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Commit | Line | Data |
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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 | 40 | /* Function prototypes. */ |
3ffb6964 BV |
41 | static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi, |
42 | void *cb_data); | |
b908f067 | 43 | |
c4f3ed4b BV |
44 | static void clear_instances(void) |
45 | { | |
46 | GSList *l; | |
47 | struct sr_dev_inst *sdi; | |
1644fb24 BV |
48 | struct drv_context *drvc; |
49 | struct dev_context *devc; | |
50 | ||
51 | drvc = cdi->priv; | |
c4f3ed4b BV |
52 | |
53 | /* Properly close all devices. */ | |
1644fb24 | 54 | for (l = drvc->instances; l; l = l->next) { |
c4f3ed4b BV |
55 | if (!(sdi = l->data)) { |
56 | /* Log error, but continue cleaning up the rest. */ | |
57 | sr_err("la8: %s: sdi was NULL, continuing", __func__); | |
58 | continue; | |
59 | } | |
60 | if (sdi->priv) { | |
1644fb24 BV |
61 | devc = sdi->priv; |
62 | ftdi_free(devc->ftdic); | |
c4f3ed4b BV |
63 | } |
64 | sr_dev_inst_free(sdi); | |
65 | } | |
1644fb24 BV |
66 | g_slist_free(drvc->instances); |
67 | drvc->instances = NULL; | |
c4f3ed4b BV |
68 | |
69 | } | |
70 | ||
40dda2c3 | 71 | static int hw_init(void) |
61136ea6 | 72 | { |
1644fb24 | 73 | struct drv_context *drvc; |
61136ea6 | 74 | |
1644fb24 BV |
75 | if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { |
76 | sr_err("chronovu-la8: driver context malloc failed."); | |
77 | return SR_ERR; | |
78 | } | |
79 | cdi->priv = drvc; | |
61136ea6 BV |
80 | |
81 | return SR_OK; | |
82 | } | |
83 | ||
c4f3ed4b | 84 | static GSList *hw_scan(GSList *options) |
b908f067 | 85 | { |
b908f067 | 86 | struct sr_dev_inst *sdi; |
87ca93c5 | 87 | struct sr_probe *probe; |
1644fb24 BV |
88 | struct drv_context *drvc; |
89 | struct dev_context *devc; | |
c4f3ed4b | 90 | GSList *devices; |
9c4311c5 BV |
91 | unsigned int i; |
92 | int ret; | |
c4f3ed4b BV |
93 | |
94 | (void)options; | |
1644fb24 | 95 | drvc = cdi->priv; |
c4f3ed4b | 96 | devices = NULL; |
b908f067 | 97 | |
1644fb24 BV |
98 | /* Allocate memory for our private device context. */ |
99 | if (!(devc = g_try_malloc(sizeof(struct dev_context)))) { | |
b908f067 UH |
100 | sr_err("la8: %s: struct context malloc failed", __func__); |
101 | goto err_free_nothing; | |
102 | } | |
103 | ||
104 | /* Set some sane defaults. */ | |
1644fb24 BV |
105 | devc->ftdic = NULL; |
106 | devc->cur_samplerate = SR_MHZ(100); /* 100MHz == max. samplerate */ | |
107 | devc->limit_msec = 0; | |
108 | devc->limit_samples = 0; | |
109 | devc->session_dev_id = NULL; | |
110 | memset(devc->mangled_buf, 0, BS); | |
111 | devc->final_buf = NULL; | |
112 | devc->trigger_pattern = 0x00; /* Value irrelevant, see trigger_mask. */ | |
113 | devc->trigger_mask = 0x00; /* All probes are "don't care". */ | |
114 | devc->trigger_timeout = 10; /* Default to 10s trigger timeout. */ | |
115 | devc->trigger_found = 0; | |
116 | devc->done = 0; | |
117 | devc->block_counter = 0; | |
118 | devc->divcount = 0; /* 10ns sample period == 100MHz samplerate */ | |
119 | devc->usb_pid = 0; | |
b908f067 UH |
120 | |
121 | /* Allocate memory where we'll store the de-mangled data. */ | |
1644fb24 | 122 | if (!(devc->final_buf = g_try_malloc(SDRAM_SIZE))) { |
b908f067 | 123 | sr_err("la8: %s: final_buf malloc failed", __func__); |
1644fb24 | 124 | goto err_free_devc; |
b908f067 UH |
125 | } |
126 | ||
127 | /* Allocate memory for the FTDI context (ftdic) and initialize it. */ | |
1644fb24 | 128 | if (!(devc->ftdic = ftdi_new())) { |
b908f067 UH |
129 | sr_err("la8: %s: ftdi_new failed", __func__); |
130 | goto err_free_final_buf; | |
131 | } | |
132 | ||
133 | /* Check for the device and temporarily open it. */ | |
74e5f12d UH |
134 | for (i = 0; i < ARRAY_SIZE(usb_pids); i++) { |
135 | sr_dbg("la8: Probing for VID/PID %04x:%04x.", USB_VENDOR_ID, | |
136 | usb_pids[i]); | |
1644fb24 | 137 | ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, |
74e5f12d UH |
138 | usb_pids[i], USB_DESCRIPTION, NULL); |
139 | if (ret == 0) { | |
140 | sr_dbg("la8: Found LA8 device (%04x:%04x).", | |
141 | USB_VENDOR_ID, usb_pids[i]); | |
1644fb24 | 142 | devc->usb_pid = usb_pids[i]; |
74e5f12d | 143 | } |
b908f067 | 144 | } |
74e5f12d | 145 | |
1644fb24 | 146 | if (devc->usb_pid == 0) |
74e5f12d | 147 | goto err_free_ftdic; |
b908f067 UH |
148 | |
149 | /* Register the device with libsigrok. */ | |
150 | sdi = sr_dev_inst_new(0, SR_ST_INITIALIZING, | |
151 | USB_VENDOR_NAME, USB_MODEL_NAME, USB_MODEL_VERSION); | |
152 | if (!sdi) { | |
153 | sr_err("la8: %s: sr_dev_inst_new failed", __func__); | |
154 | goto err_close_ftdic; | |
155 | } | |
cfe8a84d | 156 | sdi->driver = cdi; |
1644fb24 | 157 | sdi->priv = devc; |
b908f067 | 158 | |
87ca93c5 BV |
159 | for (i = 0; probe_names[i]; i++) { |
160 | if (!(probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, | |
161 | probe_names[i]))) | |
162 | return NULL; | |
163 | sdi->probes = g_slist_append(sdi->probes, probe); | |
164 | } | |
165 | ||
c4f3ed4b | 166 | devices = g_slist_append(devices, sdi); |
1644fb24 | 167 | drvc->instances = g_slist_append(drvc->instances, sdi); |
b908f067 UH |
168 | |
169 | sr_spew("la8: Device init successful."); | |
170 | ||
171 | /* Close device. We'll reopen it again when we need it. */ | |
1644fb24 | 172 | (void) la8_close(devc); /* Log, but ignore errors. */ |
b908f067 | 173 | |
c4f3ed4b | 174 | return devices; |
b908f067 UH |
175 | |
176 | err_close_ftdic: | |
1644fb24 | 177 | (void) la8_close(devc); /* Log, but ignore errors. */ |
b908f067 | 178 | err_free_ftdic: |
1644fb24 | 179 | free(devc->ftdic); /* NOT g_free()! */ |
b908f067 | 180 | err_free_final_buf: |
1644fb24 BV |
181 | g_free(devc->final_buf); |
182 | err_free_devc: | |
183 | g_free(devc); | |
b908f067 UH |
184 | err_free_nothing: |
185 | ||
c4f3ed4b | 186 | return NULL; |
b908f067 UH |
187 | } |
188 | ||
25a0f108 | 189 | static int hw_dev_open(struct sr_dev_inst *sdi) |
b908f067 | 190 | { |
1644fb24 | 191 | struct dev_context *devc; |
25a0f108 | 192 | int ret; |
b908f067 | 193 | |
1644fb24 | 194 | if (!(devc = sdi->priv)) { |
b908f067 UH |
195 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
196 | return SR_ERR_BUG; | |
197 | } | |
198 | ||
199 | sr_dbg("la8: Opening LA8 device (%04x:%04x).", USB_VENDOR_ID, | |
1644fb24 | 200 | devc->usb_pid); |
b908f067 UH |
201 | |
202 | /* Open the device. */ | |
1644fb24 BV |
203 | if ((ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, |
204 | devc->usb_pid, USB_DESCRIPTION, NULL)) < 0) { | |
b908f067 | 205 | sr_err("la8: %s: ftdi_usb_open_desc: (%d) %s", |
1644fb24 BV |
206 | __func__, ret, ftdi_get_error_string(devc->ftdic)); |
207 | (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */ | |
b908f067 UH |
208 | return SR_ERR; |
209 | } | |
210 | sr_dbg("la8: Device opened successfully."); | |
211 | ||
212 | /* Purge RX/TX buffers in the FTDI chip. */ | |
1644fb24 | 213 | if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) { |
b908f067 | 214 | sr_err("la8: %s: ftdi_usb_purge_buffers: (%d) %s", |
1644fb24 BV |
215 | __func__, ret, ftdi_get_error_string(devc->ftdic)); |
216 | (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */ | |
b908f067 UH |
217 | goto err_dev_open_close_ftdic; |
218 | } | |
219 | sr_dbg("la8: FTDI buffers purged successfully."); | |
220 | ||
221 | /* Enable flow control in the FTDI chip. */ | |
1644fb24 | 222 | if ((ret = ftdi_setflowctrl(devc->ftdic, SIO_RTS_CTS_HS)) < 0) { |
b908f067 | 223 | sr_err("la8: %s: ftdi_setflowcontrol: (%d) %s", |
1644fb24 BV |
224 | __func__, ret, ftdi_get_error_string(devc->ftdic)); |
225 | (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */ | |
b908f067 UH |
226 | goto err_dev_open_close_ftdic; |
227 | } | |
228 | sr_dbg("la8: FTDI flow control enabled successfully."); | |
229 | ||
230 | /* Wait 100ms. */ | |
231 | g_usleep(100 * 1000); | |
232 | ||
233 | sdi->status = SR_ST_ACTIVE; | |
234 | ||
235 | return SR_OK; | |
236 | ||
237 | err_dev_open_close_ftdic: | |
1644fb24 | 238 | (void) la8_close(devc); /* Log, but ignore errors. */ |
b908f067 UH |
239 | return SR_ERR; |
240 | } | |
241 | ||
25a0f108 | 242 | static int hw_dev_close(struct sr_dev_inst *sdi) |
b908f067 | 243 | { |
1644fb24 | 244 | struct dev_context *devc; |
b908f067 | 245 | |
1644fb24 | 246 | if (!(devc = sdi->priv)) { |
b908f067 UH |
247 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
248 | return SR_ERR_BUG; | |
249 | } | |
250 | ||
251 | sr_dbg("la8: Closing device."); | |
252 | ||
253 | if (sdi->status == SR_ST_ACTIVE) { | |
254 | sr_dbg("la8: Status ACTIVE, closing device."); | |
1644fb24 | 255 | (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */ |
b908f067 UH |
256 | } else { |
257 | sr_spew("la8: Status not ACTIVE, nothing to do."); | |
258 | } | |
259 | ||
260 | sdi->status = SR_ST_INACTIVE; | |
261 | ||
262 | sr_dbg("la8: Freeing sample buffer."); | |
1644fb24 | 263 | g_free(devc->final_buf); |
b908f067 UH |
264 | |
265 | return SR_OK; | |
266 | } | |
267 | ||
268 | static int hw_cleanup(void) | |
269 | { | |
b908f067 | 270 | |
cf1ebd54 BV |
271 | if (!cdi->priv) |
272 | return SR_OK; | |
273 | ||
c4f3ed4b | 274 | clear_instances(); |
b908f067 | 275 | |
c4f3ed4b | 276 | return SR_OK; |
b908f067 UH |
277 | } |
278 | ||
6a2761fd BV |
279 | static int hw_info_get(int info_id, const void **data, |
280 | const struct sr_dev_inst *sdi) | |
b908f067 | 281 | { |
1644fb24 | 282 | struct dev_context *devc; |
b908f067 | 283 | |
6a2761fd | 284 | switch (info_id) { |
7566601c BV |
285 | case SR_DI_HWCAPS: |
286 | *data = hwcaps; | |
287 | break; | |
b908f067 | 288 | case SR_DI_NUM_PROBES: |
6a2761fd | 289 | *data = GINT_TO_POINTER(NUM_PROBES); |
b908f067 UH |
290 | sr_spew("la8: %s: Returning number of probes: %d.", __func__, |
291 | NUM_PROBES); | |
292 | break; | |
293 | case SR_DI_PROBE_NAMES: | |
6a2761fd | 294 | *data = probe_names; |
b908f067 UH |
295 | sr_spew("la8: %s: Returning probenames.", __func__); |
296 | break; | |
297 | case SR_DI_SAMPLERATES: | |
298 | fill_supported_samplerates_if_needed(); | |
6a2761fd | 299 | *data = &samplerates; |
b908f067 UH |
300 | sr_spew("la8: %s: Returning samplerates.", __func__); |
301 | break; | |
302 | case SR_DI_TRIGGER_TYPES: | |
6a2761fd | 303 | *data = (char *)TRIGGER_TYPES; |
b908f067 UH |
304 | sr_spew("la8: %s: Returning trigger types: %s.", __func__, |
305 | TRIGGER_TYPES); | |
306 | break; | |
307 | case SR_DI_CUR_SAMPLERATE: | |
6a2761fd | 308 | if (sdi) { |
1644fb24 BV |
309 | devc = sdi->priv; |
310 | *data = &devc->cur_samplerate; | |
6a2761fd | 311 | sr_spew("la8: %s: Returning samplerate: %" PRIu64 "Hz.", |
1644fb24 | 312 | __func__, devc->cur_samplerate); |
6a2761fd BV |
313 | } else |
314 | return SR_ERR; | |
b908f067 | 315 | break; |
cfe8a84d BV |
316 | default: |
317 | return SR_ERR_ARG; | |
b908f067 UH |
318 | } |
319 | ||
6a2761fd | 320 | return SR_OK; |
b908f067 UH |
321 | } |
322 | ||
6f4b1868 BV |
323 | static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, |
324 | const void *value) | |
b908f067 | 325 | { |
1644fb24 | 326 | struct dev_context *devc; |
b908f067 | 327 | |
1644fb24 | 328 | if (!(devc = sdi->priv)) { |
b908f067 UH |
329 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
330 | return SR_ERR_BUG; | |
331 | } | |
332 | ||
b908f067 UH |
333 | switch (hwcap) { |
334 | case SR_HWCAP_SAMPLERATE: | |
335 | if (set_samplerate(sdi, *(const uint64_t *)value) == SR_ERR) { | |
336 | sr_err("la8: %s: setting samplerate failed.", __func__); | |
337 | return SR_ERR; | |
338 | } | |
1644fb24 | 339 | sr_dbg("la8: SAMPLERATE = %" PRIu64, devc->cur_samplerate); |
b908f067 | 340 | break; |
b908f067 UH |
341 | case SR_HWCAP_LIMIT_MSEC: |
342 | if (*(const uint64_t *)value == 0) { | |
343 | sr_err("la8: %s: LIMIT_MSEC can't be 0.", __func__); | |
344 | return SR_ERR; | |
345 | } | |
1644fb24 BV |
346 | devc->limit_msec = *(const uint64_t *)value; |
347 | sr_dbg("la8: LIMIT_MSEC = %" PRIu64, devc->limit_msec); | |
b908f067 UH |
348 | break; |
349 | case SR_HWCAP_LIMIT_SAMPLES: | |
350 | if (*(const uint64_t *)value < MIN_NUM_SAMPLES) { | |
351 | sr_err("la8: %s: LIMIT_SAMPLES too small.", __func__); | |
352 | return SR_ERR; | |
353 | } | |
1644fb24 BV |
354 | devc->limit_samples = *(const uint64_t *)value; |
355 | sr_dbg("la8: LIMIT_SAMPLES = %" PRIu64, devc->limit_samples); | |
b908f067 UH |
356 | break; |
357 | default: | |
358 | /* Unknown capability, return SR_ERR. */ | |
359 | sr_err("la8: %s: Unknown capability.", __func__); | |
360 | return SR_ERR; | |
361 | break; | |
362 | } | |
363 | ||
364 | return SR_OK; | |
365 | } | |
366 | ||
367 | static int receive_data(int fd, int revents, void *cb_data) | |
368 | { | |
369 | int i, ret; | |
370 | struct sr_dev_inst *sdi; | |
1644fb24 | 371 | struct dev_context *devc; |
b908f067 UH |
372 | |
373 | /* Avoid compiler errors. */ | |
374 | (void)fd; | |
375 | (void)revents; | |
376 | ||
377 | if (!(sdi = cb_data)) { | |
378 | sr_err("la8: %s: cb_data was NULL", __func__); | |
379 | return FALSE; | |
380 | } | |
381 | ||
1644fb24 | 382 | if (!(devc = sdi->priv)) { |
b908f067 UH |
383 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
384 | return FALSE; | |
385 | } | |
386 | ||
1644fb24 BV |
387 | if (!devc->ftdic) { |
388 | sr_err("la8: %s: devc->ftdic was NULL", __func__); | |
b908f067 UH |
389 | return FALSE; |
390 | } | |
391 | ||
392 | /* Get one block of data. */ | |
1644fb24 | 393 | if ((ret = la8_read_block(devc)) < 0) { |
b908f067 | 394 | sr_err("la8: %s: la8_read_block error: %d", __func__, ret); |
3ffb6964 | 395 | hw_dev_acquisition_stop(sdi, sdi); |
b908f067 UH |
396 | return FALSE; |
397 | } | |
398 | ||
399 | /* We need to get exactly NUM_BLOCKS blocks (i.e. 8MB) of data. */ | |
1644fb24 BV |
400 | if (devc->block_counter != (NUM_BLOCKS - 1)) { |
401 | devc->block_counter++; | |
b908f067 UH |
402 | return TRUE; |
403 | } | |
404 | ||
405 | sr_dbg("la8: Sampling finished, sending data to session bus now."); | |
406 | ||
407 | /* All data was received and demangled, send it to the session bus. */ | |
408 | for (i = 0; i < NUM_BLOCKS; i++) | |
1644fb24 | 409 | send_block_to_session_bus(devc, i); |
b908f067 | 410 | |
3ffb6964 | 411 | hw_dev_acquisition_stop(sdi, sdi); |
b908f067 | 412 | |
b908f067 UH |
413 | return TRUE; |
414 | } | |
415 | ||
3ffb6964 BV |
416 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
417 | void *cb_data) | |
b908f067 | 418 | { |
1644fb24 | 419 | struct dev_context *devc; |
b908f067 UH |
420 | struct sr_datafeed_packet packet; |
421 | struct sr_datafeed_header header; | |
422 | struct sr_datafeed_meta_logic meta; | |
423 | uint8_t buf[4]; | |
424 | int bytes_written; | |
425 | ||
1644fb24 | 426 | if (!(devc = sdi->priv)) { |
b908f067 UH |
427 | sr_err("la8: %s: sdi->priv was NULL", __func__); |
428 | return SR_ERR_BUG; | |
429 | } | |
430 | ||
1644fb24 BV |
431 | if (!devc->ftdic) { |
432 | sr_err("la8: %s: devc->ftdic was NULL", __func__); | |
b908f067 UH |
433 | return SR_ERR_BUG; |
434 | } | |
435 | ||
1644fb24 BV |
436 | devc->divcount = samplerate_to_divcount(devc->cur_samplerate); |
437 | if (devc->divcount == 0xff) { | |
b908f067 UH |
438 | sr_err("la8: %s: invalid divcount/samplerate", __func__); |
439 | return SR_ERR; | |
440 | } | |
441 | ||
014359e3 BV |
442 | if (configure_probes(sdi) != SR_OK) { |
443 | sr_err("chronovu-la8: failed to configured probes"); | |
444 | return SR_ERR; | |
445 | } | |
446 | ||
b908f067 UH |
447 | sr_dbg("la8: Starting acquisition."); |
448 | ||
449 | /* Fill acquisition parameters into buf[]. */ | |
1644fb24 | 450 | buf[0] = devc->divcount; |
b908f067 | 451 | buf[1] = 0xff; /* This byte must always be 0xff. */ |
1644fb24 BV |
452 | buf[2] = devc->trigger_pattern; |
453 | buf[3] = devc->trigger_mask; | |
b908f067 UH |
454 | |
455 | /* Start acquisition. */ | |
1644fb24 | 456 | bytes_written = la8_write(devc, buf, 4); |
b908f067 UH |
457 | |
458 | if (bytes_written < 0) { | |
459 | sr_err("la8: Acquisition failed to start."); | |
460 | return SR_ERR; | |
461 | } else if (bytes_written != 4) { | |
462 | sr_err("la8: Acquisition failed to start."); | |
afc88319 | 463 | return SR_ERR; |
b908f067 UH |
464 | } |
465 | ||
466 | sr_dbg("la8: Acquisition started successfully."); | |
467 | ||
1644fb24 | 468 | devc->session_dev_id = cb_data; |
b908f067 UH |
469 | |
470 | /* Send header packet to the session bus. */ | |
471 | sr_dbg("la8: Sending SR_DF_HEADER."); | |
472 | packet.type = SR_DF_HEADER; | |
473 | packet.payload = &header; | |
474 | header.feed_version = 1; | |
475 | gettimeofday(&header.starttime, NULL); | |
1644fb24 | 476 | sr_session_send(devc->session_dev_id, &packet); |
b908f067 UH |
477 | |
478 | /* Send metadata about the SR_DF_LOGIC packets to come. */ | |
479 | packet.type = SR_DF_META_LOGIC; | |
480 | packet.payload = &meta; | |
1644fb24 | 481 | meta.samplerate = devc->cur_samplerate; |
b908f067 | 482 | meta.num_probes = NUM_PROBES; |
1644fb24 | 483 | sr_session_send(devc->session_dev_id, &packet); |
b908f067 UH |
484 | |
485 | /* Time when we should be done (for detecting trigger timeouts). */ | |
1644fb24 BV |
486 | devc->done = (devc->divcount + 1) * 0.08388608 + time(NULL) |
487 | + devc->trigger_timeout; | |
488 | devc->block_counter = 0; | |
489 | devc->trigger_found = 0; | |
b908f067 UH |
490 | |
491 | /* Hook up a dummy handler to receive data from the LA8. */ | |
3ffb6964 | 492 | sr_source_add(-1, G_IO_IN, 0, receive_data, (void *)sdi); |
b908f067 UH |
493 | |
494 | return SR_OK; | |
495 | } | |
496 | ||
3ffb6964 BV |
497 | static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi, |
498 | void *cb_data) | |
b908f067 | 499 | { |
b908f067 UH |
500 | struct sr_datafeed_packet packet; |
501 | ||
afc88319 | 502 | (void)sdi; |
b908f067 | 503 | |
afc88319 | 504 | sr_dbg("la8: Stopping acquisition."); |
7021f985 BV |
505 | sr_source_remove(-1); |
506 | ||
b908f067 UH |
507 | /* Send end packet to the session bus. */ |
508 | sr_dbg("la8: Sending SR_DF_END."); | |
509 | packet.type = SR_DF_END; | |
510 | sr_session_send(cb_data, &packet); | |
511 | ||
512 | return SR_OK; | |
513 | } | |
514 | ||
515 | SR_PRIV struct sr_dev_driver chronovu_la8_driver_info = { | |
516 | .name = "chronovu-la8", | |
517 | .longname = "ChronoVu LA8", | |
518 | .api_version = 1, | |
519 | .init = hw_init, | |
520 | .cleanup = hw_cleanup, | |
61136ea6 | 521 | .scan = hw_scan, |
b908f067 UH |
522 | .dev_open = hw_dev_open, |
523 | .dev_close = hw_dev_close, | |
6a2761fd | 524 | .info_get = hw_info_get, |
b908f067 UH |
525 | .dev_config_set = hw_dev_config_set, |
526 | .dev_acquisition_start = hw_dev_acquisition_start, | |
527 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
1644fb24 | 528 | .priv = NULL, |
b908f067 | 529 | }; |