osd-contiki/platform/galileo/drivers/galileo-pinmux.h

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/*
* Copyright (C) 2015, Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CPU_X86_DRIVERS_GALILEO_PINMUX_H_
#define CPU_X86_DRIVERS_GALILEO_PINMUX_H_
#include <stdint.h>
typedef enum galileo_pin_group {
GALILEO_PIN_GRP_ANALOG,
GALILEO_PIN_GRP_DIGITAL
} galileo_pin_group_t;
#define GALILEO_NUM_ANALOG_PINS 6
#define GALILEO_NUM_DIGITAL_PINS 14
#define GALILEO_NUM_PINS (GALILEO_NUM_ANALOG_PINS + GALILEO_NUM_DIGITAL_PINS)
int galileo_pinmux_initialize(void);
/**
* \brief Set the indicated pin to be a digital input.
* \param grp Indicates whether the pin is in the analog or digital group.
* \param pin Index of pin within group.
*/
void galileo_pinmux_select_din(galileo_pin_group_t grp, unsigned pin);
/**
* \brief Set the indicated pin to be a digital output.
*/
void galileo_pinmux_select_dout(galileo_pin_group_t grp, unsigned pin);
/**
* \brief Set the indicated pin to be a PWM pin. Only a subset of the pins
* support PWM output. This implicitly operates on the digital pin
* group.
*/
void galileo_pinmux_select_pwm(unsigned pin);
/**
* \brief Connect the indicated pin to a serial port. This implicitly operates
* on the digital pin group. Galileo Gen. 2 supports UART0 on pins 0 and
* 1 and UART1 on pins 2 and 3.
*/
void galileo_pinmux_select_serial(unsigned pin);
/**
* \brief Connect analog pins 4 (SDA) and 5 (SCL) to I2C.
*/
void galileo_pinmux_select_i2c(void);
/**
* \brief Connect digital pins 11 (MOSI), 12 (MISO), and 13 (CLK) to SPI.
*/
void galileo_pinmux_select_spi(void);
/**
* \brief Set the indicated pin to be an ADC input. This implicitly operates
* on the analog pin group.
*/
void galileo_pinmux_select_analog(unsigned pin);
#endif /* CPU_X86_DRIVERS_GALILEO_PINMUX_H_ */