1 | /* |
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2 | * RTEMS generic MPC83xx BSP |
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3 | * |
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4 | * This file integrates the IPIC irq controller. |
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5 | */ |
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6 | |
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7 | /* |
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8 | * Copyright (c) 2007 embedded brains GmbH. All rights reserved. |
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9 | * |
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10 | * The license and distribution terms for this file may be |
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11 | * found in the file LICENSE in this distribution or at |
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12 | * http://www.rtems.org/license/LICENSE. |
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13 | */ |
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14 | |
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15 | #include <rtems.h> |
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16 | |
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17 | #include <libcpu/powerpc-utility.h> |
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18 | |
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19 | #include <bsp.h> |
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20 | #include <bsp/irq.h> |
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21 | #include <bsp/irq-generic.h> |
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22 | #include <bsp/vectors.h> |
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23 | |
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24 | static int qemuppc_exception_handler( |
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25 | BSP_Exception_frame *frame, |
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26 | unsigned exception_number |
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27 | ) |
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28 | { |
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29 | rtems_panic("Unexpected interrupt occured"); |
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30 | return 0; |
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31 | } |
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32 | |
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33 | rtems_status_code bsp_interrupt_get_attributes( |
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34 | rtems_vector_number vector, |
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35 | rtems_interrupt_attributes *attributes |
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36 | ) |
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37 | { |
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38 | return RTEMS_SUCCESSFUL; |
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39 | } |
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40 | |
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41 | rtems_status_code bsp_interrupt_is_pending( |
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42 | rtems_vector_number vector, |
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43 | bool *pending |
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44 | ) |
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45 | { |
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46 | bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); |
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47 | bsp_interrupt_assert(pending != NULL); |
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48 | *pending = false; |
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49 | return RTEMS_UNSATISFIED; |
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50 | } |
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51 | |
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52 | rtems_status_code bsp_interrupt_raise(rtems_vector_number vector) |
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53 | { |
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54 | bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); |
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55 | return RTEMS_UNSATISFIED; |
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56 | } |
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57 | |
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58 | rtems_status_code bsp_interrupt_clear(rtems_vector_number vector) |
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59 | { |
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60 | bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); |
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61 | return RTEMS_UNSATISFIED; |
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62 | } |
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63 | |
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64 | rtems_status_code bsp_interrupt_vector_is_enabled( |
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65 | rtems_vector_number vector, |
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66 | bool *enabled |
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67 | ) |
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68 | { |
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69 | bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); |
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70 | bsp_interrupt_assert(enabled != NULL); |
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71 | *enabled = false; |
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72 | return RTEMS_UNSATISFIED; |
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73 | } |
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74 | |
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75 | /* |
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76 | * functions to enable/disable a source at the ipic |
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77 | */ |
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78 | rtems_status_code bsp_interrupt_vector_enable( rtems_vector_number irqnum) |
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79 | { |
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80 | /* FIXME: do something */ |
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81 | bsp_interrupt_assert(bsp_interrupt_is_valid_vector(irqnum)); |
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82 | return RTEMS_SUCCESSFUL; |
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83 | } |
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84 | |
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85 | rtems_status_code bsp_interrupt_vector_disable( rtems_vector_number irqnum) |
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86 | { |
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87 | /* FIXME: do something */ |
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88 | bsp_interrupt_assert(bsp_interrupt_is_valid_vector(irqnum)); |
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89 | return RTEMS_SUCCESSFUL; |
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90 | } |
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91 | |
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92 | void bsp_interrupt_facility_initialize(void) |
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93 | { |
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94 | rtems_status_code sc; |
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95 | |
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96 | /* Install exception handler */ |
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97 | sc = ppc_exc_set_handler( ASM_EXT_VECTOR, qemuppc_exception_handler); |
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98 | _Assert_Unused_variable_equals( sc, RTEMS_SUCCESSFUL); |
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99 | } |
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