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/*
* $Header: /cvsroot/osst/Driver/osst.h,v 1.16 2005/01/01 21:13:35 wriede Exp $
*/
#include <asm/byteorder.h>
#include <linux/completion.h>
#include <linux/mutex.h>
/* FIXME - rename and use the following two types or delete them!
* and the types really should go to st.h anyway...
* INQUIRY packet command - Data Format (From Table 6-8 of QIC-157C)
*/
typedef struct {
unsigned device_type :5; /* Peripheral Device Type */
unsigned reserved0_765 :3; /* Peripheral Qualifier - Reserved */
unsigned reserved1_6t0 :7; /* Reserved */
unsigned rmb :1; /* Removable Medium Bit */
unsigned ansi_version :3; /* ANSI Version */
unsigned ecma_version :3; /* ECMA Version */
unsigned iso_version :2; /* ISO Version */
unsigned response_format :4; /* Response Data Format */
unsigned reserved3_45 :2; /* Reserved */
unsigned reserved3_6 :1; /* TrmIOP - Reserved */
unsigned reserved3_7 :1; /* AENC - Reserved */
u8 additional_length; /* Additional Length (total_length-4) */
u8 rsv5, rsv6, rsv7; /* Reserved */
u8 vendor_id[8]; /* Vendor Identification */
u8 product_id[16]; /* Product Identification */
u8 revision_level[4]; /* Revision Level */
u8 vendor_specific[20]; /* Vendor Specific - Optional */
u8 reserved56t95[40]; /* Reserved - Optional */
/* Additional information may be returned */
} idetape_inquiry_result_t;
/*
* READ POSITION packet command - Data Format (From Table 6-57)
*/
typedef struct {
unsigned reserved0_10 :2; /* Reserved */
unsigned bpu :1; /* Block Position Unknown */
unsigned reserved0_543 :3; /* Reserved */
unsigned eop :1; /* End Of Partition */
unsigned bop :1; /* Beginning Of Partition */
u8 partition; /* Partition Number */
u8 reserved2, reserved3; /* Reserved */
u32 first_block; /* First Block Location */
u32 last_block; /* Last Block Location (Optional) */
u8 reserved12; /* Reserved */
u8 blocks_in_buffer[3]; /* Blocks In Buffer - (Optional) */
u32 bytes_in_buffer; /* Bytes In Buffer (Optional) */
} idetape_read_position_result_t;
/*
* Follows structures which are related to the SELECT SENSE / MODE SENSE
* packet commands.
*/
#define COMPRESSION_PAGE 0x0f
#define COMPRESSION_PAGE_LENGTH 16
#define CAPABILITIES_PAGE 0x2a
#define CAPABILITIES_PAGE_LENGTH 20
#define TAPE_PARAMTR_PAGE 0x2b
#define TAPE_PARAMTR_PAGE_LENGTH 16
#define NUMBER_RETRIES_PAGE 0x2f
#define NUMBER_RETRIES_PAGE_LENGTH 4
#define BLOCK_SIZE_PAGE 0x30
#define BLOCK_SIZE_PAGE_LENGTH 4
#define BUFFER_FILLING_PAGE 0x33
#define BUFFER_FILLING_PAGE_LENGTH 4
#define VENDOR_IDENT_PAGE 0x36
#define VENDOR_IDENT_PAGE_LENGTH 8
#define LOCATE_STATUS_PAGE 0x37
#define LOCATE_STATUS_PAGE_LENGTH 0
#define MODE_HEADER_LENGTH 4
/*
* REQUEST SENSE packet command result - Data Format.
*/
typedef struct {
unsigned error_code :7; /* Current of deferred errors */
unsigned valid :1; /* The information field conforms to QIC-157C */
u8 reserved1 :8; /* Segment Number - Reserved */
unsigned sense_key :4; /* Sense Key */
unsigned reserved2_4 :1; /* Reserved */
unsigned ili :1; /* Incorrect Length Indicator */
unsigned eom :1; /* End Of Medium */
unsigned filemark :1; /* Filemark */
u32 information __attribute__ ((packed));
u8 asl; /* Additional sense length (n-7) */
u32 command_specific; /* Additional command specific information */
u8 asc; /* Additional Sense Code */
u8 ascq; /* Additional Sense Code Qualifier */
u8 replaceable_unit_code; /* Field Replaceable Unit Code */
unsigned sk_specific1 :7; /* Sense Key Specific */
unsigned sksv :1; /* Sense Key Specific information is valid */
u8 sk_specific2; /* Sense Key Specific */
u8 sk_specific3; /* Sense Key Specific */
u8 pad[2]; /* Padding to 20 bytes */
} idetape_request_sense_result_t;
/*
* Mode Parameter Header for the MODE SENSE packet command
*/
typedef struct {
u8 mode_data_length; /* Length of the following data transfer */
u8 medium_type; /* Medium Type */
u8 dsp; /* Device Specific Parameter */
u8 bdl; /* Block Descriptor Length */
} osst_mode_parameter_header_t;
/*
* Mode Parameter Block Descriptor the MODE SENSE packet command
*
* Support for block descriptors is optional.
*/
typedef struct {
u8 density_code; /* Medium density code */
u8 blocks[3]; /* Number of blocks */
u8 reserved4; /* Reserved */
u8 length[3]; /* Block Length */
} osst_parameter_block_descriptor_t;
/*
* The Data Compression Page, as returned by the MODE SENSE packet command.
*/
typedef struct {
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned ps :1;
unsigned reserved0 :1; /* Reserved */
unsigned page_code :6; /* Page Code - Should be 0xf */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned page_code :6; /* Page Code - Should be 0xf */
unsigned reserved0 :1; /* Reserved */
unsigned ps :1;
#else
#error "Please fix <asm/byteorder.h>"
#endif
u8 page_length; /* Page Length - Should be 14 */
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned dce :1; /* Data Compression Enable */
unsigned dcc :1; /* Data Compression Capable */
unsigned reserved2 :6; /* Reserved */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned reserved2 :6; /* Reserved */
unsigned dcc :1; /* Data Compression Capable */
unsigned dce :1; /* Data Compression Enable */
#else
#error "Please fix <asm/byteorder.h>"
#endif
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned dde :1; /* Data Decompression Enable */
unsigned red :2; /* Report Exception on Decompression */
unsigned reserved3 :5; /* Reserved */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned reserved3 :5; /* Reserved */
unsigned red :2; /* Report Exception on Decompression */
unsigned dde :1; /* Data Decompression Enable */
#else
#error "Please fix <asm/byteorder.h>"
#endif
u32 ca; /* Compression Algorithm */
u32 da; /* Decompression Algorithm */
u8 reserved[4]; /* Reserved */
} osst_data_compression_page_t;
/*
* The Medium Partition Page, as returned by the MODE SENSE packet command.
*/
typedef struct {
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned ps :1;
unsigned reserved1_6 :1; /* Reserved */
unsigned page_code :6; /* Page Code - Should be 0x11 */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned page_code :6; /* Page Code - Should be 0x11 */
unsigned reserved1_6 :1; /* Reserved */
unsigned ps :1;
#else
#error "Please fix <asm/byteorder.h>"
#endif
u8 page_length; /* Page Length - Should be 6 */
u8 map; /* Maximum Additional Partitions - Should be 0 */
u8 apd; /* Additional Partitions Defined - Should be 0 */
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned fdp :1; /* Fixed Data Partitions */
unsigned sdp :1; /* Should be 0 */
unsigned idp :1; /* Should be 0 */
unsigned psum :2; /* Should be 0 */
unsigned reserved4_012 :3; /* Reserved */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned reserved4_012 :3; /* Reserved */
unsigned psum :2; /* Should be 0 */
unsigned idp :1; /* Should be 0 */
unsigned sdp :1; /* Should be 0 */
unsigned fdp :1; /* Fixed Data Partitions */
#else
#error "Please fix <asm/byteorder.h>"
#endif
u8 mfr; /* Medium Format Recognition */
u8 reserved[2]; /* Reserved */
} osst_medium_partition_page_t;
/*
* Capabilities and Mechanical Status Page
*/
typedef struct {
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned reserved1_67 :2;
unsigned page_code :6; /* Page code - Should be 0x2a */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned page_code :6; /* Page code - Should be 0x2a */
unsigned reserved1_67 :2;
#else
#error "Please fix <asm/byteorder.h>"
#endif
u8 page_length; /* Page Length - Should be 0x12 */
u8 reserved2,
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