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aeaad0b0 DE |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2014 Daniel Elstner <daniel.kitta@gmail.com> | |
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 | ||
6ec6c43b | 20 | #include <config.h> |
5874e88d DE |
21 | #include <glib.h> |
22 | #include <libusb.h> | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
c1aae900 | 25 | #include <libsigrok/libsigrok.h> |
407b6e2c | 26 | #include <libsigrok-internal.h> |
515ab088 | 27 | #include "protocol.h" |
5874e88d | 28 | |
be64f90b DE |
29 | /* Supported device scan options. |
30 | */ | |
a0e0bb41 | 31 | static const uint32_t scanopts[] = { |
99c76642 DE |
32 | SR_CONF_CONN, |
33 | }; | |
34 | ||
be64f90b DE |
35 | /* Driver capabilities. |
36 | */ | |
37 | static const uint32_t drvopts[] = { | |
5874e88d | 38 | SR_CONF_LOGIC_ANALYZER, |
5874e88d DE |
39 | }; |
40 | ||
be64f90b DE |
41 | /* Supported trigger match conditions. |
42 | */ | |
bbe7e48a BV |
43 | static const int32_t trigger_matches[] = { |
44 | SR_TRIGGER_ZERO, | |
45 | SR_TRIGGER_ONE, | |
46 | SR_TRIGGER_RISING, | |
47 | SR_TRIGGER_FALLING, | |
48 | }; | |
49 | ||
be64f90b | 50 | /* Names assigned to available trigger sources. |
5874e88d | 51 | */ |
be64f90b DE |
52 | static const char *const trigger_source_names[] = { |
53 | [TRIGGER_CHANNELS] = "CH", | |
54 | [TRIGGER_EXT_TRG] = "TRG", | |
5874e88d | 55 | }; |
aeaad0b0 | 56 | |
be64f90b | 57 | /* Names assigned to available edge slope choices. |
e6e54bd2 | 58 | */ |
be64f90b DE |
59 | static const char *const signal_edge_names[] = { |
60 | [EDGE_POSITIVE] = "r", | |
61 | [EDGE_NEGATIVE] = "f", | |
62 | }; | |
e6e54bd2 | 63 | |
be64f90b | 64 | /* Initialize the SysClk LWLA driver. |
e6e54bd2 | 65 | */ |
4f840ce9 | 66 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) |
aeaad0b0 DE |
67 | { |
68 | return std_init(sr_ctx, di, LOG_PREFIX); | |
69 | } | |
70 | ||
be64f90b DE |
71 | /* Create a new sigrok device instance for the indicated LWLA model. |
72 | */ | |
73 | static struct sr_dev_inst *dev_inst_new(const struct model_info *model) | |
43db3436 DE |
74 | { |
75 | struct sr_dev_inst *sdi; | |
76 | struct dev_context *devc; | |
5e23fcab ML |
77 | int i; |
78 | char name[8]; | |
43db3436 | 79 | |
be64f90b | 80 | /* Initialize private device context. */ |
f57d8ffe | 81 | devc = g_malloc0(sizeof(struct dev_context)); |
be64f90b DE |
82 | devc->model = model; |
83 | devc->active_fpga_config = FPGA_NOCONF; | |
84 | devc->cfg_rle = TRUE; | |
85 | devc->samplerate = model->samplerates[0]; | |
86 | devc->channel_mask = (UINT64_C(1) << model->num_channels) - 1; | |
43db3436 | 87 | |
be64f90b | 88 | /* Create sigrok device instance. */ |
aac29cc1 | 89 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be UH |
90 | sdi->status = SR_ST_INACTIVE; |
91 | sdi->vendor = g_strdup(VENDOR_NAME); | |
be64f90b | 92 | sdi->model = g_strdup(model->name); |
43db3436 | 93 | sdi->priv = devc; |
be64f90b DE |
94 | |
95 | /* Generate list of logic channels. */ | |
96 | for (i = 0; i < model->num_channels; i++) { | |
5e23fcab | 97 | /* The LWLA series simply number channels from CH1 to CHxx. */ |
fe473123 DE |
98 | g_snprintf(name, sizeof(name), "CH%d", i + 1); |
99 | sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, name); | |
5e23fcab | 100 | } |
43db3436 DE |
101 | |
102 | return sdi; | |
103 | } | |
104 | ||
be64f90b DE |
105 | /* Create a new device instance for a libusb device if it is a SysClk LWLA |
106 | * device and also matches the connection specification. | |
107 | */ | |
108 | static struct sr_dev_inst *dev_inst_new_matching(GSList *conn_matches, | |
109 | libusb_device *dev) | |
110 | { | |
111 | GSList *node; | |
112 | struct sr_usb_dev_inst *usb; | |
113 | const struct model_info *model; | |
114 | struct sr_dev_inst *sdi; | |
115 | struct libusb_device_descriptor des; | |
116 | int bus, address; | |
117 | unsigned int vid, pid; | |
118 | int ret; | |
119 | ||
120 | bus = libusb_get_bus_number(dev); | |
121 | address = libusb_get_device_address(dev); | |
122 | ||
123 | for (node = conn_matches; node != NULL; node = node->next) { | |
124 | usb = node->data; | |
125 | if (usb && usb->bus == bus && usb->address == address) | |
126 | break; /* found */ | |
127 | } | |
128 | if (conn_matches && !node) | |
129 | return NULL; /* no match */ | |
130 | ||
131 | ret = libusb_get_device_descriptor(dev, &des); | |
132 | if (ret != 0) { | |
133 | sr_err("Failed to get USB device descriptor: %s.", | |
134 | libusb_error_name(ret)); | |
135 | return NULL; | |
136 | } | |
137 | vid = des.idVendor; | |
138 | pid = des.idProduct; | |
139 | ||
140 | /* Create sigrok device instance. */ | |
141 | if (vid == USB_VID_SYSCLK && pid == USB_PID_LWLA1016) { | |
142 | model = &lwla1016_info; | |
143 | } else if (vid == USB_VID_SYSCLK && pid == USB_PID_LWLA1034) { | |
144 | model = &lwla1034_info; | |
145 | } else { | |
146 | if (conn_matches) | |
147 | sr_warn("USB device %d.%d (%04x:%04x) is not a" | |
148 | " SysClk LWLA.", bus, address, vid, pid); | |
149 | return NULL; | |
150 | } | |
151 | sdi = dev_inst_new(model); | |
152 | ||
153 | sdi->inst_type = SR_INST_USB; | |
154 | sdi->conn = sr_usb_dev_inst_new(bus, address, NULL); | |
155 | ||
156 | return sdi; | |
157 | } | |
158 | ||
159 | /* Scan for SysClk LWLA devices and create a device instance for each one. | |
160 | */ | |
4f840ce9 | 161 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
aeaad0b0 | 162 | { |
be64f90b | 163 | GSList *conn_devices, *devices, *node; |
aeaad0b0 | 164 | struct drv_context *drvc; |
5874e88d | 165 | struct sr_dev_inst *sdi; |
7ebe9b9e DE |
166 | struct sr_config *src; |
167 | const char *conn; | |
be64f90b DE |
168 | libusb_device **devlist; |
169 | ssize_t num_devs, i; | |
aeaad0b0 | 170 | |
41812aca | 171 | drvc = di->context; |
be64f90b DE |
172 | conn = NULL; |
173 | conn_devices = NULL; | |
174 | devices = NULL; | |
5874e88d | 175 | |
7ebe9b9e DE |
176 | for (node = options; node != NULL; node = node->next) { |
177 | src = node->data; | |
178 | if (src->key == SR_CONF_CONN) { | |
179 | conn = g_variant_get_string(src->data, NULL); | |
180 | break; | |
181 | } | |
182 | } | |
be64f90b DE |
183 | if (conn) { |
184 | /* Find devices matching the connection specification. */ | |
185 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
186 | } | |
5874e88d | 187 | |
be64f90b DE |
188 | /* List all libusb devices. */ |
189 | num_devs = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
190 | if (num_devs < 0) { | |
191 | sr_err("Failed to list USB devices: %s.", | |
192 | libusb_error_name(num_devs)); | |
193 | g_slist_free_full(conn_devices, | |
194 | (GDestroyNotify)&sr_usb_dev_inst_free); | |
195 | return NULL; | |
196 | } | |
5874e88d | 197 | |
be64f90b DE |
198 | /* Scan the USB device list for matching LWLA devices. */ |
199 | for (i = 0; i < num_devs; i++) { | |
200 | sdi = dev_inst_new_matching(conn_devices, devlist[i]); | |
201 | if (!sdi) | |
202 | continue; /* no match */ | |
5874e88d | 203 | |
43db3436 | 204 | /* Register device instance with driver. */ |
be64f90b | 205 | sdi->driver = di; |
5874e88d DE |
206 | drvc->instances = g_slist_append(drvc->instances, sdi); |
207 | devices = g_slist_append(devices, sdi); | |
208 | } | |
aeaad0b0 | 209 | |
be64f90b DE |
210 | libusb_free_device_list(devlist, 1); |
211 | g_slist_free_full(conn_devices, (GDestroyNotify)&sr_usb_dev_inst_free); | |
aeaad0b0 DE |
212 | |
213 | return devices; | |
214 | } | |
215 | ||
be64f90b DE |
216 | /* Return the list of devices found during scan. |
217 | */ | |
4f840ce9 | 218 | static GSList *dev_list(const struct sr_dev_driver *di) |
aeaad0b0 | 219 | { |
5874e88d DE |
220 | struct drv_context *drvc; |
221 | ||
41812aca | 222 | drvc = di->context; |
5874e88d DE |
223 | |
224 | return drvc->instances; | |
225 | } | |
226 | ||
be64f90b DE |
227 | /* Destroy the private device context. |
228 | */ | |
5874e88d DE |
229 | static void clear_dev_context(void *priv) |
230 | { | |
231 | struct dev_context *devc; | |
232 | ||
233 | devc = priv; | |
234 | ||
be64f90b DE |
235 | if (devc->acquisition) { |
236 | sr_err("Cannot clear device context during acquisition!"); | |
237 | return; /* leak and pray */ | |
238 | } | |
5874e88d DE |
239 | sr_dbg("Device context cleared."); |
240 | ||
5874e88d | 241 | g_free(devc); |
aeaad0b0 DE |
242 | } |
243 | ||
be64f90b DE |
244 | /* Destroy all device instances. |
245 | */ | |
4f840ce9 | 246 | static int dev_clear(const struct sr_dev_driver *di) |
aeaad0b0 | 247 | { |
5874e88d | 248 | return std_dev_clear(di, &clear_dev_context); |
aeaad0b0 DE |
249 | } |
250 | ||
93ed0241 DE |
251 | /* Drain any pending data from the USB transfer buffers on the device. |
252 | * This may be necessary e.g. after a crash or generally to clean up after | |
253 | * an abnormal condition. | |
254 | */ | |
255 | static int drain_usb(struct sr_usb_dev_inst *usb, unsigned int endpoint) | |
256 | { | |
257 | int drained, xfer_len; | |
258 | int ret; | |
259 | unsigned char buf[512]; | |
260 | ||
261 | const unsigned int drain_timeout_ms = 10; | |
262 | ||
263 | drained = 0; | |
264 | do { | |
265 | xfer_len = 0; | |
266 | ret = libusb_bulk_transfer(usb->devhdl, endpoint, | |
b3cfc6e9 | 267 | buf, sizeof(buf), &xfer_len, |
93ed0241 DE |
268 | drain_timeout_ms); |
269 | drained += xfer_len; | |
270 | } while (ret == LIBUSB_SUCCESS && xfer_len != 0); | |
271 | ||
272 | if (ret != LIBUSB_SUCCESS && ret != LIBUSB_ERROR_TIMEOUT) { | |
273 | sr_err("Failed to drain USB endpoint %u: %s.", | |
274 | endpoint & (LIBUSB_ENDPOINT_IN - 1), | |
275 | libusb_error_name(ret)); | |
276 | return SR_ERR; | |
277 | } | |
278 | if (drained > 0) { | |
279 | sr_warn("Drained %d bytes from USB endpoint %u.", | |
280 | drained, endpoint & (LIBUSB_ENDPOINT_IN - 1)); | |
281 | } | |
282 | return SR_OK; | |
283 | } | |
284 | ||
be64f90b DE |
285 | /* Open and initialize device. |
286 | */ | |
aeaad0b0 DE |
287 | static int dev_open(struct sr_dev_inst *sdi) |
288 | { | |
5874e88d | 289 | struct drv_context *drvc; |
be64f90b | 290 | struct dev_context *devc; |
5874e88d | 291 | struct sr_usb_dev_inst *usb; |
e35a4592 | 292 | int i; |
5874e88d | 293 | int ret; |
aeaad0b0 | 294 | |
ce19d4c6 | 295 | drvc = sdi->driver->context; |
be64f90b DE |
296 | devc = sdi->priv; |
297 | usb = sdi->conn; | |
aeaad0b0 | 298 | |
5874e88d DE |
299 | if (!drvc) { |
300 | sr_err("Driver was not initialized."); | |
301 | return SR_ERR; | |
302 | } | |
c81069b3 DE |
303 | if (sdi->status != SR_ST_INACTIVE) { |
304 | sr_err("Device already open."); | |
305 | return SR_ERR; | |
306 | } | |
5874e88d | 307 | |
e35a4592 DE |
308 | /* Try the whole shebang three times, fingers crossed. */ |
309 | for (i = 0; i < 3; i++) { | |
310 | ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb); | |
311 | if (ret != SR_OK) | |
312 | return ret; | |
313 | ||
314 | ret = libusb_set_configuration(usb->devhdl, USB_CONFIG); | |
315 | if (ret != LIBUSB_SUCCESS) { | |
316 | sr_err("Failed to set USB configuration: %s.", | |
317 | libusb_error_name(ret)); | |
318 | sr_usb_close(usb); | |
319 | return SR_ERR; | |
320 | } | |
ad6181e2 | 321 | |
e35a4592 DE |
322 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); |
323 | if (ret != LIBUSB_SUCCESS) { | |
324 | sr_err("Failed to claim interface: %s.", | |
325 | libusb_error_name(ret)); | |
326 | sr_usb_close(usb); | |
327 | return SR_ERR; | |
328 | } | |
be64f90b | 329 | |
e35a4592 DE |
330 | ret = drain_usb(usb, EP_REPLY); |
331 | if (ret != SR_OK) { | |
332 | sr_usb_close(usb); | |
333 | return ret; | |
334 | } | |
335 | /* This delay appears to be necessary for reliable operation. */ | |
336 | g_usleep(30 * 1000); | |
93ed0241 | 337 | |
e35a4592 | 338 | sdi->status = SR_ST_ACTIVE; |
5874e88d | 339 | |
e35a4592 DE |
340 | devc->active_fpga_config = FPGA_NOCONF; |
341 | devc->short_transfer_quirk = FALSE; | |
342 | devc->state = STATE_IDLE; | |
be64f90b | 343 | |
e35a4592 | 344 | ret = (*devc->model->apply_fpga_config)(sdi); |
be64f90b | 345 | |
e35a4592 DE |
346 | if (ret == SR_OK) |
347 | ret = (*devc->model->device_init_check)(sdi); | |
348 | if (ret == SR_OK) | |
349 | break; | |
be64f90b | 350 | |
e35a4592 | 351 | /* Rinse and repeat. */ |
c81069b3 | 352 | sdi->status = SR_ST_INACTIVE; |
be64f90b | 353 | sr_usb_close(usb); |
c81069b3 | 354 | } |
e35a4592 DE |
355 | |
356 | if (ret == SR_OK && devc->short_transfer_quirk) | |
78648577 DE |
357 | sr_warn("Short transfer quirk detected! " |
358 | "Memory reads will be slow."); | |
e35a4592 | 359 | return ret; |
aeaad0b0 DE |
360 | } |
361 | ||
be64f90b DE |
362 | /* Shutdown and close device. |
363 | */ | |
aeaad0b0 DE |
364 | static int dev_close(struct sr_dev_inst *sdi) |
365 | { | |
be64f90b | 366 | struct drv_context *drvc; |
c81069b3 | 367 | struct dev_context *devc; |
be64f90b | 368 | struct sr_usb_dev_inst *usb; |
c81069b3 | 369 | int ret; |
5874e88d | 370 | |
be64f90b DE |
371 | drvc = sdi->driver->context; |
372 | devc = sdi->priv; | |
373 | usb = sdi->conn; | |
374 | ||
375 | if (!drvc) { | |
5874e88d DE |
376 | sr_err("Driver was not initialized."); |
377 | return SR_ERR; | |
378 | } | |
be64f90b DE |
379 | if (sdi->status == SR_ST_INACTIVE) { |
380 | sr_dbg("Device already closed."); | |
5874e88d | 381 | return SR_OK; |
c81069b3 | 382 | } |
be64f90b DE |
383 | if (devc->acquisition) { |
384 | sr_err("Cannot close device during acquisition!"); | |
385 | /* Request stop, leak handle, and prepare for the worst. */ | |
386 | devc->cancel_requested = TRUE; | |
387 | return SR_ERR_BUG; | |
388 | } | |
389 | ||
6358f0a9 | 390 | sdi->status = SR_ST_INACTIVE; |
5874e88d | 391 | |
be64f90b DE |
392 | /* Download of the shutdown bitstream, if any. */ |
393 | ret = (*devc->model->apply_fpga_config)(sdi); | |
c81069b3 | 394 | if (ret != SR_OK) |
be64f90b | 395 | sr_warn("Unable to shut down device."); |
5874e88d DE |
396 | |
397 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
c81069b3 | 398 | sr_usb_close(usb); |
5874e88d | 399 | |
c81069b3 | 400 | return ret; |
aeaad0b0 DE |
401 | } |
402 | ||
be64f90b DE |
403 | /* Check whether the device options contain a specific key. |
404 | * Also match against get/set/list bits if specified. | |
405 | */ | |
406 | static int has_devopt(const struct model_info *model, uint32_t key) | |
aeaad0b0 | 407 | { |
be64f90b DE |
408 | unsigned int i; |
409 | ||
410 | for (i = 0; i < model->num_devopts; i++) { | |
411 | if ((model->devopts[i] & (SR_CONF_MASK | key)) == key) | |
412 | return TRUE; | |
413 | } | |
414 | return FALSE; | |
aeaad0b0 DE |
415 | } |
416 | ||
be64f90b DE |
417 | /* Read device configuration setting. |
418 | */ | |
584560f1 | 419 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 420 | const struct sr_channel_group *cg) |
aeaad0b0 | 421 | { |
5874e88d | 422 | struct dev_context *devc; |
7ed80817 | 423 | unsigned int idx; |
aeaad0b0 | 424 | |
53b4680f | 425 | (void)cg; |
aeaad0b0 | 426 | |
5874e88d DE |
427 | if (!sdi) |
428 | return SR_ERR_ARG; | |
429 | ||
430 | devc = sdi->priv; | |
431 | ||
be64f90b DE |
432 | if (!has_devopt(devc->model, key | SR_CONF_GET)) |
433 | return SR_ERR_NA; | |
434 | ||
aeaad0b0 | 435 | switch (key) { |
5874e88d DE |
436 | case SR_CONF_SAMPLERATE: |
437 | *data = g_variant_new_uint64(devc->samplerate); | |
438 | break; | |
29d58767 DE |
439 | case SR_CONF_LIMIT_MSEC: |
440 | *data = g_variant_new_uint64(devc->limit_msec); | |
441 | break; | |
5874e88d DE |
442 | case SR_CONF_LIMIT_SAMPLES: |
443 | *data = g_variant_new_uint64(devc->limit_samples); | |
444 | break; | |
be64f90b DE |
445 | case SR_CONF_RLE: |
446 | *data = g_variant_new_boolean(devc->cfg_rle); | |
447 | break; | |
5874e88d | 448 | case SR_CONF_EXTERNAL_CLOCK: |
6358f0a9 DE |
449 | *data = g_variant_new_boolean(devc->cfg_clock_source |
450 | == CLOCK_EXT_CLK); | |
451 | break; | |
452 | case SR_CONF_CLOCK_EDGE: | |
453 | idx = devc->cfg_clock_edge; | |
ce3ecb70 | 454 | if (idx >= ARRAY_SIZE(signal_edge_names)) |
6358f0a9 DE |
455 | return SR_ERR_BUG; |
456 | *data = g_variant_new_string(signal_edge_names[idx]); | |
5874e88d | 457 | break; |
e6e54bd2 DE |
458 | case SR_CONF_TRIGGER_SOURCE: |
459 | idx = devc->cfg_trigger_source; | |
ce3ecb70 | 460 | if (idx >= ARRAY_SIZE(trigger_source_names)) |
e6e54bd2 DE |
461 | return SR_ERR_BUG; |
462 | *data = g_variant_new_string(trigger_source_names[idx]); | |
463 | break; | |
464 | case SR_CONF_TRIGGER_SLOPE: | |
465 | idx = devc->cfg_trigger_slope; | |
ce3ecb70 | 466 | if (idx >= ARRAY_SIZE(signal_edge_names)) |
e6e54bd2 | 467 | return SR_ERR_BUG; |
6358f0a9 | 468 | *data = g_variant_new_string(signal_edge_names[idx]); |
e6e54bd2 | 469 | break; |
aeaad0b0 | 470 | default: |
be64f90b DE |
471 | /* Must not happen for a key listed in devopts. */ |
472 | return SR_ERR_BUG; | |
aeaad0b0 DE |
473 | } |
474 | ||
5874e88d | 475 | return SR_OK; |
aeaad0b0 DE |
476 | } |
477 | ||
e6e54bd2 DE |
478 | /* Helper for mapping a string-typed configuration value to an index |
479 | * within a table of possible values. | |
480 | */ | |
481 | static int lookup_index(GVariant *value, const char *const *table, int len) | |
482 | { | |
483 | const char *entry; | |
484 | int i; | |
485 | ||
486 | entry = g_variant_get_string(value, NULL); | |
487 | if (!entry) | |
488 | return -1; | |
489 | ||
490 | /* Linear search is fine for very small tables. */ | |
0a1f7b09 | 491 | for (i = 0; i < len; i++) { |
e6e54bd2 DE |
492 | if (strcmp(entry, table[i]) == 0) |
493 | return i; | |
494 | } | |
495 | return -1; | |
496 | } | |
497 | ||
be64f90b DE |
498 | /* Write device configuration setting. |
499 | */ | |
584560f1 | 500 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 501 | const struct sr_channel_group *cg) |
aeaad0b0 | 502 | { |
29d58767 | 503 | uint64_t value; |
5874e88d | 504 | struct dev_context *devc; |
e6e54bd2 | 505 | int idx; |
aeaad0b0 | 506 | |
53b4680f | 507 | (void)cg; |
aeaad0b0 | 508 | |
be64f90b DE |
509 | if (!sdi) |
510 | return SR_ERR_ARG; | |
511 | ||
5874e88d | 512 | devc = sdi->priv; |
be64f90b DE |
513 | |
514 | if (!has_devopt(devc->model, key | SR_CONF_SET)) | |
515 | return SR_ERR_NA; | |
aeaad0b0 | 516 | |
aeaad0b0 | 517 | switch (key) { |
5874e88d | 518 | case SR_CONF_SAMPLERATE: |
29d58767 | 519 | value = g_variant_get_uint64(data); |
be64f90b DE |
520 | if (value < devc->model->samplerates[devc->model->num_samplerates - 1] |
521 | || value > devc->model->samplerates[0]) | |
5874e88d | 522 | return SR_ERR_SAMPLERATE; |
29d58767 DE |
523 | devc->samplerate = value; |
524 | break; | |
525 | case SR_CONF_LIMIT_MSEC: | |
526 | value = g_variant_get_uint64(data); | |
527 | if (value > MAX_LIMIT_MSEC) | |
528 | return SR_ERR_ARG; | |
529 | devc->limit_msec = value; | |
5874e88d DE |
530 | break; |
531 | case SR_CONF_LIMIT_SAMPLES: | |
29d58767 DE |
532 | value = g_variant_get_uint64(data); |
533 | if (value > MAX_LIMIT_SAMPLES) | |
534 | return SR_ERR_ARG; | |
535 | devc->limit_samples = value; | |
5874e88d | 536 | break; |
be64f90b DE |
537 | case SR_CONF_RLE: |
538 | devc->cfg_rle = g_variant_get_boolean(data); | |
539 | break; | |
5874e88d | 540 | case SR_CONF_EXTERNAL_CLOCK: |
6358f0a9 DE |
541 | devc->cfg_clock_source = (g_variant_get_boolean(data)) |
542 | ? CLOCK_EXT_CLK : CLOCK_INTERNAL; | |
543 | break; | |
544 | case SR_CONF_CLOCK_EDGE: | |
545 | idx = lookup_index(data, signal_edge_names, | |
ce3ecb70 | 546 | ARRAY_SIZE(signal_edge_names)); |
6358f0a9 DE |
547 | if (idx < 0) |
548 | return SR_ERR_ARG; | |
549 | devc->cfg_clock_edge = idx; | |
5874e88d | 550 | break; |
e6e54bd2 DE |
551 | case SR_CONF_TRIGGER_SOURCE: |
552 | idx = lookup_index(data, trigger_source_names, | |
ce3ecb70 | 553 | ARRAY_SIZE(trigger_source_names)); |
e6e54bd2 DE |
554 | if (idx < 0) |
555 | return SR_ERR_ARG; | |
556 | devc->cfg_trigger_source = idx; | |
557 | break; | |
558 | case SR_CONF_TRIGGER_SLOPE: | |
6358f0a9 | 559 | idx = lookup_index(data, signal_edge_names, |
ce3ecb70 | 560 | ARRAY_SIZE(signal_edge_names)); |
e6e54bd2 DE |
561 | if (idx < 0) |
562 | return SR_ERR_ARG; | |
563 | devc->cfg_trigger_slope = idx; | |
564 | break; | |
aeaad0b0 | 565 | default: |
be64f90b DE |
566 | /* Must not happen for a key listed in devopts. */ |
567 | return SR_ERR_BUG; | |
aeaad0b0 DE |
568 | } |
569 | ||
5874e88d | 570 | return SR_OK; |
aeaad0b0 DE |
571 | } |
572 | ||
be64f90b DE |
573 | /* Apply channel configuration change. |
574 | */ | |
f3ca73ed | 575 | static int config_channel_set(const struct sr_dev_inst *sdi, |
be64f90b | 576 | struct sr_channel *ch, unsigned int changes) |
43db3436 | 577 | { |
ba7dd8bb | 578 | uint64_t channel_bit; |
43db3436 DE |
579 | struct dev_context *devc; |
580 | ||
be64f90b DE |
581 | if (!sdi) |
582 | return SR_ERR_ARG; | |
583 | ||
43db3436 | 584 | devc = sdi->priv; |
43db3436 | 585 | |
be64f90b | 586 | if (ch->index < 0 || ch->index >= devc->model->num_channels) { |
ba7dd8bb | 587 | sr_err("Channel index %d out of range.", ch->index); |
43db3436 DE |
588 | return SR_ERR_BUG; |
589 | } | |
43db3436 | 590 | |
3f239f08 | 591 | if ((changes & SR_CHANNEL_SET_ENABLED) != 0) { |
be64f90b DE |
592 | channel_bit = UINT64_C(1) << ch->index; |
593 | ||
594 | /* Enable or disable logic input for this channel. */ | |
ba7dd8bb UH |
595 | if (ch->enabled) |
596 | devc->channel_mask |= channel_bit; | |
43db3436 | 597 | else |
ba7dd8bb | 598 | devc->channel_mask &= ~channel_bit; |
43db3436 DE |
599 | } |
600 | ||
43db3436 DE |
601 | return SR_OK; |
602 | } | |
603 | ||
be64f90b DE |
604 | /* Derive trigger masks from the session's trigger configuration. |
605 | */ | |
225d3cb0 DE |
606 | static int prepare_trigger_masks(const struct sr_dev_inst *sdi) |
607 | { | |
608 | uint64_t trigger_mask; | |
609 | uint64_t trigger_values; | |
610 | uint64_t trigger_edge_mask; | |
09ffac33 | 611 | uint64_t level_bit, type_bit; |
225d3cb0 DE |
612 | struct dev_context *devc; |
613 | struct sr_trigger *trigger; | |
614 | struct sr_trigger_stage *stage; | |
615 | struct sr_trigger_match *match; | |
616 | const GSList *node; | |
be64f90b | 617 | int idx; |
09ffac33 | 618 | enum sr_trigger_matches trg; |
225d3cb0 DE |
619 | |
620 | devc = sdi->priv; | |
621 | ||
622 | trigger = sr_session_trigger_get(sdi->session); | |
623 | if (!trigger || !trigger->stages) | |
624 | return SR_OK; | |
625 | ||
626 | if (trigger->stages->next) { | |
627 | sr_err("This device only supports 1 trigger stage."); | |
628 | return SR_ERR_ARG; | |
629 | } | |
630 | stage = trigger->stages->data; | |
631 | ||
632 | trigger_mask = 0; | |
633 | trigger_values = 0; | |
634 | trigger_edge_mask = 0; | |
635 | ||
636 | for (node = stage->matches; node; node = node->next) { | |
637 | match = node->data; | |
638 | ||
639 | if (!match->channel->enabled) | |
640 | continue; /* ignore disabled channel */ | |
641 | ||
be64f90b | 642 | idx = match->channel->index; |
09ffac33 | 643 | trg = match->match; |
be64f90b DE |
644 | |
645 | if (idx < 0 || idx >= devc->model->num_channels) { | |
646 | sr_err("Channel index %d out of range.", idx); | |
647 | return SR_ERR_BUG; /* should not happen */ | |
648 | } | |
09ffac33 DE |
649 | if (trg != SR_TRIGGER_ZERO |
650 | && trg != SR_TRIGGER_ONE | |
651 | && trg != SR_TRIGGER_RISING | |
652 | && trg != SR_TRIGGER_FALLING) { | |
be64f90b | 653 | sr_err("Unsupported trigger match for CH%d.", idx + 1); |
225d3cb0 DE |
654 | return SR_ERR_ARG; |
655 | } | |
09ffac33 DE |
656 | level_bit = (trg == SR_TRIGGER_ONE |
657 | || trg == SR_TRIGGER_RISING) ? 1 : 0; | |
658 | type_bit = (trg == SR_TRIGGER_RISING | |
659 | || trg == SR_TRIGGER_FALLING) ? 1 : 0; | |
660 | ||
661 | trigger_mask |= UINT64_C(1) << idx; | |
662 | trigger_values |= level_bit << idx; | |
663 | trigger_edge_mask |= type_bit << idx; | |
225d3cb0 DE |
664 | } |
665 | devc->trigger_mask = trigger_mask; | |
666 | devc->trigger_values = trigger_values; | |
667 | devc->trigger_edge_mask = trigger_edge_mask; | |
668 | ||
669 | return SR_OK; | |
670 | } | |
671 | ||
be64f90b DE |
672 | /* Apply current device configuration to the hardware. |
673 | */ | |
ee38c8ba DE |
674 | static int config_commit(const struct sr_dev_inst *sdi) |
675 | { | |
225d3cb0 | 676 | struct dev_context *devc; |
be64f90b DE |
677 | int ret; |
678 | ||
679 | devc = sdi->priv; | |
225d3cb0 DE |
680 | |
681 | if (sdi->status != SR_ST_ACTIVE) | |
682 | return SR_ERR_DEV_CLOSED; | |
683 | ||
225d3cb0 DE |
684 | if (devc->acquisition) { |
685 | sr_err("Acquisition still in progress?"); | |
ee38c8ba DE |
686 | return SR_ERR; |
687 | } | |
688 | ||
be64f90b DE |
689 | ret = prepare_trigger_masks(sdi); |
690 | if (ret != SR_OK) | |
691 | return ret; | |
692 | ||
693 | ret = (*devc->model->apply_fpga_config)(sdi); | |
694 | if (ret != SR_OK) { | |
695 | sr_err("Failed to apply FPGA configuration."); | |
696 | return ret; | |
697 | } | |
698 | ||
699 | return SR_OK; | |
ee38c8ba DE |
700 | } |
701 | ||
be64f90b DE |
702 | /* List available choices for a configuration setting. |
703 | */ | |
704 | static int config_list(uint32_t key, GVariant **data, | |
705 | const struct sr_dev_inst *sdi, | |
53b4680f | 706 | const struct sr_channel_group *cg) |
aeaad0b0 | 707 | { |
be64f90b | 708 | struct dev_context *devc; |
5874e88d DE |
709 | GVariant *gvar; |
710 | GVariantBuilder gvb; | |
aeaad0b0 | 711 | |
53b4680f | 712 | (void)cg; |
aeaad0b0 | 713 | |
be64f90b | 714 | if (key == SR_CONF_SCAN_OPTIONS) { |
584560f1 | 715 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
be64f90b DE |
716 | scanopts, ARRAY_SIZE(scanopts), |
717 | sizeof(scanopts[0])); | |
718 | return SR_OK; | |
719 | } | |
720 | if (!sdi) { | |
721 | if (key != SR_CONF_DEVICE_OPTIONS) | |
722 | return SR_ERR_ARG; | |
723 | ||
724 | /* List driver capabilities. */ | |
584560f1 | 725 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
be64f90b DE |
726 | drvopts, ARRAY_SIZE(drvopts), |
727 | sizeof(drvopts[0])); | |
728 | return SR_OK; | |
729 | } | |
730 | ||
731 | devc = sdi->priv; | |
732 | ||
733 | /* List the model's device options. */ | |
734 | if (key == SR_CONF_DEVICE_OPTIONS) { | |
735 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
736 | devc->model->devopts, | |
737 | devc->model->num_devopts, | |
738 | sizeof(devc->model->devopts[0])); | |
739 | return SR_OK; | |
740 | } | |
741 | ||
742 | if (!has_devopt(devc->model, key | SR_CONF_LIST)) | |
743 | return SR_ERR_NA; | |
744 | ||
745 | switch (key) { | |
5874e88d | 746 | case SR_CONF_SAMPLERATE: |
be64f90b DE |
747 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_VARDICT); |
748 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT64, | |
749 | devc->model->samplerates, | |
750 | devc->model->num_samplerates, | |
751 | sizeof(devc->model->samplerates[0])); | |
5874e88d DE |
752 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); |
753 | *data = g_variant_builder_end(&gvb); | |
754 | break; | |
bbe7e48a BV |
755 | case SR_CONF_TRIGGER_MATCH: |
756 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
be64f90b DE |
757 | trigger_matches, |
758 | ARRAY_SIZE(trigger_matches), | |
759 | sizeof(trigger_matches[0])); | |
5874e88d | 760 | break; |
e6e54bd2 DE |
761 | case SR_CONF_TRIGGER_SOURCE: |
762 | *data = g_variant_new_strv(trigger_source_names, | |
ce3ecb70 | 763 | ARRAY_SIZE(trigger_source_names)); |
e6e54bd2 DE |
764 | break; |
765 | case SR_CONF_TRIGGER_SLOPE: | |
6358f0a9 DE |
766 | case SR_CONF_CLOCK_EDGE: |
767 | *data = g_variant_new_strv(signal_edge_names, | |
ce3ecb70 | 768 | ARRAY_SIZE(signal_edge_names)); |
e6e54bd2 | 769 | break; |
aeaad0b0 | 770 | default: |
be64f90b DE |
771 | /* Must not happen for a key listed in devopts. */ |
772 | return SR_ERR_BUG; | |
aeaad0b0 DE |
773 | } |
774 | ||
5874e88d | 775 | return SR_OK; |
aeaad0b0 DE |
776 | } |
777 | ||
be64f90b DE |
778 | /* Set up the device hardware to begin capturing samples as soon as the |
779 | * configured trigger conditions are met, or immediately if no triggers | |
780 | * are configured. | |
781 | */ | |
5874e88d DE |
782 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
783 | { | |
aeaad0b0 DE |
784 | (void)cb_data; |
785 | ||
786 | if (sdi->status != SR_ST_ACTIVE) | |
787 | return SR_ERR_DEV_CLOSED; | |
788 | ||
5874e88d DE |
789 | sr_info("Starting acquisition."); |
790 | ||
be64f90b | 791 | return lwla_start_acquisition(sdi); |
aeaad0b0 DE |
792 | } |
793 | ||
be64f90b DE |
794 | /* Request that a running capture operation be stopped. |
795 | */ | |
aeaad0b0 DE |
796 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
797 | { | |
c81069b3 DE |
798 | struct dev_context *devc; |
799 | ||
aeaad0b0 | 800 | (void)cb_data; |
c81069b3 | 801 | devc = sdi->priv; |
aeaad0b0 DE |
802 | |
803 | if (sdi->status != SR_ST_ACTIVE) | |
804 | return SR_ERR_DEV_CLOSED; | |
805 | ||
be64f90b | 806 | if (devc->state != STATE_IDLE && !devc->cancel_requested) { |
c81069b3 DE |
807 | devc->cancel_requested = TRUE; |
808 | sr_dbg("Stopping acquisition."); | |
809 | } | |
aeaad0b0 DE |
810 | return SR_OK; |
811 | } | |
812 | ||
be64f90b DE |
813 | /* SysClk LWLA driver descriptor. |
814 | */ | |
aeaad0b0 DE |
815 | SR_PRIV struct sr_dev_driver sysclk_lwla_driver_info = { |
816 | .name = "sysclk-lwla", | |
5874e88d | 817 | .longname = "SysClk LWLA series", |
aeaad0b0 DE |
818 | .api_version = 1, |
819 | .init = init, | |
be64f90b | 820 | .cleanup = dev_clear, |
aeaad0b0 DE |
821 | .scan = scan, |
822 | .dev_list = dev_list, | |
823 | .dev_clear = dev_clear, | |
824 | .config_get = config_get, | |
825 | .config_set = config_set, | |
f3ca73ed | 826 | .config_channel_set = config_channel_set, |
ee38c8ba | 827 | .config_commit = config_commit, |
aeaad0b0 DE |
828 | .config_list = config_list, |
829 | .dev_open = dev_open, | |
830 | .dev_close = dev_close, | |
831 | .dev_acquisition_start = dev_acquisition_start, | |
832 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 833 | .context = NULL, |
aeaad0b0 | 834 | }; |