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a1bb33af | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
a1bb33af | 3 | * |
13d8e03c | 4 | * Copyright (C) 2013 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> | |
545f9786 | 26 | #include "config.h" /* Needed for HAVE_LIBUSB_1_0 and others. */ |
45c59c8b BV |
27 | #include "libsigrok.h" |
28 | #include "libsigrok-internal.h" | |
a1bb33af | 29 | |
bd36d826 UH |
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 | ||
393fb9cb UH |
39 | /** |
40 | * @file | |
41 | * | |
42 | * Hardware driver handling in libsigrok. | |
43 | */ | |
44 | ||
7b870c38 UH |
45 | /** |
46 | * @defgroup grp_driver Hardware drivers | |
47 | * | |
48 | * Hardware driver handling in libsigrok. | |
49 | * | |
50 | * @{ | |
51 | */ | |
8bfdc8c4 | 52 | |
c89c1c9c | 53 | static struct sr_config_info sr_config_info_data[] = { |
1953564a | 54 | {SR_CONF_CONN, SR_T_CHAR, "conn", |
083d64f9 | 55 | "Connection", NULL}, |
1953564a | 56 | {SR_CONF_SERIALCOMM, SR_T_CHAR, "serialcomm", |
083d64f9 | 57 | "Serial communication", NULL}, |
1953564a | 58 | {SR_CONF_SAMPLERATE, SR_T_UINT64, "samplerate", |
083d64f9 | 59 | "Sample rate", NULL}, |
1953564a | 60 | {SR_CONF_CAPTURE_RATIO, SR_T_UINT64, "captureratio", |
083d64f9 | 61 | "Pre-trigger capture ratio", NULL}, |
1953564a | 62 | {SR_CONF_PATTERN_MODE, SR_T_CHAR, "pattern", |
083d64f9 | 63 | "Pattern generator mode", NULL}, |
8e34ca86 BV |
64 | {SR_CONF_TRIGGER_TYPE, SR_T_CHAR, "triggertype", |
65 | "Trigger types", NULL}, | |
1953564a | 66 | {SR_CONF_RLE, SR_T_BOOL, "rle", |
083d64f9 | 67 | "Run Length Encoding", NULL}, |
1953564a | 68 | {SR_CONF_TRIGGER_SLOPE, SR_T_UINT64, "triggerslope", |
083d64f9 | 69 | "Trigger slope", NULL}, |
1953564a | 70 | {SR_CONF_TRIGGER_SOURCE, SR_T_CHAR, "triggersource", |
083d64f9 | 71 | "Trigger source", NULL}, |
1953564a | 72 | {SR_CONF_HORIZ_TRIGGERPOS, SR_T_FLOAT, "horiz_triggerpos", |
083d64f9 | 73 | "Horizontal trigger position", NULL}, |
1953564a | 74 | {SR_CONF_BUFFERSIZE, SR_T_UINT64, "buffersize", |
083d64f9 | 75 | "Buffer size", NULL}, |
1953564a | 76 | {SR_CONF_TIMEBASE, SR_T_RATIONAL_PERIOD, "timebase", |
083d64f9 | 77 | "Time base", NULL}, |
1953564a | 78 | {SR_CONF_FILTER, SR_T_CHAR, "filter", |
083d64f9 | 79 | "Filter targets", NULL}, |
1953564a | 80 | {SR_CONF_VDIV, SR_T_RATIONAL_VOLT, "vdiv", |
083d64f9 | 81 | "Volts/div", NULL}, |
1953564a | 82 | {SR_CONF_COUPLING, SR_T_CHAR, "coupling", |
083d64f9 | 83 | "Coupling", NULL}, |
e6551ea6 BV |
84 | {SR_CONF_DATALOG, SR_T_BOOL, "datalog", |
85 | "Datalog", NULL}, | |
083d64f9 | 86 | {0, 0, NULL, NULL, NULL}, |
a1bb33af UH |
87 | }; |
88 | ||
b4bd7088 | 89 | /** @cond PRIVATE */ |
20cbc785 | 90 | #ifdef HAVE_HW_BRYMEN_DMM |
c5d6f5cc | 91 | extern SR_PRIV struct sr_dev_driver brymen_bm857_driver_info; |
20cbc785 | 92 | #endif |
4d729ddc BV |
93 | #ifdef HAVE_HW_COLEAD_SLM |
94 | extern SR_PRIV struct sr_dev_driver colead_slm_driver_info; | |
95 | #endif | |
a61b0e6a | 96 | #ifdef HAVE_LA_DEMO |
c09f0b57 | 97 | extern SR_PRIV struct sr_dev_driver demo_driver_info; |
a61b0e6a | 98 | #endif |
46697e38 BV |
99 | #ifdef HAVE_HW_LASCAR_EL_USB |
100 | extern SR_PRIV struct sr_dev_driver lascar_el_usb_driver_info; | |
101 | #endif | |
7ec5b549 | 102 | #ifdef HAVE_HW_MIC_985XX |
6f3e5335 | 103 | extern SR_PRIV struct sr_dev_driver mic_98581_driver_info; |
0cd8e231 | 104 | extern SR_PRIV struct sr_dev_driver mic_98583_driver_info; |
7ec5b549 | 105 | #endif |
695f32d8 UH |
106 | #ifdef HAVE_HW_NEXUS_OSCIPRIME |
107 | extern SR_PRIV struct sr_dev_driver nexus_osciprime_driver_info; | |
108 | #endif | |
960a75e4 | 109 | #ifdef HAVE_LA_OLS |
c09f0b57 | 110 | extern SR_PRIV struct sr_dev_driver ols_driver_info; |
960a75e4 | 111 | #endif |
f4816ac6 ML |
112 | #ifdef HAVE_HW_RIGOL_DS1XX2 |
113 | extern SR_PRIV struct sr_dev_driver rigol_ds1xx2_driver_info; | |
114 | #endif | |
aa2af324 UH |
115 | #ifdef HAVE_HW_TONDAJ_SL_814 |
116 | extern SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info; | |
117 | #endif | |
ac3898d2 BV |
118 | #ifdef HAVE_HW_VICTOR_DMM |
119 | extern SR_PRIV struct sr_dev_driver victor_dmm_driver_info; | |
120 | #endif | |
960a75e4 | 121 | #ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE |
c09f0b57 | 122 | extern SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info; |
960a75e4 | 123 | #endif |
5b907f9b | 124 | #ifdef HAVE_LA_ASIX_SIGMA |
c09f0b57 | 125 | extern SR_PRIV struct sr_dev_driver asix_sigma_driver_info; |
5b907f9b | 126 | #endif |
f4314d7e | 127 | #ifdef HAVE_LA_CHRONOVU_LA8 |
c09f0b57 | 128 | extern SR_PRIV struct sr_dev_driver chronovu_la8_driver_info; |
f4314d7e | 129 | #endif |
695f32d8 UH |
130 | #ifdef HAVE_LA_LINK_MSO19 |
131 | extern SR_PRIV struct sr_dev_driver link_mso19_driver_info; | |
132 | #endif | |
0254651d | 133 | #ifdef HAVE_HW_ALSA |
c09f0b57 | 134 | extern SR_PRIV struct sr_dev_driver alsa_driver_info; |
6ed4f044 | 135 | #endif |
f302a082 | 136 | #ifdef HAVE_LA_FX2LAFW |
c09f0b57 | 137 | extern SR_PRIV struct sr_dev_driver fx2lafw_driver_info; |
f302a082 | 138 | #endif |
3b533202 | 139 | #ifdef HAVE_HW_HANTEK_DSO |
62bb8840 | 140 | extern SR_PRIV struct sr_dev_driver hantek_dso_driver_info; |
3b533202 | 141 | #endif |
e93cdf42 BV |
142 | #ifdef HAVE_HW_AGILENT_DMM |
143 | extern SR_PRIV struct sr_dev_driver agdmm_driver_info; | |
144 | #endif | |
e7edd64f BV |
145 | #ifdef HAVE_HW_FLUKE_DMM |
146 | extern SR_PRIV struct sr_dev_driver flukedmm_driver_info; | |
147 | #endif | |
21a7f269 | 148 | #ifdef HAVE_HW_SERIAL_DMM |
f086b830 | 149 | extern SR_PRIV struct sr_dev_driver digitek_dt4000zc_driver_info; |
729b01f9 | 150 | extern SR_PRIV struct sr_dev_driver tekpower_tp4000zc_driver_info; |
ce3777ad | 151 | extern SR_PRIV struct sr_dev_driver metex_me31_driver_info; |
f0ac4929 | 152 | extern SR_PRIV struct sr_dev_driver peaktech_3410_driver_info; |
5887c9cc | 153 | extern SR_PRIV struct sr_dev_driver mastech_mas345_driver_info; |
6dca2f16 | 154 | extern SR_PRIV struct sr_dev_driver va_va18b_driver_info; |
a53da082 | 155 | extern SR_PRIV struct sr_dev_driver metex_m3640d_driver_info; |
a376ffea | 156 | extern SR_PRIV struct sr_dev_driver peaktech_4370_driver_info; |
d4bd66a0 | 157 | extern SR_PRIV struct sr_dev_driver pce_pce_dm32_driver_info; |
d5ce233f | 158 | extern SR_PRIV struct sr_dev_driver radioshack_22_168_driver_info; |
3864648b | 159 | extern SR_PRIV struct sr_dev_driver radioshack_22_805_driver_info; |
21829e67 | 160 | extern SR_PRIV struct sr_dev_driver radioshack_22_812_driver_info; |
40830061 | 161 | extern SR_PRIV struct sr_dev_driver voltcraft_vc820_ser_driver_info; |
54d11221 | 162 | extern SR_PRIV struct sr_dev_driver voltcraft_vc840_ser_driver_info; |
ae3a59de | 163 | extern SR_PRIV struct sr_dev_driver uni_t_ut61d_ser_driver_info; |
986fde75 | 164 | extern SR_PRIV struct sr_dev_driver uni_t_ut61e_ser_driver_info; |
7dc55d93 | 165 | #endif |
79081ec8 | 166 | #ifdef HAVE_HW_UNI_T_DMM |
fdbcb86d UH |
167 | extern SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info; |
168 | extern SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info; | |
79081ec8 | 169 | #endif |
b4bd7088 | 170 | /** @endcond */ |
6ed4f044 | 171 | |
c09f0b57 | 172 | static struct sr_dev_driver *drivers_list[] = { |
20cbc785 | 173 | #ifdef HAVE_HW_BRYMEN_DMM |
c5d6f5cc | 174 | &brymen_bm857_driver_info, |
20cbc785 | 175 | #endif |
4d729ddc BV |
176 | #ifdef HAVE_HW_COLEAD_SLM |
177 | &colead_slm_driver_info, | |
178 | #endif | |
a61b0e6a | 179 | #ifdef HAVE_LA_DEMO |
c09f0b57 | 180 | &demo_driver_info, |
a61b0e6a | 181 | #endif |
46697e38 BV |
182 | #ifdef HAVE_HW_LASCAR_EL_USB |
183 | &lascar_el_usb_driver_info, | |
184 | #endif | |
7ec5b549 | 185 | #ifdef HAVE_HW_MIC_985XX |
6f3e5335 | 186 | &mic_98581_driver_info, |
0cd8e231 | 187 | &mic_98583_driver_info, |
7ec5b549 | 188 | #endif |
695f32d8 UH |
189 | #ifdef HAVE_HW_NEXUS_OSCIPRIME |
190 | &nexus_osciprime_driver_info, | |
191 | #endif | |
960a75e4 | 192 | #ifdef HAVE_LA_OLS |
c09f0b57 | 193 | &ols_driver_info, |
960a75e4 | 194 | #endif |
f4816ac6 ML |
195 | #ifdef HAVE_HW_RIGOL_DS1XX2 |
196 | &rigol_ds1xx2_driver_info, | |
197 | #endif | |
aa2af324 UH |
198 | #ifdef HAVE_HW_TONDAJ_SL_814 |
199 | &tondaj_sl_814_driver_info, | |
200 | #endif | |
ac3898d2 BV |
201 | #ifdef HAVE_HW_VICTOR_DMM |
202 | &victor_dmm_driver_info, | |
203 | #endif | |
960a75e4 | 204 | #ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE |
c09f0b57 | 205 | &zeroplus_logic_cube_driver_info, |
960a75e4 | 206 | #endif |
5b907f9b | 207 | #ifdef HAVE_LA_ASIX_SIGMA |
c09f0b57 | 208 | &asix_sigma_driver_info, |
5b907f9b | 209 | #endif |
f4314d7e | 210 | #ifdef HAVE_LA_CHRONOVU_LA8 |
c09f0b57 | 211 | &chronovu_la8_driver_info, |
f4314d7e | 212 | #endif |
695f32d8 UH |
213 | #ifdef HAVE_LA_LINK_MSO19 |
214 | &link_mso19_driver_info, | |
215 | #endif | |
0254651d | 216 | #ifdef HAVE_HW_ALSA |
c09f0b57 | 217 | &alsa_driver_info, |
f302a082 JH |
218 | #endif |
219 | #ifdef HAVE_LA_FX2LAFW | |
c09f0b57 | 220 | &fx2lafw_driver_info, |
3b533202 BV |
221 | #endif |
222 | #ifdef HAVE_HW_HANTEK_DSO | |
62bb8840 | 223 | &hantek_dso_driver_info, |
6ed4f044 | 224 | #endif |
e93cdf42 BV |
225 | #ifdef HAVE_HW_AGILENT_DMM |
226 | &agdmm_driver_info, | |
e7edd64f BV |
227 | #endif |
228 | #ifdef HAVE_HW_FLUKE_DMM | |
229 | &flukedmm_driver_info, | |
d375b3c3 | 230 | #endif |
21a7f269 | 231 | #ifdef HAVE_HW_SERIAL_DMM |
f086b830 | 232 | &digitek_dt4000zc_driver_info, |
729b01f9 | 233 | &tekpower_tp4000zc_driver_info, |
ce3777ad | 234 | &metex_me31_driver_info, |
f0ac4929 | 235 | &peaktech_3410_driver_info, |
5887c9cc | 236 | &mastech_mas345_driver_info, |
6dca2f16 | 237 | &va_va18b_driver_info, |
a53da082 | 238 | &metex_m3640d_driver_info, |
a376ffea | 239 | &peaktech_4370_driver_info, |
d4bd66a0 | 240 | &pce_pce_dm32_driver_info, |
d5ce233f | 241 | &radioshack_22_168_driver_info, |
3864648b | 242 | &radioshack_22_805_driver_info, |
21829e67 | 243 | &radioshack_22_812_driver_info, |
40830061 | 244 | &voltcraft_vc820_ser_driver_info, |
54d11221 | 245 | &voltcraft_vc840_ser_driver_info, |
ae3a59de | 246 | &uni_t_ut61d_ser_driver_info, |
986fde75 | 247 | &uni_t_ut61e_ser_driver_info, |
79081ec8 UH |
248 | #endif |
249 | #ifdef HAVE_HW_UNI_T_DMM | |
fdbcb86d UH |
250 | &uni_t_ut61d_driver_info, |
251 | &voltcraft_vc820_driver_info, | |
eb1f1eb4 | 252 | #endif |
050e9219 UH |
253 | NULL, |
254 | }; | |
a1bb33af | 255 | |
a1645fcd | 256 | /** |
cfe064d8 | 257 | * Return the list of supported hardware drivers. |
a1645fcd | 258 | * |
c09f0b57 | 259 | * @return Pointer to the NULL-terminated list of hardware driver pointers. |
a1645fcd | 260 | */ |
cfe064d8 | 261 | SR_API struct sr_dev_driver **sr_driver_list(void) |
a1bb33af | 262 | { |
80bf0426 | 263 | |
c09f0b57 | 264 | return drivers_list; |
a1bb33af UH |
265 | } |
266 | ||
a1645fcd | 267 | /** |
c09f0b57 | 268 | * Initialize a hardware driver. |
a1645fcd | 269 | * |
c0eea11c UH |
270 | * This usually involves memory allocations and variable initializations |
271 | * within the driver, but _not_ scanning for attached devices. | |
272 | * The API call sr_driver_scan() is used for that. | |
273 | * | |
44fc870c | 274 | * @param ctx A libsigrok context object allocated by a previous call to |
c0eea11c UH |
275 | * sr_init(). Must not be NULL. |
276 | * @param driver The driver to initialize. This must be a pointer to one of | |
277 | * the entries returned by sr_driver_list(). Must not be NULL. | |
a1645fcd | 278 | * |
c0eea11c UH |
279 | * @return SR_OK upon success, SR_ERR_ARG upon invalid parameters, |
280 | * SR_ERR_BUG upon internal errors, or another negative error code | |
281 | * upon other errors. | |
a1645fcd | 282 | */ |
44fc870c | 283 | SR_API int sr_driver_init(struct sr_context *ctx, struct sr_dev_driver *driver) |
8722c31e | 284 | { |
c0eea11c UH |
285 | int ret; |
286 | ||
287 | if (!ctx) { | |
288 | sr_err("Invalid libsigrok context, can't initialize."); | |
289 | return SR_ERR_ARG; | |
290 | } | |
291 | ||
292 | if (!driver) { | |
293 | sr_err("Invalid driver, can't initialize."); | |
294 | return SR_ERR_ARG; | |
295 | } | |
8722c31e | 296 | |
c0eea11c UH |
297 | sr_spew("Initializing driver '%s'.", driver->name); |
298 | if ((ret = driver->init(ctx)) < 0) | |
299 | sr_err("Failed to initialize the driver: %d.", ret); | |
80bf0426 | 300 | |
c0eea11c | 301 | return ret; |
80bf0426 BV |
302 | } |
303 | ||
304 | /** | |
305 | * Tell a hardware driver to scan for devices. | |
306 | * | |
a5f2e707 BV |
307 | * In addition to the detection, the devices that are found are also |
308 | * initialized automatically. On some devices, this involves a firmware upload, | |
309 | * or other such measures. | |
310 | * | |
311 | * The order in which the system is scanned for devices is not specified. The | |
312 | * caller should not assume or rely on any specific order. | |
313 | * | |
4b97c74e UH |
314 | * Before calling sr_driver_scan(), the user must have previously initialized |
315 | * the driver by calling sr_driver_init(). | |
80bf0426 | 316 | * |
4b97c74e UH |
317 | * @param driver The driver that should scan. This must be a pointer to one of |
318 | * the entries returned by sr_driver_list(). Must not be NULL. | |
319 | * @param options A list of 'struct sr_hwopt' options to pass to the driver's | |
320 | * scanner. Can be NULL/empty. | |
321 | * | |
322 | * @return A GSList * of 'struct sr_dev_inst', or NULL if no devices were | |
323 | * found (or errors were encountered). This list must be freed by the | |
324 | * caller using g_slist_free(), but without freeing the data pointed | |
325 | * to in the list. | |
80bf0426 BV |
326 | */ |
327 | SR_API GSList *sr_driver_scan(struct sr_dev_driver *driver, GSList *options) | |
328 | { | |
4b97c74e UH |
329 | GSList *l; |
330 | ||
331 | if (!driver) { | |
332 | sr_err("Invalid driver, can't scan for devices."); | |
333 | return NULL; | |
334 | } | |
335 | ||
336 | if (!driver->priv) { | |
337 | sr_err("Driver not initialized, can't scan for devices."); | |
338 | return NULL; | |
339 | } | |
340 | ||
341 | l = driver->scan(options); | |
80bf0426 | 342 | |
4b97c74e UH |
343 | sr_spew("Scan of '%s' found %d devices.", driver->name, |
344 | g_slist_length(l)); | |
80bf0426 | 345 | |
4b97c74e | 346 | return l; |
8722c31e BV |
347 | } |
348 | ||
b4bd7088 | 349 | /** @private */ |
93a04e3b | 350 | SR_PRIV void sr_hw_cleanup_all(void) |
8722c31e | 351 | { |
050e9219 | 352 | int i; |
c09f0b57 | 353 | struct sr_dev_driver **drivers; |
8722c31e | 354 | |
cfe064d8 | 355 | drivers = sr_driver_list(); |
c09f0b57 UH |
356 | for (i = 0; drivers[i]; i++) { |
357 | if (drivers[i]->cleanup) | |
358 | drivers[i]->cleanup(); | |
8722c31e | 359 | } |
8722c31e BV |
360 | } |
361 | ||
bc1c2f00 BV |
362 | /** A floating reference can be passed in for data. */ |
363 | SR_PRIV struct sr_config *sr_config_new(int key, GVariant *data) | |
4c0e310c BV |
364 | { |
365 | struct sr_config *src; | |
366 | ||
367 | if (!(src = g_try_malloc(sizeof(struct sr_config)))) | |
368 | return NULL; | |
369 | src->key = key; | |
bc1c2f00 | 370 | src->data = g_variant_ref_sink(data); |
4c0e310c BV |
371 | |
372 | return src; | |
373 | } | |
374 | ||
722db131 BV |
375 | SR_PRIV void sr_config_free(struct sr_config *src) |
376 | { | |
377 | ||
378 | if (!src || !src->data) { | |
379 | sr_err("%s: invalid data!", __func__); | |
380 | return; | |
381 | } | |
382 | ||
383 | g_variant_unref(src->data); | |
384 | g_free(src); | |
385 | ||
386 | } | |
387 | ||
df123801 BV |
388 | /** |
389 | * Returns information about the given driver or device instance. | |
390 | * | |
391 | * @param driver The sr_dev_driver struct to query. | |
cbadb856 | 392 | * @param key The configuration key (SR_CONF_*). |
bc1c2f00 BV |
393 | * @param data Pointer to a GVariant where the value will be stored. Must |
394 | * not be NULL. The caller is given ownership of the GVariant | |
395 | * and must thus decrease the refcount after use. However if | |
396 | * this function returns an error code, the field should be | |
397 | * considered unused, and should not be unreferenced. | |
398 | * @param sdi (optional) If the key is specific to a device, this must | |
399 | * contain a pointer to the struct sr_dev_inst to be checked. | |
400 | * Otherwise it must be NULL. | |
df123801 BV |
401 | * |
402 | * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG | |
cbadb856 | 403 | * may be returned by the driver indicating it doesn't know that key, |
df123801 BV |
404 | * but this is not to be flagged as an error by the caller; merely |
405 | * as an indication that it's not applicable. | |
406 | */ | |
9fd504b9 | 407 | SR_API int sr_config_get(const struct sr_dev_driver *driver, int key, |
bc1c2f00 | 408 | GVariant **data, const struct sr_dev_inst *sdi) |
df123801 BV |
409 | { |
410 | int ret; | |
411 | ||
cbadb856 | 412 | if (!driver || !data) |
df123801 BV |
413 | return SR_ERR; |
414 | ||
6cefe516 BV |
415 | if (!driver->config_get) |
416 | return SR_ERR_ARG; | |
417 | ||
bc1c2f00 BV |
418 | if ((ret = driver->config_get(key, data, sdi)) == SR_OK) { |
419 | /* Got a floating reference from the driver. Sink it here, | |
420 | * caller will need to unref when done with it. */ | |
421 | g_variant_ref_sink(*data); | |
422 | } | |
df123801 BV |
423 | |
424 | return ret; | |
425 | } | |
426 | ||
cbadb856 BV |
427 | /** |
428 | * Set a configuration key in a device instance. | |
429 | * | |
430 | * @param sdi The device instance. | |
431 | * @param key The configuration key (SR_CONF_*). | |
bc1c2f00 BV |
432 | * @param data The new value for the key, as a GVariant with GVariantType |
433 | * appropriate to that key. A floating reference can be passed | |
434 | * in; its refcount will be sunk and unreferenced after use. | |
cbadb856 BV |
435 | * |
436 | * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG | |
437 | * may be returned by the driver indicating it doesn't know that key, | |
438 | * but this is not to be flagged as an error by the caller; merely | |
439 | * as an indication that it's not applicable. | |
440 | */ | |
bc1c2f00 | 441 | SR_API int sr_config_set(const struct sr_dev_inst *sdi, int key, GVariant *data) |
cbadb856 BV |
442 | { |
443 | int ret; | |
444 | ||
bc1c2f00 | 445 | g_variant_ref_sink(data); |
cbadb856 | 446 | |
bc1c2f00 BV |
447 | if (!sdi || !sdi->driver || !data) |
448 | ret = SR_ERR; | |
449 | else if (!sdi->driver->config_set) | |
450 | ret = SR_ERR_ARG; | |
451 | else | |
452 | ret = sdi->driver->config_set(key, data, sdi); | |
cbadb856 | 453 | |
bc1c2f00 | 454 | g_variant_unref(data); |
cbadb856 BV |
455 | |
456 | return ret; | |
457 | } | |
458 | ||
459 | /** | |
460 | * List all possible values for a configuration key. | |
461 | * | |
462 | * @param driver The sr_dev_driver struct to query. | |
463 | * @param key The configuration key (SR_CONF_*). | |
bc1c2f00 BV |
464 | * @param data A pointer to a GVariant where the list will be stored. The |
465 | * caller is given ownership of the GVariant and must thus | |
466 | * unref the GVariant after use. However if this function | |
467 | * returns an error code, the field should be considered | |
468 | * unused, and should not be unreferenced. | |
469 | * @param sdi (optional) If the key is specific to a device, this must | |
470 | * contain a pointer to the struct sr_dev_inst to be checked. | |
cbadb856 BV |
471 | * |
472 | * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG | |
473 | * may be returned by the driver indicating it doesn't know that key, | |
474 | * but this is not to be flagged as an error by the caller; merely | |
475 | * as an indication that it's not applicable. | |
476 | */ | |
4c961f5e | 477 | SR_API int sr_config_list(const struct sr_dev_driver *driver, int key, |
bc1c2f00 | 478 | GVariant **data, const struct sr_dev_inst *sdi) |
c5fb502f BV |
479 | { |
480 | int ret; | |
481 | ||
6cefe516 | 482 | if (!driver || !data) |
bc1c2f00 | 483 | ret = SR_ERR; |
d8284802 | 484 | else if (!driver->config_list) |
6cefe516 | 485 | ret = SR_ERR_ARG; |
bc1c2f00 BV |
486 | else if ((ret = driver->config_list(key, data, sdi)) == SR_OK) |
487 | g_variant_ref_sink(*data); | |
c5fb502f BV |
488 | |
489 | return ret; | |
490 | } | |
491 | ||
8bfdc8c4 | 492 | /** |
cbadb856 | 493 | * Get information about a configuration key. |
a1645fcd | 494 | * |
ca0938c5 | 495 | * @param key The configuration key. |
15cb43d6 | 496 | * |
c89c1c9c | 497 | * @return A pointer to a struct sr_config_info, or NULL if the key |
15cb43d6 BV |
498 | * was not found. |
499 | */ | |
c89c1c9c | 500 | SR_API const struct sr_config_info *sr_config_info_get(int key) |
15cb43d6 BV |
501 | { |
502 | int i; | |
503 | ||
c89c1c9c BV |
504 | for (i = 0; sr_config_info_data[i].key; i++) { |
505 | if (sr_config_info_data[i].key == key) | |
506 | return &sr_config_info_data[i]; | |
15cb43d6 BV |
507 | } |
508 | ||
509 | return NULL; | |
510 | } | |
511 | ||
512 | /** | |
cbadb856 | 513 | * Get information about an configuration key, by name. |
15cb43d6 | 514 | * |
cbadb856 | 515 | * @param optname The configuration key. |
a1645fcd | 516 | * |
c89c1c9c | 517 | * @return A pointer to a struct sr_config_info, or NULL if the key |
15cb43d6 | 518 | * was not found. |
a1645fcd | 519 | */ |
c89c1c9c | 520 | SR_API const struct sr_config_info *sr_config_info_name_get(const char *optname) |
a1bb33af | 521 | { |
a1bb33af UH |
522 | int i; |
523 | ||
c89c1c9c BV |
524 | for (i = 0; sr_config_info_data[i].key; i++) { |
525 | if (!strcmp(sr_config_info_data[i].id, optname)) | |
526 | return &sr_config_info_data[i]; | |
a1bb33af UH |
527 | } |
528 | ||
49d0ce50 | 529 | return NULL; |
a1bb33af UH |
530 | } |
531 | ||
69cfcfc8 | 532 | /* Unnecessary level of indirection follows. */ |
544a4582 | 533 | |
b4bd7088 | 534 | /** @private */ |
69cfcfc8 | 535 | SR_PRIV int sr_source_remove(int fd) |
a1bb33af | 536 | { |
69cfcfc8 | 537 | return sr_session_source_remove(fd); |
a1bb33af UH |
538 | } |
539 | ||
b4bd7088 | 540 | /** @private */ |
69cfcfc8 UH |
541 | SR_PRIV int sr_source_add(int fd, int events, int timeout, |
542 | sr_receive_data_callback_t cb, void *cb_data) | |
a1bb33af | 543 | { |
69cfcfc8 | 544 | return sr_session_source_add(fd, events, timeout, cb, cb_data); |
a1bb33af | 545 | } |
7b870c38 UH |
546 | |
547 | /** @} */ |