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ec/lenovo/h8: Implement sticky Fn option.

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Useful for accessibility.

Sticky modifier (sticky Fn) is a behaviour of modifier key when
you don't have to hold it pressed to achieve the result. E.g.
with normal Fn brightness up is:
<Press Fn> <Press Home> <Despress Home> <Depress Fn>
With sticky Fn you can do:
<Press Fn> <Depress Fn> <Press Home> <Despress Home>

Change-Id: I4da5adcea02428d936023891de08684cae77c44e
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/4661
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
This commit is contained in:
Vladimir Serbinenko
2014-01-11 10:55:31 +01:00
parent fc7090b249
commit 11a7c84f85
6 changed files with 17 additions and 0 deletions
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12
src/ec/lenovo/h8/h8.c
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@ -70,6 +70,14 @@ static void h8_fn_ctrl_swap(int on)
ec_clr_bit(0xce, 4);
}
static void h8_sticky_fn(int on)
{
if (on)
ec_set_bit(0x0, 3);
else
ec_clr_bit(0x0, 3);
}
static void h8_log_ec_version(void)
{
char ecfw[17];
@ -202,6 +210,10 @@ static void h8_enable(device_t dev)
val = 0;
h8_fn_ctrl_swap(val);
if (get_option(&val, "sticky_fn") != CB_SUCCESS)
val = 0;
h8_sticky_fn(val);
if (get_option(&val, "first_battery") != CB_SUCCESS)
val = 1;