root/drivers/media/firewire/firedtv-avc.c

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DEFINITIONS

This source file includes following definitions.
  1. clear_operands
  2. pad_operands
  3. debug_fcp_ctype
  4. debug_fcp_opcode
  5. debug_fcp
  6. debug_pmt
  7. avc_write
  8. is_register_rc
  9. avc_recv
  10. add_pid_filter
  11. avc_tuner_tuneqpsk
  12. avc_tuner_dsd_dvb_c
  13. avc_tuner_dsd_dvb_t
  14. avc_tuner_dsd
  15. avc_tuner_set_pids
  16. avc_tuner_get_ts
  17. avc_identify_subunit
  18. avc_tuner_status
  19. avc_lnb_control
  20. avc_register_remote_control
  21. avc_remote_ctrl_work
  22. avc_tuner_host2ca
  23. get_ca_object_pos
  24. get_ca_object_length
  25. avc_ca_app_info
  26. avc_ca_info
  27. avc_ca_reset
  28. avc_ca_pmt
  29. avc_ca_get_time_date
  30. avc_ca_enter_menu
  31. avc_ca_get_mmi
  32. cmp_read
  33. cmp_lock
  34. get_opcr
  35. set_opcr
  36. cmp_establish_pp_connection
  37. cmp_break_pp_connection

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * FireDTV driver (formerly known as FireSAT)
   4  *
   5  * Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
   6  * Copyright (C) 2008 Ben Backx <ben@bbackx.com>
   7  * Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se>
   8  */
   9 
  10 #include <linux/bug.h>
  11 #include <linux/crc32.h>
  12 #include <linux/delay.h>
  13 #include <linux/device.h>
  14 #include <linux/jiffies.h>
  15 #include <linux/kernel.h>
  16 #include <linux/moduleparam.h>
  17 #include <linux/mutex.h>
  18 #include <linux/string.h>
  19 #include <linux/stringify.h>
  20 #include <linux/wait.h>
  21 #include <linux/workqueue.h>
  22 
  23 #include <media/dvb_frontend.h>
  24 
  25 #include "firedtv.h"
  26 
  27 #define FCP_COMMAND_REGISTER            0xfffff0000b00ULL
  28 
  29 #define AVC_CTYPE_CONTROL               0x0
  30 #define AVC_CTYPE_STATUS                0x1
  31 #define AVC_CTYPE_NOTIFY                0x3
  32 
  33 #define AVC_RESPONSE_ACCEPTED           0x9
  34 #define AVC_RESPONSE_STABLE             0xc
  35 #define AVC_RESPONSE_CHANGED            0xd
  36 #define AVC_RESPONSE_INTERIM            0xf
  37 
  38 #define AVC_SUBUNIT_TYPE_TUNER          (0x05 << 3)
  39 #define AVC_SUBUNIT_TYPE_UNIT           (0x1f << 3)
  40 
  41 #define AVC_OPCODE_VENDOR               0x00
  42 #define AVC_OPCODE_READ_DESCRIPTOR      0x09
  43 #define AVC_OPCODE_DSIT                 0xc8
  44 #define AVC_OPCODE_DSD                  0xcb
  45 
  46 #define DESCRIPTOR_TUNER_STATUS         0x80
  47 #define DESCRIPTOR_SUBUNIT_IDENTIFIER   0x00
  48 
  49 #define SFE_VENDOR_DE_COMPANYID_0       0x00 /* OUI of Digital Everywhere */
  50 #define SFE_VENDOR_DE_COMPANYID_1       0x12
  51 #define SFE_VENDOR_DE_COMPANYID_2       0x87
  52 
  53 #define SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL 0x0a
  54 #define SFE_VENDOR_OPCODE_LNB_CONTROL           0x52
  55 #define SFE_VENDOR_OPCODE_TUNE_QPSK             0x58 /* for DVB-S */
  56 
  57 #define SFE_VENDOR_OPCODE_GET_FIRMWARE_VERSION  0x00
  58 #define SFE_VENDOR_OPCODE_HOST2CA               0x56
  59 #define SFE_VENDOR_OPCODE_CA2HOST               0x57
  60 #define SFE_VENDOR_OPCODE_CISTATUS              0x59
  61 #define SFE_VENDOR_OPCODE_TUNE_QPSK2            0x60 /* for DVB-S2 */
  62 
  63 #define SFE_VENDOR_TAG_CA_RESET                 0x00
  64 #define SFE_VENDOR_TAG_CA_APPLICATION_INFO      0x01
  65 #define SFE_VENDOR_TAG_CA_PMT                   0x02
  66 #define SFE_VENDOR_TAG_CA_DATE_TIME             0x04
  67 #define SFE_VENDOR_TAG_CA_MMI                   0x05
  68 #define SFE_VENDOR_TAG_CA_ENTER_MENU            0x07
  69 
  70 #define EN50221_LIST_MANAGEMENT_ONLY    0x03
  71 #define EN50221_TAG_APP_INFO            0x9f8021
  72 #define EN50221_TAG_CA_INFO             0x9f8031
  73 
  74 struct avc_command_frame {
  75         u8 ctype;
  76         u8 subunit;
  77         u8 opcode;
  78         u8 operand[509];
  79 };
  80 
  81 struct avc_response_frame {
  82         u8 response;
  83         u8 subunit;
  84         u8 opcode;
  85         u8 operand[509];
  86 };
  87 
  88 #define LAST_OPERAND (509 - 1)
  89 
  90 static inline void clear_operands(struct avc_command_frame *c, int from, int to)
  91 {
  92         memset(&c->operand[from], 0, to - from + 1);
  93 }
  94 
  95 static void pad_operands(struct avc_command_frame *c, int from)
  96 {
  97         int to = ALIGN(from, 4);
  98 
  99         if (from <= to && to <= LAST_OPERAND)
 100                 clear_operands(c, from, to);
 101 }
 102 
 103 #define AVC_DEBUG_READ_DESCRIPTOR              0x0001
 104 #define AVC_DEBUG_DSIT                         0x0002
 105 #define AVC_DEBUG_DSD                          0x0004
 106 #define AVC_DEBUG_REGISTER_REMOTE_CONTROL      0x0008
 107 #define AVC_DEBUG_LNB_CONTROL                  0x0010
 108 #define AVC_DEBUG_TUNE_QPSK                    0x0020
 109 #define AVC_DEBUG_TUNE_QPSK2                   0x0040
 110 #define AVC_DEBUG_HOST2CA                      0x0080
 111 #define AVC_DEBUG_CA2HOST                      0x0100
 112 #define AVC_DEBUG_APPLICATION_PMT              0x4000
 113 #define AVC_DEBUG_FCP_PAYLOADS                 0x8000
 114 
 115 static int avc_debug;
 116 module_param_named(debug, avc_debug, int, 0644);
 117 MODULE_PARM_DESC(debug, "Verbose logging (none = 0"
 118         ", FCP subactions"
 119         ": READ DESCRIPTOR = "          __stringify(AVC_DEBUG_READ_DESCRIPTOR)
 120         ", DSIT = "                     __stringify(AVC_DEBUG_DSIT)
 121         ", REGISTER_REMOTE_CONTROL = "  __stringify(AVC_DEBUG_REGISTER_REMOTE_CONTROL)
 122         ", LNB CONTROL = "              __stringify(AVC_DEBUG_LNB_CONTROL)
 123         ", TUNE QPSK = "                __stringify(AVC_DEBUG_TUNE_QPSK)
 124         ", TUNE QPSK2 = "               __stringify(AVC_DEBUG_TUNE_QPSK2)
 125         ", HOST2CA = "                  __stringify(AVC_DEBUG_HOST2CA)
 126         ", CA2HOST = "                  __stringify(AVC_DEBUG_CA2HOST)
 127         "; Application sent PMT = "     __stringify(AVC_DEBUG_APPLICATION_PMT)
 128         ", FCP payloads = "             __stringify(AVC_DEBUG_FCP_PAYLOADS)
 129         ", or a combination, or all = -1)");
 130 
 131 /*
 132  * This is a workaround since there is no vendor specific command to retrieve
 133  * ca_info using AVC. If this parameter is not used, ca_system_id will be
 134  * filled with application_manufacturer from ca_app_info.
 135  * Digital Everywhere have said that adding ca_info is on their TODO list.
 136  */
 137 static unsigned int num_fake_ca_system_ids;
 138 static int fake_ca_system_ids[4] = { -1, -1, -1, -1 };
 139 module_param_array(fake_ca_system_ids, int, &num_fake_ca_system_ids, 0644);
 140 MODULE_PARM_DESC(fake_ca_system_ids, "If your CAM application manufacturer "
 141                  "does not have the same ca_system_id as your CAS, you can "
 142                  "override what ca_system_ids are presented to the "
 143                  "application by setting this field to an array of ids.");
 144 
 145 static const char *debug_fcp_ctype(unsigned int ctype)
 146 {
 147         static const char *ctypes[] = {
 148                 [0x0] = "CONTROL",              [0x1] = "STATUS",
 149                 [0x2] = "SPECIFIC INQUIRY",     [0x3] = "NOTIFY",
 150                 [0x4] = "GENERAL INQUIRY",      [0x8] = "NOT IMPLEMENTED",
 151                 [0x9] = "ACCEPTED",             [0xa] = "REJECTED",
 152                 [0xb] = "IN TRANSITION",        [0xc] = "IMPLEMENTED/STABLE",
 153                 [0xd] = "CHANGED",              [0xf] = "INTERIM",
 154         };
 155         const char *ret = ctype < ARRAY_SIZE(ctypes) ? ctypes[ctype] : NULL;
 156 
 157         return ret ? ret : "?";
 158 }
 159 
 160 static const char *debug_fcp_opcode(unsigned int opcode,
 161                                     const u8 *data, int length)
 162 {
 163         switch (opcode) {
 164         case AVC_OPCODE_VENDOR:
 165                 break;
 166         case AVC_OPCODE_READ_DESCRIPTOR:
 167                 return avc_debug & AVC_DEBUG_READ_DESCRIPTOR ?
 168                                 "ReadDescriptor" : NULL;
 169         case AVC_OPCODE_DSIT:
 170                 return avc_debug & AVC_DEBUG_DSIT ?
 171                                 "DirectSelectInfo.Type" : NULL;
 172         case AVC_OPCODE_DSD:
 173                 return avc_debug & AVC_DEBUG_DSD ? "DirectSelectData" : NULL;
 174         default:
 175                 return "Unknown";
 176         }
 177 
 178         if (length < 7 ||
 179             data[3] != SFE_VENDOR_DE_COMPANYID_0 ||
 180             data[4] != SFE_VENDOR_DE_COMPANYID_1 ||
 181             data[5] != SFE_VENDOR_DE_COMPANYID_2)
 182                 return "Vendor/Unknown";
 183 
 184         switch (data[6]) {
 185         case SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL:
 186                 return avc_debug & AVC_DEBUG_REGISTER_REMOTE_CONTROL ?
 187                                 "RegisterRC" : NULL;
 188         case SFE_VENDOR_OPCODE_LNB_CONTROL:
 189                 return avc_debug & AVC_DEBUG_LNB_CONTROL ? "LNBControl" : NULL;
 190         case SFE_VENDOR_OPCODE_TUNE_QPSK:
 191                 return avc_debug & AVC_DEBUG_TUNE_QPSK ? "TuneQPSK" : NULL;
 192         case SFE_VENDOR_OPCODE_TUNE_QPSK2:
 193                 return avc_debug & AVC_DEBUG_TUNE_QPSK2 ? "TuneQPSK2" : NULL;
 194         case SFE_VENDOR_OPCODE_HOST2CA:
 195                 return avc_debug & AVC_DEBUG_HOST2CA ? "Host2CA" : NULL;
 196         case SFE_VENDOR_OPCODE_CA2HOST:
 197                 return avc_debug & AVC_DEBUG_CA2HOST ? "CA2Host" : NULL;
 198         }
 199         return "Vendor/Unknown";
 200 }
 201 
 202 static void debug_fcp(const u8 *data, int length)
 203 {
 204         unsigned int subunit_type, subunit_id, opcode;
 205         const char *op, *prefix;
 206 
 207         prefix       = data[0] > 7 ? "FCP <- " : "FCP -> ";
 208         subunit_type = data[1] >> 3;
 209         subunit_id   = data[1] & 7;
 210         opcode       = subunit_type == 0x1e || subunit_id == 5 ? ~0 : data[2];
 211         op           = debug_fcp_opcode(opcode, data, length);
 212 
 213         if (op) {
 214                 printk(KERN_INFO "%ssu=%x.%x l=%d: %-8s - %s\n",
 215                        prefix, subunit_type, subunit_id, length,
 216                        debug_fcp_ctype(data[0]), op);
 217                 if (avc_debug & AVC_DEBUG_FCP_PAYLOADS)
 218                         print_hex_dump(KERN_INFO, prefix, DUMP_PREFIX_NONE,
 219                                        16, 1, data, length, false);
 220         }
 221 }
 222 
 223 static void debug_pmt(char *msg, int length)
 224 {
 225         printk(KERN_INFO "APP PMT -> l=%d\n", length);
 226         print_hex_dump(KERN_INFO, "APP PMT -> ", DUMP_PREFIX_NONE,
 227                        16, 1, msg, length, false);
 228 }
 229 
 230 static int avc_write(struct firedtv *fdtv)
 231 {
 232         int err, retry;
 233 
 234         fdtv->avc_reply_received = false;
 235 
 236         for (retry = 0; retry < 6; retry++) {
 237                 if (unlikely(avc_debug))
 238                         debug_fcp(fdtv->avc_data, fdtv->avc_data_length);
 239 
 240                 err = fdtv_write(fdtv, FCP_COMMAND_REGISTER,
 241                                  fdtv->avc_data, fdtv->avc_data_length);
 242                 if (err) {
 243                         dev_err(fdtv->device, "FCP command write failed\n");
 244 
 245                         return err;
 246                 }
 247 
 248                 /*
 249                  * AV/C specs say that answers should be sent within 150 ms.
 250                  * Time out after 200 ms.
 251                  */
 252                 if (wait_event_timeout(fdtv->avc_wait,
 253                                        fdtv->avc_reply_received,
 254                                        msecs_to_jiffies(200)) != 0)
 255                         return 0;
 256         }
 257         dev_err(fdtv->device, "FCP response timed out\n");
 258 
 259         return -ETIMEDOUT;
 260 }
 261 
 262 static bool is_register_rc(struct avc_response_frame *r)
 263 {
 264         return r->opcode     == AVC_OPCODE_VENDOR &&
 265                r->operand[0] == SFE_VENDOR_DE_COMPANYID_0 &&
 266                r->operand[1] == SFE_VENDOR_DE_COMPANYID_1 &&
 267                r->operand[2] == SFE_VENDOR_DE_COMPANYID_2 &&
 268                r->operand[3] == SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL;
 269 }
 270 
 271 int avc_recv(struct firedtv *fdtv, void *data, size_t length)
 272 {
 273         struct avc_response_frame *r = data;
 274 
 275         if (unlikely(avc_debug))
 276                 debug_fcp(data, length);
 277 
 278         if (length >= 8 && is_register_rc(r)) {
 279                 switch (r->response) {
 280                 case AVC_RESPONSE_CHANGED:
 281                         fdtv_handle_rc(fdtv, r->operand[4] << 8 | r->operand[5]);
 282                         schedule_work(&fdtv->remote_ctrl_work);
 283                         break;
 284                 case AVC_RESPONSE_INTERIM:
 285                         if (is_register_rc((void *)fdtv->avc_data))
 286                                 goto wake;
 287                         break;
 288                 default:
 289                         dev_info(fdtv->device,
 290                                  "remote control result = %d\n", r->response);
 291                 }
 292                 return 0;
 293         }
 294 
 295         if (fdtv->avc_reply_received) {
 296                 dev_err(fdtv->device, "out-of-order AVC response, ignored\n");
 297                 return -EIO;
 298         }
 299 
 300         memcpy(fdtv->avc_data, data, length);
 301         fdtv->avc_data_length = length;
 302 wake:
 303         fdtv->avc_reply_received = true;
 304         wake_up(&fdtv->avc_wait);
 305 
 306         return 0;
 307 }
 308 
 309 static int add_pid_filter(struct firedtv *fdtv, u8 *operand)
 310 {
 311         int i, n, pos = 1;
 312 
 313         for (i = 0, n = 0; i < 16; i++) {
 314                 if (test_bit(i, &fdtv->channel_active)) {
 315                         operand[pos++] = 0x13; /* flowfunction relay */
 316                         operand[pos++] = 0x80; /* dsd_sel_spec_valid_flags -> PID */
 317                         operand[pos++] = (fdtv->channel_pid[i] >> 8) & 0x1f;
 318                         operand[pos++] = fdtv->channel_pid[i] & 0xff;
 319                         operand[pos++] = 0x00; /* tableID */
 320                         operand[pos++] = 0x00; /* filter_length */
 321                         n++;
 322                 }
 323         }
 324         operand[0] = n;
 325 
 326         return pos;
 327 }
 328 
 329 /*
 330  * tuning command for setting the relative LNB frequency
 331  * (not supported by the AVC standard)
 332  */
 333 static int avc_tuner_tuneqpsk(struct firedtv *fdtv,
 334                               struct dtv_frontend_properties *p)
 335 {
 336         struct avc_command_frame *c = (void *)fdtv->avc_data;
 337 
 338         c->opcode = AVC_OPCODE_VENDOR;
 339 
 340         c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
 341         c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
 342         c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
 343         if (fdtv->type == FIREDTV_DVB_S2)
 344                 c->operand[3] = SFE_VENDOR_OPCODE_TUNE_QPSK2;
 345         else
 346                 c->operand[3] = SFE_VENDOR_OPCODE_TUNE_QPSK;
 347 
 348         c->operand[4] = (p->frequency >> 24) & 0xff;
 349         c->operand[5] = (p->frequency >> 16) & 0xff;
 350         c->operand[6] = (p->frequency >> 8) & 0xff;
 351         c->operand[7] = p->frequency & 0xff;
 352 
 353         c->operand[8] = ((p->symbol_rate / 1000) >> 8) & 0xff;
 354         c->operand[9] = (p->symbol_rate / 1000) & 0xff;
 355 
 356         switch (p->fec_inner) {
 357         case FEC_1_2:   c->operand[10] = 0x1; break;
 358         case FEC_2_3:   c->operand[10] = 0x2; break;
 359         case FEC_3_4:   c->operand[10] = 0x3; break;
 360         case FEC_5_6:   c->operand[10] = 0x4; break;
 361         case FEC_7_8:   c->operand[10] = 0x5; break;
 362         case FEC_4_5:
 363         case FEC_8_9:
 364         case FEC_AUTO:
 365         default:        c->operand[10] = 0x0;
 366         }
 367 
 368         if (fdtv->voltage == 0xff)
 369                 c->operand[11] = 0xff;
 370         else if (fdtv->voltage == SEC_VOLTAGE_18) /* polarisation */
 371                 c->operand[11] = 0;
 372         else
 373                 c->operand[11] = 1;
 374 
 375         if (fdtv->tone == 0xff)
 376                 c->operand[12] = 0xff;
 377         else if (fdtv->tone == SEC_TONE_ON) /* band */
 378                 c->operand[12] = 1;
 379         else
 380                 c->operand[12] = 0;
 381 
 382         if (fdtv->type == FIREDTV_DVB_S2) {
 383                 if (fdtv->fe.dtv_property_cache.delivery_system == SYS_DVBS2) {
 384                         switch (fdtv->fe.dtv_property_cache.modulation) {
 385                         case QAM_16:            c->operand[13] = 0x1; break;
 386                         case QPSK:              c->operand[13] = 0x2; break;
 387                         case PSK_8:             c->operand[13] = 0x3; break;
 388                         default:                c->operand[13] = 0x2; break;
 389                         }
 390                         switch (fdtv->fe.dtv_property_cache.rolloff) {
 391                         case ROLLOFF_35:        c->operand[14] = 0x2; break;
 392                         case ROLLOFF_20:        c->operand[14] = 0x0; break;
 393                         case ROLLOFF_25:        c->operand[14] = 0x1; break;
 394                         case ROLLOFF_AUTO:
 395                         default:                c->operand[14] = 0x2; break;
 396                         /* case ROLLOFF_NONE:   c->operand[14] = 0xff; break; */
 397                         }
 398                         switch (fdtv->fe.dtv_property_cache.pilot) {
 399                         case PILOT_AUTO:        c->operand[15] = 0x0; break;
 400                         case PILOT_OFF:         c->operand[15] = 0x0; break;
 401                         case PILOT_ON:          c->operand[15] = 0x1; break;
 402                         }
 403                 } else {
 404                         c->operand[13] = 0x1;  /* auto modulation */
 405                         c->operand[14] = 0xff; /* disable rolloff */
 406                         c->operand[15] = 0xff; /* disable pilot */
 407                 }
 408                 return 16;
 409         } else {
 410                 return 13;
 411         }
 412 }
 413 
 414 static int avc_tuner_dsd_dvb_c(struct firedtv *fdtv,
 415                                struct dtv_frontend_properties *p)
 416 {
 417         struct avc_command_frame *c = (void *)fdtv->avc_data;
 418 
 419         c->opcode = AVC_OPCODE_DSD;
 420 
 421         c->operand[0] = 0;    /* source plug */
 422         c->operand[1] = 0xd2; /* subfunction replace */
 423         c->operand[2] = 0x20; /* system id = DVB */
 424         c->operand[3] = 0x00; /* antenna number */
 425         c->operand[4] = 0x11; /* system_specific_multiplex selection_length */
 426 
 427         /* multiplex_valid_flags, high byte */
 428         c->operand[5] =   0 << 7 /* reserved */
 429                         | 0 << 6 /* Polarisation */
 430                         | 0 << 5 /* Orbital_Pos */
 431                         | 1 << 4 /* Frequency */
 432                         | 1 << 3 /* Symbol_Rate */
 433                         | 0 << 2 /* FEC_outer */
 434                         | (p->fec_inner  != FEC_AUTO ? 1 << 1 : 0)
 435                         | (p->modulation != QAM_AUTO ? 1 << 0 : 0);
 436 
 437         /* multiplex_valid_flags, low byte */
 438         c->operand[6] =   0 << 7 /* NetworkID */
 439                         | 0 << 0 /* reserved */ ;
 440 
 441         c->operand[7]  = 0x00;
 442         c->operand[8]  = 0x00;
 443         c->operand[9]  = 0x00;
 444         c->operand[10] = 0x00;
 445 
 446         c->operand[11] = (((p->frequency / 4000) >> 16) & 0xff) | (2 << 6);
 447         c->operand[12] = ((p->frequency / 4000) >> 8) & 0xff;
 448         c->operand[13] = (p->frequency / 4000) & 0xff;
 449         c->operand[14] = ((p->symbol_rate / 1000) >> 12) & 0xff;
 450         c->operand[15] = ((p->symbol_rate / 1000) >> 4) & 0xff;
 451         c->operand[16] = ((p->symbol_rate / 1000) << 4) & 0xf0;
 452         c->operand[17] = 0x00;
 453 
 454         switch (p->fec_inner) {
 455         case FEC_1_2:   c->operand[18] = 0x1; break;
 456         case FEC_2_3:   c->operand[18] = 0x2; break;
 457         case FEC_3_4:   c->operand[18] = 0x3; break;
 458         case FEC_5_6:   c->operand[18] = 0x4; break;
 459         case FEC_7_8:   c->operand[18] = 0x5; break;
 460         case FEC_8_9:   c->operand[18] = 0x6; break;
 461         case FEC_4_5:   c->operand[18] = 0x8; break;
 462         case FEC_AUTO:
 463         default:        c->operand[18] = 0x0;
 464         }
 465 
 466         switch (p->modulation) {
 467         case QAM_16:    c->operand[19] = 0x08; break;
 468         case QAM_32:    c->operand[19] = 0x10; break;
 469         case QAM_64:    c->operand[19] = 0x18; break;
 470         case QAM_128:   c->operand[19] = 0x20; break;
 471         case QAM_256:   c->operand[19] = 0x28; break;
 472         case QAM_AUTO:
 473         default:        c->operand[19] = 0x00;
 474         }
 475 
 476         c->operand[20] = 0x00;
 477         c->operand[21] = 0x00;
 478 
 479         return 22 + add_pid_filter(fdtv, &c->operand[22]);
 480 }
 481 
 482 static int avc_tuner_dsd_dvb_t(struct firedtv *fdtv,
 483                                struct dtv_frontend_properties *p)
 484 {
 485         struct avc_command_frame *c = (void *)fdtv->avc_data;
 486 
 487         c->opcode = AVC_OPCODE_DSD;
 488 
 489         c->operand[0] = 0;    /* source plug */
 490         c->operand[1] = 0xd2; /* subfunction replace */
 491         c->operand[2] = 0x20; /* system id = DVB */
 492         c->operand[3] = 0x00; /* antenna number */
 493         c->operand[4] = 0x0c; /* system_specific_multiplex selection_length */
 494 
 495         /* multiplex_valid_flags, high byte */
 496         c->operand[5] =
 497               0 << 7 /* reserved */
 498             | 1 << 6 /* CenterFrequency */
 499             | (p->bandwidth_hz != 0        ? 1 << 5 : 0)
 500             | (p->modulation  != QAM_AUTO              ? 1 << 4 : 0)
 501             | (p->hierarchy != HIERARCHY_AUTO ? 1 << 3 : 0)
 502             | (p->code_rate_HP   != FEC_AUTO              ? 1 << 2 : 0)
 503             | (p->code_rate_LP   != FEC_AUTO              ? 1 << 1 : 0)
 504             | (p->guard_interval != GUARD_INTERVAL_AUTO   ? 1 << 0 : 0);
 505 
 506         /* multiplex_valid_flags, low byte */
 507         c->operand[6] =
 508               0 << 7 /* NetworkID */
 509             | (p->transmission_mode != TRANSMISSION_MODE_AUTO ? 1 << 6 : 0)
 510             | 0 << 5 /* OtherFrequencyFlag */
 511             | 0 << 0 /* reserved */ ;
 512 
 513         c->operand[7]  = 0x0;
 514         c->operand[8]  = (p->frequency / 10) >> 24;
 515         c->operand[9]  = ((p->frequency / 10) >> 16) & 0xff;
 516         c->operand[10] = ((p->frequency / 10) >>  8) & 0xff;
 517         c->operand[11] = (p->frequency / 10) & 0xff;
 518 
 519         switch (p->bandwidth_hz) {
 520         case 7000000:   c->operand[12] = 0x20; break;
 521         case 8000000:
 522         case 6000000:   /* not defined by AVC spec */
 523         case 0:
 524         default:                c->operand[12] = 0x00;
 525         }
 526 
 527         switch (p->modulation) {
 528         case QAM_16:    c->operand[13] = 1 << 6; break;
 529         case QAM_64:    c->operand[13] = 2 << 6; break;
 530         case QPSK:
 531         default:        c->operand[13] = 0x00;
 532         }
 533 
 534         switch (p->hierarchy) {
 535         case HIERARCHY_1:       c->operand[13] |= 1 << 3; break;
 536         case HIERARCHY_2:       c->operand[13] |= 2 << 3; break;
 537         case HIERARCHY_4:       c->operand[13] |= 3 << 3; break;
 538         case HIERARCHY_AUTO:
 539         case HIERARCHY_NONE:
 540         default:                break;
 541         }
 542 
 543         switch (p->code_rate_HP) {
 544         case FEC_2_3:   c->operand[13] |= 1; break;
 545         case FEC_3_4:   c->operand[13] |= 2; break;
 546         case FEC_5_6:   c->operand[13] |= 3; break;
 547         case FEC_7_8:   c->operand[13] |= 4; break;
 548         case FEC_1_2:
 549         default:        break;
 550         }
 551 
 552         switch (p->code_rate_LP) {
 553         case FEC_2_3:   c->operand[14] = 1 << 5; break;
 554         case FEC_3_4:   c->operand[14] = 2 << 5; break;
 555         case FEC_5_6:   c->operand[14] = 3 << 5; break;
 556         case FEC_7_8:   c->operand[14] = 4 << 5; break;
 557         case FEC_1_2:
 558         default:        c->operand[14] = 0x00; break;
 559         }
 560 
 561         switch (p->guard_interval) {
 562         case GUARD_INTERVAL_1_16:       c->operand[14] |= 1 << 3; break;
 563         case GUARD_INTERVAL_1_8:        c->operand[14] |= 2 << 3; break;
 564         case GUARD_INTERVAL_1_4:        c->operand[14] |= 3 << 3; break;
 565         case GUARD_INTERVAL_1_32:
 566         case GUARD_INTERVAL_AUTO:
 567         default:                        break;
 568         }
 569 
 570         switch (p->transmission_mode) {
 571         case TRANSMISSION_MODE_8K:      c->operand[14] |= 1 << 1; break;
 572         case TRANSMISSION_MODE_2K:
 573         case TRANSMISSION_MODE_AUTO:
 574         default:                        break;
 575         }
 576 
 577         c->operand[15] = 0x00; /* network_ID[0] */
 578         c->operand[16] = 0x00; /* network_ID[1] */
 579 
 580         return 17 + add_pid_filter(fdtv, &c->operand[17]);
 581 }
 582 
 583 int avc_tuner_dsd(struct firedtv *fdtv,
 584                   struct dtv_frontend_properties *p)
 585 {
 586         struct avc_command_frame *c = (void *)fdtv->avc_data;
 587         int pos, ret;
 588 
 589         mutex_lock(&fdtv->avc_mutex);
 590 
 591         c->ctype   = AVC_CTYPE_CONTROL;
 592         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
 593 
 594         switch (fdtv->type) {
 595         case FIREDTV_DVB_S:
 596         case FIREDTV_DVB_S2: pos = avc_tuner_tuneqpsk(fdtv, p); break;
 597         case FIREDTV_DVB_C: pos = avc_tuner_dsd_dvb_c(fdtv, p); break;
 598         case FIREDTV_DVB_T: pos = avc_tuner_dsd_dvb_t(fdtv, p); break;
 599         default:
 600                 BUG();
 601         }
 602         pad_operands(c, pos);
 603 
 604         fdtv->avc_data_length = ALIGN(3 + pos, 4);
 605         ret = avc_write(fdtv);
 606 #if 0
 607         /*
 608          * FIXME:
 609          * u8 *status was an out-parameter of avc_tuner_dsd, unused by caller.
 610          * Check for AVC_RESPONSE_ACCEPTED here instead?
 611          */
 612         if (status)
 613                 *status = r->operand[2];
 614 #endif
 615         mutex_unlock(&fdtv->avc_mutex);
 616 
 617         if (ret == 0)
 618                 msleep(500);
 619 
 620         return ret;
 621 }
 622 
 623 int avc_tuner_set_pids(struct firedtv *fdtv, unsigned char pidc, u16 pid[])
 624 {
 625         struct avc_command_frame *c = (void *)fdtv->avc_data;
 626         int ret, pos, k;
 627 
 628         if (pidc > 16 && pidc != 0xff)
 629                 return -EINVAL;
 630 
 631         mutex_lock(&fdtv->avc_mutex);
 632 
 633         c->ctype   = AVC_CTYPE_CONTROL;
 634         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
 635         c->opcode  = AVC_OPCODE_DSD;
 636 
 637         c->operand[0] = 0;      /* source plug */
 638         c->operand[1] = 0xd2;   /* subfunction replace */
 639         c->operand[2] = 0x20;   /* system id = DVB */
 640         c->operand[3] = 0x00;   /* antenna number */
 641         c->operand[4] = 0x00;   /* system_specific_multiplex selection_length */
 642         c->operand[5] = pidc;   /* Nr_of_dsd_sel_specs */
 643 
 644         pos = 6;
 645         if (pidc != 0xff)
 646                 for (k = 0; k < pidc; k++) {
 647                         c->operand[pos++] = 0x13; /* flowfunction relay */
 648                         c->operand[pos++] = 0x80; /* dsd_sel_spec_valid_flags -> PID */
 649                         c->operand[pos++] = (pid[k] >> 8) & 0x1f;
 650                         c->operand[pos++] = pid[k] & 0xff;
 651                         c->operand[pos++] = 0x00; /* tableID */
 652                         c->operand[pos++] = 0x00; /* filter_length */
 653                 }
 654         pad_operands(c, pos);
 655 
 656         fdtv->avc_data_length = ALIGN(3 + pos, 4);
 657         ret = avc_write(fdtv);
 658 
 659         /* FIXME: check response code? */
 660 
 661         mutex_unlock(&fdtv->avc_mutex);
 662 
 663         if (ret == 0)
 664                 msleep(50);
 665 
 666         return ret;
 667 }
 668 
 669 int avc_tuner_get_ts(struct firedtv *fdtv)
 670 {
 671         struct avc_command_frame *c = (void *)fdtv->avc_data;
 672         int ret, sl;
 673 
 674         mutex_lock(&fdtv->avc_mutex);
 675 
 676         c->ctype   = AVC_CTYPE_CONTROL;
 677         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
 678         c->opcode  = AVC_OPCODE_DSIT;
 679 
 680         sl = fdtv->type == FIREDTV_DVB_T ? 0x0c : 0x11;
 681 
 682         c->operand[0] = 0;      /* source plug */
 683         c->operand[1] = 0xd2;   /* subfunction replace */
 684         c->operand[2] = 0xff;   /* status */
 685         c->operand[3] = 0x20;   /* system id = DVB */
 686         c->operand[4] = 0x00;   /* antenna number */
 687         c->operand[5] = 0x0;    /* system_specific_search_flags */
 688         c->operand[6] = sl;     /* system_specific_multiplex selection_length */
 689         /*
 690          * operand[7]: valid_flags[0]
 691          * operand[8]: valid_flags[1]
 692          * operand[7 + sl]: nr_of_dsit_sel_specs (always 0)
 693          */
 694         clear_operands(c, 7, 24);
 695 
 696         fdtv->avc_data_length = fdtv->type == FIREDTV_DVB_T ? 24 : 28;
 697         ret = avc_write(fdtv);
 698 
 699         /* FIXME: check response code? */
 700 
 701         mutex_unlock(&fdtv->avc_mutex);
 702 
 703         if (ret == 0)
 704                 msleep(250);
 705 
 706         return ret;
 707 }
 708 
 709 int avc_identify_subunit(struct firedtv *fdtv)
 710 {
 711         struct avc_command_frame *c = (void *)fdtv->avc_data;
 712         struct avc_response_frame *r = (void *)fdtv->avc_data;
 713         int ret;
 714 
 715         mutex_lock(&fdtv->avc_mutex);
 716 
 717         c->ctype   = AVC_CTYPE_CONTROL;
 718         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
 719         c->opcode  = AVC_OPCODE_READ_DESCRIPTOR;
 720 
 721         c->operand[0] = DESCRIPTOR_SUBUNIT_IDENTIFIER;
 722         c->operand[1] = 0xff;
 723         c->operand[2] = 0x00;
 724         c->operand[3] = 0x00; /* length highbyte */
 725         c->operand[4] = 0x08; /* length lowbyte  */
 726         c->operand[5] = 0x00; /* offset highbyte */
 727         c->operand[6] = 0x0d; /* offset lowbyte  */
 728         clear_operands(c, 7, 8); /* padding */
 729 
 730         fdtv->avc_data_length = 12;
 731         ret = avc_write(fdtv);
 732         if (ret < 0)
 733                 goto out;
 734 
 735         if ((r->response != AVC_RESPONSE_STABLE &&
 736              r->response != AVC_RESPONSE_ACCEPTED) ||
 737             (r->operand[3] << 8) + r->operand[4] != 8) {
 738                 dev_err(fdtv->device, "cannot read subunit identifier\n");
 739                 ret = -EINVAL;
 740         }
 741 out:
 742         mutex_unlock(&fdtv->avc_mutex);
 743 
 744         return ret;
 745 }
 746 
 747 #define SIZEOF_ANTENNA_INPUT_INFO 22
 748 
 749 int avc_tuner_status(struct firedtv *fdtv, struct firedtv_tuner_status *stat)
 750 {
 751         struct avc_command_frame *c = (void *)fdtv->avc_data;
 752         struct avc_response_frame *r = (void *)fdtv->avc_data;
 753         int length, ret;
 754 
 755         mutex_lock(&fdtv->avc_mutex);
 756 
 757         c->ctype   = AVC_CTYPE_CONTROL;
 758         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
 759         c->opcode  = AVC_OPCODE_READ_DESCRIPTOR;
 760 
 761         c->operand[0] = DESCRIPTOR_TUNER_STATUS;
 762         c->operand[1] = 0xff;   /* read_result_status */
 763         /*
 764          * operand[2]: reserved
 765          * operand[3]: SIZEOF_ANTENNA_INPUT_INFO >> 8
 766          * operand[4]: SIZEOF_ANTENNA_INPUT_INFO & 0xff
 767          */
 768         clear_operands(c, 2, 31);
 769 
 770         fdtv->avc_data_length = 12;
 771         ret = avc_write(fdtv);
 772         if (ret < 0)
 773                 goto out;
 774 
 775         if (r->response != AVC_RESPONSE_STABLE &&
 776             r->response != AVC_RESPONSE_ACCEPTED) {
 777                 dev_err(fdtv->device, "cannot read tuner status\n");
 778                 ret = -EINVAL;
 779                 goto out;
 780         }
 781 
 782         length = r->operand[9];
 783         if (r->operand[1] != 0x10 || length != SIZEOF_ANTENNA_INPUT_INFO) {
 784                 dev_err(fdtv->device, "got invalid tuner status\n");
 785                 ret = -EINVAL;
 786                 goto out;
 787         }
 788 
 789         stat->active_system             = r->operand[10];
 790         stat->searching                 = r->operand[11] >> 7 & 1;
 791         stat->moving                    = r->operand[11] >> 6 & 1;
 792         stat->no_rf                     = r->operand[11] >> 5 & 1;
 793         stat->input                     = r->operand[12] >> 7 & 1;
 794         stat->selected_antenna          = r->operand[12] & 0x7f;
 795         stat->ber                       = r->operand[13] << 24 |
 796                                           r->operand[14] << 16 |
 797                                           r->operand[15] << 8 |
 798                                           r->operand[16];
 799         stat->signal_strength           = r->operand[17];
 800         stat->raster_frequency          = r->operand[18] >> 6 & 2;
 801         stat->rf_frequency              = (r->operand[18] & 0x3f) << 16 |
 802                                           r->operand[19] << 8 |
 803                                           r->operand[20];
 804         stat->man_dep_info_length       = r->operand[21];
 805         stat->front_end_error           = r->operand[22] >> 4 & 1;
 806         stat->antenna_error             = r->operand[22] >> 3 & 1;
 807         stat->front_end_power_status    = r->operand[22] >> 1 & 1;
 808         stat->power_supply              = r->operand[22] & 1;
 809         stat->carrier_noise_ratio       = r->operand[23] << 8 |
 810                                           r->operand[24];
 811         stat->power_supply_voltage      = r->operand[27];
 812         stat->antenna_voltage           = r->operand[28];
 813         stat->firewire_bus_voltage      = r->operand[29];
 814         stat->ca_mmi                    = r->operand[30] & 1;
 815         stat->ca_pmt_reply              = r->operand[31] >> 7 & 1;
 816         stat->ca_date_time_request      = r->operand[31] >> 6 & 1;
 817         stat->ca_application_info       = r->operand[31] >> 5 & 1;
 818         stat->ca_module_present_status  = r->operand[31] >> 4 & 1;
 819         stat->ca_dvb_flag               = r->operand[31] >> 3 & 1;
 820         stat->ca_error_flag             = r->operand[31] >> 2 & 1;
 821         stat->ca_initialization_status  = r->operand[31] >> 1 & 1;
 822 out:
 823         mutex_unlock(&fdtv->avc_mutex);
 824 
 825         return ret;
 826 }
 827 
 828 int avc_lnb_control(struct firedtv *fdtv, char voltage, char burst,
 829                     char conttone, char nrdiseq,
 830                     struct dvb_diseqc_master_cmd *diseqcmd)
 831 {
 832         struct avc_command_frame *c = (void *)fdtv->avc_data;
 833         struct avc_response_frame *r = (void *)fdtv->avc_data;
 834         int pos, j, k, ret;
 835 
 836         mutex_lock(&fdtv->avc_mutex);
 837 
 838         c->ctype   = AVC_CTYPE_CONTROL;
 839         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
 840         c->opcode  = AVC_OPCODE_VENDOR;
 841 
 842         c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
 843         c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
 844         c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
 845         c->operand[3] = SFE_VENDOR_OPCODE_LNB_CONTROL;
 846         c->operand[4] = voltage;
 847         c->operand[5] = nrdiseq;
 848 
 849         pos = 6;
 850         for (j = 0; j < nrdiseq; j++) {
 851                 c->operand[pos++] = diseqcmd[j].msg_len;
 852 
 853                 for (k = 0; k < diseqcmd[j].msg_len; k++)
 854                         c->operand[pos++] = diseqcmd[j].msg[k];
 855         }
 856         c->operand[pos++] = burst;
 857         c->operand[pos++] = conttone;
 858         pad_operands(c, pos);
 859 
 860         fdtv->avc_data_length = ALIGN(3 + pos, 4);
 861         ret = avc_write(fdtv);
 862         if (ret < 0)
 863                 goto out;
 864 
 865         if (r->response != AVC_RESPONSE_ACCEPTED) {
 866                 dev_err(fdtv->device, "LNB control failed\n");
 867                 ret = -EINVAL;
 868         }
 869 out:
 870         mutex_unlock(&fdtv->avc_mutex);
 871 
 872         return ret;
 873 }
 874 
 875 int avc_register_remote_control(struct firedtv *fdtv)
 876 {
 877         struct avc_command_frame *c = (void *)fdtv->avc_data;
 878         int ret;
 879 
 880         mutex_lock(&fdtv->avc_mutex);
 881 
 882         c->ctype   = AVC_CTYPE_NOTIFY;
 883         c->subunit = AVC_SUBUNIT_TYPE_UNIT | 7;
 884         c->opcode  = AVC_OPCODE_VENDOR;
 885 
 886         c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
 887         c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
 888         c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
 889         c->operand[3] = SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL;
 890         c->operand[4] = 0; /* padding */
 891 
 892         fdtv->avc_data_length = 8;
 893         ret = avc_write(fdtv);
 894 
 895         /* FIXME: check response code? */
 896 
 897         mutex_unlock(&fdtv->avc_mutex);
 898 
 899         return ret;
 900 }
 901 
 902 void avc_remote_ctrl_work(struct work_struct *work)
 903 {
 904         struct firedtv *fdtv =
 905                         container_of(work, struct firedtv, remote_ctrl_work);
 906 
 907         /* Should it be rescheduled in failure cases? */
 908         avc_register_remote_control(fdtv);
 909 }
 910 
 911 #if 0 /* FIXME: unused */
 912 int avc_tuner_host2ca(struct firedtv *fdtv)
 913 {
 914         struct avc_command_frame *c = (void *)fdtv->avc_data;
 915         int ret;
 916 
 917         mutex_lock(&fdtv->avc_mutex);
 918 
 919         c->ctype   = AVC_CTYPE_CONTROL;
 920         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
 921         c->opcode  = AVC_OPCODE_VENDOR;
 922 
 923         c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
 924         c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
 925         c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
 926         c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA;
 927         c->operand[4] = 0; /* slot */
 928         c->operand[5] = SFE_VENDOR_TAG_CA_APPLICATION_INFO; /* ca tag */
 929         clear_operands(c, 6, 8);
 930 
 931         fdtv->avc_data_length = 12;
 932         ret = avc_write(fdtv);
 933 
 934         /* FIXME: check response code? */
 935 
 936         mutex_unlock(&fdtv->avc_mutex);
 937 
 938         return ret;
 939 }
 940 #endif
 941 
 942 static int get_ca_object_pos(struct avc_response_frame *r)
 943 {
 944         int length = 1;
 945 
 946         /* Check length of length field */
 947         if (r->operand[7] & 0x80)
 948                 length = (r->operand[7] & 0x7f) + 1;
 949         return length + 7;
 950 }
 951 
 952 static int get_ca_object_length(struct avc_response_frame *r)
 953 {
 954 #if 0 /* FIXME: unused */
 955         int size = 0;
 956         int i;
 957 
 958         if (r->operand[7] & 0x80)
 959                 for (i = 0; i < (r->operand[7] & 0x7f); i++) {
 960                         size <<= 8;
 961                         size += r->operand[8 + i];
 962                 }
 963 #endif
 964         return r->operand[7];
 965 }
 966 
 967 int avc_ca_app_info(struct firedtv *fdtv, unsigned char *app_info,
 968                     unsigned int *len)
 969 {
 970         struct avc_command_frame *c = (void *)fdtv->avc_data;
 971         struct avc_response_frame *r = (void *)fdtv->avc_data;
 972         int pos, ret;
 973 
 974         mutex_lock(&fdtv->avc_mutex);
 975 
 976         c->ctype   = AVC_CTYPE_STATUS;
 977         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
 978         c->opcode  = AVC_OPCODE_VENDOR;
 979 
 980         c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
 981         c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
 982         c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
 983         c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST;
 984         c->operand[4] = 0; /* slot */
 985         c->operand[5] = SFE_VENDOR_TAG_CA_APPLICATION_INFO; /* ca tag */
 986         clear_operands(c, 6, LAST_OPERAND);
 987 
 988         fdtv->avc_data_length = 12;
 989         ret = avc_write(fdtv);
 990         if (ret < 0)
 991                 goto out;
 992 
 993         /* FIXME: check response code and validate response data */
 994 
 995         pos = get_ca_object_pos(r);
 996         app_info[0] = (EN50221_TAG_APP_INFO >> 16) & 0xff;
 997         app_info[1] = (EN50221_TAG_APP_INFO >>  8) & 0xff;
 998         app_info[2] = (EN50221_TAG_APP_INFO >>  0) & 0xff;
 999         app_info[3] = 6 + r->operand[pos + 4];
1000         app_info[4] = 0x01;
1001         memcpy(&app_info[5], &r->operand[pos], 5 + r->operand[pos + 4]);
1002         *len = app_info[3] + 4;
1003 out:
1004         mutex_unlock(&fdtv->avc_mutex);
1005 
1006         return ret;
1007 }
1008 
1009 int avc_ca_info(struct firedtv *fdtv, unsigned char *app_info,
1010                 unsigned int *len)
1011 {
1012         struct avc_command_frame *c = (void *)fdtv->avc_data;
1013         struct avc_response_frame *r = (void *)fdtv->avc_data;
1014         int i, pos, ret;
1015 
1016         mutex_lock(&fdtv->avc_mutex);
1017 
1018         c->ctype   = AVC_CTYPE_STATUS;
1019         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
1020         c->opcode  = AVC_OPCODE_VENDOR;
1021 
1022         c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
1023         c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
1024         c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
1025         c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST;
1026         c->operand[4] = 0; /* slot */
1027         c->operand[5] = SFE_VENDOR_TAG_CA_APPLICATION_INFO; /* ca tag */
1028         clear_operands(c, 6, LAST_OPERAND);
1029 
1030         fdtv->avc_data_length = 12;
1031         ret = avc_write(fdtv);
1032         if (ret < 0)
1033                 goto out;
1034 
1035         /* FIXME: check response code and validate response data */
1036 
1037         pos = get_ca_object_pos(r);
1038         app_info[0] = (EN50221_TAG_CA_INFO >> 16) & 0xff;
1039         app_info[1] = (EN50221_TAG_CA_INFO >>  8) & 0xff;
1040         app_info[2] = (EN50221_TAG_CA_INFO >>  0) & 0xff;
1041         if (num_fake_ca_system_ids == 0) {
1042                 app_info[3] = 2;
1043                 app_info[4] = r->operand[pos + 0];
1044                 app_info[5] = r->operand[pos + 1];
1045         } else {
1046                 app_info[3] = num_fake_ca_system_ids * 2;
1047                 for (i = 0; i < num_fake_ca_system_ids; i++) {
1048                         app_info[4 + i * 2] =
1049                                 (fake_ca_system_ids[i] >> 8) & 0xff;
1050                         app_info[5 + i * 2] = fake_ca_system_ids[i] & 0xff;
1051                 }
1052         }
1053         *len = app_info[3] + 4;
1054 out:
1055         mutex_unlock(&fdtv->avc_mutex);
1056 
1057         return ret;
1058 }
1059 
1060 int avc_ca_reset(struct firedtv *fdtv)
1061 {
1062         struct avc_command_frame *c = (void *)fdtv->avc_data;
1063         int ret;
1064 
1065         mutex_lock(&fdtv->avc_mutex);
1066 
1067         c->ctype   = AVC_CTYPE_CONTROL;
1068         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
1069         c->opcode  = AVC_OPCODE_VENDOR;
1070 
1071         c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
1072         c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
1073         c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
1074         c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA;
1075         c->operand[4] = 0; /* slot */
1076         c->operand[5] = SFE_VENDOR_TAG_CA_RESET; /* ca tag */
1077         c->operand[6] = 0; /* more/last */
1078         c->operand[7] = 1; /* length */
1079         c->operand[8] = 0; /* force hardware reset */
1080 
1081         fdtv->avc_data_length = 12;
1082         ret = avc_write(fdtv);
1083 
1084         /* FIXME: check response code? */
1085 
1086         mutex_unlock(&fdtv->avc_mutex);
1087 
1088         return ret;
1089 }
1090 
1091 int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length)
1092 {
1093         struct avc_command_frame *c = (void *)fdtv->avc_data;
1094         struct avc_response_frame *r = (void *)fdtv->avc_data;
1095         int list_management;
1096         int program_info_length;
1097         int pmt_cmd_id;
1098         int read_pos;
1099         int write_pos;
1100         int es_info_length;
1101         int crc32_csum;
1102         int ret;
1103 
1104         if (unlikely(avc_debug & AVC_DEBUG_APPLICATION_PMT))
1105                 debug_pmt(msg, length);
1106 
1107         mutex_lock(&fdtv->avc_mutex);
1108 
1109         c->ctype   = AVC_CTYPE_CONTROL;
1110         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
1111         c->opcode  = AVC_OPCODE_VENDOR;
1112 
1113         if (msg[0] != EN50221_LIST_MANAGEMENT_ONLY) {
1114                 dev_info(fdtv->device, "forcing list_management to ONLY\n");
1115                 msg[0] = EN50221_LIST_MANAGEMENT_ONLY;
1116         }
1117         /* We take the cmd_id from the programme level only! */
1118         list_management = msg[0];
1119         program_info_length = ((msg[4] & 0x0f) << 8) + msg[5];
1120         if (program_info_length > 0)
1121                 program_info_length--; /* Remove pmt_cmd_id */
1122         pmt_cmd_id = msg[6];
1123 
1124         c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
1125         c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
1126         c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
1127         c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA;
1128         c->operand[4] = 0; /* slot */
1129         c->operand[5] = SFE_VENDOR_TAG_CA_PMT; /* ca tag */
1130         c->operand[6] = 0; /* more/last */
1131         /* Use three bytes for length field in case length > 127 */
1132         c->operand[10] = list_management;
1133         c->operand[11] = 0x01; /* pmt_cmd=OK_descramble */
1134 
1135         /* TS program map table */
1136 
1137         c->operand[12] = 0x02; /* Table id=2 */
1138         c->operand[13] = 0x80; /* Section syntax + length */
1139 
1140         c->operand[15] = msg[1]; /* Program number */
1141         c->operand[16] = msg[2];
1142         c->operand[17] = msg[3]; /* Version number and current/next */
1143         c->operand[18] = 0x00; /* Section number=0 */
1144         c->operand[19] = 0x00; /* Last section number=0 */
1145         c->operand[20] = 0x1f; /* PCR_PID=1FFF */
1146         c->operand[21] = 0xff;
1147         c->operand[22] = (program_info_length >> 8); /* Program info length */
1148         c->operand[23] = (program_info_length & 0xff);
1149 
1150         /* CA descriptors at programme level */
1151         read_pos = 6;
1152         write_pos = 24;
1153         if (program_info_length > 0) {
1154                 pmt_cmd_id = msg[read_pos++];
1155                 if (pmt_cmd_id != 1 && pmt_cmd_id != 4)
1156                         dev_err(fdtv->device,
1157                                 "invalid pmt_cmd_id %d\n", pmt_cmd_id);
1158                 if (program_info_length > sizeof(c->operand) - 4 - write_pos) {
1159                         ret = -EINVAL;
1160                         goto out;
1161                 }
1162 
1163                 memcpy(&c->operand[write_pos], &msg[read_pos],
1164                        program_info_length);
1165                 read_pos += program_info_length;
1166                 write_pos += program_info_length;
1167         }
1168         while (read_pos < length) {
1169                 c->operand[write_pos++] = msg[read_pos++];
1170                 c->operand[write_pos++] = msg[read_pos++];
1171                 c->operand[write_pos++] = msg[read_pos++];
1172                 es_info_length =
1173                         ((msg[read_pos] & 0x0f) << 8) + msg[read_pos + 1];
1174                 read_pos += 2;
1175                 if (es_info_length > 0)
1176                         es_info_length--; /* Remove pmt_cmd_id */
1177                 c->operand[write_pos++] = es_info_length >> 8;
1178                 c->operand[write_pos++] = es_info_length & 0xff;
1179                 if (es_info_length > 0) {
1180                         pmt_cmd_id = msg[read_pos++];
1181                         if (pmt_cmd_id != 1 && pmt_cmd_id != 4)
1182                                 dev_err(fdtv->device, "invalid pmt_cmd_id %d at stream level\n",
1183                                         pmt_cmd_id);
1184 
1185                         if (es_info_length > sizeof(c->operand) - 4 -
1186                                              write_pos) {
1187                                 ret = -EINVAL;
1188                                 goto out;
1189                         }
1190 
1191                         memcpy(&c->operand[write_pos], &msg[read_pos],
1192                                es_info_length);
1193                         read_pos += es_info_length;
1194                         write_pos += es_info_length;
1195                 }
1196         }
1197         write_pos += 4; /* CRC */
1198 
1199         c->operand[7] = 0x82;
1200         c->operand[8] = (write_pos - 10) >> 8;
1201         c->operand[9] = (write_pos - 10) & 0xff;
1202         c->operand[14] = write_pos - 15;
1203 
1204         crc32_csum = crc32_be(0, &c->operand[10], c->operand[12] - 1);
1205         c->operand[write_pos - 4] = (crc32_csum >> 24) & 0xff;
1206         c->operand[write_pos - 3] = (crc32_csum >> 16) & 0xff;
1207         c->operand[write_pos - 2] = (crc32_csum >>  8) & 0xff;
1208         c->operand[write_pos - 1] = (crc32_csum >>  0) & 0xff;
1209         pad_operands(c, write_pos);
1210 
1211         fdtv->avc_data_length = ALIGN(3 + write_pos, 4);
1212         ret = avc_write(fdtv);
1213         if (ret < 0)
1214                 goto out;
1215 
1216         if (r->response != AVC_RESPONSE_ACCEPTED) {
1217                 dev_err(fdtv->device,
1218                         "CA PMT failed with response 0x%x\n", r->response);
1219                 ret = -EACCES;
1220         }
1221 out:
1222         mutex_unlock(&fdtv->avc_mutex);
1223 
1224         return ret;
1225 }
1226 
1227 int avc_ca_get_time_date(struct firedtv *fdtv, int *interval)
1228 {
1229         struct avc_command_frame *c = (void *)fdtv->avc_data;
1230         struct avc_response_frame *r = (void *)fdtv->avc_data;
1231         int ret;
1232 
1233         mutex_lock(&fdtv->avc_mutex);
1234 
1235         c->ctype   = AVC_CTYPE_STATUS;
1236         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
1237         c->opcode  = AVC_OPCODE_VENDOR;
1238 
1239         c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
1240         c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
1241         c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
1242         c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST;
1243         c->operand[4] = 0; /* slot */
1244         c->operand[5] = SFE_VENDOR_TAG_CA_DATE_TIME; /* ca tag */
1245         clear_operands(c, 6, LAST_OPERAND);
1246 
1247         fdtv->avc_data_length = 12;
1248         ret = avc_write(fdtv);
1249         if (ret < 0)
1250                 goto out;
1251 
1252         /* FIXME: check response code and validate response data */
1253 
1254         *interval = r->operand[get_ca_object_pos(r)];
1255 out:
1256         mutex_unlock(&fdtv->avc_mutex);
1257 
1258         return ret;
1259 }
1260 
1261 int avc_ca_enter_menu(struct firedtv *fdtv)
1262 {
1263         struct avc_command_frame *c = (void *)fdtv->avc_data;
1264         int ret;
1265 
1266         mutex_lock(&fdtv->avc_mutex);
1267 
1268         c->ctype   = AVC_CTYPE_STATUS;
1269         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
1270         c->opcode  = AVC_OPCODE_VENDOR;
1271 
1272         c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
1273         c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
1274         c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
1275         c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA;
1276         c->operand[4] = 0; /* slot */
1277         c->operand[5] = SFE_VENDOR_TAG_CA_ENTER_MENU;
1278         clear_operands(c, 6, 8);
1279 
1280         fdtv->avc_data_length = 12;
1281         ret = avc_write(fdtv);
1282 
1283         /* FIXME: check response code? */
1284 
1285         mutex_unlock(&fdtv->avc_mutex);
1286 
1287         return ret;
1288 }
1289 
1290 int avc_ca_get_mmi(struct firedtv *fdtv, char *mmi_object, unsigned int *len)
1291 {
1292         struct avc_command_frame *c = (void *)fdtv->avc_data;
1293         struct avc_response_frame *r = (void *)fdtv->avc_data;
1294         int ret;
1295 
1296         mutex_lock(&fdtv->avc_mutex);
1297 
1298         c->ctype   = AVC_CTYPE_STATUS;
1299         c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
1300         c->opcode  = AVC_OPCODE_VENDOR;
1301 
1302         c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
1303         c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
1304         c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
1305         c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST;
1306         c->operand[4] = 0; /* slot */
1307         c->operand[5] = SFE_VENDOR_TAG_CA_MMI;
1308         clear_operands(c, 6, LAST_OPERAND);
1309 
1310         fdtv->avc_data_length = 12;
1311         ret = avc_write(fdtv);
1312         if (ret < 0)
1313                 goto out;
1314 
1315         /* FIXME: check response code and validate response data */
1316 
1317         *len = get_ca_object_length(r);
1318         memcpy(mmi_object, &r->operand[get_ca_object_pos(r)], *len);
1319 out:
1320         mutex_unlock(&fdtv->avc_mutex);
1321 
1322         return ret;
1323 }
1324 
1325 #define CMP_OUTPUT_PLUG_CONTROL_REG_0   0xfffff0000904ULL
1326 
1327 static int cmp_read(struct firedtv *fdtv, u64 addr, __be32 *data)
1328 {
1329         int ret;
1330 
1331         ret = fdtv_read(fdtv, addr, data);
1332         if (ret < 0)
1333                 dev_err(fdtv->device, "CMP: read I/O error\n");
1334 
1335         return ret;
1336 }
1337 
1338 static int cmp_lock(struct firedtv *fdtv, u64 addr, __be32 data[])
1339 {
1340         int ret;
1341 
1342         ret = fdtv_lock(fdtv, addr, data);
1343         if (ret < 0)
1344                 dev_err(fdtv->device, "CMP: lock I/O error\n");
1345 
1346         return ret;
1347 }
1348 
1349 static inline u32 get_opcr(__be32 opcr, u32 mask, u32 shift)
1350 {
1351         return (be32_to_cpu(opcr) >> shift) & mask;
1352 }
1353 
1354 static inline void set_opcr(__be32 *opcr, u32 value, u32 mask, u32 shift)
1355 {
1356         *opcr &= ~cpu_to_be32(mask << shift);
1357         *opcr |= cpu_to_be32((value & mask) << shift);
1358 }
1359 
1360 #define get_opcr_online(v)              get_opcr((v), 0x1, 31)
1361 #define get_opcr_p2p_connections(v)     get_opcr((v), 0x3f, 24)
1362 #define get_opcr_channel(v)             get_opcr((v), 0x3f, 16)
1363 
1364 #define set_opcr_p2p_connections(p, v)  set_opcr((p), (v), 0x3f, 24)
1365 #define set_opcr_channel(p, v)          set_opcr((p), (v), 0x3f, 16)
1366 #define set_opcr_data_rate(p, v)        set_opcr((p), (v), 0x3, 14)
1367 #define set_opcr_overhead_id(p, v)      set_opcr((p), (v), 0xf, 10)
1368 
1369 int cmp_establish_pp_connection(struct firedtv *fdtv, int plug, int channel)
1370 {
1371         __be32 old_opcr, opcr[2];
1372         u64 opcr_address = CMP_OUTPUT_PLUG_CONTROL_REG_0 + (plug << 2);
1373         int attempts = 0;
1374         int ret;
1375 
1376         ret = cmp_read(fdtv, opcr_address, opcr);
1377         if (ret < 0)
1378                 return ret;
1379 
1380 repeat:
1381         if (!get_opcr_online(*opcr)) {
1382                 dev_err(fdtv->device, "CMP: output offline\n");
1383                 return -EBUSY;
1384         }
1385 
1386         old_opcr = *opcr;
1387 
1388         if (get_opcr_p2p_connections(*opcr)) {
1389                 if (get_opcr_channel(*opcr) != channel) {
1390                         dev_err(fdtv->device, "CMP: cannot change channel\n");
1391                         return -EBUSY;
1392                 }
1393                 dev_info(fdtv->device, "CMP: overlaying connection\n");
1394 
1395                 /* We don't allocate isochronous resources. */
1396         } else {
1397                 set_opcr_channel(opcr, channel);
1398                 set_opcr_data_rate(opcr, 2); /* S400 */
1399 
1400                 /* FIXME: this is for the worst case - optimize */
1401                 set_opcr_overhead_id(opcr, 0);
1402 
1403                 /* FIXME: allocate isochronous channel and bandwidth at IRM */
1404         }
1405 
1406         set_opcr_p2p_connections(opcr, get_opcr_p2p_connections(*opcr) + 1);
1407 
1408         opcr[1] = *opcr;
1409         opcr[0] = old_opcr;
1410 
1411         ret = cmp_lock(fdtv, opcr_address, opcr);
1412         if (ret < 0)
1413                 return ret;
1414 
1415         if (old_opcr != *opcr) {
1416                 /*
1417                  * FIXME: if old_opcr.P2P_Connections > 0,
1418                  * deallocate isochronous channel and bandwidth at IRM
1419                  */
1420 
1421                 if (++attempts < 6) /* arbitrary limit */
1422                         goto repeat;
1423                 return -EBUSY;
1424         }
1425 
1426         return 0;
1427 }
1428 
1429 void cmp_break_pp_connection(struct firedtv *fdtv, int plug, int channel)
1430 {
1431         __be32 old_opcr, opcr[2];
1432         u64 opcr_address = CMP_OUTPUT_PLUG_CONTROL_REG_0 + (plug << 2);
1433         int attempts = 0;
1434 
1435         if (cmp_read(fdtv, opcr_address, opcr) < 0)
1436                 return;
1437 
1438 repeat:
1439         if (!get_opcr_online(*opcr) || !get_opcr_p2p_connections(*opcr) ||
1440             get_opcr_channel(*opcr) != channel) {
1441                 dev_err(fdtv->device, "CMP: no connection to break\n");
1442                 return;
1443         }
1444 
1445         old_opcr = *opcr;
1446         set_opcr_p2p_connections(opcr, get_opcr_p2p_connections(*opcr) - 1);
1447 
1448         opcr[1] = *opcr;
1449         opcr[0] = old_opcr;
1450 
1451         if (cmp_lock(fdtv, opcr_address, opcr) < 0)
1452                 return;
1453 
1454         if (old_opcr != *opcr) {
1455                 /*
1456                  * FIXME: if old_opcr.P2P_Connections == 1, i.e. we were last
1457                  * owner, deallocate isochronous channel and bandwidth at IRM
1458                  * if (...)
1459                  *      fdtv->backend->dealloc_resources(fdtv, channel, bw);
1460                  */
1461 
1462                 if (++attempts < 6) /* arbitrary limit */
1463                         goto repeat;
1464         }
1465 }

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