4.104.114.84.95
Last change
on this file since 5c27c80 was
5c27c80,
checked in by Joel Sherrill <joel.sherrill@…>, on 01/12/01 at 13:38:01
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2001-01-12 Joel Sherrill <joel@…>
- r46xx/vectorisrs/vectorisrs.c (mips_get_cause): Corrected
constraints from general to register.
- tx39/vectorisrs/vectorisrs.c (mips_get_cause): Corrected
constraints from general to register.
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-
Property mode set to
100644
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File size:
1.1 KB
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Line | |
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1 | /* |
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2 | * $Id$ |
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3 | */ |
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4 | |
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5 | #include <rtems.h> |
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6 | #include <stdlib.h> |
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7 | #include <libcpu/tx3904.h> |
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8 | |
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9 | #define mips_get_cause( _cause ) \ |
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10 | do { \ |
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11 | asm volatile( "mfc0 %0, $13; nop" : "=r" (_cause) : ); \ |
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12 | } while (0) |
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13 | |
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14 | #define CALL_ISR(_vector) \ |
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15 | do { \ |
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16 | if ( _ISR_Vector_table[_vector] ) \ |
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17 | (_ISR_Vector_table[_vector])(_vector); \ |
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18 | else \ |
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19 | mips_default_exception(_vector); \ |
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20 | } while (0) |
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21 | |
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22 | void mips_default_exception( int vector ) |
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23 | { |
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24 | printk( "Unhandled exception %d\n", vector ); |
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25 | rtems_fatal_error_occurred(1); |
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26 | } |
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27 | |
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28 | void mips_vector_isr_handlers( void ) |
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29 | { |
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30 | unsigned int sr; |
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31 | unsigned int cause; |
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32 | |
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33 | mips_get_sr( sr ); |
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34 | mips_get_cause( cause ); |
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35 | |
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36 | cause &= (sr & SR_IMASK); |
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37 | cause >>= CAUSE_IPSHIFT; |
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38 | |
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39 | if ( cause & 0x80 ) /* IP[5] ==> INT0 */ |
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40 | CALL_ISR( TX3904_IRQ_INT0 ); |
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41 | |
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42 | if ( cause & 0x40 ) { /* (IP[4] == 1) ==> IP[0-3] are valid */ |
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43 | unsigned int v = (cause >> 2) & 0x0f; |
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44 | CALL_ISR( v ); |
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45 | } |
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46 | |
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47 | if ( cause & 0x02 ) /* SW[0] */ |
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48 | CALL_ISR( TX3904_IRQ_SOFTWARE_1 ); |
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49 | |
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50 | if ( cause & 0x01 ) /* IP[1] */ |
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51 | CALL_ISR( TX3904_IRQ_SOFTWARE_2 ); |
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52 | } |
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