From: AbnerChang <[email protected]> QEMU RISC-V I/O lib instance. Add RISC-V I/O lib instance for QEMU FW config lib.
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Abner Chang<[email protected]> --- OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.inf | 7 ++- OvmfPkg/Library/QemuFwCfgLib/RiscV64/IoLibEx.c | 80 ++++++++++++++++++++++++++ 2 files changed, 86 insertions(+), 1 deletion(-) create mode 100644 OvmfPkg/Library/QemuFwCfgLib/RiscV64/IoLibEx.c diff --git a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.inf b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.inf index a95e1e7..eaefd17 100644 --- a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.inf +++ b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.inf @@ -2,6 +2,7 @@ # # Stateful, implicitly initialized fw_cfg library. # +# Copyright (c) 2016, Hewlett Packard Enterprise Development LP. All rights reserved.<BR> # Copyright (C) 2013, Red Hat, Inc. # Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR> # @@ -28,7 +29,7 @@ # # The following information is for reference only and not required by the build tools. # -# VALID_ARCHITECTURES = IA32 X64 +# VALID_ARCHITECTURES = IA32 X64 RISCV64 # [Sources] @@ -40,6 +41,10 @@ [Sources.X64] X64/IoLibExAsm.nasm + +[Sources.RISCV64] + RiscV64/IoLibEx.c + [Packages] MdePkg/MdePkg.dec diff --git a/OvmfPkg/Library/QemuFwCfgLib/RiscV64/IoLibEx.c b/OvmfPkg/Library/QemuFwCfgLib/RiscV64/IoLibEx.c new file mode 100644 index 0000000..8c09bba --- /dev/null +++ b/OvmfPkg/Library/QemuFwCfgLib/RiscV64/IoLibEx.c @@ -0,0 +1,80 @@ +/** @file + RISC-V specific functionality for I/O read/write. + + Copyright (c) 2016, Hewlett Packard Enterprise Development LP. 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. +**/ + +#include "Uefi.h" +#include <Library/BaseLib.h> +#include <Library/BaseMemoryLib.h> +#include <Library/DebugLib.h> +#include <Library/IoLib.h> +#include <Library/QemuFwCfgLib.h> +#include <Library/MemoryAllocationLib.h> +#include <Library/UefiBootServicesTableLib.h> + +/** + Reads an 8-bit I/O port fifo into a block of memory. + + Reads the 8-bit I/O fifo port specified by Port. + + The port is read Count times, and the read data is + stored in the provided Buffer. + + This function must guarantee that all I/O read and write operations are + serialized. + + If 8-bit I/O port operations are not supported, then ASSERT(). + + @param Port The I/O port to read. + @param Count The number of times to read I/O port. + @param Buffer The buffer to store the read data into. + +**/ +VOID +EFIAPI +IoReadFifo8 ( + IN UINTN Port, + IN UINTN Count, + OUT VOID *Buffer + ) +{ +} + +/** + Writes an 8-bit I/O port fifo from a block of memory. + + Writes the 8-bit I/O fifo port specified by Port. + + The port is written Count times, and the data are obtained + from the provided Buffer. + + This function must guarantee that all I/O read and write operations are + serialized. + + If 8-bit I/O port operations are not supported, then ASSERT(). + + @param Port The I/O port to read. + @param Count The number of times to read I/O port. + @param Buffer The buffer to store the read data into. + +**/ +VOID +EFIAPI +IoWriteFifo8 ( + IN UINTN Port, + IN UINTN Count, + OUT VOID *Buffer + ) +{ +} + + -- 1.9.5.msysgit.0 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
