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>
This commit is contained in:
Arnd Bergmann
Родитель
07094ae6f9
Коммит
09d94175db
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@ -83,19 +83,6 @@ struct snd_pcm_sw_params32 {
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unsigned char reserved[56];
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};
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/* recalcuate the boundary within 32bit */
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static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime)
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{
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snd_pcm_uframes_t boundary;
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if (! runtime->buffer_size)
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return 0;
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boundary = runtime->buffer_size;
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while (boundary * 2 <= 0x7fffffffUL - runtime->buffer_size)
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boundary *= 2;
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return boundary;
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}
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static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream,
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struct snd_pcm_sw_params32 __user *src)
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{
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@ -388,91 +375,6 @@ static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream,
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return err;
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}
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struct snd_pcm_mmap_status32 {
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s32 state;
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s32 pad1;
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u32 hw_ptr;
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struct compat_timespec tstamp;
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s32 suspended_state;
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struct compat_timespec audio_tstamp;
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} __attribute__((packed));
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struct snd_pcm_mmap_control32 {
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u32 appl_ptr;
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u32 avail_min;
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};
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struct snd_pcm_sync_ptr32 {
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u32 flags;
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union {
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struct snd_pcm_mmap_status32 status;
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unsigned char reserved[64];
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} s;
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union {
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struct snd_pcm_mmap_control32 control;
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unsigned char reserved[64];
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} c;
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} __attribute__((packed));
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static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
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struct snd_pcm_sync_ptr32 __user *src)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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volatile struct snd_pcm_mmap_status *status;
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volatile struct snd_pcm_mmap_control *control;
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u32 sflags;
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struct snd_pcm_mmap_control scontrol;
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struct snd_pcm_mmap_status sstatus;
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snd_pcm_uframes_t boundary;
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int err;
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if (snd_BUG_ON(!runtime))
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return -EINVAL;
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if (get_user(sflags, &src->flags) ||
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get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
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get_user(scontrol.avail_min, &src->c.control.avail_min))
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return -EFAULT;
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if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
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err = snd_pcm_hwsync(substream);
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if (err < 0)
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return err;
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}
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status = runtime->status;
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control = runtime->control;
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boundary = recalculate_boundary(runtime);
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if (! boundary)
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boundary = 0x7fffffff;
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snd_pcm_stream_lock_irq(substream);
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/* FIXME: we should consider the boundary for the sync from app */
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if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
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control->appl_ptr = scontrol.appl_ptr;
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else
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scontrol.appl_ptr = control->appl_ptr % boundary;
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if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
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control->avail_min = scontrol.avail_min;
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else
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scontrol.avail_min = control->avail_min;
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sstatus.state = status->state;
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sstatus.hw_ptr = status->hw_ptr % boundary;
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sstatus.tstamp = status->tstamp;
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sstatus.suspended_state = status->suspended_state;
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sstatus.audio_tstamp = status->audio_tstamp;
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snd_pcm_stream_unlock_irq(substream);
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if (put_user(sstatus.state, &src->s.status.state) ||
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put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
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compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
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put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
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compat_put_timespec(&sstatus.audio_tstamp,
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&src->s.status.audio_tstamp) ||
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put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
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put_user(scontrol.avail_min, &src->c.control.avail_min))
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return -EFAULT;
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return 0;
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}
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#ifdef CONFIG_X86_X32
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/* X32 ABI has 64bit timespec and 64bit alignment */
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struct snd_pcm_mmap_status_x32 {
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@ -4,6 +4,7 @@
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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*/
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#include <linux/compat.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/file.h>
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@ -2888,6 +2889,105 @@ static int snd_pcm_sync_ptr(struct snd_pcm_substream *substream,
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return 0;
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}
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#ifdef CONFIG_COMPAT
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struct snd_pcm_mmap_status32 {
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s32 state;
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s32 pad1;
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u32 hw_ptr;
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struct compat_timespec tstamp;
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s32 suspended_state;
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struct compat_timespec audio_tstamp;
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} __attribute__((packed));
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struct snd_pcm_mmap_control32 {
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u32 appl_ptr;
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u32 avail_min;
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};
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struct snd_pcm_sync_ptr32 {
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u32 flags;
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union {
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struct snd_pcm_mmap_status32 status;
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unsigned char reserved[64];
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} s;
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union {
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struct snd_pcm_mmap_control32 control;
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unsigned char reserved[64];
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} c;
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} __attribute__((packed));
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/* recalcuate the boundary within 32bit */
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static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime)
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{
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snd_pcm_uframes_t boundary;
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if (! runtime->buffer_size)
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return 0;
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boundary = runtime->buffer_size;
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while (boundary * 2 <= 0x7fffffffUL - runtime->buffer_size)
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boundary *= 2;
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return boundary;
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}
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static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
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struct snd_pcm_sync_ptr32 __user *src)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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volatile struct snd_pcm_mmap_status *status;
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volatile struct snd_pcm_mmap_control *control;
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u32 sflags;
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struct snd_pcm_mmap_control scontrol;
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struct snd_pcm_mmap_status sstatus;
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snd_pcm_uframes_t boundary;
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int err;
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if (snd_BUG_ON(!runtime))
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return -EINVAL;
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if (get_user(sflags, &src->flags) ||
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get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
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get_user(scontrol.avail_min, &src->c.control.avail_min))
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return -EFAULT;
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if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
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err = snd_pcm_hwsync(substream);
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if (err < 0)
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return err;
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}
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status = runtime->status;
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control = runtime->control;
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boundary = recalculate_boundary(runtime);
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if (! boundary)
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boundary = 0x7fffffff;
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snd_pcm_stream_lock_irq(substream);
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/* FIXME: we should consider the boundary for the sync from app */
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if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
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control->appl_ptr = scontrol.appl_ptr;
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else
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scontrol.appl_ptr = control->appl_ptr % boundary;
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if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
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control->avail_min = scontrol.avail_min;
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else
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scontrol.avail_min = control->avail_min;
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sstatus.state = status->state;
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sstatus.hw_ptr = status->hw_ptr % boundary;
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sstatus.tstamp = status->tstamp;
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sstatus.suspended_state = status->suspended_state;
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sstatus.audio_tstamp = status->audio_tstamp;
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snd_pcm_stream_unlock_irq(substream);
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if (put_user(sstatus.state, &src->s.status.state) ||
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put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
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compat_put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
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put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
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compat_put_timespec(&sstatus.audio_tstamp,
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&src->s.status.audio_tstamp) ||
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put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
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put_user(scontrol.avail_min, &src->c.control.avail_min))
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return -EFAULT;
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return 0;
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}
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#endif
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static int snd_pcm_tstamp(struct snd_pcm_substream *substream, int __user *_arg)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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