mirror of https://gitee.com/openkylin/linux.git
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/*
|
|
* Thunderbolt Cactus Ridge driver - control channel and configuration commands
|
|
*
|
|
* Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com>
|
|
*/
|
|
|
|
#ifndef _TB_CFG
|
|
#define _TB_CFG
|
|
|
|
#include "nhi.h"
|
|
|
|
/* control channel */
|
|
struct tb_ctl;
|
|
|
|
typedef void (*hotplug_cb)(void *data, u64 route, u8 port, bool unplug);
|
|
|
|
struct tb_ctl *tb_ctl_alloc(struct tb_nhi *nhi, hotplug_cb cb, void *cb_data);
|
|
void tb_ctl_start(struct tb_ctl *ctl);
|
|
void tb_ctl_stop(struct tb_ctl *ctl);
|
|
void tb_ctl_free(struct tb_ctl *ctl);
|
|
|
|
/* configuration commands */
|
|
|
|
#define TB_CFG_DEFAULT_TIMEOUT 5000 /* msec */
|
|
|
|
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_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,
|
|
};
|
|
|
|
struct tb_cfg_result {
|
|
u64 response_route;
|
|
u32 response_port; /*
|
|
* If err = 1 then this is the port that send the
|
|
* error.
|
|
* If err = 0 and if this was a cfg_read/write then
|
|
* this is the the upstream port of the responding
|
|
* switch.
|
|
* Otherwise the field is set to zero.
|
|
*/
|
|
int err; /* negative errors, 0 for success, 1 for tb errors */
|
|
enum tb_cfg_error tb_error; /* valid if err == 1 */
|
|
};
|
|
|
|
|
|
int tb_cfg_error(struct tb_ctl *ctl, u64 route, u32 port,
|
|
enum tb_cfg_error error);
|
|
struct tb_cfg_result tb_cfg_reset(struct tb_ctl *ctl, u64 route,
|
|
int timeout_msec);
|
|
struct tb_cfg_result tb_cfg_read_raw(struct tb_ctl *ctl, void *buffer,
|
|
u64 route, u32 port,
|
|
enum tb_cfg_space space, u32 offset,
|
|
u32 length, int timeout_msec);
|
|
struct tb_cfg_result tb_cfg_write_raw(struct tb_ctl *ctl, void *buffer,
|
|
u64 route, u32 port,
|
|
enum tb_cfg_space space, u32 offset,
|
|
u32 length, int timeout_msec);
|
|
int tb_cfg_read(struct tb_ctl *ctl, void *buffer, u64 route, u32 port,
|
|
enum tb_cfg_space space, u32 offset, u32 length);
|
|
int tb_cfg_write(struct tb_ctl *ctl, void *buffer, u64 route, u32 port,
|
|
enum tb_cfg_space space, u32 offset, u32 length);
|
|
int tb_cfg_get_upstream_port(struct tb_ctl *ctl, u64 route);
|
|
|
|
|
|
#endif
|