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ACPI EC: add ec_query function 

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Acked-by: Peter Stuge <peter@stuge.se>

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6447 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Sven Schnelle 2011-03-15 09:52:07 +00:00
parent 07ca1c47b2
commit f9a0b927f5
2 changed files with 7 additions and 0 deletions
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6
src/ec/acpi/ec.c
View File

@ -116,6 +116,12 @@ int ec_write(u8 addr, u8 data)
return send_ec_data(data);
}
u8 ec_query(void)
{
send_ec_command(0x84);
return recv_ec_data();
}
void ec_set_bit(u8 addr, u8 bit)
{
ec_write(addr, ec_read(addr) | (1 << bit));

1
src/ec/acpi/ec.h
View File

@ -42,6 +42,7 @@ int send_ec_command(u8 command);
int send_ec_data(u8 data);
int send_ec_data_nowait(u8 data);
u8 recv_ec_data(void);
u8 ec_query(void);
u8 ec_read(u8 addr);
int ec_write(u8 addr, u8 data);
void ec_set_bit(u8 addr, u8 bit);