static int dsp_twch_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
int ret;
switch (cmd) {
case TWCH_IOCTL_MKDEV:
{
char name[TNM_LEN];
if (copy_from_user(name, (void __user *)arg, TNM_LEN))
return -EFAULT;
name[TNM_LEN-1] = '\0';
ret = dsp_mkdev(name);
break;
}
case TWCH_IOCTL_RMDEV:
{
char name[TNM_LEN];
if (copy_from_user(name, (void __user *)arg, TNM_LEN))
return -EFAULT;
name[TNM_LEN-1] = '\0';
ret = dsp_rmdev(name);
break;
}
case TWCH_IOCTL_TADD:
{
struct omap_dsp_taddinfo ti;
if (copy_from_user(&ti, (void __user *)arg, sizeof(ti)))
return -EFAULT;
ret = dsp_tadd_minor(ti.minor, ti.taskadr);
break;
}
case TWCH_IOCTL_TDEL:
ret = dsp_tdel_minor(arg);
break;
case TWCH_IOCTL_TKILL:
ret = dsp_tkill_minor(arg);
break;
default:
return -ENOIOCTLCMD;
}
return ret;
}
static int dsp_twch_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
static DECLARE_MUTEX(ioctl_sem);
int ret;
if (down_interruptible(&ioctl_sem))
return -ERESTARTSYS;
switch (cmd) {
case OMAP_DSP_TWCH_IOCTL_MKDEV:
{
char name[OMAP_DSP_TNM_LEN];
if (copy_from_user(name, (void *)arg, OMAP_DSP_TNM_LEN)) {
ret = -EFAULT;
goto up_out;
}
name[OMAP_DSP_TNM_LEN-1] = '\0';
ret = dsp_mkdev(name);
break;
}
case OMAP_DSP_TWCH_IOCTL_RMDEV:
{
char name[OMAP_DSP_TNM_LEN];
if (copy_from_user(name, (void *)arg, OMAP_DSP_TNM_LEN)) {
ret = -EFAULT;
goto up_out;
}
name[OMAP_DSP_TNM_LEN-1] = '\0';
ret = dsp_rmdev(name);
break;
}
case OMAP_DSP_TWCH_IOCTL_TADD:
{
struct omap_dsp_taddinfo ti;
if (copy_from_user(&ti, (void *)arg, sizeof(ti))) {
ret = -EFAULT;
goto up_out;
}
ret = dsp_tadd(ti.minor, ti.taskadr);
break;
}
case OMAP_DSP_TWCH_IOCTL_TDEL:
ret = dsp_tdel(arg);
break;
case OMAP_DSP_TWCH_IOCTL_TKILL:
ret = dsp_tkill(arg);
break;
default:
ret = -ENOIOCTLCMD;
}
up_out:
up(&ioctl_sem);
return ret;
}
