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a1bb33af UH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
c73d2ea4 | 4 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> |
a1bb33af 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 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> | |
45c59c8b BV |
26 | #include "libsigrok.h" |
27 | #include "libsigrok-internal.h" | |
a1bb33af | 28 | |
393fb9cb UH |
29 | /** |
30 | * @file | |
31 | * | |
32 | * Hardware driver handling in libsigrok. | |
33 | */ | |
34 | ||
7b870c38 UH |
35 | /** |
36 | * @defgroup grp_driver Hardware drivers | |
37 | * | |
38 | * Hardware driver handling in libsigrok. | |
39 | * | |
40 | * @{ | |
41 | */ | |
8bfdc8c4 BV |
42 | |
43 | /* Driver scanning options. */ | |
15cb43d6 | 44 | static struct sr_hwcap_option sr_drvopts[] = { |
b159add3 BV |
45 | {SR_HWOPT_MODEL, SR_T_KEYVALUE, "Model", "model"}, |
46 | {SR_HWOPT_CONN, SR_T_CHAR, "Connection", "conn"}, | |
47 | {SR_HWOPT_SERIALCOMM, SR_T_CHAR, "Serial communication", "serialcomm"}, | |
8bfdc8c4 BV |
48 | {0, 0, NULL, NULL}, |
49 | }; | |
50 | ||
51 | /* Device instance options. */ | |
15cb43d6 | 52 | static struct sr_hwcap_option sr_devopts[] = { |
5a2326a7 UH |
53 | {SR_HWCAP_SAMPLERATE, SR_T_UINT64, "Sample rate", "samplerate"}, |
54 | {SR_HWCAP_CAPTURE_RATIO, SR_T_UINT64, "Pre-trigger capture ratio", "captureratio"}, | |
eb0a3731 | 55 | {SR_HWCAP_PATTERN_MODE, SR_T_CHAR, "Pattern generator mode", "pattern"}, |
4d436e71 | 56 | {SR_HWCAP_RLE, SR_T_BOOL, "Run Length Encoding", "rle"}, |
0fe11789 BV |
57 | {SR_HWCAP_TRIGGER_SLOPE, SR_T_UINT64, "Trigger slope", "triggerslope"}, |
58 | {SR_HWCAP_TRIGGER_SOURCE, SR_T_CHAR, "Trigger source", "triggersource"}, | |
59 | {SR_HWCAP_HORIZ_TRIGGERPOS, SR_T_FLOAT, "Horizontal trigger position", | |
60 | "horiz_triggerpos"}, | |
61 | {SR_HWCAP_BUFFERSIZE, SR_T_UINT64, "Buffer size", "buffersize"}, | |
c1e48618 | 62 | {SR_HWCAP_TIMEBASE, SR_T_RATIONAL_PERIOD, "Time base", "timebase"}, |
3c4976c9 | 63 | {SR_HWCAP_FILTER, SR_T_CHAR, "Filter targets", "filter"}, |
bd8db307 | 64 | {SR_HWCAP_VDIV, SR_T_RATIONAL_VOLT, "Volts/div", "vdiv"}, |
e1c8b2ab | 65 | {SR_HWCAP_COUPLING, SR_T_CHAR, "Coupling", "coupling"}, |
49d0ce50 | 66 | {0, 0, NULL, NULL}, |
a1bb33af UH |
67 | }; |
68 | ||
b4bd7088 | 69 | /** @cond PRIVATE */ |
a61b0e6a | 70 | #ifdef HAVE_LA_DEMO |
c09f0b57 | 71 | extern SR_PRIV struct sr_dev_driver demo_driver_info; |
a61b0e6a | 72 | #endif |
960a75e4 | 73 | #ifdef HAVE_LA_OLS |
c09f0b57 | 74 | extern SR_PRIV struct sr_dev_driver ols_driver_info; |
960a75e4 UH |
75 | #endif |
76 | #ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE | |
c09f0b57 | 77 | extern SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info; |
960a75e4 | 78 | #endif |
5b907f9b | 79 | #ifdef HAVE_LA_ASIX_SIGMA |
c09f0b57 | 80 | extern SR_PRIV struct sr_dev_driver asix_sigma_driver_info; |
5b907f9b | 81 | #endif |
f4314d7e | 82 | #ifdef HAVE_LA_CHRONOVU_LA8 |
c09f0b57 | 83 | extern SR_PRIV struct sr_dev_driver chronovu_la8_driver_info; |
f4314d7e | 84 | #endif |
bffed4fc | 85 | #ifdef HAVE_LA_LINK_MSO19 |
c09f0b57 | 86 | extern SR_PRIV struct sr_dev_driver link_mso19_driver_info; |
bffed4fc | 87 | #endif |
6ed4f044 | 88 | #ifdef HAVE_LA_ALSA |
c09f0b57 | 89 | extern SR_PRIV struct sr_dev_driver alsa_driver_info; |
6ed4f044 | 90 | #endif |
f302a082 | 91 | #ifdef HAVE_LA_FX2LAFW |
c09f0b57 | 92 | extern SR_PRIV struct sr_dev_driver fx2lafw_driver_info; |
f302a082 | 93 | #endif |
3b533202 | 94 | #ifdef HAVE_HW_HANTEK_DSO |
62bb8840 | 95 | extern SR_PRIV struct sr_dev_driver hantek_dso_driver_info; |
3b533202 | 96 | #endif |
ca3d84cc BV |
97 | #ifdef HAVE_HW_GENERICDMM |
98 | extern SR_PRIV struct sr_dev_driver genericdmm_driver_info; | |
99 | #endif | |
e93cdf42 BV |
100 | #ifdef HAVE_HW_AGILENT_DMM |
101 | extern SR_PRIV struct sr_dev_driver agdmm_driver_info; | |
102 | #endif | |
e7edd64f BV |
103 | #ifdef HAVE_HW_FLUKE_DMM |
104 | extern SR_PRIV struct sr_dev_driver flukedmm_driver_info; | |
105 | #endif | |
d375b3c3 AG |
106 | #ifdef HAVE_HW_RADIOSHACK_DMM |
107 | extern SR_PRIV struct sr_dev_driver radioshackdmm_driver_info; | |
108 | #endif | |
b4bd7088 | 109 | /** @endcond */ |
6ed4f044 | 110 | |
c09f0b57 | 111 | static struct sr_dev_driver *drivers_list[] = { |
a61b0e6a | 112 | #ifdef HAVE_LA_DEMO |
c09f0b57 | 113 | &demo_driver_info, |
a61b0e6a | 114 | #endif |
960a75e4 | 115 | #ifdef HAVE_LA_OLS |
c09f0b57 | 116 | &ols_driver_info, |
960a75e4 UH |
117 | #endif |
118 | #ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE | |
c09f0b57 | 119 | &zeroplus_logic_cube_driver_info, |
960a75e4 | 120 | #endif |
5b907f9b | 121 | #ifdef HAVE_LA_ASIX_SIGMA |
c09f0b57 | 122 | &asix_sigma_driver_info, |
5b907f9b | 123 | #endif |
f4314d7e | 124 | #ifdef HAVE_LA_CHRONOVU_LA8 |
c09f0b57 | 125 | &chronovu_la8_driver_info, |
f4314d7e | 126 | #endif |
bffed4fc | 127 | #ifdef HAVE_LA_LINK_MSO19 |
c09f0b57 | 128 | &link_mso19_driver_info, |
bffed4fc | 129 | #endif |
6ed4f044 | 130 | #ifdef HAVE_LA_ALSA |
c09f0b57 | 131 | &alsa_driver_info, |
f302a082 JH |
132 | #endif |
133 | #ifdef HAVE_LA_FX2LAFW | |
c09f0b57 | 134 | &fx2lafw_driver_info, |
3b533202 BV |
135 | #endif |
136 | #ifdef HAVE_HW_HANTEK_DSO | |
62bb8840 | 137 | &hantek_dso_driver_info, |
6ed4f044 | 138 | #endif |
ca3d84cc BV |
139 | #ifdef HAVE_HW_GENERICDMM |
140 | &genericdmm_driver_info, | |
e93cdf42 BV |
141 | #endif |
142 | #ifdef HAVE_HW_AGILENT_DMM | |
143 | &agdmm_driver_info, | |
e7edd64f BV |
144 | #endif |
145 | #ifdef HAVE_HW_FLUKE_DMM | |
146 | &flukedmm_driver_info, | |
d375b3c3 AG |
147 | #endif |
148 | #ifdef HAVE_HW_RADIOSHACK_DMM | |
149 | &radioshackdmm_driver_info, | |
eb1f1eb4 | 150 | #endif |
050e9219 UH |
151 | NULL, |
152 | }; | |
a1bb33af | 153 | |
a1645fcd | 154 | /** |
cfe064d8 | 155 | * Return the list of supported hardware drivers. |
a1645fcd | 156 | * |
c09f0b57 | 157 | * @return Pointer to the NULL-terminated list of hardware driver pointers. |
a1645fcd | 158 | */ |
cfe064d8 | 159 | SR_API struct sr_dev_driver **sr_driver_list(void) |
a1bb33af | 160 | { |
80bf0426 | 161 | |
c09f0b57 | 162 | return drivers_list; |
a1bb33af UH |
163 | } |
164 | ||
a1645fcd | 165 | /** |
c09f0b57 | 166 | * Initialize a hardware driver. |
a1645fcd | 167 | * |
c09f0b57 | 168 | * @param driver The driver to initialize. |
a1645fcd | 169 | * |
80bf0426 | 170 | * @return SR_OK if all went well, or an error code otherwise. |
a1645fcd | 171 | */ |
cfe064d8 | 172 | SR_API int sr_driver_init(struct sr_dev_driver *driver) |
8722c31e | 173 | { |
8722c31e | 174 | |
80bf0426 BV |
175 | if (driver->init) |
176 | return driver->init(); | |
177 | ||
178 | return SR_OK; | |
179 | } | |
180 | ||
181 | /** | |
182 | * Tell a hardware driver to scan for devices. | |
183 | * | |
a5f2e707 BV |
184 | * In addition to the detection, the devices that are found are also |
185 | * initialized automatically. On some devices, this involves a firmware upload, | |
186 | * or other such measures. | |
187 | * | |
188 | * The order in which the system is scanned for devices is not specified. The | |
189 | * caller should not assume or rely on any specific order. | |
190 | * | |
80bf0426 BV |
191 | * @param driver The driver. |
192 | * @param options A list of struct sr_hwopt options to pass to the driver's | |
193 | * scanner. | |
194 | * | |
195 | * @return A GSList * of struct sr_dev_inst, or NULL if no devices were found. | |
196 | * This list must be freed by the caller, but without freeing the data | |
197 | * pointed to in the list. | |
198 | */ | |
199 | SR_API GSList *sr_driver_scan(struct sr_dev_driver *driver, GSList *options) | |
200 | { | |
201 | ||
202 | if (driver->scan) | |
203 | return driver->scan(options); | |
204 | ||
205 | return NULL; | |
8722c31e BV |
206 | } |
207 | ||
b4bd7088 | 208 | /** @private */ |
93a04e3b | 209 | SR_PRIV void sr_hw_cleanup_all(void) |
8722c31e | 210 | { |
050e9219 | 211 | int i; |
c09f0b57 | 212 | struct sr_dev_driver **drivers; |
8722c31e | 213 | |
cfe064d8 | 214 | drivers = sr_driver_list(); |
c09f0b57 UH |
215 | for (i = 0; drivers[i]; i++) { |
216 | if (drivers[i]->cleanup) | |
217 | drivers[i]->cleanup(); | |
8722c31e | 218 | } |
8722c31e BV |
219 | } |
220 | ||
df123801 BV |
221 | /** |
222 | * Returns information about the given driver or device instance. | |
223 | * | |
224 | * @param driver The sr_dev_driver struct to query. | |
225 | * @param id The type of information, in the form of an SR_HWCAP_* option. | |
226 | * @param data Pointer where the value. will be stored. Must not be NULL. | |
227 | * @param sdi Pointer to the struct sr_dev_inst to be checked. Must not be NULL. | |
228 | * | |
229 | * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG | |
230 | * may be returned by the driver indicating it doesn't know that id, | |
231 | * but this is not to be flagged as an error by the caller; merely | |
232 | * as an indication that it's not applicable. | |
233 | */ | |
234 | SR_API int sr_info_get(struct sr_dev_driver *driver, int id, | |
235 | const void **data, const struct sr_dev_inst *sdi) | |
236 | { | |
237 | int ret; | |
238 | ||
239 | if (driver == NULL || data == NULL) | |
240 | return SR_ERR; | |
241 | ||
242 | ret = driver->info_get(id, data, sdi); | |
243 | ||
244 | return ret; | |
245 | } | |
246 | ||
a1645fcd | 247 | /** |
c09f0b57 | 248 | * Find out if a hardware driver has a specific capability. |
a1645fcd | 249 | * |
c09f0b57 | 250 | * @param driver The hardware driver in which to search for the capability. |
a1645fcd BV |
251 | * @param hwcap The capability to find in the list. |
252 | * | |
c496ac97 UH |
253 | * @return TRUE if the specified capability exists in the specified driver, |
254 | * FALSE otherwise. Also, if 'driver' is NULL or the respective driver | |
255 | * returns an invalid capability list, FALSE is returned. | |
a1645fcd | 256 | */ |
cfe064d8 | 257 | SR_API gboolean sr_driver_hwcap_exists(struct sr_dev_driver *driver, int hwcap) |
a1bb33af | 258 | { |
915f7cc8 JH |
259 | const int *hwcaps; |
260 | int i; | |
a1bb33af | 261 | |
c496ac97 UH |
262 | if (!driver) { |
263 | sr_err("hwdriver: %s: driver was NULL", __func__); | |
264 | return FALSE; | |
265 | } | |
266 | ||
be34a1c7 | 267 | if (driver->info_get(SR_DI_HWCAPS, (const void **)&hwcaps, NULL) != SR_OK) |
c496ac97 | 268 | return FALSE; |
c496ac97 | 269 | |
ffedd0bf UH |
270 | for (i = 0; hwcaps[i]; i++) { |
271 | if (hwcaps[i] == hwcap) | |
a1bb33af | 272 | return TRUE; |
49d0ce50 | 273 | } |
a1bb33af UH |
274 | |
275 | return FALSE; | |
276 | } | |
277 | ||
8bfdc8c4 | 278 | /** |
48a486cd | 279 | * Get information about a hardware driver option. |
8bfdc8c4 | 280 | * |
15cb43d6 | 281 | * @param opt The option to get. |
8bfdc8c4 | 282 | * |
15cb43d6 BV |
283 | * @return A pointer to a struct sr_hwcap_option, or NULL if the option |
284 | * was not found. | |
8bfdc8c4 | 285 | */ |
15cb43d6 | 286 | SR_API const struct sr_hwcap_option *sr_drvopt_get(int opt) |
8bfdc8c4 BV |
287 | { |
288 | int i; | |
289 | ||
290 | for (i = 0; sr_drvopts[i].hwcap; i++) { | |
15cb43d6 BV |
291 | if (sr_drvopts[i].hwcap == opt) |
292 | return &sr_drvopts[i]; | |
293 | } | |
294 | ||
295 | return NULL; | |
296 | } | |
297 | ||
298 | /** | |
299 | * Get information about a hardware driver option, by name. | |
300 | * | |
301 | * @param optname The name of the option to get. | |
302 | * | |
303 | * @return A pointer to a struct sr_hwcap_option, or NULL if the option | |
304 | * was not found. | |
305 | */ | |
306 | SR_API const struct sr_hwcap_option *sr_drvopt_name_get(const char *optname) | |
307 | { | |
308 | int i; | |
309 | ||
310 | for (i = 0; sr_drvopts[i].hwcap; i++) { | |
311 | if (!strcmp(sr_drvopts[i].shortname, optname)) | |
8bfdc8c4 BV |
312 | return &sr_drvopts[i]; |
313 | } | |
314 | ||
315 | return NULL; | |
316 | } | |
317 | ||
a1645fcd | 318 | /** |
48a486cd | 319 | * Get information about a device option. |
a1645fcd | 320 | * |
15cb43d6 BV |
321 | * @param opt The option to get. |
322 | * | |
323 | * @return A pointer to a struct sr_hwcap_option, or NULL if the option | |
324 | * was not found. | |
325 | */ | |
326 | SR_API const struct sr_hwcap_option *sr_devopt_get(int opt) | |
327 | { | |
328 | int i; | |
329 | ||
330 | for (i = 0; sr_devopts[i].hwcap; i++) { | |
331 | if (sr_devopts[i].hwcap == opt) | |
332 | return &sr_devopts[i]; | |
333 | } | |
334 | ||
335 | return NULL; | |
336 | } | |
337 | ||
338 | /** | |
339 | * Get information about a device option, by name. | |
340 | * | |
341 | * @param optname The name of the option to get. | |
a1645fcd | 342 | * |
15cb43d6 BV |
343 | * @return A pointer to a struct sr_hwcap_option, or NULL if the option |
344 | * was not found. | |
a1645fcd | 345 | */ |
15cb43d6 | 346 | SR_API const struct sr_hwcap_option *sr_devopt_name_get(const char *optname) |
a1bb33af | 347 | { |
a1bb33af UH |
348 | int i; |
349 | ||
15cb43d6 BV |
350 | for (i = 0; sr_devopts[i].hwcap; i++) { |
351 | if (!strcmp(sr_devopts[i].shortname, optname)) | |
352 | return &sr_devopts[i]; | |
a1bb33af UH |
353 | } |
354 | ||
49d0ce50 | 355 | return NULL; |
a1bb33af UH |
356 | } |
357 | ||
69cfcfc8 | 358 | /* Unnecessary level of indirection follows. */ |
544a4582 | 359 | |
b4bd7088 | 360 | /** @private */ |
69cfcfc8 | 361 | SR_PRIV int sr_source_remove(int fd) |
a1bb33af | 362 | { |
69cfcfc8 | 363 | return sr_session_source_remove(fd); |
a1bb33af UH |
364 | } |
365 | ||
b4bd7088 | 366 | /** @private */ |
69cfcfc8 UH |
367 | SR_PRIV int sr_source_add(int fd, int events, int timeout, |
368 | sr_receive_data_callback_t cb, void *cb_data) | |
a1bb33af | 369 | { |
69cfcfc8 | 370 | return sr_session_source_add(fd, events, timeout, cb, cb_data); |
a1bb33af | 371 | } |
7b870c38 UH |
372 | |
373 | /** @} */ |