1 | /* |
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2 | * Interrupt handler Header file |
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3 | * |
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4 | * Copyright (c) 2004 by Jay Monkman <jtm@lopingdog.com> |
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5 | * |
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6 | * The license and distribution terms for this file may be |
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7 | * found in the file LICENSE in this distribution or at |
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8 | * |
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9 | * http://www.OARcorp.com/rtems/license.html. |
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10 | * |
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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 | #ifndef __IRQ_H__ |
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16 | #define __IRQ_H__ |
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17 | |
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18 | #ifdef __cplusplus |
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19 | extern "C" { |
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20 | #endif |
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21 | |
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22 | #ifndef __asm__ |
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23 | |
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24 | /* |
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25 | * Include some preprocessor value also used by assember code |
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26 | */ |
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27 | |
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28 | #include <rtems.h> |
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29 | #include <at91rm9200.h> |
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30 | |
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31 | extern void default_int_handler(); |
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32 | /*********************************************************************** |
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33 | * Constants |
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34 | **********************************************************************/ |
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35 | /* enum of the possible interrupt sources on the AT91RM9200 */ |
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36 | typedef enum { |
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37 | AT91RM9200_INT_FIQ = 0, |
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38 | AT91RM9200_INT_SYSIRQ, |
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39 | AT91RM9200_INT_PIOA, |
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40 | AT91RM9200_INT_PIOB, |
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41 | AT91RM9200_INT_PIOC, |
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42 | AT91RM9200_INT_PIOD, |
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43 | AT91RM9200_INT_US0, |
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44 | AT91RM9200_INT_US1, |
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45 | AT91RM9200_INT_US2, |
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46 | AT91RM9200_INT_US3, |
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47 | AT91RM9200_INT_MCI, |
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48 | AT91RM9200_INT_UDP, |
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49 | AT91RM9200_INT_TWI, |
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50 | AT91RM9200_INT_SPI, |
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51 | AT91RM9200_INT_SSC0, |
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52 | AT91RM9200_INT_SSC1, |
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53 | AT91RM9200_INT_SSC2, |
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54 | AT91RM9200_INT_TC0, |
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55 | AT91RM9200_INT_TC1, |
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56 | AT91RM9200_INT_TC2, |
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57 | AT91RM9200_INT_TC3, |
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58 | AT91RM9200_INT_TC4, |
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59 | AT91RM9200_INT_TC5, |
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60 | AT91RM9200_INT_UHP, |
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61 | AT91RM9200_INT_EMAC, |
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62 | AT91RM9200_INT_IRQ0, |
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63 | AT91RM9200_INT_IRQ1, |
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64 | AT91RM9200_INT_IRQ2, |
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65 | AT91RM9200_INT_IRQ3, |
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66 | AT91RM9200_INT_IRQ4, |
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67 | AT91RM9200_INT_IRQ5, |
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68 | AT91RM9200_INT_IRQ6, |
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69 | AT91RM9200_MAX_INT |
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70 | } rtems_irq_symbolic_name; |
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71 | |
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72 | /* vector table used by shared/irq_init.c */ |
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73 | /* we can treat the AT91RM9200 AIC_SVR_BASE as */ |
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74 | /* a vector table */ |
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75 | #define VECTOR_TABLE AIC_SVR_BASE |
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76 | |
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77 | typedef unsigned char rtems_irq_level; |
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78 | typedef unsigned char rtems_irq_trigger; |
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79 | |
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80 | struct __rtems_irq_connect_data__; /* forward declaratiuon */ |
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81 | |
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82 | typedef void (*rtems_irq_hdl) (void); |
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83 | typedef void (*rtems_irq_enable) (const struct __rtems_irq_connect_data__*); |
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84 | typedef void (*rtems_irq_disable) (const struct __rtems_irq_connect_data__*); |
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85 | typedef int (*rtems_irq_is_enabled)(const struct __rtems_irq_connect_data__*); |
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86 | |
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87 | typedef struct __rtems_irq_connect_data__ { |
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88 | /* IRQ line */ |
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89 | rtems_irq_symbolic_name name; |
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90 | |
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91 | /* Handler */ |
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92 | rtems_irq_hdl hdl; |
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93 | |
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94 | /* function for enabling interrupts at device level. */ |
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95 | rtems_irq_enable on; |
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96 | |
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97 | /* function for disabling interrupts at device level. */ |
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98 | rtems_irq_disable off; |
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99 | |
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100 | /* Function to test if interrupt is enabled */ |
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101 | rtems_irq_is_enabled isOn; |
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102 | |
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103 | /* priority level of interrupt */ |
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104 | rtems_irq_level irqLevel; |
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105 | |
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106 | /* Trigger method (rising/falling edge or high/low level) */ |
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107 | rtems_irq_trigger irqTrigger; |
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108 | } rtems_irq_connect_data; |
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109 | |
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110 | /* |
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111 | * function to initialize the interrupt for a specific BSP |
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112 | */ |
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113 | void BSP_rtems_irq_mngt_init(); |
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114 | |
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115 | |
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116 | /* |
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117 | * function to connect a particular irq handler. |
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118 | */ |
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119 | int BSP_install_rtems_irq_handler (const rtems_irq_connect_data*); |
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120 | |
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121 | /* |
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122 | * function to get the current RTEMS irq handler for ptr->name. |
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123 | */ |
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124 | int BSP_get_current_rtems_irq_handler (rtems_irq_connect_data* ptr); |
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125 | |
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126 | /* |
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127 | * function to disconnect the RTEMS irq handler for ptr->name. |
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128 | */ |
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129 | int BSP_remove_rtems_irq_handler (const rtems_irq_connect_data*); |
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130 | |
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131 | #endif /* __asm__ */ |
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132 | |
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133 | #ifdef __cplusplus |
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134 | } |
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135 | #endif |
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136 | |
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137 | #endif /* __IRQ_H__ */ |
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