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- // SPDX-License-Identifier: GPL-2.0-or-later
- /*
- * 32bit -> 64bit ioctl wrapper for PCM API
- * Copyright (c) by Takashi Iwai <tiwai@suse.de>
- */
- /* This file included from pcm_native.c */
- #include <linux/compat.h>
- #include <linux/slab.h>
- static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream,
- s32 __user *src)
- {
- snd_pcm_sframes_t delay;
- int err;
- err = snd_pcm_delay(substream, &delay);
- if (err)
- return err;
- if (put_user(delay, src))
- return -EFAULT;
- return 0;
- }
- static int snd_pcm_ioctl_rewind_compat(struct snd_pcm_substream *substream,
- u32 __user *src)
- {
- snd_pcm_uframes_t frames;
- int err;
- if (get_user(frames, src))
- return -EFAULT;
- err = snd_pcm_rewind(substream, frames);
- if (put_user(err, src))
- return -EFAULT;
- return err < 0 ? err : 0;
- }
- static int snd_pcm_ioctl_forward_compat(struct snd_pcm_substream *substream,
- u32 __user *src)
- {
- snd_pcm_uframes_t frames;
- int err;
- if (get_user(frames, src))
- return -EFAULT;
- err = snd_pcm_forward(substream, frames);
- if (put_user(err, src))
- return -EFAULT;
- return err < 0 ? err : 0;
- }
- struct snd_pcm_hw_params32 {
- u32 flags;
- struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; /* this must be identical */
- struct snd_mask mres[5]; /* reserved masks */
- struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
- struct snd_interval ires[9]; /* reserved intervals */
- u32 rmask;
- u32 cmask;
- u32 info;
- u32 msbits;
- u32 rate_num;
- u32 rate_den;
- u32 fifo_size;
- unsigned char reserved[64];
- };
- struct snd_pcm_sw_params32 {
- s32 tstamp_mode;
- u32 period_step;
- u32 sleep_min;
- u32 avail_min;
- u32 xfer_align;
- u32 start_threshold;
- u32 stop_threshold;
- u32 silence_threshold;
- u32 silence_size;
- u32 boundary;
- u32 proto;
- u32 tstamp_type;
- unsigned char reserved[56];
- };
- static int snd_pcm_ioctl_sw_params_compat(struct snd_pcm_substream *substream,
- struct snd_pcm_sw_params32 __user *src)
- {
- struct snd_pcm_sw_params params;
- snd_pcm_uframes_t boundary;
- int err;
- memset(¶ms, 0, sizeof(params));
- if (get_user(params.tstamp_mode, &src->tstamp_mode) ||
- get_user(params.period_step, &src->period_step) ||
- get_user(params.sleep_min, &src->sleep_min) ||
- get_user(params.avail_min, &src->avail_min) ||
- get_user(params.xfer_align, &src->xfer_align) ||
- get_user(params.start_threshold, &src->start_threshold) ||
- get_user(params.stop_threshold, &src->stop_threshold) ||
- get_user(params.silence_threshold, &src->silence_threshold) ||
- get_user(params.silence_size, &src->silence_size) ||
- get_user(params.tstamp_type, &src->tstamp_type) ||
- get_user(params.proto, &src->proto))
- return -EFAULT;
- /*
- * Check silent_size parameter. Since we have 64bit boundary,
- * silence_size must be compared with the 32bit boundary.
- */
- boundary = recalculate_boundary(substream->runtime);
- if (boundary && params.silence_size >= boundary)
- params.silence_size = substream->runtime->boundary;
- err = snd_pcm_sw_params(substream, ¶ms);
- if (err < 0)
- return err;
- if (boundary && put_user(boundary, &src->boundary))
- return -EFAULT;
- return err;
- }
- struct snd_pcm_channel_info32 {
- u32 channel;
- u32 offset;
- u32 first;
- u32 step;
- };
- static int snd_pcm_ioctl_channel_info_compat(struct snd_pcm_substream *substream,
- struct snd_pcm_channel_info32 __user *src)
- {
- struct snd_pcm_channel_info info;
- int err;
- if (get_user(info.channel, &src->channel) ||
- get_user(info.offset, &src->offset) ||
- get_user(info.first, &src->first) ||
- get_user(info.step, &src->step))
- return -EFAULT;
- err = snd_pcm_channel_info(substream, &info);
- if (err < 0)
- return err;
- if (put_user(info.channel, &src->channel) ||
- put_user(info.offset, &src->offset) ||
- put_user(info.first, &src->first) ||
- put_user(info.step, &src->step))
- return -EFAULT;
- return err;
- }
- #ifdef CONFIG_X86_X32
- /* X32 ABI has the same struct as x86-64 for snd_pcm_channel_info */
- static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream,
- struct snd_pcm_channel_info __user *src);
- #define snd_pcm_ioctl_channel_info_x32(s, p) \
- snd_pcm_channel_info_user(s, p)
- #endif /* CONFIG_X86_X32 */
- struct compat_snd_pcm_status64 {
- snd_pcm_state_t state;
- 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;
- u32 avail;
- u32 avail_max;
- u32 overrange;
- snd_pcm_state_t suspended_state;
- u32 audio_tstamp_data;
- s64 audio_tstamp_sec;
- s64 audio_tstamp_nsec;
- s64 driver_tstamp_sec;
- s64 driver_tstamp_nsec;
- u32 audio_tstamp_accuracy;
- unsigned char reserved[52-4*sizeof(s64)];
- } __packed;
- static int snd_pcm_status_user_compat64(struct snd_pcm_substream *substream,
- struct compat_snd_pcm_status64 __user *src,
- bool ext)
- {
- 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,
- * ignore rest of status structure
- */
- if (ext && get_user(status.audio_tstamp_data,
- (u32 __user *)(&src->audio_tstamp_data)))
- return -EFAULT;
- err = snd_pcm_status64(substream, &status);
- if (err < 0)
- return err;
- if (clear_user(src, sizeof(*src)))
- return -EFAULT;
- 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;
- }
- /* both for HW_PARAMS and HW_REFINE */
- static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream,
- int refine,
- struct snd_pcm_hw_params32 __user *data32)
- {
- struct snd_pcm_hw_params *data;
- struct snd_pcm_runtime *runtime;
- int err;
- if (! (runtime = substream->runtime))
- return -ENOTTY;
- data = kmalloc(sizeof(*data), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
- /* only fifo_size (RO from userspace) is different, so just copy all */
- if (copy_from_user(data, data32, sizeof(*data32))) {
- err = -EFAULT;
- goto error;
- }
- if (refine)
- err = snd_pcm_hw_refine(substream, data);
- else
- err = snd_pcm_hw_params(substream, data);
- if (err < 0)
- goto error;
- if (copy_to_user(data32, data, sizeof(*data32)) ||
- put_user(data->fifo_size, &data32->fifo_size)) {
- err = -EFAULT;
- goto error;
- }
- if (! refine) {
- unsigned int new_boundary = recalculate_boundary(runtime);
- if (new_boundary)
- runtime->boundary = new_boundary;
- }
- error:
- kfree(data);
- return err;
- }
- /*
- */
- struct snd_xferi32 {
- s32 result;
- u32 buf;
- u32 frames;
- };
- static int snd_pcm_ioctl_xferi_compat(struct snd_pcm_substream *substream,
- int dir, struct snd_xferi32 __user *data32)
- {
- compat_caddr_t buf;
- u32 frames;
- int err;
- if (! substream->runtime)
- return -ENOTTY;
- if (substream->stream != dir)
- return -EINVAL;
- if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN)
- return -EBADFD;
- if (get_user(buf, &data32->buf) ||
- get_user(frames, &data32->frames))
- return -EFAULT;
- if (dir == SNDRV_PCM_STREAM_PLAYBACK)
- err = snd_pcm_lib_write(substream, compat_ptr(buf), frames);
- else
- err = snd_pcm_lib_read(substream, compat_ptr(buf), frames);
- if (err < 0)
- return err;
- /* copy the result */
- if (put_user(err, &data32->result))
- return -EFAULT;
- return 0;
- }
- /* snd_xfern needs remapping of bufs */
- struct snd_xfern32 {
- s32 result;
- u32 bufs; /* this is void **; */
- u32 frames;
- };
- /*
- * xfern ioctl nees to copy (up to) 128 pointers on stack.
- * although we may pass the copied pointers through f_op->ioctl, but the ioctl
- * handler there expands again the same 128 pointers on stack, so it is better
- * to handle the function (calling pcm_readv/writev) directly in this handler.
- */
- static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream,
- int dir, struct snd_xfern32 __user *data32)
- {
- compat_caddr_t buf;
- compat_caddr_t __user *bufptr;
- u32 frames;
- void __user **bufs;
- int err, ch, i;
- if (! substream->runtime)
- return -ENOTTY;
- if (substream->stream != dir)
- return -EINVAL;
- if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN)
- return -EBADFD;
- if ((ch = substream->runtime->channels) > 128)
- return -EINVAL;
- if (get_user(buf, &data32->bufs) ||
- get_user(frames, &data32->frames))
- return -EFAULT;
- bufptr = compat_ptr(buf);
- bufs = kmalloc_array(ch, sizeof(void __user *), GFP_KERNEL);
- if (bufs == NULL)
- return -ENOMEM;
- for (i = 0; i < ch; i++) {
- u32 ptr;
- if (get_user(ptr, bufptr)) {
- kfree(bufs);
- return -EFAULT;
- }
- bufs[i] = compat_ptr(ptr);
- bufptr++;
- }
- if (dir == SNDRV_PCM_STREAM_PLAYBACK)
- err = snd_pcm_lib_writev(substream, bufs, frames);
- else
- err = snd_pcm_lib_readv(substream, bufs, frames);
- if (err >= 0) {
- if (put_user(err, &data32->result))
- err = -EFAULT;
- }
- kfree(bufs);
- return err;
- }
- #ifdef CONFIG_X86_X32
- /* X32 ABI has 64bit timespec and 64bit alignment */
- struct snd_pcm_mmap_status_x32 {
- snd_pcm_state_t state;
- s32 pad1;
- u32 hw_ptr;
- u32 pad2; /* alignment */
- s64 tstamp_sec;
- s64 tstamp_nsec;
- snd_pcm_state_t suspended_state;
- s32 pad3;
- s64 audio_tstamp_sec;
- s64 audio_tstamp_nsec;
- } __packed;
- struct snd_pcm_mmap_control_x32 {
- u32 appl_ptr;
- u32 avail_min;
- };
- struct snd_pcm_sync_ptr_x32 {
- u32 flags;
- u32 rsvd; /* alignment */
- union {
- struct snd_pcm_mmap_status_x32 status;
- unsigned char reserved[64];
- } s;
- union {
- struct snd_pcm_mmap_control_x32 control;
- unsigned char reserved[64];
- } c;
- } __packed;
- static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream,
- struct snd_pcm_sync_ptr_x32 __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) ||
- 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_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;
- return 0;
- }
- #endif /* CONFIG_X86_X32 */
- #ifdef __BIG_ENDIAN
- typedef char __pad_before_u32[4];
- typedef char __pad_after_u32[0];
- #else
- typedef char __pad_before_u32[0];
- typedef char __pad_after_u32[4];
- #endif
- /* PCM 2.0.15 API definition had a bug in mmap control; it puts the avail_min
- * at the wrong offset due to a typo in padding type.
- * The bug hits only 32bit.
- * A workaround for incorrect read/write is needed only in 32bit compat mode.
- */
- struct __snd_pcm_mmap_control64_buggy {
- __pad_before_u32 __pad1;
- __u32 appl_ptr;
- __pad_before_u32 __pad2; /* SiC! here is the bug */
- __pad_before_u32 __pad3;
- __u32 avail_min;
- __pad_after_uframe __pad4;
- };
- static int snd_pcm_ioctl_sync_ptr_buggy(struct snd_pcm_substream *substream,
- struct snd_pcm_sync_ptr __user *_sync_ptr)
- {
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct snd_pcm_sync_ptr sync_ptr;
- struct __snd_pcm_mmap_control64_buggy *sync_cp;
- volatile struct snd_pcm_mmap_status *status;
- volatile struct snd_pcm_mmap_control *control;
- int err;
- memset(&sync_ptr, 0, sizeof(sync_ptr));
- sync_cp = (struct __snd_pcm_mmap_control64_buggy *)&sync_ptr.c.control;
- if (get_user(sync_ptr.flags, (unsigned __user *)&(_sync_ptr->flags)))
- return -EFAULT;
- if (copy_from_user(sync_cp, &(_sync_ptr->c.control), sizeof(*sync_cp)))
- return -EFAULT;
- status = runtime->status;
- control = runtime->control;
- if (sync_ptr.flags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
- err = snd_pcm_hwsync(substream);
- if (err < 0)
- return err;
- }
- snd_pcm_stream_lock_irq(substream);
- if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) {
- err = pcm_lib_apply_appl_ptr(substream, sync_cp->appl_ptr);
- if (err < 0) {
- snd_pcm_stream_unlock_irq(substream);
- return err;
- }
- } else {
- sync_cp->appl_ptr = control->appl_ptr;
- }
- if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
- control->avail_min = sync_cp->avail_min;
- else
- sync_cp->avail_min = control->avail_min;
- sync_ptr.s.status.state = status->state;
- sync_ptr.s.status.hw_ptr = status->hw_ptr;
- sync_ptr.s.status.tstamp = status->tstamp;
- sync_ptr.s.status.suspended_state = status->suspended_state;
- sync_ptr.s.status.audio_tstamp = status->audio_tstamp;
- snd_pcm_stream_unlock_irq(substream);
- if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr)))
- return -EFAULT;
- return 0;
- }
- /*
- */
- 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_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),
- SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32),
- SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct snd_xferi32),
- 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_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_SYNC_PTR_X32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr_x32),
- #endif /* CONFIG_X86_X32 */
- };
- static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
- {
- struct snd_pcm_file *pcm_file;
- struct snd_pcm_substream *substream;
- void __user *argp = compat_ptr(arg);
- pcm_file = file->private_data;
- if (! pcm_file)
- return -ENOTTY;
- substream = pcm_file->substream;
- if (! substream)
- return -ENOTTY;
- /*
- * When PCM is used on 32bit mode, we need to disable
- * mmap of the old PCM status/control records because
- * of the size incompatibility.
- */
- pcm_file->no_compat_mmap = 1;
- switch (cmd) {
- case SNDRV_PCM_IOCTL_PVERSION:
- case SNDRV_PCM_IOCTL_INFO:
- case SNDRV_PCM_IOCTL_TSTAMP:
- case SNDRV_PCM_IOCTL_TTSTAMP:
- case SNDRV_PCM_IOCTL_USER_PVERSION:
- case SNDRV_PCM_IOCTL_HWSYNC:
- case SNDRV_PCM_IOCTL_PREPARE:
- case SNDRV_PCM_IOCTL_RESET:
- case SNDRV_PCM_IOCTL_START:
- case SNDRV_PCM_IOCTL_DROP:
- case SNDRV_PCM_IOCTL_DRAIN:
- case SNDRV_PCM_IOCTL_PAUSE:
- case SNDRV_PCM_IOCTL_HW_FREE:
- case SNDRV_PCM_IOCTL_RESUME:
- 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_ioctl_sync_ptr_buggy(substream, argp);
- case SNDRV_PCM_IOCTL_HW_REFINE32:
- return snd_pcm_ioctl_hw_params_compat(substream, 1, argp);
- case SNDRV_PCM_IOCTL_HW_PARAMS32:
- 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_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:
- return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp);
- case SNDRV_PCM_IOCTL_READI_FRAMES32:
- return snd_pcm_ioctl_xferi_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp);
- case SNDRV_PCM_IOCTL_WRITEN_FRAMES32:
- return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_PLAYBACK, argp);
- case SNDRV_PCM_IOCTL_READN_FRAMES32:
- return snd_pcm_ioctl_xfern_compat(substream, SNDRV_PCM_STREAM_CAPTURE, argp);
- case SNDRV_PCM_IOCTL_DELAY32:
- return snd_pcm_ioctl_delay_compat(substream, argp);
- case SNDRV_PCM_IOCTL_REWIND32:
- 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_CHANNEL_INFO_X32:
- return snd_pcm_ioctl_channel_info_x32(substream, argp);
- #endif /* CONFIG_X86_X32 */
- }
- return -ENOIOCTLCMD;
- }
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