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From: Andy Walls <awalls@radix.net>
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Remove variables that were holdovers from ivtv for supporting the CX23415
MPEG decoder output.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Give messages originating from internal subdevs a header using the subdev's
name. Fixed an uninitialized variable problem with reading the EEPROM, noticed
from log output. Got rid of the unused cx18_av_exit() function.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
We leaked buffers every time a device was removed, if the user had enabled
sliced VBI insertion into the MPEG stream. MythTV uses that.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Convert GPIO line functions, such a audio routing and device resets, to
v4l2_subdevices. This essentially completes the conversion of cx18 to the
v4l2_device/v4l2_subdevice framework. No regression testing has taken place as
of yet. Also an ivtv legacy bug with GPIO mux routing and going to/from radio
mode was commented, but not fixed.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
This is a major perturbation to cx18 I2C device handling to convert it to the
v4l2_device/subdeivce framework. This change breaks GPIO audio multiplexer
control for the time being. It will be fixed in a coming change.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Added a new chip identifer to v4l2-chip-ident for the integrated A/V broadcast
decoder core internal to the CX23418. Completed separation and encapsulation
of the A/V decoder core interface as a v4l2_subdevice. The cx18 driver now
compiles and links again.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Convert card instance handling to a lighter weight mechanism like ivtv.
Also convert name strings and debug messages to use v4l2_device.name.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Andy Walls <awalls@radix.net>
Sliced VBI, in the manner that ivtv implements it as a separate data stream,
now works for 525 line 60 Hz systems like NTSC-M. It may work for 625 line
50 Hz systems, but I have more engineering work to do, to verify it is operating
properly. Sliced data insertion into the MPEG PS should be working, but is
untested.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
The cx23418 appears to send Raw VBI buffers with a PTS on a per frame
basis, not per field, so process Raw VBI on a whole frame basis and reduce
some complexity. Fix VBI buffer size computation to handle a whole
frame of Raw VBI for a 625 line system, which is the worst case and will
work for 525 lines systems as well.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Removed legacy ivtv state variables, added comments, and cleaned
up sliced VBI related code. Enabled sliced VBI.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Card report provided by Patryk on the ivtv-devel list:
http://ivtvdriver.org/pipermail/ivtv-devel/2009-January/005922.html
Reported-by: Pat <tatyrza@mm.pl>
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
request_module() needs to be called with a string literal for a
format string or with 1 or more variable arguments to avoid
compiler warnings and possible exploits, if someone could cause
us to get a format string with a '%' code in the format string
when we make the call.
Reported-by: Brandon Jenkins <bcjenkins@tvwhere.com>
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
First step in conversion to the new V4L2 framework. Added per cx18 device
instance of the v4l2_device and its registration.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Renamed structure member name to be more specific to type in anticipation
of updating to the v4l2_device/v4l2_subdev framework. Too many objects named
"dev" and /v4l2_\{0,1\}dev/ would be to confusing.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Normalize the APU state before the second firmware load so that audio
for the first analog capture is correct.
Many thanks to Conexant for supporting me in finding a solution for this
problem.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Fix bugs in the cx18 AC3 control implementation that would have affected
ivtv and other drivers via the cx2341x module. Bring AC3 controls
behavior into comliance with V4L2 specification. Thanks to Hans Verkuil
for reviewing the previous patch and pointing out the problems.
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Initial addition of controls to set AC-3 audio encoding for the CX23418 - it
does not work yet due to firmware or cx18 driver issues. This change affects
the common cx2341x and ivtv modules due to shared structures and
common functions.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Refine the firmware load and firmware startup process. Significant changes
are to ensure the SCB and IPC area are correct before starting up the firmware,
and letting the CPU firmware start up the APU firmware for us.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
VBI comment corrections to avoid future confusion about standards.
Comments on cx18 VBI implementation shortcomings that need resolution.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
A combined authorship patch from Hans Verkuil and Andy Walls. Raw
VBI can now be captured but requires a video capture to be in progress as well.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Andy Walls <awalls@radix.net>
This is a port of the fixes Hans Verkuil made for ivtv/cx25840:
The service_set field was used to determine whether raw or sliced VBI was
desired. This is incorrect since it is perfectly valid to select sliced VBI
with a service_set of 0.
Instead the driver should check on VIDIOC_S_FMT whether the type
field matches the raw or sliced VBI type.
Updated the cx18 driver accordingly, including an additional check in
cx18_start_v4l2_encode_stream() that didn't exist in ivtv.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Add module parameters for finer control over buffer allocations.
User now has the option of setting smaller buffers to get lower
latency transfers from the encoder. User can also now set the number
of buffers used for a stream explicitly.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
For kernels earlier than 2.6.22, we can't cancel work, so we have to flush the
work queue to completion before destroying it.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Change to per CX23418 device work queues for deferrable work handling.
Needed to support 2.6.22 and earlier kernels that can't selectively cancel
work orders. Also will provide slightly better performance on SMP systems.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Adjust outgoing mailbox timeouts and remove statistics logging.
This saves some wasted storage in struct cx18 for each card. Cutting
the outgoing mailbox timeouts in half from the previous value appears to
be safe with MythTV. Got rid of interrupted case code path after
a wait uninterruptable returns.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Streamline cx18-io[ch] wrappers and enforce MMIO retry strategy so that
write retries always occur and read retries never occur (as they never help).
Remove MMIO statistics logging to speed up MMIO accesses. Deprecate & ignore
retry_mmio and mmio_ndelay module parameters, to essentially force
retry_mmio=1 and mmio_ndelay=0.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Change to singlethreaded global work queue thread for deferable work,
instead of the kernel default multithreaded work queue. This ensures
execution of deferable work is always in the proper order, so caputred buffers
don't get reordered.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
A major rewrite of interrupt handling for incoming mailbox processing, to split
the timing critical steps from the the deferrable steps as the sending XPU on
the CX23418 will time out and overwrite our incoming mailboxes rather quickly.
Setup a pool of work "order forms" for the irq handler to send jobs to the new
work handler routine which uses the kernel default work queue to do the
deferrable work. Started optimizing some of the cx18-io calls as they are now
the low hanging fruit for recoving microseconds back from the timeline.
Future optimizations will get rid of mmio read retries, mmio stats logging, and
combine smaller functions in the irq path into the larger ones to save ~2 us
each.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Andy Walls <awalls@radix.net>
All waits for cx18 mailbox API commands are now uninterruptable. Added
code to collect mailbox ack statistics. Tweaked timeouts based on collected
stats and video vertical frame and field rates.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Add mutexes to ensure exclusive access for outgoing driver to CX23418 mailboxes.
Also wait on a waitq for mailbox acknowledgement from the CX23418 instead of
polling.
Priority: high
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Use default kernel work queue; fix streaming flag for work handler.
Eliminate cx18 specific work queue and use the kernel default work queue.
Fixed the F_STREAMING_FLAG for the TS stream so cx18_dvb_work_handler()
can know when it is not safe to send MDLs to the firmware.
Priority: high
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Move DVB buffer transfer handling from irq handler to work_queue thread.
In order to properly lock the epu2cpu mailbox for driver to CX23418 commands,
the DVB/TS buffer handling needs to be moved from the IRQ handler and IRQ
context to a work queue. This work_queue implmentation is strikingly similar
to the ivtv implementation - for better or worse.
Priority: high
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Use correct Mailbox IRQ Ack values and misc IRQ handling cleanup.
The SCB field definitions for Ack IRQ's for mailboxes were inconsistent with
the bitmasks being loaded into those SCB fields and the SW2 Ack IRQ handling
logic. Renamed fields in SCB to make things consistent and did misc IRQ
handling cleanups: removing legacy ivtv dma_reg_lock, HPU IRQ flags, etc.
Priority: high
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Remove redundant block scope variable in cx18_probe() to eliminate sparse
build warning.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
Changes to let error return codes bubble up to the user visible
error message on card initialization. A number of them were being remapped to
ENOMEM when no memory or array resource shortage existed. That hampered
diagnosis of user trouble reports.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
On error exit, the cx18_probe() function did not use the proper entry in
cx18_cards[] with kfree() when card init failed; leaking memory.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Andy Walls <awalls@radix.net>
cx18: Add entries for the Leadtek PVR2100 and Toshiba Qosmio DVB-T/Analog
capture cards. Both cards are hybrids cards, but no digital capture
functionality has been added yet. These entries are a first guess at the card
entries to get analog working, given the information available. Terry Wu
<terrywu at leadtek.com.tw> provided a pointer to information for the PVR2100.
Martin Juhl <mj at casalogic.dk>, an owner of the Toshiba DVB-T/Analog tuner
card, provided the DDR timing information from his Windows inf file.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Hans Verkuil <hverkuil@xs4all.nl>
The v4l core creates four different video devices (video, vbi, radio, vtx)
and each has its own range of minor numbers. However, modern devices keep
increasing the number of devices that they need so a maximum of 64 video
devices will not be enough in the future. In addition this scheme makes
it very hard to add new device types.
This patch disconnects the kernel number allocation (e.g. video0, video1,
etc.) from the actual minor number (just pick the first free minor).
This allows for much more flexibility in the future. However, it does
require the use of udev. For those who cannot use udev a new CONFIG option
was created that changes the allocation scheme back to the old behavior.
Thanks to Greg KH for suggesting this approach during the 2008 LPC.
In addition, several bugs were fixed in the ivtv and cx18 drivers: these
drivers try to allocate specific kernel numbers but that scheme contained
a bug which caused what should have been e.g. video17 to appear as e.g.
video2.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Andy Walls <awalls@radix.net>
cx18: Add default behavior of checking and retrying PCI MMIO accesses.
The concept of checking and retrying PCI MMIO accesses for better reliability
in older motherboards was suggested by Steve Toth <stoth@linuxtv.org>. This
change implements MMIO retries and the retry_mmio module parameter that is
enabled by default. Limited experiments have shown this is more reliable than
the mmio_ndelay parameter. mmio_ndelay has insignificant effect with retries
enabled.
Priority: high
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Fixed a trivial conflict between a janitor's patch from Hans Verkuil and
Andy patch series.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Andy Walls <awalls@radix.net>
cx18: Throttle mmio to/from the CX23418 so boards work in older systems. The
CX23418 couldn't reliably handle mmio at the rate at which the cx18 driver was
attempting to access the chip. The PCI bridge arrangements and settings on
modern motherboards still allowed the CX23418 to work OK, but it didn't work
well on many older motherboards: mysterious I2C errors, firmware loading errors,
etc. This patch adds a throttle to *all* mmio access to the CX23418. It
defaults to a delay of 31 ns, but is adjustable by the mmio_ndelay module parm.
My HVR-1600 and Raptor PAL/SECAM card now function for analog capture on a
motherboard with an Intel 82810E Northbridge and 82801AA Southbridge.
Priority: high
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Create cx18_ specific wrappers for all pci mmio accessesors. This is a
first step in instrumenting all CX23418 PCI bus IO, to debug problems with
accessing the CX23418's PCI memory mapped IO.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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