diff options
Diffstat (limited to 'include/acpi.h')
| -rw-r--r-- | include/acpi.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/acpi.h b/include/acpi.h new file mode 100644 index 0000000000..0ffc8d9f10 --- /dev/null +++ b/include/acpi.h @@ -0,0 +1,23 @@ +/* Copyright (c) 2013 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. + */ + +/* ACPI EC interface block. */ + +#ifndef __CROS_EC_ACPI_H +#define __CROS_EC_ACPI_H + +#include <stdint.h> + +/** + * Handle AP write to EC via the ACPI I/O port. + * + * @param is_cmd Is write command (is_cmd=1) or data (is_cmd=0) + * @param value Value written to cmd or data register by AP + * @param result Value for AP to read from data port, if any + * @return True if *result was updated by this call + */ +int acpi_ap_to_ec(int is_cmd, uint8_t value, uint8_t *result); + +#endif /* __CROS_EC_ACPI_H */ |