linux/drivers/memstick/host/tifm_ms.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *  TI FlashMedia driver
 *
 *  Copyright (C) 2007 Alex Dubov <[email protected]>
 *
 * Special thanks to Carlos Corbacho for providing various MemoryStick cards
 * that made this driver possible.
 */

#include <linux/tifm.h>
#include <linux/memstick.h>
#include <linux/highmem.h>
#include <linux/scatterlist.h>
#include <linux/log2.h>
#include <linux/module.h>
#include <asm/io.h>

#define DRIVER_NAME …

static bool no_dma;
module_param(no_dma, bool, 0644);

/*
 * Some control bits of TIFM appear to conform to Sony's reference design,
 * so I'm just assuming they all are.
 */

#define TIFM_MS_STAT_DRQ …
#define TIFM_MS_STAT_MSINT …
#define TIFM_MS_STAT_RDY …
#define TIFM_MS_STAT_CRC …
#define TIFM_MS_STAT_TOE …
#define TIFM_MS_STAT_EMP …
#define TIFM_MS_STAT_FUL …
#define TIFM_MS_STAT_CED …
#define TIFM_MS_STAT_ERR …
#define TIFM_MS_STAT_BRQ …
#define TIFM_MS_STAT_CNK …

#define TIFM_MS_SYS_DMA …
#define TIFM_MS_SYS_RESET …
#define TIFM_MS_SYS_SRAC …
#define TIFM_MS_SYS_INTEN …
#define TIFM_MS_SYS_NOCRC …
#define TIFM_MS_SYS_INTCLR …
#define TIFM_MS_SYS_MSIEN …
#define TIFM_MS_SYS_FCLR …
#define TIFM_MS_SYS_FDIR …
#define TIFM_MS_SYS_DAM …
#define TIFM_MS_SYS_DRM …
#define TIFM_MS_SYS_DRQSL …
#define TIFM_MS_SYS_REI …
#define TIFM_MS_SYS_REO …
#define TIFM_MS_SYS_BSY_MASK …

#define TIFM_MS_SYS_FIFO …

/* Hardware flags */
enum { … };

struct tifm_ms { … };

static unsigned int tifm_ms_read_data(struct tifm_ms *host,
				      unsigned char *buf, unsigned int length)
{ … }

static unsigned int tifm_ms_write_data(struct tifm_ms *host,
				       unsigned char *buf, unsigned int length)
{ … }

static unsigned int tifm_ms_transfer_data(struct tifm_ms *host)
{ … }

static int tifm_ms_issue_cmd(struct tifm_ms *host)
{ … }

static void tifm_ms_complete_cmd(struct tifm_ms *host)
{ … }

static int tifm_ms_check_status(struct tifm_ms *host)
{ … }

/* Called from interrupt handler */
static void tifm_ms_data_event(struct tifm_dev *sock)
{ … }


/* Called from interrupt handler */
static void tifm_ms_card_event(struct tifm_dev *sock)
{ … }

static void tifm_ms_req_tasklet(unsigned long data)
{ … }

static void tifm_ms_dummy_submit(struct memstick_host *msh)
{ … }

static void tifm_ms_submit_req(struct memstick_host *msh)
{ … }

static int tifm_ms_set_param(struct memstick_host *msh,
			     enum memstick_param param,
			     int value)
{ … }

static void tifm_ms_abort(struct timer_list *t)
{ … }

static int tifm_ms_probe(struct tifm_dev *sock)
{ … }

static void tifm_ms_remove(struct tifm_dev *sock)
{ … }

#ifdef CONFIG_PM

static int tifm_ms_suspend(struct tifm_dev *sock, pm_message_t state)
{ … }

static int tifm_ms_resume(struct tifm_dev *sock)
{ … }

#else

#define tifm_ms_suspend …
#define tifm_ms_resume …

#endif /* CONFIG_PM */

static struct tifm_device_id tifm_ms_id_tbl[] = …;

static struct tifm_driver tifm_ms_driver = …;

static int __init tifm_ms_init(void)
{ … }

static void __exit tifm_ms_exit(void)
{ … }

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_DEVICE_TABLE(tifm, tifm_ms_id_tbl);

module_init(…) …;
module_exit(tifm_ms_exit);