| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * |
| * Copyright (C) 2005 Mike Isely <isely@pobox.com> |
| * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/slab.h> |
| #include "pvrusb2-context.h" |
| #include "pvrusb2-hdw.h" |
| #include "pvrusb2.h" |
| #include "pvrusb2-debug.h" |
| #include "pvrusb2-v4l2.h" |
| #include "pvrusb2-ioread.h" |
| #include <linux/videodev2.h> |
| #include <linux/module.h> |
| #include <media/v4l2-dev.h> |
| #include <media/v4l2-device.h> |
| #include <media/v4l2-fh.h> |
| #include <media/v4l2-common.h> |
| #include <media/v4l2-ioctl.h> |
| |
| struct pvr2_v4l2_dev; |
| struct pvr2_v4l2_fh; |
| struct pvr2_v4l2; |
| |
| struct pvr2_v4l2_dev { |
| struct video_device devbase; /* MUST be first! */ |
| struct pvr2_v4l2 *v4lp; |
| struct pvr2_context_stream *stream; |
| /* 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 { |
| struct v4l2_fh fh; |
| struct pvr2_channel channel; |
| struct pvr2_v4l2_dev *pdi; |
| struct pvr2_ioread *rhp; |
| struct file *file; |
| wait_queue_head_t wait_data; |
| int fw_mode_flag; |
| /* Map contiguous ordinal value to input id */ |
| unsigned char *input_map; |
| unsigned int input_cnt; |
| }; |
| |
| struct pvr2_v4l2 { |
| struct pvr2_channel channel; |
| |
| /* 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 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"); |
| |
| #define PVR_FORMAT_PIX 0 |
| #define PVR_FORMAT_VBI 1 |
| |
| static struct v4l2_format pvr_format [] = { |
| [PVR_FORMAT_PIX] = { |
| .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, |
| .fmt = { |
| .pix = { |
| .width = 720, |
| .height = 576, |
| .pixelformat = V4L2_PIX_FMT_MPEG, |
| .field = V4L2_FIELD_INTERLACED, |
| /* FIXME : Don't know what to put here... */ |
| .sizeimage = 32 * 1024, |
| } |
| } |
| }, |
| [PVR_FORMAT_VBI] = { |
| .type = V4L2_BUF_TYPE_VBI_CAPTURE, |
| .fmt = { |
| .vbi = { |
| .sampling_rate = 27000000, |
| .offset = 248, |
| .samples_per_line = 1443, |
| .sample_format = V4L2_PIX_FMT_GREY, |
| .start = { 0, 0 }, |
| .count = { 0, 0 }, |
| .flags = 0, |
| } |
| } |
| } |
| }; |
| |
| |
| |
| /* |
| * This is part of Video 4 Linux API. These procedures handle ioctl() calls. |
| */ |
| static int pvr2_querycap(struct file *file, void *priv, struct v4l2_capability *cap) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| |
| strscpy(cap->driver, "pvrusb2", sizeof(cap->driver)); |
| strscpy(cap->bus_info, pvr2_hdw_get_bus_info(hdw), |
| sizeof(cap->bus_info)); |
| strscpy(cap->card, pvr2_hdw_get_desc(hdw), sizeof(cap->card)); |
| cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER | |
| V4L2_CAP_AUDIO | V4L2_CAP_RADIO | |
| V4L2_CAP_READWRITE | V4L2_CAP_DEVICE_CAPS; |
| return 0; |
| } |
| |
| static int pvr2_g_std(struct file *file, void *priv, v4l2_std_id *std) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| int val = 0; |
| int ret; |
| |
| ret = pvr2_ctrl_get_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), &val); |
| *std = val; |
| return ret; |
| } |
| |
| static int pvr2_s_std(struct file *file, void *priv, v4l2_std_id std) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| int ret; |
| |
| ret = pvr2_ctrl_set_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), std); |
| pvr2_hdw_commit_ctl(hdw); |
| return ret; |
| } |
| |
| static int pvr2_querystd(struct file *file, void *priv, v4l2_std_id *std) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| int val = 0; |
| int ret; |
| |
| ret = pvr2_ctrl_get_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDDETECT), &val); |
| *std = val; |
| return ret; |
| } |
| |
| static int pvr2_enum_input(struct file *file, void *priv, struct v4l2_input *vi) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| struct pvr2_ctrl *cptr; |
| struct v4l2_input tmp; |
| unsigned int cnt; |
| int val; |
| |
| cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT); |
| |
| memset(&tmp, 0, sizeof(tmp)); |
| tmp.index = vi->index; |
| if (vi->index >= fh->input_cnt) |
| return -EINVAL; |
| val = fh->input_map[vi->index]; |
| switch (val) { |
| case PVR2_CVAL_INPUT_TV: |
| case PVR2_CVAL_INPUT_DTV: |
| case PVR2_CVAL_INPUT_RADIO: |
| tmp.type = V4L2_INPUT_TYPE_TUNER; |
| break; |
| case PVR2_CVAL_INPUT_SVIDEO: |
| case PVR2_CVAL_INPUT_COMPOSITE: |
| tmp.type = V4L2_INPUT_TYPE_CAMERA; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| cnt = 0; |
| pvr2_ctrl_get_valname(cptr, val, |
| tmp.name, sizeof(tmp.name) - 1, &cnt); |
| tmp.name[cnt] = 0; |
| |
| /* Don't bother with audioset, since this driver currently |
| always switches the audio whenever the video is |
| switched. */ |
| |
| /* Handling std is a tougher problem. It doesn't make |
| sense in cases where a device might be multi-standard. |
| We could just copy out the current value for the |
| standard, but it can change over time. For now just |
| leave it zero. */ |
| *vi = tmp; |
| return 0; |
| } |
| |
| static int pvr2_g_input(struct file *file, void *priv, unsigned int *i) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| unsigned int idx; |
| struct pvr2_ctrl *cptr; |
| int val; |
| int ret; |
| |
| cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT); |
| val = 0; |
| ret = pvr2_ctrl_get_value(cptr, &val); |
| *i = 0; |
| for (idx = 0; idx < fh->input_cnt; idx++) { |
| if (fh->input_map[idx] == val) { |
| *i = idx; |
| break; |
| } |
| } |
| return ret; |
| } |
| |
| static int pvr2_s_input(struct file *file, void *priv, unsigned int inp) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| int ret; |
| |
| if (inp >= fh->input_cnt) |
| return -EINVAL; |
| ret = pvr2_ctrl_set_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT), |
| fh->input_map[inp]); |
| pvr2_hdw_commit_ctl(hdw); |
| return ret; |
| } |
| |
| static int pvr2_enumaudio(struct file *file, void *priv, struct v4l2_audio *vin) |
| { |
| /* 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. |
| */ |
| |
| if (vin->index > 0) |
| return -EINVAL; |
| strscpy(vin->name, "PVRUSB2 Audio", sizeof(vin->name)); |
| vin->capability = V4L2_AUDCAP_STEREO; |
| return 0; |
| } |
| |
| static int pvr2_g_audio(struct file *file, void *priv, struct v4l2_audio *vin) |
| { |
| /* pkt: FIXME: see above comment (VIDIOC_ENUMAUDIO) */ |
| vin->index = 0; |
| strscpy(vin->name, "PVRUSB2 Audio", sizeof(vin->name)); |
| vin->capability = V4L2_AUDCAP_STEREO; |
| return 0; |
| } |
| |
| static int pvr2_s_audio(struct file *file, void *priv, const struct v4l2_audio *vout) |
| { |
| if (vout->index) |
| return -EINVAL; |
| return 0; |
| } |
| |
| static int pvr2_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| |
| if (vt->index != 0) |
| return -EINVAL; /* Only answer for the 1st tuner */ |
| |
| pvr2_hdw_execute_tuner_poll(hdw); |
| return pvr2_hdw_get_tuner_status(hdw, vt); |
| } |
| |
| static int pvr2_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| int ret; |
| |
| if (vt->index != 0) |
| return -EINVAL; |
| |
| ret = pvr2_ctrl_set_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_AUDIOMODE), |
| vt->audmode); |
| pvr2_hdw_commit_ctl(hdw); |
| return ret; |
| } |
| |
| static int pvr2_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *vf) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| unsigned long fv; |
| struct v4l2_tuner vt; |
| int cur_input; |
| struct pvr2_ctrl *ctrlp; |
| int ret; |
| |
| ret = pvr2_hdw_get_tuner_status(hdw, &vt); |
| if (ret != 0) |
| return ret; |
| ctrlp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT); |
| ret = pvr2_ctrl_get_value(ctrlp, &cur_input); |
| if (ret != 0) |
| return ret; |
| 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),fv); |
| pvr2_hdw_commit_ctl(hdw); |
| return ret; |
| } |
| |
| static int pvr2_g_frequency(struct file *file, void *priv, struct v4l2_frequency *vf) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| int val = 0; |
| int cur_input; |
| struct v4l2_tuner vt; |
| int ret; |
| |
| ret = pvr2_hdw_get_tuner_status(hdw, &vt); |
| if (ret != 0) |
| return ret; |
| ret = pvr2_ctrl_get_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_FREQUENCY), |
| &val); |
| if (ret != 0) |
| return ret; |
| 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; |
| return 0; |
| } |
| |
| static int pvr2_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *fd) |
| { |
| /* Only one format is supported: MPEG. */ |
| if (fd->index) |
| return -EINVAL; |
| |
| fd->pixelformat = V4L2_PIX_FMT_MPEG; |
| return 0; |
| } |
| |
| static int pvr2_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| int val; |
| |
| memcpy(vf, &pvr_format[PVR_FORMAT_PIX], sizeof(struct v4l2_format)); |
| val = 0; |
| pvr2_ctrl_get_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES), |
| &val); |
| vf->fmt.pix.width = val; |
| val = 0; |
| pvr2_ctrl_get_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES), |
| &val); |
| vf->fmt.pix.height = val; |
| return 0; |
| } |
| |
| static int pvr2_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| int lmin, lmax, ldef; |
| struct pvr2_ctrl *hcp, *vcp; |
| int h = vf->fmt.pix.height; |
| int w = vf->fmt.pix.width; |
| |
| hcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES); |
| vcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES); |
| |
| lmin = pvr2_ctrl_get_min(hcp); |
| lmax = pvr2_ctrl_get_max(hcp); |
| pvr2_ctrl_get_def(hcp, &ldef); |
| 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); |
| pvr2_ctrl_get_def(vcp, &ldef); |
| if (h == -1) |
| h = ldef; |
| else if (h < lmin) |
| h = lmin; |
| else if (h > lmax) |
| h = lmax; |
| |
| memcpy(vf, &pvr_format[PVR_FORMAT_PIX], |
| sizeof(struct v4l2_format)); |
| vf->fmt.pix.width = w; |
| vf->fmt.pix.height = h; |
| return 0; |
| } |
| |
| static int pvr2_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| struct pvr2_ctrl *hcp, *vcp; |
| int ret = pvr2_try_fmt_vid_cap(file, fh, vf); |
| |
| if (ret) |
| return ret; |
| hcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES); |
| vcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES); |
| pvr2_ctrl_set_value(hcp, vf->fmt.pix.width); |
| pvr2_ctrl_set_value(vcp, vf->fmt.pix.height); |
| pvr2_hdw_commit_ctl(hdw); |
| return 0; |
| } |
| |
| static int pvr2_streamon(struct file *file, void *priv, enum v4l2_buf_type i) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| struct pvr2_v4l2_dev *pdi = fh->pdi; |
| int ret; |
| |
| if (!fh->pdi->stream) { |
| /* No stream defined for this node. This means |
| that we're not currently allowed to stream from |
| this node. */ |
| return -EPERM; |
| } |
| ret = pvr2_hdw_set_stream_type(hdw, pdi->config); |
| if (ret < 0) |
| return ret; |
| return pvr2_hdw_set_streaming(hdw, !0); |
| } |
| |
| static int pvr2_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| |
| if (!fh->pdi->stream) { |
| /* No stream defined for this node. This means |
| that we're not currently allowed to stream from |
| this node. */ |
| return -EPERM; |
| } |
| return pvr2_hdw_set_streaming(hdw, 0); |
| } |
| |
| static int pvr2_queryctrl(struct file *file, void *priv, |
| struct v4l2_queryctrl *vc) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| struct pvr2_ctrl *cptr; |
| int val; |
| |
| if (vc->id & V4L2_CTRL_FLAG_NEXT_CTRL) { |
| cptr = pvr2_hdw_get_ctrl_nextv4l( |
| hdw, (vc->id & ~V4L2_CTRL_FLAG_NEXT_CTRL)); |
| if (cptr) |
| vc->id = pvr2_ctrl_get_v4lid(cptr); |
| } else { |
| cptr = pvr2_hdw_get_ctrl_v4l(hdw, vc->id); |
| } |
| if (!cptr) { |
| pvr2_trace(PVR2_TRACE_V4LIOCTL, |
| "QUERYCTRL id=0x%x not implemented here", |
| vc->id); |
| return -EINVAL; |
| } |
| |
| pvr2_trace(PVR2_TRACE_V4LIOCTL, |
| "QUERYCTRL id=0x%x mapping name=%s (%s)", |
| vc->id, pvr2_ctrl_get_name(cptr), |
| pvr2_ctrl_get_desc(cptr)); |
| strscpy(vc->name, pvr2_ctrl_get_desc(cptr), sizeof(vc->name)); |
| vc->flags = pvr2_ctrl_get_v4lflags(cptr); |
| pvr2_ctrl_get_def(cptr, &val); |
| vc->default_value = val; |
| switch (pvr2_ctrl_get_type(cptr)) { |
| case pvr2_ctl_enum: |
| vc->type = V4L2_CTRL_TYPE_MENU; |
| vc->minimum = 0; |
| vc->maximum = pvr2_ctrl_get_cnt(cptr) - 1; |
| vc->step = 1; |
| break; |
| case pvr2_ctl_bool: |
| vc->type = V4L2_CTRL_TYPE_BOOLEAN; |
| vc->minimum = 0; |
| vc->maximum = 1; |
| vc->step = 1; |
| break; |
| case pvr2_ctl_int: |
| vc->type = V4L2_CTRL_TYPE_INTEGER; |
| vc->minimum = pvr2_ctrl_get_min(cptr); |
| vc->maximum = pvr2_ctrl_get_max(cptr); |
| vc->step = 1; |
| break; |
| default: |
| pvr2_trace(PVR2_TRACE_V4LIOCTL, |
| "QUERYCTRL id=0x%x name=%s not mappable", |
| vc->id, pvr2_ctrl_get_name(cptr)); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static int pvr2_querymenu(struct file *file, void *priv, struct v4l2_querymenu *vm) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| unsigned int cnt = 0; |
| int ret; |
| |
| ret = pvr2_ctrl_get_valname(pvr2_hdw_get_ctrl_v4l(hdw, vm->id), |
| vm->index, |
| vm->name, sizeof(vm->name) - 1, |
| &cnt); |
| vm->name[cnt] = 0; |
| return ret; |
| } |
| |
| static int pvr2_g_ctrl(struct file *file, void *priv, struct v4l2_control *vc) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| int val = 0; |
| int ret; |
| |
| ret = pvr2_ctrl_get_value(pvr2_hdw_get_ctrl_v4l(hdw, vc->id), |
| &val); |
| vc->value = val; |
| return ret; |
| } |
| |
| static int pvr2_s_ctrl(struct file *file, void *priv, struct v4l2_control *vc) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| int ret; |
| |
| ret = pvr2_ctrl_set_value(pvr2_hdw_get_ctrl_v4l(hdw, vc->id), |
| vc->value); |
| pvr2_hdw_commit_ctl(hdw); |
| return ret; |
| } |
| |
| static int pvr2_g_ext_ctrls(struct file *file, void *priv, |
| struct v4l2_ext_controls *ctls) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| struct v4l2_ext_control *ctrl; |
| struct pvr2_ctrl *cptr; |
| unsigned int idx; |
| int val; |
| int ret; |
| |
| ret = 0; |
| for (idx = 0; idx < ctls->count; idx++) { |
| ctrl = ctls->controls + idx; |
| cptr = pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id); |
| if (cptr) { |
| if (ctls->which == V4L2_CTRL_WHICH_DEF_VAL) |
| pvr2_ctrl_get_def(cptr, &val); |
| else |
| ret = pvr2_ctrl_get_value(cptr, &val); |
| } else |
| ret = -EINVAL; |
| |
| if (ret) { |
| ctls->error_idx = idx; |
| return ret; |
| } |
| /* Ensure that if read as a 64 bit value, the user |
| will still get a hopefully sane value */ |
| ctrl->value64 = 0; |
| ctrl->value = val; |
| } |
| return 0; |
| } |
| |
| static int pvr2_s_ext_ctrls(struct file *file, void *priv, |
| struct v4l2_ext_controls *ctls) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| struct v4l2_ext_control *ctrl; |
| unsigned int idx; |
| int ret; |
| |
| ret = 0; |
| for (idx = 0; idx < ctls->count; idx++) { |
| ctrl = ctls->controls + idx; |
| ret = pvr2_ctrl_set_value( |
| pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id), |
| ctrl->value); |
| if (ret) { |
| ctls->error_idx = idx; |
| goto commit; |
| } |
| } |
| commit: |
| pvr2_hdw_commit_ctl(hdw); |
| return ret; |
| } |
| |
| static int pvr2_try_ext_ctrls(struct file *file, void *priv, |
| struct v4l2_ext_controls *ctls) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| struct v4l2_ext_control *ctrl; |
| struct pvr2_ctrl *pctl; |
| unsigned int idx; |
| |
| /* For the moment just validate that the requested control |
| actually exists. */ |
| for (idx = 0; idx < ctls->count; idx++) { |
| ctrl = ctls->controls + idx; |
| pctl = pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id); |
| if (!pctl) { |
| ctls->error_idx = idx; |
| return -EINVAL; |
| } |
| } |
| return 0; |
| } |
| |
| static int pvr2_g_pixelaspect(struct file *file, void *priv, |
| int type, struct v4l2_fract *f) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| struct v4l2_cropcap cap = { .type = type }; |
| int ret; |
| |
| if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| return -EINVAL; |
| ret = pvr2_hdw_get_cropcap(hdw, &cap); |
| if (!ret) |
| *f = cap.pixelaspect; |
| return ret; |
| } |
| |
| static int pvr2_g_selection(struct file *file, void *priv, |
| struct v4l2_selection *sel) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| struct v4l2_cropcap cap; |
| int val = 0; |
| int ret; |
| |
| if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| return -EINVAL; |
| |
| cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| |
| switch (sel->target) { |
| case V4L2_SEL_TGT_CROP: |
| ret = pvr2_ctrl_get_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), &val); |
| if (ret != 0) |
| return -EINVAL; |
| sel->r.left = val; |
| ret = pvr2_ctrl_get_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), &val); |
| if (ret != 0) |
| return -EINVAL; |
| sel->r.top = val; |
| ret = pvr2_ctrl_get_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), &val); |
| if (ret != 0) |
| return -EINVAL; |
| sel->r.width = val; |
| ret = pvr2_ctrl_get_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), &val); |
| if (ret != 0) |
| return -EINVAL; |
| sel->r.height = val; |
| break; |
| case V4L2_SEL_TGT_CROP_DEFAULT: |
| ret = pvr2_hdw_get_cropcap(hdw, &cap); |
| sel->r = cap.defrect; |
| break; |
| case V4L2_SEL_TGT_CROP_BOUNDS: |
| ret = pvr2_hdw_get_cropcap(hdw, &cap); |
| sel->r = cap.bounds; |
| break; |
| default: |
| return -EINVAL; |
| } |
| return ret; |
| } |
| |
| static int pvr2_s_selection(struct file *file, void *priv, |
| struct v4l2_selection *sel) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| int ret; |
| |
| if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| sel->target != V4L2_SEL_TGT_CROP) |
| return -EINVAL; |
| ret = pvr2_ctrl_set_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), |
| sel->r.left); |
| if (ret != 0) |
| goto commit; |
| ret = pvr2_ctrl_set_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), |
| sel->r.top); |
| if (ret != 0) |
| goto commit; |
| ret = pvr2_ctrl_set_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), |
| sel->r.width); |
| if (ret != 0) |
| goto commit; |
| ret = pvr2_ctrl_set_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), |
| sel->r.height); |
| commit: |
| pvr2_hdw_commit_ctl(hdw); |
| return ret; |
| } |
| |
| static int pvr2_log_status(struct file *file, void *priv) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| |
| pvr2_hdw_trigger_module_log(hdw); |
| return 0; |
| } |
| |
| static const struct v4l2_ioctl_ops pvr2_ioctl_ops = { |
| .vidioc_querycap = pvr2_querycap, |
| .vidioc_s_audio = pvr2_s_audio, |
| .vidioc_g_audio = pvr2_g_audio, |
| .vidioc_enumaudio = pvr2_enumaudio, |
| .vidioc_enum_input = pvr2_enum_input, |
| .vidioc_g_pixelaspect = pvr2_g_pixelaspect, |
| .vidioc_s_selection = pvr2_s_selection, |
| .vidioc_g_selection = pvr2_g_selection, |
| .vidioc_g_input = pvr2_g_input, |
| .vidioc_s_input = pvr2_s_input, |
| .vidioc_g_frequency = pvr2_g_frequency, |
| .vidioc_s_frequency = pvr2_s_frequency, |
| .vidioc_s_tuner = pvr2_s_tuner, |
| .vidioc_g_tuner = pvr2_g_tuner, |
| .vidioc_g_std = pvr2_g_std, |
| .vidioc_s_std = pvr2_s_std, |
| .vidioc_querystd = pvr2_querystd, |
| .vidioc_log_status = pvr2_log_status, |
| .vidioc_enum_fmt_vid_cap = pvr2_enum_fmt_vid_cap, |
| .vidioc_g_fmt_vid_cap = pvr2_g_fmt_vid_cap, |
| .vidioc_s_fmt_vid_cap = pvr2_s_fmt_vid_cap, |
| .vidioc_try_fmt_vid_cap = pvr2_try_fmt_vid_cap, |
| .vidioc_streamon = pvr2_streamon, |
| .vidioc_streamoff = pvr2_streamoff, |
| .vidioc_queryctrl = pvr2_queryctrl, |
| .vidioc_querymenu = pvr2_querymenu, |
| .vidioc_g_ctrl = pvr2_g_ctrl, |
| .vidioc_s_ctrl = pvr2_s_ctrl, |
| .vidioc_g_ext_ctrls = pvr2_g_ext_ctrls, |
| .vidioc_s_ext_ctrls = pvr2_s_ext_ctrls, |
| .vidioc_try_ext_ctrls = pvr2_try_ext_ctrls, |
| }; |
| |
| static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip) |
| { |
| struct pvr2_hdw *hdw = dip->v4lp->channel.mc_head->hdw; |
| enum pvr2_config cfg = dip->config; |
| char msg[80]; |
| unsigned int mcnt; |
| |
| /* Construct the unregistration message *before* we actually |
| perform the unregistration step. By doing it this way we don't |
| have to worry about potentially touching deleted resources. */ |
| mcnt = scnprintf(msg, sizeof(msg) - 1, |
| "pvrusb2: unregistered device %s [%s]", |
| video_device_node_name(&dip->devbase), |
| pvr2_config_get_name(cfg)); |
| msg[mcnt] = 0; |
| |
| pvr2_hdw_v4l_store_minor_number(hdw,dip->minor_type,-1); |
| |
| /* Paranoia */ |
| dip->v4lp = NULL; |
| dip->stream = NULL; |
| |
| /* Actual deallocation happens later when all internal references |
| are gone. */ |
| video_unregister_device(&dip->devbase); |
| |
| pr_info("%s\n", msg); |
| |
| } |
| |
| |
| static void pvr2_v4l2_dev_disassociate_parent(struct pvr2_v4l2_dev *dip) |
| { |
| if (!dip) return; |
| if (!dip->devbase.v4l2_dev->dev) return; |
| dip->devbase.v4l2_dev->dev = NULL; |
| device_move(&dip->devbase.dev, NULL, DPM_ORDER_NONE); |
| } |
| |
| |
| static void pvr2_v4l2_destroy_no_lock(struct pvr2_v4l2 *vp) |
| { |
| 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); |
| kfree(vp); |
| } |
| |
| |
| static void pvr2_video_device_release(struct video_device *vdev) |
| { |
| struct pvr2_v4l2_dev *dev; |
| dev = container_of(vdev,struct pvr2_v4l2_dev,devbase); |
| kfree(dev); |
| } |
| |
| |
| static void pvr2_v4l2_internal_check(struct pvr2_channel *chp) |
| { |
| struct pvr2_v4l2 *vp; |
| vp = container_of(chp,struct pvr2_v4l2,channel); |
| if (!vp->channel.mc_head->disconnect_flag) return; |
| pvr2_v4l2_dev_disassociate_parent(vp->dev_video); |
| pvr2_v4l2_dev_disassociate_parent(vp->dev_radio); |
| if (!list_empty(&vp->dev_video->devbase.fh_list) || |
| (vp->dev_radio && |
| !list_empty(&vp->dev_radio->devbase.fh_list))) { |
| pvr2_trace(PVR2_TRACE_STRUCT, |
| "pvr2_v4l2 internal_check exit-empty id=%p", vp); |
| return; |
| } |
| pvr2_v4l2_destroy_no_lock(vp); |
| } |
| |
| |
| static int pvr2_v4l2_release(struct file *file) |
| { |
| struct pvr2_v4l2_fh *fhp = file->private_data; |
| struct pvr2_v4l2 *vp = fhp->pdi->v4lp; |
| 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; |
| 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_fh_del(&fhp->fh); |
| v4l2_fh_exit(&fhp->fh); |
| file->private_data = NULL; |
| |
| pvr2_channel_done(&fhp->channel); |
| pvr2_trace(PVR2_TRACE_STRUCT, |
| "Destroying pvr_v4l2_fh id=%p",fhp); |
| if (fhp->input_map) { |
| kfree(fhp->input_map); |
| fhp->input_map = NULL; |
| } |
| kfree(fhp); |
| if (vp->channel.mc_head->disconnect_flag && |
| list_empty(&vp->dev_video->devbase.fh_list) && |
| (!vp->dev_radio || |
| list_empty(&vp->dev_radio->devbase.fh_list))) { |
| pvr2_v4l2_destroy_no_lock(vp); |
| } |
| return 0; |
| } |
| |
| |
| static int pvr2_v4l2_open(struct file *file) |
| { |
| struct pvr2_v4l2_dev *dip; /* Our own context pointer */ |
| struct pvr2_v4l2_fh *fhp; |
| struct pvr2_v4l2 *vp; |
| struct pvr2_hdw *hdw; |
| unsigned int input_mask = 0; |
| unsigned int input_cnt,idx; |
| int ret = 0; |
| |
| dip = container_of(video_devdata(file),struct pvr2_v4l2_dev,devbase); |
| |
| vp = dip->v4lp; |
| hdw = vp->channel.hdw; |
| |
| pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_open"); |
| |
| if (!pvr2_hdw_dev_ok(hdw)) { |
| pvr2_trace(PVR2_TRACE_OPEN_CLOSE, |
| "pvr2_v4l2_open: hardware not ready"); |
| return -EIO; |
| } |
| |
| fhp = kzalloc(sizeof(*fhp),GFP_KERNEL); |
| if (!fhp) { |
| return -ENOMEM; |
| } |
| |
| v4l2_fh_init(&fhp->fh, &dip->devbase); |
| init_waitqueue_head(&fhp->wait_data); |
| fhp->pdi = dip; |
| |
| pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr_v4l2_fh id=%p",fhp); |
| pvr2_channel_init(&fhp->channel,vp->channel.mc_head); |
| |
| if (dip->v4l_type == VFL_TYPE_RADIO) { |
| /* Opening device as a radio, legal input selection subset |
| is just the radio. */ |
| input_mask = (1 << PVR2_CVAL_INPUT_RADIO); |
| } else { |
| /* Opening the main V4L device, legal input selection |
| subset includes all analog inputs. */ |
| input_mask = ((1 << PVR2_CVAL_INPUT_RADIO) | |
| (1 << PVR2_CVAL_INPUT_TV) | |
| (1 << PVR2_CVAL_INPUT_COMPOSITE) | |
| (1 << PVR2_CVAL_INPUT_SVIDEO)); |
| } |
| ret = pvr2_channel_limit_inputs(&fhp->channel,input_mask); |
| if (ret) { |
| pvr2_channel_done(&fhp->channel); |
| pvr2_trace(PVR2_TRACE_STRUCT, |
| "Destroying pvr_v4l2_fh id=%p (input mask error)", |
| fhp); |
| v4l2_fh_exit(&fhp->fh); |
| kfree(fhp); |
| return ret; |
| } |
| |
| input_mask &= pvr2_hdw_get_input_available(hdw); |
| input_cnt = 0; |
| for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) { |
| if (input_mask & (1UL << idx)) input_cnt++; |
| } |
| fhp->input_cnt = input_cnt; |
| fhp->input_map = kzalloc(input_cnt,GFP_KERNEL); |
| if (!fhp->input_map) { |
| pvr2_channel_done(&fhp->channel); |
| pvr2_trace(PVR2_TRACE_STRUCT, |
| "Destroying pvr_v4l2_fh id=%p (input map failure)", |
| fhp); |
| v4l2_fh_exit(&fhp->fh); |
| kfree(fhp); |
| return -ENOMEM; |
| } |
| input_cnt = 0; |
| for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) { |
| if (!(input_mask & (1UL << idx))) continue; |
| fhp->input_map[input_cnt++] = idx; |
| } |
| |
| fhp->file = file; |
| file->private_data = fhp; |
| |
| fhp->fw_mode_flag = pvr2_hdw_cpufw_get_enabled(hdw); |
| v4l2_fh_add(&fhp->fh); |
| |
| return 0; |
| } |
| |
| |
| static void pvr2_v4l2_notify(void *ptr) |
| { |
| struct pvr2_v4l2_fh *fhp = ptr; |
| |
| wake_up(&fhp->wait_data); |
| } |
| |
| static int pvr2_v4l2_iosetup(struct pvr2_v4l2_fh *fh) |
| { |
| int ret; |
| struct pvr2_stream *sp; |
| struct pvr2_hdw *hdw; |
| if (fh->rhp) return 0; |
| |
| if (!fh->pdi->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, |
| fh->pdi->stream)) != 0) { |
| /* Someone else must already have it */ |
| return ret; |
| } |
| |
| fh->rhp = pvr2_channel_create_mpeg_stream(fh->pdi->stream); |
| if (!fh->rhp) { |
| pvr2_channel_claim_stream(&fh->channel,NULL); |
| return -ENOMEM; |
| } |
| |
| hdw = fh->channel.mc_head->hdw; |
| sp = fh->pdi->stream->stream; |
| pvr2_stream_set_callback(sp, pvr2_v4l2_notify, fh); |
| pvr2_hdw_set_stream_type(hdw,fh->pdi->config); |
| if ((ret = pvr2_hdw_set_streaming(hdw,!0)) < 0) return ret; |
| return pvr2_ioread_set_enabled(fh->rhp,!0); |
| } |
| |
| |
| static ssize_t pvr2_v4l2_read(struct file *file, |
| char __user *buff, size_t count, loff_t *ppos) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| int ret; |
| |
| if (fh->fw_mode_flag) { |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| char *tbuf; |
| int c1,c2; |
| int tcnt = 0; |
| unsigned int offs = *ppos; |
| |
| tbuf = kmalloc(PAGE_SIZE,GFP_KERNEL); |
| if (!tbuf) return -ENOMEM; |
| |
| while (count) { |
| c1 = count; |
| if (c1 > PAGE_SIZE) c1 = PAGE_SIZE; |
| c2 = pvr2_hdw_cpufw_get(hdw,offs,tbuf,c1); |
| if (c2 < 0) { |
| tcnt = c2; |
| break; |
| } |
| if (!c2) break; |
| if (copy_to_user(buff,tbuf,c2)) { |
| tcnt = -EFAULT; |
| break; |
| } |
| offs += c2; |
| tcnt += c2; |
| buff += c2; |
| count -= c2; |
| *ppos += c2; |
| } |
| kfree(tbuf); |
| return tcnt; |
| } |
| |
| if (!fh->rhp) { |
| ret = pvr2_v4l2_iosetup(fh); |
| if (ret) { |
| return ret; |
| } |
| } |
| |
| for (;;) { |
| ret = pvr2_ioread_read(fh->rhp,buff,count); |
| if (ret >= 0) break; |
| if (ret != -EAGAIN) break; |
| if (file->f_flags & O_NONBLOCK) break; |
| /* Doing blocking I/O. Wait here. */ |
| ret = wait_event_interruptible( |
| fh->wait_data, |
| pvr2_ioread_avail(fh->rhp) >= 0); |
| if (ret < 0) break; |
| } |
| |
| return ret; |
| } |
| |
| |
| static __poll_t pvr2_v4l2_poll(struct file *file, poll_table *wait) |
| { |
| __poll_t mask = 0; |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| int ret; |
| |
| if (fh->fw_mode_flag) { |
| mask |= EPOLLIN | EPOLLRDNORM; |
| return mask; |
| } |
| |
| if (!fh->rhp) { |
| ret = pvr2_v4l2_iosetup(fh); |
| if (ret) return EPOLLERR; |
| } |
| |
| poll_wait(file,&fh->wait_data,wait); |
| |
| if (pvr2_ioread_avail(fh->rhp) >= 0) { |
| mask |= EPOLLIN | EPOLLRDNORM; |
| } |
| |
| return mask; |
| } |
| |
| |
| static const struct v4l2_file_operations vdev_fops = { |
| .owner = THIS_MODULE, |
| .open = pvr2_v4l2_open, |
| .release = pvr2_v4l2_release, |
| .read = pvr2_v4l2_read, |
| .unlocked_ioctl = video_ioctl2, |
| .poll = pvr2_v4l2_poll, |
| }; |
| |
| |
| static const struct video_device vdev_template = { |
| .fops = &vdev_fops, |
| }; |
| |
| |
| static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip, |
| struct pvr2_v4l2 *vp, |
| int v4l_type) |
| { |
| int mindevnum; |
| int unit_number; |
| struct pvr2_hdw *hdw; |
| int *nr_ptr = NULL; |
| u32 caps = V4L2_CAP_TUNER | V4L2_CAP_READWRITE; |
| |
| dip->v4lp = vp; |
| |
| hdw = vp->channel.mc_head->hdw; |
| dip->v4l_type = v4l_type; |
| switch (v4l_type) { |
| case VFL_TYPE_VIDEO: |
| dip->stream = &vp->channel.mc_head->video_stream; |
| dip->config = pvr2_config_mpeg; |
| dip->minor_type = pvr2_v4l_type_video; |
| nr_ptr = video_nr; |
| caps |= V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO; |
| break; |
| case VFL_TYPE_VBI: |
| dip->config = pvr2_config_vbi; |
| dip->minor_type = pvr2_v4l_type_vbi; |
| nr_ptr = vbi_nr; |
| caps |= V4L2_CAP_VBI_CAPTURE; |
| break; |
| 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; |
| caps |= V4L2_CAP_RADIO; |
| break; |
| default: |
| /* Bail out (this should be impossible) */ |
| pr_err(KBUILD_MODNAME ": Failed to set up pvrusb2 v4l dev due to unrecognized config\n"); |
| return; |
| } |
| |
| dip->devbase = vdev_template; |
| dip->devbase.release = pvr2_video_device_release; |
| dip->devbase.ioctl_ops = &pvr2_ioctl_ops; |
| dip->devbase.device_caps = caps; |
| { |
| int val; |
| pvr2_ctrl_get_value( |
| pvr2_hdw_get_ctrl_by_id(hdw, |
| PVR2_CID_STDAVAIL), &val); |
| dip->devbase.tvnorms = (v4l2_std_id)val; |
| } |
| |
| mindevnum = -1; |
| unit_number = pvr2_hdw_get_unit_number(hdw); |
| if (nr_ptr && (unit_number >= 0) && (unit_number < PVR_NUM)) { |
| mindevnum = nr_ptr[unit_number]; |
| } |
| pvr2_hdw_set_v4l2_dev(hdw, &dip->devbase); |
| if ((video_register_device(&dip->devbase, |
| dip->v4l_type, mindevnum) < 0) && |
| (video_register_device(&dip->devbase, |
| dip->v4l_type, -1) < 0)) { |
| pr_err(KBUILD_MODNAME |
| ": Failed to register pvrusb2 v4l device\n"); |
| } |
| |
| pr_info("pvrusb2: registered device %s [%s]\n", |
| video_device_node_name(&dip->devbase), |
| pvr2_config_get_name(dip->config)); |
| |
| pvr2_hdw_v4l_store_minor_number(hdw, |
| dip->minor_type,dip->devbase.minor); |
| } |
| |
| |
| struct pvr2_v4l2 *pvr2_v4l2_create(struct pvr2_context *mnp) |
| { |
| struct pvr2_v4l2 *vp; |
| |
| vp = kzalloc(sizeof(*vp),GFP_KERNEL); |
| if (!vp) return vp; |
| 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 */ |
| vp->dev_video = kzalloc(sizeof(*vp->dev_video),GFP_KERNEL); |
| if (!vp->dev_video) goto fail; |
| pvr2_v4l2_dev_init(vp->dev_video,vp,VFL_TYPE_VIDEO); |
| if (pvr2_hdw_get_input_available(vp->channel.mc_head->hdw) & |
| (1 << PVR2_CVAL_INPUT_RADIO)) { |
| vp->dev_radio = kzalloc(sizeof(*vp->dev_radio),GFP_KERNEL); |
| if (!vp->dev_radio) goto fail; |
| pvr2_v4l2_dev_init(vp->dev_radio,vp,VFL_TYPE_RADIO); |
| } |
| |
| return vp; |
| fail: |
| pvr2_trace(PVR2_TRACE_STRUCT,"Failure creating pvr2_v4l2 id=%p",vp); |
| pvr2_v4l2_destroy_no_lock(vp); |
| return NULL; |
| } |