[efi] Remove obsolete EFI I/O implementation using EFI_CPU_IO_PROTOCOL
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
parent
cdca99f068
commit
0f7b3fa6f9
|
|
@ -1,48 +0,0 @@
|
|||
/** @file
|
||||
This code abstracts the CPU IO Protocol which installed by some platform or chipset-specific
|
||||
PEIM that abstracts the processor-visible I/O operations.
|
||||
|
||||
Note: This is a runtime protocol and can be used by runtime drivers after ExitBootServices().
|
||||
It is different from the PI 1.2 CPU I/O 2 Protocol, which is a boot services only protocol
|
||||
and may not be used by runtime drivers after ExitBootServices().
|
||||
|
||||
Copyright (c) 2007 - 2010, 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 that 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.
|
||||
|
||||
@par Revision Reference:
|
||||
CPU IO Protocol is defined in Framework of EFI CPU IO Protocol Spec
|
||||
Version 0.9.
|
||||
|
||||
**/
|
||||
|
||||
#ifndef _CPUIO_H_
|
||||
#define _CPUIO_H_
|
||||
|
||||
FILE_LICENCE ( BSD3 );
|
||||
|
||||
#include <ipxe/efi/Protocol/CpuIo2.h>
|
||||
|
||||
#define EFI_CPU_IO_PROTOCOL_GUID \
|
||||
{ \
|
||||
0xB0732526, 0x38C8, 0x4b40, {0x88, 0x77, 0x61, 0xC7, 0xB0, 0x6A, 0xAC, 0x45 } \
|
||||
}
|
||||
|
||||
//
|
||||
// Framework CPU IO protocol structure is the same as CPU IO 2 protocol defined in PI 1.2 spec.
|
||||
// However, there is a significant different between the Framework CPU I/O
|
||||
// Protocol and the PI 1.2 CPU I/O 2 Protocol. The Framework one is a runtime
|
||||
// protocol, which means it can be used by runtime drivers after ExitBootServices().
|
||||
// The PI one is not runtime safe, so it is a boot services only protocol and may
|
||||
// not be used by runtime drivers after ExitBootServices().
|
||||
//
|
||||
typedef EFI_CPU_IO2_PROTOCOL EFI_CPU_IO_PROTOCOL;
|
||||
|
||||
extern EFI_GUID gEfiCpuIoProtocolGuid;
|
||||
|
||||
#endif
|
||||
|
|
@ -1,144 +0,0 @@
|
|||
/** @file
|
||||
This files describes the CPU I/O 2 Protocol.
|
||||
|
||||
This protocol provides an I/O abstraction for a system processor. This protocol
|
||||
is used by a PCI root bridge I/O driver to perform memory-mapped I/O and I/O transactions.
|
||||
The I/O or memory primitives can be used by the consumer of the protocol to materialize
|
||||
bus-specific configuration cycles, such as the transitional configuration address and data
|
||||
ports for PCI. Only drivers that require direct access to the entire system should use this
|
||||
protocol.
|
||||
|
||||
Note: This is a boot-services only protocol and it may not be used by runtime drivers after
|
||||
ExitBootServices(). It is different from the Framework CPU I/O Protocol, which is a runtime
|
||||
protocol and can be used by runtime drivers after ExitBootServices().
|
||||
|
||||
Copyright (c) 2007 - 2010, 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.
|
||||
|
||||
@par Revision Reference:
|
||||
This Protocol is defined in UEFI Platform Initialization Specification 1.2
|
||||
Volume 5: Standards
|
||||
|
||||
**/
|
||||
|
||||
#ifndef __CPU_IO2_H__
|
||||
#define __CPU_IO2_H__
|
||||
|
||||
FILE_LICENCE ( BSD3 );
|
||||
|
||||
#define EFI_CPU_IO2_PROTOCOL_GUID \
|
||||
{ \
|
||||
0xad61f191, 0xae5f, 0x4c0e, {0xb9, 0xfa, 0xe8, 0x69, 0xd2, 0x88, 0xc6, 0x4f} \
|
||||
}
|
||||
|
||||
typedef struct _EFI_CPU_IO2_PROTOCOL EFI_CPU_IO2_PROTOCOL;
|
||||
|
||||
///
|
||||
/// Enumeration that defines the width of the I/O operation.
|
||||
///
|
||||
typedef enum {
|
||||
EfiCpuIoWidthUint8,
|
||||
EfiCpuIoWidthUint16,
|
||||
EfiCpuIoWidthUint32,
|
||||
EfiCpuIoWidthUint64,
|
||||
EfiCpuIoWidthFifoUint8,
|
||||
EfiCpuIoWidthFifoUint16,
|
||||
EfiCpuIoWidthFifoUint32,
|
||||
EfiCpuIoWidthFifoUint64,
|
||||
EfiCpuIoWidthFillUint8,
|
||||
EfiCpuIoWidthFillUint16,
|
||||
EfiCpuIoWidthFillUint32,
|
||||
EfiCpuIoWidthFillUint64,
|
||||
EfiCpuIoWidthMaximum
|
||||
} EFI_CPU_IO_PROTOCOL_WIDTH;
|
||||
|
||||
/**
|
||||
Enables a driver to access registers in the PI CPU I/O space.
|
||||
|
||||
The Io.Read() and Io.Write() functions enable a driver to access PCI controller
|
||||
registers in the PI CPU I/O space.
|
||||
|
||||
The I/O operations are carried out exactly as requested. The caller is responsible
|
||||
for satisfying any alignment and I/O width restrictions that a PI System on a
|
||||
platform might require. For example on some platforms, width requests of
|
||||
EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will
|
||||
be handled by the driver.
|
||||
|
||||
If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32,
|
||||
or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for
|
||||
each of the Count operations that is performed.
|
||||
|
||||
If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16,
|
||||
EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is
|
||||
incremented for each of the Count operations that is performed. The read or
|
||||
write operation is performed Count times on the same Address.
|
||||
|
||||
If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16,
|
||||
EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is
|
||||
incremented for each of the Count operations that is performed. The read or
|
||||
write operation is performed Count times from the first element of Buffer.
|
||||
|
||||
@param[in] This A pointer to the EFI_CPU_IO2_PROTOCOL instance.
|
||||
@param[in] Width Signifies the width of the I/O or Memory operation.
|
||||
@param[in] Address The base address of the I/O operation.
|
||||
@param[in] Count The number of I/O operations to perform. The number
|
||||
of bytes moved is Width size * Count, starting at Address.
|
||||
@param[in, out] Buffer For read operations, the destination buffer to store the results.
|
||||
For write operations, the source buffer from which to write data.
|
||||
|
||||
@retval EFI_SUCCESS The data was read from or written to the PI system.
|
||||
@retval EFI_INVALID_PARAMETER Width is invalid for this PI system.
|
||||
@retval EFI_INVALID_PARAMETER Buffer is NULL.
|
||||
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
|
||||
@retval EFI_UNSUPPORTED The address range specified by Address, Width,
|
||||
and Count is not valid for this PI system.
|
||||
|
||||
**/
|
||||
typedef
|
||||
EFI_STATUS
|
||||
(EFIAPI *EFI_CPU_IO_PROTOCOL_IO_MEM)(
|
||||
IN EFI_CPU_IO2_PROTOCOL *This,
|
||||
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
|
||||
IN UINT64 Address,
|
||||
IN UINTN Count,
|
||||
IN OUT VOID *Buffer
|
||||
);
|
||||
|
||||
///
|
||||
/// Service for read and write accesses.
|
||||
///
|
||||
typedef struct {
|
||||
///
|
||||
/// This service provides the various modalities of memory and I/O read.
|
||||
///
|
||||
EFI_CPU_IO_PROTOCOL_IO_MEM Read;
|
||||
///
|
||||
/// This service provides the various modalities of memory and I/O write.
|
||||
///
|
||||
EFI_CPU_IO_PROTOCOL_IO_MEM Write;
|
||||
} EFI_CPU_IO_PROTOCOL_ACCESS;
|
||||
|
||||
///
|
||||
/// Provides the basic memory and I/O interfaces that are used to abstract
|
||||
/// accesses to devices in a system.
|
||||
///
|
||||
struct _EFI_CPU_IO2_PROTOCOL {
|
||||
///
|
||||
/// Enables a driver to access memory-mapped registers in the EFI system memory space.
|
||||
///
|
||||
EFI_CPU_IO_PROTOCOL_ACCESS Mem;
|
||||
///
|
||||
/// Enables a driver to access registers in the EFI CPU I/O space.
|
||||
///
|
||||
EFI_CPU_IO_PROTOCOL_ACCESS Io;
|
||||
};
|
||||
|
||||
extern EFI_GUID gEfiCpuIo2ProtocolGuid;
|
||||
|
||||
#endif
|
||||
|
|
@ -1,180 +0,0 @@
|
|||
#ifndef _IPXE_EFI_IO_H
|
||||
#define _IPXE_EFI_IO_H
|
||||
|
||||
/** @file
|
||||
*
|
||||
* iPXE I/O API for EFI
|
||||
*
|
||||
* EFI runs with flat physical addressing, so the various mappings
|
||||
* between virtual addresses, I/O addresses and bus addresses are all
|
||||
* no-ops. I/O is handled using the EFI_CPU_IO_PROTOCOL.
|
||||
*/
|
||||
|
||||
FILE_LICENCE ( GPL2_OR_LATER );
|
||||
|
||||
#ifdef IOAPI_EFI
|
||||
#define IOAPI_PREFIX_efi
|
||||
#else
|
||||
#define IOAPI_PREFIX_efi __efi_
|
||||
#endif
|
||||
|
||||
extern unsigned long long efi_ioread ( volatile void *io_addr,
|
||||
size_t size );
|
||||
extern void efi_iowrite ( unsigned long long data, volatile void *io_addr,
|
||||
size_t size );
|
||||
extern void efi_ioreads ( volatile void *io_addr, void *data,
|
||||
size_t size, unsigned int count );
|
||||
extern void efi_iowrites ( volatile void *io_addr, const void *data,
|
||||
size_t size, unsigned int count );
|
||||
|
||||
/*
|
||||
* Physical<->Bus and Bus<->I/O address mappings
|
||||
*
|
||||
* EFI runs with flat physical addressing, so these are all no-ops.
|
||||
*
|
||||
*/
|
||||
|
||||
static inline __always_inline unsigned long
|
||||
IOAPI_INLINE ( efi, phys_to_bus ) ( unsigned long phys_addr ) {
|
||||
return phys_addr;
|
||||
}
|
||||
|
||||
static inline __always_inline unsigned long
|
||||
IOAPI_INLINE ( efi, bus_to_phys ) ( unsigned long bus_addr ) {
|
||||
return bus_addr;
|
||||
}
|
||||
|
||||
static inline __always_inline void *
|
||||
IOAPI_INLINE ( efi, ioremap ) ( unsigned long bus_addr, size_t len __unused ) {
|
||||
return ( ( void * ) bus_addr );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, iounmap ) ( volatile const void *io_addr __unused ) {
|
||||
/* Nothing to do */
|
||||
}
|
||||
|
||||
static inline __always_inline unsigned long
|
||||
IOAPI_INLINE ( efi, io_to_bus ) ( volatile const void *io_addr ) {
|
||||
return ( ( unsigned long ) io_addr );
|
||||
}
|
||||
|
||||
/*
|
||||
* I/O functions
|
||||
*
|
||||
*/
|
||||
|
||||
static inline __always_inline uint8_t
|
||||
IOAPI_INLINE ( efi, readb ) ( volatile uint8_t *io_addr ) {
|
||||
return efi_ioread ( io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline uint16_t
|
||||
IOAPI_INLINE ( efi, readw ) ( volatile uint16_t *io_addr ) {
|
||||
return efi_ioread ( io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline uint32_t
|
||||
IOAPI_INLINE ( efi, readl ) ( volatile uint32_t *io_addr ) {
|
||||
return efi_ioread ( io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline uint64_t
|
||||
IOAPI_INLINE ( efi, readq ) ( volatile uint64_t *io_addr ) {
|
||||
return efi_ioread ( io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, writeb ) ( uint8_t data, volatile uint8_t *io_addr ) {
|
||||
efi_iowrite ( data, io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, writew ) ( uint16_t data, volatile uint16_t *io_addr ) {
|
||||
efi_iowrite ( data, io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, writel ) ( uint32_t data, volatile uint32_t *io_addr ) {
|
||||
efi_iowrite ( data, io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, writeq ) ( uint64_t data, volatile uint64_t *io_addr ) {
|
||||
efi_iowrite ( data, io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline uint8_t
|
||||
IOAPI_INLINE ( efi, inb ) ( volatile uint8_t *io_addr ) {
|
||||
return efi_ioread ( io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline uint16_t
|
||||
IOAPI_INLINE ( efi, inw ) ( volatile uint16_t *io_addr ) {
|
||||
return efi_ioread ( io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline uint32_t
|
||||
IOAPI_INLINE ( efi, inl ) ( volatile uint32_t *io_addr ) {
|
||||
return efi_ioread ( io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, outb ) ( uint8_t data, volatile uint8_t *io_addr ) {
|
||||
efi_iowrite ( data, io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, outw ) ( uint16_t data, volatile uint16_t *io_addr ) {
|
||||
efi_iowrite ( data, io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, outl ) ( uint32_t data, volatile uint32_t *io_addr ) {
|
||||
efi_iowrite ( data, io_addr, sizeof ( *io_addr ) );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, insb ) ( volatile uint8_t *io_addr, uint8_t *data,
|
||||
unsigned int count ) {
|
||||
efi_ioreads ( io_addr, data, sizeof ( *io_addr ), count );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, insw ) ( volatile uint16_t *io_addr, uint16_t *data,
|
||||
unsigned int count ) {
|
||||
efi_ioreads ( io_addr, data, sizeof ( *io_addr ), count );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, insl ) ( volatile uint32_t *io_addr, uint32_t *data,
|
||||
unsigned int count ) {
|
||||
efi_ioreads ( io_addr, data, sizeof ( *io_addr ), count );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, outsb ) ( volatile uint8_t *io_addr, const uint8_t *data,
|
||||
unsigned int count ) {
|
||||
efi_iowrites ( io_addr, data, sizeof ( *io_addr ), count );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, outsw ) ( volatile uint16_t *io_addr, const uint16_t *data,
|
||||
unsigned int count ) {
|
||||
efi_iowrites ( io_addr, data, sizeof ( *io_addr ), count );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, outsl ) ( volatile uint32_t *io_addr, const uint32_t *data,
|
||||
unsigned int count ) {
|
||||
efi_iowrites ( io_addr, data, sizeof ( *io_addr ), count );
|
||||
}
|
||||
|
||||
static inline __always_inline void
|
||||
IOAPI_INLINE ( efi, mb ) ( void ) {
|
||||
/* Do nothing; EFI readl()/writel() calls already act as
|
||||
* memory barriers.
|
||||
*/
|
||||
}
|
||||
|
||||
#endif /* _IPXE_EFI_IO_H */
|
||||
|
|
@ -53,7 +53,6 @@ FILE_LICENCE ( GPL2_OR_LATER );
|
|||
PROVIDE_SINGLE_API_INLINE ( IOAPI_PREFIX_ ## _subsys, _api_func )
|
||||
|
||||
/* Include all architecture-independent I/O API headers */
|
||||
#include <ipxe/efi/efi_io.h>
|
||||
|
||||
/* Include all architecture-dependent I/O API headers */
|
||||
#include <bits/io.h>
|
||||
|
|
|
|||
|
|
@ -1,218 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as
|
||||
* published by the Free Software Foundation; either version 2 of the
|
||||
* License, or any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
||||
* 02110-1301, USA.
|
||||
*/
|
||||
|
||||
FILE_LICENCE ( GPL2_OR_LATER );
|
||||
|
||||
#include <assert.h>
|
||||
#include <ipxe/io.h>
|
||||
#include <ipxe/efi/efi.h>
|
||||
#include <ipxe/efi/Protocol/CpuIo.h>
|
||||
#include <ipxe/efi/efi_io.h>
|
||||
|
||||
/** @file
|
||||
*
|
||||
* iPXE I/O API for EFI
|
||||
*
|
||||
*/
|
||||
|
||||
/** CPU I/O protocol */
|
||||
static EFI_CPU_IO_PROTOCOL *cpu_io;
|
||||
EFI_REQUIRE_PROTOCOL ( EFI_CPU_IO_PROTOCOL, &cpu_io );
|
||||
|
||||
/** Maximum address that can be used for port I/O */
|
||||
#define MAX_PORT_ADDRESS 0xffff
|
||||
|
||||
/**
|
||||
* Determine whether or not address is a port I/O address
|
||||
*
|
||||
* @v io_addr I/O address
|
||||
* @v is_port I/O address is a port I/O address
|
||||
*/
|
||||
#define IS_PORT_ADDRESS(io_addr) \
|
||||
( ( ( intptr_t ) (io_addr) ) <= MAX_PORT_ADDRESS )
|
||||
|
||||
/**
|
||||
* Determine EFI CPU I/O width code
|
||||
*
|
||||
* @v size Size of value
|
||||
* @ret width EFI width code
|
||||
*
|
||||
* Someone at Intel clearly gets paid by the number of lines of code
|
||||
* they write. No-one should ever be able to make I/O this
|
||||
* convoluted. The EFI_CPU_IO_PROTOCOL_WIDTH enum is my favourite
|
||||
* idiocy.
|
||||
*/
|
||||
static EFI_CPU_IO_PROTOCOL_WIDTH efi_width ( size_t size ) {
|
||||
switch ( size ) {
|
||||
case 1 : return EfiCpuIoWidthFifoUint8;
|
||||
case 2 : return EfiCpuIoWidthFifoUint16;
|
||||
case 4 : return EfiCpuIoWidthFifoUint32;
|
||||
case 8 : return EfiCpuIoWidthFifoUint64;
|
||||
default :
|
||||
assert ( 0 );
|
||||
/* I wonder what this will actually do... */
|
||||
return EfiCpuIoWidthMaximum;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Read from device
|
||||
*
|
||||
* @v io_addr I/O address
|
||||
* @v size Size of value
|
||||
* @ret data Value read
|
||||
*/
|
||||
unsigned long long efi_ioread ( volatile void *io_addr, size_t size ) {
|
||||
EFI_CPU_IO_PROTOCOL_IO_MEM read;
|
||||
unsigned long long data = 0;
|
||||
EFI_STATUS efirc;
|
||||
|
||||
read = ( IS_PORT_ADDRESS ( io_addr ) ?
|
||||
cpu_io->Io.Read : cpu_io->Mem.Read );
|
||||
|
||||
if ( ( efirc = read ( cpu_io, efi_width ( size ),
|
||||
( intptr_t ) io_addr, 1,
|
||||
( void * ) &data ) ) != 0 ) {
|
||||
DBG ( "EFI I/O read at %p failed: %s\n",
|
||||
io_addr, efi_strerror ( efirc ) );
|
||||
return -1ULL;
|
||||
}
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
/**
|
||||
* Write to device
|
||||
*
|
||||
* @v data Value to write
|
||||
* @v io_addr I/O address
|
||||
* @v size Size of value
|
||||
*/
|
||||
void efi_iowrite ( unsigned long long data, volatile void *io_addr,
|
||||
size_t size ) {
|
||||
EFI_CPU_IO_PROTOCOL_IO_MEM write;
|
||||
EFI_STATUS efirc;
|
||||
|
||||
write = ( IS_PORT_ADDRESS ( io_addr ) ?
|
||||
cpu_io->Io.Write : cpu_io->Mem.Write );
|
||||
|
||||
if ( ( efirc = write ( cpu_io, efi_width ( size ),
|
||||
( intptr_t ) io_addr, 1,
|
||||
( void * ) &data ) ) != 0 ) {
|
||||
DBG ( "EFI I/O write at %p failed: %s\n",
|
||||
io_addr, efi_strerror ( efirc ) );
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* String read from device
|
||||
*
|
||||
* @v io_addr I/O address
|
||||
* @v data Data buffer
|
||||
* @v size Size of values
|
||||
* @v count Number of values to read
|
||||
*/
|
||||
void efi_ioreads ( volatile void *io_addr, void *data,
|
||||
size_t size, unsigned int count ) {
|
||||
EFI_CPU_IO_PROTOCOL_IO_MEM read;
|
||||
EFI_STATUS efirc;
|
||||
|
||||
read = ( IS_PORT_ADDRESS ( io_addr ) ?
|
||||
cpu_io->Io.Read : cpu_io->Mem.Read );
|
||||
|
||||
if ( ( efirc = read ( cpu_io, efi_width ( size ),
|
||||
( intptr_t ) io_addr, count,
|
||||
( void * ) data ) ) != 0 ) {
|
||||
DBG ( "EFI I/O string read at %p failed: %s\n",
|
||||
io_addr, efi_strerror ( efirc ) );
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* String write to device
|
||||
*
|
||||
* @v io_addr I/O address
|
||||
* @v data Data buffer
|
||||
* @v size Size of values
|
||||
* @v count Number of values to write
|
||||
*/
|
||||
void efi_iowrites ( volatile void *io_addr, const void *data,
|
||||
size_t size, unsigned int count ) {
|
||||
EFI_CPU_IO_PROTOCOL_IO_MEM write;
|
||||
EFI_STATUS efirc;
|
||||
|
||||
write = ( IS_PORT_ADDRESS ( io_addr ) ?
|
||||
cpu_io->Io.Write : cpu_io->Mem.Write );
|
||||
|
||||
if ( ( efirc = write ( cpu_io, efi_width ( size ),
|
||||
( intptr_t ) io_addr, count,
|
||||
( void * ) data ) ) != 0 ) {
|
||||
DBG ( "EFI I/O write at %p failed: %s\n",
|
||||
io_addr, efi_strerror ( efirc ) );
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Wait for I/O-mapped operation to complete
|
||||
*
|
||||
*/
|
||||
static void efi_iodelay ( void ) {
|
||||
/* Write to non-existent port. Probably x86-only. */
|
||||
outb ( 0, 0x80 );
|
||||
}
|
||||
|
||||
/**
|
||||
* Get memory map
|
||||
*
|
||||
* Can't be done on EFI so return an empty map
|
||||
*
|
||||
* @v memmap Memory map to fill in
|
||||
*/
|
||||
static void efi_get_memmap ( struct memory_map *memmap ) {
|
||||
memmap->count = 0;
|
||||
}
|
||||
|
||||
PROVIDE_IOAPI_INLINE ( efi, phys_to_bus );
|
||||
PROVIDE_IOAPI_INLINE ( efi, bus_to_phys );
|
||||
PROVIDE_IOAPI_INLINE ( efi, ioremap );
|
||||
PROVIDE_IOAPI_INLINE ( efi, iounmap );
|
||||
PROVIDE_IOAPI_INLINE ( efi, io_to_bus );
|
||||
PROVIDE_IOAPI_INLINE ( efi, readb );
|
||||
PROVIDE_IOAPI_INLINE ( efi, readw );
|
||||
PROVIDE_IOAPI_INLINE ( efi, readl );
|
||||
PROVIDE_IOAPI_INLINE ( efi, readq );
|
||||
PROVIDE_IOAPI_INLINE ( efi, writeb );
|
||||
PROVIDE_IOAPI_INLINE ( efi, writew );
|
||||
PROVIDE_IOAPI_INLINE ( efi, writel );
|
||||
PROVIDE_IOAPI_INLINE ( efi, writeq );
|
||||
PROVIDE_IOAPI_INLINE ( efi, inb );
|
||||
PROVIDE_IOAPI_INLINE ( efi, inw );
|
||||
PROVIDE_IOAPI_INLINE ( efi, inl );
|
||||
PROVIDE_IOAPI_INLINE ( efi, outb );
|
||||
PROVIDE_IOAPI_INLINE ( efi, outw );
|
||||
PROVIDE_IOAPI_INLINE ( efi, outl );
|
||||
PROVIDE_IOAPI_INLINE ( efi, insb );
|
||||
PROVIDE_IOAPI_INLINE ( efi, insw );
|
||||
PROVIDE_IOAPI_INLINE ( efi, insl );
|
||||
PROVIDE_IOAPI_INLINE ( efi, outsb );
|
||||
PROVIDE_IOAPI_INLINE ( efi, outsw );
|
||||
PROVIDE_IOAPI_INLINE ( efi, outsl );
|
||||
PROVIDE_IOAPI ( efi, iodelay, efi_iodelay );
|
||||
PROVIDE_IOAPI_INLINE ( efi, mb );
|
||||
PROVIDE_IOAPI ( efi, get_memmap, efi_get_memmap );
|
||||
Reference in New Issue