nes-proj/arch/dev/cc1200/cc1200-arch.h

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/*
* Copyright (c) 2015, Weptech elektronik GmbH Germany
* http://www.weptech.de
*
* 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.
*
* This file is part of the Contiki operating system.
*/
#ifndef CC1200_ARCH_H
#define CC1200_ARCH_H
#include <stdint.h>
/*---------------------------------------------------------------------------*/
/*
* Initialize SPI module & Pins.
*
* The function has to accomplish the following tasks:
* - Enable SPI and configure SPI (CPOL = 0, CPHA = 0)
* - Configure MISO, MOSI, SCLK accordingly
* - Configure GPIOx (input)
* - Configure RESET_N (output high)
* - Configure CSn (output high)
*/
void
cc1200_arch_init(void);
/*---------------------------------------------------------------------------*/
/* Select CC1200 (pull down CSn pin). */
void
cc1200_arch_spi_select(void);
/*---------------------------------------------------------------------------*/
/* De-select CC1200 (release CSn pin). */
void
cc1200_arch_spi_deselect(void);
/*---------------------------------------------------------------------------*/
/*
* Configure port IRQ for GPIO0.
* If rising == 1: configure IRQ for rising edge, else falling edge
* Interrupt has to call cc1200_rx_interrupt()!
*/
void
cc1200_arch_gpio0_setup_irq(int rising);
/*---------------------------------------------------------------------------*/
/*
* Configure port IRQ for GPIO2.
*
* GPIO2 might not be needed at all depending on the driver's
* configuration (see cc1200-conf.h)
*
* If rising == 1: configure IRQ for rising edge, else falling edge
* Interrupt has to call cc1200_rx_interrupt()!
*/
void
cc1200_arch_gpio2_setup_irq(int rising);
/*---------------------------------------------------------------------------*/
/* Reset interrupt flag and enable GPIO0 port IRQ. */
void
cc1200_arch_gpio0_enable_irq(void);
/*---------------------------------------------------------------------------*/
/* Disable GPIO0 port IRQ. */
void
cc1200_arch_gpio0_disable_irq(void);
/*---------------------------------------------------------------------------*/
/*
* Reset interrupt flag and enable GPIO2 port IRQ
*
* GPIO2 might not be needed at all depending on the driver's
* configuration (see cc1200-conf.h)
*/
void
cc1200_arch_gpio2_enable_irq(void);
/*---------------------------------------------------------------------------*/
/*
* Disable GPIO2 port IRQ.
*
* GPIO2 might not be needed at all depending on the driver's
* configuration (see cc1200-conf.h)
*/
void
cc1200_arch_gpio2_disable_irq(void);
/*---------------------------------------------------------------------------*/
/*
* Read back the status of the GPIO0 pin.
* Returns 0 if the pin is low, otherwise 1
*/
int
cc1200_arch_gpio0_read_pin(void);
/*---------------------------------------------------------------------------*/
/*
* Read back the status of the GPIO2 pin.
*
* GPIO2 might not be needed at all depending on the driver's
* configuration (see cc1200-conf.h)
*
* Returns 0 if the pin is low, otherwise 1
*/
int
cc1200_arch_gpio2_read_pin(void);
/*---------------------------------------------------------------------------*/
/*
* Read back the status of the GPIO3 pin.
*
* Currently only used for rf test modes.
*
* Returns 0 if the pin is low, otherwise 1
*/
int
cc1200_arch_gpio3_read_pin(void);
/*---------------------------------------------------------------------------*/
/* Write a single byte via SPI, return response. */
int
cc1200_arch_spi_rw_byte(uint8_t c);
/*---------------------------------------------------------------------------*/
/*
* Write a sequence of bytes while reading back the response.
* Either read_buf or write_buf can be NULL.
*/
int
cc1200_arch_spi_rw(uint8_t *read_buf,
const uint8_t *write_buf,
uint16_t len);
/*---------------------------------------------------------------------------*/
/*
* The CC1200 interrupt handler exported from the cc1200 driver.
*
* To be called by the hardware interrupt handler(s),
* which are defined as part of the cc1200-arch interface.
*/
int
cc1200_rx_interrupt(void);
#endif /* CC1200_ARCH_H */