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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 | ||
4f840ce9 | 67 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) |
61136ea6 | 68 | { |
1f8f5bc0 | 69 | return std_init(di, sr_ctx, LOG_PREFIX); |
61136ea6 BV |
70 | } |
71 | ||
67f890d5 UH |
72 | static int add_device(int model, struct libusb_device_descriptor *des, |
73 | const char *serial_num, const char *connection_id, | |
74 | libusb_device *usbdev, GSList **devices) | |
b908f067 | 75 | { |
00910580 UH |
76 | int ret; |
77 | unsigned int i; | |
b908f067 | 78 | struct sr_dev_inst *sdi; |
1644fb24 BV |
79 | struct drv_context *drvc; |
80 | struct dev_context *devc; | |
c4f3ed4b | 81 | |
00910580 | 82 | ret = SR_OK; |
f3a35908 | 83 | |
41812aca | 84 | drvc = di->context; |
4b97c74e | 85 | |
1644fb24 | 86 | /* Allocate memory for our private device context. */ |
f57d8ffe | 87 | devc = g_malloc0(sizeof(struct dev_context)); |
b908f067 UH |
88 | |
89 | /* Set some sane defaults. */ | |
00910580 UH |
90 | devc->prof = &cv_profiles[model]; |
91 | devc->ftdic = NULL; /* Will be set in the open() API call. */ | |
92 | devc->cur_samplerate = 0; /* Set later (different for LA8/LA16). */ | |
1644fb24 BV |
93 | devc->limit_msec = 0; |
94 | devc->limit_samples = 0; | |
1644fb24 BV |
95 | memset(devc->mangled_buf, 0, BS); |
96 | devc->final_buf = NULL; | |
00910580 UH |
97 | devc->trigger_pattern = 0x0000; /* Irrelevant, see trigger_mask. */ |
98 | devc->trigger_mask = 0x0000; /* All channels: "don't care". */ | |
99 | devc->trigger_edgemask = 0x0000; /* All channels: "state triggered". */ | |
1644fb24 BV |
100 | devc->trigger_found = 0; |
101 | devc->done = 0; | |
102 | devc->block_counter = 0; | |
00910580 | 103 | devc->divcount = 0; |
67f890d5 UH |
104 | devc->usb_vid = des->idVendor; |
105 | devc->usb_pid = des->idProduct; | |
00910580 | 106 | memset(devc->samplerates, 0, sizeof(uint64_t) * 255); |
b908f067 UH |
107 | |
108 | /* Allocate memory where we'll store the de-mangled data. */ | |
1644fb24 | 109 | if (!(devc->final_buf = g_try_malloc(SDRAM_SIZE))) { |
b172c130 | 110 | sr_err("Failed to allocate memory for sample buffer."); |
00910580 | 111 | ret = SR_ERR_MALLOC; |
1644fb24 | 112 | goto err_free_devc; |
b908f067 UH |
113 | } |
114 | ||
00910580 UH |
115 | /* We now know the device, set its max. samplerate as default. */ |
116 | devc->cur_samplerate = devc->prof->max_samplerate; | |
b908f067 UH |
117 | |
118 | /* Register the device with libsigrok. */ | |
aac29cc1 | 119 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be UH |
120 | sdi->status = SR_ST_INITIALIZING; |
121 | sdi->vendor = g_strdup("ChronoVu"); | |
122 | sdi->model = g_strdup(devc->prof->modelname); | |
67f890d5 UH |
123 | sdi->serial_num = g_strdup(serial_num); |
124 | sdi->connection_id = g_strdup(connection_id); | |
125 | sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(usbdev), | |
126 | libusb_get_device_address(usbdev), NULL); | |
f3a35908 | 127 | sdi->driver = di; |
1644fb24 | 128 | sdi->priv = devc; |
b908f067 | 129 | |
5e23fcab ML |
130 | for (i = 0; i < devc->prof->num_channels; i++) |
131 | sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, | |
0f34cb47 | 132 | cv_channel_names[i]); |
87ca93c5 | 133 | |
00910580 | 134 | *devices = g_slist_append(*devices, sdi); |
1644fb24 | 135 | drvc->instances = g_slist_append(drvc->instances, sdi); |
b908f067 | 136 | |
65c8d48f BV |
137 | if (ret == SR_OK) |
138 | return SR_OK; | |
b908f067 | 139 | |
1644fb24 BV |
140 | err_free_devc: |
141 | g_free(devc); | |
b908f067 | 142 | |
00910580 UH |
143 | return ret; |
144 | } | |
145 | ||
4f840ce9 | 146 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
00910580 | 147 | { |
67f890d5 UH |
148 | int i, ret, model; |
149 | struct drv_context *drvc; | |
150 | GSList *devices, *conn_devices, *l; | |
151 | struct sr_usb_dev_inst *usb; | |
152 | struct sr_config *src; | |
153 | struct libusb_device_descriptor des; | |
154 | libusb_device **devlist; | |
155 | struct libusb_device_handle *hdl; | |
156 | const char *conn; | |
157 | char product[64], serial_num[64], connection_id[64]; | |
00910580 | 158 | |
67f890d5 UH |
159 | drvc = di->context; |
160 | drvc->instances = NULL; | |
161 | ||
162 | conn = NULL; | |
163 | for (l = options; l; l = l->next) { | |
164 | src = l->data; | |
165 | switch (src->key) { | |
166 | case SR_CONF_CONN: | |
167 | conn = g_variant_get_string(src->data, NULL); | |
168 | break; | |
169 | } | |
00910580 | 170 | } |
67f890d5 UH |
171 | if (conn) |
172 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
173 | else | |
174 | conn_devices = NULL; | |
00910580 | 175 | |
67f890d5 UH |
176 | devices = NULL; |
177 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
178 | ||
179 | for (i = 0; devlist[i]; i++) { | |
180 | if (conn) { | |
181 | for (l = conn_devices; l; l = l->next) { | |
182 | usb = l->data; | |
183 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
184 | && usb->address == libusb_get_device_address(devlist[i])) | |
185 | break; | |
186 | } | |
187 | if (!l) | |
188 | /* This device matched none of the ones that | |
189 | * matched the conn specification. */ | |
190 | continue; | |
191 | } | |
192 | ||
193 | libusb_get_device_descriptor(devlist[i], &des); | |
194 | ||
195 | if ((ret = libusb_open(devlist[i], &hdl)) < 0) | |
196 | continue; | |
197 | ||
198 | if (des.iProduct == 0) { | |
199 | product[0] = '\0'; | |
200 | } else if ((ret = libusb_get_string_descriptor_ascii(hdl, | |
201 | des.iProduct, (unsigned char *)product, | |
202 | sizeof(product))) < 0) { | |
203 | sr_warn("Failed to get product string descriptor: %s.", | |
204 | libusb_error_name(ret)); | |
205 | continue; | |
206 | } | |
207 | ||
208 | if (des.iSerialNumber == 0) { | |
209 | serial_num[0] = '\0'; | |
210 | } else if ((ret = libusb_get_string_descriptor_ascii(hdl, | |
211 | des.iSerialNumber, (unsigned char *)serial_num, | |
212 | sizeof(serial_num))) < 0) { | |
213 | sr_warn("Failed to get serial number string descriptor: %s.", | |
214 | libusb_error_name(ret)); | |
215 | continue; | |
216 | } | |
217 | ||
218 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); | |
219 | ||
220 | libusb_close(hdl); | |
221 | ||
222 | if (!strcmp(product, "ChronoVu LA8")) { | |
223 | model = 0; | |
224 | } else if (!strcmp(product, "ChronoVu LA16")) { | |
225 | model = 1; | |
226 | } else { | |
227 | sr_spew("Unknown iProduct string '%s'.", product); | |
228 | continue; | |
229 | } | |
230 | ||
231 | sr_dbg("Found %s (%04x:%04x, %d.%d, %s).", | |
232 | product, des.idVendor, des.idProduct, | |
233 | libusb_get_bus_number(devlist[i]), | |
234 | libusb_get_device_address(devlist[i]), connection_id); | |
235 | ||
236 | if ((ret = add_device(model, &des, serial_num, connection_id, | |
237 | devlist[i], &devices)) < 0) { | |
00910580 | 238 | sr_dbg("Failed to add device: %d.", ret); |
67f890d5 | 239 | } |
00910580 UH |
240 | } |
241 | ||
67f890d5 UH |
242 | libusb_free_device_list(devlist, 1); |
243 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); | |
00910580 UH |
244 | |
245 | return devices; | |
b908f067 UH |
246 | } |
247 | ||
6078d2c9 | 248 | static int dev_open(struct sr_dev_inst *sdi) |
b908f067 | 249 | { |
1644fb24 | 250 | struct dev_context *devc; |
25a0f108 | 251 | int ret; |
b908f067 | 252 | |
61c90858 | 253 | devc = sdi->priv; |
b908f067 | 254 | |
00910580 UH |
255 | /* Allocate memory for the FTDI context and initialize it. */ |
256 | if (!(devc->ftdic = ftdi_new())) { | |
257 | sr_err("Failed to initialize libftdi."); | |
258 | return SR_ERR; | |
259 | } | |
260 | ||
261 | sr_dbg("Opening %s device (%04x:%04x).", devc->prof->modelname, | |
262 | devc->usb_vid, devc->usb_pid); | |
b908f067 UH |
263 | |
264 | /* Open the device. */ | |
00910580 UH |
265 | if ((ret = ftdi_usb_open_desc(devc->ftdic, devc->usb_vid, |
266 | devc->usb_pid, devc->prof->iproduct, NULL)) < 0) { | |
b172c130 UH |
267 | sr_err("Failed to open FTDI device (%d): %s.", |
268 | ret, ftdi_get_error_string(devc->ftdic)); | |
00910580 | 269 | goto err_ftdi_free; |
b908f067 | 270 | } |
f3a35908 | 271 | sr_dbg("Device opened successfully."); |
b908f067 UH |
272 | |
273 | /* Purge RX/TX buffers in the FTDI chip. */ | |
1644fb24 | 274 | if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) { |
b172c130 UH |
275 | sr_err("Failed to purge FTDI buffers (%d): %s.", |
276 | ret, ftdi_get_error_string(devc->ftdic)); | |
00910580 | 277 | goto err_ftdi_free; |
b908f067 | 278 | } |
f3a35908 | 279 | sr_dbg("FTDI buffers purged successfully."); |
b908f067 UH |
280 | |
281 | /* Enable flow control in the FTDI chip. */ | |
1644fb24 | 282 | if ((ret = ftdi_setflowctrl(devc->ftdic, SIO_RTS_CTS_HS)) < 0) { |
b172c130 UH |
283 | sr_err("Failed to enable FTDI flow control (%d): %s.", |
284 | ret, ftdi_get_error_string(devc->ftdic)); | |
00910580 | 285 | goto err_ftdi_free; |
b908f067 | 286 | } |
f3a35908 | 287 | sr_dbg("FTDI flow control enabled successfully."); |
b908f067 UH |
288 | |
289 | /* Wait 100ms. */ | |
290 | g_usleep(100 * 1000); | |
291 | ||
292 | sdi->status = SR_ST_ACTIVE; | |
293 | ||
65c8d48f BV |
294 | if (ret == SR_OK) |
295 | return SR_OK; | |
b908f067 | 296 | |
00910580 UH |
297 | err_ftdi_free: |
298 | ftdi_free(devc->ftdic); /* Close device (if open), free FTDI context. */ | |
299 | devc->ftdic = NULL; | |
300 | return ret; | |
b908f067 UH |
301 | } |
302 | ||
6078d2c9 | 303 | static int dev_close(struct sr_dev_inst *sdi) |
b908f067 | 304 | { |
00910580 | 305 | int ret; |
1644fb24 | 306 | struct dev_context *devc; |
b908f067 | 307 | |
00910580 UH |
308 | if (sdi->status != SR_ST_ACTIVE) |
309 | return SR_OK; | |
b908f067 | 310 | |
00910580 | 311 | devc = sdi->priv; |
b908f067 | 312 | |
00910580 UH |
313 | if (devc->ftdic && (ret = ftdi_usb_close(devc->ftdic)) < 0) |
314 | sr_err("Failed to close FTDI device (%d): %s.", | |
315 | ret, ftdi_get_error_string(devc->ftdic)); | |
b908f067 UH |
316 | sdi->status = SR_ST_INACTIVE; |
317 | ||
b908f067 UH |
318 | return SR_OK; |
319 | } | |
320 | ||
584560f1 | 321 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 322 | const struct sr_channel_group *cg) |
b908f067 | 323 | { |
1644fb24 | 324 | struct dev_context *devc; |
67f890d5 UH |
325 | struct sr_usb_dev_inst *usb; |
326 | char str[128]; | |
b908f067 | 327 | |
53b4680f | 328 | (void)cg; |
8f996b89 | 329 | |
584560f1 | 330 | switch (key) { |
67f890d5 UH |
331 | case SR_CONF_CONN: |
332 | if (!sdi || !(usb = sdi->conn)) | |
333 | return SR_ERR_ARG; | |
334 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
335 | *data = g_variant_new_string(str); | |
336 | break; | |
123e1313 | 337 | case SR_CONF_SAMPLERATE: |
b172c130 UH |
338 | if (!sdi || !(devc = sdi->priv)) |
339 | return SR_ERR_BUG; | |
340 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
b908f067 | 341 | break; |
cfe8a84d | 342 | default: |
bd6fbf62 | 343 | return SR_ERR_NA; |
b908f067 UH |
344 | } |
345 | ||
6a2761fd | 346 | return SR_OK; |
b908f067 UH |
347 | } |
348 | ||
584560f1 | 349 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 350 | const struct sr_channel_group *cg) |
b908f067 | 351 | { |
1644fb24 | 352 | struct dev_context *devc; |
b908f067 | 353 | |
53b4680f | 354 | (void)cg; |
8f996b89 | 355 | |
e73ffd42 BV |
356 | if (sdi->status != SR_ST_ACTIVE) |
357 | return SR_ERR_DEV_CLOSED; | |
358 | ||
b172c130 | 359 | if (!(devc = sdi->priv)) |
b908f067 | 360 | return SR_ERR_BUG; |
b908f067 | 361 | |
584560f1 | 362 | switch (key) { |
1953564a | 363 | case SR_CONF_SAMPLERATE: |
00910580 | 364 | if (cv_set_samplerate(sdi, g_variant_get_uint64(data)) < 0) |
b908f067 | 365 | return SR_ERR; |
b908f067 | 366 | break; |
1953564a | 367 | case SR_CONF_LIMIT_MSEC: |
b172c130 UH |
368 | if (g_variant_get_uint64(data) == 0) |
369 | return SR_ERR_ARG; | |
1bec72d2 | 370 | devc->limit_msec = g_variant_get_uint64(data); |
b908f067 | 371 | break; |
1953564a | 372 | case SR_CONF_LIMIT_SAMPLES: |
b172c130 UH |
373 | if (g_variant_get_uint64(data) == 0) |
374 | return SR_ERR_ARG; | |
1bec72d2 | 375 | devc->limit_samples = g_variant_get_uint64(data); |
b908f067 UH |
376 | break; |
377 | default: | |
bd6fbf62 | 378 | return SR_ERR_NA; |
b908f067 UH |
379 | } |
380 | ||
381 | return SR_OK; | |
382 | } | |
383 | ||
584560f1 | 384 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 385 | const struct sr_channel_group *cg) |
a1c743fc | 386 | { |
f0de2dd0 | 387 | GVariant *gvar, *grange[2]; |
1bec72d2 | 388 | GVariantBuilder gvb; |
00910580 | 389 | struct dev_context *devc; |
a1c743fc | 390 | |
53b4680f | 391 | (void)cg; |
a1c743fc BV |
392 | |
393 | switch (key) { | |
67f890d5 | 394 | case SR_CONF_SCAN_OPTIONS: |
584560f1 | 395 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
67f890d5 UH |
396 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
397 | break; | |
398 | case SR_CONF_DEVICE_OPTIONS: | |
399 | if (!sdi) | |
400 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
401 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
402 | else | |
403 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
404 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
9a6517d1 | 405 | break; |
a1c743fc | 406 | case SR_CONF_SAMPLERATE: |
00910580 UH |
407 | if (!sdi || !sdi->priv || !(devc = sdi->priv)) |
408 | return SR_ERR_BUG; | |
409 | cv_fill_samplerates_if_needed(sdi); | |
1bec72d2 BV |
410 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); |
411 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
00910580 UH |
412 | devc->samplerates, |
413 | ARRAY_SIZE(devc->samplerates), | |
1bec72d2 BV |
414 | sizeof(uint64_t)); |
415 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
416 | *data = g_variant_builder_end(&gvb); | |
a1c743fc | 417 | break; |
f0de2dd0 | 418 | case SR_CONF_LIMIT_SAMPLES: |
69bdcd8b UH |
419 | if (!sdi || !sdi->priv || !(devc = sdi->priv) || !devc->prof) |
420 | return SR_ERR_BUG; | |
f0de2dd0 | 421 | grange[0] = g_variant_new_uint64(0); |
69bdcd8b UH |
422 | if (devc->prof->model == CHRONOVU_LA8) |
423 | grange[1] = g_variant_new_uint64(MAX_NUM_SAMPLES); | |
424 | else | |
425 | grange[1] = g_variant_new_uint64(MAX_NUM_SAMPLES / 2); | |
f0de2dd0 BV |
426 | *data = g_variant_new_tuple(grange, 2); |
427 | break; | |
aeff7fa2 | 428 | case SR_CONF_TRIGGER_MATCH: |
00910580 | 429 | if (!sdi || !sdi->priv || !(devc = sdi->priv) || !devc->prof) |
13dd25bd | 430 | return SR_ERR_BUG; |
af945a66 | 431 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, |
aeff7fa2 BV |
432 | trigger_matches, devc->prof->num_trigger_matches, |
433 | sizeof(int32_t)); | |
c50277a6 | 434 | break; |
a1c743fc | 435 | default: |
bd6fbf62 | 436 | return SR_ERR_NA; |
a1c743fc BV |
437 | } |
438 | ||
439 | return SR_OK; | |
440 | } | |
441 | ||
b908f067 UH |
442 | static int receive_data(int fd, int revents, void *cb_data) |
443 | { | |
444 | int i, ret; | |
445 | struct sr_dev_inst *sdi; | |
1644fb24 | 446 | struct dev_context *devc; |
b908f067 | 447 | |
b908f067 UH |
448 | (void)fd; |
449 | (void)revents; | |
450 | ||
451 | if (!(sdi = cb_data)) { | |
b172c130 | 452 | sr_err("cb_data was NULL."); |
b908f067 UH |
453 | return FALSE; |
454 | } | |
455 | ||
1644fb24 | 456 | if (!(devc = sdi->priv)) { |
b172c130 | 457 | sr_err("sdi->priv was NULL."); |
b908f067 UH |
458 | return FALSE; |
459 | } | |
460 | ||
1644fb24 | 461 | if (!devc->ftdic) { |
b172c130 | 462 | sr_err("devc->ftdic was NULL."); |
b908f067 UH |
463 | return FALSE; |
464 | } | |
465 | ||
466 | /* Get one block of data. */ | |
b172c130 UH |
467 | if ((ret = cv_read_block(devc)) < 0) { |
468 | sr_err("Failed to read data block: %d.", ret); | |
695dc859 | 469 | dev_acquisition_stop(sdi); |
b908f067 UH |
470 | return FALSE; |
471 | } | |
472 | ||
473 | /* We need to get exactly NUM_BLOCKS blocks (i.e. 8MB) of data. */ | |
1644fb24 BV |
474 | if (devc->block_counter != (NUM_BLOCKS - 1)) { |
475 | devc->block_counter++; | |
b908f067 UH |
476 | return TRUE; |
477 | } | |
478 | ||
f3a35908 | 479 | sr_dbg("Sampling finished, sending data to session bus now."); |
b908f067 | 480 | |
b0efc84e UH |
481 | /* |
482 | * All data was received and demangled, send it to the session bus. | |
483 | * | |
484 | * Note: Due to the method how data is spread across the 8MByte of | |
485 | * SDRAM, we can _not_ send it to the session bus in a streaming | |
486 | * manner while we receive it. We have to receive and de-mangle the | |
487 | * full 8MByte first, only then the whole buffer contains valid data. | |
488 | */ | |
b908f067 | 489 | for (i = 0; i < NUM_BLOCKS; i++) |
695dc859 | 490 | cv_send_block_to_session_bus(sdi, i); |
b908f067 | 491 | |
695dc859 | 492 | dev_acquisition_stop(sdi); |
b908f067 | 493 | |
b908f067 UH |
494 | return TRUE; |
495 | } | |
496 | ||
695dc859 | 497 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
b908f067 | 498 | { |
1644fb24 | 499 | struct dev_context *devc; |
00910580 UH |
500 | uint8_t buf[8]; |
501 | int bytes_to_write, bytes_written; | |
b908f067 | 502 | |
e73ffd42 BV |
503 | if (sdi->status != SR_ST_ACTIVE) |
504 | return SR_ERR_DEV_CLOSED; | |
505 | ||
208c1d35 | 506 | devc = sdi->priv; |
b908f067 | 507 | |
1644fb24 | 508 | if (!devc->ftdic) { |
b172c130 | 509 | sr_err("devc->ftdic was NULL."); |
b908f067 UH |
510 | return SR_ERR_BUG; |
511 | } | |
512 | ||
00910580 | 513 | devc->divcount = cv_samplerate_to_divcount(sdi, devc->cur_samplerate); |
1644fb24 | 514 | if (devc->divcount == 0xff) { |
b172c130 | 515 | sr_err("Invalid divcount/samplerate."); |
b908f067 UH |
516 | return SR_ERR; |
517 | } | |
518 | ||
aeff7fa2 BV |
519 | if (cv_convert_trigger(sdi) != SR_OK) { |
520 | sr_err("Failed to configure trigger."); | |
014359e3 BV |
521 | return SR_ERR; |
522 | } | |
523 | ||
b908f067 | 524 | /* Fill acquisition parameters into buf[]. */ |
00910580 UH |
525 | if (devc->prof->model == CHRONOVU_LA8) { |
526 | buf[0] = devc->divcount; | |
527 | buf[1] = 0xff; /* This byte must always be 0xff. */ | |
528 | buf[2] = devc->trigger_pattern & 0xff; | |
529 | buf[3] = devc->trigger_mask & 0xff; | |
530 | bytes_to_write = 4; | |
531 | } else { | |
532 | buf[0] = devc->divcount; | |
533 | buf[1] = 0xff; /* This byte must always be 0xff. */ | |
534 | buf[2] = (devc->trigger_pattern & 0xff00) >> 8; /* LSB */ | |
535 | buf[3] = (devc->trigger_pattern & 0x00ff) >> 0; /* MSB */ | |
536 | buf[4] = (devc->trigger_mask & 0xff00) >> 8; /* LSB */ | |
537 | buf[5] = (devc->trigger_mask & 0x00ff) >> 0; /* MSB */ | |
538 | buf[6] = (devc->trigger_edgemask & 0xff00) >> 8; /* LSB */ | |
539 | buf[7] = (devc->trigger_edgemask & 0x00ff) >> 0; /* MSB */ | |
540 | bytes_to_write = 8; | |
541 | } | |
b908f067 UH |
542 | |
543 | /* Start acquisition. */ | |
00910580 | 544 | bytes_written = cv_write(devc, buf, bytes_to_write); |
b908f067 | 545 | |
00910580 UH |
546 | if (bytes_written < 0 || bytes_written != bytes_to_write) { |
547 | sr_err("Acquisition failed to start."); | |
afc88319 | 548 | return SR_ERR; |
b908f067 UH |
549 | } |
550 | ||
4afdfd46 | 551 | sr_dbg("Hardware acquisition started successfully."); |
b908f067 | 552 | |
102f1239 | 553 | std_session_send_df_header(sdi, LOG_PREFIX); |
b908f067 | 554 | |
b908f067 | 555 | /* Time when we should be done (for detecting trigger timeouts). */ |
00910580 UH |
556 | devc->done = (devc->divcount + 1) * devc->prof->trigger_constant + |
557 | g_get_monotonic_time() + (10 * G_TIME_SPAN_SECOND); | |
1644fb24 BV |
558 | devc->block_counter = 0; |
559 | devc->trigger_found = 0; | |
b908f067 | 560 | |
b172c130 | 561 | /* Hook up a dummy handler to receive data from the device. */ |
c650d3ec | 562 | sr_session_source_add(sdi->session, -1, 0, 0, receive_data, (void *)sdi); |
b908f067 UH |
563 | |
564 | return SR_OK; | |
565 | } | |
566 | ||
695dc859 | 567 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
b908f067 | 568 | { |
f3a35908 | 569 | sr_dbg("Stopping acquisition."); |
102f1239 | 570 | sr_session_source_remove(sdi->session, -1); |
3be42bc2 | 571 | std_session_send_df_end(sdi, LOG_PREFIX); |
b908f067 UH |
572 | |
573 | return SR_OK; | |
574 | } | |
575 | ||
7b356712 UH |
576 | SR_PRIV struct sr_dev_driver chronovu_la_driver_info = { |
577 | .name = "chronovu-la", | |
578 | .longname = "ChronoVu LA8/LA16", | |
b908f067 | 579 | .api_version = 1, |
6078d2c9 | 580 | .init = init, |
700d6b64 | 581 | .cleanup = std_cleanup, |
6078d2c9 | 582 | .scan = scan, |
c01bf34c | 583 | .dev_list = std_dev_list, |
3b412e3a | 584 | .dev_clear = dev_clear, |
035a1078 BV |
585 | .config_get = config_get, |
586 | .config_set = config_set, | |
a1c743fc | 587 | .config_list = config_list, |
6078d2c9 UH |
588 | .dev_open = dev_open, |
589 | .dev_close = dev_close, | |
590 | .dev_acquisition_start = dev_acquisition_start, | |
591 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 592 | .context = NULL, |
b908f067 | 593 | }; |