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https://github.com/zephyrproject-rtos/zephyr
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2d6ba51742
This provides the API to manipulte the pin muxing, where a single pin may provide different functions depending on settings. [DL: changed commit message.] Change-Id: Ifd161137c062dff184024b5aa34737604911d09c Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com> Signed-off-by: Daniel Leung <daniel.leung@intel.com>
76 lines
2.5 KiB
C
76 lines
2.5 KiB
C
/* pinmux.h - the private pinmux driver header */
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/*
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* Copyright (c) 2015 Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __INCLUDE_PINMUX_H
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#define __INCLUDE_PINMUX_H
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#include <stdint.h>
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#include <device.h>
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#define PINMUX_NAME "pinmux"
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#define PINMUX_FUNC_A 0
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#define PINMUX_FUNC_B 1
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#define PINMUX_FUNC_C 2
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#define PINMUX_FUNC_D 3
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typedef uint32_t (*pmux_set)(struct device *dev, uint32_t pin, uint8_t func);
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typedef uint32_t (*pmux_get)(struct device *dev, uint32_t pin, uint8_t *func);
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struct pinmux_driver_api {
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pmux_set set;
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pmux_get get;
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};
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static inline uint32_t pinmux_set_pin(struct device *dev,
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uint32_t pin,
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uint8_t func)
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{
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struct pinmux_driver_api *api;
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api = (struct pinmux_driver_api *) dev->driver_api;
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return api->set(dev, pin, func);
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}
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static inline uint32_t pinmux_get_pin(struct device *dev,
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uint32_t pin,
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uint8_t *func)
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{
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struct pinmux_driver_api *api;
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api = (struct pinmux_driver_api *) dev->driver_api;
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return api->get(dev, pin, func);
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}
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#endif /* __INCLUDE_PINMUX_H */
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