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/* SPDX-License-Identifier: GPL-2.0 */
/*
* xhci-debugfs.h - xHCI debugfs interface
*
* Copyright (C) 2017 Intel Corporation
*
* Author: Lu Baolu <baolu.lu@linux.intel.com>
*/
#ifndef __LINUX_XHCI_DEBUGFS_H
#define __LINUX_XHCI_DEBUGFS_H
#include <linux/debugfs.h>
#define DEBUGFS_NAMELEN 32
#define REG_CAPLENGTH 0x00
#define REG_HCSPARAMS1 0x04
#define REG_HCSPARAMS2 0x08
#define REG_HCSPARAMS3 0x0c
#define REG_HCCPARAMS1 0x10
#define REG_DOORBELLOFF 0x14
#define REG_RUNTIMEOFF 0x18
#define REG_HCCPARAMS2 0x1c
#define REG_USBCMD 0x00
#define REG_USBSTS 0x04
#define REG_PAGESIZE 0x08
#define REG_DNCTRL 0x14
#define REG_CRCR 0x18
#define REG_DCBAAP_LOW 0x30
#define REG_DCBAAP_HIGH 0x34
#define REG_CONFIG 0x38
#define REG_MFINDEX 0x00
#define REG_IR0_IMAN 0x20
#define REG_IR0_IMOD 0x24
#define REG_IR0_ERSTSZ 0x28
#define REG_IR0_ERSTBA_LOW 0x30
#define REG_IR0_ERSTBA_HIGH 0x34
#define REG_IR0_ERDP_LOW 0x38
#define REG_IR0_ERDP_HIGH 0x3c
#define REG_EXTCAP_USBLEGSUP 0x00
#define REG_EXTCAP_USBLEGCTLSTS 0x04
#define REG_EXTCAP_REVISION 0x00
#define REG_EXTCAP_NAME 0x04
#define REG_EXTCAP_PORTINFO 0x08
#define REG_EXTCAP_PORTTYPE 0x0c
#define REG_EXTCAP_MANTISSA1 0x10
#define REG_EXTCAP_MANTISSA2 0x14
#define REG_EXTCAP_MANTISSA3 0x18
#define REG_EXTCAP_MANTISSA4 0x1c
#define REG_EXTCAP_MANTISSA5 0x20
#define REG_EXTCAP_MANTISSA6 0x24
#define REG_EXTCAP_DBC_CAPABILITY 0x00
#define REG_EXTCAP_DBC_DOORBELL 0x04
#define REG_EXTCAP_DBC_ERSTSIZE 0x08
#define REG_EXTCAP_DBC_ERST_LOW 0x10
#define REG_EXTCAP_DBC_ERST_HIGH 0x14
#define REG_EXTCAP_DBC_ERDP_LOW 0x18
#define REG_EXTCAP_DBC_ERDP_HIGH 0x1c
#define REG_EXTCAP_DBC_CONTROL 0x20
#define REG_EXTCAP_DBC_STATUS 0x24
#define REG_EXTCAP_DBC_PORTSC 0x28
#define REG_EXTCAP_DBC_CONT_LOW 0x30
#define REG_EXTCAP_DBC_CONT_HIGH 0x34
#define REG_EXTCAP_DBC_DEVINFO1 0x38
#define REG_EXTCAP_DBC_DEVINFO2 0x3c
#define dump_register(nm) \
{ \
.name = __stringify(nm), \
.offset = REG_ ##nm, \
}
struct xhci_regset {
char name[DEBUGFS_NAMELEN];
struct debugfs_regset32 regset;
size_t nregs;
struct list_head list;
};
struct xhci_file_map {
const char *name;
int (*show)(struct seq_file *s, void *unused);
};
struct xhci_ep_priv {
char name[DEBUGFS_NAMELEN];
struct dentry *root;
struct xhci_stream_info *stream_info;
struct xhci_ring *show_ring;
unsigned int stream_id;
};
struct xhci_slot_priv {
char name[DEBUGFS_NAMELEN];
struct dentry *root;
struct xhci_ep_priv *eps[31];
struct xhci_virt_device *dev;
};
#ifdef CONFIG_DEBUG_FS
void xhci_debugfs_init(struct xhci_hcd *xhci);
void xhci_debugfs_exit(struct xhci_hcd *xhci);
void __init xhci_debugfs_create_root(void);
void __exit xhci_debugfs_remove_root(void);
void xhci_debugfs_create_slot(struct xhci_hcd *xhci, int slot_id);
void xhci_debugfs_remove_slot(struct xhci_hcd *xhci, int slot_id);
void xhci_debugfs_create_endpoint(struct xhci_hcd *xhci,
struct xhci_virt_device *virt_dev,
int ep_index);
void xhci_debugfs_remove_endpoint(struct xhci_hcd *xhci,
struct xhci_virt_device *virt_dev,
int ep_index);
void xhci_debugfs_create_stream_files(struct xhci_hcd *xhci,
struct xhci_virt_device *virt_dev,
int ep_index);
#else
static inline void xhci_debugfs_init(struct xhci_hcd *xhci) { }
static inline void xhci_debugfs_exit(struct xhci_hcd *xhci) { }
static inline void __init xhci_debugfs_create_root(void) { }
static inline void __exit xhci_debugfs_remove_root(void) { }
static inline void xhci_debugfs_create_slot(struct xhci_hcd *x, int s) { }
static inline void xhci_debugfs_remove_slot(struct xhci_hcd *x, int s) { }
static inline void
xhci_debugfs_create_endpoint(struct xhci_hcd *xhci,
struct xhci_virt_device *virt_dev,
int ep_index) { }
static inline void
xhci_debugfs_remove_endpoint(struct xhci_hcd *xhci,
struct xhci_virt_device *virt_dev,
int ep_index) { }
static inline void
xhci_debugfs_create_stream_files(struct xhci_hcd *xhci,
struct xhci_virt_device *virt_dev,
int ep_index) { }
#endif /* CONFIG_DEBUG_FS */
#endif /* __LINUX_XHCI_DEBUGFS_H */
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