* Copyright (c) 2000-2003 Michael Shalayeff

/* $NetBSD: sti.c,v 1.47 2025/05/30 19:42:28 tsutsui Exp $ */

/* $OpenBSD: sti.c,v 1.61 2009/09/05 14:09:35 miod Exp $ */

/*
* Copyright (c) 2000-2003 Michael Shalayeff
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* TODO:
* call sti procs asynchronously;
* implement console scroll-back;
* X11 support on more models.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sti.c,v 1.47 2025/05/30 19:42:28 tsutsui Exp $");

#include "wsdisplay.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/malloc.h>

#include <uvm/uvm_extern.h>

#include <sys/bus.h>

#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wsconsio.h>

#include <dev/ic/stireg.h>
#include <dev/ic/summitreg.h>
#include <dev/ic/stivar.h>

#ifdef STIDEBUG

#define DPRINTF(s) do { \
if (stidebug) \
printf s; \
} while(0)

int stidebug = 1;
#else
#define DPRINTF(s) /* */
#endif

void sti_cursor(void *, int, int, int);
int sti_mapchar(void *, int, u_int *);
void sti_putchar(void *, int, int, u_int, long);
void sti_copycols(void *, int, int, int, int);
void sti_erasecols(void *, int, int, int, long);
void sti_copyrows(void *, int, int, int);
void sti_eraserows(void *, int, int, long);
int sti_alloc_attr(void *, int, int, int, long *);

/* pseudo attribute ops for sti ROM putchar function */
#define WSATTR_FG_SHIFT 24
#define WSATTR_BG_SHIFT 16
#define WSATTR_UNPACK_FG(attr) (((attr) >> WSATTR_FG_SHIFT) & 0xff)
#define WSATTR_UNPACK_BG(attr) (((attr) >> WSATTR_BG_SHIFT) & 0xff)
#define WSATTR_UNPACK_FLAG(attr) ((attr) & WSATTR_USERMASK)
#define WSATTR_PACK_FG(fg) ((fg) << WSATTR_FG_SHIFT)
#define WSATTR_PACK_BG(bg) ((bg) << WSATTR_BG_SHIFT)
#define WSATTR_PACK_FLAG(flag) ((flag))
#define WSATTR_PACK(fg, bg, flag) \
(WSATTR_PACK_FG(fg) | WSATTR_PACK_BG(bg) | WSATTR_PACK_FLAG(flag))

struct wsdisplay_emulops sti_emulops = {
.cursor = sti_cursor,
.mapchar = sti_mapchar,
.putchar = sti_putchar,
.copycols = sti_copycols,
.erasecols = sti_erasecols,
.copyrows = sti_copyrows,
.eraserows = sti_eraserows,
.allocattr = sti_alloc_attr
};

const struct wsdisplay_accessops sti_accessops = {
.ioctl = sti_ioctl,
.mmap = sti_mmap,
.alloc_screen = sti_alloc_screen,
.free_screen = sti_free_screen,
.show_screen = sti_show_screen,
.load_font = sti_load_font
};

enum sti_bmove_funcs {
bmf_clear, bmf_copy, bmf_invert, bmf_underline
};

void sti_bmove(struct sti_screen *, int, int, int, int, int, int,
enum sti_bmove_funcs);
int sti_inqcfg(struct sti_screen *, struct sti_inqconfout *);
int sti_setcment(struct sti_screen *, u_int, u_char, u_char, u_char);

struct sti_screen *sti_attach_screen(struct sti_softc *, int);
void sti_describe_screen(struct sti_softc *, struct sti_screen *);

int sti_fetchfonts(struct sti_screen *, struct sti_inqconfout *, uint32_t,
u_int);
void sti_region_setup(struct sti_screen *);
int sti_rom_setup(struct sti_rom *, bus_space_tag_t, bus_space_tag_t,
bus_space_handle_t, bus_addr_t *, u_int);
int sti_screen_setup(struct sti_screen *, int);

int ngle_default_putcmap(struct sti_screen *, u_int, u_int);

#ifndef SMALL_KERNEL
void ngle_artist_setupfb(struct sti_screen *);
void ngle_elk_setupfb(struct sti_screen *);
void ngle_timber_setupfb(struct sti_screen *);
void summit_setupfb(struct sti_screen *);
int ngle_putcmap(struct sti_screen *, u_int, u_int);
int ngle_hcrx_putcmap(struct sti_screen *, u_int, u_int);
int summit_putcmap(struct sti_screen *, u_int, u_int);
#endif

#define STI_ENABLE_ROM(sc) \
do { \
if ((sc) != NULL && (sc)->sc_enable_rom != NULL) \
(*(sc)->sc_enable_rom)(sc); \
} while (0)
#define STI_DISABLE_ROM(sc) \
do { \
if ((sc) != NULL && (sc)->sc_disable_rom != NULL) \
(*(sc)->sc_disable_rom)(sc); \
} while (0)

/* Macros to read larger than 8 bit values from byte roms */
#define parseshort(o) \
((bus_space_read_1(memt, romh, (o) + 3) << 8) | \
(bus_space_read_1(memt, romh, (o) + 7)))
#define parseword(o) \
((bus_space_read_1(memt, romh, (o) + 3) << 24) | \
(bus_space_read_1(memt, romh, (o) + 7) << 16) | \
(bus_space_read_1(memt, romh, (o) + 11) << 8) | \
(bus_space_read_1(memt, romh, (o) + 15)))

int
sti_attach_common(struct sti_softc *sc, bus_space_tag_t iot,
bus_space_tag_t memt, bus_space_handle_t romh, u_int codebase)
{
struct sti_rom *rom;
int rc;

rom = (struct sti_rom *)malloc(sizeof(*rom), M_DEVBUF,
M_WAITOK | M_ZERO);
rom->rom_softc = sc;
rc = sti_rom_setup(rom, iot, memt, romh, sc->bases, codebase);
if (rc != 0) {
free(rom, M_DEVBUF);
return rc;
}

sc->sc_rom = rom;

sti_describe(sc);

sc->sc_scr = sti_attach_screen(sc,
sc->sc_flags & STI_CONSOLE ? 0 : STI_CLEARSCR);
if (sc->sc_scr == NULL)
rc = ENOMEM;

return rc;
}

struct sti_screen *
sti_attach_screen(struct sti_softc *sc, int flags)
{
struct sti_screen *scr;
int rc;

scr = (struct sti_screen *)malloc(sizeof(*scr), M_DEVBUF,
M_WAITOK | M_ZERO);
scr->scr_rom = sc->sc_rom;
rc = sti_screen_setup(scr, flags);
if (rc != 0) {
free(scr, M_DEVBUF);
return NULL;
}

sti_describe_screen(sc, scr);

return scr;
}

int
sti_rom_setup(struct sti_rom *rom, bus_space_tag_t iot, bus_space_tag_t memt,
bus_space_handle_t romh, bus_addr_t *bases, u_int codebase)
{
struct sti_dd *dd;
int error, size, i;

KASSERT(rom != NULL);
STI_ENABLE_ROM(rom->rom_softc);

rom->iot = iot;
rom->memt = memt;
rom->romh = romh;
rom->bases = bases;

/*
* Get ROM header and code function pointers.
*/

dd = &rom->rom_dd;
rom->rom_devtype = bus_space_read_1(memt, romh, 3);
if (rom->rom_devtype == STI_DEVTYPE1) {
dd->dd_type = bus_space_read_1(memt, romh, 0x03);
dd->dd_nmon = bus_space_read_1(memt, romh, 0x07);
dd->dd_grrev = bus_space_read_1(memt, romh, 0x0b);
dd->dd_lrrev = bus_space_read_1(memt, romh, 0x0f);
dd->dd_grid[0] = parseword(0x10);
dd->dd_grid[1] = parseword(0x20);
dd->dd_fntaddr = parseword(0x30) & ~3;
dd->dd_maxst = parseword(0x40);
dd->dd_romend = parseword(0x50) & ~3;
dd->dd_reglst = parseword(0x60) & ~3;
dd->dd_maxreent = parseshort(0x70);
dd->dd_maxtimo = parseshort(0x78);
dd->dd_montbl = parseword(0x80) & ~3;
dd->dd_udaddr = parseword(0x90) & ~3;
dd->dd_stimemreq = parseword(0xa0);
dd->dd_udsize = parseword(0xb0);
dd->dd_pwruse = parseshort(0xc0);
dd->dd_bussup = bus_space_read_1(memt, romh, 0xcb);
dd->dd_ebussup = bus_space_read_1(memt, romh, 0xcf);
dd->dd_altcodet = bus_space_read_1(memt, romh, 0xd3);
dd->dd_eddst[0] = bus_space_read_1(memt, romh, 0xd7);
dd->dd_eddst[1] = bus_space_read_1(memt, romh, 0xdb);
dd->dd_eddst[2] = bus_space_read_1(memt, romh, 0xdf);
dd->dd_cfbaddr = parseword(0xe0) & ~3;

codebase <<= 2;
dd->dd_pacode[0x0] = parseword(codebase + 0x000) & ~3;
dd->dd_pacode[0x1] = parseword(codebase + 0x010) & ~3;
dd->dd_pacode[0x2] = parseword(codebase + 0x020) & ~3;
dd->dd_pacode[0x3] = parseword(codebase + 0x030) & ~3;
dd->dd_pacode[0x4] = parseword(codebase + 0x040) & ~3;
dd->dd_pacode[0x5] = parseword(codebase + 0x050) & ~3;
dd->dd_pacode[0x6] = parseword(codebase + 0x060) & ~3;
dd->dd_pacode[0x7] = parseword(codebase + 0x070) & ~3;
dd->dd_pacode[0x8] = parseword(codebase + 0x080) & ~3;
dd->dd_pacode[0x9] = parseword(codebase + 0x090) & ~3;
dd->dd_pacode[0xa] = parseword(codebase + 0x0a0) & ~3;
dd->dd_pacode[0xb] = parseword(codebase + 0x0b0) & ~3;
dd->dd_pacode[0xc] = parseword(codebase + 0x0c0) & ~3;
dd->dd_pacode[0xd] = parseword(codebase + 0x0d0) & ~3;
dd->dd_pacode[0xe] = parseword(codebase + 0x0e0) & ~3;
dd->dd_pacode[0xf] = parseword(codebase + 0x0f0) & ~3;
} else { /* STI_DEVTYPE4 */
bus_space_read_region_stream_4(memt, romh, 0, (uint32_t *)dd,
sizeof(*dd) / 4);
/* fix pacode... */
bus_space_read_region_stream_4(memt, romh, codebase,
(uint32_t *)dd->dd_pacode, sizeof(dd->dd_pacode) / 4);
}

STI_DISABLE_ROM(rom->rom_softc);

DPRINTF(("dd:\n"
"devtype=%x, rev=%x;%d, altt=%x, gid=%08x%08x, font=%x, mss=%x\n"
"end=%x, regions=%x, msto=%x, timo=%d, mont=%x, user=%x[%x]\n"
"memrq=%x, pwr=%d, bus=%x, ebus=%x, cfb=%x\n"
"code=",
dd->dd_type & 0xff, dd->dd_grrev, dd->dd_lrrev, dd->dd_altcodet,
dd->dd_grid[0], dd->dd_grid[1], dd->dd_fntaddr, dd->dd_maxst,
dd->dd_romend, dd->dd_reglst, dd->dd_maxreent, dd->dd_maxtimo,
dd->dd_montbl, dd->dd_udaddr, dd->dd_udsize, dd->dd_stimemreq,
dd->dd_pwruse, dd->dd_bussup, dd->dd_ebussup, dd->dd_cfbaddr));
DPRINTF(("%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x\n",
dd->dd_pacode[0x0], dd->dd_pacode[0x1], dd->dd_pacode[0x2],
dd->dd_pacode[0x3], dd->dd_pacode[0x4], dd->dd_pacode[0x5],
dd->dd_pacode[0x6], dd->dd_pacode[0x7], dd->dd_pacode[0x8],
dd->dd_pacode[0x9], dd->dd_pacode[0xa], dd->dd_pacode[0xb],
dd->dd_pacode[0xc], dd->dd_pacode[0xd], dd->dd_pacode[0xe],
dd->dd_pacode[0xf]));

/*
* Figure out how many bytes we need for the STI code.
* Note there could be fewer than STI_END pointer entries
* populated, especially on older devices.
*/
for (i = STI_END; dd->dd_pacode[i] == 0; i--)
;

size = dd->dd_pacode[i] - dd->dd_pacode[STI_BEGIN];

if (rom->rom_devtype == STI_DEVTYPE1)
size = (size + 3) / 4;
if (size == 0) {
aprint_error(": no code for the requested platform\n");
return EINVAL;
}

if (!(rom->rom_code = uvm_km_alloc(kernel_map, round_page(size), 0,
UVM_KMF_WIRED))) {
aprint_error(": cannot allocate %u bytes for code\n", size);
return ENOMEM;
}
DPRINTF(("code=0x%lx[%x]\n", rom->rom_code, size));

/*
* Copy code into memory and make it executable.
*/

STI_ENABLE_ROM(rom->rom_softc);

if (rom->rom_devtype == STI_DEVTYPE1) {
uint8_t *p;
uint32_t addr, eaddr;

p = (uint8_t *)rom->rom_code;

for (addr = dd->dd_pacode[STI_BEGIN], eaddr = addr + size * 4;
addr < eaddr; addr += 4 ) {
*p++ = bus_space_read_4(memt, romh, addr) & 0xff;
}
} else { /* STI_DEVTYPE4 */
bus_space_read_region_stream_4(memt, romh,
dd->dd_pacode[STI_BEGIN], (uint32_t *)rom->rom_code,
size / 4);
}

STI_DISABLE_ROM(rom->rom_softc);

if ((error = uvm_map_protect(kernel_map, rom->rom_code,
rom->rom_code + round_page(size), UVM_PROT_RX, FALSE))) {
aprint_error(": uvm_map_protect failed (%d)\n", error);
uvm_km_free(kernel_map, rom->rom_code, round_page(size),
UVM_KMF_WIRED);
return error;
}

/*
* Setup code function pointers.
*/

#define O(i) \
(dd->dd_pacode[(i)] == 0 ? 0 : \
(rom->rom_code + (dd->dd_pacode[(i)] - dd->dd_pacode[0]) / \
(rom->rom_devtype == STI_DEVTYPE1 ? 4 : 1)))

rom->init = (sti_init_t)O(STI_INIT_GRAPH);
rom->mgmt = (sti_mgmt_t)O(STI_STATE_MGMT);
rom->unpmv = (sti_unpmv_t)O(STI_FONT_UNPMV);
rom->blkmv = (sti_blkmv_t)O(STI_BLOCK_MOVE);
rom->test = (sti_test_t)O(STI_SELF_TEST);
rom->exhdl = (sti_exhdl_t)O(STI_EXCEP_HDLR);
rom->inqconf = (sti_inqconf_t)O(STI_INQ_CONF);
rom->scment = (sti_scment_t)O(STI_SCM_ENT);
rom->dmac = (sti_dmac_t)O(STI_DMA_CTRL);
rom->flowc = (sti_flowc_t)O(STI_FLOW_CTRL);
rom->utiming = (sti_utiming_t)O(STI_UTIMING);
rom->pmgr = (sti_pmgr_t)O(STI_PROC_MGR);
rom->util = (sti_util_t)O(STI_UTIL);

#undef O

/*
* Set colormap entry is not implemented until 8.04, so force
* a NULL pointer here.
*/
if (dd->dd_grrev < STI_REVISION(8, 4)) {
rom->scment = NULL;
}

return 0;
}

/*
* Map all regions.
*/
void
sti_region_setup(struct sti_screen *scr)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t romh = rom->romh;
bus_addr_t *bases = rom->bases;
struct sti_dd *dd = &rom->rom_dd;
struct sti_cfg *cc = &scr->scr_cfg;
struct sti_region regions[STI_REGION_MAX], *r;
u_int regno, regcnt;
bus_addr_t addr;

DPRINTF(("stiregions @ %x:\n", dd->dd_reglst));

/*
* Read the region information.
*/

STI_ENABLE_ROM(rom->rom_softc);

if (rom->rom_devtype == STI_DEVTYPE1) {
for (regno = 0; regno < STI_REGION_MAX; regno++)
*(u_int *)(regions + regno) =
parseword(dd->dd_reglst + regno * 0x10);
} else {
bus_space_read_region_stream_4(memt, romh, dd->dd_reglst,
(uint32_t *)regions, sizeof(regions) / 4);
}

STI_DISABLE_ROM(rom->rom_softc);

/*
* Count them.
*/

for (regcnt = 0, r = regions; regcnt < STI_REGION_MAX; regcnt++, r++)
if (r->last)
break;
regcnt++;

/*
* Map them.
*/

for (regno = 0, r = regions; regno < regcnt; regno++, r++) {
if (r->length == 0)
continue;

/*
* Assume an existing mapping exists.
*/
addr = bases[regno] + (r->offset << STI_PGSHIFT);
DPRINTF(("%08x @ 0x%08x%s%s%s%s",
r->length << STI_PGSHIFT, (int)addr,
r->sys_only ? " sys" : "",
r->cache ? " cache" : "", r->btlb ? " btlb" : "",
r->last ? " last" : ""));

/*
* Region #0 is always the rom, and it should have been
* mapped already.
* XXX This expects a 1:1 mapping...
*/
if (regno == 0 && romh == bases[0]) {
cc->regions[0] = addr;
DPRINTF(("\n"));
continue;
}

if (bus_space_map(memt, addr, r->length << STI_PGSHIFT,
BUS_SPACE_MAP_LINEAR | (r->cache ?
BUS_SPACE_MAP_CACHEABLE : 0), &rom->regh[regno]) != 0) {
rom->regh[regno] = romh; /* XXX */
DPRINTF((" - already mapped region\n"));
} else {
addr = (bus_addr_t)
bus_space_vaddr(memt, rom->regh[regno]);
if (regno == 1) {
DPRINTF((" - fb"));
scr->fbaddr = addr;
scr->fblen = r->length << STI_PGSHIFT;
}
DPRINTF(("\n"));
}

cc->regions[regno] = addr;
}

#ifdef STIDEBUG
/*
* Make sure we'll trap accessing unmapped regions
*/
for (regno = 0; regno < STI_REGION_MAX; regno++)
if (cc->regions[regno] == 0)
cc->regions[regno] = 0x81234567;
#endif
}

int
sti_screen_setup(struct sti_screen *scr, int flags)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t romh = rom->romh;
struct sti_dd *dd = &rom->rom_dd;
struct sti_cfg *cc = &scr->scr_cfg;
struct sti_inqconfout cfg;
struct sti_einqconfout ecfg;
#ifdef STIDEBUG
char buf[256];
#endif
int error, i;
int geometry_kluge = 0;
u_int fontindex = 0;

KASSERT(scr != NULL);
memset(cc, 0, sizeof(*cc));
cc->ext_cfg = &scr->scr_ecfg;
memset(cc->ext_cfg, 0, sizeof(*cc->ext_cfg));

if (dd->dd_stimemreq) {
scr->scr_ecfg.addr =
malloc(dd->dd_stimemreq, M_DEVBUF, M_WAITOK);
}

sti_region_setup(scr);

if ((error = sti_init(scr, 0))) {
aprint_error(": cannot initialize (%d)\n", error);
goto fail;
}

memset(&cfg, 0, sizeof(cfg));
memset(&ecfg, 0, sizeof(ecfg));
cfg.ext = &ecfg;
if ((error = sti_inqcfg(scr, &cfg))) {
aprint_error(": error %d inquiring config\n", error);
goto fail;
}

/*
* Older (rev 8.02) boards report wrong offset values,
* similar to the displayable area size, at least in m68k mode.
* Attempt to detect this and adjust here.
*/
if (cfg.owidth == cfg.width &&
cfg.oheight == cfg.height)
geometry_kluge = 1;

if (geometry_kluge) {
scr->scr_cfg.oscr_width = cfg.owidth =
cfg.fbwidth - cfg.width;
scr->scr_cfg.oscr_height = cfg.oheight =
cfg.fbheight - cfg.height;
}

/*
* Save a few fields for sti_describe_screen() later
*/
scr->fbheight = cfg.fbheight;
scr->fbwidth = cfg.fbwidth;
scr->oheight = cfg.oheight;
scr->owidth = cfg.owidth;
memcpy(scr->name, cfg.name, sizeof(scr->name));

if (flags & STI_FBMODE) {
/* we're done here */
sti_init(scr, STI_FBMODE);
return 0;
}

if ((error = sti_init(scr, STI_TEXTMODE | flags))) {
aprint_error(": cannot initialize (%d)\n", error);
goto fail;
}
#ifdef STIDEBUG
snprintb(buf, sizeof(buf), STI_INQCONF_BITS, cfg.attributes);
DPRINTF(("conf: bpp=%d planes=%d attr=%s\n"
"crt=0x%x:0x%x:0x%x hw=0x%x:0x%x:0x%x\n", cfg.bpp,
cfg.planes, buf,
ecfg.crt_config[0], ecfg.crt_config[1], ecfg.crt_config[2],
ecfg.crt_hw[0], ecfg.crt_hw[1], ecfg.crt_hw[2]));
#endif
scr->scr_bpp = cfg.bppu;

/*
* Although scr->scr_ecfg.current_monitor is not filled by
* sti_init() as expected, we can nevertheless walk the monitor
* list, if there is any, and if we find a mode matching our
* resolution, pick its font index.
*/
if (dd->dd_montbl != 0) {
STI_ENABLE_ROM(rom->rom_softc);

for (i = 0; i < dd->dd_nmon; i++) {
u_int offs = dd->dd_montbl + 8 * i;
uint32_t m[2];
sti_mon_t mon = (void *)m;
if (rom->rom_devtype == STI_DEVTYPE1) {
m[0] = parseword(4 * offs);
m[1] = parseword(4 * (offs + 4));
} else {
bus_space_read_region_stream_4(memt, romh, offs,
(uint32_t *)mon, sizeof(*mon) / 4);
}

if (mon->width == scr->scr_cfg.scr_width &&
mon->height == scr->scr_cfg.scr_height) {
fontindex = mon->font;
break;
}
}

STI_DISABLE_ROM(rom->rom_softc);

DPRINTF(("font index: %d\n", fontindex));
}

if ((error = sti_fetchfonts(scr, &cfg, dd->dd_fntaddr, fontindex))) {
aprint_error(": cannot fetch fonts (%d)\n", error);
goto fail;
}

/*
* setup screen descriptions:
* figure number of fonts supported;
* allocate wscons structures;
* calculate dimensions.
*/

scr->scr_wsd.name = "std";
scr->scr_wsd.ncols = cfg.width / scr->scr_curfont.width;
scr->scr_wsd.nrows = cfg.height / scr->scr_curfont.height;
scr->scr_wsd.textops = &sti_emulops;
scr->scr_wsd.fontwidth = scr->scr_curfont.width;
scr->scr_wsd.fontheight = scr->scr_curfont.height;
scr->scr_wsd.capabilities = WSSCREEN_REVERSE;

scr->scr_scrlist[0] = &scr->scr_wsd;
scr->scr_screenlist.nscreens = 1;
scr->scr_screenlist.screens = scr->scr_scrlist;

#ifndef SMALL_KERNEL
/*
* Decide which board-specific routines to use.
*/

switch (dd->dd_grid[0]) {
case STI_DD_CRX:
scr->setupfb = ngle_elk_setupfb;
scr->putcmap = ngle_putcmap;

scr->reg10_value = 0x13601000;
if (scr->scr_bpp > 8)
scr->reg12_value = NGLE_BUFF1_CMAP3;
else
scr->reg12_value = NGLE_BUFF1_CMAP0;
scr->cmap_finish_register = NGLE_REG_1;
break;

case STI_DD_TIMBER:
scr->setupfb = ngle_timber_setupfb;
scr->putcmap = ngle_putcmap;

scr->reg10_value = 0x13602000;
scr->reg12_value = NGLE_BUFF1_CMAP0;
scr->cmap_finish_register = NGLE_REG_1;
break;

case STI_DD_ARTIST:
scr->setupfb = ngle_artist_setupfb;
scr->putcmap = ngle_putcmap;

scr->reg10_value = 0x13601000;
scr->reg12_value = NGLE_ARTIST_CMAP0;
scr->cmap_finish_register = NGLE_REG_26;
break;

case STI_DD_EG:
scr->setupfb = ngle_artist_setupfb;
scr->putcmap = ngle_putcmap;

scr->reg10_value = 0x13601000;
if (scr->scr_bpp > 8) {
scr->reg12_value = NGLE_BUFF1_CMAP3;
scr->cmap_finish_register = NGLE_REG_1;
} else {
scr->reg12_value = NGLE_ARTIST_CMAP0;
scr->cmap_finish_register = NGLE_REG_26;
}
break;

case STI_DD_HCRX:
scr->setupfb = ngle_elk_setupfb;
scr->putcmap = ngle_hcrx_putcmap;

if (scr->scr_bpp > 8) {
scr->reg12_value = NGLE_BUFF1_CMAP3;
scr->reg10_value = 0xBBA0A000;
} else {
scr->reg12_value = NGLE_BUFF1_CMAP0;
scr->reg10_value = 0x13602000;
}
scr->cmap_finish_register = NGLE_REG_38;
break;

case STI_DD_SUMMIT:
case STI_DD_LEGO:
scr->setupfb = summit_setupfb;
scr->putcmap = summit_putcmap;
scr->scr_bpp = 8; /* for now */
break;

case STI_DD_EVRX:
case STI_DD_382C:
case STI_DD_3X2V:
/*
* EVRX, 382C, and 3X2V are available only on hp300 models
* and board specific routines are handled by MD
* sti_machdep_attach() in arch/hp300/dev/sti_machdep.c.
*/
break;

case STI_DD_GRX:
case STI_DD_CRX24:
case STI_DD_DUAL_CRX:
case STI_DD_PINNACLE:
default:
scr->setupfb = NULL;
scr->putcmap =
rom->scment == NULL ? NULL : ngle_default_putcmap;
break;
}
#endif

return 0;

fail:
/* XXX free resources */
if (scr->scr_ecfg.addr != NULL) {
free(scr->scr_ecfg.addr, M_DEVBUF);
scr->scr_ecfg.addr = NULL;
}

return ENXIO;
}

void
sti_describe_screen(struct sti_softc *sc, struct sti_screen *scr)
{
struct sti_font *fp = &scr->scr_curfont;

aprint_normal("%s: %s, %dx%d frame buffer, %dx%dx%d display\n",
device_xname(sc->sc_dev), scr->name, scr->fbwidth, scr->fbheight,
scr->scr_cfg.scr_width, scr->scr_cfg.scr_height, scr->scr_bpp);

aprint_normal("%s: %dx%d font type %d, %d bpc, charset %d-%d\n",
device_xname(sc->sc_dev), fp->width, fp->height,
fp->type, fp->bpc, fp->first, fp->last);
}

void
sti_describe(struct sti_softc *sc)
{
struct sti_rom *rom = sc->sc_rom;
struct sti_dd *dd = &rom->rom_dd;

aprint_normal(": rev %d.%02d;%d, ID 0x%08X%08X\n",
dd->dd_grrev >> 4, dd->dd_grrev & 0xf,
dd->dd_lrrev, dd->dd_grid[0], dd->dd_grid[1]);

if (sc->sc_scr != NULL)
sti_describe_screen(sc, sc->sc_scr);
}

/*
* Final part of attachment. On hppa where we use the PDC console
* during autoconf, this has to be postponed until autoconf has
* completed.
*/
void
sti_end_attach(struct sti_softc *sc)
{
struct sti_screen *scr = sc->sc_scr;

if (scr == NULL)
return;
#if NWSDISPLAY > 0
else {
struct wsemuldisplaydev_attach_args waa;
scr->scr_wsmode = WSDISPLAYIO_MODE_EMUL;

waa.console = sc->sc_flags & STI_CONSOLE ? 1 : 0;
waa.scrdata = &scr->scr_screenlist;
waa.accessops = &sti_accessops;
waa.accesscookie = scr;

/* attach as console if required */
if (waa.console && !ISSET(sc->sc_flags, STI_ATTACHED)) {
long defattr;

sti_alloc_attr(scr, 0, 0, 0, &defattr);
wsdisplay_cnattach(&scr->scr_wsd, scr,
0, scr->scr_wsd.nrows - 1, defattr);
sc->sc_flags |= STI_ATTACHED;
}

config_found(sc->sc_dev, &waa, wsemuldisplaydevprint,
CFARGS_NONE);
}
#endif
}

u_int
sti_rom_size(bus_space_tag_t memt, bus_space_handle_t romh)
{
int devtype;
u_int romend;

devtype = bus_space_read_1(memt, romh, 3);
if (devtype == STI_DEVTYPE4) {
bus_space_read_region_stream_4(memt, romh, STI_DEV4_DD_ROMEND,
(uint32_t *)&romend, 1);
} else {
romend = parseword(STI_DEV1_DD_ROMEND);
}

DPRINTF(("%s: %08x (%08x)\n", __func__, romend, round_page(romend)));

return round_page(romend);
}

int
sti_fetchfonts(struct sti_screen *scr, struct sti_inqconfout *cfg,
uint32_t baseaddr, u_int fontindex)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t romh = rom->romh;
struct sti_font *fp = &scr->scr_curfont;
uint32_t addr;
int size;
#ifdef notyet
int uc;
struct {
struct sti_unpmvflags flags;
struct sti_unpmvin in;
struct sti_unpmvout out;
} a;
#endif

/*
* Get the first PROM font in memory
*/

STI_ENABLE_ROM(rom->rom_softc);

rescan:
addr = baseaddr;
do {
if (rom->rom_devtype == STI_DEVTYPE1) {
fp->first = parseshort(addr + 0x00);
fp->last = parseshort(addr + 0x08);
fp->width = bus_space_read_1(memt, romh, addr + 0x13);
fp->height = bus_space_read_1(memt, romh, addr + 0x17);
fp->type = bus_space_read_1(memt, romh, addr + 0x1b);
fp->bpc = bus_space_read_1(memt, romh, addr + 0x1f);
fp->next = parseword(addr + 0x20);
fp->uheight= bus_space_read_1(memt, romh, addr + 0x33);
fp->uoffset= bus_space_read_1(memt, romh, addr + 0x37);
} else { /* STI_DEVTYPE4 */
bus_space_read_region_stream_4(memt, romh, addr,
(uint32_t *)fp, sizeof(struct sti_font) / 4);
}

#ifdef STIDEBUG
STI_DISABLE_ROM(rom->rom_softc);
DPRINTF(("%s: %dx%d font type %d, %d bpc, charset %d-%d\n",
scr->scr_rom->rom_softc == NULL ? __func__ :
device_xname(scr->scr_rom->rom_softc->sc_dev), fp->width,
fp->height, fp->type, fp->bpc, fp->first, fp->last));
STI_ENABLE_ROM(rom->rom_softc);
#endif

if (fontindex == 0) {
size = sizeof(struct sti_font) +
(fp->last - fp->first + 1) * fp->bpc;
if (rom->rom_devtype == STI_DEVTYPE1)
size *= 4;
scr->scr_romfont = malloc(size, M_DEVBUF, M_WAITOK);

bus_space_read_region_stream_4(memt, romh, addr,
(uint32_t *)scr->scr_romfont, size / 4);
break;
}

addr = baseaddr + fp->next;
fontindex--;
} while (fp->next != 0);

/*
* If our font index was bogus, we did not find the expected font.
* In this case, pick the first one and be done with it.
*/
if (fp->next == 0 && scr->scr_romfont == NULL) {
fontindex = 0;
goto rescan;
}

STI_DISABLE_ROM(rom->rom_softc);

#ifdef notyet
/*
* If there is enough room in the off-screen framebuffer memory,
* display all the characters there in order to display them
* faster with blkmv operations rather than unpmv later on.
*/
if (size <= cfg->fbheight *
(cfg->fbwidth - cfg->width - cfg->owidth)) {
memset(&a, 0, sizeof(a));
a.flags.flags = STI_UNPMVF_WAIT;
a.in.fg_colour = STI_COLOUR_WHITE;
a.in.bg_colour = STI_COLOUR_BLACK;
a.in.font_addr = scr->scr_romfont;

scr->scr_fontmaxcol = cfg->fbheight / fp->height;
scr->scr_fontbase = cfg->width + cfg->owidth;
for (uc = fp->first; uc <= fp->last; uc++) {
a.in.x = ((uc - fp->first) / scr->scr_fontmaxcol) *
fp->width + scr->scr_fontbase;
a.in.y = ((uc - fp->first) % scr->scr_fontmaxcol) *
fp->height;
a.in.index = uc;

(*scr->unpmv)(&a.flags, &a.in, &a.out, &scr->scr_cfg);
if (a.out.errno) {
aprint_error_dev(sc->sc_dev, "unpmv %d "
"returned %d\n", uc, a.out.errno);
return 0;
}
}

free(scr->scr_romfont, M_DEVBUF);
scr->scr_romfont = NULL;
}
#endif

return 0;
}

/*
* Wrappers around STI code pointers
*/

int
sti_init(struct sti_screen *scr, int mode)
{
struct sti_rom *rom = scr->scr_rom;
struct {
struct sti_initflags flags;
struct sti_initin in;
struct sti_einitin ein;
struct sti_initout out;
} a;

KASSERT(rom != NULL);
memset(&a, 0, sizeof(a));

a.flags.flags = STI_INITF_WAIT | STI_INITF_PBET | STI_INITF_PBETI;
if ((mode & STI_TEXTMODE) != 0) {
a.flags.flags |= STI_INITF_TEXT | STI_INITF_CMB |
STI_INITF_PBET | STI_INITF_PBETI | STI_INITF_ICMT;
a.in.text_planes = 1;
} else {
a.flags.flags |= STI_INITF_TEXT | STI_INITF_NTEXT;
/*
* Request as many text planes as STI will allow.
* The reason to do this - when switching to framebuffer mode
* for X we need access to all planes. In theory STI should do
* just that when we request access to both text and non-text
* planes as above.
* In reality though, at least on my PCI Visualize EG, some
* planes and/or colour registers remain inaccessible if we
* request only one text plane.
* Clearly we're missing a register write or two here, but so
* far I haven't found it.
*/
a.in.text_planes = 3;
}
if ((mode & STI_CLEARSCR) != 0)
a.flags.flags |= STI_INITF_CLEAR;

a.in.ext_in = &a.ein;

DPRINTF(("%s: init,%p(%x, %p, %p, %p)\n",
rom->rom_softc == NULL ? __func__ :
device_xname(rom->rom_softc->sc_dev), rom->init, a.flags.flags,
&a.in, &a.out, &scr->scr_cfg));

(*rom->init)(&a.flags, &a.in, &a.out, &scr->scr_cfg);

if (a.out.text_planes != a.in.text_planes)
return -1; /* not colliding with sti errno values */
return a.out.errno;
}

int
sti_inqcfg(struct sti_screen *scr, struct sti_inqconfout *out)
{
struct sti_rom *rom = scr->scr_rom;
struct {
struct sti_inqconfflags flags;
struct sti_inqconfin in;
} a;

memset(&a, 0, sizeof(a));

a.flags.flags = STI_INQCONFF_WAIT;
(*rom->inqconf)(&a.flags, &a.in, out, &scr->scr_cfg);

return out->errno;
}

void
sti_bmove(struct sti_screen *scr, int x1, int y1, int x2, int y2, int h, int w,
enum sti_bmove_funcs f)
{
struct sti_rom *rom = scr->scr_rom;
struct {
struct sti_blkmvflags flags;
struct sti_blkmvin in;
struct sti_blkmvout out;
} a;

memset(&a, 0, sizeof(a));

a.flags.flags = STI_BLKMVF_WAIT;
switch (f) {
case bmf_clear:
a.flags.flags |= STI_BLKMVF_CLR;
a.in.bg_colour = STI_COLOUR_BLACK;
break;
case bmf_underline:
case bmf_copy:
a.in.fg_colour = STI_COLOUR_WHITE;
a.in.bg_colour = STI_COLOUR_BLACK;
break;
case bmf_invert:
a.flags.flags |= STI_BLKMVF_COLR;
a.in.fg_colour = STI_COLOUR_BLACK;
a.in.bg_colour = STI_COLOUR_WHITE;
break;
}
a.in.srcx = x1;
a.in.srcy = y1;
a.in.dstx = x2;
a.in.dsty = y2;
a.in.height = h;
a.in.width = w;

(*rom->blkmv)(&a.flags, &a.in, &a.out, &scr->scr_cfg);
#ifdef STIDEBUG
if (a.out.errno)
printf("%s: blkmv returned %d\n",
rom->rom_softc == NULL ? __func__ :
device_xname(rom->rom_softc->sc_dev), a.out.errno);
#endif
}

int
sti_setcment(struct sti_screen *scr, u_int i, u_char r, u_char g, u_char b)
{
struct sti_rom *rom = scr->scr_rom;
struct {
struct sti_scmentflags flags;
struct sti_scmentin in;
struct sti_scmentout out;
} a;

memset(&a, 0, sizeof(a));

a.flags.flags = STI_SCMENTF_WAIT;
a.in.entry = i;
a.in.value = (r << 16) | (g << 8) | b;

(*rom->scment)(&a.flags, &a.in, &a.out, &scr->scr_cfg);

return a.out.errno;
}

/*
* wsdisplay accessops
*/
int
sti_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l)
{
struct sti_screen *scr = (struct sti_screen *)v;
struct sti_rom *rom = scr->scr_rom;
struct wsdisplay_fbinfo *wdf;
struct wsdisplay_cmap *cmapp;
u_int mode, idx, count;
int ret;

ret = 0;
switch (cmd) {
case GCID:
*(u_int *)data = rom->rom_dd.dd_grid[0];
break;

case WSDISPLAYIO_GMODE:
*(u_int *)data = scr->scr_wsmode;
break;

case WSDISPLAYIO_SMODE:
mode = *(u_int *)data;
switch (mode) {
case WSDISPLAYIO_MODE_EMUL:
if (scr->scr_wsmode != WSDISPLAYIO_MODE_EMUL)
ret = sti_init(scr, STI_TEXTMODE);
break;
case WSDISPLAYIO_MODE_DUMBFB:
if (scr->scr_wsmode != WSDISPLAYIO_MODE_DUMBFB) {
ret = sti_init(scr, 0);
if (scr->setupfb != NULL)
scr->setupfb(scr);
else
#if 0
ret = sti_init(scr, STI_FBMODE);
#else
ret = EINVAL;
#endif
}
break;
case WSDISPLAYIO_MODE_MAPPED:
default:
ret = EINVAL;
break;
}
if (ret == 0)
scr->scr_wsmode = mode;
break;

case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_STI;
break;

case WSDISPLAYIO_GINFO:
wdf = (struct wsdisplay_fbinfo *)data;
wdf->height = scr->scr_cfg.scr_height;
wdf->width = scr->scr_cfg.scr_width;
wdf->depth = scr->scr_bpp;
if (scr->putcmap == NULL || scr->scr_bpp > 8)
wdf->cmsize = 0;
else
wdf->cmsize = STI_NCMAP;
break;

case WSDISPLAYIO_LINEBYTES:
if (scr->scr_bpp > 8)
*(u_int *)data = scr->scr_cfg.fb_width * 4;
else
*(u_int *)data = scr->scr_cfg.fb_width;
break;

case WSDISPLAYIO_GETCMAP:
if (scr->putcmap == NULL || scr->scr_bpp > 8)
return ENODEV;
cmapp = (struct wsdisplay_cmap *)data;
idx = cmapp->index;
count = cmapp->count;
if (idx >= STI_NCMAP || count > STI_NCMAP - idx)
return EINVAL;
if ((ret = copyout(&scr->scr_rcmap[idx], cmapp->red, count)))
break;
if ((ret = copyout(&scr->scr_gcmap[idx], cmapp->green, count)))
break;
if ((ret = copyout(&scr->scr_bcmap[idx], cmapp->blue, count)))
break;
break;

case WSDISPLAYIO_PUTCMAP:
if (scr->putcmap == NULL || scr->scr_bpp > 8)
return ENODEV;
if (scr->scr_wsmode == WSDISPLAYIO_MODE_EMUL) {
/*
* The hardware palette settings are handled by
* the STI ROM in STI_TEXTMODE and changing cmap
* could cause mangled text colors at least on CRX.
* Updating CMAP in EMUL mode isn't expected anyway
* so just ignore it.
*/
return 0;
}
cmapp = (struct wsdisplay_cmap *)data;
idx = cmapp->index;
count = cmapp->count;
if (idx >= STI_NCMAP || count > STI_NCMAP - idx)
return EINVAL;
if ((ret = copyin(cmapp->red, &scr->scr_rcmap[idx], count)))
break;
if ((ret = copyin(cmapp->green, &scr->scr_gcmap[idx], count)))
break;
if ((ret = copyin(cmapp->blue, &scr->scr_bcmap[idx], count)))
break;
ret = scr->putcmap(scr, idx, count);
break;

case WSDISPLAYIO_SVIDEO:
case WSDISPLAYIO_GVIDEO:
case WSDISPLAYIO_GCURPOS:
case WSDISPLAYIO_SCURPOS:
case WSDISPLAYIO_GCURMAX:
case WSDISPLAYIO_GCURSOR:
case WSDISPLAYIO_SCURSOR:
default:
return ENOTTY; /* not supported yet */
}

return ret;
}

paddr_t
sti_mmap(void *v, void *vs, off_t offset, int prot)
{
struct sti_screen *scr = (struct sti_screen *)v;
struct sti_rom *rom = scr->scr_rom;
paddr_t pa;

if ((offset & PAGE_MASK) != 0)
return -1;

if (offset < 0 || offset >= scr->fblen)
return -1;

if (scr->scr_wsmode != WSDISPLAYIO_MODE_DUMBFB)
return -1;

pa = bus_space_mmap(rom->memt, scr->fbaddr, offset, prot,
BUS_SPACE_MAP_LINEAR);

if (pa == -1)
pa = scr->fbaddr + offset;

return pa;
}

int
sti_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
int *cxp, int *cyp, long *defattr)
{
struct sti_screen *scr = (struct sti_screen *)v;

if (scr->scr_nscreens > 0)
return ENOMEM;

*cookiep = scr;
*cxp = 0;
*cyp = 0;
sti_alloc_attr(scr, 0, 0, 0, defattr);
scr->scr_nscreens++;
return 0;
}

void
sti_free_screen(void *v, void *cookie)
{
struct sti_screen *scr = (struct sti_screen *)v;

scr->scr_nscreens--;
}

int
sti_show_screen(void *v, void *cookie, int waitok, void (*cb)(void *, int, int),
void *cbarg)
{
#if 0
struct sti_screen *scr = (struct sti_screen *)v;
#endif

return 0;
}

int
sti_load_font(void *v, void *cookie, struct wsdisplay_font *font)
{
#if 0
struct sti_screen *scr = (struct sti_screen *)v;
#endif

return -1;
}

/*
* wsdisplay emulops
*/
void
sti_cursor(void *v, int on, int row, int col)
{
struct sti_screen *scr = (struct sti_screen *)v;
struct sti_font *fp = &scr->scr_curfont;

sti_bmove(scr,
col * fp->width, row * fp->height,
col * fp->width, row * fp->height,
fp->height, fp->width, bmf_invert);
}

/*
* ISO 8859-1 part of Unicode to HP Roman font index conversion array.
*/
const uint8_t
sti_unitoroman[0x100 - 0xa0] = {
0xa0, 0xb8, 0xbf, 0xbb, 0xba, 0xbc, 0, 0xbd,
0xab, 0, 0xf9, 0xfb, 0, 0xf6, 0, 0xb0,

0xb3, 0xfe, 0, 0, 0xa8, 0xf3, 0xf4, 0xf2,
0, 0, 0xfa, 0xfd, 0xf7, 0xf8, 0, 0xb9,

0xa1, 0xe0, 0xa2, 0xe1, 0xd8, 0xd0, 0xd3, 0xb4,
0xa3, 0xdc, 0xa4, 0xa5, 0xe6, 0xe5, 0xa6, 0xa7,

0xe3, 0xb6, 0xe8, 0xe7, 0xdf, 0xe9, 0xda, 0,
0xd2, 0xad, 0xed, 0xae, 0xdb, 0xb1, 0xf0, 0xde,

0xc8, 0xc4, 0xc0, 0xe2, 0xcc, 0xd4, 0xd7, 0xb5,
0xc9, 0xc5, 0xc1, 0xcd, 0xd9, 0xd5, 0xd1, 0xdd,

0xe4, 0xb7, 0xca, 0xc6, 0xc2, 0xea, 0xce, 0,
0xd6, 0xcb, 0xc7, 0xc3, 0xcf, 0xb2, 0xf1, 0xef
};

int
sti_mapchar(void *v, int uni, u_int *index)
{
struct sti_screen *scr = (struct sti_screen *)v;
struct sti_font *fp = &scr->scr_curfont;
int c;

switch (fp->type) {
case STI_FONT_HPROMAN8:
if (uni >= 0x80 && uni < 0xa0)
c = -1;
else if (uni >= 0xa0 && uni < 0x100) {
c = (int)sti_unitoroman[uni - 0xa0];
if (c == 0)
c = -1;
} else
c = uni;
break;
default:
c = uni;
break;
}

if (c == -1 || c < fp->first || c > fp->last) {
*index = ' ';
return 0;
}

*index = c;
return 5;
}

void
sti_putchar(void *v, int row, int col, u_int uc, long attr)
{
struct sti_screen *scr = (struct sti_screen *)v;
struct sti_rom *rom = scr->scr_rom;
struct sti_font *fp = &scr->scr_curfont;
int bg, fg;

fg = WSATTR_UNPACK_FG(attr);
bg = WSATTR_UNPACK_BG(attr);

if (scr->scr_romfont != NULL) {
/*
* Font is in memory, use unpmv
*/
struct {
struct sti_unpmvflags flags;
struct sti_unpmvin in;
struct sti_unpmvout out;
} a;

memset(&a, 0, sizeof(a));

a.flags.flags = STI_UNPMVF_WAIT;
a.in.fg_colour = fg;
a.in.bg_colour = bg;
a.in.x = col * fp->width;
a.in.y = row * fp->height;
a.in.font_addr = scr->scr_romfont;
a.in.index = uc;

(*rom->unpmv)(&a.flags, &a.in, &a.out, &scr->scr_cfg);
} else {
/*
* Font is in frame buffer, use blkmv
*/
struct {
struct sti_blkmvflags flags;
struct sti_blkmvin in;
struct sti_blkmvout out;
} a;

memset(&a, 0, sizeof(a));

a.flags.flags = STI_BLKMVF_WAIT;
a.in.fg_colour = fg;
a.in.bg_colour = bg;

a.in.srcx = ((uc - fp->first) / scr->scr_fontmaxcol) *
fp->width + scr->scr_fontbase;
a.in.srcy = ((uc - fp->first) % scr->scr_fontmaxcol) *
fp->height;
a.in.dstx = col * fp->width;
a.in.dsty = row * fp->height;
a.in.height = fp->height;
a.in.width = fp->width;

(*rom->blkmv)(&a.flags, &a.in, &a.out, &scr->scr_cfg);
}
}

void
sti_copycols(void *v, int row, int srccol, int dstcol, int ncols)
{
struct sti_screen *scr = (struct sti_screen *)v;
struct sti_font *fp = &scr->scr_curfont;

sti_bmove(scr,
srccol * fp->width, row * fp->height,
dstcol * fp->width, row * fp->height,
fp->height, ncols * fp->width, bmf_copy);
}

void
sti_erasecols(void *v, int row, int startcol, int ncols, long attr)
{
struct sti_screen *scr = (struct sti_screen *)v;
struct sti_font *fp = &scr->scr_curfont;

sti_bmove(scr,
startcol * fp->width, row * fp->height,
startcol * fp->width, row * fp->height,
fp->height, ncols * fp->width, bmf_clear);
}

void
sti_copyrows(void *v, int srcrow, int dstrow, int nrows)
{
struct sti_screen *scr = (struct sti_screen *)v;
struct sti_font *fp = &scr->scr_curfont;

sti_bmove(scr, 0, srcrow * fp->height, 0, dstrow * fp->height,
nrows * fp->height, scr->scr_cfg.scr_width, bmf_copy);
}

void
sti_eraserows(void *v, int srcrow, int nrows, long attr)
{
struct sti_screen *scr = (struct sti_screen *)v;
struct sti_font *fp = &scr->scr_curfont;

sti_bmove(scr, 0, srcrow * fp->height, 0, srcrow * fp->height,
nrows * fp->height, scr->scr_cfg.scr_width, bmf_clear);
}

int
sti_alloc_attr(void *v, int fg, int bg, int flags, long *pattr)
{
#if 0
struct sti_screen *scr = (struct sti_screen *)v;
#endif

if ((flags & (WSATTR_HILIT | WSATTR_BLINK |
WSATTR_UNDERLINE | WSATTR_WSCOLORS)) != 0)
return EINVAL;
if ((flags & WSATTR_REVERSE) != 0) {
fg = STI_COLOUR_BLACK;
bg = STI_COLOUR_WHITE;
} else {
fg = STI_COLOUR_WHITE;
bg = STI_COLOUR_BLACK;
}

*pattr = WSATTR_PACK(fg, bg, flags);
return 0;
}

/*
* Early console support. Only used on hp300, currently
*/
int
sti_cnattach(struct sti_rom *rom, struct sti_screen *scr, bus_space_tag_t memt,
bus_addr_t *bases, u_int codebase)
{
bus_space_handle_t romh;
u_int romend;
int error;
long defattr;

if ((error = bus_space_map(memt, bases[0], PAGE_SIZE, 0, &romh)) != 0)
return error;

/*
* Compute real PROM size
*/
romend = sti_rom_size(memt, romh);

bus_space_unmap(memt, romh, PAGE_SIZE);

if ((error = bus_space_map(memt, bases[0], romend, 0, &romh)) != 0)
return error;

bases[0] = romh;
if (sti_rom_setup(rom, memt, memt, romh, bases, codebase) != 0)
return -1;
scr->scr_rom = rom;
if (sti_screen_setup(scr, STI_CLEARSCR) != 0)
return -1;

sti_alloc_attr(scr, 0, 0, 0, &defattr);
wsdisplay_cnattach(&scr->scr_wsd, scr, 0, 0, defattr);

return 0;
}

int
ngle_default_putcmap(struct sti_screen *scr, u_int idx, u_int count)
{
int i, ret;

for (i = idx + count - 1; i >= (int)idx; i--)
if ((ret = sti_setcment(scr, i, scr->scr_rcmap[i],
scr->scr_gcmap[i], scr->scr_bcmap[i])))
return EINVAL;

return 0;
}

#ifndef SMALL_KERNEL

void ngle_setup_hw(bus_space_tag_t, bus_space_handle_t);
void ngle_setup_fb(bus_space_tag_t, bus_space_handle_t, uint32_t);
void ngle_setup_attr_planes(struct sti_screen *scr);
void ngle_setup_bt458(struct sti_screen *scr);

#define ngle_bt458_write(memt, memh, r, v) \
bus_space_write_stream_4(memt, memh, NGLE_REG_RAMDAC + ((r) << 2), (v) << 24)

void
ngle_artist_setupfb(struct sti_screen *scr)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t memh = rom->regh[2];

ngle_setup_bt458(scr);

ngle_setup_hw(memt, memh);
ngle_setup_fb(memt, memh, scr->reg10_value);

ngle_setup_attr_planes(scr);

ngle_setup_hw(memt, memh);
bus_space_write_stream_4(memt, memh, NGLE_REG_21,
bus_space_read_stream_4(memt, memh, NGLE_REG_21) | 0x0a000000);
bus_space_write_stream_4(memt, memh, NGLE_REG_27,
bus_space_read_stream_4(memt, memh, NGLE_REG_27) | 0x00800000);
}

void
ngle_elk_setupfb(struct sti_screen *scr)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t memh = rom->regh[2];

ngle_setup_bt458(scr);

ngle_setup_hw(memt, memh);
ngle_setup_fb(memt, memh, scr->reg10_value);

ngle_setup_attr_planes(scr);

ngle_setup_hw(memt, memh);
/* enable overlay planes in Bt458 command register */
ngle_bt458_write(memt, memh, 0x0c, 0x06);
ngle_bt458_write(memt, memh, 0x0e, 0x43);
}

void
ngle_timber_setupfb(struct sti_screen *scr)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t memh = rom->regh[2];

ngle_setup_bt458(scr);

ngle_setup_hw(memt, memh);
/* enable overlay planes in Bt458 command register */
ngle_bt458_write(memt, memh, 0x0c, 0x06);
ngle_bt458_write(memt, memh, 0x0e, 0x43);
}

static void
summit_wait(struct sti_screen *scr)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t memh = rom->regh[0];

while (bus_space_read_stream_4(memt, memh, VISFX_STATUS) != 0)
continue;
}

void
summit_setupfb(struct sti_screen *scr)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t memh = rom->regh[0];

summit_wait(scr);
bus_space_write_stream_4(memt, memh, 0xb08044, 0x1b);
bus_space_write_stream_4(memt, memh, 0xb08048, 0x1b);
bus_space_write_stream_4(memt, memh, 0x920860, 0xe4);
bus_space_write_stream_4(memt, memh, 0xa00818, 0);
bus_space_write_stream_4(memt, memh, 0xa00404, 0);
bus_space_write_stream_4(memt, memh, 0x921110, 0);
bus_space_write_stream_4(memt, memh, 0x9211d8, 0);
bus_space_write_stream_4(memt, memh, 0xa0086c, 0);
bus_space_write_stream_4(memt, memh, 0x921114, 0);
bus_space_write_stream_4(memt, memh, 0xac1050, 0);

bus_space_write_stream_4(memt, memh, VISFX_APERTURE_ACCESS,
VISFX_DEPTH_8);

bus_space_write_stream_4(memt, memh, VISFX_PIXEL_MASK, 0xffffffff);
bus_space_write_stream_4(memt, memh, VISFX_PLANE_MASK, 0xffffffff);
bus_space_write_stream_4(memt, memh, VISFX_VRAM_WRITE_MODE,
VISFX_WRITE_MODE_PLAIN);
bus_space_write_stream_4(memt, memh, VISFX_VRAM_READ_MODE,
VISFX_READ_MODE_COPY);
}

void
ngle_setup_bt458(struct sti_screen *scr)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t memh = rom->regh[2];

ngle_setup_hw(memt, memh);
/* set Bt458 read mask register to all planes */
ngle_bt458_write(memt, memh, 0x08, 0x04);
ngle_bt458_write(memt, memh, 0x0a, 0xff);
}

void
ngle_setup_attr_planes(struct sti_screen *scr)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t memh = rom->regh[2];

ngle_setup_hw(memt, memh);
bus_space_write_stream_4(memt, memh, NGLE_REG_11, 0x2ea0d000);
bus_space_write_stream_4(memt, memh, NGLE_REG_14, 0x23000302);
bus_space_write_stream_4(memt, memh, NGLE_REG_12, scr->reg12_value);
bus_space_write_stream_4(memt, memh, NGLE_REG_8, 0xffffffff);

bus_space_write_stream_4(memt, memh, NGLE_REG_6, 0x00000000);
bus_space_write_stream_4(memt, memh, NGLE_REG_9,
(scr->scr_cfg.scr_width << 16) | scr->scr_cfg.scr_height);
bus_space_write_stream_4(memt, memh, NGLE_REG_6, 0x05000000);
bus_space_write_stream_4(memt, memh, NGLE_REG_9, 0x00040001);

ngle_setup_hw(memt, memh);
bus_space_write_stream_4(memt, memh, NGLE_REG_12, 0x00000000);

ngle_setup_fb(memt, memh, scr->reg10_value);
}

int
ngle_putcmap(struct sti_screen *scr, u_int idx, u_int count)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t memh = rom->regh[2];
uint8_t *r, *g, *b;
uint32_t cmap_finish;

if (scr->scr_bpp > 8)
cmap_finish = 0x83000100;
else
cmap_finish = 0x80000100;

r = scr->scr_rcmap + idx;
g = scr->scr_gcmap + idx;
b = scr->scr_bcmap + idx;

ngle_setup_hw(memt, memh);
bus_space_write_stream_4(memt, memh, NGLE_REG_10, 0xbbe0f000);
bus_space_write_stream_4(memt, memh, NGLE_REG_14, 0x03000300);
bus_space_write_stream_4(memt, memh, NGLE_REG_13, 0xffffffff);

while (count-- != 0) {
ngle_setup_hw(memt, memh);
bus_space_write_stream_4(memt, memh, NGLE_REG_3,
0x400 | (idx << 2));
bus_space_write_stream_4(memt, memh, NGLE_REG_4,
(*r << 16) | (*g << 8) | *b);

idx++;
r++, g++, b++;
}

bus_space_write_stream_4(memt, memh, NGLE_REG_2, 0x400);
bus_space_write_stream_4(memt, memh, scr->cmap_finish_register,
cmap_finish);
ngle_setup_fb(memt, memh, scr->reg10_value);

return 0;
}

int
ngle_hcrx_putcmap(struct sti_screen *scr, u_int idx, u_int count)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t memh = rom->regh[2];
uint8_t *r, *g, *b;
uint32_t cmap_finish;

if (scr->scr_bpp > 8)
cmap_finish = 0x80000100;
else
cmap_finish = 0x82000100;

r = scr->scr_rcmap + idx;
g = scr->scr_gcmap + idx;
b = scr->scr_bcmap + idx;

ngle_setup_hw(memt, memh);
bus_space_write_stream_4(memt, memh, NGLE_REG_10, 0xbbe0f000);
bus_space_write_stream_4(memt, memh, NGLE_REG_14, 0x03000300);
bus_space_write_stream_4(memt, memh, NGLE_REG_13, 0xffffffff);

while (count-- != 0) {
ngle_setup_hw(memt, memh);
bus_space_write_stream_4(memt, memh, NGLE_REG_3,
0x400 | (idx << 2));
bus_space_write_stream_4(memt, memh, NGLE_REG_4,
(*r << 16) | (*g << 8) | *b);

idx++;
r++, g++, b++;
}

bus_space_write_stream_4(memt, memh, NGLE_REG_2, 0x400);
bus_space_write_stream_4(memt, memh, NGLE_REG_38, cmap_finish);
ngle_setup_fb(memt, memh, scr->reg10_value);

return 0;
}

int
summit_putcmap(struct sti_screen *scr, u_int idx, u_int count)
{
struct sti_rom *rom = scr->scr_rom;
bus_space_tag_t memt = rom->memt;
bus_space_handle_t memh = rom->regh[0];
uint8_t *r, *g, *b;

r = scr->scr_rcmap + idx;
g = scr->scr_gcmap + idx;
b = scr->scr_bcmap + idx;

if (rom->rom_dd.dd_grid[0] == STI_DD_LEGO) {
bus_space_write_stream_4(memt, memh, VISFX_COLOR_INDEX, idx);
} else
bus_space_write_stream_4(memt, memh, VISFX_COLOR_INDEX,
0xc0005100 + idx);

while (count-- != 0) {
bus_space_write_stream_4(memt, memh,
VISFX_COLOR_VALUE, (*r << 16) | (*g << 8) | *b);
r++, g++, b++;
}
bus_space_write_stream_4(memt, memh, VISFX_COLOR_MASK, 0xff);
bus_space_write_stream_4(memt, memh, 0x80004c, 0xc);
bus_space_write_stream_4(memt, memh, 0x800000, 0);

return 0;
}

void
ngle_setup_hw(bus_space_tag_t memt, bus_space_handle_t memh)
{
uint8_t stat;

do {
stat = bus_space_read_1(memt, memh, NGLE_REG_15b0);
if (stat == 0)
stat = bus_space_read_1(memt, memh, NGLE_REG_15b0);
} while (stat != 0);
}

void
ngle_setup_fb(bus_space_tag_t memt, bus_space_handle_t memh, uint32_t reg10)
{

ngle_setup_hw(memt, memh);
bus_space_write_stream_4(memt, memh, NGLE_REG_10, reg10);
bus_space_write_stream_4(memt, memh, NGLE_REG_14, 0x83000300);
ngle_setup_hw(memt, memh);
bus_space_write_1(memt, memh, NGLE_REG_16b1, 1);
}
#endif /* SMALL_KERNEL */