int
legsscnprobe()
{
extern vaddr_t virtual_avail;
int depth;
if (vax_boardtype != VAX_BTYP_60)
return 0; /* move along, nothing there */
/* no working graphics hardware, or forced serial console? */
if ((vax_confdata & 0x60) == 0)
return 0;
/*
* Check for a recognized color depth.
*/
ioaccess(virtual_avail, LEGSS_BASE + LEGSS_VRAM_OFFSET, 1);
depth = legss_probe_depth(virtual_avail);
iounaccess(virtual_avail, 1);
if (depth == 0)
return 0; /* unsupported, default to serial */
return 1;
}
ka820_init()
{
register int csr;
/* map in the various devices */
*(int *)&Ka820map[0] = PG_V|PG_KW|btop(KA820_PORTADDR);
*(int *)&RX50map[0] = PG_V|PG_KW|btop(KA820_RX50ADDR);
*(int *)&Clockmap[0] = PG_V|PG_KW|btop(KA820_CLOCKADDR);
#ifdef notyet
ioaccess(bootram, BRAMmap, KA820_BRPAGES * NBPG);
ioaccess(eeprom, EEPROMmap, KA820_EEPAGES * NBPG);
#else
mtpr(TBIA, 0);
#endif
/* reset the console and enable the RX50 */
csr = ka820port.csr;
csr &= ~KA820PORT_RSTHALT; /* ??? */
csr |= KA820PORT_CONSCLR | KA820PORT_CRDCLR | KA820PORT_CONSEN |
KA820PORT_RXIE;
ka820port.csr = csr;
}
/*
* Called very early to setup the glass tty as console.
* Because it's called before the VM system is initialized, virtual memory
* for the framebuffer can be stolen directly without disturbing anything.
*/
int
legsscninit()
{
struct legss_screen *ss = &legss_consscr;
extern vaddr_t virtual_avail;
vaddr_t ova;
long defattr;
struct rasops_info *ri;
ova = virtual_avail;
ioaccess(virtual_avail, LEGSS_BASE + LEGSS_VRAM_OFFSET, 1);
ss->ss_depth = legss_probe_depth(virtual_avail);
iounaccess(virtual_avail, 1);
if (ss->ss_depth == 0)
return 1;
ioaccess(virtual_avail, LEGSS_BASE + LEGSS_VRAM_OFFSET,
(LEGSS_VISHEIGHT * LEGSS_WIDTH * 32 / NBBY) / VAX_NBPG);
ss->ss_vram = virtual_avail;
virtual_avail += (LEGSS_VISHEIGHT * LEGSS_WIDTH * 32 / NBBY);
virtual_avail = round_page(virtual_avail);
/* this had better not fail */
if (legss_setup_screen(ss) != 0) {
iounaccess(ss->ss_vram,
(LEGSS_VISHEIGHT * LEGSS_WIDTH * 32 / NBBY) / VAX_NBPG);
virtual_avail = ova;
return 1;
}
ri = &ss->ss_ri;
ri->ri_ops.alloc_attr(ri, 0, 0, 0, &defattr);
wsdisplay_cnattach(&legss_stdscreen, ri, 0, 0, defattr);
return 0;
}
