mirror of
https://git.proxmox.com/git/mirror_edk2
synced 2025-11-04 02:40:26 +00:00
ed66e1bc0d
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5820 6f19259b-4bc3-4df7-8a09-765794883524
146 lines
4.0 KiB
C
146 lines
4.0 KiB
C
/** @file
|
|
|
|
This file contains the definination for host controller memory management routines
|
|
|
|
Copyright (c) 2007, Intel Corporation
|
|
All rights reserved. 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 <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 {
|
|
EFI_PCI_IO_PROTOCOL *PciIo;
|
|
BOOLEAN Check4G;
|
|
UINT32 Which4G;
|
|
USBHC_MEM_BLOCK *Head;
|
|
} USBHC_MEM_POOL;
|
|
|
|
typedef enum {
|
|
USBHC_MEM_UNIT = 64, // Memory allocation unit, must be 2^n, n>4
|
|
|
|
USBHC_MEM_UNIT_MASK = USBHC_MEM_UNIT - 1,
|
|
USBHC_MEM_DEFAULT_PAGES = 16
|
|
}UHCI_MEM_UNIT_DATA;
|
|
|
|
#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)
|
|
|
|
|
|
/**
|
|
Initialize the memory management pool for the host controller.
|
|
|
|
@param PciIo The PciIo that can be used to access the host controller.
|
|
@param Check4G Whether the host controller requires allocated memory
|
|
from one 4G address space.
|
|
@param Which4G The 4G memory area each memory allocated should be from.
|
|
|
|
@retval EFI_SUCCESS The memory pool is initialized.
|
|
@retval EFI_OUT_OF_RESOURCE Fail to init the memory pool.
|
|
|
|
**/
|
|
USBHC_MEM_POOL *
|
|
UsbHcInitMemPool (
|
|
IN EFI_PCI_IO_PROTOCOL *PciIo,
|
|
IN BOOLEAN Check4G,
|
|
IN UINT32 Which4G
|
|
);
|
|
|
|
|
|
/**
|
|
Release the memory management pool.
|
|
|
|
@param Pool The USB memory pool to free.
|
|
|
|
@return EFI_SUCCESS The memory pool is freed.
|
|
@return EFI_DEVICE_ERROR Failed to free the memory pool.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
UsbHcFreeMemPool (
|
|
IN USBHC_MEM_POOL *Pool
|
|
);
|
|
|
|
|
|
|
|
/**
|
|
Allocate some memory from the host controller's memory pool
|
|
which can be used to communicate with host controller.
|
|
|
|
@param Pool The host controller's memory pool.
|
|
@param Size Size of the memory to allocate.
|
|
|
|
@return The allocated memory or NULL.
|
|
|
|
**/
|
|
VOID *
|
|
UsbHcAllocateMem (
|
|
IN USBHC_MEM_POOL *Pool,
|
|
IN UINTN Size
|
|
);
|
|
|
|
|
|
|
|
/**
|
|
Free the allocated memory back to the memory pool.
|
|
|
|
@param Pool The memory pool of the host controller.
|
|
@param Mem The memory to free.
|
|
@param Size The size of the memory to free.
|
|
|
|
@return None.
|
|
|
|
**/
|
|
VOID
|
|
UsbHcFreeMem (
|
|
IN USBHC_MEM_POOL *Pool,
|
|
IN VOID *Mem,
|
|
IN UINTN Size
|
|
);
|
|
#endif
|