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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2011 Daniel Ribeiro <drwyrm@gmail.com> | |
5 | * Copyright (C) 2012 Renato Caldas <rmsc@fe.up.pt> | |
6 | * Copyright (C) 2013 Lior Elazary <lelazary@yahoo.com> | |
7 | * | |
8 | * This program is free software: you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation, either version 3 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
20 | */ | |
21 | ||
22 | #include <config.h> | |
23 | #include "protocol.h" | |
24 | ||
25 | static const uint32_t devopts[] = { | |
26 | SR_CONF_OSCILLOSCOPE, | |
27 | SR_CONF_LOGIC_ANALYZER, | |
28 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, | |
29 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
30 | SR_CONF_TRIGGER_TYPE | SR_CONF_LIST, | |
31 | SR_CONF_TRIGGER_SLOPE | SR_CONF_SET, | |
32 | SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_SET, | |
33 | SR_CONF_CAPTURE_RATIO | SR_CONF_SET, | |
34 | SR_CONF_RLE | SR_CONF_SET, | |
35 | }; | |
36 | ||
37 | /* | |
38 | * Channels are numbered 0 to 7. | |
39 | * | |
40 | * See also: http://www.linkinstruments.com/images/mso19_1113.gif | |
41 | */ | |
42 | static const char *channel_names[] = { | |
43 | /* Note: DSO needs to be first. */ | |
44 | "DSO", "0", "1", "2", "3", "4", "5", "6", "7", | |
45 | }; | |
46 | ||
47 | static const uint64_t samplerates[] = { | |
48 | SR_HZ(100), | |
49 | SR_MHZ(200), | |
50 | SR_HZ(100), | |
51 | }; | |
52 | ||
53 | SR_PRIV struct sr_dev_driver link_mso19_driver_info; | |
54 | ||
55 | /* TODO: Use sr_dev_inst to store connection handle & use std_dev_clear(). */ | |
56 | static int dev_clear(const struct sr_dev_driver *di) | |
57 | { | |
58 | struct drv_context *drvc = di->context; | |
59 | GSList *l; | |
60 | struct sr_dev_inst *sdi; | |
61 | struct dev_context *devc; | |
62 | int ret = SR_OK; | |
63 | ||
64 | /* Properly close and free all devices. */ | |
65 | for (l = drvc->instances; l; l = l->next) { | |
66 | if (!(sdi = l->data)) { | |
67 | /* Log error, but continue cleaning up the rest. */ | |
68 | sr_err("%s: sdi was NULL, continuing", __func__); | |
69 | ret = SR_ERR_BUG; | |
70 | continue; | |
71 | } | |
72 | if (!(devc = sdi->priv)) { | |
73 | /* Log error, but continue cleaning up the rest. */ | |
74 | sr_err("%s: sdi->priv was NULL, continuing", __func__); | |
75 | ret = SR_ERR_BUG; | |
76 | continue; | |
77 | } | |
78 | std_serial_dev_close(sdi); | |
79 | sr_serial_dev_inst_free(devc->serial); | |
80 | sr_dev_inst_free(sdi); | |
81 | } | |
82 | g_slist_free(drvc->instances); | |
83 | drvc->instances = NULL; | |
84 | ||
85 | return ret; | |
86 | } | |
87 | ||
88 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
89 | { | |
90 | int i; | |
91 | GSList *devices = NULL; | |
92 | const char *conn = NULL; | |
93 | const char *serialcomm = NULL; | |
94 | GSList *l; | |
95 | struct sr_config *src; | |
96 | struct udev *udev; | |
97 | int chtype; | |
98 | ||
99 | for (l = options; l; l = l->next) { | |
100 | src = l->data; | |
101 | switch (src->key) { | |
102 | case SR_CONF_CONN: | |
103 | conn = g_variant_get_string(src->data, NULL); | |
104 | break; | |
105 | case SR_CONF_SERIALCOMM: | |
106 | serialcomm = g_variant_get_string(src->data, NULL); | |
107 | break; | |
108 | } | |
109 | } | |
110 | if (!conn) | |
111 | conn = SERIALCONN; | |
112 | if (!serialcomm) | |
113 | serialcomm = SERIALCOMM; | |
114 | ||
115 | udev = udev_new(); | |
116 | if (!udev) { | |
117 | sr_err("Failed to initialize udev."); | |
118 | } | |
119 | ||
120 | struct udev_enumerate *enumerate = udev_enumerate_new(udev); | |
121 | udev_enumerate_add_match_subsystem(enumerate, "usb-serial"); | |
122 | udev_enumerate_scan_devices(enumerate); | |
123 | struct udev_list_entry *devs = udev_enumerate_get_list_entry(enumerate); | |
124 | struct udev_list_entry *dev_list_entry; | |
125 | for (dev_list_entry = devs; | |
126 | dev_list_entry != NULL; | |
127 | dev_list_entry = udev_list_entry_get_next(dev_list_entry)) { | |
128 | const char *syspath = udev_list_entry_get_name(dev_list_entry); | |
129 | struct udev_device *dev = | |
130 | udev_device_new_from_syspath(udev, syspath); | |
131 | const char *sysname = udev_device_get_sysname(dev); | |
132 | struct udev_device *parent = | |
133 | udev_device_get_parent_with_subsystem_devtype(dev, "usb", | |
134 | "usb_device"); | |
135 | ||
136 | if (!parent) { | |
137 | sr_err("Unable to find parent usb device for %s", | |
138 | sysname); | |
139 | continue; | |
140 | } | |
141 | ||
142 | const char *idVendor = | |
143 | udev_device_get_sysattr_value(parent, "idVendor"); | |
144 | const char *idProduct = | |
145 | udev_device_get_sysattr_value(parent, "idProduct"); | |
146 | if (strcmp(USB_VENDOR, idVendor) | |
147 | || strcmp(USB_PRODUCT, idProduct)) | |
148 | continue; | |
149 | ||
150 | const char *iSerial = | |
151 | udev_device_get_sysattr_value(parent, "serial"); | |
152 | const char *iProduct = | |
153 | udev_device_get_sysattr_value(parent, "product"); | |
154 | ||
155 | char path[32]; | |
156 | snprintf(path, sizeof(path), "/dev/%s", sysname); | |
157 | conn = path; | |
158 | ||
159 | size_t s = strcspn(iProduct, " "); | |
160 | char product[32]; | |
161 | char manufacturer[32]; | |
162 | if (s > sizeof(product) || | |
163 | strlen(iProduct) - s > sizeof(manufacturer)) { | |
164 | sr_err("Could not parse iProduct: %s.", iProduct); | |
165 | continue; | |
166 | } | |
167 | strncpy(product, iProduct, s); | |
168 | product[s] = 0; | |
169 | strcpy(manufacturer, iProduct + s + 1); | |
170 | ||
171 | //Create the device context and set its params | |
172 | struct dev_context *devc; | |
173 | devc = g_malloc0(sizeof(struct dev_context)); | |
174 | ||
175 | if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) { | |
176 | sr_err("Invalid iSerial: %s.", iSerial); | |
177 | g_free(devc); | |
178 | return devices; | |
179 | } | |
180 | ||
181 | char hwrev[32]; | |
182 | sprintf(hwrev, "r%d", devc->hwrev); | |
183 | devc->ctlbase1 = 0; | |
184 | devc->protocol_trigger.spimode = 0; | |
185 | for (i = 0; i < 4; i++) { | |
186 | devc->protocol_trigger.word[i] = 0; | |
187 | devc->protocol_trigger.mask[i] = 0xff; | |
188 | } | |
189 | ||
190 | devc->serial = sr_serial_dev_inst_new(conn, serialcomm); | |
191 | ||
192 | struct sr_dev_inst *sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
193 | sdi->status = SR_ST_INACTIVE; | |
194 | sdi->vendor = g_strdup(manufacturer); | |
195 | sdi->model = g_strdup(product); | |
196 | sdi->version = g_strdup(hwrev); | |
197 | ||
198 | if (!sdi) { | |
199 | sr_err("Unable to create device instance for %s", | |
200 | sysname); | |
201 | sr_dev_inst_free(sdi); | |
202 | g_free(devc); | |
203 | return devices; | |
204 | } | |
205 | ||
206 | sdi->driver = di; | |
207 | sdi->priv = devc; | |
208 | ||
209 | for (i = 0; i < ARRAY_SIZE(channel_names); i++) { | |
210 | chtype = (i == 0) ? SR_CHANNEL_ANALOG : SR_CHANNEL_LOGIC; | |
211 | sr_channel_new(sdi, i, chtype, TRUE, channel_names[i]); | |
212 | } | |
213 | ||
214 | //Add the driver | |
215 | struct drv_context *drvc = di->context; | |
216 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
217 | devices = g_slist_append(devices, sdi); | |
218 | } | |
219 | ||
220 | return devices; | |
221 | } | |
222 | ||
223 | static int dev_open(struct sr_dev_inst *sdi) | |
224 | { | |
225 | int ret; | |
226 | struct dev_context *devc; | |
227 | ||
228 | devc = sdi->priv; | |
229 | ||
230 | if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK) | |
231 | return SR_ERR; | |
232 | ||
233 | sdi->status = SR_ST_ACTIVE; | |
234 | ||
235 | /* FIXME: discard serial buffer */ | |
236 | mso_check_trigger(devc->serial, &devc->trigger_state); | |
237 | sr_dbg("Trigger state: 0x%x.", devc->trigger_state); | |
238 | ||
239 | ret = mso_reset_adc(sdi); | |
240 | if (ret != SR_OK) | |
241 | return ret; | |
242 | ||
243 | mso_check_trigger(devc->serial, &devc->trigger_state); | |
244 | sr_dbg("Trigger state: 0x%x.", devc->trigger_state); | |
245 | ||
246 | // ret = mso_reset_fsm(sdi); | |
247 | // if (ret != SR_OK) | |
248 | // return ret; | |
249 | // return SR_ERR; | |
250 | ||
251 | return SR_OK; | |
252 | } | |
253 | ||
254 | static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
255 | const struct sr_channel_group *cg) | |
256 | { | |
257 | struct dev_context *devc; | |
258 | ||
259 | (void)cg; | |
260 | ||
261 | switch (key) { | |
262 | case SR_CONF_SAMPLERATE: | |
263 | if (sdi) { | |
264 | devc = sdi->priv; | |
265 | *data = g_variant_new_uint64(devc->cur_rate); | |
266 | } else | |
267 | return SR_ERR; | |
268 | break; | |
269 | default: | |
270 | return SR_ERR_NA; | |
271 | } | |
272 | ||
273 | return SR_OK; | |
274 | } | |
275 | ||
276 | static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi, | |
277 | const struct sr_channel_group *cg) | |
278 | { | |
279 | int ret; | |
280 | struct dev_context *devc; | |
281 | uint64_t num_samples; | |
282 | const char *slope; | |
283 | int trigger_pos; | |
284 | double pos; | |
285 | ||
286 | (void)cg; | |
287 | devc = sdi->priv; | |
288 | ||
289 | if (sdi->status != SR_ST_ACTIVE) | |
290 | return SR_ERR_DEV_CLOSED; | |
291 | ||
292 | switch (key) { | |
293 | case SR_CONF_SAMPLERATE: | |
294 | // FIXME | |
295 | return mso_configure_rate(sdi, g_variant_get_uint64(data)); | |
296 | ret = SR_OK; | |
297 | break; | |
298 | case SR_CONF_LIMIT_SAMPLES: | |
299 | num_samples = g_variant_get_uint64(data); | |
300 | if (num_samples != 1024) { | |
301 | sr_err("Only 1024 samples are supported."); | |
302 | ret = SR_ERR_ARG; | |
303 | } else { | |
304 | devc->limit_samples = num_samples; | |
305 | ret = SR_OK; | |
306 | } | |
307 | break; | |
308 | case SR_CONF_CAPTURE_RATIO: | |
309 | ret = SR_OK; | |
310 | break; | |
311 | case SR_CONF_TRIGGER_SLOPE: | |
312 | slope = g_variant_get_string(data, NULL); | |
313 | ||
314 | if (!slope || !(slope[0] == 'f' || slope[0] == 'r')) | |
315 | sr_err("Invalid trigger slope"); | |
316 | ret = SR_ERR_ARG; | |
317 | } else { | |
318 | devc->trigger_slope = (slope[0] == 'r') | |
319 | ? SLOPE_POSITIVE : SLOPE_NEGATIVE; | |
320 | ret = SR_OK; | |
321 | } | |
322 | break; | |
323 | case SR_CONF_HORIZ_TRIGGERPOS: | |
324 | pos = g_variant_get_double(data); | |
325 | if (pos < 0 || pos > 255) { | |
326 | sr_err("Trigger position (%f) should be between 0 and 255.", pos); | |
327 | ret = SR_ERR_ARG; | |
328 | } else { | |
329 | trigger_pos = (int)pos; | |
330 | devc->trigger_holdoff[0] = trigger_pos & 0xff; | |
331 | ret = SR_OK; | |
332 | } | |
333 | break; | |
334 | case SR_CONF_RLE: | |
335 | ret = SR_OK; | |
336 | break; | |
337 | default: | |
338 | ret = SR_ERR_NA; | |
339 | break; | |
340 | } | |
341 | ||
342 | return ret; | |
343 | } | |
344 | ||
345 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
346 | const struct sr_channel_group *cg) | |
347 | { | |
348 | GVariant *gvar; | |
349 | GVariantBuilder gvb; | |
350 | ||
351 | (void)cg; | |
352 | (void)sdi; | |
353 | ||
354 | switch (key) { | |
355 | case SR_CONF_DEVICE_OPTIONS: | |
356 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
357 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
358 | break; | |
359 | case SR_CONF_SAMPLERATE: | |
360 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
361 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
362 | ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
363 | g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar); | |
364 | *data = g_variant_builder_end(&gvb); | |
365 | break; | |
366 | case SR_CONF_TRIGGER_TYPE: | |
367 | *data = g_variant_new_string(TRIGGER_TYPE); | |
368 | break; | |
369 | default: | |
370 | return SR_ERR_NA; | |
371 | } | |
372 | ||
373 | return SR_OK; | |
374 | } | |
375 | ||
376 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
377 | { | |
378 | struct dev_context *devc; | |
379 | int ret = SR_ERR; | |
380 | ||
381 | if (sdi->status != SR_ST_ACTIVE) | |
382 | return SR_ERR_DEV_CLOSED; | |
383 | ||
384 | devc = sdi->priv; | |
385 | ||
386 | if (mso_configure_channels(sdi) != SR_OK) { | |
387 | sr_err("Failed to configure channels."); | |
388 | return SR_ERR; | |
389 | } | |
390 | ||
391 | /* FIXME: No need to do full reconfigure every time */ | |
392 | // ret = mso_reset_fsm(sdi); | |
393 | // if (ret != SR_OK) | |
394 | // return ret; | |
395 | ||
396 | /* FIXME: ACDC Mode */ | |
397 | devc->ctlbase1 &= 0x7f; | |
398 | // devc->ctlbase1 |= devc->acdcmode; | |
399 | ||
400 | ret = mso_configure_rate(sdi, devc->cur_rate); | |
401 | if (ret != SR_OK) | |
402 | return ret; | |
403 | ||
404 | /* set dac offset */ | |
405 | ret = mso_dac_out(sdi, devc->dac_offset); | |
406 | if (ret != SR_OK) | |
407 | return ret; | |
408 | ||
409 | ret = mso_configure_threshold_level(sdi); | |
410 | if (ret != SR_OK) | |
411 | return ret; | |
412 | ||
413 | ret = mso_configure_trigger(sdi); | |
414 | if (ret != SR_OK) | |
415 | return ret; | |
416 | ||
417 | /* END of config hardware part */ | |
418 | ret = mso_arm(sdi); | |
419 | if (ret != SR_OK) | |
420 | return ret; | |
421 | ||
422 | /* Start acquisition on the device. */ | |
423 | mso_check_trigger(devc->serial, &devc->trigger_state); | |
424 | ret = mso_check_trigger(devc->serial, NULL); | |
425 | if (ret != SR_OK) | |
426 | return ret; | |
427 | ||
428 | /* Reset trigger state. */ | |
429 | devc->trigger_state = 0x00; | |
430 | ||
431 | std_session_send_df_header(sdi, LOG_PREFIX); | |
432 | ||
433 | /* Our first channel is analog, the other 8 are of type 'logic'. */ | |
434 | /* TODO. */ | |
435 | ||
436 | serial_source_add(sdi->session, devc->serial, G_IO_IN, -1, | |
437 | mso_receive_data, sdi); | |
438 | ||
439 | return SR_OK; | |
440 | } | |
441 | ||
442 | /* This stops acquisition on ALL devices, ignoring dev_index. */ | |
443 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
444 | { | |
445 | stop_acquisition(sdi); | |
446 | ||
447 | return SR_OK; | |
448 | } | |
449 | ||
450 | SR_PRIV struct sr_dev_driver link_mso19_driver_info = { | |
451 | .name = "link-mso19", | |
452 | .longname = "Link Instruments MSO-19", | |
453 | .api_version = 1, | |
454 | .init = std_init, | |
455 | .cleanup = std_cleanup, | |
456 | .scan = scan, | |
457 | .dev_list = std_dev_list, | |
458 | .dev_clear = dev_clear, | |
459 | .config_get = config_get, | |
460 | .config_set = config_set, | |
461 | .config_list = config_list, | |
462 | .dev_open = dev_open, | |
463 | .dev_close = std_serial_dev_close, | |
464 | .dev_acquisition_start = dev_acquisition_start, | |
465 | .dev_acquisition_stop = dev_acquisition_stop, | |
466 | .context = NULL, | |
467 | }; |