1 /* 2 CA-driver for TwinHan DST Frontend/Card 3 4 Copyright (C) 2004, 2005 Manu Abraham (manu@kromtek.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 2 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, write to the Free Software 18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 21 #include <linux/kernel.h> 22 #include <linux/module.h> 23 #include <linux/slab.h> 24 #include <linux/init.h> 25 #include <linux/mutex.h> 26 #include <linux/string.h> 27 #include <linux/dvb/ca.h> 28 #include "dvbdev.h" 29 #include "dvb_frontend.h" 30 #include "dst_ca.h" 31 #include "dst_common.h" 32 33 #define DST_CA_ERROR 0 34 #define DST_CA_NOTICE 1 35 #define DST_CA_INFO 2 36 #define DST_CA_DEBUG 3 37 38 #define dprintk(x, y, z, format, arg...) do { \ 39 if (z) { \ 40 if ((x > DST_CA_ERROR) && (x > y)) \ 41 printk(KERN_ERR "%s: " format "\n", __func__ , ##arg); \ 42 else if ((x > DST_CA_NOTICE) && (x > y)) \ 43 printk(KERN_NOTICE "%s: " format "\n", __func__ , ##arg); \ 44 else if ((x > DST_CA_INFO) && (x > y)) \ 45 printk(KERN_INFO "%s: " format "\n", __func__ , ##arg); \ 46 else if ((x > DST_CA_DEBUG) && (x > y)) \ 47 printk(KERN_DEBUG "%s: " format "\n", __func__ , ##arg); \ 48 } else { \ 49 if (x > y) \ 50 printk(format, ## arg); \ 51 } \ 52 } while(0) 53 54 55 static DEFINE_MUTEX(dst_ca_mutex); 56 static unsigned int verbose = 5; 57 module_param(verbose, int, 0644); 58 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)"); 59 60 /* Need some more work */ 61 static int ca_set_slot_descr(void) 62 { 63 /* We could make this more graceful ? */ 64 return -EOPNOTSUPP; 65 } 66 67 /* Need some more work */ 68 static int ca_set_pid(void) 69 { 70 /* We could make this more graceful ? */ 71 return -EOPNOTSUPP; 72 } 73 74 static void put_command_and_length(u8 *data, int command, int length) 75 { 76 data[0] = (command >> 16) & 0xff; 77 data[1] = (command >> 8) & 0xff; 78 data[2] = command & 0xff; 79 data[3] = length; 80 } 81 82 static void put_checksum(u8 *check_string, int length) 83 { 84 dprintk(verbose, DST_CA_DEBUG, 1, " Computing string checksum."); 85 dprintk(verbose, DST_CA_DEBUG, 1, " -> string length : 0x%02x", length); 86 check_string[length] = dst_check_sum (check_string, length); 87 dprintk(verbose, DST_CA_DEBUG, 1, " -> checksum : 0x%02x", check_string[length]); 88 } 89 90 static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read) 91 { 92 u8 reply; 93 94 mutex_lock(&state->dst_mutex); 95 dst_comm_init(state); 96 msleep(65); 97 98 if (write_dst(state, data, len)) { 99 dprintk(verbose, DST_CA_INFO, 1, " Write not successful, trying to recover"); 100 dst_error_recovery(state); 101 goto error; 102 } 103 if ((dst_pio_disable(state)) < 0) { 104 dprintk(verbose, DST_CA_ERROR, 1, " DST PIO disable failed."); 105 goto error; 106 } 107 if (read_dst(state, &reply, GET_ACK) < 0) { 108 dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover"); 109 dst_error_recovery(state); 110 goto error; 111 } 112 if (read) { 113 if (! dst_wait_dst_ready(state, LONG_DELAY)) { 114 dprintk(verbose, DST_CA_NOTICE, 1, " 8820 not ready"); 115 goto error; 116 } 117 if (read_dst(state, ca_string, 128) < 0) { /* Try to make this dynamic */ 118 dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover"); 119 dst_error_recovery(state); 120 goto error; 121 } 122 } 123 mutex_unlock(&state->dst_mutex); 124 return 0; 125 126 error: 127 mutex_unlock(&state->dst_mutex); 128 return -EIO; 129 } 130 131 132 static int dst_put_ci(struct dst_state *state, u8 *data, int len, u8 *ca_string, int read) 133 { 134 u8 dst_ca_comm_err = 0; 135 136 while (dst_ca_comm_err < RETRIES) { 137 dprintk(verbose, DST_CA_NOTICE, 1, " Put Command"); 138 if (dst_ci_command(state, data, ca_string, len, read)) { // If error 139 dst_error_recovery(state); 140 dst_ca_comm_err++; // work required here. 141 } else { 142 break; 143 } 144 } 145 146 if(dst_ca_comm_err == RETRIES) 147 return -1; 148 149 return 0; 150 } 151 152 153 154 static int ca_get_app_info(struct dst_state *state) 155 { 156 int length, str_length; 157 static u8 command[8] = {0x07, 0x40, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff}; 158 159 put_checksum(&command[0], command[0]); 160 if ((dst_put_ci(state, command, sizeof(command), state->messages, GET_REPLY)) < 0) { 161 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !"); 162 return -1; 163 } 164 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !"); 165 dprintk(verbose, DST_CA_INFO, 1, " ================================ CI Module Application Info ======================================"); 166 dprintk(verbose, DST_CA_INFO, 1, " Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]", 167 state->messages[7], (state->messages[8] << 8) | state->messages[9], 168 (state->messages[10] << 8) | state->messages[11], __func__, (char *)(&state->messages[12])); 169 dprintk(verbose, DST_CA_INFO, 1, " =================================================================================================="); 170 171 // Transform dst message to correct application_info message 172 length = state->messages[5]; 173 str_length = length - 6; 174 if (str_length < 0) { 175 str_length = 0; 176 dprintk(verbose, DST_CA_ERROR, 1, "Invalid string length returned in ca_get_app_info(). Recovering."); 177 } 178 179 // First, the command and length fields 180 put_command_and_length(&state->messages[0], CA_APP_INFO, length); 181 182 // Copy application_type, application_manufacturer and manufacturer_code 183 memmove(&state->messages[4], &state->messages[7], 5); 184 185 // Set string length and copy string 186 state->messages[9] = str_length; 187 memmove(&state->messages[10], &state->messages[12], str_length); 188 189 return 0; 190 } 191 192 static int ca_get_ca_info(struct dst_state *state) 193 { 194 int srcPtr, dstPtr, i, num_ids; 195 static u8 slot_command[8] = {0x07, 0x40, 0x00, 0x00, 0x02, 0x00, 0x00, 0xff}; 196 const int in_system_id_pos = 8, out_system_id_pos = 4, in_num_ids_pos = 7; 197 198 put_checksum(&slot_command[0], slot_command[0]); 199 if ((dst_put_ci(state, slot_command, sizeof (slot_command), state->messages, GET_REPLY)) < 0) { 200 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !"); 201 return -1; 202 } 203 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !"); 204 205 // Print raw data 206 dprintk(verbose, DST_CA_INFO, 0, " DST data = ["); 207 for (i = 0; i < state->messages[0] + 1; i++) { 208 dprintk(verbose, DST_CA_INFO, 0, " 0x%02x", state->messages[i]); 209 } 210 dprintk(verbose, DST_CA_INFO, 0, "]\n"); 211 212 // Set the command and length of the output 213 num_ids = state->messages[in_num_ids_pos]; 214 if (num_ids >= 100) { 215 num_ids = 100; 216 dprintk(verbose, DST_CA_ERROR, 1, "Invalid number of ids (>100). Recovering."); 217 } 218 put_command_and_length(&state->messages[0], CA_INFO, num_ids * 2); 219 220 dprintk(verbose, DST_CA_INFO, 0, " CA_INFO = ["); 221 srcPtr = in_system_id_pos; 222 dstPtr = out_system_id_pos; 223 for(i = 0; i < num_ids; i++) { 224 dprintk(verbose, DST_CA_INFO, 0, " 0x%02x%02x", state->messages[srcPtr + 0], state->messages[srcPtr + 1]); 225 // Append to output 226 state->messages[dstPtr + 0] = state->messages[srcPtr + 0]; 227 state->messages[dstPtr + 1] = state->messages[srcPtr + 1]; 228 srcPtr += 2; 229 dstPtr += 2; 230 } 231 dprintk(verbose, DST_CA_INFO, 0, "]\n"); 232 233 return 0; 234 } 235 236 static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void __user *arg) 237 { 238 int i; 239 u8 slot_cap[256]; 240 static u8 slot_command[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff}; 241 242 put_checksum(&slot_command[0], slot_command[0]); 243 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) { 244 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !"); 245 return -1; 246 } 247 dprintk(verbose, DST_CA_NOTICE, 1, " -->dst_put_ci SUCCESS !"); 248 249 /* Will implement the rest soon */ 250 251 dprintk(verbose, DST_CA_INFO, 1, " Slot cap = [%d]", slot_cap[7]); 252 dprintk(verbose, DST_CA_INFO, 0, "===================================\n"); 253 for (i = 0; i < slot_cap[0] + 1; i++) 254 dprintk(verbose, DST_CA_INFO, 0, " %d", slot_cap[i]); 255 dprintk(verbose, DST_CA_INFO, 0, "\n"); 256 257 p_ca_caps->slot_num = 1; 258 p_ca_caps->slot_type = 1; 259 p_ca_caps->descr_num = slot_cap[7]; 260 p_ca_caps->descr_type = 1; 261 262 if (copy_to_user(arg, p_ca_caps, sizeof (struct ca_caps))) 263 return -EFAULT; 264 265 return 0; 266 } 267 268 /* Need some more work */ 269 static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg) 270 { 271 return -EOPNOTSUPP; 272 } 273 274 275 static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void __user *arg) 276 { 277 int i; 278 static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff}; 279 280 u8 *slot_info = state->messages; 281 282 put_checksum(&slot_command[0], 7); 283 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) { 284 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !"); 285 return -1; 286 } 287 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !"); 288 289 /* Will implement the rest soon */ 290 291 dprintk(verbose, DST_CA_INFO, 1, " Slot info = [%d]", slot_info[3]); 292 dprintk(verbose, DST_CA_INFO, 0, "===================================\n"); 293 for (i = 0; i < 8; i++) 294 dprintk(verbose, DST_CA_INFO, 0, " %d", slot_info[i]); 295 dprintk(verbose, DST_CA_INFO, 0, "\n"); 296 297 if (slot_info[4] & 0x80) { 298 p_ca_slot_info->flags = CA_CI_MODULE_PRESENT; 299 p_ca_slot_info->num = 1; 300 p_ca_slot_info->type = CA_CI; 301 } else if (slot_info[4] & 0x40) { 302 p_ca_slot_info->flags = CA_CI_MODULE_READY; 303 p_ca_slot_info->num = 1; 304 p_ca_slot_info->type = CA_CI; 305 } else 306 p_ca_slot_info->flags = 0; 307 308 if (copy_to_user(arg, p_ca_slot_info, sizeof (struct ca_slot_info))) 309 return -EFAULT; 310 311 return 0; 312 } 313 314 315 static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg) 316 { 317 u8 i = 0; 318 u32 command = 0; 319 320 if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg))) 321 return -EFAULT; 322 323 dprintk(verbose, DST_CA_NOTICE, 1, " Message = [%*ph]", 324 3, p_ca_message->msg); 325 326 for (i = 0; i < 3; i++) { 327 command = command | p_ca_message->msg[i]; 328 if (i < 2) 329 command = command << 8; 330 } 331 dprintk(verbose, DST_CA_NOTICE, 1, " Command=[0x%x]", command); 332 333 switch (command) { 334 case CA_APP_INFO: 335 memcpy(p_ca_message->msg, state->messages, 128); 336 if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) ) 337 return -EFAULT; 338 break; 339 case CA_INFO: 340 memcpy(p_ca_message->msg, state->messages, 128); 341 if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) ) 342 return -EFAULT; 343 break; 344 } 345 346 return 0; 347 } 348 349 static int handle_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u32 length) 350 { 351 if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) { 352 hw_buffer->msg[2] = p_ca_message->msg[1]; /* MSB */ 353 hw_buffer->msg[3] = p_ca_message->msg[2]; /* LSB */ 354 } else { 355 if (length > 247) { 356 dprintk(verbose, DST_CA_ERROR, 1, " Message too long ! *** Bailing Out *** !"); 357 return -1; 358 } 359 hw_buffer->msg[0] = (length & 0xff) + 7; 360 hw_buffer->msg[1] = 0x40; 361 hw_buffer->msg[2] = 0x03; 362 hw_buffer->msg[3] = 0x00; 363 hw_buffer->msg[4] = 0x03; 364 hw_buffer->msg[5] = length & 0xff; 365 hw_buffer->msg[6] = 0x00; 366 367 /* 368 * Need to compute length for EN50221 section 8.3.2, for the time being 369 * assuming 8.3.2 is not applicable 370 */ 371 memcpy(&hw_buffer->msg[7], &p_ca_message->msg[4], length); 372 } 373 374 return 0; 375 } 376 377 static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 length, u8 reply) 378 { 379 if ((dst_put_ci(state, hw_buffer->msg, length, hw_buffer->msg, reply)) < 0) { 380 dprintk(verbose, DST_CA_ERROR, 1, " DST-CI Command failed."); 381 dprintk(verbose, DST_CA_NOTICE, 1, " Resetting DST."); 382 rdc_reset_state(state); 383 return -1; 384 } 385 dprintk(verbose, DST_CA_NOTICE, 1, " DST-CI Command success."); 386 387 return 0; 388 } 389 390 static u32 asn_1_decode(u8 *asn_1_array) 391 { 392 u8 length_field = 0, word_count = 0, count = 0; 393 u32 length = 0; 394 395 length_field = asn_1_array[0]; 396 dprintk(verbose, DST_CA_DEBUG, 1, " Length field=[%02x]", length_field); 397 if (length_field < 0x80) { 398 length = length_field & 0x7f; 399 dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%02x]\n", length); 400 } else { 401 word_count = length_field & 0x7f; 402 for (count = 0; count < word_count; count++) { 403 length = length << 8; 404 length += asn_1_array[count + 1]; 405 dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%04x]", length); 406 } 407 } 408 return length; 409 } 410 411 static int debug_string(u8 *msg, u32 length, u32 offset) 412 { 413 u32 i; 414 415 dprintk(verbose, DST_CA_DEBUG, 0, " String=[ "); 416 for (i = offset; i < length; i++) 417 dprintk(verbose, DST_CA_DEBUG, 0, "%02x ", msg[i]); 418 dprintk(verbose, DST_CA_DEBUG, 0, "]\n"); 419 420 return 0; 421 } 422 423 424 static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query) 425 { 426 u32 length = 0; 427 u8 tag_length = 8; 428 429 length = asn_1_decode(&p_ca_message->msg[3]); 430 dprintk(verbose, DST_CA_DEBUG, 1, " CA Message length=[%d]", length); 431 debug_string(&p_ca_message->msg[4], length, 0); /* length is excluding tag & length */ 432 433 memset(hw_buffer->msg, '\0', length); 434 handle_dst_tag(state, p_ca_message, hw_buffer, length); 435 put_checksum(hw_buffer->msg, hw_buffer->msg[0]); 436 437 debug_string(hw_buffer->msg, (length + tag_length), 0); /* tags too */ 438 write_to_8820(state, hw_buffer, (length + tag_length), reply); 439 440 return 0; 441 } 442 443 444 /* Board supports CA PMT reply ? */ 445 static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer) 446 { 447 int ca_pmt_reply_test = 0; 448 449 /* Do test board */ 450 /* Not there yet but soon */ 451 452 /* CA PMT Reply capable */ 453 if (ca_pmt_reply_test) { 454 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) { 455 dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !"); 456 return -1; 457 } 458 459 /* Process CA PMT Reply */ 460 /* will implement soon */ 461 dprintk(verbose, DST_CA_ERROR, 1, " Not there yet"); 462 } 463 /* CA PMT Reply not capable */ 464 if (!ca_pmt_reply_test) { 465 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) { 466 dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !"); 467 return -1; 468 } 469 dprintk(verbose, DST_CA_NOTICE, 1, " ca_set_pmt.. success !"); 470 /* put a dummy message */ 471 472 } 473 return 0; 474 } 475 476 static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg) 477 { 478 int i = 0; 479 480 u32 command = 0; 481 struct ca_msg *hw_buffer; 482 int result = 0; 483 484 if ((hw_buffer = kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) { 485 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure"); 486 return -ENOMEM; 487 } 488 dprintk(verbose, DST_CA_DEBUG, 1, " "); 489 490 if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg))) { 491 result = -EFAULT; 492 goto free_mem_and_exit; 493 } 494 495 /* EN50221 tag */ 496 command = 0; 497 498 for (i = 0; i < 3; i++) { 499 command = command | p_ca_message->msg[i]; 500 if (i < 2) 501 command = command << 8; 502 } 503 dprintk(verbose, DST_CA_DEBUG, 1, " Command=[0x%x]\n", command); 504 505 switch (command) { 506 case CA_PMT: 507 dprintk(verbose, DST_CA_DEBUG, 1, "Command = SEND_CA_PMT"); 508 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) { // code simplification started 509 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT Failed !"); 510 result = -1; 511 goto free_mem_and_exit; 512 } 513 dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT Success !"); 514 break; 515 case CA_PMT_REPLY: 516 dprintk(verbose, DST_CA_INFO, 1, "Command = CA_PMT_REPLY"); 517 /* Have to handle the 2 basic types of cards here */ 518 if ((dst_check_ca_pmt(state, p_ca_message, hw_buffer)) < 0) { 519 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT_REPLY Failed !"); 520 result = -1; 521 goto free_mem_and_exit; 522 } 523 dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT_REPLY Success !"); 524 break; 525 case CA_APP_INFO_ENQUIRY: // only for debugging 526 dprintk(verbose, DST_CA_INFO, 1, " Getting Cam Application information"); 527 528 if ((ca_get_app_info(state)) < 0) { 529 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_APP_INFO_ENQUIRY Failed !"); 530 result = -1; 531 goto free_mem_and_exit; 532 } 533 dprintk(verbose, DST_CA_INFO, 1, " -->CA_APP_INFO_ENQUIRY Success !"); 534 break; 535 case CA_INFO_ENQUIRY: 536 dprintk(verbose, DST_CA_INFO, 1, " Getting CA Information"); 537 538 if ((ca_get_ca_info(state)) < 0) { 539 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_INFO_ENQUIRY Failed !"); 540 result = -1; 541 goto free_mem_and_exit; 542 } 543 dprintk(verbose, DST_CA_INFO, 1, " -->CA_INFO_ENQUIRY Success !"); 544 break; 545 } 546 547 free_mem_and_exit: 548 kfree (hw_buffer); 549 550 return result; 551 } 552 553 static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioctl_arg) 554 { 555 struct dvb_device *dvbdev; 556 struct dst_state *state; 557 struct ca_slot_info *p_ca_slot_info; 558 struct ca_caps *p_ca_caps; 559 struct ca_msg *p_ca_message; 560 void __user *arg = (void __user *)ioctl_arg; 561 int result = 0; 562 563 mutex_lock(&dst_ca_mutex); 564 dvbdev = file->private_data; 565 state = (struct dst_state *)dvbdev->priv; 566 p_ca_message = kmalloc(sizeof (struct ca_msg), GFP_KERNEL); 567 p_ca_slot_info = kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL); 568 p_ca_caps = kmalloc(sizeof (struct ca_caps), GFP_KERNEL); 569 if (!p_ca_message || !p_ca_slot_info || !p_ca_caps) { 570 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure"); 571 result = -ENOMEM; 572 goto free_mem_and_exit; 573 } 574 575 /* We have now only the standard ioctl's, the driver is upposed to handle internals. */ 576 switch (cmd) { 577 case CA_SEND_MSG: 578 dprintk(verbose, DST_CA_INFO, 1, " Sending message"); 579 if ((ca_send_message(state, p_ca_message, arg)) < 0) { 580 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SEND_MSG Failed !"); 581 result = -1; 582 goto free_mem_and_exit; 583 } 584 break; 585 case CA_GET_MSG: 586 dprintk(verbose, DST_CA_INFO, 1, " Getting message"); 587 if ((ca_get_message(state, p_ca_message, arg)) < 0) { 588 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_MSG Failed !"); 589 result = -1; 590 goto free_mem_and_exit; 591 } 592 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_MSG Success !"); 593 break; 594 case CA_RESET: 595 dprintk(verbose, DST_CA_ERROR, 1, " Resetting DST"); 596 dst_error_bailout(state); 597 msleep(4000); 598 break; 599 case CA_GET_SLOT_INFO: 600 dprintk(verbose, DST_CA_INFO, 1, " Getting Slot info"); 601 if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) { 602 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_SLOT_INFO Failed !"); 603 result = -1; 604 goto free_mem_and_exit; 605 } 606 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_SLOT_INFO Success !"); 607 break; 608 case CA_GET_CAP: 609 dprintk(verbose, DST_CA_INFO, 1, " Getting Slot capabilities"); 610 if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) { 611 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_CAP Failed !"); 612 result = -1; 613 goto free_mem_and_exit; 614 } 615 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_CAP Success !"); 616 break; 617 case CA_GET_DESCR_INFO: 618 dprintk(verbose, DST_CA_INFO, 1, " Getting descrambler description"); 619 if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) { 620 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_DESCR_INFO Failed !"); 621 result = -1; 622 goto free_mem_and_exit; 623 } 624 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_DESCR_INFO Success !"); 625 break; 626 case CA_SET_DESCR: 627 dprintk(verbose, DST_CA_INFO, 1, " Setting descrambler"); 628 if ((ca_set_slot_descr()) < 0) { 629 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_DESCR Failed !"); 630 result = -1; 631 goto free_mem_and_exit; 632 } 633 dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_DESCR Success !"); 634 break; 635 case CA_SET_PID: 636 dprintk(verbose, DST_CA_INFO, 1, " Setting PID"); 637 if ((ca_set_pid()) < 0) { 638 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_PID Failed !"); 639 result = -1; 640 goto free_mem_and_exit; 641 } 642 dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_PID Success !"); 643 default: 644 result = -EOPNOTSUPP; 645 } 646 free_mem_and_exit: 647 kfree (p_ca_message); 648 kfree (p_ca_slot_info); 649 kfree (p_ca_caps); 650 651 mutex_unlock(&dst_ca_mutex); 652 return result; 653 } 654 655 static int dst_ca_open(struct inode *inode, struct file *file) 656 { 657 dprintk(verbose, DST_CA_DEBUG, 1, " Device opened [%p] ", file); 658 try_module_get(THIS_MODULE); 659 660 return 0; 661 } 662 663 static int dst_ca_release(struct inode *inode, struct file *file) 664 { 665 dprintk(verbose, DST_CA_DEBUG, 1, " Device closed."); 666 module_put(THIS_MODULE); 667 668 return 0; 669 } 670 671 static ssize_t dst_ca_read(struct file *file, char __user *buffer, size_t length, loff_t *offset) 672 { 673 dprintk(verbose, DST_CA_DEBUG, 1, " Device read."); 674 675 return 0; 676 } 677 678 static ssize_t dst_ca_write(struct file *file, const char __user *buffer, size_t length, loff_t *offset) 679 { 680 dprintk(verbose, DST_CA_DEBUG, 1, " Device write."); 681 682 return 0; 683 } 684 685 static const struct file_operations dst_ca_fops = { 686 .owner = THIS_MODULE, 687 .unlocked_ioctl = dst_ca_ioctl, 688 .open = dst_ca_open, 689 .release = dst_ca_release, 690 .read = dst_ca_read, 691 .write = dst_ca_write, 692 .llseek = noop_llseek, 693 }; 694 695 static struct dvb_device dvbdev_ca = { 696 .priv = NULL, 697 .users = 1, 698 .readers = 1, 699 .writers = 1, 700 .fops = &dst_ca_fops 701 }; 702 703 struct dvb_device *dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_adapter) 704 { 705 struct dvb_device *dvbdev; 706 707 dprintk(verbose, DST_CA_ERROR, 1, "registering DST-CA device"); 708 if (dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, 709 DVB_DEVICE_CA, 0) == 0) { 710 dst->dst_ca = dvbdev; 711 return dst->dst_ca; 712 } 713 714 return NULL; 715 } 716 717 EXPORT_SYMBOL(dst_ca_attach); 718 719 MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver"); 720 MODULE_AUTHOR("Manu Abraham"); 721 MODULE_LICENSE("GPL"); 722