157 lines
5.5 KiB
C
157 lines
5.5 KiB
C
/*
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* Copyright (c) 2015, Weptech elektronik GmbH Germany
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* http://www.weptech.de
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*
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* All rights reserved.
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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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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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*/
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#ifndef CC1200_ARCH_H
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#define CC1200_ARCH_H
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#include <stdint.h>
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/*---------------------------------------------------------------------------*/
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/*
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* Initialize SPI module & Pins.
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*
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* The function has to accomplish the following tasks:
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* - Enable SPI and configure SPI (CPOL = 0, CPHA = 0)
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* - Configure MISO, MOSI, SCLK accordingly
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* - Configure GPIOx (input)
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* - Configure RESET_N (output high)
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* - Configure CSn (output high)
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*/
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void
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cc1200_arch_init(void);
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/*---------------------------------------------------------------------------*/
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/* Select CC1200 (pull down CSn pin). */
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void
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cc1200_arch_spi_select(void);
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/*---------------------------------------------------------------------------*/
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/* De-select CC1200 (release CSn pin). */
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void
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cc1200_arch_spi_deselect(void);
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/*---------------------------------------------------------------------------*/
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/*
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* Configure port IRQ for GPIO0.
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* If rising == 1: configure IRQ for rising edge, else falling edge
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* Interrupt has to call cc1200_rx_interrupt()!
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*/
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void
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cc1200_arch_gpio0_setup_irq(int rising);
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/*---------------------------------------------------------------------------*/
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/*
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* Configure port IRQ for GPIO2.
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*
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* GPIO2 might not be needed at all depending on the driver's
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* configuration (see cc1200-conf.h)
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*
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* If rising == 1: configure IRQ for rising edge, else falling edge
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* Interrupt has to call cc1200_rx_interrupt()!
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*/
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void
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cc1200_arch_gpio2_setup_irq(int rising);
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/*---------------------------------------------------------------------------*/
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/* Reset interrupt flag and enable GPIO0 port IRQ. */
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void
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cc1200_arch_gpio0_enable_irq(void);
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/*---------------------------------------------------------------------------*/
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/* Disable GPIO0 port IRQ. */
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void
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cc1200_arch_gpio0_disable_irq(void);
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/*---------------------------------------------------------------------------*/
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/*
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* Reset interrupt flag and enable GPIO2 port IRQ
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*
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* GPIO2 might not be needed at all depending on the driver's
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* configuration (see cc1200-conf.h)
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*/
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void
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cc1200_arch_gpio2_enable_irq(void);
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/*---------------------------------------------------------------------------*/
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/*
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* Disable GPIO2 port IRQ.
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*
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* GPIO2 might not be needed at all depending on the driver's
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* configuration (see cc1200-conf.h)
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*/
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void
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cc1200_arch_gpio2_disable_irq(void);
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/*---------------------------------------------------------------------------*/
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/*
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* Read back the status of the GPIO0 pin.
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* Returns 0 if the pin is low, otherwise 1
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*/
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int
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cc1200_arch_gpio0_read_pin(void);
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/*---------------------------------------------------------------------------*/
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/*
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* Read back the status of the GPIO2 pin.
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*
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* GPIO2 might not be needed at all depending on the driver's
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* configuration (see cc1200-conf.h)
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*
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* Returns 0 if the pin is low, otherwise 1
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*/
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int
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cc1200_arch_gpio2_read_pin(void);
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/*---------------------------------------------------------------------------*/
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/*
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* Read back the status of the GPIO3 pin.
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*
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* Currently only used for rf test modes.
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*
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* Returns 0 if the pin is low, otherwise 1
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*/
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int
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cc1200_arch_gpio3_read_pin(void);
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/*---------------------------------------------------------------------------*/
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/* Write a single byte via SPI, return response. */
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int
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cc1200_arch_spi_rw_byte(uint8_t c);
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/*---------------------------------------------------------------------------*/
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/*
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* Write a sequence of bytes while reading back the response.
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* Either read_buf or write_buf can be NULL.
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*/
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int
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cc1200_arch_spi_rw(uint8_t *read_buf,
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const uint8_t *write_buf,
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uint16_t len);
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/*---------------------------------------------------------------------------*/
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/*
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* The CC1200 interrupt handler exported from the cc1200 driver.
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*
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* To be called by the hardware interrupt handler(s),
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* which are defined as part of the cc1200-arch interface.
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*/
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int
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cc1200_rx_interrupt(void);
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#endif /* CC1200_ARCH_H */
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