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/****************************************************************************
* configs/hn70ap/src/hn70ap_genradio.c
*
* Copyright (C) 2018 Sebastien Lorquet. All rights reserved.
* Author: Sebastien Lorquet <sebastien@lorquet.fr>
*
* 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 NuttX 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 OWNER 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.
*
****************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/spi/spi.h>
#include <arch/board/board.h>
#include <nuttx/wireless/generic/si4463.h>
#include <nuttx/wireless/generic/genradio.h>
#include <stm32.h>
#include "hn70ap.h"
#if defined(CONFIG_HN70AP_RADIO)
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struct si4463_priv_s
{
uint32_t gpio_irq; /* GPIO definition used for IRQ */
xcpt_t handler;
FAR void *arg;
};
/*******************************************************************************
* Name: si4463_attach
*
* Description:
* Initialize required resources to enable si4463 IRQs.
* Called from driver code.
*
******************************************************************************/
int si4463_attach(FAR const struct si4463_lower_s *lower, xcpt_t handler, FAR void *arg)
{
struct si4463_priv_s *priv = lower->privpointer;
priv->handler = handler;
priv->arg = arg;
stm32_configgpio(priv->gpio_irq);
return 0;
}
/*******************************************************************************
* Name: si4463_enable
*
* Description:
* Enable or disable the required IRQ. Called from driver code.
*
******************************************************************************/
void si4463_enable(FAR const struct si4463_lower_s *lower, int state)
{
struct si4463_priv_s *priv = lower->privpointer;
if(state)
{
stm32_gpiosetevent(priv->gpio_irq, /*rising*/ false, /*falling*/ true, /*event*/ false, priv->handler, priv->arg);
}
else
{
stm32_gpiosetevent(priv->gpio_irq, /*rising*/ false, /*falling*/ false, /*event*/ false, NULL, NULL);
}
}
#if defined(CONFIG_HN70AP_MAINRADIO)
struct si4463_priv_s si4463_priv_main;
const struct si4463_lower_s si4463_lower_main =
{
si4463_attach,
si4463_enable,
&si4463_priv_main
};
#if defined(CONFIG_HN70AP_AUXRADIO)
struct si4463_priv_s si4463_priv_aux;
const struct si4463_lower_s si4463_lower_aux =
{
si4463_attach,
si4463_enable,
&si4463_priv_aux
};
/*******************************************************************************
* Name: hn70ap_genradio_initialize
*
* Description:
* Initialize the on board radio transceivers.
*
******************************************************************************/
int hn70ap_genradio_initialize(void)
{
FAR struct genradio_dev_s *radio;
int ret;
FAR struct spi_dev_s *spi4;
/* Initialize SPI bus */
spi4 = stm32_spibus_initialize(4);
if (!spi4)
{
_err("ERROR: FAILED to initialize SPI port 4\n");
_info("Strobing shutdown\n");
/* Strobe the SDN pin to reset both devices */
stm32_configgpio(GPIO_RADIO_SDN);
stm32_gpiowrite(GPIO_RADIO_SDN, 1);
up_mdelay(1);
stm32_gpiowrite(GPIO_RADIO_SDN, 0);
/* Initialize radio devices */
#if defined(CONFIG_HN70AP_MAINRADIO)
_info("Prepare main radio\n");
si4463_priv_main.gpio_irq = GPIO_IRQ_RADIOMAIN;
radio = si4463_init(spi4, 0, 30000000, SI4463_IO1, SI4463_IO3, &si4463_lower_main);
if(radio==NULL)
{
_err("Unable to initialize si4463\n");
}
else
{
_info("Initialized main radio\n");
ret = genradio_register(radio, "/dev/rmain");
if(ret)
{
_err("Failed to register si4463 /dev/rmain\n");
}
_info("Registered main radio\n");
#if defined(CONFIG_HN70AP_AUXRADIO)
_info("Prepare aux radio\n");
si4463_priv_aux.gpio_irq = GPIO_IRQ_RADIOAUX;
radio = RFM26_init(spi4, 1, SI4463_IO0, SI4463_IO1, &si4463_lower_aux);
if(radio==NULL)
{
_err("Unable to initialize si4463\n");
}
else
{
_info("Initialized aux radio\n");
ret = genradio_register(radio, "/dev/raux");
if(ret)
{
_err("Failed to register si4463 /dev/raux\n");
}
_info("Registered aux radio\n");