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b908f067 | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
b908f067 | 3 | * |
67f890d5 | 4 | * Copyright (C) 2011-2015 Uwe Hermann <uwe@hermann-uwe.de> |
b908f067 UH |
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 2 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 | |
2ea1fdf1 | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
b908f067 UH |
18 | */ |
19 | ||
6ec6c43b | 20 | #include <config.h> |
45e080b6 | 21 | #include "protocol.h" |
b908f067 | 22 | |
67f890d5 | 23 | static const uint32_t drvopts[] = { |
1bec72d2 | 24 | SR_CONF_LOGIC_ANALYZER, |
67f890d5 UH |
25 | }; |
26 | ||
27 | static const uint32_t scanopts[] = { | |
28 | SR_CONF_CONN, | |
29 | }; | |
30 | ||
31 | static const uint32_t devopts[] = { | |
5827f61b BV |
32 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, |
33 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_LIST, | |
67f890d5 | 34 | SR_CONF_CONN | SR_CONF_GET, |
5827f61b BV |
35 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
36 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
1bec72d2 BV |
37 | }; |
38 | ||
aeff7fa2 BV |
39 | static const int32_t trigger_matches[] = { |
40 | SR_TRIGGER_ZERO, | |
41 | SR_TRIGGER_ONE, | |
42 | SR_TRIGGER_RISING, | |
43 | SR_TRIGGER_FALLING, | |
44 | }; | |
45 | ||
97900799 | 46 | static void clear_helper(void *priv) |
c4f3ed4b | 47 | { |
1644fb24 | 48 | struct dev_context *devc; |
b172c130 | 49 | |
97900799 | 50 | devc = priv; |
1644fb24 | 51 | |
97900799 UH |
52 | ftdi_free(devc->ftdic); |
53 | g_free(devc->final_buf); | |
54 | } | |
c4f3ed4b | 55 | |
4f840ce9 | 56 | static int dev_clear(const struct sr_dev_driver *di) |
97900799 UH |
57 | { |
58 | return std_dev_clear(di, clear_helper); | |
c4f3ed4b BV |
59 | } |
60 | ||
15a5bfe4 LPC |
61 | static int add_device(int model, struct libusb_device_descriptor *des, |
62 | const char *serial_num, const char *connection_id, libusb_device *usbdev, | |
63 | GSList **devices) | |
b908f067 | 64 | { |
00910580 UH |
65 | int ret; |
66 | unsigned int i; | |
b908f067 | 67 | struct sr_dev_inst *sdi; |
1644fb24 | 68 | struct dev_context *devc; |
c4f3ed4b | 69 | |
00910580 | 70 | ret = SR_OK; |
f3a35908 | 71 | |
1644fb24 | 72 | /* Allocate memory for our private device context. */ |
f57d8ffe | 73 | devc = g_malloc0(sizeof(struct dev_context)); |
b908f067 UH |
74 | |
75 | /* Set some sane defaults. */ | |
00910580 UH |
76 | devc->prof = &cv_profiles[model]; |
77 | devc->ftdic = NULL; /* Will be set in the open() API call. */ | |
78 | devc->cur_samplerate = 0; /* Set later (different for LA8/LA16). */ | |
1644fb24 BV |
79 | devc->limit_msec = 0; |
80 | devc->limit_samples = 0; | |
1644fb24 BV |
81 | memset(devc->mangled_buf, 0, BS); |
82 | devc->final_buf = NULL; | |
00910580 UH |
83 | devc->trigger_pattern = 0x0000; /* Irrelevant, see trigger_mask. */ |
84 | devc->trigger_mask = 0x0000; /* All channels: "don't care". */ | |
85 | devc->trigger_edgemask = 0x0000; /* All channels: "state triggered". */ | |
1644fb24 BV |
86 | devc->trigger_found = 0; |
87 | devc->done = 0; | |
88 | devc->block_counter = 0; | |
00910580 | 89 | devc->divcount = 0; |
67f890d5 UH |
90 | devc->usb_vid = des->idVendor; |
91 | devc->usb_pid = des->idProduct; | |
00910580 | 92 | memset(devc->samplerates, 0, sizeof(uint64_t) * 255); |
b908f067 UH |
93 | |
94 | /* Allocate memory where we'll store the de-mangled data. */ | |
1644fb24 | 95 | if (!(devc->final_buf = g_try_malloc(SDRAM_SIZE))) { |
b172c130 | 96 | sr_err("Failed to allocate memory for sample buffer."); |
00910580 | 97 | ret = SR_ERR_MALLOC; |
1644fb24 | 98 | goto err_free_devc; |
b908f067 UH |
99 | } |
100 | ||
00910580 UH |
101 | /* We now know the device, set its max. samplerate as default. */ |
102 | devc->cur_samplerate = devc->prof->max_samplerate; | |
b908f067 UH |
103 | |
104 | /* Register the device with libsigrok. */ | |
aac29cc1 | 105 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
45884333 | 106 | sdi->status = SR_ST_INACTIVE; |
0af636be UH |
107 | sdi->vendor = g_strdup("ChronoVu"); |
108 | sdi->model = g_strdup(devc->prof->modelname); | |
67f890d5 UH |
109 | sdi->serial_num = g_strdup(serial_num); |
110 | sdi->connection_id = g_strdup(connection_id); | |
111 | sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(usbdev), | |
112 | libusb_get_device_address(usbdev), NULL); | |
1644fb24 | 113 | sdi->priv = devc; |
b908f067 | 114 | |
5e23fcab ML |
115 | for (i = 0; i < devc->prof->num_channels; i++) |
116 | sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, | |
0f34cb47 | 117 | cv_channel_names[i]); |
87ca93c5 | 118 | |
00910580 | 119 | *devices = g_slist_append(*devices, sdi); |
b908f067 | 120 | |
65c8d48f BV |
121 | if (ret == SR_OK) |
122 | return SR_OK; | |
b908f067 | 123 | |
1644fb24 BV |
124 | err_free_devc: |
125 | g_free(devc); | |
b908f067 | 126 | |
00910580 UH |
127 | return ret; |
128 | } | |
129 | ||
4f840ce9 | 130 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
00910580 | 131 | { |
67f890d5 UH |
132 | int i, ret, model; |
133 | struct drv_context *drvc; | |
134 | GSList *devices, *conn_devices, *l; | |
135 | struct sr_usb_dev_inst *usb; | |
136 | struct sr_config *src; | |
137 | struct libusb_device_descriptor des; | |
138 | libusb_device **devlist; | |
139 | struct libusb_device_handle *hdl; | |
140 | const char *conn; | |
141 | char product[64], serial_num[64], connection_id[64]; | |
00910580 | 142 | |
67f890d5 | 143 | drvc = di->context; |
67f890d5 UH |
144 | |
145 | conn = NULL; | |
146 | for (l = options; l; l = l->next) { | |
147 | src = l->data; | |
148 | switch (src->key) { | |
149 | case SR_CONF_CONN: | |
150 | conn = g_variant_get_string(src->data, NULL); | |
151 | break; | |
152 | } | |
00910580 | 153 | } |
67f890d5 UH |
154 | if (conn) |
155 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
156 | else | |
157 | conn_devices = NULL; | |
00910580 | 158 | |
67f890d5 UH |
159 | devices = NULL; |
160 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
161 | ||
162 | for (i = 0; devlist[i]; i++) { | |
163 | if (conn) { | |
164 | for (l = conn_devices; l; l = l->next) { | |
165 | usb = l->data; | |
166 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
167 | && usb->address == libusb_get_device_address(devlist[i])) | |
168 | break; | |
169 | } | |
170 | if (!l) | |
171 | /* This device matched none of the ones that | |
172 | * matched the conn specification. */ | |
173 | continue; | |
174 | } | |
175 | ||
176 | libusb_get_device_descriptor(devlist[i], &des); | |
177 | ||
178 | if ((ret = libusb_open(devlist[i], &hdl)) < 0) | |
179 | continue; | |
180 | ||
181 | if (des.iProduct == 0) { | |
182 | product[0] = '\0'; | |
183 | } else if ((ret = libusb_get_string_descriptor_ascii(hdl, | |
184 | des.iProduct, (unsigned char *)product, | |
185 | sizeof(product))) < 0) { | |
186 | sr_warn("Failed to get product string descriptor: %s.", | |
187 | libusb_error_name(ret)); | |
188 | continue; | |
189 | } | |
190 | ||
191 | if (des.iSerialNumber == 0) { | |
192 | serial_num[0] = '\0'; | |
193 | } else if ((ret = libusb_get_string_descriptor_ascii(hdl, | |
194 | des.iSerialNumber, (unsigned char *)serial_num, | |
195 | sizeof(serial_num))) < 0) { | |
196 | sr_warn("Failed to get serial number string descriptor: %s.", | |
197 | libusb_error_name(ret)); | |
198 | continue; | |
199 | } | |
200 | ||
201 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); | |
202 | ||
203 | libusb_close(hdl); | |
204 | ||
205 | if (!strcmp(product, "ChronoVu LA8")) { | |
206 | model = 0; | |
207 | } else if (!strcmp(product, "ChronoVu LA16")) { | |
208 | model = 1; | |
209 | } else { | |
210 | sr_spew("Unknown iProduct string '%s'.", product); | |
211 | continue; | |
212 | } | |
213 | ||
214 | sr_dbg("Found %s (%04x:%04x, %d.%d, %s).", | |
215 | product, des.idVendor, des.idProduct, | |
216 | libusb_get_bus_number(devlist[i]), | |
217 | libusb_get_device_address(devlist[i]), connection_id); | |
218 | ||
15a5bfe4 | 219 | if ((ret = add_device(model, &des, serial_num, connection_id, |
67f890d5 | 220 | devlist[i], &devices)) < 0) { |
00910580 | 221 | sr_dbg("Failed to add device: %d.", ret); |
67f890d5 | 222 | } |
00910580 UH |
223 | } |
224 | ||
67f890d5 UH |
225 | libusb_free_device_list(devlist, 1); |
226 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); | |
00910580 | 227 | |
15a5bfe4 | 228 | return std_scan_complete(di, devices); |
b908f067 UH |
229 | } |
230 | ||
6078d2c9 | 231 | static int dev_open(struct sr_dev_inst *sdi) |
b908f067 | 232 | { |
1644fb24 | 233 | struct dev_context *devc; |
25a0f108 | 234 | int ret; |
b908f067 | 235 | |
61c90858 | 236 | devc = sdi->priv; |
b908f067 | 237 | |
00910580 UH |
238 | /* Allocate memory for the FTDI context and initialize it. */ |
239 | if (!(devc->ftdic = ftdi_new())) { | |
240 | sr_err("Failed to initialize libftdi."); | |
241 | return SR_ERR; | |
242 | } | |
243 | ||
244 | sr_dbg("Opening %s device (%04x:%04x).", devc->prof->modelname, | |
245 | devc->usb_vid, devc->usb_pid); | |
b908f067 UH |
246 | |
247 | /* Open the device. */ | |
00910580 UH |
248 | if ((ret = ftdi_usb_open_desc(devc->ftdic, devc->usb_vid, |
249 | devc->usb_pid, devc->prof->iproduct, NULL)) < 0) { | |
b172c130 UH |
250 | sr_err("Failed to open FTDI device (%d): %s.", |
251 | ret, ftdi_get_error_string(devc->ftdic)); | |
00910580 | 252 | goto err_ftdi_free; |
b908f067 | 253 | } |
f3a35908 | 254 | sr_dbg("Device opened successfully."); |
b908f067 UH |
255 | |
256 | /* Purge RX/TX buffers in the FTDI chip. */ | |
1644fb24 | 257 | if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) { |
b172c130 UH |
258 | sr_err("Failed to purge FTDI buffers (%d): %s.", |
259 | ret, ftdi_get_error_string(devc->ftdic)); | |
00910580 | 260 | goto err_ftdi_free; |
b908f067 | 261 | } |
f3a35908 | 262 | sr_dbg("FTDI buffers purged successfully."); |
b908f067 UH |
263 | |
264 | /* Enable flow control in the FTDI chip. */ | |
1644fb24 | 265 | if ((ret = ftdi_setflowctrl(devc->ftdic, SIO_RTS_CTS_HS)) < 0) { |
b172c130 UH |
266 | sr_err("Failed to enable FTDI flow control (%d): %s.", |
267 | ret, ftdi_get_error_string(devc->ftdic)); | |
00910580 | 268 | goto err_ftdi_free; |
b908f067 | 269 | } |
f3a35908 | 270 | sr_dbg("FTDI flow control enabled successfully."); |
b908f067 UH |
271 | |
272 | /* Wait 100ms. */ | |
273 | g_usleep(100 * 1000); | |
274 | ||
7e463623 | 275 | return SR_OK; |
b908f067 | 276 | |
00910580 UH |
277 | err_ftdi_free: |
278 | ftdi_free(devc->ftdic); /* Close device (if open), free FTDI context. */ | |
279 | devc->ftdic = NULL; | |
7e463623 | 280 | return SR_ERR; |
b908f067 UH |
281 | } |
282 | ||
6078d2c9 | 283 | static int dev_close(struct sr_dev_inst *sdi) |
b908f067 | 284 | { |
00910580 | 285 | int ret; |
1644fb24 | 286 | struct dev_context *devc; |
b908f067 | 287 | |
00910580 | 288 | devc = sdi->priv; |
b908f067 | 289 | |
f1ba6b4b UH |
290 | if (!devc->ftdic) |
291 | return SR_ERR_BUG; | |
292 | ||
293 | if ((ret = ftdi_usb_close(devc->ftdic)) < 0) | |
00910580 UH |
294 | sr_err("Failed to close FTDI device (%d): %s.", |
295 | ret, ftdi_get_error_string(devc->ftdic)); | |
093e1cba | 296 | |
f1ba6b4b | 297 | return (ret == 0) ? SR_OK : SR_ERR; |
b908f067 UH |
298 | } |
299 | ||
584560f1 | 300 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 301 | const struct sr_channel_group *cg) |
b908f067 | 302 | { |
1644fb24 | 303 | struct dev_context *devc; |
67f890d5 UH |
304 | struct sr_usb_dev_inst *usb; |
305 | char str[128]; | |
b908f067 | 306 | |
53b4680f | 307 | (void)cg; |
8f996b89 | 308 | |
584560f1 | 309 | switch (key) { |
67f890d5 UH |
310 | case SR_CONF_CONN: |
311 | if (!sdi || !(usb = sdi->conn)) | |
312 | return SR_ERR_ARG; | |
313 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
314 | *data = g_variant_new_string(str); | |
315 | break; | |
123e1313 | 316 | case SR_CONF_SAMPLERATE: |
709468ba | 317 | if (!sdi) |
b172c130 | 318 | return SR_ERR_BUG; |
709468ba | 319 | devc = sdi->priv; |
b172c130 | 320 | *data = g_variant_new_uint64(devc->cur_samplerate); |
b908f067 | 321 | break; |
cfe8a84d | 322 | default: |
bd6fbf62 | 323 | return SR_ERR_NA; |
b908f067 UH |
324 | } |
325 | ||
6a2761fd | 326 | return SR_OK; |
b908f067 UH |
327 | } |
328 | ||
584560f1 | 329 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 330 | const struct sr_channel_group *cg) |
b908f067 | 331 | { |
1644fb24 | 332 | struct dev_context *devc; |
b908f067 | 333 | |
53b4680f | 334 | (void)cg; |
8f996b89 | 335 | |
b0baddef | 336 | devc = sdi->priv; |
b908f067 | 337 | |
584560f1 | 338 | switch (key) { |
1953564a | 339 | case SR_CONF_SAMPLERATE: |
00910580 | 340 | if (cv_set_samplerate(sdi, g_variant_get_uint64(data)) < 0) |
b908f067 | 341 | return SR_ERR; |
b908f067 | 342 | break; |
1953564a | 343 | case SR_CONF_LIMIT_MSEC: |
b172c130 UH |
344 | if (g_variant_get_uint64(data) == 0) |
345 | return SR_ERR_ARG; | |
1bec72d2 | 346 | devc->limit_msec = g_variant_get_uint64(data); |
b908f067 | 347 | break; |
1953564a | 348 | case SR_CONF_LIMIT_SAMPLES: |
b172c130 UH |
349 | if (g_variant_get_uint64(data) == 0) |
350 | return SR_ERR_ARG; | |
1bec72d2 | 351 | devc->limit_samples = g_variant_get_uint64(data); |
b908f067 UH |
352 | break; |
353 | default: | |
bd6fbf62 | 354 | return SR_ERR_NA; |
b908f067 UH |
355 | } |
356 | ||
357 | return SR_OK; | |
358 | } | |
359 | ||
584560f1 | 360 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 361 | const struct sr_channel_group *cg) |
a1c743fc | 362 | { |
f0de2dd0 | 363 | GVariant *gvar, *grange[2]; |
1bec72d2 | 364 | GVariantBuilder gvb; |
00910580 | 365 | struct dev_context *devc; |
a1c743fc | 366 | |
53b4680f | 367 | (void)cg; |
a1c743fc BV |
368 | |
369 | switch (key) { | |
67f890d5 | 370 | case SR_CONF_SCAN_OPTIONS: |
584560f1 | 371 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
67f890d5 UH |
372 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
373 | break; | |
374 | case SR_CONF_DEVICE_OPTIONS: | |
375 | if (!sdi) | |
376 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
377 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
378 | else | |
379 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
380 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
9a6517d1 | 381 | break; |
a1c743fc | 382 | case SR_CONF_SAMPLERATE: |
4d399734 | 383 | if (!sdi) |
00910580 | 384 | return SR_ERR_BUG; |
4d399734 | 385 | devc = sdi->priv; |
00910580 | 386 | cv_fill_samplerates_if_needed(sdi); |
1bec72d2 BV |
387 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); |
388 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
00910580 UH |
389 | devc->samplerates, |
390 | ARRAY_SIZE(devc->samplerates), | |
1bec72d2 BV |
391 | sizeof(uint64_t)); |
392 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
393 | *data = g_variant_builder_end(&gvb); | |
a1c743fc | 394 | break; |
f0de2dd0 | 395 | case SR_CONF_LIMIT_SAMPLES: |
69bdcd8b UH |
396 | if (!sdi || !sdi->priv || !(devc = sdi->priv) || !devc->prof) |
397 | return SR_ERR_BUG; | |
f0de2dd0 | 398 | grange[0] = g_variant_new_uint64(0); |
69bdcd8b UH |
399 | if (devc->prof->model == CHRONOVU_LA8) |
400 | grange[1] = g_variant_new_uint64(MAX_NUM_SAMPLES); | |
401 | else | |
402 | grange[1] = g_variant_new_uint64(MAX_NUM_SAMPLES / 2); | |
f0de2dd0 BV |
403 | *data = g_variant_new_tuple(grange, 2); |
404 | break; | |
aeff7fa2 | 405 | case SR_CONF_TRIGGER_MATCH: |
00910580 | 406 | if (!sdi || !sdi->priv || !(devc = sdi->priv) || !devc->prof) |
13dd25bd | 407 | return SR_ERR_BUG; |
af945a66 | 408 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, |
aeff7fa2 BV |
409 | trigger_matches, devc->prof->num_trigger_matches, |
410 | sizeof(int32_t)); | |
c50277a6 | 411 | break; |
a1c743fc | 412 | default: |
bd6fbf62 | 413 | return SR_ERR_NA; |
a1c743fc BV |
414 | } |
415 | ||
416 | return SR_OK; | |
417 | } | |
418 | ||
b908f067 UH |
419 | static int receive_data(int fd, int revents, void *cb_data) |
420 | { | |
421 | int i, ret; | |
422 | struct sr_dev_inst *sdi; | |
1644fb24 | 423 | struct dev_context *devc; |
b908f067 | 424 | |
b908f067 UH |
425 | (void)fd; |
426 | (void)revents; | |
427 | ||
428 | if (!(sdi = cb_data)) { | |
b172c130 | 429 | sr_err("cb_data was NULL."); |
b908f067 UH |
430 | return FALSE; |
431 | } | |
432 | ||
1644fb24 | 433 | if (!(devc = sdi->priv)) { |
b172c130 | 434 | sr_err("sdi->priv was NULL."); |
b908f067 UH |
435 | return FALSE; |
436 | } | |
437 | ||
1644fb24 | 438 | if (!devc->ftdic) { |
b172c130 | 439 | sr_err("devc->ftdic was NULL."); |
b908f067 UH |
440 | return FALSE; |
441 | } | |
442 | ||
443 | /* Get one block of data. */ | |
b172c130 UH |
444 | if ((ret = cv_read_block(devc)) < 0) { |
445 | sr_err("Failed to read data block: %d.", ret); | |
d2f7c417 | 446 | sr_dev_acquisition_stop(sdi); |
b908f067 UH |
447 | return FALSE; |
448 | } | |
449 | ||
450 | /* We need to get exactly NUM_BLOCKS blocks (i.e. 8MB) of data. */ | |
1644fb24 BV |
451 | if (devc->block_counter != (NUM_BLOCKS - 1)) { |
452 | devc->block_counter++; | |
b908f067 UH |
453 | return TRUE; |
454 | } | |
455 | ||
f3a35908 | 456 | sr_dbg("Sampling finished, sending data to session bus now."); |
b908f067 | 457 | |
b0efc84e UH |
458 | /* |
459 | * All data was received and demangled, send it to the session bus. | |
460 | * | |
461 | * Note: Due to the method how data is spread across the 8MByte of | |
462 | * SDRAM, we can _not_ send it to the session bus in a streaming | |
463 | * manner while we receive it. We have to receive and de-mangle the | |
464 | * full 8MByte first, only then the whole buffer contains valid data. | |
465 | */ | |
b908f067 | 466 | for (i = 0; i < NUM_BLOCKS; i++) |
695dc859 | 467 | cv_send_block_to_session_bus(sdi, i); |
b908f067 | 468 | |
d2f7c417 | 469 | sr_dev_acquisition_stop(sdi); |
b908f067 | 470 | |
b908f067 UH |
471 | return TRUE; |
472 | } | |
473 | ||
695dc859 | 474 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
b908f067 | 475 | { |
1644fb24 | 476 | struct dev_context *devc; |
00910580 UH |
477 | uint8_t buf[8]; |
478 | int bytes_to_write, bytes_written; | |
b908f067 | 479 | |
208c1d35 | 480 | devc = sdi->priv; |
b908f067 | 481 | |
1644fb24 | 482 | if (!devc->ftdic) { |
b172c130 | 483 | sr_err("devc->ftdic was NULL."); |
b908f067 UH |
484 | return SR_ERR_BUG; |
485 | } | |
486 | ||
00910580 | 487 | devc->divcount = cv_samplerate_to_divcount(sdi, devc->cur_samplerate); |
1644fb24 | 488 | if (devc->divcount == 0xff) { |
b172c130 | 489 | sr_err("Invalid divcount/samplerate."); |
b908f067 UH |
490 | return SR_ERR; |
491 | } | |
492 | ||
aeff7fa2 BV |
493 | if (cv_convert_trigger(sdi) != SR_OK) { |
494 | sr_err("Failed to configure trigger."); | |
014359e3 BV |
495 | return SR_ERR; |
496 | } | |
497 | ||
b908f067 | 498 | /* Fill acquisition parameters into buf[]. */ |
00910580 UH |
499 | if (devc->prof->model == CHRONOVU_LA8) { |
500 | buf[0] = devc->divcount; | |
501 | buf[1] = 0xff; /* This byte must always be 0xff. */ | |
502 | buf[2] = devc->trigger_pattern & 0xff; | |
503 | buf[3] = devc->trigger_mask & 0xff; | |
504 | bytes_to_write = 4; | |
505 | } else { | |
506 | buf[0] = devc->divcount; | |
507 | buf[1] = 0xff; /* This byte must always be 0xff. */ | |
508 | buf[2] = (devc->trigger_pattern & 0xff00) >> 8; /* LSB */ | |
509 | buf[3] = (devc->trigger_pattern & 0x00ff) >> 0; /* MSB */ | |
510 | buf[4] = (devc->trigger_mask & 0xff00) >> 8; /* LSB */ | |
511 | buf[5] = (devc->trigger_mask & 0x00ff) >> 0; /* MSB */ | |
512 | buf[6] = (devc->trigger_edgemask & 0xff00) >> 8; /* LSB */ | |
513 | buf[7] = (devc->trigger_edgemask & 0x00ff) >> 0; /* MSB */ | |
514 | bytes_to_write = 8; | |
515 | } | |
b908f067 UH |
516 | |
517 | /* Start acquisition. */ | |
00910580 | 518 | bytes_written = cv_write(devc, buf, bytes_to_write); |
b908f067 | 519 | |
00910580 UH |
520 | if (bytes_written < 0 || bytes_written != bytes_to_write) { |
521 | sr_err("Acquisition failed to start."); | |
afc88319 | 522 | return SR_ERR; |
b908f067 UH |
523 | } |
524 | ||
4afdfd46 | 525 | sr_dbg("Hardware acquisition started successfully."); |
b908f067 | 526 | |
bee2b016 | 527 | std_session_send_df_header(sdi); |
b908f067 | 528 | |
b908f067 | 529 | /* Time when we should be done (for detecting trigger timeouts). */ |
00910580 UH |
530 | devc->done = (devc->divcount + 1) * devc->prof->trigger_constant + |
531 | g_get_monotonic_time() + (10 * G_TIME_SPAN_SECOND); | |
1644fb24 BV |
532 | devc->block_counter = 0; |
533 | devc->trigger_found = 0; | |
b908f067 | 534 | |
b172c130 | 535 | /* Hook up a dummy handler to receive data from the device. */ |
c650d3ec | 536 | sr_session_source_add(sdi->session, -1, 0, 0, receive_data, (void *)sdi); |
b908f067 UH |
537 | |
538 | return SR_OK; | |
539 | } | |
540 | ||
695dc859 | 541 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
b908f067 | 542 | { |
102f1239 | 543 | sr_session_source_remove(sdi->session, -1); |
bee2b016 | 544 | std_session_send_df_end(sdi); |
b908f067 UH |
545 | |
546 | return SR_OK; | |
547 | } | |
548 | ||
dd5c48a6 | 549 | static struct sr_dev_driver chronovu_la_driver_info = { |
7b356712 UH |
550 | .name = "chronovu-la", |
551 | .longname = "ChronoVu LA8/LA16", | |
b908f067 | 552 | .api_version = 1, |
c2fdcc25 | 553 | .init = std_init, |
700d6b64 | 554 | .cleanup = std_cleanup, |
6078d2c9 | 555 | .scan = scan, |
c01bf34c | 556 | .dev_list = std_dev_list, |
3b412e3a | 557 | .dev_clear = dev_clear, |
035a1078 BV |
558 | .config_get = config_get, |
559 | .config_set = config_set, | |
a1c743fc | 560 | .config_list = config_list, |
6078d2c9 UH |
561 | .dev_open = dev_open, |
562 | .dev_close = dev_close, | |
563 | .dev_acquisition_start = dev_acquisition_start, | |
564 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 565 | .context = NULL, |
b908f067 | 566 | }; |
dd5c48a6 | 567 | SR_REGISTER_DEV_DRIVER(chronovu_la_driver_info); |