- 26 Feb, 2007 14 commits
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Eric W. Biederman authored
The problem: After moving an interrupt when is it safe to teardown the data structures for receiving the interrupt at the old location? With a normal pci device it is possible to issue a read to a device to flush all posted writes. This does not work for the oldest ioapics because they are on a 3-wire apic bus which is a completely different data path. For some more modern ioapics when everything is using front side bus delivery you can flush interrupts by simply issuing a read to the ioapic. For other modern ioapics emperical testing has shown that this does not work. So it appears the only reliable way to know the last of the irqs from an ioapic have been received from before the ioapic was reprogrammed is to received the first irq from the ioapic from after it was reprogrammed. Once we know the last irq message has been received from an ioapic into a local apic we then need to know that irq message has been processed through the local apics. Signed-off-by:
Eric W. Biederman <ebiederm@xmission.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Eric W. Biederman authored
For the ISA irqs we reserve 16 vectors. This patch adds constants for those vectors and modifies the code to use them. Making the code a little clearer and making it possible to move these vectors in the future. Signed-off-by:
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Eric W. Biederman authored
The code in io_apic.c and in i8259.c currently hardcode the same vector for the timer interrupt so there is no reason for a special assignment for the timer as the setup for the i8259 already takes care of this. Signed-off-by:
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Eric W. Biederman authored
Currently assign_irq_vector works mostly by side effect and returns the results of it's changes to the caller. Which makes for a lot of arguments to pass/return and confusion as to what to do if you need the status but you aren't calling assign_irq_vector. This patch stops returning values from assign_irq_vector that can be retrieved just as easily by examining irq_cfg, and modifies the callers to retrive those values from irq_cfg when they need them. Signed-off-by:
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Eric W. Biederman authored
Currently the io_apic.c has several parallel arrays for different kinds of data that can be know about an irq. The parallel arrays make the code harder to maintain and make it difficult to remove the static limits on the number of the number of irqs. This patch pushes irq_data and irq_vector into a irq_cfg array and updates the code to use it. Signed-off-by:
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Eric W. Biederman authored
NR_IRQ_VECTORS is currently a compatiblity define set to NR_IRQs. This patch updates the users of NR_IRQ_VECTORS to use NR_IRQs instead so that NR_IRQ_VECTORS can be removed. There is still shared code with arch/i386 that uses NR_IRQ_VECTORS so we can't remove the #define just yet :( Signed-off-by:
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Eric W. Biederman authored
If we have an irq that comes from multiple io_apic pins the FINAL action (which is io_apic_sync or nothing) needs to be called for every entry or else if the two pins come from different io_apics we may not wait until after the action happens on the io_apic. Signed-off-by:
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Eric W. Biederman authored
For some reason the code has been picking TARGET_CPUS when asked to set the affinity to an empty set of cpus. That is just silly it's extra work. Instead if there are no cpus to set the affinity to we should just give up immediately. That is simpler and a little more intuitive. Signed-off-by:
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Eric W. Biederman authored
Currently we have two routines that do practically the same thing setup_IO_APIC_irq and io_apic_set_pci_routing. This patch makes setup_IO_APIC_irq the common factor of these two previous routines. For setup_IO_APIC_irq all that was needed was to pass the trigger and polarity to make the code a proper subset of io_apic_set_pci_routing. Hopefully consolidating these two routines will improve maintenance there were several differences that simply appear to be one routine or the other getting it wrong. Signed-off-by:
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Eric W. Biederman authored
Signed-off-by:
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Eric W. Biederman authored
It's dead Jim. Signed-off-by:
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Eric W. Biederman authored
This patch replaces all instances of "set_native_irq_info(irq, mask)" with "irq_desc[irq].affinity = mask". The latter form is clearer uses fewer abstractions, and makes access to this field uniform accross different architectures. Signed-off-by:
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Eric W. Biederman authored
By precomputing old_mask I remove an extra if statement, remove an indentation level and make the code slightly easier to read. Signed-off-by:
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Linus Torvalds authored
This reverts commit 2ff2d3d7. Uwe Bugla reports that he cannot mount a floppy drive any more, and Jiri Slaby bisected it down to this commit. Benjamin LaHaise also points out that this is a big hot-path, and that interrupt delivery while idle is very common and should not go through all these expensive gyrations. Fix up conflicts in arch/i386/kernel/apic.c and arch/i386/kernel/irq.c due to other unrelated irq changes. Cc: Stephane Eranian <eranian@hpl.hp.com> Cc: Andi Kleen <ak@suse.de> Cc: Andrew Morton <akpm@osdl.org> Cc: Uwe Bugla <uwe.bugla@gmx.de> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by:
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- 21 Feb, 2007 26 commits
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] One line missing from previous commit [CIFS] mtime bounces from local to remote when cifs nocmtime i_flags overwritten [CIFS] fix &&/& typo in cifs_setattr()
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Linus Torvalds authored
This reverts commit d2ed1635. As Thomas Gleixner reports: "e1000 is not working anymore. ifup fails permanentely. ADDRCONF(NETDEV_UP): eth0: link is not ready nothing else" The broken commit was identified with "git bisect". Auke Kok says: "I think we need to drop this now. The report that says that this *fixes* something might have been on regular interrupts only. I currently suspect that it breaks all MSI interrupts, which would make sense if I look a the code. Very bad indeed." Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by:
Auke Kok <auke-jan.h.kok@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by:
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Linus Torvalds authored
Not only was the function way too big to be inlined in the first place, it was used before it was even defined. Noted-by:
Faik Uygur <faik@pardus.org.tr> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by:
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Linus Torvalds authored
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (196 commits) V4L/DVB (5253): Qt1010: whitespace / 80 column cleanups V4L/DVB (5252): Qt1010: use ARRAY_SIZE macro when appropriate V4L/DVB (5251): Qt1010: fix compiler warning V4L/DVB (5249): Fix compiler warning in vivi.c V4L/DVB (5247): Stv0297: Enable BER/UNC counting V4L/DVB (5246): Budget-ci: IR handling fixups V4L/DVB (5245): Dvb-ttpci: use i2c gate ctrl from stv0297 frontend driver V4L/DVB (5244): Dvbdev: fix illegal re-usage of fileoperations struct V4L/DVB (5178): Avoid race when deregistering the IR control for dvb-usb V4L/DVB (5240): Qt1010: use i2c_gate_ctrl where appropriate V4L/DVB (5239): Whitespace / 80-column cleanups V4L/DVB (5238): Kconfig: qt1010 should be selected by gl861 and au6610 V4L/DVB (5237): Dvb: add new qt1010 tuner module V4L/DVB (5236): Initial support for Sigmatek DVB-110 DVB-T V4L/DVB (5235): Gl861: use parallel_ts V4L/DVB (5234): Gl861: remove unneeded declaration V4L/DVB (5233): Gl861: correct address of the bulk endpoint V4L/DVB (5232): Gl861: correct oops when loading module V4L/DVB (5231): Gl861: whitespace cleanups V4L/DVB (5230): Gl861: remove NULL entry from gl861_properties ...
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Michael Krufky authored
Signed-off-by:
Michael Krufky <mkrufky@linuxtv.org> Signed-off-by:
Mauro Carvalho Chehab <mchehab@infradead.org>
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Michael Krufky authored
Use ARRAY_SIZE macro already defined in kernel.h Signed-off-by:
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Marco Schluessler authored
In function 'qt1010_init': Signed-off-by:
Marco Schluessler <marco@lordzodiac.de> Signed-off-by:
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Marcel Siegert authored
The result of copy_to_user was not used, so the compiler complained now a warning will be issued if copy_to_user fails. Signed-off-by:
Marcel Siegert <mws@linuxtv.org> Signed-off-by:
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Hartmut Birr authored
Enable BER/UNC counting for the stv0297 frontend. The idea for this patch comes from stv0297_cs.c. Signed-off-by:
Hartmut Birr <e9hack@googlemail.com> Signed-off-by:
Oliver Endriss <o.endriss@gmx.de> Signed-off-by:
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David Hrdeman authored
Commit 00c4cc67 Oliver Endriss changed the budget-ci driver to use interrupt mode for i2c transfers. This also meant that a new bunch of IR bytes that were previously lost are now received, which allowed me to better understand how the MSP430 chip works. Unfortunately it also means that the current driver gets some assumptions wrong and might generate double keypresses for one IR command. The attached patch fixes this by throwing away the repeat bytes and by associating the correct command and device bytes. Signed-off-by:
David Härdeman <david@hardeman.nu> Signed-off-by:
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Marco Schluessler authored
Use i2c gate ctrl from stv0297 frontend driver. Signed-off-by:
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Marcel Siegert authored
Arjan van de Ven <arjan@infradead.org> reported an illegal re-usage of the fileoperations struct if more than one dvb device (e.g. frontend) is present. This patch fixes this issue. It allocates a new fileoperations struct each time a device is registered and copies the default template fileops. Signed-off-by:
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Chris Rankin authored
The work item function is dvb_usb_read_remote_control(): INIT_WORK(&d->rc_query_work, dvb_usb_read_remote_control, d); and the last piece of work it does is: schedule_delayed_work(&d->rc_query_work,msecs_to_jiffies(d->props.rc_interval)); Hence you need to call "cancel_rearming_delayed_work()" and not "cancel_delayed_work()", correct? I certainly haven't seen this oops reoccur since I applied this patch. Signed-off-by:Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Antti Palosaari authored
This patch adds calls to i2c_gate_ctrl in the qt1010 dvb tuner module, while removing the temporary hack in au6610 and gl861. Tested successfully against fi-Oulu frequencies with MSI Megasky 580 GL861 and Sigmatek DVB-110 AU6610. Signed-off-by:
Antti Palosaari <crope@iki.fi> Signed-off-by:
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Michael Krufky authored
Signed-off-by:
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Michael Krufky authored
Signed-off-by:
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Antti Palosaari authored
gl861: (MSI Megasky) - hack for enable ZL10353 / QT1010 I2C gate - use new QT1010 module instead of old code au6610: (Sigmatek DVB-110) - hack for enable ZL10353 / QT1010 I2C gate - use new QT1010 module instead of old code Tested successfully with au6610 and gl861 devices against fi-Yllas frequencies. Now it locks perfectly with both devices. There is a "hack" to enable probable i2c gate in zl10535 demodulator. QT1010 doesn't respond to any i2c messages before we write 0x1a to demodulator register 0x62. In my understanding this should be fixed to demodulator code. Signed-off-by:
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Antti Palosaari authored
This patch adds driver for Sigmatek DVB-110 USB DVB-T stick. Stick has based on hardware of Qtuantek QT1010 tuner, Zarlink ZL10353 (Intel CE 6353) demodulator and Alcor Micro AU6610 DVB-T USB controller. HW is rather similar as used in MSI Megasky GL861. Currently, the driver works only in USB 2.0. In my understanding USB 1.1 is also supported by hw but I cannot test it due to lack of USB 1.1 port. Device supports only isochronous mode transfers. There is also eeprom in usb controller(at least in address range 0x80 - 0xbf) for storing data, eg. firmware. Anyway, firmware loading is not used / required by the device. There seems to be at least one unknown I2C device in address 0xa0, probably remote control or GPIO. Windows drivers reads registers from 0x00 to 0x07 from this unknown address. Driver is based on gl861 module. Tuner has a lot of problems to lock with megasky qt1010 module with this hardware with some broadcasting standards. Signed-off-by:
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Carl Lundqvist authored
- use parallel_ts - Now this driver works. - correct typo in MODULE_VERSION Signed-off-by:
Carl Lundqvist <comabug@gmail.com> Signed-off-by:
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Michael Krufky authored
remove unneeded declaration of .generic_bulk_ctrl_endpoint generic_bulk_ctrl_endpoint isn't being used in this device, so this is not needed here. Signed-off-by:
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Jan Nijs authored
The megasky 580 based on gl861 has three endpoints: - 0x81 BULK/ISOC IN MPEG2 TS - 0x83 INT IN remote control receiver - 0x02 BULK OUT bulk control endpoint It doesn't look like the bulk endpoint is used, but better to have the correct one in the config. Signed-off-by:
Jan Nijs <jan.nijs@scarlet.be> Signed-off-by:
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Jan Nijs authored
This patch moves the DVB_USB_IS_AN_I2C_ADAPTER flag from the adapter properties to the device properties. Without this patch I get an OOPS when the gl861 driver tries to access any registers. Signed-off-by:
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Michael Krufky authored
Signed-off-by:
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Michael Krufky authored
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Michael Krufky authored
The gl861_tuner_attach function is not specific to this device. This patch removes gl861_tuner_attach, and replaces it with qt1010_tuner_attach from the qt1010 header file. Signed-off-by:
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Michael Krufky authored
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