MdePkg: Refine the comments for FileHandleIsDirectory.

[mirror_edk2.git] / MdePkg / Include / Library / IoLib.h

diff --git a/MdePkg/Include/Library/IoLib.h b/MdePkg/Include/Library/IoLib.h
index e484bef9ecc3cc49b17f947eca502c6cd22939b7..a0dd16bcd5e15c11df3522faa9aaf6eb0e038d0d 100644 (file)
--- a/MdePkg/Include/Library/IoLib.h
+++ b/MdePkg/Include/Library/IoLib.h
@@ -1,8 +1,8 @@
 /** @file\r
   Provide services to access I/O Ports and MMIO registers.\r
 \r
-Copyright (c) 2006 - 2008, Intel Corporation<BR>\r
-All rights reserved. This program and the accompanying materials\r
+Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
 are licensed and made available under the terms and conditions of the BSD License\r
 which accompanies this distribution.  The full text of the license may be found at\r
 http://opensource.org/licenses/bsd-license.php\r
@@ -192,6 +192,7 @@ IoBitFieldRead8 (
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -226,6 +227,7 @@ IoBitFieldWrite8 (
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -260,6 +262,7 @@ IoBitFieldOr8 (
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -296,6 +299,8 @@ IoBitFieldAnd8 (
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -485,6 +490,7 @@ IoBitFieldRead16 (
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -520,6 +526,7 @@ IoBitFieldWrite16 (
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -555,6 +562,7 @@ IoBitFieldOr16 (
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -592,6 +600,8 @@ IoBitFieldAnd16 (
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -781,6 +791,7 @@ IoBitFieldRead32 (
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -816,6 +827,7 @@ IoBitFieldWrite32 (
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -851,6 +863,7 @@ IoBitFieldOr32 (
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -888,6 +901,8 @@ IoBitFieldAnd32 (
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1077,6 +1092,7 @@ IoBitFieldRead64 (
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1112,6 +1128,7 @@ IoBitFieldWrite64 (
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1147,6 +1164,7 @@ IoBitFieldOr64 (
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1184,6 +1202,8 @@ IoBitFieldAnd64 (
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1366,6 +1386,7 @@ MmioBitFieldRead8 (
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1401,6 +1422,7 @@ MmioBitFieldWrite8 (
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1436,6 +1458,7 @@ MmioBitFieldOr8 (
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1472,6 +1495,8 @@ MmioBitFieldAnd8 (
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1660,6 +1685,7 @@ MmioBitFieldRead16 (
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1696,6 +1722,7 @@ MmioBitFieldWrite16 (
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1732,6 +1759,7 @@ MmioBitFieldOr16 (
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1769,6 +1797,8 @@ MmioBitFieldAnd16 (
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1957,6 +1987,7 @@ MmioBitFieldRead32 (
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1993,6 +2024,7 @@ MmioBitFieldWrite32 (
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -2029,6 +2061,7 @@ MmioBitFieldOr32 (
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -2066,6 +2099,8 @@ MmioBitFieldAnd32 (
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -2252,6 +2287,7 @@ MmioBitFieldRead64 (
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -2288,6 +2324,7 @@ MmioBitFieldWrite64 (
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -2324,6 +2361,7 @@ MmioBitFieldOr64 (
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -2361,6 +2399,8 @@ MmioBitFieldAnd64 (
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
   If EndBit is less than StartBit, then ASSERT().\r
+  If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+  If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -2514,7 +2554,7 @@ MmioReadBuffer64 (
   @param  Length          The size, in bytes, of Buffer.\r
   @param  Buffer          Pointer to a system memory buffer containing the data to write.\r
 \r
-  @return Size in bytes of the copy.\r
+  @return Buffer\r
 \r
 **/\r
 UINT8 *\r
@@ -2530,7 +2570,7 @@ MmioWriteBuffer8 (
 \r
   Copy data from system memory specified by Buffer to MMIO region specified \r
   by starting address StartAddress by using 16-bit access. The total number \r
-  of byte to be copied is specified by Length. Length is returned.\r
+  of byte to be copied is specified by Length. Buffer is returned.\r
   \r
   If StartAddress is not aligned on a 16-bit boundary, then ASSERT().\r
 \r
@@ -2545,7 +2585,7 @@ MmioWriteBuffer8 (
   @param  Length          The size, in bytes, of Buffer.\r
   @param  Buffer          Pointer to a system memory buffer containing the data to write.\r
 \r
-  @return Size in bytes of the copy.\r
+  @return Buffer\r
 \r
 **/\r
 UINT16 *\r
@@ -2561,7 +2601,7 @@ MmioWriteBuffer16 (
 \r
   Copy data from system memory specified by Buffer to MMIO region specified \r
   by starting address StartAddress by using 32-bit access. The total number \r
-  of byte to be copied is specified by Length. Length is returned.\r
+  of byte to be copied is specified by Length. Buffer is returned.\r
   \r
   If StartAddress is not aligned on a 32-bit boundary, then ASSERT().\r
 \r
@@ -2576,7 +2616,7 @@ MmioWriteBuffer16 (
   @param  Length          The size, in bytes, of Buffer.\r
   @param  Buffer          Pointer to a system memory buffer containing the data to write.\r
 \r
-  @return Size in bytes of the copy.\r
+  @return Buffer\r
 \r
 **/\r
 UINT32 *\r
@@ -2592,7 +2632,7 @@ MmioWriteBuffer32 (
 \r
   Copy data from system memory specified by Buffer to MMIO region specified \r
   by starting address StartAddress by using 64-bit access. The total number \r
-  of byte to be copied is specified by Length. Length is returned.\r
+  of byte to be copied is specified by Length. Buffer is returned.\r
   \r
   If StartAddress is not aligned on a 64-bit boundary, then ASSERT().\r
 \r
@@ -2607,7 +2647,7 @@ MmioWriteBuffer32 (
   @param  Length          The size, in bytes, of Buffer.\r
   @param  Buffer          Pointer to a system memory buffer containing the data to write.\r
 \r
-  @return Size in bytes of the copy.\r
+  @return Buffer\r
 \r
 **/\r
 UINT64 *\r