| /* 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" |
| |
| #ifdef CONFIG_ZEPHYR |
| #include "zephyr_gpio_signal.h" |
| #else |
| |
| /* |
| * 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 /* !CONFIG_ZEPHYR */ |
| |
| #endif /* __CROS_EC_GPIO_SIGNAL_H */ |