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| author | Feng Tian <feng.tian@intel.com> | 2015-04-29 02:42:58 +0000 |
|---|---|---|
| committer | erictian <erictian@Edk2> | 2015-04-29 02:42:58 +0000 |
| commit | 0591696eff9962b52b3b0137e865198096353573 (patch) | |
| tree | f396a3f354f86c76f94f880201ec888557e1851b /MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHcMem.h | |
| parent | 5230616612bfdaf388aef75a6eb921f7ca6dafcb (diff) | |
| download | edk2-platforms-0591696eff9962b52b3b0137e865198096353573.tar.xz | |
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 <feng.tian@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17246 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHcMem.h')
| -rw-r--r-- | MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHcMem.h | 61 |
1 files changed, 61 insertions, 0 deletions
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.<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 _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
+
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