vga_isa.c revision 111815
143105Sdfr/*- 243105Sdfr * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 343105Sdfr * All rights reserved. 443105Sdfr * 543105Sdfr * Redistribution and use in source and binary forms, with or without 643105Sdfr * modification, are permitted provided that the following conditions 743105Sdfr * are met: 843105Sdfr * 1. Redistributions of source code must retain the above copyright 943105Sdfr * notice, this list of conditions and the following disclaimer as 1043105Sdfr * the first lines of this file unmodified. 1143105Sdfr * 2. Redistributions in binary form must reproduce the above copyright 1243105Sdfr * notice, this list of conditions and the following disclaimer in the 1343105Sdfr * documentation and/or other materials provided with the distribution. 1443105Sdfr * 1543105Sdfr * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 1643105Sdfr * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1743105Sdfr * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1843105Sdfr * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 1943105Sdfr * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2043105Sdfr * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2143105Sdfr * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2243105Sdfr * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2343105Sdfr * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2443105Sdfr * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2543105Sdfr * 2650477Speter * $FreeBSD: head/sys/isa/vga_isa.c 111815 2003-03-03 12:15:54Z phk $ 2743105Sdfr */ 2843105Sdfr 2943105Sdfr#include "opt_vga.h" 3043105Sdfr#include "opt_fb.h" 3143105Sdfr#include "opt_syscons.h" /* should be removed in the future, XXX */ 3243105Sdfr 3343105Sdfr#include <sys/param.h> 3443105Sdfr#include <sys/systm.h> 3543105Sdfr#include <sys/kernel.h> 3648104Syokota#include <sys/conf.h> 3743105Sdfr#include <sys/bus.h> 3848104Syokota#include <sys/fbio.h> 3943105Sdfr 4048104Syokota#include <machine/bus.h> 4148104Syokota#include <machine/resource.h> 4248104Syokota 4348104Syokota#include <sys/rman.h> 4448104Syokota 4543105Sdfr#include <vm/vm.h> 4643105Sdfr#include <vm/pmap.h> 4743105Sdfr 4843105Sdfr#include <machine/md_var.h> 4943105Sdfr#include <machine/pc/bios.h> 5043105Sdfr 5143105Sdfr#include <dev/fb/fbreg.h> 5243105Sdfr#include <dev/fb/vgareg.h> 5343105Sdfr 5443105Sdfr#include <isa/isareg.h> 5543105Sdfr#include <isa/isavar.h> 5643105Sdfr 5748104Syokota#define VGA_SOFTC(unit) \ 5848104Syokota ((vga_softc_t *)devclass_get_softc(isavga_devclass, unit)) 5943105Sdfr 6048104Syokotastatic devclass_t isavga_devclass; 6143105Sdfr 6243105Sdfr#ifdef FB_INSTALL_CDEV 6343105Sdfr 6448104Syokotastatic d_open_t isavga_open; 6548104Syokotastatic d_close_t isavga_close; 6648104Syokotastatic d_read_t isavga_read; 6748104Syokotastatic d_write_t isavga_write; 6848104Syokotastatic d_ioctl_t isavga_ioctl; 6948104Syokotastatic d_mmap_t isavga_mmap; 7043105Sdfr 7148104Syokotastatic struct cdevsw isavga_cdevsw = { 72111815Sphk .d_open = isavga_open, 73111815Sphk .d_close = isavga_close, 74111815Sphk .d_read = isavga_read, 75111815Sphk .d_write = isavga_write, 76111815Sphk .d_ioctl = isavga_ioctl, 77111815Sphk .d_mmap = isavga_mmap, 78111815Sphk .d_name = VGA_DRIVER_NAME, 79111815Sphk .d_maj = -1, 8043105Sdfr}; 8143105Sdfr 8243105Sdfr#endif /* FB_INSTALL_CDEV */ 8343105Sdfr 8462225Speterstatic void 8562225Speterisavga_identify(driver_t *driver, device_t parent) 8662225Speter{ 8762225Speter BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, VGA_DRIVER_NAME, 0); 8862225Speter} 8962225Speter 9043105Sdfrstatic int 9143105Sdfrisavga_probe(device_t dev) 9243105Sdfr{ 9348104Syokota video_adapter_t adp; 9448104Syokota device_t bus; 9548104Syokota int error; 9643105Sdfr 9747618Sdfr /* No pnp support */ 9847618Sdfr if (isa_get_vendorid(dev)) 9947618Sdfr return (ENXIO); 10047618Sdfr 10143105Sdfr device_set_desc(dev, "Generic ISA VGA"); 10251052Sdfr error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev)); 10348104Syokota if (error == 0) { 10448104Syokota bus = device_get_parent(dev); 10552174Sdfr bus_set_resource(dev, SYS_RES_IOPORT, 0, 10648104Syokota adp.va_io_base, adp.va_io_size); 10752174Sdfr bus_set_resource(dev, SYS_RES_MEMORY, 0, 10848104Syokota adp.va_mem_base, adp.va_mem_size); 10948104Syokota#if 0 11048104Syokota isa_set_port(dev, adp.va_io_base); 11148104Syokota isa_set_portsize(dev, adp.va_io_size); 11248104Syokota isa_set_maddr(dev, adp.va_mem_base); 11348104Syokota isa_set_msize(dev, adp.va_mem_size); 11448104Syokota#endif 11548104Syokota } 11648104Syokota return error; 11743105Sdfr} 11843105Sdfr 11943105Sdfrstatic int 12043105Sdfrisavga_attach(device_t dev) 12143105Sdfr{ 12248104Syokota vga_softc_t *sc; 12348104Syokota struct resource *port; 12448104Syokota struct resource *mem; 12548104Syokota int unit; 12648104Syokota int rid; 12748104Syokota int error; 12843105Sdfr 12948104Syokota unit = device_get_unit(dev); 13043105Sdfr sc = device_get_softc(dev); 13143105Sdfr 13248104Syokota rid = 0; 13348104Syokota port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 13448104Syokota 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE); 13548104Syokota rid = 0; 13648104Syokota mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 13748104Syokota 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE); 13843105Sdfr 13951052Sdfr error = vga_attach_unit(unit, sc, device_get_flags(dev)); 14043105Sdfr if (error) 14148104Syokota return error; 14243105Sdfr 14343105Sdfr#ifdef FB_INSTALL_CDEV 14443105Sdfr /* attach a virtual frame buffer device */ 14548104Syokota error = fb_attach(makedev(0, VGA_MKMINOR(unit)), sc->adp, &isavga_cdevsw); 14643105Sdfr if (error) 14743105Sdfr return error; 14843105Sdfr#endif /* FB_INSTALL_CDEV */ 14943105Sdfr 15043105Sdfr if (bootverbose) 15143664Syokota (*vidsw[sc->adp->va_index]->diag)(sc->adp, bootverbose); 15243105Sdfr 15348104Syokota#if experimental 15454073Smdodd device_add_child(dev, "fb", -1); 15548104Syokota bus_generic_attach(dev); 15643105Sdfr#endif 15743105Sdfr 15848104Syokota return 0; 15943105Sdfr} 16043105Sdfr 16148104Syokota#ifdef FB_INSTALL_CDEV 16243105Sdfr 16343105Sdfrstatic int 16483366Sjulianisavga_open(dev_t dev, int flag, int mode, struct thread *td) 16543105Sdfr{ 16683366Sjulian return vga_open(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td); 16743105Sdfr} 16843105Sdfr 16943105Sdfrstatic int 17083366Sjulianisavga_close(dev_t dev, int flag, int mode, struct thread *td) 17143105Sdfr{ 17283366Sjulian return vga_close(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td); 17343105Sdfr} 17443105Sdfr 17543105Sdfrstatic int 17648104Syokotaisavga_read(dev_t dev, struct uio *uio, int flag) 17743105Sdfr{ 17848104Syokota return vga_read(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag); 17943105Sdfr} 18043105Sdfr 18143105Sdfrstatic int 18248104Syokotaisavga_write(dev_t dev, struct uio *uio, int flag) 18343105Sdfr{ 18448104Syokota return vga_write(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag); 18543105Sdfr} 18643105Sdfr 18743105Sdfrstatic int 18883366Sjulianisavga_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct thread *td) 18943105Sdfr{ 19083366Sjulian return vga_ioctl(dev, VGA_SOFTC(VGA_UNIT(dev)), cmd, arg, flag, td); 19143105Sdfr} 19243105Sdfr 19343105Sdfrstatic int 194111462Smuxisavga_mmap(dev_t dev, vm_offset_t offset, vm_offset_t *paddr, int prot) 19543105Sdfr{ 196111462Smux return vga_mmap(dev, VGA_SOFTC(VGA_UNIT(dev)), offset, paddr, prot); 19743105Sdfr} 19843105Sdfr 19948104Syokota#endif /* FB_INSTALL_CDEV */ 20062225Speter 20162225Speterstatic device_method_t isavga_methods[] = { 20262225Speter DEVMETHOD(device_identify, isavga_identify), 20362225Speter DEVMETHOD(device_probe, isavga_probe), 20462225Speter DEVMETHOD(device_attach, isavga_attach), 20562225Speter 20662225Speter DEVMETHOD(bus_print_child, bus_generic_print_child), 20762225Speter { 0, 0 } 20862225Speter}; 20962225Speter 21062225Speterstatic driver_t isavga_driver = { 21162225Speter VGA_DRIVER_NAME, 21262225Speter isavga_methods, 21362225Speter sizeof(vga_softc_t), 21462225Speter}; 21562225Speter 21662225SpeterDRIVER_MODULE(vga, isa, isavga_driver, isavga_devclass, 0, 0); 217