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rawmidi: Add UMP ioctl support

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Just implement internal callbacks for two new ioctls for UMP
(ump_endpoint_info and ump_block_info).  No public API functions are
added yet here.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2022-11-29 15:24:31 +01:00
parent a034b84705
commit 6627953de0
3 changed files with 49 additions and 1 deletions
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26
src/rawmidi/rawmidi_hw.c
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@ -272,6 +272,28 @@ static ssize_t snd_rawmidi_hw_tread(snd_rawmidi_t *rmidi, struct timespec *tstam
return ret + result;
}
static int snd_rawmidi_hw_ump_endpoint_info(snd_rawmidi_t *rmidi, void *buf)
{
snd_rawmidi_hw_t *hw = rmidi->private_data;
if (rmidi->version < SNDRV_PROTOCOL_VERSION(2, 0, 3))
return -ENXIO;
if (ioctl(hw->fd, SNDRV_UMP_IOCTL_ENDPOINT_INFO, buf) < 0)
return -errno;
return 0;
}
static int snd_rawmidi_hw_ump_block_info(snd_rawmidi_t *rmidi, void *buf)
{
snd_rawmidi_hw_t *hw = rmidi->private_data;
if (rmidi->version < SNDRV_PROTOCOL_VERSION(2, 0, 3))
return -ENXIO;
if (ioctl(hw->fd, SNDRV_UMP_IOCTL_BLOCK_INFO, buf) < 0)
return -errno;
return 0;
}
static const snd_rawmidi_ops_t snd_rawmidi_hw_ops = {
.close = snd_rawmidi_hw_close,
.nonblock = snd_rawmidi_hw_nonblock,
@ -282,7 +304,9 @@ static const snd_rawmidi_ops_t snd_rawmidi_hw_ops = {
.drain = snd_rawmidi_hw_drain,
.write = snd_rawmidi_hw_write,
.read = snd_rawmidi_hw_read,
.tread = snd_rawmidi_hw_tread
.tread = snd_rawmidi_hw_tread,
.ump_endpoint_info = snd_rawmidi_hw_ump_endpoint_info,
.ump_block_info = snd_rawmidi_hw_ump_block_info,
};