138 lines
4.0 KiB
C
138 lines
4.0 KiB
C
/****************************************************************************
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* boards/arm/stm32l4/nucleo-l476rg/src/stm32_cc1101.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 <string.h>
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#include <debug.h>
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#include <nuttx/arch.h>
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#include <nuttx/board.h>
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#include <nuttx/config.h>
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#include <nuttx/kmalloc.h>
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#include <nuttx/wqueue.h>
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#include <nuttx/spi/spi.h>
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#include <nuttx/wireless/cc1101.h>
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#include "stm32l4.h"
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#include "nucleo-l476rg.h"
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#ifdef CONFIG_WL_CC1101
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: cc1101_wait
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*
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* Description:
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*
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****************************************************************************/
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static void cc1101_wait(struct cc1101_dev_s *dev, uint32_t pin)
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{
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while (stm32l4_gpioread(pin) == true)
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{
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}
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}
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/****************************************************************************
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* Name: cc1101_irq
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*
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* Description:
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*
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****************************************************************************/
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static void cc1101_irq(struct cc1101_dev_s *dev, bool enable)
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{
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if (enable)
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{
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stm32l4_gpiosetevent(dev->isr_pin, false, true, true, cc1101_isr, dev);
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}
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else
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{
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stm32l4_gpiosetevent(dev->isr_pin, false, true, true, NULL, NULL);
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}
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}
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/****************************************************************************
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* Name: cc1101_pwr
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*
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* Description:
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*
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****************************************************************************/
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static void cc1101_pwr(struct cc1101_dev_s *dev, bool enable)
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{
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: stm32l4_cc1101_initialize
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*
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* Description:
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* Initialize and register the cc1101 radio driver
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*
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****************************************************************************/
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int stm32l4_cc1101_initialize(void)
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{
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struct spi_dev_s *spi = NULL;
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struct cc1101_dev_s *dev = NULL;
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spi = stm32l4_spibus_initialize(CONFIG_CC1101_SPIDEV);
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if (spi == NULL)
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{
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ierr("ERROR: Failed to initialize SPI bus %d\n", CONFIG_CC1101_SPIDEV);
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return -ENODEV;
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}
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dev = kmm_malloc(sizeof(struct cc1101_dev_s));
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if (dev == NULL)
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{
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return -ENOMEM;
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}
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memset(dev, 0, sizeof(struct cc1101_dev_s));
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dev->spi = spi;
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dev->isr_pin = GPIO_CC1101_GDO2;
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dev->miso_pin = GPIO_CC1101_MISO;
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dev->gdo = CC1101_PIN_GDO2;
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dev->rfsettings = &cc1101_rfsettings_ISM2_433MHzMSK500kbps;
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dev->dev_id = SPIDEV_WIRELESS(5);
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dev->channel = 0;
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dev->power = 1;
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dev->ops.wait = cc1101_wait;
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dev->ops.pwr = cc1101_pwr;
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dev->ops.irq = cc1101_irq;
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return cc1101_register("/dev/cc1101", dev);
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}
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#endif
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