Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
2100183aff
NetBSD/sys/arch/arm/iomd/vidcvideo.c
reinoud 9fc5cf5824 Fix the mmap'ing of the screen memory. The way it was implemented 
completely sucked... I wonder how it was even working (....)

Thanks to Jason for pointing out the problem.
2002-04-03 16:03:50 +00:00

967 lines
25 KiB
C
Raw Blame History

/* $NetBSD: vidcvideo.c,v 1.11 2002/04/03 16:03:50 reinoud Exp $ */
/*
* Copyright (c) 2001 Reinoud Zandijk
* Copyright (c) 1998, 1999 Tohru Nishimura. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Tohru Nishimura
* and Reinoud Zandijk for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* 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 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.
*
* Created vidcvideo.c from /dev/tc/cfb.c to fit the Acorn/ARM VIDC1 and VIDC20 chips
*
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: vidcvideo.c,v 1.11 2002/04/03 16:03:50 reinoud Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/buf.h>
#include <sys/ioctl.h>
#include <arm/mainbus/mainbus.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/rasops/rasops.h>
#include <dev/wsfont/wsfont.h>
#include <uvm/uvm_extern.h>
#include <arm/arm32/pmap.h>
#include <arm/cpufunc.h>
#include <machine/intr.h>
/* for vidc_mode ... needs to be MI indepenent one day */
#include <arm/iomd/vidc.h>
#include <arm/iomd/vidc20config.h>
#include <arm/iomd/vidcvideo.h>
#include <machine/bootconfig.h>
/* FOR DEBUG */
extern videomemory_t videomemory;
struct hwcmap256 {
#define CMAP_SIZE 256 /* 256 R/G/B entries */
u_int8_t r[CMAP_SIZE];
u_int8_t g[CMAP_SIZE];
u_int8_t b[CMAP_SIZE];
};
/* XXX for CURSOR_MAX_WIDTH = 32 */
struct hwcursor32 {
struct wsdisplay_curpos cc_pos;
struct wsdisplay_curpos cc_hot;
struct wsdisplay_curpos cc_size;
struct wsdisplay_curpos cc_magic;
u_int8_t cc_color[6]; /* how many? */
u_int32_t cc_image[(CURSOR_MAX_WIDTH/4) * CURSOR_MAX_HEIGHT];
u_int32_t cc_mask[(CURSOR_MAX_WIDTH/4) * CURSOR_MAX_HEIGHT];
};
struct fb_devconfig {
vaddr_t dc_vaddr; /* memory space virtual base address */
paddr_t dc_paddr; /* memory space physical base address */
vsize_t dc_size; /* size of slot memory */
int dc_wid; /* width of frame buffer */
int dc_ht; /* height of frame buffer */
int dc_log2_depth; /* log2 of bits per pixel */
int dc_depth; /* depth, bits per pixel */
int dc_rowbytes; /* bytes in a FB scan line */
vaddr_t dc_videobase; /* base of flat frame buffer */
int dc_blanked; /* currently has video disabled */
void *dc_hwscroll_cookie; /* cookie for hardware scroll */
int dc_curenb; /* is cursor sprite enabled ? */
int dc_changed; /* need update of hardware */
int dc_writeback_delay; /* Screenarea write back vsync counter */
#define WSDISPLAY_CMAP_DOLUT 0x20
#define WSDISPLAY_VIDEO_ONOFF 0x40
#define WSDISPLAY_WB_COUNTER 0x80
struct hwcmap256 dc_cmap;/* software copy of colormap */
struct hwcursor32 dc_cursor;/* software copy of cursor */
struct vidc_mode mode_info;
struct rasops_info rinfo;
struct wsdisplay_emulops orig_ri_ops; /* Rasops functions for deligation */
};
struct vidcvideo_softc {
struct device sc_dev;
struct fb_devconfig *sc_dc; /* device configuration */
int nscreens; /* number of screens configured */
};
/* XXX has to go XXX */
#define CX_MAGIC_X 220
#define CX_MAGIC_Y 35
#define CX_FB_OFFSET 0x000000
#define CX_FB_SIZE 0x100000
#define CX_BT459_OFFSET 0x200000
#define CX_OFFSET_IREQ 0x300000 /* Interrupt req. control */
/* XXX till here XXX */
/* Function prototypes for glue */
static int vidcvideo_match __P((struct device *, struct cfdata *, void *));
static void vidcvideo_attach __P((struct device *, struct device *, void *));
/* config glue */
const struct cfattach vidcvideo_ca = {
sizeof(struct vidcvideo_softc), vidcvideo_match, vidcvideo_attach,
};
static struct fb_devconfig vidcvideo_console_dc;
static int vidcvideo_is_console;
static struct wsscreen_descr vidcvideo_stdscreen = {
"std", 0, 0,
0, /* textops */
0, 0,
WSSCREEN_REVERSE
};
static const struct wsscreen_descr *_vidcvideo_scrlist[] = {
&vidcvideo_stdscreen,
};
static const struct wsscreen_list vidcvideo_screenlist = {
sizeof(_vidcvideo_scrlist) / sizeof(struct wsscreen_descr *), _vidcvideo_scrlist
};
static int vidcvideoioctl __P((void *, u_long, caddr_t, int, struct proc *));
static paddr_t vidcvideommap __P((void *, off_t, int));
static int vidcvideo_alloc_screen __P((void *, const struct wsscreen_descr *,
void **, int *, int *, long *));
static void vidcvideo_free_screen __P((void *, void *));
static int vidcvideo_show_screen __P((void *, void *, int,
void (*) (void *, int, int), void *));
static const struct wsdisplay_accessops vidcvideo_accessops = {
vidcvideoioctl,
vidcvideommap,
vidcvideo_alloc_screen,
vidcvideo_free_screen,
vidcvideo_show_screen,
0 /* load_font */
};
/* Function prototypes */
int vidcvideo_cnattach __P((vaddr_t));
static void vidcvideo_colourmap_and_cursor_init __P((struct fb_devconfig *));
static int get_cmap __P((struct vidcvideo_softc *, struct wsdisplay_cmap *));
static int set_cmap __P((struct vidcvideo_softc *, struct wsdisplay_cmap *));
static int set_cursor __P((struct vidcvideo_softc *, struct wsdisplay_cursor *));
static int get_cursor __P((struct vidcvideo_softc *, struct wsdisplay_cursor *));
static void set_curpos __P((struct vidcvideo_softc *, struct wsdisplay_curpos *));
static void vidcvideo_getdevconfig __P((vaddr_t, struct fb_devconfig *));
static int vidcvideointr __P((void *));
static void vidcvideo_config_wscons __P((struct fb_devconfig *));
/* Acceleration function prototypes */
static void vv_copyrows __P((void *, int, int, int));
static void vv_eraserows __P((void *, int, int, long));
static void vv_putchar __P((void *c, int row, int col, u_int uc, long attr));
static int
vidcvideo_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
/* Can't probe AFAIK ; how ? */
return (1);
}
static void
vidcvideo_getdevconfig(dense_addr, dc)
vaddr_t dense_addr;
struct fb_devconfig *dc;
{
dc->dc_vaddr = dense_addr;
(void) pmap_extract(pmap_kernel(), dc->dc_vaddr, &(dc->dc_paddr));
vidcvideo_getmode(&dc->mode_info);
dc->dc_wid = dc->mode_info.hder;
dc->dc_ht = dc->mode_info.vder;
dc->dc_log2_depth = dc->mode_info.log2_bpp;
dc->dc_depth = 1 << dc->dc_log2_depth;
dc->dc_videobase = dc->dc_vaddr;
dc->dc_blanked = 0;
/* this should/could be done somewhat more elegant! */
switch (dc->dc_depth) {
case 1:
dc->dc_rowbytes = dc->dc_wid / 8;
break;
case 2:
dc->dc_rowbytes = dc->dc_wid / 4;
break;
case 4:
dc->dc_rowbytes = dc->dc_wid / 2;
break;
case 8:
dc->dc_rowbytes = dc->dc_wid;
break;
case 16:
dc->dc_rowbytes = dc->dc_wid * 2;
break;
case 32:
dc->dc_rowbytes = dc->dc_wid * 4;
break;
default:
printf("Unknown colour depth %d ... what to do ?", dc->dc_depth);
break;
};
/* euhm... correct ? i.e. not complete VIDC memory */
dc->dc_size = dc->mode_info.vder * dc->dc_rowbytes;
/* initialize colormap and cursor resource */
vidcvideo_colourmap_and_cursor_init(dc);
dc->rinfo.ri_flg = 0; /* RI_CENTER; */
dc->rinfo.ri_depth = dc->dc_depth;
dc->rinfo.ri_bits = (void *) dc->dc_videobase;
dc->rinfo.ri_width = dc->dc_wid;
dc->rinfo.ri_height = dc->dc_ht;
dc->rinfo.ri_stride = dc->dc_rowbytes;
dc->rinfo.ri_hw = dc; /* link back */
/* intitialise miscelanious */
dc->dc_writeback_delay = 0;
}
static void
vidcvideo_config_wscons(dc)
struct fb_devconfig *dc;
{
int i, cookie, font_not_locked;
/* clear the screen ; why not a memset ? - it was this way so keep it for now */
for (i = 0; i < dc->dc_ht * dc->dc_rowbytes; i += sizeof(u_int32_t))
*(u_int32_t *)(dc->dc_videobase + i) = 0x0;
wsfont_init();
/* prefer 8 pixel wide font */
cookie = wsfont_find(NULL, 8, 0, 0, WSDISPLAY_FONTORDER_L2R,
WSDISPLAY_FONTORDER_L2R);
if (cookie <= 0)
cookie = wsfont_find(NULL, 0, 0, 0, WSDISPLAY_FONTORDER_L2R,
WSDISPLAY_FONTORDER_L2R);
if (cookie < 0) {
/* Can I even print here ? */
printf("Font table empty! exiting\n");
return;
};
font_not_locked = wsfont_lock(cookie, &dc->rinfo.ri_font);
dc->rinfo.ri_wsfcookie = cookie;
rasops_init(&dc->rinfo,
dc->rinfo.ri_height / dc->rinfo.ri_font->fontheight,
dc->rinfo.ri_width / dc->rinfo.ri_font->fontwidth
);
/*
* Provide a hook for the acceleration functions and make a copy of the
* original rasops functions for passing on calls
*/
dc->rinfo.ri_hw = dc;
memcpy(&(dc->orig_ri_ops), &(dc->rinfo.ri_ops), sizeof(struct wsdisplay_emulops));
/* add our accelerated functions */
dc->rinfo.ri_ops.eraserows = vv_eraserows;
dc->rinfo.ri_ops.copyrows = vv_copyrows;
/* add the extra activity measuring functions; they just delegate on */
dc->rinfo.ri_ops.putchar = vv_putchar;
/* XXX shouldn't be global */
vidcvideo_stdscreen.nrows = dc->rinfo.ri_rows;
vidcvideo_stdscreen.ncols = dc->rinfo.ri_cols;
vidcvideo_stdscreen.textops = &dc->rinfo.ri_ops;
vidcvideo_stdscreen.capabilities = dc->rinfo.ri_caps;
if (font_not_locked) {
printf(" warning ... couldn't lock font! ");
};
}
static void
vidcvideo_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct vidcvideo_softc *sc = (struct vidcvideo_softc *)self;
struct fb_devconfig *dc;
struct wsemuldisplaydev_attach_args waa;
struct hwcmap256 *cm;
const u_int8_t *p;
long defattr;
int index;
vidcvideo_init();
if (sc->nscreens == 0) {
sc->sc_dc = &vidcvideo_console_dc;
if (!vidcvideo_is_console) {
printf(" : non console (no kbd yet) ");
vidcvideo_getdevconfig(videomemory.vidm_vbase, sc->sc_dc);
vidcvideo_config_wscons(sc->sc_dc);
(*sc->sc_dc->rinfo.ri_ops.alloc_attr)(&sc->sc_dc->rinfo, 0, 0, 0, &defattr);
};
sc->nscreens = 1;
} else {
printf(": allready attached ... can't cope with this\n");
return;
};
dc = sc->sc_dc;
vidcvideo_printdetails();
printf(": using %d x %d, %dbpp\n", dc->dc_wid, dc->dc_ht,
dc->dc_depth);
/* initialise rasops */
cm = &dc->dc_cmap;
p = rasops_cmap;
for (index = 0; index < CMAP_SIZE; index++, p += 3) {
cm->r[index] = p[0];
cm->g[index] = p[1];
cm->b[index] = p[2];
}
/* what does these do ? */
dc->dc_cursor.cc_magic.x = CX_MAGIC_X;
dc->dc_cursor.cc_magic.y = CX_MAGIC_Y;
/* set up interrupt flags */
dc->dc_changed |= WSDISPLAY_CMAP_DOLUT;
/*
* Set up a link in the rasops structure to our device config
* for acceleration stuff
*/
dc->rinfo.ri_hw = sc->sc_dc;
/* Establish an interrupt handler, and clear any pending interrupts */
intr_claim(IRQ_FLYBACK, IPL_TTY, "vblank", vidcvideointr, dc);
waa.console = (vidcvideo_is_console ? 1 : 0);
waa.scrdata = &vidcvideo_screenlist;
waa.accessops = &vidcvideo_accessops;
waa.accesscookie = sc;
config_found(self, &waa, wsemuldisplaydevprint);
}
static int
vidcvideoioctl(v, cmd, data, flag, p)
void *v;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
struct vidcvideo_softc *sc = v;
struct fb_devconfig *dc = sc->sc_dc;
int state;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_VIDC;
return (0);
case WSDISPLAYIO_GINFO:
#define wsd_fbip ((struct wsdisplay_fbinfo *)data)
wsd_fbip->height = dc->dc_ht;
wsd_fbip->width = dc->dc_wid;
wsd_fbip->depth = dc->dc_depth;
wsd_fbip->cmsize = CMAP_SIZE;
#undef fbt
return (0);
case WSDISPLAYIO_GETCMAP:
return get_cmap(sc, (struct wsdisplay_cmap *)data);
case WSDISPLAYIO_PUTCMAP:
return set_cmap(sc, (struct wsdisplay_cmap *)data);
case WSDISPLAYIO_SVIDEO:
state = *(int *)data;
dc->dc_blanked = (state == WSDISPLAYIO_VIDEO_OFF);
dc->dc_changed |= WSDISPLAY_VIDEO_ONOFF;
/* done on video blank */
return (0);
case WSDISPLAYIO_GVIDEO:
*(u_int *)data = dc->dc_blanked ?
WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON;
return (0);
case WSDISPLAYIO_GCURPOS:
*(struct wsdisplay_curpos *)data = dc->dc_cursor.cc_pos;
return (0);
case WSDISPLAYIO_SCURPOS:
set_curpos(sc, (struct wsdisplay_curpos *)data);
dc->dc_changed |= WSDISPLAY_CURSOR_DOPOS;
return (0);
case WSDISPLAYIO_GCURMAX:
((struct wsdisplay_curpos *)data)->x = CURSOR_MAX_WIDTH;
((struct wsdisplay_curpos *)data)->y = CURSOR_MAX_HEIGHT;
return (0);
case WSDISPLAYIO_GCURSOR:
return get_cursor(sc, (struct wsdisplay_cursor *)data);
case WSDISPLAYIO_SCURSOR:
return set_cursor(sc, (struct wsdisplay_cursor *)data);
case WSDISPLAYIO_SMODE:
state = *(int *)data;
if (state == WSDISPLAYIO_MODE_MAPPED) {
dc->dc_hwscroll_cookie = vidcvideo_hwscroll_reset();
};
if (state == WSDISPLAYIO_MODE_EMUL) {
vidcvideo_hwscroll_back(dc->dc_hwscroll_cookie);
};
vidcvideo_progr_scroll();
return (0);
}
return EPASSTHROUGH;
}
paddr_t
vidcvideommap(v, offset, prot)
void *v;
off_t offset;
int prot;
{
struct vidcvideo_softc *sc = v;
if (offset >= sc->sc_dc->dc_size || offset < 0)
return (-1);
return arm_btop(sc->sc_dc->dc_paddr + offset);
}
static int
vidcvideo_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
void *v;
const struct wsscreen_descr *type;
void **cookiep;
int *curxp, *curyp;
long *attrp;
{
struct vidcvideo_softc *sc = v;
struct fb_devconfig *dc = sc->sc_dc;
long defattr;
/*
* One and just only one for now :( ... if the vidcconsole is not the
* console then this makes one wsconsole screen free for use !
*/
if ((sc->nscreens > 1) || vidcvideo_is_console)
return (ENOMEM);
/* Add the screen to wscons to control */
*cookiep = &dc->rinfo;
*curxp = 0;
*curyp = 0;
vidcvideo_getdevconfig(videomemory.vidm_vbase, dc);
vidcvideo_config_wscons(dc);
(*dc->rinfo.ri_ops.alloc_attr)(&dc->rinfo, 0, 0, 0, &defattr);
*attrp = defattr;
sc->nscreens++;
return (0);
}
static void
vidcvideo_free_screen(v, cookie)
void *v;
void *cookie;
{
struct vidcvideo_softc *sc = v;
if (sc->sc_dc == &vidcvideo_console_dc)
panic("vidcvideo_free_screen: console");
sc->nscreens--;
}
static int
vidcvideo_show_screen(v, cookie, waitok, cb, cbarg)
void *v;
void *cookie;
int waitok;
void (*cb) __P((void *, int, int));
void *cbarg;
{
return (0);
}
/* EXPORT */ int
vidcvideo_cnattach(addr)
vaddr_t addr;
{
struct fb_devconfig *dcp = &vidcvideo_console_dc;
long defattr;
vidcvideo_init();
vidcvideo_getdevconfig(addr, dcp);
vidcvideo_config_wscons(dcp);
(*dcp->rinfo.ri_ops.alloc_attr)(&dcp->rinfo, 0, 0, 0, &defattr);
wsdisplay_cnattach(&vidcvideo_stdscreen, &dcp->rinfo, 0, 0, defattr);
vidcvideo_is_console = 1;
return(0);
}
static int
vidcvideointr(arg)
void *arg;
{
struct fb_devconfig *dc = arg;
int v, cleared = 0;
v = dc->dc_changed;
if (v == 0)
return (1);
if (v & WSDISPLAY_WB_COUNTER) {
dc->dc_writeback_delay--;
if (dc->dc_writeback_delay == 0) {
cpu_dcache_wb_range(dc->dc_vaddr, dc->dc_size);
cleared |= WSDISPLAY_WB_COUNTER;
};
}
if (v & WSDISPLAY_CMAP_DOLUT) {
struct hwcmap256 *cm = &dc->dc_cmap;
int index;
if (dc->dc_depth == 4) {
/* palette for 4 bpp is different from 8bpp */
vidcvideo_write(VIDC_PALREG, 0x00000000);
for (index=0; index < (1 << dc->dc_depth); index++)
vidcvideo_write(VIDC_PALETTE,
VIDC_COL(cm->r[index],
cm->g[index],
cm->b[index]));
;
};
if (dc->dc_depth == 8) {
/* dunno what to do in more than 8bpp */
/* palettes only make sense in 8bpp and less modes on VIDC */
vidcvideo_write(VIDC_PALREG, 0x00000000);
for (index = 0; index < CMAP_SIZE; index++) {
vidcvideo_write(VIDC_PALETTE,
VIDC_COL(cm->r[index], cm->g[index], cm->b[index])
);
};
};
cleared |= WSDISPLAY_CMAP_DOLUT;
}
if (v & WSDISPLAY_VIDEO_ONOFF) {
vidcvideo_blank(dc->dc_blanked);
cleared |= WSDISPLAY_VIDEO_ONOFF;
};
if (v & (WSDISPLAY_CURSOR_DOPOS | WSDISPLAY_CURSOR_DOHOT)) {
int x, y;
x = dc->dc_cursor.cc_pos.x - dc->dc_cursor.cc_hot.x;
y = dc->dc_cursor.cc_pos.y - dc->dc_cursor.cc_hot.y;
vidcvideo_updatecursor(x, y);
cleared |= WSDISPLAY_CURSOR_DOPOS | WSDISPLAY_CURSOR_DOHOT;
};
if (v & WSDISPLAY_CURSOR_DOCUR) {
vidcvideo_enablecursor(dc->dc_curenb);
cleared |= WSDISPLAY_CURSOR_DOCUR;
};
#if 0 /* XXX snip XXX */
/* XXX kept here as an archive for now XXX */
vdac = vidcvideobase + CX_BT459_OFFSET;
v = sc->sc_changed;
if (v & WSDISPLAY_CURSOR_DOCUR) {
SELECT(vdac, BT459_IREG_CCR);
REG(vdac, bt_reg) = (sc->sc_curenb) ? 0xc0 : 0x00;
}
if (v & (WSDISPLAY_CURSOR_DOPOS | WSDISPLAY_CURSOR_DOHOT)) {
int x, y;
x = sc->sc_cursor.cc_pos.x - sc->sc_cursor.cc_hot.x;
y = sc->sc_cursor.cc_pos.y - sc->sc_cursor.cc_hot.y;
x += sc->sc_cursor.cc_magic.x;
y += sc->sc_cursor.cc_magic.y;
SELECT(vdac, BT459_IREG_CURSOR_X_LOW);
REG(vdac, bt_reg) = x; tc_wmb();
REG(vdac, bt_reg) = x >> 8; tc_wmb();
REG(vdac, bt_reg) = y; tc_wmb();
REG(vdac, bt_reg) = y >> 8; tc_wmb();
}
if (v & WSDISPLAY_CURSOR_DOCMAP) {
u_int8_t *cp = sc->sc_cursor.cc_color;
SELECT(vdac, BT459_IREG_CCOLOR_2);
REG(vdac, bt_reg) = cp[1]; tc_wmb();
REG(vdac, bt_reg) = cp[3]; tc_wmb();
REG(vdac, bt_reg) = cp[5]; tc_wmb();
REG(vdac, bt_reg) = cp[0]; tc_wmb();
REG(vdac, bt_reg) = cp[2]; tc_wmb();
REG(vdac, bt_reg) = cp[4]; tc_wmb();
}
if (v & WSDISPLAY_CURSOR_DOSHAPE) {
u_int8_t *ip, *mp, img, msk;
u_int8_t u;
int bcnt;
ip = (u_int8_t *)sc->sc_cursor.cc_image;
mp = (u_int8_t *)(sc->sc_cursor.cc_image + CURSOR_MAX_HEIGHT);
bcnt = 0;
SELECT(vdac, BT459_IREG_CRAM_BASE+0);
/* 64 pixel scan line is consisted with 16 byte cursor ram */
while (bcnt < sc->sc_cursor.cc_size.y * 16) {
/* pad right half 32 pixel when smaller than 33 */
if ((bcnt & 0x8) && sc->sc_cursor.cc_size.x < 33) {
REG(vdac, bt_reg) = 0; tc_wmb();
REG(vdac, bt_reg) = 0; tc_wmb();
}
else {
img = *ip++;
msk = *mp++;
img &= msk; /* cookie off image */
u = (msk & 0x0f) << 4 | (img & 0x0f);
REG(vdac, bt_reg) = shuffle[u]; tc_wmb();
u = (msk & 0xf0) | (img & 0xf0) >> 4;
REG(vdac, bt_reg) = shuffle[u]; tc_wmb();
}
bcnt += 2;
}
/* pad unoccupied scan lines */
while (bcnt < CURSOR_MAX_HEIGHT * 16) {
REG(vdac, bt_reg) = 0; tc_wmb();
REG(vdac, bt_reg) = 0; tc_wmb();
bcnt += 2;
}
}
#endif /* XXX snip XXX */
dc->dc_changed ^= cleared;
return (1);
}
static u_char ri_col_data[6][6] = {
{ 0, 0, 0, 0, 0, 0}, /* 1 bpp */
{ 0, 0, 0, 0, 0, 0}, /* 2 bpp */
{ 0, 0, 0, 0, 0, 0}, /* 4 bpp */
{ 0, 0, 0, 0, 0, 0}, /* 8 bpp */
{ 5, 5, 5, 0, 5, 10}, /* 16 bpp */
{ 8, 8, 8, 0, 8, 16}, /* 32 bpp */
};
static void
vidcvideo_colourmap_and_cursor_init(dc)
struct fb_devconfig *dc;
{
struct rasops_info *ri = &dc->rinfo;
u_char *rgbdat;
/* Whatever we do later... just make sure we have a
* sane palette to start with
*/
vidcvideo_stdpalette();
/* set up rgb bit pattern values for rasops_init */
rgbdat = ri_col_data[dc->dc_log2_depth];
ri->ri_rnum = rgbdat[0];
ri->ri_gnum = rgbdat[1];
ri->ri_bnum = rgbdat[2];
ri->ri_rpos = rgbdat[3];
ri->ri_gpos = rgbdat[4];
ri->ri_bpos = rgbdat[5];
}
static int
get_cmap(sc, p)
struct vidcvideo_softc *sc;
struct wsdisplay_cmap *p;
{
u_int index = p->index, count = p->count;
if (index >= CMAP_SIZE || (index + count) > CMAP_SIZE)
return (EINVAL);
if (!uvm_useracc(p->red, count, B_WRITE) ||
!uvm_useracc(p->green, count, B_WRITE) ||
!uvm_useracc(p->blue, count, B_WRITE))
return (EFAULT);
copyout(&sc->sc_dc->dc_cmap.r[index], p->red, count);
copyout(&sc->sc_dc->dc_cmap.g[index], p->green, count);
copyout(&sc->sc_dc->dc_cmap.b[index], p->blue, count);
return (0);
}
static int
set_cmap(sc, p)
struct vidcvideo_softc *sc;
struct wsdisplay_cmap *p;
{
struct fb_devconfig *dc = sc->sc_dc;
u_int index = p->index, count = p->count;
if (index >= CMAP_SIZE || (index + count) > CMAP_SIZE)
return (EINVAL);
if (!uvm_useracc(p->red, count, B_READ) ||
!uvm_useracc(p->green, count, B_READ) ||
!uvm_useracc(p->blue, count, B_READ))
return (EFAULT);
copyin(p->red, &dc->dc_cmap.r[index], count);
copyin(p->green, &dc->dc_cmap.g[index], count);
copyin(p->blue, &dc->dc_cmap.b[index], count);
dc->dc_changed |= WSDISPLAY_CMAP_DOLUT;
return (0);
}
static int
set_cursor(sc, p)
struct vidcvideo_softc *sc;
struct wsdisplay_cursor *p;
{
#define cc (&dc->dc_cursor)
struct fb_devconfig *dc = sc->sc_dc;
u_int v, index, count, icount;
v = p->which;
if (v & WSDISPLAY_CURSOR_DOCMAP) {
index = p->cmap.index;
count = p->cmap.count;
if (index >= CURSOR_MAX_COLOURS || (index + count) > CURSOR_MAX_COLOURS)
return (EINVAL);
if (!uvm_useracc(p->cmap.red, count, B_READ) ||
!uvm_useracc(p->cmap.green, count, B_READ) ||
!uvm_useracc(p->cmap.blue, count, B_READ))
return (EFAULT);
}
if (v & WSDISPLAY_CURSOR_DOSHAPE) {
if (p->size.x > CURSOR_MAX_WIDTH || p->size.y > CURSOR_MAX_HEIGHT)
return (EINVAL);
icount = sizeof(u_int32_t) * p->size.y;
if (!uvm_useracc(p->image, icount, B_READ) ||
!uvm_useracc(p->mask, icount, B_READ))
return (EFAULT);
}
if (v & WSDISPLAY_CURSOR_DOCUR)
dc->dc_curenb = p->enable;
if (v & WSDISPLAY_CURSOR_DOPOS)
set_curpos(sc, &p->pos);
if (v & WSDISPLAY_CURSOR_DOHOT)
cc->cc_hot = p->hot;
if (v & WSDISPLAY_CURSOR_DOCMAP) {
copyin(p->cmap.red, &cc->cc_color[index], count);
copyin(p->cmap.green, &cc->cc_color[index + 2], count);
copyin(p->cmap.blue, &cc->cc_color[index + 4], count);
}
if (v & WSDISPLAY_CURSOR_DOSHAPE) {
cc->cc_size = p->size;
memset(cc->cc_image, 0, sizeof cc->cc_image);
memset(cc->cc_mask, 0, sizeof cc->cc_mask);
copyin(p->image, cc->cc_image, icount);
copyin(p->mask, cc->cc_mask, icount);
}
dc->dc_changed |= v;
return (0);
#undef cc
}
static int
get_cursor(sc, p)
struct vidcvideo_softc *sc;
struct wsdisplay_cursor *p;
{
return (EPASSTHROUGH); /* XXX */
}
static void
set_curpos(sc, curpos)
struct vidcvideo_softc *sc;
struct wsdisplay_curpos *curpos;
{
struct fb_devconfig *dc = sc->sc_dc;
int x = curpos->x, y = curpos->y;
if (y < 0)
y = 0;
else if (y > dc->dc_ht)
y = dc->dc_ht;
if (x < 0)
x = 0;
else if (x > dc->dc_wid)
x = dc->dc_wid;
dc->dc_cursor.cc_pos.x = x;
dc->dc_cursor.cc_pos.y = y;
}
static void vv_copyrows(id, srcrow, dstrow, nrows)
void *id;
int srcrow, dstrow, nrows;
{
struct rasops_info *ri = id;
int height, offset, size;
int scrollup, scrolldown;
unsigned char *src, *dst;
/* All movements are done in multiples of character heigths */
height = ri->ri_font->fontheight * nrows;
offset = (srcrow - dstrow) * ri->ri_yscale;
size = height * ri->ri_stride;
/* check if we are full screen scrolling */
scrollup = (srcrow + nrows >= ri->ri_rows);
scrolldown = (dstrow + nrows >= ri->ri_rows);
if ((scrollup || scrolldown) && (videomemory.vidm_type == VIDEOMEM_TYPE_VRAM)) {
ri->ri_bits = vidcvideo_hwscroll(offset);
vidcvideo_progr_scroll(); /* sadistic ; shouldnt this be on vsync? */
/* wipe out remains of the screen if nessisary */
if (ri->ri_emuheight != ri->ri_height) vv_eraserows(id, ri->ri_rows, 1, NULL);
return;
};
/* Else we just copy the area : we're braindead for now
* Note: we can't use hardware scrolling when the softc isnt known yet...
* if its not known we dont have interrupts and we can't change the display
* address reliable other than in a Vsync
*/
src = ri->ri_bits + srcrow * ri->ri_font->fontheight * ri->ri_stride;
dst = ri->ri_bits + dstrow * ri->ri_font->fontheight * ri->ri_stride;
bcopy(src, dst, size);
}
static void vv_eraserows(id, startrow, nrows, attr)
void *id;
int startrow, nrows;
long attr;
{
struct rasops_info *ri = id;
int height;
unsigned char *src;
/* we're braindead for now */
height = ri->ri_font->fontheight * nrows * ri->ri_stride;
src = ri->ri_bits + startrow * ri->ri_font->fontheight * ri->ri_stride;
bzero(src, height);
}
static void vv_putchar(id, row, col, uc, attr)
void *id;
int row, col;
u_int uc;
long attr;
{
struct rasops_info *ri = id;
struct fb_devconfig *dc = (struct fb_devconfig *) (ri->ri_hw);
/* delay the write back operation of the screen area */
dc->dc_writeback_delay = SCREEN_WRITE_BACK_DELAY;
dc->dc_changed |= WSDISPLAY_WB_COUNTER;
/* just delegate */
dc->orig_ri_ops.putchar(id, row, col, uc, attr);
}
Reference in New Issue View Git Blame Copy Permalink