static DECLARE_RWSEM(snd_ioctl_rwsem);
static LIST_HEAD(snd_control_ioctls);
+#ifdef CONFIG_COMPAT
+static LIST_HEAD(snd_control_compat_ioctls);
+#endif
static int snd_ctl_open(struct inode *inode, struct file *file)
{
static int snd_ctl_card_info(snd_card_t * card, snd_ctl_file_t * ctl,
unsigned int cmd, void __user *arg)
{
- snd_ctl_card_info_t info;
+ snd_ctl_card_info_t *info;
- memset(&info, 0, sizeof(info));
+ info = kcalloc(1, sizeof(*info), GFP_KERNEL);
+ if (! info)
+ return -ENOMEM;
down_read(&snd_ioctl_rwsem);
- info.card = card->number;
- strlcpy(info.id, card->id, sizeof(info.id));
- strlcpy(info.driver, card->driver, sizeof(info.driver));
- strlcpy(info.name, card->shortname, sizeof(info.name));
- strlcpy(info.longname, card->longname, sizeof(info.longname));
- strlcpy(info.mixername, card->mixername, sizeof(info.mixername));
- strlcpy(info.components, card->components, sizeof(info.components));
+ info->card = card->number;
+ strlcpy(info->id, card->id, sizeof(info->id));
+ strlcpy(info->driver, card->driver, sizeof(info->driver));
+ strlcpy(info->name, card->shortname, sizeof(info->name));
+ strlcpy(info->longname, card->longname, sizeof(info->longname));
+ strlcpy(info->mixername, card->mixername, sizeof(info->mixername));
+ strlcpy(info->components, card->components, sizeof(info->components));
up_read(&snd_ioctl_rwsem);
- if (copy_to_user(arg, &info, sizeof(snd_ctl_card_info_t)))
+ if (copy_to_user(arg, info, sizeof(snd_ctl_card_info_t))) {
+ kfree(info);
return -EFAULT;
+ }
+ kfree(info);
return 0;
}
return 0;
}
-static int snd_ctl_elem_info(snd_ctl_file_t *ctl, snd_ctl_elem_info_t __user *_info)
+static int snd_ctl_elem_info(snd_ctl_file_t *ctl, snd_ctl_elem_info_t *info)
{
snd_card_t *card = ctl->card;
- snd_ctl_elem_info_t info;
snd_kcontrol_t *kctl;
snd_kcontrol_volatile_t *vd;
unsigned int index_offset;
int result;
- if (copy_from_user(&info, _info, sizeof(info)))
- return -EFAULT;
down_read(&card->controls_rwsem);
- kctl = snd_ctl_find_id(card, &info.id);
+ kctl = snd_ctl_find_id(card, &info->id);
if (kctl == NULL) {
up_read(&card->controls_rwsem);
return -ENOENT;
}
#ifdef CONFIG_SND_DEBUG
- info.access = 0;
+ info->access = 0;
#endif
- result = kctl->info(kctl, &info);
+ result = kctl->info(kctl, info);
if (result >= 0) {
- snd_assert(info.access == 0, );
- index_offset = snd_ctl_get_ioff(kctl, &info.id);
+ snd_assert(info->access == 0, );
+ index_offset = snd_ctl_get_ioff(kctl, &info->id);
vd = &kctl->vd[index_offset];
- snd_ctl_build_ioff(&info.id, kctl, index_offset);
- info.access = vd->access;
+ snd_ctl_build_ioff(&info->id, kctl, index_offset);
+ info->access = vd->access;
if (vd->owner) {
- info.access |= SNDRV_CTL_ELEM_ACCESS_LOCK;
+ info->access |= SNDRV_CTL_ELEM_ACCESS_LOCK;
if (vd->owner == ctl)
- info.access |= SNDRV_CTL_ELEM_ACCESS_OWNER;
- info.owner = vd->owner_pid;
+ info->access |= SNDRV_CTL_ELEM_ACCESS_OWNER;
+ info->owner = vd->owner_pid;
} else {
- info.owner = -1;
+ info->owner = -1;
}
}
up_read(&card->controls_rwsem);
+ return result;
+}
+
+static int snd_ctl_elem_info_user(snd_ctl_file_t *ctl, snd_ctl_elem_info_t __user *_info)
+{
+ snd_ctl_elem_info_t info;
+ int result;
+
+ if (copy_from_user(&info, _info, sizeof(info)))
+ return -EFAULT;
+ result = snd_ctl_elem_info(ctl, &info);
if (result >= 0)
if (copy_to_user(_info, &info, sizeof(info)))
return -EFAULT;
struct user_element *ue = kcontrol->private_data;
*uinfo = ue->info;
- if (ue->info.type == SNDRV_CTL_ELEM_TYPE_ENUMERATED) {
- uinfo->value.enumerated.items = ue->info.value.enumerated.items;
- if (uinfo->value.enumerated.item >= ue->info.value.enumerated.items)
- uinfo->value.enumerated.item = 0;
- strlcpy(uinfo->value.enumerated.name,
- (char *)ue->priv_data + uinfo->value.enumerated.item * 64,
- 64);
- }
return 0;
}
kfree(kcontrol->private_data);
}
-static int snd_ctl_elem_add(snd_ctl_file_t *file, snd_ctl_elem_info_t __user *_info, int replace)
+static int snd_ctl_elem_add(snd_ctl_file_t *file, snd_ctl_elem_info_t *info, int replace)
{
snd_card_t *card = file->card;
- snd_ctl_elem_info_t info;
snd_kcontrol_t kctl, *_kctl;
unsigned int access;
- long private_size, extra_size;
+ long private_size;
struct user_element *ue;
int idx, err;
if (card->user_ctl_count >= MAX_USER_CONTROLS)
return -ENOMEM;
- if (copy_from_user(&info, _info, sizeof(info)))
- return -EFAULT;
- if (info.count > 1024)
+ if (info->count > 1024)
return -EINVAL;
- access = info.access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
- (info.access & (SNDRV_CTL_ELEM_ACCESS_READWRITE|SNDRV_CTL_ELEM_ACCESS_INACTIVE));
- info.id.numid = 0;
+ access = info->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
+ (info->access & (SNDRV_CTL_ELEM_ACCESS_READWRITE|SNDRV_CTL_ELEM_ACCESS_INACTIVE));
+ info->id.numid = 0;
memset(&kctl, 0, sizeof(kctl));
down_write(&card->controls_rwsem);
- _kctl = snd_ctl_find_id(card, &info.id);
+ _kctl = snd_ctl_find_id(card, &info->id);
err = 0;
if (_kctl) {
if (replace)
up_write(&card->controls_rwsem);
if (err < 0)
return err;
- memcpy(&kctl.id, &info.id, sizeof(info.id));
- kctl.count = info.owner ? info.owner : 1;
+ memcpy(&kctl.id, &info->id, sizeof(info->id));
+ kctl.count = info->owner ? info->owner : 1;
access |= SNDRV_CTL_ELEM_ACCESS_USER;
kctl.info = snd_ctl_elem_user_info;
if (access & SNDRV_CTL_ELEM_ACCESS_READ)
kctl.get = snd_ctl_elem_user_get;
if (access & SNDRV_CTL_ELEM_ACCESS_WRITE)
kctl.put = snd_ctl_elem_user_put;
- extra_size = 0;
- switch (info.type) {
+ switch (info->type) {
case SNDRV_CTL_ELEM_TYPE_BOOLEAN:
private_size = sizeof(char);
- if (info.count > 128)
+ if (info->count > 128)
return -EINVAL;
break;
case SNDRV_CTL_ELEM_TYPE_INTEGER:
private_size = sizeof(long);
- if (info.count > 128)
+ if (info->count > 128)
return -EINVAL;
break;
case SNDRV_CTL_ELEM_TYPE_INTEGER64:
private_size = sizeof(long long);
- if (info.count > 64)
+ if (info->count > 64)
return -EINVAL;
break;
- case SNDRV_CTL_ELEM_TYPE_ENUMERATED:
- private_size = sizeof(unsigned int);
- if (info.count > 128)
- return -EINVAL;
- if (info.value.enumerated.items > 128)
- return -EINVAL;
- extra_size = info.value.enumerated.items * 64;
- break;
case SNDRV_CTL_ELEM_TYPE_BYTES:
private_size = sizeof(unsigned char);
- if (info.count > 512)
+ if (info->count > 512)
return -EINVAL;
break;
case SNDRV_CTL_ELEM_TYPE_IEC958:
private_size = sizeof(struct sndrv_aes_iec958);
- if (info.count != 1)
+ if (info->count != 1)
return -EINVAL;
break;
default:
return -EINVAL;
}
- private_size *= info.count;
- ue = kcalloc(1, sizeof(struct user_element) + private_size + extra_size, GFP_KERNEL);
+ private_size *= info->count;
+ ue = kcalloc(1, sizeof(struct user_element) + private_size, GFP_KERNEL);
if (ue == NULL)
return -ENOMEM;
- ue->info = info;
- ue->elem_data = (char *)ue + sizeof(ue);
+ ue->info = *info;
+ ue->elem_data = (char *)ue + sizeof(*ue);
ue->elem_data_size = private_size;
- if (extra_size) {
- ue->priv_data = (char *)ue + sizeof(ue) + private_size;
- ue->priv_data_size = extra_size;
- if (ue->info.type == SNDRV_CTL_ELEM_TYPE_ENUMERATED) {
- if (copy_from_user(ue->priv_data, *(char __user **)info.value.enumerated.name, extra_size))
- return -EFAULT;
- }
- }
kctl.private_free = snd_ctl_elem_user_free;
_kctl = snd_ctl_new(&kctl, access);
if (_kctl == NULL) {
return 0;
}
+static int snd_ctl_elem_add_user(snd_ctl_file_t *file, snd_ctl_elem_info_t __user *_info, int replace)
+{
+ snd_ctl_elem_info_t info;
+ if (copy_from_user(&info, _info, sizeof(info)))
+ return -EFAULT;
+ return snd_ctl_elem_add(file, &info, replace);
+}
+
static int snd_ctl_elem_remove(snd_ctl_file_t *file, snd_ctl_elem_id_t __user *_id)
{
snd_ctl_elem_id_t id;
switch (power_state) {
case SNDRV_CTL_POWER_D0:
if (card->power_state != power_state) {
- /* FIXME: pass the correct state value */
- card->pm_resume(card, 0);
+ card->pm_resume(card);
snd_power_change_state(card, power_state);
}
break;
case SNDRV_CTL_POWER_D3hot:
if (card->power_state != power_state) {
- /* FIXME: pass the correct state value */
- card->pm_suspend(card, 0);
+ card->pm_suspend(card, PMSG_SUSPEND);
snd_power_change_state(card, power_state);
}
break;
}
#endif
-static inline int _snd_ctl_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
snd_ctl_file_t *ctl;
snd_card_t *card;
case SNDRV_CTL_IOCTL_ELEM_LIST:
return snd_ctl_elem_list(ctl->card, argp);
case SNDRV_CTL_IOCTL_ELEM_INFO:
- return snd_ctl_elem_info(ctl, argp);
+ return snd_ctl_elem_info_user(ctl, argp);
case SNDRV_CTL_IOCTL_ELEM_READ:
return snd_ctl_elem_read_user(ctl->card, argp);
case SNDRV_CTL_IOCTL_ELEM_WRITE:
case SNDRV_CTL_IOCTL_ELEM_UNLOCK:
return snd_ctl_elem_unlock(ctl, argp);
case SNDRV_CTL_IOCTL_ELEM_ADD:
- return snd_ctl_elem_add(ctl, argp, 0);
+ return snd_ctl_elem_add_user(ctl, argp, 0);
case SNDRV_CTL_IOCTL_ELEM_REPLACE:
- return snd_ctl_elem_add(ctl, argp, 1);
+ return snd_ctl_elem_add_user(ctl, argp, 1);
case SNDRV_CTL_IOCTL_ELEM_REMOVE:
return snd_ctl_elem_remove(ctl, argp);
case SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS:
return -ENOTTY;
}
-/* FIXME: need to unlock BKL to allow preemption */
-static int snd_ctl_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- int err;
- unlock_kernel();
- err = _snd_ctl_ioctl(inode, file, cmd, arg);
- lock_kernel();
- return err;
-}
-
static ssize_t snd_ctl_read(struct file *file, char __user *buffer, size_t count, loff_t * offset)
{
snd_ctl_file_t *ctl;
* register the device-specific control-ioctls.
* called from each device manager like pcm.c, hwdep.c, etc.
*/
-int snd_ctl_register_ioctl(snd_kctl_ioctl_func_t fcn)
+static int _snd_ctl_register_ioctl(snd_kctl_ioctl_func_t fcn, struct list_head *lists)
{
snd_kctl_ioctl_t *pn;
return -ENOMEM;
pn->fioctl = fcn;
down_write(&snd_ioctl_rwsem);
- list_add_tail(&pn->list, &snd_control_ioctls);
+ list_add_tail(&pn->list, lists);
up_write(&snd_ioctl_rwsem);
return 0;
}
+int snd_ctl_register_ioctl(snd_kctl_ioctl_func_t fcn)
+{
+ return _snd_ctl_register_ioctl(fcn, &snd_control_ioctls);
+}
+
+#ifdef CONFIG_COMPAT
+int snd_ctl_register_ioctl_compat(snd_kctl_ioctl_func_t fcn)
+{
+ return _snd_ctl_register_ioctl(fcn, &snd_control_compat_ioctls);
+}
+#endif
+
/*
* de-register the device-specific control-ioctls.
*/
-int snd_ctl_unregister_ioctl(snd_kctl_ioctl_func_t fcn)
+static int _snd_ctl_unregister_ioctl(snd_kctl_ioctl_func_t fcn, struct list_head *lists)
{
struct list_head *list;
snd_kctl_ioctl_t *p;
snd_runtime_check(fcn != NULL, return -EINVAL);
down_write(&snd_ioctl_rwsem);
- list_for_each(list, &snd_control_ioctls) {
+ list_for_each(list, lists) {
p = list_entry(list, snd_kctl_ioctl_t, list);
if (p->fioctl == fcn) {
list_del(&p->list);
return -EINVAL;
}
+int snd_ctl_unregister_ioctl(snd_kctl_ioctl_func_t fcn)
+{
+ return _snd_ctl_unregister_ioctl(fcn, &snd_control_ioctls);
+}
+
+#ifdef CONFIG_COMPAT
+int snd_ctl_unregister_ioctl_compat(snd_kctl_ioctl_func_t fcn)
+{
+ return _snd_ctl_unregister_ioctl(fcn, &snd_control_compat_ioctls);
+}
+
+#endif
+
static int snd_ctl_fasync(int fd, struct file * file, int on)
{
snd_ctl_file_t *ctl;
return 0;
}
+/*
+ * ioctl32 compat
+ */
+#ifdef CONFIG_COMPAT
+#include "control_compat.c"
+#else
+#define snd_ctl_ioctl_compat NULL
+#endif
+
/*
* INIT PART
*/
.open = snd_ctl_open,
.release = snd_ctl_release,
.poll = snd_ctl_poll,
- .ioctl = snd_ctl_ioctl,
+ .unlocked_ioctl = snd_ctl_ioctl,
+ .compat_ioctl = snd_ctl_ioctl_compat,
.fasync = snd_ctl_fasync,
};
git://git.onelab.eu / linux-2.6.git / blobdiff