6a3c2aded6
* Simplify EINTR/ECANCEL error handling 1. Add semaphore uninterruptible wait function 2 .Replace semaphore wait loop with a single uninterruptible wait 3. Replace all sem_xxx to nxsem_xxx * Unify the void cast usage 1. Remove void cast for function because many place ignore the returned value witout cast 2. Replace void cast for variable with UNUSED macro
137 lines
4.4 KiB
C
137 lines
4.4 KiB
C
/****************************************************************************
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* boards/arm/stm32f0l0g0/nucleo-l073rz/src/stm32_nrf24l01.c
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*
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* Copyright (C) 2019 Gregory Nutt. All rights reserved.
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* Author: Mateusz Szafoni <raiden00@railab.me>
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* 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 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/spi/spi.h>
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#include <nuttx/wireless/nrf24l01.h>
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#include <arch/board/board.h>
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#include "up_arch.h"
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#include "chip.h"
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#include "stm32.h"
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#include "nucleo-l073rz.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define NRF24L01_SPI 1
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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static int nrf24l01_irq_attach(xcpt_t isr, FAR void *arg);
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static void nrf24l01_chip_enable(bool enable);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static struct nrf24l01_config_s nrf_cfg =
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{
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.irqattach = nrf24l01_irq_attach,
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.chipenable = nrf24l01_chip_enable,
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};
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static xcpt_t g_isr;
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static FAR void *g_arg;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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static int nrf24l01_irq_attach(xcpt_t isr, FAR void *arg)
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{
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wlinfo("Attach IRQ\n");
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g_isr = isr;
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g_arg = arg;
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stm32_gpiosetevent(GPIO_NRF24L01_IRQ, false, true, false, g_isr, g_arg);
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return OK;
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}
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static void nrf24l01_chip_enable(bool enable)
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{
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wlinfo("CE:%d\n", enable);
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stm32_gpiowrite(GPIO_NRF24L01_CE, enable);
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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int stm32_wlinitialize(void)
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{
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FAR struct spi_dev_s *spidev;
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int ret = OK;
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syslog(LOG_INFO, "Register the nRF24L01 module\n");
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/* Setup CE & IRQ line IOs */
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stm32_configgpio(GPIO_NRF24L01_CE);
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stm32_configgpio(GPIO_NRF24L01_IRQ);
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/* Init SPI bus */
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spidev = stm32_spibus_initialize(NRF24L01_SPI);
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if (!spidev)
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{
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wlerr("ERROR: Failed to initialize SPI %d bus\n", NRF24L01_SPI);
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ret = -ENODEV;
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goto errout;
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}
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ret = nrf24l01_register(spidev, &nrf_cfg);
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if (ret != OK)
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{
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wlerr("ERROR: Failed to register initialize SPI bus\n");
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goto errout;
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}
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errout:
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return ret;
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}
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