130 lines
4.2 KiB
C
130 lines
4.2 KiB
C
/****************************************************************************
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* configs/photon/src/stm32_wlan.c
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*
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* Copyright (C) 2017 Gregory Nutt. All rights reserved.
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* Author: Simon Piriou <spiriou31@gmail.com>
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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 <debug.h>
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#include <arch/board/board.h>
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#include <nuttx/wireless/ieee80211/bcmf_sdio.h>
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#include <nuttx/wireless/ieee80211/bcmf_board.h>
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#include "photon.h"
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#include "stm32_gpio.h"
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#include "stm32_sdio.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: bcmf_board_reset
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****************************************************************************/
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void bcmf_board_reset(int minor, bool reset)
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{
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if (minor != SDIO_WLAN0_MINOR)
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{
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return;
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}
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stm32_gpiowrite(GPIO_WLAN0_RESET, !reset);
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}
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/****************************************************************************
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* Name: bcmf_board_power
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****************************************************************************/
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void bcmf_board_power(int minor, bool power)
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{
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/* Power signal is not used on Photon board */
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}
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/****************************************************************************
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* Name: bcmf_board_initialize
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****************************************************************************/
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void bcmf_board_initialize(int minor)
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{
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if (minor != SDIO_WLAN0_MINOR)
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{
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return;
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}
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/* Configure reset pin */
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stm32_configgpio(GPIO_WLAN0_RESET);
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/* Put wlan chip in reset state */
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bcmf_board_reset(minor, true);
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}
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/****************************************************************************
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* Name: photon_wlan_initialize
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****************************************************************************/
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int photon_wlan_initialize()
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{
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int ret;
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struct sdio_dev_s *sdio_dev;
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/* Initialize sdio interface */
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_info("Initializing SDIO slot %d\n", SDIO_WLAN0_SLOTNO);
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sdio_dev = sdio_initialize(SDIO_WLAN0_SLOTNO);
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if (!sdio_dev)
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{
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_err("ERROR: Failed to initialize SDIO with slot %d\n",
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SDIO_WLAN0_SLOTNO);
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return ERROR;
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}
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/* Bind the SDIO interface to the bcmf driver */
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ret = bcmf_sdio_initialize(SDIO_WLAN0_MINOR, sdio_dev);
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if (ret != OK)
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{
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_err("ERROR: Failed to bind SDIO to bcmf driver\n");
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/* FIXME deinitialize sdio device */
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return ERROR;
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}
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return OK;
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}
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