diff options
Diffstat (limited to 'nuttx/arch/dm320/include/irq.h')
| -rw-r--r-- | nuttx/arch/dm320/include/irq.h | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/nuttx/arch/dm320/include/irq.h b/nuttx/arch/dm320/include/irq.h deleted file mode 100644 index c838ad402..000000000 --- a/nuttx/arch/dm320/include/irq.h +++ /dev/null @@ -1,226 +0,0 @@ -/************************************************************ - * arch/irq.h - * - * Copyright (C) 2007 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 Gregory Nutt 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/irq.h - */ - -#ifndef __ARCH_IRQ_H -#define __ARCH_IRQ_H - -/************************************************************ - * Included Files - ************************************************************/ - -#include <arch/chip/irq.h> - -/************************************************************ - * Definitions - ************************************************************/ - -/* IRQ Stack Frame Format: - * - * Context is always saved/restored in the same way: - * - * (1) stmia rx, {r0-r14} - * (2) then the PC and CPSR - * - * This results in the following set of indices that - * can be used to access individual registers in the - * xcp.regs array: - */ - -#define REG_R0 (0) -#define REG_R1 (1) -#define REG_R2 (2) -#define REG_R3 (3) -#define REG_R4 (4) -#define REG_R5 (5) -#define REG_R6 (6) -#define REG_R7 (7) -#define REG_R8 (8) -#define REG_R9 (9) -#define REG_R10 (10) -#define REG_R11 (11) -#define REG_R12 (12) -#define REG_R13 (13) -#define REG_R14 (14) -#define REG_R15 (15) -#define REG_CPSR (16) - -#define XCPTCONTEXT_REGS (17) -#define XCPTCONTEXT_SIZE (4 * XCPTCONTEXT_REGS) - -#define REG_A1 REG_R0 -#define REG_A2 REG_R1 -#define REG_A3 REG_R2 -#define REG_A4 REG_R3 -#define REG_V1 REG_R4 -#define REG_V2 REG_R5 -#define REG_V3 REG_R6 -#define REG_V4 REG_R7 -#define REG_V5 REG_R8 -#define REG_V6 REG_R9 -#define REG_V7 REG_R10 -#define REG_SB REG_R9 -#define REG_SL REG_R10 -#define REG_FP REG_R11 -#define REG_IP REG_R12 -#define REG_SP REG_R13 -#define REG_LR REG_R14 -#define REG_PC REG_R15 - -/************************************************************ - * Public Types - ************************************************************/ - -/* This struct defines the way the registers are stored. We - * need to save: - * - * 1 CPSR - * 7 Static registers, v1-v7 (aka r4-r10) - * 1 Frame pointer, fp (aka r11) - * 1 Stack pointer, sp (aka r13) - * 1 Return address, lr (aka r14) - * --- - * 11 (XCPTCONTEXT_USER_REG) - * - * On interrupts, we also need to save: - * 4 Volatile registers, a1-a4 (aka r0-r3) - * 1 Scratch Register, ip (aka r12) - *--- - * 5 (XCPTCONTEXT_IRQ_REGS) - * - * For a total of 17 (XCPTCONTEXT_REGS) - */ - -#ifndef __ASSEMBLY__ -struct xcptcontext -{ - /* The following function pointer is non-zero if there - * are pending signals to be processed. - */ - - void *sigdeliver; /* Actual type is sig_deliver_t */ - - /* These are saved copies of LR and CPSR used during - * signal processing. - */ - - uint32 saved_pc; - uint32 saved_cpsr; - - /* Register save area */ - - uint32 regs[XCPTCONTEXT_REGS]; -}; -#endif - -/************************************************************ - * Inline functions - ************************************************************/ - -#ifndef __ASSEMBLY__ - -/* Save the current interrupt enable state & disable IRQs */ - -static inline irqstate_t irqsave(void) -{ - unsigned int flags; - unsigned int temp; - __asm__ __volatile__ - ( - "\tmrs %0, cpsr\n" - "\torr %1, %0, #128\n" - "\tmsr cpsr_c, %1" - : "=r" (flags), "=r" (temp) - : - : "memory"); - return flags; -} - -/* Restore saved IRQ & FIQ state */ - -static inline void irqrestore(irqstate_t flags) -{ - __asm__ __volatile__ - ( - "msr cpsr_c, %0" - : - : "r" (flags) - : "memory"); -} - -static inline void system_call(swint_t func, int parm1, - int parm2, int parm3) -{ - __asm__ __volatile__ - ( - "mov\tr0,%0\n\t" - "mov\tr1,%1\n\t" - "mov\tr2,%2\n\t" - "mov\tr3,%3\n\t" - "swi\t0x900001\n\t" - : - : "r" ((long)(func)), "r" ((long)(parm1)), - "r" ((long)(parm2)), "r" ((long)(parm3)) - : "r0", "r1", "r2", "r3", "lr"); -} -#endif - -/************************************************************ - * Public Variables - ************************************************************/ - -/************************************************************ - * Public Function Prototypes - ************************************************************/ - -#ifndef __ASSEMBLY__ -#ifdef __cplusplus -#define EXTERN extern "C" -extern "C" { -#else -#define EXTERN extern -#endif - -#undef EXTERN -#ifdef __cplusplus -} -#endif -#endif - -#endif /* __ARCH_IRQ_H */ - |