1/*- 2 * Copyright (c) 2013 Antti Kantee. All Rights Reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 14 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26#include <mini-os/os.h> 27#include <mini-os/ioremap.h> 28#include <mini-os/pcifront.h> 29#include <mini-os/events.h> 30#include <mini-os/mm.h> 31#include <mini-os/hypervisor.h> 32 33#include <bmk-core/errno.h> 34#include <bmk-core/memalloc.h> 35 36#include "pci_user.h" 37 38void * 39rumpcomp_pci_map(unsigned long addr, unsigned long len) 40{ 41 42 return minios_ioremap_nocache(addr, len); 43} 44 45int 46rumpcomp_pci_confread(unsigned bus, unsigned dev, unsigned fun, 47 int reg, unsigned int *rv) 48{ 49 50 return pcifront_conf_read(NULL, 0, bus, dev, fun, reg, 4, rv); 51} 52 53int 54rumpcomp_pci_confwrite(unsigned bus, unsigned dev, unsigned fun, 55 int reg, unsigned int v) 56{ 57 58 return pcifront_conf_write(NULL, 0, bus, dev, fun, reg, 4, v); 59} 60 61struct ihandler { 62 int (*i_handler)(void *); 63 void *i_data; 64 evtchn_port_t i_prt; 65}; 66 67static void 68hyperhandler(evtchn_port_t prt, struct pt_regs *regs, void *data) 69{ 70 struct ihandler *ihan = data; 71 72 /* XXX: not correct, might not even have rump kernel context now */ 73 ihan->i_handler(ihan->i_data); 74} 75 76/* XXXXX */ 77static int myintr; 78static unsigned mycookie; 79 80int 81rumpcomp_pci_irq_map(unsigned bus, unsigned device, unsigned fun, 82 int intrline, unsigned cookie) 83{ 84 85 /* XXX */ 86 myintr = intrline; 87 mycookie = cookie; 88 89 return 0; 90} 91 92void * 93rumpcomp_pci_irq_establish(unsigned cookie, int (*handler)(void *), void *data) 94{ 95 struct ihandler *ihan; 96 evtchn_port_t prt; 97 int pirq; 98 99 if (cookie != mycookie) 100 return NULL; 101 pirq = myintr; 102 103 ihan = bmk_memalloc(sizeof(*ihan), 0, BMK_MEMWHO_WIREDBMK); 104 if (!ihan) 105 return NULL; 106 ihan->i_handler = handler; 107 ihan->i_data = data; 108 109 prt = minios_bind_pirq(pirq, 1, hyperhandler, ihan); 110 minios_unmask_evtchn(prt); 111 ihan->i_prt = prt; 112 113 return ihan; 114} 115