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use a shadow framebuffer

This commit is contained in:
macallan 2010-04-08 16:49:34 +00:00
parent 8f881c7dd3
commit b7af30216a
1 changed files with 78 additions and 3 deletions
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81
sys/dev/sbus/cgtwelve.c
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@ -1,4 +1,4 @@
/* $NetBSD: cgtwelve.c,v 1.1 2010/03/24 00:33:06 macallan Exp $ */
/* $NetBSD: cgtwelve.c,v 1.2 2010/04/08 16:49:34 macallan Exp $ */
/*-
* Copyright (c) 2010 Michael Lorenz
@ -29,7 +29,7 @@
/* a console driver for the Sun CG12 / Matrox SG3 graphics board */
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cgtwelve.c,v 1.1 2010/03/24 00:33:06 macallan Exp $");
__KERNEL_RCSID(0, "$NetBSD: cgtwelve.c,v 1.2 2010/04/08 16:49:34 macallan Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -37,6 +37,7 @@ __KERNEL_RCSID(0, "$NetBSD: cgtwelve.c,v 1.1 2010/03/24 00:33:06 macallan Exp $"
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/conf.h>
#include <sys/kmem.h>
#include <sys/bus.h>
#include <machine/autoconf.h>
@ -62,6 +63,7 @@ struct cgtwelve_softc {
device_t sc_dev;
bus_space_tag_t sc_tag;
void *sc_fbaddr;
void *sc_shadow;
int sc_width;
int sc_height;
int sc_stride;
@ -162,6 +164,7 @@ cgtwelve_attach(device_t parent, device_t self, void *args)
aprint_normal_dev(self, "%d x %d\n", sc->sc_width, sc->sc_height);
sc->sc_shadow = kmem_alloc(sc->sc_fbsize, KM_SLEEP);
isconsole = fb_is_console(node);
sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
@ -193,7 +196,74 @@ cgtwelve_attach(device_t parent, device_t self, void *args)
aa.accesscookie = &sc->vd;
config_found(self, &aa, wsemuldisplaydevprint);
#if 0
if (sbus_bus_map(sa->sa_bustag,
sa->sa_slot,
sa->sa_offset + CG12_OFF_REGISTERS,
0xc0000, 0, &bh) == 0) {
int i, j;
bus_space_write_4(sa->sa_bustag, bh, CG12_EIC_RESET, 0);
bus_space_write_4(sa->sa_bustag, bh,
CG12DPU_PLN_RDMSK_HOST, CG12_PLN_RD_ENABLE);
bus_space_write_4(sa->sa_bustag, bh,
CG12DPU_PLN_WRMSK_HOST, CG12_PLN_WR_ENABLE);
bus_space_write_4(sa->sa_bustag, bh,
CG12DPU_PLN_SL_HOST, CG12_PLN_SL_ENABLE);
bus_space_write_4(sa->sa_bustag, bh,
CG12APU_HPAGE, CG12_HPAGE_ENABLE);
bus_space_write_4(sa->sa_bustag, bh,
CG12APU_HACCESS, CG12_HACCESS_ENABLE);
memset(sc->sc_fbaddr, 0, 0x10000);
bus_space_write_4(sa->sa_bustag, bh,
CG12DPU_PLN_RDMSK_LOC, 0xffffffff);
bus_space_write_4(sa->sa_bustag, bh,
CG12DPU_PLN_WRMSK_LOC, 0xffffffff);
bus_space_write_4(sa->sa_bustag, bh,
CG12APU_LACCESS, CG12_HACCESS_24BIT);
bus_space_write_4(sa->sa_bustag, bh,
CG12APU_LPAGE, CG12_HPAGE_24BIT);
bus_space_write_4(sa->sa_bustag, bh,
CG12DPU_PLN_SL_LOCAL0, CG12_PLN_SL_24BIT);
bus_space_write_4(sa->sa_bustag, bh,
CG12APU_DWG_CTL, DWGCTL_BITBLT | 0x00f30000);
bus_space_write_4(sa->sa_bustag, bh,
CG12APU_F_XLEFT, 10);
bus_space_write_4(sa->sa_bustag, bh,
CG12APU_F_XRIGHT, 1010);
bus_space_write_4(sa->sa_bustag, bh,
CG12APU_Y_DST, 10);
bus_space_write_4(sa->sa_bustag, bh,
CG12DPU_COLOUR0, 0xffffffff);
#if 1
bus_space_write_4(sa->sa_bustag, bh,
CG12APU_LENGTH | 0x1000, 800);
#endif
bus_space_write_4(sa->sa_bustag, bh,
CG12DPU_PLN_RDMSK_HOST, CG12_PLN_RD_OVERLAY);
bus_space_write_4(sa->sa_bustag, bh,
CG12DPU_PLN_WRMSK_HOST, CG12_PLN_WR_OVERLAY);
bus_space_write_4(sa->sa_bustag, bh,
CG12DPU_PLN_SL_HOST, CG12_PLN_SL_OVERLAY);
bus_space_write_4(sa->sa_bustag, bh,
CG12APU_HPAGE, CG12_HPAGE_OVERLAY);
bus_space_write_4(sa->sa_bustag, bh,
CG12APU_HACCESS, CG12_HACCESS_OVERLAY);
for (i = 0x100; i < 0x300; i += 32) {
printf("%04x:", i);
for (j = 0; j < 32; j += 4) {
printf(" %08x", bus_space_read_4(sa->sa_bustag,
bh, i + j));
}
printf("\n");
}
bus_space_unmap(sa->sa_bustag, bh, 0xc0000);
}
panic("poof");
#endif
}
@ -210,7 +280,12 @@ cgtwelve_init_screen(void *cookie, struct vcons_screen *scr,
ri->ri_stride = sc->sc_stride;
ri->ri_flg = RI_CENTER;
ri->ri_bits = sc->sc_fbaddr;
if (sc->sc_shadow == NULL) {
ri->ri_bits = sc->sc_fbaddr;
} else {
ri->ri_hwbits = sc->sc_fbaddr;
ri->ri_bits = sc->sc_shadow;
}
rasops_init(ri, ri->ri_height/8, ri->ri_width/8);
ri->ri_caps = WSSCREEN_REVERSE;