Commit graph

567 commits

Author SHA1 Message Date
David S. Miller
c964521c54 [SERIAL] sunsu: Report keyboard and mouse ports in kernel log.
Otherwise there is no explicit mention of these devices.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-14 17:00:23 -07:00
Linus Torvalds
ab6cf0d0cb Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (53 commits)
  [MIPS] sparsemem: fix crash in show_mem
  [MIPS] vr41xx: Update workpad setup function
  [MIPS] vr41xx: Update e55 setup function
  [MIPS] vr41xx: Removed old v2.4 VRC4173 driver
  [MIPS] vr41xx: Move IRQ numbers to asm-mips/vr41xx/irq.h
  [MIPS] MIPSsim: Build fix, rename sim_timer_setup -> plat_timer_setup.
  [MIPS] Remove unused code.
  [MIPS] IP22 Fix brown paper bag in RTC code.
  [MIPS] Atlas, Malta, SEAD: Don't disable interrupts in mips_time_init().
  [MIPS] Replace board_timer_setup function pointer by plat_timer_setup.
  [MIPS] Nuke redeclarations of board_time_init.
  [MIPS] Remove redeclarations of setup_irq().
  [MIPS] Nuke redeclarations of board_timer_setup.
  [MIPS] Print out TLB handler assembly for debugging.
  [MIPS] SMTC: Reformat to Linux style.
  [MIPS] MIPSsim: Delete redeclaration of ll_local_timer_interrupt.
  [MIPS] IP27: Reformatting.
  [MIPS] IP27: Invoke setup_irq for timer interrupt so proc stats will be shown.
  [MIPS] IP27: irq_chip startup method returns unsigned int.
  [MIPS] IP27: struct irq_desc member handler was renamed to chip.
  ...
2006-07-13 16:57:04 -07:00
Linus Torvalds
7b69a4c360 Merge master.kernel.org:/home/rmk/linux-2.6-serial
* master.kernel.org:/home/rmk/linux-2.6-serial:
  [SERIAL] 8250: sysrq deadlock fix
  [SERIAL] 8250: add tsi108 serial support
  [SERIAL] IP22: fix serial console hangs
  [SERIAL] dz: Fix compilation error
2006-07-13 16:38:02 -07:00
Yoichi Yuasa
66151bbd20 [MIPS] vr41xx: Move IRQ numbers to asm-mips/vr41xx/irq.h
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-07-13 21:26:19 +01:00
David S. Miller
91d1ed1a6d [SERIAL] sunsu: Handle keyboard and mouse ports directly.
The sunsu_ports[] array exists merely to be able to easily
use an integer index to get at the proper serial console
port struct.

We size this only for real ports, not for the keyboard and
mouse, and thus keyboard and mouse port registration would
fail.

Fix this by dynamically allocating the port struct for the
keyboard and mouse, instead of using the sunsu_ports[]
array.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-13 01:50:11 -07:00
Andrew Morton
68aa2c0d4a [SERIAL] 8250: sysrq deadlock fix
Fix http://bugzilla.kernel.org/show_bug.cgi?id=6716

Doing a sysrq over a serial line into an SMP machine presently deadlocks.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-09 21:11:10 +01:00
Zang Roy-r61911
3be91ec738 [SERIAL] 8250: add tsi108 serial support
The following patch gets rid of CONFIG_TSI108_BRIDGE.  I add UPIO_TSI to
handle IIR and IER register in serial_in and serial_out.

(1) the reason to rewrite serial_in:

    TSI108 rev Z1 version ERRATA.  Reading the UART's Interrupt
    Identification Register (IIR) clears the Transmit Holding Register
    Empty (THRE) and Transmit buffer Empty (TEMP) interrupts even if they
    are not enabled in the Interrupt Enable Register (IER).  This leads to
    loss of the interrupts.  Interrupts are not cleared when reading UART
    registers as 32-bit word.

(2) the reason to rewrite serial_out:

    Check for UART_IER_UUE bit in the autoconfig routine.  This section
    of autoconfig is excluded for Tsi108/109 because bits 7 and 6 are
    reserved for internal use.  They are R/W bits.  In addition to
    incorrect identification, changing these bits (from 00) will make
    Tsi108/109 UART non-functional.

Signed-off-by: Roy Zang	<tie-fei.zang@freescale.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-09 21:11:09 +01:00
Julien BLACHE
c65b15cfd6 [SERIAL] IP22: fix serial console hangs
The patch below fixes serial console hangs as seen on IP22
machines. Typically, while booting, the machine hangs for ~1 minute
displaying "INIT: ", then the same thing happens again when init
enters in the designated runlevel and finally the getty process on
ttyS0 hangs indefinitely (though strace'ing it helps).

strace (-e raw=ioctl, otherwise the ioctl() translation is utterly
bogus) reveals that getty hangs on ioctl() 0x540f which happens to be
TCSETSW (I saw it hang on another console ioctl() but couldn't
reproduce that one).

A diff between ip22zilog and sunzilog revealed the following
differences:
 1. the channel A flag being set on up.port.flags instead of up.flags
 2. the channel A flag being set on what is marked as being channel B
 3. sunzilog has a call to uart_update_timeout(port, termios->c_cflag, baud);
    at the end of sunzilog_set_termios(), which ip22zilog lacks (on
    purpose ?)

The patch below addresses point 1 and fixes the serial console hangs
just fine. However point 2 should be investigated by someone familiar
with the IP22 Zilog; it's probably OK as is but even if it is, a
comment in ip22zilog.c is badly needed.

Point 3 is left as an exercise for whoever feels like digging into
ip22zilog :)

These are the main obvious differences between ip22zilog and
sunzilog. Newer versions of sunzilog (Linus's git tree as of today)
are more close to ip22zilog as the sbus_{write,read}b have been
changed into simple {write,read}b, which shrinks the diff by a fair
amount. Resyncing both drivers should be doable in a few hours time
now for someone familiar with the IP22 Zilog hardware.

Signed-off-by: Julien BLACHE <jb@jblache.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-09 21:11:09 +01:00
Martin Michlmayr
d608ab9917 [SERIAL] dz: Fix compilation error
Fix the following compilation error in the dz serial driver that got
introduced with the "kernel console should send CRLF not LFCR" change.

  CC      drivers/serial/dz.o
drivers/serial/dz.c: In function 'dz_console_putchar':
drivers/serial/dz.c:679: error: 'uport' undeclared (first use in this function)
drivers/serial/dz.c:679: error: (Each undeclared identifier is reported only once
drivers/serial/dz.c:679: error: for each function it appears in.)

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-09 21:11:09 +01:00
Andrew Victor
20e652761c [ARM] 3710/1: AT91 Serial: Use GPIO API
Patch from Andrew Victor

The AT91RM9200 errata work-around should be using the GPIO API and not
accessing the PIO registers directly.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-05 14:31:13 +01:00
Linus Torvalds
075395d228 Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial:
  [SERIAL] Ensure 8250_pci quirks are not marked __devinit
  [SERIAL] Convert fifosize to an unsigned int
2006-07-03 21:31:05 -07:00
Linus Torvalds
912b2539e1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  powerpc: add defconfig for Freescale MPC8349E-mITX board
  powerpc: Add base support for the Freescale MPC8349E-mITX eval board
  Documentation: correct values in MPC8548E SEC example node
  [POWERPC] Actually copy over i8259.c to arch/ppc/syslib this time
  [POWERPC] Add new interrupt mapping core and change platforms to use it
  [POWERPC] Copy i8259 code back to arch/ppc
  [POWERPC] New device-tree interrupt parsing code
  [POWERPC] Use the genirq framework
  [PATCH] genirq: Allow fasteoi handler to retrigger disabled interrupts
  [POWERPC] Update the SWIM3 (powermac) floppy driver
  [POWERPC] Fix error handling in detecting legacy serial ports
  [POWERPC] Fix booting on Momentum "Apache" board (a Maple derivative)
  [POWERPC] Fix various offb and BootX-related issues
  [POWERPC] Add a default config for 32-bit CHRP machines
  [POWERPC] fix implicit declaration on cell.
  [POWERPC] change get_property to return void *
2006-07-03 15:28:34 -07:00
Ingo Molnar
13e83599d2 [PATCH] lockdep: annotate serial
Teach special (dual-initialized) locking code to the lock validator.  Has no
effect on non-lockdep kernels.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03 15:27:06 -07:00
Bjorn Helgaas
cb6358eb69 [PATCH] SERIAL: allow shared 8250_pnp interrupts
PNP devices can use shared interrupts, so check to see whether we'll need
SA_SHIRQ for request_irq().

The builtin PDH UART on the HP rx8640 is an example of an ACPI/PNP device
that uses a shareable level-triggered, active-low interrupt.  The interrupt
can be shared in very large I/O configurations or by artificially lowering
IA64_DEF_LAST_DEVICE_VECTOR.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Matthieu Castet <castet.matthieu@free.fr>
Cc: Li Shaohua <shaohua.li@intel.com>
Cc: Len Brown <len.brown@intel.com>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03 15:26:58 -07:00
Russell King
61a116ef29 [SERIAL] Ensure 8250_pci quirks are not marked __devinit
The 8250_pci quirks must not be marked __devinit since they may
be used from parport_serial.  We only really need to mark those
which might be used by cards recognised by parport_serial, but
that wouldn't allow static checking.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-03 15:22:35 +01:00
Benjamin Herrenschmidt
0ebfff1491 [POWERPC] Add new interrupt mapping core and change platforms to use it
This adds the new irq remapper core and removes the old one.  Because
there are some fundamental conflicts with the old code, like the value
of NO_IRQ which I'm now setting to 0 (as per discussions with Linus),
etc..., this commit also changes the relevant platform and driver code
over to use the new remapper (so as not to cause difficulties later
in bisecting).

This patch removes the old pre-parsing of the open firmware interrupt
tree along with all the bogus assumptions it made to try to renumber
interrupts according to the platform. This is all to be handled by the
new code now.

For the pSeries XICS interrupt controller, a single remapper host is
created for the whole machine regardless of how many interrupt
presentation and source controllers are found, and it's set to match
any device node that isn't a 8259.  That works fine on pSeries and
avoids having to deal with some of the complexities of split source
controllers vs. presentation controllers in the pSeries device trees.

The powerpc i8259 PIC driver now always requests the legacy interrupt
range. It also has the feature of being able to match any device node
(including NULL) if passed no device node as an input. That will help
porting over platforms with broken device-trees like Pegasos who don't
have a proper interrupt tree.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-03 21:36:01 +10:00
Thomas Gleixner
40663cc7f1 [PATCH] irq-flags: serial: Use the new IRQF_ constants
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 13:58:53 -07:00
Russell King
947deee890 [SERIAL] Convert fifosize to an unsigned int
Some UARTs have more than 255 bytes of FIFO, which can't be
represented by an unsigned char.  Change the kernel's internal
structure to be an unsigned int, but still export an unsigned char
via the TIOCGSERIAL ioctl.  If the TIOCSSERIAL ioctl provides a
fifo size of 0, assume this means "don't change" otherwise we'll
corrupt the larger fifo sizes.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 20:45:51 +01:00
Linus Torvalds
9262e9149f Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Kill sun4v virtual device layer.
  [SERIAL] sunhv: Convert to of_driver layer.
  [SPARC64]: Mask out top 8-bits in physical address when building resources.
  [SERIAL] sunsu: Missing return statement in su_probe().
2006-06-30 15:40:35 -07:00
Linus Torvalds
22a3e233ca Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial:
  Remove obsolete #include <linux/config.h>
  remove obsolete swsusp_encrypt
  arch/arm26/Kconfig typos
  Documentation/IPMI typos
  Kconfig: Typos in net/sched/Kconfig
  v9fs: do not include linux/version.h
  Documentation/DocBook/mtdnand.tmpl: typo fixes
  typo fixes: specfic -> specific
  typo fixes in Documentation/networking/pktgen.txt
  typo fixes: occuring -> occurring
  typo fixes: infomation -> information
  typo fixes: disadvantadge -> disadvantage
  typo fixes: aquire -> acquire
  typo fixes: mecanism -> mechanism
  typo fixes: bandwith -> bandwidth
  fix a typo in the RTC_CLASS help text
  smb is no longer maintained

Manually merged trivial conflict in arch/um/kernel/vmlinux.lds.S
2006-06-30 15:39:30 -07:00
David S. Miller
93872ba21d [SERIAL] sunhv: Convert to of_driver layer.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-30 14:13:38 -07:00
David S. Miller
a1d22d3258 [SERIAL] sunsu: Missing return statement in su_probe().
If we have a keyboard/mouse port, don't drop through to
calling sunsu_autoconfig().

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-30 14:13:34 -07:00
Dominik Brodowski
fec21889cd [PATCH] pcmcia: another ID for serial_cs.c
Add an ID for "GlobeTrotter" cards which need a CIS override

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-06-30 22:09:10 +02:00
Jörn Engel
6ab3d5624e Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 19:25:36 +02:00
Adrian Bunk
80f7228b59 typo fixes: occuring -> occurring
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 18:27:16 +02:00
David S. Miller
89d1d0ab4d [SERIAL] sunsab: Fix section mis-match errors.
sunsab_init_one() needs to be __devinit, not __init

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29 16:37:53 -07:00
David S. Miller
c4d37215a8 [SERIAL] sunsab: Convert to of_driver framework.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29 16:37:50 -07:00
David S. Miller
9efc3715f7 [SERIAL] sun{su,zilog}: Add missing MODULE_*() niceties.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29 16:37:48 -07:00
David S. Miller
1708d242d2 [SERIAL] sunsu: Convert to of_driver framework.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29 16:37:46 -07:00
David S. Miller
4fa97dcf9d [SERIAL] sunzilog: Fix bugs in device deregristration.
1) Need to unregister 2 ports per of_device.
2) Need to of_iounmap() 1 mapping per of_device.
3) Need to free up the IRQ only after all devices
   have been unregistered.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29 16:37:44 -07:00
David S. Miller
3676463178 [SERIAL] sunzilog: Convert to of_driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29 16:37:42 -07:00
Linus Torvalds
602cada851 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6: (22 commits)
  [PATCH] devfs: Remove it from the feature_removal.txt file
  [PATCH] devfs: Last little devfs cleanups throughout the kernel tree.
  [PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV
  [PATCH] devfs: Remove the tty_driver devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the line_driver devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the videodevice devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree
  [PATCH] devfs: Remove devfs_remove() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_bdev() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_symlink() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree
  [PATCH] devfs: Remove devfs_*_tape() functions from the kernel tree
  [PATCH] devfs: Remove devfs support from the sound subsystem
  [PATCH] devfs: Remove devfs support from the ide subsystem.
  [PATCH] devfs: Remove devfs support from the serial subsystem
  [PATCH] devfs: Remove devfs from the init code
  [PATCH] devfs: Remove devfs from the partition code
  ...
2006-06-29 14:19:21 -07:00
Linus Torvalds
1903ac54f8 Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6:
  [PATCH] i386: export memory more than 4G through /proc/iomem
  [PATCH] 64bit Resource: finally enable 64bit resource sizes
  [PATCH] 64bit Resource: convert a few remaining drivers to use resource_size_t where needed
  [PATCH] 64bit resource: change pnp core to use resource_size_t
  [PATCH] 64bit resource: change pci core and arch code to use resource_size_t
  [PATCH] 64bit resource: change resource core to use resource_size_t
  [PATCH] 64bit resource: introduce resource_size_t for the start and end of struct resource
  [PATCH] 64bit resource: fix up printks for resources in misc drivers
  [PATCH] 64bit resource: fix up printks for resources in arch and core code
  [PATCH] 64bit resource: fix up printks for resources in pcmcia drivers
  [PATCH] 64bit resource: fix up printks for resources in video drivers
  [PATCH] 64bit resource: fix up printks for resources in ide drivers
  [PATCH] 64bit resource: fix up printks for resources in mtd drivers
  [PATCH] 64bit resource: fix up printks for resources in pci core and hotplug drivers
  [PATCH] 64bit resource: fix up printks for resources in networks drivers
  [PATCH] 64bit resource: fix up printks for resources in sound drivers
  [PATCH] 64bit resource: C99 changes for struct resource declarations

Fixed up trivial conflict in drivers/ide/pci/cmd64x.c (the printk that
was changed by the 64-bit resources had been deleted in the meantime ;)
2006-06-29 10:49:17 -07:00
Greg Ungerer
727dda800f [PATCH] m68knommu: fix compilation problems with 68328serial driver
Clean out the 68328serial driver:

. remove use of cli/sti
. fix usage of tty_* calls
. remove unused variables

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28 15:03:47 -07:00
Paul Fulghum
817d6d3bce [PATCH] remove TTY_DONT_FLIP
Remove TTY_DONT_FLIP tty flag.  This flag was introduced in 2.1.X kernels
to prevent the N_TTY line discipline functions read_chan() and
n_tty_receive_buf() from running at the same time.  2.2.15 introduced
tty->read_lock to protect access to the N_TTY read buffer, which is the
only state requiring protection between these two functions.

The current TTY_DONT_FLIP implementation is broken for SMP, and is not
universally honored by drivers that send data directly to the line
discipline receive_buf function.

Because TTY_DONT_FLIP is not necessary, is broken in implementation, and is
not universally honored, it is removed.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28 14:59:05 -07:00
Greg Kroah-Hartman
2427ddd8fa [PATCH] 64bit Resource: convert a few remaining drivers to use resource_size_t where needed
Based on a patch series originally from Vivek Goyal <vgoyal@in.ibm.com>

Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-27 09:24:00 -07:00
Greg Kroah-Hartman
331b831983 [PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV
I've always found this flag confusing.  Now that devfs is no longer around, it
has been renamed, and the documentation for when this flag should be used has
been updated.

Also fixes all drivers that use this flag.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:09 -07:00
Greg Kroah-Hartman
aa4148cfc7 [PATCH] devfs: Remove devfs support from the serial subsystem
Also fixes all serial drivers.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:05 -07:00
Ben Collins
b07076e617 [SERIAL] 8250_pnp: add support for other Wacom tablets
http://www.kernel.org/git/?p=linux/kernel/git/bcollins/ubuntu-dapper.git;a=commitdiff;h=6a242b6c279af7805a6cca8f39dbc5bfe1f78cd1

Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-26 15:24:36 +01:00
Greg Ungerer
76aa698f33 [PATCH] m68knommu: 532x UART support
ColdFire serial driver support for the new 532x CPU family UARTs.

Patch submitted by Matt Waddel <Matt.Waddel@freescale.com>.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 17:43:33 -07:00
Linus Torvalds
dfd8317d33 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: (25 commits)
  [ARM] 3648/1: Update struct ucontext layout for coprocessor registers
  [ARM] Add identifying number for non-rt sigframe
  [ARM] Gather common sigframe saving code into setup_sigframe()
  [ARM] Gather common sigframe restoration code into restore_sigframe()
  [ARM] Re-use sigframe within rt_sigframe
  [ARM] Merge sigcontext and sigmask members of sigframe
  [ARM] Replace extramask with a full copy of the sigmask
  [ARM] Remove rt_sigframe puc and pinfo pointers
  [ARM] 3647/1: S3C24XX: add Osiris to the list of simtec pm machines
  [ARM] 3645/1: S3C2412: irq support for external interrupts
  [ARM] 3643/1: S3C2410: Add new usb clocks
  [ARM] 3642/1: S3C24XX: Add machine SMDK2413
  [ARM] 3641/1: S3C2412: Fixup gpio register naming
  [ARM] 3640/1: S3C2412: Use S3C24XX_DCLKCON instead of S3C2410_DCLKCON
  [ARM] 3639/1: S3C2412: serial port support
  [ARM] 3638/1: S3C2412: core clocks
  [ARM] 3637/1: S3C24XX: Add mpll clock, and set as fclk parent
  [ARM] 3636/1: S3C2412: Add selection of CPU_ARM926
  [ARM] 3635/1: S3C24XX: Add S3C2412 core cpu support
  [ARM] 3633/1: S3C24XX: s3c2410 gpio bugfix - wrong pin nos
  ...
2006-06-24 17:48:14 -07:00
Ben Dooks
73e55cb3b3 [ARM] 3639/1: S3C2412: serial port support
Patch from Ben Dooks

Serial port support for the on-board UART blocks
on the Samsung S3C2412 and S3C2413 UARTs.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-24 21:21:32 +01:00
David S. Miller
cecc4e9222 [SPARC64]: Convert central bus layer to in-kernel PROM device tree.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-23 23:15:32 -07:00
David S. Miller
690c8fd31f [SPARC64]: Use in-kernel PROM tree for EBUS and ISA.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-23 23:15:28 -07:00
David S. Miller
6760d28bc6 [SPARC64]: Convert sun4v virtual-device layer to in-kernel PROM device tree.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-23 23:15:13 -07:00
Brent Casavant
f5befceb5c [PATCH] SGI IOC4: Detect IO card variant
There are three different IO cards which an SGI IOC4 controller may find
itself on.  One of these variants does not bring out the IDE and serial
signals, so we need to disable attaching the corresponding IOC4 subdrivers
to such cards.

Cleans up message clutter emitted during device probing.

Signed-off-by: Brent Casavant <bcasavan@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 07:43:07 -07:00
Linus Torvalds
6f3cafce0e Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (21 commits)
  [ARM] 3629/1: S3C24XX: fix missing bracket in regs-dsc.h
  [ARM] 3537/1: Rework DMA-bounce locking for finer granularity
  [ARM] 3601/1: i.MX/MX1 DMA error handling for signaled channels only
  [ARM] 3597/1: ixp4xx/nslu2: Board support for new LED subsystem
  [ARM] 3595/1: ixp4xx/nas100d: Board support for new LED subsystem
  [ARM] 3626/1: ARM EABI: fix syscall restarting
  [ARM] 3628/1: S3C24XX: add get_rate call to struct clk
  [ARM] 3627/1: S3C24XX: split s3c2410 clocks from core clocks
  [ARM] 3613/1: S3C2410: Add sysdev and sysclass
  [ARM] 3624/1: Report true modem control line states
  [ARM] 3620/2: ixp23xx: add uengine loader support
  [ARM] 3618/1: add defconfig for logicpd pxa270 card engine
  [ARM] 3617/1: ep93xx: fix slightly incorrect timer tick rate
  [ARM] 3616/1: fix timer handler wrap logic for a number of platforms
  [ARM] 3615/1: ixp23xx: use platform devices for physmap flash
  [ARM] 3614/1: ep93xx: use platform devices for physmap flash
  [ARM] 3621/1: fix compilation breakage for pnx4008
  [ARM] 3623/1: pnx4008: move GPIO-related defines to gpio.h
  [ARM] 3622/1: pnx4008: remove clk_use/clk_unuse
  [ARM] Enable VFP to be built when non-VFP capable CPUs are selected
  ...
2006-06-22 22:46:28 -07:00
Linus Torvalds
0c97f524fc Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial:
  [ARM] 3600/1: increase amba-pl010 UART_NR to 8
  [ARM] 3571/1: netX: serial driver for Hilscher netX
2006-06-22 22:45:53 -07:00
Uli Luckas
005b5e4d0c [ARM] 3624/1: Report true modem control line states
Patch from Uli Luckas

This patch removes the fake return from serial_pxa_get_mctrl.

Signed-off-by: Uli Luckas <u.luckas@road-gmbh.de>
I just can't remember why this return was there.
Being in the first column clearly indicates it was meant to be removed.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-22 16:49:54 +01:00
Linus Torvalds
050335db2a Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (42 commits)
  [ARM] Fix tosa build error
  [ARM] 3610/1: Make reboot work on Versatile
  [ARM] 3609/1: S3C24XX: defconfig update for s3c2410_defconfig
  [ARM] 3591/1: Anubis: IDE device definitions
  [ARM] Include asm/hardware.h not asm/arch/hardware.h
  [ARM] 3594/1: Poodle: Add touchscreen support + other updates
  [ARM] 3564/1: sharpsl_pm: Abstract some machine specific parameters
  [ARM] 3561/1: Poodle: Correct the MMC/SD power control
  [ARM] 3593/1: Add reboot and shutdown handlers for Zaurus handhelds
  [ARM] 3599/1: AT91RM9200 remove global variables
  [ARM] 3607/1: AT91RM9200 misc fixes
  [ARM] 3605/1: AT91RM9200 Power Management
  [ARM] 3604/1: AT91RM9200 New boards
  [ARM] 3603/1: AT91RM9200 remove old files
  [ARM] 3592/1: AT91RM9200 Serial driver update
  [ARM] 3590/1: AT91RM9200 Platform devices support
  [ARM] 3589/1: AT91RM9200 DK/EK board update
  [ARM] 3588/1: AT91RM9200 CSB337/637 board update
  [ARM] 3587/1: AT91RM9200 hardware headers
  [ARM] 3586/1: AT91RM9200 header update
  ...
2006-06-20 17:52:36 -07:00
Linus Torvalds
be883da759 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Update defconfig.
  [SPARC64]: Don't double-export synchronize_irq.
  [SPARC64]: Move over to GENERIC_HARDIRQS.
  [SPARC64]: Virtualize IRQ numbers.
  [SPARC64]: Kill ino_bucket->pil
  [SPARC]: Kill __irq_itoa().
  [SPARC64]: bp->pil can never be zero
  [SPARC64]: Send all device interrupts via one PIL.
  [SPARC]: Fix iommu_flush_iotlb end address
  [SPARC]: Mark smp init functions as cpuinit
  [SPARC]: Add missing rw can_lock macros
  [SPARC]: Setup cpu_possible_map
  [SPARC]: Add topology_init()
2006-06-20 17:39:28 -07:00
Lennert Buytenhek
4faf4e0e7d [ARM] 3600/1: increase amba-pl010 UART_NR to 8
Patch from Lennert Buytenhek

The cirrus ep93xx has 3 pl010 UARTs, while amba-pl010.c only allows
for 2 by default.  A while ago, I think we agreed on changing the 2
to 8, but I don't see this in 2.6.17 yet.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-20 19:24:07 +01:00
David S. Miller
c6387a48cf [SPARC]: Kill __irq_itoa().
This ugly hack was long overdue to die.

It was a way to print out Sparc interrupts in a more freindly format,
since IRQ numbers were arbitrary opaque 32-bit integers which vectored
into PIL levels.  These 32-bit integers were not necessarily in the
0-->NR_IRQS range, but the PILs they vectored to were.

The idea now is that we will increase NR_IRQS a little bit and use a
virtual<-->real IRQ number mapping scheme similar to PowerPC.

That makes this IRQ printing hack irrelevant, and furthermore only a
handful of drivers actually used __irq_itoa() making it even less
useful.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-20 01:21:29 -07:00
Andrew Victor
afefc4158f [ARM] 3592/1: AT91RM9200 Serial driver update
Patch from Andrew Victor

This patch includes a number of updates to the AT91RM9200 serial driver.

Changes include:
1. Conversion to a platform_driver.  [Ivan Kokshaysky]
2. Replaced all references to AT91RM9200 with AT91.  This driver can now
also be used for the AT91SAM9216.
3. Allow TIOCM_LOOP to configure local loopback mode.
4. Cleaned up the 'read_status_mask' usage and interrupt handler code.
[Chip Coldwell]
5. Suspend/resume support.  [David Brownell]

There are a few 'unused variable' warning when compiling this - I
removed the new DMA support to keep this first patch simpler.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-19 19:53:19 +01:00
Sascha Hauer
f8441e1344 [ARM] 3571/1: netX: serial driver for Hilscher netX
Patch from Sascha Hauer

This patch adds the serial driver for Hilscher's netX network
processors.

Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-19 13:29:07 +01:00
Ben Dooks
96ce2385dd [ARM] 3559/1: S3C2442: core and serial port
Patch from Ben Dooks

Core support for the Samsung S3C2442, and the
serial port driver update to allow the serial
port blocks to be used.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-18 23:06:41 +01:00
Marc Singer
fb62c5a704 [ARM] 3402/1: lpd7a40x: serial driver bug fix
Patch from Marc Singer

The serial driver now sets up the third UART when it is to be used.

Signed-off-by: Marc Singer <elf@buici.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-18 16:16:46 +01:00
Vitaly Bordug
8e30a9a299 [PATCH] ppc32 CPM_UART: various fixes for pq2 uart users
This fixes various odd things that missed update together with cpm_uart
platform_device move. Unified resources names, restructurisation, etc.
Also, addressed issue with recent phys/virt translation rework. Being
cache-coherent, CPM2's do alloc_bootmem() for the console stuff, and it was
used to treat console buffer descriptor mapping 1:1 (as in CPM1 case),
which is definitely wrong.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-05-26 22:38:56 +10:00
Andrew Morton
9a2a9bb201 [SUNSU]: Fix license.
FATAL: modpost: GPL-incompatible module sunsu uses the GPL-only symbol tty_insert_flip_string_flags

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-21 20:08:56 -07:00
Andrew Victor
1281e36027 [ARM] 3523/1: Serial core pm_state
Patch from Andrew Victor

The serial_core already manages the power state of the UARTs, and
therefore it shouldn't suspend a UART which was previously suspended.

This patch modifies serial_core only call the UART-specific
power-management function if the PM state is actually changing.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-16 11:28:49 +01:00
Linus Torvalds
2bf9d6d0f2 Merge master.kernel.org:/home/rmk/linux-2.6-serial
* master.kernel.org:/home/rmk/linux-2.6-serial:
  [SERIAL] 8250: add locking to console write function
  [SERIAL] Remove unconditional enable of TX irq for console
  [SERIAL] 8250: set divisor register correctly for AMD Alchemy SoC uart
  [SERIAL] AMD Alchemy UART: claim memory range
  [SERIAL] Clean up serial locking when obtaining a reference to a port
2006-05-11 15:46:42 -07:00
Linus Torvalds
d98550e334 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [PATCH] powerpc: Use the ibm,pa-features property if available
  powerpc: Fix incorrect might_sleep in __get_user/__put_user on kernel addresses
  [PATCH] ppc32 CPM_UART: fixes and improvements
  [PATCH] ppc32 CPM_UART: Fixed break send on SCC
  [PATCH] powerpc/kprobes: fix singlestep out-of-line
  [PATCH] powerpc/pseries: avoid crash in PCI code if mem system not up
2006-05-04 15:09:52 -07:00
Sascha Hauer
5b80234435 [ARM] 3490/1: i.MX: move uart resources to board files
Patch from Sascha Hauer

This patch moves the i.MX uart resources and the gpio pin setup to the
board files. This allows the boards to decide how many internal uarts
are connected to the outside world and whether they use rts/cts or
not.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-04 14:07:42 +01:00
Vitaly Bordug
6e1976961c [PATCH] ppc32 CPM_UART: fixes and improvements
A number of small issues are fixed, and added the header file, missed from the
original series. With this, driver should be pretty stable as tested among
both platform-device-driven and "old way" boards. Also added missing GPL
statement , and updated year field on existing ones to reflect
code update.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-05-03 23:06:44 +10:00
Vitaly Bordug
61f5657c50 [PATCH] ppc32 CPM_UART: Fixed break send on SCC
SCC uart sends a break sequence each time it is stopped with the
CPM_CR_STOP_TX command. That means that each time an application closes the
serial device, a break is transmitted. To fix this, graceful tx stop is
issued for SCC.

Signed-off-by: David Jander <david.jander@protonic.nl>
Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-05-03 23:06:43 +10:00
Russell King
d8a5a8d7cc [SERIAL] 8250: add locking to console write function
x86 SMP breaks as a result of the previous change, we have no real
option other than to add locking to the 8250 console write function.
If an oops is in progress, try to acquire the lock.  If we fail to
do so, continue anyway.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-02 16:04:29 +01:00
Russell King
a88d75b257 [SERIAL] Remove unconditional enable of TX irq for console
A bug report from Gerd Hoffmann has highlighted that unconditionally
enabling the transmit interrupt at the end of console writes is very
bad.

In Gerd's case, it causes the test for buggy UARTs to give false
positives, incorrectly identifying ports as buggy when they are not.

Moreover, if we unconditionally enable the interrupt, and the port
is sharing it's interrupt with other ports, there is the very real
possibility that we'll cause an interrupt storm.  (Not all ports use
OUT2 as an interrupt mask.)

Hence, revert part of f91a3715db and
all of f5968b37b3 until a better solution
can be found.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-04-30 11:30:15 +01:00
Jon Anders Haugum
b32b19b8ff [SERIAL] 8250: set divisor register correctly for AMD Alchemy SoC uart
Alchemy SoC uart have got a non-standard divisor register that needs some
special handling.

This patch adds divisor read/write functions with test and special
handling for Alchemy internal uart.

Signed-off-by: Jon Anders Haugum <jonah@omegav.ntnu.no>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-04-30 11:20:56 +01:00
Sergei Shtylyov
85835f442e [SERIAL] AMD Alchemy UART: claim memory range
I've noticed that the 8250/Au1x00 driver (drivers/serial/8250_au1x00.c)
doesn't claim UART memory ranges and uses wrong (KSEG1-based) UART
addresses instead of the physical ones.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-04-30 11:15:58 +01:00
Russell King
68ac64cd3f [SERIAL] Clean up serial locking when obtaining a reference to a port
The locking for the uart_port is over complicated, and can be
simplified if we introduce a flag to indicate that a port is "dead"
and will be removed.

This also helps the validator because it removes a case of non-nested
unlock ordering.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
2006-04-30 11:13:50 +01:00
Vitaly Bordug
09b03b6c29 [PATCH] ppc32 CPM_UART: Fixed odd address translations
Current address translation methods can produce wrong results, because
virt_to_bus and vice versa may not produce correct offsets on dma-allocated
memory. The right way is, while tracking both phys and virt address of the
window that has been allocated for boffer descriptors, and use those
numbers to compute the offset and make translation properly.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-04-28 21:11:33 +10:00
Vitaly Bordug
e27987cddd [PATCH] ppc32 CPM_UART: Convert to use platform devices
This is intended to make the driver code more generic and flexible,
to get rid of board-specific layouts within driver, and generic rehaul,
yet keeping compatibility with the existing stuff utilizing it, being
compatible with legacy behavior (but with complaints that legacy mode
used).

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-04-28 21:11:28 +10:00
Hirokazu Takata
dd1c1e3e9e [PATCH] m32r: Remove a warning in m32r_sio.c
/project/m32r-linux/kernel/linux-2.6.17-rc1-mm2/linux-2.6.17-rc1-mm2/drivers/serial/m32r_sio.c: In function 'm32r_sio_console_write':
  /project/m32r-linux/kernel/linux-2.6.17-rc1-mm2/linux-2.6.17-rc1-mm2/drivers/serial/m32r_sio.c:1060: warning: unused variable 'i'

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19 09:13:51 -07:00
Linus Torvalds
63589ed078 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (48 commits)
  Documentation: fix minor kernel-doc warnings
  BUG_ON() Conversion in drivers/net/
  BUG_ON() Conversion in drivers/s390/net/lcs.c
  BUG_ON() Conversion in mm/slab.c
  BUG_ON() Conversion in mm/highmem.c
  BUG_ON() Conversion in kernel/signal.c
  BUG_ON() Conversion in kernel/signal.c
  BUG_ON() Conversion in kernel/ptrace.c
  BUG_ON() Conversion in ipc/shm.c
  BUG_ON() Conversion in fs/freevxfs/
  BUG_ON() Conversion in fs/udf/
  BUG_ON() Conversion in fs/sysv/
  BUG_ON() Conversion in fs/inode.c
  BUG_ON() Conversion in fs/fcntl.c
  BUG_ON() Conversion in fs/dquot.c
  BUG_ON() Conversion in md/raid10.c
  BUG_ON() Conversion in md/raid6main.c
  BUG_ON() Conversion in md/raid5.c
  Fix minor documentation typo
  BFP->BPF in Documentation/networking/tuntap.txt
  ...
2006-04-02 12:58:45 -07:00
Linus Torvalds
86dca4f8e6 Merge master.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (33 commits)
  [PATCH] pcmcia: declare pccard_iodyn_ops (fix m8xx_pcmcia.c compilation error)
  [PATCH] pcmcia: fix pcmcia_device_remove oops
  [PATCH] pcmcia: Add support for Possio GCC AKA PCMCIA Siemens MC45
  [PATCH] pcmcia: pseudo device handling update
  [PATCH] pcmcia: convert DEV_OK to pcmcia_dev_present
  [PATCH] pcmcia: use bitfield instead of p_state and state
  [PATCH] pcmcia: remove unused p_dev->state flags
  [PATCH] pcmcia: make pcmcia_release_{io,irq} static
  [PATCH] pcmcia: add return value to _config() functions
  [PATCH] pcmcia: remove dev_link_t and client_handle_t indirection
  [PATCH] pcmcia: embed dev_link_t into struct pcmcia_device
  [PATCH] pcmcia: rename pcmcia_device.state
  [PATCH] pcmcia: remove unneeded Vcc pseudo setting
  [PATCH] pcmcia: remove export of pcmcia_release_configuration
  [PATCH] pcmcia: default suspend and resume handling
  [PATCH] pcmcia: convert remaining users of pcmcia_release_io and _irq
  [PATCH] pcmcia: add pcmcia_disable_device
  [PATCH] serial_cs: add Merlin U630 IDs
  [PATCH] pcmcia: AT91RM9200 Compact Flash driver
  [PATCH] pcmcia: socket.functions starts with 1
  ...
2006-04-02 12:49:59 -07:00
Adrian Bunk
733f896927 Merge with git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git 2006-04-02 10:37:38 +02:00
Linus Torvalds
683aa4012f Merge master.kernel.org:/home/rmk/linux-2.6-serial
* master.kernel.org:/home/rmk/linux-2.6-serial:
  [SERIAL] Allow 8250 PCI, PNP, GSC and HP300 support to be disabled
2006-03-31 21:36:51 -08:00
Adrian Bunk
2a08b4e904 fix the email address of Wendy Xiong
Replace a bouncing version of the email address of Wendy Xiong with a
working one.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-01 01:04:20 +02:00
Jesper Juhl
a58e00e7da [PATCH] Decrease number of pointer derefs in jsm_tty.c
Decrease the number of pointer derefs in drivers/serial/jsm/jsm_tty.c

Benefits of the patch:
 - Fewer pointer dereferences should make the code slightly faster.
 - Size of generated code is smaller
 - Improved readability

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: "V. ANANDA KRISHNAN" <mansarov@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-31 12:19:01 -08:00
Petr Vandrovec
30bac7aa0e [PATCH] pcmcia: Add support for Possio GCC AKA PCMCIA Siemens MC45
This ugly hack add support for Siemens MC45 PCMCIA GPRS card (which is
identical to Possio GCC, and which is offered by one of our local GPRS
providers).  Card has unfortunate feature that after poweron oxcf950 chip
is fully powered and works, but attached MC45 modem is powered down :-(
There is a special sequence (which takes 1 sec :-( ) to poweron MC45 (and
after MC45 powers on, it takes more than 2 secs until firmware fully
boots...) which needs to be executed after all powerons.

I'm really not familiar with PCMCIA subsystem, so I have no idea whether I
should issue request_region() on rest of oxcf950 address range (0-7 is
UART, 8-F are special configuration registers), or how this should be
better integrated with PM system and so on - I just put it in same place
where another hack already lived...

Card uses 18.432MHz XTAL, so to get it to work you must add lines below to
the /etc/pcmcia/serial.opts.

case "$MANFID-$FUNCID-$PRODID_1-$PRODID_2-$PRODID_3-$PRODID_4" in
'030c,0003-2-GPRS-CARD--')
    SERIAL_OPTS="baud_base 1152000"
    ;;
esac

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:27:07 +02:00
Dominik Brodowski
9940ec3617 [PATCH] pcmcia: convert DEV_OK to pcmcia_dev_present
Instead of the DEV_OK macro, drivers should use pcmcia_dev_present().

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:26:57 +02:00
Dominik Brodowski
e2d4096365 [PATCH] pcmcia: use bitfield instead of p_state and state
Instead of the two status values struct pcmcia_device->p_state and state,
use descriptive bitfields. Most value-checking in drivers was invalid, as
the core now only calls the ->remove() (a.k.a. detach) function in case the
attachement _and_ configuration was successful.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:26:33 +02:00
Dominik Brodowski
15b99ac172 [PATCH] pcmcia: add return value to _config() functions
Most of the driver initialization isn't done in the .probe function, but in
the internal _config() functions. Make them return a value, so that .probe
can properly report whether the probing of the device succeeded or not.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:26:06 +02:00
Dominik Brodowski
fba395eee7 [PATCH] pcmcia: remove dev_link_t and client_handle_t indirection
dev_link_t * and client_handle_t both mean struct pcmcai_device * by now.
Therefore, remove all such indirections.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:21:06 +02:00
Dominik Brodowski
fd238232cd [PATCH] pcmcia: embed dev_link_t into struct pcmcia_device
Embed dev_link_t into struct pcmcia_device(), as they basically address the
same entity. The actual contents of dev_link_t will be cleaned up step by step.
This patch includes a bugfix from and signed-off-by Andrew Morton.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:15:57 +02:00
Dominik Brodowski
70294b4683 [PATCH] pcmcia: remove unneeded Vcc pseudo setting
As we do not allow setting Vcc in the pcmcia core, and Vpp1 and
Vpp2 can only be set to the same value, a lot of code can be
streamlined.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:15:55 +02:00
Dominik Brodowski
8661bb5b4a [PATCH] pcmcia: default suspend and resume handling
In all but one case, the suspend and resume functions of PCMCIA drivers
contain mostly of calls to pcmcia_release_configuration() and
pcmcia_request_configuration(). Therefore, move this code out of the
drivers and into the core.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:15:52 +02:00
Dominik Brodowski
5f2a71fcb7 [PATCH] pcmcia: add pcmcia_disable_device
pcmcia_disable_device(struct pcmcia_device *p_dev) performs the necessary
cleanups upon device or driver removal: it calls the appropriate
pcmcia_release_* functions, and can replace (most) of the current drivers'
_release() functions.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:15:50 +02:00
Domen Puncer
1de9cedfbd [PATCH] serial_cs: add Merlin U630 IDs
Add Merlin U630 IDs.

Signed-off-by: Domen Puncer <domen.puncer@ultra.si>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:13:15 +02:00
Helge Deller
5076c15862 [PARISC] I/O-Space must be ioremap_nocache()'d
Addresses in F-space must be accessed uncached on most parisc machines.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-03-30 17:48:42 +00:00
Russell King
0cff260a42 [SERIAL] Allow 8250 PCI, PNP, GSC and HP300 support to be disabled
Allow the 8250 probe modules to be disabled if we're building for
with EMBEDDED enabled.  This reduces the kernel size by not including
unnecessary probe module support.

Original idea from Matt Mackall for PCI only, expanded to others by
rmk.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-29 22:03:38 +01:00
Linus Torvalds
d4965b3e2f Merge master.kernel.org:/home/rmk/linux-2.6-serial
* master.kernel.org:/home/rmk/linux-2.6-serial:
  [SERIAL] Provide Cirrus EP93xx AMBA PL010 serial support.
  [SERIAL] amba-pl010: allow platforms to specify modem control method
  [SERIAL] Remove obsoleted au1x00_uart driver
  [SERIAL] Small time UART configuration fix for AU1100 processor
2006-03-28 13:52:37 -08:00
Alexey Dobriyan
7f927fcc2f [PATCH] Typo fixes
Fix a lot of typos.  Eyeballed by jmc@ in OpenBSD.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-28 09:16:08 -08:00
Russell King
fbb18a277a [SERIAL] amba-pl010: allow platforms to specify modem control method
The amba-pl010 hardware does not provide RTS and DTR control lines; it
is expected that these will be implemented using GPIO.  Allow platforms
to supply a function to implement manipulation of modem control lines.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-26 23:13:39 +01:00
Ralf Baechle
335bd9dff3 [SERIAL] Remove obsoleted au1x00_uart driver
As announced in feature-removal-schedule.txt.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-26 21:25:57 +01:00
Freddy Spierenburg
8faaea3faa [SERIAL] Small time UART configuration fix for AU1100 processor
The AU1100 processor does not have an internal UART2. Only
UART0, UART1 and UART3 exist. This patch removes the non existing
UART2 and replaces it with a descriptive comment.

Signed-off-by: Freddy Spierenburg <freddy@dusktilldawn.nl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-26 21:22:51 +01:00
Linus Torvalds
36ddf5bbde Merge master.kernel.org:/home/rmk/linux-2.6-serial
* master.kernel.org:/home/rmk/linux-2.6-serial:
  [ARM] 3383/3: ixp2000: ixdp2x01 platform serial conversion
  [SERIAL] amba-pl010: Remove accessor macros
  [SERIAL] remove 8250_acpi (replaced by 8250_pnp and PNPACPI)
  [SERIAL] icom: select FW_LOADER
2006-03-25 20:31:32 -08:00
Russell King
98639a67a9 [SERIAL] amba-pl010: Remove accessor macros
Remove unnecessary accessor macros, using readb/writel directly
instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-25 21:30:11 +00:00
Bjorn Helgaas
111c9bf8c5 [SERIAL] remove 8250_acpi (replaced by 8250_pnp and PNPACPI)
With the combination of PNPACPI and 8250_pnp, we no longer need 8250_acpi.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-25 17:49:47 +00:00
maximilian attems
cb2fc532d0 [SERIAL] icom: select FW_LOADER
The icom driver uses request_firmware()
and thus needs to select FW_LOADER.

Signed-off-by: maximilian attems <maks@sternwelten.at>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-25 17:44:20 +00:00
Linus Torvalds
1e8c573933 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (21 commits)
  BUG_ON() Conversion in drivers/video/
  BUG_ON() Conversion in drivers/parisc/
  BUG_ON() Conversion in drivers/block/
  BUG_ON() Conversion in sound/sparc/cs4231.c
  BUG_ON() Conversion in drivers/s390/block/dasd.c
  BUG_ON() Conversion in lib/swiotlb.c
  BUG_ON() Conversion in kernel/cpu.c
  BUG_ON() Conversion in ipc/msg.c
  BUG_ON() Conversion in block/elevator.c
  BUG_ON() Conversion in fs/coda/
  BUG_ON() Conversion in fs/binfmt_elf_fdpic.c
  BUG_ON() Conversion in input/serio/hil_mlc.c
  BUG_ON() Conversion in md/dm-hw-handler.c
  BUG_ON() Conversion in md/bitmap.c
  The comment describing how MS_ASYNC works in msync.c is confusing
  rcu: undeclared variable used in documentation
  fix typos "wich" -> "which"
  typo patch for fs/ufs/super.c
  Fix simple typos
  tabify drivers/char/Makefile
  ...
2006-03-25 08:41:09 -08:00
Mark A. Greer
e4294b3ecd [PATCH] serial: merge mpsc.h into mpsc.c
Merge mpsc.h into mpsc.c because its the only file that #include's mpsc.h.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:02 -08:00
Mark A. Greer
6261c8e34f [PATCH] serial: mpsc driver has definition of SUPPORT_SYSRQ below include of serial_core.h
The definition of SUPPORT_SYSRQ must come before #include of serial_core.h.
This patch moves the definition of SUPPORT_SYSRQ to be just after the #include
of config.h to make it consistent with 8250.c.

Reported-by: Stephane Chazelas <Stephane@artesyncp.com>
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:02 -08:00
Mark A. Greer
a30ff2e348 [PATCH] serial: mpsc driver passes bad devname to request_irq()
The devname passed to request_irq() contained a '/' which is wrong.  At
a minimum, the '/' prevented the devname from showing up in
/proc/irq/<irq>/<devname>.  This patch replaces the '/' with a '-' to
fixes that problem.

Reported-by: Stephane Chazelas <Stephane@artesyncp.com>
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:23:02 -08:00
Pat Gefre
64b9137943 [PATCH] Altix: rs422 support for ioc4 serial driver
Add rs422 support to the Altix ioc4 serial driver.

Signed-off-by: Patrick Gefre <pfg@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:59 -08:00
Bjorn Helgaas
e51c01b084 [PATCH] hp300: fix driver_register() return handling, remove dio_module_init()
Remove the assumption that driver_register() returns the number of devices
bound to the driver.  In fact, it returns zero for success or a negative
error value.

dio_module_init() used the device count to automatically unregister and
unload drivers that found no devices.  That might have worked at one time,
but has been broken for some time because dio_register_driver() returned
either a negative error or a positive count (never zero).  So it could only
unregister on failure, when it's not needed anyway.

This functionality could be resurrected in individual drivers by counting
devices in their .probe() methods.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Philip Blundell <philb@gnu.org>
Cc: Jochen Friedrich <jochen@scram.de>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:53 -08:00
Uwe Zeisberger
c30fe7f731 fix typos "wich" -> "which"
Signed-off-by: Uwe Zeisberger <zeisberg@informatik.uni-freiburg.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-24 18:23:14 +01:00
Adrian Bunk
41c28ff163 [PATCH] kill _INLINE_
This patch removes all occurances of _INLINE_ in the kernel.

With the exception of tty_flip.h, I've simply removed the inline's since
gcc should know best which functions to be inlined.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-23 07:38:16 -08:00
Linus Torvalds
9d8f057acb Merge master.kernel.org:/home/rmk/linux-2.6-serial
* master.kernel.org:/home/rmk/linux-2.6-serial:
  [SERIAL] Merge avlab serial board entries in parport_serial
  [SERIAL] kernel console should send CRLF not LFCR
2006-03-22 17:33:12 -08:00
Dmitry Torokhov
d39b6cfe66 [PATCH] vr41xx: convert to the new platform device interface
The patch does the following for v441xx seris drivers:

 - stop using platform_device_register_simple() as it is going away
 - mark ->probe() and ->remove() methods as __devinit and __devexit
   respectively
 - initialize "owner" field in driver structure so there is a link
   from /sys/modules to the driver
 - mark *_init() and *_exit() functions as __init and __exit

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-22 07:53:56 -08:00
Atsushi Nemoto
83485f826b [PATCH] serial: serial_txx9 driver update
Update the serial_txx9 driver.

 * More strict check in verify_port.  Cleanup.
 * Do not insert a char caused previous overrun.
 * Fix some spin_locks.
 * Do not call uart_add_one_port for absent ports.

Also, this patch removes a BROKEN tag from Kconfig.  This driver has been
marked as BROKEN by removal of uart_register_port, but it has been solved
already on Sep 2005.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-22 07:53:55 -08:00
David Vrabel
489447380a [PATCH] handle errors returned by platform_get_irq*()
platform_get_irq*() now returns on -ENXIO when the resource cannot be
found.  Ensure all users of platform_get_irq*() handle this error
appropriately.

Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20 13:42:57 -08:00
Russell King
d358788f3f [SERIAL] kernel console should send CRLF not LFCR
Glen Turner reported that writing LFCR rather than the more
traditional CRLF causes issues with some terminals.

Since this aflicts many serial drivers, extract the common code
to a library function (uart_console_write) and arrange for each
driver to supply a "putchar" function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-20 20:00:09 +00:00
David S. Miller
a858f1ca72 [SUNSU]: Fix missing spinlock initialization.
Caught by CONFIG_DEBUG_SPINLOCK.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 01:16:32 -08:00
David S. Miller
f5deb807b8 [SPARC] serial: Make sure sysfs nodes get named correctly.
Because we play this trick where we use ttyS? in increasing minor
numbers for different sunfoo.c drivers, we have to inform the TTY
layer of this.

Do so by setting the tty->name_base appropriately.

Probably there should be a generic way to do this in the serial core,
but for now...

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 01:13:47 -08:00
David S. Miller
843dfb4d99 [SPARC64] sunhv: Fix locking in sunhv_start_tx()
Caller takes the lock already.

Also, fixup the poll loop in sunhv_break_ctl().  Just
like in console write, we udelay(2) and use a loop
limit of 1000000 iterations.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 01:13:38 -08:00
David S. Miller
11fc04e46a [SPARC64]: Put sunhv.o earliest in the list of sparc serial drivers.
So that it will show up as /dev/ttyS0.  Otherwise things like
installers will try to run on whatever serial port gets probed
first.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 01:13:37 -08:00
David S. Miller
135066a211 [SPARC64] sunhv: Support SYSRQ properly.
By calling uart_handle_break().  We'll still do the
"sun_do_break()" handling if the user gives two
breaks in a row.

We should probably do this in the other Sparc serial
drivers too.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 01:13:11 -08:00
David S. Miller
db33f9bc09 [SPARC64]: Fix OOPS on sunhv interrupts.
Until the uart is openned, port->info is NULL.

Also, init the port->irq properly and give a non-zero
port->membase so that the uart device reporting is done.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 01:13:10 -08:00
David S. Miller
9d29a3fafd [SPARC64]: Decode virtual-devices interrupts correctly.
Need to translate through the interrupt-map{,-mask] properties.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 01:13:05 -08:00
David S. Miller
d5a2aa241a [SPARC64] sunhv: Bug fixes.
Add udelay to polling console write loop, and increment
the loop limit.

Name the device "ttyHV" and pass that to add_preferred_console()
when we're using hypervisor console.

Kill sunhv_console_setup(), it's empty.

Handle the case where we don't want to use hypervisor console.
(ie. we have a head attached to a sun4v machine)

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 01:12:46 -08:00
David S. Miller
f4266ab45a [SPARC64] sunhv: Use virtual-devices layer to get interrupt.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 01:12:45 -08:00
David S. Miller
1ddb7c98d4 [SPARC64]: Prevent registering wrong serial console.
If the console is not for a particular Sun serial
controller, set the drv->cons to NULL.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 01:12:42 -08:00
David S. Miller
02fd473bd4 [SPARC64]: Add SUN4V Hypervisor Console driver.
Since it can do things like BREAK and HUP, we implement
this as a serial uart driver.

This still needs interrupt probing code, as I haven't figured
out how interrupts will work or be probed for on SUN4V yet.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 01:12:18 -08:00
Pat Gefre
27d162e26a [PATCH] Altix: small ioc4 oversight
Get rid of the local 'flip' variable and no need to 'trim' the buffer.

Signed-off-by: Patrick Gefre <pfg@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-11 09:19:34 -08:00
Pavel Machek
d5f735e52f [PATCH] serial core: work around sub-driver bugs
We're presently getting oopses because Bluetooth (and possibly other) drivers
are calling core functions after things have been shut down.

So rather than oopsing, let's drop a warning then take avoiding action, so the
machine survives.  Once all the sub-drivers are fixed up we can remove the
take-avoiding-action part.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-08 14:14:00 -08:00
Linus Torvalds
432e7c0dfe Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] mca recovery return value when no bus check
  [IA64] SGI SN drivers: don't report !sn2 hardware as an error
  [IA64] don't report !sn2 or !summit hardware as an error
  [IA64] gensparse_defconfig: turn on PNPACPI
  [IA64] Increase severity of MCA recovery messages
2006-03-08 13:20:46 -08:00
Bjorn Helgaas
f032f90809 [IA64] SGI SN drivers: don't report !sn2 hardware as an error
This stuff is all in the generic ia64 kernel, and the new initcall error
reporting complains about them.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-03-07 15:27:59 -08:00
Martin Michlmayr
c4432c41b0 [SERIAL] ip22zilog: Fix oops on runlevel change with serial console
Incorrect uart_write_wakeup() calls cause reference to a NULL tty
pointer.  This has been fixed in the sunsab and sunzilog serial drivers
in October 2005.  Update the ip22zilog, which is based on sunzilog,
accordingly.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk
2006-03-07 21:04:59 +00:00
David S. Miller
436002e329 [SUNSU]: Fix locking error in sunsu_stop_rx().
The caller takes the UART port lock, so we shouldn't try
to take it again.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-28 11:55:36 -08:00
Russell King
d856c66618 [SERIAL] Add comment about early_serial_setup()
early_serial_setup() must not be called after console initialisation.
Add a comment prior to the function explicitly stating this.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-23 10:22:13 +00:00
Ralf Baechle
dc7bf130b8 [SERIAL] Fix typo in comment
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-15 09:59:47 +00:00
Arthur Othieno
a5f1e4edb3 [SERIAL] Documentation/jsm.txt is a no show.
In kernel bugzilla #5176 (http://bugzilla.kernel.org/show_bug.cgi?id=5176)
Harry R\374ter <h.rueter@gmx.de> points out Documentation/jsm.txt is missing.

No one at Digi seems to care, so just remove the stale reference.

Signed-off-by: Arthur Othieno <apgo@patchbomb.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-15 09:52:46 +00:00
Russell King
fd401aee62 [SERIAL] Remove incorrect code from ioc4 serial driver
Serial drivers in general should not write uart_info->flags - they're
private to serial_core.  Serial drivers have no need to fiddle with
tty->alt_speed, nor manipulate TTY_IO_ERROR in tty->flags.  Fix the
ioc4 serial driver for both these points by simply removing the
offending code.

Acked-by: pfg@sgi.com
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-10 21:50:43 +00:00
Linus Torvalds
17be03f0a1 Merge master.kernel.org:/home/rmk/linux-2.6-serial 2006-02-08 15:21:22 -08:00
Linus Torvalds
cce0cac125 Merge master.kernel.org:/home/rmk/linux-2.6-arm
Manual conflict merge of arch/arm/Kconfig
2006-02-08 15:20:40 -08:00
Yoichi Yuasa
85d1494e5f [SERIAL] 8250_pci: add new PCI serial card support
This patch adds new PCI serial card support.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-08 21:46:24 +00:00
Ralf Baechle
7369a8b39c [SERIAL] ip22zilog: Whitespace cleanup.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-08 21:43:03 +00:00
Vitaly Bordug
76a55431cc [SERIAL] PPC32 CPM_UART: update to utilize the new TTY flip API
This replaces old direct usage of tty->flip stuff with relative flip API
calls.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-08 21:40:13 +00:00
Jordan Crouse
deb37bb7a9 [SERIAL] Fix compile error in 8250_au1x00.c
The DB1550 actually doesn't have a UART2.  Remove it from the list.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-08 21:36:28 +00:00
Kumar Gala
f5968b37b3 [SERIAL] 8250 serial console update uart_8250_port ier
On some embedded PowerPC (MPC834x) systems an extra byte would some
times be required to flush data out of the fifo.
serial8250_console_write() was updating the IER in hardware without
also updating the copy in uart_8250_port. This causes issues functions
like serial8250_start_tx() and __stop_tx() to misbehave.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-08 21:34:35 +00:00
Lucas Correia Villa Real
5cba742935 [ARM] 3283/1: S3C2400 - defines the number of serial ports
Patch from Lucas Correia Villa Real

This patch defines the number of serial ports on the S3C2400.

Signed-off-by: Lucas Correia Villa Real <lucasvr@gobolinux.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-08 21:31:54 +00:00
Al Viro
6881761e63 [PATCH] m32r_sio iomem annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-02-08 01:05:47 -05:00
Greg Ungerer
8e63e66b4c [PATCH] m68knommu: use tty_schedule_flip() in 68328serial.c
Use the new tty_schedule_flip() instead of the original direct
schedule_work of the flip buffer.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-07 16:19:15 -08:00
Greg Ungerer
e39485636b [PATCH] m68knommu: use tty_schedule_flip() in 68360serial.c
Use the new tty_schedule_flip() instead of the original direct
schedule_work of the flip buffer.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-07 16:16:54 -08:00
Greg Ungerer
a9cdffb14a [PATCH] m68knommu: compile fixes for mcfserial.c
Re-organize the default CONSOLE baud rate define setting so that
it is only set once.

Use the new tty_schedule_flip() instead of the original direct
schedule_work of the flip buffer.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-07 16:16:53 -08:00
Russell King
59a675b220 [SERIAL] uart_port flags member should use UPF_*
Convert usage of ASYNC_* to UPF_*.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-05 10:52:29 +00:00
Russell King
9b4a161777 [SERIAL] uart_port iotype member should use UPIO_*
Convert usage of SERIAL_IO_* to UPIO_*.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-05 10:48:10 +00:00
Linus Torvalds
27266a18dc Merge master.kernel.org:/home/rmk/linux-2.6-serial 2006-02-03 15:51:48 -08:00
Russell King
9a8ffccf3d [SERIAL] 8250: limit range of runtime ports
Prevent SERIAL_8250_RUNTIME_UARTS being larger than SERIAL_8250_NR_UARTS.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-03 22:05:42 +00:00
Adrian Bunk
1374ae8b9a [PATCH] drivers/serial/jsm/: cleanups
- jsm_driver.c: remove the now unused jsm_rawreadok module_param
- jsm_tty.c: remove a now unused variable

Is there any problem with removing the now useless jsm_rawreadok
module_param?

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: V. Ananda Krishnan <mansarov@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-03 08:32:08 -08:00
V. Ananda Krishnan
0a577ce34f [PATCH] jsm: update for tty buffering revamp
Signed-off-by: V. Ananda Krishnan <mansarov@us.ibm.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-03 08:32:07 -08:00
Alan Cox
8145916996 [PATCH] Fix some ucLinux breakage from the tty updates
Breakage reported by Adrian Bunk

Untested (no hardware)

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-03 08:32:04 -08:00
Atsushi Nemoto
9c0f4755bd [SERIAL] initialize spinlock for port failed to setup console
It seems serial_core intend to initialize port->lock just once for each
ports.  This is done in uart_set_options() for console, and in
uart_add_one_port() for other ports.  But there is a case the port->lock is
not initialized by serial_core.  If the setup function for the console was
failed, it will not call uart_set_options() but the port is marked as
console (uart_console(port) returns 1).  It can happen if console was PCI
port which can not detected at the time of register_console.

This patch is to initialize port->lock for such console port.  With this
change, most of spin_lock_init() (some of them are labeled "Temporary
fix.") in low-level serial drivers can be omitted.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-02 20:53:39 +00:00
Andrey Panin
3ec9c59449 [SERIAL] SIIG 8-port serial boards support
This patch adds support for SIIG 8-port boards. These boards have 4 ports in
separate bars and another 4 ports in the single bar. Because of this strange
port arrangement these cards need special setup function. Fortunately no other
SIIG cards have more than 4 port, so this setup function could be used for them
too.

Signed-off-by: Andrey Panin <pazke@donpac.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-02 20:15:09 +00:00
Linus Torvalds
59ed2f59e4 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2006-02-01 22:06:15 -08:00
Paul Mundt
b7a76e4b4e [PATCH] sh: sh-sci clock framework updates
A couple of updates for the sh-sci serial driver:

	- Update for clock framework on sh.
	- Fix a compile error introduced by some h8300 changes.
	- Add SH7770/SH7780 subtype support.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-01 08:53:20 -08:00
V. Ananda Krishnan
bb3c190e8d [PATCH] jsm: fix for high baud rates problem
Scott Kilau <Scott_Kilau@digi.com>

Digi serial port console doesn't work when baud rates are set higher than
38400.  So the lookup table and code in jsm_neo.c has been modified and
tested.  Please let me have the feed-back.

Signed-off-by: V.Ananda Krishnan <mansarov@us.ibm.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-01 08:53:14 -08:00
Linus Torvalds
d195ea4b14 Merge master.kernel.org:/home/rmk/linux-2.6-serial 2006-01-31 11:31:54 -08:00
Linus Torvalds
bb4bc81a23 Merge master.kernel.org:/home/rmk/linux-2.6-arm 2006-01-31 11:31:02 -08:00
Lucas Correia Villa Real
0367a8d37a [ARM] 3266/1: S3C2400 - adds macro S3C24XX
Patch from Lucas Correia Villa Real

This patch defines S3C2400 memory map and adds a S3C24XX macro for
common resources between S3C2400, S3C2410 and S3C2440 cpus.

Signed-off-by: Lucas Correia Villa Real <lucasvr@gobolinux.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-26 15:20:50 +00:00
Len Brown
9fdb62af92 [ACPI] merge 3549 4320 4485 4588 4980 5483 5651 acpica asus fops pnpacpi branches into release
Signed-off-by: Len Brown <len.brown@intel.com>
2006-01-24 17:52:48 -05:00
Timothy Charles McGrath
df7559d344 [SERIAL] 8250 Documentation fix
This fixes the documentation error for 'SERIAL_8250' in
drivers/serial/Kconfig

Signed-off-by: Timothy Charles McGrath <tmHikaru@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-23 09:50:09 +00:00
Russell King
0077d45e46 [SERIAL] Make uart_port flags a bitwise type
Same reasoning as commit 747c8a5594
but this time we're making uart_port flags a bitwise type - not
all of these flags correspond with the old ASYNC_ flags, so there
is the possibility for bugs if the wrong ASYNC_* constants are
used.  Always use UPF_* constants for uart_port->flags.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-21 23:03:28 +00:00
Russell King
ba899dbc03 [SERIAL] Make port->ops constant
No one should write to the port->ops structure, so make it constant.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-21 22:45:50 +00:00
Russell King
ca74080385 [SERIAL] Remove UPF_AUTOPROBE and UPF_BOOT_ONLYMCA
The functionality UPF_BOOT_ONLYMCA provided has been replaced by
the 8250_mca module, which only registers MCA ports if MCA is
present.

UPF_AUTOPROBE has no functional effect - in fact, it's never
tested.  Only ibmasm set the flag.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-21 20:06:14 +00:00
Russell King
ce8337cb7d [SERIAL] Don't use ASYNC_ constants with the uart_port structure
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-21 19:28:15 +00:00
Alan Cox
f91a3715db [SERIAL] 8250 serial console fixes
This patch resolves most of the problems with an SMP serial console race
with output via the tty path. At the end of the serial console print we
force enable the tx int in case we clobbered the tx interrupt status
racing between the console and tty output. That way the extra tx
interrupt causes the transmit path to restart not hang.

It also makes the serial console printk use the FIFO. This is neccessary
because some remote management devices fake serial console with FIFO and
are confused into sending one packet per character over ethernet when we
stall rather than filling the FIFO.

In order to preserve existing reliability semantics the function waits
for the serial queue to completely empty before returning.

Both of these problems were identified by a Red Hat partner.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-21 14:59:12 +00:00
Linus Torvalds
497992917e Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2006-01-19 22:16:58 -08:00
Russell King
f43aaba191 [ARM] Convert request_irq+set_irq_type to request_irq with SA_TRIGGER
There's no need to have request_irq followed by set_irq_type.
Just use request_irq with the appropriate SA_TRIGGER flags.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-19 12:26:57 +00:00
Linus Torvalds
2149bcabc5 Merge master.kernel.org:/home/rmk/linux-2.6-serial 2006-01-18 15:19:40 -08:00
Linus Torvalds
2333f21207 Merge master.kernel.org:/home/rmk/linux-2.6-arm 2006-01-18 15:18:53 -08:00
Eddie C. Dost
c126cf80d4 [SPARC64]: Serial Console for E250 Patch
From: Eddie C. Dost <ecd@brainaid.de>

I have the following patch for serial console over the RSC
(remote system controller) on my E250 machine. It basically adds
support for input-device=rsc and output-device=rsc from OBP, and
allows 115200,8,n,1,- serial mode setting.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-18 14:54:31 -08:00
Andrew Victor
1230b4046b [ARM] 3268/1: AT91RM9200 serial update for 2.6.15-git12
Patch from Andrew Victor

This patch fixes two small issues with 2.6.15-git12.

1) Corrected major/minor numbers for ttyAT devices in the KConfig help.
   (Patch from Karl Olsen)

2) tty->flip.count has been removed.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-18 22:38:46 +00:00
Alon Bar-Lev
d9004eb466 [SERIAL] Add 8250 support for Decision Computer International Co. PCCOM2
There is a new device which is look like:

	Serial controller: Decision Computer International Co. PCCOM2 (rev 02) (prog-if 02 [16550])
	0700: 6666:0004 (rev 02) (prog-if 02)
	Flags: medium devsel, IRQ 177
	Memory at fe000000 (32-bit, non-prefetchable) [size=128]
	I/O ports at e880 [size=128]
	I/O ports at e400 [size=256]

It has two 16550A, and is not listed in kernel, although the
manufacturer clams that it is supported...

I've created the following patch, it only add the new PCI id and the
card to the repository, it seems to work.

Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-18 11:47:33 +00:00
Russell King
bc965a7f43 [SERIAL] Fix serial8250 driver initialisation ordering
Commit 7493a314cb changed the ordering
of the registration of the platform device driver vs the 8250 drivers
internal initialisation.  This led to the probe function being called
before the driver had finished its internal initialisation, causing
mayhem.  Revert the ordering change.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-18 09:54:29 +00:00
Jes Sorensen
d171e519da [IA64-SGI] sn_console.c minor cleanup
Fix printk level and remove unnecessary CONFIG_SMP|CONFIG_PREEMPT tests
as this is taken care through the spinlock macros anyway.

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Pat Gefre <pfg@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-01-17 13:54:41 -08:00
Linus Torvalds
650eec5e04 Merge master.kernel.org:/home/rmk/linux-2.6-serial 2006-01-14 19:44:39 -08:00
Linus Torvalds
8d5c315059 Merge master.kernel.org:/home/rmk/linux-2.6-arm 2006-01-14 19:43:21 -08:00
Patrick Gefre
2d0cfb5279 [PATCH] Altix: ioc3 serial support
Add driver support for a 2 port PCI IOC3-based serial card on Altix boxes:

This is a re-submission.  On the original submission I was asked to
organize the code so that the MIPS ioc3 ethernet and serial parts could be
used with this driver.  Stanislaw Skowronek was kind enough to provide the
shim layer for this - thanks Stanislaw.  This patch includes the shim layer
and the Altix PCI ioc3 serial driver.  The MIPS merged ioc3 ethernet and
serial support is forthcoming.

Signed-off-by: Patrick Gefre <pfg@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-14 18:25:20 -08:00
Adrian Bunk
3824ba7df9 [PATCH] remove unused tmp_buf_sem's
tmp_buf_sem sems to be a common name for something completely unused...

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> ("usb portion")
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-14 10:41:42 -08:00
Dmitry Torokhov
7493a314cb [SERIAL] serial8250: convert to the new platform device interface
Do not use platform_device_register_simple() as it is going away.
Also set up driver's owner to create link driver->module in sysfs.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13 22:06:43 +00:00
Adrian Bunk
d600b97cf6 [SERIAL] fix SERIAL_M32R_PLDSIO dependencies
This patch fixes a typo in the dependencies reported by
Jean-Luc Leger <reiga@dspnet.fr.eu.org>.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13 21:57:22 +00:00
Ingo Molnar
e2862f6a83 [SERIAL] convert uart_state.sem to uart_state.mutex
semaphore to mutex conversion.

the conversion was generated via scripts, and the result was validated
automatically via a script as well.

build and boot tested.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13 21:37:07 +00:00
Matt Reimer
3261e362f6 [ARM] 3258/1: IMX serial: fix parity
Patch from Matt Reimer

IMX serial parity generation doesn't work because of a simple logic error. This patch fixes it and now Bluetooth works on R1000.

Signed-off-by: Matt Reimer <mreimer@vpop.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13 20:51:44 +00:00
Linus Torvalds
58cba4650a Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-fixes-2.6 2006-01-12 14:00:47 -08:00
Linus Torvalds
bf785ee0ae Merge master.kernel.org:/home/rmk/linux-2.6-arm 2006-01-12 12:23:49 -08:00
Arjan van de Ven
f392ecfa12 [SERIAL] turn serial semaphores into mutexes
Turn several drivers/serial/ semaphores-used-as-mutex into mutexes

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-12 18:44:32 +00:00
Dominik Brodowski
f542ff6dd1 [PATCH] pcmcia: add new IDs for serial_cs.c
Add IDs for Sierra Aircard 55 CDMA 1xrtt Modem -- a CIS update is required
for this card.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-12 18:48:15 +01:00
Greg Ungerer
082f2c1cc7 [PATCH] m68knommu: set irq priority/level different for each ColdFire serial port
Set the hardware interrupt priority to a different value for each
attached ColdFire serial port.  According to the CPU documentation you
should not use the same combination of level/priority on more than one
device.  People have reported odd serial port behavior with them set the
same.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 09:31:27 -08:00
Linus Torvalds
d936cfc720 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2006-01-10 09:00:55 -08:00
Andrew Victor
1e6c9c2878 [ARM] 3242/2: AT91RM9200 support for 2.6 (Serial)
Patch from Andrew Victor

This patch adds support to the 2.6 kernel series for the Atmel
AT91RM9200 processor.

This patch is the Serial driver.

This version uses the newly re-written GPL'ed hardware headers.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-10 16:59:27 +00:00
Alan Cox
33f0f88f1c [PATCH] TTY layer buffering revamp
The API and code have been through various bits of initial review by
serial driver people but they definitely need to live somewhere for a
while so the unconverted drivers can get knocked into shape, existing
drivers that have been updated can be better tuned and bugs whacked out.

This replaces the tty flip buffers with kmalloc objects in rings. In the
normal situation for an IRQ driven serial port at typical speeds the
behaviour is pretty much the same, two buffers end up allocated and the
kernel cycles between them as before.

When there are delays or at high speed we now behave far better as the
buffer pool can grow a bit rather than lose characters. This also means
that we can operate at higher speeds reliably.

For drivers that receive characters in blocks (DMA based, USB and
especially virtualisation) the layer allows a lot of driver specific
code that works around the tty layer with private secondary queues to be
removed. The IBM folks need this sort of layer, the smart serial port
people do, the virtualisers do (because a virtualised tty typically
operates at infinite speed rather than emulating 9600 baud).

Finally many drivers had invalid and unsafe attempts to avoid buffer
overflows by directly invoking tty methods extracted out of the innards
of work queue structs. These are no longer needed and all go away. That
fixes various random hangs with serial ports on overflow.

The other change in here is to optimise the receive_room path that is
used by some callers. It turns out that only one ldisc uses receive room
except asa constant and it updates it far far less than the value is
read. We thus make it a variable not a function call.

I expect the code to contain bugs due to the size alone but I'll be
watching and squashing them and feeding out new patches as it goes.

Because the buffers now dynamically expand you should only run out of
buffering when the kernel runs out of memory for real.  That means a lot of
the horrible hacks high performance drivers used to do just aren't needed any
more.

Description:

tty_insert_flip_char is an old API and continues to work as before, as does
tty_flip_buffer_push() [this is why many drivers dont need modification].  It
does now also return the number of chars inserted

There are also

tty_buffer_request_room(tty, len)

which asks for a buffer block of the length requested and returns the space
found.  This improves efficiency with hardware that knows how much to
transfer.

and tty_insert_flip_string_flags(tty, str, flags, len)

to insert a string of characters and flags

For a smart interface the usual code is

    len = tty_request_buffer_room(tty, amount_hardware_says);
    tty_insert_flip_string(tty, buffer_from_card, len);

More description!

At the moment tty buffers are attached directly to the tty.  This is causing a
lot of the problems related to tty layer locking, also problems at high speed
and also with bursty data (such as occurs in virtualised environments)

I'm working on ripping out the flip buffers and replacing them with a pool of
dynamically allocated buffers.  This allows both for old style "byte I/O"
devices and also helps virtualisation and smart devices where large blocks of
data suddenely materialise and need storing.

So far so good.  Lots of drivers reference tty->flip.*.  Several of them also
call directly and unsafely into function pointers it provides.  This will all
break.  Most drivers can use tty_insert_flip_char which can be kept as an API
but others need more.

At the moment I've added the following interfaces, if people think more will
be needed now is a good time to say

 int tty_buffer_request_room(tty, size)

Try and ensure at least size bytes are available, returns actual room (may be
zero).  At the moment it just uses the flipbuf space but that will change.
Repeated calls without characters being added are not cumulative.  (ie if you
call it with 1, 1, 1, and then 4 you'll have four characters of space.  The
other functions will also try and grow buffers in future but this will be a
more efficient way when you know block sizes.

 int tty_insert_flip_char(tty, ch, flag)

As before insert a character if there is room.  Now returns 1 for success, 0
for failure.

 int tty_insert_flip_string(tty, str, len)

Insert a block of non error characters.  Returns the number inserted.

 int tty_prepare_flip_string(tty, strptr, len)

Adjust the buffer to allow len characters to be added.  Returns a buffer
pointer in strptr and the length available.  This allows for hardware that
needs to use functions like insl or mencpy_fromio.

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: John Hawkes <hawkes@sgi.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:59 -08:00
Andrew Morton
6ed80991a2 [PATCH] tty-layer-buffering-revamp: jsm is broken
Looks like JSM will be uncompilable after the TTY layer rework is merged into
Linus's post-2.6.15 tree.

It was complex to fix - the maintainers were notified in September.

Cc: Wendy Xiong <wendyx@us.ltcfwd.linux.ibm.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:57 -08:00
Ralf Baechle
29ce2c765c Update Yoichi Yuasa's email address.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-01-10 13:39:07 +00:00
Linus Torvalds
977127174a Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6 2006-01-09 18:41:42 -08:00
Linus Torvalds
3995f4c532 Merge master.kernel.org:/home/rmk/linux-2.6-arm 2006-01-09 15:09:30 -08:00
Linus Torvalds
0581445007 Merge master.kernel.org:/home/rmk/linux-2.6-serial 2006-01-09 15:09:03 -08:00
Richard Knutsson
93b47684f6 [PATCH] drivers/*rest*: Replace pci_module_init() with pci_register_driver()
Replace obsolete pci_module_init() with pci_register_driver().

Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-09 12:13:23 -08:00
Aristeu Sergio Rozanski Filho
03929c76f3 [PATCH] ppc32: cpm_uart: fix xchar sending
while using SCC as uart and as serial console at same time I got this:

[  138.214258] Oops: kernel access of bad area, sig: 11 [#1]
[  138.218832] PREEMPT
[  138.221021] NIP: C0105C48 LR: C0105E60 SP: C03D5D10 REGS: c03d5c60 TRAP: 0300    Not tainted
[  138.229280] MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
[  138.234713] DAR: 00000000, DSISR: C0000000
[  138.238745] TASK = c0349420[693] 'sh' THREAD: c03d4000
[  138.243754] Last syscall: 6
[  138.246402] GPR00: FEFFFFFF C03D5D10 C0349420 C01FB094 00000011 00000000 C1ECFBBC C01F24B0
[  138.254602] GPR08: FF002820 00000000 FF0028C0 00000000 19133615 A0CBCD5E 02000300 00000000
[  138.262804] GPR16: 00000000 01FF9E4C 00000000 7FA9A770 00000000 00000000 1003E2A8 00000000
[  138.271003] GPR24: 100562F4 7F9B6EF4 C0210000 C02A5338 C01FB094 00000000 C01FB094 C1F14574
[  138.279376] NIP [c0105c48] cpm_uart_tx_pump+0x4c/0x22c
[  138.284419] LR [c0105e60] cpm_uart_start_tx+0x38/0xb0
[  138.289361] Call trace:
[  138.291762]  [c0105e60] cpm_uart_start_tx+0x38/0xb0
[  138.296547]  [c010277c] uart_send_xchar+0x88/0x118
[  138.301244]  [c01029a0] uart_unthrottle+0x6c/0x138
[  138.305942]  [c00ece10] check_unthrottle+0x60/0x64
[  138.310641]  [c00ecec4] reset_buffer_flags+0xb0/0x138
[  138.315595]  [c00ecf64] n_tty_flush_buffer+0x18/0x78
[  138.320465]  [c00e81b0] tty_ldisc_flush+0x64/0x7c
[  138.325078]  [c010410c] uart_close+0xf0/0x2c8
[  138.329348]  [c00e9c48] release_dev+0x724/0x8d4
[  138.333790]  [c00e9e18] tty_release+0x20/0x3c
[  138.338061]  [c006e544] __fput+0x178/0x1e0
[  138.342076]  [c006c43c] filp_close+0x54/0xac
[  138.346261]  [c0002d90] ret_from_syscall+0x0/0x44
[  138.352386] note: sh[693] exited with preempt_count 2

a easy way to reproduce it is log into the system using ssh and do:
	cat >/dev/ttyCPM0
then, switch to minicom and write some stuff on it back to ssh, a control C
produce the oops

this happens because uart_close calls uart_shutdown which frees xmit.buf,
currently used by xchar sending in cpm_uart_tx_pump(), which seems wrong.

the attached patch fixes the oops and also fixes xchar sending.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09 15:44:26 +11:00