diff --git a/arch/arm/include/types.h b/arch/arm/include/types.h index 964ce89608..f2dbc5a067 100644 --- a/arch/arm/include/types.h +++ b/arch/arm/include/types.h @@ -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, diff --git a/arch/hc/include/arch.h b/arch/hc/include/arch.h new file mode 100755 index 0000000000..980d5517a8 --- /dev/null +++ b/arch/hc/include/arch.h @@ -0,0 +1,81 @@ +/**************************************************************************** + * arch/hc/include/arch.h + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 + +/**************************************************************************** + * 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 */ diff --git a/arch/hc/include/hc12/limits.h b/arch/hc/include/hc12/limits.h new file mode 100755 index 0000000000..3d4206e2a5 --- /dev/null +++ b/arch/hc/include/hc12/limits.h @@ -0,0 +1,86 @@ +/**************************************************************************** + * arch/hc/include/hc12/limits.h + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 */ diff --git a/arch/hc/include/hc12/types.h b/arch/hc/include/hc12/types.h new file mode 100755 index 0000000000..4eb006c3c1 --- /dev/null +++ b/arch/hc/include/hc12/types.h @@ -0,0 +1,96 @@ +/**************************************************************************** + * arch/hc/include/hc12/types.h + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 */ diff --git a/arch/hc/include/limits.h b/arch/hc/include/limits.h new file mode 100755 index 0000000000..fb74bf1b36 --- /dev/null +++ b/arch/hc/include/limits.h @@ -0,0 +1,53 @@ +/**************************************************************************** + * arch/hc/include/limits.h + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 +#endif + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +#endif /* __ARCH_HC_INCLUDE_LIMITS_H */ diff --git a/arch/hc/include/types.h b/arch/hc/include/types.h new file mode 100755 index 0000000000..938d7fc52d --- /dev/null +++ b/arch/hc/include/types.h @@ -0,0 +1,65 @@ +/**************************************************************************** + * arch/hc/include/types.h + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 +#endif + +/**************************************************************************** + * Type Declarations + ****************************************************************************/ + +/**************************************************************************** + * Global Function Prototypes + ****************************************************************************/ + +#endif /* __ARCH_HC_INCLUDE_TYPES_H */ diff --git a/arch/hc/src/common/up_arch.h b/arch/hc/src/common/up_arch.h new file mode 100755 index 0000000000..8234148a21 --- /dev/null +++ b/arch/hc/src/common/up_arch.h @@ -0,0 +1,92 @@ +/**************************************************************************** + * arch/hc/src/common/up_arch.h + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 +#ifndef __ASSEMBLY__ +# include +#endif + +#include +#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 */ diff --git a/arch/hc/src/common/up_modifyreg16.c b/arch/hc/src/common/up_modifyreg16.c new file mode 100755 index 0000000000..2774d309d3 --- /dev/null +++ b/arch/hc/src/common/up_modifyreg16.c @@ -0,0 +1,85 @@ +/**************************************************************************** + * arch/hc/src/common/up_modifyreg16.c + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 + +#include +#include + +#include +#include + +#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); +} diff --git a/arch/hc/src/common/up_modifyreg32.c b/arch/hc/src/common/up_modifyreg32.c new file mode 100755 index 0000000000..f846c835e4 --- /dev/null +++ b/arch/hc/src/common/up_modifyreg32.c @@ -0,0 +1,85 @@ +/**************************************************************************** + * arch/hc/src/common/up_modifyreg32.c + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 + +#include +#include + +#include +#include + +#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); +} diff --git a/arch/hc/src/common/up_modifyreg8.c b/arch/hc/src/common/up_modifyreg8.c new file mode 100755 index 0000000000..3f6f8b4f5f --- /dev/null +++ b/arch/hc/src/common/up_modifyreg8.c @@ -0,0 +1,85 @@ +/**************************************************************************** + * arch/hc/src/common/up_modifyreg8.c + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 + +#include +#include + +#include +#include + +#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); +}