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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 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
54 | { | |
55 | int i; | |
56 | GSList *devices = NULL; | |
57 | const char *conn = NULL; | |
58 | const char *serialcomm = NULL; | |
59 | GSList *l; | |
60 | struct sr_config *src; | |
61 | struct udev *udev; | |
62 | int chtype; | |
63 | ||
64 | for (l = options; l; l = l->next) { | |
65 | src = l->data; | |
66 | switch (src->key) { | |
67 | case SR_CONF_CONN: | |
68 | conn = g_variant_get_string(src->data, NULL); | |
69 | break; | |
70 | case SR_CONF_SERIALCOMM: | |
71 | serialcomm = g_variant_get_string(src->data, NULL); | |
72 | break; | |
73 | } | |
74 | } | |
75 | if (!conn) | |
76 | conn = SERIALCONN; | |
77 | if (!serialcomm) | |
78 | serialcomm = SERIALCOMM; | |
79 | ||
80 | udev = udev_new(); | |
81 | if (!udev) { | |
82 | sr_err("Failed to initialize udev."); | |
83 | } | |
84 | ||
85 | struct udev_enumerate *enumerate = udev_enumerate_new(udev); | |
86 | udev_enumerate_add_match_subsystem(enumerate, "usb-serial"); | |
87 | udev_enumerate_scan_devices(enumerate); | |
88 | struct udev_list_entry *devs = udev_enumerate_get_list_entry(enumerate); | |
89 | struct udev_list_entry *dev_list_entry; | |
90 | for (dev_list_entry = devs; | |
91 | dev_list_entry != NULL; | |
92 | dev_list_entry = udev_list_entry_get_next(dev_list_entry)) { | |
93 | const char *syspath = udev_list_entry_get_name(dev_list_entry); | |
94 | struct udev_device *dev = | |
95 | udev_device_new_from_syspath(udev, syspath); | |
96 | const char *sysname = udev_device_get_sysname(dev); | |
97 | struct udev_device *parent = | |
98 | udev_device_get_parent_with_subsystem_devtype(dev, "usb", | |
99 | "usb_device"); | |
100 | ||
101 | if (!parent) { | |
102 | sr_err("Unable to find parent usb device for %s", | |
103 | sysname); | |
104 | continue; | |
105 | } | |
106 | ||
107 | const char *idVendor = | |
108 | udev_device_get_sysattr_value(parent, "idVendor"); | |
109 | const char *idProduct = | |
110 | udev_device_get_sysattr_value(parent, "idProduct"); | |
111 | if (strcmp(USB_VENDOR, idVendor) | |
112 | || strcmp(USB_PRODUCT, idProduct)) | |
113 | continue; | |
114 | ||
115 | const char *iSerial = | |
116 | udev_device_get_sysattr_value(parent, "serial"); | |
117 | const char *iProduct = | |
118 | udev_device_get_sysattr_value(parent, "product"); | |
119 | ||
120 | char path[32]; | |
121 | snprintf(path, sizeof(path), "/dev/%s", sysname); | |
122 | conn = path; | |
123 | ||
124 | size_t s = strcspn(iProduct, " "); | |
125 | char product[32]; | |
126 | char manufacturer[32]; | |
127 | if (s > sizeof(product) || | |
128 | strlen(iProduct) - s > sizeof(manufacturer)) { | |
129 | sr_err("Could not parse iProduct: %s.", iProduct); | |
130 | continue; | |
131 | } | |
132 | strncpy(product, iProduct, s); | |
133 | product[s] = 0; | |
134 | strcpy(manufacturer, iProduct + s + 1); | |
135 | ||
136 | //Create the device context and set its params | |
137 | struct dev_context *devc; | |
138 | devc = g_malloc0(sizeof(struct dev_context)); | |
139 | ||
140 | if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) { | |
141 | sr_err("Invalid iSerial: %s.", iSerial); | |
142 | g_free(devc); | |
143 | return devices; | |
144 | } | |
145 | ||
146 | char hwrev[32]; | |
147 | sprintf(hwrev, "r%d", devc->hwrev); | |
148 | devc->ctlbase1 = 0; | |
149 | devc->protocol_trigger.spimode = 0; | |
150 | for (i = 0; i < 4; i++) { | |
151 | devc->protocol_trigger.word[i] = 0; | |
152 | devc->protocol_trigger.mask[i] = 0xff; | |
153 | } | |
154 | ||
155 | devc->serial = sr_serial_dev_inst_new(conn, serialcomm); | |
156 | ||
157 | struct sr_dev_inst *sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
158 | sdi->status = SR_ST_INACTIVE; | |
159 | sdi->vendor = g_strdup(manufacturer); | |
160 | sdi->model = g_strdup(product); | |
161 | sdi->version = g_strdup(hwrev); | |
162 | sdi->priv = devc; | |
163 | ||
164 | for (i = 0; i < ARRAY_SIZE(channel_names); i++) { | |
165 | chtype = (i == 0) ? SR_CHANNEL_ANALOG : SR_CHANNEL_LOGIC; | |
166 | sr_channel_new(sdi, i, chtype, TRUE, channel_names[i]); | |
167 | } | |
168 | } | |
169 | ||
170 | return std_scan_complete(di, devices); | |
171 | } | |
172 | ||
173 | static int dev_open(struct sr_dev_inst *sdi) | |
174 | { | |
175 | int ret; | |
176 | struct dev_context *devc; | |
177 | ||
178 | devc = sdi->priv; | |
179 | ||
180 | if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK) | |
181 | return SR_ERR; | |
182 | ||
183 | sdi->status = SR_ST_ACTIVE; | |
184 | ||
185 | /* FIXME: discard serial buffer */ | |
186 | mso_check_trigger(devc->serial, &devc->trigger_state); | |
187 | sr_dbg("Trigger state: 0x%x.", devc->trigger_state); | |
188 | ||
189 | ret = mso_reset_adc(sdi); | |
190 | if (ret != SR_OK) | |
191 | return ret; | |
192 | ||
193 | mso_check_trigger(devc->serial, &devc->trigger_state); | |
194 | sr_dbg("Trigger state: 0x%x.", devc->trigger_state); | |
195 | ||
196 | // ret = mso_reset_fsm(sdi); | |
197 | // if (ret != SR_OK) | |
198 | // return ret; | |
199 | // return SR_ERR; | |
200 | ||
201 | return SR_OK; | |
202 | } | |
203 | ||
204 | static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
205 | const struct sr_channel_group *cg) | |
206 | { | |
207 | struct dev_context *devc; | |
208 | ||
209 | (void)cg; | |
210 | ||
211 | if (!sdi) | |
212 | return SR_ERR_ARG; | |
213 | ||
214 | devc = sdi->priv; | |
215 | ||
216 | switch (key) { | |
217 | case SR_CONF_SAMPLERATE: | |
218 | *data = g_variant_new_uint64(devc->cur_rate); | |
219 | break; | |
220 | default: | |
221 | return SR_ERR_NA; | |
222 | } | |
223 | ||
224 | return SR_OK; | |
225 | } | |
226 | ||
227 | static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi, | |
228 | const struct sr_channel_group *cg) | |
229 | { | |
230 | int ret; | |
231 | struct dev_context *devc; | |
232 | uint64_t num_samples; | |
233 | const char *slope; | |
234 | int trigger_pos; | |
235 | double pos; | |
236 | ||
237 | (void)cg; | |
238 | ||
239 | devc = sdi->priv; | |
240 | ||
241 | if (sdi->status != SR_ST_ACTIVE) | |
242 | return SR_ERR_DEV_CLOSED; | |
243 | ||
244 | switch (key) { | |
245 | case SR_CONF_SAMPLERATE: | |
246 | // FIXME | |
247 | return mso_configure_rate(sdi, g_variant_get_uint64(data)); | |
248 | ret = SR_OK; | |
249 | break; | |
250 | case SR_CONF_LIMIT_SAMPLES: | |
251 | num_samples = g_variant_get_uint64(data); | |
252 | if (num_samples != 1024) { | |
253 | sr_err("Only 1024 samples are supported."); | |
254 | ret = SR_ERR_ARG; | |
255 | } else { | |
256 | devc->limit_samples = num_samples; | |
257 | ret = SR_OK; | |
258 | } | |
259 | break; | |
260 | case SR_CONF_CAPTURE_RATIO: | |
261 | ret = SR_OK; | |
262 | break; | |
263 | case SR_CONF_TRIGGER_SLOPE: | |
264 | slope = g_variant_get_string(data, NULL); | |
265 | ||
266 | if (!slope || !(slope[0] == 'f' || slope[0] == 'r')) | |
267 | sr_err("Invalid trigger slope"); | |
268 | ret = SR_ERR_ARG; | |
269 | } else { | |
270 | devc->trigger_slope = (slope[0] == 'r') | |
271 | ? SLOPE_POSITIVE : SLOPE_NEGATIVE; | |
272 | ret = SR_OK; | |
273 | } | |
274 | break; | |
275 | case SR_CONF_HORIZ_TRIGGERPOS: | |
276 | pos = g_variant_get_double(data); | |
277 | if (pos < 0 || pos > 255) { | |
278 | sr_err("Trigger position (%f) should be between 0 and 255.", pos); | |
279 | ret = SR_ERR_ARG; | |
280 | } else { | |
281 | trigger_pos = (int)pos; | |
282 | devc->trigger_holdoff[0] = trigger_pos & 0xff; | |
283 | ret = SR_OK; | |
284 | } | |
285 | break; | |
286 | case SR_CONF_RLE: | |
287 | ret = SR_OK; | |
288 | break; | |
289 | default: | |
290 | ret = SR_ERR_NA; | |
291 | break; | |
292 | } | |
293 | ||
294 | return ret; | |
295 | } | |
296 | ||
297 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
298 | const struct sr_channel_group *cg) | |
299 | { | |
300 | GVariant *gvar; | |
301 | GVariantBuilder gvb; | |
302 | ||
303 | (void)cg; | |
304 | (void)sdi; | |
305 | ||
306 | switch (key) { | |
307 | case SR_CONF_DEVICE_OPTIONS: | |
308 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
309 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
310 | break; | |
311 | case SR_CONF_SAMPLERATE: | |
312 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
313 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
314 | ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
315 | g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar); | |
316 | *data = g_variant_builder_end(&gvb); | |
317 | break; | |
318 | case SR_CONF_TRIGGER_TYPE: | |
319 | *data = g_variant_new_string(TRIGGER_TYPE); | |
320 | break; | |
321 | default: | |
322 | return SR_ERR_NA; | |
323 | } | |
324 | ||
325 | return SR_OK; | |
326 | } | |
327 | ||
328 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
329 | { | |
330 | struct dev_context *devc; | |
331 | int ret = SR_ERR; | |
332 | ||
333 | if (sdi->status != SR_ST_ACTIVE) | |
334 | return SR_ERR_DEV_CLOSED; | |
335 | ||
336 | devc = sdi->priv; | |
337 | ||
338 | if (mso_configure_channels(sdi) != SR_OK) { | |
339 | sr_err("Failed to configure channels."); | |
340 | return SR_ERR; | |
341 | } | |
342 | ||
343 | /* FIXME: No need to do full reconfigure every time */ | |
344 | // ret = mso_reset_fsm(sdi); | |
345 | // if (ret != SR_OK) | |
346 | // return ret; | |
347 | ||
348 | /* FIXME: ACDC Mode */ | |
349 | devc->ctlbase1 &= 0x7f; | |
350 | // devc->ctlbase1 |= devc->acdcmode; | |
351 | ||
352 | ret = mso_configure_rate(sdi, devc->cur_rate); | |
353 | if (ret != SR_OK) | |
354 | return ret; | |
355 | ||
356 | /* set dac offset */ | |
357 | ret = mso_dac_out(sdi, devc->dac_offset); | |
358 | if (ret != SR_OK) | |
359 | return ret; | |
360 | ||
361 | ret = mso_configure_threshold_level(sdi); | |
362 | if (ret != SR_OK) | |
363 | return ret; | |
364 | ||
365 | ret = mso_configure_trigger(sdi); | |
366 | if (ret != SR_OK) | |
367 | return ret; | |
368 | ||
369 | /* END of config hardware part */ | |
370 | ret = mso_arm(sdi); | |
371 | if (ret != SR_OK) | |
372 | return ret; | |
373 | ||
374 | /* Start acquisition on the device. */ | |
375 | mso_check_trigger(devc->serial, &devc->trigger_state); | |
376 | ret = mso_check_trigger(devc->serial, NULL); | |
377 | if (ret != SR_OK) | |
378 | return ret; | |
379 | ||
380 | /* Reset trigger state. */ | |
381 | devc->trigger_state = 0x00; | |
382 | ||
383 | std_session_send_df_header(sdi); | |
384 | ||
385 | /* Our first channel is analog, the other 8 are of type 'logic'. */ | |
386 | /* TODO. */ | |
387 | ||
388 | serial_source_add(sdi->session, devc->serial, G_IO_IN, -1, | |
389 | mso_receive_data, sdi); | |
390 | ||
391 | return SR_OK; | |
392 | } | |
393 | ||
394 | /* This stops acquisition on ALL devices, ignoring dev_index. */ | |
395 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
396 | { | |
397 | stop_acquisition(sdi); | |
398 | ||
399 | return SR_OK; | |
400 | } | |
401 | ||
402 | static struct sr_dev_driver link_mso19_driver_info = { | |
403 | .name = "link-mso19", | |
404 | .longname = "Link Instruments MSO-19", | |
405 | .api_version = 1, | |
406 | .init = std_init, | |
407 | .cleanup = std_cleanup, | |
408 | .scan = scan, | |
409 | .dev_list = std_dev_list, | |
410 | .config_get = config_get, | |
411 | .config_set = config_set, | |
412 | .config_list = config_list, | |
413 | .dev_open = dev_open, | |
414 | .dev_close = std_serial_dev_close, | |
415 | .dev_acquisition_start = dev_acquisition_start, | |
416 | .dev_acquisition_stop = dev_acquisition_stop, | |
417 | .context = NULL, | |
418 | }; | |
419 | SR_REGISTER_DEV_DRIVER(link_mso19_driver_info); |