static long tuner_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int ret;
ioctl_cmd *io_cmd = (ioctl_cmd *)arg;
switch ( cmd ) {
case IOC_GPIO_VAL_SET:
ret = gpio_set(io_cmd->no, io_cmd->val);
if (ret != 0) {
printk("%s:%d !!!tuner_ioctl set error[cmd %x val %d][ret:%d]\n", __FILE__, __LINE__, io_cmd->no, io_cmd->val, ret);
return -EINVAL;
}
break;
case IOC_GPIO_VAL_GET:
ret = gpio_get(io_cmd->no, &(io_cmd->val));
if (ret != 0) {
printk("%s:%d !!!tuner_ioctl get error[cmd %x val %d][ret:%d]\n", __FILE__, __LINE__, io_cmd->no, io_cmd->val, ret);
return -EINVAL;
}
break;
case IOC_VREG_ENABLE:
ret = tuner_vreg_enable();
if (ret != 0) {
printk("%s:%d !!!tuner_ioctl set error[ret:%d]¥n", __FILE__, __LINE__, ret);
return -EINVAL;
}
break;
case IOC_VREG_DISABLE:
ret = tuner_vreg_disable();
if (ret != 0) {
printk("%s:%d !!!tuner_ioctl set error[ret:%d]¥n", __FILE__, __LINE__, ret);
return -EINVAL;
}
break;
default:
/* NOTE: returning a fault code here could cause trouble
* in buggy userspace code. Some old kernel bugs returned
* zero in this case, and userspace code might accidentally
* have depended on that bug.
*/
return -ENOTTY;
}
return 0;
}
static long tuner_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int ret;
ioctl_cmd io_cmd_work;
ioctl_cmd *io_cmd = &io_cmd_work;
if (copy_from_user(io_cmd, (ioctl_cmd*)arg, sizeof(ioctl_cmd))) {
printk("%s:%d !!!tuner_ioctl copy_from_user error %08x\n", __FILE__, __LINE__, (unsigned int)arg);
return -EFAULT;
}
switch ( cmd ) {
case IOC_GPIO_VAL_SET:
ret = gpio_set(io_cmd->id, io_cmd->val);
if (ret != 0) {
printk("%s:%d !!!tuner_ioctl set error[cmd %x val %d][ret:%d]\n", __FILE__, __LINE__, io_cmd->id, io_cmd->val, ret);
return -EINVAL;
}
break;
case IOC_GPIO_VAL_GET:
ret = gpio_get(io_cmd->id, &(io_cmd->val));
if (ret != 0) {
printk("%s:%d !!!tuner_ioctl get error[cmd %x val %d][ret:%d]\n", __FILE__, __LINE__, io_cmd->id, io_cmd->val, ret);
return -EINVAL;
}
if (copy_to_user((ioctl_cmd*)arg, io_cmd, sizeof(ioctl_cmd))) {
printk("%s:%d !!!tuner_ioctl copy_to_user error %08x\n", __FILE__, __LINE__, (unsigned int)arg);
return -EFAULT;
}
break;
case IOC_VREG_ENABLE:
ret = tuner_vreg_enable();
if (ret != 0) {
printk("%s:%d !!!tuner_ioctl set error[ret:%d]\n", __FILE__, __LINE__, ret);
return -EINVAL;
}
break;
case IOC_VREG_DISABLE:
ret = tuner_vreg_disable();
if (ret != 0) {
printk("%s:%d !!!tuner_ioctl set error[ret:%d]\n", __FILE__, __LINE__, ret);
return -EINVAL;
}
break;
case IOC_CLK_ENABLE:
ret = tuner_clk_enable();
if (ret != 0) {
printk("%s:%d !!!tuner_ioctl set error[ret:%d]\n", __FILE__, __LINE__, ret);
return -EINVAL;
}
break;
case IOC_CLK_DISABLE:
ret = tuner_clk_disable();
if (ret != 0) {
printk("%s:%d !!!tuner_ioctl set error[ret:%d]\n", __FILE__, __LINE__, ret);
return -EINVAL;
}
break;
case IOC_HW_REV_GET:
ret = hw_revision_get(&(io_cmd->val));
if (ret != 0) {
printk("%s:%d !!!tuner_ioctl set error[ret:%d]\n", __FILE__, __LINE__, ret);
return -EINVAL;
}
if (copy_to_user((ioctl_cmd*)arg, io_cmd, sizeof(ioctl_cmd))) {
printk("%s:%d !!!tuner_ioctl copy_to_user error %08x\n", __FILE__, __LINE__, (unsigned int)arg);
return -EFAULT;
}
break;
default:
/* NOTE: returning a fault code here could cause trouble
* in buggy userspace code. Some old kernel bugs returned
* zero in this case, and userspace code might accidentally
* have depended on that bug.
*/
return -ENOTTY;
}
return 0;
}
