/* $OpenBSD: vga_pci.c,v 1.23 2006/03/16 21:32:34 matthieu Exp $ */ /* $NetBSD: vga_pci.c,v 1.3 1998/06/08 06:55:58 thorpej Exp $ */ /* * Copyright (c) 2001 Wasabi Systems, Inc. * All rights reserved. * * Written by Frank van der Linden for Wasabi Systems, Inc. * * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC * 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. */ /* * Copyright (c) 1995, 1996 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * Permission to use, copy, modify and distribute this software and * its documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ #include "vga.h" #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/device.h> #include <sys/malloc.h> #include <sys/agpio.h> #include <uvm/uvm.h> #include <machine/bus.h> #include <dev/pci/pcireg.h> #include <dev/pci/pcivar.h> #include <dev/pci/pcidevs.h> #include <dev/ic/mc6845reg.h> #include <dev/ic/pcdisplayvar.h> #include <dev/ic/vgareg.h> #include <dev/ic/vgavar.h> #include <dev/pci/vga_pcivar.h> #include <dev/wscons/wsconsio.h> #include <dev/wscons/wsdisplayvar.h> int vga_pci_match(struct device *, void *, void *); void vga_pci_attach(struct device *, struct device *, void *); paddr_t vga_pci_mmap(void* v, off_t off, int prot); struct cfattach vga_pci_ca = { sizeof(struct vga_pci_softc), vga_pci_match, vga_pci_attach, }; int vga_pci_match(struct device *parent, void *match, void *aux) { struct pci_attach_args *pa = aux; int potential; potential = 0; /* * If it's prehistoric/vga or display/vga, we might match. * For the console device, this is jut a sanity check. */ if (PCI_CLASS(pa->pa_class) == PCI_CLASS_PREHISTORIC && PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_PREHISTORIC_VGA) potential = 1; if (PCI_CLASS(pa->pa_class) == PCI_CLASS_DISPLAY && PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_DISPLAY_VGA) potential = 1; if (!potential) return (0); /* check whether it is disabled by firmware */ if ((pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) & (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE)) != (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE)) return (0); /* If it's the console, we have a winner! */ if (vga_is_console(pa->pa_iot, WSDISPLAY_TYPE_PCIVGA)) return (1); /* * If we might match, make sure that the card actually looks OK. */ if (!vga_common_probe(pa->pa_iot, pa->pa_memt)) return (0); return (1); } void vga_pci_attach(struct device *parent, struct device *self, void *aux) { struct pci_attach_args *pa = aux; #ifdef PCIAGP agp_attach(parent, self, aux); #endif printf("\n"); vga_common_attach(self, pa->pa_iot, pa->pa_memt, WSDISPLAY_TYPE_PCIVGA); } paddr_t vga_pci_mmap(void *v, off_t off, int prot) { #ifdef PCIAGP return agp_mmap(v, off, prot); #else return -1; #endif } int vga_pci_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, pci_chipset_tag_t pc, int bus, int device, int function) { return (vga_cnattach(iot, memt, WSDISPLAY_TYPE_PCIVGA, 0)); } int vga_pci_ioctl(void *v, u_long cmd, caddr_t addr, int flag, struct proc *pb) { int error = 0; switch (cmd) { #ifdef PCIAGP case AGPIOC_INFO: case AGPIOC_ACQUIRE: case AGPIOC_RELEASE: case AGPIOC_SETUP: case AGPIOC_ALLOCATE: case AGPIOC_DEALLOCATE: case AGPIOC_BIND: case AGPIOC_UNBIND: error = agp_ioctl(v, cmd, addr, flag, pb); break; #endif default: error = ENOTTY; } return (error); } #ifdef notyet void vga_pci_close(void *v) { #ifdef PCIAGP agp_close(v); #endif } #endif