/* * Intel Wireless WiMax Connection 2400m * Host-Device protocol interface definitions * * * Copyright (C) 2007-2008 Intel Corporation. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name of Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * Intel Corporation <linux-wimax@intel.com> * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> * - Initial implementation * * * This header defines the data structures and constants used to * communicate with the device. * * BOOTMODE/BOOTROM/FIRMWARE UPLOAD PROTOCOL * * The firmware upload protocol is quite simple and only requires a * handful of commands. See drivers/net/wimax/i2400m/fw.c for more * details. * * The BCF data structure is for the firmware file header. * * * THE DATA / CONTROL PROTOCOL * * This is the normal protocol spoken with the device once the * firmware is uploaded. It transports data payloads and control * messages back and forth. * * It consists 'messages' that pack one or more payloads each. The * format is described in detail in drivers/net/wimax/i2400m/rx.c and * tx.c. * * * THE L3L4 PROTOCOL * * The term L3L4 refers to Layer 3 (the device), Layer 4 (the * driver/host software). * * This is the control protocol used by the host to control the i2400m * device (scan, connect, disconnect...). This is sent to / received * as control frames. These frames consist of a header and zero or * more TLVs with information. We call each control frame a "message". * * Each message is composed of: * * HEADER * [TLV0 + PAYLOAD0] * [TLV1 + PAYLOAD1] * [...] * [TLVN + PAYLOADN] * * The HEADER is defined by 'struct i2400m_l3l4_hdr'. The payloads are * defined by a TLV structure (Type Length Value) which is a 'header' * (struct i2400m_tlv_hdr) and then the payload. * * All integers are represented as Little Endian. * * - REQUESTS AND EVENTS * * The requests can be clasified as follows: * * COMMAND: implies a request from the host to the device requesting * an action being performed. The device will reply with a * message (with the same type as the command), status and * no (TLV) payload. Execution of a command might cause * events (of different type) to be sent later on as * device's state changes. * * GET/SET: similar to COMMAND, but will not cause other * EVENTs. The reply, in the case of GET, will contain * TLVs with the requested information. * * EVENT: asynchronous messages sent from the device, maybe as a * consequence of previous COMMANDs but disassociated from * them. * * Only one request might be pending at the same time (ie: don't * parallelize nor post another GET request before the previous * COMMAND has been acknowledged with it's corresponding reply by the * device). * * The different requests and their formats are described below: * * I2400M_MT_* Message types * I2400M_MS_* Message status (for replies, events) * i2400m_tlv_* TLVs * * data types are named 'struct i2400m_msg_OPNAME', OPNAME matching the * operation. */ #ifndef __LINUX__WIMAX__I2400M_H__ #define __LINUX__WIMAX__I2400M_H__ #include <linux/types.h> #include <linux/if_ether.h> /* * Host Device Interface (HDI) common to all busses */ /* Boot-mode (firmware upload mode) commands */ /* Header for the firmware file */ struct i2400m_bcf_hdr { __le32 module_type; __le32 header_len; __le32 header_version; __le32 module_id; __le32 module_vendor; __le32 date; /* BCD YYYMMDD */ __le32 size; /* in dwords */ __le32 key_size; /* in dwords */ __le32 modulus_size; /* in dwords */ __le32 exponent_size; /* in dwords */ __u8 reserved[88]; } __attribute__ ((packed)); /* Boot mode opcodes */ enum i2400m_brh_opcode { I2400M_BRH_READ = 1, I2400M_BRH_WRITE = 2, I2400M_BRH_JUMP = 3, I2400M_BRH_SIGNED_JUMP = 8, I2400M_BRH_HASH_PAYLOAD_ONLY = 9, }; /* Boot mode command masks and stuff */ enum i2400m_brh { I2400M_BRH_SIGNATURE = 0xcbbc0000, I2400M_BRH_SIGNATURE_MASK = 0xffff0000, I2400M_BRH_SIGNATURE_SHIFT = 16, I2400M_BRH_OPCODE_MASK = 0x0000000f, I2400M_BRH_RESPONSE_MASK = 0x000000f0, I2400M_BRH_RESPONSE_SHIFT = 4, I2400M_BRH_DIRECT_ACCESS = 0x00000400, I2400M_BRH_RESPONSE_REQUIRED = 0x00000200, I2400M_BRH_USE_CHECKSUM = 0x00000100, }; /** * i2400m_bootrom_header - Header for a boot-mode command * * @cmd: the above command descriptor * @target_addr: where on the device memory should the action be performed. * @data_size: for read/write, amount of data to be read/written * @block_checksum: checksum value (if applicable) * @payload: the beginning of data attached to this header */ struct i2400m_bootrom_header { __le32 command; /* Compose with enum i2400_brh */ __le32 target_addr; __le32 data_size; __le32 block_checksum; char payload[0]; } __attribute__ ((packed)); /* * Data / control protocol */ /* Packet types for the host-device interface */ enum i2400m_pt { I2400M_PT_DATA = 0, I2400M_PT_CTRL, I2400M_PT_TRACE, /* For device debug */ I2400M_PT_RESET_WARM, /* device reset */ I2400M_PT_RESET_COLD, /* USB[transport] reset, like reconnect */ I2400M_PT_EDATA, /* Extended RX data */ I2400M_PT_ILLEGAL }; /* * Payload for a data packet * * This is prefixed to each and every outgoing DATA type. */ struct i2400m_pl_data_hdr { __le32 reserved; } __attribute__((packed)); /* * Payload for an extended data packet * * New in fw v1.4 * * @reorder: if this payload has to be reorder or not (and how) * @cs: the type of data in the packet, as defined per (802.16e * T11.13.19.1). Currently only 2 (IPv4 packet) supported. * * This is prefixed to each and every INCOMING DATA packet. */ struct i2400m_pl_edata_hdr { __le32 reorder; /* bits defined in i2400m_ro */ __u8 cs; __u8 reserved[11]; } __attribute__((packed)); enum i2400m_cs { I2400M_CS_IPV4_0 = 0, I2400M_CS_IPV4 = 2, }; enum i2400m_ro { I2400M_RO_NEEDED = 0x01, I2400M_RO_TYPE = 0x03, I2400M_RO_TYPE_SHIFT = 1, I2400M_RO_CIN = 0x0f, I2400M_RO_CIN_SHIFT = 4, I2400M_RO_FBN = 0x07ff, I2400M_RO_FBN_SHIFT = 8, I2400M_RO_SN = 0x07ff, I2400M_RO_SN_SHIFT = 21, }; enum i2400m_ro_type { I2400M_RO_TYPE_RESET = 0, I2400M_RO_TYPE_PACKET, I2400M_RO_TYPE_WS, I2400M_RO_TYPE_PACKET_WS, }; /* Misc constants */ enum { I2400M_PL_ALIGN = 16, /* Payload data size alignment */ I2400M_PL_SIZE_MAX = 0x3EFF, I2400M_MAX_PLS_IN_MSG = 60, /* protocol barkers: sync sequences; for notifications they * are sent in groups of four. */ I2400M_H2D_PREVIEW_BARKER = 0xcafe900d, I2400M_COLD_RESET_BARKER = 0xc01dc01d, I2400M_WARM_RESET_BARKER = 0x50f750f7, I2400M_NBOOT_BARKER = 0xdeadbeef, I2400M_SBOOT_BARKER = 0x0ff1c1a1, I2400M_SBOOT_BARKER_6050 = 0x80000001, I2400M_ACK_BARKER = 0xfeedbabe, I2400M_D2H_MSG_BARKER = 0xbeefbabe, }; /* * Hardware payload descriptor * * Bitfields encoded in a struct to enforce typing semantics. * * Look in rx.c and tx.c for a full description of the format. */ struct i2400m_pld { __le32 val; } __attribute__ ((packed)); #define I2400M_PLD_SIZE_MASK 0x00003fff #define I2400M_PLD_TYPE_SHIFT 16 #define I2400M_PLD_TYPE_MASK 0x000f0000 /* * Header for a TX message or RX message * * @barker: preamble * @size: used for management of the FIFO queue buffer; before * sending, this is converted to be a real preamble. This * indicates the real size of the TX message that starts at this * point. If the highest bit is set, then this message is to be * skipped. * @sequence: sequence number of this message * @offset: offset where the message itself starts -- see the comments * in the file header about message header and payload descriptor * alignment. * @num_pls: number of payloads in this message * @padding: amount of padding bytes at the end of the message to make * it be of block-size aligned * * Look in rx.c and tx.c for a full description of the format. */ struct i2400m_msg_hdr { union { __le32 barker; __u32 size; /* same size type as barker!! */ }; union { __le32 sequence; __u32 offset; /* same size type as barker!! */ }; __le16 num_pls; __le16 rsv1; __le16 padding; __le16 rsv2; struct i2400m_pld pld[0]; } __attribute__ ((packed)); /* * L3/L4 control protocol */ enum { /* Interface version */ I2400M_L3L4_VERSION = 0x0100, }; /* Message types */ enum i2400m_mt { I2400M_MT_RESERVED = 0x0000, I2400M_MT_INVALID = 0xffff, I2400M_MT_REPORT_MASK = 0x8000, I2400M_MT_GET_SCAN_RESULT = 0x4202, I2400M_MT_SET_SCAN_PARAM = 0x4402, I2400M_MT_CMD_RF_CONTROL = 0x4602, I2400M_MT_CMD_SCAN = 0x4603, I2400M_MT_CMD_CONNECT = 0x4604, I2400M_MT_CMD_DISCONNECT = 0x4605, I2400M_MT_CMD_EXIT_IDLE = 0x4606, I2400M_MT_GET_LM_VERSION = 0x5201, I2400M_MT_GET_DEVICE_INFO = 0x5202, I2400M_MT_GET_LINK_STATUS = 0x5203, I2400M_MT_GET_STATISTICS = 0x5204, I2400M_MT_GET_STATE = 0x5205, I2400M_MT_GET_MEDIA_STATUS = 0x5206, I2400M_MT_SET_INIT_CONFIG = 0x5404, I2400M_MT_CMD_INIT = 0x5601, I2400M_MT_CMD_TERMINATE = 0x5602, I2400M_MT_CMD_MODE_OF_OP = 0x5603, I2400M_MT_CMD_RESET_DEVICE = 0x5604, I2400M_MT_CMD_MONITOR_CONTROL = 0x5605, I2400M_MT_CMD_ENTER_POWERSAVE = 0x5606, I2400M_MT_GET_TLS_OPERATION_RESULT = 0x6201, I2400M_MT_SET_EAP_SUCCESS = 0x6402, I2400M_MT_SET_EAP_FAIL = 0x6403, I2400M_MT_SET_EAP_KEY = 0x6404, I2400M_MT_CMD_SEND_EAP_RESPONSE = 0x6602, I2400M_MT_REPORT_SCAN_RESULT = 0xc002, I2400M_MT_REPORT_STATE = 0xd002, I2400M_MT_REPORT_POWERSAVE_READY = 0xd005, I2400M_MT_REPORT_EAP_REQUEST = 0xe002, I2400M_MT_REPORT_EAP_RESTART = 0xe003, I2400M_MT_REPORT_ALT_ACCEPT = 0xe004, I2400M_MT_REPORT_KEY_REQUEST = 0xe005, }; /* * Message Ack Status codes * * When a message is replied-to, this status is reported. */ enum i2400m_ms { I2400M_MS_DONE_OK = 0, I2400M_MS_DONE_IN_PROGRESS = 1, I2400M_MS_INVALID_OP = 2, I2400M_MS_BAD_STATE = 3, I2400M_MS_ILLEGAL_VALUE = 4, I2400M_MS_MISSING_PARAMS = 5, I2400M_MS_VERSION_ERROR = 6, I2400M_MS_ACCESSIBILITY_ERROR = 7, I2400M_MS_BUSY = 8, I2400M_MS_CORRUPTED_TLV = 9, I2400M_MS_UNINITIALIZED = 10, I2400M_MS_UNKNOWN_ERROR = 11, I2400M_MS_PRODUCTION_ERROR = 12, I2400M_MS_NO_RF = 13, I2400M_MS_NOT_READY_FOR_POWERSAVE = 14, I2400M_MS_THERMAL_CRITICAL = 15, I2400M_MS_MAX }; /** * i2400m_tlv - enumeration of the different types of TLVs * * TLVs stand for type-length-value and are the header for a payload * composed of almost anything. Each payload has a type assigned * and a length. */ enum i2400m_tlv { I2400M_TLV_L4_MESSAGE_VERSIONS = 129, I2400M_TLV_SYSTEM_STATE = 141, I2400M_TLV_MEDIA_STATUS = 161, I2400M_TLV_RF_OPERATION = 162, I2400M_TLV_RF_STATUS = 163, I2400M_TLV_DEVICE_RESET_TYPE = 132, I2400M_TLV_CONFIG_IDLE_PARAMETERS = 601, I2400M_TLV_CONFIG_IDLE_TIMEOUT = 611, I2400M_TLV_CONFIG_D2H_DATA_FORMAT = 614, I2400M_TLV_CONFIG_DL_HOST_REORDER = 615, }; struct i2400m_tlv_hdr { __le16 type; __le16 length; /* payload's */ __u8 pl[0]; } __attribute__((packed)); struct i2400m_l3l4_hdr { __le16 type; __le16 length; /* payload's */ __le16 version; __le16 resv1; __le16 status; __le16 resv2; struct i2400m_tlv_hdr pl[0]; } __attribute__((packed)); /** * i2400m_system_state - different states of the device */ enum i2400m_system_state { I2400M_SS_UNINITIALIZED = 1, I2400M_SS_INIT, I2400M_SS_READY, I2400M_SS_SCAN, I2400M_SS_STANDBY, I2400M_SS_CONNECTING, I2400M_SS_WIMAX_CONNECTED, I2400M_SS_DATA_PATH_CONNECTED, I2400M_SS_IDLE, I2400M_SS_DISCONNECTING, I2400M_SS_OUT_OF_ZONE, I2400M_SS_SLEEPACTIVE, I2400M_SS_PRODUCTION, I2400M_SS_CONFIG, I2400M_SS_RF_OFF, I2400M_SS_RF_SHUTDOWN, I2400M_SS_DEVICE_DISCONNECT, I2400M_SS_MAX, }; /** * i2400m_tlv_system_state - report on the state of the system * * @state: see enum i2400m_system_state */ struct i2400m_tlv_system_state { struct i2400m_tlv_hdr hdr; __le32 state; } __attribute__((packed)); struct i2400m_tlv_l4_message_versions { struct i2400m_tlv_hdr hdr; __le16 major; __le16 minor; __le16 branch; __le16 reserved; } __attribute__((packed)); struct i2400m_tlv_detailed_device_info { struct i2400m_tlv_hdr hdr; __u8 reserved1[400]; __u8 mac_address[ETH_ALEN]; __u8 reserved2[2]; } __attribute__((packed)); enum i2400m_rf_switch_status { I2400M_RF_SWITCH_ON = 1, I2400M_RF_SWITCH_OFF = 2, }; struct i2400m_tlv_rf_switches_status { struct i2400m_tlv_hdr hdr; __u8 sw_rf_switch; /* 1 ON, 2 OFF */ __u8 hw_rf_switch; /* 1 ON, 2 OFF */ __u8 reserved[2]; } __attribute__((packed)); enum { i2400m_rf_operation_on = 1, i2400m_rf_operation_off = 2 }; struct i2400m_tlv_rf_operation { struct i2400m_tlv_hdr hdr; __le32 status; /* 1 ON, 2 OFF */ } __attribute__((packed)); enum i2400m_tlv_reset_type { I2400M_RESET_TYPE_COLD = 1, I2400M_RESET_TYPE_WARM }; struct i2400m_tlv_device_reset_type { struct i2400m_tlv_hdr hdr; __le32 reset_type; } __attribute__((packed)); struct i2400m_tlv_config_idle_parameters { struct i2400m_tlv_hdr hdr; __le32 idle_timeout; /* 100 to 300000 ms [5min], 100 increments * 0 disabled */ __le32 idle_paging_interval; /* frames */ } __attribute__((packed)); enum i2400m_media_status { I2400M_MEDIA_STATUS_LINK_UP = 1, I2400M_MEDIA_STATUS_LINK_DOWN, I2400M_MEDIA_STATUS_LINK_RENEW, }; struct i2400m_tlv_media_status { struct i2400m_tlv_hdr hdr; __le32 media_status; } __attribute__((packed)); /* New in v1.4 */ struct i2400m_tlv_config_idle_timeout { struct i2400m_tlv_hdr hdr; __le32 timeout; /* 100 to 300000 ms [5min], 100 increments * 0 disabled */ } __attribute__((packed)); /* New in v1.4 -- for backward compat, will be removed */ struct i2400m_tlv_config_d2h_data_format { struct i2400m_tlv_hdr hdr; __u8 format; /* 0 old format, 1 enhanced */ __u8 reserved[3]; } __attribute__((packed)); /* New in v1.4 */ struct i2400m_tlv_config_dl_host_reorder { struct i2400m_tlv_hdr hdr; __u8 reorder; /* 0 disabled, 1 enabled */ __u8 reserved[3]; } __attribute__((packed)); #endif /* #ifndef __LINUX__WIMAX__I2400M_H__ */