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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 <config.h> | |
21 | #include "protocol.h" | |
22 | ||
23 | static const uint32_t drvopts[] = { | |
24 | SR_CONF_LOGIC_ANALYZER, | |
25 | }; | |
26 | ||
27 | static const uint32_t devopts[] = { | |
28 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_LIST, | |
29 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
30 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
31 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, | |
32 | }; | |
33 | ||
34 | static const int32_t trigger_matches[] = { | |
35 | SR_TRIGGER_RISING, | |
36 | SR_TRIGGER_FALLING, | |
37 | SR_TRIGGER_EDGE, | |
38 | }; | |
39 | ||
40 | SR_PRIV const uint64_t sl2_samplerates[NUM_SAMPLERATES] = { | |
41 | SR_KHZ(1.25), | |
42 | SR_KHZ(10), | |
43 | SR_KHZ(50), | |
44 | SR_KHZ(100), | |
45 | SR_KHZ(250), | |
46 | SR_KHZ(500), | |
47 | SR_MHZ(1), | |
48 | SR_MHZ(2.5), | |
49 | SR_MHZ(5), | |
50 | SR_MHZ(10), | |
51 | SR_MHZ(20), | |
52 | }; | |
53 | ||
54 | static const char *channel_names[] = { | |
55 | "0", "1", "2", "3", | |
56 | }; | |
57 | ||
58 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
59 | { | |
60 | GSList *usb_devices, *devices, *l; | |
61 | struct drv_context *drvc; | |
62 | struct sr_dev_inst *sdi; | |
63 | struct dev_context *devc; | |
64 | struct sr_usb_dev_inst *usb; | |
65 | struct device_info dev_info; | |
66 | unsigned int i; | |
67 | int ret; | |
68 | ||
69 | (void)options; | |
70 | ||
71 | devices = NULL; | |
72 | drvc = di->context; | |
73 | ||
74 | usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_VID_PID); | |
75 | ||
76 | if (!usb_devices) | |
77 | return NULL; | |
78 | ||
79 | for (l = usb_devices; l; l = l->next) { | |
80 | usb = l->data; | |
81 | ||
82 | if ((ret = sl2_get_device_info(di, *usb, &dev_info)) < 0) { | |
83 | sr_warn("Failed to get device information: %d.", ret); | |
84 | sr_usb_dev_inst_free(usb); | |
85 | continue; | |
86 | } | |
87 | ||
88 | devc = g_malloc0(sizeof(struct dev_context)); | |
89 | ||
90 | if (!(devc->xfer_in = libusb_alloc_transfer(0))) { | |
91 | sr_err("Transfer malloc failed."); | |
92 | sr_usb_dev_inst_free(usb); | |
93 | g_free(devc); | |
94 | continue; | |
95 | } | |
96 | ||
97 | if (!(devc->xfer_out = libusb_alloc_transfer(0))) { | |
98 | sr_err("Transfer malloc failed."); | |
99 | sr_usb_dev_inst_free(usb); | |
100 | libusb_free_transfer(devc->xfer_in); | |
101 | g_free(devc); | |
102 | continue; | |
103 | } | |
104 | ||
105 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
106 | sdi->status = SR_ST_INACTIVE; | |
107 | sdi->vendor = g_strdup(VENDOR_NAME); | |
108 | sdi->model = g_strdup(MODEL_NAME); | |
109 | sdi->version = g_strdup_printf("%u.%u", dev_info.fw_ver_major, dev_info.fw_ver_minor); | |
110 | sdi->serial_num = g_strdup_printf("%d", dev_info.serial); | |
111 | sdi->priv = devc; | |
112 | sdi->inst_type = SR_INST_USB; | |
113 | sdi->conn = usb; | |
114 | ||
115 | for (i = 0; i < ARRAY_SIZE(channel_names); i++) | |
116 | devc->channels[i] = sr_channel_new(sdi, i, | |
117 | SR_CHANNEL_LOGIC, TRUE, channel_names[i]); | |
118 | ||
119 | devc->state = STATE_IDLE; | |
120 | devc->next_state = STATE_IDLE; | |
121 | ||
122 | /* Set default samplerate. */ | |
123 | sl2_set_samplerate(sdi, DEFAULT_SAMPLERATE); | |
124 | ||
125 | /* Set default capture ratio. */ | |
126 | devc->capture_ratio = 0; | |
127 | ||
128 | /* Set default after trigger delay. */ | |
129 | devc->after_trigger_delay = 0; | |
130 | ||
131 | memset(devc->xfer_buf_in, 0, LIBUSB_CONTROL_SETUP_SIZE + | |
132 | PACKET_LENGTH); | |
133 | memset(devc->xfer_buf_out, 0, LIBUSB_CONTROL_SETUP_SIZE + | |
134 | PACKET_LENGTH); | |
135 | ||
136 | libusb_fill_control_setup(devc->xfer_buf_in, | |
137 | USB_REQUEST_TYPE_IN, USB_HID_GET_REPORT, | |
138 | USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE, | |
139 | PACKET_LENGTH); | |
140 | libusb_fill_control_setup(devc->xfer_buf_out, | |
141 | USB_REQUEST_TYPE_OUT, USB_HID_SET_REPORT, | |
142 | USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE, | |
143 | PACKET_LENGTH); | |
144 | ||
145 | devc->xfer_data_in = devc->xfer_buf_in + | |
146 | LIBUSB_CONTROL_SETUP_SIZE; | |
147 | devc->xfer_data_out = devc->xfer_buf_out + | |
148 | LIBUSB_CONTROL_SETUP_SIZE; | |
149 | ||
150 | devices = g_slist_append(devices, sdi); | |
151 | } | |
152 | ||
153 | g_slist_free(usb_devices); | |
154 | ||
155 | return std_scan_complete(di, devices); | |
156 | } | |
157 | ||
158 | static void clear_helper(struct dev_context *devc) | |
159 | { | |
160 | libusb_free_transfer(devc->xfer_in); | |
161 | libusb_free_transfer(devc->xfer_out); | |
162 | } | |
163 | ||
164 | static int dev_clear(const struct sr_dev_driver *di) | |
165 | { | |
166 | return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper); | |
167 | } | |
168 | ||
169 | static int dev_open(struct sr_dev_inst *sdi) | |
170 | { | |
171 | struct sr_dev_driver *di = sdi->driver; | |
172 | struct drv_context *drvc = di->context; | |
173 | struct dev_context *devc; | |
174 | struct sr_usb_dev_inst *usb; | |
175 | uint8_t buffer[PACKET_LENGTH]; | |
176 | int ret; | |
177 | ||
178 | usb = sdi->conn; | |
179 | devc = sdi->priv; | |
180 | ||
181 | if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK) | |
182 | return SR_ERR; | |
183 | ||
184 | if (libusb_kernel_driver_active(usb->devhdl, USB_INTERFACE) == 1) { | |
185 | ret = libusb_detach_kernel_driver(usb->devhdl, USB_INTERFACE); | |
186 | if (ret < 0) { | |
187 | sr_err("Failed to detach kernel driver: %s.", | |
188 | libusb_error_name(ret)); | |
189 | return SR_ERR; | |
190 | } | |
191 | } | |
192 | ||
193 | if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE)) < 0) { | |
194 | sr_err("Failed to claim interface: %s.", | |
195 | libusb_error_name(ret)); | |
196 | return SR_ERR; | |
197 | } | |
198 | ||
199 | libusb_fill_control_transfer(devc->xfer_in, usb->devhdl, | |
200 | devc->xfer_buf_in, sl2_receive_transfer_in, | |
201 | sdi, USB_TIMEOUT_MS); | |
202 | ||
203 | libusb_fill_control_transfer(devc->xfer_out, usb->devhdl, | |
204 | devc->xfer_buf_out, sl2_receive_transfer_out, | |
205 | sdi, USB_TIMEOUT_MS); | |
206 | ||
207 | memset(buffer, 0, sizeof(buffer)); | |
208 | ||
209 | buffer[0] = CMD_RESET; | |
210 | if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) { | |
211 | sr_err("Device reset failed: %s.", libusb_error_name(ret)); | |
212 | return SR_ERR; | |
213 | } | |
214 | ||
215 | /* | |
216 | * Set the device to idle state. If the device is not in idle state it | |
217 | * possibly will reset itself after a few seconds without being used | |
218 | * and thereby close the connection. | |
219 | */ | |
220 | buffer[0] = CMD_IDLE; | |
221 | if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) { | |
222 | sr_err("Failed to set device in idle state: %s.", | |
223 | libusb_error_name(ret)); | |
224 | return SR_ERR; | |
225 | } | |
226 | ||
227 | return SR_OK; | |
228 | } | |
229 | ||
230 | static int dev_close(struct sr_dev_inst *sdi) | |
231 | { | |
232 | struct sr_usb_dev_inst *usb; | |
233 | ||
234 | usb = sdi->conn; | |
235 | ||
236 | if (!usb->devhdl) | |
237 | return SR_ERR_BUG; | |
238 | ||
239 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
240 | libusb_close(usb->devhdl); | |
241 | ||
242 | usb->devhdl = NULL; | |
243 | ||
244 | return SR_OK; | |
245 | } | |
246 | ||
247 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
248 | const struct sr_channel_group *cg) | |
249 | { | |
250 | struct dev_context *devc; | |
251 | int ret; | |
252 | ||
253 | (void)cg; | |
254 | ||
255 | ret = SR_OK; | |
256 | devc = sdi->priv; | |
257 | ||
258 | switch (key) { | |
259 | case SR_CONF_SAMPLERATE: | |
260 | *data = g_variant_new_uint64(devc->samplerate); | |
261 | break; | |
262 | case SR_CONF_CAPTURE_RATIO: | |
263 | *data = g_variant_new_uint64(devc->capture_ratio); | |
264 | break; | |
265 | default: | |
266 | return SR_ERR_NA; | |
267 | } | |
268 | ||
269 | return ret; | |
270 | } | |
271 | ||
272 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
273 | const struct sr_channel_group *cg) | |
274 | { | |
275 | uint64_t samplerate, limit_samples, capture_ratio; | |
276 | int ret; | |
277 | ||
278 | (void)cg; | |
279 | ||
280 | switch (key) { | |
281 | case SR_CONF_LIMIT_SAMPLES: | |
282 | limit_samples = g_variant_get_uint64(data); | |
283 | ret = sl2_set_limit_samples(sdi, limit_samples); | |
284 | break; | |
285 | case SR_CONF_SAMPLERATE: | |
286 | samplerate = g_variant_get_uint64(data); | |
287 | ret = sl2_set_samplerate(sdi, samplerate); | |
288 | break; | |
289 | case SR_CONF_CAPTURE_RATIO: | |
290 | capture_ratio = g_variant_get_uint64(data); | |
291 | ret = sl2_set_capture_ratio(sdi, capture_ratio); | |
292 | break; | |
293 | default: | |
294 | return SR_ERR_NA; | |
295 | } | |
296 | ||
297 | return ret; | |
298 | } | |
299 | ||
300 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
301 | const struct sr_channel_group *cg) | |
302 | { | |
303 | GVariant *grange[2]; | |
304 | ||
305 | switch (key) { | |
306 | case SR_CONF_DEVICE_OPTIONS: | |
307 | return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts); | |
308 | case SR_CONF_SAMPLERATE: | |
309 | *data = std_gvar_samplerates(sl2_samplerates, ARRAY_SIZE(sl2_samplerates)); | |
310 | break; | |
311 | case SR_CONF_TRIGGER_MATCH: | |
312 | *data = std_gvar_array_i32(trigger_matches, ARRAY_SIZE(trigger_matches)); | |
313 | break; | |
314 | case SR_CONF_LIMIT_SAMPLES: | |
315 | grange[0] = g_variant_new_uint64(0); | |
316 | grange[1] = g_variant_new_uint64(MAX_SAMPLES); | |
317 | *data = g_variant_new_tuple(grange, 2); | |
318 | break; | |
319 | default: | |
320 | return SR_ERR_NA; | |
321 | } | |
322 | ||
323 | return SR_OK; | |
324 | } | |
325 | ||
326 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
327 | { | |
328 | struct sr_dev_driver *di = sdi->driver; | |
329 | struct drv_context *drvc; | |
330 | struct dev_context *devc; | |
331 | uint16_t trigger_bytes, tmp; | |
332 | unsigned int i, j; | |
333 | int ret; | |
334 | ||
335 | devc = sdi->priv; | |
336 | drvc = di->context; | |
337 | ||
338 | devc->wait_data_ready_locked = TRUE; | |
339 | devc->stopping_in_progress = FALSE; | |
340 | devc->transfer_error = FALSE; | |
341 | devc->samples_processed = 0; | |
342 | devc->channel = 0; | |
343 | devc->sample_packet = 0; | |
344 | ||
345 | /* | |
346 | * The trigger must be configured first because the calculation of the | |
347 | * pre and post trigger samples depends on a configured trigger. | |
348 | */ | |
349 | sl2_convert_trigger(sdi); | |
350 | sl2_calculate_trigger_samples(sdi); | |
351 | ||
352 | trigger_bytes = devc->pre_trigger_bytes + devc->post_trigger_bytes; | |
353 | ||
354 | /* Calculate the number of expected sample packets. */ | |
355 | devc->num_sample_packets = trigger_bytes / PACKET_NUM_SAMPLE_BYTES; | |
356 | ||
357 | /* Round up the number of expected sample packets. */ | |
358 | if (trigger_bytes % PACKET_NUM_SAMPLE_BYTES != 0) | |
359 | devc->num_sample_packets++; | |
360 | ||
361 | devc->num_enabled_channels = 0; | |
362 | ||
363 | /* | |
364 | * Count the number of enabled channels and number them for a sequential | |
365 | * access. | |
366 | */ | |
367 | for (i = 0, j = 0; i < NUM_CHANNELS; i++) { | |
368 | if (devc->channels[i]->enabled) { | |
369 | devc->num_enabled_channels++; | |
370 | devc->channel_map[j] = i; | |
371 | j++; | |
372 | } | |
373 | } | |
374 | ||
375 | sr_dbg("Number of enabled channels: %i.", devc->num_enabled_channels); | |
376 | ||
377 | /* Set up the transfer buffer for the acquisition. */ | |
378 | devc->xfer_data_out[0] = CMD_SAMPLE; | |
379 | devc->xfer_data_out[1] = 0x00; | |
380 | ||
381 | tmp = GUINT16_TO_LE(devc->pre_trigger_bytes); | |
382 | memcpy(devc->xfer_data_out + 2, &tmp, sizeof(tmp)); | |
383 | ||
384 | tmp = GUINT16_TO_LE(devc->post_trigger_bytes); | |
385 | memcpy(devc->xfer_data_out + 4, &tmp, sizeof(tmp)); | |
386 | ||
387 | devc->xfer_data_out[6] = devc->samplerate_id; | |
388 | devc->xfer_data_out[7] = devc->trigger_type; | |
389 | devc->xfer_data_out[8] = devc->trigger_channel; | |
390 | devc->xfer_data_out[9] = 0x00; | |
391 | ||
392 | tmp = GUINT16_TO_LE(devc->after_trigger_delay); | |
393 | memcpy(devc->xfer_data_out + 10, &tmp, sizeof(tmp)); | |
394 | ||
395 | if ((ret = libusb_submit_transfer(devc->xfer_out)) != 0) { | |
396 | sr_err("Submit transfer failed: %s.", libusb_error_name(ret)); | |
397 | return SR_ERR; | |
398 | } | |
399 | ||
400 | usb_source_add(sdi->session, drvc->sr_ctx, 100, | |
401 | ikalogic_scanalogic2_receive_data, (void *)sdi); | |
402 | ||
403 | std_session_send_df_header(sdi); | |
404 | ||
405 | devc->next_state = STATE_SAMPLE; | |
406 | ||
407 | return SR_OK; | |
408 | } | |
409 | ||
410 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
411 | { | |
412 | sdi->status = SR_ST_STOPPING; | |
413 | ||
414 | return SR_OK; | |
415 | } | |
416 | ||
417 | static struct sr_dev_driver ikalogic_scanalogic2_driver_info = { | |
418 | .name = "ikalogic-scanalogic2", | |
419 | .longname = "IKALOGIC Scanalogic-2", | |
420 | .api_version = 1, | |
421 | .init = std_init, | |
422 | .cleanup = std_cleanup, | |
423 | .scan = scan, | |
424 | .dev_list = std_dev_list, | |
425 | .dev_clear = dev_clear, | |
426 | .config_get = config_get, | |
427 | .config_set = config_set, | |
428 | .config_list = config_list, | |
429 | .dev_open = dev_open, | |
430 | .dev_close = dev_close, | |
431 | .dev_acquisition_start = dev_acquisition_start, | |
432 | .dev_acquisition_stop = dev_acquisition_stop, | |
433 | .context = NULL, | |
434 | }; | |
435 | SR_REGISTER_DEV_DRIVER(ikalogic_scanalogic2_driver_info); |