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/** @file
Private Header file for Usb Host Controller PEIM
Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _EFI_EHCI_MEM_H_
#define _EFI_EHCI_MEM_H_
#include <Uefi.h>
#include <IndustryStandard/Pci22.h>
#define USB_HC_BIT(a) ((UINTN)(1 << (a)))
#define USB_HC_BIT_IS_SET(Data, Bit) \
((BOOLEAN)(((Data) & USB_HC_BIT(Bit)) == USB_HC_BIT(Bit)))
#define USB_HC_HIGH_32BIT(Addr64) \
((UINT32)(RShiftU64((UINTN)(Addr64), 32) & 0XFFFFFFFF))
typedef struct _USBHC_MEM_BLOCK USBHC_MEM_BLOCK;
struct _USBHC_MEM_BLOCK {
UINT8 *Bits; // Bit array to record which unit is allocated
UINTN BitsLen;
UINT8 *Buf;
UINT8 *BufHost;
UINTN BufLen; // Memory size in bytes
VOID *Mapping;
USBHC_MEM_BLOCK *Next;
};
//
// USBHC_MEM_POOL is used to manage the memory used by USB
// host controller. EHCI requires the control memory and transfer
// data to be on the same 4G memory.
//
typedef struct _USBHC_MEM_POOL {
BOOLEAN Check4G;
UINT32 Which4G;
USBHC_MEM_BLOCK *Head;
} USBHC_MEM_POOL;
//
// Memory allocation unit, must be 2^n, n>4
//
#define USBHC_MEM_UNIT 64
#define USBHC_MEM_UNIT_MASK (USBHC_MEM_UNIT - 1)
#define USBHC_MEM_DEFAULT_PAGES 16
#define USBHC_MEM_ROUND(Len) (((Len) + USBHC_MEM_UNIT_MASK) & (~USBHC_MEM_UNIT_MASK))
//
// Advance the byte and bit to the next bit, adjust byte accordingly.
//
#define NEXT_BIT(Byte, Bit) \
do { \
(Bit)++; \
if ((Bit) > 7) { \
(Byte)++; \
(Bit) = 0; \
} \
} while (0)
/**
Calculate the corresponding pci bus address according to the Mem parameter.
@param Pool The memory pool of the host controller.
@param Mem The pointer to host memory.
@param Size The size of the memory region.
@return the pci memory address
**/
EFI_PHYSICAL_ADDRESS
UsbHcGetPciAddressForHostMem (
IN USBHC_MEM_POOL *Pool,
IN VOID *Mem,
IN UINTN Size
);
#endif
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