diff options
Diffstat (limited to 'drivers/memstick/core/ms_block.h')
| -rw-r--r-- | drivers/memstick/core/ms_block.h | 290 |
1 files changed, 290 insertions, 0 deletions
diff --git a/drivers/memstick/core/ms_block.h b/drivers/memstick/core/ms_block.h new file mode 100644 index 000000000000..96e637550988 --- /dev/null +++ b/drivers/memstick/core/ms_block.h @@ -0,0 +1,290 @@ +/* + * ms_block.h - Sony MemoryStick (legacy) storage support + + * Copyright (C) 2013 Maxim Levitsky <maximlevitsky@gmail.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. + * + * Minor portions of the driver are copied from mspro_block.c which is + * Copyright (C) 2007 Alex Dubov <oakad@yahoo.com> + * + * Also ms structures were copied from old broken driver by same author + * These probably come from MS spec + * + */ + +#ifndef MS_BLOCK_NEW_H +#define MS_BLOCK_NEW_H + +#define MS_BLOCK_MAX_SEGS 32 +#define MS_BLOCK_MAX_PAGES ((2 << 16) - 1) + +#define MS_BLOCK_MAX_BOOT_ADDR 0x000c +#define MS_BLOCK_BOOT_ID 0x0001 +#define MS_BLOCK_INVALID 0xffff +#define MS_MAX_ZONES 16 +#define MS_BLOCKS_IN_ZONE 512 + +#define MS_BLOCK_MAP_LINE_SZ 16 +#define MS_BLOCK_PART_SHIFT 3 + + +#define MEMSTICK_UNCORR_ERROR (MEMSTICK_STATUS1_UCFG | \ + MEMSTICK_STATUS1_UCEX | MEMSTICK_STATUS1_UCDT) + +#define MEMSTICK_CORR_ERROR (MEMSTICK_STATUS1_FGER | MEMSTICK_STATUS1_EXER | \ + MEMSTICK_STATUS1_DTER) + +#define MEMSTICK_INT_ERROR (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR) + +#define MEMSTICK_OVERWRITE_FLAG_NORMAL \ + (MEMSTICK_OVERWRITE_PGST1 | \ + MEMSTICK_OVERWRITE_PGST0 | \ + MEMSTICK_OVERWRITE_BKST) + +#define MEMSTICK_OV_PG_NORMAL \ + (MEMSTICK_OVERWRITE_PGST1 | MEMSTICK_OVERWRITE_PGST0) + +#define MEMSTICK_MANAGMENT_FLAG_NORMAL \ + (MEMSTICK_MANAGEMENT_SYSFLG | \ + MEMSTICK_MANAGEMENT_SCMS1 | \ + MEMSTICK_MANAGEMENT_SCMS0) \ + +struct ms_boot_header { + unsigned short block_id; + unsigned short format_reserved; + unsigned char reserved0[184]; + unsigned char data_entry; + unsigned char reserved1[179]; +} __packed; + + +struct ms_system_item { + unsigned int start_addr; + unsigned int data_size; + unsigned char data_type_id; + unsigned char reserved[3]; +} __packed; + +struct ms_system_entry { + struct ms_system_item disabled_block; + struct ms_system_item cis_idi; + unsigned char reserved[24]; +} __packed; + +struct ms_boot_attr_info { + unsigned char memorystick_class; + unsigned char format_unique_value1; + unsigned short block_size; + unsigned short number_of_blocks; + unsigned short number_of_effective_blocks; + unsigned short page_size; + unsigned char extra_data_size; + unsigned char format_unique_value2; + unsigned char assembly_time[8]; + unsigned char format_unique_value3; + unsigned char serial_number[3]; + unsigned char assembly_manufacturer_code; + unsigned char assembly_model_code[3]; + unsigned short memory_manufacturer_code; + unsigned short memory_device_code; + unsigned short implemented_capacity; + unsigned char format_unique_value4[2]; + unsigned char vcc; + unsigned char vpp; + unsigned short controller_number; + unsigned short controller_function; + unsigned char reserved0[9]; + unsigned char transfer_supporting; + unsigned short format_unique_value5; + unsigned char format_type; + unsigned char memorystick_application; + unsigned char device_type; + unsigned char reserved1[22]; + unsigned char format_uniqure_value6[2]; + unsigned char reserved2[15]; +} __packed; + +struct ms_cis_idi { + unsigned short general_config; + unsigned short logical_cylinders; + unsigned short reserved0; + unsigned short logical_heads; + unsigned short track_size; + unsigned short page_size; + unsigned short pages_per_track; + unsigned short msw; + unsigned short lsw; + unsigned short reserved1; + unsigned char serial_number[20]; + unsigned short buffer_type; + unsigned short buffer_size_increments; + unsigned short long_command_ecc; + unsigned char firmware_version[28]; + unsigned char model_name[18]; + unsigned short reserved2[5]; + unsigned short pio_mode_number; + unsigned short dma_mode_number; + unsigned short field_validity; + unsigned short current_logical_cylinders; + unsigned short current_logical_heads; + unsigned short current_pages_per_track; + unsigned int current_page_capacity; + unsigned short mutiple_page_setting; + unsigned int addressable_pages; + unsigned short single_word_dma; + unsigned short multi_word_dma; + unsigned char reserved3[128]; +} __packed; + + +struct ms_boot_page { + struct ms_boot_header header; + struct ms_system_entry entry; + struct ms_boot_attr_info attr; +} __packed; + +struct msb_data { + unsigned int usage_count; + struct memstick_dev *card; + struct gendisk *disk; + struct request_queue *queue; + spinlock_t q_lock; + struct hd_geometry geometry; + struct attribute_group attr_group; + struct request *req; + int caps; + int disk_id; + + /* IO */ + struct workqueue_struct *io_queue; + bool io_queue_stopped; + struct work_struct io_work; + bool card_dead; + + /* Media properties */ + struct ms_boot_page *boot_page; + u16 boot_block_locations[2]; + int boot_block_count; + + bool read_only; + unsigned short page_size; + int block_size; + int pages_in_block; + int zone_count; + int block_count; + int logical_block_count; + + /* FTL tables */ + unsigned long *used_blocks_bitmap; + unsigned long *erased_blocks_bitmap; + u16 *lba_to_pba_table; + int free_block_count[MS_MAX_ZONES]; + bool ftl_initialized; + + /* Cache */ + unsigned char *cache; + unsigned long valid_cache_bitmap; + int cache_block_lba; + bool need_flush_cache; + struct timer_list cache_flush_timer; + + /* Preallocated buffers */ + unsigned char *block_buffer; + struct scatterlist prealloc_sg[MS_BLOCK_MAX_SEGS+1]; + + + /* handler's local data */ + struct ms_register_addr reg_addr; + bool addr_valid; + + u8 command_value; + bool command_need_oob; + struct scatterlist *current_sg; + int current_sg_offset; + + struct ms_register regs; + int current_page; + + int state; + int exit_error; + bool int_polling; + unsigned long int_timeout; + +}; + +enum msb_readpage_states { + MSB_RP_SEND_BLOCK_ADDRESS = 0, + MSB_RP_SEND_READ_COMMAND, + + MSB_RP_SEND_INT_REQ, + MSB_RP_RECEIVE_INT_REQ_RESULT, + + MSB_RP_SEND_READ_STATUS_REG, + MSB_RP_RECIVE_STATUS_REG, + + MSB_RP_SEND_OOB_READ, + MSB_RP_RECEIVE_OOB_READ, + + MSB_RP_SEND_READ_DATA, + MSB_RP_RECEIVE_READ_DATA, +}; + +enum msb_write_block_states { + MSB_WB_SEND_WRITE_PARAMS = 0, + MSB_WB_SEND_WRITE_OOB, + MSB_WB_SEND_WRITE_COMMAND, + + MSB_WB_SEND_INT_REQ, + MSB_WB_RECEIVE_INT_REQ, + + MSB_WB_SEND_WRITE_DATA, + MSB_WB_RECEIVE_WRITE_CONFIRMATION, +}; + +enum msb_send_command_states { + MSB_SC_SEND_WRITE_PARAMS, + MSB_SC_SEND_WRITE_OOB, + MSB_SC_SEND_COMMAND, + + MSB_SC_SEND_INT_REQ, + MSB_SC_RECEIVE_INT_REQ, + +}; + +enum msb_reset_states { + MSB_RS_SEND, + MSB_RS_CONFIRM, +}; + +enum msb_par_switch_states { + MSB_PS_SEND_SWITCH_COMMAND, + MSB_PS_SWICH_HOST, + MSB_PS_CONFIRM, +}; + +struct chs_entry { + unsigned long size; + unsigned char sec; + unsigned short cyl; + unsigned char head; +}; + +static int msb_reset(struct msb_data *msb, bool full); + +static int h_msb_default_bad(struct memstick_dev *card, + struct memstick_request **mrq); + +#define __dbg(level, format, ...) \ + do { \ + if (debug >= level) \ + pr_err(format "\n", ## __VA_ARGS__); \ + } while (0) + + +#define dbg(format, ...) __dbg(1, format, ## __VA_ARGS__) +#define dbg_verbose(format, ...) __dbg(2, format, ## __VA_ARGS__) + +#endif |