Johannes Stezenbach | 50b215a | 2005-05-16 21:54:41 -0700 | [diff] [blame^] | 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 | |
| 22 | |
| 23 | #include <linux/kernel.h> |
| 24 | #include <linux/module.h> |
| 25 | #include <linux/init.h> |
| 26 | #include <linux/string.h> |
| 27 | |
| 28 | #include <linux/dvb/ca.h> |
| 29 | #include "dvbdev.h" |
| 30 | #include "dvb_frontend.h" |
| 31 | |
| 32 | #include "dst_ca.h" |
| 33 | #include "dst_common.h" |
| 34 | |
| 35 | static unsigned int verbose = 1; |
| 36 | module_param(verbose, int, 0644); |
| 37 | MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)"); |
| 38 | |
| 39 | static unsigned int debug = 1; |
| 40 | module_param(debug, int, 0644); |
| 41 | MODULE_PARM_DESC(dst_ca_debug, "debug messages, default is 0 (yes)"); |
| 42 | |
| 43 | static unsigned int session; |
| 44 | module_param(session, int, 0644); |
| 45 | MODULE_PARM_DESC(session, "Support for hardware that has multiple sessions, default 0"); |
| 46 | |
| 47 | static unsigned int new_ca; |
| 48 | module_param(new_ca, int, 0644); |
| 49 | MODULE_PARM_DESC(new_ca, "Support for the new CA interface firmware, default 0"); |
| 50 | |
| 51 | #define dprintk if (debug) printk |
| 52 | |
| 53 | |
| 54 | static int ca_set_slot_descr(void) |
| 55 | { |
| 56 | /* We could make this more graceful ? */ |
| 57 | return -EOPNOTSUPP; |
| 58 | } |
| 59 | |
| 60 | static int ca_set_pid(void) |
| 61 | { |
| 62 | /* We could make this more graceful ? */ |
| 63 | return -EOPNOTSUPP; |
| 64 | } |
| 65 | |
| 66 | |
| 67 | static int put_checksum(u8 *check_string, int length) |
| 68 | { |
| 69 | u8 i = 0, checksum = 0; |
| 70 | |
| 71 | if (verbose > 3) { |
| 72 | dprintk("%s: ========================= Checksum calculation ===========================\n", __FUNCTION__); |
| 73 | dprintk("%s: String Length=[0x%02x]\n", __FUNCTION__, length); |
| 74 | |
| 75 | dprintk("%s: String=[", __FUNCTION__); |
| 76 | } |
| 77 | while (i < length) { |
| 78 | if (verbose > 3) |
| 79 | dprintk(" %02x", check_string[i]); |
| 80 | checksum += check_string[i]; |
| 81 | i++; |
| 82 | } |
| 83 | if (verbose > 3) { |
| 84 | dprintk(" ]\n"); |
| 85 | dprintk("%s: Sum=[%02x]\n", __FUNCTION__, checksum); |
| 86 | } |
| 87 | check_string[length] = ~checksum + 1; |
| 88 | if (verbose > 3) { |
| 89 | dprintk("%s: Checksum=[%02x]\n", __FUNCTION__, check_string[length]); |
| 90 | dprintk("%s: ==========================================================================\n", __FUNCTION__); |
| 91 | } |
| 92 | |
| 93 | return 0; |
| 94 | } |
| 95 | |
| 96 | static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read) |
| 97 | { |
| 98 | u8 reply; |
| 99 | |
| 100 | dst_comm_init(state); |
| 101 | msleep(65); |
| 102 | |
| 103 | if (write_dst(state, data, len)) { |
| 104 | dprintk("%s: Write not successful, trying to recover\n", __FUNCTION__); |
| 105 | dst_error_recovery(state); |
| 106 | return -1; |
| 107 | } |
| 108 | |
| 109 | if ((dst_pio_disable(state)) < 0) { |
| 110 | dprintk("%s: DST PIO disable failed.\n", __FUNCTION__); |
| 111 | return -1; |
| 112 | } |
| 113 | |
| 114 | if (read_dst(state, &reply, GET_ACK) < 0) { |
| 115 | dprintk("%s: Read not successful, trying to recover\n", __FUNCTION__); |
| 116 | dst_error_recovery(state); |
| 117 | return -1; |
| 118 | } |
| 119 | |
| 120 | if (read) { |
| 121 | if (! dst_wait_dst_ready(state, LONG_DELAY)) { |
| 122 | dprintk("%s: 8820 not ready\n", __FUNCTION__); |
| 123 | return -1; |
| 124 | } |
| 125 | |
| 126 | if (read_dst(state, ca_string, 128) < 0) { /* Try to make this dynamic */ |
| 127 | dprintk("%s: Read not successful, trying to recover\n", __FUNCTION__); |
| 128 | dst_error_recovery(state); |
| 129 | return -1; |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | return 0; |
| 134 | } |
| 135 | |
| 136 | |
| 137 | static int dst_put_ci(struct dst_state *state, u8 *data, int len, u8 *ca_string, int read) |
| 138 | { |
| 139 | u8 dst_ca_comm_err = 0; |
| 140 | |
| 141 | while (dst_ca_comm_err < RETRIES) { |
| 142 | dst_comm_init(state); |
| 143 | if (verbose > 2) |
| 144 | dprintk("%s: Put Command\n", __FUNCTION__); |
| 145 | if (dst_ci_command(state, data, ca_string, len, read)) { // If error |
| 146 | dst_error_recovery(state); |
| 147 | dst_ca_comm_err++; // work required here. |
| 148 | } |
| 149 | break; |
| 150 | } |
| 151 | |
| 152 | return 0; |
| 153 | } |
| 154 | |
| 155 | |
| 156 | |
| 157 | static int ca_get_app_info(struct dst_state *state) |
| 158 | { |
| 159 | static u8 command[8] = {0x07, 0x40, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff}; |
| 160 | |
| 161 | put_checksum(&command[0], command[0]); |
| 162 | if ((dst_put_ci(state, command, sizeof(command), state->messages, GET_REPLY)) < 0) { |
| 163 | dprintk("%s: -->dst_put_ci FAILED !\n", __FUNCTION__); |
| 164 | return -1; |
| 165 | } |
| 166 | if (verbose > 1) { |
| 167 | dprintk("%s: -->dst_put_ci SUCCESS !\n", __FUNCTION__); |
| 168 | |
| 169 | dprintk("%s: ================================ CI Module Application Info ======================================\n", __FUNCTION__); |
| 170 | dprintk("%s: Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]\n", |
| 171 | __FUNCTION__, state->messages[7], (state->messages[8] << 8) | state->messages[9], |
| 172 | (state->messages[10] << 8) | state->messages[11], __FUNCTION__, (char *)(&state->messages[11])); |
| 173 | dprintk("%s: ==================================================================================================\n", __FUNCTION__); |
| 174 | } |
| 175 | |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void *arg) |
| 180 | { |
| 181 | int i; |
| 182 | u8 slot_cap[256]; |
| 183 | static u8 slot_command[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff}; |
| 184 | |
| 185 | put_checksum(&slot_command[0], slot_command[0]); |
| 186 | if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) { |
| 187 | dprintk("%s: -->dst_put_ci FAILED !\n", __FUNCTION__); |
| 188 | return -1; |
| 189 | } |
| 190 | if (verbose > 1) |
| 191 | dprintk("%s: -->dst_put_ci SUCCESS !\n", __FUNCTION__); |
| 192 | |
| 193 | /* Will implement the rest soon */ |
| 194 | |
| 195 | if (verbose > 1) { |
| 196 | dprintk("%s: Slot cap = [%d]\n", __FUNCTION__, slot_cap[7]); |
| 197 | dprintk("===================================\n"); |
| 198 | for (i = 0; i < 8; i++) |
| 199 | dprintk(" %d", slot_cap[i]); |
| 200 | dprintk("\n"); |
| 201 | } |
| 202 | |
| 203 | p_ca_caps->slot_num = 1; |
| 204 | p_ca_caps->slot_type = 1; |
| 205 | p_ca_caps->descr_num = slot_cap[7]; |
| 206 | p_ca_caps->descr_type = 1; |
| 207 | |
| 208 | |
| 209 | if (copy_to_user((struct ca_caps *)arg, p_ca_caps, sizeof (struct ca_caps))) { |
| 210 | return -EFAULT; |
| 211 | } |
| 212 | |
| 213 | return 0; |
| 214 | } |
| 215 | |
| 216 | |
| 217 | static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void *arg) |
| 218 | { |
| 219 | return -EOPNOTSUPP; |
| 220 | } |
| 221 | |
| 222 | |
| 223 | static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void *arg) |
| 224 | { |
| 225 | int i; |
| 226 | static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff}; |
| 227 | |
| 228 | u8 *slot_info = state->rxbuffer; |
| 229 | |
| 230 | put_checksum(&slot_command[0], 7); |
| 231 | if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) { |
| 232 | dprintk("%s: -->dst_put_ci FAILED !\n", __FUNCTION__); |
| 233 | return -1; |
| 234 | } |
| 235 | if (verbose > 1) |
| 236 | dprintk("%s: -->dst_put_ci SUCCESS !\n", __FUNCTION__); |
| 237 | |
| 238 | /* Will implement the rest soon */ |
| 239 | |
| 240 | if (verbose > 1) { |
| 241 | dprintk("%s: Slot info = [%d]\n", __FUNCTION__, slot_info[3]); |
| 242 | dprintk("===================================\n"); |
| 243 | for (i = 0; i < 8; i++) |
| 244 | dprintk(" %d", slot_info[i]); |
| 245 | dprintk("\n"); |
| 246 | } |
| 247 | |
| 248 | if (slot_info[4] & 0x80) { |
| 249 | p_ca_slot_info->flags = CA_CI_MODULE_PRESENT; |
| 250 | p_ca_slot_info->num = 1; |
| 251 | p_ca_slot_info->type = CA_CI; |
| 252 | } |
| 253 | else if (slot_info[4] & 0x40) { |
| 254 | p_ca_slot_info->flags = CA_CI_MODULE_READY; |
| 255 | p_ca_slot_info->num = 1; |
| 256 | p_ca_slot_info->type = CA_CI; |
| 257 | } |
| 258 | else { |
| 259 | p_ca_slot_info->flags = 0; |
| 260 | } |
| 261 | |
| 262 | if (copy_to_user((struct ca_slot_info *)arg, p_ca_slot_info, sizeof (struct ca_slot_info))) { |
| 263 | return -EFAULT; |
| 264 | } |
| 265 | |
| 266 | return 0; |
| 267 | } |
| 268 | |
| 269 | |
| 270 | |
| 271 | |
| 272 | static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void *arg) |
| 273 | { |
| 274 | u8 i = 0; |
| 275 | u32 command = 0; |
| 276 | |
| 277 | if (copy_from_user(p_ca_message, (void *)arg, sizeof (struct ca_msg))) |
| 278 | return -EFAULT; |
| 279 | |
| 280 | |
| 281 | if (p_ca_message->msg) { |
| 282 | if (verbose > 3) |
| 283 | dprintk("Message = [%02x %02x %02x]\n", p_ca_message->msg[0], p_ca_message->msg[1], p_ca_message->msg[2]); |
| 284 | |
| 285 | for (i = 0; i < 3; i++) { |
| 286 | command = command | p_ca_message->msg[i]; |
| 287 | if (i < 2) |
| 288 | command = command << 8; |
| 289 | } |
| 290 | if (verbose > 3) |
| 291 | dprintk("%s:Command=[0x%x]\n", __FUNCTION__, command); |
| 292 | |
| 293 | switch (command) { |
| 294 | case CA_APP_INFO: |
| 295 | memcpy(p_ca_message->msg, state->messages, 128); |
| 296 | if (copy_to_user((void *)arg, p_ca_message, sizeof (struct ca_msg)) ) |
| 297 | return -EFAULT; |
| 298 | break; |
| 299 | } |
| 300 | } |
| 301 | |
| 302 | return 0; |
| 303 | } |
| 304 | |
| 305 | static int handle_en50221_tag(struct ca_msg *p_ca_message, struct ca_msg *hw_buffer) |
| 306 | { |
| 307 | if (session) { |
| 308 | hw_buffer->msg[2] = p_ca_message->msg[1]; /* MSB */ |
| 309 | hw_buffer->msg[3] = p_ca_message->msg[2]; /* LSB */ |
| 310 | } |
| 311 | else { |
| 312 | hw_buffer->msg[2] = 0x03; |
| 313 | hw_buffer->msg[3] = 0x00; |
| 314 | } |
| 315 | return 0; |
| 316 | } |
| 317 | |
| 318 | static int debug_8820_buffer(struct ca_msg *hw_buffer) |
| 319 | { |
| 320 | unsigned int i; |
| 321 | |
| 322 | dprintk("%s:Debug=[", __FUNCTION__); |
| 323 | for (i = 0; i < (hw_buffer->msg[0] + 1); i++) |
| 324 | dprintk(" %02x", hw_buffer->msg[i]); |
| 325 | dprintk("]\n"); |
| 326 | |
| 327 | return 0; |
| 328 | } |
| 329 | |
| 330 | static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 reply) |
| 331 | { |
| 332 | if ((dst_put_ci(state, hw_buffer->msg, (hw_buffer->length + 1), hw_buffer->msg, reply)) < 0) { |
| 333 | dprintk("%s: DST-CI Command failed.\n", __FUNCTION__); |
| 334 | dprintk("%s: Resetting DST.\n", __FUNCTION__); |
| 335 | rdc_reset_state(state); |
| 336 | return -1; |
| 337 | } |
| 338 | if (verbose > 2) |
| 339 | dprintk("%s: DST-CI Command succes.\n", __FUNCTION__); |
| 340 | |
| 341 | return 0; |
| 342 | } |
| 343 | |
| 344 | |
| 345 | static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query) |
| 346 | { |
| 347 | u32 hw_offset, buf_offset, i, k; |
| 348 | u32 program_info_length = 0, es_info_length = 0, length = 0, words = 0; |
| 349 | u8 found_prog_ca_desc = 0, found_stream_ca_desc = 0, error_condition = 0, hw_buffer_length = 0; |
| 350 | |
| 351 | if (verbose > 3) |
| 352 | dprintk("%s, p_ca_message length %d (0x%x)\n", __FUNCTION__,p_ca_message->length,p_ca_message->length ); |
| 353 | |
| 354 | handle_en50221_tag(p_ca_message, hw_buffer); /* EN50221 tag */ |
| 355 | |
| 356 | /* Handle the length field (variable) */ |
| 357 | if (!(p_ca_message->msg[3] & 0x80)) { /* Length = 1 */ |
| 358 | length = p_ca_message->msg[3] & 0x7f; |
| 359 | words = 0; /* domi's suggestion */ |
| 360 | } |
| 361 | else { /* Length = words */ |
| 362 | words = p_ca_message->msg[3] & 0x7f; |
| 363 | for (i = 0; i < words; i++) { |
| 364 | length = length << 8; |
| 365 | length = length | p_ca_message->msg[4 + i]; |
| 366 | } |
| 367 | } |
| 368 | if (verbose > 4) { |
| 369 | dprintk("%s:Length=[%d (0x%x)], Words=[%d]\n", __FUNCTION__, length,length, words); |
| 370 | |
| 371 | /* Debug Input string */ |
| 372 | for (i = 0; i < length; i++) |
| 373 | dprintk(" %02x", p_ca_message->msg[i]); |
| 374 | dprintk("]\n"); |
| 375 | } |
| 376 | |
| 377 | hw_offset = 7; |
| 378 | buf_offset = words + 4; |
| 379 | |
| 380 | /* Program Header */ |
| 381 | if (verbose > 4) |
| 382 | dprintk("\n%s:Program Header=[", __FUNCTION__); |
| 383 | for (i = 0; i < 6; i++) { |
| 384 | hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset]; |
| 385 | if (verbose > 4) |
| 386 | dprintk(" %02x", p_ca_message->msg[buf_offset]); |
| 387 | hw_offset++, buf_offset++, hw_buffer_length++; |
| 388 | } |
| 389 | if (verbose > 4) |
| 390 | dprintk("]\n"); |
| 391 | |
| 392 | program_info_length = 0; |
| 393 | program_info_length = (((program_info_length | p_ca_message->msg[words + 8]) & 0x0f) << 8) | p_ca_message->msg[words + 9]; |
| 394 | if (verbose > 4) |
| 395 | dprintk("%s:Program info Length=[%d][%02x], hw_offset=[%d], buf_offset=[%d] \n", |
| 396 | __FUNCTION__, program_info_length, program_info_length, hw_offset, buf_offset); |
| 397 | |
| 398 | if (program_info_length && (program_info_length < 256)) { /* If program_info_length */ |
| 399 | hw_buffer->msg[11] = hw_buffer->msg[11] & 0x0f; /* req only 4 bits */ |
| 400 | hw_buffer->msg[12] = hw_buffer->msg[12] + 1; /* increment! ASIC bug! */ |
| 401 | |
| 402 | if (p_ca_message->msg[buf_offset + 1] == 0x09) { /* Check CA descriptor */ |
| 403 | found_prog_ca_desc = 1; |
| 404 | if (verbose > 4) |
| 405 | dprintk("%s: Found CA descriptor @ Program level\n", __FUNCTION__); |
| 406 | } |
| 407 | |
| 408 | if (found_prog_ca_desc) { /* Command only if CA descriptor */ |
| 409 | hw_buffer->msg[13] = p_ca_message->msg[buf_offset]; /* CA PMT command ID */ |
| 410 | hw_offset++, buf_offset++, hw_buffer_length++; |
| 411 | } |
| 412 | |
| 413 | /* Program descriptors */ |
| 414 | if (verbose > 4) { |
| 415 | dprintk("%s:**********>buf_offset=[%d], hw_offset=[%d]\n", __FUNCTION__, buf_offset, hw_offset); |
| 416 | dprintk("%s:Program descriptors=[", __FUNCTION__); |
| 417 | } |
| 418 | while (program_info_length && !error_condition) { /* Copy prog descriptors */ |
| 419 | if (program_info_length > p_ca_message->length) { /* Error situation */ |
| 420 | dprintk ("%s:\"WARNING\" Length error, line=[%d], prog_info_length=[%d]\n", |
| 421 | __FUNCTION__, __LINE__, program_info_length); |
| 422 | dprintk("%s:\"WARNING\" Bailing out of possible loop\n", __FUNCTION__); |
| 423 | error_condition = 1; |
| 424 | break; |
| 425 | } |
| 426 | |
| 427 | hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset]; |
| 428 | dprintk(" %02x", p_ca_message->msg[buf_offset]); |
| 429 | hw_offset++, buf_offset++, hw_buffer_length++, program_info_length--; |
| 430 | } |
| 431 | if (verbose > 4) { |
| 432 | dprintk("]\n"); |
| 433 | dprintk("%s:**********>buf_offset=[%d], hw_offset=[%d]\n", __FUNCTION__, buf_offset, hw_offset); |
| 434 | } |
| 435 | if (found_prog_ca_desc) { |
| 436 | if (!reply) { |
| 437 | hw_buffer->msg[13] = 0x01; /* OK descrambling */ |
| 438 | if (verbose > 1) |
| 439 | dprintk("CA PMT Command = OK Descrambling\n"); |
| 440 | } |
| 441 | else { |
| 442 | hw_buffer->msg[13] = 0x02; /* Ok MMI */ |
| 443 | if (verbose > 1) |
| 444 | dprintk("CA PMT Command = Ok MMI\n"); |
| 445 | } |
| 446 | if (query) { |
| 447 | hw_buffer->msg[13] = 0x03; /* Query */ |
| 448 | if (verbose > 1) |
| 449 | dprintk("CA PMT Command = CA PMT query\n"); |
| 450 | } |
| 451 | } |
| 452 | } |
| 453 | else { |
| 454 | hw_buffer->msg[11] = hw_buffer->msg[11] & 0xf0; /* Don't write to ASIC */ |
| 455 | hw_buffer->msg[12] = hw_buffer->msg[12] = 0x00; |
| 456 | } |
| 457 | if (verbose > 4) |
| 458 | dprintk("%s:**********>p_ca_message->length=[%d], buf_offset=[%d], hw_offset=[%d]\n", |
| 459 | __FUNCTION__, p_ca_message->length, buf_offset, hw_offset); |
| 460 | |
| 461 | while ((buf_offset < p_ca_message->length) && !error_condition) { |
| 462 | /* Bail out in case of an indefinite loop */ |
| 463 | if ((es_info_length > p_ca_message->length) || (buf_offset > p_ca_message->length)) { |
| 464 | dprintk("%s:\"WARNING\" Length error, line=[%d], prog_info_length=[%d], buf_offset=[%d]\n", |
| 465 | __FUNCTION__, __LINE__, program_info_length, buf_offset); |
| 466 | |
| 467 | dprintk("%s:\"WARNING\" Bailing out of possible loop\n", __FUNCTION__); |
| 468 | error_condition = 1; |
| 469 | break; |
| 470 | } |
| 471 | |
| 472 | /* Stream Header */ |
| 473 | |
| 474 | for (k = 0; k < 5; k++) { |
| 475 | hw_buffer->msg[hw_offset + k] = p_ca_message->msg[buf_offset + k]; |
| 476 | } |
| 477 | |
| 478 | es_info_length = 0; |
| 479 | es_info_length = (es_info_length | (p_ca_message->msg[buf_offset + 3] & 0x0f)) << 8 | p_ca_message->msg[buf_offset + 4]; |
| 480 | |
| 481 | if (verbose > 4) { |
| 482 | dprintk("\n%s:----->Stream header=[%02x %02x %02x %02x %02x]\n", __FUNCTION__, |
| 483 | p_ca_message->msg[buf_offset + 0], p_ca_message->msg[buf_offset + 1], |
| 484 | p_ca_message->msg[buf_offset + 2], p_ca_message->msg[buf_offset + 3], |
| 485 | p_ca_message->msg[buf_offset + 4]); |
| 486 | |
| 487 | dprintk("%s:----->Stream type=[%02x], es length=[%d (0x%x)], Chars=[%02x] [%02x], buf_offset=[%d]\n", __FUNCTION__, |
| 488 | p_ca_message->msg[buf_offset + 0], es_info_length, es_info_length, |
| 489 | p_ca_message->msg[buf_offset + 3], p_ca_message->msg[buf_offset + 4], buf_offset); |
| 490 | } |
| 491 | |
| 492 | hw_buffer->msg[hw_offset + 3] &= 0x0f; /* req only 4 bits */ |
| 493 | |
| 494 | if (found_prog_ca_desc) { |
| 495 | hw_buffer->msg[hw_offset + 3] = 0x00; |
| 496 | hw_buffer->msg[hw_offset + 4] = 0x00; |
| 497 | } |
| 498 | |
| 499 | hw_offset += 5, buf_offset += 5, hw_buffer_length += 5; |
| 500 | |
| 501 | /* Check for CA descriptor */ |
| 502 | if (p_ca_message->msg[buf_offset + 1] == 0x09) { |
| 503 | if (verbose > 4) |
| 504 | dprintk("%s:Found CA descriptor @ Stream level\n", __FUNCTION__); |
| 505 | found_stream_ca_desc = 1; |
| 506 | } |
| 507 | |
| 508 | /* ES descriptors */ |
| 509 | |
| 510 | if (es_info_length && !error_condition && !found_prog_ca_desc && found_stream_ca_desc) { |
| 511 | // if (!ca_pmt_done) { |
| 512 | hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset]; /* CA PMT cmd(es) */ |
| 513 | if (verbose > 4) |
| 514 | printk("%s:----->CA PMT Command ID=[%02x]\n", __FUNCTION__, p_ca_message->msg[buf_offset]); |
| 515 | // hw_offset++, buf_offset++, hw_buffer_length++, es_info_length--, ca_pmt_done = 1; |
| 516 | hw_offset++, buf_offset++, hw_buffer_length++, es_info_length--; |
| 517 | // } |
| 518 | if (verbose > 4) |
| 519 | dprintk("%s:----->ES descriptors=[", __FUNCTION__); |
| 520 | |
| 521 | while (es_info_length && !error_condition) { /* ES descriptors */ |
| 522 | if ((es_info_length > p_ca_message->length) || (buf_offset > p_ca_message->length)) { |
| 523 | if (verbose > 4) { |
| 524 | dprintk("%s:\"WARNING\" ES Length error, line=[%d], es_info_length=[%d], buf_offset=[%d]\n", |
| 525 | __FUNCTION__, __LINE__, es_info_length, buf_offset); |
| 526 | |
| 527 | dprintk("%s:\"WARNING\" Bailing out of possible loop\n", __FUNCTION__); |
| 528 | } |
| 529 | error_condition = 1; |
| 530 | break; |
| 531 | } |
| 532 | |
| 533 | hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset]; |
| 534 | if (verbose > 3) |
| 535 | dprintk("%02x ", hw_buffer->msg[hw_offset]); |
| 536 | hw_offset++, buf_offset++, hw_buffer_length++, es_info_length--; |
| 537 | } |
| 538 | found_stream_ca_desc = 0; /* unset for new streams */ |
| 539 | dprintk("]\n"); |
| 540 | } |
| 541 | } |
| 542 | |
| 543 | /* MCU Magic words */ |
| 544 | |
| 545 | hw_buffer_length += 7; |
| 546 | hw_buffer->msg[0] = hw_buffer_length; |
| 547 | hw_buffer->msg[1] = 64; |
| 548 | hw_buffer->msg[4] = 3; |
| 549 | hw_buffer->msg[5] = hw_buffer->msg[0] - 7; |
| 550 | hw_buffer->msg[6] = 0; |
| 551 | |
| 552 | |
| 553 | /* Fix length */ |
| 554 | hw_buffer->length = hw_buffer->msg[0]; |
| 555 | |
| 556 | put_checksum(&hw_buffer->msg[0], hw_buffer->msg[0]); |
| 557 | /* Do the actual write */ |
| 558 | if (verbose > 4) { |
| 559 | dprintk("%s:======================DEBUGGING================================\n", __FUNCTION__); |
| 560 | dprintk("%s: Actual Length=[%d]\n", __FUNCTION__, hw_buffer_length); |
| 561 | } |
| 562 | /* Only for debugging! */ |
| 563 | if (verbose > 2) |
| 564 | debug_8820_buffer(hw_buffer); |
| 565 | if (verbose > 3) |
| 566 | dprintk("%s: Reply = [%d]\n", __FUNCTION__, reply); |
| 567 | write_to_8820(state, hw_buffer, reply); |
| 568 | |
| 569 | return 0; |
| 570 | } |
| 571 | |
| 572 | /* Board supports CA PMT reply ? */ |
| 573 | static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer) |
| 574 | { |
| 575 | int ca_pmt_reply_test = 0; |
| 576 | |
| 577 | /* Do test board */ |
| 578 | /* Not there yet but soon */ |
| 579 | |
| 580 | |
| 581 | /* CA PMT Reply capable */ |
| 582 | if (ca_pmt_reply_test) { |
| 583 | if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) { |
| 584 | dprintk("%s: ca_set_pmt.. failed !\n", __FUNCTION__); |
| 585 | return -1; |
| 586 | } |
| 587 | |
| 588 | /* Process CA PMT Reply */ |
| 589 | /* will implement soon */ |
| 590 | dprintk("%s: Not there yet\n", __FUNCTION__); |
| 591 | } |
| 592 | /* CA PMT Reply not capable */ |
| 593 | if (!ca_pmt_reply_test) { |
| 594 | if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) { |
| 595 | dprintk("%s: ca_set_pmt.. failed !\n", __FUNCTION__); |
| 596 | return -1; |
| 597 | } |
| 598 | if (verbose > 3) |
| 599 | dprintk("%s: ca_set_pmt.. success !\n", __FUNCTION__); |
| 600 | /* put a dummy message */ |
| 601 | |
| 602 | } |
| 603 | return 0; |
| 604 | } |
| 605 | |
| 606 | static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void *arg) |
| 607 | { |
| 608 | int i = 0; |
| 609 | unsigned int ca_message_header_len; |
| 610 | |
| 611 | u32 command = 0; |
| 612 | struct ca_msg *hw_buffer; |
| 613 | |
| 614 | if ((hw_buffer = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) { |
| 615 | printk("%s: Memory allocation failure\n", __FUNCTION__); |
| 616 | return -ENOMEM; |
| 617 | } |
| 618 | if (verbose > 3) |
| 619 | dprintk("%s\n", __FUNCTION__); |
| 620 | |
| 621 | if (copy_from_user(p_ca_message, (void *)arg, sizeof (struct ca_msg))) |
| 622 | return -EFAULT; |
| 623 | |
| 624 | if (p_ca_message->msg) { |
| 625 | ca_message_header_len = p_ca_message->length; /* Restore it back when you are done */ |
| 626 | /* EN50221 tag */ |
| 627 | command = 0; |
| 628 | |
| 629 | for (i = 0; i < 3; i++) { |
| 630 | command = command | p_ca_message->msg[i]; |
| 631 | if (i < 2) |
| 632 | command = command << 8; |
| 633 | } |
| 634 | if (verbose > 3) |
| 635 | dprintk("%s:Command=[0x%x]\n", __FUNCTION__, command); |
| 636 | |
| 637 | switch (command) { |
| 638 | case CA_PMT: |
| 639 | if (verbose > 3) |
| 640 | dprintk("Command = SEND_CA_PMT\n"); |
| 641 | if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) { |
| 642 | dprintk("%s: -->CA_PMT Failed !\n", __FUNCTION__); |
| 643 | return -1; |
| 644 | } |
| 645 | if (verbose > 3) |
| 646 | dprintk("%s: -->CA_PMT Success !\n", __FUNCTION__); |
| 647 | // retval = dummy_set_pmt(state, p_ca_message, hw_buffer, 0, 0); |
| 648 | |
| 649 | break; |
| 650 | |
| 651 | case CA_PMT_REPLY: |
| 652 | if (verbose > 3) |
| 653 | dprintk("Command = CA_PMT_REPLY\n"); |
| 654 | /* Have to handle the 2 basic types of cards here */ |
| 655 | if ((dst_check_ca_pmt(state, p_ca_message, hw_buffer)) < 0) { |
| 656 | dprintk("%s: -->CA_PMT_REPLY Failed !\n", __FUNCTION__); |
| 657 | return -1; |
| 658 | } |
| 659 | if (verbose > 3) |
| 660 | dprintk("%s: -->CA_PMT_REPLY Success !\n", __FUNCTION__); |
| 661 | |
| 662 | /* Certain boards do behave different ? */ |
| 663 | // retval = ca_set_pmt(state, p_ca_message, hw_buffer, 1, 1); |
| 664 | |
| 665 | case CA_APP_INFO_ENQUIRY: // only for debugging |
| 666 | if (verbose > 3) |
| 667 | dprintk("%s: Getting Cam Application information\n", __FUNCTION__); |
| 668 | |
| 669 | if ((ca_get_app_info(state)) < 0) { |
| 670 | dprintk("%s: -->CA_APP_INFO_ENQUIRY Failed !\n", __FUNCTION__); |
| 671 | return -1; |
| 672 | } |
| 673 | if (verbose > 3) |
| 674 | printk("%s: -->CA_APP_INFO_ENQUIRY Success !\n", __FUNCTION__); |
| 675 | |
| 676 | break; |
| 677 | } |
| 678 | } |
| 679 | return 0; |
| 680 | } |
| 681 | |
| 682 | static int dst_ca_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg) |
| 683 | { |
| 684 | struct dvb_device* dvbdev = (struct dvb_device*) file->private_data; |
| 685 | struct dst_state* state = (struct dst_state*) dvbdev->priv; |
| 686 | struct ca_slot_info *p_ca_slot_info; |
| 687 | struct ca_caps *p_ca_caps; |
| 688 | struct ca_msg *p_ca_message; |
| 689 | |
| 690 | if ((p_ca_message = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) { |
| 691 | printk("%s: Memory allocation failure\n", __FUNCTION__); |
| 692 | return -ENOMEM; |
| 693 | } |
| 694 | |
| 695 | if ((p_ca_slot_info = (struct ca_slot_info *) kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL)) == NULL) { |
| 696 | printk("%s: Memory allocation failure\n", __FUNCTION__); |
| 697 | return -ENOMEM; |
| 698 | } |
| 699 | |
| 700 | if ((p_ca_caps = (struct ca_caps *) kmalloc(sizeof (struct ca_caps), GFP_KERNEL)) == NULL) { |
| 701 | printk("%s: Memory allocation failure\n", __FUNCTION__); |
| 702 | return -ENOMEM; |
| 703 | } |
| 704 | |
| 705 | /* We have now only the standard ioctl's, the driver is upposed to handle internals. */ |
| 706 | switch (cmd) { |
| 707 | case CA_SEND_MSG: |
| 708 | if (verbose > 1) |
| 709 | dprintk("%s: Sending message\n", __FUNCTION__); |
| 710 | if ((ca_send_message(state, p_ca_message, arg)) < 0) { |
| 711 | dprintk("%s: -->CA_SEND_MSG Failed !\n", __FUNCTION__); |
| 712 | return -1; |
| 713 | } |
| 714 | |
| 715 | break; |
| 716 | |
| 717 | case CA_GET_MSG: |
| 718 | if (verbose > 1) |
| 719 | dprintk("%s: Getting message\n", __FUNCTION__); |
| 720 | if ((ca_get_message(state, p_ca_message, arg)) < 0) { |
| 721 | dprintk("%s: -->CA_GET_MSG Failed !\n", __FUNCTION__); |
| 722 | return -1; |
| 723 | } |
| 724 | if (verbose > 1) |
| 725 | dprintk("%s: -->CA_GET_MSG Success !\n", __FUNCTION__); |
| 726 | |
| 727 | break; |
| 728 | |
| 729 | case CA_RESET: |
| 730 | if (verbose > 1) |
| 731 | dprintk("%s: Resetting DST\n", __FUNCTION__); |
| 732 | dst_error_bailout(state); |
| 733 | msleep(4000); |
| 734 | |
| 735 | break; |
| 736 | |
| 737 | case CA_GET_SLOT_INFO: |
| 738 | if (verbose > 1) |
| 739 | dprintk("%s: Getting Slot info\n", __FUNCTION__); |
| 740 | if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) { |
| 741 | dprintk("%s: -->CA_GET_SLOT_INFO Failed !\n", __FUNCTION__); |
| 742 | return -1; |
| 743 | } |
| 744 | if (verbose > 1) |
| 745 | dprintk("%s: -->CA_GET_SLOT_INFO Success !\n", __FUNCTION__); |
| 746 | |
| 747 | break; |
| 748 | |
| 749 | case CA_GET_CAP: |
| 750 | if (verbose > 1) |
| 751 | dprintk("%s: Getting Slot capabilities\n", __FUNCTION__); |
| 752 | if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) { |
| 753 | dprintk("%s: -->CA_GET_CAP Failed !\n", __FUNCTION__); |
| 754 | return -1; |
| 755 | } |
| 756 | if (verbose > 1) |
| 757 | dprintk("%s: -->CA_GET_CAP Success !\n", __FUNCTION__); |
| 758 | |
| 759 | break; |
| 760 | |
| 761 | case CA_GET_DESCR_INFO: |
| 762 | if (verbose > 1) |
| 763 | dprintk("%s: Getting descrambler description\n", __FUNCTION__); |
| 764 | if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) { |
| 765 | dprintk("%s: -->CA_GET_DESCR_INFO Failed !\n", __FUNCTION__); |
| 766 | return -1; |
| 767 | } |
| 768 | if (verbose > 1) |
| 769 | dprintk("%s: -->CA_GET_DESCR_INFO Success !\n", __FUNCTION__); |
| 770 | |
| 771 | break; |
| 772 | |
| 773 | case CA_SET_DESCR: |
| 774 | if (verbose > 1) |
| 775 | dprintk("%s: Setting descrambler\n", __FUNCTION__); |
| 776 | if ((ca_set_slot_descr()) < 0) { |
| 777 | dprintk("%s: -->CA_SET_DESCR Failed !\n", __FUNCTION__); |
| 778 | return -1; |
| 779 | } |
| 780 | if (verbose > 1) |
| 781 | dprintk("%s: -->CA_SET_DESCR Success !\n", __FUNCTION__); |
| 782 | |
| 783 | break; |
| 784 | |
| 785 | case CA_SET_PID: |
| 786 | if (verbose > 1) |
| 787 | dprintk("%s: Setting PID\n", __FUNCTION__); |
| 788 | if ((ca_set_pid()) < 0) { |
| 789 | dprintk("%s: -->CA_SET_PID Failed !\n", __FUNCTION__); |
| 790 | return -1; |
| 791 | } |
| 792 | if (verbose > 1) |
| 793 | dprintk("%s: -->CA_SET_PID Success !\n", __FUNCTION__); |
| 794 | |
| 795 | default: |
| 796 | return -EOPNOTSUPP; |
| 797 | }; |
| 798 | |
| 799 | return 0; |
| 800 | } |
| 801 | |
| 802 | static int dst_ca_open(struct inode *inode, struct file *file) |
| 803 | { |
| 804 | if (verbose > 4) |
| 805 | dprintk("%s:Device opened [%p]\n", __FUNCTION__, file); |
| 806 | try_module_get(THIS_MODULE); |
| 807 | |
| 808 | return 0; |
| 809 | } |
| 810 | |
| 811 | static int dst_ca_release(struct inode *inode, struct file *file) |
| 812 | { |
| 813 | if (verbose > 4) |
| 814 | dprintk("%s:Device closed.\n", __FUNCTION__); |
| 815 | module_put(THIS_MODULE); |
| 816 | |
| 817 | return 0; |
| 818 | } |
| 819 | |
| 820 | static int dst_ca_read(struct file *file, char __user * buffer, size_t length, loff_t * offset) |
| 821 | { |
| 822 | int bytes_read = 0; |
| 823 | |
| 824 | if (verbose > 4) |
| 825 | dprintk("%s:Device read.\n", __FUNCTION__); |
| 826 | |
| 827 | return bytes_read; |
| 828 | } |
| 829 | |
| 830 | static int dst_ca_write(struct file *file, const char __user * buffer, size_t length, loff_t * offset) |
| 831 | { |
| 832 | if (verbose > 4) |
| 833 | dprintk("%s:Device write.\n", __FUNCTION__); |
| 834 | |
| 835 | return 0; |
| 836 | } |
| 837 | |
| 838 | static struct file_operations dst_ca_fops = { |
| 839 | .owner = THIS_MODULE, |
| 840 | .ioctl = (void *)dst_ca_ioctl, |
| 841 | .open = dst_ca_open, |
| 842 | .release = dst_ca_release, |
| 843 | .read = dst_ca_read, |
| 844 | .write = dst_ca_write |
| 845 | }; |
| 846 | |
| 847 | static struct dvb_device dvbdev_ca = { |
| 848 | .priv = NULL, |
| 849 | .users = 1, |
| 850 | .readers = 1, |
| 851 | .writers = 1, |
| 852 | .fops = &dst_ca_fops |
| 853 | }; |
| 854 | |
| 855 | int dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_adapter) |
| 856 | { |
| 857 | struct dvb_device *dvbdev; |
| 858 | if (verbose > 4) |
| 859 | dprintk("%s:registering DST-CA device\n", __FUNCTION__); |
| 860 | dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, DVB_DEVICE_CA); |
| 861 | return 0; |
| 862 | } |
| 863 | |
| 864 | EXPORT_SYMBOL(dst_ca_attach); |
| 865 | |
| 866 | MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver"); |
| 867 | MODULE_AUTHOR("Manu Abraham"); |
| 868 | MODULE_LICENSE("GPL"); |