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/** @file
Copyright (c) 2008 - 2009, Apple Inc. 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 __SEMIHOST_PRIVATE_H__
#define __SEMIHOST_PRIVATE_H__
typedef struct {
CHAR8 *FileName;
UINT32 Mode;
UINT32 NameLength;
} SEMIHOST_FILE_OPEN_BLOCK;
typedef struct {
UINT32 Handle;
VOID *Buffer;
UINT32 Length;
} SEMIHOST_FILE_READ_WRITE_BLOCK;
typedef struct {
UINT32 Handle;
UINT32 Location;
} SEMIHOST_FILE_SEEK_BLOCK;
typedef struct {
CHAR8 *FileName;
UINT32 NameLength;
} SEMIHOST_FILE_REMOVE_BLOCK;
typedef struct {
CHAR8 *CommandLine;
UINT32 CommandLength;
} SEMIHOST_SYSTEM_BLOCK;
#if defined(__CC_ARM)
#if defined(__thumb__)
#define SWI 0xAB
#else
#define SWI 0x123456
#endif
#define SEMIHOST_SUPPORTED TRUE
__swi(SWI)
INT32
_Semihost_SYS_OPEN(
IN UINTN SWI_0x01,
IN SEMIHOST_FILE_OPEN_BLOCK *OpenBlock
);
__swi(SWI)
INT32
_Semihost_SYS_CLOSE(
IN UINTN SWI_0x02,
IN UINT32 *Handle
);
__swi(SWI)
VOID
_Semihost_SYS_WRITEC(
IN UINTN SWI_0x03,
IN CHAR8 *Character
);
__swi(SWI)
VOID
_Semihost_SYS_WRITE0(
IN UINTN SWI_0x04,
IN CHAR8 *String
);
__swi(SWI)
UINT32
_Semihost_SYS_WRITE(
IN UINTN SWI_0x05,
IN OUT SEMIHOST_FILE_READ_WRITE_BLOCK *WriteBlock
);
__swi(SWI)
UINT32
_Semihost_SYS_READ(
IN UINTN SWI_0x06,
IN OUT SEMIHOST_FILE_READ_WRITE_BLOCK *ReadBlock
);
__swi(SWI)
CHAR8
_Semihost_SYS_READC(
IN UINTN SWI_0x07,
IN UINTN Zero
);
__swi(SWI)
INT32
_Semihost_SYS_SEEK(
IN UINTN SWI_0x0A,
IN SEMIHOST_FILE_SEEK_BLOCK *SeekBlock
);
__swi(SWI)
INT32
_Semihost_SYS_FLEN(
IN UINTN SWI_0x0C,
IN UINT32 *Handle
);
__swi(SWI)
UINT32
_Semihost_SYS_REMOVE(
IN UINTN SWI_0x0E,
IN SEMIHOST_FILE_REMOVE_BLOCK *RemoveBlock
);
__swi(SWI)
UINT32
_Semihost_SYS_SYSTEM(
IN UINTN SWI_0x12,
IN SEMIHOST_SYSTEM_BLOCK *SystemBlock
);
#define Semihost_SYS_OPEN(OpenBlock) _Semihost_SYS_OPEN(0x01, OpenBlock)
#define Semihost_SYS_CLOSE(Handle) _Semihost_SYS_CLOSE(0x02, Handle)
#define Semihost_SYS_WRITE0(String) _Semihost_SYS_WRITE0(0x04, String)
#define Semihost_SYS_WRITEC(Character) _Semihost_SYS_WRITEC(0x03, Character)
#define Semihost_SYS_WRITE(WriteBlock) _Semihost_SYS_WRITE(0x05, WriteBlock)
#define Semihost_SYS_READ(ReadBlock) _Semihost_SYS_READ(0x06, ReadBlock)
#define Semihost_SYS_READC() _Semihost_SYS_READC(0x07, 0)
#define Semihost_SYS_SEEK(SeekBlock) _Semihost_SYS_SEEK(0x0A, SeekBlock)
#define Semihost_SYS_FLEN(Handle) _Semihost_SYS_FLEN(0x0C, Handle)
#define Semihost_SYS_REMOVE(RemoveBlock) _Semihost_SYS_REMOVE(0x0E, RemoveBlock)
#define Semihost_SYS_SYSTEM(SystemBlock) _Semihost_SYS_SYSTEM(0x12, SystemBlock)
#elif defined(__GNUC__) // __CC_ARM
#define SEMIHOST_SUPPORTED TRUE
UINT32
GccSemihostCall (
IN UINT32 Operation,
IN UINTN SystemBlockAddress
); // __attribute__ ((interrupt ("SVC")));
#define Semihost_SYS_OPEN(OpenBlock) GccSemihostCall(0x01, (UINTN)(OpenBlock))
#define Semihost_SYS_CLOSE(Handle) GccSemihostCall(0x02, (UINTN)(Handle))
#define Semihost_SYS_WRITE0(String) GccSemihostCall(0x04, (UINTN)(String))
#define Semihost_SYS_WRITEC(Character) GccSemihostCall(0x03, (UINTN)(Character))
#define Semihost_SYS_WRITE(WriteBlock) GccSemihostCall(0x05, (UINTN)(WriteBlock))
#define Semihost_SYS_READ(ReadBlock) GccSemihostCall(0x06, (UINTN)(ReadBlock))
#define Semihost_SYS_READC() GccSemihostCall(0x07, (UINTN)(0))
#define Semihost_SYS_SEEK(SeekBlock) GccSemihostCall(0x0A, (UINTN)(SeekBlock))
#define Semihost_SYS_FLEN(Handle) GccSemihostCall(0x0C, (UINTN)(Handle))
#define Semihost_SYS_REMOVE(RemoveBlock) GccSemihostCall(0x0E, (UINTN)(RemoveBlock))
#define Semihost_SYS_SYSTEM(SystemBlock) GccSemihostCall(0x12, (UINTN)(SystemBlock))
#else // __CC_ARM
#define SEMIHOST_SUPPORTED FALSE
#define Semihost_SYS_OPEN(OpenBlock) (-1)
#define Semihost_SYS_CLOSE(Handle) (-1)
#define Semihost_SYS_WRITE0(String)
#define Semihost_SYS_WRITEC(Character)
#define Semihost_SYS_WRITE(WriteBlock) (0)
#define Semihost_SYS_READ(ReadBlock) ((ReadBlock)->Length)
#define Semihost_SYS_READC() ('x')
#define Semihost_SYS_SEEK(SeekBlock) (-1)
#define Semihost_SYS_FLEN(Handle) (-1)
#define Semihost_SYS_REMOVE(RemoveBlock) (-1)
#define Semihost_SYS_SYSTEM(SystemBlock) (-1)
#endif // __CC_ARM
#endif //__SEMIHOST_PRIVATE_H__
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