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  1. 23 3月, 2015 12 次提交
    • T
      ALSA: hda - Use regmap for amp accesses · eeecd9d1
      由 Takashi Iwai 提交于 
      This patch converts the amp access functions to the regmap helpers.
The amp values were formerly cached in the own hash table.  Now it's
dropped by the regmap's cache.

The only tricky conversion is snd_hda_codec_amp_init().  This function
shouldn't do anything if the amp was already initialized.  For
achieving this behavior, a value is read once at first temporarily in
the cache-only mode.  Only if it returns an error,  i.e. the item
still doesn't exist in the cache, it proceeds to the update.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      eeecd9d1
    • T
      ALSA: hda - Implement uncached version of parameter reads · 9ba17b4d
      由 Takashi Iwai 提交于 
      Sometimes we need the uncached reads, e.g. for refreshing the tree.
This patch provides the helper function for that and uses it for
refreshing widgets, reading subtrees and the whole proc reads.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      9ba17b4d
    • T
      ALSA: hda - Use regmap for codec parameter reads · 01ed3c06
      由 Takashi Iwai 提交于 
      Let's start converting the access functions to regmap.
The first one is the simplest, just converting the codec parameter
read helper function snd_hda_param_read().
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      01ed3c06
    • T
      ALSA: hda - Add regmap support · 4d75faa0
      由 Takashi Iwai 提交于 
      This patch adds an infrastructure to support regmap-based verb
accesses.  Because o the asymmetric nature of HD-audio verbs,
especially the amp verbs, we need to translate the verbs as a sort of
pseudo registers to be mapped uniquely in regmap.

In this patch, a pseudo register is built from the NID, the
AC_VERB_GET_* and 8bit parameters, i.e. almost in the form to be sent
to HD-audio bus but without codec address field.  OTOH, for writing,
the same pseudo register is translated to AC_VERB_SET_* automatically.
The AC_VERB_SET_AMP_* verb is re-encoded from the corresponding
AC_VERB_GET_AMP_* verb and parameter at writing.

Some verbs has a single command for read but multiple for writes.  A
write for such a verb is split automatically to multiple verbs.

The patch provides also a few handy helper functions.  They are
designed to be accessible even without regmap.  When no regmap is set
up (e.g. before the codec device instantiation), the direct hardware
access is used.  Also, it tries to avoid the unnecessary power-up.
The power up/down sequence is performed only on demand.

The codec driver needs to call snd_hdac_regmap_exit() and
snd_hdac_regmap_exit() at probe and remove if it wants the regmap
access.

There is one flag added to hdac_device.  When the flag lazy_cache is
set, regmap helper ignores a write for a suspended device and returns
as if it was actually written.  It reduces the hardware access pretty
much, e.g. when adjusting the mixer volume while in idle.  This
assumes that the driver will sync the cache later at resume properly,
so use it carefully.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      4d75faa0
    • T
      ALSA: hda - Move generic array helpers to core lib · 71fc4c7e
      由 Takashi Iwai 提交于 
      This will be used by the regmap support.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      71fc4c7e
    • T
      ALSA: hda - Re-add tracepoints to HD-audio core driver · e311782a
      由 Takashi Iwai 提交于 
      Now let's take the basic tracepoints back to the HD-audio driver.
The three bus tracepoints, hda_send_cmd, hda_get_response and
hda_unsol_event are revived but in a slightly different form.
Since we don't assign the card number there, print the bus device name
instead.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      e311782a
    • T
      ALSA: hda - Fix possible runtime PM refcount unbalance · c4c2533f
      由 Takashi Iwai 提交于 
      When the driver is unloaded before the codec is bound, it still keeps
the runtime PM refcount up, and results in the unbalance.  This patch
covers these cases by introducing a flag indicating the runtime PM
initialization and handling the codec registration procedure more
properly.  It also fixes the missing input beep device as a gratis,
too.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      c4c2533f
    • T
      ALSA: hda - Support indirect execution of verbs · 05852448
      由 Takashi Iwai 提交于 
      Add an overriding exec_verb op to struct hdac_device so that the call
via snd_hdac_exec_verb() can switch to a different route depending on
the setup.  The codec driver sets this field so that it can handle the
errors or applying quirks appropriately.  Furthermore, this mechanism
will be used for smooth transition for the regmap support in later
patches.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      05852448
    • T
      ALSA: hda - Add widget sysfs tree · 3256be65
      由 Takashi Iwai 提交于 
      This patch changes the sysfs files assigned to the codec device on the
bus which were formerly identical with hwdep sysfs files.  Now it
shows only a few core parameter, vendor_id, subsystem_id, revision_id,
afg, mfg, vendor_name and chip_name.

In addition, now a widget tree is added to the bus device sysfs
directory for showing the widget topology and attributes.  It's just a
flat tree consisting of subdirectories named as the widget NID
including various attributes like widget capability bits.  The AFG
(usually NID 0x01) is always found there, and it contains always
amp_in_caps, amp_out_caps and power_caps files.  Each of these
attributes show a single value.  The rest are the widget nodes
belonging to that AFG.  Note that the child node might not start from
0x02 but from another value like 0x0a.

Each child node may contain caps, pin_caps, amp_in_caps, amp_out_caps,
power_caps and connections files.  The caps (representing the widget
capability bits) always contain a value.  The rest may contain
value(s) if the attribute exists on the node.  Only connections file
show multiple values while other attributes have zero or one single
value.

An example of ls -R output is like below:
% ls -R /sys/bus/hdaudio/devices/hdaudioC0D0/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/:
01/  04/  07/  0a/  0d/  10/  13/  16/  19/  1c/  1f/  22/
02/  05/  08/  0b/  0e/  11/  14/  17/  1a/  1d/  20/  23/
03/  06/  09/  0c/  0f/  12/  15/  18/  1b/  1e/  21/

/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/01:
amp_in_caps  amp_out_caps  power_caps

/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/02:
amp_in_caps  amp_out_caps  caps  connections  pin_caps  pin_cfg
power_caps

/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/03:
.....
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      3256be65
    • T
      ALSA: hda - Move a part of hda_codec stuff into hdac_device · 7639a06c
      由 Takashi Iwai 提交于 
      Now some codes and functionalities of hda_codec struct are moved to
hdac_device struct.  A few basic attributes like the codec address,
vendor ID number, FG numbers, etc are moved to hdac_device, and they
are accessed like codec->core.addr.  The basic verb exec functions are
moved, too.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      7639a06c
    • T
      ALSA: hda - Move some codes up to hdac_bus struct · d068ebc2
      由 Takashi Iwai 提交于 
      A few basic codes for communicating over HD-audio bus are moved to
struct hdac_bus now.  It has only command and get_response ops in
addition to the unsolicited event handling.

Note that the codec-side tracing support is disabled temporarily
during this transition due to the code shuffling.  It will be
re-enabled later once when all pieces are settled down.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      d068ebc2
    • T
      ALSA: hda - Make snd_hda_bus_type public · e3d280fc
      由 Takashi Iwai 提交于 
      Define the common hd-audio driver and device types to bind over
snd_hda_bus_type publicly.  This allows to implement other type of
device and driver code over hd-audio bus.

Now both struct hda_codec and struct hda_codec_driver inherit these
new struct hdac_device and struct hdac_driver, respectively.

The bus registration is done in subsys_initcall() to assure it
before any other driver registrations.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      e3d280fc
  3. 21 3月, 2015 2 次提交
  5. 19 3月, 2015 1 次提交
  7. 18 3月, 2015 10 次提交
  9. 16 3月, 2015 1 次提交
    • T
      ALSA: hda - Treat stereo-to-mono mix properly · cc261738
      由 Takashi Iwai 提交于 
      The commit [ef403edb: ALSA: hda - Don't access stereo amps for
mono channel widgets] fixed the handling of mono widgets in general,
but it still misses an exceptional case: namely, a mono mixer widget
taking a single stereo input.  In this case, it has stereo volumes
although it's a mono widget, and thus we have to take care of both
left and right input channels, as stated in HD-audio spec ("7.1.3
Widget Interconnection Rules").

This patch covers this missing piece by adding proper checks of stereo
amps in both the generic parser and the proc output codes.
Reported-by: NRaymond Yau <superquad.vortex2@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      cc261738
  11. 13 3月, 2015 5 次提交
  13. 12 3月, 2015 4 次提交
    • D
      ALSA: snd-usb: add quirks for Roland UA-22 · fcdcd1de
      由 Daniel Mack 提交于 
      The device complies to the UAC1 standard but hides that fact with
proprietary descriptors. The autodetect quirk for Roland devices
catches the audio interface but misses the MIDI part, so a specific
quirk is needed.
Signed-off-by: NDaniel Mack <daniel@zonque.org>
Reported-by: NRafa Lafuente <rafalafuente@gmail.com>
Tested-by: NRaphaël Doursenaud <raphael@doursenaud.fr>
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      fcdcd1de
    • T
      ALSA: control: Add sanity checks for user ctl id name string · be3bb823
      由 Takashi Iwai 提交于 
      There was no check about the id string of user control elements, so we
accepted even a control element with an empty string, which is
obviously bogus.  This patch adds more sanity checks of id strings.

Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      be3bb823
    • S
      ASoC: kirkwood: fix struct clk pointer comparing · aaa6d062
      由 Shawn Guo 提交于 
      Since commit 035a61c3 ("clk: Make clk API return per-user struct clk
instances"), clk API users can no longer check if two struct clk
pointers are pointing to the same hardware clock, i.e. struct clk_hw, by
simply comparing two pointers.  That's because with the per-user clk
change, a brand new struct clk is created whenever clients try to look
up the clock by calling clk_get() or sister functions like clk_get_sys()
and of_clk_get().  This changes the original behavior where the struct
clk is only created for once when clock driver registers the clock to
CCF in the first place.  The net change here is before commit
035a61c3 the struct clk pointer is unique for given hardware
clock, while after the commit the pointers returned by clk lookup calls
become different for the same hardware clock.

That said, the struct clk pointer comparing in the code doesn't work any
more.  Call helper function clk_is_match() instead to fix the problem.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
      aaa6d062
    • S
      ASoC: fsl_spdif: fix struct clk pointer comparing · 81efec85
      由 Shawn Guo 提交于 
      Since commit 035a61c3 ("clk: Make clk API return per-user struct clk
instances"), clk API users can no longer check if two struct clk
pointers are pointing to the same hardware clock, i.e. struct clk_hw, by
simply comparing two pointers.  That's because with the per-user clk
change, a brand new struct clk is created whenever clients try to look
up the clock by calling clk_get() or sister functions like clk_get_sys()
and of_clk_get().  This changes the original behavior where the struct
clk is only created for once when clock driver registers the clock to
CCF in the first place.  The net change here is before commit
035a61c3 the struct clk pointer is unique for given hardware
clock, while after the commit the pointers returned by clk lookup calls
become different for the same hardware clock.

That said, the struct clk pointer comparing in the code doesn't work any
more.  Call helper function clk_is_match() instead to fix the problem.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
      81efec85
  15. 11 3月, 2015 5 次提交