blob: 478e83dca5663e41c6129d9d44ab1c065c13d3aa [file] [log] [blame]
/* Copyright 2014 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.
*/
#ifndef __CROS_EC_GPIO_SIGNAL_H
#define __CROS_EC_GPIO_SIGNAL_H
#include "compile_time_macros.h"
/*
* There are 3 different IO signal types used by the EC.
* Ensure they each use a unique range of values so we can tell them apart.
* 1) Local GPIO => 0 to 0x0FFF
* 2) IO expander GPIO => 0x1000 to 0x1FFF
* 3) eSPI virtual wire signals (defined in include/espi.h) => 0x2000 to 0x2FFF
*/
#define GPIO(name, pin, flags) GPIO_##name,
#define UNIMPLEMENTED(name) GPIO_##name,
#define GPIO_INT(name, pin, flags, signal) GPIO_##name,
#define GPIO_SIGNAL_START 0 /* The first valid GPIO signal is 0 */
enum gpio_signal {
#include "gpio.wrap"
GPIO_COUNT,
/* Ensure that sizeof gpio_signal is large enough for ioex_signal */
GPIO_LIMIT = 0x0FFF
};
BUILD_ASSERT(GPIO_COUNT < GPIO_LIMIT);
#define IOEX(name, expin, flags) IOEX_##name,
#define IOEX_INT(name, expin, flags, signal) IOEX_##name,
enum ioex_signal {
/* The first valid IOEX signal is 0x1000 */
IOEX_SIGNAL_START = GPIO_LIMIT + 1,
/* Used to ensure that the first IOEX signal is same as start */
__IOEX_PLACEHOLDER = GPIO_LIMIT,
#include "gpio.wrap"
IOEX_SIGNAL_END,
IOEX_LIMIT = 0x1FFF
};
BUILD_ASSERT(IOEX_SIGNAL_END < IOEX_LIMIT);
#define IOEX_COUNT (IOEX_SIGNAL_END - IOEX_SIGNAL_START)
#endif /* __CROS_EC_GPIO_SIGNAL_H */