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0a036e525d
freebsd-dev/sys/dev/vt/vt_core.c
Aleksandr Rybalko 0a036e525d Enable mouse support for terminal clients (like dialog(1)). 
Sponsored by:	The FreeBSD Foundation
2013-12-19 15:31:20 +00:00

1914 lines
44 KiB
C
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/*-
* Copyright (c) 2009, 2013 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Ed Schouten under sponsorship from the
* FreeBSD Foundation.
*
* Portions of this software were developed by Oleksandr Rybalko
* under sponsorship from the FreeBSD Foundation.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_compat.h"
#include <sys/param.h>
#include <sys/consio.h>
#include <sys/eventhandler.h>
#include <sys/fbio.h>
#include <sys/kbio.h>
#include <sys/kdb.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/reboot.h>
#include <sys/systm.h>
#include <sys/terminal.h>
#include <dev/kbd/kbdreg.h>
#include <dev/vt/vt.h>
#if defined(__i386__) || defined(__amd64__)
#include <machine/psl.h>
#include <machine/frame.h>
#endif
static tc_bell_t vtterm_bell;
static tc_cursor_t vtterm_cursor;
static tc_putchar_t vtterm_putchar;
static tc_fill_t vtterm_fill;
static tc_copy_t vtterm_copy;
static tc_param_t vtterm_param;
static tc_done_t vtterm_done;
static tc_cnprobe_t vtterm_cnprobe;
static tc_cngetc_t vtterm_cngetc;
static tc_opened_t vtterm_opened;
static tc_ioctl_t vtterm_ioctl;
const struct terminal_class vt_termclass = {
.tc_bell = vtterm_bell,
.tc_cursor = vtterm_cursor,
.tc_putchar = vtterm_putchar,
.tc_fill = vtterm_fill,
.tc_copy = vtterm_copy,
.tc_param = vtterm_param,
.tc_done = vtterm_done,
.tc_cnprobe = vtterm_cnprobe,
.tc_cngetc = vtterm_cngetc,
.tc_opened = vtterm_opened,
.tc_ioctl = vtterm_ioctl,
};
/*
* Use a constant timer of 25 Hz to redraw the screen.
*
* XXX: In theory we should only fire up the timer when there is really
* activity. Unfortunately we cannot always start timers. We really
* don't want to process kernel messages synchronously, because it
* really slows down the system.
*/
#define VT_TIMERFREQ 25
/* Bell pitch/duration. */
#define VT_BELLDURATION ((5 * hz + 99) / 100)
#define VT_BELLPITCH 800
#define VT_LOCK(vd) mtx_lock(&(vd)->vd_lock)
#define VT_UNLOCK(vd) mtx_unlock(&(vd)->vd_lock)
#define VT_UNIT(vw) ((vw)->vw_device->vd_unit * VT_MAXWINDOWS + \
(vw)->vw_number)
/* XXX while syscons is here. */
int sc_txtmouse_no_retrace_wait;
static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD, 0, "Newcons parameters");
VT_SYSCTL_INT(enable_altgr, 0, "Enable AltGr key (Do not assume R.Alt as Alt)");
VT_SYSCTL_INT(debug, 0, "Newcons debug level");
VT_SYSCTL_INT(deadtimer, 15, "Time to wait busy process in VT_PROCESS mode");
VT_SYSCTL_INT(suspendswitch, 1, "Switch to VT0 before suspend");
static unsigned int vt_unit = 0;
static MALLOC_DEFINE(M_VT, "vt", "vt device");
struct vt_device *main_vd = NULL;
/* Boot logo. */
extern unsigned int vt_logo_width;
extern unsigned int vt_logo_height;
extern unsigned int vt_logo_depth;
extern unsigned char vt_logo_image[];
/* Font. */
extern struct vt_font vt_font_default;
#ifndef SC_NO_CUTPASTE
extern struct mouse_cursor vt_default_mouse_pointer;
#endif
static int signal_vt_rel(struct vt_window *);
static int signal_vt_acq(struct vt_window *);
static int finish_vt_rel(struct vt_window *, int, int *);
static int finish_vt_acq(struct vt_window *);
static int vt_window_switch(struct vt_window *);
static int vt_late_window_switch(struct vt_window *);
static int vt_proc_alive(struct vt_window *);
static void vt_resize(struct vt_device *);
static void
vt_switch_timer(void *arg)
{
vt_late_window_switch((struct vt_window *)arg);
}
static int
vt_window_preswitch(struct vt_window *vw, struct vt_window *curvw)
{
DPRINTF(40, "%s\n", __func__);
curvw->vw_switch_to = vw;
/* Set timer to allow switch in case when process hang. */
callout_reset(&vw->vw_proc_dead_timer, hz * vt_deadtimer,
vt_switch_timer, (void *)vw);
/* Notify process about vt switch attempt. */
DPRINTF(30, "%s: Notify process.\n", __func__);
signal_vt_rel(curvw);
return (0);
}
static int
vt_window_postswitch(struct vt_window *vw)
{
signal_vt_acq(vw);
return (0);
}
/* vt_late_window_switch will done VT switching for regular case. */
static int
vt_late_window_switch(struct vt_window *vw)
{
int ret;
callout_stop(&vw->vw_proc_dead_timer);
ret = vt_window_switch(vw);
if (ret)
return (ret);
/* Notify owner process about terminal availability. */
if (vw->vw_smode.mode == VT_PROCESS) {
ret = vt_window_postswitch(vw);
}
return (ret);
}
/* Switch window. */
static int
vt_proc_window_switch(struct vt_window *vw)
{
struct vt_window *curvw;
struct vt_device *vd;
int ret;
if (vw->vw_flags & VWF_VTYLOCK)
return (EBUSY);
vd = vw->vw_device;
curvw = vd->vd_curwindow;
/* Ask current process permitions to switch away. */
if (curvw->vw_smode.mode == VT_PROCESS) {
DPRINTF(30, "%s: VT_PROCESS ", __func__);
if (vt_proc_alive(curvw) == FALSE) {
DPRINTF(30, "Dead. Cleaning.");
/* Dead */
} else {
DPRINTF(30, "%s: Signaling process.\n", __func__);
/* Alive, try to ask him. */
ret = vt_window_preswitch(vw, curvw);
/* Wait for process answer or timeout. */
return (ret);
}
DPRINTF(30, "\n");
}
ret = vt_late_window_switch(vw);
return (ret);
}
/* Switch window ignoring process locking. */
static int
vt_window_switch(struct vt_window *vw)
{
struct vt_device *vd = vw->vw_device;
struct vt_window *curvw = vd->vd_curwindow;
keyboard_t *kbd;
VT_LOCK(vd);
if (curvw == vw) {
/* Nothing to do. */
VT_UNLOCK(vd);
return (0);
}
if (!(vw->vw_flags & (VWF_OPENED|VWF_CONSOLE))) {
VT_UNLOCK(vd);
return (EINVAL);
}
vd->vd_curwindow = vw;
vd->vd_flags |= VDF_INVALID;
cv_broadcast(&vd->vd_winswitch);
VT_UNLOCK(vd);
if (vd->vd_driver->vd_postswitch)
vd->vd_driver->vd_postswitch(vd);
/* Restore per-window keyboard mode. */
mtx_lock(&Giant);
kbd = kbd_get_keyboard(vd->vd_keyboard);
if (kbd != NULL) {
kbdd_ioctl(kbd, KDSKBMODE, (void *)&vw->vw_kbdmode);
}
mtx_unlock(&Giant);
DPRINTF(10, "%s(ttyv%d) done\n", __func__, vw->vw_number);
return (0);
}
static inline void
vt_termsize(struct vt_device *vd, struct vt_font *vf, term_pos_t *size)
{
size->tp_row = vd->vd_height;
size->tp_col = vd->vd_width;
if (vf != NULL) {
size->tp_row /= vf->vf_height;
size->tp_col /= vf->vf_width;
}
}
static inline void
vt_winsize(struct vt_device *vd, struct vt_font *vf, struct winsize *size)
{
size->ws_row = size->ws_ypixel = vd->vd_height;
size->ws_col = size->ws_xpixel = vd->vd_width;
if (vf != NULL) {
size->ws_row /= vf->vf_height;
size->ws_col /= vf->vf_width;
}
}
static void
vt_scroll(struct vt_window *vw, int offset, int whence)
{
int diff;
term_pos_t size;
if ((vw->vw_flags & VWF_SCROLL) == 0)
return;
vt_termsize(vw->vw_device, vw->vw_font, &size);
diff = vthistory_seek(&vw->vw_buf, offset, whence);
/*
* Offset changed, please update Nth lines on sceen.
* +N - Nth lines at top;
* -N - Nth lines at bottom.
*/
if (diff < -size.tp_row || diff > size.tp_row) {
vw->vw_device->vd_flags |= VDF_INVALID;
return;
}
vw->vw_device->vd_flags |= VDF_INVALID; /*XXX*/
}
static int
vt_machine_kbdevent(int c)
{
switch (c) {
case SPCLKEY | DBG:
kdb_enter(KDB_WHY_BREAK, "manual escape to debugger");
return (1);
case SPCLKEY | RBT:
/* XXX: Make this configurable! */
shutdown_nice(0);
return (1);
case SPCLKEY | HALT:
shutdown_nice(RB_HALT);
return (1);
case SPCLKEY | PDWN:
shutdown_nice(RB_HALT|RB_POWEROFF);
return (1);
};
return (0);
}
static void
vt_scrollmode_kbdevent(struct vt_window *vw, int c, int console)
{
struct vt_device *vd;
term_pos_t size;
vd = vw->vw_device;
/* Only special keys handled in ScrollLock mode */
if ((c & SPCLKEY) == 0)
return;
c &= ~SPCLKEY;
if (console == 0) {
if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) {
vw = vd->vd_windows[c - F_SCR];
if (vw != NULL)
vt_proc_window_switch(vw);
return;
}
VT_LOCK(vd);
}
switch (c) {
case SLK: {
/* Turn scrolling off. */
vt_scroll(vw, 0, VHS_END);
VTBUF_SLCK_DISABLE(&vw->vw_buf);
vw->vw_flags &= ~VWF_SCROLL;
break;
}
case FKEY | F(49): /* Home key. */
vt_scroll(vw, 0, VHS_SET);
break;
case FKEY | F(50): /* Arrow up. */
vt_scroll(vw, -1, VHS_CUR);
break;
case FKEY | F(51): /* Page up. */
vt_termsize(vd, vw->vw_font, &size);
vt_scroll(vw, -size.tp_row, VHS_CUR);
break;
case FKEY | F(57): /* End key. */
vt_scroll(vw, 0, VHS_END);
break;
case FKEY | F(58): /* Arrow down. */
vt_scroll(vw, 1, VHS_CUR);
break;
case FKEY | F(59): /* Page down. */
vt_termsize(vd, vw->vw_font, &size);
vt_scroll(vw, size.tp_row, VHS_CUR);
break;
}
if (console == 0)
VT_UNLOCK(vd);
}
static int
vt_processkey(keyboard_t *kbd, struct vt_device *vd, int c)
{
struct vt_window *vw = vd->vd_curwindow;
int state = 0;
#if VT_ALT_TO_ESC_HACK
if (c & RELKEY) {
switch (c & ~RELKEY) {
case (SPCLKEY | RALT):
if (vt_enable_altgr != 0)
break;
case (SPCLKEY | LALT):
vd->vd_kbstate &= ~ALKED;
}
/* Other keys ignored for RELKEY event. */
return (0);
} else {
switch (c & ~RELKEY) {
case (SPCLKEY | RALT):
case (SPCLKEY | LALT):
vd->vd_kbstate |= ALKED;
}
}
#else
if (c & RELKEY)
/* Other keys ignored for RELKEY event. */
return (0);
#endif
if (vt_machine_kbdevent(c))
return (0);
if (vw->vw_flags & VWF_SCROLL) {
vt_scrollmode_kbdevent(vw, c, 0/* Not a console */);
/* Scroll mode keys handled, nothing to do more. */
return (0);
}
if (c & SPCLKEY) {
c &= ~SPCLKEY;
if (c >= F_SCR && c <= MIN(L_SCR, F_SCR + VT_MAXWINDOWS - 1)) {
vw = vd->vd_windows[c - F_SCR];
if (vw != NULL)
vt_proc_window_switch(vw);
return (0);
}
switch (c) {
case SLK: {
kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state);
VT_LOCK(vd);
if (state & SLKED) {
/* Turn scrolling on. */
vw->vw_flags |= VWF_SCROLL;
VTBUF_SLCK_ENABLE(&vw->vw_buf);
} else {
/* Turn scrolling off. */
vw->vw_flags &= ~VWF_SCROLL;
VTBUF_SLCK_DISABLE(&vw->vw_buf);
vt_scroll(vw, 0, VHS_END);
}
VT_UNLOCK(vd);
break;
}
case FKEY | F(1): case FKEY | F(2): case FKEY | F(3):
case FKEY | F(4): case FKEY | F(5): case FKEY | F(6):
case FKEY | F(7): case FKEY | F(8): case FKEY | F(9):
case FKEY | F(10): case FKEY | F(11): case FKEY | F(12):
/* F1 through F12 keys. */
terminal_input_special(vw->vw_terminal,
TKEY_F1 + c - (FKEY | F(1)));
break;
case FKEY | F(49): /* Home key. */
terminal_input_special(vw->vw_terminal, TKEY_HOME);
break;
case FKEY | F(50): /* Arrow up. */
terminal_input_special(vw->vw_terminal, TKEY_UP);
break;
case FKEY | F(51): /* Page up. */
terminal_input_special(vw->vw_terminal, TKEY_PAGE_UP);
break;
case FKEY | F(53): /* Arrow left. */
terminal_input_special(vw->vw_terminal, TKEY_LEFT);
break;
case FKEY | F(55): /* Arrow right. */
terminal_input_special(vw->vw_terminal, TKEY_RIGHT);
break;
case FKEY | F(57): /* End key. */
terminal_input_special(vw->vw_terminal, TKEY_END);
break;
case FKEY | F(58): /* Arrow down. */
terminal_input_special(vw->vw_terminal, TKEY_DOWN);
break;
case FKEY | F(59): /* Page down. */
terminal_input_special(vw->vw_terminal, TKEY_PAGE_DOWN);
break;
case FKEY | F(60): /* Insert key. */
terminal_input_special(vw->vw_terminal, TKEY_INSERT);
break;
case FKEY | F(61): /* Delete key. */
terminal_input_special(vw->vw_terminal, TKEY_DELETE);
break;
}
} else if (KEYFLAGS(c) == 0) {
/* Don't do UTF-8 conversion when doing raw mode. */
if (vw->vw_kbdmode == K_XLATE) {
#if VT_ALT_TO_ESC_HACK
if (vd->vd_kbstate & ALKED) {
/*
* Prepend ESC sequence if one of ALT keys down.
*/
terminal_input_char(vw->vw_terminal, 0x1b);
}
#endif
terminal_input_char(vw->vw_terminal, KEYCHAR(c));
} else
terminal_input_raw(vw->vw_terminal, c);
}
return (0);
}
static int
vt_kbdevent(keyboard_t *kbd, int event, void *arg)
{
struct vt_device *vd = arg;
int c;
switch (event) {
case KBDIO_KEYINPUT:
break;
case KBDIO_UNLOADING:
mtx_lock(&Giant);
vd->vd_keyboard = -1;
kbd_release(kbd, (void *)&vd->vd_keyboard);
mtx_unlock(&Giant);
return (0);
default:
return (EINVAL);
}
while ((c = kbdd_read_char(kbd, 0)) != NOKEY)
vt_processkey(kbd, vd, c);
return (0);
}
static int
vt_allocate_keyboard(struct vt_device *vd)
{
int idx0, idx;
keyboard_t *k0, *k;
keyboard_info_t ki;
idx0 = kbd_allocate("kbdmux", -1, (void *)&vd->vd_keyboard,
vt_kbdevent, vd);
/* XXX: kb_token lost */
vd->vd_keyboard = idx0;
if (idx0 != -1) {
DPRINTF(20, "%s: kbdmux allocated, idx = %d\n", __func__, idx0);
k0 = kbd_get_keyboard(idx0);
for (idx = kbd_find_keyboard2("*", -1, 0);
idx != -1;
idx = kbd_find_keyboard2("*", -1, idx + 1)) {
k = kbd_get_keyboard(idx);
if (idx == idx0 || KBD_IS_BUSY(k))
continue;
bzero(&ki, sizeof(ki));
strcpy(ki.kb_name, k->kb_name);
ki.kb_unit = k->kb_unit;
kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki);
}
} else {
DPRINTF(20, "%s: no kbdmux allocated\n", __func__);
idx0 = kbd_allocate("*", -1, (void *)&vd->vd_keyboard,
vt_kbdevent, vd);
}
DPRINTF(20, "%s: vd_keyboard = %d\n", __func__, vd->vd_keyboard);
return (idx0);
}
static void
vtterm_bell(struct terminal *tm)
{
sysbeep(1193182 / VT_BELLPITCH, VT_BELLDURATION);
}
static void
vtterm_cursor(struct terminal *tm, const term_pos_t *p)
{
struct vt_window *vw = tm->tm_softc;
vtbuf_cursor_position(&vw->vw_buf, p);
}
static void
vtterm_putchar(struct terminal *tm, const term_pos_t *p, term_char_t c)
{
struct vt_window *vw = tm->tm_softc;
vtbuf_putchar(&vw->vw_buf, p, c);
}
static void
vtterm_fill(struct terminal *tm, const term_rect_t *r, term_char_t c)
{
struct vt_window *vw = tm->tm_softc;
vtbuf_fill_locked(&vw->vw_buf, r, c);
}
static void
vtterm_copy(struct terminal *tm, const term_rect_t *r,
const term_pos_t *p)
{
struct vt_window *vw = tm->tm_softc;
vtbuf_copy(&vw->vw_buf, r, p);
}
static void
vtterm_param(struct terminal *tm, int cmd, unsigned int arg)
{
struct vt_window *vw = tm->tm_softc;
switch (cmd) {
case TP_SHOWCURSOR:
vtbuf_cursor_visibility(&vw->vw_buf, arg);
break;
}
}
static inline void
vt_determine_colors(term_char_t c, int cursor,
term_color_t *fg, term_color_t *bg)
{
*fg = TCHAR_FGCOLOR(c);
if (TCHAR_FORMAT(c) & TF_BOLD)
*fg = TCOLOR_LIGHT(*fg);
*bg = TCHAR_BGCOLOR(c);
if (TCHAR_FORMAT(c) & TF_REVERSE) {
term_color_t tmp;
tmp = *fg;
*fg = *bg;
*bg = tmp;
}
if (cursor) {
*fg = *bg;
*bg = TC_WHITE;
}
}
static void
vt_bitblt_char(struct vt_device *vd, struct vt_font *vf, term_char_t c,
int iscursor, unsigned int row, unsigned int col)
{
term_color_t fg, bg;
vt_determine_colors(c, iscursor, &fg, &bg);
if (vf != NULL) {
const uint8_t *src;
vt_axis_t top, left;
src = vtfont_lookup(vf, c);
/*
* Align the terminal to the centre of the screen.
* Fonts may not always be able to fill the entire
* screen.
*/
top = row * vf->vf_height + vd->vd_offset.tp_row;
left = col * vf->vf_width + vd->vd_offset.tp_col;
vd->vd_driver->vd_bitbltchr(vd, src, NULL, 0, top, left,
vf->vf_width, vf->vf_height, fg, bg);
} else {
vd->vd_driver->vd_putchar(vd, TCHAR_CHARACTER(c),
row, col, fg, bg);
}
}
static void
vt_flush(struct vt_device *vd)
{
struct vt_window *vw = vd->vd_curwindow;
struct vt_font *vf = vw->vw_font;
struct vt_bufmask tmask;
unsigned int row, col;
term_rect_t tarea;
term_pos_t size;
term_char_t *r;
#ifndef SC_NO_CUTPASTE
struct mouse_cursor *m;
int bpl, h, w;
#endif
if (vd->vd_flags & VDF_SPLASH || vw->vw_flags & VWF_BUSY)
return;
vtbuf_undirty(&vw->vw_buf, &tarea, &tmask);
vt_termsize(vd, vf, &size);
/* Force a full redraw when the screen contents are invalid. */
if (vd->vd_flags & VDF_INVALID) {
tarea.tr_begin.tp_row = tarea.tr_begin.tp_col = 0;
tarea.tr_end = size;
tmask.vbm_row = tmask.vbm_col = VBM_DIRTY;
vd->vd_flags &= ~VDF_INVALID;
}
#ifndef SC_NO_CUTPASTE
if ((vw->vw_flags & VWF_MOUSE_HIDE) == 0) {
/* Mark last mouse position as dirty to erase. */
vtbuf_mouse_cursor_position(&vw->vw_buf, vd->vd_mdirtyx,
vd->vd_mdirtyy);
}
#endif
for (row = tarea.tr_begin.tp_row; row < tarea.tr_end.tp_row; row++) {
if (!VTBUF_DIRTYROW(&tmask, row))
continue;
r = VTBUF_GET_ROW(&vw->vw_buf, row);
for (col = tarea.tr_begin.tp_col;
col < tarea.tr_end.tp_col; col++) {
if (!VTBUF_DIRTYCOL(&tmask, col))
continue;
vt_bitblt_char(vd, vf, r[col],
VTBUF_ISCURSOR(&vw->vw_buf, row, col), row, col);
}
}
#ifndef SC_NO_CUTPASTE
/* Mouse disabled. */
if (vw->vw_flags & VWF_MOUSE_HIDE)
return;
/* No mouse for DDB. */
if (kdb_active || panicstr != NULL)
return;
if ((vd->vd_flags & (VDF_MOUSECURSOR|VDF_TEXTMODE)) ==
VDF_MOUSECURSOR) {
m = &vt_default_mouse_pointer;
bpl = (m->w + 7) >> 3; /* Bytes per sorce line. */
w = m->w;
h = m->h;
if ((vd->vd_mx + m->w) > (size.tp_col * vf->vf_width))
w = (size.tp_col * vf->vf_width) - vd->vd_mx - 1;
if ((vd->vd_my + m->h) > (size.tp_row * vf->vf_height))
h = (size.tp_row * vf->vf_height) - vd->vd_my - 1;
vd->vd_driver->vd_bitbltchr(vd, m->map, m->mask, bpl,
vd->vd_offset.tp_row + vd->vd_my,
vd->vd_offset.tp_col + vd->vd_mx,
w, h, TC_WHITE, TC_BLACK);
/* Save point of last mouse cursor to erase it later. */
vd->vd_mdirtyx = vd->vd_mx / vf->vf_width;
vd->vd_mdirtyy = vd->vd_my / vf->vf_height;
}
#endif
}
static void
vt_timer(void *arg)
{
struct vt_device *vd;
vd = arg;
/* Update screen if required. */
vt_flush(vd);
/* Schedule for next update. */
callout_schedule(&vd->vd_timer, hz / VT_TIMERFREQ);
}
static void
vtterm_done(struct terminal *tm)
{
struct vt_window *vw = tm->tm_softc;
struct vt_device *vd = vw->vw_device;
if (kdb_active || panicstr != NULL) {
/* Switch to the debugger. */
if (vd->vd_curwindow != vw) {
vd->vd_curwindow = vw;
vd->vd_flags |= VDF_INVALID;
if (vd->vd_driver->vd_postswitch)
vd->vd_driver->vd_postswitch(vd);
}
vd->vd_flags &= ~VDF_SPLASH;
vt_flush(vd);
} else if (!(vd->vd_flags & VDF_ASYNC)) {
vt_flush(vd);
}
}
#ifdef DEV_SPLASH
static void
vtterm_splash(struct vt_device *vd)
{
vt_axis_t top, left;
/* Display a nice boot splash. */
if (!(vd->vd_flags & VDF_TEXTMODE) && (boothowto & RB_MUTE)) {
top = (vd->vd_height - vt_logo_height) / 2;
left = (vd->vd_width - vt_logo_width) / 2;
switch (vt_logo_depth) {
case 1:
/* XXX: Unhardcode colors! */
vd->vd_driver->vd_bitbltchr(vd, vt_logo_image, NULL, 0,
top, left, vt_logo_width, vt_logo_height, 0xf, 0x0);
}
vd->vd_flags |= VDF_SPLASH;
}
}
#endif
static void
vtterm_cnprobe(struct terminal *tm, struct consdev *cp)
{
struct vt_window *vw = tm->tm_softc;
struct vt_device *vd = vw->vw_device;
struct winsize wsz;
if (vd->vd_flags & VDF_INITIALIZED)
/* Initialization already done. */
return;
cp->cn_pri = vd->vd_driver->vd_init(vd);
if (cp->cn_pri == CN_DEAD) {
vd->vd_flags |= VDF_DEAD;
return;
}
/* Initialize any early-boot keyboard drivers */
kbd_configure(KB_CONF_PROBE_ONLY);
vd->vd_unit = atomic_fetchadd_int(&vt_unit, 1);
vd->vd_windows[VT_CONSWINDOW] = vw;
sprintf(cp->cn_name, "ttyv%r", VT_UNIT(vw));
if (!(vd->vd_flags & VDF_TEXTMODE))
vw->vw_font = vtfont_ref(&vt_font_default);
vtbuf_init_early(&vw->vw_buf);
vt_winsize(vd, vw->vw_font, &wsz);
terminal_set_winsize(tm, &wsz);
#ifdef DEV_SPLASH
vtterm_splash(vd);
#endif
vd->vd_flags |= VDF_INITIALIZED;
main_vd = vd;
}
static int
vtterm_cngetc(struct terminal *tm)
{
struct vt_window *vw = tm->tm_softc;
struct vt_device *vd = vw->vw_device;
keyboard_t *kbd;
int state;
u_int c;
if (vw->vw_kbdsq && *vw->vw_kbdsq)
return (*vw->vw_kbdsq++);
state = 0;
/* Make sure the splash screen is not there. */
if (vd->vd_flags & VDF_SPLASH) {
/* Remove splash */
vd->vd_flags &= ~VDF_SPLASH;
/* Mark screen as invalid to force update */
vd->vd_flags |= VDF_INVALID;
vt_flush(vd);
}
/* Stripped down keyboard handler. */
kbd = kbd_get_keyboard(vd->vd_keyboard);
if (kbd == NULL)
return (-1);
/* Force keyboard input mode to K_XLATE */
c = K_XLATE;
kbdd_ioctl(kbd, KDSKBMODE, (void *)&c);
/* Switch the keyboard to polling to make it work here. */
kbdd_poll(kbd, TRUE);
c = kbdd_read_char(kbd, 0);
kbdd_poll(kbd, FALSE);
if (c & RELKEY)
return (-1);
if (vw->vw_flags & VWF_SCROLL) {
vt_scrollmode_kbdevent(vw, c, 1/* Console mode */);
vt_flush(vd);
return (-1);
}
/* Stripped down handling of vt_kbdevent(), without locking, etc. */
if (c & SPCLKEY) {
switch (c) {
case SPCLKEY | SLK:
kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state);
if (state & SLKED) {
/* Turn scrolling on. */
vw->vw_flags |= VWF_SCROLL;
VTBUF_SLCK_ENABLE(&vw->vw_buf);
} else {
/* Turn scrolling off. */
vt_scroll(vw, 0, VHS_END);
vw->vw_flags &= ~VWF_SCROLL;
VTBUF_SLCK_DISABLE(&vw->vw_buf);
}
break;
/* XXX: KDB can handle history. */
case SPCLKEY | FKEY | F(50): /* Arrow up. */
vw->vw_kbdsq = "\x1b[A";
break;
case SPCLKEY | FKEY | F(58): /* Arrow down. */
vw->vw_kbdsq = "\x1b[B";
break;
case SPCLKEY | FKEY | F(55): /* Arrow right. */
vw->vw_kbdsq = "\x1b[C";
break;
case SPCLKEY | FKEY | F(53): /* Arrow left. */
vw->vw_kbdsq = "\x1b[D";
break;
}
/* Force refresh to make scrollback work. */
vt_flush(vd);
} else if (KEYFLAGS(c) == 0) {
return (KEYCHAR(c));
}
if (vw->vw_kbdsq && *vw->vw_kbdsq)
return (*vw->vw_kbdsq++);
return (-1);
}
static void
vtterm_opened(struct terminal *tm, int opened)
{
struct vt_window *vw = tm->tm_softc;
struct vt_device *vd = vw->vw_device;
VT_LOCK(vd);
vd->vd_flags &= ~VDF_SPLASH;
if (opened)
vw->vw_flags |= VWF_OPENED;
else {
vw->vw_flags &= ~VWF_OPENED;
/* TODO: finish ACQ/REL */
}
VT_UNLOCK(vd);
}
static int
vt_change_font(struct vt_window *vw, struct vt_font *vf)
{
struct vt_device *vd = vw->vw_device;
struct terminal *tm = vw->vw_terminal;
term_pos_t size;
struct winsize wsz;
/*
* Changing fonts.
*
* Changing fonts is a little tricky. We must prevent
* simultaneous access to the device, so we must stop
* the display timer and the terminal from accessing.
* We need to switch fonts and grow our screen buffer.
*
* XXX: Right now the code uses terminal_mute() to
* prevent data from reaching the console driver while
* resizing the screen buffer. This isn't elegant...
*/
VT_LOCK(vd);
if (vw->vw_flags & VWF_BUSY) {
/* Another process is changing the font. */
VT_UNLOCK(vd);
return (EBUSY);
}
if (vw->vw_font == NULL) {
/* Our device doesn't need fonts. */
VT_UNLOCK(vd);
return (ENOTTY);
}
vw->vw_flags |= VWF_BUSY;
VT_UNLOCK(vd);
vt_termsize(vd, vf, &size);
vt_winsize(vd, vf, &wsz);
/* Save offset to font aligned area. */
vd->vd_offset.tp_col = (vd->vd_width % vf->vf_width) / 2;
vd->vd_offset.tp_row = (vd->vd_height % vf->vf_height) / 2;
/* Grow the screen buffer and terminal. */
terminal_mute(tm, 1);
vtbuf_grow(&vw->vw_buf, &size, vw->vw_buf.vb_history_size);
terminal_set_winsize_blank(tm, &wsz, 0);
terminal_mute(tm, 0);
/* Actually apply the font to the current window. */
VT_LOCK(vd);
vtfont_unref(vw->vw_font);
vw->vw_font = vtfont_ref(vf);
/* Force a full redraw the next timer tick. */
if (vd->vd_curwindow == vw)
vd->vd_flags |= VDF_INVALID;
vw->vw_flags &= ~VWF_BUSY;
VT_UNLOCK(vd);
return (0);
}
static int
vt_proc_alive(struct vt_window *vw)
{
struct proc *p;
if (vw->vw_smode.mode != VT_PROCESS)
return (FALSE);
if (vw->vw_proc) {
if ((p = pfind(vw->vw_pid)) != NULL)
PROC_UNLOCK(p);
if (vw->vw_proc == p)
return (TRUE);
vw->vw_proc = NULL;
vw->vw_smode.mode = VT_AUTO;
DPRINTF(1, "vt controlling process %d died\n", vw->vw_pid);
vw->vw_pid = 0;
}
return (FALSE);
}
static int
signal_vt_rel(struct vt_window *vw)
{
if (vw->vw_smode.mode != VT_PROCESS)
return (FALSE);
if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) {
vw->vw_proc = NULL;
vw->vw_pid = 0;
return (TRUE);
}
vw->vw_flags |= VWF_SWWAIT_REL;
PROC_LOCK(vw->vw_proc);
kern_psignal(vw->vw_proc, vw->vw_smode.relsig);
PROC_UNLOCK(vw->vw_proc);
DPRINTF(1, "sending relsig to %d\n", vw->vw_pid);
return (TRUE);
}
static int
signal_vt_acq(struct vt_window *vw)
{
if (vw->vw_smode.mode != VT_PROCESS)
return (FALSE);
if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW])
cnavailable(vw->vw_terminal->consdev, FALSE);
if (vw->vw_proc == NULL || vt_proc_alive(vw) == FALSE) {
vw->vw_proc = NULL;
vw->vw_pid = 0;
return (TRUE);
}
vw->vw_flags |= VWF_SWWAIT_ACQ;
PROC_LOCK(vw->vw_proc);
kern_psignal(vw->vw_proc, vw->vw_smode.acqsig);
PROC_UNLOCK(vw->vw_proc);
DPRINTF(1, "sending acqsig to %d\n", vw->vw_pid);
return (TRUE);
}
static int
finish_vt_rel(struct vt_window *vw, int release, int *s)
{
if (vw->vw_flags & VWF_SWWAIT_REL) {
vw->vw_flags &= ~VWF_SWWAIT_REL;
if (release) {
callout_drain(&vw->vw_proc_dead_timer);
vt_late_window_switch(vw->vw_switch_to);
}
return (0);
}
return (EINVAL);
}
static int
finish_vt_acq(struct vt_window *vw)
{
if (vw->vw_flags & VWF_SWWAIT_ACQ) {
vw->vw_flags &= ~VWF_SWWAIT_ACQ;
return (0);
}
return (EINVAL);
}
#ifndef SC_NO_CUTPASTE
static void
vt_mouse_terminput_button(struct vt_device *vd, int button)
{
struct vt_window *vw;
struct vt_font *vf;
char mouseb[6] = "\x1B[M";
int i, x, y;
vw = vd->vd_curwindow;
vf = vw->vw_font;
/* Translate to char position. */
x = vd->vd_mx / vf->vf_width;
y = vd->vd_my / vf->vf_height;
/* Avoid overflow. */
x = MIN(x, 255 - '!');
y = MIN(y, 255 - '!');
mouseb[3] = ' ' + button;
mouseb[4] = '!' + x;
mouseb[5] = '!' + y;
for (i = 0; i < sizeof(mouseb); i++ )
terminal_input_char(vw->vw_terminal, mouseb[i]);
}
static void
vt_mouse_terminput(struct vt_device *vd, int type, int x, int y, int event,
int cnt)
{
switch (type) {
case MOUSE_BUTTON_EVENT:
if (cnt > 0) {
/* Mouse button pressed. */
if (event & MOUSE_BUTTON1DOWN)
vt_mouse_terminput_button(vd, 0);
if (event & MOUSE_BUTTON2DOWN)
vt_mouse_terminput_button(vd, 1);
if (event & MOUSE_BUTTON3DOWN)
vt_mouse_terminput_button(vd, 2);
} else {
/* Mouse button released. */
vt_mouse_terminput_button(vd, 3);
}
break;
#ifdef notyet
case MOUSE_MOTION_EVENT:
if (mouse->u.data.z < 0) {
/* Scroll up. */
sc_mouse_input_button(vd, 64);
} else if (mouse->u.data.z > 0) {
/* Scroll down. */
sc_mouse_input_button(vd, 65);
}
break;
#endif
}
}
void
vt_mouse_event(int type, int x, int y, int event, int cnt, int mlevel)
{
struct vt_device *vd;
struct vt_window *vw;
struct vt_font *vf;
term_pos_t size;
term_char_t *buf;
int i, len, mark;
vd = main_vd;
vw = vd->vd_curwindow;
vf = vw->vw_font;
mark = 0;
if (vw->vw_flags & VWF_MOUSE_HIDE)
return; /* Mouse disabled. */
if (vf == NULL) /* Text mode. */
return;
/*
* TODO: add flag about pointer position changed, to not redraw chars
* under mouse pointer when nothing changed.
*/
if (mlevel > 0)
vt_mouse_terminput(vd, type, x, y, event, cnt);
switch (type) {
case MOUSE_ACTION:
case MOUSE_MOTION_EVENT:
/* Movement */
x += vd->vd_mx;
y += vd->vd_my;
vt_termsize(vd, vf, &size);
/* Apply limits. */
x = MAX(x, 0);
y = MAX(y, 0);
x = MIN(x, (size.tp_col * vf->vf_width) - 1);
y = MIN(y, (size.tp_row * vf->vf_height) - 1);
vd->vd_mx = x;
vd->vd_my = y;
if ((vd->vd_mstate & MOUSE_BUTTON1DOWN) &&
(vtbuf_set_mark(&vw->vw_buf, VTB_MARK_MOVE,
vd->vd_mx / vf->vf_width,
vd->vd_my / vf->vf_height) == 1)) {
/*
* We have something marked to copy, so update pointer
* to window with selection.
*/
vd->vd_markedwin = vw;
}
return; /* Done */
case MOUSE_BUTTON_EVENT:
/* Buttons */
break;
default:
return; /* Done */
}
switch (event) {
case MOUSE_BUTTON1DOWN:
switch (cnt % 4) {
case 0: /* up */
mark = VTB_MARK_END;
break;
case 1: /* single click: start cut operation */
mark = VTB_MARK_START;
break;
case 2: /* double click: cut a word */
mark = VTB_MARK_WORD;
break;
case 3: /* triple click: cut a line */
mark = VTB_MARK_ROW;
break;
}
break;
case VT_MOUSE_PASTEBUTTON:
switch (cnt) {
case 0: /* up */
break;
default:
if (vd->vd_markedwin == NULL)
return;
/* Get current selecton size in bytes. */
len = vtbuf_get_marked_len(&vd->vd_markedwin->vw_buf);
if (len <= 0)
return;
buf = malloc(len, M_VT, M_WAITOK | M_ZERO);
/* Request cupy/paste buffer data, no more than `len' */
vtbuf_extract_marked(&vd->vd_markedwin->vw_buf, buf,
len);
len /= sizeof(term_char_t);
for (i = 0; i < len; i++ ) {
if (buf[i] == '\0')
continue;
terminal_input_char(vw->vw_terminal, buf[i]);
}
/* Done, so cleanup. */
free(buf, M_VT);
break;
}
return; /* Done */
case VT_MOUSE_EXTENDBUTTON:
switch (cnt) {
case 0: /* up */
if (!(vd->vd_mstate & MOUSE_BUTTON1DOWN))
mark = VTB_MARK_EXTEND;
else
mark = 0;
break;
default:
mark = VTB_MARK_EXTEND;
break;
}
break;
default:
return; /* Done */
}
/* Save buttons state. */
if (cnt > 0)
vd->vd_mstate |= event;
else
vd->vd_mstate &= ~event;
if (vtbuf_set_mark(&vw->vw_buf, mark, vd->vd_mx / vf->vf_width,
vd->vd_my / vf->vf_height) == 1) {
/*
* We have something marked to copy, so update pointer to
* window with selection.
*/
vd->vd_markedwin = vw;
}
}
void
vt_mouse_state(int show)
{
struct vt_device *vd;
struct vt_window *vw;
vd = main_vd;
vw = vd->vd_curwindow;
switch (show) {
case VT_MOUSE_HIDE:
vw->vw_flags |= VWF_MOUSE_HIDE;
break;
case VT_MOUSE_SHOW:
vw->vw_flags &= ~VWF_MOUSE_HIDE;
break;
}
}
#endif
static int
vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data,
struct thread *td)
{
struct vt_window *vw = tm->tm_softc;
struct vt_device *vd = vw->vw_device;
keyboard_t *kbd;
int error, i, s;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
int ival;
switch (cmd) {
case _IO('v', 4):
cmd = VT_RELDISP;
break;
case _IO('v', 5):
cmd = VT_ACTIVATE;
break;
case _IO('v', 6):
cmd = VT_WAITACTIVE;
break;
case _IO('K', 20):
cmd = KDSKBSTATE;
break;
case _IO('K', 67):
cmd = KDSETRAD;
break;
case _IO('K', 7):
cmd = KDSKBMODE;
break;
case _IO('K', 8):
cmd = KDMKTONE;
break;
case _IO('K', 63):
cmd = KIOCSOUND;
break;
case _IO('K', 66):
cmd = KDSETLED;
break;
case _IO('c', 110):
cmd = CONS_SETKBD;
break;
default:
goto skip_thunk;
}
ival = IOCPARM_IVAL(data);
data = (caddr_t)&ival;
skip_thunk:
#endif
switch (cmd) {
case KDSETRAD: /* set keyboard repeat & delay rates (old) */
if (*(int *)data & ~0x7f)
return (EINVAL);
case GIO_KEYMAP:
case PIO_KEYMAP:
case GIO_DEADKEYMAP:
case PIO_DEADKEYMAP:
case GETFKEY:
case SETFKEY:
case KDGKBINFO:
case KDGKBTYPE:
case KDSKBSTATE: /* set keyboard state (locks) */
case KDGKBSTATE: /* get keyboard state (locks) */
case KDGETREPEAT: /* get keyboard repeat & delay rates */
case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */
case KDSETLED: /* set keyboard LED status */
case KDGETLED: /* get keyboard LED status */
case KBADDKBD: /* add/remove keyboard to/from mux */
case KBRELKBD: {
error = 0;
mtx_lock(&Giant);
kbd = kbd_get_keyboard(vd->vd_keyboard);
if (kbd != NULL)
error = kbdd_ioctl(kbd, cmd, data);
mtx_unlock(&Giant);
if (error == ENOIOCTL) {
if (cmd == KDGKBTYPE) {
/* always return something? XXX */
*(int *)data = 0;
} else {
return (ENODEV);
}
}
return (error);
}
case KDGKBMODE: {
int mode = -1;
mtx_lock(&Giant);
kbd = kbd_get_keyboard(vd->vd_keyboard);
if (kbd != NULL) {
kbdd_ioctl(kbd, KDGKBMODE, (void *)&mode);
}
mtx_unlock(&Giant);
DPRINTF(20, "mode %d, vw_kbdmode %d\n", mode, vw->vw_kbdmode);
*(int *)data = mode;
return (0);
}
case KDSKBMODE: {
int mode;
mode = *(int *)data;
switch (mode) {
case K_XLATE:
case K_RAW:
case K_CODE:
vw->vw_kbdmode = mode;
if (vw == vd->vd_curwindow) {
keyboard_t *kbd;
error = 0;
mtx_lock(&Giant);
kbd = kbd_get_keyboard(vd->vd_keyboard);
if (kbd != NULL) {
error = kbdd_ioctl(kbd, KDSKBMODE,
(void *)&mode);
}
mtx_unlock(&Giant);
}
return (0);
default:
return (EINVAL);
}
}
case CONS_BLANKTIME:
/* XXX */
return (0);
case CONS_GET:
/* XXX */
*(int *)data = M_CG640x480;
return (0);
case CONS_GETINFO: {
vid_info_t *vi = (vid_info_t *)data;
vi->m_num = vd->vd_curwindow->vw_number + 1;
/* XXX: other fields! */
return (0);
}
case CONS_GETVERS:
*(int *)data = 0x200;
return (0);
case CONS_MODEINFO:
/* XXX */
return (0);
case CONS_MOUSECTL: {
mouse_info_t *mouse = (mouse_info_t*)data;
/*
* This has no effect on vt(4). We don't draw any mouse
* cursor. Just ignore MOUSE_HIDE and MOUSE_SHOW to
* prevent excessive errors. All the other commands
* should not be applied to individual TTYs, but only to
* consolectl.
*/
switch (mouse->operation) {
case MOUSE_HIDE:
vd->vd_flags &= ~VDF_MOUSECURSOR;
return (0);
case MOUSE_SHOW:
vd->vd_mx = vd->vd_width / 2;
vd->vd_my = vd->vd_height / 2;
vd->vd_flags |= VDF_MOUSECURSOR;
return (0);
default:
return (EINVAL);
}
}
case PIO_VFONT: {
struct vt_font *vf;
error = vtfont_load((void *)data, &vf);
if (error != 0)
return (error);
error = vt_change_font(vw, vf);
vtfont_unref(vf);
return (error);
}
case GIO_SCRNMAP: {
scrmap_t *sm = (scrmap_t *)data;
int i;
/* We don't have screen maps, so return a handcrafted one. */
for (i = 0; i < 256; i++)
sm->scrmap[i] = i;
return (0);
}
case KDSETMODE:
/* XXX */
return (0);
case KDENABIO: /* allow io operations */
error = priv_check(td, PRIV_IO);
if (error != 0)
return (error);
error = securelevel_gt(td->td_ucred, 0);
if (error != 0)
return (error);
#if defined(__i386__)
td->td_frame->tf_eflags |= PSL_IOPL;
#elif defined(__amd64__)
td->td_frame->tf_rflags |= PSL_IOPL;
#endif
return (0);
case KDDISABIO: /* disallow io operations (default) */
#if defined(__i386__)
td->td_frame->tf_eflags &= ~PSL_IOPL;
#elif defined(__amd64__)
td->td_frame->tf_rflags &= ~PSL_IOPL;
#endif
return (0);
case KDMKTONE: /* sound the bell */
/* TODO */
return (0);
case KIOCSOUND: /* make tone (*data) hz */
/* TODO */
return (0);
case CONS_SETKBD: /* set the new keyboard */
mtx_lock(&Giant);
error = 0;
if (vd->vd_keyboard != *(int *)data) {
kbd = kbd_get_keyboard(*(int *)data);
if (kbd == NULL) {
mtx_unlock(&Giant);
return (EINVAL);
}
i = kbd_allocate(kbd->kb_name, kbd->kb_unit,
(void *)&vd->vd_keyboard, vt_kbdevent, vd);
if (i >= 0) {
if (vd->vd_keyboard != -1) {
kbd_release(kbd,
(void *)&vd->vd_keyboard);
}
kbd = kbd_get_keyboard(i);
vd->vd_keyboard = i;
(void)kbdd_ioctl(kbd, KDSKBMODE,
(caddr_t)&vd->vd_curwindow->vw_kbdmode);
} else {
error = EPERM; /* XXX */
}
}
mtx_unlock(&Giant);
return (error);
case CONS_RELKBD: /* release the current keyboard */
mtx_lock(&Giant);
error = 0;
if (vd->vd_keyboard != -1) {
kbd = kbd_get_keyboard(vd->vd_keyboard);
if (kbd == NULL) {
mtx_unlock(&Giant);
return (EINVAL);
}
error = kbd_release(kbd, (void *)&vd->vd_keyboard);
if (error == 0) {
vd->vd_keyboard = -1;
}
}
mtx_unlock(&Giant);
return (error);
case VT_ACTIVATE: {
int win;
win = *(int *)data - 1;
DPRINTF(5, "%s%d: VT_ACTIVATE ttyv%d ", SC_DRIVER_NAME,
VT_UNIT(vw), win);
if ((win > VT_MAXWINDOWS) || (win < 0))
return (EINVAL);
return (vt_proc_window_switch(vd->vd_windows[win]));
}
case VT_GETACTIVE:
*(int *)data = vd->vd_curwindow->vw_number + 1;
return (0);
case VT_GETINDEX:
*(int *)data = vw->vw_number + 1;
return (0);
case VT_LOCKSWITCH:
/* TODO: Check current state, switching can be in progress. */
if ((*(int *)data) & 0x01)
vw->vw_flags |= VWF_VTYLOCK;
else
vw->vw_flags &= ~VWF_VTYLOCK;
case VT_OPENQRY:
VT_LOCK(vd);
for (i = 0; i < VT_MAXWINDOWS; i++) {
vw = vd->vd_windows[i];
if (vw == NULL)
continue;
if (!(vw->vw_flags & VWF_OPENED)) {
*(int *)data = vw->vw_number + 1;
VT_UNLOCK(vd);
return (0);
}
}
VT_UNLOCK(vd);
return (EINVAL);
case VT_WAITACTIVE:
error = 0;
i = *(unsigned int *)data;
if (i > VT_MAXWINDOWS)
return (EINVAL);
if (i != 0)
vw = vd->vd_windows[i - 1];
VT_LOCK(vd);
while (vd->vd_curwindow != vw && error == 0)
error = cv_wait_sig(&vd->vd_winswitch, &vd->vd_lock);
VT_UNLOCK(vd);
return (error);
case VT_SETMODE: { /* set screen switcher mode */
struct vt_mode *mode;
struct proc *p1;
mode = (struct vt_mode *)data;
DPRINTF(5, "%s%d: VT_SETMODE ", SC_DRIVER_NAME, VT_UNIT(vw));
if (vw->vw_smode.mode == VT_PROCESS) {
p1 = pfind(vw->vw_pid);
if (vw->vw_proc == p1 && vw->vw_proc != td->td_proc) {
if (p1)
PROC_UNLOCK(p1);
DPRINTF(5, "error EPERM\n");
return (EPERM);
}
if (p1)
PROC_UNLOCK(p1);
}
if (mode->mode == VT_AUTO) {
vw->vw_smode.mode = VT_AUTO;
vw->vw_proc = NULL;
vw->vw_pid = 0;
DPRINTF(5, "VT_AUTO, ");
if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW])
cnavailable(vw->vw_terminal->consdev, TRUE);
/* were we in the middle of the vty switching process? */
if (finish_vt_rel(vw, TRUE, &s) == 0)
DPRINTF(5, "reset WAIT_REL, ");
if (finish_vt_acq(vw) == 0)
DPRINTF(5, "reset WAIT_ACQ, ");
return (0);
} else if (mode->mode == VT_PROCESS) {
if (!ISSIGVALID(mode->relsig) ||
!ISSIGVALID(mode->acqsig) ||
!ISSIGVALID(mode->frsig)) {
DPRINTF(5, "error EINVAL\n");
return (EINVAL);
}
DPRINTF(5, "VT_PROCESS %d, ", td->td_proc->p_pid);
bcopy(data, &vw->vw_smode, sizeof(struct vt_mode));
vw->vw_proc = td->td_proc;
vw->vw_pid = vw->vw_proc->p_pid;
if (vw == vw->vw_device->vd_windows[VT_CONSWINDOW])
cnavailable(vw->vw_terminal->consdev, FALSE);
} else {
DPRINTF(5, "VT_SETMODE failed, unknown mode %d\n",
mode->mode);
return (EINVAL);
}
DPRINTF(5, "\n");
return (0);
}
case VT_GETMODE: /* get screen switcher mode */
bcopy(&vw->vw_smode, data, sizeof(struct vt_mode));
return (0);
case VT_RELDISP: /* screen switcher ioctl */
/*
* This must be the current vty which is in the VT_PROCESS
* switching mode...
*/
if ((vw != vd->vd_curwindow) || (vw->vw_smode.mode !=
VT_PROCESS)) {
return (EINVAL);
}
/* ...and this process is controlling it. */
if (vw->vw_proc != td->td_proc) {
return (EPERM);
}
error = EINVAL;
switch(*(int *)data) {
case VT_FALSE: /* user refuses to release screen, abort */
if ((error = finish_vt_rel(vw, FALSE, &s)) == 0)
DPRINTF(5, "%s%d: VT_RELDISP: VT_FALSE\n",
SC_DRIVER_NAME, VT_UNIT(vw));
break;
case VT_TRUE: /* user has released screen, go on */
/* finish_vt_rel(..., TRUE, ...) should not be locked */
if (vw->vw_flags & VWF_SWWAIT_REL) {
if ((error = finish_vt_rel(vw, TRUE, &s)) == 0)
DPRINTF(5, "%s%d: VT_RELDISP: VT_TRUE\n",
SC_DRIVER_NAME, VT_UNIT(vw));
} else {
error = EINVAL;
}
return (error);
case VT_ACKACQ: /* acquire acknowledged, switch completed */
if ((error = finish_vt_acq(vw)) == 0)
DPRINTF(5, "%s%d: VT_RELDISP: VT_ACKACQ\n",
SC_DRIVER_NAME, VT_UNIT(vw));
break;
default:
break;
}
return (error);
}
return (ENOIOCTL);
}
static struct vt_window *
vt_allocate_window(struct vt_device *vd, unsigned int window)
{
struct vt_window *vw;
struct terminal *tm;
term_pos_t size;
struct winsize wsz;
vw = malloc(sizeof *vw, M_VT, M_WAITOK|M_ZERO);
vw->vw_device = vd;
vw->vw_number = window;
vw->vw_kbdmode = K_XLATE;
if (!(vd->vd_flags & VDF_TEXTMODE))
vw->vw_font = vtfont_ref(&vt_font_default);
vt_termsize(vd, vw->vw_font, &size);
vt_winsize(vd, vw->vw_font, &wsz);
vtbuf_init(&vw->vw_buf, &size);
tm = vw->vw_terminal = terminal_alloc(&vt_termclass, vw);
terminal_set_winsize(tm, &wsz);
vd->vd_windows[window] = vw;
callout_init(&vw->vw_proc_dead_timer, 0);
return (vw);
}
void
vt_upgrade(struct vt_device *vd)
{
struct vt_window *vw;
unsigned int i;
/* Device didn't pass vd_init() or already upgraded. */
if (vd->vd_flags & (VDF_ASYNC|VDF_DEAD))
return;
vd->vd_flags |= VDF_ASYNC;
mtx_init(&vd->vd_lock, "vtdev", NULL, MTX_DEF);
cv_init(&vd->vd_winswitch, "vtwswt");
/* Init 25 Hz timer. */
callout_init_mtx(&vd->vd_timer, &vd->vd_lock, 0);
for (i = 0; i < VT_MAXWINDOWS; i++) {
vw = vd->vd_windows[i];
if (vw == NULL) {
/* New window. */
vw = vt_allocate_window(vd, i);
}
if (i == VT_CONSWINDOW) {
/* Console window. */
EVENTHANDLER_REGISTER(shutdown_pre_sync,
vt_window_switch, vw, SHUTDOWN_PRI_DEFAULT);
}
terminal_maketty(vw->vw_terminal, "v%r", VT_UNIT(vw));
}
if (vd->vd_curwindow == NULL)
vd->vd_curwindow = vd->vd_windows[VT_CONSWINDOW];
/* Attach keyboard. */
vt_allocate_keyboard(vd);
DPRINTF(20, "%s: vd_keyboard = %d\n", __func__, vd->vd_keyboard);
/* Start timer when everything ready. */
callout_reset(&vd->vd_timer, hz / VT_TIMERFREQ, vt_timer, vd);
}
static void
vt_resize(struct vt_device *vd)
{
struct vt_window *vw;
int i;
for (i = 0; i < VT_MAXWINDOWS; i++) {
vw = vd->vd_windows[i];
/* Resize terminal windows */
vt_change_font(vw, vw->vw_font);
}
}
void
vt_allocate(struct vt_driver *drv, void *softc)
{
struct vt_device *vd;
struct winsize wsz;
if (main_vd == NULL) {
main_vd = malloc(sizeof *vd, M_VT, M_WAITOK|M_ZERO);
printf("%s: VT initialize with new VT driver.\n", __func__);
} else {
/*
* Check if have rights to replace current driver. For example:
* it is bad idea to replace KMS driver with generic VGA one.
*/
if (drv->vd_priority <= main_vd->vd_driver->vd_priority) {
printf("%s: Driver priority %d too low. Current %d\n ",
__func__, drv->vd_priority,
main_vd->vd_driver->vd_priority);
return;
}
printf("%s: Replace existing VT driver.\n", __func__);
}
vd = main_vd;
/* Stop vt_flush periodic task. */
if (vd->vd_curwindow != NULL)
callout_drain(&vd->vd_timer);
vd->vd_driver = drv;
vd->vd_softc = softc;
vd->vd_driver->vd_init(vd);
vt_upgrade(vd);
/* Refill settings with new sizes. */
vt_resize(vd);
#ifdef DEV_SPLASH
if (vd->vd_flags & VDF_SPLASH)
vtterm_splash(vd);
#endif
if (vd->vd_curwindow != NULL)
callout_schedule(&vd->vd_timer, hz / VT_TIMERFREQ);
termcn_cnregister(vd->vd_windows[VT_CONSWINDOW]->vw_terminal);
/* Update console window sizes to actual. */
vt_winsize(vd, vd->vd_windows[VT_CONSWINDOW]->vw_font, &wsz);
terminal_set_winsize(vd->vd_windows[VT_CONSWINDOW]->vw_terminal, &wsz);
}
void
vt_suspend()
{
if (vt_suspendswitch == 0)
return;
/* Save current window. */
main_vd->vd_savedwindow = main_vd->vd_curwindow;
/* Ask holding process to free window and switch to console window */
vt_proc_window_switch(main_vd->vd_windows[VT_CONSWINDOW]);
}
void
vt_resume()
{
if (vt_suspendswitch == 0)
return;
/* Switch back to saved window */
if (main_vd->vd_savedwindow != NULL)
vt_proc_window_switch(main_vd->vd_savedwindow);
main_vd->vd_savedwindow = NULL;
}
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