129 lines
4.2 KiB
C
129 lines
4.2 KiB
C
/************************************************************************************
|
|
* 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;
|
|
}
|
|
}
|
|
|