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78cab3b3ad
- ASM interrupt support for ARM targets which eliminates the need for buggy GCC __attribute__ ((interrupt ("IRQ"))) functions
- code refactoring
40 lines
1.0 KiB
C
40 lines
1.0 KiB
C
// eLua interrupt handlers support
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#ifndef __ELUA_INT_H__
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#define __ELUA_INT_H__
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#include "type.h"
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typedef u8 elua_int_id;
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// The resource number is a 16-bit integer because it must be able to hold a
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// port/pin combination coded as specified in platform.h
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typedef u16 elua_int_resnum;
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#define ELUA_INT_EMPTY_SLOT 0
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#define ELUA_INT_FIRST_ID 1
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#define ELUA_INT_INVALID_INTERRUPT 0xFF
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// This is what gets pushed in the interrupt queue
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typedef struct
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{
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elua_int_id id;
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elua_int_resnum resnum;
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} elua_int_element;
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// Handler key in the registry
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#define LUA_INT_HANDLER_KEY ( int )&elua_int_add
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// Maximum number of interrupt sources that can appear in ANY backend
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// Must be a multiple of 32
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#define LUA_INT_MAX_SOURCES 128
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// Function prototypes
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int elua_int_add( elua_int_id inttype, elua_int_resnum resnum );
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void elua_int_enable( elua_int_id inttype );
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void elua_int_disable( elua_int_id inttype );
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int elua_int_is_enabled( elua_int_id inttype );
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void elua_int_disable_all();
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#endif
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