1*0efad4acSJessica Clarke /*- 2*0efad4acSJessica Clarke * SPDX-License-Identifier: BSD-2-Clause 3*0efad4acSJessica Clarke * 4*0efad4acSJessica Clarke * Copyright (c) 2014 Hudson River Trading LLC 5*0efad4acSJessica Clarke * Written by: John H. Baldwin <jhb@FreeBSD.org> 6*0efad4acSJessica Clarke * All rights reserved. 7*0efad4acSJessica Clarke * 8*0efad4acSJessica Clarke * Redistribution and use in source and binary forms, with or without 9*0efad4acSJessica Clarke * modification, are permitted provided that the following conditions 10*0efad4acSJessica Clarke * are met: 11*0efad4acSJessica Clarke * 1. Redistributions of source code must retain the above copyright 12*0efad4acSJessica Clarke * notice, this list of conditions and the following disclaimer. 13*0efad4acSJessica Clarke * 2. Redistributions in binary form must reproduce the above copyright 14*0efad4acSJessica Clarke * notice, this list of conditions and the following disclaimer in the 15*0efad4acSJessica Clarke * documentation and/or other materials provided with the distribution. 16*0efad4acSJessica Clarke * 17*0efad4acSJessica Clarke * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18*0efad4acSJessica Clarke * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19*0efad4acSJessica Clarke * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20*0efad4acSJessica Clarke * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21*0efad4acSJessica Clarke * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22*0efad4acSJessica Clarke * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23*0efad4acSJessica Clarke * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24*0efad4acSJessica Clarke * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25*0efad4acSJessica Clarke * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26*0efad4acSJessica Clarke * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27*0efad4acSJessica Clarke * SUCH DAMAGE. 28*0efad4acSJessica Clarke */ 29*0efad4acSJessica Clarke 30*0efad4acSJessica Clarke #ifndef __PCI_IRQ_MD_H__ 31*0efad4acSJessica Clarke #define __PCI_IRQ_MD_H__ 32*0efad4acSJessica Clarke 33*0efad4acSJessica Clarke struct vmctx; 34*0efad4acSJessica Clarke 35*0efad4acSJessica Clarke struct pci_irq { 36*0efad4acSJessica Clarke int pirq_pin; 37*0efad4acSJessica Clarke int ioapic_irq; 38*0efad4acSJessica Clarke }; 39*0efad4acSJessica Clarke 40*0efad4acSJessica Clarke void pci_irq_init(struct vmctx *ctx); 41*0efad4acSJessica Clarke void pci_irq_reserve(int irq); 42*0efad4acSJessica Clarke void pci_irq_use(int irq); 43*0efad4acSJessica Clarke int pirq_irq(int pin); 44*0efad4acSJessica Clarke uint8_t pirq_read(int pin); 45*0efad4acSJessica Clarke void pirq_write(struct vmctx *ctx, int pin, uint8_t val); 46*0efad4acSJessica Clarke 47*0efad4acSJessica Clarke static inline void 48*0efad4acSJessica Clarke pci_irq_init_irq(struct pci_irq *irq) 49*0efad4acSJessica Clarke { 50*0efad4acSJessica Clarke irq->pirq_pin = 0; 51*0efad4acSJessica Clarke irq->ioapic_irq = 0; 52*0efad4acSJessica Clarke } 53*0efad4acSJessica Clarke 54*0efad4acSJessica Clarke static inline uint8_t 55*0efad4acSJessica Clarke pci_irq_intline(struct pci_irq *irq) 56*0efad4acSJessica Clarke { 57*0efad4acSJessica Clarke return (pirq_irq(irq->pirq_pin)); 58*0efad4acSJessica Clarke } 59*0efad4acSJessica Clarke 60*0efad4acSJessica Clarke #endif 61