From: Takashi Iwai Date: Tue, 23 May 2023 07:53:23 +0000 (+0200) Subject: ALSA: rawmidi: Add ioctl callback to snd_rawmidi_global_ops X-Git-Tag: v6.5-rc1~21^2~2^2~56 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=fb3bd1215909866d6105224abe1566fd52695859;p=tomoyo%2Ftomoyo-test1.git ALSA: rawmidi: Add ioctl callback to snd_rawmidi_global_ops 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 Link: https://lore.kernel.org/r/20230523075358.9672-3-tiwai@suse.de Signed-off-by: Takashi Iwai --- 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; }