vt(4): Save/restore keyboard mode & LED states when switching window
(MFC of r272416)
Add new functions to manipulate these mode & state, instead of calling
kbdd_ioctl() everyhere.
This fixes at least two bugs:
1. The state of the Scroll Lock LED and the state of scroll mode
could be out-of-sync. For instance, if one enables scroll mode on
window #1 and switches to window #2, the LED would remain on, but
the window wouldn't be in scroll mode.
Similarily, when switching between a console and an X.Org
session, the LED states could be inconsistent with the real
state.
2. When exiting from an X.Org session, the user could be unable to
type anything. The workaround was to switch to another console
window and come back.
Differential Revision: https://reviews.freebsd.org/D821
Reviewed by: ray@
Approved by: ray@
Tested by: kwm@
This commit is contained in:
dumbbell
parent
ed67dea7a4
commit
6981999a42
@ -261,6 +261,7 @@ struct vt_window {
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unsigned int vw_number; /* (c) Window number. */
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int vw_kbdmode; /* (?) Keyboard mode. */
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int vw_prev_kbdmode;/* (?) Previous mode. */
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int vw_kbdstate; /* (?) Keyboard state. */
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int vw_grabbed; /* (?) Grab count. */
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char *vw_kbdsq; /* Escape sequence queue*/
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unsigned int vw_flags; /* (d) Per-window flags. */
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@ -297,6 +297,97 @@ vt_switch_timer(void *arg)
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vt_late_window_switch((struct vt_window *)arg);
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}
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static int
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vt_save_kbd_mode(struct vt_window *vw, keyboard_t *kbd)
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{
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int mode, ret;
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mode = 0;
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ret = kbdd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode);
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if (ret == ENOIOCTL)
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ret = ENODEV;
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if (ret != 0)
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return (ret);
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vw->vw_kbdmode = mode;
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return (0);
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}
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static int
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vt_update_kbd_mode(struct vt_window *vw, keyboard_t *kbd)
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{
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int ret;
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ret = kbdd_ioctl(kbd, KDSKBMODE, (caddr_t)&vw->vw_kbdmode);
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if (ret == ENOIOCTL)
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ret = ENODEV;
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return (ret);
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}
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static int
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vt_save_kbd_state(struct vt_window *vw, keyboard_t *kbd)
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{
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int state, ret;
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state = 0;
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ret = kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state);
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if (ret == ENOIOCTL)
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ret = ENODEV;
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if (ret != 0)
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return (ret);
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vw->vw_kbdstate &= ~LOCK_MASK;
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vw->vw_kbdstate |= state & LOCK_MASK;
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return (0);
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}
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static int
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vt_update_kbd_state(struct vt_window *vw, keyboard_t *kbd)
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{
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int state, ret;
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state = vw->vw_kbdstate & LOCK_MASK;
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ret = kbdd_ioctl(kbd, KDSKBSTATE, (caddr_t)&state);
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if (ret == ENOIOCTL)
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ret = ENODEV;
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return (ret);
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}
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static int
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vt_save_kbd_leds(struct vt_window *vw, keyboard_t *kbd)
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{
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int leds, ret;
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leds = 0;
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ret = kbdd_ioctl(kbd, KDGETLED, (caddr_t)&leds);
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if (ret == ENOIOCTL)
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ret = ENODEV;
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if (ret != 0)
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return (ret);
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vw->vw_kbdstate &= ~LED_MASK;
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vw->vw_kbdstate |= leds & LED_MASK;
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return (0);
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}
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static int
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vt_update_kbd_leds(struct vt_window *vw, keyboard_t *kbd)
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{
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int leds, ret;
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leds = vw->vw_kbdstate & LED_MASK;
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ret = kbdd_ioctl(kbd, KDSETLED, (caddr_t)&leds);
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if (ret == ENOIOCTL)
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ret = ENODEV;
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return (ret);
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}
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static int
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vt_window_preswitch(struct vt_window *vw, struct vt_window *curvw)
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{
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@ -409,7 +500,11 @@ vt_window_switch(struct vt_window *vw)
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mtx_lock(&Giant);
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kbd = kbd_get_keyboard(vd->vd_keyboard);
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if (kbd != NULL) {
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kbdd_ioctl(kbd, KDSKBMODE, (void *)&vw->vw_kbdmode);
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if (curvw->vw_kbdmode == K_XLATE)
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vt_save_kbd_state(curvw, kbd);
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vt_update_kbd_mode(vw, kbd);
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vt_update_kbd_state(vw, kbd);
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}
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mtx_unlock(&Giant);
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DPRINTF(10, "%s(ttyv%d) done\n", __func__, vw->vw_number);
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@ -602,7 +697,6 @@ static int
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vt_processkey(keyboard_t *kbd, struct vt_device *vd, int c)
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{
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struct vt_window *vw = vd->vd_curwindow;
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int state = 0;
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#if VT_ALT_TO_ESC_HACK
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if (c & RELKEY) {
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@ -665,10 +759,9 @@ vt_processkey(keyboard_t *kbd, struct vt_device *vd, int c)
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vt_proc_window_switch(vw);
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return (0);
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case SLK: {
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kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state);
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vt_save_kbd_state(vw, kbd);
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VT_LOCK(vd);
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if (state & SLKED) {
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if (vw->vw_kbdstate & SLKED) {
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/* Turn scrolling on. */
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vw->vw_flags |= VWF_SCROLL;
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VTBUF_SLCK_ENABLE(&vw->vw_buf);
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@ -1201,13 +1294,11 @@ vtterm_cngetc(struct terminal *tm)
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struct vt_window *vw = tm->tm_softc;
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struct vt_device *vd = vw->vw_device;
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keyboard_t *kbd;
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int state;
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u_int c;
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if (vw->vw_kbdsq && *vw->vw_kbdsq)
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return (*vw->vw_kbdsq++);
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state = 0;
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/* Make sure the splash screen is not there. */
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if (vd->vd_flags & VDF_SPLASH) {
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/* Remove splash */
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@ -1223,8 +1314,8 @@ vtterm_cngetc(struct terminal *tm)
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return (-1);
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/* Force keyboard input mode to K_XLATE */
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c = K_XLATE;
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kbdd_ioctl(kbd, KDSKBMODE, (void *)&c);
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vw->vw_kbdmode = K_XLATE;
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vt_update_kbd_mode(vw, kbd);
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/* Switch the keyboard to polling to make it work here. */
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kbdd_poll(kbd, TRUE);
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@ -1243,8 +1334,8 @@ vtterm_cngetc(struct terminal *tm)
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if (c & SPCLKEY) {
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switch (c) {
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case SPCLKEY | SLK:
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kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state);
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if (state & SLKED) {
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vt_save_kbd_state(vw, kbd);
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if (vw->vw_kbdstate & SLKED) {
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/* Turn scrolling on. */
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vw->vw_flags |= VWF_SCROLL;
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VTBUF_SLCK_ENABLE(&vw->vw_buf);
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@ -1311,7 +1402,7 @@ vtterm_cngrab(struct terminal *tm)
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/* We shall always use the keyboard in the XLATE mode here. */
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vw->vw_prev_kbdmode = vw->vw_kbdmode;
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vw->vw_kbdmode = K_XLATE;
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(void)kbdd_ioctl(kbd, KDSKBMODE, (caddr_t)&vw->vw_kbdmode);
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vt_update_kbd_mode(vw, kbd);
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kbdd_poll(kbd, TRUE);
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}
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@ -1336,7 +1427,7 @@ vtterm_cnungrab(struct terminal *tm)
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kbdd_poll(kbd, FALSE);
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vw->vw_kbdmode = vw->vw_prev_kbdmode;
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(void)kbdd_ioctl(kbd, KDSKBMODE, (caddr_t)&vw->vw_kbdmode);
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vt_update_kbd_mode(vw, kbd);
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kbdd_disable(kbd);
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}
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@ -1890,12 +1981,8 @@ vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data,
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case SETFKEY:
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case KDGKBINFO:
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case KDGKBTYPE:
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case KDSKBSTATE: /* set keyboard state (locks) */
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case KDGKBSTATE: /* get keyboard state (locks) */
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case KDGETREPEAT: /* get keyboard repeat & delay rates */
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case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */
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case KDSETLED: /* set keyboard LED status */
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case KDGETLED: /* get keyboard LED status */
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case KBADDKBD: /* add/remove keyboard to/from mux */
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case KBRELKBD: {
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error = 0;
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@ -1915,18 +2002,101 @@ vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data,
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}
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return (error);
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}
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case KDGKBMODE: {
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int mode = -1;
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case KDGKBSTATE: { /* get keyboard state (locks) */
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error = 0;
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mtx_lock(&Giant);
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kbd = kbd_get_keyboard(vd->vd_keyboard);
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if (kbd != NULL) {
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kbdd_ioctl(kbd, KDGKBMODE, (void *)&mode);
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if (vw == vd->vd_curwindow) {
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mtx_lock(&Giant);
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kbd = kbd_get_keyboard(vd->vd_keyboard);
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if (kbd != NULL)
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error = vt_save_kbd_state(vw, kbd);
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mtx_unlock(&Giant);
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if (error != 0)
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return (error);
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}
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mtx_unlock(&Giant);
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DPRINTF(20, "mode %d, vw_kbdmode %d\n", mode, vw->vw_kbdmode);
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*(int *)data = mode;
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return (0);
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*(int *)data = vw->vw_kbdstate & LOCK_MASK;
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return (error);
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}
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case KDSKBSTATE: { /* set keyboard state (locks) */
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int state;
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state = *(int *)data;
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if (state & ~LOCK_MASK)
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return (EINVAL);
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vw->vw_kbdstate &= ~LOCK_MASK;
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vw->vw_kbdstate |= state;
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error = 0;
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if (vw == vd->vd_curwindow) {
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mtx_lock(&Giant);
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kbd = kbd_get_keyboard(vd->vd_keyboard);
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if (kbd != NULL)
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error = vt_update_kbd_state(vw, kbd);
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mtx_unlock(&Giant);
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}
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return (error);
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}
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case KDGETLED: { /* get keyboard LED status */
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error = 0;
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if (vw == vd->vd_curwindow) {
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mtx_lock(&Giant);
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kbd = kbd_get_keyboard(vd->vd_keyboard);
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if (kbd != NULL)
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error = vt_save_kbd_leds(vw, kbd);
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mtx_unlock(&Giant);
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if (error != 0)
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return (error);
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}
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*(int *)data = vw->vw_kbdstate & LED_MASK;
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return (error);
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}
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case KDSETLED: { /* set keyboard LED status */
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int leds;
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leds = *(int *)data;
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if (leds & ~LED_MASK)
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return (EINVAL);
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vw->vw_kbdstate &= ~LED_MASK;
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vw->vw_kbdstate |= leds;
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error = 0;
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if (vw == vd->vd_curwindow) {
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mtx_lock(&Giant);
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kbd = kbd_get_keyboard(vd->vd_keyboard);
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if (kbd != NULL)
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error = vt_update_kbd_leds(vw, kbd);
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mtx_unlock(&Giant);
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}
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return (error);
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}
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case KDGKBMODE: {
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error = 0;
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if (vw == vd->vd_curwindow) {
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mtx_lock(&Giant);
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kbd = kbd_get_keyboard(vd->vd_keyboard);
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if (kbd != NULL)
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error = vt_save_kbd_mode(vw, kbd);
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mtx_unlock(&Giant);
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if (error != 0)
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return (error);
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}
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*(int *)data = vw->vw_kbdmode;
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return (error);
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}
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case KDSKBMODE: {
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int mode;
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@ -1937,19 +2107,17 @@ vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data,
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case K_RAW:
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case K_CODE:
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vw->vw_kbdmode = mode;
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if (vw == vd->vd_curwindow) {
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keyboard_t *kbd;
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error = 0;
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error = 0;
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if (vw == vd->vd_curwindow) {
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mtx_lock(&Giant);
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kbd = kbd_get_keyboard(vd->vd_keyboard);
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if (kbd != NULL) {
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error = kbdd_ioctl(kbd, KDSKBMODE,
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(void *)&mode);
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}
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if (kbd != NULL)
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error = vt_update_kbd_mode(vw, kbd);
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mtx_unlock(&Giant);
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}
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return (0);
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return (error);
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default:
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return (EINVAL);
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}
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@ -1977,8 +2145,17 @@ vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data,
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return (0);
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case CONS_GETINFO: {
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vid_info_t *vi = (vid_info_t *)data;
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if (vi->size != sizeof(struct vid_info))
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return (EINVAL);
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if (vw == vd->vd_curwindow) {
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kbd = kbd_get_keyboard(vd->vd_keyboard);
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if (kbd != NULL)
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vt_save_kbd_state(vw, kbd);
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}
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vi->m_num = vd->vd_curwindow->vw_number + 1;
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vi->mk_keylock = vw->vw_kbdstate & LOCK_MASK;
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/* XXX: other fields! */
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return (0);
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}
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@ -2093,13 +2270,14 @@ vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data,
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(void *)vd, vt_kbdevent, vd);
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if (i >= 0) {
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if (vd->vd_keyboard != -1) {
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vt_save_kbd_state(vd->vd_curwindow, kbd);
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kbd_release(kbd, (void *)vd);
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}
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kbd = kbd_get_keyboard(i);
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vd->vd_keyboard = i;
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(void)kbdd_ioctl(kbd, KDSKBMODE,
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(caddr_t)&vd->vd_curwindow->vw_kbdmode);
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vt_update_kbd_mode(vd->vd_curwindow, kbd);
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vt_update_kbd_state(vd->vd_curwindow, kbd);
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} else {
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error = EPERM; /* XXX */
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}
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@ -2115,6 +2293,7 @@ vtterm_ioctl(struct terminal *tm, u_long cmd, caddr_t data,
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mtx_unlock(&Giant);
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return (EINVAL);
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}
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vt_save_kbd_state(vd->vd_curwindow, kbd);
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error = kbd_release(kbd, (void *)vd);
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if (error == 0) {
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vd->vd_keyboard = -1;
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Block a user