241 lines
6.7 KiB
C
241 lines
6.7 KiB
C
/*
|
|
* compat_saf775x_ioctl.c -- SAF775X Soc Audio driver IO control
|
|
*
|
|
* Copyright (c) 2017-2019 NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
|
|
#include "saf775x_ioctl.h"
|
|
#include <uapi/misc/compat_saf775x_ioctl.h>
|
|
#include <linux/uaccess.h>
|
|
#include <linux/compat.h>
|
|
|
|
static int compat_get_saf775x_cmd(
|
|
struct compat_saf775x_cmd __user *data32,
|
|
struct saf775x_cmd __user *data)
|
|
{
|
|
compat_ulong_t l;
|
|
compat_uint_t u;
|
|
int err;
|
|
|
|
err = get_user(u, &data32->reg);
|
|
err |= put_user(u, &data->reg);
|
|
err |= get_user(u, &data32->reg_len);
|
|
err |= put_user(u, &data->reg_len);
|
|
err |= get_user(l, &data32->val);
|
|
err |= put_user(l, &data->val);
|
|
err |= get_user(u, &data32->val_len);
|
|
err |= put_user(u, &data->val_len);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int compat_put_saf775x_cmd(
|
|
struct compat_saf775x_cmd __user *data32,
|
|
struct saf775x_cmd __user *data)
|
|
{
|
|
compat_ulong_t l;
|
|
compat_uint_t u;
|
|
int err;
|
|
|
|
err = get_user(u, &data->reg);
|
|
err |= put_user(u, &data32->reg);
|
|
err |= get_user(u, &data->reg_len);
|
|
err |= put_user(u, &data32->reg_len);
|
|
err |= get_user(l, &data->val);
|
|
err |= put_user(l, &data32->val);
|
|
err |= get_user(u, &data->val_len);
|
|
err |= put_user(u, &data32->val_len);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int compat_get_saf775x_param(
|
|
struct compat_saf775x_control_param __user *data32,
|
|
struct saf775x_control_param __user *data)
|
|
{
|
|
char name[20];
|
|
compat_int_t i;
|
|
compat_uint_t u;
|
|
int err;
|
|
|
|
err = copy_from_user(name, &data32->name, sizeof(name));
|
|
err |= copy_to_user(&data->name, name, sizeof(name));
|
|
err |= get_user(u, &data32->reg);
|
|
err |= put_user(u, (compat_uint_t *)data->reg);
|
|
err |= get_user(u, &data32->num_reg);
|
|
err |= put_user(u, &data->num_reg);
|
|
err |= get_user(i, &data32->val);
|
|
err |= put_user(i, &data->val);
|
|
return err;
|
|
}
|
|
|
|
static int compat_put_saf775x_param(
|
|
struct compat_saf775x_control_param __user *data32,
|
|
struct saf775x_control_param __user *data)
|
|
{
|
|
char name[20];
|
|
compat_int_t i;
|
|
compat_uint_t u;
|
|
int err;
|
|
|
|
err = copy_from_user(name, &data->name, sizeof(name));
|
|
err |= copy_to_user(&data32->name, name, sizeof(name));
|
|
err |= get_user(u, (compat_uint_t *)data->reg);
|
|
err |= put_user(u, &data32->reg);
|
|
err |= get_user(u, &data->num_reg);
|
|
err |= put_user(u, &data32->num_reg);
|
|
err |= get_user(i, &data->val);
|
|
err |= put_user(i, &data32->val);
|
|
return err;
|
|
}
|
|
|
|
static int compat_get_saf775x_info(
|
|
struct compat_saf775x_control_info __user *data32,
|
|
struct saf775x_control_info __user *data)
|
|
{
|
|
char name[20];
|
|
compat_int_t i;
|
|
int err;
|
|
|
|
err = copy_from_user(name, &data32->name, sizeof(name));
|
|
err |= copy_to_user(&data->name, name, sizeof(name));
|
|
err |= get_user(i, &data32->min);
|
|
err |= put_user(i, &data->min);
|
|
err |= get_user(i, &data32->max);
|
|
err |= put_user(i, &data->max);
|
|
err |= get_user(i, &data32->step);
|
|
err |= put_user(i, &data->step);
|
|
err |= get_user(i, &data32->val);
|
|
err |= put_user(i, &data->val);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int compat_put_saf775x_info(
|
|
struct compat_saf775x_control_info __user *data32,
|
|
struct saf775x_control_info __user *data)
|
|
{
|
|
char name[20];
|
|
compat_int_t i;
|
|
int err;
|
|
|
|
err = copy_from_user(name, &data->name, sizeof(name));
|
|
err |= copy_to_user(&data32->name, name, sizeof(name));
|
|
err |= get_user(i, &data->min);
|
|
err |= put_user(i, &data32->min);
|
|
err |= get_user(i, &data->max);
|
|
err |= put_user(i, &data32->max);
|
|
err |= get_user(i, &data->step);
|
|
err |= put_user(i, &data32->step);
|
|
err |= get_user(i, &data->val);
|
|
err |= put_user(i, &data32->val);
|
|
return err;
|
|
}
|
|
|
|
long compat_saf775x_hwdep_ioctl(struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
long ret;
|
|
int err;
|
|
struct compat_saf775x_cmd __user *saf775x_cmd32;
|
|
struct saf775x_cmd __user *saf775x_cmd;
|
|
struct compat_saf775x_control_param __user *saf775x_param32;
|
|
struct saf775x_control_param __user *saf775x_param;
|
|
struct compat_saf775x_control_info __user *saf775x_info32;
|
|
struct saf775x_control_info __user *saf775x_info;
|
|
|
|
if (!file->f_op->unlocked_ioctl)
|
|
return -ENOTTY;
|
|
|
|
switch (cmd) {
|
|
case SAF775X_CONTROL_SET_IOCTL_32:
|
|
case SAF775X_CONTROL_GET_IOCTL_32:
|
|
case SAF775X_CONTROL_KEYCODE_32:
|
|
saf775x_cmd32 = compat_ptr(arg);
|
|
saf775x_cmd = compat_alloc_user_space(sizeof(*saf775x_cmd));
|
|
if (saf775x_cmd == NULL)
|
|
return -EFAULT;
|
|
err = compat_get_saf775x_cmd(saf775x_cmd32, saf775x_cmd);
|
|
if (err)
|
|
return err;
|
|
if (cmd == SAF775X_CONTROL_SET_IOCTL_32)
|
|
ret = file->f_op->unlocked_ioctl(file,
|
|
SAF775X_CONTROL_SET_IOCTL,
|
|
(unsigned long)saf775x_cmd);
|
|
else if (cmd == SAF775X_CONTROL_GET_IOCTL_32)
|
|
ret = file->f_op->unlocked_ioctl(file,
|
|
SAF775X_CONTROL_GET_IOCTL,
|
|
(unsigned long)saf775x_cmd);
|
|
else
|
|
ret = file->f_op->unlocked_ioctl(file,
|
|
SAF775X_CONTROL_KEYCODE,
|
|
(unsigned long)saf775x_cmd);
|
|
err = compat_put_saf775x_cmd(saf775x_cmd32, saf775x_cmd);
|
|
return ret ? ret : err;
|
|
|
|
case SAF775x_CODEC_RESET_IOCTL_32:
|
|
ret = file->f_op->unlocked_ioctl(file,
|
|
SAF775x_CODEC_RESET_IOCTL, arg);
|
|
break;
|
|
|
|
case SAF775X_CONTROL_GET_MIXER_32:
|
|
saf775x_info32 = compat_ptr(arg);
|
|
saf775x_info = compat_alloc_user_space(sizeof(*saf775x_info));
|
|
if (saf775x_info == NULL)
|
|
return -EFAULT;
|
|
err = compat_get_saf775x_info(saf775x_info32, saf775x_info);
|
|
if (err){
|
|
pr_err("compat_get_saf775x_info err=%d\n",err);
|
|
return -EFAULT;
|
|
}
|
|
ret = file->f_op->unlocked_ioctl(file,
|
|
SAF775X_CONTROL_GET_MIXER,
|
|
(unsigned long)saf775x_info);
|
|
err = compat_put_saf775x_info(saf775x_info32, saf775x_info);
|
|
return ret ? ret : err;
|
|
|
|
case SAF775X_CONTROL_SET_MIXER_32:
|
|
saf775x_param32 = compat_ptr(arg);
|
|
saf775x_param = compat_alloc_user_space(sizeof(*saf775x_param));
|
|
if (saf775x_param == NULL)
|
|
return -EFAULT;
|
|
err = compat_get_saf775x_param(saf775x_param32, saf775x_param);
|
|
if (err)
|
|
return err;
|
|
ret = file->f_op->unlocked_ioctl(file,
|
|
SAF775X_CONTROL_SET_MIXER,
|
|
(unsigned long)saf775x_param);
|
|
err = compat_put_saf775x_param(saf775x_param32, saf775x_param);
|
|
return ret ? ret : err;
|
|
|
|
case SAF775X_CONTROL_SETIF_32:
|
|
ret = file->f_op->unlocked_ioctl(file,
|
|
SAF775X_CONTROL_SETIF, (unsigned int)arg);
|
|
return ret;
|
|
|
|
case SAF775X_CONTROL_GETIF_32:
|
|
ret = file->f_op->unlocked_ioctl(file,
|
|
SAF775X_CONTROL_GETIF, arg);
|
|
return ret;
|
|
|
|
default:
|
|
return -EFAULT;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|