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/*
* Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
* 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 Hyra 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 _AMD64_LAPIC_H_
#define _AMD64_LAPIC_H_
#include <sys/types.h>
#define LAPIC_TMR_ONESHOT 0x00
#define LAPIC_TMR_PERIODIC 0x01
/* IPI Destination Shorthands */
enum {
IPI_SHORTHAND_NONE,
IPI_SHORTHAND_SELF,
IPI_SHORTHAND_ALL,
IPI_SHORTHAND_OTHERS
};
/* IPI Destination Modes */
enum {
IPI_DEST_PHYSICAL,
IPI_DEST_LOGICAL
};
void lapic_timer_init(size_t *freq_out);
void lapic_timer_oneshot(bool mask, uint32_t count);
void lapic_timer_oneshot_us(size_t us);
void lapic_send_ipi(uint8_t id, uint8_t shorthand, uint8_t vector);
void lapic_send_eoi(void);
void lapic_init(void);
#endif /* !_AMD64_LAPIC_H_ */
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