include/linux/memstick.h - kernel/msm-4.9 - Gitiles

 /*
  *  Sony MemoryStick support
  *
  *  Copyright (C) 2007 Alex Dubov <oakad@yahoo.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
  */

 #ifndef _MEMSTICK_H
 #define _MEMSTICK_H

 #include <linux/workqueue.h>
 #include <linux/scatterlist.h>
 #include <linux/device.h>

 /*** Hardware based structures ***/

 struct ms_status_register {
 	unsigned char reserved;
 	unsigned char interrupt;
 #define MEMSTICK_INT_CMDNAK 0x01
 #define MEMSTICK_INT_IOREQ  0x08
 #define MEMSTICK_INT_IOBREQ 0x10
 #define MEMSTICK_INT_BREQ   0x20
 #define MEMSTICK_INT_ERR    0x40
 #define MEMSTICK_INT_CED    0x80

 	unsigned char status0;
 #define MEMSTICK_STATUS0_WP  0x01
 #define MEMSTICK_STATUS0_SL  0x02
 #define MEMSTICK_STATUS0_BF  0x10
 #define MEMSTICK_STATUS0_BE  0x20
 #define MEMSTICK_STATUS0_FB0 0x40
 #define MEMSTICK_STATUS0_MB  0x80

 	unsigned char status1;
 #define MEMSTICK_STATUS1_UCFG 0x01
 #define MEMSTICK_STATUS1_FGER 0x02
 #define MEMSTICK_STATUS1_UCEX 0x04
 #define MEMSTICK_STATUS1_EXER 0x08
 #define MEMSTICK_STATUS1_UCDT 0x10
 #define MEMSTICK_STATUS1_DTER 0x20
 #define MEMSTICK_STATUS1_FB1  0x40
 #define MEMSTICK_STATUS1_MB   0x80
 } __attribute__((packed));

 struct ms_id_register {
 	unsigned char type;
 	unsigned char if_mode;
 	unsigned char category;
 	unsigned char class;
 } __attribute__((packed));

 struct ms_param_register {
 	unsigned char system;
 #define MEMSTICK_SYS_PAM  0x08
 #define MEMSTICK_SYS_BAMD 0x80

 	unsigned char block_address_msb;
 	unsigned short block_address;
 	unsigned char cp;
 #define MEMSTICK_CP_BLOCK     0x00
 #define MEMSTICK_CP_PAGE      0x20
 #define MEMSTICK_CP_EXTRA     0x40
 #define MEMSTICK_CP_OVERWRITE 0x80

 	unsigned char page_address;
 } __attribute__((packed));

 struct ms_extra_data_register {
 	unsigned char  overwrite_flag;
 #define MEMSTICK_OVERWRITE_UDST  0x10
 #define MEMSTICK_OVERWRITE_PGST1 0x20
 #define MEMSTICK_OVERWRITE_PGST0 0x40
 #define MEMSTICK_OVERWRITE_BKST  0x80

 	unsigned char  management_flag;
 #define MEMSTICK_MANAGEMENT_SYSFLG 0x04
 #define MEMSTICK_MANAGEMENT_ATFLG  0x08
 #define MEMSTICK_MANAGEMENT_SCMS1  0x10
 #define MEMSTICK_MANAGEMENT_SCMS0  0x20

 	unsigned short logical_address;
 } __attribute__((packed));

 struct ms_register {
 	struct ms_status_register     status;
 	struct ms_id_register         id;
 	unsigned char                 reserved[8];
 	struct ms_param_register      param;
 	struct ms_extra_data_register extra_data;
 } __attribute__((packed));

 struct mspro_param_register {
 	unsigned char  system;
 #define MEMSTICK_SYS_PAR4   0x00
 #define MEMSTICK_SYS_PAR8   0x40
 #define MEMSTICK_SYS_SERIAL 0x80

 	__be16 data_count;
 	__be32 data_address;
 	unsigned char  tpc_param;
 } __attribute__((packed));

 struct mspro_io_info_register {
 	unsigned char version;
 	unsigned char io_category;
 	unsigned char current_req;
 	unsigned char card_opt_info;
 	unsigned char rdy_wait_time;
 } __attribute__((packed));

 struct mspro_io_func_register {
 	unsigned char func_enable;
 	unsigned char func_select;
 	unsigned char func_intmask;
 	unsigned char transfer_mode;
 } __attribute__((packed));

 struct mspro_io_cmd_register {
 	unsigned short tpc_param;
 	unsigned short data_count;
 	unsigned int   data_address;
 } __attribute__((packed));

 struct mspro_register {
 	struct ms_status_register     status;
 	struct ms_id_register         id;
 	unsigned char                 reserved0[8];
 	struct mspro_param_register   param;
 	unsigned char                 reserved1[8];
 	struct mspro_io_info_register io_info;
 	struct mspro_io_func_register io_func;
 	unsigned char                 reserved2[7];
 	struct mspro_io_cmd_register  io_cmd;
 	unsigned char                 io_int;
 	unsigned char                 io_int_func;
 } __attribute__((packed));

 struct ms_register_addr {
 	unsigned char r_offset;
 	unsigned char r_length;
 	unsigned char w_offset;
 	unsigned char w_length;
 } __attribute__((packed));

 enum memstick_tpc {
 	MS_TPC_READ_MG_STATUS   = 0x01,
 	MS_TPC_READ_LONG_DATA   = 0x02,
 	MS_TPC_READ_SHORT_DATA  = 0x03,
 	MS_TPC_READ_MG_DATA     = 0x03,
 	MS_TPC_READ_REG         = 0x04,
 	MS_TPC_READ_QUAD_DATA   = 0x05,
 	MS_TPC_READ_IO_DATA     = 0x05,
 	MS_TPC_GET_INT          = 0x07,
 	MS_TPC_SET_RW_REG_ADRS  = 0x08,
 	MS_TPC_EX_SET_CMD       = 0x09,
 	MS_TPC_WRITE_QUAD_DATA  = 0x0a,
 	MS_TPC_WRITE_IO_DATA    = 0x0a,
 	MS_TPC_WRITE_REG        = 0x0b,
 	MS_TPC_WRITE_SHORT_DATA = 0x0c,
 	MS_TPC_WRITE_MG_DATA    = 0x0c,
 	MS_TPC_WRITE_LONG_DATA  = 0x0d,
 	MS_TPC_SET_CMD          = 0x0e
 };

 enum memstick_command {
 	MS_CMD_BLOCK_END       = 0x33,
 	MS_CMD_RESET           = 0x3c,
 	MS_CMD_BLOCK_WRITE     = 0x55,
 	MS_CMD_SLEEP           = 0x5a,
 	MS_CMD_BLOCK_ERASE     = 0x99,
 	MS_CMD_BLOCK_READ      = 0xaa,
 	MS_CMD_CLEAR_BUF       = 0xc3,
 	MS_CMD_FLASH_STOP      = 0xcc,
 	MS_CMD_LOAD_ID         = 0x60,
 	MS_CMD_CMP_ICV         = 0x7f,
 	MSPRO_CMD_FORMAT       = 0x10,
 	MSPRO_CMD_SLEEP        = 0x11,
 	MSPRO_CMD_WAKEUP       = 0x12,
 	MSPRO_CMD_READ_DATA    = 0x20,
 	MSPRO_CMD_WRITE_DATA   = 0x21,
 	MSPRO_CMD_READ_ATRB    = 0x24,
 	MSPRO_CMD_STOP         = 0x25,
 	MSPRO_CMD_ERASE        = 0x26,
 	MSPRO_CMD_READ_QUAD    = 0x27,
 	MSPRO_CMD_WRITE_QUAD   = 0x28,
 	MSPRO_CMD_SET_IBD      = 0x46,
 	MSPRO_CMD_GET_IBD      = 0x47,
 	MSPRO_CMD_IN_IO_DATA   = 0xb0,
 	MSPRO_CMD_OUT_IO_DATA  = 0xb1,
 	MSPRO_CMD_READ_IO_ATRB = 0xb2,
 	MSPRO_CMD_IN_IO_FIFO   = 0xb3,
 	MSPRO_CMD_OUT_IO_FIFO  = 0xb4,
 	MSPRO_CMD_IN_IOM       = 0xb5,
 	MSPRO_CMD_OUT_IOM      = 0xb6,
 };

 /*** Driver structures and functions ***/

 enum memstick_param { MEMSTICK_POWER = 1, MEMSTICK_INTERFACE };

 #define MEMSTICK_POWER_OFF 0
 #define MEMSTICK_POWER_ON  1

 #define MEMSTICK_SERIAL   0
 #define MEMSTICK_PAR4     1
 #define MEMSTICK_PAR8     2

 struct memstick_host;
 struct memstick_driver;

 struct memstick_device_id {
 	unsigned char match_flags;
 #define MEMSTICK_MATCH_ALL            0x01

 	unsigned char type;
 #define MEMSTICK_TYPE_LEGACY          0xff
 #define MEMSTICK_TYPE_DUO             0x00
 #define MEMSTICK_TYPE_PRO             0x01

 	unsigned char category;
 #define MEMSTICK_CATEGORY_STORAGE     0xff
 #define MEMSTICK_CATEGORY_STORAGE_DUO 0x00
 #define MEMSTICK_CATEGORY_IO          0x01
 #define MEMSTICK_CATEGORY_IO_PRO      0x10

 	unsigned char class;
 #define MEMSTICK_CLASS_FLASH          0xff
 #define MEMSTICK_CLASS_DUO            0x00
 #define MEMSTICK_CLASS_ROM            0x01
 #define MEMSTICK_CLASS_RO             0x02
 #define MEMSTICK_CLASS_WP             0x03
 };

 struct memstick_request {
 	unsigned char tpc;
 	unsigned char data_dir:1,
 		      need_card_int:1,
 		      long_data:1;
 	unsigned char int_reg;
 	int           error;
 	union {
 		struct scatterlist sg;
 		struct {
 			unsigned char data_len;
 			unsigned char data[15];
 		};
 	};
 };

 struct memstick_dev {
 	struct memstick_device_id id;
 	struct memstick_host     *host;
 	struct ms_register_addr  reg_addr;
 	struct completion        mrq_complete;
 	struct memstick_request  current_mrq;

 	/* Check that media driver is still willing to operate the device. */
 	int                      (*check)(struct memstick_dev *card);
 	/* Get next request from the media driver.                         */
 	int                      (*next_request)(struct memstick_dev *card,
 						 struct memstick_request **mrq);
 	/* Tell the media driver to stop doing things                      */
 	void                     (*stop)(struct memstick_dev *card);
 	/* Allow the media driver to continue                              */
 	void                     (*start)(struct memstick_dev *card);

 	struct device            dev;
 };

 struct memstick_host {
 	struct mutex        lock;
 	unsigned int        id;
 	unsigned int        caps;
 #define MEMSTICK_CAP_AUTO_GET_INT  1
 #define MEMSTICK_CAP_PAR4          2
 #define MEMSTICK_CAP_PAR8          4

 	struct work_struct  media_checker;
 	struct device       dev;

 	struct memstick_dev *card;
 	unsigned int        retries;

 	/* Notify the host that some requests are pending. */
 	void                (*request)(struct memstick_host *host);
 	/* Set host IO parameters (power, clock, etc).     */
 	int                 (*set_param)(struct memstick_host *host,
 					 enum memstick_param param,
 					 int value);
 	unsigned long       private[0] ____cacheline_aligned;
 };

 struct memstick_driver {
 	struct memstick_device_id *id_table;
 	int                       (*probe)(struct memstick_dev *card);
 	void                      (*remove)(struct memstick_dev *card);
 	int                       (*suspend)(struct memstick_dev *card,
 					     pm_message_t state);
 	int                       (*resume)(struct memstick_dev *card);

 	struct device_driver      driver;
 };

 int memstick_register_driver(struct memstick_driver *drv);
 void memstick_unregister_driver(struct memstick_driver *drv);

 struct memstick_host *memstick_alloc_host(unsigned int extra,
 					  struct device *dev);

 int memstick_add_host(struct memstick_host *host);
 void memstick_remove_host(struct memstick_host *host);
 void memstick_free_host(struct memstick_host *host);
 void memstick_detect_change(struct memstick_host *host);
 void memstick_suspend_host(struct memstick_host *host);
 void memstick_resume_host(struct memstick_host *host);

 void memstick_init_req_sg(struct memstick_request *mrq, unsigned char tpc,
 			  const struct scatterlist *sg);
 void memstick_init_req(struct memstick_request *mrq, unsigned char tpc,
 		       const void *buf, size_t length);
 int memstick_next_req(struct memstick_host *host,
 		      struct memstick_request **mrq);
 void memstick_new_req(struct memstick_host *host);

 int memstick_set_rw_addr(struct memstick_dev *card);

 static inline void *memstick_priv(struct memstick_host *host)
 {
 	return (void *)host->private;
 }

 static inline void *memstick_get_drvdata(struct memstick_dev *card)
 {
 	return dev_get_drvdata(&card->dev);
 }

 static inline void memstick_set_drvdata(struct memstick_dev *card, void *data)
 {
 	dev_set_drvdata(&card->dev, data);
 }

 #endif
	/*
	* Sony MemoryStick support
	*
	* Copyright (C) 2007 Alex Dubov <oakad@yahoo.com>
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*
	*/

	#ifndef _MEMSTICK_H
	#define _MEMSTICK_H

	#include <linux/workqueue.h>
	#include <linux/scatterlist.h>
	#include <linux/device.h>

	/* Hardware based structures */

	struct ms_status_register {
	unsigned char reserved;
	unsigned char interrupt;
	#define MEMSTICK_INT_CMDNAK 0x01
	#define MEMSTICK_INT_IOREQ 0x08
	#define MEMSTICK_INT_IOBREQ 0x10
	#define MEMSTICK_INT_BREQ 0x20
	#define MEMSTICK_INT_ERR 0x40
	#define MEMSTICK_INT_CED 0x80

	unsigned char status0;
	#define MEMSTICK_STATUS0_WP 0x01
	#define MEMSTICK_STATUS0_SL 0x02
	#define MEMSTICK_STATUS0_BF 0x10
	#define MEMSTICK_STATUS0_BE 0x20
	#define MEMSTICK_STATUS0_FB0 0x40
	#define MEMSTICK_STATUS0_MB 0x80

	unsigned char status1;
	#define MEMSTICK_STATUS1_UCFG 0x01
	#define MEMSTICK_STATUS1_FGER 0x02
	#define MEMSTICK_STATUS1_UCEX 0x04
	#define MEMSTICK_STATUS1_EXER 0x08
	#define MEMSTICK_STATUS1_UCDT 0x10
	#define MEMSTICK_STATUS1_DTER 0x20
	#define MEMSTICK_STATUS1_FB1 0x40
	#define MEMSTICK_STATUS1_MB 0x80
	} __attribute__((packed));

	struct ms_id_register {
	unsigned char type;
	unsigned char if_mode;
	unsigned char category;
	unsigned char class;
	} __attribute__((packed));

	struct ms_param_register {
	unsigned char system;
	#define MEMSTICK_SYS_PAM 0x08
	#define MEMSTICK_SYS_BAMD 0x80

	unsigned char block_address_msb;
	unsigned short block_address;
	unsigned char cp;
	#define MEMSTICK_CP_BLOCK 0x00
	#define MEMSTICK_CP_PAGE 0x20
	#define MEMSTICK_CP_EXTRA 0x40
	#define MEMSTICK_CP_OVERWRITE 0x80

	unsigned char page_address;
	} __attribute__((packed));

	struct ms_extra_data_register {
	unsigned char overwrite_flag;
	#define MEMSTICK_OVERWRITE_UDST 0x10
	#define MEMSTICK_OVERWRITE_PGST1 0x20
	#define MEMSTICK_OVERWRITE_PGST0 0x40
	#define MEMSTICK_OVERWRITE_BKST 0x80

	unsigned char management_flag;
	#define MEMSTICK_MANAGEMENT_SYSFLG 0x04
	#define MEMSTICK_MANAGEMENT_ATFLG 0x08
	#define MEMSTICK_MANAGEMENT_SCMS1 0x10
	#define MEMSTICK_MANAGEMENT_SCMS0 0x20

	unsigned short logical_address;
	} __attribute__((packed));

	struct ms_register {
	struct ms_status_register status;
	struct ms_id_register id;
	unsigned char reserved[8];
	struct ms_param_register param;
	struct ms_extra_data_register extra_data;
	} __attribute__((packed));

	struct mspro_param_register {
	unsigned char system;
	#define MEMSTICK_SYS_PAR4 0x00
	#define MEMSTICK_SYS_PAR8 0x40
	#define MEMSTICK_SYS_SERIAL 0x80

	__be16 data_count;
	__be32 data_address;
	unsigned char tpc_param;
	} __attribute__((packed));

	struct mspro_io_info_register {
	unsigned char version;
	unsigned char io_category;
	unsigned char current_req;
	unsigned char card_opt_info;
	unsigned char rdy_wait_time;
	} __attribute__((packed));

	struct mspro_io_func_register {
	unsigned char func_enable;
	unsigned char func_select;
	unsigned char func_intmask;
	unsigned char transfer_mode;
	} __attribute__((packed));

	struct mspro_io_cmd_register {
	unsigned short tpc_param;
	unsigned short data_count;
	unsigned int data_address;
	} __attribute__((packed));

	struct mspro_register {
	struct ms_status_register status;
	struct ms_id_register id;
	unsigned char reserved0[8];
	struct mspro_param_register param;
	unsigned char reserved1[8];
	struct mspro_io_info_register io_info;
	struct mspro_io_func_register io_func;
	unsigned char reserved2[7];
	struct mspro_io_cmd_register io_cmd;
	unsigned char io_int;
	unsigned char io_int_func;
	} __attribute__((packed));

	struct ms_register_addr {
	unsigned char r_offset;
	unsigned char r_length;
	unsigned char w_offset;
	unsigned char w_length;
	} __attribute__((packed));

	enum memstick_tpc {
	MS_TPC_READ_MG_STATUS = 0x01,
	MS_TPC_READ_LONG_DATA = 0x02,
	MS_TPC_READ_SHORT_DATA = 0x03,
	MS_TPC_READ_MG_DATA = 0x03,
	MS_TPC_READ_REG = 0x04,
	MS_TPC_READ_QUAD_DATA = 0x05,
	MS_TPC_READ_IO_DATA = 0x05,
	MS_TPC_GET_INT = 0x07,
	MS_TPC_SET_RW_REG_ADRS = 0x08,
	MS_TPC_EX_SET_CMD = 0x09,
	MS_TPC_WRITE_QUAD_DATA = 0x0a,
	MS_TPC_WRITE_IO_DATA = 0x0a,
	MS_TPC_WRITE_REG = 0x0b,
	MS_TPC_WRITE_SHORT_DATA = 0x0c,
	MS_TPC_WRITE_MG_DATA = 0x0c,
	MS_TPC_WRITE_LONG_DATA = 0x0d,
	MS_TPC_SET_CMD = 0x0e
	};

	enum memstick_command {
	MS_CMD_BLOCK_END = 0x33,
	MS_CMD_RESET = 0x3c,
	MS_CMD_BLOCK_WRITE = 0x55,
	MS_CMD_SLEEP = 0x5a,
	MS_CMD_BLOCK_ERASE = 0x99,
	MS_CMD_BLOCK_READ = 0xaa,
	MS_CMD_CLEAR_BUF = 0xc3,
	MS_CMD_FLASH_STOP = 0xcc,
	MS_CMD_LOAD_ID = 0x60,
	MS_CMD_CMP_ICV = 0x7f,
	MSPRO_CMD_FORMAT = 0x10,
	MSPRO_CMD_SLEEP = 0x11,
	MSPRO_CMD_WAKEUP = 0x12,
	MSPRO_CMD_READ_DATA = 0x20,
	MSPRO_CMD_WRITE_DATA = 0x21,
	MSPRO_CMD_READ_ATRB = 0x24,
	MSPRO_CMD_STOP = 0x25,
	MSPRO_CMD_ERASE = 0x26,
	MSPRO_CMD_READ_QUAD = 0x27,
	MSPRO_CMD_WRITE_QUAD = 0x28,
	MSPRO_CMD_SET_IBD = 0x46,
	MSPRO_CMD_GET_IBD = 0x47,
	MSPRO_CMD_IN_IO_DATA = 0xb0,
	MSPRO_CMD_OUT_IO_DATA = 0xb1,
	MSPRO_CMD_READ_IO_ATRB = 0xb2,
	MSPRO_CMD_IN_IO_FIFO = 0xb3,
	MSPRO_CMD_OUT_IO_FIFO = 0xb4,
	MSPRO_CMD_IN_IOM = 0xb5,
	MSPRO_CMD_OUT_IOM = 0xb6,
	};

	/* Driver structures and functions */

	enum memstick_param { MEMSTICK_POWER = 1, MEMSTICK_INTERFACE };

	#define MEMSTICK_POWER_OFF 0
	#define MEMSTICK_POWER_ON 1

	#define MEMSTICK_SERIAL 0
	#define MEMSTICK_PAR4 1
	#define MEMSTICK_PAR8 2

	struct memstick_host;
	struct memstick_driver;

	struct memstick_device_id {
	unsigned char match_flags;
	#define MEMSTICK_MATCH_ALL 0x01

	unsigned char type;
	#define MEMSTICK_TYPE_LEGACY 0xff
	#define MEMSTICK_TYPE_DUO 0x00
	#define MEMSTICK_TYPE_PRO 0x01

	unsigned char category;
	#define MEMSTICK_CATEGORY_STORAGE 0xff
	#define MEMSTICK_CATEGORY_STORAGE_DUO 0x00
	#define MEMSTICK_CATEGORY_IO 0x01
	#define MEMSTICK_CATEGORY_IO_PRO 0x10

	unsigned char class;
	#define MEMSTICK_CLASS_FLASH 0xff
	#define MEMSTICK_CLASS_DUO 0x00
	#define MEMSTICK_CLASS_ROM 0x01
	#define MEMSTICK_CLASS_RO 0x02
	#define MEMSTICK_CLASS_WP 0x03
	};

	struct memstick_request {
	unsigned char tpc;
	unsigned char data_dir:1,
	need_card_int:1,
	long_data:1;
	unsigned char int_reg;
	int error;
	union {
	struct scatterlist sg;
	struct {
	unsigned char data_len;
	unsigned char data[15];
	};
	};
	};

	struct memstick_dev {
	struct memstick_device_id id;
	struct memstick_host *host;
	struct ms_register_addr reg_addr;
	struct completion mrq_complete;
	struct memstick_request current_mrq;

	/* Check that media driver is still willing to operate the device. */
	int (check)(struct memstick_dev card);
	/* Get next request from the media driver. */
	int (next_request)(struct memstick_dev card,
	struct memstick_request **mrq);
	/* Tell the media driver to stop doing things */
	void (stop)(struct memstick_dev card);
	/* Allow the media driver to continue */
	void (start)(struct memstick_dev card);

	struct device dev;
	};

	struct memstick_host {
	struct mutex lock;
	unsigned int id;
	unsigned int caps;
	#define MEMSTICK_CAP_AUTO_GET_INT 1
	#define MEMSTICK_CAP_PAR4 2
	#define MEMSTICK_CAP_PAR8 4

	struct work_struct media_checker;
	struct device dev;

	struct memstick_dev *card;
	unsigned int retries;

	/* Notify the host that some requests are pending. */
	void (request)(struct memstick_host host);
	/* Set host IO parameters (power, clock, etc). */
	int (set_param)(struct memstick_host host,
	enum memstick_param param,
	int value);
	unsigned long private[0] ____cacheline_aligned;
	};

	struct memstick_driver {
	struct memstick_device_id *id_table;
	int (probe)(struct memstick_dev card);
	void (remove)(struct memstick_dev card);
	int (suspend)(struct memstick_dev card,
	pm_message_t state);
	int (resume)(struct memstick_dev card);

	struct device_driver driver;
	};

	int memstick_register_driver(struct memstick_driver *drv);
	void memstick_unregister_driver(struct memstick_driver *drv);

	struct memstick_host *memstick_alloc_host(unsigned int extra,
	struct device *dev);

	int memstick_add_host(struct memstick_host *host);
	void memstick_remove_host(struct memstick_host *host);
	void memstick_free_host(struct memstick_host *host);
	void memstick_detect_change(struct memstick_host *host);
	void memstick_suspend_host(struct memstick_host *host);
	void memstick_resume_host(struct memstick_host *host);

	void memstick_init_req_sg(struct memstick_request *mrq, unsigned char tpc,
	const struct scatterlist *sg);
	void memstick_init_req(struct memstick_request *mrq, unsigned char tpc,
	const void *buf, size_t length);
	int memstick_next_req(struct memstick_host *host,
	struct memstick_request **mrq);
	void memstick_new_req(struct memstick_host *host);

	int memstick_set_rw_addr(struct memstick_dev *card);

	static inline void memstick_priv(struct memstick_host host)
	{
	return (void *)host->private;
	}

	static inline void memstick_get_drvdata(struct memstick_dev card)
	{
	return dev_get_drvdata(&card->dev);
	}

	static inline void memstick_set_drvdata(struct memstick_dev card, void data)
	{
	dev_set_drvdata(&card->dev, data);
	}

	#endif