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 */
141 __le32 size; /* in dwords */
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,
172 * i2400m_bootrom_header - Header for a boot-mode command
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
180 struct i2400m_bootrom_header {
181 __le32 command; /* Compose with enum i2400_brh */
184 __le32 block_checksum;
186 } __attribute__ ((packed));
190 * Data / control protocol
193 /* Packet types for the host-device interface */
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 */
206 * Payload for a data packet
208 * This is prefixed to each and every outgoing DATA type.
210 struct i2400m_pl_data_hdr {
212 } __attribute__((packed));
216 * Payload for an extended data packet
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.
224 * This is prefixed to each and every INCOMING DATA packet.
226 struct i2400m_pl_edata_hdr {
227 __le32 reorder; /* bits defined in i2400m_ro */
230 } __attribute__((packed));
233 I2400M_CS_IPV4_0 = 0,
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,
249 enum i2400m_ro_type {
250 I2400M_RO_TYPE_RESET = 0,
251 I2400M_RO_TYPE_PACKET,
253 I2400M_RO_TYPE_PACKET_WS,
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,
276 * Hardware payload descriptor
278 * Bitfields encoded in a struct to enforce typing semantics.
280 * Look in rx.c and tx.c for a full description of the format.
284 } __attribute__ ((packed));
286 #define I2400M_PLD_SIZE_MASK 0x00003fff
287 #define I2400M_PLD_TYPE_SHIFT 16
288 #define I2400M_PLD_TYPE_MASK 0x000f0000
291 * Header for a TX message or RX message
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
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
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
307 * Look in rx.c and tx.c for a full description of the format.
309 struct i2400m_msg_hdr {
312 __u32 size; /* same size type as barker!! */
316 __u32 offset; /* same size type as barker!! */
322 struct i2400m_pld pld[0];
323 } __attribute__ ((packed));
328 * L3/L4 control protocol
332 /* Interface version */
333 I2400M_L3L4_VERSION = 0x0100,
338 I2400M_MT_RESERVED = 0x0000,
339 I2400M_MT_INVALID = 0xffff,
340 I2400M_MT_REPORT_MASK = 0x8000,
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,
378 * Message Ack Status codes
380 * When a message is replied-to, this status is reported.
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,
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,
404 * i2400m_tlv - enumeration of the different types of TLVs
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
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,
424 struct i2400m_tlv_hdr {
426 __le16 length; /* payload's */
428 } __attribute__((packed));
431 struct i2400m_l3l4_hdr {
433 __le16 length; /* payload's */
438 struct i2400m_tlv_hdr pl[0];
439 } __attribute__((packed));
443 * i2400m_system_state - different states of the device
445 enum i2400m_system_state {
446 I2400M_SS_UNINITIALIZED = 1,
451 I2400M_SS_CONNECTING,
452 I2400M_SS_WIMAX_CONNECTED,
453 I2400M_SS_DATA_PATH_CONNECTED,
455 I2400M_SS_DISCONNECTING,
456 I2400M_SS_OUT_OF_ZONE,
457 I2400M_SS_SLEEPACTIVE,
458 I2400M_SS_PRODUCTION,
461 I2400M_SS_RF_SHUTDOWN,
462 I2400M_SS_DEVICE_DISCONNECT,
468 * i2400m_tlv_system_state - report on the state of the system
470 * @state: see enum i2400m_system_state
472 struct i2400m_tlv_system_state {
473 struct i2400m_tlv_hdr hdr;
475 } __attribute__((packed));
478 struct i2400m_tlv_l4_message_versions {
479 struct i2400m_tlv_hdr hdr;
484 } __attribute__((packed));
487 struct i2400m_tlv_detailed_device_info {
488 struct i2400m_tlv_hdr hdr;
492 } __attribute__((packed));
495 enum i2400m_rf_switch_status {
496 I2400M_RF_SWITCH_ON = 1,
497 I2400M_RF_SWITCH_OFF = 2,
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 */
505 } __attribute__((packed));
509 i2400m_rf_operation_on = 1,
510 i2400m_rf_operation_off = 2
513 struct i2400m_tlv_rf_operation {
514 struct i2400m_tlv_hdr hdr;
515 __le32 status; /* 1 ON, 2 OFF */
516 } __attribute__((packed));
519 enum i2400m_tlv_reset_type {
520 I2400M_RESET_TYPE_COLD = 1,
521 I2400M_RESET_TYPE_WARM
524 struct i2400m_tlv_device_reset_type {
525 struct i2400m_tlv_hdr hdr;
527 } __attribute__((packed));
530 struct i2400m_tlv_config_idle_parameters {
531 struct i2400m_tlv_hdr hdr;
532 __le32 idle_timeout; /* 100 to 300000 ms [5min], 100 increments
534 __le32 idle_paging_interval; /* frames */
535 } __attribute__((packed));
538 enum i2400m_media_status {
539 I2400M_MEDIA_STATUS_LINK_UP = 1,
540 I2400M_MEDIA_STATUS_LINK_DOWN,
541 I2400M_MEDIA_STATUS_LINK_RENEW,
544 struct i2400m_tlv_media_status {
545 struct i2400m_tlv_hdr hdr;
547 } __attribute__((packed));
551 struct i2400m_tlv_config_idle_timeout {
552 struct i2400m_tlv_hdr hdr;
553 __le32 timeout; /* 100 to 300000 ms [5min], 100 increments
555 } __attribute__((packed));
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 */
562 } __attribute__((packed));
565 struct i2400m_tlv_config_dl_host_reorder {
566 struct i2400m_tlv_hdr hdr;
567 __u8 reorder; /* 0 disabled, 1 enabled */
569 } __attribute__((packed));
572 #endif /* #ifndef __LINUX__WIMAX__I2400M_H__ */