diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-v4l2.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-v4l2.c | 341 |
1 files changed, 238 insertions, 103 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c index 6cf17080eb49..4563b3df8a0d 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c @@ -40,7 +40,10 @@ struct pvr2_v4l2_dev { struct video_device devbase; /* MUST be first! */ struct pvr2_v4l2 *v4lp; struct pvr2_context_stream *stream; - enum pvr2_config config; + /* Information about this device: */ + enum pvr2_config config; /* Expected stream format */ + int v4l_type; /* V4L defined type for this device node */ + enum pvr2_v4l_type minor_type; /* pvr2-understood minor device type */ }; struct pvr2_v4l2_fh { @@ -54,6 +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 { @@ -63,13 +67,22 @@ struct pvr2_v4l2 { struct v4l2_prio_state prio; - /* streams */ - struct pvr2_v4l2_dev *vdev; + /* streams - Note that these must be separately, individually, + * allocated pointers. This is because the v4l core is going to + * manage their deletion - separately, individually... */ + struct pvr2_v4l2_dev *dev_video; + struct pvr2_v4l2_dev *dev_radio; }; static int video_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1}; module_param_array(video_nr, int, NULL, 0444); -MODULE_PARM_DESC(video_nr, "Offset for device's minor"); +MODULE_PARM_DESC(video_nr, "Offset for device's video dev minor"); +static int radio_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1}; +module_param_array(radio_nr, int, NULL, 0444); +MODULE_PARM_DESC(radio_nr, "Offset for device's radio dev minor"); +static int vbi_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1}; +module_param_array(vbi_nr, int, NULL, 0444); +MODULE_PARM_DESC(vbi_nr, "Offset for device's vbi dev minor"); static struct v4l2_capability pvr_capability ={ .driver = "pvrusb2", @@ -77,30 +90,11 @@ static struct v4l2_capability pvr_capability ={ .bus_info = "usb", .version = KERNEL_VERSION(0,8,0), .capabilities = (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VBI_CAPTURE | - V4L2_CAP_TUNER | V4L2_CAP_AUDIO | + V4L2_CAP_TUNER | V4L2_CAP_AUDIO | V4L2_CAP_RADIO | V4L2_CAP_READWRITE), .reserved = {0,0,0,0} }; -static struct v4l2_tuner pvr_v4l2_tuners[]= { - { - .index = 0, - .name = "TV Tuner", - .type = V4L2_TUNER_ANALOG_TV, - .capability = (V4L2_TUNER_CAP_NORM | - V4L2_TUNER_CAP_STEREO | - V4L2_TUNER_CAP_LANG1 | - V4L2_TUNER_CAP_LANG2), - .rangelow = 0, - .rangehigh = 0, - .rxsubchans = V4L2_TUNER_SUB_STEREO, - .audmode = V4L2_TUNER_MODE_STEREO, - .signal = 0, - .afc = 0, - .reserved = {0,0,0,0} - } -}; - static struct v4l2_fmtdesc pvr_fmtdesc [] = { { .index = 0, @@ -154,6 +148,18 @@ static struct v4l2_format pvr_format [] = { } }; + +static const char *get_v4l_name(int v4l_type) +{ + switch (v4l_type) { + case VFL_TYPE_GRABBER: return "video"; + case VFL_TYPE_RADIO: return "radio"; + case VFL_TYPE_VBI: return "vbi"; + default: return "?"; + } +} + + /* * pvr_ioctl() * @@ -197,6 +203,8 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, struct v4l2_capability *cap = arg; memcpy(cap, &pvr_capability, sizeof(struct v4l2_capability)); + strlcpy(cap->bus_info,pvr2_hdw_get_bus_info(hdw), + sizeof(cap->bus_info)); ret = 0; break; @@ -315,13 +323,39 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, case VIDIOC_ENUMAUDIO: { + /* pkt: FIXME: We are returning one "fake" input here + which could very well be called "whatever_we_like". + This is for apps that want to see an audio input + just to feel comfortable, as well as to test if + it can do stereo or sth. There is actually no guarantee + that the actual audio input cannot change behind the app's + back, but most applications should not mind that either. + + Hopefully, mplayer people will work with us on this (this + whole mess is to support mplayer pvr://), or Hans will come + up with a more standard way to say "we have inputs but we + don 't want you to change them independent of video" which + will sort this mess. + */ + struct v4l2_audio *vin = arg; ret = -EINVAL; + if (vin->index > 0) break; + strncpy(vin->name, "PVRUSB2 Audio",14); + vin->capability = V4L2_AUDCAP_STEREO; + ret = 0; + break; break; } case VIDIOC_G_AUDIO: { - ret = -EINVAL; + /* pkt: FIXME: see above comment (VIDIOC_ENUMAUDIO) */ + struct v4l2_audio *vin = arg; + memset(vin,0,sizeof(*vin)); + vin->index = 0; + strncpy(vin->name, "PVRUSB2 Audio",14); + vin->capability = V4L2_AUDCAP_STEREO; + ret = 0; break; } @@ -333,34 +367,11 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, case VIDIOC_G_TUNER: { struct v4l2_tuner *vt = (struct v4l2_tuner *)arg; - unsigned int status_mask; - int val; - if (vt->index !=0) break; - status_mask = pvr2_hdw_get_signal_status(hdw); + if (vt->index != 0) break; /* Only answer for the 1st tuner */ - memcpy(vt, &pvr_v4l2_tuners[vt->index], - sizeof(struct v4l2_tuner)); - - vt->signal = 0; - if (status_mask & PVR2_SIGNAL_OK) { - if (status_mask & PVR2_SIGNAL_STEREO) { - vt->rxsubchans = V4L2_TUNER_SUB_STEREO; - } else { - vt->rxsubchans = V4L2_TUNER_SUB_MONO; - } - if (status_mask & PVR2_SIGNAL_SAP) { - vt->rxsubchans |= (V4L2_TUNER_SUB_LANG1 | - V4L2_TUNER_SUB_LANG2); - } - vt->signal = 65535; - } - - val = 0; - ret = pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_AUDIOMODE), - &val); - vt->audmode = val; + pvr2_hdw_execute_tuner_poll(hdw); + ret = pvr2_hdw_get_tuner_status(hdw,vt); break; } @@ -374,14 +385,40 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, ret = pvr2_ctrl_set_value( pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_AUDIOMODE), vt->audmode); + break; } case VIDIOC_S_FREQUENCY: { const struct v4l2_frequency *vf = (struct v4l2_frequency *)arg; + unsigned long fv; + struct v4l2_tuner vt; + int cur_input; + struct pvr2_ctrl *ctrlp; + ret = pvr2_hdw_get_tuner_status(hdw,&vt); + if (ret != 0) break; + ctrlp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT); + ret = pvr2_ctrl_get_value(ctrlp,&cur_input); + if (ret != 0) break; + if (vf->type == V4L2_TUNER_RADIO) { + if (cur_input != PVR2_CVAL_INPUT_RADIO) { + pvr2_ctrl_set_value(ctrlp, + PVR2_CVAL_INPUT_RADIO); + } + } else { + if (cur_input == PVR2_CVAL_INPUT_RADIO) { + pvr2_ctrl_set_value(ctrlp, + PVR2_CVAL_INPUT_TV); + } + } + fv = vf->frequency; + if (vt.capability & V4L2_TUNER_CAP_LOW) { + fv = (fv * 125) / 2; + } else { + fv = fv * 62500; + } ret = pvr2_ctrl_set_value( - pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY), - vf->frequency * 62500); + pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),fv); break; } @@ -389,10 +426,27 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, { struct v4l2_frequency *vf = (struct v4l2_frequency *)arg; int val = 0; + int cur_input; + struct v4l2_tuner vt; + ret = pvr2_hdw_get_tuner_status(hdw,&vt); + if (ret != 0) break; ret = pvr2_ctrl_get_value( pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY), &val); - val /= 62500; + if (ret != 0) break; + pvr2_ctrl_get_value( + pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT), + &cur_input); + if (cur_input == PVR2_CVAL_INPUT_RADIO) { + vf->type = V4L2_TUNER_RADIO; + } else { + vf->type = V4L2_TUNER_ANALOG_TV; + } + if (vt.capability & V4L2_TUNER_CAP_LOW) { + val = (val * 2) / 125; + } else { + val /= 62500; + } vf->frequency = val; break; } @@ -449,7 +503,7 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, ret = 0; switch(vf->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: { - int lmin,lmax; + int lmin,lmax,ldef; struct pvr2_ctrl *hcp,*vcp; int h = vf->fmt.pix.height; int w = vf->fmt.pix.width; @@ -458,14 +512,20 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, lmin = pvr2_ctrl_get_min(hcp); lmax = pvr2_ctrl_get_max(hcp); - if (w < lmin) { + ldef = pvr2_ctrl_get_def(hcp); + if (w == -1) { + w = ldef; + } else if (w < lmin) { w = lmin; } else if (w > lmax) { w = lmax; } lmin = pvr2_ctrl_get_min(vcp); lmax = pvr2_ctrl_get_max(vcp); - if (h < lmin) { + ldef = pvr2_ctrl_get_def(vcp); + if (h == -1) { + h = ldef; + } else if (h < lmin) { h = lmin; } else if (h > lmax) { h = lmax; @@ -494,6 +554,13 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, case VIDIOC_STREAMON: { + if (!fh->dev_info->stream) { + /* No stream defined for this node. This means + that we're not currently allowed to stream from + this node. */ + ret = -EPERM; + break; + } ret = pvr2_hdw_set_stream_type(hdw,dev_info->config); if (ret < 0) return ret; ret = pvr2_hdw_set_streaming(hdw,!0); @@ -502,6 +569,13 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, case VIDIOC_STREAMOFF: { + if (!fh->dev_info->stream) { + /* No stream defined for this node. This means + that we're not currently allowed to stream from + this node. */ + ret = -EPERM; + break; + } ret = pvr2_hdw_set_streaming(hdw,0); break; } @@ -599,6 +673,7 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, struct v4l2_ext_control *ctrl; unsigned int idx; int val; + ret = 0; for (idx = 0; idx < ctls->count; idx++) { ctrl = ctls->controls + idx; ret = pvr2_ctrl_get_value( @@ -621,6 +696,7 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, (struct v4l2_ext_controls *)arg; struct v4l2_ext_control *ctrl; unsigned int idx; + ret = 0; for (idx = 0; idx < ctls->count; idx++) { ctrl = ctls->controls + idx; ret = pvr2_ctrl_set_value( @@ -643,6 +719,7 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, unsigned int idx; /* For the moment just validate that the requested control actually exists. */ + ret = 0; for (idx = 0; idx < ctls->count; idx++) { ctrl = ctls->controls + idx; pctl = pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id); @@ -662,16 +739,16 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, break; } #ifdef CONFIG_VIDEO_ADV_DEBUG - case VIDIOC_INT_G_REGISTER: - case VIDIOC_INT_S_REGISTER: + case VIDIOC_DBG_S_REGISTER: + case VIDIOC_DBG_G_REGISTER: { - u32 val; + u64 val; struct v4l2_register *req = (struct v4l2_register *)arg; - if (cmd == VIDIOC_INT_S_REGISTER) val = req->val; + if (cmd == VIDIOC_DBG_S_REGISTER) val = req->val; ret = pvr2_hdw_register_access( - hdw,req->i2c_id,req->reg, - cmd == VIDIOC_INT_S_REGISTER,&val); - if (cmd == VIDIOC_INT_G_REGISTER) req->val = val; + hdw,req->match_type,req->match_chip,req->reg, + cmd == VIDIOC_DBG_S_REGISTER,&val); + if (cmd == VIDIOC_DBG_G_REGISTER) req->val = val; break; } #endif @@ -707,8 +784,12 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip) { - printk(KERN_INFO "pvrusb2: unregistering device video%d [%s]\n", - dip->devbase.minor,pvr2_config_get_name(dip->config)); + int minor_id = dip->devbase.minor; + struct pvr2_hdw *hdw = dip->v4lp->channel.mc_head->hdw; + enum pvr2_config cfg = dip->config; + int v4l_type = dip->v4l_type; + + pvr2_hdw_v4l_store_minor_number(hdw,dip->minor_type,-1); /* Paranoia */ dip->v4lp = NULL; @@ -717,13 +798,24 @@ static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip) /* Actual deallocation happens later when all internal references are gone. */ video_unregister_device(&dip->devbase); + + printk(KERN_INFO "pvrusb2: unregistered device %s%u [%s]\n", + get_v4l_name(v4l_type),minor_id & 0x1f, + pvr2_config_get_name(cfg)); + } static void pvr2_v4l2_destroy_no_lock(struct pvr2_v4l2 *vp) { - pvr2_hdw_v4l_store_minor_number(vp->channel.mc_head->hdw,-1); - pvr2_v4l2_dev_destroy(vp->vdev); + if (vp->dev_video) { + pvr2_v4l2_dev_destroy(vp->dev_video); + vp->dev_video = NULL; + } + if (vp->dev_radio) { + pvr2_v4l2_dev_destroy(vp->dev_radio); + vp->dev_radio = NULL; + } pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_v4l2 id=%p",vp); pvr2_channel_done(&vp->channel); @@ -766,23 +858,37 @@ 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); pvr2_ioread_destroy(fhp->rhp); fhp->rhp = NULL; } + v4l2_prio_close(&vp->prio, &fhp->prio); 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 { @@ -828,11 +934,10 @@ static int pvr2_v4l2_open(struct inode *inode, struct file *file) return -EIO; } - fhp = kmalloc(sizeof(*fhp),GFP_KERNEL); + fhp = kzalloc(sizeof(*fhp),GFP_KERNEL); if (!fhp) { return -ENOMEM; } - memset(fhp,0,sizeof(*fhp)); init_waitqueue_head(&fhp->wait_data); fhp->dev_info = dip; @@ -840,6 +945,7 @@ static int pvr2_v4l2_open(struct inode *inode, struct file *file) pvr2_context_enter(vp->channel.mc_head); do { pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr_v4l2_fh id=%p",fhp); pvr2_channel_init(&fhp->channel,vp->channel.mc_head); + fhp->vnext = NULL; fhp->vprev = vp->vlast; if (vp->vlast) { @@ -849,6 +955,18 @@ 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; @@ -873,6 +991,12 @@ static int pvr2_v4l2_iosetup(struct pvr2_v4l2_fh *fh) struct pvr2_hdw *hdw; if (fh->rhp) return 0; + if (!fh->dev_info->stream) { + /* No stream defined for this node. This means that we're + not currently allowed to stream from this node. */ + return -EPERM; + } + /* First read() attempt. Try to claim the stream and start it... */ if ((ret = pvr2_channel_claim_stream(&fh->channel, @@ -1012,25 +1136,37 @@ static struct video_device vdev_template = { static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip, struct pvr2_v4l2 *vp, - enum pvr2_config cfg) + int v4l_type) { int mindevnum; int unit_number; - int v4l_type; + int *nr_ptr = NULL; dip->v4lp = vp; - dip->config = cfg; - switch (cfg) { - case pvr2_config_mpeg: - v4l_type = VFL_TYPE_GRABBER; + dip->v4l_type = v4l_type; + switch (v4l_type) { + case VFL_TYPE_GRABBER: dip->stream = &vp->channel.mc_head->video_stream; + 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 pvr2_config_vbi: - v4l_type = VFL_TYPE_VBI; + case VFL_TYPE_VBI: + dip->config = pvr2_config_vbi; + dip->minor_type = pvr2_v4l_type_vbi; + nr_ptr = vbi_nr; break; - case pvr2_config_radio: - v4l_type = VFL_TYPE_RADIO; + case VFL_TYPE_RADIO: + dip->stream = &vp->channel.mc_head->video_stream; + dip->config = pvr2_config_mpeg; + dip->minor_type = pvr2_v4l_type_radio; + nr_ptr = radio_nr; break; default: /* Bail out (this should be impossible) */ @@ -1039,30 +1175,27 @@ static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip, return; } - if (!dip->stream) { - 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; mindevnum = -1; unit_number = pvr2_hdw_get_unit_number(vp->channel.mc_head->hdw); - if ((unit_number >= 0) && (unit_number < PVR_NUM)) { - mindevnum = video_nr[unit_number]; + if (nr_ptr && (unit_number >= 0) && (unit_number < PVR_NUM)) { + mindevnum = nr_ptr[unit_number]; } - if ((video_register_device(&dip->devbase, v4l_type, mindevnum) < 0) && - (video_register_device(&dip->devbase, v4l_type, -1) < 0)) { - err("Failed to register pvrusb2 v4l video device"); - } else { - printk(KERN_INFO "pvrusb2: registered device video%d [%s]\n", - dip->devbase.minor,pvr2_config_get_name(dip->config)); + if ((video_register_device(&dip->devbase, + dip->v4l_type, mindevnum) < 0) && + (video_register_device(&dip->devbase, + dip->v4l_type, -1) < 0)) { + err("Failed to register pvrusb2 v4l device"); } + printk(KERN_INFO "pvrusb2: registered device %s%u [%s]\n", + get_v4l_name(dip->v4l_type),dip->devbase.minor & 0x1f, + pvr2_config_get_name(dip->config)); + pvr2_hdw_v4l_store_minor_number(vp->channel.mc_head->hdw, - dip->devbase.minor); + dip->minor_type,dip->devbase.minor); } @@ -1070,22 +1203,24 @@ struct pvr2_v4l2 *pvr2_v4l2_create(struct pvr2_context *mnp) { struct pvr2_v4l2 *vp; - vp = kmalloc(sizeof(*vp),GFP_KERNEL); + vp = kzalloc(sizeof(*vp),GFP_KERNEL); if (!vp) return vp; - memset(vp,0,sizeof(*vp)); - vp->vdev = kmalloc(sizeof(*vp->vdev),GFP_KERNEL); - if (!vp->vdev) { + vp->dev_video = kzalloc(sizeof(*vp->dev_video),GFP_KERNEL); + vp->dev_radio = kzalloc(sizeof(*vp->dev_radio),GFP_KERNEL); + if (!(vp->dev_video && vp->dev_radio)) { + kfree(vp->dev_video); + kfree(vp->dev_radio); kfree(vp); return NULL; } - memset(vp->vdev,0,sizeof(*vp->vdev)); pvr2_channel_init(&vp->channel,mnp); pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr2_v4l2 id=%p",vp); vp->channel.check_func = pvr2_v4l2_internal_check; /* register streams */ - pvr2_v4l2_dev_init(vp->vdev,vp,pvr2_config_mpeg); + pvr2_v4l2_dev_init(vp->dev_video,vp,VFL_TYPE_GRABBER); + pvr2_v4l2_dev_init(vp->dev_radio,vp,VFL_TYPE_RADIO); return vp; } |