_free_final_buf: | |
163 | g_free(ctx->final_buf); | |
164 | err_free_ctx: | |
165 | g_free(ctx); | |
166 | err_free_nothing: | |
167 | ||
c4f3ed4b | 168 | return NULL; |
b908f067 UH |
169 | } |
170 | ||
171 | static int hw_dev_open(int dev_index) | |
172 | { | |
173 | int ret; | |
174 | struct sr_dev_inst *sdi; | |
175 | struct context *ctx; | |
176 | ||
765ef2f7 | 177 | if (!(sdi = sr_dev_inst_get(cdi->instances, dev_index))) { |
b908f067 UH |
178 | sr_err("la8: %s: sdi was NULL", __func__); |
179 | return SR_ERR_BUG; | |
180 | } | |
181 | ||
182 | if (!(ctx = sdi->priv)) { | |
183 | sr_err("la8: %s: sdi->priv was NULL", __func__); | |
184 | return SR_ERR_BUG; | |
185 | } | |
186 | ||
187 | sr_dbg("la8: Opening LA8 device (%04x:%04x).", USB_VENDOR_ID, | |
74e5f12d | 188 | ctx->usb_pid); |
b908f067 UH |
189 | |
190 | /* Open the device. */ | |
191 | if ((ret = ftdi_usb_open_desc(ctx->ftdic, USB_VENDOR_ID, | |
74e5f12d | 192 | ctx->usb_pid, USB_DESCRIPTION, NULL)) < 0) { |
b908f067 UH |
193 | sr_err("la8: %s: ftdi_usb_open_desc: (%d) %s", |
194 | __func__, ret, ftdi_get_error_string(ctx->ftdic)); | |
195 | (void) la8_close_usb_reset_sequencer(ctx); /* Ignore errors. */ | |
196 | return SR_ERR; | |
197 | } | |
198 | sr_dbg("la8: Device opened successfully."); | |
199 | ||
200 | /* Purge RX/TX buffers in the FTDI chip. */ | |
201 | if ((ret = ftdi_usb_purge_buffers(ctx->ftdic)) < 0) { | |
202 | sr_err("la8: %s: ftdi_usb_purge_buffers: (%d) %s", | |
203 | __func__, ret, ftdi_get_error_string(ctx->ftdic)); | |
204 | (void) la8_close_usb_reset_sequencer(ctx); /* Ignore errors. */ | |
205 | goto err_dev_open_close_ftdic; | |
206 | } | |
207 | sr_dbg("la8: FTDI buffers purged successfully."); | |
208 | ||
209 | /* Enable flow control in the FTDI chip. */ | |
210 | if ((ret = ftdi_setflowctrl(ctx->ftdic, SIO_RTS_CTS_HS)) < 0) { | |
211 | sr_err("la8: %s: ftdi_setflowcontrol: (%d) %s", | |
212 | __func__, ret, ftdi_get_error_string(ctx->ftdic)); | |
213 | (void) la8_close_usb_reset_sequencer(ctx); /* Ignore errors. */ | |
214 | goto err_dev_open_close_ftdic; | |
215 | } | |
216 | sr_dbg("la8: FTDI flow control enabled successfully."); | |
217 | ||
218 | /* Wait 100ms. */ | |
219 | g_usleep(100 * 1000); | |
220 | ||
221 | sdi->status = SR_ST_ACTIVE; | |
222 | ||
223 | return SR_OK; | |
224 | ||
225 | err_dev_open_close_ftdic: | |
226 | (void) la8_close(ctx); /* Log, but ignore errors. */ | |
227 | return SR_ERR; | |
228 | } | |
229 | ||
230 | static int hw_dev_close(int dev_index) | |
231 | { | |
232 | struct sr_dev_inst *sdi; | |
233 | struct context *ctx; | |
234 | ||
765ef2f7 | 235 | if (!(sdi = sr_dev_inst_get(cdi->instances, dev_index))) { |
b908f067 UH |
236 | sr_err("la8: %s: sdi was NULL", __func__); |
237 | return SR_ERR_BUG; | |
238 | } | |
239 | ||
240 | if (!(ctx = sdi->priv)) { | |
241 | sr_err("la8: %s: sdi->priv was NULL", __func__); | |
242 | return SR_ERR_BUG; | |
243 | } | |
244 | ||
245 | sr_dbg("la8: Closing device."); | |
246 | ||
247 | if (sdi->status == SR_ST_ACTIVE) { | |
248 | sr_dbg("la8: Status ACTIVE, closing device."); | |
249 | /* TODO: Really ignore errors here, or return SR_ERR? */ | |
250 | (void) la8_close_usb_reset_sequencer(ctx); /* Ignore errors. */ | |
251 | } else { | |
252 | sr_spew("la8: Status not ACTIVE, nothing to do."); | |
253 | } | |
254 | ||
255 | sdi->status = SR_ST_INACTIVE; | |
256 | ||
257 | sr_dbg("la8: Freeing sample buffer."); | |
258 | g_free(ctx->final_buf); | |
259 | ||
260 | return SR_OK; | |
261 | } | |
262 | ||
263 | static int hw_cleanup(void) | |
264 | { | |
b908f067 | 265 | |
c4f3ed4b | 266 | clear_instances(); |
b908f067 | 267 | |
c4f3ed4b | 268 | return SR_OK; |
b908f067 UH |
269 | } |
270 | ||
6a2761fd BV |
271 | static int hw_info_get(int info_id, const void **data, |
272 | const struct sr_dev_inst *sdi) | |
b908f067 | 273 | { |
b908f067 | 274 | struct context *ctx; |
b908f067 | 275 | |
6a2761fd | 276 | switch (info_id) { |
b908f067 | 277 | case SR_DI_INST: |
6a2761fd | 278 | *data = sdi; |
b908f067 UH |
279 | sr_spew("la8: %s: Returning sdi.", __func__); |
280 | break; | |
7566601c BV |
281 | case SR_DI_HWCAPS: |
282 | *data = hwcaps; | |
283 | break; | |
b908f067 | 284 | case SR_DI_NUM_PROBES: |
6a2761fd | 285 | *data = GINT_TO_POINTER(NUM_PROBES); |
b908f067 UH |
286 | sr_spew("la8: %s: Returning number of probes: %d.", __func__, |
287 | NUM_PROBES); | |
288 | break; | |
289 | case SR_DI_PROBE_NAMES: | |
6a2761fd | 290 | *data = probe_names; |
b908f067 UH |
291 | sr_spew("la8: %s: Returning probenames.", __func__); |
292 | break; | |
293 | case SR_DI_SAMPLERATES: | |
294 | fill_supported_samplerates_if_needed(); | |
6a2761fd | 295 | *data = &samplerates; |
b908f067 UH |
296 | sr_spew("la8: %s: Returning samplerates.", __func__); |
297 | break; | |
298 | case SR_DI_TRIGGER_TYPES: | |
6a2761fd | 299 | *data = (char *)TRIGGER_TYPES; |
b908f067 UH |
300 | sr_spew("la8: %s: Returning trigger types: %s.", __func__, |
301 | TRIGGER_TYPES); | |
302 | break; | |
303 | case SR_DI_CUR_SAMPLERATE: | |
6a2761fd BV |
304 | if (sdi) { |
305 | ctx = sdi->priv; | |
306 | *data = &ctx->cur_samplerate; | |
307 | sr_spew("la8: %s: Returning samplerate: %" PRIu64 "Hz.", | |
308 | __func__, ctx->cur_samplerate); | |
309 | } else | |
310 | return SR_ERR; | |
b908f067 | 311 | break; |
cfe8a84d BV |
312 | default: |
313 | return SR_ERR_ARG; | |
b908f067 UH |
314 | } |
315 | ||
6a2761fd | 316 | return SR_OK; |
b908f067 UH |
317 | } |
318 | ||
319 | static int hw_dev_status_get(int dev_index) | |
320 | { | |
321 | struct sr_dev_inst *sdi; | |
322 | ||
765ef2f7 | 323 | if (!(sdi = sr_dev_inst_get(cdi->instances, dev_index))) { |
b908f067 UH |
324 | sr_err("la8: %s: sdi was NULL, device not found", __func__); |
325 | return SR_ST_NOT_FOUND; | |
326 | } | |
327 | ||
328 | sr_dbg("la8: Returning status: %d.", sdi->status); | |
329 | ||
330 | return sdi->status; | |
331 | } | |
332 | ||
6f4b1868 BV |
333 | static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, |
334 | const void *value) | |
b908f067 | 335 | { |
b908f067 UH |
336 | struct context *ctx; |
337 | ||
b908f067 UH |
338 | if (!(ctx = sdi->priv)) { |
339 | sr_err("la8: %s: sdi->priv was NULL", __func__); | |
340 | return SR_ERR_BUG; | |
341 | } | |
342 | ||
b908f067 UH |
343 | switch (hwcap) { |
344 | case SR_HWCAP_SAMPLERATE: | |
345 | if (set_samplerate(sdi, *(const uint64_t *)value) == SR_ERR) { | |
346 | sr_err("la8: %s: setting samplerate failed.", __func__); | |
347 | return SR_ERR; | |
348 | } | |
349 | sr_dbg("la8: SAMPLERATE = %" PRIu64, ctx->cur_samplerate); | |
350 | break; | |
351 | case SR_HWCAP_PROBECONFIG: | |
352 | if (configure_probes(ctx, (const GSList *)value) != SR_OK) { | |
353 | sr_err("la8: %s: probe config failed.", __func__); | |
354 | return SR_ERR; | |
355 | } | |
356 | break; | |
357 | case SR_HWCAP_LIMIT_MSEC: | |
358 | if (*(const uint64_t *)value == 0) { | |
359 | sr_err("la8: %s: LIMIT_MSEC can't be 0.", __func__); | |
360 | return SR_ERR; | |
361 | } | |
362 | ctx->limit_msec = *(const uint64_t *)value; | |
363 | sr_dbg("la8: LIMIT_MSEC = %" PRIu64, ctx->limit_msec); | |
364 | break; | |
365 | case SR_HWCAP_LIMIT_SAMPLES: | |
366 | if (*(const uint64_t *)value < MIN_NUM_SAMPLES) { | |
367 | sr_err("la8: %s: LIMIT_SAMPLES too small.", __func__); | |
368 | return SR_ERR; | |
369 | } | |
370 | ctx->limit_samples = *(const uint64_t *)value; | |
371 | sr_dbg("la8: LIMIT_SAMPLES = %" PRIu64, ctx->limit_samples); | |
372 | break; | |
373 | default: | |
374 | /* Unknown capability, return SR_ERR. */ | |
375 | sr_err("la8: %s: Unknown capability.", __func__); | |
376 | return SR_ERR; | |
377 | break; | |
378 | } | |
379 | ||
380 | return SR_OK; | |
381 | } | |
382 | ||
383 | static int receive_data(int fd, int revents, void *cb_data) | |
384 | { | |
385 | int i, ret; | |
386 | struct sr_dev_inst *sdi; | |
387 | struct context *ctx; | |
388 | ||
389 | /* Avoid compiler errors. */ | |
390 | (void)fd; | |
391 | (void)revents; | |
392 | ||
393 | if (!(sdi = cb_data)) { | |
394 | sr_err("la8: %s: cb_data was NULL", __func__); | |
395 | return FALSE; | |
396 | } | |
397 | ||
398 | if (!(ctx = sdi->priv)) { | |
399 | sr_err("la8: %s: sdi->priv was NULL", __func__); | |
400 | return FALSE; | |
401 | } | |
402 | ||
403 | if (!ctx->ftdic) { | |
404 | sr_err("la8: %s: ctx->ftdic was NULL", __func__); | |
405 | return FALSE; | |
406 | } | |
407 | ||
408 | /* Get one block of data. */ | |
409 | if ((ret = la8_read_block(ctx)) < 0) { | |
410 | sr_err("la8: %s: la8_read_block error: %d", __func__, ret); | |
411 | hw_dev_acquisition_stop(sdi->index, sdi); | |
412 | return FALSE; | |
413 | } | |
414 | ||
415 | /* We need to get exactly NUM_BLOCKS blocks (i.e. 8MB) of data. */ | |
416 | if (ctx->block_counter != (NUM_BLOCKS - 1)) { | |
417 | ctx->block_counter++; | |
418 | return TRUE; | |
419 | } | |
420 | ||
421 | sr_dbg("la8: Sampling finished, sending data to session bus now."); | |
422 | ||
423 | /* All data was received and demangled, send it to the session bus. */ | |
424 | for (i = 0; i < NUM_BLOCKS; i++) | |
425 | send_block_to_session_bus(ctx, i); | |
426 | ||
427 | hw_dev_acquisition_stop(sdi->index, sdi); | |
428 | ||
429 | // return FALSE; /* FIXME? */ | |
430 | return TRUE; | |
431 | } | |
432 | ||
433 | static int hw_dev_acquisition_start(int dev_index, void *cb_data) | |
434 | { | |
435 | struct sr_dev_inst *sdi; | |
436 | struct context *ctx; | |
437 | struct sr_datafeed_packet packet; | |
438 | struct sr_datafeed_header header; | |
439 | struct sr_datafeed_meta_logic meta; | |
440 | uint8_t buf[4]; | |
441 | int bytes_written; | |
442 | ||
765ef2f7 | 443 | if (!(sdi = sr_dev_inst_get(cdi->instances, dev_index))) { |
b908f067 UH |
444 | sr_err("la8: %s: sdi was NULL", __func__); |
445 | return SR_ERR_BUG; | |
446 | } | |
447 | ||
448 | if (!(ctx = sdi->priv)) { | |
449 | sr_err("la8: %s: sdi->priv was NULL", __func__); | |
450 | return SR_ERR_BUG; | |
451 | } | |
452 | ||
453 | if (!ctx->ftdic) { | |
454 | sr_err("la8: %s: ctx->ftdic was NULL", __func__); | |
455 | return SR_ERR_BUG; | |
456 | } | |
457 | ||
458 | ctx->divcount = samplerate_to_divcount(ctx->cur_samplerate); | |
459 | if (ctx->divcount == 0xff) { | |
460 | sr_err("la8: %s: invalid divcount/samplerate", __func__); | |
461 | return SR_ERR; | |
462 | } | |
463 | ||
464 | sr_dbg("la8: Starting acquisition."); | |
465 | ||
466 | /* Fill acquisition parameters into buf[]. */ | |
467 | buf[0] = ctx->divcount; | |
468 | buf[1] = 0xff; /* This byte must always be 0xff. */ | |
469 | buf[2] = ctx->trigger_pattern; | |
470 | buf[3] = ctx->trigger_mask; | |
471 | ||
472 | /* Start acquisition. */ | |
473 | bytes_written = la8_write(ctx, buf, 4); | |
474 | ||
475 | if (bytes_written < 0) { | |
476 | sr_err("la8: Acquisition failed to start."); | |
477 | return SR_ERR; | |
478 | } else if (bytes_written != 4) { | |
479 | sr_err("la8: Acquisition failed to start."); | |
480 | return SR_ERR; /* TODO: Other error and return code? */ | |
481 | } | |
482 | ||
483 | sr_dbg("la8: Acquisition started successfully."); | |
484 | ||
485 | ctx->session_dev_id = cb_data; | |
486 | ||
487 | /* Send header packet to the session bus. */ | |
488 | sr_dbg("la8: Sending SR_DF_HEADER."); | |
489 | packet.type = SR_DF_HEADER; | |
490 | packet.payload = &header; | |
491 | header.feed_version = 1; | |
492 | gettimeofday(&header.starttime, NULL); | |
493 | sr_session_send(ctx->session_dev_id, &packet); | |
494 | ||
495 | /* Send metadata about the SR_DF_LOGIC packets to come. */ | |
496 | packet.type = SR_DF_META_LOGIC; | |
497 | packet.payload = &meta; | |
498 | meta.samplerate = ctx->cur_samplerate; | |
499 | meta.num_probes = NUM_PROBES; | |
500 | sr_session_send(ctx->session_dev_id, &packet); | |
501 | ||
502 | /* Time when we should be done (for detecting trigger timeouts). */ | |
503 | ctx->done = (ctx->divcount + 1) * 0.08388608 + time(NULL) | |
504 | + ctx->trigger_timeout; | |
505 | ctx->block_counter = 0; | |
506 | ctx->trigger_found = 0; | |
507 | ||
508 | /* Hook up a dummy handler to receive data from the LA8. */ | |
509 | sr_source_add(-1, G_IO_IN, 0, receive_data, sdi); | |
510 | ||
511 | return SR_OK; | |
512 | } | |
513 | ||
514 | static int hw_dev_acquisition_stop(int dev_index, void *cb_data) | |
515 | { | |
516 | struct sr_dev_inst *sdi; | |
517 | struct context *ctx; | |
518 | struct sr_datafeed_packet packet; | |
519 | ||
520 | sr_dbg("la8: Stopping acquisition."); | |
521 | ||
765ef2f7 | 522 | if (!(sdi = sr_dev_inst_get(cdi->instances, dev_index))) { |
b908f067 UH |
523 | sr_err("la8: %s: sdi was NULL", __func__); |
524 | return SR_ERR_BUG; | |
525 | } | |
526 | ||
527 | if (!(ctx = sdi->priv)) { | |
528 | sr_err("la8: %s: sdi->priv was NULL", __func__); | |
529 | return SR_ERR_BUG; | |
530 | } | |
531 | ||
532 | /* Send end packet to the session bus. */ | |
533 | sr_dbg("la8: Sending SR_DF_END."); | |
534 | packet.type = SR_DF_END; | |
535 | sr_session_send(cb_data, &packet); | |
536 | ||
537 | return SR_OK; | |
538 | } | |
539 | ||
540 | SR_PRIV struct sr_dev_driver chronovu_la8_driver_info = { | |
541 | .name = "chronovu-la8", | |
542 | .longname = "ChronoVu LA8", | |
543 | .api_version = 1, | |
544 | .init = hw_init, | |
545 | .cleanup = hw_cleanup, | |
61136ea6 | 546 | .scan = hw_scan, |
b908f067 UH |
547 | .dev_open = hw_dev_open, |
548 | .dev_close = hw_dev_close, | |
6a2761fd | 549 | .info_get = hw_info_get, |
b908f067 | 550 | .dev_status_get = hw_dev_status_get, |
b908f067 UH |
551 | .dev_config_set = hw_dev_config_set, |
552 | .dev_acquisition_start = hw_dev_acquisition_start, | |
553 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
765ef2f7 | 554 | .instances = NULL, |
b908f067 | 555 | }; |