static int linux_init(struct aa_context *context, int mode)
{
int i;
struct sigaction siga;
if (!(mode & AA_SENDRELEASE))
return 0;
if (!rawmode_init())
return 0;
#ifdef SIGWINCH
signal(SIGWINCH, handler);
#endif
#ifdef GPM_MOUSEDRIVER
aa_recommendlowmouse("gpm");
#endif
allow_switch(1);
atexit(rawmode_exit);
for (i = 0; i < (int) sizeof(sig2catch); i++) {
siga.sa_handler = exithandler;
siga.sa_flags = 0;
/*zero_sa_mask(&(siga.sa_mask)); */
memset(&siga.sa_mask, 0, sizeof(sigset_t));
sigaction((int) sig2catch[i], &siga, old_signal_handler + i);
}
return 1;
}
void set_vc_screen_page(int page)
{
WRITE_BYTE(BIOS_CURRENT_SCREEN_PAGE, page);
/* okay, if we have the current console, and video ram is mapped.
* this has to be "atomic," or there is a "race condition": the
* user may change consoles between our check and our remapping
*/
forbid_switch();
if (SCR_STATE.mapped) /* should I check for foreground VC instead? */
get_video_ram(WAIT);
allow_switch();
}
/* this puts the VC under process control */
void set_process_control(void)
{
struct vt_mode vt_mode;
struct sigaction sa;
vt_mode.mode = VT_PROCESS;
vt_mode.waitv = 0;
vt_mode.relsig = SIG_RELEASE;
vt_mode.acqsig = SIG_ACQUIRE;
vt_mode.frsig = 0;
SCR_STATE.vt_requested = 0; /* a switch has not been attempted yet */
allow_switch();
/* NEWSETQSIG (SIG_RELEASE, release_vt); */
/* NEWSETQSIG (SIG_ACQUIRE, acquire_vt); */
if (do_ioctl(console_fd, VT_SETMODE, (int) &vt_mode))
debug_vid("initial VT_SETMODE failed!\n");
debug_vid("VID: Set process control\n");
}
static int console_post_init(void)
{
int kdmode;
set_vc_screen_page();
set_process_control();
k_printf("KBD: Taking mouse control\n"); /* Actually only in KD_GRAPHICS... */
/* Some escape sequences don't work in KD_GRAPHICS... */
kdmode = config.vga? KD_GRAPHICS: KD_TEXT;
ioctl(console_fd, KDSETMODE, kdmode);
/* Clear the Linux console screen. The console recognizes these codes:
* \033[?25h = show cursor.
* \033[0m = reset color.
* \033[H = Move cursor to upper-left corner of screen.
* \033[2J = Clear screen.
*/
if (!config.vga) {
int co, li;
gettermcap(0, &co, &li);
fprintf(stdout,"\033[?25h\033[0m\033[H\033[2J");
vga_emu_setmode(config.cardtype == CARD_MDA ? 7 : 3, co, li);
}
scr_state.mapped = 0;
allow_switch();
/*
Switch to dosemu VT if config.forcevtswitch is set.
The idea of this action is that in case of config.console_video
dosemu need to work at active VT (at least at start) for accessing
video memory. So to be able to run dosemu for instance
through cron we need config option like forcevtswitch.
The action seems sensible only if config.console_video.
[email protected]
*/
if (config.force_vt_switch && !vc_active()) {
if (ioctl(console_fd, VT_ACTIVATE, scr_state.console_no)<0)
v_printf("VID: error VT switching %s\n", strerror(errno));
}
/* XXX - get this working correctly! */
#define OLD_SET_CONSOLE 1
#ifdef OLD_SET_CONSOLE
init_get_video_ram(WAIT);
scr_state.mapped = 1;
#endif
if (vc_active()) {
int other_no = (scr_state.console_no == 1 ? 2 : 1);
v_printf("VID: we're active, waiting...\n");
#ifndef OLD_SET_CONSOLE
init_get_video_ram(WAIT);
scr_state.mapped = 1;
#endif
if (!config.vga) {
ioctl(console_fd, VT_ACTIVATE, other_no);
/*
* Fake running signal_handler() engine to process release/acquire
* vt's.
*/
while(vc_active())
coopth_wait();
ioctl(console_fd, VT_ACTIVATE, scr_state.console_no);
while(!vc_active())
coopth_wait();
}
}
else
v_printf("VID: not active, going on\n");
allow_switch();
return 0;
}
