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8bbce26c81
NetBSD/sys/dev/sun/cgsix.c
macallan 49deefc7bf fixed a typo in cg6_ras_do_cursor and made using the blitter to draw the 
cursor optional when using RASTERCONSOLE
2005-05-22 03:45:08 +00:00

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/* $NetBSD: cgsix.c,v 1.24 2005/05/22 03:45:08 macallan Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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 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.
*/
/*
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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 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.
*
* @(#)cgsix.c 8.4 (Berkeley) 1/21/94
*/
/*
* color display (cgsix) driver.
*
* Does not handle interrupts, even though they can occur.
*
* XXX should defer colormap updates to vertical retrace interrupts
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cgsix.c,v 1.24 2005/05/22 03:45:08 macallan Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/malloc.h>
#include <sys/mman.h>
#include <sys/tty.h>
#include <sys/conf.h>
#ifdef DEBUG
#include <sys/proc.h>
#include <sys/syslog.h>
#endif
#include <uvm/uvm_extern.h>
#include <machine/bus.h>
#include <dev/sun/fbio.h>
#include <dev/sun/fbvar.h>
#include <dev/sun/btreg.h>
#include <dev/sun/btvar.h>
#include <dev/sun/pfourreg.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wsfont/wsfont.h>
#include <dev/rasops/rasops.h>
#include "opt_wsemul.h"
#include "rasops_glue.h"
#include <dev/sun/cgsixreg.h>
#include <dev/sun/cgsixvar.h>
static void cg6_unblank(struct device *);
extern struct cfdriver cgsix_cd;
dev_type_open(cgsixopen);
dev_type_close(cgsixclose);
dev_type_ioctl(cgsixioctl);
dev_type_mmap(cgsixmmap);
const struct cdevsw cgsix_cdevsw = {
cgsixopen, cgsixclose, noread, nowrite, cgsixioctl,
nostop, notty, nopoll, cgsixmmap, nokqfilter,
};
/* frame buffer generic driver */
static struct fbdriver cg6_fbdriver = {
cg6_unblank, cgsixopen, cgsixclose, cgsixioctl, nopoll, cgsixmmap,
nokqfilter
};
static void cg6_reset (struct cgsix_softc *);
static void cg6_loadcmap (struct cgsix_softc *, int, int);
static void cg6_loadomap (struct cgsix_softc *);
static void cg6_setcursor (struct cgsix_softc *);/* set position */
static void cg6_loadcursor (struct cgsix_softc *);/* set shape */
#if NWSDISPLAY > 0
static void cg6_setup_palette(struct cgsix_softc *);
struct wsscreen_descr cgsix_defaultscreen = {
"std",
0, 0, /* will be filled in -- XXX shouldn't, it's global */
NULL, /* textops */
8, 16, /* font width/height */
WSSCREEN_WSCOLORS /* capabilities */
};
static int cgsix_ioctl(void *, u_long, caddr_t, int, struct proc *);
static paddr_t cgsix_mmap(void *, off_t, int);
void cgsix_init_screen(struct cgsix_softc *, struct cg6_screen *,
int, long *);
static int cgsix_alloc_screen(void *, const struct wsscreen_descr *,
void **, int *, int *, long *);
static void cgsix_free_screen(void *, void *);
static int cgsix_show_screen(void *, void *, int,
void (*) (void *, int, int), void *);
void cgsix_switch_screen(struct cgsix_softc *);
void cgsix_restore_screen(struct cg6_screen *, const struct wsscreen_descr *, u_int16_t *);
void cgsix_clearscreen(struct cgsix_softc *);
void cgsix_setup_mono(struct cgsix_softc *, int, int, int, int, uint32_t,
uint32_t);
void cgsix_feed_line(struct cgsix_softc *, int, uint8_t *);
void cgsix_rectfill(struct cgsix_softc *, int, int, int, int, uint32_t);
int cgsix_putcmap(struct cgsix_softc *, struct wsdisplay_cmap *);
int cgsix_getcmap(struct cgsix_softc *, struct wsdisplay_cmap *);
void cgsix_putchar(void *, int, int, u_int, long);
void cgsix_cursor(void *, int, int, int);
struct wsdisplay_accessops cgsix_accessops = {
cgsix_ioctl,
cgsix_mmap,
cgsix_alloc_screen,
cgsix_free_screen,
cgsix_show_screen,
NULL, /* load_font */
NULL, /* pollc */
NULL, /* getwschar */
NULL, /* putwschar */
NULL /* scroll */
};
const struct wsscreen_descr *_cgsix_scrlist[] = {
&cgsix_defaultscreen
};
struct wsscreen_list cgsix_screenlist = {
sizeof(_cgsix_scrlist) / sizeof(struct wsscreen_descr *),
_cgsix_scrlist
};
extern const u_char rasops_cmap[768];
#endif /* NWSDISPLAY > 0 */
#if (NWSDISPLAY > 0) || defined(RASTERCONSOLE)
void cg6_invert(struct cgsix_softc *, int, int, int, int);
/* need this for both cases because ri_hw points to it */
static struct cg6_screen cg6_console_screen;
#endif
#ifdef RASTERCONSOLE
int cgsix_use_rasterconsole = 1;
#endif
/*
* cg6 accelerated console routines.
*
* Note that buried in this code in several places is the assumption
* that pixels are exactly one byte wide. Since this is cg6-specific
* code, this seems safe. This assumption resides in things like the
* use of ri_emuwidth without messing around with ri_pelbytes, or the
* assumption that ri_font->fontwidth is the right thing to multiply
* character-cell counts by to get byte counts.
*/
/*
* Magic values for blitter
*/
/* Values for the mode register */
#define CG6_MODE ( \
0x00200000 /* GX_BLIT_SRC */ \
| 0x00020000 /* GX_MODE_COLOR8 */ \
| 0x00008000 /* GX_DRAW_RENDER */ \
| 0x00002000 /* GX_BWRITE0_ENABLE */ \
| 0x00001000 /* GX_BWRITE1_DISABLE */ \
| 0x00000200 /* GX_BREAD_0 */ \
| 0x00000080 /* GX_BDISP_0 */ \
)
#define CG6_MODE_MASK ( \
0x00300000 /* GX_BLIT_ALL */ \
| 0x00060000 /* GX_MODE_ALL */ \
| 0x00018000 /* GX_DRAW_ALL */ \
| 0x00006000 /* GX_BWRITE0_ALL */ \
| 0x00001800 /* GX_BWRITE1_ALL */ \
| 0x00000600 /* GX_BREAD_ALL */ \
| 0x00000180 /* GX_BDISP_ALL */ \
)
/* Value for the alu register for screen-to-screen copies */
#define CG6_ALU_COPY ( \
0x80000000 /* GX_PLANE_ONES (ignore planemask register) */ \
| 0x20000000 /* GX_PIXEL_ONES (ignore pixelmask register) */ \
| 0x00800000 /* GX_ATTR_SUPP (function unknown) */ \
| 0x00000000 /* GX_RAST_BOOL (function unknown) */ \
| 0x00000000 /* GX_PLOT_PLOT (function unknown) */ \
| 0x08000000 /* GX_PATTERN_ONES (ignore pattern) */ \
| 0x01000000 /* GX_POLYG_OVERLAP (unsure - handle overlap?) */ \
| 0x0000cccc /* ALU = src */ \
)
/* Value for the alu register for region fills */
#define CG6_ALU_FILL ( \
0x80000000 /* GX_PLANE_ONES (ignore planemask register) */ \
| 0x20000000 /* GX_PIXEL_ONES (ignore pixelmask register) */ \
| 0x00800000 /* GX_ATTR_SUPP (function unknown) */ \
| 0x00000000 /* GX_RAST_BOOL (function unknown) */ \
| 0x00000000 /* GX_PLOT_PLOT (function unknown) */ \
| 0x08000000 /* GX_PATTERN_ONES (ignore pattern) */ \
| 0x01000000 /* GX_POLYG_OVERLAP (unsure - handle overlap?) */ \
| 0x0000ff00 /* ALU = fg color */ \
)
/* Value for the alu register for toggling an area */
#define CG6_ALU_FLIP ( \
0x80000000 /* GX_PLANE_ONES (ignore planemask register) */ \
| 0x20000000 /* GX_PIXEL_ONES (ignore pixelmask register) */ \
| 0x00800000 /* GX_ATTR_SUPP (function unknown) */ \
| 0x00000000 /* GX_RAST_BOOL (function unknown) */ \
| 0x00000000 /* GX_PLOT_PLOT (function unknown) */ \
| 0x08000000 /* GX_PATTERN_ONES (ignore pattern) */ \
| 0x01000000 /* GX_POLYG_OVERLAP (unsure - handle overlap?) */ \
| 0x00005555 /* ALU = ~dst */ \
)
/*
* Wait for a blit to finish.
* 0x8000000 bit: function unknown; 0x20000000 bit: GX_BLT_INPROGRESS
*/
#define CG6_BLIT_WAIT(fbc) do { \
while (((fbc)->fbc_blit & 0xa0000000) == 0xa0000000) \
/*EMPTY*/; \
} while (0)
/*
* Wait for a drawing operation to finish, or at least get queued.
* 0x8000000 bit: function unknown; 0x20000000 bit: GX_FULL
*/
#define CG6_DRAW_WAIT(fbc) do { \
while (((fbc)->fbc_draw & 0xa0000000) == 0xa0000000) \
/*EMPTY*/; \
} while (0)
/*
* Wait for the whole engine to go idle. This may not matter in our case;
* I'm not sure whether blits are actually queued or not. It more likely
* is intended for lines and such that do get queued.
* 0x10000000 bit: GX_INPROGRESS
*/
#define CG6_DRAIN(fbc) do { \
while ((fbc)->fbc_s & 0x10000000) \
/*EMPTY*/; \
} while (0)
#if (NWSDISPLAY > 0) || defined(RASTERCONSOLE)
static void cg6_ras_init(struct cgsix_softc *);
static void cg6_ras_copyrows(void *, int, int, int);
static void cg6_ras_copycols(void *, int, int, int, int);
static void cg6_ras_erasecols(void *, int, int, int, long int);
static void cg6_ras_eraserows(void *, int, int, long int);
#if defined(RASTERCONSOLE) && defined(CG6_BLIT_CURSOR)
static void cg6_ras_do_cursor(struct rasops_info *);
#endif
static void
cg6_ras_init(struct cgsix_softc *sc)
{
volatile struct cg6_fbc *fbc = sc->sc_fbc;
CG6_DRAIN(fbc);
fbc->fbc_mode &= ~CG6_MODE_MASK;
fbc->fbc_mode |= CG6_MODE;
}
static void
cg6_ras_copyrows(void *cookie, int src, int dst, int n)
{
struct rasops_info *ri=cookie;
struct cg6_screen *scr=ri->ri_hw;
struct cgsix_softc *sc=scr->sc;
#if NWSDISPLAY > 0
int from, to, len;
from = ri->ri_cols * src;
to = ri->ri_cols * dst;
len = ri->ri_cols * n;
memmove(&scr->attrs[to], &scr->attrs[from], len * sizeof(long));
memmove(&scr->chars[to], &scr->chars[from], len * sizeof(uint16_t));
if ((scr->active) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
#endif
volatile struct cg6_fbc *fbc = sc->sc_fbc;
if (dst == src)
return;
if (src < 0) {
n += src;
src = 0;
}
if (src+n > ri->ri_rows)
n = ri->ri_rows - src;
if (dst < 0) {
n += dst;
dst = 0;
}
if (dst+n > ri->ri_rows)
n = ri->ri_rows - dst;
if (n <= 0)
return;
n *= ri->ri_font->fontheight;
src *= ri->ri_font->fontheight;
dst *= ri->ri_font->fontheight;
fbc->fbc_clip = 0;
fbc->fbc_s = 0;
fbc->fbc_offx = 0;
fbc->fbc_offy = 0;
fbc->fbc_clipminx = 0;
fbc->fbc_clipminy = 0;
fbc->fbc_clipmaxx = ri->ri_width - 1;
fbc->fbc_clipmaxy = ri->ri_height - 1;
fbc->fbc_alu = CG6_ALU_COPY;
fbc->fbc_x0 = ri->ri_xorigin;
fbc->fbc_y0 = ri->ri_yorigin + src;
fbc->fbc_x1 = ri->ri_xorigin + ri->ri_emuwidth - 1;
fbc->fbc_y1 = ri->ri_yorigin + src + n - 1;
fbc->fbc_x2 = ri->ri_xorigin;
fbc->fbc_y2 = ri->ri_yorigin + dst;
fbc->fbc_x3 = ri->ri_xorigin + ri->ri_emuwidth - 1;
fbc->fbc_y3 = ri->ri_yorigin + dst + n - 1;
CG6_BLIT_WAIT(fbc);
CG6_DRAIN(fbc);
#if NWSDISPLAY > 0
}
#endif
}
static void
cg6_ras_copycols(void *cookie, int row, int src, int dst, int n)
{
struct rasops_info *ri=cookie;
struct cg6_screen *scr=ri->ri_hw;
struct cgsix_softc *sc=scr->sc;
#if NWSDISPLAY > 0
int from, to;
from = src + row * ri->ri_cols;
to = dst + row * ri->ri_cols;
memmove(&scr->attrs[to], &scr->attrs[from], n * sizeof(long));
memmove(&scr->chars[to], &scr->chars[from], n * sizeof(uint16_t));
if ((scr->active) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
#endif
volatile struct cg6_fbc *fbc = sc->sc_fbc;
if (dst == src)
return;
if ((row < 0) || (row >= ri->ri_rows))
return;
if (src < 0) {
n += src;
src = 0;
}
if (src+n > ri->ri_cols)
n = ri->ri_cols - src;
if (dst < 0) {
n += dst;
dst = 0;
}
if (dst+n > ri->ri_cols)
n = ri->ri_cols - dst;
if (n <= 0)
return;
n *= ri->ri_font->fontwidth;
src *= ri->ri_font->fontwidth;
dst *= ri->ri_font->fontwidth;
row *= ri->ri_font->fontheight;
fbc->fbc_clip = 0;
fbc->fbc_s = 0;
fbc->fbc_offx = 0;
fbc->fbc_offy = 0;
fbc->fbc_clipminx = 0;
fbc->fbc_clipminy = 0;
fbc->fbc_clipmaxx = ri->ri_width - 1;
fbc->fbc_clipmaxy = ri->ri_height - 1;
fbc->fbc_alu = CG6_ALU_COPY;
fbc->fbc_x0 = ri->ri_xorigin + src;
fbc->fbc_y0 = ri->ri_yorigin + row;
fbc->fbc_x1 = ri->ri_xorigin + src + n - 1;
fbc->fbc_y1 = ri->ri_yorigin + row +
ri->ri_font->fontheight - 1;
fbc->fbc_x2 = ri->ri_xorigin + dst;
fbc->fbc_y2 = ri->ri_yorigin + row;
fbc->fbc_x3 = ri->ri_xorigin + dst + n - 1;
fbc->fbc_y3 = ri->ri_yorigin + row +
ri->ri_font->fontheight - 1;
CG6_BLIT_WAIT(fbc);
CG6_DRAIN(fbc);
#if NWSDISPLAY > 0
}
#endif
}
static void
cg6_ras_erasecols(void *cookie, int row, int col, int n, long int attr)
{
struct rasops_info *ri=cookie;
struct cg6_screen *scr=ri->ri_hw;
struct cgsix_softc *sc=scr->sc;
#if NWSDISPLAY > 0
int start, end, i;
start = col + row * ri->ri_cols;
end = start + n;
for (i = start; i < end; i++) {
scr->attrs[i] = attr;
scr->chars[i] = 0x20;
}
if ((scr->active) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
#endif
volatile struct cg6_fbc *fbc = sc->sc_fbc;
if ((row < 0) || (row >= ri->ri_rows))
return;
if (col < 0) {
n += col;
col = 0;
}
if (col+n > ri->ri_cols)
n = ri->ri_cols - col;
if (n <= 0)
return;
n *= ri->ri_font->fontwidth;
col *= ri->ri_font->fontwidth;
row *= ri->ri_font->fontheight;
fbc->fbc_clip = 0;
fbc->fbc_s = 0;
fbc->fbc_offx = 0;
fbc->fbc_offy = 0;
fbc->fbc_clipminx = 0;
fbc->fbc_clipminy = 0;
fbc->fbc_clipmaxx = ri->ri_width - 1;
fbc->fbc_clipmaxy = ri->ri_height - 1;
fbc->fbc_alu = CG6_ALU_FILL;
fbc->fbc_fg = ri->ri_devcmap[(attr >> 16) & 0xff];
fbc->fbc_arecty = ri->ri_yorigin + row;
fbc->fbc_arectx = ri->ri_xorigin + col;
fbc->fbc_arecty = ri->ri_yorigin + row +
ri->ri_font->fontheight - 1;
fbc->fbc_arectx = ri->ri_xorigin + col + n - 1;
CG6_DRAW_WAIT(fbc);
CG6_DRAIN(fbc);
#if NWSDISPLAY > 0
}
#endif
}
static void
cg6_ras_eraserows(void *cookie, int row, int n, long int attr)
{
struct rasops_info *ri=cookie;
struct cg6_screen *scr=ri->ri_hw;
struct cgsix_softc *sc=scr->sc;
#if NWSDISPLAY > 0
int start, end, i;
start = ri->ri_cols*row;
end = ri->ri_cols * (row + n);
for (i = start; i < end; i++) {
scr->attrs[i] = attr;
scr->chars[i] = 0x20;
}
if ((scr->active) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
#endif
volatile struct cg6_fbc *fbc = sc->sc_fbc;
if (row < 0) {
n += row;
row = 0;
}
if (row+n > ri->ri_rows)
n = ri->ri_rows - row;
if (n <= 0)
return;
fbc->fbc_clip = 0;
fbc->fbc_s = 0;
fbc->fbc_offx = 0;
fbc->fbc_offy = 0;
fbc->fbc_clipminx = 0;
fbc->fbc_clipminy = 0;
fbc->fbc_clipmaxx = ri->ri_width - 1;
fbc->fbc_clipmaxy = ri->ri_height - 1;
fbc->fbc_alu = CG6_ALU_FILL;
fbc->fbc_fg = ri->ri_devcmap[(attr >> 16) & 0xff];
if ((n == ri->ri_rows) && (ri->ri_flg & RI_FULLCLEAR)) {
fbc->fbc_arecty = 0;
fbc->fbc_arectx = 0;
fbc->fbc_arecty = ri->ri_height - 1;
fbc->fbc_arectx = ri->ri_width - 1;
} else {
row *= ri->ri_font->fontheight;
fbc->fbc_arecty = ri->ri_yorigin + row;
fbc->fbc_arectx = ri->ri_xorigin;
fbc->fbc_arecty = ri->ri_yorigin + row +
(n * ri->ri_font->fontheight) - 1;
fbc->fbc_arectx = ri->ri_xorigin + ri->ri_emuwidth - 1;
}
CG6_DRAW_WAIT(fbc);
CG6_DRAIN(fbc);
#if NWSDISPLAY > 0
}
#endif
}
#if defined(RASTERCONSOLE) && defined(CG6_BLIT_CURSOR)
/*
* Really want something more like fg^bg here, but that would be more
* or less impossible to migrate to colors. So we hope there's
* something not too inappropriate in the colormap...besides, it's what
* the non-accelerated code did. :-)
*/
static void
cg6_ras_do_cursor(struct rasops_info *ri)
{
struct cg6_screen *scr = ri->ri_hw;
struct cgsix_softc *sc = scr->sc;
int row, col;
row = ri->ri_crow * ri->ri_font->fontheight;
col = ri->ri_ccol * ri->ri_font->fontwidth;
cg6_invert(sc, ri->ri_xorigin + col,ri->ri_yorigin +
row, ri->ri_font->fontwidth, ri->ri_font->fontheight);
}
#endif /* RASTERCONSOLE */
#endif /* (NWSDISPLAY > 0) || defined(RASTERCONSOLE) */
void
cg6attach(struct cgsix_softc *sc, char *name, int isconsole)
{
struct fbdevice *fb = &sc->sc_fb;
#if NWSDISPLAY > 0
struct wsemuldisplaydev_attach_args aa;
struct rasops_info *ri = &cg6_console_screen.ri;
unsigned long defattr;
#endif
fb->fb_driver = &cg6_fbdriver;
/* Don't have to map the pfour register on the cgsix. */
fb->fb_pfour = NULL;
fb->fb_type.fb_cmsize = 256;
fb->fb_type.fb_size = sc->sc_ramsize;
/*fb->fb_type.fb_height * fb->fb_linebytes;*/
printf(": %s, %d x %d", name,
fb->fb_type.fb_width, fb->fb_type.fb_height);
if(sc->sc_fhc) {
sc->sc_fhcrev = (*sc->sc_fhc >> FHC_REV_SHIFT) &
(FHC_REV_MASK >> FHC_REV_SHIFT);
} else
sc->sc_fhcrev=-1;
printf(", rev %d", sc->sc_fhcrev);
/* reset cursor & frame buffer controls */
cg6_reset(sc);
/* enable video */
sc->sc_thc->thc_misc |= THC_MISC_VIDEN;
if (isconsole) {
printf(" (console)");
/* this is the old console attachment stuff - sparc still needs it */
#ifdef RASTERCONSOLE
if (cgsix_use_rasterconsole) {
fbrcons_init(&sc->sc_fb);
/*
* we don't use the screen struct but keep it here to
* avoid ugliness in the cg6_ras_* functions
*/
cg6_console_screen.sc = sc;
sc->sc_fb.fb_rinfo.ri_hw = &cg6_console_screen;
sc->sc_fb.fb_rinfo.ri_ops.copyrows = cg6_ras_copyrows;
sc->sc_fb.fb_rinfo.ri_ops.copycols = cg6_ras_copycols;
sc->sc_fb.fb_rinfo.ri_ops.erasecols = cg6_ras_erasecols;
sc->sc_fb.fb_rinfo.ri_ops.eraserows = cg6_ras_eraserows;
#ifdef CG6_BLIT_CURSOR
sc->sc_fb.fb_rinfo.ri_do_cursor = cg6_ras_do_cursor;
#endif
cg6_ras_init(sc);
}
#endif
}
fb_attach(&sc->sc_fb, isconsole);
sc->sc_width = fb->fb_type.fb_width;
sc->sc_stride = fb->fb_type.fb_width;
sc->sc_height = fb->fb_type.fb_height;
printf("\n");
printf("%s: framebuffer size: %d MB\n", sc->sc_dev.dv_xname,
sc->sc_ramsize >> 20);
#if NWSDISPLAY
/* setup rasops and so on for wsdisplay */
wsfont_init();
cg6_ras_init(sc);
sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
sc->sc_bg = WS_DEFAULT_BG;
LIST_INIT(&sc->screens);
sc->active = NULL;
sc->currenttype = &cgsix_defaultscreen;
callout_init(&sc->switch_callout);
cgsix_init_screen(sc, &cg6_console_screen, 1, &defattr);
cg6_console_screen.active = 1;
sc->active = &cg6_console_screen;
cgsix_defaultscreen.nrows = ri->ri_rows;
cgsix_defaultscreen.ncols = ri->ri_cols;
cgsix_defaultscreen.textops = &ri->ri_ops;
cgsix_defaultscreen.capabilities = ri->ri_caps;
cg6_setup_palette(sc);
if (isconsole) {
wsdisplay_cnattach(&cgsix_defaultscreen, ri, 0, 0, defattr);
}
aa.console = isconsole;
aa.scrdata = &cgsix_screenlist;
aa.accessops = &cgsix_accessops;
aa.accesscookie = sc;
config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint);
#else
bt_initcmap(&sc->sc_cmap, 256);
cg6_loadcmap(sc, 0, 256);
#endif
}
int
cgsixopen(dev_t dev, int flags, int mode, struct proc *p)
{
int unit = minor(dev);
if (unit >= cgsix_cd.cd_ndevs || cgsix_cd.cd_devs[unit] == NULL)
return ENXIO;
return 0;
}
int
cgsixclose(dev_t dev, int flags, int mode, struct proc *p)
{
struct cgsix_softc *sc = cgsix_cd.cd_devs[minor(dev)];
cg6_reset(sc);
#if NWSDISPLAY > 0
cg6_setup_palette(sc);
#else
/* (re-)initialize the default color map */
bt_initcmap(&sc->sc_cmap, 256);
cg6_loadcmap(sc, 0, 256);
#endif
return 0;
}
int
cgsixioctl(dev_t dev, u_long cmd, caddr_t data, int flags, struct proc *p)
{
struct cgsix_softc *sc = cgsix_cd.cd_devs[minor(dev)];
union cursor_cmap tcm;
uint32_t image[32], mask[32];
u_int count;
int v, error;
#ifdef CGSIX_DEBUG
printf("cgsixioctl(%ld)\n",cmd);
#endif
switch (cmd) {
case FBIOGTYPE:
*(struct fbtype *)data = sc->sc_fb.fb_type;
break;
case FBIOGATTR:
#define fba ((struct fbgattr *)data)
fba->real_type = sc->sc_fb.fb_type.fb_type;
fba->owner = 0; /* XXX ??? */
fba->fbtype = sc->sc_fb.fb_type;
fba->sattr.flags = 0;
fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
fba->sattr.dev_specific[0] = -1;
fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
fba->emu_types[1] = -1;
#undef fba
break;
case FBIOGETCMAP:
#define p ((struct fbcmap *)data)
return (bt_getcmap(p, &sc->sc_cmap, 256, 1));
case FBIOPUTCMAP:
/* copy to software map */
error = bt_putcmap(p, &sc->sc_cmap, 256, 1);
if (error)
return error;
/* now blast them into the chip */
/* XXX should use retrace interrupt */
cg6_loadcmap(sc, p->index, p->count);
#undef p
break;
case FBIOGVIDEO:
*(int *)data = sc->sc_blanked;
break;
case FBIOSVIDEO:
if (*(int *)data)
cg6_unblank(&sc->sc_dev);
else if (!sc->sc_blanked) {
sc->sc_blanked = 1;
sc->sc_thc->thc_misc &= ~THC_MISC_VIDEN;
}
break;
/* these are for both FBIOSCURSOR and FBIOGCURSOR */
#define p ((struct fbcursor *)data)
#define cc (&sc->sc_cursor)
case FBIOGCURSOR:
/* do not quite want everything here... */
p->set = FB_CUR_SETALL; /* close enough, anyway */
p->enable = cc->cc_enable;
p->pos = cc->cc_pos;
p->hot = cc->cc_hot;
p->size = cc->cc_size;
/* begin ugh ... can we lose some of this crap?? */
if (p->image != NULL) {
count = cc->cc_size.y * 32 / NBBY;
error = copyout(cc->cc_bits[1], p->image, count);
if (error)
return error;
error = copyout(cc->cc_bits[0], p->mask, count);
if (error)
return error;
}
if (p->cmap.red != NULL) {
error = bt_getcmap(&p->cmap,
(union bt_cmap *)&cc->cc_color, 2, 1);
if (error)
return error;
} else {
p->cmap.index = 0;
p->cmap.count = 2;
}
/* end ugh */
break;
case FBIOSCURSOR:
/*
* For setcmap and setshape, verify parameters, so that
* we do not get halfway through an update and then crap
* out with the software state screwed up.
*/
v = p->set;
if (v & FB_CUR_SETCMAP) {
/*
* This use of a temporary copy of the cursor
* colormap is not terribly efficient, but these
* copies are small (8 bytes)...
*/
tcm = cc->cc_color;
error = bt_putcmap(&p->cmap, (union bt_cmap *)&tcm, 2,
1);
if (error)
return error;
}
if (v & FB_CUR_SETSHAPE) {
if ((u_int)p->size.x > 32 || (u_int)p->size.y > 32)
return EINVAL;
count = p->size.y * 32 / NBBY;
error = copyin(p->image, image, count);
if (error)
return error;
error = copyin(p->mask, mask, count);
if (error)
return error;
}
/* parameters are OK; do it */
if (v & (FB_CUR_SETCUR | FB_CUR_SETPOS | FB_CUR_SETHOT)) {
if (v & FB_CUR_SETCUR)
cc->cc_enable = p->enable;
if (v & FB_CUR_SETPOS)
cc->cc_pos = p->pos;
if (v & FB_CUR_SETHOT)
cc->cc_hot = p->hot;
cg6_setcursor(sc);
}
if (v & FB_CUR_SETCMAP) {
cc->cc_color = tcm;
cg6_loadomap(sc); /* XXX defer to vertical retrace */
}
if (v & FB_CUR_SETSHAPE) {
cc->cc_size = p->size;
count = p->size.y * 32 / NBBY;
memset(cc->cc_bits, 0, sizeof cc->cc_bits);
memcpy(cc->cc_bits[1], image, count);
memcpy(cc->cc_bits[0], mask, count);
cg6_loadcursor(sc);
}
break;
#undef p
#undef cc
case FBIOGCURPOS:
*(struct fbcurpos *)data = sc->sc_cursor.cc_pos;
break;
case FBIOSCURPOS:
sc->sc_cursor.cc_pos = *(struct fbcurpos *)data;
cg6_setcursor(sc);
break;
case FBIOGCURMAX:
/* max cursor size is 32x32 */
((struct fbcurpos *)data)->x = 32;
((struct fbcurpos *)data)->y = 32;
break;
default:
#ifdef DEBUG
log(LOG_NOTICE, "cgsixioctl(0x%lx) (%s[%d])\n", cmd,
p->p_comm, p->p_pid);
#endif
return ENOTTY;
}
return 0;
}
/*
* Clean up hardware state (e.g., after bootup or after X crashes).
*/
static void
cg6_reset(struct cgsix_softc *sc)
{
volatile struct cg6_tec_xxx *tec;
int fhc;
volatile struct bt_regs *bt;
/* hide the cursor, just in case */
sc->sc_thc->thc_cursxy = (THC_CURSOFF << 16) | THC_CURSOFF;
/* turn off frobs in transform engine (makes X11 work) */
tec = sc->sc_tec;
tec->tec_mv = 0;
tec->tec_clip = 0;
tec->tec_vdc = 0;
/* take care of hardware bugs in old revisions */
if (sc->sc_fhcrev < 5) {
/*
* Keep current resolution; set CPU to 68020, set test
* window (size 1Kx1K), and for rev 1, disable dest cache.
*/
fhc = (*sc->sc_fhc & FHC_RES_MASK) | FHC_CPU_68020 |
FHC_TEST |
(11 << FHC_TESTX_SHIFT) | (11 << FHC_TESTY_SHIFT);
if (sc->sc_fhcrev < 2)
fhc |= FHC_DST_DISABLE;
*sc->sc_fhc = fhc;
}
/* Enable cursor in Brooktree DAC. */
bt = sc->sc_bt;
bt->bt_addr = 0x06 << 24;
bt->bt_ctrl |= 0x03 << 24;
}
static void
cg6_setcursor(struct cgsix_softc *sc)
{
/* we need to subtract the hot-spot value here */
#define COORD(f) (sc->sc_cursor.cc_pos.f - sc->sc_cursor.cc_hot.f)
sc->sc_thc->thc_cursxy = sc->sc_cursor.cc_enable ?
((COORD(x) << 16) | (COORD(y) & 0xffff)) :
(THC_CURSOFF << 16) | THC_CURSOFF;
#undef COORD
}
static void
cg6_loadcursor(struct cgsix_softc *sc)
{
volatile struct cg6_thc *thc;
u_int edgemask, m;
int i;
/*
* Keep the top size.x bits. Here we *throw out* the top
* size.x bits from an all-one-bits word, introducing zeros in
* the top size.x bits, then invert all the bits to get what
* we really wanted as our mask. But this fails if size.x is
* 32---a sparc uses only the low 5 bits of the shift count---
* so we have to special case that.
*/
edgemask = ~0;
if (sc->sc_cursor.cc_size.x < 32)
edgemask = ~(edgemask >> sc->sc_cursor.cc_size.x);
thc = sc->sc_thc;
for (i = 0; i < 32; i++) {
m = sc->sc_cursor.cc_bits[0][i] & edgemask;
thc->thc_cursmask[i] = m;
thc->thc_cursbits[i] = m & sc->sc_cursor.cc_bits[1][i];
}
}
/*
* Load a subset of the current (new) colormap into the color DAC.
*/
static void
cg6_loadcmap(struct cgsix_softc *sc, int start, int ncolors)
{
volatile struct bt_regs *bt;
u_int *ip, i;
int count;
ip = &sc->sc_cmap.cm_chip[BT_D4M3(start)]; /* start/4 * 3 */
count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3;
bt = sc->sc_bt;
bt->bt_addr = BT_D4M4(start) << 24;
while (--count >= 0) {
i = *ip++;
/* hardware that makes one want to pound boards with hammers */
bt->bt_cmap = i;
bt->bt_cmap = i << 8;
bt->bt_cmap = i << 16;
bt->bt_cmap = i << 24;
}
}
/*
* Load the cursor (overlay `foreground' and `background') colors.
*/
static void
cg6_loadomap(struct cgsix_softc *sc)
{
volatile struct bt_regs *bt;
u_int i;
bt = sc->sc_bt;
bt->bt_addr = 0x01 << 24; /* set background color */
i = sc->sc_cursor.cc_color.cm_chip[0];
bt->bt_omap = i; /* R */
bt->bt_omap = i << 8; /* G */
bt->bt_omap = i << 16; /* B */
bt->bt_addr = 0x03 << 24; /* set foreground color */
bt->bt_omap = i << 24; /* R */
i = sc->sc_cursor.cc_color.cm_chip[1];
bt->bt_omap = i; /* G */
bt->bt_omap = i << 8; /* B */
}
static void
cg6_unblank(struct device *dev)
{
struct cgsix_softc *sc = (struct cgsix_softc *)dev;
if (sc->sc_blanked) {
sc->sc_blanked = 0;
sc->sc_thc->thc_misc |= THC_MISC_VIDEN;
}
}
/* XXX the following should be moved to a "user interface" header */
/*
* Base addresses at which users can mmap() the various pieces of a cg6.
* Note that although the Brooktree color registers do not occupy 8K,
* the X server dies if we do not allow it to map 8K there (it just maps
* from 0x70000000 forwards, as a contiguous chunk).
*/
#define CG6_USER_FBC 0x70000000
#define CG6_USER_TEC 0x70001000
#define CG6_USER_BTREGS 0x70002000
#define CG6_USER_FHC 0x70004000
#define CG6_USER_THC 0x70005000
#define CG6_USER_ROM 0x70006000
#define CG6_USER_RAM 0x70016000
#define CG6_USER_DHC 0x80000000
struct mmo {
u_long mo_uaddr; /* user (virtual) address */
u_long mo_size; /* size, or 0 for video ram size */
u_long mo_physoff; /* offset from sc_physadr */
};
/*
* Return the address that would map the given device at the given
* offset, allowing for the given protection, or return -1 for error.
*
* XXX needs testing against `demanding' applications (e.g., aviator)
*/
paddr_t
cgsixmmap(dev_t dev, off_t off, int prot)
{
struct cgsix_softc *sc = cgsix_cd.cd_devs[minor(dev)];
struct mmo *mo;
u_int u, sz;
static struct mmo mmo[] = {
{ CG6_USER_RAM, 0, CGSIX_RAM_OFFSET },
/* do not actually know how big most of these are! */
{ CG6_USER_FBC, 1, CGSIX_FBC_OFFSET },
{ CG6_USER_TEC, 1, CGSIX_TEC_OFFSET },
{ CG6_USER_BTREGS, 8192 /* XXX */, CGSIX_BT_OFFSET },
{ CG6_USER_FHC, 1, CGSIX_FHC_OFFSET },
{ CG6_USER_THC, sizeof(struct cg6_thc), CGSIX_THC_OFFSET },
{ CG6_USER_ROM, 65536, CGSIX_ROM_OFFSET },
{ CG6_USER_DHC, 1, CGSIX_DHC_OFFSET },
};
#define NMMO (sizeof mmo / sizeof *mmo)
if (off & PGOFSET)
panic("cgsixmmap");
/*
* Entries with size 0 map video RAM (i.e., the size in fb data).
*
* Since we work in pages, the fact that the map offset table's
* sizes are sometimes bizarre (e.g., 1) is effectively ignored:
* one byte is as good as one page.
*/
for (mo = mmo; mo < &mmo[NMMO]; mo++) {
if ((u_long)off < mo->mo_uaddr)
continue;
u = off - mo->mo_uaddr;
sz = mo->mo_size ? mo->mo_size :
sc->sc_ramsize/*sc_fb.fb_type.fb_size*/;
if (u < sz) {
return (bus_space_mmap(sc->sc_bustag,
sc->sc_paddr, u+mo->mo_physoff,
prot, BUS_SPACE_MAP_LINEAR));
}
}
#ifdef DEBUG
{
struct proc *p = curlwp->l_proc; /* XXX */
log(LOG_NOTICE, "cgsixmmap(0x%llx) (%s[%d])\n",
(long long)off, p->p_comm, p->p_pid);
}
#endif
return -1; /* not a user-map offset */
}
#if NWSDISPLAY > 0
static void
cg6_setup_palette(struct cgsix_softc *sc)
{
int i, j;
j = 0;
for (i = 0; i < 256; i++) {
sc->sc_cmap.cm_map[i][0] = rasops_cmap[j];
j++;
sc->sc_cmap.cm_map[i][1] = rasops_cmap[j];
j++;
sc->sc_cmap.cm_map[i][2] = rasops_cmap[j];
j++;
}
cg6_loadcmap(sc, 0, 256);
}
int
cgsix_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
{
/* we'll probably need to add more stuff here */
struct cgsix_softc *sc = v;
struct wsdisplay_fbinfo *wdf;
struct rasops_info *ri = &sc->sc_fb.fb_rinfo;
struct cg6_screen *ms = sc->active;
#ifdef CGSIX_DEBUG
printf("cgsix_ioctl(%ld)\n",cmd);
#endif
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_SUNTCX;
return 0;
case WSDISPLAYIO_GINFO:
wdf = (void *)data;
wdf->height = ri->ri_height;
wdf->width = ri->ri_width;
wdf->depth = ri->ri_depth;
wdf->cmsize = 256;
return 0;
case WSDISPLAYIO_GETCMAP:
return cgsix_getcmap(sc,
(struct wsdisplay_cmap *)data);
case WSDISPLAYIO_PUTCMAP:
return cgsix_putcmap(sc,
(struct wsdisplay_cmap *)data);
case WSDISPLAYIO_SMODE:
{
int new_mode = *(int*)data;
if (new_mode != sc->sc_mode)
{
sc->sc_mode = new_mode;
if(new_mode == WSDISPLAYIO_MODE_EMUL)
{
cg6_reset(sc);
cg6_ras_init(sc);
/* restore the screen content */
cgsix_restore_screen(ms,
ms->type, ms->chars);
/*
* because X likes to bork up
* our colour map
*/
cg6_setup_palette(sc); /* and draw the cursor */
cgsix_cursor(ms, ms->cursoron,
ms->cursorrow,
ms->cursorcol);
}
}
}
}
return EPASSTHROUGH;
}
paddr_t
cgsix_mmap(void *v, off_t offset, int prot)
{
struct cgsix_softc *sc = v;
if(offset<sc->sc_ramsize) {
return bus_space_mmap(sc->sc_bustag, sc->sc_paddr,
CGSIX_RAM_OFFSET+offset, prot, BUS_SPACE_MAP_LINEAR);
}
/* I'm not at all sure this is the right thing to do */
return cgsixmmap(0, offset, prot); /* assume minor dev 0 for now */
}
int
cgsix_putcmap(struct cgsix_softc *sc, struct wsdisplay_cmap *cm)
{
u_int index = cm->index;
u_int count = cm->count;
int error,i;
if (index >= 256 || count > 256 || index + count > 256)
return EINVAL;
for (i = 0; i < count; i++)
{
error = copyin(&cm->red[i],
&sc->sc_cmap.cm_map[index + i][0], 1);
if (error)
return error;
error = copyin(&cm->green[i],
&sc->sc_cmap.cm_map[index + i][1],
1);
if (error)
return error;
error = copyin(&cm->blue[i],
&sc->sc_cmap.cm_map[index + i][2], 1);
if (error)
return error;
}
cg6_loadcmap(sc, index, count);
return 0;
}
int
cgsix_getcmap(struct cgsix_softc *sc, struct wsdisplay_cmap *cm)
{
u_int index = cm->index;
u_int count = cm->count;
int error,i;
if (index >= 256 || count > 256 || index + count > 256)
return EINVAL;
for (i = 0; i < count; i++)
{
error = copyout(&sc->sc_cmap.cm_map[index + i][0],
&cm->red[i], 1);
if (error)
return error;
error = copyout(&sc->sc_cmap.cm_map[index + i][1],
&cm->green[i], 1);
if (error)
return error;
error = copyout(&sc->sc_cmap.cm_map[index + i][2],
&cm->blue[i], 1);
if (error)
return error;
}
return 0;
}
void
cgsix_init_screen(struct cgsix_softc *sc, struct cg6_screen *scr,
int existing, long *defattr)
{
struct rasops_info *ri = &scr->ri;
int cnt;
scr->sc = sc;
/*scr->type = type;*/
scr->cursorcol = 0;
scr->cursorrow = 0;
scr->cursordrawn = 0;
ri->ri_depth = 8;
ri->ri_width = sc->sc_width;
ri->ri_height = sc->sc_height;
ri->ri_stride = sc->sc_stride;
ri->ri_flg = RI_CENTER;
ri->ri_bits = sc->sc_fb.fb_pixels;
rasops_init(ri, sc->sc_height/8, sc->sc_width/8);
ri->ri_caps=WSSCREEN_WSCOLORS;
rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
sc->sc_width / ri->ri_font->fontwidth);
ri->ri_ops.allocattr(ri, 0, 0, 0, defattr);
cnt = ri->ri_rows * ri->ri_cols;
/*
* we allocate both chars and attributes in one chunk, attributes first
* because they have the (potentially) bigger alignment
*/
scr->attrs = (long *)malloc(cnt * (sizeof(long) + sizeof(uint16_t)),
M_DEVBUF, M_WAITOK);
scr->chars = (uint16_t *)&scr->attrs[cnt];
/* enable acceleration */
ri->ri_hw = scr;
ri->ri_ops.copyrows = cg6_ras_copyrows;
ri->ri_ops.copycols = cg6_ras_copycols;
ri->ri_ops.eraserows = cg6_ras_eraserows;
ri->ri_ops.erasecols = cg6_ras_erasecols;
ri->ri_ops.cursor = cgsix_cursor;
ri->ri_ops.putchar = cgsix_putchar;
if (existing) {
scr->active = 1;
} else {
scr->active = 0;
}
cg6_ras_eraserows(&scr->ri, 0, ri->ri_rows, *defattr);
LIST_INSERT_HEAD(&sc->screens, scr, next);
}
int
cgsix_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
int *curxp, int *curyp, long *defattrp)
{
struct cgsix_softc *sc = v;
struct cg6_screen *scr;
scr = malloc(sizeof(struct cg6_screen), M_DEVBUF, M_WAITOK|M_ZERO);
cgsix_init_screen(sc, scr, 0, defattrp);
if (sc->active == NULL) {
scr->active = 1;
sc->active = scr;
sc->currenttype = type;
}
*cookiep = scr;
*curxp = scr->cursorcol;
*curyp = scr->cursorrow;
return 0;
}
void
cgsix_free_screen(void *v, void *cookie)
{
struct cgsix_softc *sc = v;
struct cg6_screen *scr = cookie;
LIST_REMOVE(scr, next);
if (scr != &cg6_console_screen) {
free(scr->attrs, M_DEVBUF);
free(scr, M_DEVBUF);
} else
panic("cgsix_free_screen: console");
if (sc->active == scr)
sc->active = 0;
}
int
cgsix_show_screen(void *v, void *cookie, int waitok,
void (*cb)(void *, int, int), void *cbarg)
{
struct cgsix_softc *sc = v;
struct cg6_screen *scr, *oldscr;
scr = cookie;
oldscr = sc->active;
if (scr == oldscr)
return 0;
sc->wanted = scr;
sc->switchcb = cb;
sc->switchcbarg = cbarg;
if (cb) {
callout_reset(&sc->switch_callout, 0,
(void(*)(void *))cgsix_switch_screen, sc);
return EAGAIN;
}
cgsix_switch_screen(sc);
return 0;
}
void
cgsix_switch_screen(struct cgsix_softc *sc)
{
struct cg6_screen *scr, *oldscr;
scr = sc->wanted;
if (!scr) {
printf("cgsix_switch_screen: disappeared\n");
(*sc->switchcb)(sc->switchcbarg, EIO, 0);
return;
}
oldscr = sc->active; /* can be NULL! */
#ifdef DIAGNOSTIC
if (oldscr) {
if (!oldscr->active)
panic("cgsix_switch_screen: not active");
}
#endif
if (scr == oldscr)
return;
#ifdef DIAGNOSTIC
if (scr->active)
panic("cgsix_switch_screen: active");
#endif
if (oldscr)
oldscr->active = 0;
#ifdef notyet
if (sc->currenttype != type) {
cgsix_set_screentype(sc, type);
sc->currenttype = type;
}
#endif
/* Clear the entire screen. */
scr->active = 1;
cgsix_restore_screen(scr, &cgsix_defaultscreen, scr->chars);
sc->active = scr;
scr->ri.ri_ops.cursor(scr, scr->cursoron, scr->cursorrow,
scr->cursorcol);
sc->wanted = 0;
if (sc->switchcb)
(*sc->switchcb)(sc->switchcbarg, 0, 0);
}
void
cgsix_restore_screen(struct cg6_screen *scr,
const struct wsscreen_descr *type, u_int16_t *mem)
{
int i, j, offset = 0;
uint16_t *charptr = scr->chars;
long *attrptr = scr->attrs;
cgsix_clearscreen(scr->sc);
for (i = 0; i < scr->ri.ri_rows; i++) {
for (j = 0; j < scr->ri.ri_cols; j++) {
cgsix_putchar(scr, i, j, charptr[offset],
attrptr[offset]);
offset++;
}
}
scr->cursordrawn = 0;
}
void
cgsix_rectfill(struct cgsix_softc *sc, int xs, int ys, int wi, int he,
uint32_t col)
{
volatile struct cg6_fbc *fbc = sc->sc_fbc;
CG6_DRAIN(fbc);
fbc->fbc_clip = 0;
fbc->fbc_s = 0;
fbc->fbc_offx = 0;
fbc->fbc_offy = 0;
fbc->fbc_clipminx = 0;
fbc->fbc_clipminy = 0;
fbc->fbc_clipmaxx = sc->sc_width - 1;
fbc->fbc_clipmaxy = sc->sc_height - 1;
fbc->fbc_alu = CG6_ALU_FILL;
fbc->fbc_fg = col;
fbc->fbc_arecty = ys;
fbc->fbc_arectx = xs;
fbc->fbc_arecty = ys + he - 1;
fbc->fbc_arectx = xs + wi - 1;
CG6_DRAW_WAIT(fbc);
}
void
cgsix_setup_mono(struct cgsix_softc *sc, int x, int y, int wi, int he,
uint32_t fg, uint32_t bg)
{
volatile struct cg6_fbc *fbc=sc->sc_fbc;
CG6_DRAIN(fbc);
fbc->fbc_x0 = x;
fbc->fbc_x1 =x + wi - 1;
fbc->fbc_y0 = y;
fbc->fbc_incx = 0;
fbc->fbc_incy = 1;
fbc->fbc_fg = fg;
fbc->fbc_bg = bg;
fbc->fbc_mode = 0x00140000; /* nosrc, color1 */
fbc->fbc_alu = 0x0800fc30; /* colour expansion, solid bg */
sc->sc_mono_width = wi;
/* now feed the data into the chip */
}
void
cgsix_feed_line(struct cgsix_softc *sc, int count, uint8_t *data)
{
int i;
uint32_t latch, res = 0, shift;
volatile struct cg6_fbc *fbc = sc->sc_fbc;
if (sc->sc_mono_width > 32) {
/* ARGH! */
} else
{
shift = 24;
for (i = 0; i < count; i++) {
latch = data[i];
res |= latch << shift;
shift -= 8;
}
fbc->fbc_font = res;
}
}
void
cgsix_putchar(void *cookie, int row, int col, u_int c, long attr)
{
struct rasops_info *ri=cookie;
struct cg6_screen *scr=ri->ri_hw;
struct cgsix_softc *sc=scr->sc;
int pos;
if ((row >= 0) && (row < ri->ri_rows) && (col >= 0) &&
(col < ri->ri_cols)) {
pos = col + row * ri->ri_cols;
scr->attrs[pos] = attr;
scr->chars[pos] = c;
if ((scr->active) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
/*cgsix_sync(sc);*/
int fg, bg, uc, i;
uint8_t *data;
int x, y, wi, he;
volatile struct cg6_fbc *fbc = sc->sc_fbc;
wi = ri->ri_font->fontwidth;
he = ri->ri_font->fontheight;
if (!CHAR_IN_FONT(c, ri->ri_font))
return;
bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xff];
fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xff];
x = ri->ri_xorigin + col * wi;
y = ri->ri_yorigin + row * he;
if (c == 0x20) {
cgsix_rectfill(sc, x, y, wi, he, bg);
} else {
uc = c-ri->ri_font->firstchar;
data = (uint8_t *)ri->ri_font->data + uc *
ri->ri_fontscale;
cgsix_setup_mono(sc, x, y, wi, 1, fg, bg);
for (i = 0; i < he; i++) {
cgsix_feed_line(sc, ri->ri_font->stride,
data);
data += ri->ri_font->stride;
}
/* put the chip back to normal */
fbc->fbc_incy = 0;
/* nosrc, color8 */
fbc->fbc_mode = 0x00120000;
fbc->fbc_mode &= ~CG6_MODE_MASK;
fbc->fbc_mode |= CG6_MODE;
}
}
}
}
void
cgsix_cursor(void *cookie, int on, int row, int col)
{
struct rasops_info *ri=cookie;
struct cg6_screen *scr=ri->ri_hw;
struct cgsix_softc *sc=scr->sc;
int x, y, wi, he;
wi = ri->ri_font->fontwidth;
he = ri->ri_font->fontheight;
if((scr->active) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
x = scr->cursorcol * wi + ri->ri_xorigin;
y = scr->cursorrow * he + ri->ri_yorigin;
if(scr->cursordrawn) {
cg6_invert(sc, x, y, wi, he);
scr->cursordrawn = 0;
}
scr->cursorrow = row;
scr->cursorcol = col;
if((scr->cursoron = on) != 0)
{
x = scr->cursorcol * wi + ri->ri_xorigin;
y = scr->cursorrow * he + ri->ri_yorigin;
cg6_invert(sc, x, y, wi, he);
scr->cursordrawn = 1;
}
} else {
scr->cursoron = on;
scr->cursorrow = row;
scr->cursorcol = col;
scr->cursordrawn = 0;
}
}
void
cgsix_clearscreen(struct cgsix_softc *sc)
{
struct rasops_info *ri=&cg6_console_screen.ri;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
volatile struct cg6_fbc *fbc = sc->sc_fbc;
CG6_DRAIN(fbc);
fbc->fbc_clip = 0;
fbc->fbc_s = 0;
fbc->fbc_offx = 0;
fbc->fbc_offy = 0;
fbc->fbc_clipminx = 0;
fbc->fbc_clipminy = 0;
fbc->fbc_clipmaxx = ri->ri_width - 1;
fbc->fbc_clipmaxy = ri->ri_height - 1;
fbc->fbc_alu = CG6_ALU_FILL;
fbc->fbc_fg = ri->ri_devcmap[sc->sc_bg];
fbc->fbc_arectx = 0;
fbc->fbc_arecty = 0;
fbc->fbc_arectx = ri->ri_width - 1;
fbc->fbc_arecty = ri->ri_height - 1;
CG6_DRAW_WAIT(fbc);
}
}
#endif /* NWSDISPLAY > 0 */
#if (NWSDISPLAY > 0) || defined(RASTERCONSOLE)
void
cg6_invert(struct cgsix_softc *sc, int x, int y, int wi, int he)
{
volatile struct cg6_fbc *fbc = sc->sc_fbc;
struct rasops_info *ri = &cg6_console_screen.ri;
CG6_DRAIN(fbc);
fbc->fbc_clip = 0;
fbc->fbc_s = 0;
fbc->fbc_offx = 0;
fbc->fbc_offy = 0;
fbc->fbc_clipminx = 0;
fbc->fbc_clipminy = 0;
fbc->fbc_clipmaxx = ri->ri_width - 1;
fbc->fbc_clipmaxy = ri->ri_height - 1;
fbc->fbc_alu = CG6_ALU_FLIP;
fbc->fbc_arecty = y;
fbc->fbc_arectx = x;
fbc->fbc_arecty = y + he - 1;
fbc->fbc_arectx = x + wi - 1;
CG6_DRAW_WAIT(fbc);
}
#endif
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