kernel/linux.git/sound/drivers/dummy.c, branch v6.7

ALSA: dummy: Convert to generic PCM copy ops

2023-08-18T10:18:17+00:00

This patch converts the dummy driver code to use the new unified PCM copy callback. As dummy driver doesn't do anything in the callback, it's just a simple replacement. Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20230815190136.8987-5-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: dummy: Add customizable volume min/max.

2022-09-12T07:52:10+00:00

Add module parameters to support customized min/max volume leveling, which will be useful to test devices with different volume granularity. Signed-off-by: YJ Lee Link: https://lore.kernel.org/r/20220912072945.760949-1-yunjunlee@chromium.org Signed-off-by: Takashi Iwai

ALSA: dummy: Fix trailing whitespaces.

2022-09-12T07:46:22+00:00

Fix checkpatch.pl ERROR: trailing whitespaces. Signed-off-by: YJ Lee Link: https://lore.kernel.org/r/20220912072854.760824-1-yunjunlee@chromium.org Signed-off-by: Takashi Iwai

ALSA: dummy: Allocate resources with device-managed APIs

2021-07-19T14:17:32+00:00

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/20210715075941.23332-79-tiwai@suse.de Signed-off-by: Takashi Iwai

module: remove never implemented MODULE_SUPPORTED_DEVICE

2021-03-17T20:16:18+00:00

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 Signed-off-by: Linus Torvalds

ALSA: dummy: Use DIV_ROUND_UP() instead of open-coding it

2020-12-25T08:11:50+00:00

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. // @@ expression x, y; @@ -(((x) + (y) - 1) / (y)) +DIV_ROUND_UP(x, y) // Signed-off-by: Lars-Peter Clausen Link: https://lore.kernel.org/r/20201223172229.781-7-lars@metafoo.de Signed-off-by: Takashi Iwai

ALSA: dummy: Use standard macros for fixing PCM format cast

2020-02-10T07:27:31+00:00

Simplify the code with the new macros for PCM format type iterations. This fixes the sparse warnings nicely: sound/drivers/dummy.c:906:25: warning: restricted snd_pcm_format_t degrades to integer sound/drivers/dummy.c:908:25: warning: incorrect type in argument 1 (different base types) sound/drivers/dummy.c:908:25: expected restricted snd_pcm_format_t [usertype] format sound/drivers/dummy.c:908:25: got int [assigned] i No functional changes, just sparse warning fixes. Link: https://lore.kernel.org/r/20200206163945.6797-5-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: dummy: Fix PCM format loop in proc output

2020-02-01T08:06:33+00:00

The loop termination for iterating over all formats should contain SNDRV_PCM_FORMAT_LAST, not less than it. Fixes: 9b151fec139d ("ALSA: dummy - Add debug proc file") Cc: Link: https://lore.kernel.org/r/20200201080530.22390-3-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: dummy: More constifications

2020-01-05T15:14:28+00:00

Apply const prefix to every possible place: mostly for declaring the dummy hardware models. Just for minor optimization and no functional changes. Link: https://lore.kernel.org/r/20200105144823.29547-5-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: dummy: Constify snd_pcm_ops definitions

2020-01-03T08:24:36+00:00

The snd_pcm_ops items defined in snd-dummy driver can be gracefully declared as const. Let's mark them for further optimization. There should be no functional changes by this patch. Link: https://lore.kernel.org/r/20200103081714.9560-44-tiwai@suse.de Signed-off-by: Takashi Iwai