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-rw-r--r--drivers/media/dvb-core/dvb_ca_en50221.c2
-rw-r--r--drivers/media/dvb-core/dvb_frontend.c84
-rw-r--r--drivers/media/dvb-core/dvbdev.c18
3 files changed, 82 insertions, 22 deletions
diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb-core/dvb_ca_en50221.c
index 1310526b0d49..4d371cea0d5d 100644
--- a/drivers/media/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb-core/dvb_ca_en50221.c
@@ -1391,7 +1391,7 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file,
struct dvb_ca_slot *sl;
slot = info->num;
- if ((slot > ca->slot_count) || (slot < 0)) {
+ if ((slot >= ca->slot_count) || (slot < 0)) {
err = -EINVAL;
goto out_unlock;
}
diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index ce25aef39008..c4e7ebfe4d29 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -894,21 +894,67 @@ static int dvb_frontend_start(struct dvb_frontend *fe)
}
static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe,
- u32 *freq_min, u32 *freq_max)
+ u32 *freq_min, u32 *freq_max,
+ u32 *tolerance)
{
- *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min);
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ u32 tuner_min = fe->ops.tuner_ops.info.frequency_min_hz;
+ u32 tuner_max = fe->ops.tuner_ops.info.frequency_max_hz;
+ u32 frontend_min = fe->ops.info.frequency_min_hz;
+ u32 frontend_max = fe->ops.info.frequency_max_hz;
+
+ *freq_min = max(frontend_min, tuner_min);
- if (fe->ops.info.frequency_max == 0)
- *freq_max = fe->ops.tuner_ops.info.frequency_max;
- else if (fe->ops.tuner_ops.info.frequency_max == 0)
- *freq_max = fe->ops.info.frequency_max;
+ if (frontend_max == 0)
+ *freq_max = tuner_max;
+ else if (tuner_max == 0)
+ *freq_max = frontend_max;
else
- *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max);
+ *freq_max = min(frontend_max, tuner_max);
if (*freq_min == 0 || *freq_max == 0)
dev_warn(fe->dvb->device,
"DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n",
fe->dvb->num, fe->id);
+
+ /* If the standard is for satellite, convert frequencies to kHz */
+ switch (c->delivery_system) {
+ case SYS_DVBS:
+ case SYS_DVBS2:
+ case SYS_TURBO:
+ case SYS_ISDBS:
+ *freq_min /= kHz;
+ *freq_max /= kHz;
+ if (tolerance)
+ *tolerance = fe->ops.info.frequency_tolerance_hz / kHz;
+
+ break;
+ default:
+ if (tolerance)
+ *tolerance = fe->ops.info.frequency_tolerance_hz;
+ break;
+ }
+}
+
+static u32 dvb_frontend_get_stepsize(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ u32 fe_step = fe->ops.info.frequency_stepsize_hz;
+ u32 tuner_step = fe->ops.tuner_ops.info.frequency_step_hz;
+ u32 step = max(fe_step, tuner_step);
+
+ switch (c->delivery_system) {
+ case SYS_DVBS:
+ case SYS_DVBS2:
+ case SYS_TURBO:
+ case SYS_ISDBS:
+ step /= kHz;
+ break;
+ default:
+ break;
+ }
+
+ return step;
}
static int dvb_frontend_check_parameters(struct dvb_frontend *fe)
@@ -918,7 +964,7 @@ static int dvb_frontend_check_parameters(struct dvb_frontend *fe)
u32 freq_max;
/* range check: frequency */
- dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max);
+ dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max, NULL);
if ((freq_min && c->frequency < freq_min) ||
(freq_max && c->frequency > freq_max)) {
dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n",
@@ -2244,8 +2290,8 @@ static int dtv_set_frontend(struct dvb_frontend *fe)
case SYS_ISDBT:
case SYS_DTMB:
fepriv->min_delay = HZ / 20;
- fepriv->step_size = fe->ops.info.frequency_stepsize * 2;
- fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1;
+ fepriv->step_size = dvb_frontend_get_stepsize(fe) * 2;
+ fepriv->max_drift = (dvb_frontend_get_stepsize(fe) * 2) + 1;
break;
default:
/*
@@ -2374,9 +2420,17 @@ static int dvb_frontend_handle_ioctl(struct file *file,
case FE_GET_INFO: {
struct dvb_frontend_info *info = parg;
-
- memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info));
- dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max);
+ memset(info, 0, sizeof(*info));
+
+ strcpy(info->name, fe->ops.info.name);
+ info->symbol_rate_min = fe->ops.info.symbol_rate_min;
+ info->symbol_rate_max = fe->ops.info.symbol_rate_max;
+ info->symbol_rate_tolerance = fe->ops.info.symbol_rate_tolerance;
+ info->caps = fe->ops.info.caps;
+ info->frequency_stepsize = dvb_frontend_get_stepsize(fe);
+ dvb_frontend_get_frequency_limits(fe, &info->frequency_min,
+ &info->frequency_max,
+ &info->frequency_tolerance);
/*
* Associate the 4 delivery systems supported by DVBv3
@@ -2406,10 +2460,10 @@ static int dvb_frontend_handle_ioctl(struct file *file,
dev_err(fe->dvb->device,
"%s: doesn't know how to handle a DVBv3 call to delivery system %i\n",
__func__, c->delivery_system);
- fe->ops.info.type = FE_OFDM;
+ info->type = FE_OFDM;
}
dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n",
- __func__, c->delivery_system, fe->ops.info.type);
+ __func__, c->delivery_system, info->type);
/* Set CAN_INVERSION_AUTO bit on in other than oneshot mode */
if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT))
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index 64d6793674b9..3c8778570331 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -440,8 +440,10 @@ static int dvb_register_media_device(struct dvb_device *dvbdev,
if (!dvbdev->entity)
return 0;
- link = media_create_intf_link(dvbdev->entity, &dvbdev->intf_devnode->intf,
- MEDIA_LNK_FL_ENABLED);
+ link = media_create_intf_link(dvbdev->entity,
+ &dvbdev->intf_devnode->intf,
+ MEDIA_LNK_FL_ENABLED |
+ MEDIA_LNK_FL_IMMUTABLE);
if (!link)
return -ENOMEM;
#endif
@@ -599,7 +601,8 @@ static int dvb_create_io_intf_links(struct dvb_adapter *adap,
if (strncmp(entity->name, name, strlen(name)))
continue;
link = media_create_intf_link(entity, intf,
- MEDIA_LNK_FL_ENABLED);
+ MEDIA_LNK_FL_ENABLED |
+ MEDIA_LNK_FL_IMMUTABLE);
if (!link)
return -ENOMEM;
}
@@ -754,14 +757,16 @@ int dvb_create_media_graph(struct dvb_adapter *adap,
media_device_for_each_intf(intf, mdev) {
if (intf->type == MEDIA_INTF_T_DVB_CA && ca) {
link = media_create_intf_link(ca, intf,
- MEDIA_LNK_FL_ENABLED);
+ MEDIA_LNK_FL_ENABLED |
+ MEDIA_LNK_FL_IMMUTABLE);
if (!link)
return -ENOMEM;
}
if (intf->type == MEDIA_INTF_T_DVB_FE && tuner) {
link = media_create_intf_link(tuner, intf,
- MEDIA_LNK_FL_ENABLED);
+ MEDIA_LNK_FL_ENABLED |
+ MEDIA_LNK_FL_IMMUTABLE);
if (!link)
return -ENOMEM;
}
@@ -773,7 +778,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap,
*/
if (intf->type == MEDIA_INTF_T_DVB_DVR && demux) {
link = media_create_intf_link(demux, intf,
- MEDIA_LNK_FL_ENABLED);
+ MEDIA_LNK_FL_ENABLED |
+ MEDIA_LNK_FL_IMMUTABLE);
if (!link)
return -ENOMEM;
}
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