/*
 * idr_changes.h
 * changes and identification macro module for Linux 2.6.x
 * driver for PCI DR11-W boards
 * 
 * Tahoma Technology
 * (formerly Ikon Corporation)
 * 107 2nd Avenue North
 * Seattle, WA, USA 98109
 *
 * 206.728.6465
 * http://www.tahomatech.com
 * tahoma@tahomatech.com
 *
 * This code released under the GPL, and in the public domain
 * References to IKON left in place for compatibility and historical reasons
 *
 * Please send us code modifications and BUG reports
 */

#ifndef	IDR_CHANGES_H
#define	IDR_CHANGES_H

#ifdef	MODULE_DESCRIPTION
MODULE_DESCRIPTION("Tahoma Technology (formerly Ikon Corporation) Pci DR11-W Driver - 2008.08.31 16:28");
#endif

#ifdef	MODULE_AUTHOR
MODULE_AUTHOR("Tahoma Technology (formerly Ikon Corporation) http://www.tahomatech.com");
#endif

#ifdef	MODULE_LICENSE
MODULE_LICENSE("GPL");
#endif

/*
 * TODO:
 *
 * 	go to cdev-style device registration, eventually go
 * 	to hotplug support
 *
 * date: 2008.08.31	files: idr_driver.c, idr_var.h
 *
 *	unregister_chrdev always returned 0 and as of 2.6.23 is
 *	void so don't check return value
 *
 *	as of 2.6.24 new scatterlist access functions to allow
 *	for scatterlist (page) chaining - so add version test
 *	and macro for setting scatterlist entries
 *
 *	we're not implementing chaining - if user really wants
 *	more than a page of scatterlist we will ask kmalloc
 *	for it and not use chaining (let kmalloc fail if not
 *	sufficient contig memory)
 *
 * date: 2006.11.13     files: idr_var.h, idr_driver.c
 *
 *      add butt-ugly version check code to deal with new irq
 *      handler prototype (since kernel devs won't add flag) and
 *      find UTS_RELEASE in utsrelease.h and put it back in debug
 *      print
 *
 * date: 2006.10.30	files: all
 *
 *      fix bonehead #ifndef wrappers on all include files that
 *      only wrapped the #define, not the file !
 *
 *      new flags for request_irq() w/back up defines for older kernels
 *
 *      rename our homemade mutexes to fix collision w/new kernel ones
 *
 *      use compat and unlocked ioctl entries for mixed 32/64 systems
 *
 *      drop unused pt_regs arg in int handler (per 2.6.19-rcx kernels)
 *      w/back up define for older kernels
 *
 *      protect open() from unlikely race
 *
 * date: 2005.10.31+	files: all
 *
 * 	Gather all change and date related comments and macros here.
 * 	Hopefully there will be fewer tracking errors.
 *
 * date: 2005.10.31	files: all
 *
 * 	change pci board id to id list to support both board types
 * 	
 *	changes to keep up w/kernel drift:
 *	pci_dma_sync_single --> pci_dma_sync_single_for_device
 *	pci_find_device --> pci_get_device (and pci_put_device)
 *
 *	general code clean-up and comment compaction
 *	some macros moved from _var.h to _reg.h to try to group
 *	hardware and software macros appropriately
 *
 *	new log print macros
 *	
 *	convert ioctl *arg to u32 so size is the same for
 *	32 and 64 bit operation
 *
 *	use __u32 instead of int in ioctl defines to make sure
 *	size is 32 bits.  #include <linux/types.h> to pick up type
 *	for user apps.
 *	
 * date: 2005.10.05	files: install 
 *
 *	changed MAX_BOARDS default from 1 to 4 now that we check
 *	/proc/interrupts for actual boards atached
 *
 *	put owner, group and permission seting inside node creation
 *	loop so we can't change someone else's nodes by mistake
 *
 * date: 2004.10.08	files: .c
 *
 * 	added owner to file_operations struct
 * 	added pci_disable_device to unload code
 *
 * date: 2005.02.04	files: .c, .h
 *
 * 	major modifications for 2.6 kernel
 *
 * 	kiobuf functionality brought inside driver to allow mapping
 * 	and pinning user buffer pages - since no longer supported
 * 	directly in kernel
 *
 * 	reorganized some code into helper functions
 *
 * date: 2002.08.01	files: all
 *
 * 	added tests to autodetect some options
 *
 * 	corrected use of kiobuf maplist to generate scatterlist to allow for
 *	highmem enabled machines (up to 4G)
 *
 *	added kernel copy buffer for case where machine is and kernel
 *	are highmem, but kernel does not have new scatterlist capability
 *	in this case, we will allocate a copy buffer at init time, and
 *	stuff the kiobuf with its pages
 *
 *	changed max_phys to orders for allocation efficiency in case of
 *	copy buf
 *
 *	include slab.h instead of malloc.h 
 *
 *	moved iopb and adma max size from idr_var.h to idr_reg.h
 *
 *	moved conditional variables and mutex stuct defines to _var.h
 *	from ikon_mutex.h
 *
 *	deleted MODINFOBANNER - replaced with module ID macros
 *
 * date: 2001.06.18	files: .c
 *
 * 	move pci_enable_device() prior to device resource accesses to try to
 *	keep non-x86 architectures happy
 *
 * date: 2000.11.20	files: install
 *
 * 	added -x test to load script line in rc.local
 *
 * date: 2000.08.30	files: .c
 *
 * 	use readl and writel rather than direct dereference (for non x86
 *	architectures) this change in idr_reg.h
 *	SA_SHIRQ rather than SA_INTERRUPT to allow sharing and int code
 *	interruption
 *	use time_before() when delaying to avoid jiffies wrap
 *	add pci_enable_device() 
 *
 * date: 2000.03.24	files: all
 *
 * 	incorporated kiobuf mechanism for dma to/from user buffers
 *	to replace dma copy buffer used in older versions
 *	separated int level read from board and one read from
 *	pci_dev (so we can use the hardware level to restore
 *	board after en eeprom reload
 *	incorporated modified version of Kaz Kylheku's mutex stuff
 *	for SMP
 *	added IOPB macros to gather things in one place in case we
 *	need to do byte swizzling some time
 *	convert all IPLS accesses to PLX accesses - doing accesses via the
 *	idr space may have been allowing pre-fetch from plx registers
 *	disable address space 0 pre-fetch
 *	make int/cstat read in intr volatile
 *	add a dummy read when input fifo or output fifo directly accessed
 *	needed a few 100ns to allow fifo op to complete, especially in box
 *	w/write posting buffers
 *	start DMA in two steps to avoid PLX bug
 *	pause DMA after sleep in strategy - looping a while if not done
 *
 * date: 2000.03.13	files: all
 * 
 *	started working w/2.3.x
 *	new pci_dev definition required changes in the way we get
 *	base addresses
 *	changed file_ops struct initialization to use named fields
 *	changed wait_queue type and added initialization
 *
 * date: 1999.11.11	files: all
 *
 * 	change the way we do config load of PLX chip to avoid
 *	possible future panic if we run into a bridge chip
 *	with a short pci timer
 *
 * date: 1999.10.14	files: all
 *
 * 	re-code for linux 2.2
 *	this version no longer compatible with earlier linux revs
 *
 * date: 1999.02.22	files: all
 *
 * 	start of development - initial target Linux 2.0.35 (R.H. 5.1)
 */

#endif	/* IDR_CHANGES_H */