ALSA: pcm: Introduce copy_user, copy_kernel and fill_silence ops

[mirror_ubuntu-bionic-kernel.git] / include / sound / pcm.h

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 79fedf517070dfbaca99b0dcd3037eb212a05f45..86b126be49a27ca081d811b58a1108b32ec0bed1 100644 (file)
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -83,6 +83,13 @@ struct snd_pcm_ops {
                    void __user *buf, snd_pcm_uframes_t count);
        int (*silence)(struct snd_pcm_substream *substream, int channel, 
                       snd_pcm_uframes_t pos, snd_pcm_uframes_t count);
+       int (*fill_silence)(struct snd_pcm_substream *substream, int channel,
+                           unsigned long pos, unsigned long bytes);
+       int (*copy_user)(struct snd_pcm_substream *substream, int channel,
+                        unsigned long pos, void __user *buf,
+                        unsigned long bytes);
+       int (*copy_kernel)(struct snd_pcm_substream *substream, int channel,
+                          unsigned long pos, void *buf, unsigned long bytes);
        struct page *(*page)(struct snd_pcm_substream *substream,
                             unsigned long offset);
        int (*mmap)(struct snd_pcm_substream *substream, struct vm_area_struct *vma);