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freebsd-dev/sys/dev/syscons/scvidctl.c
tanimura e2c1f691d6 Lock struct pgrp, session and sigio. 
New locks are:

- pgrpsess_lock which locks the whole pgrps and sessions,
- pg_mtx which protects the pgrp members, and
- s_mtx which protects the session members.

Please refer to sys/proc.h for the coverage of these locks.

Changes on the pgrp/session interface:

- pgfind() needs the pgrpsess_lock held.

- The caller of enterpgrp() is responsible to allocate a new pgrp and
  session.

- Call enterthispgrp() in order to enter an existing pgrp.

- pgsignal() requires a pgrp lock held.

Reviewed by:	jhb, alfred
Tested on:	cvsup.jp.FreeBSD.org
		(which is a quad-CPU machine running -current)
2002-02-23 11:12:57 +00:00

843 lines
22 KiB
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/*-
* Copyright (c) 1998 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
* 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 as
* the first lines of this file unmodified.
* 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 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.
*
* $FreeBSD$
*/
#include "opt_syscons.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/signalvar.h>
#include <sys/tty.h>
#include <sys/kernel.h>
#include <sys/fbio.h>
#include <sys/consio.h>
#include <sys/filedesc.h>
#include <sys/lock.h>
#include <sys/sx.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <dev/fb/fbreg.h>
#include <dev/syscons/syscons.h>
SET_DECLARE(scrndr_set, const sc_renderer_t);
/* for compatibility with previous versions */
/* 3.0-RELEASE used the following structure */
typedef struct old_video_adapter {
int va_index;
int va_type;
int va_flags;
/* flag bits are the same as the -CURRENT
#define V_ADP_COLOR (1<<0)
#define V_ADP_MODECHANGE (1<<1)
#define V_ADP_STATESAVE (1<<2)
#define V_ADP_STATELOAD (1<<3)
#define V_ADP_FONT (1<<4)
#define V_ADP_PALETTE (1<<5)
#define V_ADP_BORDER (1<<6)
#define V_ADP_VESA (1<<7)
*/
int va_crtc_addr;
u_int va_window; /* virtual address */
size_t va_window_size;
size_t va_window_gran;
u_int va_buffer; /* virtual address */
size_t va_buffer_size;
int va_initial_mode;
int va_initial_bios_mode;
int va_mode;
} old_video_adapter_t;
#define OLD_CONS_ADPINFO _IOWR('c', 101, old_video_adapter_t)
/* 3.1-RELEASE used the following structure */
typedef struct old_video_adapter_info {
int va_index;
int va_type;
char va_name[16];
int va_unit;
int va_flags;
int va_io_base;
int va_io_size;
int va_crtc_addr;
int va_mem_base;
int va_mem_size;
u_int va_window; /* virtual address */
size_t va_window_size;
size_t va_window_gran;
u_int va_buffer;;
size_t va_buffer_size;
int va_initial_mode;
int va_initial_bios_mode;
int va_mode;
int va_line_width;
} old_video_adapter_info_t;
#define OLD_CONS_ADPINFO2 _IOWR('c', 101, old_video_adapter_info_t)
/* 3.0-RELEASE and 3.1-RELEASE used the following structure */
typedef struct old_video_info {
int vi_mode;
int vi_flags;
/* flag bits are the same as the -CURRENT
#define V_INFO_COLOR (1<<0)
#define V_INFO_GRAPHICS (1<<1)
#define V_INFO_LINEAR (1<<2)
#define V_INFO_VESA (1<<3)
*/
int vi_width;
int vi_height;
int vi_cwidth;
int vi_cheight;
int vi_depth;
int vi_planes;
u_int vi_window; /* physical address */
size_t vi_window_size;
size_t vi_window_gran;
u_int vi_buffer; /* physical address */
size_t vi_buffer_size;
} old_video_info_t;
#define OLD_CONS_MODEINFO _IOWR('c', 102, old_video_info_t)
#define OLD_CONS_FINDMODE _IOWR('c', 103, old_video_info_t)
int
sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode, int xsize, int ysize,
int fontsize)
{
video_info_t info;
u_char *font;
int prev_ysize;
int error;
int s;
if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info))
return ENODEV;
/* adjust argument values */
if (fontsize <= 0)
fontsize = info.vi_cheight;
if (fontsize < 14) {
fontsize = 8;
#ifndef SC_NO_FONT_LOADING
if (!(scp->sc->fonts_loaded & FONT_8))
return EINVAL;
font = scp->sc->font_8;
#else
font = NULL;
#endif
} else if (fontsize >= 16) {
fontsize = 16;
#ifndef SC_NO_FONT_LOADING
if (!(scp->sc->fonts_loaded & FONT_16))
return EINVAL;
font = scp->sc->font_16;
#else
font = NULL;
#endif
} else {
fontsize = 14;
#ifndef SC_NO_FONT_LOADING
if (!(scp->sc->fonts_loaded & FONT_14))
return EINVAL;
font = scp->sc->font_14;
#else
font = NULL;
#endif
}
if ((xsize <= 0) || (xsize > info.vi_width))
xsize = info.vi_width;
if ((ysize <= 0) || (ysize > info.vi_height))
ysize = info.vi_height;
/* stop screen saver, etc */
s = spltty();
if ((error = sc_clean_up(scp))) {
splx(s);
return error;
}
if (sc_render_match(scp, scp->sc->adp->va_name, 0) == NULL) {
splx(s);
return ENODEV;
}
/* set up scp */
#ifndef SC_NO_HISTORY
if (scp->history != NULL)
sc_hist_save(scp);
#endif
prev_ysize = scp->ysize;
/*
* This is a kludge to fend off scrn_update() while we
* muck around with scp. XXX
*/
scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE | MOUSE_VISIBLE);
scp->mode = mode;
scp->xsize = xsize;
scp->ysize = ysize;
scp->xoff = 0;
scp->yoff = 0;
scp->xpixel = scp->xsize*8;
scp->ypixel = scp->ysize*fontsize;
scp->font = font;
scp->font_size = fontsize;
/* allocate buffers */
sc_alloc_scr_buffer(scp, TRUE, TRUE);
sc_init_emulator(scp, NULL);
#ifndef SC_NO_CUTPASTE
sc_alloc_cut_buffer(scp, FALSE);
#endif
#ifndef SC_NO_HISTORY
sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
#endif
splx(s);
if (scp == scp->sc->cur_scp)
set_mode(scp);
scp->status &= ~UNKNOWN_MODE;
if (tp == NULL)
return 0;
DPRINTF(5, ("ws_*size (%d,%d), size (%d,%d)\n",
tp->t_winsize.ws_col, tp->t_winsize.ws_row, scp->xsize, scp->ysize));
if (tp->t_winsize.ws_col != scp->xsize
|| tp->t_winsize.ws_row != scp->ysize) {
tp->t_winsize.ws_col = scp->xsize;
tp->t_winsize.ws_row = scp->ysize;
if (tp->t_pgrp != NULL) {
PGRP_LOCK(tp->t_pgrp);
pgsignal(tp->t_pgrp, SIGWINCH, 1);
PGRP_UNLOCK(tp->t_pgrp);
}
}
return 0;
}
int
sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode)
{
#ifdef SC_NO_MODE_CHANGE
return ENODEV;
#else
video_info_t info;
int error;
int s;
if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info))
return ENODEV;
/* stop screen saver, etc */
s = spltty();
if ((error = sc_clean_up(scp))) {
splx(s);
return error;
}
if (sc_render_match(scp, scp->sc->adp->va_name, GRAPHICS_MODE) == NULL) {
splx(s);
return ENODEV;
}
/* set up scp */
scp->status |= (UNKNOWN_MODE | GRAPHICS_MODE | MOUSE_HIDDEN);
scp->status &= ~(PIXEL_MODE | MOUSE_VISIBLE);
scp->mode = mode;
/*
* Don't change xsize and ysize; preserve the previous vty
* and history buffers.
*/
scp->xoff = 0;
scp->yoff = 0;
scp->xpixel = info.vi_width;
scp->ypixel = info.vi_height;
scp->font = NULL;
scp->font_size = 0;
#ifndef SC_NO_SYSMOUSE
/* move the mouse cursor at the center of the screen */
sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
#endif
sc_init_emulator(scp, NULL);
splx(s);
if (scp == scp->sc->cur_scp)
set_mode(scp);
/* clear_graphics();*/
scp->status &= ~UNKNOWN_MODE;
if (tp == NULL)
return 0;
if (tp->t_winsize.ws_xpixel != scp->xpixel
|| tp->t_winsize.ws_ypixel != scp->ypixel) {
tp->t_winsize.ws_xpixel = scp->xpixel;
tp->t_winsize.ws_ypixel = scp->ypixel;
if (tp->t_pgrp != NULL) {
PGRP_LOCK(tp->t_pgrp);
pgsignal(tp->t_pgrp, SIGWINCH, 1);
PGRP_UNLOCK(tp->t_pgrp);
}
}
return 0;
#endif /* SC_NO_MODE_CHANGE */
}
int
sc_set_pixel_mode(scr_stat *scp, struct tty *tp, int xsize, int ysize,
int fontsize)
{
#ifndef SC_PIXEL_MODE
return ENODEV;
#else
video_info_t info;
u_char *font;
int prev_ysize;
int error;
int s;
if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, scp->mode, &info))
return ENODEV; /* this shouldn't happen */
/* adjust argument values */
if (fontsize <= 0)
fontsize = info.vi_cheight;
if (fontsize < 14) {
fontsize = 8;
#ifndef SC_NO_FONT_LOADING
if (!(scp->sc->fonts_loaded & FONT_8))
return EINVAL;
font = scp->sc->font_8;
#else
font = NULL;
#endif
} else if (fontsize >= 16) {
fontsize = 16;
#ifndef SC_NO_FONT_LOADING
if (!(scp->sc->fonts_loaded & FONT_16))
return EINVAL;
font = scp->sc->font_16;
#else
font = NULL;
#endif
} else {
fontsize = 14;
#ifndef SC_NO_FONT_LOADING
if (!(scp->sc->fonts_loaded & FONT_14))
return EINVAL;
font = scp->sc->font_14;
#else
font = NULL;
#endif
}
if (xsize <= 0)
xsize = info.vi_width/8;
if (ysize <= 0)
ysize = info.vi_height/fontsize;
if ((info.vi_width < xsize*8) || (info.vi_height < ysize*fontsize))
return EINVAL;
/* only 16 color, 4 plane modes are supported XXX */
if ((info.vi_depth != 4) || (info.vi_planes != 4))
return ENODEV;
/*
* set_pixel_mode() currently does not support video modes whose
* memory size is larger than 64K. Because such modes require
* bank switching to access the entire screen. XXX
*/
if (info.vi_width*info.vi_height/8 > info.vi_window_size)
return ENODEV;
/* stop screen saver, etc */
s = spltty();
if ((error = sc_clean_up(scp))) {
splx(s);
return error;
}
if (sc_render_match(scp, scp->sc->adp->va_name, PIXEL_MODE) == NULL) {
splx(s);
return ENODEV;
}
#if 0
if (scp->tsw)
(*scp->tsw->te_term)(scp, scp->ts);
scp->tsw = NULL;
scp->ts = NULL;
#endif
/* set up scp */
#ifndef SC_NO_HISTORY
if (scp->history != NULL)
sc_hist_save(scp);
#endif
prev_ysize = scp->ysize;
scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
scp->xsize = xsize;
scp->ysize = ysize;
scp->xoff = (scp->xpixel/8 - xsize)/2;
scp->yoff = (scp->ypixel/fontsize - ysize)/2;
scp->font = font;
scp->font_size = fontsize;
/* allocate buffers */
sc_alloc_scr_buffer(scp, TRUE, TRUE);
sc_init_emulator(scp, NULL);
#ifndef SC_NO_CUTPASTE
sc_alloc_cut_buffer(scp, FALSE);
#endif
#ifndef SC_NO_HISTORY
sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
#endif
splx(s);
if (scp == scp->sc->cur_scp) {
sc_set_border(scp, scp->border);
sc_set_cursor_image(scp);
}
scp->status &= ~UNKNOWN_MODE;
if (tp == NULL)
return 0;
if (tp->t_winsize.ws_col != scp->xsize
|| tp->t_winsize.ws_row != scp->ysize) {
tp->t_winsize.ws_col = scp->xsize;
tp->t_winsize.ws_row = scp->ysize;
if (tp->t_pgrp != NULL) {
PGRP_LOCK(tp->t_pgrp);
pgsignal(tp->t_pgrp, SIGWINCH, 1);
PGRP_UNLOCK(tp->t_pgrp);
}
}
return 0;
#endif /* SC_PIXEL_MODE */
}
#define fb_ioctl(a, c, d) \
(((a) == NULL) ? ENODEV : \
(*vidsw[(a)->va_index]->ioctl)((a), (c), (caddr_t)(d)))
int
sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data, int flag, struct thread *td)
{
scr_stat *scp;
video_adapter_t *adp;
video_info_t info;
video_adapter_info_t adp_info;
int error;
int s;
scp = SC_STAT(tp->t_dev);
if (scp == NULL) /* tp == SC_MOUSE */
return ENOIOCTL;
adp = scp->sc->adp;
if (adp == NULL) /* shouldn't happen??? */
return ENODEV;
switch (cmd) {
case CONS_CURRENTADP: /* get current adapter index */
case FBIO_ADAPTER:
return fb_ioctl(adp, FBIO_ADAPTER, data);
case CONS_CURRENT: /* get current adapter type */
case FBIO_ADPTYPE:
return fb_ioctl(adp, FBIO_ADPTYPE, data);
case OLD_CONS_ADPINFO: /* adapter information (old interface) */
if (((old_video_adapter_t *)data)->va_index >= 0) {
adp = vid_get_adapter(((old_video_adapter_t *)data)->va_index);
if (adp == NULL)
return ENODEV;
}
((old_video_adapter_t *)data)->va_index = adp->va_index;
((old_video_adapter_t *)data)->va_type = adp->va_type;
((old_video_adapter_t *)data)->va_flags = adp->va_flags;
((old_video_adapter_t *)data)->va_crtc_addr = adp->va_crtc_addr;
((old_video_adapter_t *)data)->va_window = adp->va_window;
((old_video_adapter_t *)data)->va_window_size = adp->va_window_size;
((old_video_adapter_t *)data)->va_window_gran = adp->va_window_gran;
((old_video_adapter_t *)data)->va_buffer = adp->va_buffer;
((old_video_adapter_t *)data)->va_buffer_size = adp->va_buffer_size;
((old_video_adapter_t *)data)->va_mode = adp->va_mode;
((old_video_adapter_t *)data)->va_initial_mode = adp->va_initial_mode;
((old_video_adapter_t *)data)->va_initial_bios_mode
= adp->va_initial_bios_mode;
return 0;
case OLD_CONS_ADPINFO2: /* adapter information (yet another old I/F) */
adp_info.va_index = ((old_video_adapter_info_t *)data)->va_index;
if (adp_info.va_index >= 0) {
adp = vid_get_adapter(adp_info.va_index);
if (adp == NULL)
return ENODEV;
}
error = fb_ioctl(adp, FBIO_ADPINFO, &adp_info);
if (error == 0)
bcopy(&adp_info, data, sizeof(old_video_adapter_info_t));
return error;
case CONS_ADPINFO: /* adapter information */
case FBIO_ADPINFO:
if (((video_adapter_info_t *)data)->va_index >= 0) {
adp = vid_get_adapter(((video_adapter_info_t *)data)->va_index);
if (adp == NULL)
return ENODEV;
}
return fb_ioctl(adp, FBIO_ADPINFO, data);
case CONS_GET: /* get current video mode */
case FBIO_GETMODE:
*(int *)data = scp->mode;
return 0;
#ifndef SC_NO_MODE_CHANGE
case FBIO_SETMODE: /* set video mode */
if (!(adp->va_flags & V_ADP_MODECHANGE))
return ENODEV;
info.vi_mode = *(int *)data;
error = fb_ioctl(adp, FBIO_MODEINFO, &info);
if (error)
return error;
if (info.vi_flags & V_INFO_GRAPHICS)
return sc_set_graphics_mode(scp, tp, *(int *)data);
else
return sc_set_text_mode(scp, tp, *(int *)data, 0, 0, 0);
#endif /* SC_NO_MODE_CHANGE */
case OLD_CONS_MODEINFO: /* get mode information (old infterface) */
info.vi_mode = ((old_video_info_t *)data)->vi_mode;
error = fb_ioctl(adp, FBIO_MODEINFO, &info);
if (error == 0)
bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
return error;
case CONS_MODEINFO: /* get mode information */
case FBIO_MODEINFO:
return fb_ioctl(adp, FBIO_MODEINFO, data);
case OLD_CONS_FINDMODE: /* find a matching video mode (old interface) */
bzero(&info, sizeof(info));
bcopy((old_video_info_t *)data, &info, sizeof(old_video_info_t));
error = fb_ioctl(adp, FBIO_FINDMODE, &info);
if (error == 0)
bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
return error;
case CONS_FINDMODE: /* find a matching video mode */
case FBIO_FINDMODE:
return fb_ioctl(adp, FBIO_FINDMODE, data);
case CONS_SETWINORG: /* set frame buffer window origin */
case FBIO_SETWINORG:
if (scp != scp->sc->cur_scp)
return ENODEV; /* XXX */
return fb_ioctl(adp, FBIO_SETWINORG, data);
case FBIO_GETWINORG: /* get frame buffer window origin */
if (scp != scp->sc->cur_scp)
return ENODEV; /* XXX */
return fb_ioctl(adp, FBIO_GETWINORG, data);
case FBIO_GETDISPSTART:
case FBIO_SETDISPSTART:
case FBIO_GETLINEWIDTH:
case FBIO_SETLINEWIDTH:
if (scp != scp->sc->cur_scp)
return ENODEV; /* XXX */
return fb_ioctl(adp, cmd, data);
case FBIO_GETPALETTE:
case FBIO_SETPALETTE:
case FBIOPUTCMAP:
case FBIOGETCMAP:
case FBIOGTYPE:
case FBIOGATTR:
case FBIOSVIDEO:
case FBIOGVIDEO:
case FBIOSCURSOR:
case FBIOGCURSOR:
case FBIOSCURPOS:
case FBIOGCURPOS:
case FBIOGCURMAX:
if (scp != scp->sc->cur_scp)
return ENODEV; /* XXX */
return fb_ioctl(adp, cmd, data);
case FBIO_BLANK:
if (scp != scp->sc->cur_scp)
return ENODEV; /* XXX */
return fb_ioctl(adp, cmd, data);
#ifndef SC_NO_MODE_CHANGE
/* generic text modes */
case SW_TEXT_80x25: case SW_TEXT_80x30:
case SW_TEXT_80x43: case SW_TEXT_80x50:
case SW_TEXT_80x60:
/* FALL THROUGH */
/* VGA TEXT MODES */
case SW_VGA_C40x25:
case SW_VGA_C80x25: case SW_VGA_M80x25:
case SW_VGA_C80x30: case SW_VGA_M80x30:
case SW_VGA_C80x50: case SW_VGA_M80x50:
case SW_VGA_C80x60: case SW_VGA_M80x60:
case SW_VGA_C90x25: case SW_VGA_M90x25:
case SW_VGA_C90x30: case SW_VGA_M90x30:
case SW_VGA_C90x43: case SW_VGA_M90x43:
case SW_VGA_C90x50: case SW_VGA_M90x50:
case SW_VGA_C90x60: case SW_VGA_M90x60:
case SW_B40x25: case SW_C40x25:
case SW_B80x25: case SW_C80x25:
case SW_ENH_B40x25: case SW_ENH_C40x25:
case SW_ENH_B80x25: case SW_ENH_C80x25:
case SW_ENH_B80x43: case SW_ENH_C80x43:
case SW_EGAMONO80x25:
#ifdef PC98
/* PC98 TEXT MODES */
case SW_PC98_80x25:
case SW_PC98_80x30:
#endif
if (!(adp->va_flags & V_ADP_MODECHANGE))
return ENODEV;
return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0);
/* GRAPHICS MODES */
case SW_BG320: case SW_BG640:
case SW_CG320: case SW_CG320_D: case SW_CG640_E:
case SW_CG640x350: case SW_ENH_CG640:
case SW_BG640x480: case SW_CG640x480: case SW_VGA_CG320:
case SW_VGA_MODEX:
#ifdef PC98
/* PC98 GRAPHICS MODES */
case SW_PC98_EGC640x400: case SW_PC98_PEGC640x400:
case SW_PC98_PEGC640x480:
#endif
if (!(adp->va_flags & V_ADP_MODECHANGE))
return ENODEV;
return sc_set_graphics_mode(scp, tp, cmd & 0xff);
#endif /* SC_NO_MODE_CHANGE */
case KDSETMODE: /* set current mode of this (virtual) console */
switch (*(int *)data) {
case KD_TEXT: /* switch to TEXT (known) mode */
/*
* If scp->mode is of graphics modes, we don't know which
* text mode to switch back to...
*/
if (scp->status & GRAPHICS_MODE)
return EINVAL;
/* restore fonts & palette ! */
#if 0
#ifndef SC_NO_FONT_LOADING
if (ISFONTAVAIL(adp->va_flags)
&& !(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
/*
* FONT KLUDGE
* Don't load fonts for now... XXX
*/
if (scp->sc->fonts_loaded & FONT_8)
sc_load_font(scp, 0, 8, scp->sc->font_8, 0, 256);
if (scp->sc->fonts_loaded & FONT_14)
sc_load_font(scp, 0, 14, scp->sc->font_14, 0, 256);
if (scp->sc->fonts_loaded & FONT_16)
sc_load_font(scp, 0, 16, scp->sc->font_16, 0, 256);
}
#endif /* SC_NO_FONT_LOADING */
#endif
#ifndef SC_NO_PALETTE_LOADING
load_palette(adp, scp->sc->palette);
#endif
#ifndef PC98
/* move hardware cursor out of the way */
(*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1);
#endif
/* FALL THROUGH */
case KD_TEXT1: /* switch to TEXT (known) mode */
/*
* If scp->mode is of graphics modes, we don't know which
* text/pixel mode to switch back to...
*/
if (scp->status & GRAPHICS_MODE)
return EINVAL;
s = spltty();
if ((error = sc_clean_up(scp))) {
splx(s);
return error;
}
#ifndef PC98
scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
splx(s);
/* no restore fonts & palette */
if (scp == scp->sc->cur_scp)
set_mode(scp);
sc_clear_screen(scp);
scp->status &= ~UNKNOWN_MODE;
#else /* PC98 */
scp->status &= ~UNKNOWN_MODE;
/* no restore fonts & palette */
if (scp == scp->sc->cur_scp)
set_mode(scp);
sc_clear_screen(scp);
splx(s);
#endif /* PC98 */
return 0;
#ifdef SC_PIXEL_MODE
case KD_PIXEL: /* pixel (raster) display */
if (!(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
return EINVAL;
if (scp->status & GRAPHICS_MODE)
return sc_set_pixel_mode(scp, tp, scp->xsize, scp->ysize,
scp->font_size);
s = spltty();
if ((error = sc_clean_up(scp))) {
splx(s);
return error;
}
scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
splx(s);
if (scp == scp->sc->cur_scp) {
set_mode(scp);
#ifndef SC_NO_PALETTE_LOADING
load_palette(adp, scp->sc->palette);
#endif
}
sc_clear_screen(scp);
scp->status &= ~UNKNOWN_MODE;
return 0;
#endif /* SC_PIXEL_MODE */
case KD_GRAPHICS: /* switch to GRAPHICS (unknown) mode */
s = spltty();
if ((error = sc_clean_up(scp))) {
splx(s);
return error;
}
scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
splx(s);
#ifdef PC98
if (scp == scp->sc->cur_scp)
set_mode(scp);
#endif
return 0;
default:
return EINVAL;
}
/* NOT REACHED */
#ifdef SC_PIXEL_MODE
case KDRASTER: /* set pixel (raster) display mode */
if (ISUNKNOWNSC(scp) || ISTEXTSC(scp))
return ENODEV;
return sc_set_pixel_mode(scp, tp, ((int *)data)[0], ((int *)data)[1],
((int *)data)[2]);
#endif /* SC_PIXEL_MODE */
case KDGETMODE: /* get current mode of this (virtual) console */
/*
* From the user program's point of view, KD_PIXEL is the same
* as KD_TEXT...
*/
*data = ISGRAPHSC(scp) ? KD_GRAPHICS : KD_TEXT;
return 0;
case KDSBORDER: /* set border color of this (virtual) console */
scp->border = *data;
if (scp == scp->sc->cur_scp)
sc_set_border(scp, scp->border);
return 0;
}
return ENOIOCTL;
}
static LIST_HEAD(, sc_renderer) sc_rndr_list =
LIST_HEAD_INITIALIZER(sc_rndr_list);
int
sc_render_add(sc_renderer_t *rndr)
{
LIST_INSERT_HEAD(&sc_rndr_list, rndr, link);
return 0;
}
int
sc_render_remove(sc_renderer_t *rndr)
{
/*
LIST_REMOVE(rndr, link);
*/
return EBUSY; /* XXX */
}
sc_rndr_sw_t
*sc_render_match(scr_stat *scp, char *name, int mode)
{
const sc_renderer_t **list;
const sc_renderer_t *p;
if (!LIST_EMPTY(&sc_rndr_list)) {
LIST_FOREACH(p, &sc_rndr_list, link) {
if ((strcmp(p->name, name) == 0)
&& (mode == p->mode)) {
scp->status &=
~(VR_CURSOR_ON | VR_CURSOR_BLINK);
return p->rndrsw;
}
}
} else {
SET_FOREACH(list, scrndr_set) {
p = *list;
if ((strcmp(p->name, name) == 0)
&& (mode == p->mode)) {
scp->status &=
~(VR_CURSOR_ON | VR_CURSOR_BLINK);
return p->rndrsw;
}
}
}
return NULL;
}
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