/** @file | |
Private Header file for Usb Host Controller PEIM | |
Copyright (c) 2010, Intel Corporation. All rights reserved.<BR> | |
This program and the accompanying materials | |
are licensed and made available under the terms and conditions | |
of the BSD License which accompanies this distribution. The | |
full text of the license may be found at | |
http://opensource.org/licenses/bsd-license.php | |
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
**/ | |
#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) | |
#endif |