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qi-gta03-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 d87c26ee38
commit bede2a1359
1 changed files with 26 additions and 0 deletions
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26
qiboot/src/cpu/s3c6410/gta03-steppingstone.c
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@ -47,6 +47,31 @@ unsigned long s3c6410_mmc_bread(int dev_num, unsigned long blknr, unsigned long
* "root=/dev/ram ramdisk_size=6000000"
*/
static u8 get_ui_keys_gta03(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 */
/* GPN1 is MINUS on GTA03, map to UI_ACTION_ADD_DEBUG, down = 1 */
keys = !!(__REG(GPMDAT) & (1 << 1));
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;
}
const struct board_api board_api_gta03 = {
.name = "GTA03",
.linux_machine_id = 1866,
@ -59,6 +84,7 @@ const struct board_api board_api_gta03 = {
.putc = putc_gta03,
.noboot = "boot/noboot-GTA03",
.append = "boot/append-GTA03",
.get_ui_keys = get_ui_keys_gta03,
.commandline_board = "console=ttySAC3,115200 " \
"init=/sbin/init " \
"loglevel=8 ",