| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2011-2016 The Chromium OS Authors. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef INTEL_COMMON_GPIO_H |
| #define INTEL_COMMON_GPIO_H |
| |
| #include <stdint.h> |
| #include <compiler.h> |
| |
| /* ICH7 GPIOBASE */ |
| #define GPIO_USE_SEL 0x00 |
| #define GP_IO_SEL 0x04 |
| #define GP_LVL 0x0c |
| #define GPO_BLINK 0x18 |
| #define GPI_INV 0x2c |
| #define GPIO_USE_SEL2 0x30 |
| #define GP_IO_SEL2 0x34 |
| #define GP_LVL2 0x38 |
| #define GPIO_USE_SEL3 0x40 |
| #define GP_IO_SEL3 0x44 |
| #define GP_LVL3 0x48 |
| #define GP_RST_SEL1 0x60 |
| #define GP_RST_SEL2 0x64 |
| #define GP_RST_SEL3 0x68 |
| |
| #define GPIO_MODE_NATIVE 0 |
| #define GPIO_MODE_GPIO 1 |
| #define GPIO_MODE_NONE 1 |
| |
| #define GPIO_DIR_OUTPUT 0 |
| #define GPIO_DIR_INPUT 1 |
| |
| #define GPIO_NO_INVERT 0 |
| #define GPIO_INVERT 1 |
| |
| #define GPIO_LEVEL_LOW 0 |
| #define GPIO_LEVEL_HIGH 1 |
| |
| #define GPIO_NO_BLINK 0 |
| #define GPIO_BLINK 1 |
| |
| #define GPIO_RESET_PWROK 0 |
| #define GPIO_RESET_RSMRST 1 |
| |
| struct pch_gpio_set1 { |
| u32 gpio0 : 1; |
| u32 gpio1 : 1; |
| u32 gpio2 : 1; |
| u32 gpio3 : 1; |
| u32 gpio4 : 1; |
| u32 gpio5 : 1; |
| u32 gpio6 : 1; |
| u32 gpio7 : 1; |
| u32 gpio8 : 1; |
| u32 gpio9 : 1; |
| u32 gpio10 : 1; |
| u32 gpio11 : 1; |
| u32 gpio12 : 1; |
| u32 gpio13 : 1; |
| u32 gpio14 : 1; |
| u32 gpio15 : 1; |
| u32 gpio16 : 1; |
| u32 gpio17 : 1; |
| u32 gpio18 : 1; |
| u32 gpio19 : 1; |
| u32 gpio20 : 1; |
| u32 gpio21 : 1; |
| u32 gpio22 : 1; |
| u32 gpio23 : 1; |
| u32 gpio24 : 1; |
| u32 gpio25 : 1; |
| u32 gpio26 : 1; |
| u32 gpio27 : 1; |
| u32 gpio28 : 1; |
| u32 gpio29 : 1; |
| u32 gpio30 : 1; |
| u32 gpio31 : 1; |
| } __packed; |
| |
| struct pch_gpio_set2 { |
| u32 gpio32 : 1; |
| u32 gpio33 : 1; |
| u32 gpio34 : 1; |
| u32 gpio35 : 1; |
| u32 gpio36 : 1; |
| u32 gpio37 : 1; |
| u32 gpio38 : 1; |
| u32 gpio39 : 1; |
| u32 gpio40 : 1; |
| u32 gpio41 : 1; |
| u32 gpio42 : 1; |
| u32 gpio43 : 1; |
| u32 gpio44 : 1; |
| u32 gpio45 : 1; |
| u32 gpio46 : 1; |
| u32 gpio47 : 1; |
| u32 gpio48 : 1; |
| u32 gpio49 : 1; |
| u32 gpio50 : 1; |
| u32 gpio51 : 1; |
| u32 gpio52 : 1; |
| u32 gpio53 : 1; |
| u32 gpio54 : 1; |
| u32 gpio55 : 1; |
| u32 gpio56 : 1; |
| u32 gpio57 : 1; |
| u32 gpio58 : 1; |
| u32 gpio59 : 1; |
| u32 gpio60 : 1; |
| u32 gpio61 : 1; |
| u32 gpio62 : 1; |
| u32 gpio63 : 1; |
| } __packed; |
| |
| struct pch_gpio_set3 { |
| u32 gpio64 : 1; |
| u32 gpio65 : 1; |
| u32 gpio66 : 1; |
| u32 gpio67 : 1; |
| u32 gpio68 : 1; |
| u32 gpio69 : 1; |
| u32 gpio70 : 1; |
| u32 gpio71 : 1; |
| u32 gpio72 : 1; |
| u32 gpio73 : 1; |
| u32 gpio74 : 1; |
| u32 gpio75 : 1; |
| } __packed; |
| |
| struct pch_gpio_map { |
| struct { |
| const struct pch_gpio_set1 *mode; |
| const struct pch_gpio_set1 *direction; |
| const struct pch_gpio_set1 *level; |
| const struct pch_gpio_set1 *reset; |
| const struct pch_gpio_set1 *invert; |
| const struct pch_gpio_set1 *blink; |
| } set1; |
| struct { |
| const struct pch_gpio_set2 *mode; |
| const struct pch_gpio_set2 *direction; |
| const struct pch_gpio_set2 *level; |
| const struct pch_gpio_set2 *reset; |
| } set2; |
| struct { |
| const struct pch_gpio_set3 *mode; |
| const struct pch_gpio_set3 *direction; |
| const struct pch_gpio_set3 *level; |
| const struct pch_gpio_set3 *reset; |
| } set3; |
| }; |
| |
| extern const struct pch_gpio_map mainboard_gpio_map; |
| |
| /* Configure GPIOs with mainboard provided settings */ |
| void setup_pch_gpios(const struct pch_gpio_map *gpio); |
| |
| /* get GPIO pin value */ |
| int get_gpio(int gpio_num); |
| /* |
| * get a number comprised of multiple GPIO values. gpio_num_array points to |
| * the array of gpio pin numbers to scan, terminated by -1. |
| */ |
| unsigned get_gpios(const int *gpio_num_array); |
| |
| void set_gpio(int gpio_num, int value); |
| |
| void clear_gpio(int gpio_num); |
| |
| int gpio_is_native(int gpio_num); |
| |
| #endif |