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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 | ||
6ec6c43b | 20 | #include <config.h> |
a1bb33af UH |
21 | #include <stdlib.h> |
22 | #include <stdio.h> | |
23 | #include <sys/types.h> | |
24 | #include <dirent.h> | |
25 | #include <string.h> | |
26 | #include <glib.h> | |
c1aae900 | 27 | #include <libsigrok/libsigrok.h> |
45c59c8b | 28 | #include "libsigrok-internal.h" |
a1bb33af | 29 | |
2ad1deb8 | 30 | /** @cond PRIVATE */ |
3544f848 | 31 | #define LOG_PREFIX "hwdriver" |
2ad1deb8 | 32 | /** @endcond */ |
bd36d826 | 33 | |
393fb9cb UH |
34 | /** |
35 | * @file | |
36 | * | |
37 | * Hardware driver handling in libsigrok. | |
38 | */ | |
39 | ||
7b870c38 UH |
40 | /** |
41 | * @defgroup grp_driver Hardware drivers | |
42 | * | |
43 | * Hardware driver handling in libsigrok. | |
44 | * | |
45 | * @{ | |
46 | */ | |
8bfdc8c4 | 47 | |
ca7dbb56 | 48 | /* Please use the same order/grouping as in enum sr_configkey (libsigrok.h). */ |
2fb60e23 | 49 | static struct sr_key_info sr_key_info_config[] = { |
54ab1dcd UH |
50 | /* Device classes */ |
51 | {SR_CONF_LOGIC_ANALYZER, SR_T_STRING, NULL, "Logic analyzer", NULL}, | |
51b1b95e BV |
52 | {SR_CONF_OSCILLOSCOPE, SR_T_STRING, NULL, "Oscilloscope", NULL}, |
53 | {SR_CONF_MULTIMETER, SR_T_STRING, NULL, "Multimeter", NULL}, | |
54 | {SR_CONF_DEMO_DEV, SR_T_STRING, NULL, "Demo device", NULL}, | |
55 | {SR_CONF_SOUNDLEVELMETER, SR_T_STRING, NULL, "Sound level meter", NULL}, | |
56 | {SR_CONF_THERMOMETER, SR_T_STRING, NULL, "Thermometer", NULL}, | |
57 | {SR_CONF_HYGROMETER, SR_T_STRING, NULL, "Hygrometer", NULL}, | |
58 | {SR_CONF_ENERGYMETER, SR_T_STRING, NULL, "Energy meter", NULL}, | |
59 | {SR_CONF_DEMODULATOR, SR_T_STRING, NULL, "Demodulator", NULL}, | |
60 | {SR_CONF_POWER_SUPPLY, SR_T_STRING, NULL, "Power supply", NULL}, | |
61 | {SR_CONF_LCRMETER, SR_T_STRING, NULL, "LCR meter", NULL}, | |
29ae6f08 UH |
62 | {SR_CONF_ELECTRONIC_LOAD, SR_T_STRING, NULL, "Electronic load", NULL}, |
63 | {SR_CONF_SCALE, SR_T_STRING, NULL, "Scale", NULL}, | |
51b1b95e | 64 | |
54ab1dcd | 65 | /* Driver scan options */ |
ace218f9 | 66 | {SR_CONF_CONN, SR_T_STRING, "conn", |
083d64f9 | 67 | "Connection", NULL}, |
ace218f9 | 68 | {SR_CONF_SERIALCOMM, SR_T_STRING, "serialcomm", |
083d64f9 | 69 | "Serial communication", NULL}, |
daa39012 AJ |
70 | {SR_CONF_MODBUSADDR, SR_T_UINT64, "modbusaddr", |
71 | "Modbus slave address", NULL}, | |
51b1b95e | 72 | |
54ab1dcd | 73 | /* Device (or channel group) configuration */ |
1953564a | 74 | {SR_CONF_SAMPLERATE, SR_T_UINT64, "samplerate", |
083d64f9 | 75 | "Sample rate", NULL}, |
1953564a | 76 | {SR_CONF_CAPTURE_RATIO, SR_T_UINT64, "captureratio", |
083d64f9 | 77 | "Pre-trigger capture ratio", NULL}, |
ace218f9 | 78 | {SR_CONF_PATTERN_MODE, SR_T_STRING, "pattern", |
2438b737 | 79 | "Pattern", NULL}, |
1953564a | 80 | {SR_CONF_RLE, SR_T_BOOL, "rle", |
54ab1dcd | 81 | "Run length encoding", NULL}, |
ace218f9 | 82 | {SR_CONF_TRIGGER_SLOPE, SR_T_STRING, "triggerslope", |
083d64f9 | 83 | "Trigger slope", NULL}, |
9ed444e6 BG |
84 | {SR_CONF_AVERAGING, SR_T_BOOL, "averaging", |
85 | "Averaging", NULL}, | |
86 | {SR_CONF_AVG_SAMPLES, SR_T_UINT64, "avg_samples", | |
87 | "Number of samples to average over", NULL}, | |
ace218f9 | 88 | {SR_CONF_TRIGGER_SOURCE, SR_T_STRING, "triggersource", |
083d64f9 | 89 | "Trigger source", NULL}, |
1953564a | 90 | {SR_CONF_HORIZ_TRIGGERPOS, SR_T_FLOAT, "horiz_triggerpos", |
083d64f9 | 91 | "Horizontal trigger position", NULL}, |
1953564a | 92 | {SR_CONF_BUFFERSIZE, SR_T_UINT64, "buffersize", |
083d64f9 | 93 | "Buffer size", NULL}, |
1953564a | 94 | {SR_CONF_TIMEBASE, SR_T_RATIONAL_PERIOD, "timebase", |
083d64f9 | 95 | "Time base", NULL}, |
6fad08e6 BV |
96 | {SR_CONF_FILTER, SR_T_BOOL, "filter", |
97 | "Filter", NULL}, | |
1953564a | 98 | {SR_CONF_VDIV, SR_T_RATIONAL_VOLT, "vdiv", |
083d64f9 | 99 | "Volts/div", NULL}, |
ace218f9 | 100 | {SR_CONF_COUPLING, SR_T_STRING, "coupling", |
083d64f9 | 101 | "Coupling", NULL}, |
54ab1dcd UH |
102 | {SR_CONF_TRIGGER_MATCH, SR_T_INT32, "triggermatch", |
103 | "Trigger matches", NULL}, | |
104 | {SR_CONF_SAMPLE_INTERVAL, SR_T_UINT64, "sample_interval", | |
105 | "Sample interval", NULL}, | |
bf622e6d ML |
106 | {SR_CONF_NUM_HDIV, SR_T_INT32, "num_hdiv", |
107 | "Number of horizontal divisions", NULL}, | |
54ab1dcd UH |
108 | {SR_CONF_NUM_VDIV, SR_T_INT32, "num_vdiv", |
109 | "Number of vertical divisions", NULL}, | |
ace218f9 | 110 | {SR_CONF_SPL_WEIGHT_FREQ, SR_T_STRING, "spl_weight_freq", |
fd8854c4 | 111 | "Sound pressure level frequency weighting", NULL}, |
ace218f9 | 112 | {SR_CONF_SPL_WEIGHT_TIME, SR_T_STRING, "spl_weight_time", |
fd8854c4 | 113 | "Sound pressure level time weighting", NULL}, |
54ab1dcd UH |
114 | {SR_CONF_SPL_MEASUREMENT_RANGE, SR_T_UINT64_RANGE, "spl_meas_range", |
115 | "Sound pressure level measurement range", NULL}, | |
9fd6bc20 BV |
116 | {SR_CONF_HOLD_MAX, SR_T_BOOL, "hold_max", |
117 | "Hold max", NULL}, | |
118 | {SR_CONF_HOLD_MIN, SR_T_BOOL, "hold_min", | |
119 | "Hold min", NULL}, | |
db11d7d2 MC |
120 | {SR_CONF_VOLTAGE_THRESHOLD, SR_T_DOUBLE_RANGE, "voltage_threshold", |
121 | "Voltage threshold", NULL }, | |
54ab1dcd UH |
122 | {SR_CONF_EXTERNAL_CLOCK, SR_T_BOOL, "external_clock", |
123 | "External clock mode", NULL}, | |
124 | {SR_CONF_SWAP, SR_T_BOOL, "swap", | |
125 | "Swap channel order", NULL}, | |
126 | {SR_CONF_CENTER_FREQUENCY, SR_T_UINT64, "center_frequency", | |
127 | "Center frequency", NULL}, | |
fca75cbb UH |
128 | {SR_CONF_NUM_LOGIC_CHANNELS, SR_T_INT32, "logic_channels", |
129 | "Number of logic channels", NULL}, | |
130 | {SR_CONF_NUM_ANALOG_CHANNELS, SR_T_INT32, "analog_channels", | |
131 | "Number of analog channels", NULL}, | |
7a0b98b5 AJ |
132 | {SR_CONF_VOLTAGE, SR_T_FLOAT, "voltage", |
133 | "Current voltage", NULL}, | |
134 | {SR_CONF_VOLTAGE_TARGET, SR_T_FLOAT, "voltage_target", | |
135 | "Voltage target", NULL}, | |
136 | {SR_CONF_CURRENT, SR_T_FLOAT, "current", | |
137 | "Current current", NULL}, | |
138 | {SR_CONF_CURRENT_LIMIT, SR_T_FLOAT, "current_limit", | |
139 | "Current limit", NULL}, | |
140 | {SR_CONF_ENABLED, SR_T_BOOL, "enabled", | |
141 | "Channel enabled", NULL}, | |
142 | {SR_CONF_CHANNEL_CONFIG, SR_T_STRING, "channel_config", | |
143 | "Channel modes", NULL}, | |
a1eaa9e0 BV |
144 | {SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED, SR_T_BOOL, "ovp_enabled", |
145 | "Over-voltage protection enabled", NULL}, | |
146 | {SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE, SR_T_BOOL, "ovp_active", | |
147 | "Over-voltage protection active", NULL}, | |
148 | {SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD, SR_T_FLOAT, "ovp_threshold", | |
149 | "Over-voltage protection threshold", NULL}, | |
150 | {SR_CONF_OVER_CURRENT_PROTECTION_ENABLED, SR_T_BOOL, "ocp_enabled", | |
151 | "Over-current protection enabled", NULL}, | |
152 | {SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE, SR_T_BOOL, "ocp_active", | |
153 | "Over-current protection active", NULL}, | |
154 | {SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD, SR_T_FLOAT, "ocp_threshold", | |
155 | "Over-current protection threshold", NULL}, | |
ace218f9 | 156 | {SR_CONF_CLOCK_EDGE, SR_T_STRING, "clock_edge", |
860bc59b | 157 | "Clock edge", NULL}, |
cff7d8d6 BV |
158 | {SR_CONF_AMPLITUDE, SR_T_FLOAT, "amplitude", |
159 | "Amplitude", NULL}, | |
7a0b98b5 AJ |
160 | {SR_CONF_REGULATION, SR_T_STRING, "regulation", |
161 | "Channel regulation", NULL}, | |
54ab1dcd UH |
162 | {SR_CONF_OVER_TEMPERATURE_PROTECTION, SR_T_BOOL, "otp", |
163 | "Over-temperature protection", NULL}, | |
b94dd07b | 164 | {SR_CONF_OUTPUT_FREQUENCY, SR_T_FLOAT, "output_frequency", |
a42a39ac | 165 | "Output frequency", NULL}, |
a77585d4 AG |
166 | {SR_CONF_OUTPUT_FREQUENCY_TARGET, SR_T_FLOAT, "output_frequency_target", |
167 | "Output frequency target", NULL}, | |
661cc2ec | 168 | {SR_CONF_MEASURED_QUANTITY, SR_T_MQ, "measured_quantity", |
a42a39ac | 169 | "Measured quantity", NULL}, |
a42a39ac JH |
170 | {SR_CONF_EQUIV_CIRCUIT_MODEL, SR_T_STRING, "equiv_circuit_model", |
171 | "Equivalent circuit model", NULL}, | |
c4b78389 AJ |
172 | {SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE, SR_T_BOOL, "otp_active", |
173 | "Over-temperature protection active", NULL}, | |
54ab1dcd UH |
174 | |
175 | /* Special stuff */ | |
176 | {SR_CONF_SCAN_OPTIONS, SR_T_STRING, "scan_options", | |
177 | "Scan options", NULL}, | |
178 | {SR_CONF_DEVICE_OPTIONS, SR_T_STRING, "device_options", | |
179 | "Device options", NULL}, | |
180 | {SR_CONF_SESSIONFILE, SR_T_STRING, "sessionfile", | |
181 | "Session file", NULL}, | |
182 | {SR_CONF_CAPTUREFILE, SR_T_STRING, "capturefile", | |
183 | "Capture file", NULL}, | |
184 | {SR_CONF_CAPTURE_UNITSIZE, SR_T_UINT64, "capture_unitsize", | |
185 | "Capture unitsize", NULL}, | |
186 | {SR_CONF_POWER_OFF, SR_T_BOOL, "power_off", | |
187 | "Power off", NULL}, | |
188 | {SR_CONF_DATA_SOURCE, SR_T_STRING, "data_source", | |
189 | "Data source", NULL}, | |
d3c81725 BG |
190 | {SR_CONF_PROBE_FACTOR, SR_T_UINT64, "probe_factor", |
191 | "Probe factor", NULL}, | |
54ab1dcd UH |
192 | |
193 | /* Acquisition modes, sample limiting */ | |
194 | {SR_CONF_LIMIT_MSEC, SR_T_UINT64, "limit_time", | |
195 | "Time limit", NULL}, | |
196 | {SR_CONF_LIMIT_SAMPLES, SR_T_UINT64, "limit_samples", | |
197 | "Sample limit", NULL}, | |
198 | {SR_CONF_LIMIT_FRAMES, SR_T_UINT64, "limit_frames", | |
199 | "Frame limit", NULL}, | |
200 | {SR_CONF_CONTINUOUS, SR_T_UINT64, "continuous", | |
201 | "Continuous sampling", NULL}, | |
202 | {SR_CONF_DATALOG, SR_T_BOOL, "datalog", | |
203 | "Datalog", NULL}, | |
204 | {SR_CONF_DEVICE_MODE, SR_T_STRING, "device_mode", | |
205 | "Device mode", NULL}, | |
206 | {SR_CONF_TEST_MODE, SR_T_STRING, "test_mode", | |
207 | "Test mode", NULL}, | |
208 | ||
9e9dba7b | 209 | ALL_ZERO |
a1bb33af UH |
210 | }; |
211 | ||
ca7dbb56 | 212 | /* Please use the same order as in enum sr_mq (libsigrok.h). */ |
0176c92f BV |
213 | static struct sr_key_info sr_key_info_mq[] = { |
214 | {SR_MQ_VOLTAGE, 0, "voltage", "Voltage", NULL}, | |
215 | {SR_MQ_CURRENT, 0, "current", "Current", NULL}, | |
216 | {SR_MQ_RESISTANCE, 0, "resistance", "Resistance", NULL}, | |
217 | {SR_MQ_CAPACITANCE, 0, "capacitance", "Capacitance", NULL}, | |
218 | {SR_MQ_TEMPERATURE, 0, "temperature", "Temperature", NULL}, | |
219 | {SR_MQ_FREQUENCY, 0, "frequency", "Frequency", NULL}, | |
220 | {SR_MQ_DUTY_CYCLE, 0, "duty_cycle", "Duty cycle", NULL}, | |
221 | {SR_MQ_CONTINUITY, 0, "continuity", "Continuity", NULL}, | |
222 | {SR_MQ_PULSE_WIDTH, 0, "pulse_width", "Pulse width", NULL}, | |
223 | {SR_MQ_CONDUCTANCE, 0, "conductance", "Conductance", NULL}, | |
224 | {SR_MQ_POWER, 0, "power", "Power", NULL}, | |
225 | {SR_MQ_GAIN, 0, "gain", "Gain", NULL}, | |
226 | {SR_MQ_SOUND_PRESSURE_LEVEL, 0, "spl", "Sound pressure level", NULL}, | |
227 | {SR_MQ_CARBON_MONOXIDE, 0, "co", "Carbon monoxide", NULL}, | |
228 | {SR_MQ_RELATIVE_HUMIDITY, 0, "rh", "Relative humidity", NULL}, | |
229 | {SR_MQ_TIME, 0, "time", "Time", NULL}, | |
230 | {SR_MQ_WIND_SPEED, 0, "wind_speed", "Wind speed", NULL}, | |
231 | {SR_MQ_PRESSURE, 0, "pressure", "Pressure", NULL}, | |
232 | {SR_MQ_PARALLEL_INDUCTANCE, 0, "parallel_inductance", "Parallel inductance", NULL}, | |
233 | {SR_MQ_PARALLEL_CAPACITANCE, 0, "parallel_capacitance", "Parallel capacitance", NULL}, | |
234 | {SR_MQ_PARALLEL_RESISTANCE, 0, "parallel_resistance", "Parallel resistance", NULL}, | |
235 | {SR_MQ_SERIES_INDUCTANCE, 0, "series_inductance", "Series inductance", NULL}, | |
236 | {SR_MQ_SERIES_CAPACITANCE, 0, "series_capacitance", "Series capacitance", NULL}, | |
237 | {SR_MQ_SERIES_RESISTANCE, 0, "series_resistance", "Series resistance", NULL}, | |
238 | {SR_MQ_DISSIPATION_FACTOR, 0, "dissipation_factor", "Dissipation factor", NULL}, | |
239 | {SR_MQ_QUALITY_FACTOR, 0, "quality_factor", "Quality factor", NULL}, | |
240 | {SR_MQ_PHASE_ANGLE, 0, "phase_angle", "Phase angle", NULL}, | |
241 | {SR_MQ_DIFFERENCE, 0, "difference", "Difference", NULL}, | |
242 | {SR_MQ_COUNT, 0, "count", "Count", NULL}, | |
243 | {SR_MQ_POWER_FACTOR, 0, "power_factor", "Power factor", NULL}, | |
244 | {SR_MQ_APPARENT_POWER, 0, "apparent_power", "Apparent power", NULL}, | |
29ae6f08 | 245 | {SR_MQ_MASS, 0, "mass", "Mass", NULL}, |
0176c92f BV |
246 | ALL_ZERO |
247 | }; | |
248 | ||
ca7dbb56 | 249 | /* Please use the same order as in enum sr_mqflag (libsigrok.h). */ |
0176c92f BV |
250 | static struct sr_key_info sr_key_info_mqflag[] = { |
251 | {SR_MQFLAG_AC, 0, "ac", "AC", NULL}, | |
252 | {SR_MQFLAG_DC, 0, "dc", "DC", NULL}, | |
253 | {SR_MQFLAG_RMS, 0, "rms", "RMS", NULL}, | |
254 | {SR_MQFLAG_DIODE, 0, "diode", "Diode", NULL}, | |
255 | {SR_MQFLAG_HOLD, 0, "hold", "Hold", NULL}, | |
256 | {SR_MQFLAG_MAX, 0, "max", "Max", NULL}, | |
257 | {SR_MQFLAG_MIN, 0, "min", "Min", NULL}, | |
258 | {SR_MQFLAG_AUTORANGE, 0, "auto_range", "Auto range", NULL}, | |
259 | {SR_MQFLAG_RELATIVE, 0, "relative", "Relative", NULL}, | |
260 | {SR_MQFLAG_SPL_FREQ_WEIGHT_A, 0, "spl_freq_weight_a", | |
261 | "Frequency weighted (A)", NULL}, | |
262 | {SR_MQFLAG_SPL_FREQ_WEIGHT_C, 0, "spl_freq_weight_c", | |
263 | "Frequency weighted (C)", NULL}, | |
264 | {SR_MQFLAG_SPL_FREQ_WEIGHT_Z, 0, "spl_freq_weight_z", | |
265 | "Frequency weighted (Z)", NULL}, | |
266 | {SR_MQFLAG_SPL_FREQ_WEIGHT_FLAT, 0, "spl_freq_weight_flat", | |
267 | "Frequency weighted (flat)", NULL}, | |
268 | {SR_MQFLAG_SPL_TIME_WEIGHT_S, 0, "spl_time_weight_s", | |
269 | "Time weighted (S)", NULL}, | |
270 | {SR_MQFLAG_SPL_TIME_WEIGHT_F, 0, "spl_time_weight_f", | |
271 | "Time weighted (F)", NULL}, | |
272 | {SR_MQFLAG_SPL_LAT, 0, "spl_time_average", "Time-averaged (LEQ)", NULL}, | |
273 | {SR_MQFLAG_SPL_PCT_OVER_ALARM, 0, "spl_pct_over_alarm", | |
274 | "Percentage over alarm", NULL}, | |
275 | {SR_MQFLAG_DURATION, 0, "duration", "Duration", NULL}, | |
276 | {SR_MQFLAG_AVG, 0, "average", "Average", NULL}, | |
277 | {SR_MQFLAG_REFERENCE, 0, "reference", "Reference", NULL}, | |
29ae6f08 | 278 | {SR_MQFLAG_UNSTABLE, 0, "unstable", "Unstable", NULL}, |
0176c92f BV |
279 | ALL_ZERO |
280 | }; | |
281 | ||
ca7dbb56 | 282 | /* This must handle all the keys from enum sr_datatype (libsigrok.h). */ |
13fef1ed ML |
283 | SR_PRIV const GVariantType *sr_variant_type_get(int datatype) |
284 | { | |
285 | switch (datatype) { | |
286 | case SR_T_INT32: | |
287 | return G_VARIANT_TYPE_INT32; | |
288 | case SR_T_UINT64: | |
289 | return G_VARIANT_TYPE_UINT64; | |
290 | case SR_T_STRING: | |
291 | return G_VARIANT_TYPE_STRING; | |
292 | case SR_T_BOOL: | |
293 | return G_VARIANT_TYPE_BOOLEAN; | |
294 | case SR_T_FLOAT: | |
295 | return G_VARIANT_TYPE_DOUBLE; | |
296 | case SR_T_RATIONAL_PERIOD: | |
297 | case SR_T_RATIONAL_VOLT: | |
298 | case SR_T_UINT64_RANGE: | |
299 | case SR_T_DOUBLE_RANGE: | |
300 | return G_VARIANT_TYPE_TUPLE; | |
301 | case SR_T_KEYVALUE: | |
302 | return G_VARIANT_TYPE_DICTIONARY; | |
75772c72 BV |
303 | case SR_T_MQ: |
304 | return G_VARIANT_TYPE_TUPLE; | |
13fef1ed ML |
305 | default: |
306 | return NULL; | |
307 | } | |
308 | } | |
309 | ||
584560f1 | 310 | SR_PRIV int sr_variant_type_check(uint32_t key, GVariant *value) |
13fef1ed | 311 | { |
2fb60e23 | 312 | const struct sr_key_info *info; |
13fef1ed | 313 | const GVariantType *type, *expected; |
61b02922 BV |
314 | char *expected_string, *type_string; |
315 | ||
2fb60e23 | 316 | info = sr_key_info_get(SR_KEY_CONFIG, key); |
13fef1ed ML |
317 | if (!info) |
318 | return SR_OK; | |
61b02922 | 319 | |
13fef1ed ML |
320 | expected = sr_variant_type_get(info->datatype); |
321 | type = g_variant_get_type(value); | |
61b02922 BV |
322 | if (!g_variant_type_equal(type, expected) |
323 | && !g_variant_type_is_subtype_of(type, expected)) { | |
324 | expected_string = g_variant_type_dup_string(expected); | |
325 | type_string = g_variant_type_dup_string(type); | |
13fef1ed ML |
326 | sr_err("Wrong variant type for key '%s': expected '%s', got '%s'", |
327 | info->name, expected_string, type_string); | |
328 | g_free(expected_string); | |
329 | g_free(type_string); | |
330 | return SR_ERR_ARG; | |
331 | } | |
61b02922 | 332 | |
13fef1ed ML |
333 | return SR_OK; |
334 | } | |
335 | ||
a1645fcd | 336 | /** |
cfe064d8 | 337 | * Return the list of supported hardware drivers. |
a1645fcd | 338 | * |
032da34b UH |
339 | * @param[in] ctx Pointer to a libsigrok context struct. Must not be NULL. |
340 | * | |
341 | * @retval NULL The ctx argument was NULL, or there are no supported drivers. | |
342 | * @retval Other Pointer to the NULL-terminated list of hardware drivers. | |
343 | * The user should NOT g_free() this list, sr_exit() will do that. | |
47117241 | 344 | * |
032da34b | 345 | * @since 0.4.0 |
a1645fcd | 346 | */ |
032da34b | 347 | SR_API struct sr_dev_driver **sr_driver_list(const struct sr_context *ctx) |
a1bb33af | 348 | { |
032da34b UH |
349 | if (!ctx) |
350 | return NULL; | |
9e60a31f | 351 | |
032da34b | 352 | return ctx->driver_list; |
a1bb33af UH |
353 | } |
354 | ||
a1645fcd | 355 | /** |
c09f0b57 | 356 | * Initialize a hardware driver. |
a1645fcd | 357 | * |
c0eea11c UH |
358 | * This usually involves memory allocations and variable initializations |
359 | * within the driver, but _not_ scanning for attached devices. | |
360 | * The API call sr_driver_scan() is used for that. | |
361 | * | |
44fc870c | 362 | * @param ctx A libsigrok context object allocated by a previous call to |
c0eea11c UH |
363 | * sr_init(). Must not be NULL. |
364 | * @param driver The driver to initialize. This must be a pointer to one of | |
365 | * the entries returned by sr_driver_list(). Must not be NULL. | |
a1645fcd | 366 | * |
67eb6bcb MH |
367 | * @retval SR_OK Success |
368 | * @retval SR_ERR_ARG Invalid parameter(s). | |
369 | * @retval SR_ERR_BUG Internal errors. | |
370 | * @retval other Another negative error code upon other errors. | |
47117241 UH |
371 | * |
372 | * @since 0.2.0 | |
a1645fcd | 373 | */ |
44fc870c | 374 | SR_API int sr_driver_init(struct sr_context *ctx, struct sr_dev_driver *driver) |
8722c31e | 375 | { |
c0eea11c UH |
376 | int ret; |
377 | ||
378 | if (!ctx) { | |
379 | sr_err("Invalid libsigrok context, can't initialize."); | |
380 | return SR_ERR_ARG; | |
381 | } | |
382 | ||
383 | if (!driver) { | |
384 | sr_err("Invalid driver, can't initialize."); | |
385 | return SR_ERR_ARG; | |
386 | } | |
8722c31e | 387 | |
c0eea11c | 388 | sr_spew("Initializing driver '%s'.", driver->name); |
4f840ce9 | 389 | if ((ret = driver->init(driver, ctx)) < 0) |
c0eea11c | 390 | sr_err("Failed to initialize the driver: %d.", ret); |
80bf0426 | 391 | |
c0eea11c | 392 | return ret; |
80bf0426 BV |
393 | } |
394 | ||
adfba736 BV |
395 | static int check_options(struct sr_dev_driver *driver, GSList *options, |
396 | uint32_t optlist_key, struct sr_dev_inst *sdi, | |
397 | struct sr_channel_group *cg) | |
398 | { | |
399 | struct sr_config *src; | |
2fb60e23 | 400 | const struct sr_key_info *srci; |
adfba736 BV |
401 | GVariant *gvar_opts; |
402 | GSList *l; | |
403 | const uint32_t *opts; | |
404 | gsize num_opts, i; | |
405 | int ret; | |
406 | ||
407 | if (sr_config_list(driver, sdi, cg, optlist_key, &gvar_opts) != SR_OK) { | |
408 | /* Driver publishes no options for this optlist. */ | |
409 | return SR_ERR; | |
410 | } | |
411 | ||
412 | ret = SR_OK; | |
413 | opts = g_variant_get_fixed_array(gvar_opts, &num_opts, sizeof(uint32_t)); | |
414 | for (l = options; l; l = l->next) { | |
415 | src = l->data; | |
416 | for (i = 0; i < num_opts; i++) { | |
417 | if (opts[i] == src->key) | |
418 | break; | |
419 | } | |
420 | if (i == num_opts) { | |
2fb60e23 | 421 | if (!(srci = sr_key_info_get(SR_KEY_CONFIG, src->key))) |
adfba736 BV |
422 | /* Shouldn't happen. */ |
423 | sr_err("Invalid option %d.", src->key); | |
424 | else | |
425 | sr_err("Invalid option '%s'.", srci->id); | |
426 | ret = SR_ERR_ARG; | |
427 | break; | |
428 | } | |
429 | if (sr_variant_type_check(src->key, src->data) != SR_OK) { | |
430 | ret = SR_ERR_ARG; | |
431 | break; | |
432 | } | |
433 | } | |
434 | g_variant_unref(gvar_opts); | |
435 | ||
436 | return ret; | |
437 | } | |
438 | ||
80bf0426 BV |
439 | /** |
440 | * Tell a hardware driver to scan for devices. | |
441 | * | |
a5f2e707 BV |
442 | * In addition to the detection, the devices that are found are also |
443 | * initialized automatically. On some devices, this involves a firmware upload, | |
444 | * or other such measures. | |
445 | * | |
446 | * The order in which the system is scanned for devices is not specified. The | |
447 | * caller should not assume or rely on any specific order. | |
448 | * | |
4b97c74e UH |
449 | * Before calling sr_driver_scan(), the user must have previously initialized |
450 | * the driver by calling sr_driver_init(). | |
80bf0426 | 451 | * |
4b97c74e UH |
452 | * @param driver The driver that should scan. This must be a pointer to one of |
453 | * the entries returned by sr_driver_list(). Must not be NULL. | |
454 | * @param options A list of 'struct sr_hwopt' options to pass to the driver's | |
455 | * scanner. Can be NULL/empty. | |
456 | * | |
457 | * @return A GSList * of 'struct sr_dev_inst', or NULL if no devices were | |
458 | * found (or errors were encountered). This list must be freed by the | |
459 | * caller using g_slist_free(), but without freeing the data pointed | |
460 | * to in the list. | |
47117241 UH |
461 | * |
462 | * @since 0.2.0 | |
80bf0426 BV |
463 | */ |
464 | SR_API GSList *sr_driver_scan(struct sr_dev_driver *driver, GSList *options) | |
465 | { | |
071151b5 | 466 | GSList *l; |
4b97c74e UH |
467 | |
468 | if (!driver) { | |
469 | sr_err("Invalid driver, can't scan for devices."); | |
470 | return NULL; | |
471 | } | |
472 | ||
41812aca | 473 | if (!driver->context) { |
4b97c74e UH |
474 | sr_err("Driver not initialized, can't scan for devices."); |
475 | return NULL; | |
476 | } | |
477 | ||
adfba736 BV |
478 | if (options) { |
479 | if (check_options(driver, options, SR_CONF_SCAN_OPTIONS, NULL, NULL) != SR_OK) | |
13fef1ed ML |
480 | return NULL; |
481 | } | |
482 | ||
4f840ce9 | 483 | l = driver->scan(driver, options); |
80bf0426 | 484 | |
4b97c74e UH |
485 | sr_spew("Scan of '%s' found %d devices.", driver->name, |
486 | g_slist_length(l)); | |
80bf0426 | 487 | |
4b97c74e | 488 | return l; |
8722c31e BV |
489 | } |
490 | ||
032da34b UH |
491 | /** |
492 | * Call driver cleanup function for all drivers. | |
493 | * | |
494 | * @param[in] ctx Pointer to a libsigrok context struct. Must not be NULL. | |
495 | * | |
496 | * @private | |
497 | */ | |
498 | SR_PRIV void sr_hw_cleanup_all(const struct sr_context *ctx) | |
8722c31e | 499 | { |
050e9219 | 500 | int i; |
c09f0b57 | 501 | struct sr_dev_driver **drivers; |
8722c31e | 502 | |
032da34b UH |
503 | if (!ctx) |
504 | return; | |
505 | ||
506 | drivers = sr_driver_list(ctx); | |
c09f0b57 UH |
507 | for (i = 0; drivers[i]; i++) { |
508 | if (drivers[i]->cleanup) | |
4f840ce9 | 509 | drivers[i]->cleanup(drivers[i]); |
41812aca | 510 | drivers[i]->context = NULL; |
8722c31e | 511 | } |
8722c31e BV |
512 | } |
513 | ||
67eb6bcb MH |
514 | /** Allocate struct sr_config. |
515 | * A floating reference can be passed in for data. | |
516 | * @private | |
517 | */ | |
584560f1 | 518 | SR_PRIV struct sr_config *sr_config_new(uint32_t key, GVariant *data) |
4c0e310c BV |
519 | { |
520 | struct sr_config *src; | |
521 | ||
91219afc | 522 | src = g_malloc0(sizeof(struct sr_config)); |
4c0e310c | 523 | src->key = key; |
bc1c2f00 | 524 | src->data = g_variant_ref_sink(data); |
4c0e310c BV |
525 | |
526 | return src; | |
527 | } | |
528 | ||
67eb6bcb MH |
529 | /** Free struct sr_config. |
530 | * @private | |
531 | */ | |
722db131 BV |
532 | SR_PRIV void sr_config_free(struct sr_config *src) |
533 | { | |
534 | ||
535 | if (!src || !src->data) { | |
536 | sr_err("%s: invalid data!", __func__); | |
537 | return; | |
538 | } | |
539 | ||
540 | g_variant_unref(src->data); | |
541 | g_free(src); | |
542 | ||
543 | } | |
544 | ||
dcd438ee UH |
545 | static void log_key(const struct sr_dev_inst *sdi, |
546 | const struct sr_channel_group *cg, uint32_t key, int op, GVariant *data) | |
547 | { | |
548 | const char *opstr; | |
2fb60e23 | 549 | const struct sr_key_info *srci; |
dcd438ee UH |
550 | |
551 | /* Don't log SR_CONF_DEVICE_OPTIONS, it's verbose and not too useful. */ | |
552 | if (key == SR_CONF_DEVICE_OPTIONS) | |
553 | return; | |
554 | ||
555 | opstr = op == SR_CONF_GET ? "get" : op == SR_CONF_SET ? "set" : "list"; | |
2fb60e23 | 556 | srci = sr_key_info_get(SR_KEY_CONFIG, key); |
dcd438ee UH |
557 | |
558 | sr_spew("sr_config_%s(): key %d (%s) sdi %p cg %s -> %s", opstr, key, | |
559 | srci ? srci->id : "NULL", sdi, cg ? cg->name : "NULL", | |
560 | data ? g_variant_print(data, TRUE) : "NULL"); | |
561 | } | |
562 | ||
c6dde812 BV |
563 | static int check_key(const struct sr_dev_driver *driver, |
564 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg, | |
dcd438ee | 565 | uint32_t key, int op, GVariant *data) |
c6dde812 | 566 | { |
2fb60e23 | 567 | const struct sr_key_info *srci; |
c6dde812 BV |
568 | gsize num_opts, i; |
569 | GVariant *gvar_opts; | |
570 | const uint32_t *opts; | |
571 | uint32_t pub_opt; | |
2c240774 UH |
572 | const char *suffix; |
573 | const char *opstr; | |
c6dde812 BV |
574 | |
575 | if (sdi && cg) | |
576 | suffix = " for this device and channel group"; | |
577 | else if (sdi) | |
578 | suffix = " for this device"; | |
579 | else | |
580 | suffix = ""; | |
581 | ||
2fb60e23 | 582 | if (!(srci = sr_key_info_get(SR_KEY_CONFIG, key))) { |
c6dde812 BV |
583 | sr_err("Invalid key %d.", key); |
584 | return SR_ERR_ARG; | |
585 | } | |
586 | opstr = op == SR_CONF_GET ? "get" : op == SR_CONF_SET ? "set" : "list"; | |
dcd438ee UH |
587 | |
588 | switch (key) { | |
589 | case SR_CONF_LIMIT_MSEC: | |
590 | case SR_CONF_LIMIT_SAMPLES: | |
591 | case SR_CONF_SAMPLERATE: | |
592 | /* Setting any of these to 0 is not useful. */ | |
593 | if (op != SR_CONF_SET || !data) | |
594 | break; | |
595 | if (g_variant_get_uint64(data) == 0) { | |
596 | sr_err("Cannot set '%s' to 0.", srci->id); | |
597 | return SR_ERR_ARG; | |
598 | } | |
599 | break; | |
600 | } | |
c6dde812 BV |
601 | |
602 | if (sr_config_list(driver, sdi, cg, SR_CONF_DEVICE_OPTIONS, &gvar_opts) != SR_OK) { | |
603 | /* Driver publishes no options. */ | |
6433156c | 604 | sr_err("No options available%s.", suffix); |
c6dde812 BV |
605 | return SR_ERR_ARG; |
606 | } | |
607 | opts = g_variant_get_fixed_array(gvar_opts, &num_opts, sizeof(uint32_t)); | |
608 | pub_opt = 0; | |
609 | for (i = 0; i < num_opts; i++) { | |
610 | if ((opts[i] & SR_CONF_MASK) == key) { | |
611 | pub_opt = opts[i]; | |
612 | break; | |
613 | } | |
614 | } | |
615 | g_variant_unref(gvar_opts); | |
616 | if (!pub_opt) { | |
617 | sr_err("Option '%s' not available%s.", srci->id, suffix); | |
618 | return SR_ERR_ARG; | |
619 | } | |
620 | ||
621 | if (!(pub_opt & op)) { | |
622 | sr_err("Option '%s' not available to %s%s.", srci->id, opstr, suffix); | |
623 | return SR_ERR_ARG; | |
624 | } | |
625 | ||
626 | return SR_OK; | |
627 | } | |
628 | ||
df123801 | 629 | /** |
67eb6bcb | 630 | * Query value of a configuration key at the given driver or device instance. |
df123801 | 631 | * |
67eb6bcb MH |
632 | * @param[in] driver The sr_dev_driver struct to query. |
633 | * @param[in] sdi (optional) If the key is specific to a device, this must | |
57ecdbd7 BV |
634 | * contain a pointer to the struct sr_dev_inst to be checked. |
635 | * Otherwise it must be NULL. | |
53b4680f | 636 | * @param[in] cg The channel group on the device for which to list the |
57ecdbd7 | 637 | * values, or NULL. |
67eb6bcb MH |
638 | * @param[in] key The configuration key (SR_CONF_*). |
639 | * @param[in,out] data Pointer to a GVariant where the value will be stored. | |
640 | * Must not be NULL. The caller is given ownership of the GVariant | |
bc1c2f00 BV |
641 | * and must thus decrease the refcount after use. However if |
642 | * this function returns an error code, the field should be | |
643 | * considered unused, and should not be unreferenced. | |
df123801 | 644 | * |
67eb6bcb MH |
645 | * @retval SR_OK Success. |
646 | * @retval SR_ERR Error. | |
647 | * @retval SR_ERR_ARG The driver doesn't know that key, but this is not to be | |
648 | * interpreted as an error by the caller; merely as an indication | |
649 | * that it's not applicable. | |
47117241 UH |
650 | * |
651 | * @since 0.3.0 | |
df123801 | 652 | */ |
8f996b89 ML |
653 | SR_API int sr_config_get(const struct sr_dev_driver *driver, |
654 | const struct sr_dev_inst *sdi, | |
53b4680f | 655 | const struct sr_channel_group *cg, |
584560f1 | 656 | uint32_t key, GVariant **data) |
df123801 BV |
657 | { |
658 | int ret; | |
659 | ||
cbadb856 | 660 | if (!driver || !data) |
df123801 BV |
661 | return SR_ERR; |
662 | ||
6cefe516 BV |
663 | if (!driver->config_get) |
664 | return SR_ERR_ARG; | |
665 | ||
dcd438ee | 666 | if (check_key(driver, sdi, cg, key, SR_CONF_GET, NULL) != SR_OK) |
c6dde812 BV |
667 | return SR_ERR_ARG; |
668 | ||
53b4680f | 669 | if ((ret = driver->config_get(key, data, sdi, cg)) == SR_OK) { |
dcd438ee | 670 | log_key(sdi, cg, key, SR_CONF_GET, *data); |
bc1c2f00 BV |
671 | /* Got a floating reference from the driver. Sink it here, |
672 | * caller will need to unref when done with it. */ | |
673 | g_variant_ref_sink(*data); | |
674 | } | |
df123801 BV |
675 | |
676 | return ret; | |
677 | } | |
678 | ||
cbadb856 | 679 | /** |
67eb6bcb | 680 | * Set value of a configuration key in a device instance. |
cbadb856 | 681 | * |
67eb6bcb | 682 | * @param[in] sdi The device instance. |
53b4680f | 683 | * @param[in] cg The channel group on the device for which to list the |
57ecdbd7 | 684 | * values, or NULL. |
67eb6bcb | 685 | * @param[in] key The configuration key (SR_CONF_*). |
bc1c2f00 BV |
686 | * @param data The new value for the key, as a GVariant with GVariantType |
687 | * appropriate to that key. A floating reference can be passed | |
688 | * in; its refcount will be sunk and unreferenced after use. | |
cbadb856 | 689 | * |
67eb6bcb MH |
690 | * @retval SR_OK Success. |
691 | * @retval SR_ERR Error. | |
692 | * @retval SR_ERR_ARG The driver doesn't know that key, but this is not to be | |
693 | * interpreted as an error by the caller; merely as an indication | |
694 | * that it's not applicable. | |
47117241 UH |
695 | * |
696 | * @since 0.3.0 | |
cbadb856 | 697 | */ |
8f996b89 | 698 | SR_API int sr_config_set(const struct sr_dev_inst *sdi, |
53b4680f | 699 | const struct sr_channel_group *cg, |
584560f1 | 700 | uint32_t key, GVariant *data) |
cbadb856 BV |
701 | { |
702 | int ret; | |
703 | ||
bc1c2f00 | 704 | g_variant_ref_sink(data); |
cbadb856 | 705 | |
bc1c2f00 BV |
706 | if (!sdi || !sdi->driver || !data) |
707 | ret = SR_ERR; | |
708 | else if (!sdi->driver->config_set) | |
709 | ret = SR_ERR_ARG; | |
dcd438ee | 710 | else if (check_key(sdi->driver, sdi, cg, key, SR_CONF_SET, data) != SR_OK) |
c6dde812 | 711 | return SR_ERR_ARG; |
dcd438ee UH |
712 | else if ((ret = sr_variant_type_check(key, data)) == SR_OK) { |
713 | log_key(sdi, cg, key, SR_CONF_SET, data); | |
53b4680f | 714 | ret = sdi->driver->config_set(key, data, sdi, cg); |
dcd438ee | 715 | } |
cbadb856 | 716 | |
bc1c2f00 | 717 | g_variant_unref(data); |
cbadb856 BV |
718 | |
719 | return ret; | |
720 | } | |
721 | ||
2a854d71 DE |
722 | /** |
723 | * Apply configuration settings to the device hardware. | |
724 | * | |
725 | * @param sdi The device instance. | |
726 | * | |
727 | * @return SR_OK upon success or SR_ERR in case of error. | |
47117241 UH |
728 | * |
729 | * @since 0.3.0 | |
2a854d71 DE |
730 | */ |
731 | SR_API int sr_config_commit(const struct sr_dev_inst *sdi) | |
732 | { | |
733 | int ret; | |
734 | ||
735 | if (!sdi || !sdi->driver) | |
736 | ret = SR_ERR; | |
737 | else if (!sdi->driver->config_commit) | |
738 | ret = SR_OK; | |
739 | else | |
740 | ret = sdi->driver->config_commit(sdi); | |
741 | ||
742 | return ret; | |
743 | } | |
744 | ||
cbadb856 BV |
745 | /** |
746 | * List all possible values for a configuration key. | |
747 | * | |
67eb6bcb MH |
748 | * @param[in] driver The sr_dev_driver struct to query. |
749 | * @param[in] sdi (optional) If the key is specific to a device, this must | |
57ecdbd7 | 750 | * contain a pointer to the struct sr_dev_inst to be checked. |
53b4680f | 751 | * @param[in] cg The channel group on the device for which to list the |
57ecdbd7 | 752 | * values, or NULL. |
67eb6bcb MH |
753 | * @param[in] key The configuration key (SR_CONF_*). |
754 | * @param[in,out] data A pointer to a GVariant where the list will be stored. | |
755 | * The caller is given ownership of the GVariant and must thus | |
bc1c2f00 BV |
756 | * unref the GVariant after use. However if this function |
757 | * returns an error code, the field should be considered | |
758 | * unused, and should not be unreferenced. | |
cbadb856 | 759 | * |
67eb6bcb MH |
760 | * @retval SR_OK Success. |
761 | * @retval SR_ERR Error. | |
762 | * @retval SR_ERR_ARG The driver doesn't know that key, but this is not to be | |
763 | * interpreted as an error by the caller; merely as an indication | |
764 | * that it's not applicable. | |
47117241 UH |
765 | * |
766 | * @since 0.3.0 | |
cbadb856 | 767 | */ |
8f996b89 ML |
768 | SR_API int sr_config_list(const struct sr_dev_driver *driver, |
769 | const struct sr_dev_inst *sdi, | |
53b4680f | 770 | const struct sr_channel_group *cg, |
584560f1 | 771 | uint32_t key, GVariant **data) |
c5fb502f BV |
772 | { |
773 | int ret; | |
774 | ||
6cefe516 | 775 | if (!driver || !data) |
8a58419d | 776 | return SR_ERR; |
d8284802 | 777 | else if (!driver->config_list) |
8a58419d | 778 | return SR_ERR_ARG; |
c6dde812 | 779 | else if (key != SR_CONF_SCAN_OPTIONS && key != SR_CONF_DEVICE_OPTIONS) { |
dcd438ee | 780 | if (check_key(driver, sdi, cg, key, SR_CONF_LIST, NULL) != SR_OK) |
c6dde812 BV |
781 | return SR_ERR_ARG; |
782 | } | |
dcd438ee UH |
783 | if ((ret = driver->config_list(key, data, sdi, cg)) == SR_OK) { |
784 | log_key(sdi, cg, key, SR_CONF_LIST, *data); | |
bc1c2f00 | 785 | g_variant_ref_sink(*data); |
dcd438ee | 786 | } |
c5fb502f BV |
787 | |
788 | return ret; | |
789 | } | |
790 | ||
2fb60e23 BV |
791 | static struct sr_key_info *get_keytable(int keytype) |
792 | { | |
793 | struct sr_key_info *table; | |
794 | ||
795 | switch (keytype) { | |
796 | case SR_KEY_CONFIG: | |
797 | table = sr_key_info_config; | |
798 | break; | |
0176c92f BV |
799 | case SR_KEY_MQ: |
800 | table = sr_key_info_mq; | |
801 | break; | |
802 | case SR_KEY_MQFLAGS: | |
803 | table = sr_key_info_mqflag; | |
804 | break; | |
2fb60e23 BV |
805 | default: |
806 | sr_err("Invalid keytype %d", keytype); | |
807 | return NULL; | |
808 | } | |
809 | ||
810 | return table; | |
811 | } | |
812 | ||
8bfdc8c4 | 813 | /** |
2fb60e23 | 814 | * Get information about a key, by key. |
a1645fcd | 815 | * |
2fb60e23 BV |
816 | * @param[in] keytype The namespace the key is in. |
817 | * @param[in] key The key to find. | |
15cb43d6 | 818 | * |
2fb60e23 | 819 | * @return A pointer to a struct sr_key_info, or NULL if the key |
15cb43d6 | 820 | * was not found. |
47117241 | 821 | * |
2fb60e23 | 822 | * @since 0.3.0 |
15cb43d6 | 823 | */ |
2fb60e23 | 824 | SR_API const struct sr_key_info *sr_key_info_get(int keytype, uint32_t key) |
15cb43d6 | 825 | { |
2fb60e23 | 826 | struct sr_key_info *table; |
15cb43d6 BV |
827 | int i; |
828 | ||
2fb60e23 BV |
829 | if (!(table = get_keytable(keytype))) |
830 | return NULL; | |
831 | ||
832 | for (i = 0; table[i].key; i++) { | |
833 | if (table[i].key == key) | |
834 | return &table[i]; | |
15cb43d6 BV |
835 | } |
836 | ||
837 | return NULL; | |
838 | } | |
839 | ||
840 | /** | |
2fb60e23 | 841 | * Get information about a key, by name. |
15cb43d6 | 842 | * |
2fb60e23 BV |
843 | * @param[in] keytype The namespace the key is in. |
844 | * @param[in] keyid The key id string. | |
a1645fcd | 845 | * |
2fb60e23 | 846 | * @return A pointer to a struct sr_key_info, or NULL if the key |
15cb43d6 | 847 | * was not found. |
47117241 UH |
848 | * |
849 | * @since 0.2.0 | |
a1645fcd | 850 | */ |
2fb60e23 | 851 | SR_API const struct sr_key_info *sr_key_info_name_get(int keytype, const char *keyid) |
a1bb33af | 852 | { |
2fb60e23 | 853 | struct sr_key_info *table; |
a1bb33af UH |
854 | int i; |
855 | ||
2fb60e23 BV |
856 | if (!(table = get_keytable(keytype))) |
857 | return NULL; | |
858 | ||
859 | for (i = 0; table[i].key; i++) { | |
860 | if (!table[i].id) | |
a700a3a4 | 861 | continue; |
2fb60e23 BV |
862 | if (!strcmp(table[i].id, keyid)) |
863 | return &table[i]; | |
a1bb33af UH |
864 | } |
865 | ||
49d0ce50 | 866 | return NULL; |
a1bb33af UH |
867 | } |
868 | ||
7b870c38 | 869 | /** @} */ |