97 lines
3.6 KiB
C
97 lines
3.6 KiB
C
|
/*
|
||
|
* Copyright (c) 2016, Dr. Ralf Schlatterbeck Open Source Consulting
|
||
|
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* \file
|
||
|
* Platform configuration for the pico-rv32-icoboard
|
||
|
* Definitions for the radio hardware access
|
||
|
*/
|
||
|
|
||
|
#ifndef RADIO_CONF_H_
|
||
|
#define RADIO_CONF_H_
|
||
|
|
||
|
#include "icosoc.h"
|
||
|
|
||
|
extern void icosoc_cc2520_fifop_irq (void);
|
||
|
|
||
|
/* the low-level radio driver */
|
||
|
#define NETSTACK_CONF_RADIO cc2520_driver
|
||
|
|
||
|
/*
|
||
|
* SPI bus - CC2520 pin configuration.
|
||
|
*/
|
||
|
|
||
|
// Two instructions loop at F_CPU for 326us
|
||
|
#define CC2520_CONF_SYMBOL_LOOP_COUNT (F_CPU / (3067 * 2))
|
||
|
|
||
|
#define CC2520_RESET_SHIFT 0
|
||
|
#define CC2520_CCA_SHIFT 1
|
||
|
|
||
|
/* Pin status.CC2520 */
|
||
|
#define CC2520_FIFOP_IS_1 (!!(icosoc_cc2520_fifop_read()))
|
||
|
#define CC2520_SFD_IS_1 (!!(icosoc_cc2520_sfd_read()))
|
||
|
#define CC2520_CCA_IS_1 (!!(icosoc_cc2520_io_get() & (1<<CC2520_CCA_SHIFT)))
|
||
|
|
||
|
/* The CC2520 reset pin. */
|
||
|
#define SET_RESET_INACTIVE() \
|
||
|
(icosoc_cc2520_io_set(icosoc_cc2520_io_get() | (1<<CC2520_RESET_SHIFT)))
|
||
|
#define SET_RESET_ACTIVE() \
|
||
|
(icosoc_cc2520_io_set(icosoc_cc2520_io_get() & (~(1<<CC2520_RESET_SHIFT))))
|
||
|
|
||
|
/* CC2520 voltage regulator enable pin: direct connection to VCC,
|
||
|
we don't have enough pins to turn power on/off and the fpga will
|
||
|
always need full power anyway
|
||
|
*/
|
||
|
#define SET_VREG_ACTIVE()
|
||
|
#define SET_VREG_INACTIVE()
|
||
|
|
||
|
/* CC2520 rising edge trigger for external interrupt 3 (FIFOP). */
|
||
|
#define CC2520_FIFOP_INT_INIT() \
|
||
|
( register_irq(3, icosoc_cc2520_fifop_irq) \
|
||
|
, icosoc_cc2520_fifop_set_config (icosoc_cc2520_fifop_trigger_re) \
|
||
|
, icosoc_cc2520_fifop_read() \
|
||
|
)
|
||
|
|
||
|
/* FIFOP on external interrupt 3. */
|
||
|
#define CC2520_ENABLE_FIFOP_INT() (enable_irq(3))
|
||
|
#define CC2520_DISABLE_FIFOP_INT() (disable_irq(3))
|
||
|
#define CC2520_CLEAR_FIFOP_INT() (icosoc_cc2520_fifop_read())
|
||
|
|
||
|
/*
|
||
|
* Enables/disables CC2520 access to the SPI bus (Chip Select)
|
||
|
*/
|
||
|
|
||
|
// ENABLE CSn (active low)
|
||
|
#define CC2520_SPI_ENABLE() icosoc_cc2520_spi_cs(0)
|
||
|
// DISABLE CSn (active low)
|
||
|
#define CC2520_SPI_DISABLE() icosoc_cc2520_spi_cs(1)
|
||
|
#define CC2520_SPI_IS_ENABLED() icosoc_cc2520_spi_getcs()
|
||
|
|
||
|
#endif /* RADIO_CONF_H_ */
|