/*
* 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 0x0001
#define MEMSTICK_INT_BREQ 0x0020
#define MEMSTICK_INT_ERR 0x0040
#define MEMSTICK_INT_CED 0x0080
unsigned char status0;
#define MEMSTICK_STATUS0_WP 0x0001
#define MEMSTICK_STATUS0_SL 0x0002
#define MEMSTICK_STATUS0_BF 0x0010
#define MEMSTICK_STATUS0_BE 0x0020
#define MEMSTICK_STATUS0_FB0 0x0040
#define MEMSTICK_STATUS0_MB 0x0080
unsigned char status1;
#define MEMSTICK_STATUS1_UCFG 0x0001
#define MEMSTICK_STATUS1_FGER 0x0002
#define MEMSTICK_STATUS1_UCEX 0x0004
#define MEMSTICK_STATUS1_EXER 0x0008
#define MEMSTICK_STATUS1_UCDT 0x0010
#define MEMSTICK_STATUS1_DTER 0x0020
#define MEMSTICK_STATUS1_FBI 0x0040
#define MEMSTICK_STATUS1_MB 0x0080
} __attribute__((packed));
struct ms_id_register {
unsigned char type;
unsigned char reserved;
unsigned char category;
unsigned char class;
} __attribute__((packed));
struct ms_param_register {
unsigned char system;
unsigned char block_address_msb;
unsigned short block_address;
unsigned char cp;
#define MEMSTICK_CP_BLOCK 0x0000
#define MEMSTICK_CP_PAGE 0x0020
#define MEMSTICK_CP_EXTRA 0x0040
#define MEMSTICK_CP_OVERWRITE 0x0080
unsigned char page_address;
} __attribute__((packed));
struct ms_extra_data_register {
unsigned char overwrite_flag;
#define MEMSTICK_OVERWRITE_UPDATA 0x0010
#define MEMSTICK_OVERWRITE_PAGE 0x0060
#define MEMSTICK_OVERWRITE_BLOCK 0x0080
unsigned char management_flag;
#define MEMSTICK_MANAGEMENT_SYSTEM 0x0004
#define MEMSTICK_MANAGEMENT_TRANS_TABLE 0x0008
#define MEMSTICK_MANAGEMENT_COPY 0x0010
#define MEMSTICK_MANAGEMENT_ACCESS 0x0020
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;
unsigned short data_count;
unsigned int data_address;
unsigned char cmd_param;
} __attribute__((packed));
struct mspro_register {
struct ms_status_register status;
struct ms_id_register id;
unsigned char reserved[8];
struct mspro_param_register param;
} __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 {
MS_TPC_READ_LONG_DATA = 0x02,
MS_TPC_READ_SHORT_DATA = 0x03,
MS_TPC_READ_REG = 0x04,
MS_TPC_READ_IO_DATA = 0x05, /* unverified */
MS_TPC_GET_INT = 0x07,
MS_TPC_SET_RW_REG_ADRS = 0x08,
MS_TPC_EX_SET_CMD = 0x09,
MS_TPC_WRITE_IO_DATA = 0x0a, /* unverified */
MS_TPC_WRITE_REG = 0x0b,
MS_TPC_WRITE_SHORT_DATA = 0x0c,
MS_TPC_WRITE_LONG_DATA = 0x0d,
MS_TPC_SET_CMD = 0x0e
};
enum {
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,
MSPRO_CMD_FORMAT = 0x10,
MSPRO_CMD_SLEEP = 0x11,
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_SET_IBA = 0x46,
MSPRO_CMD_SET_IBD = 0x47
/*
MSPRO_CMD_RESET
MSPRO_CMD_WAKEUP
MSPRO_CMD_IN_IO_DATA
MSPRO_CMD_OUT_IO_DATA
MSPRO_CMD_READ_IO_ATRB
MSPRO_CMD_IN_IO_FIFO
MSPRO_CMD_OUT_IO_FIFO
MSPRO_CMD_IN_IOM
MSPRO_CMD_OUT_IOM
*/
};
/*** Driver structures and functions ***/
#define MEMSTICK_PART_SHIFT 3
enum memstick_param { MEMSTICK_POWER = 1, MEMSTICK_INTERFACE };
#define MEMSTICK_POWER_OFF 0
#define MEMSTICK_POWER_ON 1
#define MEMSTICK_SERIAL 0
#define MEMSTICK_PARALLEL 1
struct memstick_host;
struct memstick_driver;
#define MEMSTICK_MATCH_ALL 0x01
#define MEMSTICK_TYPE_LEGACY 0xff
#define MEMSTICK_TYPE_DUO 0x00
#define MEMSTICK_TYPE_PRO 0x01
#define MEMSTICK_CATEGORY_STORAGE 0xff
#define MEMSTICK_CATEGORY_STORAGE_DUO 0x00
#define MEMSTICK_CLASS_GENERIC 0xff
#define MEMSTICK_CLASS_GENERIC_DUO 0x00
struct memstick_device_id {
unsigned char match_flags;
unsigned char type;
unsigned char category;
unsigned char class;
};
struct memstick_request {
unsigned char tpc;
unsigned char data_dir:1,
need_card_int:1,
get_int_reg:1,
io_type:2;
#define MEMSTICK_IO_NONE 0
#define MEMSTICK_IO_VAL 1
#define MEMSTICK_IO_SG 2
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);
struct device dev;
};
struct memstick_host {
struct mutex lock;
unsigned int id;
unsigned int caps;
#define MEMSTICK_CAP_PARALLEL 1
#define MEMSTICK_CAP_AUTO_GET_INT 2
struct work_struct media_checker;
struct class_device cdev;
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). */
void (*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_init_req_sg(struct memstick_request *mrq, unsigned char tpc,
struct scatterlist *sg);
void memstick_init_req(struct memstick_request *mrq, unsigned char tpc,
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