diff options
| author | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-07-11 06:46:38 +0000 |
|---|---|---|
| committer | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-07-11 06:46:38 +0000 |
| commit | 913cb9dc645d6db47d8c2a0be0369083b8bed25d (patch) | |
| tree | a90ffdbbc5aee9c08832248527add15cbd6f8b9c /MdeModulePkg/Bus/Pci/EhciDxe/UsbHcMem.h | |
| parent | 20b1aab6096eb922e0ce8acec44abfd440756e6f (diff) | |
| download | edk2-platforms-913cb9dc645d6db47d8c2a0be0369083b8bed25d.tar.xz | |
Import EhciDxe and UhciDxe into MdeModulePkg.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3191 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Bus/Pci/EhciDxe/UsbHcMem.h')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/EhciDxe/UsbHcMem.h | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/UsbHcMem.h b/MdeModulePkg/Bus/Pci/EhciDxe/UsbHcMem.h new file mode 100644 index 0000000000..10d3545feb --- /dev/null +++ b/MdeModulePkg/Bus/Pci/EhciDxe/UsbHcMem.h @@ -0,0 +1,168 @@ +/** @file
+
+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.
+
+Module Name:
+
+ EhciMem.h
+
+Abstract:
+
+ This file contains the definination for host controller memory management routines
+
+Revision History
+
+**/
+
+#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;
+
+typedef 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_BLOCK;
+
+//
+// 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;
+
+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,
+};
+
+#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)
+
+
+
+USBHC_MEM_POOL *
+UsbHcInitMemPool (
+ IN EFI_PCI_IO_PROTOCOL *PciIo,
+ IN BOOLEAN Check4G,
+ IN UINT32 Which4G
+ )
+/*++
+
+Routine Description:
+
+ Initialize the memory management pool for the host controller
+
+Arguments:
+
+ Pool - The USB memory pool to initialize
+ PciIo - The PciIo that can be used to access the host controller
+ Check4G - Whether the host controller requires allocated memory
+ from one 4G address space.
+ Which4G - The 4G memory area each memory allocated should be from
+
+Returns:
+
+ EFI_SUCCESS : The memory pool is initialized
+ EFI_OUT_OF_RESOURCE : Fail to init the memory pool
+
+--*/
+;
+
+
+
+/**
+ 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 VOID
+
+**/
+VOID
+UsbHcFreeMem (
+ IN USBHC_MEM_POOL *Pool,
+ IN VOID *Mem,
+ IN UINTN Size
+ )
+;
+#endif
|