1 | /* set_vector |
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2 | * |
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3 | * This routine installs an interrupt vector on the HP PA-RISC simulator. |
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4 | * |
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5 | * INPUT: |
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6 | * handler - interrupt handler entry point |
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7 | * vector - vector number |
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8 | * type - 0 indicates raw hardware connect |
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9 | * 1 indicates RTEMS interrupt connect |
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10 | * |
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11 | * NOTE 'type' is ignored on hppa; all interrupts are owned by RTEMS |
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12 | * |
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13 | * RETURNS: |
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14 | * address of previous interrupt handler |
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15 | * |
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16 | * COPYRIGHT (c) 1989-1999. |
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17 | * On-Line Applications Research Corporation (OAR). |
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18 | * |
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19 | * The license and distribution terms for this file may be |
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20 | * found in the file LICENSE in this distribution or at |
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21 | * http://www.rtems.com/license/LICENSE. |
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22 | * |
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23 | * $Id$ |
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24 | */ |
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25 | |
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26 | #include <bsp.h> |
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27 | |
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28 | /* |
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29 | * Install an interrupt handler in the right place |
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30 | * given its vector number from cpu/hppa.h |
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31 | * There are 2 places an interrupt can be installed |
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32 | * _ISR_Vector_table |
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33 | * bsp interrupt XXX: nyi |
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34 | * |
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35 | * We decide which based on the vector number |
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36 | */ |
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37 | |
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38 | rtems_isr_entry |
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39 | set_vector( /* returns old vector */ |
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40 | rtems_isr_entry handler, /* isr routine */ |
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41 | rtems_vector_number vector, /* vector number */ |
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42 | int type /* RTEMS or RAW intr */ |
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43 | ) |
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44 | { |
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45 | rtems_isr_entry previous_isr; |
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46 | |
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47 | /* is it an on chip interrupt? */ |
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48 | /* XXX this should say CPU_INTERRUPT_NUMBER_OF_VECTORS */ |
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49 | if (vector < HPPA_INTERRUPT_MAX) |
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50 | { |
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51 | rtems_interrupt_catch(handler, vector, &previous_isr); |
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52 | } |
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53 | #if 0 /* XXX */ |
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54 | else if ((vector >= HPPA_INTERRUPT_BSP_BASE) && |
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55 | (vector < (HPPA_INTERRUPT_BSP_BASE + HPPA_BSP_INTERRUPTS))) |
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56 | { |
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57 | pxfl_interrupt_install(handler, |
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58 | vector - HPPA_INTERRUPT_BSP_BASE, |
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59 | (rtems_isr_entry *) &previous_isr); |
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60 | } |
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61 | #endif |
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62 | |
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63 | return previous_isr; |
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64 | } |
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65 | |
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