132 lines
3.9 KiB
C
132 lines
3.9 KiB
C
/****************************************************************************
|
|
* boards/risc-v/litex/arty_a7/src/litex_sdio.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <debug.h>
|
|
#include <errno.h>
|
|
|
|
#include <nuttx/sdio.h>
|
|
#include <nuttx/mmcsd.h>
|
|
|
|
#include "litex.h"
|
|
#include "arty_a7.h"
|
|
#include "litex_sdio.h"
|
|
|
|
#ifdef HAVE_SDMMC
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: litex_sdio_card_isr_callback
|
|
*
|
|
* Description:
|
|
* Check if a card is inserted into the selected MMCSD slot
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void litex_sdio_card_isr_callback(void *arg)
|
|
{
|
|
bool cd;
|
|
|
|
cd = litex_cardinserted(SDIO_SLOTNO);
|
|
finfo("Card detect: %d\n", cd);
|
|
sdio_mediachange(arg, cd);
|
|
|
|
#ifdef HAVE_AUTOMOUNTER
|
|
/* Let the automounter know about the insertion event */
|
|
|
|
litex_automount_event(SDIO_SLOTNO, cd);
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: litex_cardinserted
|
|
*
|
|
* Description:
|
|
* Check if a card is inserted into the selected MMCSD slot
|
|
*
|
|
****************************************************************************/
|
|
|
|
bool litex_cardinserted(int slotno)
|
|
{
|
|
return litex_sdio_get_card_detect();
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: litex_sdio_initialize
|
|
*
|
|
* Description:
|
|
* Initialize SDIO-based MMC/SD card support
|
|
*
|
|
****************************************************************************/
|
|
|
|
int litex_sdio_initialize(void)
|
|
{
|
|
int ret = 0;
|
|
struct sdio_dev_s *sdio_dev;
|
|
|
|
finfo("Initializing SDIO slot %d\n", SDIO_SLOTNO);
|
|
sdio_dev = sdio_initialize(SDIO_SLOTNO);
|
|
if (sdio_dev == NULL)
|
|
{
|
|
ferr("ERROR: Failed to initialize SDIO slot %d\n", SDIO_SLOTNO);
|
|
return -ENODEV;
|
|
}
|
|
|
|
finfo("Bind SDIO to the MMC/SD driver, minor=%d\n", SDIO_MINOR);
|
|
ret = mmcsd_slotinitialize(SDIO_MINOR, sdio_dev);
|
|
if (ret != OK)
|
|
{
|
|
ferr("ERROR: Failed to bind SDIO to the MMC/SD driver: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
litex_sdio_set_card_isr(sdio_dev, &litex_sdio_card_isr_callback, sdio_dev);
|
|
|
|
finfo("Successfully bound SDIO to the MMC/SD driver\n");
|
|
|
|
/* Assume that the SD card is inserted.
|
|
* The Arty A7 board doesnt have the CD pin wired.
|
|
*/
|
|
|
|
sdio_mediachange(sdio_dev, litex_sdio_get_card_detect());
|
|
|
|
return OK;
|
|
}
|
|
|
|
#endif /* HAVE_SDMMC */
|