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/* Copyright 2021 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.
*/
/* Functions needed by keyboard scanner module for Chrome EC */
#include <device.h>
#include <logging/log.h>
#include <soc.h>
#include <zephyr.h>
#include "drivers/cros_kb_raw.h"
#include "keyboard_raw.h"
LOG_MODULE_REGISTER(shim_cros_kb_raw, LOG_LEVEL_ERR);
#define CROS_KB_RAW_NODE DT_NODELABEL(cros_kb_raw)
static const struct device *cros_kb_raw_dev;
/**
* Initialize the raw keyboard interface.
*/
void keyboard_raw_init(void)
{
cros_kb_raw_dev = DEVICE_DT_GET(CROS_KB_RAW_NODE);
if (!device_is_ready(cros_kb_raw_dev)) {
LOG_ERR("Error: device %s is not ready", cros_kb_raw_dev->name);
return;
}
LOG_INF("%s", __func__);
cros_kb_raw_init(cros_kb_raw_dev);
}
/**
* Finish initialization after task scheduling has started.
*/
void keyboard_raw_task_start(void)
{
keyboard_raw_enable_interrupt(1);
}
/**
* Drive the specified column low.
*/
test_mockable void keyboard_raw_drive_column(int col)
{
if (cros_kb_raw_dev)
cros_kb_raw_drive_column(cros_kb_raw_dev, col);
else
LOG_ERR("%s: no cros_kb_raw device!", __func__);
}
/**
* Read raw row state.
* Bits are 1 if signal is present, 0 if not present.
*/
test_mockable int keyboard_raw_read_rows(void)
{
if (cros_kb_raw_dev)
return cros_kb_raw_read_rows(cros_kb_raw_dev);
LOG_ERR("%s: no cros_kb_raw device!", __func__);
return -EIO;
}
/**
* Enable or disable keyboard interrupts.
*/
void keyboard_raw_enable_interrupt(int enable)
{
if (cros_kb_raw_dev)
cros_kb_raw_enable_interrupt(cros_kb_raw_dev, enable);
else
LOG_ERR("%s: no cros_kb_raw device!", __func__);
}
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