1 #ifndef CYGONCE_HAL_XPIC_H
2 #define CYGONCE_HAL_XPIC_H
4 //=============================================================================
8 // HAL eXternal Programmable Interrupt Controller support
10 //=============================================================================
11 //####ECOSGPLCOPYRIGHTBEGIN####
12 // -------------------------------------------
13 // This file is part of eCos, the Embedded Configurable Operating System.
14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
16 // eCos is free software; you can redistribute it and/or modify it under
17 // the terms of the GNU General Public License as published by the Free
18 // Software Foundation; either version 2 or (at your option) any later version.
20 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
21 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
25 // You should have received a copy of the GNU General Public License along
26 // with eCos; if not, write to the Free Software Foundation, Inc.,
27 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
29 // As a special exception, if other files instantiate templates or use macros
30 // or inline functions from this file, or you compile this file and link it
31 // with other works to produce a work based on this file, this file does not
32 // by itself cause the resulting work to be covered by the GNU General Public
33 // License. However the source code for this file must still be made available
34 // in accordance with section (3) of the GNU General Public License.
36 // This exception does not invalidate any other reasons why a work based on
37 // this file might be covered by the GNU General Public License.
39 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
40 // at http://sources.redhat.com/ecos/ecos-license/
41 // -------------------------------------------
42 //####ECOSGPLCOPYRIGHTEND####
43 //=============================================================================
44 //#####DESCRIPTIONBEGIN####
46 // Author(s): nickg, gthomas, hmt
47 // Contributors: nickg, gthomas, hmt
49 // Purpose: Define Interrupt support
50 // Description: The macros defined here provide the HAL APIs for handling
51 // an external interrupt controller, and which interrupt is
55 // #include <cyg/hal/hal_intr.h> // which includes this file
59 //####DESCRIPTIONEND####
61 //=============================================================================
63 #include <cyg/hal/hal_io.h>
65 //-----------------------------------------------------------------------------
66 // Interrupt controller access
68 // in erc32 simulator:
72 // 12 = GPT (general purpose timer)
73 // 13 = RTC (realtime clock)
76 // The vector used by the Real time clock
77 #define CYGNUM_HAL_INTERRUPT_RTC CYGNUM_HAL_INTERRUPT_13
80 /* These must be accessed word-wide to work! */
81 #define SPARC_MEC_INTCON (0x01f80000)
83 #define SPARC_MEC_INTCON_PENDING (SPARC_MEC_INTCON + 0x48)
84 #define SPARC_MEC_INTCON_MASK (SPARC_MEC_INTCON + 0x4c)
85 #define SPARC_MEC_INTCON_CLEAR (SPARC_MEC_INTCON + 0x50)
86 #define SPARC_MEC_INTCON_FORCE (SPARC_MEC_INTCON + 0x54)
89 #define HAL_INTERRUPT_MASK( _vector_ ) CYG_MACRO_START \
90 cyg_uint32 _traps_, _mask_; \
91 HAL_DISABLE_TRAPS( _traps_ ); \
92 HAL_READ_UINT32( SPARC_MEC_INTCON_MASK, _mask_ ); \
93 _mask_ |= ( 1 << (_vector_) ); \
94 HAL_WRITE_UINT32(SPARC_MEC_INTCON_MASK, _mask_ ); \
95 HAL_RESTORE_INTERRUPTS( _traps_ ); \
98 #define HAL_INTERRUPT_UNMASK( _vector_ ) CYG_MACRO_START \
99 cyg_uint32 _traps_, _mask_; \
100 HAL_DISABLE_TRAPS( _traps_ ); \
101 HAL_READ_UINT32( SPARC_MEC_INTCON_MASK, _mask_ ); \
102 _mask_ &=~ ( 1 << (_vector_) ); \
103 HAL_WRITE_UINT32( SPARC_MEC_INTCON_MASK, _mask_ ); \
104 HAL_RESTORE_INTERRUPTS( _traps_ ); \
107 #define HAL_INTERRUPT_ACKNOWLEDGE( _vector_ ) CYG_MACRO_START \
108 cyg_uint32 _traps_; \
109 HAL_DISABLE_TRAPS( _traps_ ); \
110 HAL_WRITE_UINT32( SPARC_MEC_INTCON_CLEAR, ( 1 << (_vector_) ) ); \
111 HAL_RESTORE_INTERRUPTS( _traps_ ); \
114 #define HAL_INTERRUPT_CONFIGURE( _vector_, _level_, _up_ ) /* nothing */
116 #define HAL_INTERRUPT_SET_LEVEL( _vector_, _level_ ) /* nothing */
118 //-----------------------------------------------------------------------------
119 #endif // ifndef CYGONCE_HAL_XPIC_H