/* * libdvbca - interface onto raw CA devices * * Copyright (C) 2006 Andrew de Quincey (adq_dvb@lidskialf.net) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ #ifndef LIBDVBCA_H #define LIBDVBCA_H 1 #ifdef __cplusplus extern "C" { #endif #include /** * The types of CA interface we support. */ #define DVBCA_INTERFACE_LINK 0 #define DVBCA_INTERFACE_HLCI 1 /** * States a CAM in a slot can be in. */ #define DVBCA_CAMSTATE_MISSING 0 #define DVBCA_CAMSTATE_INITIALISING 1 #define DVBCA_CAMSTATE_READY 2 /** * Open a CA device. Multiple CAMs can be accessed through a CA device. * * @param adapter Index of the DVB adapter. * @param cadevice Index of the CA device on that adapter (usually 0). * @return A unix file descriptor on success, or -1 on failure. */ extern int dvbca_open(int adapter, int cadevice); /** * Reset a CAM. * * @param fd File handle opened with dvbca_open. * @param slot Slot where the requested CAM is in. * @return 0 on success, -1 on failure. */ extern int dvbca_reset(int fd, uint8_t slot); /** * Get the interface type of a CAM. * * @param fd File handle opened with dvbca_open. * @param slot Slot where the requested CAM is in. * @return One of the DVBCA_INTERFACE_* values, or -1 on failure. */ extern int dvbca_get_interface_type(int fd, uint8_t slot); /** * Get the state of a CAM. * * @param fd File handle opened with dvbca_open. * @param slot Slot where the requested CAM is in. * @return One of the DVBCA_CAMSTATE_* values, or -1 on failure. */ extern int dvbca_get_cam_state(int fd, uint8_t slot); /** * Write a message to a CAM using a link-layer interface. * * @param fd File handle opened with dvbca_open. * @param slot Slot where the requested CAM is in. * @param connection_id Connection ID of the message. * @param data Data to write. * @param data_length Number of bytes to write. * @return 0 on success, or -1 on failure. */ extern int dvbca_link_write(int fd, uint8_t slot, uint8_t connection_id, uint8_t *data, uint16_t data_length); /** * Read a message from a CAM using a link-layer interface. * * @param fd File handle opened with dvbca_open. * @param slot Slot where the responding CAM is in. * @param connection_id Destination for the connection ID the message came from. * @param data Data that was read. * @param data_length Max number of bytes to read. * @return Number of bytes read on success, or -1 on failure. */ extern int dvbca_link_read(int fd, uint8_t *slot, uint8_t *connection_id, uint8_t *data, uint16_t data_length); // FIXME how do we determine which CAM slot of a CA is meant? /** * Write a message to a CAM using an HLCI interface. * * @param fd File handle opened with dvbca_open. * @param data Data to write. * @param data_length Number of bytes to write. * @return 0 on success, or -1 on failure. */ extern int dvbca_hlci_write(int fd, uint8_t *data, uint16_t data_length); // FIXME how do we determine which CAM slot of a CA is meant? /** * Read a message from a CAM using an HLCI interface. * * @param fd File handle opened with dvbca_open. * @param app_tag Application layer tag giving the message type to read. * @param data Data that was read. * @param data_length Max number of bytes to read. * @return Number of bytes read on success, or -1 on failure. */ extern int dvbca_hlci_read(int fd, uint32_t app_tag, uint8_t *data, uint16_t data_length); #ifdef __cplusplus } #endif #endif // LIBDVBCA_H n25'>25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367