- 25 4月, 2008 40 次提交
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由 Alan Stern 提交于
This patch (as1046) makes USB-PERSIST work more in accordance with the documentation. Currently it takes effect only in cases where the root hub has lost power or been reset, but it is supposed to operate whenever a power session was dropped during a system sleep. A new hub_restart() routine carries out the duties required during a reset or a reset-resume. It checks to see whether occupied ports are still enabled, and if they aren't then it clears the enable-change and connect-change features (to prevent interference by khubd) and sets the child device's reset_resume flag. It also checks ports that are supposed to be unoccupied to verify that the firmware hasn't left the port in an enabled state. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as1045) reorganizes some code in the hub driver. hub_port_status() is moved earlier in the file, and a new hub_stop() routine is created to do the work currently in hub_preset() (i.e., disconnect all child devices and quiesce the hub). There are no functional changes. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Stern 提交于
This patch (as1044) causes EHCI port handover for non-high-speed devices to occur during every root-hub resume, not just in cases where the controller lost power or was reset. This is necessary because: When some machines go into suspend, they remove power from on-board USB devices while retaining suspend current for USB controllers. The user might well unplug a USB device while the system is suspended and then plug it back in before resuming. A corresponding change is made to the core resume routine; now high-speed root hubs will always be resumed when the system wakes up, even if they were suspended before the system went to sleep. If this weren't done then EHCI port handover wouldn't work, since it is called when the EHCI root hub is resumed. Finally, a comment is added to the hub driver explaining the khubd has to be freezable; if it weren't frozen then it could interfere with port handover. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Stefan Seyfried 提交于
Add the HP hs2300 Broadband Wireless Module (relabeled MC8775) USB IDs Signed-off-by: NStefan Seyfried <seife@suse.de> Cc: stable <stable@kernel.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Ming Lei 提交于
Fix the leak of the snap structure allocated in mon_stat_open(). Signed-off-by: NMing Lei <tom.leiming@gmail.com> Acked-by: NPete Zaitcev <zaitcev@redhat.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Craig Shelley 提交于
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Ingo Molnar 提交于
Stephen Rothwell noticed that: Commit 2be62149 ("x86: dma-ops on highmem fix") in Linus' tree introduced a new warning (noticed in the x86_64 allmodconfig build of linux-next): drivers/pci/intel-iommu.c:2240: warning: initialization from incompatible pointer type Which points at an instance of map_single that needs updating. Fix it to the new prototype. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Mauro Carvalho Chehab 提交于
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mauro Carvalho Chehab 提交于
There are different tables for MTS firmwares. This should be taken into account while selecting the proper firmware. While at tuner-xc2028.h, improve some comments. Thanks to Edward J. Sheldrake <ejs1920@yahoo.co.uk> for helping to diagnose such troubles with PAL/I standard. Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Alan Cox 提交于
Frank Bennett reported that ivtv was causing skype to crash. With help from one of their developers he showed it was a kernel problem. VIDIOCGCAP copies a name into a fixed length buffer - ivtv uses names that are too long and does not truncate them so corrupts a few bytes of the app data area. Possibly the names also want trimming but for now this should fix the corruption case. Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mauro Carvalho Chehab 提交于
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Steven Toth 提交于
cx23885: Enable cx23417 support on the HVR1800 Signed-off-by: NSteven Toth <stoth@hauppauge.com> Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Steven Toth 提交于
cx23885: Add generic cx23417 hardware encoder support. Signed-off-by: NSteven Toth <stoth@hauppauge.com> Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Change how list of possible pvrusb2 inputs is generated to include only those interfaces that make sense for the interface instance. Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
In the pvrusb2 driver, different interfaces (e.g. V4L, DVB) have Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Michael Krufky 提交于
These changes are required with the addition of digital television support for the Hauppauge HVR1900 & HVR1950, the OnAir Creator and Sasem USB HDTV Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Michael Krufky 提交于
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Adrian Bunk 提交于
This patch contains the following cleanups: - make the following needlessly global function static: - pvr2_hdw_set_cur_freq() - #if 0 the following unused global functions: - pvr2_hdw_get_state_name() - pvr2_hdw_get_debug_info_unlocked() - pvr2_hdw_get_debug_info_locked() Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Apparently the kernel developers no longer consider it proper etiquette to use __FUNCTION__; everyone must instead use __func__ (even though it breaks with older compilers). And worse still, actual effort is being expended to sweep this change throughout the kernel source tree. Don't these people have better things to do? So... Completely clean out all use of __FUNCTION__ from the pvrusb2 driver (it was just in the sysfs interface). I'm not going to use __func__ either. So there. Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
The pvrusb2 driver was getting had by this scenario: 1. Task A calls kthread_stop() for task B. 2. Before exiting, then Task B calls kthread_stop() for task C. The problem is, kthread_stop() wants to allocate an internal resource to itself (i.e. acquire a lock), which won't be released until kthread_stop() returns. But kthread_stop() won't return until task B is dead. But task B won't die until it finishes its call to kthread_stop() for task C, and that will block waiting on the resource already allocated inside task A. Deadlock. With the pvrusb2 driver, task A is the caller to pvr_exit(), task B is the control thread run inside of pvrusb2-context.c, and task C is any worker thread run inside of pvrusb2-hdw.c. This problem got introduced by the previous threading setup change, which was itself an attempt to fix a module tear-down race (which it actually did fix). The lesson here is that a task being waited on as part of a kthread_stop() simply cannot be allow to also issue a kthread_stop() - or we make sure not to issue the enclosing kthread_stop() until we know that the inner kthread_stop() has completed first. The solution for the pvrusb2 driver is some hackish code which changes the main control thread tear down into a two step process. This then makes it possible to delay issuing the kthread_stop() on the control thread until after we know that everything has been torn down first. (And yes, we really need that kthread_stop() because it's the only way to safely guarantee that a module-referencing kernel thread has safely returned back out of the module before we finally remove the module.) Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Earlier fix to handle DVB feed thread aborts was overly-aggressive. We can take better advantage of what kthread_stop() can do. This change simplifies things. Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
If a disconnect happens before initialization is completed, the pvrusb2 driver can accidentally touch dangling pointers. The whole initialization function must be protected by the big_lock, and once inside that lock, the initialization function should abort if it is discovered that a disconnect has already taken place. Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
The pvrusb2 driver - for basically forever - was not enforcing a proper module tear-down. Kernel threads are used inside the driver and all must be gone before the module can be safely removed. This changeset reimplements a chunk of pvrusb2-context.c to enforce this correctly. Unfortunately this is not a simple fix. The new implementation also cuts back on kernel thread usage; instead of there being 1 control thread per instance now it's just 1 control thread shared by all instances. (By dropping to a single thread then the module exit function can block on its shutdown and the thread itself can monitor and cleanly shut down all of the other instances first.) Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Implement timed measurement of encoder operation for the first time it is run. This allows the driver to note when the encoder has been run successfully for at least 1/4 second. On top of that implement various bits to ensure that the encoder has been run once before digital streaming for OnAir devices. This is done via several core state machine tweaks. Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Some tuners seem to not work in digital mode unless the encoder is healthy. Implement a device attribute to represent this flag and modify the core state machines to enforce this requirement. Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
If the device fails to stream, the feed thread will block forever waiting for buffers. But while in this state it was not looking for an exit condition from the driver DVB interface. This caused the thread to jam. Implement a new stop flag (which will be set appropriately) to tell the thread to stop. Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Michael Krufky 提交于
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org> Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Michael Krufky 提交于
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Michael Krufky 提交于
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org> Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
When the DVB interface is not compiled, the pvr2_dvb_props struct is not available - so it really should be ifdef'ed out as well. This didn't cause an error because in this context its usage was as an opaque pointer. But it really shouldn't be present at all if DVB is not enabled. Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
The commands to start / stop USB streaming for an analog device are fairly standard, owing to the fact that all supported devices apparently started from the same common reference design. However with digital mode, the commands seem to vary by vendor. This change makes that variance more explicit. It also cleans up a related problem for OnAir devices which prevented digital mode from working at all. Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Numerous places in the driver need to issue simple commands to the FX2 microcontroller (e.g. only 1 or 2 bytes, no reply needed). Previously each place that did this, had to take lock, set up a central buffer, and call the function to perform the handshake. This change puts these steps into a single spot. This also has the effect of removing the need to mess with the control lock from numerous places in the code. Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Implement a mechanism in the pvrusb2 driver for gathering statistics on the stream buffering, including bytes transferred, buffers handled, buffers in flight, etc. This is useful for debugging certain classes of streaming issues and for determining if the buffer pool size is generally correct for the driver. Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Mike Isely 提交于
Signed-off-by: NMike Isely <isely@pobox.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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