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| Rev | Author | Line No. | Line |
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| 1160 | decky | 1 | /* |
| 2 | * Copyright (C) 2006 Martin Decky |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | #include <interrupt.h> |
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| 30 | #include <arch/interrupt.h> |
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| 31 | #include <arch/types.h> |
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| 32 | #include <arch.h> |
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| 33 | #include <time/clock.h> |
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| 1398 | decky | 34 | #include <ipc/sysipc.h> |
| 1160 | decky | 35 | |
| 36 | |||
| 37 | void start_decrementer(void) |
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| 38 | { |
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| 39 | asm volatile ( |
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| 40 | "mtdec %0\n" |
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| 1398 | decky | 41 | : |
| 42 | : "r" (1000) |
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| 1160 | decky | 43 | ); |
| 44 | } |
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| 45 | |||
| 46 | |||
| 47 | static void exception_decrementer(int n, istate_t *istate) |
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| 48 | { |
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| 49 | clock(); |
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| 50 | start_decrementer(); |
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| 51 | } |
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| 52 | |||
| 53 | |||
| 54 | /* Initialize basic tables for exception dispatching */ |
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| 55 | void interrupt_init(void) |
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| 56 | { |
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| 57 | exc_register(VECTOR_DECREMENTER, "timer", exception_decrementer); |
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| 58 | } |
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| 1398 | decky | 59 | |
| 60 | |||
| 61 | /* Reregister irq to be IPC-ready */ |
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| 62 | void irq_ipc_bind_arch(__native irq) |
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| 63 | { |
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| 64 | panic("not implemented\n"); |
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| 65 | /* TODO */ |
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| 66 | } |