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Diffstat (limited to 'ANDROID_3.4.5/sound/core/pcm_compat.c')
-rw-r--r--ANDROID_3.4.5/sound/core/pcm_compat.c532
1 files changed, 0 insertions, 532 deletions
diff --git a/ANDROID_3.4.5/sound/core/pcm_compat.c b/ANDROID_3.4.5/sound/core/pcm_compat.c
deleted file mode 100644
index 91cdf943..00000000
--- a/ANDROID_3.4.5/sound/core/pcm_compat.c
+++ /dev/null
@@ -1,532 +0,0 @@
-/*
- * 32bit -> 64bit ioctl wrapper for PCM API
- * Copyright (c) by Takashi Iwai <tiwai@suse.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-/* 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;
- mm_segment_t fs;
- int err;
-
- fs = snd_enter_user();
- err = snd_pcm_delay(substream, &delay);
- snd_leave_user(fs);
- if (err < 0)
- return err;
- if (put_user(delay, src))
- return -EFAULT;
- return err;
-}
-
-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;
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- err = snd_pcm_playback_rewind(substream, frames);
- else
- err = snd_pcm_capture_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;
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- err = snd_pcm_playback_forward(substream, frames);
- else
- err = snd_pcm_capture_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;
- unsigned char reserved[64];
-};
-
-/* 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)
-{
- struct snd_pcm_sw_params params;
- snd_pcm_uframes_t boundary;
- int err;
-
- memset(&params, 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))
- 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, &params);
- 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;
-}
-
-struct snd_pcm_status32 {
- s32 state;
- struct compat_timespec trigger_tstamp;
- struct compat_timespec tstamp;
- u32 appl_ptr;
- u32 hw_ptr;
- s32 delay;
- u32 avail;
- u32 avail_max;
- u32 overrange;
- s32 suspended_state;
- unsigned char reserved[60];
-} __attribute__((packed));
-
-
-static int snd_pcm_status_user_compat(struct snd_pcm_substream *substream,
- struct snd_pcm_status32 __user *src)
-{
- struct snd_pcm_status status;
- int err;
-
- err = snd_pcm_status(substream, &status);
- if (err < 0)
- return err;
-
- if (put_user(status.state, &src->state) ||
- put_user(status.trigger_tstamp.tv_sec, &src->trigger_tstamp.tv_sec) ||
- put_user(status.trigger_tstamp.tv_nsec, &src->trigger_tstamp.tv_nsec) ||
- put_user(status.tstamp.tv_sec, &src->tstamp.tv_sec) ||
- put_user(status.tstamp.tv_nsec, &src->tstamp.tv_nsec) ||
- 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))
- 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;
-
- /* only fifo_size is different, so just copy all */
- data = memdup_user(data32, sizeof(*data32));
- if (IS_ERR(data))
- return PTR_ERR(data);
-
- 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 ((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(sizeof(void __user *) * ch, 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;
-}
-
-
-struct snd_pcm_mmap_status32 {
- s32 state;
- s32 pad1;
- u32 hw_ptr;
- struct compat_timespec tstamp;
- s32 suspended_state;
-} __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;
- 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.tv_sec) ||
- put_user(sstatus.tstamp.tv_nsec, &src->s.status.tstamp.tv_nsec) ||
- put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
- put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
- put_user(scontrol.avail_min, &src->c.control.avail_min))
- 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_STATUS32 = _IOR('A', 0x20, 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_SYNC_PTR32 = _IOWR('A', 0x23, struct snd_pcm_sync_ptr32),
-
-};
-
-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 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_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:
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- return snd_pcm_playback_ioctl1(file, substream, cmd, argp);
- else
- return snd_pcm_capture_ioctl1(file, substream, cmd, 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_STATUS32:
- return snd_pcm_status_user_compat(substream, argp);
- case SNDRV_PCM_IOCTL_SYNC_PTR32:
- return snd_pcm_ioctl_sync_ptr_compat(substream, argp);
- 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);
- }
-
- return -ENOIOCTLCMD;
-}
generated by cgit (git 2.34.1) at 2025-06-03 00:49:00 +0000