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Diffstat (limited to 'sound/core/pcm_compat.c')
-rw-r--r--sound/core/pcm_compat.c282
1 files changed, 70 insertions, 212 deletions
diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
index 6f9003b1869a..967c689fb8da 100644
--- 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)
{
@@ -168,10 +155,13 @@ static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream,
snd_pcm_channel_info_user(s, p)
#endif /* CONFIG_X86_X32 */
-struct snd_pcm_status32 {
+struct compat_snd_pcm_status64 {
s32 state;
- struct compat_timespec trigger_tstamp;
- struct compat_timespec tstamp;
+ u8 rsvd[4]; /* alignment */
+ s64 trigger_tstamp_sec;
+ s64 trigger_tstamp_nsec;
+ s64 tstamp_sec;
+ s64 tstamp_nsec;
u32 appl_ptr;
u32 hw_ptr;
s32 delay;
@@ -180,85 +170,24 @@ struct snd_pcm_status32 {
u32 overrange;
s32 suspended_state;
u32 audio_tstamp_data;
- struct compat_timespec audio_tstamp;
- struct compat_timespec driver_tstamp;
+ s64 audio_tstamp_sec;
+ s64 audio_tstamp_nsec;
+ s64 driver_tstamp_sec;
+ s64 driver_tstamp_nsec;
u32 audio_tstamp_accuracy;
- unsigned char reserved[52-2*sizeof(struct compat_timespec)];
-} __attribute__((packed));
-
-
-static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream,
- struct snd_pcm_status32 __user *src,
- bool ext)
-{
- struct snd_pcm_status status;
- int err;
-
- memset(&status, 0, sizeof(status));
- /*
- * with extension, parameters are read/write,
- * get audio_tstamp_data from user,
- * ignore rest of status structure
- */
- if (ext && get_user(status.audio_tstamp_data,
- (u32 __user *)(&src->audio_tstamp_data)))
- return -EFAULT;
- err = snd_pcm_status(substream, &status);
- if (err < 0)
- return err;
-
- if (clear_user(src, sizeof(*src)))
- return -EFAULT;
- if (put_user(status.state, &src->state) ||
- compat_put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) ||
- compat_put_timespec(&status.tstamp, &src->tstamp) ||
- put_user(status.appl_ptr, &src->appl_ptr) ||
- put_user(status.hw_ptr, &src->hw_ptr) ||
- put_user(status.delay, &src->delay) ||
- put_user(status.avail, &src->avail) ||
- put_user(status.avail_max, &src->avail_max) ||
- put_user(status.overrange, &src->overrange) ||
- put_user(status.suspended_state, &src->suspended_state) ||
- put_user(status.audio_tstamp_data, &src->audio_tstamp_data) ||
- compat_put_timespec(&status.audio_tstamp, &src->audio_tstamp) ||
- compat_put_timespec(&status.driver_tstamp, &src->driver_tstamp) ||
- put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy))
- return -EFAULT;
-
- return err;
-}
-
-#ifdef CONFIG_X86_X32
-/* X32 ABI has 64bit timespec and 64bit alignment */
-struct snd_pcm_status_x32 {
- s32 state;
- u32 rsvd; /* alignment */
- struct timespec trigger_tstamp;
- struct timespec tstamp;
- u32 appl_ptr;
- u32 hw_ptr;
- s32 delay;
- u32 avail;
- u32 avail_max;
- u32 overrange;
- s32 suspended_state;
- u32 audio_tstamp_data;
- struct timespec audio_tstamp;
- struct timespec driver_tstamp;
- u32 audio_tstamp_accuracy;
- unsigned char reserved[52-2*sizeof(struct timespec)];
+ unsigned char reserved[52-4*sizeof(s64)];
} __packed;
-#define put_timespec(src, dst) copy_to_user(dst, src, sizeof(*dst))
-
-static int snd_pcm_status_user_x32(struct snd_pcm_substream *substream,
- struct snd_pcm_status_x32 __user *src,
- bool ext)
+static int snd_pcm_status_user_compat64(struct snd_pcm_substream *substream,
+ struct compat_snd_pcm_status64 __user *src,
+ bool ext)
{
- struct snd_pcm_status status;
+ struct snd_pcm_status64 status;
+ struct compat_snd_pcm_status64 compat_status64;
int err;
memset(&status, 0, sizeof(status));
+ memset(&compat_status64, 0, sizeof(compat_status64));
/*
* with extension, parameters are read/write,
* get audio_tstamp_data from user,
@@ -267,31 +196,39 @@ static int snd_pcm_status_user_x32(struct snd_pcm_substream *substream,
if (ext && get_user(status.audio_tstamp_data,
(u32 __user *)(&src->audio_tstamp_data)))
return -EFAULT;
- err = snd_pcm_status(substream, &status);
+ err = snd_pcm_status64(substream, &status);
if (err < 0)
return err;
if (clear_user(src, sizeof(*src)))
return -EFAULT;
- if (put_user(status.state, &src->state) ||
- put_timespec(&status.trigger_tstamp, &src->trigger_tstamp) ||
- put_timespec(&status.tstamp, &src->tstamp) ||
- put_user(status.appl_ptr, &src->appl_ptr) ||
- put_user(status.hw_ptr, &src->hw_ptr) ||
- put_user(status.delay, &src->delay) ||
- put_user(status.avail, &src->avail) ||
- put_user(status.avail_max, &src->avail_max) ||
- put_user(status.overrange, &src->overrange) ||
- put_user(status.suspended_state, &src->suspended_state) ||
- put_user(status.audio_tstamp_data, &src->audio_tstamp_data) ||
- put_timespec(&status.audio_tstamp, &src->audio_tstamp) ||
- put_timespec(&status.driver_tstamp, &src->driver_tstamp) ||
- put_user(status.audio_tstamp_accuracy, &src->audio_tstamp_accuracy))
+
+ compat_status64 = (struct compat_snd_pcm_status64) {
+ .state = status.state,
+ .trigger_tstamp_sec = status.trigger_tstamp_sec,
+ .trigger_tstamp_nsec = status.trigger_tstamp_nsec,
+ .tstamp_sec = status.tstamp_sec,
+ .tstamp_nsec = status.tstamp_nsec,
+ .appl_ptr = status.appl_ptr,
+ .hw_ptr = status.hw_ptr,
+ .delay = status.delay,
+ .avail = status.avail,
+ .avail_max = status.avail_max,
+ .overrange = status.overrange,
+ .suspended_state = status.suspended_state,
+ .audio_tstamp_data = status.audio_tstamp_data,
+ .audio_tstamp_sec = status.audio_tstamp_sec,
+ .audio_tstamp_nsec = status.audio_tstamp_nsec,
+ .driver_tstamp_sec = status.audio_tstamp_sec,
+ .driver_tstamp_nsec = status.audio_tstamp_nsec,
+ .audio_tstamp_accuracy = status.audio_tstamp_accuracy,
+ };
+
+ if (copy_to_user(src, &compat_status64, sizeof(compat_status64)))
return -EFAULT;
return err;
}
-#endif /* CONFIG_X86_X32 */
/* both for HW_PARAMS and HW_REFINE */
static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream,
@@ -436,91 +373,6 @@ 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 {
@@ -528,10 +380,12 @@ struct snd_pcm_mmap_status_x32 {
s32 pad1;
u32 hw_ptr;
u32 pad2; /* alignment */
- struct timespec tstamp;
+ s64 tstamp_sec;
+ s64 tstamp_nsec;
s32 suspended_state;
s32 pad3;
- struct timespec audio_tstamp;
+ s64 audio_tstamp_sec;
+ s64 audio_tstamp_nsec;
} __packed;
struct snd_pcm_mmap_control_x32 {
@@ -599,9 +453,11 @@ static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream,
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) ||
- put_timespec(&sstatus.tstamp, &src->s.status.tstamp) ||
+ put_user(sstatus.tstamp.tv_sec, &src->s.status.tstamp_sec) ||
+ put_user(sstatus.tstamp.tv_nsec, &src->s.status.tstamp_nsec) ||
put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
- put_timespec(&sstatus.audio_tstamp, &src->s.status.audio_tstamp) ||
+ put_user(sstatus.audio_tstamp.tv_sec, &src->s.status.audio_tstamp_sec) ||
+ put_user(sstatus.audio_tstamp.tv_nsec, &src->s.status.audio_tstamp_nsec) ||
put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
put_user(scontrol.avail_min, &src->c.control.avail_min))
return -EFAULT;
@@ -616,8 +472,8 @@ enum {
SNDRV_PCM_IOCTL_HW_REFINE32 = _IOWR('A', 0x10, struct snd_pcm_hw_params32),
SNDRV_PCM_IOCTL_HW_PARAMS32 = _IOWR('A', 0x11, struct snd_pcm_hw_params32),
SNDRV_PCM_IOCTL_SW_PARAMS32 = _IOWR('A', 0x13, struct snd_pcm_sw_params32),
- SNDRV_PCM_IOCTL_STATUS32 = _IOR('A', 0x20, struct snd_pcm_status32),
- SNDRV_PCM_IOCTL_STATUS_EXT32 = _IOWR('A', 0x24, struct snd_pcm_status32),
+ SNDRV_PCM_IOCTL_STATUS_COMPAT32 = _IOR('A', 0x20, struct snd_pcm_status32),
+ SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32 = _IOWR('A', 0x24, struct snd_pcm_status32),
SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32),
SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct snd_pcm_channel_info32),
SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32),
@@ -626,11 +482,10 @@ enum {
SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct snd_xferi32),
SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct snd_xfern32),
SNDRV_PCM_IOCTL_READN_FRAMES32 = _IOR('A', 0x53, struct snd_xfern32),
- SNDRV_PCM_IOCTL_SYNC_PTR32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr32),
+ SNDRV_PCM_IOCTL_STATUS_COMPAT64 = _IOR('A', 0x20, struct compat_snd_pcm_status64),
+ SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64 = _IOWR('A', 0x24, struct compat_snd_pcm_status64),
#ifdef CONFIG_X86_X32
SNDRV_PCM_IOCTL_CHANNEL_INFO_X32 = _IOR('A', 0x32, struct snd_pcm_channel_info),
- SNDRV_PCM_IOCTL_STATUS_X32 = _IOR('A', 0x20, struct snd_pcm_status_x32),
- SNDRV_PCM_IOCTL_STATUS_EXT_X32 = _IOWR('A', 0x24, struct snd_pcm_status_x32),
SNDRV_PCM_IOCTL_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32),
#endif /* CONFIG_X86_X32 */
};
@@ -650,8 +505,8 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l
/*
* When PCM is used on 32bit mode, we need to disable
- * mmap of PCM status/control records because of the size
- * incompatibility.
+ * mmap of the old PCM status/control records because
+ * of the size incompatibility.
*/
pcm_file->no_compat_mmap = 1;
@@ -673,6 +528,13 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l
case SNDRV_PCM_IOCTL_XRUN:
case SNDRV_PCM_IOCTL_LINK:
case SNDRV_PCM_IOCTL_UNLINK:
+ case __SNDRV_PCM_IOCTL_SYNC_PTR32:
+ return snd_pcm_common_ioctl(file, substream, cmd, argp);
+ case __SNDRV_PCM_IOCTL_SYNC_PTR64:
+#ifdef CONFIG_X86_X32
+ if (in_x32_syscall())
+ return snd_pcm_ioctl_sync_ptr_x32(substream, argp);
+#endif /* CONFIG_X86_X32 */
return snd_pcm_common_ioctl(file, substream, cmd, argp);
case SNDRV_PCM_IOCTL_HW_REFINE32:
return snd_pcm_ioctl_hw_params_compat(substream, 1, argp);
@@ -680,12 +542,10 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l
return snd_pcm_ioctl_hw_params_compat(substream, 0, argp);
case SNDRV_PCM_IOCTL_SW_PARAMS32:
return snd_pcm_ioctl_sw_params_compat(substream, argp);
- case SNDRV_PCM_IOCTL_STATUS32:
- return snd_pcm_status_user_compat(substream, argp, false);
- case SNDRV_PCM_IOCTL_STATUS_EXT32:
- return snd_pcm_status_user_compat(substream, argp, true);
- case SNDRV_PCM_IOCTL_SYNC_PTR32:
- return snd_pcm_ioctl_sync_ptr_compat(substream, argp);
+ case SNDRV_PCM_IOCTL_STATUS_COMPAT32:
+ return snd_pcm_status_user32(substream, argp, false);
+ case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT32:
+ return snd_pcm_status_user32(substream, argp, true);
case SNDRV_PCM_IOCTL_CHANNEL_INFO32:
return snd_pcm_ioctl_channel_info_compat(substream, argp);
case SNDRV_PCM_IOCTL_WRITEI_FRAMES32:
@@ -702,13 +562,11 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l
return snd_pcm_ioctl_rewind_compat(substream, argp);
case SNDRV_PCM_IOCTL_FORWARD32:
return snd_pcm_ioctl_forward_compat(substream, argp);
+ case SNDRV_PCM_IOCTL_STATUS_COMPAT64:
+ return snd_pcm_status_user_compat64(substream, argp, false);
+ case SNDRV_PCM_IOCTL_STATUS_EXT_COMPAT64:
+ return snd_pcm_status_user_compat64(substream, argp, true);
#ifdef CONFIG_X86_X32
- case SNDRV_PCM_IOCTL_STATUS_X32:
- return snd_pcm_status_user_x32(substream, argp, false);
- case SNDRV_PCM_IOCTL_STATUS_EXT_X32:
- return snd_pcm_status_user_x32(substream, argp, true);
- case SNDRV_PCM_IOCTL_SYNC_PTR_X32:
- return snd_pcm_ioctl_sync_ptr_x32(substream, argp);
case SNDRV_PCM_IOCTL_CHANNEL_INFO_X32:
return snd_pcm_ioctl_channel_info_x32(substream, argp);
#endif /* CONFIG_X86_X32 */