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2009-04-28 John Dallaway <john@dallaway.org.uk>
cdl/io_disk.cdl: Use CYGPKG_IO as the parent.
2006-09-21 Jonathan Larmour <jifl@eCosCentric.com>
* include/disk.h (DISK_CHANNEL): No need for extra _part_dev
slot intended for entire disk's own devtab.
* src/disk.c (disk_lookup): Just access pdevs_dev directly
with no adjusted offset.
(disk_init): No longer set entry 0 from device devtab.
It's unnecessary.
2006-09-20 Jonathan Larmour <jifl@eCosCentric.com>
* include/disk.h: Merge eCosCentric CVS with public eCos CVS.
This merges (and therefore changes) the API. ChangeLog
entries have been incorporated in the correct places below.
* include/diskio.h: Also merged.
* cdl/io_disk.cdl: Also merged.
* src/disk.c: Also merged.
2006-08-18 Andy Jackson <andy@xylanta.com>
* cdl/io_disk.cdl: Made debugging CDL controlled.
* src/disk.c: Added support to allow non-CHS disk devices to
use LBA information in MBR.
2006-02-03 Nick Garnett <nickg@ecoscentric.com>
* src/disk.c (read_partition): Switched to favour LBA partition
information in partition tables. This also means we don't now rely
on the driver reporting a correct CHS size for the disk.
(disk_bread, disk_bwrite): API changed to take length in sectors
rather than bytes. Also call hardware driver to transfer in
(up to) max_transfer sized chunks, rather than a sector at a
time. Call in to driver now made with DSR lock claimed, to avoid a
race condition between the DSR and the calling thread.
(disk_get_config): Added phys_block_size to channel info.
* include/diskio.h (struct cyg_disk_identify_t): Added
phys_block_size and max_transfer fields. These must be filled in
by the driver.
2005-12-12 Jonathan Larmour <jifl@eCosCentric.com>
* include/disk.h (DISK_CHANNEL_INIT): New macro. Allows a
DISK_CHANNEL to be defined dynamically.
2005-12-02 Andrew Lunn <andrew.lunn@ascom.ch>
* src/disk.c: Add comments that bread/bwrite take the position and
len in terms of blocks, not bytes.
2005-10-11 Nick Garnett <nickg@ecoscentric.com>
* src/disk.c (disk_bread, disk_bwrite): Made calls to
cyg_thread_yield() dependent on presence ok kernel.
2005-06-01 Jonathan Larmour <jifl@eCosCentric.com>
* src/disk.c (disk_bwrite): Uncomment the cyg_thread_yield() at
the end to prevent thread starvation between threads at the same
priority.
(disk_bread): Ditto.
2004-07-21 Nick Garnett <nickg@ecoscentric.com>
* src/disk.c (read_partition): Changed to account for very large
disks which report bogus CHS geometry. We can only use the LBA
partition parameters in such disks.
(disk_set_config): Added some extra debug output.
2004-07-01 Savin Zlobec <savin@elatec.si>
* src/disk.c:
* include/disk.h:
* include/diskio.h:
Use predefined arrays for partition devices and info
radher than malloc. Extended DISK_CHANNEL macro to
support defining maximum number of partitions.
2004-04-15 Nick Garnett <nickg@ecoscentric.com>
* src/disk.c:
Various changes to support disconnect/reconnect of changeable
media.
* include/diskio.h: Added mount counter to disk_info structure.
* include/disk.h: Changed disk_disconnected() function to take a
pointer to a struct disk_channel rather than a struct
cyg_devtab_entry. Added mount count to disk_channel structure.
Moved include of diskio.h to end to fix declaration problems.
2004-02-04 Nick Garnett <nickg@ecoscentric.com>
* src/disk.c: Fixed bug in write routine where controller result
field was not being initialized. Added signals on controller queue
condition variable after setting controller busy flag to false.
* include/disk.h: Made controller result and busy fields
volatile. Just in case.
2004-01-23 Nick Garnett <nickg@ecoscentric.com>
* include/disk.h:
* src/disk.c:
Many changes. Added additional disk_controller data structure to
better reflect hardware structure. Added support for serialization
of multithreaded accesses to a single controller. Added support
for asynchronous, interrupt driven, IO operations. Various
tidies.
2004-01-15 Nick Garnett <nickg@ecoscentric.com>
* src/disk.c:
* include/disk.h: Removed block_pos arguments from
hardware driver read and write calls: it is not necessary.
* src/disk.c (read_mbr): Modified to read a complete sector from
the disk rather than pieces. Drivers should only ever see
reads/writes in multiples of 512 bytes.
2003-10-16 Savin Zlobec <savin@elatec.si>
* src/disk.c:
Check return code from MBR scan and set
connected flag only if there was no error.
2003-09-01 Savin Zlobec <savin@elatec.si>
* cdl/io_disk.cdl:
* inc/disk.h:
* inc/diskio.h:
* src/disk.c:
A block device IO implementation
//===========================================================================
// ####GPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 2003, 2004, 2005, 2006, 2009 Free Software Foundation, Inc.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 or (at your option) any
// later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the
// Free Software Foundation, Inc., 51 Franklin Street,
// Fifth Floor, Boston, MA 02110-1301, USA.
// -------------------------------------------
// ####GPLCOPYRIGHTEND####
//===========================================================================
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