On a 64-bit system there is a 32-bit hole in struct snd_pcm_constraint_list
and then 32-bit padding at the end. Reordering things slightly gets rid of
the hole and padding, reducing the size of the struct by 50% from its
original size.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

On a 64-bit system there are two 32-bit holes due to the alignment of 64-bit
fields. Reordering things slightly gets rid of those holes, reducing the
size of the struct by 17% percent of its original size.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

A few minor cleanups:
- Move the call of snd_info_minor_register() into snd_info_init() so
  that we can call all proc-related stuff in a shot
- Add missing __init prefix to snd_info_minor_register()
- Return an error properly from snd_oss_info_register()
- Drop snd_info_minor_unregister() that is superfluous now
Acked-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Minor cleanups of Makefile to build some codes conditionally so that
a few ifdefs can be reduced.
Acked-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

So far we've ignored the errors at creating proc files in many places.
But they should be rather treated seriously.

Also, by assuring the error handling, we can get rid of superfluous
snd_info_free_entry() calls as they will be removed by the parent in
the caller side.

This patch fixes the missing error checks and reduces the superfluous
free calls.
Acked-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Since each proc entry is freed automatically by the parent, we don't
have to take care of its life cycle any longer.  This allows us to
reduce a few more lines of codes.
Acked-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Using snd_info_entry for /proc/asound root makes easier to release the
all children, too.  Further cleanups will follow.
Acked-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

This patch changes the way to manage the resource release of proc
files: namely, let snd_info_free_entry() freeing the whole children.

This makes it us possible to drop the snd_device_*() management.  Then
snd_card_proc_new() becomes merely a wrapper to
snd_info_create_card_entry().

Together with this change, now you need to call snd_info_free_entry()
for a proc entry created via snd_card_proc_new(), while it was freed
via snd_device_free() beforehand.
Acked-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Currently, snd_info_init() just returns an error without releasing the
previously assigned resources at error path.  The assigned proc and
info entries have to be released properly.  This patch covers it.

While we are at it, refactor the code a bit, too.
Acked-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

seq_file is _the_ standard interface for simple text proc files.
Though, we still need to support the binary proc files and the text
file write, and also we need to manage the device disconnection
gracefully.  Thus this patch just replaces the text file read code
with seq_file while keeping the rest intact.

snd_iprintf() helper function is now a macro to expand itself to
seq_printf() to be compatible with the existing code.  The seq_file
object is stored to the unused entry->rbuffer->buffer pointer.

When the output size is expected to be large (greater than PAGE_SIZE),
the driver should set entry->size field beforehand.  Then the given
size will be preallocated and the multiple show calls can be avoided.
Acked-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Signed-off-by: Takashi Iwai <tiwai@suse.de>

This will be used by hda controller driver to
setup stream params in prepare. This function will
setup the bdl and periods.
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Add HDA_DEV_ASOC device/driver type to support
ASoC HDA drivers.
Signed-off-by: Ramesh Babu <ramesh.babu@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

This flag seems used commonly, so deserves to be located there.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Originally hda_bus takes its own ops (hda_bus_ops) to allow different
controller drivers giving individual implementations of PCM
attachment, etc.  But this never happened and we finally merged both
codec and controller helper codes.  Thus there is no merit to keep the
indirect accesses to functions via hda_bus_ops.

This patch replaces these calls with the direct local function calls
for simplification.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Replace occurences of the pci api by appropriate call to the dma api.

A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr)

@deprecated@
idexpression id;
position p;
@@

(
  pci_dma_supported@p ( id, ...)
|
  pci_alloc_consistent@p ( id, ...)
)

@bad1@
idexpression id;
position deprecated.p;
@@
...when != &id->dev
   when != pci_get_drvdata ( id )
   when != pci_enable_device ( id )
(
  pci_dma_supported@p ( id, ...)
|
  pci_alloc_consistent@p ( id, ...)
)

@depends on !bad1@
idexpression id;
expression direction;
position deprecated.p;
@@

(
- pci_dma_supported@p ( id,
+ dma_supported ( &id->dev,
...
+ , GFP_ATOMIC
  )
|
- pci_alloc_consistent@p ( id,
+ dma_alloc_coherent ( &id->dev,
...
+ , GFP_ATOMIC
  )
)
Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

They are no longer used (only one place which can be replaced with a
proper helper function).  Let's drop.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

I seem to have failed to run the build test properly...
   sound/pci/hda/hda_tegra.c: In function 'hda_tegra_dev_free':
   sound/pci/hda/hda_tegra.c:310:20: error: 'bus' undeclared (first use in this function)
         snd_hdac_bus_exit(bus);
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

After correcting the fields to point the right members, tracepoints
can be reenabled again for the legacy controller code.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

For fixing randconfig build errors like:

   sound/hda/hdac_stream.c: In function 'azx_timecounter_init':
   sound/hda/hdac_stream.c:365:2: error: implicit declaration of function 'CLOCKSOURCE_MASK' [-Werror=implicit-function-declaration]
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

DEVICE_ALI previously would jump to port_inited after calling
pci_iomap(), bypassing the check for bmaddr being NULL.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Because AZX_DCAPS_PM_RUNTIME is always defined as non-zero, the
initial part of the expression can be skipped.
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Signed-off-by: Takashi Iwai <tiwai@suse.de>

Move the small portion of the common sequence in hda_intel.c and
hda_tegra.c into hda_controller.c.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

... and replace with the existing hda-core helper codes.
This reduces lots of lines, finally.

Since struct hda_bus is now embedded into struct azx,
snd_hda_bus_new() is moved and expanded from hda_codec.c to
hda_controller.c, accordingly.  Also private_free bus ops and
private_data field are removed because we no longer need to point azx
object from bus (we can use container_of())

The spin locks are consolidated into the single one, bus->reg_lock.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

... including dsp loader helpers.  Lots of codes removed.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Embed hdac_stream object into azx_dev, and use a few basic helper
functions.  The most of helper codes for hdac_stream aren't still used
yet.

Also this commit disables the tracepoints temporarily due to build
problems.  It'll be enabled again later.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

One less redirection again.  This also requires the change of the call
order in the toplevel divers.  Namely, the bus has to be created at
first before other initializations since the memory allocation ops are
called through bus object now.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

One less redirection.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

There is no much merit to keep the HD-audio codec and controller
helper codes in separate modules any longer.  Let's merge them into a
single helper module.

This patch just changes Makefile entries to merge two individual
modules to one.  The only code change is the removal of superfluous
MODULE_*() macros in one side.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Moved azx_alloc_stream_pages and azx_free_stream_pages
to controller library.
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Copied from the legacy driver code, no transition done yet.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

This patch adds the controller helper codes to hda-core library.
The I/O access ops are added to the bus ops.  The CORB/RIRB, the basic
attributes like irq# and iomap address, some locks and the list of
streams are added to the bus object, together with the stream object
and its helpers.

Currently the codes are just copied from the legacy driver, so you can
find duplicated codes in both directories.  Only constants are removed
from the original hda_controller.h.  More integration work will follow
in the later patches.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

... and drop bus->rirb_error flag.  This makes the code simpler.

We treat -EAGAIN from get_response ops as a special meaning: it allows
the caller to retry after bus reset.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Some HD-A codecs may add their own vendor 'set' verb to the regmap, thru func
snd_hdac_add_vendor_verb(). This patch sets the GET bit (bit 11)  when adding
the verb so that its peer vendor 'get' verb is actually added. This can avoid
I/O error when writing the 'set' verb thru remap, since HD-A regmap internally
looks up a writable vendor verb with GET bit set at first.
Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Merge tag 'asoc-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v4.1

More updates for v4.1, pretty much all drivers:

 - Lots of cleanups from Lars, mainly moving things from the CODEC level
   to the card level.
 - Continuing improvements to rcar from Morimoto-san, pcm512x from
   Howard and Peter, the Intel platforms from Vinod, Jie, Jin and Han,
   and to rt5670 from Bard.
 - Support for some non-DSP Qualcomm platforms, Google's Storm
   platform, Maxmim MAX98925 CODECs and the Ingenic JZ4780 SoC.

The Lenovo Thinkpad T450 requires the ALC292_FIXUP_TPT440_DOCK as well in
order to get working sound output on the docking stations headphone jack.

Patch tested on a Thinkpad T450 (20BVCTO1WW) using kernel 4.0-rc7 in
conjunction with a ThinkPad Ultradock.
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Although some races in runtime PM refcount was fixed by the commit
[664c7155: ALSA: hda - Work around races of power up/down with
runtime PM], there is still a race in the following case:

CPU0:                   CPU1 :
runtime suspend:
  codec->in_pm = 1
                        snd_hdac_power_up_pm():
                          pm_runtime_get_sync() skipped
suspend finished:
  codec->in_pm = 0
                        snd_hdac_power_down_pm():
                          pm_runtime_put_*() is called!

For avoiding this situation, increment in_pm flag atomically when it's
non-zero, and decrement accordingly, to ensure that in_pm is set
consistently for the whole concurrent operations.

Also, since atomic_inc_not_zero() and atomic_dec_if_positive() are
lengthy inline functions, move snd_hdac_power_up_pm() and _down_pm()
to sound/hda/hdac_device.c as no inline functions.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

The type field of HD-audio codec object should be exposed to
user-space so that it can identify which driver type to bind (legacy /
asoc).
Signed-off-by: Takashi Iwai <tiwai@suse.de>