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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 uint32_t devopts[] = { | |
23 | SR_CONF_LOGIC_ANALYZER, | |
24 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_LIST, | |
25 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
26 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
27 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, | |
28 | }; | |
29 | ||
30 | static const int32_t trigger_matches[] = { | |
31 | SR_TRIGGER_RISING, | |
32 | SR_TRIGGER_FALLING, | |
33 | SR_TRIGGER_EDGE, | |
34 | }; | |
35 | ||
36 | SR_PRIV const uint64_t sl2_samplerates[NUM_SAMPLERATES] = { | |
37 | SR_KHZ(1.25), | |
38 | SR_KHZ(10), | |
39 | SR_KHZ(50), | |
40 | SR_KHZ(100), | |
41 | SR_KHZ(250), | |
42 | SR_KHZ(500), | |
43 | SR_MHZ(1), | |
44 | SR_MHZ(2.5), | |
45 | SR_MHZ(5), | |
46 | SR_MHZ(10), | |
47 | SR_MHZ(20), | |
48 | }; | |
49 | ||
50 | static const char *channel_names[] = { | |
51 | "0", "1", "2", "3", | |
52 | }; | |
53 | ||
54 | SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info; | |
55 | ||
56 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) | |
57 | { | |
58 | return std_init(sr_ctx, di, LOG_PREFIX); | |
59 | } | |
60 | ||
61 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
62 | { | |
63 | GSList *usb_devices, *devices, *l; | |
64 | struct drv_context *drvc; | |
65 | struct sr_dev_inst *sdi; | |
66 | struct dev_context *devc; | |
67 | struct sr_usb_dev_inst *usb; | |
68 | struct device_info dev_info; | |
69 | unsigned int i; | |
70 | int ret; | |
71 | ||
72 | (void)options; | |
73 | ||
74 | devices = NULL; | |
75 | drvc = di->context; | |
76 | drvc->instances = NULL; | |
77 | ||
78 | usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_VID_PID); | |
79 | ||
80 | if (!usb_devices) | |
81 | return NULL; | |
82 | ||
83 | for (l = usb_devices; l; l = l->next) { | |
84 | usb = l->data; | |
85 | ||
86 | if ((ret = sl2_get_device_info(*usb, &dev_info)) < 0) { | |
87 | sr_warn("Failed to get device information: %d.", ret); | |
88 | sr_usb_dev_inst_free(usb); | |
89 | continue; | |
90 | } | |
91 | ||
92 | devc = g_malloc0(sizeof(struct dev_context)); | |
93 | ||
94 | if (!(devc->xfer_in = libusb_alloc_transfer(0))) { | |
95 | sr_err("Transfer malloc failed."); | |
96 | sr_usb_dev_inst_free(usb); | |
97 | g_free(devc); | |
98 | continue; | |
99 | } | |
100 | ||
101 | if (!(devc->xfer_out = libusb_alloc_transfer(0))) { | |
102 | sr_err("Transfer malloc failed."); | |
103 | sr_usb_dev_inst_free(usb); | |
104 | libusb_free_transfer(devc->xfer_in); | |
105 | g_free(devc); | |
106 | continue; | |
107 | } | |
108 | ||
109 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
110 | sdi->status = SR_ST_INACTIVE; | |
111 | sdi->vendor = g_strdup(VENDOR_NAME); | |
112 | sdi->model = g_strdup(MODEL_NAME); | |
113 | sdi->version = g_strdup_printf("%u.%u", dev_info.fw_ver_major, dev_info.fw_ver_minor); | |
114 | sdi->serial_num = g_strdup_printf("%d", dev_info.serial); | |
115 | sdi->priv = devc; | |
116 | sdi->driver = di; | |
117 | sdi->inst_type = SR_INST_USB; | |
118 | sdi->conn = usb; | |
119 | ||
120 | for (i = 0; i < ARRAY_SIZE(channel_names); i++) | |
121 | devc->channels[i] = sr_channel_new(sdi, i, | |
122 | SR_CHANNEL_LOGIC, TRUE, channel_names[i]); | |
123 | ||
124 | devc->state = STATE_IDLE; | |
125 | devc->next_state = STATE_IDLE; | |
126 | ||
127 | /* Set default samplerate. */ | |
128 | sl2_set_samplerate(sdi, DEFAULT_SAMPLERATE); | |
129 | ||
130 | /* Set default capture ratio. */ | |
131 | devc->capture_ratio = 0; | |
132 | ||
133 | /* Set default after trigger delay. */ | |
134 | devc->after_trigger_delay = 0; | |
135 | ||
136 | memset(devc->xfer_buf_in, 0, LIBUSB_CONTROL_SETUP_SIZE + | |
137 | PACKET_LENGTH); | |
138 | memset(devc->xfer_buf_out, 0, LIBUSB_CONTROL_SETUP_SIZE + | |
139 | PACKET_LENGTH); | |
140 | ||
141 | libusb_fill_control_setup(devc->xfer_buf_in, | |
142 | USB_REQUEST_TYPE_IN, USB_HID_GET_REPORT, | |
143 | USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE, | |
144 | PACKET_LENGTH); | |
145 | libusb_fill_control_setup(devc->xfer_buf_out, | |
146 | USB_REQUEST_TYPE_OUT, USB_HID_SET_REPORT, | |
147 | USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE, | |
148 | PACKET_LENGTH); | |
149 | ||
150 | devc->xfer_data_in = devc->xfer_buf_in + | |
151 | LIBUSB_CONTROL_SETUP_SIZE; | |
152 | devc->xfer_data_out = devc->xfer_buf_out + | |
153 | LIBUSB_CONTROL_SETUP_SIZE; | |
154 | ||
155 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
156 | devices = g_slist_append(devices, sdi); | |
157 | } | |
158 | ||
159 | g_slist_free(usb_devices); | |
160 | ||
161 | return devices; | |
162 | } | |
163 | ||
164 | static GSList *dev_list(const struct sr_dev_driver *di) | |
165 | { | |
166 | return ((struct drv_context *)(di->context))->instances; | |
167 | } | |
168 | ||
169 | static void clear_dev_context(void *priv) | |
170 | { | |
171 | struct dev_context *devc; | |
172 | ||
173 | devc = priv; | |
174 | ||
175 | sr_dbg("Device context cleared."); | |
176 | ||
177 | libusb_free_transfer(devc->xfer_in); | |
178 | libusb_free_transfer(devc->xfer_out); | |
179 | g_free(devc); | |
180 | } | |
181 | ||
182 | static int dev_clear(const struct sr_dev_driver *di) | |
183 | { | |
184 | return std_dev_clear(di, &clear_dev_context); | |
185 | } | |
186 | ||
187 | static int dev_open(struct sr_dev_inst *sdi) | |
188 | { | |
189 | struct sr_dev_driver *di = sdi->driver; | |
190 | struct drv_context *drvc; | |
191 | struct dev_context *devc; | |
192 | struct sr_usb_dev_inst *usb; | |
193 | uint8_t buffer[PACKET_LENGTH]; | |
194 | int ret; | |
195 | ||
196 | if (!(drvc = di->context)) { | |
197 | sr_err("Driver was not initialized."); | |
198 | return SR_ERR; | |
199 | } | |
200 | ||
201 | usb = sdi->conn; | |
202 | devc = sdi->priv; | |
203 | ||
204 | if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK) | |
205 | return SR_ERR; | |
206 | ||
207 | /* | |
208 | * Determine if a kernel driver is active on this interface and, if so, | |
209 | * detach it. | |
210 | */ | |
211 | if (libusb_kernel_driver_active(usb->devhdl, USB_INTERFACE) == 1) { | |
212 | ret = libusb_detach_kernel_driver(usb->devhdl, USB_INTERFACE); | |
213 | if (ret < 0) { | |
214 | sr_err("Failed to detach kernel driver: %s.", | |
215 | libusb_error_name(ret)); | |
216 | return SR_ERR; | |
217 | } | |
218 | } | |
219 | ||
220 | if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE)) < 0) { | |
221 | sr_err("Failed to claim interface: %s.", | |
222 | libusb_error_name(ret)); | |
223 | return SR_ERR; | |
224 | } | |
225 | ||
226 | libusb_fill_control_transfer(devc->xfer_in, usb->devhdl, | |
227 | devc->xfer_buf_in, sl2_receive_transfer_in, | |
228 | sdi, USB_TIMEOUT_MS); | |
229 | ||
230 | libusb_fill_control_transfer(devc->xfer_out, usb->devhdl, | |
231 | devc->xfer_buf_out, sl2_receive_transfer_out, | |
232 | sdi, USB_TIMEOUT_MS); | |
233 | ||
234 | memset(buffer, 0, sizeof(buffer)); | |
235 | ||
236 | buffer[0] = CMD_RESET; | |
237 | if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) { | |
238 | sr_err("Device reset failed: %s.", libusb_error_name(ret)); | |
239 | return SR_ERR; | |
240 | } | |
241 | ||
242 | /* | |
243 | * Set the device to idle state. If the device is not in idle state it | |
244 | * possibly will reset itself after a few seconds without being used | |
245 | * and thereby close the connection. | |
246 | */ | |
247 | buffer[0] = CMD_IDLE; | |
248 | if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) { | |
249 | sr_err("Failed to set device in idle state: %s.", | |
250 | libusb_error_name(ret)); | |
251 | return SR_ERR; | |
252 | } | |
253 | ||
254 | sdi->status = SR_ST_ACTIVE; | |
255 | ||
256 | return SR_OK; | |
257 | } | |
258 | ||
259 | static int dev_close(struct sr_dev_inst *sdi) | |
260 | { | |
261 | struct sr_dev_driver *di = sdi->driver; | |
262 | struct sr_usb_dev_inst *usb; | |
263 | ||
264 | if (!di->context) { | |
265 | sr_err("Driver was not initialized."); | |
266 | return SR_ERR; | |
267 | } | |
268 | ||
269 | usb = sdi->conn; | |
270 | ||
271 | if (!usb->devhdl) | |
272 | return SR_OK; | |
273 | ||
274 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
275 | libusb_close(usb->devhdl); | |
276 | ||
277 | usb->devhdl = NULL; | |
278 | sdi->status = SR_ST_INACTIVE; | |
279 | ||
280 | return SR_OK; | |
281 | } | |
282 | ||
283 | static int cleanup(const struct sr_dev_driver *di) | |
284 | { | |
285 | return dev_clear(di); | |
286 | } | |
287 | ||
288 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
289 | const struct sr_channel_group *cg) | |
290 | { | |
291 | struct dev_context *devc; | |
292 | int ret; | |
293 | ||
294 | (void)cg; | |
295 | ||
296 | ret = SR_OK; | |
297 | devc = sdi->priv; | |
298 | ||
299 | switch (key) { | |
300 | case SR_CONF_SAMPLERATE: | |
301 | *data = g_variant_new_uint64(devc->samplerate); | |
302 | break; | |
303 | case SR_CONF_CAPTURE_RATIO: | |
304 | *data = g_variant_new_uint64(devc->capture_ratio); | |
305 | break; | |
306 | default: | |
307 | return SR_ERR_NA; | |
308 | } | |
309 | ||
310 | return ret; | |
311 | } | |
312 | ||
313 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
314 | const struct sr_channel_group *cg) | |
315 | { | |
316 | uint64_t samplerate, limit_samples, capture_ratio; | |
317 | int ret; | |
318 | ||
319 | (void)cg; | |
320 | ||
321 | if (sdi->status != SR_ST_ACTIVE) | |
322 | return SR_ERR_DEV_CLOSED; | |
323 | ||
324 | ret = SR_OK; | |
325 | ||
326 | switch (key) { | |
327 | case SR_CONF_LIMIT_SAMPLES: | |
328 | limit_samples = g_variant_get_uint64(data); | |
329 | ret = sl2_set_limit_samples(sdi, limit_samples); | |
330 | break; | |
331 | case SR_CONF_SAMPLERATE: | |
332 | samplerate = g_variant_get_uint64(data); | |
333 | ret = sl2_set_samplerate(sdi, samplerate); | |
334 | break; | |
335 | case SR_CONF_CAPTURE_RATIO: | |
336 | capture_ratio = g_variant_get_uint64(data); | |
337 | ret = sl2_set_capture_ratio(sdi, capture_ratio); | |
338 | break; | |
339 | default: | |
340 | return SR_ERR_NA; | |
341 | } | |
342 | ||
343 | return ret; | |
344 | } | |
345 | ||
346 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
347 | const struct sr_channel_group *cg) | |
348 | { | |
349 | GVariant *gvar, *grange[2]; | |
350 | GVariantBuilder gvb; | |
351 | int ret; | |
352 | ||
353 | (void)sdi; | |
354 | (void)cg; | |
355 | ||
356 | ret = SR_OK; | |
357 | switch (key) { | |
358 | case SR_CONF_DEVICE_OPTIONS: | |
359 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
360 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
361 | break; | |
362 | case SR_CONF_SAMPLERATE: | |
363 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
364 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
365 | sl2_samplerates, ARRAY_SIZE(sl2_samplerates), | |
366 | sizeof(uint64_t)); | |
367 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
368 | *data = g_variant_builder_end(&gvb); | |
369 | break; | |
370 | case SR_CONF_TRIGGER_MATCH: | |
371 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
372 | trigger_matches, ARRAY_SIZE(trigger_matches), | |
373 | sizeof(int32_t)); | |
374 | break; | |
375 | case SR_CONF_LIMIT_SAMPLES: | |
376 | grange[0] = g_variant_new_uint64(0); | |
377 | grange[1] = g_variant_new_uint64(MAX_SAMPLES); | |
378 | *data = g_variant_new_tuple(grange, 2); | |
379 | break; | |
380 | default: | |
381 | return SR_ERR_NA; | |
382 | } | |
383 | ||
384 | return ret; | |
385 | } | |
386 | ||
387 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) | |
388 | { | |
389 | struct sr_dev_driver *di = sdi->driver; | |
390 | struct drv_context *drvc; | |
391 | struct dev_context *devc; | |
392 | uint16_t trigger_bytes, tmp; | |
393 | unsigned int i, j; | |
394 | int ret; | |
395 | ||
396 | if (sdi->status != SR_ST_ACTIVE) | |
397 | return SR_ERR_DEV_CLOSED; | |
398 | ||
399 | devc = sdi->priv; | |
400 | drvc = di->context; | |
401 | ||
402 | devc->cb_data = cb_data; | |
403 | devc->wait_data_ready_locked = TRUE; | |
404 | devc->stopping_in_progress = FALSE; | |
405 | devc->transfer_error = FALSE; | |
406 | devc->samples_processed = 0; | |
407 | devc->channel = 0; | |
408 | devc->sample_packet = 0; | |
409 | ||
410 | /* | |
411 | * The trigger must be configured first because the calculation of the | |
412 | * pre and post trigger samples depends on a configured trigger. | |
413 | */ | |
414 | sl2_convert_trigger(sdi); | |
415 | sl2_calculate_trigger_samples(sdi); | |
416 | ||
417 | trigger_bytes = devc->pre_trigger_bytes + devc->post_trigger_bytes; | |
418 | ||
419 | /* Calculate the number of expected sample packets. */ | |
420 | devc->num_sample_packets = trigger_bytes / PACKET_NUM_SAMPLE_BYTES; | |
421 | ||
422 | /* Round up the number of expected sample packets. */ | |
423 | if (trigger_bytes % PACKET_NUM_SAMPLE_BYTES != 0) | |
424 | devc->num_sample_packets++; | |
425 | ||
426 | devc->num_enabled_channels = 0; | |
427 | ||
428 | /* | |
429 | * Count the number of enabled channels and number them for a sequential | |
430 | * access. | |
431 | */ | |
432 | for (i = 0, j = 0; i < NUM_CHANNELS; i++) { | |
433 | if (devc->channels[i]->enabled) { | |
434 | devc->num_enabled_channels++; | |
435 | devc->channel_map[j] = i; | |
436 | j++; | |
437 | } | |
438 | } | |
439 | ||
440 | sr_dbg("Number of enabled channels: %i.", devc->num_enabled_channels); | |
441 | ||
442 | /* Set up the transfer buffer for the acquisition. */ | |
443 | devc->xfer_data_out[0] = CMD_SAMPLE; | |
444 | devc->xfer_data_out[1] = 0x00; | |
445 | ||
446 | tmp = GUINT16_TO_LE(devc->pre_trigger_bytes); | |
447 | memcpy(devc->xfer_data_out + 2, &tmp, sizeof(tmp)); | |
448 | ||
449 | tmp = GUINT16_TO_LE(devc->post_trigger_bytes); | |
450 | memcpy(devc->xfer_data_out + 4, &tmp, sizeof(tmp)); | |
451 | ||
452 | devc->xfer_data_out[6] = devc->samplerate_id; | |
453 | devc->xfer_data_out[7] = devc->trigger_type; | |
454 | devc->xfer_data_out[8] = devc->trigger_channel; | |
455 | devc->xfer_data_out[9] = 0x00; | |
456 | ||
457 | tmp = GUINT16_TO_LE(devc->after_trigger_delay); | |
458 | memcpy(devc->xfer_data_out + 10, &tmp, sizeof(tmp)); | |
459 | ||
460 | if ((ret = libusb_submit_transfer(devc->xfer_out)) != 0) { | |
461 | sr_err("Submit transfer failed: %s.", libusb_error_name(ret)); | |
462 | return SR_ERR; | |
463 | } | |
464 | ||
465 | usb_source_add(sdi->session, drvc->sr_ctx, 100, | |
466 | ikalogic_scanalogic2_receive_data, (void *)sdi); | |
467 | ||
468 | sr_dbg("Acquisition started successfully."); | |
469 | ||
470 | /* Send header packet to the session bus. */ | |
471 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
472 | ||
473 | devc->next_state = STATE_SAMPLE; | |
474 | ||
475 | return SR_OK; | |
476 | } | |
477 | ||
478 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
479 | { | |
480 | (void)cb_data; | |
481 | ||
482 | if (sdi->status != SR_ST_ACTIVE) | |
483 | return SR_ERR_DEV_CLOSED; | |
484 | ||
485 | sr_dbg("Stopping acquisition."); | |
486 | ||
487 | sdi->status = SR_ST_STOPPING; | |
488 | ||
489 | return SR_OK; | |
490 | } | |
491 | ||
492 | SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info = { | |
493 | .name = "ikalogic-scanalogic2", | |
494 | .longname = "IKALOGIC Scanalogic-2", | |
495 | .api_version = 1, | |
496 | .init = init, | |
497 | .cleanup = cleanup, | |
498 | .scan = scan, | |
499 | .dev_list = dev_list, | |
500 | .dev_clear = dev_clear, | |
501 | .config_get = config_get, | |
502 | .config_set = config_set, | |
503 | .config_list = config_list, | |
504 | .dev_open = dev_open, | |
505 | .dev_close = dev_close, | |
506 | .dev_acquisition_start = dev_acquisition_start, | |
507 | .dev_acquisition_stop = dev_acquisition_stop, | |
508 | .context = NULL, | |
509 | }; |