This patch removes the need for the bit_operations.h include file which
can now be deleted.  It also contains some minor corrections to comments
(typos and alignment of ASCII formulas).  I have also removed some #if
lines that were not necessary.

I have tested the patch using a unit test module that runs in kernel
mode and have verified that the patched code gives identical results to
the previous version using a 8000 sample input sequence.  Let me know if
you want this unit test, it runs automatically when the module is
insmod-ed and outputs a go/no go result:

# insmod oslec.ko
# dmesg
[17191803.480000] oslec_test installed
[17191803.480000] Testing OSLEC with 128 taps (16 ms tail)
[17191803.496000] Oslec Unit Test PASSED! pass: 8000  fail: 0
Signed-off-by: NDavid Rowe <david@rowetel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The proc interface is no longer in the echo code, so remove the TODO
item.

Cc: Steve Underwood <steveu@coppice.org>
Cc: David Rowe <david@rowetel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

It's all just minor comment spacing issues.  This patch fixes
up the remaining ones and now the code is checkpatch.pl clean.

Cc: Steve Underwood <steveu@coppice.org>
Cc: David Rowe <david@rowetel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

next-20090813 randconfig build breaks Discretix SEP driver when
configured with CONFIG_PCI=n.

drivers/staging/sep/sep_driver.c: In function 'sep_probe':
drivers/staging/sep/sep_driver.c:2548: error: implicit declaration of function 'pci_dev_get'

This patch adds the dependency on PCI for the DX SEP driver.
Signed-off-by: NKamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Whee lots of code vanishes. While we are it note various existing stuff
that couldn't work but was ifdeffed in this area.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

While goto can be useful for cleaner cleaning up in C (as Linux sometimes
does and I think Linus borrowed stylistically from Amiga) you can overdo it.
Here is a fine fine example of when it's overkill
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The SEP time setting stuff can now get a hoover
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Split out the debug dumping functionality. Clean up the rest. For the moment
leave the hideous cache flush in there as the code needs fixing to use
the dma_map_sg interfaces not its own crazed table functions
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Simple ioctl taking a single numeric argument so ditch the structs and
weirdness. While we are it lock it properly and fix the error returns.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

#1: sep->cache_addr is assigned to sep->rar_addr and never changed
    sep->rar_addr is never assigned after this point

#2: sep->cache_bus ditto for sep->rar_bus

#3  sep->rar_region_addr is assigned but necer used

#4  sep->io_addr is in fact private to the probe function and
    the same as the reg_addr

#5  The remainig sep->io fields are in fact function locals

#6  sep->message_shared_area is assigned once from sep->shared_area
    sep->shared_area does not then change

#7  sep->shared_addr and sep->shared_area_addr are the same thing, ditto
    for the bus addresses.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Use the mutex as a protection for open close rather than leaving it hanging
invalidly across userspace.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Start by removing unused fields and then work this back to eliminate unused
chunks of the firmware loading ioctl (ie almost all of it)

Also fix the wrong handling of shared allocations and allocate the rar
region properly with dma_alloc_coherent not kmalloc, as it is device shared.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Do these in one batch rather than generate lots of tiny diffs
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The DMA handling in the driver is a bit of a catastrophe. Start with the
simple things - allocate the shared area properly.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

We will need to tackle this in order to begin doing something about the
bus handled and shared memory object mess.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Give it a haircut
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

We can return NULL - much cleaner
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Various function calls can now be cleaned up
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Move from using a sep_dev global. The workqueue still uses it and we use the
pointer in order to know if a device was found.

This requires some restructuring as the pci probe and the init module logic
are all rather messed up and only worked by luck.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Don't read the IRQ from the device, the device has no idea what is going on
in the full bus topology and remapping above PCI. Use the pdev->irq field.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Make them more Linuxlike - also favour _bus over _phys
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Open is still completely bogus in this driver but we'll tackle that later -
for now fix the bogus API
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Cleaning up the code reveals an obvious thinko
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Exterminate! Exterminate! Exterminate!
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Now it is static we can see what code is unused
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Now we have it in one file we can make it all static and see what falls out
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Now we have it trimmed down a bit merge the two pieces so we can clean it up
properly. Code moves but no changes in functions.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

We don't need wrappers for this so clean them up
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This doesn't need to be done at runtime so do it at compile time
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Shuffle the functions into a more normal order. Don't however change any of
them.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

I suspect these can be killed off entirely
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Remove some rather pointless goto calls
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Again all formatting
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Ok time to indent and get the code in vague shape. No other changes in this
patch.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

So how about a little helper
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>