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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 drvopts[] = { | |
26 | SR_CONF_OSCILLOSCOPE, | |
27 | SR_CONF_LOGIC_ANALYZER, | |
28 | }; | |
29 | ||
30 | static const uint32_t devopts[] = { | |
31 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, | |
32 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
33 | SR_CONF_TRIGGER_TYPE | SR_CONF_LIST, | |
34 | SR_CONF_TRIGGER_SLOPE | SR_CONF_SET, | |
35 | SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_SET, | |
36 | SR_CONF_CAPTURE_RATIO | SR_CONF_SET, | |
37 | SR_CONF_RLE | SR_CONF_SET, | |
38 | }; | |
39 | ||
40 | /* | |
41 | * Channels are numbered 0 to 7. | |
42 | * | |
43 | * See also: http://www.linkinstruments.com/images/mso19_1113.gif | |
44 | */ | |
45 | static const char *channel_names[] = { | |
46 | /* Note: DSO needs to be first. */ | |
47 | "DSO", "0", "1", "2", "3", "4", "5", "6", "7", | |
48 | }; | |
49 | ||
50 | static const uint64_t samplerates[] = { | |
51 | SR_HZ(100), | |
52 | SR_MHZ(200), | |
53 | SR_HZ(100), | |
54 | }; | |
55 | ||
56 | static const char *trigger_slopes[2] = { | |
57 | "r", "f", | |
58 | }; | |
59 | ||
60 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
61 | { | |
62 | int i; | |
63 | GSList *devices = NULL; | |
64 | const char *conn = NULL; | |
65 | const char *serialcomm = NULL; | |
66 | GSList *l; | |
67 | struct sr_config *src; | |
68 | struct udev *udev; | |
69 | int chtype; | |
70 | ||
71 | for (l = options; l; l = l->next) { | |
72 | src = l->data; | |
73 | switch (src->key) { | |
74 | case SR_CONF_CONN: | |
75 | conn = g_variant_get_string(src->data, NULL); | |
76 | break; | |
77 | case SR_CONF_SERIALCOMM: | |
78 | serialcomm = g_variant_get_string(src->data, NULL); | |
79 | break; | |
80 | } | |
81 | } | |
82 | if (!conn) | |
83 | conn = SERIALCONN; | |
84 | if (!serialcomm) | |
85 | serialcomm = SERIALCOMM; | |
86 | ||
87 | udev = udev_new(); | |
88 | if (!udev) { | |
89 | sr_err("Failed to initialize udev."); | |
90 | } | |
91 | ||
92 | struct udev_enumerate *enumerate = udev_enumerate_new(udev); | |
93 | udev_enumerate_add_match_subsystem(enumerate, "usb-serial"); | |
94 | udev_enumerate_scan_devices(enumerate); | |
95 | struct udev_list_entry *devs = udev_enumerate_get_list_entry(enumerate); | |
96 | struct udev_list_entry *dev_list_entry; | |
97 | for (dev_list_entry = devs; | |
98 | dev_list_entry != NULL; | |
99 | dev_list_entry = udev_list_entry_get_next(dev_list_entry)) { | |
100 | const char *syspath = udev_list_entry_get_name(dev_list_entry); | |
101 | struct udev_device *dev = | |
102 | udev_device_new_from_syspath(udev, syspath); | |
103 | const char *sysname = udev_device_get_sysname(dev); | |
104 | struct udev_device *parent = | |
105 | udev_device_get_parent_with_subsystem_devtype(dev, "usb", | |
106 | "usb_device"); | |
107 | ||
108 | if (!parent) { | |
109 | sr_err("Unable to find parent usb device for %s", | |
110 | sysname); | |
111 | continue; | |
112 | } | |
113 | ||
114 | const char *idVendor = | |
115 | udev_device_get_sysattr_value(parent, "idVendor"); | |
116 | const char *idProduct = | |
117 | udev_device_get_sysattr_value(parent, "idProduct"); | |
118 | if (strcmp(USB_VENDOR, idVendor) | |
119 | || strcmp(USB_PRODUCT, idProduct)) | |
120 | continue; | |
121 | ||
122 | const char *iSerial = | |
123 | udev_device_get_sysattr_value(parent, "serial"); | |
124 | const char *iProduct = | |
125 | udev_device_get_sysattr_value(parent, "product"); | |
126 | ||
127 | char path[32]; | |
128 | snprintf(path, sizeof(path), "/dev/%s", sysname); | |
129 | conn = path; | |
130 | ||
131 | size_t s = strcspn(iProduct, " "); | |
132 | char product[32]; | |
133 | char manufacturer[32]; | |
134 | if (s > sizeof(product) || | |
135 | strlen(iProduct) - s > sizeof(manufacturer)) { | |
136 | sr_err("Could not parse iProduct: %s.", iProduct); | |
137 | continue; | |
138 | } | |
139 | strncpy(product, iProduct, s); | |
140 | product[s] = 0; | |
141 | strcpy(manufacturer, iProduct + s + 1); | |
142 | ||
143 | //Create the device context and set its params | |
144 | struct dev_context *devc; | |
145 | devc = g_malloc0(sizeof(struct dev_context)); | |
146 | ||
147 | if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) { | |
148 | sr_err("Invalid iSerial: %s.", iSerial); | |
149 | g_free(devc); | |
150 | return devices; | |
151 | } | |
152 | ||
153 | char hwrev[32]; | |
154 | sprintf(hwrev, "r%d", devc->hwrev); | |
155 | devc->ctlbase1 = 0; | |
156 | devc->protocol_trigger.spimode = 0; | |
157 | for (i = 0; i < 4; i++) { | |
158 | devc->protocol_trigger.word[i] = 0; | |
159 | devc->protocol_trigger.mask[i] = 0xff; | |
160 | } | |
161 | ||
162 | devc->serial = sr_serial_dev_inst_new(conn, serialcomm); | |
163 | ||
164 | struct sr_dev_inst *sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
165 | sdi->status = SR_ST_INACTIVE; | |
166 | sdi->vendor = g_strdup(manufacturer); | |
167 | sdi->model = g_strdup(product); | |
168 | sdi->version = g_strdup(hwrev); | |
169 | sdi->priv = devc; | |
170 | ||
171 | for (i = 0; i < ARRAY_SIZE(channel_names); i++) { | |
172 | chtype = (i == 0) ? SR_CHANNEL_ANALOG : SR_CHANNEL_LOGIC; | |
173 | sr_channel_new(sdi, i, chtype, TRUE, channel_names[i]); | |
174 | } | |
175 | } | |
176 | ||
177 | return std_scan_complete(di, devices); | |
178 | } | |
179 | ||
180 | static int dev_open(struct sr_dev_inst *sdi) | |
181 | { | |
182 | int ret; | |
183 | struct dev_context *devc; | |
184 | ||
185 | devc = sdi->priv; | |
186 | ||
187 | if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK) | |
188 | return SR_ERR; | |
189 | ||
190 | /* FIXME: discard serial buffer */ | |
191 | mso_check_trigger(devc->serial, &devc->trigger_state); | |
192 | sr_dbg("Trigger state: 0x%x.", devc->trigger_state); | |
193 | ||
194 | ret = mso_reset_adc(sdi); | |
195 | if (ret != SR_OK) | |
196 | return ret; | |
197 | ||
198 | mso_check_trigger(devc->serial, &devc->trigger_state); | |
199 | sr_dbg("Trigger state: 0x%x.", devc->trigger_state); | |
200 | ||
201 | // ret = mso_reset_fsm(sdi); | |
202 | // if (ret != SR_OK) | |
203 | // return ret; | |
204 | // return SR_ERR; | |
205 | ||
206 | return SR_OK; | |
207 | } | |
208 | ||
209 | static int config_get(int key, GVariant **data, | |
210 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
211 | { | |
212 | struct dev_context *devc; | |
213 | ||
214 | (void)cg; | |
215 | ||
216 | if (!sdi) | |
217 | return SR_ERR_ARG; | |
218 | ||
219 | devc = sdi->priv; | |
220 | ||
221 | switch (key) { | |
222 | case SR_CONF_SAMPLERATE: | |
223 | *data = g_variant_new_uint64(devc->cur_rate); | |
224 | break; | |
225 | default: | |
226 | return SR_ERR_NA; | |
227 | } | |
228 | ||
229 | return SR_OK; | |
230 | } | |
231 | ||
232 | static int config_set(int key, GVariant *data, | |
233 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
234 | { | |
235 | struct dev_context *devc; | |
236 | uint64_t num_samples; | |
237 | const char *slope; | |
238 | int trigger_pos; | |
239 | double pos; | |
240 | ||
241 | (void)cg; | |
242 | ||
243 | devc = sdi->priv; | |
244 | ||
245 | switch (key) { | |
246 | case SR_CONF_SAMPLERATE: | |
247 | // FIXME | |
248 | return mso_configure_rate(sdi, g_variant_get_uint64(data)); | |
249 | case SR_CONF_LIMIT_SAMPLES: | |
250 | num_samples = g_variant_get_uint64(data); | |
251 | if (num_samples != 1024) { | |
252 | sr_err("Only 1024 samples are supported."); | |
253 | return SR_ERR_ARG; | |
254 | } | |
255 | devc->limit_samples = num_samples; | |
256 | break; | |
257 | case SR_CONF_CAPTURE_RATIO: | |
258 | break; | |
259 | case SR_CONF_TRIGGER_SLOPE: | |
260 | if ((idx = std_str_idx(data, ARRAY_AND_SIZE(trigger_slopes))) < 0) | |
261 | return SR_ERR_ARG; | |
262 | devc->trigger_slope = idx; | |
263 | break; | |
264 | case SR_CONF_HORIZ_TRIGGERPOS: | |
265 | pos = g_variant_get_double(data); | |
266 | if (pos < 0 || pos > 255) { | |
267 | sr_err("Trigger position (%f) should be between 0 and 255.", pos); | |
268 | return SR_ERR_ARG; | |
269 | } | |
270 | trigger_pos = (int)pos; | |
271 | devc->trigger_holdoff[0] = trigger_pos & 0xff; | |
272 | break; | |
273 | case SR_CONF_RLE: | |
274 | break; | |
275 | default: | |
276 | return SR_ERR_NA; | |
277 | } | |
278 | ||
279 | return SR_OK; | |
280 | } | |
281 | ||
282 | static int config_list(int key, GVariant **data, | |
283 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
284 | { | |
285 | switch (key) { | |
286 | case SR_CONF_DEVICE_OPTIONS: | |
287 | return STD_CONFIG_LIST(key, data, sdi, cg, NO_OPTS, drvopts, devopts); | |
288 | case SR_CONF_SAMPLERATE: | |
289 | *data = std_gvar_samplerates_steps(ARRAY_AND_SIZE(samplerates)); | |
290 | break; | |
291 | case SR_CONF_TRIGGER_TYPE: | |
292 | *data = g_variant_new_string(TRIGGER_TYPE); | |
293 | break; | |
294 | default: | |
295 | return SR_ERR_NA; | |
296 | } | |
297 | ||
298 | return SR_OK; | |
299 | } | |
300 | ||
301 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
302 | { | |
303 | struct dev_context *devc; | |
304 | int ret = SR_ERR; | |
305 | ||
306 | devc = sdi->priv; | |
307 | ||
308 | if (mso_configure_channels(sdi) != SR_OK) { | |
309 | sr_err("Failed to configure channels."); | |
310 | return SR_ERR; | |
311 | } | |
312 | ||
313 | /* FIXME: No need to do full reconfigure every time */ | |
314 | // ret = mso_reset_fsm(sdi); | |
315 | // if (ret != SR_OK) | |
316 | // return ret; | |
317 | ||
318 | /* FIXME: ACDC Mode */ | |
319 | devc->ctlbase1 &= 0x7f; | |
320 | // devc->ctlbase1 |= devc->acdcmode; | |
321 | ||
322 | ret = mso_configure_rate(sdi, devc->cur_rate); | |
323 | if (ret != SR_OK) | |
324 | return ret; | |
325 | ||
326 | /* set dac offset */ | |
327 | ret = mso_dac_out(sdi, devc->dac_offset); | |
328 | if (ret != SR_OK) | |
329 | return ret; | |
330 | ||
331 | ret = mso_configure_threshold_level(sdi); | |
332 | if (ret != SR_OK) | |
333 | return ret; | |
334 | ||
335 | ret = mso_configure_trigger(sdi); | |
336 | if (ret != SR_OK) | |
337 | return ret; | |
338 | ||
339 | /* END of config hardware part */ | |
340 | ret = mso_arm(sdi); | |
341 | if (ret != SR_OK) | |
342 | return ret; | |
343 | ||
344 | /* Start acquisition on the device. */ | |
345 | mso_check_trigger(devc->serial, &devc->trigger_state); | |
346 | ret = mso_check_trigger(devc->serial, NULL); | |
347 | if (ret != SR_OK) | |
348 | return ret; | |
349 | ||
350 | /* Reset trigger state. */ | |
351 | devc->trigger_state = 0x00; | |
352 | ||
353 | std_session_send_df_header(sdi); | |
354 | ||
355 | /* Our first channel is analog, the other 8 are of type 'logic'. */ | |
356 | /* TODO. */ | |
357 | ||
358 | serial_source_add(sdi->session, devc->serial, G_IO_IN, -1, | |
359 | mso_receive_data, sdi); | |
360 | ||
361 | return SR_OK; | |
362 | } | |
363 | ||
364 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
365 | { | |
366 | stop_acquisition(sdi); | |
367 | ||
368 | return SR_OK; | |
369 | } | |
370 | ||
371 | static struct sr_dev_driver link_mso19_driver_info = { | |
372 | .name = "link-mso19", | |
373 | .longname = "Link Instruments MSO-19", | |
374 | .api_version = 1, | |
375 | .init = std_init, | |
376 | .cleanup = std_cleanup, | |
377 | .scan = scan, | |
378 | .dev_list = std_dev_list, | |
379 | .dev_clear = std_dev_clear, | |
380 | .config_get = config_get, | |
381 | .config_set = config_set, | |
382 | .config_list = config_list, | |
383 | .dev_open = dev_open, | |
384 | .dev_close = std_serial_dev_close, | |
385 | .dev_acquisition_start = dev_acquisition_start, | |
386 | .dev_acquisition_stop = dev_acquisition_stop, | |
387 | .context = NULL, | |
388 | }; | |
389 | SR_REGISTER_DEV_DRIVER(link_mso19_driver_info); |