Wireless USB endpoint state has a sequence number and a current
window and not just a single toggle bit. So allow HCDs to provide a
endpoint_reset method and call this or clear the software toggles as
required (after a clear halt, set configuration etc.).
usb_settoggle() and friends are then HCD internal and are moved into
core/hcd.h and all device drivers call usb_reset_endpoint() instead.
If the device endpoint state has been reset (with a clear halt) but
the host endpoint state has not then subsequent data transfers will
not complete. The device will only work again after it is reset or
disconnected.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The client_register and client_unregister methods are optional so
there is no point in defining stub ones. Especially when these methods
are likely to be removed soon.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It is no longer needed to use a struct pointer as argument, since v4l2_subdev
doesn't require that ioctl-like approach anymore. Instead just pass the input,
output and config (new!) arguments directly.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The functions v4l2_i2c_new_subdev and v4l2_i2c_new_probed_subdev relied on
i2c_get_adapdata to return the v4l2_device. However, this is not always
possible on embedded platforms. So modify the API to pass the v4l2_device
pointer explicitly.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
s_std didn't belong in the tuner ops. Stricly speaking it should be part of
the video ops, but it is used by audio and tuner devices as well, so it is
more efficient to make it part of the core ops.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The init callback was used in several places to load firmware. Make a separate
load_fw callback for that. This makes the code a lot more understandable.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Any time a struct (especially one not defined by this driver) is
allocated, we MUST zero its underlying storage. This makes our usage
of the struct predictable and robust against future changes where
fields might be added that we don't know about. Failing to do this
with tuner_setup left the config field uninitialized which then caused
trouble with the tuner type used for HVR-1950 devices.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Forgot to include the tda9887 component when moving to v4l2-subdev. I
got fooled because its name is "tuner", the same as the tuner module.
Silly me.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Remove ancient IVTV_IOC_G_CODEC and IVTV_IOC_S_CODEC ioctl functions
from the pvrusb2 driver. These are very very old, were non-standard,
and were only present to keep MythTV happy (their implementation did
nothing except to report success). That was long ago; no recent
versions of MythTV should require this anymore.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This change removes the old i2c module controlling layer from the
pvrusb2 driver. This is code that first had appeared in the driver
back in December 2005. It's history. Now we use v4l2-subdev. Please
note also that with this change, the driver will no longer be usable
in kernels older that 2.6.22.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The v4l2-subdev infrastructure requires that an initialization call
must be issued to all attached sub-devices before normal operation can
start. This change satisfies that requirement.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
When a pvrusb2 driver instance first initializes, we need to be sure
to send out a complete state update for everything to all attached
modules. The old i2c layer did this by keeping a separate mask of
"stale" bits for each attached module - and setting that mask to all
stale when that module attaches. But the new sub-device adaptation
I've implemented here no longer has per-module stale bits. So instead
there's now a global "force dirty" bit that is set upon instance
initialization, before the sub-devices are attached. After the first
update, this bit is cleared, allowing for normal update-on-dirty
behavior. In this manner, we ensure that all sub-devices have been
properly synchronized at initialization.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The tuner sub-device isn't going to work very well unless we tell it
the correct tuner type to use...
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The sub-device update mechanism relies on various "dirty" bits in the
driver in order to know what pieces of state need to be propagated out
to the various sub-devices. But that won't work if the dirty bits are
cleared before the update gets a chance to run. This change ensures
that the update takes place before the dirty bits are cleared.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
A sub-device won't successfully attach to our I2C adapter if its class
isn't set to zero. Right the class is still set to
I2C_CLASS_TV_ANALOG in order to allow the old mechanism to still
work. This change temporarily sets the class to zero during the
interval when the sub-device attaches. This code will get removed
when the old i2c layer is finally removed from the driver.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The pvrusb2 driver had previously been using i2c module specific calls
to set the sample rate (a long long time ago this was needed). These
days it is safe to use a broadcast so let's just broadcast this when
communicating audio sample rate to sub-devices.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Lay down a foundation whereby it becomes possible to send customized
updates to specific sub-devices. (This becomes useful for routing
configuration, which is a very sub-device specific operation.)
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The pvrusb2 driver has a function that reports internal state. It can
be accessed from either the debug interface or as the result of a v4l
log status request. This change adds information listing sub-devices
to the report.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Other code may need to treat the video decoder sub-device in a special
manner, so this change implements code to recognize when such a
sub-device is connected to the driver, does any special processing for
it, and notes who the device is for future reference.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
