diff options
Diffstat (limited to 'cros_ec/include/ec_keyboard.h')
| -rw-r--r-- | cros_ec/include/ec_keyboard.h | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/cros_ec/include/ec_keyboard.h b/cros_ec/include/ec_keyboard.h index 4f00209953..2c8290fa0b 100644 --- a/cros_ec/include/ec_keyboard.h +++ b/cros_ec/include/ec_keyboard.h @@ -1,13 +1,14 @@ /* Copyright (c) 2011 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. + * + * The functions implemented by keyboard component of EC core. */ -/* Keyboard emulation */ - -#ifndef __CROS_EC_KEYBOARD_H -#define __CROS_EC_KEYBOARD_H +#ifndef __CROS_INCLUDE_EC_KEYBOARD_H +#define __CROS_INCLUDE_EC_KEYBOARD_H +#include "cros_ec/include/ec_common.h" /* The initialize code of keyboard lib. Called by core main. */ EcError EcKeyboardInit(); @@ -15,12 +16,19 @@ EcError EcKeyboardInit(); /* Register the board-specific keyboard matrix translation function. * The callback function accepts col/row and returns the scan code. + * + * Note that *scan_code must be at least 4 bytes long to store maximum + * possible sequence. */ -EcError EcKeyboardMatrixRegister( - int8_t col_num, int8_t row_num, - EcError (*callback)( - int8_t column, int8_t row, int8_t pressed, - uint8_t *scan_code, int32_t* len)); +typedef EcError (*EcKeyboardMatrixCallback)( + int8_t row, int8_t col, int8_t pressed, + uint8_t *scan_code, int32_t* len); + +EcError EcKeyboardMatrixRegisterCallback( + int8_t row_num, int8_t col_num, + EcKeyboardMatrixCallback callback); + +#define MAX_SCAN_CODE_LEN 4 -#endif /* __CROS_EC_KEYBOARD_H */ +#endif /* __CROS_INCLUDE_EC_KEYBOARD_H */ |