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annotate packages/hal/sparclite/sim/current/include/hal_xpic.h @ 66:bf00f99aec69 ecos-sw-2000-02-02

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Merge from eCos master repository on 2000-02-02-19:16:44-GMT
author jlarmour
date Wed, 02 Feb 2000 19:57:02 +0000
parents c38311975d4f
children e0c0827131d1
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1 #ifndef CYGONCE_HAL_XPIC_H
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2 #define CYGONCE_HAL_XPIC_H
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3
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4 //=============================================================================
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5 //
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6 // hal_xpic.h
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7 //
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8 // HAL eXternal Programmable Interrupt Controller support
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9 //
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10 //=============================================================================
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11 //####COPYRIGHTBEGIN####
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12 //
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13 // -------------------------------------------
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14 // The contents of this file are subject to the Red Hat eCos Public License
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15 // Version 1.1 (the "License"); you may not use this file except in
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16 // compliance with the License. You may obtain a copy of the License at
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17 // http://www.redhat.com/
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18 //
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19 // Software distributed under the License is distributed on an "AS IS"
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20 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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21 // License for the specific language governing rights and limitations under
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22 // the License.
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23 //
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24 // The Original Code is eCos - Embedded Configurable Operating System,
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25 // released September 30, 1998.
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26 //
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27 // The Initial Developer of the Original Code is Red Hat.
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28 // Portions created by Red Hat are
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29 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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30 // All Rights Reserved.
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31 // -------------------------------------------
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32 //
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33 //####COPYRIGHTEND####
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34 //=============================================================================
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35 //#####DESCRIPTIONBEGIN####
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36 //
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37 // Author(s): nickg, gthomas, hmt
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38 // Contributors: nickg, gthomas, hmt
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39 // Date: 1999-01-28
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40 // Purpose: Define Interrupt support
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41 // Description: The macros defined here provide the HAL APIs for handling
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42 // an external interrupt controller, and which interrupt is
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43 // used for what.
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44 //
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45 // Usage:
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46 // #include <cyg/hal/hal_intr.h> // which includes this file
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47 // ...
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48 //
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49 //
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50 //####DESCRIPTIONEND####
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51 //
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52 //=============================================================================
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53
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54 #include <cyg/hal/hal_io.h>
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55
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56 //-----------------------------------------------------------------------------
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57 // Interrupt controller access
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58
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59 // in erc32 simulator:
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60 // 4 = UART A
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61 // 5 = UART B
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62 // 7 = UART error
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63 // 12 = GPT (general purpose timer)
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64 // 13 = RTC (realtime clock)
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65 // 15 = watchdog
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66
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67 // The vector used by the Real time clock
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68 #define CYGNUM_HAL_INTERRUPT_RTC CYGNUM_HAL_INTERRUPT_13
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69
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70
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71 /* These must be accessed word-wide to work! */
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72 #define SPARC_MEC_INTCON (0x01f80000)
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73
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74 #define SPARC_MEC_INTCON_PENDING (SPARC_MEC_INTCON + 0x48)
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75 #define SPARC_MEC_INTCON_MASK (SPARC_MEC_INTCON + 0x4c)
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76 #define SPARC_MEC_INTCON_CLEAR (SPARC_MEC_INTCON + 0x50)
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77 #define SPARC_MEC_INTCON_FORCE (SPARC_MEC_INTCON + 0x54)
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80 #define HAL_INTERRUPT_MASK( _vector_ ) CYG_MACRO_START \
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81 cyg_uint32 _traps_, _mask_; \
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82 HAL_DISABLE_TRAPS( _traps_ ); \
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83 HAL_READ_UINT32( SPARC_MEC_INTCON_MASK, _mask_ ); \
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84 _mask_ |= ( 1 << (_vector_) ); \
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85 HAL_WRITE_UINT32(SPARC_MEC_INTCON_MASK, _mask_ ); \
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86 HAL_RESTORE_INTERRUPTS( _traps_ ); \
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87 CYG_MACRO_END
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88
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89 #define HAL_INTERRUPT_UNMASK( _vector_ ) CYG_MACRO_START \
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90 cyg_uint32 _traps_, _mask_; \
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91 HAL_DISABLE_TRAPS( _traps_ ); \
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92 HAL_READ_UINT32( SPARC_MEC_INTCON_MASK, _mask_ ); \
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93 _mask_ &=~ ( 1 << (_vector_) ); \
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94 HAL_WRITE_UINT32( SPARC_MEC_INTCON_MASK, _mask_ ); \
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95 HAL_RESTORE_INTERRUPTS( _traps_ ); \
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96 CYG_MACRO_END
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97
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98 #define HAL_INTERRUPT_ACKNOWLEDGE( _vector_ ) CYG_MACRO_START \
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99 cyg_uint32 _traps_; \
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100 HAL_DISABLE_TRAPS( _traps_ ); \
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101 HAL_WRITE_UINT32( SPARC_MEC_INTCON_CLEAR, ( 1 << (_vector_) ) ); \
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102 HAL_RESTORE_INTERRUPTS( _traps_ ); \
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103 CYG_MACRO_END
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104
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105 #define HAL_INTERRUPT_CONFIGURE( _vector_, _level_, _up_ ) /* nothing */
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106
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107 #define HAL_INTERRUPT_SET_LEVEL( _vector_, _level_ ) /* nothing */
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108
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109 //-----------------------------------------------------------------------------
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110 #endif // ifndef CYGONCE_HAL_XPIC_H
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111 // End of hal_xpic.h