linux/drivers/media/mmc/siano/smssdio.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  smssdio.c - Siano 1xxx SDIO interface driver
 *
 *  Copyright 2008 Pierre Ossman
 *
 * Based on code by Siano Mobile Silicon, Inc.,
 * Copyright (C) 2006-2008, Uri Shkolnik
 *
 * This hardware is a bit odd in that all transfers should be done
 * to/from the SMSSDIO_DATA register, yet the "increase address" bit
 * always needs to be set.
 *
 * Also, buffers from the card are always aligned to 128 byte
 * boundaries.
 */

/*
 * General cleanup notes:
 *
 * - only typedefs should be name *_t
 *
 * - use ERR_PTR and friends for smscore_register_device()
 *
 * - smscore_getbuffer should zero fields
 *
 * Fix stop command
 */

#include "smscoreapi.h"

#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <linux/firmware.h>
#include <linux/delay.h>
#include <linux/mmc/card.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/module.h>

#include "sms-cards.h"
#include "smsendian.h"

/* Registers */

#define SMSSDIO_DATA …
#define SMSSDIO_INT …
#define SMSSDIO_BLOCK_SIZE …

static const struct sdio_device_id smssdio_ids[] = …;

MODULE_DEVICE_TABLE(sdio, smssdio_ids);

struct smssdio_device { … };

/*******************************************************************/
/* Siano core callbacks                                            */
/*******************************************************************/

static int smssdio_sendrequest(void *context, void *buffer, size_t size)
{ … }

/*******************************************************************/
/* SDIO callbacks                                                  */
/*******************************************************************/

static void smssdio_interrupt(struct sdio_func *func)
{ … }

static int smssdio_probe(struct sdio_func *func,
			 const struct sdio_device_id *id)
{ … }

static void smssdio_remove(struct sdio_func *func)
{ … }

static struct sdio_driver smssdio_driver = …;
module_sdio_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;