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1 | /* | |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> | |
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 3 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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <stdlib.h> | |
21 | #include <stdio.h> | |
22 | #include <sys/types.h> | |
23 | #include <dirent.h> | |
24 | #include <string.h> | |
25 | #include <glib.h> | |
26 | #include "config.h" /* Needed for HAVE_LIBUSB_1_0 and others. */ | |
27 | #include "libsigrok.h" | |
28 | #include "libsigrok-internal.h" | |
29 | ||
30 | /* Message logging helpers with driver-specific prefix string. */ | |
31 | #define DRIVER_LOG_DOMAIN "hwdriver: " | |
32 | #define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args) | |
33 | #define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args) | |
34 | #define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args) | |
35 | #define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args) | |
36 | #define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args) | |
37 | #define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args) | |
38 | ||
39 | /** | |
40 | * @file | |
41 | * | |
42 | * Hardware driver handling in libsigrok. | |
43 | */ | |
44 | ||
45 | /** | |
46 | * @defgroup grp_driver Hardware drivers | |
47 | * | |
48 | * Hardware driver handling in libsigrok. | |
49 | * | |
50 | * @{ | |
51 | */ | |
52 | ||
53 | static struct sr_config_info sr_config_info_data[] = { | |
54 | {SR_CONF_CONN, SR_T_CHAR, "conn", | |
55 | "Connection", NULL}, | |
56 | {SR_CONF_SERIALCOMM, SR_T_CHAR, "serialcomm", | |
57 | "Serial communication", NULL}, | |
58 | {SR_CONF_SAMPLERATE, SR_T_UINT64, "samplerate", | |
59 | "Sample rate", NULL}, | |
60 | {SR_CONF_CAPTURE_RATIO, SR_T_UINT64, "captureratio", | |
61 | "Pre-trigger capture ratio", NULL}, | |
62 | {SR_CONF_PATTERN_MODE, SR_T_CHAR, "pattern", | |
63 | "Pattern generator mode", NULL}, | |
64 | {SR_CONF_RLE, SR_T_BOOL, "rle", | |
65 | "Run Length Encoding", NULL}, | |
66 | {SR_CONF_TRIGGER_SLOPE, SR_T_UINT64, "triggerslope", | |
67 | "Trigger slope", NULL}, | |
68 | {SR_CONF_TRIGGER_SOURCE, SR_T_CHAR, "triggersource", | |
69 | "Trigger source", NULL}, | |
70 | {SR_CONF_HORIZ_TRIGGERPOS, SR_T_FLOAT, "horiz_triggerpos", | |
71 | "Horizontal trigger position", NULL}, | |
72 | {SR_CONF_BUFFERSIZE, SR_T_UINT64, "buffersize", | |
73 | "Buffer size", NULL}, | |
74 | {SR_CONF_TIMEBASE, SR_T_RATIONAL_PERIOD, "timebase", | |
75 | "Time base", NULL}, | |
76 | {SR_CONF_FILTER, SR_T_CHAR, "filter", | |
77 | "Filter targets", NULL}, | |
78 | {SR_CONF_VDIV, SR_T_RATIONAL_VOLT, "vdiv", | |
79 | "Volts/div", NULL}, | |
80 | {SR_CONF_COUPLING, SR_T_CHAR, "coupling", | |
81 | "Coupling", NULL}, | |
82 | {0, 0, NULL, NULL, NULL}, | |
83 | }; | |
84 | ||
85 | /** @cond PRIVATE */ | |
86 | #ifdef HAVE_HW_BRYMEN_DMM | |
87 | extern SR_PRIV struct sr_dev_driver brymen_bm857_driver_info; | |
88 | #endif | |
89 | #ifdef HAVE_HW_COLEAD_SLM | |
90 | extern SR_PRIV struct sr_dev_driver colead_slm_driver_info; | |
91 | #endif | |
92 | #ifdef HAVE_LA_DEMO | |
93 | extern SR_PRIV struct sr_dev_driver demo_driver_info; | |
94 | #endif | |
95 | #ifdef HAVE_HW_LASCAR_EL_USB | |
96 | extern SR_PRIV struct sr_dev_driver lascar_el_usb_driver_info; | |
97 | #endif | |
98 | #ifdef HAVE_HW_MIC_985XX | |
99 | extern SR_PRIV struct sr_dev_driver mic_98581_driver_info; | |
100 | extern SR_PRIV struct sr_dev_driver mic_98583_driver_info; | |
101 | #endif | |
102 | #ifdef HAVE_HW_NEXUS_OSCIPRIME | |
103 | extern SR_PRIV struct sr_dev_driver nexus_osciprime_driver_info; | |
104 | #endif | |
105 | #ifdef HAVE_LA_OLS | |
106 | extern SR_PRIV struct sr_dev_driver ols_driver_info; | |
107 | #endif | |
108 | #ifdef HAVE_HW_RIGOL_DS1XX2 | |
109 | extern SR_PRIV struct sr_dev_driver rigol_ds1xx2_driver_info; | |
110 | #endif | |
111 | #ifdef HAVE_HW_TONDAJ_SL_814 | |
112 | extern SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info; | |
113 | #endif | |
114 | #ifdef HAVE_HW_VICTOR_DMM | |
115 | extern SR_PRIV struct sr_dev_driver victor_dmm_driver_info; | |
116 | #endif | |
117 | #ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE | |
118 | extern SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info; | |
119 | #endif | |
120 | #ifdef HAVE_LA_ASIX_SIGMA | |
121 | extern SR_PRIV struct sr_dev_driver asix_sigma_driver_info; | |
122 | #endif | |
123 | #ifdef HAVE_LA_CHRONOVU_LA8 | |
124 | extern SR_PRIV struct sr_dev_driver chronovu_la8_driver_info; | |
125 | #endif | |
126 | #ifdef HAVE_LA_LINK_MSO19 | |
127 | extern SR_PRIV struct sr_dev_driver link_mso19_driver_info; | |
128 | #endif | |
129 | #ifdef HAVE_HW_ALSA | |
130 | extern SR_PRIV struct sr_dev_driver alsa_driver_info; | |
131 | #endif | |
132 | #ifdef HAVE_LA_FX2LAFW | |
133 | extern SR_PRIV struct sr_dev_driver fx2lafw_driver_info; | |
134 | #endif | |
135 | #ifdef HAVE_HW_HANTEK_DSO | |
136 | extern SR_PRIV struct sr_dev_driver hantek_dso_driver_info; | |
137 | #endif | |
138 | #ifdef HAVE_HW_AGILENT_DMM | |
139 | extern SR_PRIV struct sr_dev_driver agdmm_driver_info; | |
140 | #endif | |
141 | #ifdef HAVE_HW_FLUKE_DMM | |
142 | extern SR_PRIV struct sr_dev_driver flukedmm_driver_info; | |
143 | #endif | |
144 | #ifdef HAVE_HW_SERIAL_DMM | |
145 | extern SR_PRIV struct sr_dev_driver digitek_dt4000zc_driver_info; | |
146 | extern SR_PRIV struct sr_dev_driver tekpower_tp4000zc_driver_info; | |
147 | extern SR_PRIV struct sr_dev_driver metex_me31_driver_info; | |
148 | extern SR_PRIV struct sr_dev_driver peaktech_3410_driver_info; | |
149 | extern SR_PRIV struct sr_dev_driver mastech_mas345_driver_info; | |
150 | extern SR_PRIV struct sr_dev_driver va_va18b_driver_info; | |
151 | extern SR_PRIV struct sr_dev_driver metex_m3640d_driver_info; | |
152 | extern SR_PRIV struct sr_dev_driver peaktech_4370_driver_info; | |
153 | extern SR_PRIV struct sr_dev_driver pce_pce_dm32_driver_info; | |
154 | extern SR_PRIV struct sr_dev_driver radioshack_22_168_driver_info; | |
155 | extern SR_PRIV struct sr_dev_driver radioshack_22_812_driver_info; | |
156 | extern SR_PRIV struct sr_dev_driver voltcraft_vc820_ser_driver_info; | |
157 | extern SR_PRIV struct sr_dev_driver voltcraft_vc840_ser_driver_info; | |
158 | extern SR_PRIV struct sr_dev_driver uni_t_ut61e_ser_driver_info; | |
159 | #endif | |
160 | #ifdef HAVE_HW_UNI_T_DMM | |
161 | extern SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info; | |
162 | extern SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info; | |
163 | #endif | |
164 | /** @endcond */ | |
165 | ||
166 | static struct sr_dev_driver *drivers_list[] = { | |
167 | #ifdef HAVE_HW_BRYMEN_DMM | |
168 | &brymen_bm857_driver_info, | |
169 | #endif | |
170 | #ifdef HAVE_HW_COLEAD_SLM | |
171 | &colead_slm_driver_info, | |
172 | #endif | |
173 | #ifdef HAVE_LA_DEMO | |
174 | &demo_driver_info, | |
175 | #endif | |
176 | #ifdef HAVE_HW_LASCAR_EL_USB | |
177 | &lascar_el_usb_driver_info, | |
178 | #endif | |
179 | #ifdef HAVE_HW_MIC_985XX | |
180 | &mic_98581_driver_info, | |
181 | &mic_98583_driver_info, | |
182 | #endif | |
183 | #ifdef HAVE_HW_NEXUS_OSCIPRIME | |
184 | &nexus_osciprime_driver_info, | |
185 | #endif | |
186 | #ifdef HAVE_LA_OLS | |
187 | &ols_driver_info, | |
188 | #endif | |
189 | #ifdef HAVE_HW_RIGOL_DS1XX2 | |
190 | &rigol_ds1xx2_driver_info, | |
191 | #endif | |
192 | #ifdef HAVE_HW_TONDAJ_SL_814 | |
193 | &tondaj_sl_814_driver_info, | |
194 | #endif | |
195 | #ifdef HAVE_HW_VICTOR_DMM | |
196 | &victor_dmm_driver_info, | |
197 | #endif | |
198 | #ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE | |
199 | &zeroplus_logic_cube_driver_info, | |
200 | #endif | |
201 | #ifdef HAVE_LA_ASIX_SIGMA | |
202 | &asix_sigma_driver_info, | |
203 | #endif | |
204 | #ifdef HAVE_LA_CHRONOVU_LA8 | |
205 | &chronovu_la8_driver_info, | |
206 | #endif | |
207 | #ifdef HAVE_LA_LINK_MSO19 | |
208 | &link_mso19_driver_info, | |
209 | #endif | |
210 | #ifdef HAVE_HW_ALSA | |
211 | &alsa_driver_info, | |
212 | #endif | |
213 | #ifdef HAVE_LA_FX2LAFW | |
214 | &fx2lafw_driver_info, | |
215 | #endif | |
216 | #ifdef HAVE_HW_HANTEK_DSO | |
217 | &hantek_dso_driver_info, | |
218 | #endif | |
219 | #ifdef HAVE_HW_AGILENT_DMM | |
220 | &agdmm_driver_info, | |
221 | #endif | |
222 | #ifdef HAVE_HW_FLUKE_DMM | |
223 | &flukedmm_driver_info, | |
224 | #endif | |
225 | #ifdef HAVE_HW_SERIAL_DMM | |
226 | &digitek_dt4000zc_driver_info, | |
227 | &tekpower_tp4000zc_driver_info, | |
228 | &metex_me31_driver_info, | |
229 | &peaktech_3410_driver_info, | |
230 | &mastech_mas345_driver_info, | |
231 | &va_va18b_driver_info, | |
232 | &metex_m3640d_driver_info, | |
233 | &peaktech_4370_driver_info, | |
234 | &pce_pce_dm32_driver_info, | |
235 | &radioshack_22_168_driver_info, | |
236 | &radioshack_22_812_driver_info, | |
237 | &voltcraft_vc820_ser_driver_info, | |
238 | &voltcraft_vc840_ser_driver_info, | |
239 | &uni_t_ut61e_ser_driver_info, | |
240 | #endif | |
241 | #ifdef HAVE_HW_UNI_T_DMM | |
242 | &uni_t_ut61d_driver_info, | |
243 | &voltcraft_vc820_driver_info, | |
244 | #endif | |
245 | NULL, | |
246 | }; | |
247 | ||
248 | /** | |
249 | * Return the list of supported hardware drivers. | |
250 | * | |
251 | * @return Pointer to the NULL-terminated list of hardware driver pointers. | |
252 | */ | |
253 | SR_API struct sr_dev_driver **sr_driver_list(void) | |
254 | { | |
255 | ||
256 | return drivers_list; | |
257 | } | |
258 | ||
259 | /** | |
260 | * Initialize a hardware driver. | |
261 | * | |
262 | * This usually involves memory allocations and variable initializations | |
263 | * within the driver, but _not_ scanning for attached devices. | |
264 | * The API call sr_driver_scan() is used for that. | |
265 | * | |
266 | * @param ctx A libsigrok context object allocated by a previous call to | |
267 | * sr_init(). Must not be NULL. | |
268 | * @param driver The driver to initialize. This must be a pointer to one of | |
269 | * the entries returned by sr_driver_list(). Must not be NULL. | |
270 | * | |
271 | * @return SR_OK upon success, SR_ERR_ARG upon invalid parameters, | |
272 | * SR_ERR_BUG upon internal errors, or another negative error code | |
273 | * upon other errors. | |
274 | */ | |
275 | SR_API int sr_driver_init(struct sr_context *ctx, struct sr_dev_driver *driver) | |
276 | { | |
277 | int ret; | |
278 | ||
279 | if (!ctx) { | |
280 | sr_err("Invalid libsigrok context, can't initialize."); | |
281 | return SR_ERR_ARG; | |
282 | } | |
283 | ||
284 | if (!driver) { | |
285 | sr_err("Invalid driver, can't initialize."); | |
286 | return SR_ERR_ARG; | |
287 | } | |
288 | ||
289 | sr_spew("Initializing driver '%s'.", driver->name); | |
290 | if ((ret = driver->init(ctx)) < 0) | |
291 | sr_err("Failed to initialize the driver: %d.", ret); | |
292 | ||
293 | return ret; | |
294 | } | |
295 | ||
296 | /** | |
297 | * Tell a hardware driver to scan for devices. | |
298 | * | |
299 | * In addition to the detection, the devices that are found are also | |
300 | * initialized automatically. On some devices, this involves a firmware upload, | |
301 | * or other such measures. | |
302 | * | |
303 | * The order in which the system is scanned for devices is not specified. The | |
304 | * caller should not assume or rely on any specific order. | |
305 | * | |
306 | * Before calling sr_driver_scan(), the user must have previously initialized | |
307 | * the driver by calling sr_driver_init(). | |
308 | * | |
309 | * @param driver The driver that should scan. This must be a pointer to one of | |
310 | * the entries returned by sr_driver_list(). Must not be NULL. | |
311 | * @param options A list of 'struct sr_hwopt' options to pass to the driver's | |
312 | * scanner. Can be NULL/empty. | |
313 | * | |
314 | * @return A GSList * of 'struct sr_dev_inst', or NULL if no devices were | |
315 | * found (or errors were encountered). This list must be freed by the | |
316 | * caller using g_slist_free(), but without freeing the data pointed | |
317 | * to in the list. | |
318 | */ | |
319 | SR_API GSList *sr_driver_scan(struct sr_dev_driver *driver, GSList *options) | |
320 | { | |
321 | GSList *l; | |
322 | ||
323 | if (!driver) { | |
324 | sr_err("Invalid driver, can't scan for devices."); | |
325 | return NULL; | |
326 | } | |
327 | ||
328 | if (!driver->priv) { | |
329 | sr_err("Driver not initialized, can't scan for devices."); | |
330 | return NULL; | |
331 | } | |
332 | ||
333 | l = driver->scan(options); | |
334 | ||
335 | sr_spew("Scan of '%s' found %d devices.", driver->name, | |
336 | g_slist_length(l)); | |
337 | ||
338 | return l; | |
339 | } | |
340 | ||
341 | /** @private */ | |
342 | SR_PRIV void sr_hw_cleanup_all(void) | |
343 | { | |
344 | int i; | |
345 | struct sr_dev_driver **drivers; | |
346 | ||
347 | drivers = sr_driver_list(); | |
348 | for (i = 0; drivers[i]; i++) { | |
349 | if (drivers[i]->cleanup) | |
350 | drivers[i]->cleanup(); | |
351 | } | |
352 | } | |
353 | ||
354 | SR_PRIV struct sr_config *sr_config_make(int key, const void *value) | |
355 | { | |
356 | struct sr_config *src; | |
357 | ||
358 | if (!(src = g_try_malloc(sizeof(struct sr_config)))) | |
359 | return NULL; | |
360 | src->key = key; | |
361 | src->value = value; | |
362 | ||
363 | return src; | |
364 | } | |
365 | ||
366 | /** | |
367 | * Returns information about the given driver or device instance. | |
368 | * | |
369 | * @param driver The sr_dev_driver struct to query. | |
370 | * @param key The configuration key (SR_CONF_*). | |
371 | * @param data Pointer where the value will be stored. Must not be NULL. | |
372 | * @param sdi If the key is specific to a device, this must contain a | |
373 | * pointer to the struct sr_dev_inst to be checked. | |
374 | * | |
375 | * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG | |
376 | * may be returned by the driver indicating it doesn't know that key, | |
377 | * but this is not to be flagged as an error by the caller; merely | |
378 | * as an indication that it's not applicable. | |
379 | */ | |
380 | SR_API int sr_config_get(const struct sr_dev_driver *driver, int key, | |
381 | const void **data, const struct sr_dev_inst *sdi) | |
382 | { | |
383 | int ret; | |
384 | ||
385 | if (!driver || !data) | |
386 | return SR_ERR; | |
387 | ||
388 | ret = driver->config_get(key, data, sdi); | |
389 | ||
390 | return ret; | |
391 | } | |
392 | ||
393 | /** | |
394 | * Set a configuration key in a device instance. | |
395 | * | |
396 | * @param sdi The device instance. | |
397 | * @param key The configuration key (SR_CONF_*). | |
398 | * @param value The new value for the key, as a pointer to whatever type | |
399 | * is appropriate for that key. | |
400 | * | |
401 | * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG | |
402 | * may be returned by the driver indicating it doesn't know that key, | |
403 | * but this is not to be flagged as an error by the caller; merely | |
404 | * as an indication that it's not applicable. | |
405 | */ | |
406 | SR_API int sr_config_set(const struct sr_dev_inst *sdi, int key, | |
407 | const void *value) | |
408 | { | |
409 | int ret; | |
410 | ||
411 | if (!sdi || !sdi->driver || !value) | |
412 | return SR_ERR; | |
413 | ||
414 | if (!sdi->driver->config_set) | |
415 | return SR_ERR_ARG; | |
416 | ||
417 | ret = sdi->driver->config_set(key, value, sdi); | |
418 | ||
419 | return ret; | |
420 | } | |
421 | ||
422 | /** | |
423 | * List all possible values for a configuration key. | |
424 | * | |
425 | * @param driver The sr_dev_driver struct to query. | |
426 | * @param key The configuration key (SR_CONF_*). | |
427 | * @param data A pointer to a list of values, in whatever format is | |
428 | * appropriate for that key. | |
429 | * @param sdi If the key is specific to a device, this must contain a | |
430 | * pointer to the struct sr_dev_inst to be checked. | |
431 | * | |
432 | * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG | |
433 | * may be returned by the driver indicating it doesn't know that key, | |
434 | * but this is not to be flagged as an error by the caller; merely | |
435 | * as an indication that it's not applicable. | |
436 | */ | |
437 | SR_API int sr_config_list(const struct sr_dev_driver *driver, int key, | |
438 | const void **data, const struct sr_dev_inst *sdi) | |
439 | { | |
440 | int ret; | |
441 | ||
442 | if (!driver || !data) | |
443 | return SR_ERR; | |
444 | ||
445 | ret = driver->config_list(key, data, sdi); | |
446 | ||
447 | return ret; | |
448 | } | |
449 | ||
450 | /** | |
451 | * Get information about a configuration key. | |
452 | * | |
453 | * @param opt The configuration key. | |
454 | * | |
455 | * @return A pointer to a struct sr_config_info, or NULL if the key | |
456 | * was not found. | |
457 | */ | |
458 | SR_API const struct sr_config_info *sr_config_info_get(int key) | |
459 | { | |
460 | int i; | |
461 | ||
462 | for (i = 0; sr_config_info_data[i].key; i++) { | |
463 | if (sr_config_info_data[i].key == key) | |
464 | return &sr_config_info_data[i]; | |
465 | } | |
466 | ||
467 | return NULL; | |
468 | } | |
469 | ||
470 | /** | |
471 | * Get information about an configuration key, by name. | |
472 | * | |
473 | * @param optname The configuration key. | |
474 | * | |
475 | * @return A pointer to a struct sr_config_info, or NULL if the key | |
476 | * was not found. | |
477 | */ | |
478 | SR_API const struct sr_config_info *sr_config_info_name_get(const char *optname) | |
479 | { | |
480 | int i; | |
481 | ||
482 | for (i = 0; sr_config_info_data[i].key; i++) { | |
483 | if (!strcmp(sr_config_info_data[i].id, optname)) | |
484 | return &sr_config_info_data[i]; | |
485 | } | |
486 | ||
487 | return NULL; | |
488 | } | |
489 | ||
490 | /* Unnecessary level of indirection follows. */ | |
491 | ||
492 | /** @private */ | |
493 | SR_PRIV int sr_source_remove(int fd) | |
494 | { | |
495 | return sr_session_source_remove(fd); | |
496 | } | |
497 | ||
498 | /** @private */ | |
499 | SR_PRIV int sr_source_add(int fd, int events, int timeout, | |
500 | sr_receive_data_callback_t cb, void *cb_data) | |
501 | { | |
502 | return sr_session_source_add(fd, events, timeout, cb, cb_data); | |
503 | } | |
504 | ||
505 | /** @} */ |