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qi-gta02-add-ui-debounce.patch

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Signed-off-by: Andy Green <andy@openmoko.com>
This commit is contained in:
Andy Green 2008-12-01 01:26:04 +00:00 committed by Andy Green
parent 263f4335ad
commit d87c26ee38
1 changed files with 25 additions and 0 deletions
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25
qiboot/src/cpu/s3c2442/gta02.c
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@ -368,6 +368,30 @@ static void close_gta02(void)
(bb_s3c24xx.close)();
}
static u8 get_ui_keys_gta02(void)
{
u8 keys;
u8 ret;
static u8 old_keys = 0; /* previous state for debounce */
static u8 old_ret = 0; /* previous debounced output for edge detect */
/* GPF6 is AUX on GTA02, map to UI_ACTION_ADD_DEBUG, down = 1 */
keys = !!(rGPFDAT & (1 << 6));
if (keys == old_keys)
ret = keys;
else
ret = old_keys;
/* edge action */
if ((ret & 1) && !(old_ret & 1))
ret |= UI_ACTION_SKIPKERNEL;
old_keys = keys;
old_ret = ret;
return ret;
}
/*
* our API for bootloader on this machine
*/
@ -383,6 +407,7 @@ const struct board_api board_api_gta02 = {
.port_init = port_init_gta02,
.putc = putc_gta02,
.close = close_gta02,
.get_ui_keys = get_ui_keys_gta02,
.commandline_board = "mtdparts=physmap-flash:-(nor);" \
"neo1973-nand:" \
"0x00040000(qi)," \