kopia lustrzana https://github.com/micropython/micropython
95 wiersze
3.0 KiB
C
95 wiersze
3.0 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2015 Daniel Campora
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef CC3200_ASM_H_
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#define CC3200_ASM_H_
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// We have inlined IRQ functions for efficiency (they are generally
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// 1 machine instruction).
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//
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// Note on IRQ state: you should not need to know the specific
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// value of the state variable, but rather just pass the return
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// value from disable_irq back to enable_irq. If you really need
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// to know the machine-specific values, see irq.h.
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#ifndef __disable_irq
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#define __disable_irq() __asm__ volatile ("cpsid i");
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#endif
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#ifndef DEBUG
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__attribute__(( always_inline ))
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static inline void __WFI(void) {
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__asm volatile (" dsb \n"
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" isb \n"
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" wfi \n");
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}
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#else
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// For some reason the debugger gets disconnected when entering any of the sleep modes
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__attribute__(( always_inline ))
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static inline void __WFI(void) {
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__asm volatile (" dsb \n"
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" isb \n");
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}
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#endif
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__attribute__(( always_inline ))
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static inline uint32_t __get_PRIMASK(void) {
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uint32_t result;
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__asm volatile ("mrs %0, primask" : "=r" (result));
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return(result);
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}
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__attribute__(( always_inline ))
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static inline void __set_PRIMASK(uint32_t priMask) {
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__asm volatile ("msr primask, %0" : : "r" (priMask) : "memory");
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}
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__attribute__(( always_inline ))
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static inline uint32_t __get_BASEPRI(void) {
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uint32_t result;
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__asm volatile ("mrs %0, basepri" : "=r" (result));
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return(result);
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}
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__attribute__(( always_inline ))
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static inline void __set_BASEPRI(uint32_t value) {
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__asm volatile ("msr basepri, %0" : : "r" (value) : "memory");
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}
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__attribute__(( always_inline ))
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static inline void enable_irq(mp_uint_t state) {
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__set_PRIMASK(state);
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}
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__attribute__(( always_inline ))
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static inline mp_uint_t disable_irq(void) {
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mp_uint_t state = __get_PRIMASK();
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__disable_irq();
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return state;
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}
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#endif /* CC3200_ASM_H_ */
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