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/* 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 uint8_t maxtri_table[CROS_ROW_NUM][CROS_COL_NUM] = {
/* FIXME: waiting for approval to open-source this table. */
};
static uint16_t scancode_set2[128] = {
/* 0 */ 0x0000, 0x000E, 0x0016, 0x001E, 0x0026, 0x0025, 0x002E, 0x0036,
/* 8 */ 0x003d, 0x003e, 0x0046, 0x0045, 0x004E, 0x0055, 0x0000, 0x0066,
/* 16 */ 0x000d, 0x0015, 0x001d, 0x0024, 0x002d, 0x002c, 0x0035, 0x003c,
/* 24 */ 0x0043, 0x0044, 0x004D, 0x0054, 0x005b, 0x005d, 0xE01F, 0x001c,
/* 32 */ 0x001b, 0x0023, 0x002b, 0x0034, 0x0033, 0x003B, 0x0042, 0x004B,
/* 40 */ 0x004C, 0x0052, 0x0000, 0x005A, 0x0012, 0x0000, 0x001A, 0x0022,
/* 48 */ 0x0021, 0x002A, 0x0032, 0x0031, 0x003A, 0x0041, 0x0049, 0x004A,
/* 56 */ 0x0000, 0x0059, 0x0014, 0xE037, 0x0011, 0x0029, 0xE011, 0x0000,
/* 64 */ 0xE014, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
/* 72 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xe06B,
/* 80 */ 0x0000, 0x0000, 0x0000, 0xE075, 0xE072, 0x0000, 0x0000, 0x0000,
/* 88 */ 0x0000, 0xE074, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
/* 96 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
/* 104 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0076, 0x0000,
/* 112 */ 0x0005, 0x0006, 0x0004, 0x000c, 0x0003, 0x000b, 0x0083, 0x0009,
/* 120 */ 0x0000, 0x000a, 0x0001, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
};
static EcError MatrixCallback(
int8_t row, int8_t col, int8_t pressed,
enum EcScancodeSet code_set, uint8_t *scan_code, int32_t* len) {
int key_index; /* the index og scancode_set */
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;
#if 1 /* FIXME: remove #if after we can opensource the matrix table. */
/* fake */
maxtri_table[0][0] = scancode_set2[0]; // FIXME: to make compiler happy
make_code = scancode_set2[key_index = row * 8 + col];
#else
key_index = maxtri_table[row][col];
EC_ASSERT(key_index < (sizeof(scancode_set2) / sizeof(scancode_set2[0])));
make_code = scancode_set2[key_index];
#endif
/* Output the make code (from table) */
EC_ASSERT(make_code); /* there must be a make code mapping to a key */
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;
}
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