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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" | |
45e080b6 | 26 | #include "protocol.h" |
b908f067 | 27 | |
765ef2f7 | 28 | SR_PRIV struct sr_dev_driver chronovu_la8_driver_info; |
f3a35908 | 29 | static struct sr_dev_driver *di = &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. */ |
69b07d14 | 41 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); |
b908f067 | 42 | |
811deee4 | 43 | static int clear_instances(void) |
c4f3ed4b BV |
44 | { |
45 | GSList *l; | |
46 | struct sr_dev_inst *sdi; | |
1644fb24 BV |
47 | struct drv_context *drvc; |
48 | struct dev_context *devc; | |
49 | ||
f3a35908 | 50 | drvc = di->priv; |
c4f3ed4b BV |
51 | |
52 | /* Properly close all devices. */ | |
1644fb24 | 53 | for (l = drvc->instances; l; l = l->next) { |
c4f3ed4b BV |
54 | if (!(sdi = l->data)) { |
55 | /* Log error, but continue cleaning up the rest. */ | |
f3a35908 | 56 | sr_err("%s: sdi was NULL, continuing.", __func__); |
c4f3ed4b BV |
57 | continue; |
58 | } | |
59 | if (sdi->priv) { | |
1644fb24 BV |
60 | devc = sdi->priv; |
61 | ftdi_free(devc->ftdic); | |
c4f3ed4b BV |
62 | } |
63 | sr_dev_inst_free(sdi); | |
64 | } | |
1644fb24 BV |
65 | g_slist_free(drvc->instances); |
66 | drvc->instances = NULL; | |
c4f3ed4b | 67 | |
811deee4 | 68 | return SR_OK; |
c4f3ed4b BV |
69 | } |
70 | ||
34f06b90 | 71 | static int hw_init(struct sr_context *sr_ctx) |
61136ea6 | 72 | { |
1644fb24 | 73 | struct drv_context *drvc; |
61136ea6 | 74 | |
1644fb24 | 75 | if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { |
f3a35908 UH |
76 | sr_err("Driver context malloc failed."); |
77 | return SR_ERR_MALLOC; | |
1644fb24 | 78 | } |
f3a35908 | 79 | |
1ebe4b4e | 80 | drvc->sr_ctx = sr_ctx; |
f3a35908 | 81 | di->priv = drvc; |
61136ea6 BV |
82 | |
83 | return SR_OK; | |
84 | } | |
85 | ||
c4f3ed4b | 86 | static GSList *hw_scan(GSList *options) |
b908f067 | 87 | { |
b908f067 | 88 | struct sr_dev_inst *sdi; |
87ca93c5 | 89 | struct sr_probe *probe; |
1644fb24 BV |
90 | struct drv_context *drvc; |
91 | struct dev_context *devc; | |
c4f3ed4b | 92 | GSList *devices; |
9c4311c5 BV |
93 | unsigned int i; |
94 | int ret; | |
c4f3ed4b BV |
95 | |
96 | (void)options; | |
f3a35908 UH |
97 | |
98 | drvc = di->priv; | |
4b97c74e | 99 | |
c4f3ed4b | 100 | devices = NULL; |
b908f067 | 101 | |
1644fb24 BV |
102 | /* Allocate memory for our private device context. */ |
103 | if (!(devc = g_try_malloc(sizeof(struct dev_context)))) { | |
f3a35908 | 104 | sr_err("Device context malloc failed."); |
b908f067 UH |
105 | goto err_free_nothing; |
106 | } | |
107 | ||
108 | /* Set some sane defaults. */ | |
1644fb24 BV |
109 | devc->ftdic = NULL; |
110 | devc->cur_samplerate = SR_MHZ(100); /* 100MHz == max. samplerate */ | |
111 | devc->limit_msec = 0; | |
112 | devc->limit_samples = 0; | |
113 | devc->session_dev_id = NULL; | |
114 | memset(devc->mangled_buf, 0, BS); | |
115 | devc->final_buf = NULL; | |
116 | devc->trigger_pattern = 0x00; /* Value irrelevant, see trigger_mask. */ | |
117 | devc->trigger_mask = 0x00; /* All probes are "don't care". */ | |
118 | devc->trigger_timeout = 10; /* Default to 10s trigger timeout. */ | |
119 | devc->trigger_found = 0; | |
120 | devc->done = 0; | |
121 | devc->block_counter = 0; | |
122 | devc->divcount = 0; /* 10ns sample period == 100MHz samplerate */ | |
123 | devc->usb_pid = 0; | |
b908f067 UH |
124 | |
125 | /* Allocate memory where we'll store the de-mangled data. */ | |
1644fb24 | 126 | if (!(devc->final_buf = g_try_malloc(SDRAM_SIZE))) { |
f3a35908 | 127 | sr_err("final_buf malloc failed."); |
1644fb24 | 128 | goto err_free_devc; |
b908f067 UH |
129 | } |
130 | ||
131 | /* Allocate memory for the FTDI context (ftdic) and initialize it. */ | |
1644fb24 | 132 | if (!(devc->ftdic = ftdi_new())) { |
f3a35908 | 133 | sr_err("%s: ftdi_new failed.", __func__); |
b908f067 UH |
134 | goto err_free_final_buf; |
135 | } | |
136 | ||
137 | /* Check for the device and temporarily open it. */ | |
74e5f12d | 138 | for (i = 0; i < ARRAY_SIZE(usb_pids); i++) { |
f3a35908 | 139 | sr_dbg("Probing for VID/PID %04x:%04x.", USB_VENDOR_ID, |
74e5f12d | 140 | usb_pids[i]); |
1644fb24 | 141 | ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, |
74e5f12d UH |
142 | usb_pids[i], USB_DESCRIPTION, NULL); |
143 | if (ret == 0) { | |
f3a35908 | 144 | sr_dbg("Found LA8 device (%04x:%04x).", |
74e5f12d | 145 | USB_VENDOR_ID, usb_pids[i]); |
1644fb24 | 146 | devc->usb_pid = usb_pids[i]; |
74e5f12d | 147 | } |
b908f067 | 148 | } |
74e5f12d | 149 | |
1644fb24 | 150 | if (devc->usb_pid == 0) |
74e5f12d | 151 | goto err_free_ftdic; |
b908f067 UH |
152 | |
153 | /* Register the device with libsigrok. */ | |
154 | sdi = sr_dev_inst_new(0, SR_ST_INITIALIZING, | |
155 | USB_VENDOR_NAME, USB_MODEL_NAME, USB_MODEL_VERSION); | |
156 | if (!sdi) { | |
f3a35908 | 157 | sr_err("%s: sr_dev_inst_new failed.", __func__); |
b908f067 UH |
158 | goto err_close_ftdic; |
159 | } | |
f3a35908 | 160 | sdi->driver = di; |
1644fb24 | 161 | sdi->priv = devc; |
b908f067 | 162 | |
87ca93c5 | 163 | for (i = 0; probe_names[i]; i++) { |
de6e0eca | 164 | if (!(probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE, |
f3a35908 | 165 | probe_names[i]))) |
87ca93c5 BV |
166 | return NULL; |
167 | sdi->probes = g_slist_append(sdi->probes, probe); | |
168 | } | |
169 | ||
c4f3ed4b | 170 | devices = g_slist_append(devices, sdi); |
1644fb24 | 171 | drvc->instances = g_slist_append(drvc->instances, sdi); |
b908f067 | 172 | |
b908f067 | 173 | /* Close device. We'll reopen it again when we need it. */ |
1644fb24 | 174 | (void) la8_close(devc); /* Log, but ignore errors. */ |
b908f067 | 175 | |
c4f3ed4b | 176 | return devices; |
b908f067 UH |
177 | |
178 | err_close_ftdic: | |
1644fb24 | 179 | (void) la8_close(devc); /* Log, but ignore errors. */ |
b908f067 | 180 | err_free_ftdic: |
4f9bf9a2 | 181 | ftdi_free(devc->ftdic); /* NOT free() or g_free()! */ |
b908f067 | 182 | err_free_final_buf: |
1644fb24 BV |
183 | g_free(devc->final_buf); |
184 | err_free_devc: | |
185 | g_free(devc); | |
b908f067 UH |
186 | err_free_nothing: |
187 | ||
c4f3ed4b | 188 | return NULL; |
b908f067 UH |
189 | } |
190 | ||
811deee4 BV |
191 | static GSList *hw_dev_list(void) |
192 | { | |
193 | struct drv_context *drvc; | |
194 | ||
f3a35908 | 195 | drvc = di->priv; |
811deee4 BV |
196 | |
197 | return drvc->instances; | |
198 | } | |
199 | ||
25a0f108 | 200 | static int hw_dev_open(struct sr_dev_inst *sdi) |
b908f067 | 201 | { |
1644fb24 | 202 | struct dev_context *devc; |
25a0f108 | 203 | int ret; |
b908f067 | 204 | |
1644fb24 | 205 | if (!(devc = sdi->priv)) { |
f3a35908 | 206 | sr_err("%s: sdi->priv was NULL.", __func__); |
b908f067 UH |
207 | return SR_ERR_BUG; |
208 | } | |
209 | ||
f3a35908 | 210 | sr_dbg("Opening LA8 device (%04x:%04x).", USB_VENDOR_ID, |
1644fb24 | 211 | devc->usb_pid); |
b908f067 UH |
212 | |
213 | /* Open the device. */ | |
1644fb24 BV |
214 | if ((ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, |
215 | devc->usb_pid, USB_DESCRIPTION, NULL)) < 0) { | |
f3a35908 | 216 | sr_err("%s: ftdi_usb_open_desc: (%d) %s", |
1644fb24 BV |
217 | __func__, ret, ftdi_get_error_string(devc->ftdic)); |
218 | (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */ | |
b908f067 UH |
219 | return SR_ERR; |
220 | } | |
f3a35908 | 221 | sr_dbg("Device opened successfully."); |
b908f067 UH |
222 | |
223 | /* Purge RX/TX buffers in the FTDI chip. */ | |
1644fb24 | 224 | if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) { |
f3a35908 | 225 | sr_err("%s: ftdi_usb_purge_buffers: (%d) %s", |
1644fb24 BV |
226 | __func__, ret, ftdi_get_error_string(devc->ftdic)); |
227 | (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */ | |
b908f067 UH |
228 | goto err_dev_open_close_ftdic; |
229 | } | |
f3a35908 | 230 | sr_dbg("FTDI buffers purged successfully."); |
b908f067 UH |
231 | |
232 | /* Enable flow control in the FTDI chip. */ | |
1644fb24 | 233 | if ((ret = ftdi_setflowctrl(devc->ftdic, SIO_RTS_CTS_HS)) < 0) { |
f3a35908 | 234 | sr_err("%s: ftdi_setflowcontrol: (%d) %s", |
1644fb24 BV |
235 | __func__, ret, ftdi_get_error_string(devc->ftdic)); |
236 | (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */ | |
b908f067 UH |
237 | goto err_dev_open_close_ftdic; |
238 | } | |
f3a35908 | 239 | sr_dbg("FTDI flow control enabled successfully."); |
b908f067 UH |
240 | |
241 | /* Wait 100ms. */ | |
242 | g_usleep(100 * 1000); | |
243 | ||
244 | sdi->status = SR_ST_ACTIVE; | |
245 | ||
246 | return SR_OK; | |
247 | ||
248 | err_dev_open_close_ftdic: | |
1644fb24 | 249 | (void) la8_close(devc); /* Log, but ignore errors. */ |
b908f067 UH |
250 | return SR_ERR; |
251 | } | |
252 | ||
25a0f108 | 253 | static int hw_dev_close(struct sr_dev_inst *sdi) |
b908f067 | 254 | { |
1644fb24 | 255 | struct dev_context *devc; |
b908f067 | 256 | |
1644fb24 | 257 | if (!(devc = sdi->priv)) { |
f3a35908 | 258 | sr_err("%s: sdi->priv was NULL.", __func__); |
b908f067 UH |
259 | return SR_ERR_BUG; |
260 | } | |
261 | ||
f3a35908 | 262 | sr_dbg("Closing device."); |
b908f067 UH |
263 | |
264 | if (sdi->status == SR_ST_ACTIVE) { | |
f3a35908 | 265 | sr_dbg("Status ACTIVE, closing device."); |
1644fb24 | 266 | (void) la8_close_usb_reset_sequencer(devc); /* Ignore errors. */ |
b908f067 | 267 | } else { |
f3a35908 | 268 | sr_spew("Status not ACTIVE, nothing to do."); |
b908f067 UH |
269 | } |
270 | ||
271 | sdi->status = SR_ST_INACTIVE; | |
272 | ||
f3a35908 | 273 | sr_dbg("Freeing sample buffer."); |
1644fb24 | 274 | g_free(devc->final_buf); |
b908f067 UH |
275 | |
276 | return SR_OK; | |
277 | } | |
278 | ||
279 | static int hw_cleanup(void) | |
280 | { | |
33e8a3c5 BV |
281 | if (!di->priv) |
282 | /* Can get called on an unused driver, doesn't matter. */ | |
283 | return SR_OK; | |
cf1ebd54 | 284 | |
c4f3ed4b | 285 | clear_instances(); |
b908f067 | 286 | |
c4f3ed4b | 287 | return SR_OK; |
b908f067 UH |
288 | } |
289 | ||
035a1078 | 290 | static int config_get(int id, const void **data, const struct sr_dev_inst *sdi) |
b908f067 | 291 | { |
1644fb24 | 292 | struct dev_context *devc; |
b908f067 | 293 | |
035a1078 | 294 | switch (id) { |
123e1313 | 295 | case SR_CONF_SAMPLERATE: |
6a2761fd | 296 | if (sdi) { |
1644fb24 BV |
297 | devc = sdi->priv; |
298 | *data = &devc->cur_samplerate; | |
f3a35908 | 299 | sr_spew("%s: Returning samplerate: %" PRIu64 "Hz.", |
1644fb24 | 300 | __func__, devc->cur_samplerate); |
6a2761fd BV |
301 | } else |
302 | return SR_ERR; | |
b908f067 | 303 | break; |
cfe8a84d BV |
304 | default: |
305 | return SR_ERR_ARG; | |
b908f067 UH |
306 | } |
307 | ||
6a2761fd | 308 | return SR_OK; |
b908f067 UH |
309 | } |
310 | ||
035a1078 | 311 | static int config_set(int id, const void *value, const struct sr_dev_inst *sdi) |
b908f067 | 312 | { |
1644fb24 | 313 | struct dev_context *devc; |
b908f067 | 314 | |
1644fb24 | 315 | if (!(devc = sdi->priv)) { |
f3a35908 | 316 | sr_err("%s: sdi->priv was NULL.", __func__); |
b908f067 UH |
317 | return SR_ERR_BUG; |
318 | } | |
319 | ||
035a1078 | 320 | switch (id) { |
1953564a | 321 | case SR_CONF_SAMPLERATE: |
b908f067 | 322 | if (set_samplerate(sdi, *(const uint64_t *)value) == SR_ERR) { |
f3a35908 | 323 | sr_err("%s: setting samplerate failed.", __func__); |
b908f067 UH |
324 | return SR_ERR; |
325 | } | |
f3a35908 | 326 | sr_dbg("SAMPLERATE = %" PRIu64, devc->cur_samplerate); |
b908f067 | 327 | break; |
1953564a | 328 | case SR_CONF_LIMIT_MSEC: |
b908f067 | 329 | if (*(const uint64_t *)value == 0) { |
f3a35908 | 330 | sr_err("%s: LIMIT_MSEC can't be 0.", __func__); |
b908f067 UH |
331 | return SR_ERR; |
332 | } | |
1644fb24 | 333 | devc->limit_msec = *(const uint64_t *)value; |
f3a35908 | 334 | sr_dbg("LIMIT_MSEC = %" PRIu64, devc->limit_msec); |
b908f067 | 335 | break; |
1953564a | 336 | case SR_CONF_LIMIT_SAMPLES: |
b908f067 | 337 | if (*(const uint64_t *)value < MIN_NUM_SAMPLES) { |
f3a35908 | 338 | sr_err("%s: LIMIT_SAMPLES too small.", __func__); |
b908f067 UH |
339 | return SR_ERR; |
340 | } | |
1644fb24 | 341 | devc->limit_samples = *(const uint64_t *)value; |
f3a35908 | 342 | sr_dbg("LIMIT_SAMPLES = %" PRIu64, devc->limit_samples); |
b908f067 UH |
343 | break; |
344 | default: | |
345 | /* Unknown capability, return SR_ERR. */ | |
035a1078 | 346 | sr_err("%s: Unknown capability: %d.", __func__, id); |
b908f067 UH |
347 | return SR_ERR; |
348 | break; | |
349 | } | |
350 | ||
351 | return SR_OK; | |
352 | } | |
353 | ||
a1c743fc BV |
354 | static int config_list(int key, const void **data, const struct sr_dev_inst *sdi) |
355 | { | |
356 | ||
357 | (void)sdi; | |
358 | ||
359 | switch (key) { | |
9a6517d1 BV |
360 | case SR_CONF_DEVICE_OPTIONS: |
361 | *data = hwcaps; | |
362 | break; | |
a1c743fc BV |
363 | case SR_CONF_SAMPLERATE: |
364 | fill_supported_samplerates_if_needed(); | |
365 | *data = &samplerates; | |
366 | break; | |
c50277a6 BV |
367 | case SR_CONF_TRIGGER_TYPE: |
368 | *data = (char *)TRIGGER_TYPE; | |
369 | break; | |
a1c743fc BV |
370 | default: |
371 | return SR_ERR_ARG; | |
372 | } | |
373 | ||
374 | return SR_OK; | |
375 | } | |
376 | ||
b908f067 UH |
377 | static int receive_data(int fd, int revents, void *cb_data) |
378 | { | |
379 | int i, ret; | |
380 | struct sr_dev_inst *sdi; | |
1644fb24 | 381 | struct dev_context *devc; |
b908f067 | 382 | |
b908f067 UH |
383 | (void)fd; |
384 | (void)revents; | |
385 | ||
386 | if (!(sdi = cb_data)) { | |
f3a35908 | 387 | sr_err("%s: cb_data was NULL.", __func__); |
b908f067 UH |
388 | return FALSE; |
389 | } | |
390 | ||
1644fb24 | 391 | if (!(devc = sdi->priv)) { |
f3a35908 | 392 | sr_err("%s: sdi->priv was NULL.", __func__); |
b908f067 UH |
393 | return FALSE; |
394 | } | |
395 | ||
1644fb24 | 396 | if (!devc->ftdic) { |
f3a35908 | 397 | sr_err("%s: devc->ftdic was NULL.", __func__); |
b908f067 UH |
398 | return FALSE; |
399 | } | |
400 | ||
401 | /* Get one block of data. */ | |
1644fb24 | 402 | if ((ret = la8_read_block(devc)) < 0) { |
f3a35908 | 403 | sr_err("%s: la8_read_block error: %d.", __func__, ret); |
3ffb6964 | 404 | hw_dev_acquisition_stop(sdi, sdi); |
b908f067 UH |
405 | return FALSE; |
406 | } | |
407 | ||
408 | /* We need to get exactly NUM_BLOCKS blocks (i.e. 8MB) of data. */ | |
1644fb24 BV |
409 | if (devc->block_counter != (NUM_BLOCKS - 1)) { |
410 | devc->block_counter++; | |
b908f067 UH |
411 | return TRUE; |
412 | } | |
413 | ||
f3a35908 | 414 | sr_dbg("Sampling finished, sending data to session bus now."); |
b908f067 UH |
415 | |
416 | /* All data was received and demangled, send it to the session bus. */ | |
417 | for (i = 0; i < NUM_BLOCKS; i++) | |
1644fb24 | 418 | send_block_to_session_bus(devc, i); |
b908f067 | 419 | |
3ffb6964 | 420 | hw_dev_acquisition_stop(sdi, sdi); |
b908f067 | 421 | |
b908f067 UH |
422 | return TRUE; |
423 | } | |
424 | ||
3ffb6964 | 425 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
f3a35908 | 426 | void *cb_data) |
b908f067 | 427 | { |
1644fb24 | 428 | struct dev_context *devc; |
b908f067 UH |
429 | struct sr_datafeed_packet packet; |
430 | struct sr_datafeed_header header; | |
b908f067 UH |
431 | uint8_t buf[4]; |
432 | int bytes_written; | |
433 | ||
1644fb24 | 434 | if (!(devc = sdi->priv)) { |
f3a35908 | 435 | sr_err("%s: sdi->priv was NULL.", __func__); |
b908f067 UH |
436 | return SR_ERR_BUG; |
437 | } | |
438 | ||
1644fb24 | 439 | if (!devc->ftdic) { |
f3a35908 | 440 | sr_err("%s: devc->ftdic was NULL.", __func__); |
b908f067 UH |
441 | return SR_ERR_BUG; |
442 | } | |
443 | ||
1644fb24 BV |
444 | devc->divcount = samplerate_to_divcount(devc->cur_samplerate); |
445 | if (devc->divcount == 0xff) { | |
f3a35908 | 446 | sr_err("%s: Invalid divcount/samplerate.", __func__); |
b908f067 UH |
447 | return SR_ERR; |
448 | } | |
449 | ||
014359e3 | 450 | if (configure_probes(sdi) != SR_OK) { |
f3a35908 | 451 | sr_err("Failed to configure probes."); |
014359e3 BV |
452 | return SR_ERR; |
453 | } | |
454 | ||
f3a35908 | 455 | sr_dbg("Starting acquisition."); |
b908f067 UH |
456 | |
457 | /* Fill acquisition parameters into buf[]. */ | |
1644fb24 | 458 | buf[0] = devc->divcount; |
b908f067 | 459 | buf[1] = 0xff; /* This byte must always be 0xff. */ |
1644fb24 BV |
460 | buf[2] = devc->trigger_pattern; |
461 | buf[3] = devc->trigger_mask; | |
b908f067 UH |
462 | |
463 | /* Start acquisition. */ | |
1644fb24 | 464 | bytes_written = la8_write(devc, buf, 4); |
b908f067 UH |
465 | |
466 | if (bytes_written < 0) { | |
f3a35908 | 467 | sr_err("Acquisition failed to start: %d.", bytes_written); |
b908f067 UH |
468 | return SR_ERR; |
469 | } else if (bytes_written != 4) { | |
f3a35908 | 470 | sr_err("Acquisition failed to start: %d.", bytes_written); |
afc88319 | 471 | return SR_ERR; |
b908f067 UH |
472 | } |
473 | ||
f3a35908 | 474 | sr_dbg("Acquisition started successfully."); |
b908f067 | 475 | |
1644fb24 | 476 | devc->session_dev_id = cb_data; |
b908f067 UH |
477 | |
478 | /* Send header packet to the session bus. */ | |
f3a35908 | 479 | sr_dbg("Sending SR_DF_HEADER."); |
b908f067 UH |
480 | packet.type = SR_DF_HEADER; |
481 | packet.payload = &header; | |
482 | header.feed_version = 1; | |
483 | gettimeofday(&header.starttime, NULL); | |
1644fb24 | 484 | sr_session_send(devc->session_dev_id, &packet); |
b908f067 | 485 | |
b908f067 | 486 | /* Time when we should be done (for detecting trigger timeouts). */ |
1644fb24 BV |
487 | devc->done = (devc->divcount + 1) * 0.08388608 + time(NULL) |
488 | + devc->trigger_timeout; | |
489 | devc->block_counter = 0; | |
490 | devc->trigger_found = 0; | |
b908f067 UH |
491 | |
492 | /* Hook up a dummy handler to receive data from the LA8. */ | |
3ffb6964 | 493 | sr_source_add(-1, G_IO_IN, 0, receive_data, (void *)sdi); |
b908f067 UH |
494 | |
495 | return SR_OK; | |
496 | } | |
497 | ||
69b07d14 | 498 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
b908f067 | 499 | { |
b908f067 UH |
500 | struct sr_datafeed_packet packet; |
501 | ||
afc88319 | 502 | (void)sdi; |
b908f067 | 503 | |
f3a35908 | 504 | sr_dbg("Stopping acquisition."); |
7021f985 BV |
505 | sr_source_remove(-1); |
506 | ||
b908f067 | 507 | /* Send end packet to the session bus. */ |
f3a35908 | 508 | sr_dbg("Sending SR_DF_END."); |
b908f067 UH |
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, |
811deee4 BV |
522 | .dev_list = hw_dev_list, |
523 | .dev_clear = clear_instances, | |
035a1078 BV |
524 | .config_get = config_get, |
525 | .config_set = config_set, | |
a1c743fc | 526 | .config_list = config_list, |
b908f067 UH |
527 | .dev_open = hw_dev_open, |
528 | .dev_close = hw_dev_close, | |
b908f067 UH |
529 | .dev_acquisition_start = hw_dev_acquisition_start, |
530 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
1644fb24 | 531 | .priv = NULL, |
b908f067 | 532 | }; |