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2009-09-24 Robert Millan <rmh.grub@aybabtu.com>

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Fix "lost keypress" bug in at_keyboard.

        * term/i386/pc/at_keyboard.c (grub_at_keyboard_checkkey): New function.
        Checks for readyness of input buffer (without flushing it).
        (grub_at_keyboard_term): Use grub_at_keyboard_checkkey() rather
        than grub_at_keyboard_getkey_noblock() for `checkkey' struct member.
This commit is contained in:
robertmh 2009-09-24 13:25:07 +00:00
parent c6dcedf6b2
commit 4e5a02a7ba
2 changed files with 17 additions and 2 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2009-09-24 Robert Millan <rmh.grub@aybabtu.com>
Fix "lost keypress" bug in at_keyboard.
* term/i386/pc/at_keyboard.c (grub_at_keyboard_checkkey): New function.
Checks for readyness of input buffer (without flushing it).
(grub_at_keyboard_term): Use grub_at_keyboard_checkkey() rather
than grub_at_keyboard_getkey_noblock() for `checkkey' struct member.
2009-09-24 Robert Millan <rmh.grub@aybabtu.com>
* util/i386/pc/grub-mkimage.c (generate_image): Enclose BIOS-specific

10
term/i386/pc/at_keyboard.c
View file

@ -189,6 +189,13 @@ grub_at_keyboard_getkey_noblock (void)
return key;
}
static int
grub_at_keyboard_checkkey (void)
{
/* FIXME: this will be triggered by BREAK events. */
return KEYBOARD_ISREADY (grub_inb (KEYBOARD_REG_STATUS)) ? 1 : -1;
}
static int
grub_at_keyboard_getkey (void)
{
@ -220,8 +227,7 @@ static struct grub_term_input grub_at_keyboard_term =
.name = "at_keyboard",
.init = grub_keyboard_controller_init,
.fini = grub_keyboard_controller_fini,
/* FIXME: This routine flushes input buffer, and it shouldn't. */
.checkkey = grub_at_keyboard_getkey_noblock,
.checkkey = grub_at_keyboard_checkkey,
.getkey = grub_at_keyboard_getkey,
};