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/*
* Copyright (c) 2025 Ian Marco Moffett and L5 engineers
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MACHINE_IOAPIC_H_
#define _MACHINE_IOAPIC_H_ 1
/* Mask arguments for ioapic_gsi_mask() */
#define IOAPIC_PIN_MASK 1
#define IOAPIC_PIN_UNMASK 0
/*
* Initialize the I/O APIC into a basic state,
* all interrupts will be masked.
*/
void ioapic_init(void);
/*
* Mask or unmask a global system interrupt by index
*
* @gsi: Global system interrupt to mask
* @mask: 1->masked,0->unmasked
*/
void ioapic_gsi_mask(uint8_t gsi, uint8_t mask);
/*
* Route an IRQ number to a system interrupt vector
* via the internal redirection table
*
* @irq: Global system interrupt to route
* @vector: Vector this GSI should map to
*/
void ioapic_route_vec(uint8_t irq, uint8_t vector);
#endif /* !_MACHINE_IOAPIC_H_ */
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