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Add HC12 header files

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2304 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2009-12-04 19:43:10 +00:00
parent d177854b7e
commit e4f2663d4b
10 changed files with 732 additions and 0 deletions
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4
arch/arm/include/types.h
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@ -67,6 +67,10 @@ typedef unsigned int uint32;
typedef long long sint64;
typedef unsigned long long uint64;
/* A pointer is 4 bytes */
typedef unsigned int uintptr;
/* This is the size of the interrupt state save returned by irqsave(). For
* ARM, a 32 register value is returned, for the thumb2, Cortex-M3, the 16-bit
* primask register value is returned,

81
arch/hc/include/arch.h Executable file
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@ -0,0 +1,81 @@
/****************************************************************************
* arch/hc/include/arch.h
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* This file should never be included directed but, rather,
* only indirectly through nuttx/arch.h
*/
#ifndef __ARCH_HC_INCLUDE_ARCH_H
#define __ARCH_HC_INCLUDE_ARCH_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Definitions
****************************************************************************/
/****************************************************************************
* Inline functions
****************************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
/****************************************************************************
* Public Variables
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __ARCH_HC_INCLUDE_ARCH_H */

86
arch/hc/include/hc12/limits.h Executable file
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@ -0,0 +1,86 @@
/****************************************************************************
* arch/hc/include/hc12/limits.h
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_HC_INCLUDE_HC12_LIMITS_H
#define __ARCH_HC_INCLUDE_HC12_LIMITS_H
/****************************************************************************
* Included Files
****************************************************************************/
/****************************************************************************
* Definitions
****************************************************************************/
#define CHAR_BIT 8
#define SCHAR_MIN 0x80
#define SCHAR_MAX 0x7f
#define UCHAR_MAX 0xff
/* These could be different on machines where char is unsigned */
#define CHAR_MIN SCHAR_MIN
#define CHAR_MAX SCHAR_MAX
#define SHRT_MIN 0x8000
#define SHRT_MAX 0x7fff
#define USHRT_MAX 0xffff
/* The size of an integer is controlled with the -mshort or -mnoshort GCC
* options. Here we assume that -mshort is applied and that the size of
* and integer is 2-bytes (unless CONFIG_HC12_INT32 is defined)
*/
#ifdef CONFIG_HC12_INT32
# define INT_MIN 0x80000000
# define INT_MAX 0x7fffffff
# define UINT_MAX 0xffffffff
#else
# define INT_MIN 0x8000
# define INT_MAX 0x7fff
# define UINT_MAX 0xffff
#endif
/* Long is 4-bytes and long long is 8 bytes in any case */
#define LONG_MAX 0x80000000
#define LONG_MIN 0x7fffffff
#define ULONG_MAX 0xffffffff
#define LLONG_MAX 0x8000000000000000
#define LLONG_MIN 0x7fffffffffffffff
#define ULLONG_MAX 0xffffffffffffffff
#endif /* __ARCH_HC_INCLUDE_HC12_LIMITS_H */

96
arch/hc/include/hc12/types.h Executable file
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@ -0,0 +1,96 @@
/****************************************************************************
* arch/hc/include/hc12/types.h
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* This file should never be included directed but, rather, only indirectly
* through sys/types.h
*/
#ifndef __ARCH_HC_INCLUDE_HC12_TYPES_H
#define __ARCH_HC_INCLUDE_HC12_TYPES_H
/****************************************************************************
* Included Files
****************************************************************************/
/****************************************************************************
* Definitions
****************************************************************************/
/****************************************************************************
* Type Declarations
****************************************************************************/
#ifndef __ASSEMBLY__
/* These are the sizes of the standard GNU types */
typedef char sbyte;
typedef unsigned char ubyte;
typedef unsigned char uint8;
typedef unsigned char boolean;
typedef short sint16;
typedef unsigned short uint16;
/* Normally, mc68hc1x code is compiled with the -mshort option
* which results in a 16-bit integer. If -mnoshort is defined
* then an integer is 32-bits. GCC will defined __INT__ accordingly:
*/
# if __INT__ == 16
typedef long sint32;
typedef unsigned long uint32;
#else
typedef int sint32;
typedef unsigned int uint32;
#endif
typedef long long sint64;
typedef unsigned long long uint64;
/* A pointer is two bytes */
typedef unsigned short uintptr;
/* This is the size of the interrupt state save returned by irqsave()*/
typedef unsigned int irqstate_t;
#endif /* __ASSEMBLY__ */
/****************************************************************************
* Global Function Prototypes
****************************************************************************/
#endif /* __ARCH_HC_INCLUDE_HC12_TYPES_H */

53
arch/hc/include/limits.h Executable file
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@ -0,0 +1,53 @@
/****************************************************************************
* arch/hc/include/limits.h
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_HC_INCLUDE_LIMITS_H
#define __ARCH_HC_INCLUDE_LIMITS_H
/****************************************************************************
* Included Files
****************************************************************************/
/* Include architecture-specific limits definitions */
#ifdef CONFIG_ARCH_HC12
# include <arch/hc12/limits.h>
#endif
/****************************************************************************
* Definitions
****************************************************************************/
#endif /* __ARCH_HC_INCLUDE_LIMITS_H */

65
arch/hc/include/types.h Executable file
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@ -0,0 +1,65 @@
/****************************************************************************
* arch/hc/include/types.h
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* This file should never be included directed but, rather, only indirectly
* through sys/types.h
*/
#ifndef __ARCH_HC_INCLUDE_TYPES_H
#define __ARCH_HC_INCLUDE_TYPES_H
/****************************************************************************
* Included Files
****************************************************************************/
/****************************************************************************
* Definitions
****************************************************************************/
/* Include architecture-specific limits definitions */
#ifdef CONFIG_ARCH_HC12
# include <arch/hc12/types.h>
#endif
/****************************************************************************
* Type Declarations
****************************************************************************/
/****************************************************************************
* Global Function Prototypes
****************************************************************************/
#endif /* __ARCH_HC_INCLUDE_TYPES_H */

92
arch/hc/src/common/up_arch.h Executable file
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@ -0,0 +1,92 @@
/****************************************************************************
* arch/hc/src/common/up_arch.h
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef ___ARCH_HC_SRC_COMMON_UP_ARCH_H
#define ___ARCH_HC_SRC_COMMON_UP_ARCH_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <sys/types.h>
#endif
#include <arch/board/board.h>
#include "chip.h"
/****************************************************************************
* Definitions
****************************************************************************/
/****************************************************************************
* Inline Functions
****************************************************************************/
#ifndef __ASSEMBLY__
# define getreg8(a) (*(volatile ubyte *)(a))
# define putreg8(v,a) (*(volatile ubyte *)(a) = (v))
# define getreg16(a) (*(volatile uint16 *)(a))
# define putreg16(v,a) (*(volatile uint16 *)(a) = (v))
# define getreg32(a) (*(volatile uint32 *)(a))
# define putreg32(v,a) (*(volatile uint32 *)(a) = (v))
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
/* Atomic modification of registers */
EXTERN void modifyreg8(unsigned int addr, ubyte clearbits, ubyte setbits);
EXTERN void modifyreg16(unsigned int addr, uint16 clearbits, uint16 setbits);
EXTERN void modifyreg32(unsigned int addr, uint32 clearbits, uint32 setbits);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* ___ARCH_HC_SRC_COMMON_UP_ARCH_H */

85
arch/hc/src/common/up_modifyreg16.c Executable file
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@ -0,0 +1,85 @@
/****************************************************************************
* arch/hc/src/common/up_modifyreg16.c
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <debug.h>
#include <arch/irq.h>
#include <nuttx/arch.h>
#include "up_arch.h"
/****************************************************************************
* Private Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: modifyreg16
*
* Description:
* Atomically modify the specified bits in a memory mapped register
*
****************************************************************************/
void modifyreg16(unsigned int addr, uint16 clearbits, uint16 setbits)
{
irqstate_t flags;
uint16 regval;
flags = irqsave();
regval = getreg16(addr);
regval &= ~clearbits;
regval |= setbits;
putreg16(regval, addr);
irqrestore(flags);
}

85
arch/hc/src/common/up_modifyreg32.c Executable file
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@ -0,0 +1,85 @@
/****************************************************************************
* arch/hc/src/common/up_modifyreg32.c
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <debug.h>
#include <arch/irq.h>
#include <nuttx/arch.h>
#include "up_arch.h"
/****************************************************************************
* Private Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: modifyreg32
*
* Description:
* Atomically modify the specified bits in a memory mapped register
*
****************************************************************************/
void modifyreg32(unsigned int addr, uint32 clearbits, uint32 setbits)
{
irqstate_t flags;
uint32 regval;
flags = irqsave();
regval = getreg32(addr);
regval &= ~clearbits;
regval |= setbits;
putreg32(regval, addr);
irqrestore(flags);
}

85
arch/hc/src/common/up_modifyreg8.c Executable file
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@ -0,0 +1,85 @@
/****************************************************************************
* arch/hc/src/common/up_modifyreg8.c
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <debug.h>
#include <arch/irq.h>
#include <nuttx/arch.h>
#include "up_arch.h"
/****************************************************************************
* Private Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: modifyreg8
*
* Description:
* Atomically modify the specified bits in a memory mapped register
*
****************************************************************************/
void modifyreg8(unsigned int addr, ubyte clearbits, ubyte setbits)
{
irqstate_t flags;
ubyte regval;
flags = irqsave();
regval = getreg8(addr);
regval &= ~clearbits;
regval |= setbits;
putreg8(regval, addr);
irqrestore(flags);
}