122 lines
3.6 KiB
C
122 lines
3.6 KiB
C
/****************************************************************************
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* boards/arm/stm32h7/nucleo-h743zi/src/stm32_nrf24l01.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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 "arm_internal.h"
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#include "chip.h"
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#include "stm32.h"
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#include "nucleo-h743zi.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define NRF24L01_SPI 3
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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, 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 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, 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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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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