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PCI parallel port devices can IRQ share so we should stop them hogging
the line and making a mess on modern PC systems. We know the sharing
side works as the PCMCIA driver has shared the parallel port IRQ for
some time.
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Currently a parport_driver can't get a handle on the device node for the
underlying parport (PNPACPI, PCI, etc). That prevents correct placement of
sysfs child nodes, which can affect things like power management.
This patch adds a field to "struct parport" pointing to that device node, and
updates non-legacy port drivers to initialize that device pointer. That field
replaces the analagous PCI-only support in parport_pc.
[akpm@linux-foundation.org: fix powerpc build]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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"extern inline" doesn't make much sense.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Add missing "struct" keyword preventing compilation with DEBUG_PARPORT
defined. Also add some "const".
Signed-off-by: Marko Kohtala <marko.kohtala@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Spotted by a Fedora user. Compiling with DEBUG_PARPORT set fails due to
the broken cast.
Just remove it.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The patch below makes the following changes to
drivers/parport/parport_pc.c :
- make some needlessly global functions static
- #if 0 two currently unused functions
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This patch allows the kernel to configure port's mode without help of BIOS.
It is needed on my machine because its firmware simply ignores the
parallel port leaving in unidirectional SPP mode.
Notes on usage:
To configure the port you need to:
- if parport_pc driver is compiled as a module: specify parport_pc
init_mode=[spp|ps2|epp|ecp|ecpepp] in /etc/modules file (for Debian
Linux).
- if the driver is linked statically with the kernel: specify
parport_init_mode=[spp|ps2|epp|ecp|ecpepp] in kernel's arguments.
This patch is intended for use primarily on Pegasos machines but it will
work on any computer with VIA8231 south bridge. In this case it will
override BIOS setting if you tell the driver to configure the port. BIOS
setting will be honored if you omit init_mode parameter. Technical
details:
1. On Pegasos standard port settings (set by OpenFirmware) are: IRQ=7,
DMA=3, base address=0x3BC, mode is unidirectional SPP.
2. The patch changes only port mode, all other settings are preserved.
So if you have a PC with VIA8231 and use driver to configure the port
you'll still be able to change IRQ, DMA and base address in BIOS and
these settings will be kept.
3. One exclusion: if you tell the driver to turn on EPP mode (specify
epp or ecpepp value) and if default base address is 0x3BC (this is the
case on Pegasos) the port will be moved to 0x378. EPP port can't have
0x3BC as the base.
Known problems:
1. ECP+EPP mode is strange, it doesn't work even on several PC's i
tested with Linux. ECP mode is detected and EPP is not. So if you get
the same thing, it's not my fault. I just have no time to deal with
it, current result is enough for me.
2. Not all devices work on Pegasos, i tried my Genuis-HR6 parallel
port scanner and parallel ZIP drive and both of them don't work. ZIP
drive is detected properly but then suddenly gets offline. Scanner
does not answer any command at all. Without the patch the same thing
happens. Obviously Pegasos has some more problems which are not
discovered and not fixed yet.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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parport_pc switched to keeping track of the ports it had
created; in module_exit it uses the private list instead of messing
with parport_enumerate().
Added compile fix for configs that have CONFIG_PARPORT_PC_FIFO turned
off (from -mm).
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From: Jan Hubicka <jh@suse.cz>
GCC never inline extern inline function redefined by new body (because it is
not clear what body one should choose)
parport contains such duplicated functions for apparently no good reasons.
Both copies differ slightly, not sure whether it is intentional or just
garbage.
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- Kai Germaschewski: ISDN updates
- David Miller: sparc and network updates
- Andrea Arcangeli, Maksim Krasnyanskiy: tasklet fixes
- Stelian Pop: Motion Eye camera driver update
- Jens Axboe: DAC960 update
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- Anton Altaparmakov: NTFS error checking
- Johannes Erdfelt: USB updates
- OGAWA Hirofumi: FAT update
- Alan Cox: driver + s390 update merge
- Richard Henderson: fix alpha sigsuspend error return value
- Marcelo Tosatti: per-zone VM shortage
- Daniel Phillips: generic use-once optimization instead of drop-behind
- Bjorn Wesen: Cris architecture update
- Anton Altaparmakov: support for Windows Dynamic Disks
- James Washer: LDT loading SMP bug fix
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- Takanori Kawano: brlock indexing bugfix
- Ingo Molnar, Jeff Garzik: softirq updates and fixes
- Al Viro: rampage of superblock cleanups.
- Jean Tourrilhes: Orinoco driver update v6, IrNET update
- Trond Myklebust: NFS brown-paper-bag thing
- Tim Waugh: parport update
- David Miller: networking and sparc updates
- Jes Sorensen: m68k update.
- Ben Fennema: UDF update
- Geert Uytterhoeven: fbdev logo updates
- Willem Riede: osst driver updates
- Paul Mackerras: PPC update
- Marcelo Tosatti: unlazy swap cache
- Mikulas Patocka: hpfs update
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- Russell King: ARM updates
- Al Viro: more init cleanups
- Cort Dougan: more PPC updates
- David Miller: cleanups, pci mmap updates
- Neil Brown: raid resync by sector
- Alan Cox: more merging with -ac
- Johannes Erdfelt: USB updates
- Kai Germaschewski: ISDN updates
- Tobias Ringstrom: dmfe.c network driver update
- Trond Myklebust: NFS client updates and cleanups
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