131 lines
3.0 KiB
C
131 lines
3.0 KiB
C
#include <sys/param.h>
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#include <sys/device.h>
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#include <machine/pio.h>
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#include <machine/autoconf.h>
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#include <machine/grfioctl.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/ofw/openfirm.h>
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#include <macppc/dev/grfvar.h>
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caddr_t videoaddr;
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int videorowbytes;
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int videobitdepth;
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int videosize;
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static struct grfinfo ati_display;
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static void grf_ati_attach __P((struct device *, struct device *, void *));
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static int grf_ati_match __P((struct device *, struct cfdata *, void *));
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static int ati_mode __P((struct grf_softc *, int, void *));
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struct grf_ati_softc {
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struct device sc_dev;
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};
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struct cfattach grfati_ca = {
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sizeof(struct grf_ati_softc), grf_ati_match, grf_ati_attach
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};
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int
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grf_ati_match(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct pci_attach_args *pa = aux;
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if (PCI_CLASS(pa->pa_class) == PCI_CLASS_DISPLAY &&
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PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_DISPLAY_VGA &&
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/* PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_MACH64_GX && */
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PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ATI)
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return 1;
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return 0;
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}
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void
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grf_ati_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct pci_attach_args *pa = (struct pci_attach_args *)aux;
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int csr;
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int width, height, node;
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u_int reg[5];
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caddr_t regaddr;
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struct grf_attach_args ga;
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char type[32];
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extern int console_node;
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printf("\n");
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csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
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csr |= PCI_COMMAND_MEM_ENABLE;
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pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, csr);
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/*
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* OF_open("/bandit/ATY,mach64") hangs... so we can use
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* framebuffer when it is specified as a console.
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*/
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node = console_node;
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if (node == -1)
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return;
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bzero(type, sizeof(type));
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OF_getprop(node, "device_type", type, sizeof(type));
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if (strcmp(type, "display") != 0)
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return;
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OF_getprop(node, "assigned-addresses", reg, sizeof(reg));
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regaddr = mapiodev(reg[2] + 0x800000 - 0x400, 0x400);
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videoaddr = mapiodev(reg[2] + 0x400 , reg[4] - 0x400);
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/*
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* set character color to rgb:ff/ff/ff
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*/
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#define DAC_W_INDEX 0xc0
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#define DAC_DATA 0xc1
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out8(regaddr + DAC_W_INDEX, 255);
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out8(regaddr + DAC_DATA, 255);
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out8(regaddr + DAC_DATA, 255);
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out8(regaddr + DAC_DATA, 255);
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ga.ga_name = "grf";
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ga.ga_mode = ati_mode;
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ga.ga_display = &ati_display;
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height = videosize >> 16;
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ati_display.gd_regaddr = (caddr_t)reg[2] + 0x800000 - 0x400;
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ati_display.gd_regsize = 0x400;
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ati_display.gd_fbaddr = (caddr_t)reg[2] + 0x400;
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ati_display.gd_fbsize = videorowbytes * height;
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ati_display.gd_colors = 1 << videobitdepth;
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ati_display.gd_planes = videobitdepth;
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ati_display.gd_fbwidth = videorowbytes * 8 / videobitdepth;
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ati_display.gd_fbheight = height;
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ati_display.gd_fbrowbytes = videorowbytes;
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ati_display.gd_devaddr = (caddr_t)reg[2];
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ati_display.gd_devsize = reg[4];
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config_found(self, &ga, NULL);
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}
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int
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ati_mode(sc, cmd, aux)
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struct grf_softc *sc;
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int cmd;
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void *aux;
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{
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return 0;
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}
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