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132 lines
3.2 KiB
C
132 lines
3.2 KiB
C
/******************************************************************************
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Copyright 2009, Freie Universitaet Berlin (FUB). All rights reserved.
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These sources were developed at the Freie Universitaet Berlin, Computer Systems
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and Telematics group (http://cst.mi.fu-berlin.de).
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-------------------------------------------------------------------------------
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This file is part of FeuerWare.
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This program is free software: you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation, either version 3 of the License, or (at your option) any later
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version.
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FeuerWare is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program. If not, see http://www.gnu.org/licenses/ .
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--------------------------------------------------------------------------------
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For further information and questions please use the web site
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http://scatterweb.mi.fu-berlin.de
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and the mailinglist (subscription via web site)
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scatterweb@lists.spline.inf.fu-berlin.de
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*******************************************************************************/
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#ifndef _CPU_H
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#define _CPU_H
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/**
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* @defgroup msp430 TI MSP430
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* @ingroup cpu
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<h2>First steps</h2>
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\li See the <a href="../manual/index.html">manual</a> for toolchain and ide setup
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* @{
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*/
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#include <sched.h>
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#include <stdio.h>
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#include <signal.h>
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#include <cpu-conf.h>
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#define WORDSIZE 16
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#define F_CPU 10000000
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extern volatile int __inISR;
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extern char __isr_stack[MSP430_ISR_STACK_SIZE];
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//#define eINT() eint()
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//#define dINT() dint()
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inline void __save_context_isr() {
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__asm__("push r15");
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__asm__("push r14");
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__asm__("push r13");
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__asm__("push r12");
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__asm__("push r11");
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__asm__("push r10");
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__asm__("push r9");
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__asm__("push r8");
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__asm__("push r7");
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__asm__("push r6");
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__asm__("push r5");
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__asm__("push r4");
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__asm__("mov.w r1,%0" : "=r" (active_thread->sp));
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}
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inline void __restore_context_isr() {
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__asm__("mov.w %0,r1" : : "m" (active_thread->sp));
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__asm__("pop r4");
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__asm__("pop r5");
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__asm__("pop r6");
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__asm__("pop r7");
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__asm__("pop r8");
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__asm__("pop r9");
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__asm__("pop r10");
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__asm__("pop r11");
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__asm__("pop r12");
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__asm__("pop r13");
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__asm__("pop r14");
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__asm__("pop r15");
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}
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inline void __enter_isr() {
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__save_context_isr();
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__asm__("mov.w %0,r1" : : "i" (__isr_stack+MSP430_ISR_STACK_SIZE));
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__inISR = 1;
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}
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inline void __exit_isr() {
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__inISR = 0;
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if (sched_context_switch_request) sched_run();
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__restore_context_isr();
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__asm__("reti");
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}
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inline void __save_context() {
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__asm__("push r2"); /* save SR */
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__save_context_isr();
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}
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inline void __restore_context() {
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__restore_context_isr();
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__asm__("reti");
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}
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inline void eINT() {
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// puts("+");
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eint();
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}
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inline void dINT() {
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// puts("-");
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dint();
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}
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#define lpm_set(...)
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void thread_yield();
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int inISR();
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/** @} */
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#endif // _CPU_H
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