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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Marc Schink <sigrok-dev@marcschink.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 3 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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "protocol.h" | |
21 | ||
22 | static const int hwcaps[] = { | |
23 | SR_CONF_LOGIC_ANALYZER, | |
24 | SR_CONF_SAMPLERATE, | |
25 | SR_CONF_LIMIT_SAMPLES, | |
26 | SR_CONF_TRIGGER_TYPE, | |
27 | SR_CONF_CAPTURE_RATIO, | |
28 | SR_CONF_MAX_UNCOMPRESSED_SAMPLES, | |
29 | }; | |
30 | ||
31 | SR_PRIV const uint64_t sl2_samplerates[NUM_SAMPLERATES] = { | |
32 | SR_KHZ(1.25), | |
33 | SR_KHZ(10), | |
34 | SR_KHZ(50), | |
35 | SR_KHZ(100), | |
36 | SR_KHZ(250), | |
37 | SR_KHZ(500), | |
38 | SR_MHZ(1), | |
39 | SR_MHZ(2.5), | |
40 | SR_MHZ(5), | |
41 | SR_MHZ(10), | |
42 | SR_MHZ(20), | |
43 | }; | |
44 | ||
45 | static const char *probe_names[NUM_PROBES + 1] = { | |
46 | "0", "1", "2", "3", | |
47 | NULL, | |
48 | }; | |
49 | ||
50 | SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info; | |
51 | static struct sr_dev_driver *di = &ikalogic_scanalogic2_driver_info; | |
52 | ||
53 | static int init(struct sr_context *sr_ctx) | |
54 | { | |
55 | return std_init(sr_ctx, di, LOG_PREFIX); | |
56 | } | |
57 | ||
58 | static GSList *scan(GSList *options) | |
59 | { | |
60 | GSList *usb_devices, *devices, *l; | |
61 | struct drv_context *drvc; | |
62 | struct sr_dev_inst *sdi; | |
63 | struct sr_probe *probe; | |
64 | struct dev_context *devc; | |
65 | struct sr_usb_dev_inst *usb; | |
66 | struct device_info dev_info; | |
67 | int ret, device_index, i; | |
68 | char *fw_ver_str; | |
69 | ||
70 | (void)options; | |
71 | ||
72 | devices = NULL; | |
73 | drvc = di->priv; | |
74 | drvc->instances = NULL; | |
75 | device_index = 0; | |
76 | ||
77 | usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_VID_PID); | |
78 | ||
79 | if (usb_devices == NULL) | |
80 | return NULL; | |
81 | ||
82 | for (l = usb_devices; l; l = l->next) { | |
83 | usb = l->data; | |
84 | ||
85 | if ((ret = sl2_get_device_info(*usb, &dev_info)) < 0) { | |
86 | sr_warn("Failed to get device information: %d.", ret); | |
87 | sr_usb_dev_inst_free(usb); | |
88 | continue; | |
89 | } | |
90 | ||
91 | if (!(devc = g_try_malloc(sizeof(struct dev_context)))) { | |
92 | sr_err("Device instance malloc failed."); | |
93 | sr_usb_dev_inst_free(usb); | |
94 | continue; | |
95 | } | |
96 | ||
97 | if (!(devc->xfer_in = libusb_alloc_transfer(0))) { | |
98 | sr_err("Transfer malloc failed."); | |
99 | sr_usb_dev_inst_free(usb); | |
100 | g_free(devc); | |
101 | continue; | |
102 | } | |
103 | ||
104 | if (!(devc->xfer_out = libusb_alloc_transfer(0))) { | |
105 | sr_err("Transfer malloc failed."); | |
106 | sr_usb_dev_inst_free(usb); | |
107 | libusb_free_transfer(devc->xfer_in); | |
108 | g_free(devc); | |
109 | continue; | |
110 | } | |
111 | ||
112 | fw_ver_str = g_strdup_printf("%u.%u", dev_info.fw_ver_major, | |
113 | dev_info.fw_ver_minor); | |
114 | if (!fw_ver_str) { | |
115 | sr_err("Firmware string malloc failed."); | |
116 | sr_usb_dev_inst_free(usb); | |
117 | libusb_free_transfer(devc->xfer_in); | |
118 | libusb_free_transfer(devc->xfer_out); | |
119 | g_free(devc); | |
120 | continue; | |
121 | } | |
122 | ||
123 | sdi = sr_dev_inst_new(device_index, SR_ST_INACTIVE, VENDOR_NAME, | |
124 | MODEL_NAME, fw_ver_str); | |
125 | g_free(fw_ver_str); | |
126 | if (!sdi) { | |
127 | sr_err("sr_dev_inst_new failed."); | |
128 | sr_usb_dev_inst_free(usb); | |
129 | libusb_free_transfer(devc->xfer_in); | |
130 | libusb_free_transfer(devc->xfer_out); | |
131 | g_free(devc); | |
132 | continue; | |
133 | } | |
134 | ||
135 | sdi->priv = devc; | |
136 | sdi->driver = di; | |
137 | sdi->inst_type = SR_INST_USB; | |
138 | sdi->conn = usb; | |
139 | ||
140 | for (i = 0; probe_names[i]; i++) { | |
141 | probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE, | |
142 | probe_names[i]); | |
143 | sdi->probes = g_slist_append(sdi->probes, probe); | |
144 | devc->probes[i] = probe; | |
145 | } | |
146 | ||
147 | devc->state = STATE_IDLE; | |
148 | devc->next_state = STATE_IDLE; | |
149 | ||
150 | /* Set default samplerate. */ | |
151 | sl2_set_samplerate(sdi, DEFAULT_SAMPLERATE); | |
152 | ||
153 | /* Set default capture ratio. */ | |
154 | devc->capture_ratio = 0; | |
155 | ||
156 | /* Set default after trigger delay. */ | |
157 | devc->after_trigger_delay = 0; | |
158 | ||
159 | memset(devc->xfer_buf_in, 0, LIBUSB_CONTROL_SETUP_SIZE + | |
160 | PACKET_LENGTH); | |
161 | memset(devc->xfer_buf_out, 0, LIBUSB_CONTROL_SETUP_SIZE + | |
162 | PACKET_LENGTH); | |
163 | ||
164 | libusb_fill_control_setup(devc->xfer_buf_in, | |
165 | USB_REQUEST_TYPE_IN, USB_HID_GET_REPORT, | |
166 | USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE, | |
167 | PACKET_LENGTH); | |
168 | libusb_fill_control_setup(devc->xfer_buf_out, | |
169 | USB_REQUEST_TYPE_OUT, USB_HID_SET_REPORT, | |
170 | USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE, | |
171 | PACKET_LENGTH); | |
172 | ||
173 | devc->xfer_data_in = devc->xfer_buf_in + | |
174 | LIBUSB_CONTROL_SETUP_SIZE; | |
175 | devc->xfer_data_out = devc->xfer_buf_out + | |
176 | LIBUSB_CONTROL_SETUP_SIZE; | |
177 | ||
178 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
179 | devices = g_slist_append(devices, sdi); | |
180 | ||
181 | device_index++; | |
182 | } | |
183 | ||
184 | g_slist_free(usb_devices); | |
185 | ||
186 | return devices; | |
187 | } | |
188 | ||
189 | static GSList *dev_list(void) | |
190 | { | |
191 | return ((struct drv_context *)(di->priv))->instances; | |
192 | } | |
193 | ||
194 | static void clear_dev_context(void *priv) | |
195 | { | |
196 | struct dev_context *devc; | |
197 | ||
198 | devc = priv; | |
199 | ||
200 | sr_dbg("Device context cleared."); | |
201 | ||
202 | libusb_free_transfer(devc->xfer_in); | |
203 | libusb_free_transfer(devc->xfer_out); | |
204 | g_free(devc); | |
205 | } | |
206 | ||
207 | static int dev_clear(void) | |
208 | { | |
209 | return std_dev_clear(di, &clear_dev_context); | |
210 | } | |
211 | ||
212 | static int dev_open(struct sr_dev_inst *sdi) | |
213 | { | |
214 | struct drv_context *drvc; | |
215 | struct dev_context *devc; | |
216 | struct sr_usb_dev_inst *usb; | |
217 | uint8_t buffer[PACKET_LENGTH]; | |
218 | int ret; | |
219 | ||
220 | if (!(drvc = di->priv)) { | |
221 | sr_err("Driver was not initialized."); | |
222 | return SR_ERR; | |
223 | } | |
224 | ||
225 | usb = sdi->conn; | |
226 | devc = sdi->priv; | |
227 | ||
228 | if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK) | |
229 | return SR_ERR; | |
230 | ||
231 | /* | |
232 | * Determine if a kernel driver is active on this interface and, if so, | |
233 | * detach it. | |
234 | */ | |
235 | if (libusb_kernel_driver_active(usb->devhdl, USB_INTERFACE) == 1) { | |
236 | ret = libusb_detach_kernel_driver(usb->devhdl, USB_INTERFACE); | |
237 | if (ret < 0) { | |
238 | sr_err("Failed to detach kernel driver: %s.", | |
239 | libusb_error_name(ret)); | |
240 | return SR_ERR; | |
241 | } | |
242 | } | |
243 | ||
244 | if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE)) < 0) { | |
245 | sr_err("Failed to claim interface: %s.", | |
246 | libusb_error_name(ret)); | |
247 | return SR_ERR; | |
248 | } | |
249 | ||
250 | libusb_fill_control_transfer(devc->xfer_in, usb->devhdl, | |
251 | devc->xfer_buf_in, sl2_receive_transfer_in, | |
252 | sdi, USB_TIMEOUT); | |
253 | ||
254 | libusb_fill_control_transfer(devc->xfer_out, usb->devhdl, | |
255 | devc->xfer_buf_out, sl2_receive_transfer_out, | |
256 | sdi, USB_TIMEOUT); | |
257 | ||
258 | memset(buffer, 0, sizeof(buffer)); | |
259 | ||
260 | buffer[0] = CMD_RESET; | |
261 | if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) { | |
262 | sr_err("Device reset failed: %s.", libusb_error_name(ret)); | |
263 | return SR_ERR; | |
264 | } | |
265 | ||
266 | /* | |
267 | * Set the device to idle state. If the device is not in idle state it | |
268 | * possibly will reset itself after a few seconds without being used | |
269 | * and thereby close the connection. | |
270 | */ | |
271 | buffer[0] = CMD_IDLE; | |
272 | if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) { | |
273 | sr_err("Failed to set device in idle state: %s.", | |
274 | libusb_error_name(ret)); | |
275 | return SR_ERR; | |
276 | } | |
277 | ||
278 | sdi->status = SR_ST_ACTIVE; | |
279 | ||
280 | return SR_OK; | |
281 | } | |
282 | ||
283 | static int dev_close(struct sr_dev_inst *sdi) | |
284 | { | |
285 | struct sr_usb_dev_inst *usb; | |
286 | ||
287 | if (!di->priv) { | |
288 | sr_err("Driver was not initialized."); | |
289 | return SR_ERR; | |
290 | } | |
291 | ||
292 | usb = sdi->conn; | |
293 | ||
294 | if (!usb->devhdl) | |
295 | return SR_OK; | |
296 | ||
297 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
298 | libusb_close(usb->devhdl); | |
299 | ||
300 | usb->devhdl = NULL; | |
301 | sdi->status = SR_ST_INACTIVE; | |
302 | ||
303 | return SR_OK; | |
304 | } | |
305 | ||
306 | static int cleanup(void) | |
307 | { | |
308 | return dev_clear(); | |
309 | } | |
310 | ||
311 | static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
312 | const struct sr_probe_group *probe_group) | |
313 | { | |
314 | struct dev_context *devc; | |
315 | int ret; | |
316 | ||
317 | (void)probe_group; | |
318 | ||
319 | ret = SR_OK; | |
320 | devc = sdi->priv; | |
321 | ||
322 | switch (key) { | |
323 | case SR_CONF_SAMPLERATE: | |
324 | *data = g_variant_new_uint64(devc->samplerate); | |
325 | break; | |
326 | case SR_CONF_CAPTURE_RATIO: | |
327 | *data = g_variant_new_uint64(devc->capture_ratio); | |
328 | break; | |
329 | case SR_CONF_MAX_UNCOMPRESSED_SAMPLES: | |
330 | *data = g_variant_new_uint64(MAX_SAMPLES); | |
331 | break; | |
332 | default: | |
333 | return SR_ERR_NA; | |
334 | } | |
335 | ||
336 | return ret; | |
337 | } | |
338 | ||
339 | static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi, | |
340 | const struct sr_probe_group *probe_group) | |
341 | { | |
342 | uint64_t samplerate, limit_samples, capture_ratio; | |
343 | int ret; | |
344 | ||
345 | (void)probe_group; | |
346 | ||
347 | if (sdi->status != SR_ST_ACTIVE) | |
348 | return SR_ERR_DEV_CLOSED; | |
349 | ||
350 | ret = SR_OK; | |
351 | ||
352 | switch (key) { | |
353 | case SR_CONF_LIMIT_SAMPLES: | |
354 | limit_samples = g_variant_get_uint64(data); | |
355 | ret = sl2_set_limit_samples(sdi, limit_samples); | |
356 | break; | |
357 | case SR_CONF_SAMPLERATE: | |
358 | samplerate = g_variant_get_uint64(data); | |
359 | ret = sl2_set_samplerate(sdi, samplerate); | |
360 | break; | |
361 | case SR_CONF_CAPTURE_RATIO: | |
362 | capture_ratio = g_variant_get_uint64(data); | |
363 | ret = sl2_set_capture_ratio(sdi, capture_ratio); | |
364 | break; | |
365 | default: | |
366 | return SR_ERR_NA; | |
367 | } | |
368 | ||
369 | return ret; | |
370 | } | |
371 | ||
372 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
373 | const struct sr_probe_group *probe_group) | |
374 | { | |
375 | GVariant *gvar; | |
376 | GVariantBuilder gvb; | |
377 | int ret; | |
378 | ||
379 | (void)sdi; | |
380 | (void)probe_group; | |
381 | ||
382 | ret = SR_OK; | |
383 | ||
384 | switch (key) { | |
385 | case SR_CONF_DEVICE_OPTIONS: | |
386 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, hwcaps, | |
387 | ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
388 | break; | |
389 | case SR_CONF_SAMPLERATE: | |
390 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
391 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
392 | sl2_samplerates, ARRAY_SIZE(sl2_samplerates), | |
393 | sizeof(uint64_t)); | |
394 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
395 | *data = g_variant_builder_end(&gvb); | |
396 | break; | |
397 | case SR_CONF_TRIGGER_TYPE: | |
398 | *data = g_variant_new_string(TRIGGER_TYPES); | |
399 | break; | |
400 | default: | |
401 | return SR_ERR_NA; | |
402 | } | |
403 | ||
404 | return ret; | |
405 | } | |
406 | ||
407 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) | |
408 | { | |
409 | struct drv_context *drvc; | |
410 | struct dev_context *devc; | |
411 | uint16_t trigger_bytes, tmp; | |
412 | unsigned int i, j; | |
413 | int ret; | |
414 | ||
415 | if (sdi->status != SR_ST_ACTIVE) | |
416 | return SR_ERR_DEV_CLOSED; | |
417 | ||
418 | devc = sdi->priv; | |
419 | drvc = di->priv; | |
420 | ||
421 | devc->cb_data = cb_data; | |
422 | devc->wait_data_ready_locked = TRUE; | |
423 | devc->stopping_in_progress = FALSE; | |
424 | devc->transfer_error = FALSE; | |
425 | devc->samples_processed = 0; | |
426 | devc->channel = 0; | |
427 | devc->sample_packet = 0; | |
428 | ||
429 | /* | |
430 | * The trigger must be configured first because the calculation of the | |
431 | * pre and post trigger samples depends on a configured trigger. | |
432 | */ | |
433 | sl2_configure_trigger(sdi); | |
434 | sl2_calculate_trigger_samples(sdi); | |
435 | ||
436 | trigger_bytes = devc->pre_trigger_bytes + devc->post_trigger_bytes; | |
437 | ||
438 | /* Calculate the number of expected sample packets. */ | |
439 | devc->num_sample_packets = trigger_bytes / PACKET_NUM_SAMPLE_BYTES; | |
440 | ||
441 | /* Round up the number of expected sample packets. */ | |
442 | if (trigger_bytes % PACKET_NUM_SAMPLE_BYTES != 0) | |
443 | devc->num_sample_packets++; | |
444 | ||
445 | devc->num_enabled_probes = 0; | |
446 | ||
447 | /* | |
448 | * Count the number of enabled probes and number them for a sequential | |
449 | * access. | |
450 | */ | |
451 | for (i = 0, j = 0; i < NUM_PROBES; i++) { | |
452 | if (devc->probes[i]->enabled) { | |
453 | devc->num_enabled_probes++; | |
454 | devc->probe_map[j] = i; | |
455 | j++; | |
456 | } | |
457 | } | |
458 | ||
459 | sr_dbg("Number of enabled probes: %i.", devc->num_enabled_probes); | |
460 | ||
461 | /* Set up the transfer buffer for the acquisition. */ | |
462 | devc->xfer_data_out[0] = CMD_SAMPLE; | |
463 | devc->xfer_data_out[1] = 0x00; | |
464 | ||
465 | tmp = GUINT16_TO_LE(devc->pre_trigger_bytes); | |
466 | memcpy(devc->xfer_data_out + 2, &tmp, sizeof(tmp)); | |
467 | ||
468 | tmp = GUINT16_TO_LE(devc->post_trigger_bytes); | |
469 | memcpy(devc->xfer_data_out + 4, &tmp, sizeof(tmp)); | |
470 | ||
471 | devc->xfer_data_out[6] = devc->samplerate_id; | |
472 | devc->xfer_data_out[7] = devc->trigger_type; | |
473 | devc->xfer_data_out[8] = devc->trigger_channel; | |
474 | devc->xfer_data_out[9] = 0x00; | |
475 | ||
476 | tmp = GUINT16_TO_LE(devc->after_trigger_delay); | |
477 | memcpy(devc->xfer_data_out + 10, &tmp, sizeof(tmp)); | |
478 | ||
479 | if ((ret = libusb_submit_transfer(devc->xfer_out)) != 0) { | |
480 | sr_err("Submit transfer failed: %s.", libusb_error_name(ret)); | |
481 | return SR_ERR; | |
482 | } | |
483 | ||
484 | usb_source_add(drvc->sr_ctx, 100, ikalogic_scanalogic2_receive_data, (void *)sdi); | |
485 | ||
486 | sr_dbg("Acquisition started successfully."); | |
487 | ||
488 | /* Send header packet to the session bus. */ | |
489 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
490 | ||
491 | devc->next_state = STATE_SAMPLE; | |
492 | ||
493 | return SR_OK; | |
494 | } | |
495 | ||
496 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
497 | { | |
498 | (void)cb_data; | |
499 | ||
500 | if (sdi->status != SR_ST_ACTIVE) | |
501 | return SR_ERR_DEV_CLOSED; | |
502 | ||
503 | sr_dbg("Stopping acquisition."); | |
504 | ||
505 | sdi->status = SR_ST_STOPPING; | |
506 | ||
507 | return SR_OK; | |
508 | } | |
509 | ||
510 | SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info = { | |
511 | .name = "ikalogic-scanalogic2", | |
512 | .longname = "IKALOGIC Scanalogic-2", | |
513 | .api_version = 1, | |
514 | .init = init, | |
515 | .cleanup = cleanup, | |
516 | .scan = scan, | |
517 | .dev_list = dev_list, | |
518 | .dev_clear = dev_clear, | |
519 | .config_get = config_get, | |
520 | .config_set = config_set, | |
521 | .config_list = config_list, | |
522 | .dev_open = dev_open, | |
523 | .dev_close = dev_close, | |
524 | .dev_acquisition_start = dev_acquisition_start, | |
525 | .dev_acquisition_stop = dev_acquisition_stop, | |
526 | .priv = NULL, | |
527 | }; |