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250 lines
9.2 KiB
C
250 lines
9.2 KiB
C
/*
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* PCMCIA card structures and defines.
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* These defines relate to the user level
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* structures and card information, not
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* driver/process communication.
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*-------------------------------------------------------------------------
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*
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* Copyright (c) 1995 Andrew McRae. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Card Information Structure tuples definitions
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* The structure of a tuple is basically:
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*
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* Tuple_code
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* Tuple_data_length
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* Tuple_data ...
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*
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* Tuples are contiguous in attribute memory, and
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* are terminated with a 0xFF for the tuple code or
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* the tuple length.
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*/
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#define CIS_NULL 0 /* Empty tuple */
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#define CIS_MEM_COMMON 0x01 /* Device descriptor, common memory */
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#define CIS_CHECKSUM 0x10 /* Checksum */
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#define CIS_LONGLINK_A 0x11 /* Link to Attribute memory */
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#define CIS_LONGLINK_C 0x12 /* Link to Common memory */
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#define CIS_LINKTARGET 0x13 /* Linked tuple must start with this. */
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#define CIS_NOLINK 0x14 /* Assume no common memory link tuple. */
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#define CIS_INFO_V1 0x15 /* Card info data, version 1 */
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#define CIS_ALTSTR 0x16 /* Alternate language string tuple. */
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#define CIS_MEM_ATTR 0x17 /* Device descriptor, Attribute memory */
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#define CIS_JEDEC_C 0x18 /* JEDEC descr for common memory */
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#define CIS_JEDEC_A 0x19 /* JEDEC descr for Attribute memory */
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#define CIS_CONF_MAP 0x1A /* Card Configuration map */
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#define CIS_CONFIG 0x1B /* Card Configuration entry */
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#define CIS_DEVICE_OC 0x1C /* Other conditions info - common memory */
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#define CIS_DEVICE_OA 0x1D /* Other conditions info - attribute memory */
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#define CIS_DEVICEGEO 0x1E /* Geometry info for common memory */
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#define CIS_DEVICEGEO_A 0x1F /* Geometry info for attribute memory */
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#define CIS_MANUF_ID 0x20 /* Card manufacturer's ID */
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#define CIS_FUNC_ID 0x21 /* Function of card */
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#define CIS_FUNC_EXT 0x22 /* Functional extension */
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/*
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* Data recording format tuples.
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*/
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#define CIS_SW_INTERLV 0x23 /* Software interleave */
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#define CIS_VERS_2 0x40 /* Card info data, version 2 */
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#define CIS_FORMAT 0x41 /* Memory card format */
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#define CIS_GEOMETRY 0x42 /* Disk sector layout */
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#define CIS_BYTEORDER 0x43 /* Byte order of memory data */
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#define CIS_DATE 0x44 /* Format data/time */
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#define CIS_BATTERY 0x45 /* Battery replacement date */
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#define CIS_ORG 0x46 /* Organization of data on card */
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#define CIS_END 0xFF /* Termination code */
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/*
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* Internal tuple definitions.
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*
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* Device descriptor for memory (CIS_MEM_ATTR, CIS_MEM_COMMON)
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*
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* Byte 1:
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* 0xF0 - Device type
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* 0x08 - Write protect switch
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* 0x07 - Speed index (7 = extended speed)
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* Byte 2: Extended speed (bit 7 = another follows)
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* Byte 3: (ignored if 0xFF)
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* 0xF8 - Addressable units (0's numbered)
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* 0x07 - Unit size
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* The three byte sequence is repeated until byte 1 == 0xFF
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*/
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/*
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* CIS_INFO_V1 - Version one card information.
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*
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* Byte 1: Major version number (should be 4)
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* Byte 2: Minor version number (should be 1)
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* Byte 3-x: Null terminated Manufacturer name
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* Byte x-x: Null terminated product name
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* Byte x-x: Null terminated additional info 1
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* Byte x-x: Null terminated additional info 2
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* Byte x: final byte must be 0xFF
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*/
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#define CIS_MAJOR_VERSION 4
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#define CIS_MINOR_VERSION 1
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/*
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* CIS_CONF_MAP - Provides an address map for the card
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* configuration register(s), and a max value
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* identifying the last configuration tuple.
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*
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* Byte 1:
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* 0x3C - Register mask size (0's numbered)
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* 0x03 - Register address size (0's numbered)
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* Byte 2:
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* 0x3F - ID of last configuration.
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* Byte 3-n: Card register address (size is determined by
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* the value in byte 1).
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* Byte x-x: Card register masks (size determined by the
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* value in byte 1)
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*/
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/*
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* CIS_CONFIG - Card configuration entry. Multiple tuples may
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* exist of this type, each one describing a different
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* memory/I-O map that can be used to address this card.
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* The first one usually has extra config data about the
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* card features. The final configuration tuple number
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* is stored in the CIS_CONF_MAP tuple so that the complete
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* list can be scanned.
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*
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* Byte 1:
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* 0x3F - Configuration ID number.
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* 0x40 - Indicates this is the default configuration
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* 0x80 - Interface byte exists
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* Byte 2: (exists only if bit 0x80 set in byte 1)
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* 0x0F - Interface type value
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* 0x10 - Battery voltage detect
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* 0x20 - Write protect active
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* 0x40 - RdyBsy active bit
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* 0x80 - Wait signal required
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* Byte 3: (features byte)
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* 0x03 - Power sub-tuple(s) exists
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* 0x04 - Timing sub-tuple exists
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* 0x08 - I/O space sub-tuple exists
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* 0x10 - IRQ sub-tuple exists
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* 0x60 - Memory space sub-tuple(s) exists
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* 0x80 - Miscellaneous sub-tuple exists
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*/
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#define CIS_FEAT_POWER(x) ((x) & 0x3)
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#define CIS_FEAT_TIMING 0x4
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#define CIS_FEAT_I_O 0x8
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#define CIS_FEAT_IRQ 0x10
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#define CIS_FEAT_MEMORY(x) (((x) >> 5) & 0x3)
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#define CIS_FEAT_MISC 0x80
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/*
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* Depending on whether the "features" byte has the corresponding
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* bit set, a number of sub-tuples follow. Some features have
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* more than one sub-tuple, depending on the count within the
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* features byte (e.g power feature bits allows up to 3 sub-tuples).
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*
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* Power structure sub-tuple:
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* Byte 1: parameter exists - Each bit (starting from 0x01) indicates
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* that a parameter block exists - up to 8 parameter blocks
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* are therefore allowed).
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* Byte 2:
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* 0x7F - Parameter data
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* 0x80 - More bytes follow (0 = last byte)
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*
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* Timing sub-tuple
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* Byte 1:
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* 0x03 - Wait scale
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* 0x1C - Ready scale
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* 0xE0 - Reserved scale
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* Byte 2: extended wait scale if wait scale != 3
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* Byte 3: extended ready scale if ready scale != 7
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* Byte 4: extended reserved scale if reserved scale != 7
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*/
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#define CIS_WAIT_SCALE(x) ((x) & 0x3)
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#define CIS_READY_SCALE(x) (((x)>>2) & 0x7)
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#define CIS_RESERVED_SCALE(x) (((x)>>5) & 0x7)
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/*
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* I/O mapping sub-tuple:
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* Byte 1:
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* 0x1F - I/O address lines
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* 0x20 - 8 bit I/O
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* 0x40 - 16 bit I/O
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* 0x80 - I/O range??
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* Byte 2:
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* 0x0F - 0's numbered count of I/O block subtuples following.
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* 0x30 - Size of I/O address value within subtuple. Values
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* can be 1 (8 bits), 2 (16 bits) or 3 (32 bits).
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* 0xC0 - Size of I/O port block size value within subtuple.
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* I/O block sub-tuples, count from previous block:
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* Byte 1-n: I/O start address
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* Byte x-x: Size of I/O port block.
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*/
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#define CIS_IO_ADDR(x) ((x) & 0x1F)
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#define CIS_IO_8BIT 0x20
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#define CIS_IO_16BIT 0x40
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#define CIS_IO_RANGE 0x80
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#define CIS_IO_BLKS(x) ((x) & 0xF)
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#define CIS_IO_ADSZ(x) (((x)>>4) & 3)
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#define CIS_IO_BLKSZ(x) (((x)>>6) & 3)
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/*
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* IRQ sub-tuple.
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* Byte 1:
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* 0x0F - Irq number or mask bits
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* 0x10 - IRQ mask values exist
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* 0x20 - Level triggered interrupts
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* 0x40 - Pulse triggered requests
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* 0x80 - Interrupt sharing.
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* Byte 2-3: Interrupt req mask (if 0x10 of byte 1 set).
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*/
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#define CIS_IRQ_IRQN(x) ((x) & 0xF)
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#define CIS_IRQ_MASK 0x10
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#define CIS_IRQ_LEVEL 0x20
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#define CIS_IRQ_PULSE 0x40
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#define CIS_IRQ_SHARING 0x80
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/*
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* Memory block subtuple. Depending on the features bits, the
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* following subtuples are used:
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* mem features == 1
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* Byte 1-2: upper 16 bits of 24 bit memory length.
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* mem features == 2
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* Byte 1-2: upper 16 bits of 24 bit memory length.
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* Byte 3-4: upper 16 bits of 24 bit memory address.
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* mem_features == 3
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* Byte 1:
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* 0x07 - 0's numbered count of memory sub-tuples
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* 0x18 - Memory length size (1's numbered)
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* 0x60 - Memory address size (1's numbered)
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* 0x80 - Host address value exists
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* Memory sub-tuples follow:
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* Byte 1-n: Memory length value (<< 8)
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* Byte n-n: Memory card address value (<< 8)
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* Byte n-n: Memory host address value (<< 8)
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*/
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#define CIS_FEAT_MEM_NONE 0 /* No memory config */
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#define CIS_FEAT_MEM_LEN 1 /* Just length */
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#define CIS_FEAT_MEM_ADDR 2 /* Card address & length */
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#define CIS_FEAT_MEM_WIN 3 /* Multiple windows */
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#define CIS_MEM_WINS(x) (((x) & 0x7)+1)
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#define CIS_MEM_LENSZ(x) (((x) >> 3) & 0x3)
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#define CIS_MEM_ADDRSZ(x) (((x) >> 5) & 0x3)
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#define CIS_MEM_HOST 0x80
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