/* * Thunderbolt Cactus Ridge driver - control channel and configuration commands * * Copyright (c) 2014 Andreas Noever */ #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 c9be894411aaf8b17bb58c8efe5'/>

path: root/include/dt-bindings/arm

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