diff options
| author | Joris Verhaegen <verhaegen@google.com> | 2025-09-05 10:12:56 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2025-09-08 09:33:24 +0200 |
| commit | 86eec88c5bddf9a57bfebe701d9c7a4d439aed9b (patch) | |
| tree | 8f86d1d86f41955c282e437176c4843d975b74cf /include/uapi | |
| parent | f20a53974f79619d0ef6c9f17bb8693499fb6ebb (diff) | |
ALSA: compress_offload: Add SNDRV_COMPRESS_AVAIL64 ioctl
The previous patch introduced a 64-bit timestamp ioctl
(SNDRV_COMPRESS_TSTAMP64). To provide a consistent API, this patch
adds a corresponding 64-bit version of the SNDRV_COMPRESS_AVAIL ioctl.
A new struct snd_compr_avail64 is added to the UAPI, which includes
the 64-bit timestamp. The existing ioctl implementation is refactored
to handle both the 32-bit and 64-bit variants.
Reviewed-by: Miller Liang <millerliang@google.com>
Tested-by: Joris Verhaegen <verhaegen@google.com>
Signed-off-by: Joris Verhaegen <verhaegen@google.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250905091301.2711705-4-verhaegen@google.com
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/sound/compress_offload.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/uapi/sound/compress_offload.h b/include/uapi/sound/compress_offload.h index 70b8921601f9..26f756cc2e62 100644 --- a/include/uapi/sound/compress_offload.h +++ b/include/uapi/sound/compress_offload.h @@ -84,6 +84,16 @@ struct snd_compr_avail { struct snd_compr_tstamp tstamp; } __attribute__((packed, aligned(4))); +/** + * struct snd_compr_avail64 - avail descriptor with tstamp in 64 bit format + * @avail: Number of bytes available in ring buffer for writing/reading + * @tstamp: timestamp information + */ +struct snd_compr_avail64 { + __u64 avail; + struct snd_compr_tstamp64 tstamp; +} __attribute__((packed, aligned(4))); + enum snd_compr_direction { SND_COMPRESS_PLAYBACK = 0, SND_COMPRESS_CAPTURE, @@ -231,6 +241,7 @@ struct snd_compr_task_status { #define SNDRV_COMPRESS_TSTAMP _IOR('C', 0x20, struct snd_compr_tstamp) #define SNDRV_COMPRESS_AVAIL _IOR('C', 0x21, struct snd_compr_avail) #define SNDRV_COMPRESS_TSTAMP64 _IOR('C', 0x22, struct snd_compr_tstamp64) +#define SNDRV_COMPRESS_AVAIL64 _IOR('C', 0x23, struct snd_compr_avail64) #define SNDRV_COMPRESS_PAUSE _IO('C', 0x30) #define SNDRV_COMPRESS_RESUME _IO('C', 0x31) #define SNDRV_COMPRESS_START _IO('C', 0x32) |