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431 | jermar | 1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
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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 | */ |
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29 | |||
30 | #include <arch/interrupt.h> |
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31 | #include <panic.h> |
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433 | jermar | 32 | #include <print.h> |
431 | jermar | 33 | #include <arch/types.h> |
34 | #include <arch/asm.h> |
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35 | #include <arch/barrier.h> |
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432 | jermar | 36 | #include <arch/register.h> |
435 | jermar | 37 | #include <arch/drivers/it.h> |
433 | jermar | 38 | #include <arch.h> |
431 | jermar | 39 | |
40 | void external_interrupt(void) |
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41 | { |
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433 | jermar | 42 | cr_ivr_t ivr; |
431 | jermar | 43 | |
433 | jermar | 44 | ivr.value = ivr_read(); |
431 | jermar | 45 | srlz_d(); |
46 | |||
434 | jermar | 47 | switch(ivr.vector) { |
433 | jermar | 48 | case INTERRUPT_TIMER: |
435 | jermar | 49 | it_interrupt(); |
433 | jermar | 50 | panic("cpu%d: timer interrupt\n", CPU->id); |
51 | break; |
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52 | case INTERRUPT_SPURIOUS: |
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53 | printf("cpu%d: spurious interrupt\n", CPU->id); |
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54 | break; |
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431 | jermar | 55 | default: |
433 | jermar | 56 | panic("\nUnhandled External Interrupt Vector %d\n", ivr.vector); |
57 | break; |
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431 | jermar | 58 | } |
59 | } |