1 | /* |
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2 | * Intel i960CA Dependent Source |
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3 | * |
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4 | * |
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5 | * COPYRIGHT (c) 1989-1999. |
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6 | * On-Line Applications Research Corporation (OAR). |
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7 | * |
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8 | * The license and distribution terms for this file may be |
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9 | * found in the file LICENSE in this distribution or at |
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10 | * http://www.OARcorp.com/rtems/license.html. |
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11 | * |
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12 | * $Id$ |
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13 | */ |
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14 | |
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15 | #include <rtems/system.h> |
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16 | #include <rtems/score/isr.h> |
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17 | |
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18 | /* _CPU_Initialize |
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19 | * |
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20 | * This routine performs processor dependent initialization. |
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21 | * |
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22 | * INPUT PARAMETERS: |
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23 | * cpu_table - CPU table to initialize |
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24 | * thread_dispatch - address of disptaching routine |
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25 | * |
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26 | * OUTPUT PARAMETERS: NONE |
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27 | */ |
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28 | |
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29 | void _CPU_Initialize( |
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30 | rtems_cpu_table *cpu_table, |
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31 | void (*thread_dispatch) /* ignored on this CPU */ |
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32 | ) |
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33 | { |
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34 | |
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35 | _CPU_Table = *cpu_table; |
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36 | |
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37 | } |
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38 | |
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39 | /*PAGE |
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40 | * |
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41 | * _CPU_ISR_Get_level |
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42 | */ |
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43 | |
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44 | unsigned32 _CPU_ISR_Get_level( void ) |
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45 | { |
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46 | unsigned32 level; |
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47 | |
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48 | i960_get_interrupt_level( level ); |
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49 | |
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50 | return level; |
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51 | } |
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52 | |
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53 | /*PAGE |
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54 | * |
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55 | * _CPU__ISR_install_vector |
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56 | * |
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57 | * Install the RTEMS vector wrapper in the CPU's interrupt table. |
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58 | * |
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59 | * Input parameters: |
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60 | * vector - interrupt vector number |
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61 | * old_handler - former ISR for this vector number |
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62 | * new_handler - replacement ISR for this vector number |
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63 | * |
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64 | * Output parameters: NONE |
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65 | * |
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66 | */ |
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67 | |
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68 | void _CPU_ISR_install_vector( |
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69 | unsigned32 vector, |
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70 | proc_ptr new_handler, |
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71 | proc_ptr *old_handler |
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72 | ) |
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73 | { |
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74 | proc_ptr ignored; |
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75 | |
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76 | *old_handler = _ISR_Vector_table[ vector ]; |
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77 | |
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78 | _CPU_ISR_install_raw_handler( vector, _ISR_Handler, &ignored ); |
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79 | |
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80 | _ISR_Vector_table[ vector ] = new_handler; |
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81 | } |
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