diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2015-06-06 11:44:39 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-06-16 14:59:46 -0700 |
| commit | eeb64c14275e52740d6410632e62e0ad9b88ca70 (patch) | |
| tree | 22b808cc11a63db51f10464613b6d1ed93b6536c /drivers/tty | |
| parent | 5235552273e6b68abbed3b3047af6344e2e60c2c (diff) | |
tty/vt/keyboard: define LED triggers for VT keyboard lock states
In addition to defining triggers for VT LED states, let's define triggers
for VT keyboard lock states, such as "kbd-shiftlock", "kbd-altgrlock", etc.
This permits to fix #7063 from userland by using a modifier to implement
proper CapsLock behavior and have the keyboard caps lock led show that
modifier state.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Tested-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/vt/keyboard.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c index fc080bf1c4d2..6f0336fff501 100644 --- a/drivers/tty/vt/keyboard.c +++ b/drivers/tty/vt/keyboard.c @@ -130,7 +130,7 @@ static char rep; /* flag telling character repeat */ static int shift_state = 0; -static unsigned char ledstate = 0xff; /* undefined */ +static unsigned int ledstate = -1U; /* undefined */ static unsigned char ledioctl; /* @@ -975,7 +975,7 @@ static void kbd_led_trigger_activate(struct led_classdev *cdev) container_of(cdev->trigger, struct kbd_led_trigger, trigger); tasklet_disable(&keyboard_tasklet); - if (ledstate != 0xff) + if (ledstate != -1U) led_trigger_event(&trigger->trigger, ledstate & trigger->mask ? LED_FULL : LED_OFF); @@ -990,11 +990,23 @@ static void kbd_led_trigger_activate(struct led_classdev *cdev) .mask = BIT(_led_bit), \ } +#define KBD_LOCKSTATE_TRIGGER(_led_bit, _name) \ + KBD_LED_TRIGGER((_led_bit) + 8, _name) + static struct kbd_led_trigger kbd_led_triggers[] = { KBD_LED_TRIGGER(VC_SCROLLOCK, "kbd-scrollock"), KBD_LED_TRIGGER(VC_NUMLOCK, "kbd-numlock"), KBD_LED_TRIGGER(VC_CAPSLOCK, "kbd-capslock"), KBD_LED_TRIGGER(VC_KANALOCK, "kbd-kanalock"), + + KBD_LOCKSTATE_TRIGGER(VC_SHIFTLOCK, "kbd-shiftlock"), + KBD_LOCKSTATE_TRIGGER(VC_ALTGRLOCK, "kbd-altgrlock"), + KBD_LOCKSTATE_TRIGGER(VC_CTRLLOCK, "kbd-ctrllock"), + KBD_LOCKSTATE_TRIGGER(VC_ALTLOCK, "kbd-altlock"), + KBD_LOCKSTATE_TRIGGER(VC_SHIFTLLOCK, "kbd-shiftllock"), + KBD_LOCKSTATE_TRIGGER(VC_SHIFTRLOCK, "kbd-shiftrlock"), + KBD_LOCKSTATE_TRIGGER(VC_CTRLLLOCK, "kbd-ctrlllock"), + KBD_LOCKSTATE_TRIGGER(VC_CTRLRLOCK, "kbd-ctrlrlock"), }; static void kbd_propagate_led_state(unsigned int old_state, @@ -1073,7 +1085,7 @@ static void kbd_init_leds(void) */ static unsigned char getledstate(void) { - return ledstate; + return ledstate & 0xff; } void setledstate(struct kbd_struct *kb, unsigned int led) @@ -1183,11 +1195,12 @@ void vt_kbd_con_stop(int console) */ static void kbd_bh(unsigned long dummy) { - unsigned char leds; + unsigned int leds; unsigned long flags; spin_lock_irqsave(&led_lock, flags); leds = getleds(); + leds |= (unsigned int)kbd->lockstate << 8; spin_unlock_irqrestore(&led_lock, flags); if (leds != ledstate) { @@ -1539,10 +1552,8 @@ static void kbd_start(struct input_handle *handle) { tasklet_disable(&keyboard_tasklet); - if (ledstate != 0xff) { - unsigned int state = ledstate; - kbd_update_leds_helper(handle, &state); - } + if (ledstate != -1U) + kbd_update_leds_helper(handle, &ledstate); tasklet_enable(&keyboard_tasklet); } |