NetBSD-5.0.2/sys/arch/arm/iomd/vidcvideo.c
/* $NetBSD: vidcvideo.c,v 1.35 2008/04/29 17:09:47 matt 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 1.35 2008/04/29 17:09:47 matt 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 <dev/wscons/wsdisplay_vconsvar.h>
#include <uvm/uvm_extern.h>
#include <arm/arm32/pmap.h>
#include <arm/cpufunc.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 */
uint8_t r[CMAP_SIZE];
uint8_t g[CMAP_SIZE];
uint8_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;
uint8_t cc_color[6]; /* how many? */
uint32_t cc_image[(CURSOR_MAX_WIDTH/4) * CURSOR_MAX_HEIGHT];
uint32_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_width; /* width of frame buffer */
int dc_height; /* 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 */
void *dc_ih; /* interrupt handler for dc */
int dc_curenb; /* is cursor sprite enabled ? */
int _internal_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 wsdisplay_emulops orig_ri_ops; /* Rasops functions for deligation */
/* virtual console support */
struct vcons_data dc_vd;
struct vcons_screen dc_console;
};
struct vidcvideo_softc {
struct device sc_dev;
struct fb_devconfig *sc_dc; /* device configuration */
};
/* Function prototypes for glue */
static int vidcvideo_match(struct device *, struct cfdata *, void *);
static void vidcvideo_attach(struct device *, struct device *, void *);
/* config glue */
CFATTACH_DECL(vidcvideo, sizeof(struct vidcvideo_softc),
vidcvideo_match, vidcvideo_attach, NULL, NULL);
static struct fb_devconfig vidcvideo_console_dc;
static bool vidcvideo_is_console = false;
static struct wsscreen_descr vidcvideo_stdscreen = {
"std", 0, 0,
NULL, /* textops */
8, 16,
WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
NULL
};
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(void *, void *, u_long, void *, int,
struct lwp *);
static paddr_t vidcvideommap(void *, void *, off_t, int);
static void vidcvideoinit_screen(void *, struct vcons_screen *, int, long *);
static void vidcvideo_queue_dc_change(struct fb_devconfig*, int);
static int flush_dc_changes_to_screen(struct fb_devconfig*);
static struct wsdisplay_accessops vidcvideo_accessops = {
vidcvideoioctl,
vidcvideommap,
NULL, /* alloc_screen */
NULL, /* free_screen */
NULL, /* show_screen */
NULL, /* load_font */
NULL, /* pollc */
NULL /* scroll */
};
/* Function prototypes */
int vidcvideo_cnattach(vaddr_t);
static void vidcvideo_colourmap_and_cursor_init(struct fb_devconfig *);
static int get_cmap(struct vidcvideo_softc *, struct wsdisplay_cmap *);
static int set_cmap(struct vidcvideo_softc *, struct wsdisplay_cmap *);
static int set_cursor(struct vidcvideo_softc *, struct wsdisplay_cursor *);
static int get_cursor(struct vidcvideo_softc *, struct wsdisplay_cursor *);
static void set_curpos(struct vidcvideo_softc *, struct wsdisplay_curpos *);
static void vidcvideo_getdevconfig(vaddr_t, u_int, struct fb_devconfig *);
static int vidcvideointr(void *);
/* Acceleration function prototypes */
static void vv_copyrows(void *, int, int, int);
static void vv_eraserows(void *, int, int, long);
static void vv_putchar(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(vaddr_t dense_addr, u_int mem_size,
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_width = dc->mode_info.timings.hdisplay;
dc->dc_height = dc->mode_info.timings.vdisplay;
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_width / 8;
break;
case 2:
dc->dc_rowbytes = dc->dc_width / 4;
break;
case 4:
dc->dc_rowbytes = dc->dc_width / 2;
break;
case 8:
dc->dc_rowbytes = dc->dc_width;
break;
case 16:
dc->dc_rowbytes = dc->dc_width * 2;
break;
case 32:
dc->dc_rowbytes = dc->dc_width * 4;
break;
default:
printf("Unknown colour depth %d ... what to do ?", dc->dc_depth);
break;
}
/* setup the correct size */
dc->dc_size = mem_size;
/* initialize colormap and cursor resource */
vidcvideo_colourmap_and_cursor_init(dc);
/* blank the memory */
bzero((void*)dc->dc_vaddr, dc->dc_size);
/* intitialise miscelanious */
dc->dc_writeback_delay = 0;
}
static void
vidcvideoinit_screen(void *cookie, struct vcons_screen *scr,
int existing, long *defattr)
{
struct rasops_info *ri = &scr->scr_ri;
struct fb_devconfig *dc = cookie;
if ((scr == &dc->dc_console) && (dc->dc_vd.active != NULL))
return;
ri->ri_flg = 0; /* RI_CENTER | RI_FULLCLEAR; */
ri->ri_depth = dc->dc_depth;
ri->ri_bits = (void *) dc->dc_videobase;
ri->ri_width = dc->dc_width;
ri->ri_height = dc->dc_height;
ri->ri_stride = dc->dc_rowbytes;
ri->ri_hw = &dc->dc_console; /* link back */
rasops_init(ri,
ri->ri_height / 8,
ri->ri_width / 8);
ri->ri_caps = WSSCREEN_WSCOLORS;
rasops_reconfig(ri,
ri->ri_height / ri->ri_font->fontheight,
ri->ri_width / ri->ri_font->fontwidth);
/*
* Provide a hook for the acceleration functions and make a copy of the
* original rasops functions for passing on calls
*/
memcpy(&(dc->orig_ri_ops), &(ri->ri_ops),
sizeof(struct wsdisplay_emulops));
/* add our accelerated functions */
ri->ri_ops.eraserows = vv_eraserows;
ri->ri_ops.copyrows = vv_copyrows;
/* add the extra activity measuring functions; they just delegate on */
ri->ri_ops.putchar = vv_putchar;
vidcvideo_stdscreen.nrows = ri->ri_rows;
vidcvideo_stdscreen.ncols = ri->ri_cols;
vidcvideo_stdscreen.textops = &ri->ri_ops;
vidcvideo_stdscreen.capabilities = ri->ri_caps;
}
static void
vidcvideo_attach(struct device *parent, struct device *self, void *aux)
{
struct vidcvideo_softc *sc = (struct vidcvideo_softc *)self;
struct fb_devconfig *dc;
struct wsemuldisplaydev_attach_args waa;
long defattr;
dc = sc->sc_dc = &vidcvideo_console_dc;
/*
* for reasons which are crazy we init vidcvideo twice,
* the second time sets up the cursor
*/
vidcvideo_init();
if (!vidcvideo_is_console) {
vidcvideo_getdevconfig(videomemory.vidm_vbase,
videomemory.vidm_size,
sc->sc_dc);
}
vcons_init(&dc->dc_vd, dc, &vidcvideo_stdscreen, &vidcvideo_accessops);
dc->dc_vd.init_screen = vidcvideoinit_screen;
vcons_init_screen(&dc->dc_vd, &dc->dc_console, 1, &defattr);
dc->dc_console.scr_flags |= VCONS_SCREEN_IS_STATIC;
vidcvideo_printdetails();
printf(": mode %s, %dbpp\n", dc->mode_info.timings.name,
dc->dc_depth);
/* set up interrupt flags */
vidcvideo_queue_dc_change(dc, WSDISPLAY_CMAP_DOLUT);
/* Establish an interrupt handler, and clear any pending interrupts */
dc->dc_ih = 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 = &dc->dc_vd;
config_found(self, &waa, wsemuldisplaydevprint);
}
static int
vidcvideoioctl(void *v, void *vs, u_long cmd, void *data, int flag,
struct lwp *l)
{
struct vcons_data *vd = v;
struct vidcvideo_softc *sc = vd->cookie;
struct fb_devconfig *dc = sc->sc_dc;
struct vcons_screen *ms = vd->active;
int state;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_VIDC;
return 0;
case WSDISPLAYIO_GINFO:
if (ms == NULL)
return ENODEV;
#define wsd_fbip ((struct wsdisplay_fbinfo *)data)
wsd_fbip->height = dc->dc_height;
wsd_fbip->width = dc->dc_width;
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_LINEBYTES:
*(u_int *)data = dc->dc_rowbytes;
return 0;
case WSDISPLAYIO_SVIDEO:
state = *(int *)data;
dc->dc_blanked = (state == WSDISPLAYIO_VIDEO_OFF);
vidcvideo_queue_dc_change(dc, 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);
vidcvideo_queue_dc_change(dc, 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(void *v, void *vs, off_t offset, int prot)
{
struct vcons_data *vd = v;
struct vidcvideo_softc *sc = vd->cookie;
if (offset >= sc->sc_dc->dc_size || offset < 0)
return -1;
return arm_btop(sc->sc_dc->dc_paddr + offset);
}
/* EXPORT */ int
vidcvideo_cnattach(vaddr_t addr)
{
struct fb_devconfig *dc = &vidcvideo_console_dc;
struct rasops_info *ri;
long defattr;
vidcvideo_init();
/* fetch current framebuffer config */
vidcvideo_getdevconfig(videomemory.vidm_vbase,
videomemory.vidm_size,
dc);
dc->dc_vd.active = NULL;
vidcvideoinit_screen(dc, &dc->dc_console, 1, &defattr);
ri = &(dc->dc_console.scr_ri);
ri->ri_hw = &dc->dc_console;
dc->dc_console.scr_cookie = dc;
(*ri->ri_ops.allocattr)(ri,
WS_DEFAULT_FG, /* fg */
WS_DEFAULT_BG, /* bg */
0, /* wsattrs */
&defattr);
wsdisplay_cnattach(&vidcvideo_stdscreen,
ri, /* emulcookie */
0, 0, /* cursor position */
defattr);
vidcvideo_is_console = true;
return 0;
}
static int
vidcvideointr(void *arg)
{
struct fb_devconfig *dc = arg;
return flush_dc_changes_to_screen(dc);
}
static int
flush_dc_changes_to_screen(struct fb_devconfig *dc)
{
int v, cleared = 0;
v = dc->_internal_dc_changed;
if (v == 0) {
disable_irq(IRQ_FLYBACK);
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;
}
dc->_internal_dc_changed ^= cleared;
if (dc->_internal_dc_changed == 0) {
disable_irq(IRQ_FLYBACK);
}
return 1;
}
static void vidcvideo_queue_dc_change(struct fb_devconfig *dc, int dc_change)
{
dc->_internal_dc_changed |= dc_change;
if (curcpl() == IPL_HIGH) {
/* running in ddb or without interrupts */
dc->dc_writeback_delay = 1;
flush_dc_changes_to_screen(dc);
} else {
/*
* running with interrupts so handle this in the next
* vsync
*/
if (dc->dc_ih) {
enable_irq(IRQ_FLYBACK);
}
}
}
static const 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 */
{ 6, 5, 5, 0, 6, 11}, /* 16 bpp */
{ 8, 8, 8, 0, 8, 16}, /* 32 bpp */
};
static void
vidcvideo_colourmap_and_cursor_init(struct fb_devconfig *dc)
{
struct rasops_info *ri = &dc->dc_console.scr_ri;
const u_char *rgbdat;
struct hwcmap256 *cm;
const u_int8_t *p;
int index;
/* 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];
/* initialise color map */
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];
}
/* flush to hardware */
vidcvideo_queue_dc_change(dc, WSDISPLAY_CMAP_DOLUT);
}
static int
get_cmap(struct vidcvideo_softc *sc, struct wsdisplay_cmap *p)
{
u_int index = p->index, count = p->count;
int error;
if (index >= CMAP_SIZE || count > CMAP_SIZE - index)
return EINVAL;
error = copyout(&sc->sc_dc->dc_cmap.r[index], p->red, count);
if (error)
return error;
error = copyout(&sc->sc_dc->dc_cmap.g[index], p->green, count);
if (error)
return error;
error = copyout(&sc->sc_dc->dc_cmap.b[index], p->blue, count);
return error;
}
static int
set_cmap(struct vidcvideo_softc *sc, struct wsdisplay_cmap *p)
{
struct fb_devconfig *dc = sc->sc_dc;
struct hwcmap256 cmap;
u_int index = p->index, count = p->count;
int error;
if (index >= CMAP_SIZE || (index + count) > CMAP_SIZE)
return EINVAL;
error = copyin(p->red, &cmap.r[index], count);
if (error)
return error;
error = copyin(p->green, &cmap.g[index], count);
if (error)
return error;
error = copyin(p->blue, &cmap.b[index], count);
if (error)
return error;
memcpy(&dc->dc_cmap.r[index], &cmap.r[index], count);
memcpy(&dc->dc_cmap.g[index], &cmap.g[index], count);
memcpy(&dc->dc_cmap.b[index], &cmap.b[index], count);
vidcvideo_queue_dc_change(dc, WSDISPLAY_CMAP_DOLUT);
return 0;
}
static int
set_cursor(struct vidcvideo_softc *sc, struct wsdisplay_cursor *p)
{
#define cc (&dc->dc_cursor)
struct fb_devconfig *dc = sc->sc_dc;
u_int v, index = 0, count = 0, icount = 0;
uint8_t r[2], g[2], b[2], image[512], mask[512];
int error;
/* XXX gcc does not detect identical conditions */
index = count = icount = 0;
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;
error = copyin(p->cmap.red, &r[index], count);
if (error)
return error;
error = copyin(p->cmap.green, &g[index], count);
if (error)
return error;
error = copyin(p->cmap.blue, &b[index], count);
if (error)
return error;
}
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;
error = copyin(p->image, &image, icount);
if (error)
return error;
error = copyin(p->mask, &mask, icount);
if (error)
return error;
}
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) {
memcpy(&cc->cc_color[index], &r[index], count);
memcpy(&cc->cc_color[index + 2], &g[index], count);
memcpy(&cc->cc_color[index + 4], &b[index], count);
}
if (v & WSDISPLAY_CURSOR_DOSHAPE) {
cc->cc_size = p->size;
memset(cc->cc_image, 0, sizeof cc->cc_image);
memcpy(cc->cc_image, image, icount);
memset(cc->cc_mask, 0, sizeof cc->cc_mask);
memcpy(cc->cc_mask, mask, icount);
}
vidcvideo_queue_dc_change(dc, v);
return 0;
#undef cc
}
static int
get_cursor(struct vidcvideo_softc *sc, struct wsdisplay_cursor *p)
{
return EPASSTHROUGH; /* XXX */
}
static void
set_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_height)
y = dc->dc_height;
if (x < 0)
x = 0;
else if (x > dc->dc_width)
x = dc->dc_width;
dc->dc_cursor.cc_pos.x = x;
dc->dc_cursor.cc_pos.y = y;
}
static void vv_copyrows(void *id, int srcrow, int dstrow, int nrows)
{
struct rasops_info *ri = id;
int height, offset, size;
int scrollup, scrolldown;
unsigned char *src, *dst;
struct vcons_screen *scr = ri->ri_hw;
struct fb_devconfig *dc = (struct fb_devconfig *) (scr->scr_cookie);
/* 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 0
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, 0);
return;
}
#endif
/*
* 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;
memmove(dst, src, size);
/* delay the write back operation of the screen area */
dc->dc_writeback_delay = SCREEN_WRITE_BACK_DELAY;
vidcvideo_queue_dc_change(dc, WSDISPLAY_WB_COUNTER);
}
static void vv_eraserows(void *id, int startrow, int nrows, long attr)
{
struct rasops_info *ri = id;
int height;
unsigned char *src;
struct vcons_screen *scr = ri->ri_hw;
struct fb_devconfig *dc = (struct fb_devconfig *) (scr->scr_cookie);
/* 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;
memset(src, 0, height);
/* delay the write back operation of the screen area */
dc->dc_writeback_delay = SCREEN_WRITE_BACK_DELAY;
vidcvideo_queue_dc_change(dc, WSDISPLAY_WB_COUNTER);
}
static void vv_putchar(void *id, int row, int col, u_int uc, long attr)
{
struct rasops_info *ri = id;
struct vcons_screen *scr = ri->ri_hw;
struct fb_devconfig *dc = (struct fb_devconfig *) (scr->scr_cookie);
/* just delegate */
dc->orig_ri_ops.putchar(id, row, col, uc, attr);
/* delay the write back operation of the screen area */
dc->dc_writeback_delay = SCREEN_WRITE_BACK_DELAY;
vidcvideo_queue_dc_change(dc, WSDISPLAY_WB_COUNTER);
}