A new callback, ioctl, is added to snd_rawmidi_global_ops for allowing the driver to deal with the own ioctls. This is another preparation patch for the upcoming UMP support.
Reviewed-by: Jaroslav Kysela perex@perex.cz Signed-off-by: Takashi Iwai tiwai@suse.de --- include/sound/rawmidi.h | 2 ++ sound/core/rawmidi.c | 7 +++++-- 2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/include/sound/rawmidi.h b/include/sound/rawmidi.h index 52b1cbfb2526..84413cfcdcb5 100644 --- a/include/sound/rawmidi.h +++ b/include/sound/rawmidi.h @@ -47,6 +47,8 @@ struct snd_rawmidi_global_ops { int (*dev_unregister) (struct snd_rawmidi * rmidi); void (*get_port_info)(struct snd_rawmidi *rmidi, int number, struct snd_seq_port_info *info); + long (*ioctl)(struct snd_rawmidi *rmidi, unsigned int cmd, + void __user *argp); };
struct snd_rawmidi_runtime { diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c index 589b75087d27..ab28cfc1fac8 100644 --- a/sound/core/rawmidi.c +++ b/sound/core/rawmidi.c @@ -893,6 +893,7 @@ static int snd_rawmidi_ioctl_status64(struct snd_rawmidi_file *rfile, static long snd_rawmidi_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct snd_rawmidi_file *rfile; + struct snd_rawmidi *rmidi; void __user *argp = (void __user *)arg;
rfile = file->private_data; @@ -984,8 +985,10 @@ static long snd_rawmidi_ioctl(struct file *file, unsigned int cmd, unsigned long } } default: - rmidi_dbg(rfile->rmidi, - "rawmidi: unknown command = 0x%x\n", cmd); + rmidi = rfile->rmidi; + if (rmidi->ops && rmidi->ops->ioctl) + return rmidi->ops->ioctl(rmidi, cmd, argp); + rmidi_dbg(rmidi, "rawmidi: unknown command = 0x%x\n", cmd); } return -ENOTTY; }