109 lines
2.4 KiB
C
109 lines
2.4 KiB
C
|
/*
|
||
|
|
* Thunderbolt control channel messages
|
||
|
|
*
|
||
|
|
* Copyright (C) 2014 Andreas Noever <andreas.noever@gmail.com>
|
||
|
|
* 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 <linux/types.h>
|
||
|
|
|
||
|
|
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_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;
|
||
|
|
|
||
|
|
#endif
|