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  1. 11 1月, 2007 2 次提交
  3. 10 1月, 2007 2 次提交
    • W
      [WATCHDOG] pcwd_usb.c - get heartbeat from dip switches · f3dc0733
      由 Wim Van Sebroeck 提交于 
      The PCWD cards normally use the heartbeat that is set via
the dip-switches of the card. There are only 3 switches,
thus 8 combinations that each have a certain heartbeat.
The card can however be programmed with a heartbeat from
1 till 65535 seconds. This is what our driver does: it
programs the heartbeat on the card.

There are however a lot of people that don't know that
we set the heartbeat of the watchdog card to the value
provided by the heartbeat module parameter. Instead they
think that the heartbeat value is the same as set by the
dip-switches.

This patch changes the driver so that at startup you can
take the heartbeat from the dip-switches. You do this
by setting the heartbeat module parameter to 0. This
patch also makes this the default behaviour.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
      f3dc0733
    • W
      [WATCHDOG] pcwd.c - e-mail adres update · f9146f26
      由 Wim Van Sebroeck 提交于 
      update Simon Machell's e-mail adres
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
      f9146f26
  5. 09 1月, 2007 2 次提交
    • W
      [WATCHDOG] pcwd_usb.c - get heartbeat from dip switches · 2ef473de
      由 Wim Van Sebroeck 提交于 
      The PCWD cards normally use the heartbeat that is set via
the dip-switches of the card. There are only 3 switches,
thus 8 combinations that each have a certain heartbeat.
The card can however be programmed with a heartbeat from
1 till 65535 seconds. This is what our driver does: it
programs the heartbeat on the card.

There are however a lot of people that don't know that
we set the heartbeat of the watchdog card to the value
provided by the heartbeat module parameter. Instead they
think that the heartbeat value is the same as set by the
dip-switches.

This patch changes the driver so that at startup you can
take the heartbeat from the dip-switches. You do this
by setting the heartbeat module parameter to 0. This
patch also makes this the default behaviour.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
      2ef473de
    • W
      [WATCHDOG] pcwd_usb.c - document includes · d26d9096
      由 Wim Van Sebroeck 提交于 
      document and review the include files.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
      d26d9096
  7. 08 1月, 2007 2 次提交
    • W
      [WATCHDOG] pcwd_pci.c - spinlock fixes · 045798b5
      由 Wim Van Sebroeck 提交于 
      the keepalive and get_temperature functions should
use spinlocks also.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
      045798b5
    • W
      [WATCHDOG] pcwd_pci.c - get heartbeat from dip switches · 39e3a055
      由 Wim Van Sebroeck 提交于 
      The PCWD cards normally use the heartbeat that is set via
the dip-switches of the card. There are only 3 switches,
thus 8 combinations that each have a certain heartbeat.
The card can however be programmed with a heartbeat from
1 till 65535 seconds. This is what our driver does: it
programs the heartbeat on the card.

There are however a lot of people that don't know that
we set the heartbeat of the watchdog card to the value
provided by the heartbeat module parameter. Instead they
think that the heartbeat value is the same as set by the
dip-switches.

This patch changes the driver so that at startup you can
take the heartbeat from the dip-switches. You do this
by setting the heartbeat module parameter to 0. This
patch also makes this the default behaviour.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
      39e3a055
  9. 20 12月, 2006 1 次提交
  11. 19 12月, 2006 1 次提交
  13. 13 12月, 2006 1 次提交
  15. 08 12月, 2006 4 次提交
  17. 02 12月, 2006 1 次提交
  19. 01 12月, 2006 1 次提交
  21. 18 11月, 2006 5 次提交
  23. 13 11月, 2006 1 次提交
  25. 30 10月, 2006 1 次提交
  27. 29 10月, 2006 2 次提交
  29. 24 10月, 2006 1 次提交
  31. 23 10月, 2006 1 次提交
  33. 18 10月, 2006 1 次提交
  35. 16 10月, 2006 1 次提交
  37. 15 10月, 2006 1 次提交
  39. 14 10月, 2006 1 次提交
  41. 12 10月, 2006 1 次提交
    • J
      [WATCHDOG] watchdog/iTCO_wdt: fix bug related to gcc uninit warning · 80060362
      由 Jeff Garzik 提交于 
      gcc emits the following warning:

drivers/char/watchdog/iTCO_wdt.c: In function ‘iTCO_wdt_ioctl’:
drivers/char/watchdog/iTCO_wdt.c:429: warning: ‘time_left’ may be used uninitialized in this function

This indicates a condition near enough to a bug, to want to fix.
iTCO_wdt_get_timeleft() stores a value in 'time_left' iff
iTCO_version==(1 or 2).  This driver only supports versions
1 or 2, so this is ok.  However, since (a) the return value of
iTCO_wdt_get_timeleft() is handled anyway, (b) it fixes the warning,
and (c) it future-proofs the driver, we go ahead and add the obvious
return value.
Signed-off-by: NJeff Garzik <jeff@garzik.org>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
      80060362
  43. 09 10月, 2006 2 次提交
  45. 08 10月, 2006 1 次提交
  47. 05 10月, 2006 4 次提交
    • D
      IRQ: Maintain regs pointer globally rather than passing to IRQ handlers · 7d12e780
      由 David Howells 提交于 
      Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.
Signed-Off-By: NDavid Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
      7d12e780
    • S
      [WATCHDOG] w83697hf/hg WDT driver - Kconfig patch · ff02cfc7
      由 Samuel Tardieu 提交于 
      Update Kconfig for the w83697hf/hg watchdog driver.
Signed-off-by: NSamuel Tardieu <sam@rfc1149.net>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
      ff02cfc7
    • W
      [WATCHDOG] w83697hf/hg WDT driver - autodetect patch · e223f01a
      由 Wim Van Sebroeck 提交于 
      Change the autodetect code so that it is more generic.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
      e223f01a
    • S
      [WATCHDOG] w83697hf/hg WDT driver - patch 16 · 3fdee8db
      由 Samuel Tardieu 提交于 
      This is patch 16 in the series of patches that converts
Marcus Junker's w83697hf watchdog driver to Samuel Tardieau's
w83697hf/hg watchdog driver.

This patch contains following changes:
 - Add copyright notice for Samuel Tardieu also.

This is the last patch in this series. 

The original description for Samuel's driver was:
driver for the Winbond W83697HF/W83697HG watchdog timer

The Winbond SuperIO W83697HF/HG includes a watchdog that can count from
1 to 255 seconds (or minutes). This drivers allows the seconds mode to
be used. It exposes a standard /dev/watchdog interface. This chip is
currently being used on some motherboards designed by VIA.

By default, the module looks for a chip at I/O port 0x2e. The chip can
be configured to be at 0x4e on some motherboards, the address can be
chosen using the wdt_io module parameter. Using 0 will try to autodetect
the address.
Signed-off-by: NSamuel Tardieu <sam@rfc1149.net>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
      3fdee8db