coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
ec.h
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1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 
3 #ifndef _MAINBOARD_LENOVO_S230U_EC_H
4 #define _MAINBOARD_LENOVO_S230U_EC_H
5 
6 void lenovo_s230u_ec_init(void);
7 
8 #define ECMM(x) (*((volatile u8 *)(CONFIG_EC_BASE_ADDRESS + x)))
9 #define ec_mm_read(addr) (ECMM(0x100 + addr))
10 #define ec_mm_write(addr, data) (ECMM(0x100 + addr) = data)
11 #define ec_mm_set_bit(addr, bit) (ECMM(0x100 + addr) |= 1 << bit)
12 #define ec_mm_clr_bit(addr, bit) (ECMM(0x100 + addr) &= ~(1 << bit))
13 
14 #endif /* _MAINBOARD_LENOVO_S230U_EC_H */
void lenovo_s230u_ec_init(void)
Definition: ec.c:20