Граф коммитов

480965 Коммитов

Автор SHA1 Сообщение Дата
Eliot Blennerhassett 3872f19d96 ALSA: asihpi: New I/O types - AVB & BLUlink, DAB Rf receiver
Audio cards wth have AVB or BLU Link IO.
Tuner card with DAB receiver

Signed-off-by: Eliot Blennerhassett <eliot@blennerhassett.gen.nz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-22 22:25:51 +01:00
Eliot Blennerhassett e9886ab06c ALSA: asihpi: Minor string and dead code cleanup
Signed-off-by: Eliot Blennerhassett <eliot@blennerhassett.gen.nz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-22 22:25:02 +01:00
Dan Carpenter 4fc390a198 sound: oss: uart401: remove unneeded NULL check
"devc" can't be NULL here so there is no need to check.  Also I removed
the "devc = NULL" assignment because devc is stored on stack so it's
a no-op.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-22 21:48:33 +01:00
Markus Elfring 966b7bc935 ALSA: sb: Deletion of unnecessary checks before two function calls
The functions release_and_free_resource() and snd_util_memhdr_free() test
whether their argument is NULL and then return immediately.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-21 20:07:36 +01:00
Markus Elfring 42d7721012 ALSA: es1688_lib: Deletion of an unnecessary check before the function call "release_and_free_resource"
The release_and_free_resource() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-21 20:07:13 +01:00
Markus Elfring d712eaf29d ALSA: core: Deletion of unnecessary checks before two function calls
The functions snd_seq_oss_timer_delete() and vunmap() perform also input
parameter validation. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-21 20:06:57 +01:00
Kailang Yang eaa8e5ef18 ALSA: hda/realtek - Supported HP mute Led for ALC286
New HP machine supported output mute led and input mute led.
ALC286:
GPIO1 to control output mute led.
GPIO5 to control input mute led.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-21 10:56:52 +01:00
Takashi Iwai 0f32fd1900 ALSA: hda/realtek - Clean up mute/mic GPIO LED handling
There are a few duplicated codes handling the mute and mic-mute LEDs
via GPIO pins.  Let's consolidate to single helpers.  Here we
introduced two new fields to alc_spec, gpio_mute_led_mask and
gpio_mic_led_mask, to contain the bit mask to set/clear.  Also,
mute_led_polarity is evaluated as well.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-20 11:02:18 +01:00
Takashi Sakamoto 5f217f905b ALSA: firewire-lib: fix kerneldoc errors
Complete missing parameters, correct wrong reference, and add an explaination
about the differences between the latest specification and our implementation.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-18 18:10:23 +01:00
Markus Elfring 1ea7a568c6 ALSA: powermac: Deletion of an unnecessary check before the function call "pci_dev_put"
The pci_dev_put() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-17 13:52:45 +01:00
Markus Elfring c283661018 ALSA: hdsp: Deletion of an unnecessary check before the function call "release_firmware"
The release_firmware() function tests whether its argument is NULL and then
return immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-17 13:46:46 +01:00
Markus Elfring 6da95e1ea8 ALSA: lola: Deletion of an unnecessary check before the function call "vfree"
The vfree() function performs also input parameter validation. Thus the test
around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-17 13:46:23 +01:00
Markus Elfring ae1b22658e ALSA: ice17xx: Deletion of unnecessary checks before the function call "snd_ac97_resume"
The snd_ac97_resume() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-17 13:45:51 +01:00
Markus Elfring f0acd28c87 ALSA: hda: Deletion of unnecessary checks before two function calls
The functions kfree() and release_firmware() test whether their argument
is NULL and then return immediately. Thus the test around the call
is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-17 13:45:23 +01:00
Sudip Mukherjee b8eca77e54 ALSA: ice1712: consider error value
earlier we were ignoring the return value of snd_ak4114_create and
always returning 0.
now we are returning the actual status. revo_init is calling this
function, and revo_init is checking the return value.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-14 14:16:47 +01:00
Sudip Mukherjee b393df0145 ALSA: ice1712: remove unused variable
buf_size was initialized with snd_pcm_lib_buffer_bytes,
but never used. and so it is safe to be deleted.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-14 14:16:43 +01:00
Sudip Mukherjee 387417b562 ALSA: ice1712: remove unneeded return statement
the functions:
        snd_ice1712_akm4xxx_build_controls
        snd_ice1712_build_pro_mixer
        snd_ctl_add
        snd_ak4114_build
        prodigy192_ak4114_init
        snd_ak4113_build
are all returning either 0 or a negetive error value.
so we can easily remove the check for a negative value and return
the value instead.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-14 14:16:36 +01:00
Joe Perches 9547c0999e ALSA: 6fire: Convert byte_rev_table uses to bitrev8
Use the inline function instead of directly indexing the array.

This allows some architectures with hardware instructions
for bit reversals to eliminate the array.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-14 08:01:53 +01:00
Chris J Arges 76b188c4b3 ALSA: usb-audio: Scarlett mixer interface for 6i6, 18i6, 18i8 and 18i20
This code contains the Scarlett mixer interface code that was originally
written by Tobias Hoffman and Robin Gareus. Because the device doesn't
properly implement UAC2 this code adds a mixer quirk for the device.

Changes from the original code include removing the metering code along with
dead code and comments. Compiler warnings were fixed. The code to initialize
the sampling rate was causing a crash this was fixed as discussed on the
mailing list. Error, and info messages were convered to dev_err and dev_info
interfaces. The custom scarlett_mixer_elem_info struct was replaced with the
more generic usb_mixer_elem_info to be able to recycle more code from mixer.c.

This patch also makes additional modifications based on upstream comments.
Individual control creation functions are removed and a generic
function is no used. Macros for function calls are removed to improve
readability. Hardcoded control initialization is removed. Save to HW
functionality has been removed. Strings for enums are created dynamically for
the mixer. Strings used for controls are now SNDRV_CTL_ELEM_ID_NAME_MAXLEN
length.

Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-13 07:32:39 +01:00
Chris J Arges eef9045160 ALSA: usb-audio: make set_*_mix_values functions public
Make the functions set_cur_mix_value and get_cur_mix_value accessible by files
that include mixer.h. In addition make usb_mixer_elem_free accessible.
This allows reuse of these functions by mixers that may require quirks.

The following summarizes the renamed functions:
  - set_cur_mix_value -> snd_usb_set_cur_mix_value
  - get_cur_mix_value -> snd_usb_get_cur_mix_value
  - usb_mixer_elem_free -> snd_usb_mixer_elem_free

Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-13 07:32:02 +01:00
Chris J Arges f41d6049d1 ALSA: usb-audio: Add private_data pointer to usb_mixer_elem_info
Add a private_data pointer to usb_mixer_elem_info to allow other mixer
implementations to extend the structure as necessary.

Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-13 07:31:52 +01:00
Chris J Arges ef9566a3a1 Revert "ALSA: usb-audio: Add quirk for Focusrite Scarlett
This reverts commit 1762a59d8e.

This quirk is not needed because support for the Scarlett mixers will be added.

Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-13 07:31:41 +01:00
Damien Zammit c63fcb9b67 ALSA: usb-audio: Add duplex mode for Digidesign Mbox 1 and enable mixer
This patch provides duplex support for the Digidesign Mbox 1 sound
card and has been a work in progress for about a year.
Users have confirmed on my website that previous versions of this patch
have worked on the hardware and I have been testing extensively.

It also enables the mixer control for providing clock source
selector based on the previous patch.
The sample rate has been hardcoded to 48kHz because it works better with
the S/PDIF sync mode when the sample rate is locked.  This is the
highest rate that the device supports and no loss of functionality
is observed by restricting the sample rate apart from the inability to selec
a lower rate.

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-11 15:13:00 +01:00
Damien Zammit d497a82fb1 ALSA: usb-audio: Add mixer control for Digidesign Mbox 1 clock source
This patch provides the infrastructure for the Digidesign Mbox 1
to have a mixer control for selecting the clock source.
Valid options are Internal and S/PDIF external sync.
A non-documented command is sent to the device to enable this feature
found by reverse engineering and bus snooping.

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-11 15:12:35 +01:00
Takashi Iwai ddcecf6b6a ALSA: Fix invalid kerneldoc markers
They are no real kerneldoc comments, so drop such markers.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-11 09:39:17 +01:00
Takashi Iwai 3f60c87d12 ALSA: mixart: Fix kerneldoc comments
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-11 09:39:13 +01:00
Takashi Iwai e60b2c7fcd ALSA: hda - Fix kerneldoc errors in patch_ca0132.c
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-11 09:39:11 +01:00
Takashi Iwai 2a9e8df009 ALSA: vx: Fix missing kerneldoc parameter descriptions
The file isn't processed, but it's not bad to fix beforehand.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-11 09:39:10 +01:00
Takashi Iwai 85a8181329 ALSA: usb-audio: Fix Oops by composite quirk enhancement
The quirk argument itself was used as iterator, so it cannot be taken
back to the original value, obviously.

Fixes: d4b8fc66f7 ('ALSA: usb-audio: Allow multiple entries for the same iface in composite quirk')
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-10 07:44:47 +01:00
Takashi Iwai 48b217aa43 ALSA: pcm: Fix document for snd_pcm_stop_xrun()
Fix a copy & paste error:
 Warning(sound/core/pcm_native.c:1112): Excess function parameter 'state' description in 'snd_pcm_stop_xrun'

The state argument was dropped from snd_pcm_stop_xrun().

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-10 07:38:22 +01:00
Takashi Iwai d4b8fc66f7 ALSA: usb-audio: Allow multiple entries for the same iface in composite quirk
Currently the composite quirk doesn't work when multiple entries are
assigned to the same interface because it marks the interface as
claimed then checks whether the interface has been already claimed for
the secondary entry.  But, if you look at the code, you'll notice that
multiple entries are allowed if the entry is the current interface;
i.e. the current behavior is anyway inconsistent, and this is an
unintended shortcoming.

This patch fixes the problem by marking the relevant interfaces as
claimed after applying the all composite entries.  This fix will be
needed for the upcoming enhancements for Digidesign Mbox 1 quirks.

Reviewed-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-09 18:21:23 +01:00
Takashi Iwai 1fb8510cdb ALSA: pcm: Add snd_pcm_stop_xrun() helper
Add a new helper function snd_pcm_stop_xrun() to the standard sequnce
lock/snd_pcm_stop(XRUN)/unlock by a single call, and replace the
existing open codes with this helper.

The function checks the PCM running state to prevent setting the wrong
state, too, for more safety.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-09 18:20:40 +01:00
Lars-Peter Clausen 31584ed18c ALSA: snd_ctl_activate_id(): Fix index look-up
We want to know the offset for the id that was passed to the function, not
the offset of the first id of the control (which is always 0).

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-07 14:25:07 +01:00
Takashi Iwai 67e225009b ALSA: usb-audio: Trigger PCM XRUN at XRUN
The usb-audio driver detects XRUN at its complete callback, but the
actual code to trigger PCM XRUN is commented out because it caused
deadlock in the past.  This patch revives the PCM trigger properly.
It resulted in more than just enabling snd_pcm_stop(), but it had to
deduce the PCM substream with proper NULL checks and holds the stream
lock around the call.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-06 13:04:49 +01:00
Takashi Iwai 9bc889b4ba ALSA: pcm: Update the state properly before notification
Some state changes (e.g. snd_pcm_stop()) sets the runtime state after
calling snd_timer_notify().  This is basically racy, since the
notification may wakes up the user even before the state change.
Although the possibility is low, we should set the state before the
notifications.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-06 12:17:29 +01:00
Takashi Iwai 19566b0bd9 Merge branch 'for-linus' into for-next
This merges the USB-audio disconnect fix and resolves the conflicts
so that we can continue working on development of usb-audio stuff.

Conflicts:
	sound/usb/card.c
2014-11-05 15:37:22 +01:00
Takashi Iwai 0725dda207 ALSA: usb-audio: Fix device_del() sysfs warnings at disconnect
Some USB-audio devices show weird sysfs warnings at disconnecting the
devices, e.g.
 usb 1-3: USB disconnect, device number 3
 ------------[ cut here ]------------
 WARNING: CPU: 0 PID: 973 at fs/sysfs/group.c:216 device_del+0x39/0x180()
 sysfs group ffffffff8183df40 not found for kobject 'midiC1D0'
 Call Trace:
  [<ffffffff814a3e38>] ? dump_stack+0x49/0x71
  [<ffffffff8103cb72>] ? warn_slowpath_common+0x82/0xb0
  [<ffffffff8103cc55>] ? warn_slowpath_fmt+0x45/0x50
  [<ffffffff813521e9>] ? device_del+0x39/0x180
  [<ffffffff81352339>] ? device_unregister+0x9/0x20
  [<ffffffff81352384>] ? device_destroy+0x34/0x40
  [<ffffffffa00ba29f>] ? snd_unregister_device+0x7f/0xd0 [snd]
  [<ffffffffa025124e>] ? snd_rawmidi_dev_disconnect+0xce/0x100 [snd_rawmidi]
  [<ffffffffa00c0192>] ? snd_device_disconnect+0x62/0x90 [snd]
  [<ffffffffa00c025c>] ? snd_device_disconnect_all+0x3c/0x60 [snd]
  [<ffffffffa00bb574>] ? snd_card_disconnect+0x124/0x1a0 [snd]
  [<ffffffffa02e54e8>] ? usb_audio_disconnect+0x88/0x1c0 [snd_usb_audio]
  [<ffffffffa015260e>] ? usb_unbind_interface+0x5e/0x1b0 [usbcore]
  [<ffffffff813553e9>] ? __device_release_driver+0x79/0xf0
  [<ffffffff81355485>] ? device_release_driver+0x25/0x40
  [<ffffffff81354e11>] ? bus_remove_device+0xf1/0x130
  [<ffffffff813522b9>] ? device_del+0x109/0x180
  [<ffffffffa01501d5>] ? usb_disable_device+0x95/0x1f0 [usbcore]
  [<ffffffffa014634f>] ? usb_disconnect+0x8f/0x190 [usbcore]
  [<ffffffffa0149179>] ? hub_thread+0x539/0x13a0 [usbcore]
  [<ffffffff810669f5>] ? sched_clock_local+0x15/0x80
  [<ffffffff81066c98>] ? sched_clock_cpu+0xb8/0xd0
  [<ffffffff81070730>] ? bit_waitqueue+0xb0/0xb0
  [<ffffffffa0148c40>] ? usb_port_resume+0x430/0x430 [usbcore]
  [<ffffffffa0148c40>] ? usb_port_resume+0x430/0x430 [usbcore]
  [<ffffffff8105973e>] ? kthread+0xce/0xf0
  [<ffffffff81059670>] ? kthread_create_on_node+0x1c0/0x1c0
  [<ffffffff814a8b7c>] ? ret_from_fork+0x7c/0xb0
  [<ffffffff81059670>] ? kthread_create_on_node+0x1c0/0x1c0
 ---[ end trace 40b1928d1136b91e ]---

This comes from the fact that usb-audio driver may receive the
disconnect callback multiple times, per each usb interface.  When a
device has both audio and midi interfaces, it gets called twice, and
currently the driver tries to release resources at the last call.
At this point, the first parent interface has been already deleted,
thus deleting a child of the first parent hits such a warning.

For fixing this problem, we need to call snd_card_disconnect() and
cancel pending operations at the very first disconnect while the
release of the whole objects waits until the last disconnect call.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80931
Reported-and-tested-by: Tomas Gayoso <tgayoso@gmail.com>
Reported-and-tested-by: Chris J Arges <chris.j.arges@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-05 15:36:25 +01:00
Sudip Mukherjee 9161bd0d1c ALSA: echoaudio: cleanup of unnecessary messages
commit "b5b4a41b392960010fccf1f9ccf8334d612bd450" was dereferencing
chip after it has been freed. This patch fixes that and at the same
time removes some debugging messages, which are unnecessary, as they
are just printing information about entry and exit from a function,
and which switch-case it is executing.
we can easily get from ftrace the information about the entry and exit
from a function.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-05 15:35:57 +01:00
Takashi Iwai c009b7ef94 Merge branch 'topic/pcm-locking' into for-next
here is a small series of patches for cleaning up / enhancing the
PCM core stuff.
2014-11-05 11:34:36 +01:00
Hui Wang c922c4e87b ALSA: hda - fix mute led problem for three HP laptops
Without the fix, the mute led can't work on these three machines.

After apply this fix, these three machines will fall back on the led
control quirk as below, and through testing, the mute led works very
well.
PIN_QUIRK(0x10ec0282, 0x103c, "HP", ALC269_FIXUP_HP_LINE1_MIC1_LED,
            ALC282_STANDARD_PINS,
            {0x12, 0x90a60140},
            ...

BugLink: https://bugs.launchpad.net/bugs/1389497
Tested-by: TieFu Chen <tienfu.chen@canonical.com>
Cc: Kailang Yang <kailang@realtek.com>
Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-05 07:42:15 +01:00
Takashi Iwai ae366c2049 ALSA: usb-audio: Use strim() instead of open code
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-04 15:09:13 +01:00
Takashi Iwai a6cece9d81 ALSA: usb-audio: Pass direct struct pointer instead of list_head
Some functions in mixer.c and endpoint.c receive list_head instead of
the object itself.  This is not obvious and rather error-prone.  Let's
pass the proper object directly instead.

The functions in midi.c still receive list_head and this can't be
changed since the object definition isn't exposed to the outside of
midi.c, so left as is.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-04 15:09:10 +01:00
Takashi Iwai 4c8c3a4fcc ALSA: usb-audio: Flatten probe and disconnect functions
The usb-audio probe and disconnect functions have been split just for
adapting the (new!) API at 2.5 kernel time.  We left them until now,
partly because we wanted to build with the pretty old kernels in the
external alsa-driver tree.  But the support of such old kernels has
been longly stopped, so it's good time to clean up this mess.

One good point by this cleanup is that now the probe function returns
a proper error code instead of only -EIO.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-04 15:09:08 +01:00
Takashi Iwai 2b30d411db ALSA: pcm: Add xrun_injection proc entry
This patch adds a new proc entry for PCM substreams to inject an
XRUN.  When a PCM substream is running and any value is written to its
xrun_injection proc file, the driver triggers XRUN.  This is a useful
feature for debugging XRUN and error handling code paths.

Note that this entry is enabled only when CONFIG_SND_PCM_XRUN_DEBUG is
set.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-04 14:09:16 +01:00
Takashi Iwai f5914908a5 ALSA: pcm: Replace PCM hwptr tracking with tracepoints
ALSA PCM core has a mechanism tracking the PCM hwptr updates for
analyzing XRUNs.  But its log is limited (up to 10) and its log output
is a kernel message, which is hard to handle.

In this patch, the hwptr logging is moved to the tracing
infrastructure instead of its own.  Not only the hwptr updates but
also XRUN and hwptr errors are recorded on the trace log, so that user
can see such events at the exact timing.

The new "snd_pcm" entry will appear in the tracing events:
  # ls -F /sys/kernel/debug/tracing/events/snd_pcm
  enable  filter  hw_ptr_error/  hwptr/  xrun/

The hwptr is for the regular hwptr update events.  An event trace
looks like:

  aplay-26187 [004] d..3  4012.834761: hwptr: pcmC0D0p/sub0: POS: pos=488, old=0, base=0, period=1024, buf=16384

"POS" shows the hwptr update by the explicit position update call and
"IRQ" means the hwptr update by the interrupt,
i.e. snd_pcm_period_elapsed() call.  The "pos" is the passed
ring-buffer offset by the caller, "old" is the previous hwptr, "base"
is the hwptr base position, "period" and "buf" are period- and
buffer-size of the target PCM substream.
(Note that the hwptr position displayed here isn't the ring-buffer
 offset.  It increments up to the PCM position boundary.)

The XRUN event appears similarly, but without "pos" field.
The hwptr error events appear with the PCM identifier and its reason
string, such as "Lost interrupt?".

The XRUN and hwptr error reports on kernel message are still left, can
be turned on/off via xrun_debug proc like before.  But the bit 3, 4, 5
and 6 bits of xrun_debug proc are dropped by this patch.  Also, along
with the change, the message strings have been reformatted to be a bit
more consistent.

Last but not least, the hwptr reporting is enabled only when
CONFIG_SND_PCM_XRUN_DEBUG is set.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-04 14:09:14 +01:00
Takashi Iwai d507941beb ALSA: pcm: Correct PCM BUG error message
While converting to dev_*(), the message showing the invalid PCM
position was wrongly tagged as if an XRUN although it's actually a
BUG.  This patch corrects the message again.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-04 14:09:12 +01:00
Ondrej Zary 2603fe21b7 ALSA: es18xx: Add GPO controls
Add GPO0 and GPO1 (General Purpose Outputs) controls to mixer.
These can be used on some cards to control amplifier mute (seen in ES1868
datasheet) or additional onboard chips such as QX2130 QXpander processor.

These GPOs are present on ES1868, ES1869, ES1887 and ES1888 chips.

Tested on ES1868 with QX2130.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-04 10:31:30 +01:00
Markus Elfring 31604d35db ALSA: emu10k1: Deletion of unnecessary checks before three function calls
The functions kfree(), release_firmware() and snd_util_memhdr_free() test
whether their argument is NULL and then return immediately. Thus the test
around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-03 15:16:14 +01:00
Sudip Mukherjee b5b4a41b39 ALSA: echoaudio: remove all snd_printk
removed all references of snd_printk with the standard dev_* macro.

[a few places degraded to dev_dbg(), too -- tiwai]

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-03 14:07:25 +01:00
Sudip Mukherjee e369086968 ALSA: echoaudio: add reference of struct echoaudio
added reference of struct echoaudio to free_firmware function.
this structure will be later used to get a reference of the card
when converting snd_printk to dev_* in the next patch of the series.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-03 14:02:33 +01:00