get some more info out of the VESA BIOS and attach subdevices for
8-bit pseudo color and text modes still doesn't do anything useful (It would be easy to attach a wsdisplay, but we have to cooperate with the PCI or ISA attached VGA drivers. There are open issues.)
This commit is contained in:
drochner
parent
cd34aa2e82
commit
1719b0ab59
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@ -0,0 +1,183 @@
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/* $NetBSD: vesa_raster8.c,v 1.1 2002/07/10 19:15:42 drochner Exp $ */
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <machine/frame.h>
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#include <machine/kvm86.h>
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#include <machine/bus.h>
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#include <arch/i386/bios/vesabios.h>
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#include <arch/i386/bios/vesabiosreg.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/rasops/rasops.h>
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static int vesaraster8_match(struct device *, struct cfdata *, void *);
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static void vesaraster8_attach(struct device *, struct device *, void *);
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struct vesaraster8sc {
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struct device sc_dev;
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int sc_mode;
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struct rasops_info sc_ri;
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};
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struct cfattach vesarasterviii_ca = {
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sizeof(struct vesaraster8sc), vesaraster8_match, vesaraster8_attach
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};
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static int
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vesaraster8_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct vesabiosdev_attach_args *vaa = aux;
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if (strcmp(vaa->vbaa_type, "raster8"))
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return (0);
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return (1);
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}
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static void
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vesaraster8_attach(parent, dev, aux)
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struct device *parent, *dev;
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void *aux;
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{
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struct vesaraster8sc *sc = (struct vesaraster8sc *)dev;
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struct vesabiosdev_attach_args *vaa = aux;
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unsigned char *buf;
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struct trapframe tf;
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int res;
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struct modeinfoblock *mi;
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struct rasops_info *ri;
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bus_space_handle_t h;
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buf = kvm86_bios_addpage(0x2000);
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if (!buf) {
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printf("vesaraster8_attach: kvm86_bios_addpage(0x2000) failed\n");
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return;
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}
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sc->sc_mode = vaa->vbaa_modes[0]; /* XXX */
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memset(&tf, 0, sizeof(struct trapframe));
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tf.tf_eax = 0x4f01; /* function code */
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tf.tf_ecx = sc->sc_mode;
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tf.tf_es = 0;
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tf.tf_edi = 0x2000; /* buf ptr */
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res = kvm86_bioscall(0x10, &tf);
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if (res || tf.tf_eax != 0x004f) {
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printf("vbecall: res=%d, ax=%x\n", res, tf.tf_eax);
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goto out;
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}
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mi = (struct modeinfoblock *)buf;
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ri = &sc->sc_ri;
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ri->ri_flg = RI_CENTER;
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ri->ri_depth = 8;
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ri->ri_width = mi->XResolution;
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ri->ri_height = mi->YResolution;
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ri->ri_stride = mi->BytesPerScanLine;
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res = _i386_memio_map(I386_BUS_SPACE_MEM, mi->PhysBasePtr,
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ri->ri_height * ri->ri_stride,
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BUS_SPACE_MAP_LINEAR, &h);
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if (res) {
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printf("framebuffer mapping failed\n");
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goto out;
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}
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ri->ri_bits = bus_space_vaddr(I386_BUS_SPACE_MEM, h);
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printf(": fb %dx%d @%x\n", ri->ri_width, ri->ri_height,
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mi->PhysBasePtr);
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out:
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kvm86_bios_delpage(0x2000, buf);
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return;
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}
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#if 0
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static void
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vb8test(sc)
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struct vesaraster8sc *sc;
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{
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struct trapframe tf;
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int res;
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int savbufsiz, i;
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char *errstr = 0;
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struct rasops_info *ri = &sc->sc_ri;
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u_long attr;
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memset(&tf, 0, sizeof(struct trapframe));
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tf.tf_eax = 0x4f04; /* function code */
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tf.tf_edx = 0x0000; /* query */
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tf.tf_ecx = 0x000f;
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res = kvm86_bioscall(0x10, &tf);
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if (res || tf.tf_eax != 0x004f) {
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printf("vbecall: res=%d, ax=%x\n", res, tf.tf_eax);
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return;
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}
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savbufsiz = roundup(tf.tf_ebx * 64, NBPG) / NBPG;
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printf("savbuf: %d pg\n", savbufsiz);
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for (i = 0; i < savbufsiz; i++)
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(void)kvm86_bios_addpage(0x3000 + i * 0x1000);
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memset(&tf, 0, sizeof(struct trapframe));
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tf.tf_eax = 0x4f04; /* function code */
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tf.tf_edx = 0x0001; /* save */
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tf.tf_ecx = 0x000f; /* all (but framebuffer) */
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tf.tf_es = 0;
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tf.tf_ebx = 0x3000; /* buffer */
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res = kvm86_bioscall(0x10, &tf);
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if (res || tf.tf_eax != 0x004f) {
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printf("vbecall: res=%d, ax=%x\n", res, tf.tf_eax);
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return;
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}
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memset(&tf, 0, sizeof(struct trapframe));
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tf.tf_eax = 0x4f02; /* function code */
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tf.tf_ebx = sc->sc_mode | 0x4000; /* flat */
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tf.tf_ebx |= 0x8000; /* XXX no clear (save fonts in fb) */
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res = kvm86_bioscall(0x10, &tf);
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if (res || tf.tf_eax != 0x004f) {
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printf("vbecall: res=%d, ax=%x\n", res, tf.tf_eax);
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return;
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}
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if (rasops_init(ri, 20, 50)) {
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errstr = "rasops_init";
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goto back;
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}
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ri->ri_ops.allocattr(ri, 0, 0, 0, &attr);
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ri->ri_ops.putchar(ri, 1, 1, 'X', attr);
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ri->ri_ops.putchar(ri, 1, 2, 'Y', attr);
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ri->ri_ops.putchar(ri, 1, 3, 'Z', attr);
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delay(5000000);
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errstr = 0;
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back:
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memset(&tf, 0, sizeof(struct trapframe));
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tf.tf_eax = 0x4f04; /* function code */
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tf.tf_edx = 0x0002; /* restore */
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tf.tf_ecx = 0x000f;
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tf.tf_es = 0;
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tf.tf_ebx = 0x3000; /* buffer */
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res = kvm86_bioscall(0x10, &tf);
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if (res || tf.tf_eax != 0x004f) {
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printf("vbecall: res=%d, ax=%x\n", res, tf.tf_eax);
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return;
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}
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if (errstr)
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printf("error: %s\n", errstr);
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}
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#endif
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@ -0,0 +1,57 @@
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/* $NetBSD: vesa_text.c,v 1.1 2002/07/10 19:15:43 drochner Exp $ */
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <machine/frame.h>
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#include <machine/kvm86.h>
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#include <machine/bus.h>
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#include <arch/i386/bios/vesabios.h>
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#include <arch/i386/bios/vesabiosreg.h>
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static int vesatext_match(struct device *, struct cfdata *, void *);
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static void vesatext_attach(struct device *, struct device *, void *);
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struct vesatextsc {
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struct device sc_dev;
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int *sc_modes;
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int sc_nmodes;
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};
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struct cfattach vesatext_ca = {
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sizeof(struct vesatextsc), vesatext_match, vesatext_attach
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};
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static int
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vesatext_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct vesabiosdev_attach_args *vaa = aux;
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if (strcmp(vaa->vbaa_type, "text"))
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return (0);
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return (1);
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}
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static void
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vesatext_attach(parent, dev, aux)
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struct device *parent, *dev;
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void *aux;
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{
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struct vesatextsc *sc = (struct vesatextsc *)dev;
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struct vesabiosdev_attach_args *vaa = aux;
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int i;
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sc->sc_modes = malloc(vaa->vbaa_nmodes * sizeof(int),
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M_DEVBUF, M_NOWAIT);
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sc->sc_nmodes = vaa->vbaa_nmodes;
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for (i = 0; i < vaa->vbaa_nmodes; i++)
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sc->sc_modes[i] = vaa->vbaa_modes[i];
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printf("\n");
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}
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@ -1,12 +1,16 @@
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/* $NetBSD: vesabios.c,v 1.1 2002/07/07 12:59:58 drochner Exp $ */
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/* $NetBSD: vesabios.c,v 1.2 2002/07/10 19:15:43 drochner Exp $ */
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <machine/frame.h>
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#include <machine/kvm86.h>
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#include <arch/i386/bios/vesabios.h>
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#include <arch/i386/bios/vesabiosreg.h>
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#include "opt_vesabios.h"
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struct vbeinfoblock
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{
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@ -21,10 +25,20 @@ struct vbeinfoblock
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/* data area, in total max 512 bytes for VBE 2.0 */
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} __attribute__ ((packed));
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#define FAR2FLATPTR(p) ((p & 0xffff) + ((p >> 12) & 0xffff0))
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static int vesabios_match(struct device *, struct cfdata *, void *);
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static void vesabios_attach(struct device *, struct device *, void *);
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static int vesabios_print(void *, const char *);
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static int vbegetinfo(struct vbeinfoblock **);
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static void vbefreeinfo(struct vbeinfoblock *);
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#ifdef VESABIOSVERBOSE
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static const char *mm2txt(unsigned int);
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#endif
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struct cfattach vesabios_ca = {
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sizeof(struct device), vesabios_match, 0
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sizeof(struct device), vesabios_match, vesabios_attach
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};
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static int
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@ -39,21 +53,21 @@ vesabios_match(parent, match, aux)
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if (strcmp(vaa->vaa_busname, "vesabios") != 0)
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return (0);
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return (0); /* XXX for now */
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return (1);
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}
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int
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vbeprobe()
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static int
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vbegetinfo(vip)
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struct vbeinfoblock **vip;
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{
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unsigned char *buf;
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struct trapframe tf;
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int res, ok = 0;
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struct vbeinfoblock *vi;
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int res, error;
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buf = kvm86_bios_addpage(0x2000);
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if (!buf) {
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printf("vbeprobe: kvm86_bios_addpage(0x2000) failed\n");
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return (0);
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printf("vbegetinfo: kvm86_bios_addpage(0x2000) failed\n");
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return (ENOMEM);
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}
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memcpy(buf, "VBE2", 4);
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@ -64,22 +78,200 @@ vbeprobe()
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tf.tf_edi = 0x2000; /* buf ptr */
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res = kvm86_bioscall(0x10, &tf);
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printf("vbecall: res=%d, ax=%x\n", res, tf.tf_eax);
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if (res || tf.tf_eax != 0x004f)
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goto out;
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vi = (struct vbeinfoblock *)buf;
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if (memcmp(vi->VbeSignature, "VESA", 4)) {
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printf("VESA: bad sig\n");
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if (res || tf.tf_eax != 0x004f) {
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printf("vbecall: res=%d, ax=%x\n", res, tf.tf_eax);
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error = ENXIO;
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goto out;
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}
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printf("VESA: version: %x, cap: %x, oem @%x, modes @%x\n",
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vi->VbeVersion, vi->Capabilities, vi->OemStringPtr,
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vi->VideoModePtr);
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ok = 1;
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if (memcmp(((struct vbeinfoblock *)buf)->VbeSignature, "VESA", 4)) {
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error = EIO;
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goto out;
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}
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if (vip)
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*vip = (struct vbeinfoblock *)buf;
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return (0);
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out:
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kvm86_bios_delpage(0x2000, buf);
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return (ok);
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return (error);
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}
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static void
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vbefreeinfo(vip)
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struct vbeinfoblock *vip;
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{
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kvm86_bios_delpage(0x2000, vip);
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}
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int
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vbeprobe()
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{
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struct vbeinfoblock *vi;
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if (vbegetinfo(&vi))
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return (0);
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vbefreeinfo(vi);
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return (1);
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}
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||||
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#ifdef VESABIOSVERBOSE
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static const char *
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mm2txt(mm)
|
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unsigned int mm;
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{
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static char buf[30];
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static const char *names[] = {
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"Text mode",
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"CGA graphics",
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"Hercules graphics",
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"Planar",
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"Packed pixel",
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"Non-chain 4, 256 color",
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"Direct Color",
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"YUV"
|
||||
};
|
||||
|
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if (mm < sizeof(names)/sizeof(names[0]))
|
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return (names[mm]);
|
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snprintf(buf, sizeof(buf), "unknown memory model %d", mm);
|
||||
return (buf);
|
||||
}
|
||||
#endif
|
||||
|
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static void
|
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vesabios_attach(parent, dev, aux)
|
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struct device * parent, *dev;
|
||||
void *aux;
|
||||
{
|
||||
struct vbeinfoblock *vi;
|
||||
unsigned char *buf;
|
||||
struct trapframe tf;
|
||||
int res;
|
||||
char name[256];
|
||||
#define MAXMODES 60
|
||||
u_int16_t modes[MAXMODES];
|
||||
int raster8modes[MAXMODES];
|
||||
int textmodes[MAXMODES];
|
||||
int nmodes, nraster8modes, ntextmodes, i;
|
||||
u_int32_t modeptr;
|
||||
struct modeinfoblock *mi;
|
||||
struct vesabiosdev_attach_args vbaa;
|
||||
|
||||
if (vbegetinfo(&vi))
|
||||
panic("vesabios_attach: disappeared");
|
||||
|
||||
printf(": version %d.%d", vi->VbeVersion >> 8, vi->VbeVersion & 0xff);
|
||||
|
||||
res = kvm86_bios_read(FAR2FLATPTR(vi->OemVendorNamePtr),
|
||||
name, sizeof(name));
|
||||
if (res > 0) {
|
||||
name[res - 1] = 0;
|
||||
printf(", %s", name);
|
||||
res = kvm86_bios_read(FAR2FLATPTR(vi->OemProductNamePtr),
|
||||
name, sizeof(name));
|
||||
if (res > 0) {
|
||||
name[res - 1] = 0;
|
||||
printf(" %s", name);
|
||||
}
|
||||
}
|
||||
printf("\n");
|
||||
|
||||
nmodes = 0;
|
||||
modeptr = FAR2FLATPTR(vi->VideoModePtr);
|
||||
while (nmodes < MAXMODES) {
|
||||
res = kvm86_bios_read(modeptr, (char *)&modes[nmodes], 2);
|
||||
if (res != 2 || modes[nmodes] == 0xffff)
|
||||
break;
|
||||
nmodes++;
|
||||
modeptr += 2;
|
||||
}
|
||||
|
||||
vbefreeinfo(vi);
|
||||
if (nmodes == 0)
|
||||
return;
|
||||
|
||||
nraster8modes = ntextmodes = 0;
|
||||
|
||||
buf = kvm86_bios_addpage(0x2000);
|
||||
if (!buf) {
|
||||
printf("vesabios_attach: kvm86_bios_addpage(0x2000) failed\n");
|
||||
return;
|
||||
}
|
||||
for (i = 0; i < nmodes; i++) {
|
||||
|
||||
memset(&tf, 0, sizeof(struct trapframe));
|
||||
tf.tf_eax = 0x4f01; /* function code */
|
||||
tf.tf_ecx = modes[i];
|
||||
tf.tf_es = 0;
|
||||
tf.tf_edi = 0x2000; /* buf ptr */
|
||||
|
||||
res = kvm86_bioscall(0x10, &tf);
|
||||
if (res || tf.tf_eax != 0x004f) {
|
||||
printf("vbecall: res=%d, ax=%x\n", res, tf.tf_eax);
|
||||
break;
|
||||
}
|
||||
mi = (struct modeinfoblock *)buf;
|
||||
#ifdef VESABIOSVERBOSE
|
||||
printf("VESA mode %04x: attributes %04x",
|
||||
modes[i], mi->ModeAttributes);
|
||||
#endif
|
||||
if (!(mi->ModeAttributes & 1)) {
|
||||
#ifdef VESABIOSVERBOSE
|
||||
printf("\n");
|
||||
#endif
|
||||
continue;
|
||||
}
|
||||
if (mi->ModeAttributes & 0x10) {
|
||||
/* graphics */
|
||||
#ifdef VESABIOSVERBOSE
|
||||
printf(", %dx%d %dbbp %s\n",
|
||||
mi->XResolution, mi->YResolution,
|
||||
mi->BitsPerPixel, mm2txt(mi->MemoryModel));
|
||||
#endif
|
||||
if ((mi->ModeAttributes & 0x80)
|
||||
&& mi->BitsPerPixel == 8
|
||||
&& mi->MemoryModel == 4) {
|
||||
/* flat buffer, 8bpp packed pixel */
|
||||
raster8modes[nraster8modes++] = modes[i];
|
||||
}
|
||||
} else {
|
||||
/* text */
|
||||
#ifdef VESABIOSVERBOSE
|
||||
printf(", text %dx%d\n",
|
||||
mi->XResolution, mi->YResolution);
|
||||
#endif
|
||||
textmodes[ntextmodes++] = modes[i];
|
||||
}
|
||||
}
|
||||
kvm86_bios_delpage(0x2000, buf);
|
||||
|
||||
if (nraster8modes) {
|
||||
vbaa.vbaa_type = "raster8";
|
||||
vbaa.vbaa_modes = raster8modes;
|
||||
vbaa.vbaa_nmodes = nraster8modes;
|
||||
|
||||
config_found(dev, &vbaa, vesabios_print);
|
||||
}
|
||||
if (textmodes) {
|
||||
vbaa.vbaa_type = "text";
|
||||
vbaa.vbaa_modes = textmodes;
|
||||
vbaa.vbaa_nmodes = ntextmodes;
|
||||
|
||||
config_found(dev, &vbaa, vesabios_print);
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
vesabios_print(aux, pnp)
|
||||
void *aux;
|
||||
const char *pnp;
|
||||
{
|
||||
struct vesabiosdev_attach_args *vbaa = aux;
|
||||
|
||||
if (pnp)
|
||||
printf("%s at %s", vbaa->vbaa_type, pnp);
|
||||
return (UNCONF);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,13 @@
|
|||
/* $NetBSD: vesabios.h,v 1.1 2002/07/07 12:59:58 drochner Exp $ */
|
||||
/* $NetBSD: vesabios.h,v 1.2 2002/07/10 19:15:43 drochner Exp $ */
|
||||
|
||||
int vbeprobe __P((void));
|
||||
|
||||
struct vesabios_attach_args {
|
||||
char *vaa_busname;
|
||||
};
|
||||
|
||||
struct vesabiosdev_attach_args {
|
||||
char *vbaa_type;
|
||||
int *vbaa_modes;
|
||||
int vbaa_nmodes;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -0,0 +1,27 @@
|
|||
/* $NetBSD: vesabiosreg.h,v 1.1 2002/07/10 19:15:43 drochner Exp $ */
|
||||
|
||||
struct modeinfoblock {
|
||||
/* Mandatory information for all VBE revisions */
|
||||
u_int16_t ModeAttributes;
|
||||
u_int8_t WinAAttributes, WinBAttributes;
|
||||
u_int16_t WinGranularity, WinSize, WinASegment, WinBSegment;
|
||||
u_int32_t WinFuncPtr;
|
||||
u_int16_t BytesPerScanLine;
|
||||
/* Mandatory information for VBE 1.2 and above */
|
||||
u_int16_t XResolution, YResolution;
|
||||
u_int8_t XCharSize, YCharSize, NumberOfPlanes, BitsPerPixel;
|
||||
u_int8_t NumberOfBanks, MemoryModel, BankSize, NumberOfImagePages;
|
||||
u_int8_t Reserved1;
|
||||
/* Direct Color fields
|
||||
(required for direct/6 and YUV/7 memory models) */
|
||||
u_int8_t RedMaskSize, RedFieldPosition;
|
||||
u_int8_t GreenMaskSize, GreenFieldPosition;
|
||||
u_int8_t BlueMaskSize, BlueFieldPosition;
|
||||
u_int8_t RsvdMaskSize, RsvdFieldPosition;
|
||||
u_int8_t DirectColorModeInfo;
|
||||
/* Mandatory information for VBE 2.0 and above */
|
||||
u_int32_t PhysBasePtr;
|
||||
u_int32_t OffScreenMemOffset;
|
||||
u_int16_t OffScreenMemSize;
|
||||
u_int8_t Reserved2[206];
|
||||
} __attribute__ ((packed));
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
# $NetBSD: files.i386,v 1.210 2002/07/07 13:03:47 drochner Exp $
|
||||
# $NetBSD: files.i386,v 1.211 2002/07/10 19:15:43 drochner Exp $
|
||||
#
|
||||
# new style config file for i386 architecture
|
||||
#
|
||||
|
|
@ -451,6 +451,17 @@ file arch/i386/acpi/vald_acpi.c vald_acpi
|
|||
attach spic at acpi with spic_acpi
|
||||
file arch/i386/acpi/spic_acpi.c spic_acpi
|
||||
|
||||
device vesabios
|
||||
device vesabios {}
|
||||
attach vesabios at mainbus
|
||||
file arch/i386/bios/vesabios.c vesabios needs-flag
|
||||
defflag opt_vesabios.h VESABIOSVERBOSE
|
||||
|
||||
include "dev/rasops/files.rasops"
|
||||
|
||||
device vesarasterviii: rasops8
|
||||
attach vesarasterviii at vesabios
|
||||
file arch/i386/bios/vesa_raster8.c vesarasterviii
|
||||
|
||||
device vesatext
|
||||
attach vesatext at vesabios
|
||||
file arch/i386/bios/vesa_text.c vesatext
|
||||
|
|
|
|||
Loading…
Reference in New Issue