2 * Intel Wireless WiMax Connection 2400m
3 * Host-Device protocol interface definitions
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35 * Intel Corporation <linux-wimax@intel.com>
36 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
37 * - Initial implementation
40 * This header defines the data structures and constants used to
41 * communicate with the device.
43 * BOOTMODE/BOOTROM/FIRMWARE UPLOAD PROTOCOL
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
49 * The BCF data structure is for the firmware file header.
52 * THE DATA / CONTROL PROTOCOL
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.
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
65 * The term L3L4 refers to Layer 3 (the device), Layer 4 (the
66 * driver/host software).
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".
73 * Each message is composed of:
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.
85 * All integers are represented as Little Endian.
87 * - REQUESTS AND EVENTS
89 * The requests can be clasified as follows:
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.
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.
102 * EVENT: asynchronous messages sent from the device, maybe as a
103 * consequence of previous COMMANDs but disassociated from
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
111 * The different requests and their formats are described below:
113 * I2400M_MT_* Message types
114 * I2400M_MS_* Message status (for replies, events)
117 * data types are named 'struct i2400m_msg_OPNAME', OPNAME matching the
121 #ifndef __LINUX__WIMAX__I2400M_H__
122 #define __LINUX__WIMAX__I2400M_H__
124 #include <linux/types.h>
128 * Host Device Interface (HDI) common to all busses
131 /* Boot-mode (firmware upload mode) commands */
133 /* Header for the firmware file */
134 struct i2400m_bcf_hdr {
137 __le32 header_version;
139 __le32 module_vendor;
140 __le32 date; /* BCD YYYMMDD */
142 __le32 key_size; /* in dwords */
143 __le32 modulus_size; /* in dwords */
144 __le32 exponent_size; /* in dwords */
146 } __attribute__ ((packed));
148 /* Boot mode opcodes */
149 enum i2400m_brh_opcode {
151 I2400M_BRH_WRITE = 2,
153 I2400M_BRH_SIGNED_JUMP = 8,
154 I2400M_BRH_HASH_PAYLOAD_ONLY = 9,
157 /* Boot mode command masks and stuff */
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,
171 /* Constants for bcf->module_id */
172 enum i2400m_bcf_mod_id {
173 /* Firmware file carries its own pokes -- pokes are a set of
174 * magical values that have to be written in certain memory
175 * addresses to get the device up and ready for firmware
176 * download when it is in non-signed boot mode. */
177 I2400M_BCF_MOD_ID_POKES = 0x000000001,
182 * i2400m_bootrom_header - Header for a boot-mode command
184 * @cmd: the above command descriptor
185 * @target_addr: where on the device memory should the action be performed.
186 * @data_size: for read/write, amount of data to be read/written
187 * @block_checksum: checksum value (if applicable)
188 * @payload: the beginning of data attached to this header
190 struct i2400m_bootrom_header {
191 __le32 command; /* Compose with enum i2400_brh */
194 __le32 block_checksum;
196 } __attribute__ ((packed));
200 * Data / control protocol
203 /* Packet types for the host-device interface */
207 I2400M_PT_TRACE, /* For device debug */
208 I2400M_PT_RESET_WARM, /* device reset */
209 I2400M_PT_RESET_COLD, /* USB[transport] reset, like reconnect */
210 I2400M_PT_EDATA, /* Extended RX data */
216 * Payload for a data packet
218 * This is prefixed to each and every outgoing DATA type.
220 struct i2400m_pl_data_hdr {
222 } __attribute__((packed));
226 * Payload for an extended data packet
230 * @reorder: if this payload has to be reorder or not (and how)
231 * @cs: the type of data in the packet, as defined per (802.16e
232 * T11.13.19.1). Currently only 2 (IPv4 packet) supported.
234 * This is prefixed to each and every INCOMING DATA packet.
236 struct i2400m_pl_edata_hdr {
237 __le32 reorder; /* bits defined in i2400m_ro */
240 } __attribute__((packed));
243 I2400M_CS_IPV4_0 = 0,
248 I2400M_RO_NEEDED = 0x01,
249 I2400M_RO_TYPE = 0x03,
250 I2400M_RO_TYPE_SHIFT = 1,
251 I2400M_RO_CIN = 0x0f,
252 I2400M_RO_CIN_SHIFT = 4,
253 I2400M_RO_FBN = 0x07ff,
254 I2400M_RO_FBN_SHIFT = 8,
255 I2400M_RO_SN = 0x07ff,
256 I2400M_RO_SN_SHIFT = 21,
259 enum i2400m_ro_type {
260 I2400M_RO_TYPE_RESET = 0,
261 I2400M_RO_TYPE_PACKET,
263 I2400M_RO_TYPE_PACKET_WS,
269 I2400M_PL_PAD = 16, /* Payload data size alignment */
270 I2400M_PL_SIZE_MAX = 0x3EFF,
271 I2400M_MAX_PLS_IN_MSG = 60,
272 /* protocol barkers: sync sequences; for notifications they
273 * are sent in groups of four. */
274 I2400M_H2D_PREVIEW_BARKER = 0xcafe900d,
275 I2400M_COLD_RESET_BARKER = 0xc01dc01d,
276 I2400M_WARM_RESET_BARKER = 0x50f750f7,
277 I2400M_NBOOT_BARKER = 0xdeadbeef,
278 I2400M_SBOOT_BARKER = 0x0ff1c1a1,
279 I2400M_ACK_BARKER = 0xfeedbabe,
280 I2400M_D2H_MSG_BARKER = 0xbeefbabe,
285 * Hardware payload descriptor
287 * Bitfields encoded in a struct to enforce typing semantics.
289 * Look in rx.c and tx.c for a full description of the format.
293 } __attribute__ ((packed));
295 #define I2400M_PLD_SIZE_MASK 0x00003fff
296 #define I2400M_PLD_TYPE_SHIFT 16
297 #define I2400M_PLD_TYPE_MASK 0x000f0000
300 * Header for a TX message or RX message
303 * @size: used for management of the FIFO queue buffer; before
304 * sending, this is converted to be a real preamble. This
305 * indicates the real size of the TX message that starts at this
306 * point. If the highest bit is set, then this message is to be
308 * @sequence: sequence number of this message
309 * @offset: offset where the message itself starts -- see the comments
310 * in the file header about message header and payload descriptor
312 * @num_pls: number of payloads in this message
313 * @padding: amount of padding bytes at the end of the message to make
314 * it be of block-size aligned
316 * Look in rx.c and tx.c for a full description of the format.
318 struct i2400m_msg_hdr {
321 __u32 size; /* same size type as barker!! */
325 __u32 offset; /* same size type as barker!! */
331 struct i2400m_pld pld[0];
332 } __attribute__ ((packed));
337 * L3/L4 control protocol
341 /* Interface version */
342 I2400M_L3L4_VERSION = 0x0100,
347 I2400M_MT_RESERVED = 0x0000,
348 I2400M_MT_INVALID = 0xffff,
349 I2400M_MT_REPORT_MASK = 0x8000,
351 I2400M_MT_GET_SCAN_RESULT = 0x4202,
352 I2400M_MT_SET_SCAN_PARAM = 0x4402,
353 I2400M_MT_CMD_RF_CONTROL = 0x4602,
354 I2400M_MT_CMD_SCAN = 0x4603,
355 I2400M_MT_CMD_CONNECT = 0x4604,
356 I2400M_MT_CMD_DISCONNECT = 0x4605,
357 I2400M_MT_CMD_EXIT_IDLE = 0x4606,
358 I2400M_MT_GET_LM_VERSION = 0x5201,
359 I2400M_MT_GET_DEVICE_INFO = 0x5202,
360 I2400M_MT_GET_LINK_STATUS = 0x5203,
361 I2400M_MT_GET_STATISTICS = 0x5204,
362 I2400M_MT_GET_STATE = 0x5205,
363 I2400M_MT_GET_MEDIA_STATUS = 0x5206,
364 I2400M_MT_SET_INIT_CONFIG = 0x5404,
365 I2400M_MT_CMD_INIT = 0x5601,
366 I2400M_MT_CMD_TERMINATE = 0x5602,
367 I2400M_MT_CMD_MODE_OF_OP = 0x5603,
368 I2400M_MT_CMD_RESET_DEVICE = 0x5604,
369 I2400M_MT_CMD_MONITOR_CONTROL = 0x5605,
370 I2400M_MT_CMD_ENTER_POWERSAVE = 0x5606,
371 I2400M_MT_GET_TLS_OPERATION_RESULT = 0x6201,
372 I2400M_MT_SET_EAP_SUCCESS = 0x6402,
373 I2400M_MT_SET_EAP_FAIL = 0x6403,
374 I2400M_MT_SET_EAP_KEY = 0x6404,
375 I2400M_MT_CMD_SEND_EAP_RESPONSE = 0x6602,
376 I2400M_MT_REPORT_SCAN_RESULT = 0xc002,
377 I2400M_MT_REPORT_STATE = 0xd002,
378 I2400M_MT_REPORT_POWERSAVE_READY = 0xd005,
379 I2400M_MT_REPORT_EAP_REQUEST = 0xe002,
380 I2400M_MT_REPORT_EAP_RESTART = 0xe003,
381 I2400M_MT_REPORT_ALT_ACCEPT = 0xe004,
382 I2400M_MT_REPORT_KEY_REQUEST = 0xe005,
387 * Message Ack Status codes
389 * When a message is replied-to, this status is reported.
392 I2400M_MS_DONE_OK = 0,
393 I2400M_MS_DONE_IN_PROGRESS = 1,
394 I2400M_MS_INVALID_OP = 2,
395 I2400M_MS_BAD_STATE = 3,
396 I2400M_MS_ILLEGAL_VALUE = 4,
397 I2400M_MS_MISSING_PARAMS = 5,
398 I2400M_MS_VERSION_ERROR = 6,
399 I2400M_MS_ACCESSIBILITY_ERROR = 7,
401 I2400M_MS_CORRUPTED_TLV = 9,
402 I2400M_MS_UNINITIALIZED = 10,
403 I2400M_MS_UNKNOWN_ERROR = 11,
404 I2400M_MS_PRODUCTION_ERROR = 12,
405 I2400M_MS_NO_RF = 13,
406 I2400M_MS_NOT_READY_FOR_POWERSAVE = 14,
407 I2400M_MS_THERMAL_CRITICAL = 15,
413 * i2400m_tlv - enumeration of the different types of TLVs
415 * TLVs stand for type-length-value and are the header for a payload
416 * composed of almost anything. Each payload has a type assigned
420 I2400M_TLV_L4_MESSAGE_VERSIONS = 129,
421 I2400M_TLV_SYSTEM_STATE = 141,
422 I2400M_TLV_MEDIA_STATUS = 161,
423 I2400M_TLV_RF_OPERATION = 162,
424 I2400M_TLV_RF_STATUS = 163,
425 I2400M_TLV_DEVICE_RESET_TYPE = 132,
426 I2400M_TLV_CONFIG_IDLE_PARAMETERS = 601,
427 I2400M_TLV_CONFIG_IDLE_TIMEOUT = 611,
428 I2400M_TLV_CONFIG_D2H_DATA_FORMAT = 614,
429 I2400M_TLV_CONFIG_DL_HOST_REORDER = 615,
433 struct i2400m_tlv_hdr {
435 __le16 length; /* payload's */
437 } __attribute__((packed));
440 struct i2400m_l3l4_hdr {
442 __le16 length; /* payload's */
447 struct i2400m_tlv_hdr pl[0];
448 } __attribute__((packed));
452 * i2400m_system_state - different states of the device
454 enum i2400m_system_state {
455 I2400M_SS_UNINITIALIZED = 1,
460 I2400M_SS_CONNECTING,
461 I2400M_SS_WIMAX_CONNECTED,
462 I2400M_SS_DATA_PATH_CONNECTED,
464 I2400M_SS_DISCONNECTING,
465 I2400M_SS_OUT_OF_ZONE,
466 I2400M_SS_SLEEPACTIVE,
467 I2400M_SS_PRODUCTION,
470 I2400M_SS_RF_SHUTDOWN,
471 I2400M_SS_DEVICE_DISCONNECT,
477 * i2400m_tlv_system_state - report on the state of the system
479 * @state: see enum i2400m_system_state
481 struct i2400m_tlv_system_state {
482 struct i2400m_tlv_hdr hdr;
484 } __attribute__((packed));
487 struct i2400m_tlv_l4_message_versions {
488 struct i2400m_tlv_hdr hdr;
493 } __attribute__((packed));
496 struct i2400m_tlv_detailed_device_info {
497 struct i2400m_tlv_hdr hdr;
501 } __attribute__((packed));
504 enum i2400m_rf_switch_status {
505 I2400M_RF_SWITCH_ON = 1,
506 I2400M_RF_SWITCH_OFF = 2,
509 struct i2400m_tlv_rf_switches_status {
510 struct i2400m_tlv_hdr hdr;
511 __u8 sw_rf_switch; /* 1 ON, 2 OFF */
512 __u8 hw_rf_switch; /* 1 ON, 2 OFF */
514 } __attribute__((packed));
518 i2400m_rf_operation_on = 1,
519 i2400m_rf_operation_off = 2
522 struct i2400m_tlv_rf_operation {
523 struct i2400m_tlv_hdr hdr;
524 __le32 status; /* 1 ON, 2 OFF */
525 } __attribute__((packed));
528 enum i2400m_tlv_reset_type {
529 I2400M_RESET_TYPE_COLD = 1,
530 I2400M_RESET_TYPE_WARM
533 struct i2400m_tlv_device_reset_type {
534 struct i2400m_tlv_hdr hdr;
536 } __attribute__((packed));
539 struct i2400m_tlv_config_idle_parameters {
540 struct i2400m_tlv_hdr hdr;
541 __le32 idle_timeout; /* 100 to 300000 ms [5min], 100 increments
543 __le32 idle_paging_interval; /* frames */
544 } __attribute__((packed));
547 enum i2400m_media_status {
548 I2400M_MEDIA_STATUS_LINK_UP = 1,
549 I2400M_MEDIA_STATUS_LINK_DOWN,
550 I2400M_MEDIA_STATUS_LINK_RENEW,
553 struct i2400m_tlv_media_status {
554 struct i2400m_tlv_hdr hdr;
556 } __attribute__((packed));
560 struct i2400m_tlv_config_idle_timeout {
561 struct i2400m_tlv_hdr hdr;
562 __le32 timeout; /* 100 to 300000 ms [5min], 100 increments
564 } __attribute__((packed));
566 /* New in v1.4 -- for backward compat, will be removed */
567 struct i2400m_tlv_config_d2h_data_format {
568 struct i2400m_tlv_hdr hdr;
569 __u8 format; /* 0 old format, 1 enhanced */
571 } __attribute__((packed));
574 struct i2400m_tlv_config_dl_host_reorder {
575 struct i2400m_tlv_hdr hdr;
576 __u8 reorder; /* 0 disabled, 1 enabled */
578 } __attribute__((packed));
581 #endif /* #ifndef __LINUX__WIMAX__I2400M_H__ */