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#include <linux/compat.h>
#include <linux/fs.h>
#include <linux/uaccess.h>
#include <video/isp_drv_kernel.h>
#include "compat_isp_drv_kernel.h"
struct compat_isp_irq_param {
compat_uint_t isp_irq_val;
compat_uint_t dcam_irq_val;
compat_uint_t irq_val;
compat_int_t ret_val;
};
struct compat_isp_reg_bits {
compat_ulong_t reg_addr;
compat_ulong_t reg_value;
} ;
struct compat_isp_reg_param {
compat_ulong_t reg_param;
uint32_t counts;
} ;
#define COMPAT_ISP_IO_READ _IOR(ISP_IO_MAGIC, 1, struct compat_isp_reg_param)
#define COMPAT_ISP_IO_WRITE _IOW(ISP_IO_MAGIC, 2, struct compat_isp_reg_param)
#define COMPAT_ISP_IO_LNC_PARAM _IOW(ISP_IO_MAGIC, 8, struct compat_isp_reg_param)
#define COMPAT_ISP_IO_LNC _IOW(ISP_IO_MAGIC, 9, struct compat_isp_reg_param)
#define COMPAT_ISP_IO_ALLOC _IOW(ISP_IO_MAGIC, 10, struct compat_isp_reg_param)
static int compat_get_rw_param(
struct compat_isp_reg_param __user *data32,
struct isp_reg_param __user *data)
{
int err = 0;
compat_ulong_t addr;
uint32_t cnt;
err = get_user(addr, &data32->reg_param);
err |= put_user(addr, &data->reg_param);
err |= get_user(cnt, &data32->counts);
err |= put_user(cnt, &data->counts);
//printk("compat_get_rw_param, addr: 0x%x data32->reg_param: 0x%x data->reg_param: 0x%lx cnt: %d\n",
// addr, data32->reg_param, data->reg_param, cnt);
return err;
}
static int compat_get_rw_param_detail(struct isp_reg_param __user *data)
{
struct compat_isp_reg_bits __user *data32;
struct isp_reg_bits __user *reg_data;
int err = 0;
int i = 0;
int cnt = data->counts;
compat_ulong_t addr;
compat_ulong_t val;
struct isp_reg_bits __user *data_tmp;
data32 = compat_ptr(data->reg_param);
// printk("compat_get_rw_param_detail param: %p cnt %d\n", data32, cnt);
reg_data = (struct isp_reg_bits __user*)((unsigned long)data + sizeof(struct isp_reg_param));
data->reg_param = reg_data;
if (reg_data == NULL) {
printk("compat_isp_k failed to compat_alloc_user_space \n");
return -EFAULT;
}
// printk("compat_get_rw_param_detail param: data %p \n", reg_data);
data_tmp = reg_data;
for (i=0 ; i< cnt; i++) {
err = get_user(addr, &data32->reg_addr);
err |= put_user(addr, &data_tmp->reg_addr);
err |= get_user(val, &data32->reg_value);
err |= put_user(val, &data_tmp->reg_value);
if (err) {
printk("compat_isp_k, read_param_detail failed cnt %d ret %d\n", cnt, err);
break;
}
data32++;
data_tmp++;
}
return err;
}
static int compat_put_read_param(
struct compat_isp_reg_param __user *data32,
struct isp_reg_param __user *data)
{
int err = 0;
compat_ulong_t val;
uint32_t cnt;
int i = 0;
struct compat_isp_reg_bits __user *reg_data32;
struct isp_reg_bits __user *reg_data;
cnt = data->counts;
reg_data32 = (struct compat_isp_reg_bits __user *)data32->reg_param;
reg_data = (struct isp_reg_bits __user *)data->reg_param;
for (i=0 ; i<cnt; i++) {
err = get_user(val, ®_data->reg_value);
err |= put_user(val, ®_data32->reg_value);
if (err) {
printk("compat_isp_k, compat_put_read_param ret %d\n", err);
break;
}
reg_data32++;
reg_data++;
}
return err;
}
static int compat_get_alloc_param(
struct compat_isp_reg_param __user *data32,
struct isp_reg_param __user *data)
{
int err = 0;
compat_ulong_t addr;
uint32_t cnt;
struct compat_isp_reg_bits __user *reg_data32;
struct isp_reg_bits __user *reg_data;
err = get_user(addr, &data32->reg_param);
err |= put_user(addr, &data->reg_param);
err |= get_user(cnt, &data32->counts);
err |= put_user(cnt, &data->counts);
return err;
}
static int compat_put_alloc(
struct compat_isp_reg_param __user *data32,
struct isp_reg_param __user *data)
{
int err = 0;
compat_ulong_t addr;
uint32_t cnt;
struct compat_isp_reg_bits __user *reg_data32;
struct isp_reg_bits __user *reg_data;
err = get_user(addr, &data->reg_param);
err |= put_user(addr, &data32->reg_param);
err |= get_user(cnt, &data->counts);
err |= put_user(cnt, &data32->counts);
return err;
}
long compat_isp_kernel_ioctl( struct file *fl, unsigned int cmd, unsigned long param)
{
long ret;
int err = 0;
void __user *up = compat_ptr(param);
if(ISP_IO_IRQ == cmd) {
ret = fl->f_op->unlocked_ioctl(fl, cmd, (unsigned long)up);
} else {
switch (cmd) {
case COMPAT_ISP_IO_READ:
{
struct compat_isp_reg_param __user *data32;
struct isp_reg_param __user *data;
uint32_t cnt;
data32 = compat_ptr(param);
err = get_user(cnt, &data32->counts);
// printk("COMPAT_ISP_IO_WRITE param: %p \n", data32);
data = compat_alloc_user_space(sizeof(struct isp_reg_param)+cnt*sizeof(struct isp_reg_bits));
if (data == NULL) {
printk("compat_isp_k failed to compat_alloc_user_space \n");
return -EFAULT;
}
// printk("@@1 %p", data);
err = compat_get_rw_param(data32, data);
if (err) {
return err;
}
err = compat_get_rw_param_detail(data);
if (err) {
printk("compat_isp_k error %d\n", err);
return err;
}
err = fl->f_op->unlocked_ioctl(fl, ISP_IO_READ, (unsigned long)data);
err = compat_put_read_param(data32, data);
ret = ret ? ret : err;
break;
}
case COMPAT_ISP_IO_WRITE:
{
struct compat_isp_reg_param __user *data32;
struct isp_reg_param __user *data;
uint32_t cnt;
data32 = compat_ptr(param);
err = get_user(cnt, &data32->counts);
// printk("COMPAT_ISP_IO_WRITE param: %p \n", data32);
data = compat_alloc_user_space(sizeof(struct isp_reg_param)+cnt*sizeof(struct isp_reg_bits));
if (data == NULL) {
printk("compat_isp_k failed to compat_alloc_user_space \n");
return -EFAULT;
}
// printk("@@1 %p", data);
err = compat_get_rw_param(data32, data);
if (err) {
return err;
}
err = compat_get_rw_param_detail(data);
if (err) {
printk("compat_isp_k error %d\n", err);
return err;
}
err = fl->f_op->unlocked_ioctl(fl, ISP_IO_WRITE, (unsigned long)data);
break;
}
case COMPAT_ISP_IO_LNC_PARAM:
{
struct compat_isp_reg_param __user *data32;
struct isp_reg_param __user *data;
char __user *lnc_data;
data32 = compat_ptr(param);
data = compat_alloc_user_space(sizeof(*data));
if (data == NULL) {
printk("compat_isp_k failed to compat_alloc_user_space \n");
return -EFAULT;
}
err = compat_get_rw_param(data32, data);
if (err) {
printk("compat_isp_k COMPAT_ISP_IO_LNC_PARAM error\n");
return err;
}
/*lnc_data = compat_alloc_user_space(sizeof(*lnc_data)*data->counts);
data->reg_param = (unsigned long)lnc_data;
ret = copy_from_user((void*)data->reg_param, (void*)data32->reg_param, data->counts);
if (ret) {
return ret;
}*/
// printk("test 123\n");
ret = fl->f_op->unlocked_ioctl(fl, ISP_IO_LNC_PARAM, (unsigned long)data);
// printk("test 123 end\n");
break;
}
case COMPAT_ISP_IO_LNC:
{
struct compat_isp_reg_param __user *data32;
struct isp_reg_param __user *data;
uint32_t cnt;
data32 = compat_ptr(param);
err = get_user(cnt, &data32->counts);
// printk("COMPAT_ISP_IO_WRITE param: %p \n", data32);
data = compat_alloc_user_space(sizeof(struct isp_reg_param)+cnt*sizeof(struct isp_reg_bits));
if (data == NULL) {
printk("compat_isp_k failed to compat_alloc_user_space \n");
return -EFAULT;
}
// printk("@@1 %p", data);
err = compat_get_rw_param(data32, data);
if (err) {
return err;
}
err = compat_get_rw_param_detail(data);
if (err) {
printk("compat_isp_k error %d\n", err);
return err;
}
// printk("test ISP_IO_LNC\n");
err = fl->f_op->unlocked_ioctl(fl, ISP_IO_LNC, (unsigned long)data);
// printk("test ISP_IO_LNC end\n");
break;
}
case COMPAT_ISP_IO_ALLOC:
{
struct compat_isp_reg_param __user *data32;
struct isp_reg_param __user *data;
data32 = compat_ptr(param);
data = compat_alloc_user_space(sizeof(*data));
if (data == NULL) {
printk("compat_isp_k failed to compat_alloc_user_space \n");
return -EFAULT;
}
err = compat_get_alloc_param(data32, data);
if (err) {
return err;
}
ret = fl->f_op->unlocked_ioctl(fl, ISP_IO_ALLOC, (unsigned long)data);
if (ret) {
printk("compat_isp_k,failed to ISP_IO_ALLOC %ld", ret);
goto exit;
}
err = compat_put_alloc(data32, data);
ret = err;
break;
}
case ISP_IO_RST:
case ISP_IO_SETCLK:
case ISP_IO_STOP:
case ISP_IO_INT:
case ISP_IO_DCAM_INT:
{
ret = fl->f_op->unlocked_ioctl(fl, cmd, (unsigned long)up);
break;
}
default:
printk("compat_isp_k, don't support cmd 0x%x", cmd);
break;
}
}
exit:
return ret;
}
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