Revision tags: v6.6.25, v6.6.24, v6.6.23, v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3, v6.5.2, v6.1.51, v6.5.1, v6.1.50, v6.5, v6.1.49, v6.1.48, v6.1.46, v6.1.45, v6.1.44, v6.1.43, v6.1.42, v6.1.41, v6.1.40, v6.1.39, v6.1.38, v6.1.37, v6.1.36, v6.4, v6.1.35, v6.1.34, v6.1.33, v6.1.32, v6.1.31, v6.1.30, v6.1.29, v6.1.28, v6.1.27, v6.1.26, v6.3, v6.1.25, v6.1.24, v6.1.23, v6.1.22, v6.1.21, v6.1.20, v6.1.19, v6.1.18, v6.1.17, v6.1.16, v6.1.15, v6.1.14, v6.1.13, v6.2, v6.1.12, v6.1.11, v6.1.10, v6.1.9, v6.1.8, v6.1.7, v6.1.6, v6.1.5, v6.0.19, v6.0.18, v6.1.4, v6.1.3, v6.0.17, v6.1.2, v6.0.16, v6.1.1, v6.0.15, v6.0.14, v6.0.13, v6.1, v6.0.12, v6.0.11, v6.0.10, v5.15.80, v6.0.9, v5.15.79, v6.0.8, v5.15.78, v6.0.7, v5.15.77, v5.15.76, v6.0.6, v6.0.5, v5.15.75, v6.0.4, v6.0.3, v6.0.2, v5.15.74, v5.15.73, v6.0.1, v5.15.72, v6.0, v5.15.71 |
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#
f7efa9b8 |
| 26-Sep-2022 |
Takashi Iwai <tiwai@suse.de> |
ALSA: aloop: Replace runtime->status->state reference to runtime->state
The recent change in ALSA core allows drivers to get the current PCM state directly from runtime object. Replace the calls ac
ALSA: aloop: Replace runtime->status->state reference to runtime->state
The recent change in ALSA core allows drivers to get the current PCM state directly from runtime object. Replace the calls accordingly.
Reviewed-by: Jaroslav Kysela <perex@perex.cz> Link: https://lore.kernel.org/r/20220926135558.26580-4-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Revision tags: v5.15.70, v5.15.69, v5.15.68, v5.15.67, v5.15.66, v5.15.65 |
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#
3e48940a |
| 01-Sep-2022 |
Pattara Teerapong <pteerapong@chromium.org> |
ALSA: aloop: Fix random zeros in capture data when using jiffies timer
In loopback_jiffies_timer_pos_update(), we are getting jiffies twice. First time for playback, second time for capture. Jiffies
ALSA: aloop: Fix random zeros in capture data when using jiffies timer
In loopback_jiffies_timer_pos_update(), we are getting jiffies twice. First time for playback, second time for capture. Jiffies can be updated between these two calls and if the capture jiffies is larger, extra zeros will be filled in the capture buffer.
Change to get jiffies once and use it for both playback and capture.
Signed-off-by: Pattara Teerapong <pteerapong@chromium.org> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20220901144036.4049060-1-pteerapong@chromium.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
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#
d1118465 |
| 01-Sep-2022 |
Pattara Teerapong <pteerapong@chromium.org> |
ALSA: aloop: Fix random zeros in capture data when using jiffies timer
commit 3e48940abee88b8dbbeeaf8a07e7b2b6be1271b3 upstream.
In loopback_jiffies_timer_pos_update(), we are getting jiffies twice
ALSA: aloop: Fix random zeros in capture data when using jiffies timer
commit 3e48940abee88b8dbbeeaf8a07e7b2b6be1271b3 upstream.
In loopback_jiffies_timer_pos_update(), we are getting jiffies twice. First time for playback, second time for capture. Jiffies can be updated between these two calls and if the capture jiffies is larger, extra zeros will be filled in the capture buffer.
Change to get jiffies once and use it for both playback and capture.
Signed-off-by: Pattara Teerapong <pteerapong@chromium.org> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20220901144036.4049060-1-pteerapong@chromium.org Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Revision tags: v5.15.64, v5.15.63, v5.15.62, v5.15.61, v5.15.60, v5.15.59, v5.19, v5.15.58, v5.15.57, v5.15.56, v5.15.55, v5.15.54, v5.15.53, v5.15.52, v5.15.51, v5.15.50, v5.15.49, v5.15.48, v5.15.47, v5.15.46, v5.15.45, v5.15.44, v5.15.43, v5.15.42, v5.18, v5.15.41, v5.15.40, v5.15.39, v5.15.38, v5.15.37, v5.15.36, v5.15.35, v5.15.34, v5.15.33, v5.15.32, v5.15.31, v5.17, v5.15.30, v5.15.29, v5.15.28, v5.15.27, v5.15.26, v5.15.25, v5.15.24, v5.15.23, v5.15.22, v5.15.21, v5.15.20, v5.15.19, v5.15.18, v5.15.17, v5.4.173, v5.15.16, v5.15.15, v5.16, v5.15.10, v5.15.9, v5.15.8, v5.15.7, v5.15.6, v5.15.5, v5.15.4, v5.15.3, v5.15.2, v5.15.1, v5.15, v5.14.14, v5.14.13, v5.14.12, v5.14.11, v5.14.10, v5.14.9, v5.14.8, v5.14.7, v5.14.6, v5.10.67, v5.10.66, v5.14.5, v5.14.4, v5.10.65, v5.14.3, v5.10.64, v5.14.2, v5.10.63, v5.14.1, v5.10.62, v5.14, v5.10.61, v5.10.60, v5.10.53, v5.10.52, v5.10.51 |
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#
b072e65a |
| 15-Jul-2021 |
Takashi Iwai <tiwai@suse.de> |
ALSA: aloop: Allocate resources with device-managed APIs
Use the new snd_devm_card_new() for the card object allocation, and clean up the superfluous remove callback.
Link: https://lore.kernel.org/
ALSA: aloop: Allocate resources with device-managed APIs
Use the new snd_devm_card_new() for the card object allocation, and clean up the superfluous remove callback.
Link: https://lore.kernel.org/r/20210715075941.23332-78-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Revision tags: v5.10.50, v5.10.49, v5.13, v5.10.46, v5.10.43, v5.10.42, v5.10.41, v5.10.40, v5.10.39, v5.4.119, v5.10.36, v5.10.35, v5.10.34, v5.4.116, v5.10.33, v5.12, v5.10.32, v5.10.31, v5.10.30 |
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#
168632a4 |
| 07-Apr-2021 |
Jonas Holmberg <jonashg@axis.com> |
ALSA: aloop: Fix initialization of controls
Add a control to the card before copying the id so that the numid field is initialized in the copy. Otherwise the numid field of active_id, format_id, rat
ALSA: aloop: Fix initialization of controls
Add a control to the card before copying the id so that the numid field is initialized in the copy. Otherwise the numid field of active_id, format_id, rate_id and channels_id will be the same (0) and snd_ctl_notify() will not queue the events properly.
Signed-off-by: Jonas Holmberg <jonashg@axis.com> Reviewed-by: Jaroslav Kysela <perex@perex.cz> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210407075428.2666787-1-jonashg@axis.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Revision tags: v5.10.27, v5.10.26, v5.10.25, v5.10.24 |
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#
6417f031 |
| 17-Mar-2021 |
Leon Romanovsky <leonro@nvidia.com> |
module: remove never implemented MODULE_SUPPORTED_DEVICE
MODULE_SUPPORTED_DEVICE was added in pre-git era and never was implemented. We can safely remove it, because the kernel has grown to have man
module: remove never implemented MODULE_SUPPORTED_DEVICE
MODULE_SUPPORTED_DEVICE was added in pre-git era and never was implemented. We can safely remove it, because the kernel has grown to have many more reliable mechanisms to determine if device is supported or not.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Revision tags: v5.10.23, v5.10.22, v5.10.21, v5.10.20, v5.10.19, v5.4.101, v5.10.18, v5.10.17, v5.11, v5.10.16, v5.10.15, v5.10.14 |
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#
7ef74bdc |
| 23-Dec-2020 |
Lars-Peter Clausen <lars@metafoo.de> |
ALSA: aloop: Use DIV_ROUND_UP() instead of open-coding it
Use DIV_ROUND_UP() instead of open-coding it. This documents intent and makes it more clear what is going on for the casual reviewer.
Gener
ALSA: aloop: Use DIV_ROUND_UP() instead of open-coding it
Use DIV_ROUND_UP() instead of open-coding it. This documents intent and makes it more clear what is going on for the casual reviewer.
Generated using the following the Coccinelle semantic patch.
// <smpl> @@ expression x, y; @@ -(((x) + (y) - 1) / (y)) +DIV_ROUND_UP(x, y) // </smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Link: https://lore.kernel.org/r/20201223172229.781-2-lars@metafoo.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Revision tags: v5.10 |
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#
e714fa93 |
| 20-Nov-2020 |
Rikard Falkeborn <rikard.falkeborn@gmail.com> |
ALSA: aloop: Constify ops structs
The only usage of the ops field in the loopback_cable struct is to call its members, the field it self is never changed. Make it a pointer to const. This allows us
ALSA: aloop: Constify ops structs
The only usage of the ops field in the loopback_cable struct is to call its members, the field it self is never changed. Make it a pointer to const. This allows us to constify two static loopback_ops structs to allow the compiler to put them in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Link: https://lore.kernel.org/r/20201120231046.76758-1-rikard.falkeborn@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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#
6efe4c1f |
| 07-Apr-2021 |
Jonas Holmberg <jonashg@axis.com> |
ALSA: aloop: Fix initialization of controls
commit 168632a495f49f33a18c2d502fc249d7610375e9 upstream.
Add a control to the card before copying the id so that the numid field is initialized in the c
ALSA: aloop: Fix initialization of controls
commit 168632a495f49f33a18c2d502fc249d7610375e9 upstream.
Add a control to the card before copying the id so that the numid field is initialized in the copy. Otherwise the numid field of active_id, format_id, rate_id and channels_id will be the same (0) and snd_ctl_notify() will not queue the events properly.
Signed-off-by: Jonas Holmberg <jonashg@axis.com> Reviewed-by: Jaroslav Kysela <perex@perex.cz> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210407075428.2666787-1-jonashg@axis.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Revision tags: v5.8.17, v5.8.16, v5.8.15, v5.9, v5.8.14, v5.8.13, v5.8.12, v5.8.11, v5.8.10, v5.8.9, v5.8.8, v5.8.7 |
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#
6053a712 |
| 03-Sep-2020 |
Takashi Iwai <tiwai@suse.de> |
ALSA: aloop: Replace tasklet with work
The tasklet is an old API that should be deprecated, usually can be converted to another decent API. In aloop driver, a tasklet is still used for offloading t
ALSA: aloop: Replace tasklet with work
The tasklet is an old API that should be deprecated, usually can be converted to another decent API. In aloop driver, a tasklet is still used for offloading the timer event task. It can be achieved gracefully with a work queued, too.
This patch replaces the tasklet usage in aloop driver with a simple work.
Link: https://lore.kernel.org/r/20200903104131.21097-6-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Revision tags: v5.8.6, v5.4.62, v5.8.5, v5.8.4, v5.4.61, v5.8.3, v5.4.60, v5.8.2, v5.4.59, v5.8.1, v5.4.58, v5.4.57, v5.4.56, v5.8, v5.7.12, v5.4.55, v5.7.11, v5.4.54, v5.7.10, v5.4.53, v5.4.52, v5.7.9, v5.7.8, v5.4.51, v5.4.50, v5.7.7, v5.4.49, v5.7.6, v5.7.5, v5.4.48, v5.7.4, v5.7.3, v5.4.47, v5.4.46, v5.7.2, v5.4.45, v5.7.1, v5.4.44, v5.7, v5.4.43, v5.4.42, v5.4.41, v5.4.40, v5.4.39, v5.4.38, v5.4.37, v5.4.36, v5.4.35, v5.4.34, v5.4.33, v5.4.32, v5.4.31, v5.4.30, v5.4.29, v5.6, v5.4.28, v5.4.27, v5.4.26, v5.4.25, v5.4.24, v5.4.23, v5.4.22, v5.4.21, v5.4.20, v5.4.19 |
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#
8c356c52 |
| 06-Feb-2020 |
Takashi Iwai <tiwai@suse.de> |
ALSA: aloop: Fix PCM format assignment
Fix sparse warnings about PCM format assignment regarding the strong typed snd_pcm_format_t: sound/drivers/aloop.c:352:45: warning: restricted snd_pcm_format
ALSA: aloop: Fix PCM format assignment
Fix sparse warnings about PCM format assignment regarding the strong typed snd_pcm_format_t: sound/drivers/aloop.c:352:45: warning: restricted snd_pcm_format_t degrades to integer sound/drivers/aloop.c:355:39: warning: incorrect type in assignment (different base types) sound/drivers/aloop.c:355:39: expected unsigned int format sound/drivers/aloop.c:355:39: got restricted snd_pcm_format_t [usertype] format sound/drivers/aloop.c:1435:34: warning: incorrect type in assignment (different base types) sound/drivers/aloop.c:1435:34: expected long max sound/drivers/aloop.c:1435:34: got restricted snd_pcm_format_t [usertype] sound/drivers/aloop.c:1565:39: warning: incorrect type in assignment (different base types) sound/drivers/aloop.c:1565:39: expected unsigned int format sound/drivers/aloop.c:1565:39: got restricted snd_pcm_format_t [usertype]
Some code in this driver assigns an integer value to snd_pcm_format_t via control API, and they need to be with the explicit cast.
No functional changes, just sparse warning fixes.
Link: https://lore.kernel.org/r/20200206163945.6797-2-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Revision tags: v5.4.18, v5.4.17, v5.4.16, v5.5, v5.4.15, v5.4.14, v5.4.13, v5.4.12, v5.4.11, v5.4.10, v5.4.9, v5.4.8 |
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#
2eccd408 |
| 03-Jan-2020 |
Takashi Iwai <tiwai@suse.de> |
ALSA: drivers: Constify snd_kcontrol_new items
Most of snd_kcontrol_new definitions are read-only and passed as-is. Let's declare them as const for further optimization. Constify snd_kcontrol_new it
ALSA: drivers: Constify snd_kcontrol_new items
Most of snd_kcontrol_new definitions are read-only and passed as-is. Let's declare them as const for further optimization. Constify snd_kcontrol_new items
There should be no functional changes by this patch.
Link: https://lore.kernel.org/r/20200103081714.9560-34-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Revision tags: v5.4.7, v5.4.6, v5.4.5, v5.4.4, v5.4.3, v5.3.15, v5.4.2, v5.4.1, v5.3.14, v5.4, v5.3.13, v5.3.12, v5.3.11, v5.3.10, v5.3.9, v5.3.8, v5.3.7, v5.3.6, v5.3.5, v5.3.4, v5.3.3, v5.3.2, v5.3.1, v5.3, v5.2.14, v5.3-rc8, v5.2.13, v5.2.12, v5.2.11, v5.2.10, v5.2.9, v5.2.8, v5.2.7, v5.2.6, v5.2.5, v5.2.4, v5.2.3, v5.2.2, v5.2.1, v5.2, v5.1.16, v5.1.15, v5.1.14, v5.1.13, v5.1.12, v5.1.11, v5.1.10, v5.1.9, v5.1.8, v5.1.7, v5.1.6, v5.1.5, v5.1.4, v5.1.3, v5.1.2, v5.1.1, v5.0.14, v5.1, v5.0.13, v5.0.12, v5.0.11, v5.0.10, v5.0.9, v5.0.8, v5.0.7, v5.0.6, v5.0.5, v5.0.4, v5.0.3, v4.19.29, v5.0.2, v4.19.28, v5.0.1, v4.19.27, v5.0, v4.19.26, v4.19.25, v4.19.24, v4.19.23, v4.19.22, v4.19.21, v4.19.20, v4.19.19, v4.19.18, v4.19.17, v4.19.16, v4.19.15, v4.19.14, v4.19.13, v4.19.12, v4.19.11, v4.19.10, v4.19.9, v4.19.8, v4.19.7, v4.19.6, v4.19.5, v4.19.4, v4.18.20, v4.19.3, v4.18.19, v4.19.2, v4.18.18, v4.18.17, v4.19.1, v4.19, v4.18.16, v4.18.15, v4.18.14, v4.18.13, v4.18.12, v4.18.11, v4.18.10, v4.18.9, v4.18.7, v4.18.6, v4.18.5, v4.17.18, v4.18.4, v4.18.3, v4.17.17, v4.18.2, v4.17.16, v4.17.15, v4.18.1, v4.18, v4.17.14, v4.17.13, v4.17.12, v4.17.11, v4.17.10, v4.17.9, v4.17.8, v4.17.7, v4.17.6, v4.17.5, v4.17.4, v4.17.3, v4.17.2, v4.17.1, v4.17 |
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#
fcae40c9 |
| 24-Apr-2018 |
Baolin Wang <baolin.wang@linaro.org> |
ALSA: Replace timespec with timespec64
Since timespec is not year 2038 safe on 32bit system, and we need to convert all timespec variables to timespec64 type for sound subsystem.
This patch is used
ALSA: Replace timespec with timespec64
Since timespec is not year 2038 safe on 32bit system, and we need to convert all timespec variables to timespec64 type for sound subsystem.
This patch is used to do preparation for following patches, that will convert all structures defined in uapi/sound/asound.h to use 64-bit time_t.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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#
ae531486 |
| 10-Dec-2019 |
Takashi Iwai <tiwai@suse.de> |
ALSA: drivers: Drop superfluous ioctl PCM ops
PCM core deals the empty ioctl field now as default(*). Let's kill the redundant lines.
(*) commit fc033cbf6fb7 ("ALSA: pcm: Allow NULL ioctl ops")
Li
ALSA: drivers: Drop superfluous ioctl PCM ops
PCM core deals the empty ioctl field now as default(*). Let's kill the redundant lines.
(*) commit fc033cbf6fb7 ("ALSA: pcm: Allow NULL ioctl ops")
Link: https://lore.kernel.org/r/20191210061145.24641-5-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
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#
39729889 |
| 09-Dec-2019 |
Takashi Iwai <tiwai@suse.de> |
ALSA: aloop: Use managed buffer allocation
Clean up the driver with the new managed buffer allocation API. The hw_params callback became superfluous and got dropped.
Link: https://lore.kernel.org/r
ALSA: aloop: Use managed buffer allocation
Clean up the driver with the new managed buffer allocation API. The hw_params callback became superfluous and got dropped.
Link: https://lore.kernel.org/r/20191209094943.14984-5-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
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#
5061bb70 |
| 27-Nov-2019 |
Andrew Gabbasov <andrew_gabbasov@mentor.com> |
ALSA: aloop: Avoid pointer dereference before null-check
Static analysis tools (cppcheck and PVS Studio) report an error in loopback_snd_timer_period_elapsed() regarding dpcm_play pointer dereferenc
ALSA: aloop: Avoid pointer dereference before null-check
Static analysis tools (cppcheck and PVS Studio) report an error in loopback_snd_timer_period_elapsed() regarding dpcm_play pointer dereference earlier than its null-check. And although this is a result of a formal check, and the pointer correctness is also protected by having a corresponding bit set in the "running" mask, re-ordering of the lines can imake the code even formally correct and eliminate those static analysis error reports.
Fixes: 26c53379f98d ("ALSA: aloop: Support selection of snd_timer instead of jiffies") Reported-by: Eugeniu Rosca <erosca@de.adit-jv.com> Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Link: https://lore.kernel.org/r/20191127110622.26105-1-andrew_gabbasov@mentor.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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#
9314e44f |
| 22-Nov-2019 |
Andrew Gabbasov <andrew_gabbasov@mentor.com> |
ALSA: aloop: Avoid unexpected timer event callback tasklets
loopback_snd_timer_close_cable() function waits until all scheduled tasklets are completed, but the timer is closed after that and can gen
ALSA: aloop: Avoid unexpected timer event callback tasklets
loopback_snd_timer_close_cable() function waits until all scheduled tasklets are completed, but the timer is closed after that and can generate more event callbacks, scheduling new tasklets, that will not be synchronized with cable closing. Move tasklet_kill() call to be executed after snd_timer_close() call to avoid such case.
Fixes: 26c53379f98d ("ALSA: aloop: Support selection of snd_timer instead of jiffies") Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Link: https://lore.kernel.org/r/20191122175218.17187-2-andrew_gabbasov@mentor.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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#
c037239c |
| 22-Nov-2019 |
Andrew Gabbasov <andrew_gabbasov@mentor.com> |
ALSA: aloop: Remove redundant locking in timer open function
loopback_parse_timer_id() uses snd_card_ref(), that can lock on mutex, also snd_timer_instance_new() uses non-atomic allocation, that can
ALSA: aloop: Remove redundant locking in timer open function
loopback_parse_timer_id() uses snd_card_ref(), that can lock on mutex, also snd_timer_instance_new() uses non-atomic allocation, that can sleep. So, both functions can not be called from loopback_snd_timer_open() with cable->lock spinlock locked.
Moreover, most part of loopback_snd_timer_open() function body works when the opposite stream of the same cable does not yet exist, and the current stream is not yet completely open and can't be running, so existing locking of loopback->cable_lock mutex is enough to protect from conflicts with simultaneous opening or closing. Locking of cable->lock spinlock is not needed in this case.
Fixes: 26c53379f98d ("ALSA: aloop: Support selection of snd_timer instead of jiffies") Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Link: https://lore.kernel.org/r/20191122175218.17187-1-andrew_gabbasov@mentor.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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c6ae9960 |
| 20-Nov-2019 |
Andrew Gabbasov <andrew_gabbasov@mentor.com> |
ALSA: aloop: Support runtime change of snd_timer via info interface
Show and change sound card timer source with read-write info file in proc filesystem. Initial string can still be set as module pa
ALSA: aloop: Support runtime change of snd_timer via info interface
Show and change sound card timer source with read-write info file in proc filesystem. Initial string can still be set as module parameter.
The timer source string value can be changed at any time, but it is latched by PCM substream open callback (the first one for a particular cable). At this point it is actually used, that is the string is parsed, and the timer is looked up and opened.
The timer source is set for a loopback card (the same as initial setting by module parameter), but every cable uses the value, current at the moment of open.
Setting the value to empty string switches the timer to jiffies.
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Link: https://lore.kernel.org/r/20191120174955.6410-8-andrew_gabbasov@mentor.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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26c53379 |
| 20-Nov-2019 |
Timo Wischer <twischer@de.adit-jv.com> |
ALSA: aloop: Support selection of snd_timer instead of jiffies
to do synchronous audio forwarding between hardware sound card and aloop devices. Such an audio route could look like the following: So
ALSA: aloop: Support selection of snd_timer instead of jiffies
to do synchronous audio forwarding between hardware sound card and aloop devices. Such an audio route could look like the following: Sound card -> Loopback application -> ALSA loop device -> arecord
In this case the loopback device should use the sound timer of the sound card. Without this patch the loopback application has to implement an adaptive sample rate converter to align the different clocks of the different ALSA devices.
The used timer can be selected by referring to a sound card, its device and subdevice, when loading the module: $ modprobe snd_aloop enable=1 timer_source=[<card>[.<dev>[.<subdev>]]] <card> is the name (id) of the sound card or a card number. <dev> and <subdev> are device and subdevice numbers (defaults are 0). Empty string as a value of timer_source= parameter enables previous functionality (using jiffies timer).
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com> Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Link: https://lore.kernel.org/r/20191120174955.6410-7-andrew_gabbasov@mentor.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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fd1f7c74 |
| 20-Nov-2019 |
Timo Wischer <twischer@de.adit-jv.com> |
ALSA: aloop: Move CABLE_VALID_BOTH to the top of file
so all functions can use the same.
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com> Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor
ALSA: aloop: Move CABLE_VALID_BOTH to the top of file
so all functions can use the same.
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com> Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Link: https://lore.kernel.org/r/20191120174955.6410-6-andrew_gabbasov@mentor.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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8e3bf7cd |
| 20-Nov-2019 |
Timo Wischer <twischer@de.adit-jv.com> |
ALSA: aloop: Rename all jiffies timer specific functions
This commit does not change the behaviour. It only separates the jiffies timer specific implementation from the generic part.
Signed-off-by:
ALSA: aloop: Rename all jiffies timer specific functions
This commit does not change the behaviour. It only separates the jiffies timer specific implementation from the generic part.
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com> Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Link: https://lore.kernel.org/r/20191120174955.6410-5-andrew_gabbasov@mentor.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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133f3759 |
| 20-Nov-2019 |
Timo Wischer <twischer@de.adit-jv.com> |
ALSA: aloop: Use callback functions for timer specific implementations
This commit only refactors the implementation. It does not change the behaviour. It is required to support other timers (e.g so
ALSA: aloop: Use callback functions for timer specific implementations
This commit only refactors the implementation. It does not change the behaviour. It is required to support other timers (e.g sound timer).
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com> Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Link: https://lore.kernel.org/r/20191120174955.6410-4-andrew_gabbasov@mentor.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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09419f1a |
| 20-Nov-2019 |
Timo Wischer <twischer@de.adit-jv.com> |
ALSA: aloop: Support return of error code for timer start and stop
This is required for additional timer implementations which could detect errors and want to throw them.
Signed-off-by: Timo Wische
ALSA: aloop: Support return of error code for timer start and stop
This is required for additional timer implementations which could detect errors and want to throw them.
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com> Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Link: https://lore.kernel.org/r/20191120174955.6410-3-andrew_gabbasov@mentor.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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97dda3da |
| 20-Nov-2019 |
Timo Wischer <twischer@de.adit-jv.com> |
ALSA: aloop: Describe units of variables
Describe the unit of the variables used to calculate the hw pointer depending on jiffies ticks.
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com> Signed
ALSA: aloop: Describe units of variables
Describe the unit of the variables used to calculate the hw pointer depending on jiffies ticks.
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com> Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Link: https://lore.kernel.org/r/20191120174955.6410-2-andrew_gabbasov@mentor.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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