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seabios
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kbd: make enqueue_key public, add ascii_to_keycode 

serial console wants queue key events and needs to map ascii chars to
the keycode, so make enqueue_key public and also exports a helper
function so sercon can use the scan_to_keycode mapping table.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2017-09-18 10:47:20 +02:00 committed by Kevin O'Connor
parent 44270bc1d2
commit 90fa511527
2 changed files with 19 additions and 1 deletions
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18
src/kbd.c
View File

@ -29,7 +29,7 @@ kbd_init(void)
, x + FIELD_SIZEOF(struct bios_data_area_s, kbd_buf));
}
static u8
u8
enqueue_key(u16 keycode)
{
u16 buffer_start = GET_BDA(kbd_buf_start_offset);
@ -375,6 +375,22 @@ struct scaninfo key_ext_slash VAR16 = {
0xe02f, 0xe02f, 0x9500, 0xa400
};
u16 ascii_to_keycode(u8 ascii)
{
int i;
for (i = 0; i < ARRAY_SIZE(scan_to_keycode); i++) {
if ((GET_GLOBAL(scan_to_keycode[i].normal) & 0xff) == ascii)
return GET_GLOBAL(scan_to_keycode[i].normal);
if ((GET_GLOBAL(scan_to_keycode[i].shift) & 0xff) == ascii)
return GET_GLOBAL(scan_to_keycode[i].shift);
if ((GET_GLOBAL(scan_to_keycode[i].control) & 0xff) == ascii)
return GET_GLOBAL(scan_to_keycode[i].control);
}
return 0;
}
// Handle a ps2 style scancode read from the keyboard.
static void
kbd_set_flag(int key_release, u16 set_bit0, u8 set_bit1, u16 toggle_bit)
{

2
src/util.h
View File

@ -186,6 +186,8 @@ int jpeg_show(struct jpeg_decdata *jpeg, unsigned char *pic, int width
void kbd_init(void);
void handle_15c2(struct bregs *regs);
void process_key(u8 key);
u8 enqueue_key(u16 keycode);
u16 ascii_to_keycode(u8 ascii);
// misc.c
extern int HaveRunPost;