/* * Thunderbolt control channel messages * * Copyright (C) 2014 Andreas Noever * Copyright (C) 2017, Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef _TB_MSGS #define _TB_MSGS #include #include enum tb_cfg_pkg_type { TB_CFG_PKG_READ = 1, TB_CFG_PKG_WRITE = 2, TB_CFG_PKG_ERROR = 3, TB_CFG_PKG_NOTIFY_ACK = 4, TB_CFG_PKG_EVENT = 5, TB_CFG_PKG_XDOMAIN_REQ = 6, TB_CFG_PKG_XDOMAIN_RESP = 7, TB_CFG_PKG_OVERRIDE = 8, TB_CFG_PKG_RESET = 9, TB_CFG_PKG_ICM_EVENT = 10, TB_CFG_PKG_ICM_CMD = 11, TB_CFG_PKG_ICM_RESP = 12, TB_CFG_PKG_PREPARE_TO_SLEEP = 0xd, }; enum tb_cfg_space { TB_CFG_HOPS = 0, TB_CFG_PORT = 1, TB_CFG_SWITCH = 2, TB_CFG_COUNTERS = 3, }; enum tb_cfg_error { TB_CFG_ERROR_PORT_NOT_CONNECTED = 0, TB_CFG_ERROR_LINK_ERROR = 1, TB_CFG_ERROR_INVALID_CONFIG_SPACE = 2, TB_CFG_ERROR_NO_SUCH_PORT = 4, TB_CFG_ERROR_ACK_PLUG_EVENT = 7, /* send as reply to TB_CFG_PKG_EVENT */ TB_CFG_ERROR_LOOP = 8, TB_CFG_ERROR_HEC_ERROR_DETECTED = 12, TB_CFG_ERROR_FLOW_CONTROL_ERROR = 13, }; /* common header */ struct tb_cfg_header { u32 route_hi:22; u32 unknown:10; /* highest order bit is set on replies */ u32 route_lo; } __packed; /* additional header for read/write packets */ struct tb_cfg_address { u32 offset:13; /* in dwords */ u32 length:6; /* in dwords */ u32 port:6; enum tb_cfg_space space:2; u32 seq:2; /* sequence number */ u32 zero:3; } __packed; /* TB_CFG_PKG_READ, response for TB_CFG_PKG_WRITE */ struct cfg_read_pkg { struct tb_cfg_header header; struct tb_cfg_address addr; } __packed; /* TB_CFG_PKG_WRITE, response for TB_CFG_PKG_READ */ struct cfg_write_pkg { struct tb_cfg_header header; struct tb_cfg_address addr; u32 data[64]; /* maximum size, tb_cfg_address.length has 6 bits */ } __packed; /* TB_CFG_PKG_ERROR */ struct cfg_error_pkg { struct tb_cfg_header header; enum tb_cfg_error error:4; u32 zero1:4; u32 port:6; u32 zero2:2; /* Both should be zero, still they are different fields. */ u32 zero3:16; } __packed; /* TB_CFG_PKG_EVENT */ struct cfg_event_pkg { struct tb_cfg_header header; u32 port:6; u32 zero:25; bool unplug:1; } __packed; /* TB_CFG_PKG_RESET */ struct cfg_reset_pkg { struct tb_cfg_header header; } __packed; /* TB_CFG_PKG_PREPARE_TO_SLEEP */ struct cfg_pts_pkg { struct tb_cfg_header header; u32 data; } __packed; /* ICM messages */ enum icm_pkg_code { ICM_GET_TOPOLOGY = 0x1, ICM_DRIVER_READY = 0x3, ICM_APPROVE_DEVICE = 0x4, ICM_CHALLENGE_DEVICE = 0x5, ICM_ADD_DEVICE_KEY = 0x6, ICM_GET_ROUTE = 0xa, }; enum icm_event_code { ICM_EVENT_DEVICE_CONNECTED = 3, ICM_EVENT_DEVICE_DISCONNECTED = 4, }; struct icm_pkg_header { u8 code; u8 flags; u8 packet_id; u8 total_packets; } __packed; #define ICM_FLAGS_ERROR BIT(0) #define ICM_FLAGS_NO_KEY BIT(1) #define ICM_FLAGS_SLEVEL_SHIFT 3 #define ICM_FLAGS_SLEVEL_MASK GENMASK(4, 3) struct icm_pkg_driver_ready { struct icm_pkg_header hdr; } __packed; struct icm_pkg_driver_ready_response { struct icm_pkg_header hdr; u8 romver; u8 ramver; u16 security_level; } __packed; /* Falcon Ridge & Alpine Ridge common messages */ struct icm_fr_pkg_get_topology { struct icm_pkg_header hdr; } __packed; #define ICM_GET_TOPOLOGY_PACKETS 14 struct icm_fr_pkg_get_topology_response { struct icm_pkg_header hdr; u32 route_lo; u32 route_hi; u8 first_data; u8 second_data; u8 drom_i2c_address_index; u8 switch_index; u32 reserved[2]; u32 ports[16]; u32 port_hop_info[16]; } __packed; #define ICM_SWITCH_USED BIT(0) #define ICM_SWITCH_UPSTREAM_PORT_MASK GENMASK(7, 1) #define ICM_SWITCH_UPSTREAM_PORT_SHIFT 1 #define ICM_PORT_TYPE_MASK GENMASK(23, 0) #define ICM_PORT_INDEX_SHIFT 24 #define ICM_PORT_INDEX_MASK GENMASK(31, 24) struct icm_fr_event_device_connected { struct icm_pkg_header hdr; uuid_t ep_uuid; u8 connection_key; u8 connection_id; u16 link_info; u32 ep_name[55]; } __packed; #define ICM_LINK_INFO_LINK_MASK 0x7 #define ICM_LINK_INFO_DEPTH_SHIFT 4 #define ICM_LINK_INFO_DEPTH_MASK GENMASK(7, 4) #define ICM_LINK_INFO_APPROVED BIT(8) struct icm_fr_pkg_approve_device { struct icm_pkg_header hdr; uuid_t ep_uuid; u8 connection_key; u8 connection_id; u16 reserved; } __packed; struct icm_fr_event_device_disconnected { struct icm_pkg_header hdr; u16 reserved; u16 link_info; } __packed; struct icm_fr_pkg_add_device_key { struct icm_pkg_header hdr; uuid_t ep_uuid; u8 connection_key; u8 connection_id; u16 reserved; u32 key[8]; } __packed; struct icm_fr_pkg_add_device_key_response { struct icm_pkg_header hdr; uuid_t ep_uuid; u8 connection_key; u8 connection_id; u16 reserved; } __packed; struct icm_fr_pkg_challenge_device { struct icm_pkg_header hdr; uuid_t ep_uuid; u8 connection_key; u8 connection_id; u16 reserved; u32 challenge[8]; } __packed; struct icm_fr_pkg_challenge_device_response { struct icm_pkg_header hdr; uuid_t ep_uuid; u8 connection_key; u8 connection_id; u16 reserved; u32 challenge[8]; u32 response[8]; } __packed; /* Alpine Ridge only messages */ struct icm_ar_pkg_get_route { struct icm_pkg_header hdr; u16 reserved; u16 link_info; } __packed; struct icm_ar_pkg_get_route_response { struct icm_pkg_header hdr; u16 reserved; u16 link_info; u32 route_hi; u32 route_lo; } __packed; #endif