[RFCv2 PATCH 7/8] dvb: add MEDIA_IOC_DEVICE_INFO

[Hans Verkuil]

From: Hans Verkuil <hans.verk...@cisco.com>

Support the MEDIA_IOC_DEVICE_INFO ioctl for DVB entities.

Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
---
 drivers/media/dvb-core/dmxdev.c         | 24 +++++++++++++++++++++++-
 drivers/media/dvb-core/dvb_ca_en50221.c | 11 +++++++++++
 drivers/media/dvb-core/dvb_net.c        | 11 +++++++++++
 3 files changed, 45 insertions(+), 1 deletion(-)

diff --git a/drivers/media/dvb-core/dmxdev.c b/drivers/media/dvb-core/dmxdev.c
index d0e3f9d..ab096eb 100644
--- a/drivers/media/dvb-core/dmxdev.c
+++ b/drivers/media/dvb-core/dmxdev.c
@@ -967,6 +967,17 @@ static int dvb_demux_do_ioctl(struct file *file,
                return -ERESTARTSYS;
 
        switch (cmd) {
+#if defined(CONFIG_MEDIA_CONTROLLER)
+       case MEDIA_IOC_DEVICE_INFO: {
+               struct media_device_info *info = parg;
+
+               if (dmxdev->dvbdev->entity->parent == NULL)
+                       return -ENOTTY;
+               media_device_fill_info(dmxdev->dvbdev->entity->parent, info);
+               info->entity_id = dmxdev->dvbdev->entity->id;
+               break;
+       }
+#endif
        case DMX_START:
                if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
                        mutex_unlock(&dmxdev->mutex);
@@ -1152,12 +1163,23 @@ static int dvb_dvr_do_ioctl(struct file *file,
        struct dvb_device *dvbdev = file->private_data;
        struct dmxdev *dmxdev = dvbdev->priv;
        unsigned long arg = (unsigned long)parg;
-       int ret;
+       int ret = 0;
 
        if (mutex_lock_interruptible(&dmxdev->mutex))
                return -ERESTARTSYS;
 
        switch (cmd) {
+#if defined(CONFIG_MEDIA_CONTROLLER)
+       case MEDIA_IOC_DEVICE_INFO: {
+               struct media_device_info *info = parg;
+
+               if (dvbdev->entity->parent == NULL)
+                       return -ENOTTY;
+               media_device_fill_info(dvbdev->entity->parent, info);
+               info->entity_id = dvbdev->entity->id;
+               break;
+       }
+#endif
        case DMX_SET_BUFFER_SIZE:
                ret = dvb_dvr_set_buffer_size(dmxdev, arg);
                break;
diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c 
b/drivers/media/dvb-core/dvb_ca_en50221.c
index 7293775..eca19f5 100644
--- a/drivers/media/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb-core/dvb_ca_en50221.c
@@ -1198,6 +1198,17 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file,
                return -ERESTARTSYS;
 
        switch (cmd) {
+#if defined(CONFIG_MEDIA_CONTROLLER)
+       case MEDIA_IOC_DEVICE_INFO: {
+               struct media_device_info *info = parg;
+
+               if (dvbdev->entity->parent == NULL)
+                       return -ENOTTY;
+               media_device_fill_info(dvbdev->entity->parent, info);
+               info->entity_id = dvbdev->entity->id;
+               break;
+       }
+#endif
        case CA_RESET:
                for (slot = 0; slot < ca->slot_count; slot++) {
                        mutex_lock(&ca->slot_info[slot].slot_lock);
diff --git a/drivers/media/dvb-core/dvb_net.c b/drivers/media/dvb-core/dvb_net.c
index a694fb1..1c0c889 100644
--- a/drivers/media/dvb-core/dvb_net.c
+++ b/drivers/media/dvb-core/dvb_net.c
@@ -1322,6 +1322,17 @@ static int dvb_net_do_ioctl(struct file *file,
                return -ERESTARTSYS;
 
        switch (cmd) {
+#if defined(CONFIG_MEDIA_CONTROLLER)
+       case MEDIA_IOC_DEVICE_INFO: {
+               struct media_device_info *info = parg;
+
+               if (dvbdev->entity->parent == NULL)
+                       return -ENOTTY;
+               media_device_fill_info(dvbdev->entity->parent, info);
+               info->entity_id = dvbdev->entity->id;
+               break;
+       }
+#endif
        case NET_ADD_IF:
        {
                struct dvb_net_if *dvbnetif = parg;
-- 
2.1.4

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