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1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2017 Jan Luebbe <jluebbe@lasnet.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 <glib.h> | |
22 | #include <string.h> | |
23 | #include "protocol.h" | |
24 | ||
25 | #define BUF_COUNT 512 | |
26 | #define BUF_SIZE (16 * 1024) | |
27 | #define BUF_TIMEOUT 1000 | |
28 | ||
29 | SR_PRIV struct sr_dev_driver saleae_logic_pro_driver_info; | |
30 | ||
31 | static const uint32_t scanopts[] = { | |
32 | SR_CONF_CONN, | |
33 | }; | |
34 | ||
35 | static const uint32_t drvopts[] = { | |
36 | SR_CONF_LOGIC_ANALYZER, | |
37 | }; | |
38 | ||
39 | static const uint32_t devopts[] = { | |
40 | SR_CONF_CONTINUOUS, | |
41 | SR_CONF_CONN | SR_CONF_GET, | |
42 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
43 | }; | |
44 | ||
45 | static const char *channel_names[] = { | |
46 | "0", "1", "2", "3", "4", "5", "6", "7", | |
47 | "8", "9", "10", "11", "12", "13", "14", "15", | |
48 | }; | |
49 | ||
50 | static const uint64_t samplerates[] = { | |
51 | SR_MHZ(1), | |
52 | SR_MHZ(2), | |
53 | SR_KHZ(2500), | |
54 | SR_MHZ(10), | |
55 | SR_MHZ(25), | |
56 | SR_MHZ(50), | |
57 | }; | |
58 | ||
59 | #define FW_HEADER_SIZE 7 | |
60 | #define FW_MAX_PART_SIZE (4 * 1024) | |
61 | ||
62 | static int upload_firmware(struct sr_context *ctx, libusb_device *dev, const char *name) | |
63 | { | |
64 | struct libusb_device_handle *hdl = NULL; | |
65 | unsigned char *firmware = NULL; | |
66 | int ret = SR_ERR; | |
67 | size_t fw_size, fw_offset = 0; | |
68 | uint32_t part_address = 0; | |
69 | uint16_t part_size = 0; | |
70 | uint8_t part_final = 0; | |
71 | ||
72 | firmware = sr_resource_load(ctx, SR_RESOURCE_FIRMWARE, | |
73 | name, &fw_size, 256 * 1024); | |
74 | if (!firmware) | |
75 | goto out; | |
76 | ||
77 | sr_info("Uploading firmware '%s'.", name); | |
78 | ||
79 | if (libusb_open(dev, &hdl) != 0) | |
80 | goto out; | |
81 | ||
82 | while ((fw_offset + FW_HEADER_SIZE) <= fw_size) { | |
83 | part_size = GUINT16_FROM_LE(*(uint16_t*)(firmware + fw_offset)); | |
84 | part_address = GUINT32_FROM_LE(*(uint32_t*)(firmware + fw_offset + 2)); | |
85 | part_final = *(uint8_t*)(firmware + fw_offset + 6); | |
86 | if (part_size > FW_MAX_PART_SIZE) { | |
87 | sr_err("Part too large (%d).", part_size); | |
88 | goto out; | |
89 | } | |
90 | fw_offset += FW_HEADER_SIZE; | |
91 | if ((fw_offset + part_size) > fw_size) { | |
92 | sr_err("Truncated firmware file."); | |
93 | goto out; | |
94 | } | |
95 | ret = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR | | |
96 | LIBUSB_ENDPOINT_OUT, 0xa0, | |
97 | part_address & 0xffff, part_address >> 16, | |
98 | firmware + fw_offset, part_size, | |
99 | 100); | |
100 | if (ret < 0) { | |
101 | sr_err("Unable to send firmware to device: %s.", | |
102 | libusb_error_name(ret)); | |
103 | ret = SR_ERR; | |
104 | goto out; | |
105 | } | |
106 | if (part_size) | |
107 | sr_spew("Uploaded %d bytes.", part_size); | |
108 | else | |
109 | sr_info("Started firmware at 0x%x.", part_address); | |
110 | fw_offset += part_size; | |
111 | } | |
112 | ||
113 | if ((!part_final) || (part_size != 0)) { | |
114 | sr_err("Missing final part."); | |
115 | goto out; | |
116 | } | |
117 | ||
118 | ret = SR_OK; | |
119 | ||
120 | sr_info("Firmware upload done."); | |
121 | ||
122 | out: | |
123 | if (hdl) | |
124 | libusb_close(hdl); | |
125 | ||
126 | g_free(firmware); | |
127 | ||
128 | return ret; | |
129 | } | |
130 | ||
131 | static gboolean scan_firmware(libusb_device *dev) | |
132 | { | |
133 | struct libusb_device_descriptor des; | |
134 | struct libusb_device_handle *hdl; | |
135 | gboolean ret; | |
136 | unsigned char strdesc[64]; | |
137 | ||
138 | hdl = NULL; | |
139 | ret = FALSE; | |
140 | ||
141 | libusb_get_device_descriptor(dev, &des); | |
142 | ||
143 | if (libusb_open(dev, &hdl) != 0) | |
144 | goto out; | |
145 | ||
146 | if (libusb_get_string_descriptor_ascii(hdl, | |
147 | des.iManufacturer, strdesc, sizeof(strdesc)) < 0) | |
148 | goto out; | |
149 | if (strcmp((const char *)strdesc, "Saleae")) | |
150 | goto out; | |
151 | ||
152 | if (libusb_get_string_descriptor_ascii(hdl, | |
153 | des.iProduct, strdesc, sizeof(strdesc)) < 0) | |
154 | goto out; | |
155 | if (strcmp((const char *)strdesc, "Logic Pro")) | |
156 | goto out; | |
157 | ||
158 | ret = TRUE; | |
159 | ||
160 | out: | |
161 | if (hdl) | |
162 | libusb_close(hdl); | |
163 | ||
164 | return ret; | |
165 | } | |
166 | ||
167 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
168 | { | |
169 | struct drv_context *drvc; | |
170 | struct dev_context *devc; | |
171 | struct sr_dev_inst *sdi; | |
172 | GSList *devices, *conn_devices; | |
173 | libusb_device **devlist; | |
174 | struct libusb_device_descriptor des; | |
175 | const char *conn; | |
176 | char connection_id[64]; | |
177 | gboolean fw_loaded = FALSE; | |
178 | ||
179 | devices = NULL; | |
180 | conn_devices = NULL; | |
181 | drvc = di->context; | |
182 | drvc->instances = NULL; | |
183 | ||
184 | conn = NULL; | |
185 | for (GSList *l = options; l; l = l->next) { | |
186 | struct sr_config *src = l->data; | |
187 | ||
188 | switch (src->key) { | |
189 | case SR_CONF_CONN: | |
190 | conn = g_variant_get_string(src->data, NULL); | |
191 | break; | |
192 | } | |
193 | } | |
194 | ||
195 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
196 | for (unsigned int i = 0; devlist[i]; i++) { | |
197 | libusb_get_device_descriptor(devlist[i], &des); | |
198 | ||
199 | if (des.idVendor != 0x21a9 || des.idProduct != 0x1006) | |
200 | continue; | |
201 | ||
202 | if (!scan_firmware(devlist[i])) { | |
203 | const char *fwname; | |
204 | sr_info("Found a Logic Pro 16 device (no firmware loaded)."); | |
205 | fwname = "saleae-logicpro16-fx3.fw"; | |
206 | if (upload_firmware(drvc->sr_ctx, devlist[i], | |
207 | fwname) != SR_OK) { | |
208 | sr_err("Firmware upload failed, name %s.", fwname); | |
209 | continue; | |
210 | }; | |
211 | fw_loaded = TRUE; | |
212 | } | |
213 | ||
214 | } | |
215 | if (fw_loaded) { | |
216 | /* Give the device some time to come back and scan again */ | |
217 | libusb_free_device_list(devlist, 1); | |
218 | g_usleep(500 * 1000); | |
219 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
220 | } | |
221 | if (conn) | |
222 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
223 | for (unsigned int i = 0; devlist[i]; i++) { | |
224 | if (conn_devices) { | |
225 | struct sr_usb_dev_inst *usb = NULL; | |
226 | GSList *l; | |
227 | ||
228 | for (l = conn_devices; l; l = l->next) { | |
229 | usb = l->data; | |
230 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
231 | && usb->address == libusb_get_device_address(devlist[i])) | |
232 | break; | |
233 | } | |
234 | if (!l) | |
235 | /* This device matched none of the ones that | |
236 | * matched the conn specification. */ | |
237 | continue; | |
238 | } | |
239 | ||
240 | libusb_get_device_descriptor(devlist[i], &des); | |
241 | ||
242 | if (des.idVendor != 0x21a9 || des.idProduct != 0x1006) | |
243 | continue; | |
244 | ||
245 | if (usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)) < 0) | |
246 | continue; | |
247 | ||
248 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
249 | sdi->status = SR_ST_INITIALIZING; | |
250 | sdi->vendor = g_strdup("Saleae"); | |
251 | sdi->model = g_strdup("Logic Pro 16"); | |
252 | sdi->connection_id = g_strdup(connection_id); | |
253 | ||
254 | for (unsigned int j = 0; j < ARRAY_SIZE(channel_names); j++) | |
255 | sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE, | |
256 | channel_names[j]); | |
257 | ||
258 | sr_dbg("Found a Logic Pro 16 device."); | |
259 | sdi->status = SR_ST_INACTIVE; | |
260 | sdi->inst_type = SR_INST_USB; | |
261 | sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]), | |
262 | libusb_get_device_address(devlist[i]), NULL); | |
263 | ||
264 | devc = g_malloc0(sizeof(struct dev_context)); | |
265 | sdi->priv = devc; | |
266 | devices = g_slist_append(devices, sdi); | |
267 | ||
268 | } | |
269 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); | |
270 | libusb_free_device_list(devlist, 1); | |
271 | ||
272 | return std_scan_complete(di, devices); | |
273 | } | |
274 | ||
275 | static int dev_open(struct sr_dev_inst *sdi) | |
276 | { | |
277 | struct sr_dev_driver *di = sdi->driver; | |
278 | struct drv_context *drvc = di->context; | |
279 | struct dev_context *devc = sdi->priv; | |
280 | struct sr_usb_dev_inst *usb = sdi->conn; | |
281 | int ret; | |
282 | ||
283 | if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK) | |
284 | return SR_ERR; | |
285 | ||
286 | if ((ret = libusb_claim_interface(usb->devhdl, 0))) { | |
287 | sr_err("Failed to claim interface: %s.", libusb_error_name(ret)); | |
288 | return SR_ERR; | |
289 | } | |
290 | ||
291 | /* Configure default samplerate. */ | |
292 | if (devc->dig_samplerate == 0) | |
293 | devc->dig_samplerate = samplerates[3]; | |
294 | ||
295 | return saleae_logic_pro_init(sdi); | |
296 | } | |
297 | ||
298 | static int dev_close(struct sr_dev_inst *sdi) | |
299 | { | |
300 | sr_usb_close(sdi->conn); | |
301 | ||
302 | return SR_OK; | |
303 | } | |
304 | ||
305 | static int config_get(uint32_t key, GVariant **data, | |
306 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
307 | { | |
308 | struct sr_usb_dev_inst *usb; | |
309 | struct dev_context *devc; | |
310 | ||
311 | (void)cg; | |
312 | ||
313 | switch (key) { | |
314 | case SR_CONF_CONN: | |
315 | if (!sdi || !sdi->conn) | |
316 | return SR_ERR_ARG; | |
317 | usb = sdi->conn; | |
318 | *data = g_variant_new_printf("%d.%d", usb->bus, usb->address); | |
319 | break; | |
320 | case SR_CONF_SAMPLERATE: | |
321 | if (!sdi) | |
322 | return SR_ERR; | |
323 | devc = sdi->priv; | |
324 | *data = g_variant_new_uint64(devc->dig_samplerate); | |
325 | break; | |
326 | default: | |
327 | return SR_ERR_NA; | |
328 | } | |
329 | ||
330 | return SR_OK; | |
331 | } | |
332 | ||
333 | static int config_set(uint32_t key, GVariant *data, | |
334 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
335 | { | |
336 | struct dev_context *devc; | |
337 | ||
338 | (void)cg; | |
339 | ||
340 | devc = sdi->priv; | |
341 | ||
342 | switch (key) { | |
343 | case SR_CONF_SAMPLERATE: | |
344 | devc->dig_samplerate = g_variant_get_uint64(data); | |
345 | break; | |
346 | default: | |
347 | return SR_ERR_NA; | |
348 | } | |
349 | ||
350 | return SR_OK; | |
351 | } | |
352 | ||
353 | static int config_list(uint32_t key, GVariant **data, | |
354 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
355 | { | |
356 | switch (key) { | |
357 | case SR_CONF_SCAN_OPTIONS: | |
358 | case SR_CONF_DEVICE_OPTIONS: | |
359 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
360 | case SR_CONF_SAMPLERATE: | |
361 | *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates)); | |
362 | break; | |
363 | default: | |
364 | return SR_ERR_NA; | |
365 | } | |
366 | ||
367 | return SR_OK; | |
368 | } | |
369 | ||
370 | static void dev_acquisition_abort(const struct sr_dev_inst *sdi) | |
371 | { | |
372 | struct dev_context *devc = sdi->priv; | |
373 | unsigned int i; | |
374 | ||
375 | for (i = 0; i < devc->num_transfers; i++) { | |
376 | if (devc->transfers[i]) | |
377 | libusb_cancel_transfer(devc->transfers[i]); | |
378 | } | |
379 | } | |
380 | ||
381 | static int dev_acquisition_handle(int fd, int revents, void *cb_data) | |
382 | { | |
383 | struct sr_dev_inst *sdi = cb_data; | |
384 | struct drv_context *drvc = sdi->driver->context; | |
385 | struct timeval tv = ALL_ZERO; | |
386 | ||
387 | (void)fd; | |
388 | ||
389 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
390 | ||
391 | /* Handle timeout */ | |
392 | if (!revents) | |
393 | sr_dev_acquisition_stop(sdi); | |
394 | ||
395 | return TRUE; | |
396 | } | |
397 | ||
398 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
399 | { | |
400 | struct dev_context *devc = sdi->priv; | |
401 | struct drv_context *drvc = sdi->driver->context; | |
402 | struct libusb_transfer *transfer; | |
403 | struct sr_usb_dev_inst *usb; | |
404 | uint8_t *buf; | |
405 | unsigned int i, ret; | |
406 | ||
407 | ret = saleae_logic_pro_prepare(sdi); | |
408 | if (ret != SR_OK) | |
409 | return ret; | |
410 | ||
411 | usb = sdi->conn; | |
412 | ||
413 | devc->conv_buffer = g_malloc(CONV_BUFFER_SIZE); | |
414 | ||
415 | devc->num_transfers = BUF_COUNT; | |
416 | devc->transfers = g_malloc0(sizeof(*devc->transfers) * BUF_COUNT); | |
417 | for (i = 0; i < devc->num_transfers; i++) { | |
418 | buf = g_malloc(BUF_SIZE); | |
419 | transfer = libusb_alloc_transfer(0); | |
420 | libusb_fill_bulk_transfer(transfer, usb->devhdl, | |
421 | 2 | LIBUSB_ENDPOINT_IN, buf, BUF_SIZE, | |
422 | saleae_logic_pro_receive_data, (void *)sdi, 0); | |
423 | if ((ret = libusb_submit_transfer(transfer)) != 0) { | |
424 | sr_err("Failed to submit transfer: %s.", | |
425 | libusb_error_name(ret)); | |
426 | libusb_free_transfer(transfer); | |
427 | g_free(buf); | |
428 | dev_acquisition_abort(sdi); | |
429 | return SR_ERR; | |
430 | } | |
431 | devc->transfers[i] = transfer; | |
432 | devc->submitted_transfers++; | |
433 | } | |
434 | ||
435 | usb_source_add(sdi->session, drvc->sr_ctx, BUF_TIMEOUT, dev_acquisition_handle, (void *)sdi); | |
436 | ||
437 | std_session_send_df_header(sdi); | |
438 | ||
439 | saleae_logic_pro_start(sdi); | |
440 | if (ret != SR_OK) | |
441 | return ret; | |
442 | ||
443 | return SR_OK; | |
444 | } | |
445 | ||
446 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
447 | { | |
448 | struct dev_context *devc = sdi->priv; | |
449 | struct drv_context *drvc = sdi->driver->context; | |
450 | ||
451 | saleae_logic_pro_stop(sdi); | |
452 | ||
453 | std_session_send_df_end(sdi); | |
454 | ||
455 | usb_source_remove(sdi->session, drvc->sr_ctx); | |
456 | ||
457 | g_free(devc->conv_buffer); | |
458 | ||
459 | return SR_OK; | |
460 | } | |
461 | ||
462 | SR_PRIV struct sr_dev_driver saleae_logic_pro_driver_info = { | |
463 | .name = "saleae-logic-pro", | |
464 | .longname = "Saleae Logic Pro", | |
465 | .api_version = 1, | |
466 | .init = std_init, | |
467 | .cleanup = std_cleanup, | |
468 | .scan = scan, | |
469 | .dev_list = std_dev_list, | |
470 | .dev_clear = std_dev_clear, | |
471 | .config_get = config_get, | |
472 | .config_set = config_set, | |
473 | .config_list = config_list, | |
474 | .dev_open = dev_open, | |
475 | .dev_close = dev_close, | |
476 | .dev_acquisition_start = dev_acquisition_start, | |
477 | .dev_acquisition_stop = dev_acquisition_stop, | |
478 | .context = NULL, | |
479 | }; | |
480 | ||
481 | SR_REGISTER_DEV_DRIVER(saleae_logic_pro_driver_info); |