kernel/drivers/memstick/core/ms_block.h

   1 /*
   2  *  ms_block.h - Sony MemoryStick (legacy) storage support
   3
   4  *  Copyright (C) 2013 Maxim Levitsky <maximlevitsky@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * Minor portions of the driver are copied from mspro_block.c which is
  11  * Copyright (C) 2007 Alex Dubov <oakad@yahoo.com>
  12  *
  13  * Also ms structures were copied from old broken driver by same author
  14  * These probably come from MS spec
  15  *
  16  */
  17
  18 #ifndef MS_BLOCK_NEW_H
  19 #define MS_BLOCK_NEW_H
  20
  21 #define MS_BLOCK_MAX_SEGS      32
  22 #define MS_BLOCK_MAX_PAGES     ((2 << 16) - 1)
  23
  24 #define MS_BLOCK_MAX_BOOT_ADDR 0x000c
  25 #define MS_BLOCK_BOOT_ID       0x0001
  26 #define MS_BLOCK_INVALID       0xffff
  27 #define MS_MAX_ZONES           16
  28 #define MS_BLOCKS_IN_ZONE      512
  29
  30 #define MS_BLOCK_MAP_LINE_SZ   16
  31 #define MS_BLOCK_PART_SHIFT    3
  32
  33
  34 #define MEMSTICK_UNCORR_ERROR (MEMSTICK_STATUS1_UCFG | \
  35                 MEMSTICK_STATUS1_UCEX | MEMSTICK_STATUS1_UCDT)
  36
  37 #define MEMSTICK_CORR_ERROR (MEMSTICK_STATUS1_FGER | MEMSTICK_STATUS1_EXER | \
  38         MEMSTICK_STATUS1_DTER)
  39
  40 #define MEMSTICK_INT_ERROR (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)
  41
  42 #define MEMSTICK_OVERWRITE_FLAG_NORMAL \
  43         (MEMSTICK_OVERWRITE_PGST1 | \
  44         MEMSTICK_OVERWRITE_PGST0  | \
  45         MEMSTICK_OVERWRITE_BKST)
  46
  47 #define MEMSTICK_OV_PG_NORMAL \
  48         (MEMSTICK_OVERWRITE_PGST1 | MEMSTICK_OVERWRITE_PGST0)
  49
  50 #define MEMSTICK_MANAGMENT_FLAG_NORMAL \
  51         (MEMSTICK_MANAGEMENT_SYSFLG |  \
  52         MEMSTICK_MANAGEMENT_SCMS1   |  \
  53         MEMSTICK_MANAGEMENT_SCMS0)     \
  54
  55 struct ms_boot_header {
  56         unsigned short block_id;
  57         unsigned short format_reserved;
  58         unsigned char  reserved0[184];
  59         unsigned char  data_entry;
  60         unsigned char  reserved1[179];
  61 } __packed;
  62
  63
  64 struct ms_system_item {
  65         unsigned int  start_addr;
  66         unsigned int  data_size;
  67         unsigned char data_type_id;
  68         unsigned char reserved[3];
  69 } __packed;
  70
  71 struct ms_system_entry {
  72         struct ms_system_item disabled_block;
  73         struct ms_system_item cis_idi;
  74         unsigned char         reserved[24];
  75 } __packed;
  76
  77 struct ms_boot_attr_info {
  78         unsigned char      memorystick_class;
  79         unsigned char      format_unique_value1;
  80         unsigned short     block_size;
  81         unsigned short     number_of_blocks;
  82         unsigned short     number_of_effective_blocks;
  83         unsigned short     page_size;
  84         unsigned char      extra_data_size;
  85         unsigned char      format_unique_value2;
  86         unsigned char      assembly_time[8];
  87         unsigned char      format_unique_value3;
  88         unsigned char      serial_number[3];
  89         unsigned char      assembly_manufacturer_code;
  90         unsigned char      assembly_model_code[3];
  91         unsigned short     memory_manufacturer_code;
  92         unsigned short     memory_device_code;
  93         unsigned short     implemented_capacity;
  94         unsigned char      format_unique_value4[2];
  95         unsigned char      vcc;
  96         unsigned char      vpp;
  97         unsigned short     controller_number;
  98         unsigned short     controller_function;
  99         unsigned char      reserved0[9];
 100         unsigned char      transfer_supporting;
 101         unsigned short     format_unique_value5;
 102         unsigned char      format_type;
 103         unsigned char      memorystick_application;
 104         unsigned char      device_type;
 105         unsigned char      reserved1[22];
 106         unsigned char      format_uniqure_value6[2];
 107         unsigned char      reserved2[15];
 108 } __packed;
 109
 110 struct ms_cis_idi {
 111         unsigned short general_config;
 112         unsigned short logical_cylinders;
 113         unsigned short reserved0;
 114         unsigned short logical_heads;
 115         unsigned short track_size;
 116         unsigned short page_size;
 117         unsigned short pages_per_track;
 118         unsigned short msw;
 119         unsigned short lsw;
 120         unsigned short reserved1;
 121         unsigned char  serial_number[20];
 122         unsigned short buffer_type;
 123         unsigned short buffer_size_increments;
 124         unsigned short long_command_ecc;
 125         unsigned char  firmware_version[28];
 126         unsigned char  model_name[18];
 127         unsigned short reserved2[5];
 128         unsigned short pio_mode_number;
 129         unsigned short dma_mode_number;
 130         unsigned short field_validity;
 131         unsigned short current_logical_cylinders;
 132         unsigned short current_logical_heads;
 133         unsigned short current_pages_per_track;
 134         unsigned int   current_page_capacity;
 135         unsigned short mutiple_page_setting;
 136         unsigned int   addressable_pages;
 137         unsigned short single_word_dma;
 138         unsigned short multi_word_dma;
 139         unsigned char  reserved3[128];
 140 } __packed;
 141
 142
 143 struct ms_boot_page {
 144         struct ms_boot_header    header;
 145         struct ms_system_entry   entry;
 146         struct ms_boot_attr_info attr;
 147 } __packed;
 148
 149 struct msb_data {
 150         unsigned int                    usage_count;
 151         struct memstick_dev             *card;
 152         struct gendisk                  *disk;
 153         struct request_queue            *queue;
 154         spinlock_t                      q_lock;
 155         struct hd_geometry              geometry;
 156         struct attribute_group          attr_group;
 157         struct request                  *req;
 158         int                             caps;
 159         int                             disk_id;
 160
 161         /* IO */
 162         struct workqueue_struct         *io_queue;
 163         bool                            io_queue_stopped;
 164         struct work_struct              io_work;
 165         bool                            card_dead;
 166
 167         /* Media properties */
 168         struct ms_boot_page             *boot_page;
 169         u16                             boot_block_locations[2];
 170         int                             boot_block_count;
 171
 172         bool                            read_only;
 173         unsigned short                  page_size;
 174         int                             block_size;
 175         int                             pages_in_block;
 176         int                             zone_count;
 177         int                             block_count;
 178         int                             logical_block_count;
 179
 180         /* FTL tables */
 181         unsigned long                   *used_blocks_bitmap;
 182         unsigned long                   *erased_blocks_bitmap;
 183         u16                             *lba_to_pba_table;
 184         int                             free_block_count[MS_MAX_ZONES];
 185         bool                            ftl_initialized;
 186
 187         /* Cache */
 188         unsigned char                   *cache;
 189         unsigned long                   valid_cache_bitmap;
 190         int                             cache_block_lba;
 191         bool                            need_flush_cache;
 192         struct timer_list               cache_flush_timer;
 193
 194         /* Preallocated buffers */
 195         unsigned char                   *block_buffer;
 196         struct scatterlist              prealloc_sg[MS_BLOCK_MAX_SEGS+1];
 197
 198
 199         /* handler's local data */
 200         struct ms_register_addr         reg_addr;
 201         bool                            addr_valid;
 202
 203         u8                              command_value;
 204         bool                            command_need_oob;
 205         struct scatterlist              *current_sg;
 206         int                             current_sg_offset;
 207
 208         struct ms_register              regs;
 209         int                             current_page;
 210
 211         int                             state;
 212         int                             exit_error;
 213         bool                            int_polling;
 214         unsigned long                   int_timeout;
 215
 216 };
 217
 218 enum msb_readpage_states {
 219         MSB_RP_SEND_BLOCK_ADDRESS = 0,
 220         MSB_RP_SEND_READ_COMMAND,
 221
 222         MSB_RP_SEND_INT_REQ,
 223         MSB_RP_RECEIVE_INT_REQ_RESULT,
 224
 225         MSB_RP_SEND_READ_STATUS_REG,
 226         MSB_RP_RECEIVE_STATUS_REG,
 227
 228         MSB_RP_SEND_OOB_READ,
 229         MSB_RP_RECEIVE_OOB_READ,
 230
 231         MSB_RP_SEND_READ_DATA,
 232         MSB_RP_RECEIVE_READ_DATA,
 233 };
 234
 235 enum msb_write_block_states {
 236         MSB_WB_SEND_WRITE_PARAMS = 0,
 237         MSB_WB_SEND_WRITE_OOB,
 238         MSB_WB_SEND_WRITE_COMMAND,
 239
 240         MSB_WB_SEND_INT_REQ,
 241         MSB_WB_RECEIVE_INT_REQ,
 242
 243         MSB_WB_SEND_WRITE_DATA,
 244         MSB_WB_RECEIVE_WRITE_CONFIRMATION,
 245 };
 246
 247 enum msb_send_command_states {
 248         MSB_SC_SEND_WRITE_PARAMS,
 249         MSB_SC_SEND_WRITE_OOB,
 250         MSB_SC_SEND_COMMAND,
 251
 252         MSB_SC_SEND_INT_REQ,
 253         MSB_SC_RECEIVE_INT_REQ,
 254
 255 };
 256
 257 enum msb_reset_states {
 258         MSB_RS_SEND,
 259         MSB_RS_CONFIRM,
 260 };
 261
 262 enum msb_par_switch_states {
 263         MSB_PS_SEND_SWITCH_COMMAND,
 264         MSB_PS_SWICH_HOST,
 265         MSB_PS_CONFIRM,
 266 };
 267
 268 struct chs_entry {
 269         unsigned long size;
 270         unsigned char sec;
 271         unsigned short cyl;
 272         unsigned char head;
 273 };
 274
 275 static int msb_reset(struct msb_data *msb, bool full);
 276
 277 static int h_msb_default_bad(struct memstick_dev *card,
 278                                                 struct memstick_request **mrq);
 279
 280 #define __dbg(level, format, ...) \
 281         do { \
 282                 if (debug >= level) \
 283                         pr_err(format "\n", ## __VA_ARGS__); \
 284         } while (0)
 285
 286
 287 #define dbg(format, ...)                __dbg(1, format, ## __VA_ARGS__)
 288 #define dbg_verbose(format, ...)        __dbg(2, format, ## __VA_ARGS__)
 289
 290 #endif