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/*
* Copyright (C) 2013 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*
*/
#include <linux/uaccess.h>
#include <video/adf.h>
#include "adf_fops.h"
#include "adf_fops32.h"
long adf_compat_post_config(struct file *file,
struct adf_post_config32 __user *arg)
{
struct adf_post_config32 cfg32;
struct adf_post_config __user *cfg;
int ret;
if (copy_from_user(&cfg32, arg, sizeof(cfg32)))
return -EFAULT;
cfg = compat_alloc_user_space(sizeof(*cfg));
if (!access_ok(VERIFY_WRITE, cfg, sizeof(*cfg)))
return -EFAULT;
if (put_user(cfg32.n_interfaces, &cfg->n_interfaces) ||
put_user(compat_ptr(cfg32.interfaces),
&cfg->interfaces) ||
put_user(cfg32.n_bufs, &cfg->n_bufs) ||
put_user(compat_ptr(cfg32.bufs), &cfg->bufs) ||
put_user(cfg32.custom_data_size,
&cfg->custom_data_size) ||
put_user(compat_ptr(cfg32.custom_data),
&cfg->custom_data))
return -EFAULT;
ret = adf_file_ioctl(file, ADF_POST_CONFIG, (unsigned long)cfg);
if (ret < 0)
return ret;
if (copy_in_user(&arg->complete_fence, &cfg->complete_fence,
sizeof(cfg->complete_fence)))
return -EFAULT;
return 0;
}
long adf_compat_get_device_data(struct file *file,
struct adf_device_data32 __user *arg)
{
struct adf_device_data32 data32;
struct adf_device_data __user *data;
int ret;
if (copy_from_user(&data32, arg, sizeof(data32)))
return -EFAULT;
data = compat_alloc_user_space(sizeof(*data));
if (!access_ok(VERIFY_WRITE, data, sizeof(*data)))
return -EFAULT;
if (put_user(data32.n_attachments, &data->n_attachments) ||
put_user(compat_ptr(data32.attachments),
&data->attachments) ||
put_user(data32.n_allowed_attachments,
&data->n_allowed_attachments) ||
put_user(compat_ptr(data32.allowed_attachments),
&data->allowed_attachments) ||
put_user(data32.custom_data_size,
&data->custom_data_size) ||
put_user(compat_ptr(data32.custom_data),
&data->custom_data))
return -EFAULT;
ret = adf_file_ioctl(file, ADF_GET_DEVICE_DATA32, (unsigned long)data);
if (ret < 0)
return ret;
if (copy_in_user(arg->name, data->name, sizeof(arg->name)) ||
copy_in_user(&arg->n_attachments, &data->n_attachments,
sizeof(arg->n_attachments)) ||
copy_in_user(&arg->n_allowed_attachments,
&data->n_allowed_attachments,
sizeof(arg->n_allowed_attachments)) ||
copy_in_user(&arg->custom_data_size,
&data->custom_data_size,
sizeof(arg->custom_data_size)))
return -EFAULT;
return 0;
}
long adf_compat_get_interface_data(struct file *file,
struct adf_interface_data32 __user *arg)
{
struct adf_interface_data32 data32;
struct adf_interface_data __user *data;
int ret;
if (copy_from_user(&data32, arg, sizeof(data32)))
return -EFAULT;
data = compat_alloc_user_space(sizeof(*data));
if (!access_ok(VERIFY_WRITE, data, sizeof(*data)))
return -EFAULT;
if (put_user(data32.n_available_modes, &data->n_available_modes) ||
put_user(compat_ptr(data32.available_modes),
&data->available_modes) ||
put_user(data32.custom_data_size,
&data->custom_data_size) ||
put_user(compat_ptr(data32.custom_data),
&data->custom_data))
return -EFAULT;
ret = adf_file_ioctl(file, ADF_GET_DEVICE_DATA32, (unsigned long)data);
if (ret < 0)
return ret;
if (copy_in_user(arg->name, data->name, sizeof(arg->name)) ||
copy_in_user(&arg->type, &data->type,
sizeof(arg->type)) ||
copy_in_user(&arg->id, &data->id, sizeof(arg->id)) ||
copy_in_user(&arg->dpms_state, &data->dpms_state,
sizeof(arg->dpms_state)) ||
copy_in_user(&arg->hotplug_detect,
&data->hotplug_detect,
sizeof(arg->hotplug_detect)) ||
copy_in_user(&arg->width_mm, &data->width_mm,
sizeof(arg->width_mm)) ||
copy_in_user(&arg->height_mm, &data->height_mm,
sizeof(arg->height_mm)) ||
copy_in_user(&arg->current_mode, &data->current_mode,
sizeof(arg->current_mode)) ||
copy_in_user(&arg->n_available_modes,
&data->n_available_modes,
sizeof(arg->n_available_modes)) ||
copy_in_user(&arg->custom_data_size,
&data->custom_data_size,
sizeof(arg->custom_data_size)))
return -EFAULT;
return 0;
}
long adf_compat_get_overlay_engine_data(struct file *file,
struct adf_overlay_engine_data32 __user *arg)
{
struct adf_overlay_engine_data32 data32;
struct adf_overlay_engine_data __user *data;
int ret;
if (copy_from_user(&data32, arg, sizeof(data32)))
return -EFAULT;
data = compat_alloc_user_space(sizeof(*data));
if (!access_ok(VERIFY_WRITE, data, sizeof(*data)))
return -EFAULT;
if (put_user(data32.custom_data_size, &data->custom_data_size) ||
put_user(compat_ptr(data32.custom_data),
&data->custom_data))
return -EFAULT;
ret = adf_file_ioctl(file, ADF_GET_OVERLAY_ENGINE_DATA,
(unsigned long)data);
if (ret < 0)
return ret;
if (copy_in_user(arg->name, data->name, sizeof(arg->name)) ||
copy_in_user(&arg->custom_data_size,
&data->custom_data_size,
sizeof(arg->custom_data_size)))
return -EFAULT;
return 0;
}
long adf_file_compat_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
switch (cmd) {
case ADF_POST_CONFIG32:
return adf_compat_post_config(file, compat_ptr(arg));
case ADF_GET_DEVICE_DATA32:
return adf_compat_get_device_data(file, compat_ptr(arg));
case ADF_GET_INTERFACE_DATA32:
return adf_compat_get_interface_data(file, compat_ptr(arg));
case ADF_GET_OVERLAY_ENGINE_DATA32:
return adf_compat_get_overlay_engine_data(file,
compat_ptr(arg));
default:
return adf_file_ioctl(file, cmd, arg);
}
}
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