1 | /** |
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2 | * @file irq.h |
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3 | * |
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4 | * This include file describe the data structure and the functions implemented |
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5 | * by rtems to write interrupt handlers. |
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6 | */ |
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7 | /* |
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8 | * RTEMS GBA BSP |
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9 | * |
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10 | * Copyright (c) 2004 Markku Puro <markku.puro@kopteri.net> |
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11 | * |
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12 | * The license and distribution terms for this file may be |
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13 | * found in found in the file LICENSE in this distribution or at |
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14 | * http://www.rtems.com/license/LICENSE. |
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15 | * |
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16 | * $Id$ |
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17 | */ |
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18 | |
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19 | #ifndef _IRQ_H_ |
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20 | #define _IRQ_H_ |
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21 | |
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22 | |
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23 | #ifdef __cplusplus |
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24 | extern "C" { |
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25 | #endif |
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26 | |
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27 | /* |
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28 | * Include some preprocessor value also used by assember code |
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29 | */ |
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30 | |
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31 | #define VECTOR_TABLE (&irq_vector_table[0]) |
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32 | |
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33 | #include <stdint.h> |
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34 | #include <rtems/irq.h> |
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35 | #include <rtems.h> |
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36 | |
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37 | extern void default_int_handler(rtems_irq_hdl_param unused); |
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38 | |
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39 | /*---------------------------------------------------------------------------* |
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40 | * MACROS * |
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41 | *---------------------------------------------------------------------------*/ |
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42 | |
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43 | #define ENABLE_IRQ() GBA_REG_IME = 1; |
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44 | #define DISABLE_IRQ() GBA_REG_IME = 0; |
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45 | |
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46 | |
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47 | /*-------------------------------------------------------------------------+ |
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48 | | Constants |
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49 | +--------------------------------------------------------------------------*/ |
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50 | |
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51 | typedef enum { |
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52 | BSP_IRQ_VBLANK = 0, |
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53 | BSP_IRQ_HBLANK = 1, |
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54 | BSP_IRQ_VCOUNTER = 2, |
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55 | BSP_IRQ_TIMER0 = 3, |
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56 | BSP_IRQ_TIMER1 = 4, |
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57 | BSP_IRQ_TIMER2 = 5, |
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58 | BSP_IRQ_TIMER3 = 6, |
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59 | BSP_IRQ_SERIAL = 7, |
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60 | BSP_IRQ_DMA0 = 8, |
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61 | BSP_IRQ_DMA1 = 9, |
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62 | BSP_IRQ_DMA2 = 10, |
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63 | BSP_IRQ_DMA3 = 11, |
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64 | BSP_IRQ_KEY = 12, |
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65 | BSP_IRQ_CART = 13, |
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66 | BSP_IRQ_NA14 = 14, |
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67 | BSP_IRQ_NA15 = 15, |
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68 | BSP_MAX_INT = 16 /**< BSP_MAX_INT <= _irq_max_vector in linkcmds */ |
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69 | } rtems_irq_symbolic_name; |
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70 | |
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71 | |
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72 | extern void _irq_max_vector; /**< defined in lincmds */ |
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73 | extern uint32_t irq_vector_table[BSP_MAX_INT]; /**< allocated in linkcmds */ |
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74 | |
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75 | /*-------------------------------------------------------------------------+ |
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76 | | Function Prototypes. |
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77 | +--------------------------------------------------------------------------*/ |
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78 | /* |
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79 | * ------------------------ RTEMS Single Irq Handler Mngt Routines ---------------- |
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80 | */ |
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81 | |
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82 | /** |
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83 | * @brief function to initialize the interrupt for a specific BSP |
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84 | */ |
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85 | void BSP_rtems_irq_mngt_init(); |
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86 | |
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87 | #ifdef __cplusplus |
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88 | } |
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89 | #endif |
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90 | |
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91 | #endif /* _IRQ_H_ */ |
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