#include <linux/jiffies.h>
#include <linux/kthread.h>
#include <linux/ktime.h>
+#include <linux/compat.h>
#include <asm/processor.h>
-#include "dvb_frontend.h"
-#include "dvbdev.h"
+#include <media/dvb_frontend.h>
+#include <media/dvbdev.h>
#include <linux/dvb/version.h>
static int dvb_frontend_debug;
dvb_frontend_invoke_release(fe, fe->ops.release);
- if (fepriv)
- kfree(fepriv);
+ kfree(fepriv);
}
static void dvb_frontend_free(struct kref *ref)
}
c->stream_id = NO_STREAM_ID_FILTER;
+ c->scrambling_sequence_index = 0;/* default sequence */
switch (c->delivery_system) {
case SYS_DVBS:
_DTV_CMD(DTV_STREAM_ID, 1, 0),
_DTV_CMD(DTV_DVBT2_PLP_ID_LEGACY, 1, 0),
+ _DTV_CMD(DTV_SCRAMBLING_SEQUENCE_INDEX, 1, 0),
_DTV_CMD(DTV_LNA, 1, 0),
/* Get */
tvp->u.data = c->stream_id;
break;
+ /* Physical layer scrambling support */
+ case DTV_SCRAMBLING_SEQUENCE_INDEX:
+ tvp->u.data = c->scrambling_sequence_index;
+ break;
+
/* ATSC-MH */
case DTV_ATSCMH_FIC_VER:
tvp->u.data = fe->dtv_property_cache.atscmh_fic_ver;
c->stream_id = data;
break;
+ /* Physical layer scrambling support */
+ case DTV_SCRAMBLING_SEQUENCE_INDEX:
+ c->scrambling_sequence_index = data;
+ break;
+
/* ATSC-MH */
case DTV_ATSCMH_PARADE_ID:
fe->dtv_property_cache.atscmh_parade_id = data;
return r;
}
-static int dvb_frontend_ioctl(struct file *file, unsigned int cmd, void *parg)
+static int dvb_frontend_do_ioctl(struct file *file, unsigned int cmd,
+ void *parg)
{
struct dvb_device *dvbdev = file->private_data;
struct dvb_frontend *fe = dvbdev->priv;
return err;
}
+static long dvb_frontend_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct dvb_device *dvbdev = file->private_data;
+
+ if (!dvbdev)
+ return -ENODEV;
+
+ return dvb_usercopy(file, cmd, arg, dvb_frontend_do_ioctl);
+}
+
+#ifdef CONFIG_COMPAT
+struct compat_dtv_property {
+ __u32 cmd;
+ __u32 reserved[3];
+ union {
+ __u32 data;
+ struct dtv_fe_stats st;
+ struct {
+ __u8 data[32];
+ __u32 len;
+ __u32 reserved1[3];
+ compat_uptr_t reserved2;
+ } buffer;
+ } u;
+ int result;
+} __attribute__ ((packed));
+
+struct compat_dtv_properties {
+ __u32 num;
+ compat_uptr_t props;
+};
+
+#define COMPAT_FE_SET_PROPERTY _IOW('o', 82, struct compat_dtv_properties)
+#define COMPAT_FE_GET_PROPERTY _IOR('o', 83, struct compat_dtv_properties)
+
+static int dvb_frontend_handle_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct dvb_device *dvbdev = file->private_data;
+ struct dvb_frontend *fe = dvbdev->priv;
+ struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ int i, err = 0;
+
+ if (cmd == COMPAT_FE_SET_PROPERTY) {
+ struct compat_dtv_properties prop, *tvps = NULL;
+ struct compat_dtv_property *tvp = NULL;
+
+ if (copy_from_user(&prop, compat_ptr(arg), sizeof(prop)))
+ return -EFAULT;
+
+ tvps = ∝
+
+ /*
+ * Put an arbitrary limit on the number of messages that can
+ * be sent at once
+ */
+ if (!tvps->num || (tvps->num > DTV_IOCTL_MAX_MSGS))
+ return -EINVAL;
+
+ tvp = memdup_user(compat_ptr(tvps->props), tvps->num * sizeof(*tvp));
+ if (IS_ERR(tvp))
+ return PTR_ERR(tvp);
+
+ for (i = 0; i < tvps->num; i++) {
+ err = dtv_property_process_set(fe, file,
+ (tvp + i)->cmd,
+ (tvp + i)->u.data);
+ if (err < 0) {
+ kfree(tvp);
+ return err;
+ }
+ }
+ kfree(tvp);
+ } else if (cmd == COMPAT_FE_GET_PROPERTY) {
+ struct compat_dtv_properties prop, *tvps = NULL;
+ struct compat_dtv_property *tvp = NULL;
+ struct dtv_frontend_properties getp = fe->dtv_property_cache;
+
+ if (copy_from_user(&prop, compat_ptr(arg), sizeof(prop)))
+ return -EFAULT;
+
+ tvps = ∝
+
+ /*
+ * Put an arbitrary limit on the number of messages that can
+ * be sent at once
+ */
+ if (!tvps->num || (tvps->num > DTV_IOCTL_MAX_MSGS))
+ return -EINVAL;
+
+ tvp = memdup_user(compat_ptr(tvps->props), tvps->num * sizeof(*tvp));
+ if (IS_ERR(tvp))
+ return PTR_ERR(tvp);
+
+ /*
+ * Let's use our own copy of property cache, in order to
+ * avoid mangling with DTV zigzag logic, as drivers might
+ * return crap, if they don't check if the data is available
+ * before updating the properties cache.
+ */
+ if (fepriv->state != FESTATE_IDLE) {
+ err = dtv_get_frontend(fe, &getp, NULL);
+ if (err < 0) {
+ kfree(tvp);
+ return err;
+ }
+ }
+ for (i = 0; i < tvps->num; i++) {
+ err = dtv_property_process_get(
+ fe, &getp, (struct dtv_property *)tvp + i, file);
+ if (err < 0) {
+ kfree(tvp);
+ return err;
+ }
+ }
+
+ if (copy_to_user((void __user *)compat_ptr(tvps->props), tvp,
+ tvps->num * sizeof(struct compat_dtv_property))) {
+ kfree(tvp);
+ return -EFAULT;
+ }
+ kfree(tvp);
+ }
+
+ return err;
+}
+
+static long dvb_frontend_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct dvb_device *dvbdev = file->private_data;
+ struct dvb_frontend *fe = dvbdev->priv;
+ struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ int err;
+
+ if (cmd == COMPAT_FE_SET_PROPERTY || cmd == COMPAT_FE_GET_PROPERTY) {
+ if (down_interruptible(&fepriv->sem))
+ return -ERESTARTSYS;
+
+ err = dvb_frontend_handle_compat_ioctl(file, cmd, arg);
+
+ up(&fepriv->sem);
+ return err;
+ }
+
+ return dvb_frontend_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
+}
+#endif
+
static int dtv_set_frontend(struct dvb_frontend *fe)
{
struct dvb_frontend_private *fepriv = fe->frontend_priv;
struct dvb_frontend *fe = dvbdev->priv;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- int i, err;
+ int i, err = -ENOTSUPP;
dev_dbg(fe->dvb->device, "%s:\n", __func__);
}
}
kfree(tvp);
+ err = 0;
break;
}
case FE_GET_PROPERTY: {
return -EFAULT;
}
kfree(tvp);
+ err = 0;
break;
}
static const struct file_operations dvb_frontend_fops = {
.owner = THIS_MODULE,
- .unlocked_ioctl = dvb_generic_ioctl,
+ .unlocked_ioctl = dvb_frontend_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = dvb_frontend_compat_ioctl,
+#endif
.poll = dvb_frontend_poll,
.open = dvb_frontend_open,
.release = dvb_frontend_release,
#if defined(CONFIG_MEDIA_CONTROLLER_DVB)
.name = fe->ops.info.name,
#endif
- .kernel_ioctl = dvb_frontend_ioctl
};
dev_dbg(dvb->device, "%s:\n", __func__);
projects / linux-2.6-block.git / blobdiff