Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 | /*
* Driver for USB Windows Media Center Ed. eHome Infrared Transceivers
*
* Copyright (c) 2010 by Jarod Wilson <jarod@redhat.com>
*
* Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan
* Conti, Martin Blatter and Daniel Melander, the latter of which was
* in turn also based on the lirc_atiusb driver by Paul Miller. The
* two mce drivers were merged into one by Jarod Wilson, with transmit
* support for the 1st-gen device added primarily by Patrick Calhoun,
* with a bit of tweaks by Jarod. Debugging improvements and proper
* support for what appears to be 3rd-gen hardware added by Jarod.
* Initial port from lirc driver to ir-core drivery by Jarod, based
* partially on a port to an earlier proposed IR infrastructure by
* Jon Smirl, which included enhancements and simplifications to the
* incoming IR buffer parsing routines.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/device.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/usb/input.h>
#include <media/rc-core.h>
#define DRIVER_VERSION "1.91"
#define DRIVER_AUTHOR "Jarod Wilson <jarod@wilsonet.com>"
#define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \
"device driver"
#define DRIVER_NAME "mceusb"
#define USB_BUFLEN 32 /* USB reception buffer length */
#define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */
#define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */
/* MCE constants */
#define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */
#define MCE_TIME_UNIT 50 /* Approx 50us resolution */
#define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */
#define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */
#define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */
#define MCE_IRDATA_TRAILER 0x80 /* End of IR data */
#define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */
#define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */
#define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */
#define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */
#define MCE_PULSE_MASK 0x7f /* Pulse mask */
#define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */
#define MCE_HW_CMD_HEADER 0xff /* MCE hardware command header */
#define MCE_COMMAND_HEADER 0x9f /* MCE command header */
#define MCE_COMMAND_MASK 0xe0 /* Mask out command bits */
#define MCE_COMMAND_NULL 0x00 /* These show up various places... */
/* if buf[i] & MCE_COMMAND_MASK == 0x80 and buf[i] != MCE_COMMAND_HEADER,
* then we're looking at a raw IR data sample */
#define MCE_COMMAND_IRDATA 0x80
#define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */
/* Sub-commands, which follow MCE_COMMAND_HEADER or MCE_HW_CMD_HEADER */
#define MCE_CMD_SIG_END 0x01 /* End of signal */
#define MCE_CMD_PING 0x03 /* Ping device */
#define MCE_CMD_UNKNOWN 0x04 /* Unknown */
#define MCE_CMD_UNKNOWN2 0x05 /* Unknown */
#define MCE_CMD_S_CARRIER 0x06 /* Set TX carrier frequency */
#define MCE_CMD_G_CARRIER 0x07 /* Get TX carrier frequency */
#define MCE_CMD_S_TXMASK 0x08 /* Set TX port bitmask */
#define MCE_CMD_UNKNOWN3 0x09 /* Unknown */
#define MCE_CMD_UNKNOWN4 0x0a /* Unknown */
#define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */
#define MCE_CMD_S_TIMEOUT 0x0c /* Set RX timeout value */
#define MCE_CMD_G_TIMEOUT 0x0d /* Get RX timeout value */
#define MCE_CMD_UNKNOWN5 0x0e /* Unknown */
#define MCE_CMD_UNKNOWN6 0x0f /* Unknown */
#define MCE_CMD_G_RXPORTSTS 0x11 /* Get RX port status */
#define MCE_CMD_G_TXMASK 0x13 /* Set TX port bitmask */
#define MCE_CMD_S_RXSENSOR 0x14 /* Set RX sensor (std/learning) */
#define MCE_CMD_G_RXSENSOR 0x15 /* Get RX sensor (std/learning) */
#define MCE_RSP_PULSE_COUNT 0x15 /* RX pulse count (only if learning) */
#define MCE_CMD_TX_PORTS 0x16 /* Get number of TX ports */
#define MCE_CMD_G_WAKESRC 0x17 /* Get wake source */
#define MCE_CMD_UNKNOWN7 0x18 /* Unknown */
#define MCE_CMD_UNKNOWN8 0x19 /* Unknown */
#define MCE_CMD_UNKNOWN9 0x1b /* Unknown */
#define MCE_CMD_DEVICE_RESET 0xaa /* Reset the hardware */
#define MCE_RSP_CMD_INVALID 0xfe /* Invalid command issued */
/* module parameters */
#ifdef CONFIG_USB_DEBUG
static int debug = 1;
#else
static int debug;
#endif
#define mce_dbg(dev, fmt, ...) \
do { \
if (debug) \
dev_info(dev, fmt, ## __VA_ARGS__); \
} while (0)
/* general constants */
#define SEND_FLAG_IN_PROGRESS 1
#define SEND_FLAG_COMPLETE 2
#define RECV_FLAG_IN_PROGRESS 3
#define RECV_FLAG_COMPLETE 4
#define MCEUSB_RX 1
#define MCEUSB_TX 2
#define VENDOR_PHILIPS 0x0471
#define VENDOR_SMK 0x0609
#define VENDOR_TATUNG 0x1460
#define VENDOR_GATEWAY 0x107b
#define VENDOR_SHUTTLE 0x1308
#define VENDOR_SHUTTLE2 0x051c
#define VENDOR_MITSUMI 0x03ee
#define VENDOR_TOPSEED 0x1784
#define VENDOR_RICAVISION 0x179d
#define VENDOR_ITRON 0x195d
#define VENDOR_FIC 0x1509
#define VENDOR_LG 0x043e
#define VENDOR_MICROSOFT 0x045e
#define VENDOR_FORMOSA 0x147a
#define VENDOR_FINTEK 0x1934
#define VENDOR_PINNACLE 0x2304
#define VENDOR_ECS 0x1019
#define VENDOR_WISTRON 0x0fb8
#define VENDOR_COMPRO 0x185b
#define VENDOR_NORTHSTAR 0x04eb
#define VENDOR_REALTEK 0x0bda
#define VENDOR_TIVO 0x105a
#define VENDOR_CONEXANT 0x0572
enum mceusb_model_type {
MCE_GEN2 = 0, /* Most boards */
MCE_GEN1,
MCE_GEN3,
MCE_GEN2_TX_INV,
POLARIS_EVK,
CX_HYBRID_TV,
MULTIFUNCTION,
TIVO_KIT,
MCE_GEN2_NO_TX,
};
struct mceusb_model {
u32 mce_gen1:1;
u32 mce_gen2:1;
u32 mce_gen3:1;
u32 tx_mask_normal:1;
u32 no_tx:1;
int ir_intfnum;
const char *rc_map; /* Allow specify a per-board map */
const char *name; /* per-board name */
};
static const struct mceusb_model mceusb_model[] = {
[MCE_GEN1] = {
.mce_gen1 = 1,
.tx_mask_normal = 1,
},
[MCE_GEN2] = {
.mce_gen2 = 1,
},
[MCE_GEN2_NO_TX] = {
.mce_gen2 = 1,
.no_tx = 1,
},
[MCE_GEN2_TX_INV] = {
.mce_gen2 = 1,
.tx_mask_normal = 1,
},
[MCE_GEN3] = {
.mce_gen3 = 1,
.tx_mask_normal = 1,
},
[POLARIS_EVK] = {
/*
* In fact, the EVK is shipped without
* remotes, but we should have something handy,
* to allow testing it
*/
.rc_map = RC_MAP_HAUPPAUGE,
.name = "Conexant Hybrid TV (cx231xx) MCE IR",
},
[CX_HYBRID_TV] = {
.no_tx = 1, /* tx isn't wired up at all */
.name = "Conexant Hybrid TV (cx231xx) MCE IR",
},
[MULTIFUNCTION] = {
.mce_gen2 = 1,
.ir_intfnum = 2,
},
[TIVO_KIT] = {
.mce_gen2 = 1,
.rc_map = RC_MAP_TIVO,
},
};
static struct usb_device_id mceusb_dev_table[] = {
/* Original Microsoft MCE IR Transceiver (often HP-branded) */
{ USB_DEVICE(VENDOR_MICROSOFT, 0x006d),
.driver_info = MCE_GEN1 },
/* Philips Infrared Transceiver - Sahara branded */
{ USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
/* Philips Infrared Transceiver - HP branded */
{ USB_DEVICE(VENDOR_PHILIPS, 0x060c),
.driver_info = MCE_GEN2_TX_INV },
/* Philips SRM5100 */
{ USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
/* Philips Infrared Transceiver - Omaura */
{ USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
/* Philips Infrared Transceiver - Spinel plus */
{ USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
/* Philips eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
/* Philips/Spinel plus IR transceiver for ASUS */
{ USB_DEVICE(VENDOR_PHILIPS, 0x206c) },
/* Philips/Spinel plus IR transceiver for ASUS */
{ USB_DEVICE(VENDOR_PHILIPS, 0x2088) },
/* Philips IR transceiver (Dell branded) */
{ USB_DEVICE(VENDOR_PHILIPS, 0x2093) },
/* Realtek MCE IR Receiver and card reader */
{ USB_DEVICE(VENDOR_REALTEK, 0x0161),
.driver_info = MULTIFUNCTION },
/* SMK/Toshiba G83C0004D410 */
{ USB_DEVICE(VENDOR_SMK, 0x031d),
.driver_info = MCE_GEN2_TX_INV },
/* SMK eHome Infrared Transceiver (Sony VAIO) */
{ USB_DEVICE(VENDOR_SMK, 0x0322),
.driver_info = MCE_GEN2_TX_INV },
/* bundled with Hauppauge PVR-150 */
{ USB_DEVICE(VENDOR_SMK, 0x0334),
.driver_info = MCE_GEN2_TX_INV },
/* SMK eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_SMK, 0x0338) },
/* SMK/I-O Data GV-MC7/RCKIT Receiver */
{ USB_DEVICE(VENDOR_SMK, 0x0353),
.driver_info = MCE_GEN2_NO_TX },
/* Tatung eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_TATUNG, 0x9150) },
/* Shuttle eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
/* Shuttle eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
/* Gateway eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
/* Mitsumi */
{ USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
/* Topseed eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_TOPSEED, 0x0001),
.driver_info = MCE_GEN2_TX_INV },
/* Topseed HP eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_TOPSEED, 0x0006),
.driver_info = MCE_GEN2_TX_INV },
/* Topseed eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_TOPSEED, 0x0007),
.driver_info = MCE_GEN2_TX_INV },
/* Topseed eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_TOPSEED, 0x0008),
.driver_info = MCE_GEN3 },
/* Topseed eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_TOPSEED, 0x000a),
.driver_info = MCE_GEN2_TX_INV },
/* Topseed eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_TOPSEED, 0x0011),
.driver_info = MCE_GEN3 },
/* Ricavision internal Infrared Transceiver */
{ USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
/* Itron ione Libra Q-11 */
{ USB_DEVICE(VENDOR_ITRON, 0x7002) },
/* FIC eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_FIC, 0x9242) },
/* LG eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_LG, 0x9803) },
/* Microsoft MCE Infrared Transceiver */
{ USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
/* Formosa eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
/* Formosa21 / eHome Infrared Receiver */
{ USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
/* Formosa aim / Trust MCE Infrared Receiver */
{ USB_DEVICE(VENDOR_FORMOSA, 0xe017),
.driver_info = MCE_GEN2_NO_TX },
/* Formosa Industrial Computing / Beanbag Emulation Device */
{ USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
/* Formosa21 / eHome Infrared Receiver */
{ USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
/* Formosa Industrial Computing AIM IR605/A */
{ USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
/* Formosa Industrial Computing */
{ USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
/* Fintek eHome Infrared Transceiver (HP branded) */
{ USB_DEVICE(VENDOR_FINTEK, 0x5168) },
/* Fintek eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_FINTEK, 0x0602) },
/* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
{ USB_DEVICE(VENDOR_FINTEK, 0x0702) },
/* Pinnacle Remote Kit */
{ USB_DEVICE(VENDOR_PINNACLE, 0x0225),
.driver_info = MCE_GEN3 },
/* Elitegroup Computer Systems IR */
{ USB_DEVICE(VENDOR_ECS, 0x0f38) },
/* Wistron Corp. eHome Infrared Receiver */
{ USB_DEVICE(VENDOR_WISTRON, 0x0002) },
/* Compro K100 */
{ USB_DEVICE(VENDOR_COMPRO, 0x3020) },
/* Compro K100 v2 */
{ USB_DEVICE(VENDOR_COMPRO, 0x3082) },
/* Northstar Systems, Inc. eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
/* TiVo PC IR Receiver */
{ USB_DEVICE(VENDOR_TIVO, 0x2000),
.driver_info = TIVO_KIT },
/* Conexant Hybrid TV "Shelby" Polaris SDK */
{ USB_DEVICE(VENDOR_CONEXANT, 0x58a1),
.driver_info = POLARIS_EVK },
/* Conexant Hybrid TV RDU253S Polaris */
{ USB_DEVICE(VENDOR_CONEXANT, 0x58a5),
.driver_info = CX_HYBRID_TV },
/* Terminating entry */
{ }
};
/* data structure for each usb transceiver */
struct mceusb_dev {
/* ir-core bits */
struct rc_dev *rc;
/* optional features we can enable */
bool carrier_report_enabled;
bool learning_enabled;
/* core device bits */
struct device *dev;
/* usb */
struct usb_device *usbdev;
struct urb *urb_in;
struct usb_endpoint_descriptor *usb_ep_in;
struct usb_endpoint_descriptor *usb_ep_out;
/* buffers and dma */
unsigned char *buf_in;
unsigned int len_in;
dma_addr_t dma_in;
dma_addr_t dma_out;
enum {
CMD_HEADER = 0,
SUBCMD,
CMD_DATA,
PARSE_IRDATA,
} parser_state;
u8 cmd, rem; /* Remaining IR data bytes in packet */
struct {
u32 connected:1;
u32 tx_mask_normal:1;
u32 microsoft_gen1:1;
u32 no_tx:1;
} flags;
/* transmit support */
int send_flags;
u32 carrier;
unsigned char tx_mask;
char name[128];
char phys[64];
enum mceusb_model_type model;
};
/*
* MCE Device Command Strings
* Device command responses vary from device to device...
* - DEVICE_RESET resets the hardware to its default state
* - GET_REVISION fetches the hardware/software revision, common
* replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42
* - GET_CARRIER_FREQ gets the carrier mode and frequency of the
* device, with replies in the form of 9f 06 MM FF, where MM is 0-3,
* meaning clk of 10000000, 2500000, 625000 or 156250, and FF is
* ((clk / frequency) - 1)
* - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us,
* response in the form of 9f 0c msb lsb
* - GET_TX_BITMASK fetches the transmitter bitmask, replies in
* the form of 9f 08 bm, where bm is the bitmask
* - GET_RX_SENSOR fetches the RX sensor setting -- long-range
* general use one or short-range learning one, in the form of
* 9f 14 ss, where ss is either 01 for long-range or 02 for short
* - SET_CARRIER_FREQ sets a new carrier mode and frequency
* - SET_TX_BITMASK sets the transmitter bitmask
* - SET_RX_TIMEOUT sets the receiver timeout
* - SET_RX_SENSOR sets which receiver sensor to use
*/
static char DEVICE_RESET[] = {MCE_COMMAND_NULL, MCE_HW_CMD_HEADER,
MCE_CMD_DEVICE_RESET};
static char GET_REVISION[] = {MCE_HW_CMD_HEADER, MCE_CMD_G_REVISION};
static char GET_UNKNOWN[] = {MCE_HW_CMD_HEADER, MCE_CMD_UNKNOWN7};
static char GET_UNKNOWN2[] = {MCE_COMMAND_HEADER, MCE_CMD_UNKNOWN2};
static char GET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER, MCE_CMD_G_CARRIER};
static char GET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TIMEOUT};
static char GET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TXMASK};
static char GET_RX_SENSOR[] = {MCE_COMMAND_HEADER, MCE_CMD_G_RXSENSOR};
/* sub in desired values in lower byte or bytes for full command */
/* FIXME: make use of these for transmit.
static char SET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER,
MCE_CMD_S_CARRIER, 0x00, 0x00};
static char SET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_S_TXMASK, 0x00};
static char SET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER,
MCE_CMD_S_TIMEOUT, 0x00, 0x00};
static char SET_RX_SENSOR[] = {MCE_COMMAND_HEADER,
MCE_CMD_S_RXSENSOR, 0x00};
*/
static int mceusb_cmdsize(u8 cmd, u8 subcmd)
{
int datasize = 0;
switch (cmd) {
case MCE_COMMAND_NULL:
if (subcmd == MCE_HW_CMD_HEADER)
datasize = 1;
break;
case MCE_HW_CMD_HEADER:
switch (subcmd) {
case MCE_CMD_G_REVISION:
datasize = 2;
break;
}
case MCE_COMMAND_HEADER:
switch (subcmd) {
case MCE_CMD_UNKNOWN:
case MCE_CMD_S_CARRIER:
case MCE_CMD_S_TIMEOUT:
case MCE_RSP_PULSE_COUNT:
datasize = 2;
break;
case MCE_CMD_SIG_END:
case MCE_CMD_S_TXMASK:
case MCE_CMD_S_RXSENSOR:
datasize = 1;
break;
}
}
return datasize;
}
static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
int offset, int len, bool out)
{
char codes[USB_BUFLEN * 3 + 1];
char inout[9];
u8 cmd, subcmd, data1, data2;
struct device *dev = ir->dev;
int i, start, skip = 0;
if (!debug)
return;
/* skip meaningless 0xb1 0x60 header bytes on orig receiver */
if (ir->flags.microsoft_gen1 && !out && !offset)
skip = 2;
if (len <= skip)
return;
for (i = 0; i < len && i < USB_BUFLEN; i++)
snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff);
dev_info(dev, "%sx data: %s(length=%d)\n",
(out ? "t" : "r"), codes, len);
if (out)
strcpy(inout, "Request\0");
else
strcpy(inout, "Got\0");
start = offset + skip;
cmd = buf[start] & 0xff;
subcmd = buf[start + 1] & 0xff;
data1 = buf[start + 2] & 0xff;
data2 = buf[start + 3] & 0xff;
switch (cmd) {
case MCE_COMMAND_NULL:
if ((subcmd == MCE_HW_CMD_HEADER) &&
(data1 == MCE_CMD_DEVICE_RESET))
dev_info(dev, "Device reset requested\n");
else
dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
cmd, subcmd);
break;
case MCE_HW_CMD_HEADER:
switch (subcmd) {
case MCE_CMD_G_REVISION:
if (len == 2)
dev_info(dev, "Get hw/sw rev?\n");
else
dev_info(dev, "hw/sw rev 0x%02x 0x%02x "
"0x%02x 0x%02x\n", data1, data2,
buf[start + 4], buf[start + 5]);
break;
case MCE_CMD_DEVICE_RESET:
dev_info(dev, "Device reset requested\n");
break;
case MCE_RSP_CMD_INVALID:
dev_info(dev, "Previous command not supported\n");
break;
case MCE_CMD_UNKNOWN7:
case MCE_CMD_UNKNOWN9:
default:
dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
cmd, subcmd);
break;
}
break;
case MCE_COMMAND_HEADER:
switch (subcmd) {
case MCE_CMD_SIG_END:
dev_info(dev, "End of signal\n");
break;
case MCE_CMD_PING:
dev_info(dev, "Ping\n");
break;
case MCE_CMD_UNKNOWN:
dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
data1, data2);
break;
case MCE_CMD_S_CARRIER:
dev_info(dev, "%s carrier mode and freq of "
"0x%02x 0x%02x\n", inout, data1, data2);
break;
case MCE_CMD_G_CARRIER:
dev_info(dev, "Get carrier mode and freq\n");
break;
case MCE_CMD_S_TXMASK:
dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
inout, data1);
break;
case MCE_CMD_S_TIMEOUT:
/* value is in units of 50us, so x*50/1000 ms */
dev_info(dev, "%s receive timeout of %d ms\n",
inout,
((data1 << 8) | data2) * MCE_TIME_UNIT / 1000);
break;
case MCE_CMD_G_TIMEOUT:
dev_info(dev, "Get receive timeout\n");
break;
case MCE_CMD_G_TXMASK:
dev_info(dev, "Get transmit blaster mask\n");
break;
case MCE_CMD_S_RXSENSOR:
dev_info(dev, "%s %s-range receive sensor in use\n",
inout, data1 == 0x02 ? "short" : "long");
break;
case MCE_CMD_G_RXSENSOR:
/* aka MCE_RSP_PULSE_COUNT */
if (out)
dev_info(dev, "Get receive sensor\n");
else if (ir->learning_enabled)
dev_info(dev, "RX pulse count: %d\n",
((data1 << 8) | data2));
break;
case MCE_RSP_CMD_INVALID:
dev_info(dev, "Error! Hardware is likely wedged...\n");
break;
case MCE_CMD_UNKNOWN2:
case MCE_CMD_UNKNOWN3:
case MCE_CMD_UNKNOWN5:
default:
dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
cmd, subcmd);
break;
}
break;
default:
break;
}
if (cmd == MCE_IRDATA_TRAILER)
dev_info(dev, "End of raw IR data\n");
else if ((cmd != MCE_COMMAND_HEADER) &&
((cmd & MCE_COMMAND_MASK) == MCE_COMMAND_IRDATA))
dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem);
}
static void mce_async_callback(struct urb *urb, struct pt_regs *regs)
{
struct mceusb_dev *ir;
int len;
if (!urb)
return;
ir = urb->context;
if (ir) {
len = urb->actual_length;
mce_dbg(ir->dev, "callback called (status=%d len=%d)\n",
urb->status, len);
mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true);
}
/* the transfer buffer and urb were allocated in mce_request_packet */
kfree(urb->transfer_buffer);
usb_free_urb(urb);
}
/* request incoming or send outgoing usb packet - used to initialize remote */
static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data,
int size, int urb_type)
{
int res, pipe;
struct urb *async_urb;
struct device *dev = ir->dev;
unsigned char *async_buf;
if (urb_type == MCEUSB_TX) {
async_urb = usb_alloc_urb(0, GFP_KERNEL);
if (unlikely(!async_urb)) {
dev_err(dev, "Error, couldn't allocate urb!\n");
return;
}
async_buf = kzalloc(size, GFP_KERNEL);
if (!async_buf) {
dev_err(dev, "Error, couldn't allocate buf!\n");
usb_free_urb(async_urb);
return;
}
/* outbound data */
pipe = usb_sndintpipe(ir->usbdev,
ir->usb_ep_out->bEndpointAddress);
usb_fill_int_urb(async_urb, ir->usbdev, pipe,
async_buf, size, (usb_complete_t)mce_async_callback,
ir, ir->usb_ep_out->bInterval);
memcpy(async_buf, data, size);
} else if (urb_type == MCEUSB_RX) {
/* standard request */
async_urb = ir->urb_in;
ir->send_flags = RECV_FLAG_IN_PROGRESS;
} else {
dev_err(dev, "Error! Unknown urb type %d\n", urb_type);
return;
}
mce_dbg(dev, "receive request called (size=%#x)\n", size);
async_urb->transfer_buffer_length = size;
async_urb->dev = ir->usbdev;
res = usb_submit_urb(async_urb, GFP_ATOMIC);
if (res) {
mce_dbg(dev, "receive request FAILED! (res=%d)\n", res);
return;
}
mce_dbg(dev, "receive request complete (res=%d)\n", res);
}
static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
{
mce_request_packet(ir, data, size, MCEUSB_TX);
}
static void mce_flush_rx_buffer(struct mceusb_dev *ir, int size)
{
mce_request_packet(ir, NULL, size, MCEUSB_RX);
}
/* Send data out the IR blaster port(s) */
static int mceusb_tx_ir(struct rc_dev *dev, int *txbuf, u32 n)
{
struct mceusb_dev *ir = dev->priv;
int i, ret = 0;
int count, cmdcount = 0;
unsigned char *cmdbuf; /* MCE command buffer */
long signal_duration = 0; /* Singnal length in us */
struct timeval start_time, end_time;
do_gettimeofday(&start_time);
count = n / sizeof(int);
cmdbuf = kzalloc(sizeof(int) * MCE_CMDBUF_SIZE, GFP_KERNEL);
if (!cmdbuf)
return -ENOMEM;
/* MCE tx init header */
cmdbuf[cmdcount++] = MCE_COMMAND_HEADER;
cmdbuf[cmdcount++] = MCE_CMD_S_TXMASK;
cmdbuf[cmdcount++] = ir->tx_mask;
/* Generate mce packet data */
for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
signal_duration += txbuf[i];
txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
/* Insert mce packet header every 4th entry */
if ((cmdcount < MCE_CMDBUF_SIZE) &&
(cmdcount - MCE_TX_HEADER_LENGTH) %
MCE_CODE_LENGTH == 0)
cmdbuf[cmdcount++] = MCE_IRDATA_HEADER;
/* Insert mce packet data */
if (cmdcount < MCE_CMDBUF_SIZE)
cmdbuf[cmdcount++] =
(txbuf[i] < MCE_PULSE_BIT ?
txbuf[i] : MCE_MAX_PULSE_LENGTH) |
(i & 1 ? 0x00 : MCE_PULSE_BIT);
else {
ret = -EINVAL;
goto out;
}
} while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
(txbuf[i] -= MCE_MAX_PULSE_LENGTH));
}
/* Fix packet length in last header */
cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] =
MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) %
MCE_CODE_LENGTH - 1;
/* Check if we have room for the empty packet at the end */
if (cmdcount >= MCE_CMDBUF_SIZE) {
ret = -EINVAL;
goto out;
}
/* All mce commands end with an empty packet (0x80) */
cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER;
/* Transmit the command to the mce device */
mce_async_out(ir, cmdbuf, cmdcount);
/*
* The lircd gap calculation expects the write function to
* wait the time it takes for the ircommand to be sent before
* it returns.
*/
do_gettimeofday(&end_time);
signal_duration -= (end_time.tv_usec - start_time.tv_usec) +
(end_time.tv_sec - start_time.tv_sec) * 1000000;
/* delay with the closest number of ticks */
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(usecs_to_jiffies(signal_duration));
out:
kfree(cmdbuf);
return ret ? ret : n;
}
/* Sets active IR outputs -- mce devices typically have two */
static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask)
{
struct mceusb_dev *ir = dev->priv;
if (ir->flags.tx_mask_normal)
ir->tx_mask = mask;
else
ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?
mask ^ MCE_DEFAULT_TX_MASK : mask) << 1;
return 0;
}
/* Sets the send carrier frequency and mode */
static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier)
{
struct mceusb_dev *ir = dev->priv;
int clk = 10000000;
int prescaler = 0, divisor = 0;
unsigned char cmdbuf[4] = { MCE_COMMAND_HEADER,
MCE_CMD_S_CARRIER, 0x00, 0x00 };
/* Carrier has changed */
if (ir->carrier != carrier) {
if (carrier == 0) {
ir->carrier = carrier;
cmdbuf[2] = MCE_CMD_SIG_END;
cmdbuf[3] = MCE_IRDATA_TRAILER;
mce_dbg(ir->dev, "%s: disabling carrier "
"modulation\n", __func__);
mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
return carrier;
}
for (prescaler = 0; prescaler < 4; ++prescaler) {
divisor = (clk >> (2 * prescaler)) / carrier;
if (divisor <= 0xff) {
ir->carrier = carrier;
cmdbuf[2] = prescaler;
cmdbuf[3] = divisor;
mce_dbg(ir->dev, "%s: requesting %u HZ "
"carrier\n", __func__, carrier);
/* Transmit new carrier to mce device */
mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
return carrier;
}
}
return -EINVAL;
}
return carrier;
}
/*
* We don't do anything but print debug spew for many of the command bits
* we receive from the hardware, but some of them are useful information
* we want to store so that we can use them.
*/
static void mceusb_handle_command(struct mceusb_dev *ir, int index)
{
u8 hi = ir->buf_in[index + 1] & 0xff;
u8 lo = ir->buf_in[index + 2] & 0xff;
switch (ir->buf_in[index]) {
/* 2-byte return value commands */
case MCE_CMD_S_TIMEOUT:
ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT);
break;
/* 1-byte return value commands */
case MCE_CMD_S_TXMASK:
ir->tx_mask = hi;
break;
case MCE_CMD_S_RXSENSOR:
ir->learning_enabled = (hi == 0x02);
break;
default:
break;
}
}
static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
{
DEFINE_IR_RAW_EVENT(rawir);
int i = 0;
/* skip meaningless 0xb1 0x60 header bytes on orig receiver */
if (ir->flags.microsoft_gen1)
i = 2;
/* if there's no data, just return now */
if (buf_len <= i)
return;
for (; i < buf_len; i++) {
switch (ir->parser_state) {
case SUBCMD:
ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]);
mceusb_dev_printdata(ir, ir->buf_in, i - 1,
ir->rem + 2, false);
mceusb_handle_command(ir, i);
ir->parser_state = CMD_DATA;
break;
case PARSE_IRDATA:
ir->rem--;
init_ir_raw_event(&rawir);
rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
* US_TO_NS(MCE_TIME_UNIT);
mce_dbg(ir->dev, "Storing %s with duration %d\n",
rawir.pulse ? "pulse" : "space",
rawir.duration);
ir_raw_event_store_with_filter(ir->rc, &rawir);
break;
case CMD_DATA:
ir->rem--;
break;
case CMD_HEADER:
/* decode mce packets of the form (84),AA,BB,CC,DD */
/* IR data packets can span USB messages - rem */
ir->cmd = ir->buf_in[i];
if ((ir->cmd == MCE_COMMAND_HEADER) ||
((ir->cmd & MCE_COMMAND_MASK) !=
MCE_COMMAND_IRDATA)) {
ir->parser_state = SUBCMD;
continue;
}
ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
mceusb_dev_printdata(ir, ir->buf_in,
i, ir->rem + 1, false);
if (ir->rem)
ir->parser_state = PARSE_IRDATA;
else
ir_raw_event_reset(ir->rc);
break;
}
if (ir->parser_state != CMD_HEADER && !ir->rem)
ir->parser_state = CMD_HEADER;
}
mce_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n");
ir_raw_event_handle(ir->rc);
}
static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
{
struct mceusb_dev *ir;
int buf_len;
if (!urb)
return;
ir = urb->context;
if (!ir) {
usb_unlink_urb(urb);
return;
}
buf_len = urb->actual_length;
if (ir->send_flags == RECV_FLAG_IN_PROGRESS) {
ir->send_flags = SEND_FLAG_COMPLETE;
mce_dbg(ir->dev, "setup answer received %d bytes\n",
buf_len);
}
switch (urb->status) {
/* success */
case 0:
mceusb_process_ir_data(ir, buf_len);
break;
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
usb_unlink_urb(urb);
return;
case -EPIPE:
default:
mce_dbg(ir->dev, "Error: urb status = %d\n", urb->status);
break;
}
usb_submit_urb(urb, GFP_ATOMIC);
}
static void mceusb_gen1_init(struct mceusb_dev *ir)
{
int ret;
struct device *dev = ir->dev;
char *data;
data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
if (!data) {
dev_err(dev, "%s: memory allocation failed!\n", __func__);
return;
}
/*
* This is a strange one. Windows issues a set address to the device
* on the receive control pipe and expect a certain value pair back
*/
ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
data, USB_CTRL_MSG_SZ, HZ * 3);
mce_dbg(dev, "%s - ret = %d\n", __func__, ret);
mce_dbg(dev, "%s - data[0] = %d, data[1] = %d\n",
__func__, data[0], data[1]);
/* set feature: bit rate 38400 bps */
ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
0xc04e, 0x0000, NULL, 0, HZ * 3);
mce_dbg(dev, "%s - ret = %d\n", __func__, ret);
/* bRequest 4: set char length to 8 bits */
ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
4, USB_TYPE_VENDOR,
0x0808, 0x0000, NULL, 0, HZ * 3);
mce_dbg(dev, "%s - retB = %d\n", __func__, ret);
/* bRequest 2: set handshaking to use DTR/DSR */
ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
2, USB_TYPE_VENDOR,
0x0000, 0x0100, NULL, 0, HZ * 3);
mce_dbg(dev, "%s - retC = %d\n", __func__, ret);
/* device reset */
mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
/* get hw/sw revision? */
mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
kfree(data);
};
static void mceusb_gen2_init(struct mceusb_dev *ir)
{
/* device reset */
mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
/* get hw/sw revision? */
mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
/* unknown what the next two actually return... */
mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN));
mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
}
static void mceusb_get_parameters(struct mceusb_dev *ir)
{
/* get the carrier and frequency */
mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
if (!ir->flags.no_tx)
/* get the transmitter bitmask */
mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
/* get receiver timeout value */
mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
/* get receiver sensor setting */
mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
}
static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
{
struct device *dev = ir->dev;
struct rc_dev *rc;
int ret;
rc = rc_allocate_device();
if (!rc) {
dev_err(dev, "remote dev allocation failed\n");
goto out;
}
snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",
mceusb_model[ir->model].name ?
mceusb_model[ir->model].name :
"Media Center Ed. eHome Infrared Remote Transceiver",
le16_to_cpu(ir->usbdev->descriptor.idVendor),
le16_to_cpu(ir->usbdev->descriptor.idProduct));
usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
rc->input_name = ir->name;
rc->input_phys = ir->phys;
usb_to_input_id(ir->usbdev, &rc->input_id);
rc->dev.parent = dev;
rc->priv = ir;
rc->driver_type = RC_DRIVER_IR_RAW;
rc->allowed_protos = RC_TYPE_ALL;
rc->timeout = MS_TO_NS(100);
if (!ir->flags.no_tx) {
rc->s_tx_mask = mceusb_set_tx_mask;
rc->s_tx_carrier = mceusb_set_tx_carrier;
rc->tx_ir = mceusb_tx_ir;
}
rc->driver_name = DRIVER_NAME;
rc->map_name = mceusb_model[ir->model].rc_map ?
mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE;
ret = rc_register_device(rc);
if (ret < 0) {
dev_err(dev, "remote dev registration failed\n");
goto out;
}
return rc;
out:
rc_free_device(rc);
return NULL;
}
static int __devinit mceusb_dev_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *dev = interface_to_usbdev(intf);
struct usb_host_interface *idesc;
struct usb_endpoint_descriptor *ep = NULL;
struct usb_endpoint_descriptor *ep_in = NULL;
struct usb_endpoint_descriptor *ep_out = NULL;
struct mceusb_dev *ir = NULL;
int pipe, maxp, i;
char buf[63], name[128] = "";
enum mceusb_model_type model = id->driver_info;
bool is_gen3;
bool is_microsoft_gen1;
bool tx_mask_normal;
int ir_intfnum;
mce_dbg(&intf->dev, "%s called\n", __func__);
idesc = intf->cur_altsetting;
is_gen3 = mceusb_model[model].mce_gen3;
is_microsoft_gen1 = mceusb_model[model].mce_gen1;
tx_mask_normal = mceusb_model[model].tx_mask_normal;
ir_intfnum = mceusb_model[model].ir_intfnum;
/* There are multi-function devices with non-IR interfaces */
if (idesc->desc.bInterfaceNumber != ir_intfnum)
return -ENODEV;
/* step through the endpoints to find first bulk in and out endpoint */
for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
ep = &idesc->endpoint[i].desc;
if ((ep_in == NULL)
&& ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
== USB_DIR_IN)
&& (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
== USB_ENDPOINT_XFER_BULK)
|| ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
== USB_ENDPOINT_XFER_INT))) {
ep_in = ep;
ep_in->bmAttributes = USB_ENDPOINT_XFER_INT;
ep_in->bInterval = 1;
mce_dbg(&intf->dev, "acceptable inbound endpoint "
"found\n");
}
if ((ep_out == NULL)
&& ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
== USB_DIR_OUT)
&& (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
== USB_ENDPOINT_XFER_BULK)
|| ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
== USB_ENDPOINT_XFER_INT))) {
ep_out = ep;
ep_out->bmAttributes = USB_ENDPOINT_XFER_INT;
ep_out->bInterval = 1;
mce_dbg(&intf->dev, "acceptable outbound endpoint "
"found\n");
}
}
if (ep_in == NULL) {
mce_dbg(&intf->dev, "inbound and/or endpoint not found\n");
return -ENODEV;
}
pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
if (!ir)
goto mem_alloc_fail;
ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
if (!ir->buf_in)
goto buf_in_alloc_fail;
ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
if (!ir->urb_in)
goto urb_in_alloc_fail;
ir->usbdev = dev;
ir->dev = &intf->dev;
ir->len_in = maxp;
ir->flags.microsoft_gen1 = is_microsoft_gen1;
ir->flags.tx_mask_normal = tx_mask_normal;
ir->flags.no_tx = mceusb_model[model].no_tx;
ir->model = model;
/* Saving usb interface data for use by the transmitter routine */
ir->usb_ep_in = ep_in;
ir->usb_ep_out = ep_out;
if (dev->descriptor.iManufacturer
&& usb_string(dev, dev->descriptor.iManufacturer,
buf, sizeof(buf)) > 0)
strlcpy(name, buf, sizeof(name));
if (dev->descriptor.iProduct
&& usb_string(dev, dev->descriptor.iProduct,
buf, sizeof(buf)) > 0)
snprintf(name + strlen(name), sizeof(name) - strlen(name),
" %s", buf);
ir->rc = mceusb_init_rc_dev(ir);
if (!ir->rc)
goto rc_dev_fail;
/* wire up inbound data handler */
usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in,
maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval);
ir->urb_in->transfer_dma = ir->dma_in;
ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
/* flush buffers on the device */
mce_dbg(&intf->dev, "Flushing receive buffers\n");
mce_flush_rx_buffer(ir, maxp);
/* initialize device */
if (ir->flags.microsoft_gen1)
mceusb_gen1_init(ir);
else if (!is_gen3)
mceusb_gen2_init(ir);
mceusb_get_parameters(ir);
if (!ir->flags.no_tx)
mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);
usb_set_intfdata(intf, ir);
dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name,
dev->bus->busnum, dev->devnum);
return 0;
/* Error-handling path */
rc_dev_fail:
usb_free_urb(ir->urb_in);
urb_in_alloc_fail:
usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
buf_in_alloc_fail:
kfree(ir);
mem_alloc_fail:
dev_err(&intf->dev, "%s: device setup failed!\n", __func__);
return -ENOMEM;
}
static void __devexit mceusb_dev_disconnect(struct usb_interface *intf)
{
struct usb_device *dev = interface_to_usbdev(intf);
struct mceusb_dev *ir = usb_get_intfdata(intf);
usb_set_intfdata(intf, NULL);
if (!ir)
return;
ir->usbdev = NULL;
rc_unregister_device(ir->rc);
usb_kill_urb(ir->urb_in);
usb_free_urb(ir->urb_in);
usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
kfree(ir);
}
static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
{
struct mceusb_dev *ir = usb_get_intfdata(intf);
dev_info(ir->dev, "suspend\n");
usb_kill_urb(ir->urb_in);
return 0;
}
static int mceusb_dev_resume(struct usb_interface *intf)
{
struct mceusb_dev *ir = usb_get_intfdata(intf);
dev_info(ir->dev, "resume\n");
if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
return -EIO;
return 0;
}
static struct usb_driver mceusb_dev_driver = {
.name = DRIVER_NAME,
.probe = mceusb_dev_probe,
.disconnect = mceusb_dev_disconnect,
.suspend = mceusb_dev_suspend,
.resume = mceusb_dev_resume,
.reset_resume = mceusb_dev_resume,
.id_table = mceusb_dev_table
};
static int __init mceusb_dev_init(void)
{
int ret;
ret = usb_register(&mceusb_dev_driver);
if (ret < 0)
printk(KERN_ERR DRIVER_NAME
": usb register failed, result = %d\n", ret);
return ret;
}
static void __exit mceusb_dev_exit(void)
{
usb_deregister(&mceusb_dev_driver);
}
module_init(mceusb_dev_init);
module_exit(mceusb_dev_exit);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug enabled or not");
|