diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-v4l2.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-v4l2.c | 53 |
1 files changed, 33 insertions, 20 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c index 8b9089cc32fe..0ecad5b3c029 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c @@ -57,6 +57,7 @@ struct pvr2_v4l2_fh { struct pvr2_v4l2_fh *vprev; wait_queue_head_t wait_data; int fw_mode_flag; + int prev_input_val; }; struct pvr2_v4l2 { @@ -837,13 +838,12 @@ static int pvr2_v4l2_release(struct inode *inode, struct file *file) struct pvr2_v4l2_fh *fhp = file->private_data; struct pvr2_v4l2 *vp = fhp->vhead; struct pvr2_context *mp = fhp->vhead->channel.mc_head; + struct pvr2_hdw *hdw = fhp->channel.mc_head->hdw; pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_release"); if (fhp->rhp) { struct pvr2_stream *sp; - struct pvr2_hdw *hdw; - hdw = fhp->channel.mc_head->hdw; pvr2_hdw_set_streaming(hdw,0); sp = pvr2_ioread_get_stream(fhp->rhp); if (sp) pvr2_stream_set_callback(sp,NULL,NULL); @@ -855,6 +855,20 @@ static int pvr2_v4l2_release(struct inode *inode, struct file *file) file->private_data = NULL; pvr2_context_enter(mp); do { + /* Restore the previous input selection, if it makes sense + to do so. */ + if (fhp->dev_info->v4l_type == VFL_TYPE_RADIO) { + struct pvr2_ctrl *cp; + int pval; + cp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT); + pvr2_ctrl_get_value(cp,&pval); + /* Only restore if we're still selecting the radio */ + if (pval == PVR2_CVAL_INPUT_RADIO) { + pvr2_ctrl_set_value(cp,fhp->prev_input_val); + pvr2_hdw_commit_ctl(hdw); + } + } + if (fhp->vnext) { fhp->vnext->vprev = fhp->vprev; } else { @@ -913,17 +927,6 @@ static int pvr2_v4l2_open(struct inode *inode, struct file *file) pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr_v4l2_fh id=%p",fhp); pvr2_channel_init(&fhp->channel,vp->channel.mc_head); - /* Opening the /dev/radioX device implies a mode switch. - So execute that here. Note that you can get the - IDENTICAL effect merely by opening the normal video - device and setting the input appropriately. */ - if (dip->v4l_type == VFL_TYPE_RADIO) { - pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT), - PVR2_CVAL_INPUT_RADIO); - pvr2_hdw_commit_ctl(hdw); - } - fhp->vnext = NULL; fhp->vprev = vp->vlast; if (vp->vlast) { @@ -933,6 +936,18 @@ static int pvr2_v4l2_open(struct inode *inode, struct file *file) } vp->vlast = fhp; fhp->vhead = vp; + + /* Opening the /dev/radioX device implies a mode switch. + So execute that here. Note that you can get the + IDENTICAL effect merely by opening the normal video + device and setting the input appropriately. */ + if (dip->v4l_type == VFL_TYPE_RADIO) { + struct pvr2_ctrl *cp; + cp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT); + pvr2_ctrl_get_value(cp,&fhp->prev_input_val); + pvr2_ctrl_set_value(cp,PVR2_CVAL_INPUT_RADIO); + pvr2_hdw_commit_ctl(hdw); + } } while (0); pvr2_context_exit(vp->channel.mc_head); fhp->file = file; @@ -1117,6 +1132,11 @@ static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip, dip->config = pvr2_config_mpeg; dip->minor_type = pvr2_v4l_type_video; nr_ptr = video_nr; + if (!dip->stream) { + err("Failed to set up pvrusb2 v4l video dev" + " due to missing stream instance"); + return; + } break; case VFL_TYPE_VBI: dip->config = pvr2_config_vbi; @@ -1135,13 +1155,6 @@ static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip, return; } - /* radio device doesn 't need its own stream */ - if (!dip->stream && dip->v4l_type == VFL_TYPE_GRABBER) { - err("Failed to set up pvrusb2 v4l dev" - " due to missing stream instance"); - return; - } - memcpy(&dip->devbase,&vdev_template,sizeof(vdev_template)); dip->devbase.release = pvr2_video_device_release; |