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/*
* Copyright (C) 2012 Spreadtrum Communications 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/compat.h>
#include <linux/fs.h>
#include <linux/uaccess.h>
#include <video/sensor_drv_k.h>
#include "compat_sensor_drv_k.h"
//#define DEBUG_COMPAT_SENSOR_DRV
#ifdef DEBUG_COMPAT_SENSOR_DRV
#define COMPAT_SENSOR_PRINT printk
#else
#define COMPAT_SENSOR_PRINT(...)
#endif
struct compat_sensor_reg_tab_tag {
compat_caddr_t sensor_reg_tab_ptr;
uint32_t reg_count;
uint32_t reg_bits;
uint32_t burst_mode;
};
struct compat_sensor_i2c_tag {
compat_caddr_t i2c_data;
uint16_t i2c_count;
uint16_t slave_addr;
};
struct compat_sensor_otp_data_info_tag {
uint32_t size;
compat_caddr_t data_ptr;
};
struct compat_sensor_otp_param_tag {
uint32_t start_addr;
uint32_t len;
compat_caddr_t buff;
struct compat_sensor_otp_data_info_tag golden;
struct compat_sensor_otp_data_info_tag awb;
struct compat_sensor_otp_data_info_tag lsc;
uint32_t type;
};
#define COMPAT_SENSOR_IO_I2C_WRITE_REGS _IOW(SENSOR_IOC_MAGIC, 14, struct compat_sensor_reg_tab_tag)
#define COMPAT_SENSOR_IO_I2C_WRITE_EXT _IOW(SENSOR_IOC_MAGIC, 17, struct compat_sensor_i2c_tag)
#define COMPAT_SENSOR_IO_I2C_READ_EXT _IOWR(SENSOR_IOC_MAGIC, 20, struct compat_sensor_i2c_tag)
#define COMPAT_SENSOR_IO_READ_OTPDATA _IOWR(SENSOR_IOC_MAGIC, 254,struct compat_sensor_otp_param_tag)
static long compat_get_sensor_reg_tab_tag(
struct compat_sensor_reg_tab_tag __user *data32,
struct sensor_reg_tab_tag __user *data)
{
compat_caddr_t c;
uint32_t i;
int err;
err = get_user(c, &data32->sensor_reg_tab_ptr);
err |= put_user(c, &data->sensor_reg_tab_ptr);
err |= get_user(i, &data32->reg_count);
err |= put_user(i, &data->reg_count);
err |= get_user(i, &data32->reg_bits);
err |= put_user(i, &data->reg_bits);
err |= get_user(i, &data32->burst_mode);
err |= put_user(i, &data->burst_mode);
COMPAT_SENSOR_PRINT("sensor_reg_tab_ptr: %p reg_count: %d reg_bits: %d burst_mode: %d\n",
data->sensor_reg_tab_ptr, data->reg_count, data->reg_bits, data->burst_mode);
return err;
}
static long compat_get_sensor_i2c_tag(
struct compat_sensor_i2c_tag __user *data32,
struct sensor_i2c_tag __user *data)
{
compat_caddr_t c;
uint16_t i;
int err;
err = get_user(c, &data32->i2c_data);
err |= put_user(c, &data->i2c_data);
err |= get_user(i, &data32->i2c_count);
err |= put_user(i, &data->i2c_count);
err |= get_user(i, &data32->slave_addr);
err |= put_user(i, &data->slave_addr);
COMPAT_SENSOR_PRINT("i2c_data: %p i2c_count: %d slave_addr: %d\n",
data->i2c_data, data->i2c_count, data->slave_addr);
return err;
}
static long compat_get_otp_param_tag(
struct compat_sensor_otp_param_tag __user *data32,
struct _sensor_otp_param_tag __user *data)
{
compat_caddr_t c;
uint32_t i;
int err;
err = get_user(i, &data32->start_addr);
err |= put_user(i, &data->start_addr);
err |= get_user(i, &data32->len);
err |= put_user(i, &data->len);
err |= get_user(c, &data32->buff);
err |= put_user(c, &data->buff);
err |= get_user(c, &data32->awb.data_ptr);
err |= put_user(c, &data->awb.data_ptr);
err |= get_user(i, &data32->awb.size);
err |= put_user(i, &data->awb.size);
err |= get_user(c, &data32->lsc.data_ptr);
err |= put_user(c, &data->lsc.data_ptr);
err |= get_user(i, &data32->lsc.size);
err |= put_user(i, &data->lsc.size);
return err;
}
long compat_sensor_k_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
int compatible_arg = 1;
long err = 0;
if (!filp->f_op || !filp->f_op->unlocked_ioctl)
return -ENOTTY;
switch (cmd) {
case COMPAT_SENSOR_IO_I2C_WRITE_REGS:
{
struct compat_sensor_reg_tab_tag __user *data32;
struct sensor_reg_tab_tag __user *data;
data32 = compat_ptr(arg);
data = compat_alloc_user_space(sizeof(*data));
if (NULL == data)
return -EFAULT;
err = compat_get_sensor_reg_tab_tag(data32, data);
if (err)
return err;
return filp->f_op->unlocked_ioctl(filp, SENSOR_IO_I2C_WRITE_REGS,
(unsigned long)data);
}
case COMPAT_SENSOR_IO_I2C_WRITE_EXT:
{
struct compat_sensor_i2c_tag __user *data32;
struct sensor_i2c_tag __user *data;
data32 = compat_ptr(arg);
data = compat_alloc_user_space(sizeof(*data));
if (NULL == data)
return -EFAULT;
err = compat_get_sensor_i2c_tag(data32, data);
if (err)
return err;
return filp->f_op->unlocked_ioctl(filp, SENSOR_IO_I2C_WRITE_EXT,
(unsigned long)data);
}
case COMPAT_SENSOR_IO_I2C_READ_EXT:
{
struct compat_sensor_i2c_tag __user *data32;
struct sensor_i2c_tag __user *data;
data32 = compat_ptr(arg);
data = compat_alloc_user_space(sizeof(*data));
if (NULL == data)
return -EFAULT;
err = compat_get_sensor_i2c_tag(data32, data);
if (err)
return err;
return filp->f_op->unlocked_ioctl(filp, SENSOR_IO_I2C_READ_EXT,
(unsigned long)data);
}
case COMPAT_SENSOR_IO_READ_OTPDATA:
{
struct compat_sensor_otp_param_tag __user *data32;
SENSOR_OTP_PARAM_T __user *data;
printk("SENSOR: ioctl COMPAT_SENSOR_IO_READ_OTPDATA \n");
data32 = compat_ptr(arg);
data = compat_alloc_user_space(sizeof(*data));
if (NULL == data)
return -EFAULT;
err = compat_get_otp_param_tag(data32, data);
if (err)
return err;
return filp->f_op->unlocked_ioctl(filp, SENSOR_IO_READ_OTPDATA,
(unsigned long)data);
}
break;
default:
return filp->f_op->unlocked_ioctl(filp, cmd,
(unsigned long)compat_ptr(arg));
}
}
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