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afb361690c
- Add PCI IO region support - Add support map buffers to PCI address space - Add BSP conditional IO space support. Some PC implementations have PCI IO space mapped differently to memory space and this needs to be reflected in the busspace. - Include bsp.h to pick per BSP configuration. Closes #4514
945 lines
28 KiB
C
945 lines
28 KiB
C
/**
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* @file
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*
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* @ingroup rtems_bsd_machine
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*
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* @brief TODO.
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*
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* File origin from FreeBSD 'sys/amd64/include/bus.h'.
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*
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* Conditionally supports PCI IO regions (IO Ports).
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*/
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/*-
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* Copyright (c) 2021 Chris Johns. All rights reserved.
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*
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* Copyright (c) 2009, 2015 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Dornierstr. 4
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* Copyright (c) KATO Takenori, 1999.
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*
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* All rights reserved. Unpublished rights reserved under the copyright
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* laws of Japan.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer as
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* the first lines of this file unmodified.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1996 Charles M. Hannum. All rights reserved.
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _RTEMS_BSD_MACHINE_BUS_H_
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#define _RTEMS_BSD_MACHINE_BUS_H_
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#ifndef _RTEMS_BSD_MACHINE_RTEMS_BSD_KERNEL_SPACE_H_
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#error "the header file <machine/rtems-bsd-kernel-space.h> must be included first"
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#endif
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#ifdef __i386__
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#error "x86 has its own bus.h; check your include paths are correct"
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#endif
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#include <bsp.h>
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/*
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* BSP PCI Support
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*
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* The RTEMS Nexus bus support can optionaly support PC PCI spaces that
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* mapped to BSP speciic address spaces. Add the following define to
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* the BSP header file to enable this support:
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*
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* #define BSP_HAS_PC_PCI
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*
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* If enabled a BSP must support the following IO region calls:
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*
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* inb : read 8 bits
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* outb : write 8 bits
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* inw : read 16 bits
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* outw : write 16 bits
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* inl : read 32 bits
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* outl : write 32 bits
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*
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* The BSP needs to provide the DRAM address space offset
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* PCI_DRAM_OFFSET. This is the base address of the DRAM as seen by a
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* PCI master.
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*
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* i386 BSPs have a special bus.h file and do not use this file.
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*/
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#ifdef BSP_HAS_PC_PCI
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/*
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* Values for the bus space tag, not to be used directly by MI code.
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*/
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#define BSP_BUS_SPACE_IO 0 /* space is i/o space */
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#define BSP_BUS_SPACE_MEM 1 /* space is mem space */
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#endif /* BSP_HAS_PC_PCI */
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/*
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* Bus address alignment.
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*/
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#define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t)
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/*
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* Bus address maxima.
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*/
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#define BUS_SPACE_MAXADDR_24BIT 0xffffffU
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#define BUS_SPACE_MAXADDR_32BIT 0xffffffffU
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#define BUS_SPACE_MAXADDR UINTPTR_MAX
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#define BUS_SPACE_MAXSIZE_24BIT 0xffffffU
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#define BUS_SPACE_MAXSIZE_32BIT 0xffffffffU
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#define BUS_SPACE_MAXSIZE UINTPTR_MAX
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/*
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* Bus access.
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*/
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#define BUS_SPACE_INVALID_DATA (~0U)
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#define BUS_SPACE_UNRESTRICTED (~0U)
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/*
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* Bus read/write barrier method.
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*/
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#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
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#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
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/*
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* Bus address and size types
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*/
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typedef uintptr_t bus_addr_t;
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typedef uintptr_t bus_size_t;
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/*
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* Access methods for bus resources and address space.
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*/
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typedef int bus_space_tag_t;
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typedef uintptr_t bus_space_handle_t;
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/*
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* Map a region of device bus space into CPU virtual address space.
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*/
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static __inline int
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bus_space_map(bus_space_tag_t t __unused, bus_addr_t addr,
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bus_size_t size __unused, int flags __unused,
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bus_space_handle_t *bshp)
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{
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*bshp = addr;
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return (0);
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}
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/*
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* Unmap a region of device bus space.
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*/
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static __inline void
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bus_space_unmap(bus_space_tag_t bst __unused, bus_space_handle_t bsh __unused,
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bus_size_t size __unused)
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{
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/* Do nothing */
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}
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/*
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* Get a new handle for a subregion of an already-mapped area of bus space.
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*/
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static __inline int
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bus_space_subregion(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
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bus_size_t ofs, bus_size_t size, bus_space_handle_t *nbshp)
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{
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*nbshp = bsh + ofs;
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return (0);
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}
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/*
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* Allocate a region of memory that is accessible to devices in bus space.
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*/
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int
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bus_space_alloc(bus_space_tag_t bst __unused, bus_addr_t rstart, bus_addr_t rend,
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bus_size_t size, bus_size_t align, bus_size_t boundary, int flags,
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bus_addr_t *addrp, bus_space_handle_t *bshp);
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/*
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* Free a region of bus space accessible memory.
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*/
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void
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bus_space_free(bus_space_tag_t bst __unused, bus_space_handle_t bsh, bus_size_t size);
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static __inline void
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bus_space_barrier(bus_space_tag_t bst __unused, bus_space_handle_t bsh, bus_size_t ofs,
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bus_size_t size, int flags)
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{
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/* Do nothing */
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}
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/*
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* BSP Bus Space Map Support
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*
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* A BSP can provide the following as C macros in the BSP header
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* (bsp.h) to speicalise for special BSP specific bus operations:
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*
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* RTEMS_BSP_READ_1
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* RTEMS_BSP_READ_2
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* RTEMS_BSP_READ_4
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* RTEMS_BSP_READ_8
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* RTEMS_BSP_WRITE_1
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* RTEMS_BSP_WRITE_2
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* RTEMS_BSP_WRITE_4
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* RTEMS_BSP_WRITE_8
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*/
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static __inline uint8_t
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bsp_bus_space_read_1(const uint8_t __volatile *bsp)
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{
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#if defined(RTEMS_BSP_READ_1)
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return RTEMS_BSP_READ_1(bsp);
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#else
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return (*bsp);
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#endif
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}
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static __inline uint16_t
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bsp_bus_space_read_2(const uint16_t __volatile *bsp)
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{
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#if defined(RTEMS_BSP_READ_2)
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return RTEMS_BSP_READ_2(bsp);
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#else
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return (*bsp);
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#endif
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}
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static __inline uint32_t
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bsp_bus_space_read_4(const uint32_t __volatile *bsp)
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{
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#if defined(RTEMS_BSP_READ_4)
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return RTEMS_BSP_READ_4(bsp);
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#else
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return (*bsp);
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#endif
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}
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static __inline uint64_t
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bsp_bus_space_read_8(const uint64_t __volatile *bsp)
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{
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#if defined(RTEMS_BSP_READ_8)
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return RTEMS_BSP_READ_8(bsp);
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#else
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return (*bsp);
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#endif
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}
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static __inline void
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bsp_bus_space_write_1(uint8_t __volatile *bsp, uint8_t val)
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{
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#if defined(RTEMS_BSP_WRITE_1)
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RTEMS_BSP_WRITE_1(bsp, val);
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#else
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*bsp = val;
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#endif
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}
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static __inline void
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bsp_bus_space_write_2(uint16_t __volatile *bsp, uint16_t val)
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{
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#if defined(RTEMS_BSP_WRITE_2)
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RTEMS_BSP_WRITE_2(bsp, val);
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#else
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*bsp = val;
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#endif
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}
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static __inline void
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bsp_bus_space_write_4(uint32_t __volatile *bsp, uint32_t val)
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{
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#if defined(RTEMS_BSP_WRITE_4)
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RTEMS_BSP_WRITE_4(bsp, val);
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#else
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*bsp = val;
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#endif
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}
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static __inline void
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bsp_bus_space_write_8(uint64_t __volatile *bsp, uint64_t val)
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{
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#if defined(RTEMS_BSP_WRITE_8)
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RTEMS_BSP_WRITE_8(bsp, val);
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#else
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*bsp = val;
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#endif
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}
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/*
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* Read 1 unit of data from bus space described by the tag, handle and ofs
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* tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The
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* data is returned.
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*/
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static __inline uint8_t
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bus_space_read_1(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs)
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{
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#ifdef BSP_HAS_PC_PCI
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if (bst == BSP_BUS_SPACE_IO) {
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return inb(bsh + ofs);
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}
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#endif
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uint8_t __volatile *bsp = (uint8_t __volatile *)(bsh + ofs);
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return bsp_bus_space_read_1(bsp);
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}
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static __inline uint16_t
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bus_space_read_2(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs)
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{
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#ifdef BSP_HAS_PC_PCI
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if (bst == BSP_BUS_SPACE_IO) {
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return inw(bsh + ofs);
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}
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#endif
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uint16_t __volatile *bsp = (uint16_t __volatile *)(bsh + ofs);
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return bsp_bus_space_read_2(bsp);
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}
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static __inline uint32_t
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bus_space_read_4(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs)
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{
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#ifdef BSP_HAS_PC_PCI
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if (bst == BSP_BUS_SPACE_IO) {
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return inl(bsh + ofs);
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}
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#endif
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uint32_t __volatile *bsp = (uint32_t __volatile *)(bsh + ofs);
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return bsp_bus_space_read_4(bsp);
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}
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static __inline uint64_t
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bus_space_read_8(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs)
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{
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#ifdef BSP_HAS_PC_PCI
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if (bst == BSP_BUS_SPACE_IO)
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return BUS_SPACE_INVALID_DATA;
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#endif
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uint64_t __volatile *bsp = (uint64_t __volatile *)(bsh + ofs);
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return bsp_bus_space_read_8(bsp);
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}
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/*
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* Write 1 unit of data to bus space described by the tag, handle and ofs
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* tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The
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* data is passed by value.
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*/
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static __inline void
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bus_space_write_1(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs,
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uint8_t val)
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{
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#ifdef BSP_HAS_PC_PCI
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if (bst == BSP_BUS_SPACE_IO) {
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outb(val, bsh + ofs);
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return;
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}
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#endif
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uint8_t __volatile *bsp = (uint8_t __volatile *)(bsh + ofs);
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bsp_bus_space_write_1(bsp, val);
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}
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static __inline void
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bus_space_write_2(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs,
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uint16_t val)
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{
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#ifdef BSP_HAS_PC_PCI
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if (bst == BSP_BUS_SPACE_IO) {
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outw(val, bsh + ofs);
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return;
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}
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#endif
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uint16_t __volatile *bsp = (uint16_t __volatile *)(bsh + ofs);
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bsp_bus_space_write_2(bsp, val);
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}
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static __inline void
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bus_space_write_4(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs,
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uint32_t val)
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{
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#ifdef BSP_HAS_PC_PCI
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if (bst == BSP_BUS_SPACE_IO) {
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outl(val, bsh + ofs);
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return;
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}
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#endif
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uint32_t __volatile *bsp = (uint32_t __volatile *)(bsh + ofs);
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bsp_bus_space_write_4(bsp, val);
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}
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static __inline void
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bus_space_write_8(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs,
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uint64_t val)
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{
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#ifdef BSP_HAS_PC_PCI
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if (bst == BSP_BUS_SPACE_IO) {
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return;
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}
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#endif
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uint64_t __volatile *bsp = (uint64_t __volatile *)(bsh + ofs);
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bsp_bus_space_write_8(bsp, val);
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}
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/*
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* Read count units of data from bus space described by the tag, handle and
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* ofs tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The
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* data is returned in the buffer passed by reference.
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*/
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static __inline void
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bus_space_read_multi_1(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
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bus_size_t ofs, uint8_t *bufp, bus_size_t count)
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{
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uint8_t __volatile *bsp = (uint8_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
*bufp++ = bsp_bus_space_read_1(bsp);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_multi_2(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint16_t *bufp, bus_size_t count)
|
|
{
|
|
uint16_t __volatile *bsp = (uint16_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
*bufp++ = bsp_bus_space_read_2(bsp);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_multi_4(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint32_t *bufp, bus_size_t count)
|
|
{
|
|
uint32_t __volatile *bsp = (uint32_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
*bufp++ = bsp_bus_space_read_4(bsp);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_multi_8(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint64_t *bufp, bus_size_t count)
|
|
{
|
|
uint64_t __volatile *bsp = (uint64_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
*bufp++ = bsp_bus_space_read_8(bsp);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Write count units of data to bus space described by the tag, handle and
|
|
* ofs tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The
|
|
* data is read from the buffer passed by reference.
|
|
*/
|
|
static __inline void
|
|
bus_space_write_multi_1(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, const uint8_t *bufp, bus_size_t count)
|
|
{
|
|
uint8_t __volatile *bsp = (uint8_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_1(bsp, *bufp++);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_multi_2(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, const uint16_t *bufp, bus_size_t count)
|
|
{
|
|
uint16_t __volatile *bsp = (uint16_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_2(bsp, *bufp++);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_multi_4(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, const uint32_t *bufp, bus_size_t count)
|
|
{
|
|
uint32_t __volatile *bsp = (uint32_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_4(bsp, *bufp++);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_multi_8(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, const uint64_t *bufp, bus_size_t count)
|
|
{
|
|
uint64_t __volatile *bsp = (uint64_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_8(bsp, *bufp++);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Read count units of data from bus space described by the tag, handle and
|
|
* ofs tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The
|
|
* data is written to the buffer passed by reference and read from successive
|
|
* bus space addresses. Access is unordered.
|
|
*/
|
|
static __inline void
|
|
bus_space_read_region_1(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint8_t *bufp, bus_size_t count)
|
|
{
|
|
uint8_t __volatile *bsp = (uint8_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
*bufp++ = bsp_bus_space_read_1(bsp++);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_region_2(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint16_t *bufp, bus_size_t count)
|
|
{
|
|
uint16_t __volatile *bsp = (uint16_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
*bufp++ = bsp_bus_space_read_2(bsp++);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_region_4(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint32_t *bufp, bus_size_t count)
|
|
{
|
|
uint32_t __volatile *bsp = (uint32_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
*bufp++ = bsp_bus_space_read_4(bsp++);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_read_region_8(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint64_t *bufp, bus_size_t count)
|
|
{
|
|
uint64_t __volatile *bsp = (uint64_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
*bufp++ = bsp_bus_space_read_8(bsp++);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Write count units of data from bus space described by the tag, handle and
|
|
* ofs tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The
|
|
* data is read from the buffer passed by reference and written to successive
|
|
* bus space addresses. Access is unordered.
|
|
*/
|
|
static __inline void
|
|
bus_space_write_region_1(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, const uint8_t *bufp, bus_size_t count)
|
|
{
|
|
uint8_t __volatile *bsp = (uint8_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_1(bsp++, *bufp++);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_region_2(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, const uint16_t *bufp, bus_size_t count)
|
|
{
|
|
uint16_t __volatile *bsp = (uint16_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_2(bsp++, *bufp++);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_region_4(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, const uint32_t *bufp, bus_size_t count)
|
|
{
|
|
uint32_t __volatile *bsp = (uint32_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_4(bsp++, *bufp++);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_region_8(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, const uint64_t *bufp, bus_size_t count)
|
|
{
|
|
uint64_t __volatile *bsp = (uint64_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_8(bsp++, *bufp++);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Write count units of data from bus space described by the tag, handle and
|
|
* ofs tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The
|
|
* data is passed by value. Writes are unordered.
|
|
*/
|
|
static __inline void
|
|
bus_space_set_multi_1(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint8_t val, bus_size_t count)
|
|
{
|
|
uint8_t __volatile *bsp = (uint8_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_1(bsp, val);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_multi_2(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint16_t val, bus_size_t count)
|
|
{
|
|
uint16_t __volatile *bsp = (uint16_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_2(bsp, val);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_multi_4(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint32_t val, bus_size_t count)
|
|
{
|
|
uint32_t __volatile *bsp = (uint32_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_4(bsp, val);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_multi_8(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint64_t val, bus_size_t count)
|
|
{
|
|
uint64_t __volatile *bsp = (uint64_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_8(bsp, val);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Write count units of data from bus space described by the tag, handle and
|
|
* ofs tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The
|
|
* data is passed by value and written to successive bus space addresses.
|
|
* Writes are unordered.
|
|
*/
|
|
static __inline void
|
|
bus_space_set_region_1(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint8_t val, bus_size_t count)
|
|
{
|
|
uint8_t __volatile *bsp = (uint8_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_1(bsp++, val);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_2(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint16_t val, bus_size_t count)
|
|
{
|
|
uint16_t __volatile *bsp = (uint16_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_2(bsp++, val);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_4(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint32_t val, bus_size_t count)
|
|
{
|
|
uint32_t __volatile *bsp = (uint32_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_4(bsp++, val);
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_8(bus_space_tag_t bst __unused, bus_space_handle_t bsh,
|
|
bus_size_t ofs, uint64_t val, bus_size_t count)
|
|
{
|
|
uint64_t __volatile *bsp = (uint64_t __volatile *)(bsh + ofs);
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_8(bsp++, val);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Copy count units of data from bus space described by the tag and the first
|
|
* handle and ofs pair to bus space described by the tag and the second handle
|
|
* and ofs pair. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes.
|
|
* The data is read from successive bus space addresses and also written to
|
|
* successive bus space addresses. Both reads and writes are unordered.
|
|
*/
|
|
static __inline void
|
|
bus_space_copy_region_1(bus_space_tag_t bst __unused, bus_space_handle_t bsh1,
|
|
bus_size_t ofs1, bus_space_handle_t bsh2, bus_size_t ofs2, bus_size_t count)
|
|
{
|
|
uint8_t __volatile *dst = (uint8_t __volatile *)(bsh1 + ofs1);
|
|
uint8_t __volatile *src = (uint8_t __volatile *)(bsh2 + ofs2);
|
|
if (dst > src) {
|
|
src += count - 1;
|
|
dst += count - 1;
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_1(dst, bsp_bus_space_read_1(src));
|
|
src--;
|
|
dst--;
|
|
}
|
|
} else {
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_1(dst, bsp_bus_space_read_1(src));
|
|
src++;
|
|
dst++;
|
|
}
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_2(bus_space_tag_t bst __unused, bus_space_handle_t bsh1,
|
|
bus_size_t ofs1, bus_space_handle_t bsh2, bus_size_t ofs2, bus_size_t count)
|
|
{
|
|
uint16_t __volatile *dst = (uint16_t __volatile *)(bsh1 + ofs1);
|
|
uint16_t __volatile *src = (uint16_t __volatile *)(bsh2 + ofs2);;
|
|
if (dst > src) {
|
|
src += count - 1;
|
|
dst += count - 1;
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_2(dst, bsp_bus_space_read_2(src));
|
|
src--;
|
|
dst--;
|
|
}
|
|
} else {
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_2(dst, bsp_bus_space_read_2(src));
|
|
src++;
|
|
dst++;
|
|
}
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_4(bus_space_tag_t bst __unused, bus_space_handle_t bsh1,
|
|
bus_size_t ofs1, bus_space_handle_t bsh2, bus_size_t ofs2, bus_size_t count)
|
|
{
|
|
uint32_t __volatile *dst = (uint32_t __volatile *)(bsh1 + ofs1);
|
|
uint32_t __volatile *src = (uint32_t __volatile *)(bsh2 + ofs2);;
|
|
if (dst > src) {
|
|
src += count - 1;
|
|
dst += count - 1;
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_4(dst, bsp_bus_space_read_4(src));
|
|
src--;
|
|
dst--;
|
|
}
|
|
} else {
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_4(dst, bsp_bus_space_read_4(src));
|
|
src++;
|
|
dst++;
|
|
}
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_8(bus_space_tag_t bst __unused, bus_space_handle_t bsh1,
|
|
bus_size_t ofs1, bus_space_handle_t bsh2, bus_size_t ofs2, bus_size_t count)
|
|
{
|
|
uint64_t __volatile *dst = (uint64_t __volatile *)(bsh1 + ofs1);
|
|
uint64_t __volatile *src = (uint64_t __volatile *)(bsh2 + ofs2);;
|
|
if (dst > src) {
|
|
src += count - 1;
|
|
dst += count - 1;
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_8(dst, bsp_bus_space_read_8(src));
|
|
src--;
|
|
dst--;
|
|
}
|
|
} else {
|
|
while (count-- > 0) {
|
|
bsp_bus_space_write_8(dst, bsp_bus_space_read_8(src));
|
|
src++;
|
|
dst++;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Stream accesses are the same as normal accesses on RTEMS; there are no
|
|
* supported bus systems with an endianess different from the host one.
|
|
*/
|
|
#define bus_space_read_stream_1(t, h, o) \
|
|
bus_space_read_1(t, h, o)
|
|
#define bus_space_read_stream_2(t, h, o) \
|
|
bus_space_read_2(t, h, o)
|
|
#define bus_space_read_stream_4(t, h, o) \
|
|
bus_space_read_4(t, h, o)
|
|
#define bus_space_read_stream_8(t, h, o) \
|
|
bus_space_read_8(t, h, o)
|
|
|
|
#define bus_space_read_multi_stream_1(t, h, o, a, c) \
|
|
bus_space_read_multi_1(t, h, o, a, c)
|
|
#define bus_space_read_multi_stream_2(t, h, o, a, c) \
|
|
bus_space_read_multi_2(t, h, o, a, c)
|
|
#define bus_space_read_multi_stream_4(t, h, o, a, c) \
|
|
bus_space_read_multi_4(t, h, o, a, c)
|
|
#define bus_space_read_multi_stream_8(t, h, o, a, c) \
|
|
bus_space_read_multi_8(t, h, o, a, c)
|
|
|
|
#define bus_space_write_stream_1(t, h, o, v) \
|
|
bus_space_write_1(t, h, o, v)
|
|
#define bus_space_write_stream_2(t, h, o, v) \
|
|
bus_space_write_2(t, h, o, v)
|
|
#define bus_space_write_stream_4(t, h, o, v) \
|
|
bus_space_write_4(t, h, o, v)
|
|
#define bus_space_write_stream_8(t, h, o, v) \
|
|
bus_space_write_8(t, h, o, v)
|
|
|
|
#define bus_space_write_multi_stream_1(t, h, o, a, c) \
|
|
bus_space_write_multi_1(t, h, o, a, c)
|
|
#define bus_space_write_multi_stream_2(t, h, o, a, c) \
|
|
bus_space_write_multi_2(t, h, o, a, c)
|
|
#define bus_space_write_multi_stream_4(t, h, o, a, c) \
|
|
bus_space_write_multi_4(t, h, o, a, c)
|
|
#define bus_space_write_multi_stream_8(t, h, o, a, c) \
|
|
bus_space_write_multi_8(t, h, o, a, c)
|
|
|
|
#define bus_space_set_multi_stream_1(t, h, o, v, c) \
|
|
bus_space_set_multi_1(t, h, o, v, c)
|
|
#define bus_space_set_multi_stream_2(t, h, o, v, c) \
|
|
bus_space_set_multi_2(t, h, o, v, c)
|
|
#define bus_space_set_multi_stream_4(t, h, o, v, c) \
|
|
bus_space_set_multi_4(t, h, o, v, c)
|
|
#define bus_space_set_multi_stream_8(t, h, o, v, c) \
|
|
bus_space_set_multi_8(t, h, o, v, c)
|
|
|
|
#define bus_space_read_region_stream_1(t, h, o, a, c) \
|
|
bus_space_read_region_1(t, h, o, a, c)
|
|
#define bus_space_read_region_stream_2(t, h, o, a, c) \
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bus_space_read_region_2(t, h, o, a, c)
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#define bus_space_read_region_stream_4(t, h, o, a, c) \
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bus_space_read_region_4(t, h, o, a, c)
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#define bus_space_read_region_stream_8(t, h, o, a, c) \
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bus_space_read_region_8(t, h, o, a, c)
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#define bus_space_write_region_stream_1(t, h, o, a, c) \
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bus_space_write_region_1(t, h, o, a, c)
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#define bus_space_write_region_stream_2(t, h, o, a, c) \
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bus_space_write_region_2(t, h, o, a, c)
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#define bus_space_write_region_stream_4(t, h, o, a, c) \
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bus_space_write_region_4(t, h, o, a, c)
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#define bus_space_write_region_stream_8(t, h, o, a, c) \
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bus_space_write_region_8(t, h, o, a, c)
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#define bus_space_set_region_stream_1(t, h, o, v, c) \
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bus_space_set_region_1(t, h, o, v, c)
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#define bus_space_set_region_stream_2(t, h, o, v, c) \
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bus_space_set_region_2(t, h, o, v, c)
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#define bus_space_set_region_stream_4(t, h, o, v, c) \
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bus_space_set_region_4(t, h, o, v, c)
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#define bus_space_set_region_stream_8(t, h, o, v, c) \
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bus_space_set_region_8(t, h, o, v, c)
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#define bus_space_copy_region_stream_1(t, h1, o1, h2, o2, c) \
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bus_space_copy_region_1(t, h1, o1, h2, o2, c)
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#define bus_space_copy_region_stream_2(t, h1, o1, h2, o2, c) \
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bus_space_copy_region_2(t, h1, o1, h2, o2, c)
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#define bus_space_copy_region_stream_4(t, h1, o1, h2, o2, c) \
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bus_space_copy_region_4(t, h1, o1, h2, o2, c)
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#define bus_space_copy_region_stream_8(t, h1, o1, h2, o2, c) \
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bus_space_copy_region_8(t, h1, o1, h2, o2, c)
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#include <machine/bus_dma.h>
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#endif /* _RTEMS_BSD_MACHINE_BUS_H_ */
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