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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 | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
6ec6c43b | 21 | #include <config.h> |
45e080b6 | 22 | #include "protocol.h" |
b908f067 | 23 | |
7b356712 UH |
24 | SR_PRIV struct sr_dev_driver chronovu_la_driver_info; |
25 | static struct sr_dev_driver *di = &chronovu_la_driver_info; | |
b908f067 | 26 | |
67f890d5 | 27 | static const uint32_t drvopts[] = { |
1bec72d2 | 28 | SR_CONF_LOGIC_ANALYZER, |
67f890d5 UH |
29 | }; |
30 | ||
31 | static const uint32_t scanopts[] = { | |
32 | SR_CONF_CONN, | |
33 | }; | |
34 | ||
35 | static const uint32_t devopts[] = { | |
5827f61b BV |
36 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, |
37 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_LIST, | |
67f890d5 | 38 | SR_CONF_CONN | SR_CONF_GET, |
5827f61b BV |
39 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
40 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
1bec72d2 BV |
41 | }; |
42 | ||
aeff7fa2 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 | ||
695dc859 | 50 | static int dev_acquisition_stop(struct sr_dev_inst *sdi); |
b908f067 | 51 | |
97900799 | 52 | static void clear_helper(void *priv) |
c4f3ed4b | 53 | { |
1644fb24 | 54 | struct dev_context *devc; |
b172c130 | 55 | |
97900799 | 56 | devc = priv; |
1644fb24 | 57 | |
97900799 UH |
58 | ftdi_free(devc->ftdic); |
59 | g_free(devc->final_buf); | |
60 | } | |
c4f3ed4b | 61 | |
4f840ce9 | 62 | static int dev_clear(const struct sr_dev_driver *di) |
97900799 UH |
63 | { |
64 | return std_dev_clear(di, clear_helper); | |
c4f3ed4b BV |
65 | } |
66 | ||
67f890d5 UH |
67 | static int add_device(int model, struct libusb_device_descriptor *des, |
68 | const char *serial_num, const char *connection_id, | |
69 | libusb_device *usbdev, GSList **devices) | |
b908f067 | 70 | { |
00910580 UH |
71 | int ret; |
72 | unsigned int i; | |
b908f067 | 73 | struct sr_dev_inst *sdi; |
1644fb24 BV |
74 | struct drv_context *drvc; |
75 | struct dev_context *devc; | |
c4f3ed4b | 76 | |
00910580 | 77 | ret = SR_OK; |
f3a35908 | 78 | |
41812aca | 79 | drvc = di->context; |
4b97c74e | 80 | |
1644fb24 | 81 | /* Allocate memory for our private device context. */ |
f57d8ffe | 82 | devc = g_malloc0(sizeof(struct dev_context)); |
b908f067 UH |
83 | |
84 | /* Set some sane defaults. */ | |
00910580 UH |
85 | devc->prof = &cv_profiles[model]; |
86 | devc->ftdic = NULL; /* Will be set in the open() API call. */ | |
87 | devc->cur_samplerate = 0; /* Set later (different for LA8/LA16). */ | |
1644fb24 BV |
88 | devc->limit_msec = 0; |
89 | devc->limit_samples = 0; | |
1644fb24 BV |
90 | memset(devc->mangled_buf, 0, BS); |
91 | devc->final_buf = NULL; | |
00910580 UH |
92 | devc->trigger_pattern = 0x0000; /* Irrelevant, see trigger_mask. */ |
93 | devc->trigger_mask = 0x0000; /* All channels: "don't care". */ | |
94 | devc->trigger_edgemask = 0x0000; /* All channels: "state triggered". */ | |
1644fb24 BV |
95 | devc->trigger_found = 0; |
96 | devc->done = 0; | |
97 | devc->block_counter = 0; | |
00910580 | 98 | devc->divcount = 0; |
67f890d5 UH |
99 | devc->usb_vid = des->idVendor; |
100 | devc->usb_pid = des->idProduct; | |
00910580 | 101 | memset(devc->samplerates, 0, sizeof(uint64_t) * 255); |
b908f067 UH |
102 | |
103 | /* Allocate memory where we'll store the de-mangled data. */ | |
1644fb24 | 104 | if (!(devc->final_buf = g_try_malloc(SDRAM_SIZE))) { |
b172c130 | 105 | sr_err("Failed to allocate memory for sample buffer."); |
00910580 | 106 | ret = SR_ERR_MALLOC; |
1644fb24 | 107 | goto err_free_devc; |
b908f067 UH |
108 | } |
109 | ||
00910580 UH |
110 | /* We now know the device, set its max. samplerate as default. */ |
111 | devc->cur_samplerate = devc->prof->max_samplerate; | |
b908f067 UH |
112 | |
113 | /* Register the device with libsigrok. */ | |
aac29cc1 | 114 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
45884333 | 115 | sdi->status = SR_ST_INACTIVE; |
0af636be UH |
116 | sdi->vendor = g_strdup("ChronoVu"); |
117 | sdi->model = g_strdup(devc->prof->modelname); | |
67f890d5 UH |
118 | sdi->serial_num = g_strdup(serial_num); |
119 | sdi->connection_id = g_strdup(connection_id); | |
120 | sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(usbdev), | |
121 | libusb_get_device_address(usbdev), NULL); | |
f3a35908 | 122 | sdi->driver = di; |
1644fb24 | 123 | sdi->priv = devc; |
b908f067 | 124 | |
5e23fcab ML |
125 | for (i = 0; i < devc->prof->num_channels; i++) |
126 | sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, | |
0f34cb47 | 127 | cv_channel_names[i]); |
87ca93c5 | 128 | |
00910580 | 129 | *devices = g_slist_append(*devices, sdi); |
1644fb24 | 130 | drvc->instances = g_slist_append(drvc->instances, sdi); |
b908f067 | 131 | |
65c8d48f BV |
132 | if (ret == SR_OK) |
133 | return SR_OK; | |
b908f067 | 134 | |
1644fb24 BV |
135 | err_free_devc: |
136 | g_free(devc); | |
b908f067 | 137 | |
00910580 UH |
138 | return ret; |
139 | } | |
140 | ||
4f840ce9 | 141 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
00910580 | 142 | { |
67f890d5 UH |
143 | int i, ret, model; |
144 | struct drv_context *drvc; | |
145 | GSList *devices, *conn_devices, *l; | |
146 | struct sr_usb_dev_inst *usb; | |
147 | struct sr_config *src; | |
148 | struct libusb_device_descriptor des; | |
149 | libusb_device **devlist; | |
150 | struct libusb_device_handle *hdl; | |
151 | const char *conn; | |
152 | char product[64], serial_num[64], connection_id[64]; | |
00910580 | 153 | |
67f890d5 UH |
154 | drvc = di->context; |
155 | drvc->instances = NULL; | |
156 | ||
157 | conn = NULL; | |
158 | for (l = options; l; l = l->next) { | |
159 | src = l->data; | |
160 | switch (src->key) { | |
161 | case SR_CONF_CONN: | |
162 | conn = g_variant_get_string(src->data, NULL); | |
163 | break; | |
164 | } | |
00910580 | 165 | } |
67f890d5 UH |
166 | if (conn) |
167 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
168 | else | |
169 | conn_devices = NULL; | |
00910580 | 170 | |
67f890d5 UH |
171 | devices = NULL; |
172 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
173 | ||
174 | for (i = 0; devlist[i]; i++) { | |
175 | if (conn) { | |
176 | for (l = conn_devices; l; l = l->next) { | |
177 | usb = l->data; | |
178 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
179 | && usb->address == libusb_get_device_address(devlist[i])) | |
180 | break; | |
181 | } | |
182 | if (!l) | |
183 | /* This device matched none of the ones that | |
184 | * matched the conn specification. */ | |
185 | continue; | |
186 | } | |
187 | ||
188 | libusb_get_device_descriptor(devlist[i], &des); | |
189 | ||
190 | if ((ret = libusb_open(devlist[i], &hdl)) < 0) | |
191 | continue; | |
192 | ||
193 | if (des.iProduct == 0) { | |
194 | product[0] = '\0'; | |
195 | } else if ((ret = libusb_get_string_descriptor_ascii(hdl, | |
196 | des.iProduct, (unsigned char *)product, | |
197 | sizeof(product))) < 0) { | |
198 | sr_warn("Failed to get product string descriptor: %s.", | |
199 | libusb_error_name(ret)); | |
200 | continue; | |
201 | } | |
202 | ||
203 | if (des.iSerialNumber == 0) { | |
204 | serial_num[0] = '\0'; | |
205 | } else if ((ret = libusb_get_string_descriptor_ascii(hdl, | |
206 | des.iSerialNumber, (unsigned char *)serial_num, | |
207 | sizeof(serial_num))) < 0) { | |
208 | sr_warn("Failed to get serial number string descriptor: %s.", | |
209 | libusb_error_name(ret)); | |
210 | continue; | |
211 | } | |
212 | ||
213 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); | |
214 | ||
215 | libusb_close(hdl); | |
216 | ||
217 | if (!strcmp(product, "ChronoVu LA8")) { | |
218 | model = 0; | |
219 | } else if (!strcmp(product, "ChronoVu LA16")) { | |
220 | model = 1; | |
221 | } else { | |
222 | sr_spew("Unknown iProduct string '%s'.", product); | |
223 | continue; | |
224 | } | |
225 | ||
226 | sr_dbg("Found %s (%04x:%04x, %d.%d, %s).", | |
227 | product, des.idVendor, des.idProduct, | |
228 | libusb_get_bus_number(devlist[i]), | |
229 | libusb_get_device_address(devlist[i]), connection_id); | |
230 | ||
231 | if ((ret = add_device(model, &des, serial_num, connection_id, | |
232 | devlist[i], &devices)) < 0) { | |
00910580 | 233 | sr_dbg("Failed to add device: %d.", ret); |
67f890d5 | 234 | } |
00910580 UH |
235 | } |
236 | ||
67f890d5 UH |
237 | libusb_free_device_list(devlist, 1); |
238 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); | |
00910580 UH |
239 | |
240 | return devices; | |
b908f067 UH |
241 | } |
242 | ||
6078d2c9 | 243 | static int dev_open(struct sr_dev_inst *sdi) |
b908f067 | 244 | { |
1644fb24 | 245 | struct dev_context *devc; |
25a0f108 | 246 | int ret; |
b908f067 | 247 | |
61c90858 | 248 | devc = sdi->priv; |
b908f067 | 249 | |
00910580 UH |
250 | /* Allocate memory for the FTDI context and initialize it. */ |
251 | if (!(devc->ftdic = ftdi_new())) { | |
252 | sr_err("Failed to initialize libftdi."); | |
253 | return SR_ERR; | |
254 | } | |
255 | ||
256 | sr_dbg("Opening %s device (%04x:%04x).", devc->prof->modelname, | |
257 | devc->usb_vid, devc->usb_pid); | |
b908f067 UH |
258 | |
259 | /* Open the device. */ | |
00910580 UH |
260 | if ((ret = ftdi_usb_open_desc(devc->ftdic, devc->usb_vid, |
261 | devc->usb_pid, devc->prof->iproduct, NULL)) < 0) { | |
b172c130 UH |
262 | sr_err("Failed to open FTDI device (%d): %s.", |
263 | ret, ftdi_get_error_string(devc->ftdic)); | |
00910580 | 264 | goto err_ftdi_free; |
b908f067 | 265 | } |
f3a35908 | 266 | sr_dbg("Device opened successfully."); |
b908f067 UH |
267 | |
268 | /* Purge RX/TX buffers in the FTDI chip. */ | |
1644fb24 | 269 | if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) { |
b172c130 UH |
270 | sr_err("Failed to purge FTDI buffers (%d): %s.", |
271 | ret, ftdi_get_error_string(devc->ftdic)); | |
00910580 | 272 | goto err_ftdi_free; |
b908f067 | 273 | } |
f3a35908 | 274 | sr_dbg("FTDI buffers purged successfully."); |
b908f067 UH |
275 | |
276 | /* Enable flow control in the FTDI chip. */ | |
1644fb24 | 277 | if ((ret = ftdi_setflowctrl(devc->ftdic, SIO_RTS_CTS_HS)) < 0) { |
b172c130 UH |
278 | sr_err("Failed to enable FTDI flow control (%d): %s.", |
279 | ret, ftdi_get_error_string(devc->ftdic)); | |
00910580 | 280 | goto err_ftdi_free; |
b908f067 | 281 | } |
f3a35908 | 282 | sr_dbg("FTDI flow control enabled successfully."); |
b908f067 UH |
283 | |
284 | /* Wait 100ms. */ | |
285 | g_usleep(100 * 1000); | |
286 | ||
287 | sdi->status = SR_ST_ACTIVE; | |
288 | ||
65c8d48f BV |
289 | if (ret == SR_OK) |
290 | return SR_OK; | |
b908f067 | 291 | |
00910580 UH |
292 | err_ftdi_free: |
293 | ftdi_free(devc->ftdic); /* Close device (if open), free FTDI context. */ | |
294 | devc->ftdic = NULL; | |
295 | return ret; | |
b908f067 UH |
296 | } |
297 | ||
6078d2c9 | 298 | static int dev_close(struct sr_dev_inst *sdi) |
b908f067 | 299 | { |
00910580 | 300 | int ret; |
1644fb24 | 301 | struct dev_context *devc; |
b908f067 | 302 | |
00910580 UH |
303 | if (sdi->status != SR_ST_ACTIVE) |
304 | return SR_OK; | |
b908f067 | 305 | |
00910580 | 306 | devc = sdi->priv; |
b908f067 | 307 | |
00910580 UH |
308 | if (devc->ftdic && (ret = ftdi_usb_close(devc->ftdic)) < 0) |
309 | sr_err("Failed to close FTDI device (%d): %s.", | |
310 | ret, ftdi_get_error_string(devc->ftdic)); | |
b908f067 UH |
311 | sdi->status = SR_ST_INACTIVE; |
312 | ||
b908f067 UH |
313 | return SR_OK; |
314 | } | |
315 | ||
584560f1 | 316 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 317 | const struct sr_channel_group *cg) |
b908f067 | 318 | { |
1644fb24 | 319 | struct dev_context *devc; |
67f890d5 UH |
320 | struct sr_usb_dev_inst *usb; |
321 | char str[128]; | |
b908f067 | 322 | |
53b4680f | 323 | (void)cg; |
8f996b89 | 324 | |
584560f1 | 325 | switch (key) { |
67f890d5 UH |
326 | case SR_CONF_CONN: |
327 | if (!sdi || !(usb = sdi->conn)) | |
328 | return SR_ERR_ARG; | |
329 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
330 | *data = g_variant_new_string(str); | |
331 | break; | |
123e1313 | 332 | case SR_CONF_SAMPLERATE: |
709468ba | 333 | if (!sdi) |
b172c130 | 334 | return SR_ERR_BUG; |
709468ba | 335 | devc = sdi->priv; |
b172c130 | 336 | *data = g_variant_new_uint64(devc->cur_samplerate); |
b908f067 | 337 | break; |
cfe8a84d | 338 | default: |
bd6fbf62 | 339 | return SR_ERR_NA; |
b908f067 UH |
340 | } |
341 | ||
6a2761fd | 342 | return SR_OK; |
b908f067 UH |
343 | } |
344 | ||
584560f1 | 345 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 346 | const struct sr_channel_group *cg) |
b908f067 | 347 | { |
1644fb24 | 348 | struct dev_context *devc; |
b908f067 | 349 | |
53b4680f | 350 | (void)cg; |
8f996b89 | 351 | |
e73ffd42 BV |
352 | if (sdi->status != SR_ST_ACTIVE) |
353 | return SR_ERR_DEV_CLOSED; | |
354 | ||
b0baddef | 355 | devc = sdi->priv; |
b908f067 | 356 | |
584560f1 | 357 | switch (key) { |
1953564a | 358 | case SR_CONF_SAMPLERATE: |
00910580 | 359 | if (cv_set_samplerate(sdi, g_variant_get_uint64(data)) < 0) |
b908f067 | 360 | return SR_ERR; |
b908f067 | 361 | break; |
1953564a | 362 | case SR_CONF_LIMIT_MSEC: |
b172c130 UH |
363 | if (g_variant_get_uint64(data) == 0) |
364 | return SR_ERR_ARG; | |
1bec72d2 | 365 | devc->limit_msec = g_variant_get_uint64(data); |
b908f067 | 366 | break; |
1953564a | 367 | case SR_CONF_LIMIT_SAMPLES: |
b172c130 UH |
368 | if (g_variant_get_uint64(data) == 0) |
369 | return SR_ERR_ARG; | |
1bec72d2 | 370 | devc->limit_samples = g_variant_get_uint64(data); |
b908f067 UH |
371 | break; |
372 | default: | |
bd6fbf62 | 373 | return SR_ERR_NA; |
b908f067 UH |
374 | } |
375 | ||
376 | return SR_OK; | |
377 | } | |
378 | ||
584560f1 | 379 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 380 | const struct sr_channel_group *cg) |
a1c743fc | 381 | { |
f0de2dd0 | 382 | GVariant *gvar, *grange[2]; |
1bec72d2 | 383 | GVariantBuilder gvb; |
00910580 | 384 | struct dev_context *devc; |
a1c743fc | 385 | |
53b4680f | 386 | (void)cg; |
a1c743fc BV |
387 | |
388 | switch (key) { | |
67f890d5 | 389 | case SR_CONF_SCAN_OPTIONS: |
584560f1 | 390 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
67f890d5 UH |
391 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
392 | break; | |
393 | case SR_CONF_DEVICE_OPTIONS: | |
394 | if (!sdi) | |
395 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
396 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
397 | else | |
398 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
399 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
9a6517d1 | 400 | break; |
a1c743fc | 401 | case SR_CONF_SAMPLERATE: |
4d399734 | 402 | if (!sdi) |
00910580 | 403 | return SR_ERR_BUG; |
4d399734 | 404 | devc = sdi->priv; |
00910580 | 405 | cv_fill_samplerates_if_needed(sdi); |
1bec72d2 BV |
406 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); |
407 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
00910580 UH |
408 | devc->samplerates, |
409 | ARRAY_SIZE(devc->samplerates), | |
1bec72d2 BV |
410 | sizeof(uint64_t)); |
411 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
412 | *data = g_variant_builder_end(&gvb); | |
a1c743fc | 413 | break; |
f0de2dd0 | 414 | case SR_CONF_LIMIT_SAMPLES: |
69bdcd8b UH |
415 | if (!sdi || !sdi->priv || !(devc = sdi->priv) || !devc->prof) |
416 | return SR_ERR_BUG; | |
f0de2dd0 | 417 | grange[0] = g_variant_new_uint64(0); |
69bdcd8b UH |
418 | if (devc->prof->model == CHRONOVU_LA8) |
419 | grange[1] = g_variant_new_uint64(MAX_NUM_SAMPLES); | |
420 | else | |
421 | grange[1] = g_variant_new_uint64(MAX_NUM_SAMPLES / 2); | |
f0de2dd0 BV |
422 | *data = g_variant_new_tuple(grange, 2); |
423 | break; | |
aeff7fa2 | 424 | case SR_CONF_TRIGGER_MATCH: |
00910580 | 425 | if (!sdi || !sdi->priv || !(devc = sdi->priv) || !devc->prof) |
13dd25bd | 426 | return SR_ERR_BUG; |
af945a66 | 427 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, |
aeff7fa2 BV |
428 | trigger_matches, devc->prof->num_trigger_matches, |
429 | sizeof(int32_t)); | |
c50277a6 | 430 | break; |
a1c743fc | 431 | default: |
bd6fbf62 | 432 | return SR_ERR_NA; |
a1c743fc BV |
433 | } |
434 | ||
435 | return SR_OK; | |
436 | } | |
437 | ||
b908f067 UH |
438 | static int receive_data(int fd, int revents, void *cb_data) |
439 | { | |
440 | int i, ret; | |
441 | struct sr_dev_inst *sdi; | |
1644fb24 | 442 | struct dev_context *devc; |
b908f067 | 443 | |
b908f067 UH |
444 | (void)fd; |
445 | (void)revents; | |
446 | ||
447 | if (!(sdi = cb_data)) { | |
b172c130 | 448 | sr_err("cb_data was NULL."); |
b908f067 UH |
449 | return FALSE; |
450 | } | |
451 | ||
1644fb24 | 452 | if (!(devc = sdi->priv)) { |
b172c130 | 453 | sr_err("sdi->priv was NULL."); |
b908f067 UH |
454 | return FALSE; |
455 | } | |
456 | ||
1644fb24 | 457 | if (!devc->ftdic) { |
b172c130 | 458 | sr_err("devc->ftdic was NULL."); |
b908f067 UH |
459 | return FALSE; |
460 | } | |
461 | ||
462 | /* Get one block of data. */ | |
b172c130 UH |
463 | if ((ret = cv_read_block(devc)) < 0) { |
464 | sr_err("Failed to read data block: %d.", ret); | |
695dc859 | 465 | dev_acquisition_stop(sdi); |
b908f067 UH |
466 | return FALSE; |
467 | } | |
468 | ||
469 | /* We need to get exactly NUM_BLOCKS blocks (i.e. 8MB) of data. */ | |
1644fb24 BV |
470 | if (devc->block_counter != (NUM_BLOCKS - 1)) { |
471 | devc->block_counter++; | |
b908f067 UH |
472 | return TRUE; |
473 | } | |
474 | ||
f3a35908 | 475 | sr_dbg("Sampling finished, sending data to session bus now."); |
b908f067 | 476 | |
b0efc84e UH |
477 | /* |
478 | * All data was received and demangled, send it to the session bus. | |
479 | * | |
480 | * Note: Due to the method how data is spread across the 8MByte of | |
481 | * SDRAM, we can _not_ send it to the session bus in a streaming | |
482 | * manner while we receive it. We have to receive and de-mangle the | |
483 | * full 8MByte first, only then the whole buffer contains valid data. | |
484 | */ | |
b908f067 | 485 | for (i = 0; i < NUM_BLOCKS; i++) |
695dc859 | 486 | cv_send_block_to_session_bus(sdi, i); |
b908f067 | 487 | |
695dc859 | 488 | dev_acquisition_stop(sdi); |
b908f067 | 489 | |
b908f067 UH |
490 | return TRUE; |
491 | } | |
492 | ||
695dc859 | 493 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
b908f067 | 494 | { |
1644fb24 | 495 | struct dev_context *devc; |
00910580 UH |
496 | uint8_t buf[8]; |
497 | int bytes_to_write, bytes_written; | |
b908f067 | 498 | |
e73ffd42 BV |
499 | if (sdi->status != SR_ST_ACTIVE) |
500 | return SR_ERR_DEV_CLOSED; | |
501 | ||
208c1d35 | 502 | devc = sdi->priv; |
b908f067 | 503 | |
1644fb24 | 504 | if (!devc->ftdic) { |
b172c130 | 505 | sr_err("devc->ftdic was NULL."); |
b908f067 UH |
506 | return SR_ERR_BUG; |
507 | } | |
508 | ||
00910580 | 509 | devc->divcount = cv_samplerate_to_divcount(sdi, devc->cur_samplerate); |
1644fb24 | 510 | if (devc->divcount == 0xff) { |
b172c130 | 511 | sr_err("Invalid divcount/samplerate."); |
b908f067 UH |
512 | return SR_ERR; |
513 | } | |
514 | ||
aeff7fa2 BV |
515 | if (cv_convert_trigger(sdi) != SR_OK) { |
516 | sr_err("Failed to configure trigger."); | |
014359e3 BV |
517 | return SR_ERR; |
518 | } | |
519 | ||
b908f067 | 520 | /* Fill acquisition parameters into buf[]. */ |
00910580 UH |
521 | if (devc->prof->model == CHRONOVU_LA8) { |
522 | buf[0] = devc->divcount; | |
523 | buf[1] = 0xff; /* This byte must always be 0xff. */ | |
524 | buf[2] = devc->trigger_pattern & 0xff; | |
525 | buf[3] = devc->trigger_mask & 0xff; | |
526 | bytes_to_write = 4; | |
527 | } else { | |
528 | buf[0] = devc->divcount; | |
529 | buf[1] = 0xff; /* This byte must always be 0xff. */ | |
530 | buf[2] = (devc->trigger_pattern & 0xff00) >> 8; /* LSB */ | |
531 | buf[3] = (devc->trigger_pattern & 0x00ff) >> 0; /* MSB */ | |
532 | buf[4] = (devc->trigger_mask & 0xff00) >> 8; /* LSB */ | |
533 | buf[5] = (devc->trigger_mask & 0x00ff) >> 0; /* MSB */ | |
534 | buf[6] = (devc->trigger_edgemask & 0xff00) >> 8; /* LSB */ | |
535 | buf[7] = (devc->trigger_edgemask & 0x00ff) >> 0; /* MSB */ | |
536 | bytes_to_write = 8; | |
537 | } | |
b908f067 UH |
538 | |
539 | /* Start acquisition. */ | |
00910580 | 540 | bytes_written = cv_write(devc, buf, bytes_to_write); |
b908f067 | 541 | |
00910580 UH |
542 | if (bytes_written < 0 || bytes_written != bytes_to_write) { |
543 | sr_err("Acquisition failed to start."); | |
afc88319 | 544 | return SR_ERR; |
b908f067 UH |
545 | } |
546 | ||
4afdfd46 | 547 | sr_dbg("Hardware acquisition started successfully."); |
b908f067 | 548 | |
102f1239 | 549 | std_session_send_df_header(sdi, LOG_PREFIX); |
b908f067 | 550 | |
b908f067 | 551 | /* Time when we should be done (for detecting trigger timeouts). */ |
00910580 UH |
552 | devc->done = (devc->divcount + 1) * devc->prof->trigger_constant + |
553 | g_get_monotonic_time() + (10 * G_TIME_SPAN_SECOND); | |
1644fb24 BV |
554 | devc->block_counter = 0; |
555 | devc->trigger_found = 0; | |
b908f067 | 556 | |
b172c130 | 557 | /* Hook up a dummy handler to receive data from the device. */ |
c650d3ec | 558 | sr_session_source_add(sdi->session, -1, 0, 0, receive_data, (void *)sdi); |
b908f067 UH |
559 | |
560 | return SR_OK; | |
561 | } | |
562 | ||
695dc859 | 563 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
b908f067 | 564 | { |
f3a35908 | 565 | sr_dbg("Stopping acquisition."); |
102f1239 | 566 | sr_session_source_remove(sdi->session, -1); |
3be42bc2 | 567 | std_session_send_df_end(sdi, LOG_PREFIX); |
b908f067 UH |
568 | |
569 | return SR_OK; | |
570 | } | |
571 | ||
7b356712 UH |
572 | SR_PRIV struct sr_dev_driver chronovu_la_driver_info = { |
573 | .name = "chronovu-la", | |
574 | .longname = "ChronoVu LA8/LA16", | |
b908f067 | 575 | .api_version = 1, |
c2fdcc25 | 576 | .init = std_init, |
700d6b64 | 577 | .cleanup = std_cleanup, |
6078d2c9 | 578 | .scan = scan, |
c01bf34c | 579 | .dev_list = std_dev_list, |
3b412e3a | 580 | .dev_clear = dev_clear, |
035a1078 BV |
581 | .config_get = config_get, |
582 | .config_set = config_set, | |
a1c743fc | 583 | .config_list = config_list, |
6078d2c9 UH |
584 | .dev_open = dev_open, |
585 | .dev_close = dev_close, | |
586 | .dev_acquisition_start = dev_acquisition_start, | |
587 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 588 | .context = NULL, |
b908f067 | 589 | }; |