| 1 | /* |
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| 2 | * Copyright (c) 2011 Aeroflex Gaisler |
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| 3 | * |
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| 4 | * BSD license: |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
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| 7 | * of this software and associated documentation files (the "Software"), to deal |
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| 8 | * in the Software without restriction, including without limitation the rights |
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| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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| 10 | * copies of the Software, and to permit persons to whom the Software is |
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| 11 | * furnished to do so, subject to the following conditions: |
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| 12 | * |
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| 13 | * The above copyright notice and this permission notice shall be included in |
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| 14 | * all copies or substantial portions of the Software. |
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| 15 | * |
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| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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| 22 | * THE SOFTWARE. |
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| 23 | */ |
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| 24 | |
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| 25 | |
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| 26 | #ifndef _LEON_CATCHIRQ_HANDLER_H_ |
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| 27 | #define _LEON_CATCHIRQ_HANDLER_H_ |
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| 28 | |
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| 29 | #include <asm-leon/leon.h> |
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| 30 | #include <asm-leon/queue.h> |
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| 31 | /*#include <sys/fsu_pthread_queue.h>*/ |
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| 32 | #include <asm-leon/leoncompat.h> |
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| 33 | #include <asm-leon/leonstack.h> |
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| 34 | |
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| 35 | #ifndef __ASSEMBLER__ |
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| 36 | |
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| 37 | struct pt_regs; |
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| 38 | typedef int (*irqhandler) (int, void *, struct leonbare_pt_regs *); |
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| 39 | |
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| 40 | struct irqaction |
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| 41 | { |
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| 42 | irqhandler handler; |
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| 43 | unsigned long flags; |
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| 44 | void *dev_id; |
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| 45 | struct irqaction *next; |
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| 46 | }; |
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| 47 | #define INIT_IRQACTION { 0,0,0,0 } |
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| 48 | |
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| 49 | struct irqmp_type |
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| 50 | { |
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| 51 | int *addr; |
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| 52 | int eirq; |
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| 53 | }; |
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| 54 | |
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| 55 | extern void chained_catch_interrupt (int irq, struct irqaction *a); |
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| 56 | extern int catch_interrupt (int func, int irq); |
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| 57 | |
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| 58 | typedef int (*schedulehandler) (struct leonbare_pt_regs *); |
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| 59 | extern schedulehandler schedule_callback; |
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| 60 | typedef int (*tickerhandler) (struct leonbare_pt_regs *); |
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| 61 | extern tickerhandler ticker_callback; |
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| 62 | extern int leonbare_hz; |
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| 63 | extern int nestcount; |
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| 64 | extern int no_inirq_check; |
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| 65 | extern unsigned long force_noalarm; |
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| 66 | |
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| 67 | extern void (*handler_irq_pre) (void); |
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| 68 | extern void (*handler_irq_post) (void); |
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| 69 | |
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| 70 | extern void leonbare_enable_traps (unsigned long old_flags); |
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| 71 | extern unsigned long leonbare_disable_traps (); |
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| 72 | extern void leonbare_flush_windows (); |
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| 73 | |
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| 74 | static inline void |
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| 75 | leonbare_enable_irq (int irq) |
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| 76 | { |
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| 77 | unsigned int old, irqmask = 1 << irq; |
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| 78 | old = leonbare_disable_traps (); |
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| 79 | //--------------------- |
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| 80 | switch (LEONCOMPAT_VERSION) |
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| 81 | { |
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| 82 | case 3: |
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| 83 | default: |
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| 84 | LEON3_IrqCtrl_Regs->mask[0] = LEON3_IrqCtrl_Regs->mask[0] | irqmask; |
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| 85 | break; |
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| 86 | } |
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| 87 | //--------------------- |
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| 88 | leonbare_enable_traps (old); |
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| 89 | } |
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| 90 | |
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| 91 | typedef int (*pendinghandler) (void *); |
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| 92 | struct pendingaction |
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| 93 | { |
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| 94 | TAILQ_ENTRY (pendingaction) next; |
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| 95 | pendinghandler handler; |
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| 96 | void *arg; |
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| 97 | }; |
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| 98 | |
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| 99 | #endif |
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| 100 | |
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| 101 | #endif |
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