1 /* 2 * Intel Wireless WiMax Connection 2400m 3 * Host-Device protocol interface definitions 4 * 5 * 6 * Copyright (C) 2007-2008 Intel Corporation. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * * Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * * Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * * Neither the name of Intel Corporation nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 * 34 * 35 * Intel Corporation <linux-wimax@intel.com> 36 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> 37 * - Initial implementation 38 * 39 * 40 * This header defines the data structures and constants used to 41 * communicate with the device. 42 * 43 * BOOTMODE/BOOTROM/FIRMWARE UPLOAD PROTOCOL 44 * 45 * The firmware upload protocol is quite simple and only requires a 46 * handful of commands. See drivers/net/wimax/i2400m/fw.c for more 47 * details. 48 * 49 * The BCF data structure is for the firmware file header. 50 * 51 * 52 * THE DATA / CONTROL PROTOCOL 53 * 54 * This is the normal protocol spoken with the device once the 55 * firmware is uploaded. It transports data payloads and control 56 * messages back and forth. 57 * 58 * It consists 'messages' that pack one or more payloads each. The 59 * format is described in detail in drivers/net/wimax/i2400m/rx.c and 60 * tx.c. 61 * 62 * 63 * THE L3L4 PROTOCOL 64 * 65 * The term L3L4 refers to Layer 3 (the device), Layer 4 (the 66 * driver/host software). 67 * 68 * This is the control protocol used by the host to control the i2400m 69 * device (scan, connect, disconnect...). This is sent to / received 70 * as control frames. These frames consist of a header and zero or 71 * more TLVs with information. We call each control frame a "message". 72 * 73 * Each message is composed of: 74 * 75 * HEADER 76 * [TLV0 + PAYLOAD0] 77 * [TLV1 + PAYLOAD1] 78 * [...] 79 * [TLVN + PAYLOADN] 80 * 81 * The HEADER is defined by 'struct i2400m_l3l4_hdr'. The payloads are 82 * defined by a TLV structure (Type Length Value) which is a 'header' 83 * (struct i2400m_tlv_hdr) and then the payload. 84 * 85 * All integers are represented as Little Endian. 86 * 87 * - REQUESTS AND EVENTS 88 * 89 * The requests can be clasified as follows: 90 * 91 * COMMAND: implies a request from the host to the device requesting 92 * an action being performed. The device will reply with a 93 * message (with the same type as the command), status and 94 * no (TLV) payload. Execution of a command might cause 95 * events (of different type) to be sent later on as 96 * device's state changes. 97 * 98 * GET/SET: similar to COMMAND, but will not cause other 99 * EVENTs. The reply, in the case of GET, will contain 100 * TLVs with the requested information. 101 * 102 * EVENT: asynchronous messages sent from the device, maybe as a 103 * consequence of previous COMMANDs but disassociated from 104 * them. 105 * 106 * Only one request might be pending at the same time (ie: don't 107 * parallelize nor post another GET request before the previous 108 * COMMAND has been acknowledged with it's corresponding reply by the 109 * device). 110 * 111 * The different requests and their formats are described below: 112 * 113 * I2400M_MT_* Message types 114 * I2400M_MS_* Message status (for replies, events) 115 * i2400m_tlv_* TLVs 116 * 117 * data types are named 'struct i2400m_msg_OPNAME', OPNAME matching the 118 * operation. 119 */ 120 121 #ifndef __LINUX__WIMAX__I2400M_H__ 122 #define __LINUX__WIMAX__I2400M_H__ 123 124 #include <linux/types.h> 125 126 127 /* 128 * Host Device Interface (HDI) common to all busses 129 */ 130 131 /* Boot-mode (firmware upload mode) commands */ 132 133 /* Header for the firmware file */ 134 struct i2400m_bcf_hdr { 135 __le32 module_type; 136 __le32 header_len; 137 __le32 header_version; 138 __le32 module_id; 139 __le32 module_vendor; 140 __le32 date; /* BCD YYYMMDD */ 141 __le32 size; /* in dwords */ 142 __le32 key_size; /* in dwords */ 143 __le32 modulus_size; /* in dwords */ 144 __le32 exponent_size; /* in dwords */ 145 __u8 reserved[88]; 146 } __attribute__ ((packed)); 147 148 /* Boot mode opcodes */ 149 enum i2400m_brh_opcode { 150 I2400M_BRH_READ = 1, 151 I2400M_BRH_WRITE = 2, 152 I2400M_BRH_JUMP = 3, 153 I2400M_BRH_SIGNED_JUMP = 8, 154 I2400M_BRH_HASH_PAYLOAD_ONLY = 9, 155 }; 156 157 /* Boot mode command masks and stuff */ 158 enum i2400m_brh { 159 I2400M_BRH_SIGNATURE = 0xcbbc0000, 160 I2400M_BRH_SIGNATURE_MASK = 0xffff0000, 161 I2400M_BRH_SIGNATURE_SHIFT = 16, 162 I2400M_BRH_OPCODE_MASK = 0x0000000f, 163 I2400M_BRH_RESPONSE_MASK = 0x000000f0, 164 I2400M_BRH_RESPONSE_SHIFT = 4, 165 I2400M_BRH_DIRECT_ACCESS = 0x00000400, 166 I2400M_BRH_RESPONSE_REQUIRED = 0x00000200, 167 I2400M_BRH_USE_CHECKSUM = 0x00000100, 168 }; 169 170 171 /** 172 * i2400m_bootrom_header - Header for a boot-mode command 173 * 174 * @cmd: the above command descriptor 175 * @target_addr: where on the device memory should the action be performed. 176 * @data_size: for read/write, amount of data to be read/written 177 * @block_checksum: checksum value (if applicable) 178 * @payload: the beginning of data attached to this header 179 */ 180 struct i2400m_bootrom_header { 181 __le32 command; /* Compose with enum i2400_brh */ 182 __le32 target_addr; 183 __le32 data_size; 184 __le32 block_checksum; 185 char payload[0]; 186 } __attribute__ ((packed)); 187 188 189 /* 190 * Data / control protocol 191 */ 192 193 /* Packet types for the host-device interface */ 194 enum i2400m_pt { 195 I2400M_PT_DATA = 0, 196 I2400M_PT_CTRL, 197 I2400M_PT_TRACE, /* For device debug */ 198 I2400M_PT_RESET_WARM, /* device reset */ 199 I2400M_PT_RESET_COLD, /* USB[transport] reset, like reconnect */ 200 I2400M_PT_EDATA, /* Extended RX data */ 201 I2400M_PT_ILLEGAL 202 }; 203 204 205 /* 206 * Payload for a data packet 207 * 208 * This is prefixed to each and every outgoing DATA type. 209 */ 210 struct i2400m_pl_data_hdr { 211 __le32 reserved; 212 } __attribute__((packed)); 213 214 215 /* 216 * Payload for an extended data packet 217 * 218 * New in fw v1.4 219 * 220 * @reorder: if this payload has to be reorder or not (and how) 221 * @cs: the type of data in the packet, as defined per (802.16e 222 * T11.13.19.1). Currently only 2 (IPv4 packet) supported. 223 * 224 * This is prefixed to each and every INCOMING DATA packet. 225 */ 226 struct i2400m_pl_edata_hdr { 227 __le32 reorder; /* bits defined in i2400m_ro */ 228 __u8 cs; 229 __u8 reserved[11]; 230 } __attribute__((packed)); 231 232 enum i2400m_cs { 233 I2400M_CS_IPV4_0 = 0, 234 I2400M_CS_IPV4 = 2, 235 }; 236 237 enum i2400m_ro { 238 I2400M_RO_NEEDED = 0x01, 239 I2400M_RO_TYPE = 0x03, 240 I2400M_RO_TYPE_SHIFT = 1, 241 I2400M_RO_CIN = 0x0f, 242 I2400M_RO_CIN_SHIFT = 4, 243 I2400M_RO_FBN = 0x07ff, 244 I2400M_RO_FBN_SHIFT = 8, 245 I2400M_RO_SN = 0x07ff, 246 I2400M_RO_SN_SHIFT = 21, 247 }; 248 249 enum i2400m_ro_type { 250 I2400M_RO_TYPE_RESET = 0, 251 I2400M_RO_TYPE_PACKET, 252 I2400M_RO_TYPE_WS, 253 I2400M_RO_TYPE_PACKET_WS, 254 }; 255 256 257 /* Misc constants */ 258 enum { 259 I2400M_PL_ALIGN = 16, /* Payload data size alignment */ 260 I2400M_PL_SIZE_MAX = 0x3EFF, 261 I2400M_MAX_PLS_IN_MSG = 60, 262 /* protocol barkers: sync sequences; for notifications they 263 * are sent in groups of four. */ 264 I2400M_H2D_PREVIEW_BARKER = 0xcafe900d, 265 I2400M_COLD_RESET_BARKER = 0xc01dc01d, 266 I2400M_WARM_RESET_BARKER = 0x50f750f7, 267 I2400M_NBOOT_BARKER = 0xdeadbeef, 268 I2400M_SBOOT_BARKER = 0x0ff1c1a1, 269 I2400M_SBOOT_BARKER_6050 = 0x80000001, 270 I2400M_ACK_BARKER = 0xfeedbabe, 271 I2400M_D2H_MSG_BARKER = 0xbeefbabe, 272 }; 273 274 275 /* 276 * Hardware payload descriptor 277 * 278 * Bitfields encoded in a struct to enforce typing semantics. 279 * 280 * Look in rx.c and tx.c for a full description of the format. 281 */ 282 struct i2400m_pld { 283 __le32 val; 284 } __attribute__ ((packed)); 285 286 #define I2400M_PLD_SIZE_MASK 0x00003fff 287 #define I2400M_PLD_TYPE_SHIFT 16 288 #define I2400M_PLD_TYPE_MASK 0x000f0000 289 290 /* 291 * Header for a TX message or RX message 292 * 293 * @barker: preamble 294 * @size: used for management of the FIFO queue buffer; before 295 * sending, this is converted to be a real preamble. This 296 * indicates the real size of the TX message that starts at this 297 * point. If the highest bit is set, then this message is to be 298 * skipped. 299 * @sequence: sequence number of this message 300 * @offset: offset where the message itself starts -- see the comments 301 * in the file header about message header and payload descriptor 302 * alignment. 303 * @num_pls: number of payloads in this message 304 * @padding: amount of padding bytes at the end of the message to make 305 * it be of block-size aligned 306 * 307 * Look in rx.c and tx.c for a full description of the format. 308 */ 309 struct i2400m_msg_hdr { 310 union { 311 __le32 barker; 312 __u32 size; /* same size type as barker!! */ 313 }; 314 union { 315 __le32 sequence; 316 __u32 offset; /* same size type as barker!! */ 317 }; 318 __le16 num_pls; 319 __le16 rsv1; 320 __le16 padding; 321 __le16 rsv2; 322 struct i2400m_pld pld[0]; 323 } __attribute__ ((packed)); 324 325 326 327 /* 328 * L3/L4 control protocol 329 */ 330 331 enum { 332 /* Interface version */ 333 I2400M_L3L4_VERSION = 0x0100, 334 }; 335 336 /* Message types */ 337 enum i2400m_mt { 338 I2400M_MT_RESERVED = 0x0000, 339 I2400M_MT_INVALID = 0xffff, 340 I2400M_MT_REPORT_MASK = 0x8000, 341 342 I2400M_MT_GET_SCAN_RESULT = 0x4202, 343 I2400M_MT_SET_SCAN_PARAM = 0x4402, 344 I2400M_MT_CMD_RF_CONTROL = 0x4602, 345 I2400M_MT_CMD_SCAN = 0x4603, 346 I2400M_MT_CMD_CONNECT = 0x4604, 347 I2400M_MT_CMD_DISCONNECT = 0x4605, 348 I2400M_MT_CMD_EXIT_IDLE = 0x4606, 349 I2400M_MT_GET_LM_VERSION = 0x5201, 350 I2400M_MT_GET_DEVICE_INFO = 0x5202, 351 I2400M_MT_GET_LINK_STATUS = 0x5203, 352 I2400M_MT_GET_STATISTICS = 0x5204, 353 I2400M_MT_GET_STATE = 0x5205, 354 I2400M_MT_GET_MEDIA_STATUS = 0x5206, 355 I2400M_MT_SET_INIT_CONFIG = 0x5404, 356 I2400M_MT_CMD_INIT = 0x5601, 357 I2400M_MT_CMD_TERMINATE = 0x5602, 358 I2400M_MT_CMD_MODE_OF_OP = 0x5603, 359 I2400M_MT_CMD_RESET_DEVICE = 0x5604, 360 I2400M_MT_CMD_MONITOR_CONTROL = 0x5605, 361 I2400M_MT_CMD_ENTER_POWERSAVE = 0x5606, 362 I2400M_MT_GET_TLS_OPERATION_RESULT = 0x6201, 363 I2400M_MT_SET_EAP_SUCCESS = 0x6402, 364 I2400M_MT_SET_EAP_FAIL = 0x6403, 365 I2400M_MT_SET_EAP_KEY = 0x6404, 366 I2400M_MT_CMD_SEND_EAP_RESPONSE = 0x6602, 367 I2400M_MT_REPORT_SCAN_RESULT = 0xc002, 368 I2400M_MT_REPORT_STATE = 0xd002, 369 I2400M_MT_REPORT_POWERSAVE_READY = 0xd005, 370 I2400M_MT_REPORT_EAP_REQUEST = 0xe002, 371 I2400M_MT_REPORT_EAP_RESTART = 0xe003, 372 I2400M_MT_REPORT_ALT_ACCEPT = 0xe004, 373 I2400M_MT_REPORT_KEY_REQUEST = 0xe005, 374 }; 375 376 377 /* 378 * Message Ack Status codes 379 * 380 * When a message is replied-to, this status is reported. 381 */ 382 enum i2400m_ms { 383 I2400M_MS_DONE_OK = 0, 384 I2400M_MS_DONE_IN_PROGRESS = 1, 385 I2400M_MS_INVALID_OP = 2, 386 I2400M_MS_BAD_STATE = 3, 387 I2400M_MS_ILLEGAL_VALUE = 4, 388 I2400M_MS_MISSING_PARAMS = 5, 389 I2400M_MS_VERSION_ERROR = 6, 390 I2400M_MS_ACCESSIBILITY_ERROR = 7, 391 I2400M_MS_BUSY = 8, 392 I2400M_MS_CORRUPTED_TLV = 9, 393 I2400M_MS_UNINITIALIZED = 10, 394 I2400M_MS_UNKNOWN_ERROR = 11, 395 I2400M_MS_PRODUCTION_ERROR = 12, 396 I2400M_MS_NO_RF = 13, 397 I2400M_MS_NOT_READY_FOR_POWERSAVE = 14, 398 I2400M_MS_THERMAL_CRITICAL = 15, 399 I2400M_MS_MAX 400 }; 401 402 403 /** 404 * i2400m_tlv - enumeration of the different types of TLVs 405 * 406 * TLVs stand for type-length-value and are the header for a payload 407 * composed of almost anything. Each payload has a type assigned 408 * and a length. 409 */ 410 enum i2400m_tlv { 411 I2400M_TLV_L4_MESSAGE_VERSIONS = 129, 412 I2400M_TLV_SYSTEM_STATE = 141, 413 I2400M_TLV_MEDIA_STATUS = 161, 414 I2400M_TLV_RF_OPERATION = 162, 415 I2400M_TLV_RF_STATUS = 163, 416 I2400M_TLV_DEVICE_RESET_TYPE = 132, 417 I2400M_TLV_CONFIG_IDLE_PARAMETERS = 601, 418 I2400M_TLV_CONFIG_IDLE_TIMEOUT = 611, 419 I2400M_TLV_CONFIG_D2H_DATA_FORMAT = 614, 420 I2400M_TLV_CONFIG_DL_HOST_REORDER = 615, 421 }; 422 423 424 struct i2400m_tlv_hdr { 425 __le16 type; 426 __le16 length; /* payload's */ 427 __u8 pl[0]; 428 } __attribute__((packed)); 429 430 431 struct i2400m_l3l4_hdr { 432 __le16 type; 433 __le16 length; /* payload's */ 434 __le16 version; 435 __le16 resv1; 436 __le16 status; 437 __le16 resv2; 438 struct i2400m_tlv_hdr pl[0]; 439 } __attribute__((packed)); 440 441 442 /** 443 * i2400m_system_state - different states of the device 444 */ 445 enum i2400m_system_state { 446 I2400M_SS_UNINITIALIZED = 1, 447 I2400M_SS_INIT, 448 I2400M_SS_READY, 449 I2400M_SS_SCAN, 450 I2400M_SS_STANDBY, 451 I2400M_SS_CONNECTING, 452 I2400M_SS_WIMAX_CONNECTED, 453 I2400M_SS_DATA_PATH_CONNECTED, 454 I2400M_SS_IDLE, 455 I2400M_SS_DISCONNECTING, 456 I2400M_SS_OUT_OF_ZONE, 457 I2400M_SS_SLEEPACTIVE, 458 I2400M_SS_PRODUCTION, 459 I2400M_SS_CONFIG, 460 I2400M_SS_RF_OFF, 461 I2400M_SS_RF_SHUTDOWN, 462 I2400M_SS_DEVICE_DISCONNECT, 463 I2400M_SS_MAX, 464 }; 465 466 467 /** 468 * i2400m_tlv_system_state - report on the state of the system 469 * 470 * @state: see enum i2400m_system_state 471 */ 472 struct i2400m_tlv_system_state { 473 struct i2400m_tlv_hdr hdr; 474 __le32 state; 475 } __attribute__((packed)); 476 477 478 struct i2400m_tlv_l4_message_versions { 479 struct i2400m_tlv_hdr hdr; 480 __le16 major; 481 __le16 minor; 482 __le16 branch; 483 __le16 reserved; 484 } __attribute__((packed)); 485 486 487 struct i2400m_tlv_detailed_device_info { 488 struct i2400m_tlv_hdr hdr; 489 __u8 reserved1[400]; 490 __u8 mac_address[6]; 491 __u8 reserved2[2]; 492 } __attribute__((packed)); 493 494 495 enum i2400m_rf_switch_status { 496 I2400M_RF_SWITCH_ON = 1, 497 I2400M_RF_SWITCH_OFF = 2, 498 }; 499 500 struct i2400m_tlv_rf_switches_status { 501 struct i2400m_tlv_hdr hdr; 502 __u8 sw_rf_switch; /* 1 ON, 2 OFF */ 503 __u8 hw_rf_switch; /* 1 ON, 2 OFF */ 504 __u8 reserved[2]; 505 } __attribute__((packed)); 506 507 508 enum { 509 i2400m_rf_operation_on = 1, 510 i2400m_rf_operation_off = 2 511 }; 512 513 struct i2400m_tlv_rf_operation { 514 struct i2400m_tlv_hdr hdr; 515 __le32 status; /* 1 ON, 2 OFF */ 516 } __attribute__((packed)); 517 518 519 enum i2400m_tlv_reset_type { 520 I2400M_RESET_TYPE_COLD = 1, 521 I2400M_RESET_TYPE_WARM 522 }; 523 524 struct i2400m_tlv_device_reset_type { 525 struct i2400m_tlv_hdr hdr; 526 __le32 reset_type; 527 } __attribute__((packed)); 528 529 530 struct i2400m_tlv_config_idle_parameters { 531 struct i2400m_tlv_hdr hdr; 532 __le32 idle_timeout; /* 100 to 300000 ms [5min], 100 increments 533 * 0 disabled */ 534 __le32 idle_paging_interval; /* frames */ 535 } __attribute__((packed)); 536 537 538 enum i2400m_media_status { 539 I2400M_MEDIA_STATUS_LINK_UP = 1, 540 I2400M_MEDIA_STATUS_LINK_DOWN, 541 I2400M_MEDIA_STATUS_LINK_RENEW, 542 }; 543 544 struct i2400m_tlv_media_status { 545 struct i2400m_tlv_hdr hdr; 546 __le32 media_status; 547 } __attribute__((packed)); 548 549 550 /* New in v1.4 */ 551 struct i2400m_tlv_config_idle_timeout { 552 struct i2400m_tlv_hdr hdr; 553 __le32 timeout; /* 100 to 300000 ms [5min], 100 increments 554 * 0 disabled */ 555 } __attribute__((packed)); 556 557 /* New in v1.4 -- for backward compat, will be removed */ 558 struct i2400m_tlv_config_d2h_data_format { 559 struct i2400m_tlv_hdr hdr; 560 __u8 format; /* 0 old format, 1 enhanced */ 561 __u8 reserved[3]; 562 } __attribute__((packed)); 563 564 /* New in v1.4 */ 565 struct i2400m_tlv_config_dl_host_reorder { 566 struct i2400m_tlv_hdr hdr; 567 __u8 reorder; /* 0 disabled, 1 enabled */ 568 __u8 reserved[3]; 569 } __attribute__((packed)); 570 571 572 #endif /* #ifndef __LINUX__WIMAX__I2400M_H__ */ 573