From 0591696eff9962b52b3b0137e865198096353573 Mon Sep 17 00:00:00 2001 From: Feng Tian Date: Wed, 29 Apr 2015 02:42:58 +0000 Subject: MdeModulePkg: Add UFS (Universal Flash Storage) Stack It includes 4 drivers: 1. UfsPassThruDxe, which is a UEFI driver and consumes EFI_UFS_HOST_CONTROLLER_PROTOCOL and produces EFI_EXT_SCSI_PASS_THRU_PROTOCOL 2. UfsPciHcDxe, which is specific for pci-based UFS HC implementation and is a UEFI driver to produce EFI_UFS_HOST_CONTROLLER_PROTOCOL. 3. UfsBlockIoPei, which is a PEI driver and consumes EFI_UFS_HOST_CONTROLLER_PPI and produces EFI_PEI_VIRTUAL_BLOCK_IO_PPI. 4. UfsPciHcPei, which is specific for pci-based UFS HC implementation and is a PEI driver to produce EFI_UFS_HOST_CONTROLLER_PPI. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Feng Tian Reviewed-by: Star Zeng git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17246 6f19259b-4bc3-4df7-8a09-765794883524 --- MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHcMem.h | 61 +++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHcMem.h (limited to 'MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHcMem.h') diff --git a/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHcMem.h b/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHcMem.h new file mode 100644 index 0000000000..3c4b2407c8 --- /dev/null +++ b/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHcMem.h @@ -0,0 +1,61 @@ +/** @file + +Copyright (c) 2014, 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 _UFS_PEIM_MEM_H_ +#define _UFS_PEIM_MEM_H_ + +#define UFS_PEIM_MEM_BIT(a) ((UINTN)(1 << (a))) + +#define UFS_PEIM_MEM_BIT_IS_SET(Data, Bit) \ + ((BOOLEAN)(((Data) & UFS_PEIM_MEM_BIT(Bit)) == UFS_PEIM_MEM_BIT(Bit))) + +typedef struct _UFS_PEIM_MEM_BLOCK UFS_PEIM_MEM_BLOCK; + +struct _UFS_PEIM_MEM_BLOCK { + UINT8 *Bits; // Bit array to record which unit is allocated + UINTN BitsLen; + UINT8 *Buf; + UINTN BufLen; // Memory size in bytes + UFS_PEIM_MEM_BLOCK *Next; +}; + +typedef struct _UFS_PEIM_MEM_POOL { + UFS_PEIM_MEM_BLOCK *Head; +} UFS_PEIM_MEM_POOL; + +// +// Memory allocation unit, note that the value must meet UFS spec alignment requirement. +// +#define UFS_PEIM_MEM_UNIT 128 + +#define UFS_PEIM_MEM_UNIT_MASK (UFS_PEIM_MEM_UNIT - 1) +#define UFS_PEIM_MEM_DEFAULT_PAGES 16 + +#define UFS_PEIM_MEM_ROUND(Len) (((Len) + UFS_PEIM_MEM_UNIT_MASK) & (~UFS_PEIM_MEM_UNIT_MASK)) + +// +// Advance the byte and bit to the next bit, adjust byte accordingly. +// +#define UFS_PEIM_NEXT_BIT(Byte, Bit) \ + do { \ + (Bit)++; \ + if ((Bit) > 7) { \ + (Byte)++; \ + (Bit) = 0; \ + } \ + } while (0) + +#endif + -- cgit v1.2.3