diff options
Diffstat (limited to 'nuttx/arch/x86/src/common/up_arch.h')
-rw-r--r-- | nuttx/arch/x86/src/common/up_arch.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/nuttx/arch/x86/src/common/up_arch.h b/nuttx/arch/x86/src/common/up_arch.h new file mode 100644 index 000000000..96d49d306 --- /dev/null +++ b/nuttx/arch/x86/src/common/up_arch.h @@ -0,0 +1,90 @@ +/**************************************************************************** + * arch/x86/src/common/up_arch.h + * + * Copyright (C) 2011 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_X86_SRC_COMMON_UP_ARCH_H +#define ___ARCH_X86_SRC_COMMON_UP_ARCH_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#ifndef __ASSEMBLY__ +# include <stdint.h> +#endif +#include <arch/io.h> + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Inline Functions + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +# define getreg8(p) inb(p) +# define putreg8(v,p) outb(v,p) +# define getreg16(p) inw(p) +# define putreg16(v,p) outw(v,p) +# define getreg32(p) inl(p) +# define putreg32(v,p) outl(v,p) + +/**************************************************************************** + * 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, uint8_t clearbits, uint8_t setbits); +EXTERN void modifyreg16(unsigned int addr, uint16_t clearbits, uint16_t setbits); +EXTERN void modifyreg32(unsigned int addr, uint32_t clearbits, uint32_t setbits); + +#undef EXTERN +#if defined(__cplusplus) +} +#endif + +#endif /* __ASSEMBLY__ */ +#endif /* ___ARCH_X86_SRC_COMMON_UP_ARCH_H */ |