ALSA: move snd_pcm_ioctl_sync_ptr_compat into pcm_native.c

This is a preparation patch, moving the compat handler for
snd_pcm_ioctl_sync_ptr_compat from pcm_compat.c to pcm_native.c.
No other changes are indented.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
index 2671658442ea04751357db4a5f123c278dfe8b01..6a2e5ea145e66115e1c8a6438c6ba2c435a6026f 100644 (file)
--- a/sound/core/pcm_compat.c
+++ b/sound/core/pcm_compat.c
@@ -83,19 +83,6 @@ struct snd_pcm_sw_params32 {
        unsigned char reserved[56];
 };
 
-/* recalcuate the boundary within 32bit */
-static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime)
-{
-       snd_pcm_uframes_t boundary;
-
-       if (! runtime->buffer_size)
-               return 0;
-       boundary = runtime->buffer_size;
-       while (boundary * 2 <= 0x7fffffffUL - runtime->buffer_size)
-               boundary *= 2;
-       return boundary;
-}
-
 static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream,
                                          struct snd_pcm_sw_params32 __user *src)
 {
@@ -388,91 +375,6 @@ static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream,
        return err;
 }
 
-
-struct snd_pcm_mmap_status32 {
-       s32 state;
-       s32 pad1;
-       u32 hw_ptr;
-       struct compat_timespec tstamp;
-       s32 suspended_state;
-       struct compat_timespec audio_tstamp;
-} __attribute__((packed));
-
-struct snd_pcm_mmap_control32 {
-       u32 appl_ptr;
-       u32 avail_min;
-};
-
-struct snd_pcm_sync_ptr32 {
-       u32 flags;
-       union {
-               struct snd_pcm_mmap_status32 status;
-               unsigned char reserved[64];
-       } s;
-       union {
-               struct snd_pcm_mmap_control32 control;
-               unsigned char reserved[64];
-       } c;
-} __attribute__((packed));
-
-static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
-                                        struct snd_pcm_sync_ptr32 __user *src)
-{
-       struct snd_pcm_runtime *runtime = substream->runtime;
-       volatile struct snd_pcm_mmap_status *status;
-       volatile struct snd_pcm_mmap_control *control;
-       u32 sflags;
-       struct snd_pcm_mmap_control scontrol;
-       struct snd_pcm_mmap_status sstatus;
-       snd_pcm_uframes_t boundary;
-       int err;
-
-       if (snd_BUG_ON(!runtime))
-               return -EINVAL;
-
-       if (get_user(sflags, &src->flags) ||
-           get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
-           get_user(scontrol.avail_min, &src->c.control.avail_min))
-               return -EFAULT;
-       if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
-               err = snd_pcm_hwsync(substream);
-               if (err < 0)
-                       return err;
-       }
-       status = runtime->status;
-       control = runtime->control;
-       boundary = recalculate_boundary(runtime);
-       if (! boundary)
-               boundary = 0x7fffffff;
-       snd_pcm_stream_lock_irq(substream);
-       /* FIXME: we should consider the boundary for the sync from app */
-       if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
-               control->appl_ptr = scontrol.appl_ptr;
-       else
-               scontrol.appl_ptr = control->appl_ptr % boundary;
-       if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
-               control->avail_min = scontrol.avail_min;
-       else
-               scontrol.avail_min = control->avail_min;
-       sstatus.state = status->state;
-       sstatus.hw_ptr = status->hw_ptr % boundary;
-       sstatus.tstamp = status->tstamp;
-       sstatus.suspended_state = status->suspended_state;
-       sstatus.audio_tstamp = status->audio_tstamp;
-       snd_pcm_stream_unlock_irq(substream);
-       if (put_user(sstatus.state, &src->s.status.state) ||
-           put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
-           compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
-           put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
-           compat_put_timespec(&sstatus.audio_tstamp,
-                   &src->s.status.audio_tstamp) ||
-           put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
-           put_user(scontrol.avail_min, &src->c.control.avail_min))
-               return -EFAULT;
-
-       return 0;
-}
-
 #ifdef CONFIG_X86_X32
 /* X32 ABI has 64bit timespec and 64bit alignment */
 struct snd_pcm_mmap_status_x32 {

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index ad4cf1e3e3bd479ca83323007eb81de1b92c88c9..ba0636a2b437798b82a09270c1d1a54141bff991 100644 (file)
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -4,6 +4,7 @@
  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  */
 
+#include <linux/compat.h>
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/file.h>
@@ -2888,6 +2889,105 @@ static int snd_pcm_sync_ptr(struct snd_pcm_substream *substream,
        return 0;
 }
 
+#ifdef CONFIG_COMPAT
+struct snd_pcm_mmap_status32 {
+       s32 state;
+       s32 pad1;
+       u32 hw_ptr;
+       struct compat_timespec tstamp;
+       s32 suspended_state;
+       struct compat_timespec audio_tstamp;
+} __attribute__((packed));
+
+struct snd_pcm_mmap_control32 {
+       u32 appl_ptr;
+       u32 avail_min;
+};
+
+struct snd_pcm_sync_ptr32 {
+       u32 flags;
+       union {
+               struct snd_pcm_mmap_status32 status;
+               unsigned char reserved[64];
+       } s;
+       union {
+               struct snd_pcm_mmap_control32 control;
+               unsigned char reserved[64];
+       } c;
+} __attribute__((packed));
+
+/* recalcuate the boundary within 32bit */
+static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime)
+{
+       snd_pcm_uframes_t boundary;
+
+       if (! runtime->buffer_size)
+               return 0;
+       boundary = runtime->buffer_size;
+       while (boundary * 2 <= 0x7fffffffUL - runtime->buffer_size)
+               boundary *= 2;
+       return boundary;
+}
+
+static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
+                                        struct snd_pcm_sync_ptr32 __user *src)
+{
+       struct snd_pcm_runtime *runtime = substream->runtime;
+       volatile struct snd_pcm_mmap_status *status;
+       volatile struct snd_pcm_mmap_control *control;
+       u32 sflags;
+       struct snd_pcm_mmap_control scontrol;
+       struct snd_pcm_mmap_status sstatus;
+       snd_pcm_uframes_t boundary;
+       int err;
+
+       if (snd_BUG_ON(!runtime))
+               return -EINVAL;
+
+       if (get_user(sflags, &src->flags) ||
+           get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
+           get_user(scontrol.avail_min, &src->c.control.avail_min))
+               return -EFAULT;
+       if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
+               err = snd_pcm_hwsync(substream);
+               if (err < 0)
+                       return err;
+       }
+       status = runtime->status;
+       control = runtime->control;
+       boundary = recalculate_boundary(runtime);
+       if (! boundary)
+               boundary = 0x7fffffff;
+       snd_pcm_stream_lock_irq(substream);
+       /* FIXME: we should consider the boundary for the sync from app */
+       if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
+               control->appl_ptr = scontrol.appl_ptr;
+       else
+               scontrol.appl_ptr = control->appl_ptr % boundary;
+       if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
+               control->avail_min = scontrol.avail_min;
+       else
+               scontrol.avail_min = control->avail_min;
+       sstatus.state = status->state;
+       sstatus.hw_ptr = status->hw_ptr % boundary;
+       sstatus.tstamp = status->tstamp;
+       sstatus.suspended_state = status->suspended_state;
+       sstatus.audio_tstamp = status->audio_tstamp;
+       snd_pcm_stream_unlock_irq(substream);
+       if (put_user(sstatus.state, &src->s.status.state) ||
+           put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
+           compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
+           put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
+           compat_put_timespec(&sstatus.audio_tstamp,
+                               &src->s.status.audio_tstamp) ||
+           put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
+           put_user(scontrol.avail_min, &src->c.control.avail_min))
+               return -EFAULT;
+
+       return 0;
+}
+#endif
+
 static int snd_pcm_tstamp(struct snd_pcm_substream *substream, int __user *_arg)
 {
        struct snd_pcm_runtime *runtime = substream->runtime;