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path: root/linux/drivers/media/dvb/b2c2/flexcop-pci.c
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2009-03-03compat: rename struct delayed_work to work_struct on pre-2.6.20Trent Piepho
From: Trent Piepho <xyzzy@speakeasy.org> In v2.6.19-rc6-118-g52bad64 struct work_struct was changed to be only for non-delayed work and struct delayed_work was created for delayed work. Instead of putting ifdefs in the drivers, we use compat.h to rename delayed_work to work_struct on pre-2.6.20 kernels. This will only be a problem if some driver decides to create identifiers named both work_struct and delayed_work in the same scope. There is one driver that has something named work_struct and none with anything named delayed_work, so I don't think will be a problem for as long as this compat code sticks around. Priority: normal Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
2009-02-23[PATCH] software IRQ watchdog for Flexcop B2C2 DVB PCI cardsPatrick Boettcher
From: Patrick Boettcher <pb@linuxtv.org> With (some) Technisat cards you cannot run multiple DVB applications in parallel and switch the channel at the same time. There seems to be a problem on the interfaces or even inside the flexcop-device that can't handle interruption on the streaming interface. This patch adds a watchdog to check whether data is supposed to come in (streaming PIDs are requested) and if no data is seen within 400ms (default) it resets the streaming/pid-filtering hardware. This patch is urgently needed to support the rev 2.8 of the hardware and solves problem occassionally seen on older hardware. Priority: high Signed-off-by: Uwe Bugla <uwe.bugla@gmx.de> Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
2008-01-27[PATCH] static memoryDouglas Schilling Landgraf
From: Douglas Schilling Landgraf <dougsland@gmail.com> - Static memory is always initialized with 0. - Replaced in some cases C99 comments for /* */ Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com>
2007-04-05Fix Kernel Bugzilla #8301: spinlock fix for flexcop-pciMauro Carvalho Chehab
# Now, patch author (just the main one), on a From: field # Please change below if the committer is not the patch author. # From Hendrik Borghorst <hendrik@borghorst.org> # Then a detailed description: If you modprobe the b2c2-flexcop-pci module you got a hardlock of your system. This is due the usage of spin_lock before spin_lock_init is called. # At the end Signed-off-by: fields by patch author and committer, at least. # Signed-Off-By: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-12-16Several stuff backported from 2.6.19-git seriesMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> - INIT_WORK replaced by INIT_DELAYED_WORK - struct work_struct replaced by struct delayed_work - callback parameters also changed - SLAB_KERNEL replaced by GFP_KERNEL - linux/suspend.h replaced by linux/freezer.h - on cpia: INIT_WORK replaced by INIT_WORK_NAR - file->f_dentry->d_inode replaced by file->f_path.dentry->d_inode Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-21IRQ: Maintain regs pointer globally rather than passing to IRQ handlersMauro Carvalho Chehab
Kernel-sync: This patch is required to allow compilation of the tree with kernel 2.6.19. This is the original description of the original patch, signed by David Howells <dhowells@redhat.com>: 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: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-07-19[PATCH] irq-flags: media: Use the new IRQF_ constantsMauro Carvalho Chehab
From: Thomas Gleixner <tglx@linutronix.de> 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> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-13Remove the spagetti code gotos that aren't usefulAndrew de Quincey
From: Trent Piepho <xyzzy@speakeasy.org> Some code had pointless gotos that just didn't make any sense. They didn't make the code smaller, or faster, or easier to understand. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
2006-01-22Fix printk type warningMichael Krufky
From: Randy Dunlap <rdunlap@xenotime.net> Fix printk type warning: drivers/media/dvb/b2c2/flexcop-pci.c:164: warning: format '%08x' expects type 'unsigned int', but argument 4 has type 'dma_addr_t' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Michael Krufky <mkrufky@m1k.net>
2005-06-28Changed the name-field of the pci_driver and usb_driver structs to the name ofPatrick Boettcher
the module after compilation. It seems that this field is used in some places where special characters are not allowed. Maybe related to: http://www.uwsg.iu.edu/hypermail/linux/kernel/0505.1/0983.html Thanks to Alan Halverson for finding this problem. Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
2005-06-22no-data (IRQ-stop) problem (partially) fixed by resetting register 0x300 at ↵Patrick Boettcher
each data_rcv-stop small change in register-struct restructured code in dma-handling (added some comments regarding FCIIb limitations) debug-messages and irq-watchdog (disabled by default, but maybe needed later) added Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
2005-05-05merge whitespace cleanups from kernel treeJohannes Stezenbach
2005-04-15Corrected the THIS_MODULE handling for the flexcop-stuff and dvb-usb which ↵Patrick Boettcher
lead to oopses because of misorganized module dependencies.
2005-04-11- enabled the HW PID by default for the PCI cardsPatrick Boettcher
- correct the TS demux parsing when PID filter is enabled (and thus the timer IRQ) - rewrote the PID-filter and FULLTS control part in flexcop-hw-filter (thanks to Krzysztof Matula for pointing that out)
2005-04-07- fixed interrupt-sharing and added a spinlock to the irq-callback (was ↵Patrick Boettcher
broken due the rewrite and my foolishness), Thanks to Pascal Riekenberg for pointing out)
2005-04-07whitespace cleanup for the flexcop-driver, no functional changePatrick Boettcher
2005-03-11- patch by Amit Gud (unify the spinlock initialization)Patrick Boettcher
- debug parameter can be changed via sysfs by root now
2005-03-09- moved the flexcop-driver-suite to linux/driversPatrick Boettcher
- adapted build-2.6 (removed skystar2 from insmod.sh) - corrected some bugs in Kconfig - tried compilation with linux 2.6.11 (as module and as compiled-in-driver)