[apple/xnu.git] / pexpert / i386 / pe_interrupt.c

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
#include <pexpert/pexpert.h>
#include <pexpert/protos.h>
#include <machine/machine_routines.h>
#include <sys/kdebug.h>

struct i386_interrupt_handler {
	IOInterruptHandler	handler;
	void			*nub;
	void			*target;
	void			*refCon;
};

typedef struct i386_interrupt_handler i386_interrupt_handler_t;

i386_interrupt_handler_t	PE_interrupt_handler;

void PE_platform_interrupt_initialize(void)
{
}

void
PE_incoming_interrupt(int interrupt, void *eip)
{
	boolean_t		save_int;
	i386_interrupt_handler_t	*vector;

	KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_INTR, 0) | DBG_FUNC_START,
	   0, (unsigned int)eip, 0, 0, 0);

	vector = &PE_interrupt_handler;
	save_int  = ml_set_interrupts_enabled(FALSE);
	vector->handler(vector->target, vector->refCon, vector->nub, interrupt);
	ml_set_interrupts_enabled(save_int);

	KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_INTR, 0) | DBG_FUNC_END,
	   0, 0, 0, 0, 0);

}

void PE_install_interrupt_handler(void *nub, int source,
				  void *target,
				  IOInterruptHandler handler,
				  void *refCon)
{
	i386_interrupt_handler_t	*vector;

	vector = &PE_interrupt_handler;

	/*vector->source = source; IGNORED */
	vector->handler = handler;
	vector->nub = nub;
	vector->target = target;
	vector->refCon = refCon;
}
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	#include <pexpert/pexpert.h>
	23	#include <pexpert/protos.h>
	24	#include <machine/machine_routines.h>
9bccf70c	25	#include <sys/kdebug.h>
1c79356b A	26
	27	struct i386_interrupt_handler {
	28	IOInterruptHandler handler;
	29	void *nub;
	30	void *target;
	31	void *refCon;
	32	};
	33
	34	typedef struct i386_interrupt_handler i386_interrupt_handler_t;
	35
	36	i386_interrupt_handler_t PE_interrupt_handler;
	37
	38	void PE_platform_interrupt_initialize(void)
	39	{
	40	}
	41
	42	void
9bccf70c	43	PE_incoming_interrupt(int interrupt, void *eip)
1c79356b A	44	{
1c79356b A	45	boolean_t save_int;
1c79356b A	46	i386_interrupt_handler_t *vector;
1c79356b A	47
9bccf70c A	48	KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_INTR, 0) \| DBG_FUNC_START,
9bccf70c A	49	0, (unsigned int)eip, 0, 0, 0);
1c79356b	50
9bccf70c	51	vector = &PE_interrupt_handler;
1c79356b A	52	save_int = ml_set_interrupts_enabled(FALSE);
	53	vector->handler(vector->target, vector->refCon, vector->nub, interrupt);
	54	ml_set_interrupts_enabled(save_int);
9bccf70c A	55
	56	KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_INTR, 0) \| DBG_FUNC_END,
	57	0, 0, 0, 0, 0);
	58
1c79356b A	59	}
	60
	61	void PE_install_interrupt_handler(void *nub, int source,
	62	void *target,
	63	IOInterruptHandler handler,
	64	void *refCon)
	65	{
	66	i386_interrupt_handler_t *vector;
	67
	68	vector = &PE_interrupt_handler;
	69
	70	/vector->source = source; IGNORED /
	71	vector->handler = handler;
	72	vector->nub = nub;
	73	vector->target = target;
	74	vector->refCon = refCon;
	75	}