diff options
Diffstat (limited to 'chip/npcx/sib_chip.h')
| -rw-r--r-- | chip/npcx/sib_chip.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/chip/npcx/sib_chip.h b/chip/npcx/sib_chip.h new file mode 100644 index 0000000000..2341f219b4 --- /dev/null +++ b/chip/npcx/sib_chip.h @@ -0,0 +1,23 @@ +/* + * Copyright 2019 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +/* NPCX-specific SIB module for Chrome EC */ + +/* Super-IO index and register definitions */ +#define INDEX_SID 0x20 +#define INDEX_CHPREV 0x24 +#define INDEX_SRID 0x27 + +#define SIO_OFFSET 0x4E + +/* Super-IO register write function */ +void sib_write_reg(uint8_t io_offset, uint8_t index_value, + uint8_t io_data); +/* Super-IO register read function */ +uint8_t sib_read_reg(uint8_t io_offset, uint8_t index_value); +/* Emulate host to read Keyboard I/O */ +uint8_t sib_read_kbc_reg(uint8_t io_offset); + |