1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/* 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.
*
* main.c -- the main function of board-specific code.
*/
#include "cros_ec/include/ec_common.h"
#include "board/board_interface.h"
#include "cros_ec/include/ec_keyboard.h"
#define CROS_ROW_NUM 8 /* TODO: +1 for power button. */
#define CROS_COL_NUM 13
/* The standard Chrome OS keyboard matrix table. */
static uint16_t scancode_set2[CROS_ROW_NUM][CROS_COL_NUM] = {
{0x0000, 0xe01f, 0x0005, 0x0032, 0x0009, 0x0000, 0x0031, 0x0000, 0x0055,
0x0000, 0xe011, 0x0000, 0x0000},
{0x0000, 0x0076, 0x000c, 0x0034, 0x0083, 0x0000, 0x0033, 0x0000, 0x0052,
0x0001, 0x0000, 0x0066, 0x0000},
{0x0014, 0x000d, 0x0004, 0x002c, 0x000b, 0x005b, 0x0035, 0x0000, 0x0054,
0x000a, 0x0000, 0x0000, 0x0000},
{0x0000, 0x000e, 0x0006, 0x002e, 0x0003, 0x0000, 0x0036, 0x0000, 0x004e,
0x0000, 0x0000, 0x005d, 0x0000},
{0xe014, 0x001c, 0x0023, 0x002b, 0x001b, 0x0042, 0x003b, 0x0000, 0x004c,
0x004b, 0x0000, 0x005a, 0x0000},
{0x0000, 0x001a, 0x0021, 0x002a, 0x0022, 0x0041, 0x003a, 0x0012, 0x004a,
0x0049, 0x0000, 0x0029, 0x0000},
{0x0000, 0x0016, 0x0026, 0x0025, 0x001e, 0x003e, 0x003d, 0x0000, 0x0045,
0x0046, 0x0011, 0xe072, 0xe074},
{0x0000, 0x0015, 0x0024, 0x002d, 0x001d, 0x0043, 0x003c, 0x0059, 0x004d,
0x0044, 0x0000, 0xe075, 0xe06b},
};
static EcError MatrixCallback(
int8_t row, int8_t col, int8_t pressed,
enum EcScancodeSet code_set, uint8_t *scan_code, int32_t* len) {
uint16_t make_code;
EC_ASSERT(code_set == EC_SCANCODE_SET_2); /* TODO: support other sets? */
EC_ASSERT(scan_code);
EC_ASSERT(len);
if (row > CROS_ROW_NUM ||
col > CROS_COL_NUM) {
return EC_ERROR_INVALID_PARAMETER;
}
*len = 0;
make_code = scancode_set2[row][col];
EC_ASSERT(make_code); /* there must be a make code mapping to a key */
/* Output the make code (from table) */
if (make_code >= 0x0100) {
*len += 2;
scan_code[0] = make_code >> 8;
scan_code[1] = make_code & 0xff;
} else {
*len += 1;
scan_code[0] = make_code & 0xff;
}
/* insert the break byte, move back the last byte and insert a 0xf0 byte
* before that. */
if (!pressed) {
EC_ASSERT(*len >= 1);
scan_code[*len] = scan_code[*len - 1];
scan_code[*len - 1] = 0xF0;
*len += 1;
}
return EC_SUCCESS;
}
EcError BoardInit() {
EC_ASSERT(EC_SUCCESS ==
EcKeyboardMatrixRegisterCallback(
CROS_ROW_NUM, CROS_COL_NUM, MatrixCallback));
return EC_SUCCESS;
}
|
