You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
circuitpython/cc3200/hal/cc3200_asm.h

94 lines
3.0 KiB

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