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/************************************************************************************
* configs/stm32_tiny/src/up_wireless.c
*
* Copyright (C) 2009, 2013 Gregory Nutt. All rights reserved.
* Author: Laurent Latil <laurent@latil.nom.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 <nuttx/wireless/nrf24l01.h>
#include <arch/board/board.h>
#include "up_arch.h"
#include "chip.h"
#include "stm32.h"
#include "stm32_tiny-internal.h"
/************************************************************************************
* Private Function Prototypes
************************************************************************************/
static int stm32tiny_wl_irq_attach(xcpt_t isr);
static void stm32tiny_wl_chip_enable(bool enable);
/************************************************************************************
* Private Data
************************************************************************************/
static FAR struct nrf24l01_config_s nrf_cfg =
{
.irqattach = stm32tiny_wl_irq_attach,
.chipenable = stm32tiny_wl_chip_enable,
};
static xcpt_t g_isr;
/************************************************************************************
* Private Functions
************************************************************************************/
static int stm32tiny_wl_irq_attach(xcpt_t isr)
{
vdbg("Attach IRQ\n");
g_isr = isr;
stm32_gpiosetevent(GPIO_NRF24L01_IRQ, false, true, false, g_isr);
return OK;
}
static void stm32tiny_wl_chip_enable(bool enable)
{
vdbg("CE:%d\n", enable);
stm32_gpiowrite(GPIO_NRF24L01_CE, enable);
}
/************************************************************************************
* Public Functions
************************************************************************************/
void up_wlinitialize(void)
{
# ifndef CONFIG_STM32_SPI2
# error "STM32_SPI2 is required to support nRF24L01 module on this board"
# endif
int result;
FAR struct spi_dev_s *spidev;
/* Setup CE & IRQ line IOs */
stm32_configgpio(GPIO_NRF24L01_CE);
stm32_configgpio(GPIO_NRF24L01_IRQ);
/* Init SPI bus */
spidev = up_spiinitialize(2);
if (!spidev)
{
dbg("Failed to initialize SPI bus\n");
return;
}
result = nrf24l01_register(spidev, &nrf_cfg);
if (result != OK)
{
dbg("Failed to register initialize SPI bus\n");
return;
}
}
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