a73b93157f
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2014 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __SRC_INCLUDE_GPIO_H__
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#define __SRC_INCLUDE_GPIO_H__
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#include <soc/gpio.h>
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#include <types.h>
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/* <soc/gpio.h> must typedef a gpio_t that fits in 32 bits. */
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_Static_assert(sizeof(gpio_t) <= sizeof(u32), "gpio_t doesn't fit in lb_gpio");
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/* The following functions must be implemented by SoC/board code. */
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int gpio_get(gpio_t gpio);
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void gpio_set(gpio_t gpio, int value);
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void gpio_input_pulldown(gpio_t gpio);
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void gpio_input_pullup(gpio_t gpio);
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void gpio_input(gpio_t gpio);
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void gpio_output(gpio_t gpio, int value);
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/*
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* Read the value presented by the set of GPIOs, when each pin is interpreted
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* as a base-2 digit (LOW = 0, HIGH = 1).
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*
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* gpio[]: pin positions to read. gpio[0] is less significant than gpio[1].
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* num_gpio: number of pins to read.
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*/
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int gpio_base2_value(gpio_t gpio[], int num_gpio);
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/*
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* Read the value presented by the set of GPIOs, when each pin is interpreted
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* as a base-3 digit (LOW = 0, HIGH = 1, Z/floating = 2).
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* Example: X1 = Z, X2 = 1 -> gpio_base3_value({GPIO(X1), GPIO(X2)}) = 5
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* BASE3() from <base3.h> can generate numbers to compare the result to.
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*
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* gpio[]: pin positions to read. gpio[0] is less significant than gpio[1].
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* num_gpio: number of pins to read.
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*/
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int gpio_base3_value(gpio_t gpio[], int num_gpio);
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#endif /* __SRC_INCLUDE_GPIO_H__ */
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