| /* |
| * |
| * |
| * Copyright (C) 2005 Mike Isely <isely@pobox.com> |
| * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/version.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 <media/v4l2-dev.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 pvr2_channel channel; |
| struct pvr2_v4l2_dev *dev_info; |
| enum v4l2_priority prio; |
| struct pvr2_ioread *rhp; |
| struct file *file; |
| struct pvr2_v4l2 *vhead; |
| struct pvr2_v4l2_fh *vnext; |
| struct pvr2_v4l2_fh *vprev; |
| 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; |
| struct pvr2_v4l2_fh *vfirst; |
| struct pvr2_v4l2_fh *vlast; |
| |
| struct v4l2_prio_state prio; |
| |
| /* 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"); |
| |
| static struct v4l2_capability pvr_capability ={ |
| .driver = "pvrusb2", |
| .card = "Hauppauge WinTV pvr-usb2", |
| .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_RADIO | |
| V4L2_CAP_READWRITE), |
| .reserved = {0,0,0,0} |
| }; |
| |
| static struct v4l2_fmtdesc pvr_fmtdesc [] = { |
| { |
| .index = 0, |
| .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, |
| .flags = V4L2_FMT_FLAG_COMPRESSED, |
| .description = "MPEG1/2", |
| // This should really be V4L2_PIX_FMT_MPEG, but xawtv |
| // breaks when I do that. |
| .pixelformat = 0, // V4L2_PIX_FMT_MPEG, |
| .reserved = { 0, 0, 0, 0 } |
| } |
| }; |
| |
| #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, |
| // This should really be V4L2_PIX_FMT_MPEG, |
| // but xawtv breaks when I do that. |
| .pixelformat = 0, // V4L2_PIX_FMT_MPEG, |
| .field = V4L2_FIELD_INTERLACED, |
| .bytesperline = 0, // doesn't make sense |
| // here |
| //FIXME : Don't know what to put here... |
| .sizeimage = (32*1024), |
| .colorspace = 0, // doesn't make sense here |
| .priv = 0 |
| } |
| } |
| }, |
| [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, |
| .reserved = { 0, 0 } |
| } |
| } |
| } |
| }; |
| |
| |
| 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() |
| * |
| * This is part of Video 4 Linux API. The procedure handles ioctl() calls. |
| * |
| */ |
| static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, |
| unsigned int cmd, void *arg) |
| { |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| struct pvr2_v4l2 *vp = fh->vhead; |
| struct pvr2_v4l2_dev *dev_info = fh->dev_info; |
| struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
| int ret = -EINVAL; |
| |
| if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) { |
| v4l_print_ioctl(pvr2_hdw_get_driver_name(hdw),cmd); |
| } |
| |
| if (!pvr2_hdw_dev_ok(hdw)) { |
| pvr2_trace(PVR2_TRACE_ERROR_LEGS, |
| "ioctl failed - bad or no context"); |
| return -EFAULT; |
| } |
| |
| /* check priority */ |
| switch (cmd) { |
| case VIDIOC_S_CTRL: |
| case VIDIOC_S_STD: |
| case VIDIOC_S_INPUT: |
| case VIDIOC_S_TUNER: |
| case VIDIOC_S_FREQUENCY: |
| ret = v4l2_prio_check(&vp->prio, &fh->prio); |
| if (ret) |
| return ret; |
| } |
| |
| switch (cmd) { |
| case VIDIOC_QUERYCAP: |
| { |
| 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)); |
| strlcpy(cap->card,pvr2_hdw_get_desc(hdw),sizeof(cap->card)); |
| |
| ret = 0; |
| break; |
| } |
| |
| case VIDIOC_G_PRIORITY: |
| { |
| enum v4l2_priority *p = arg; |
| |
| *p = v4l2_prio_max(&vp->prio); |
| ret = 0; |
| break; |
| } |
| |
| case VIDIOC_S_PRIORITY: |
| { |
| enum v4l2_priority *prio = arg; |
| |
| ret = v4l2_prio_change(&vp->prio, &fh->prio, *prio); |
| break; |
| } |
| |
| case VIDIOC_ENUMSTD: |
| { |
| struct v4l2_standard *vs = (struct v4l2_standard *)arg; |
| int idx = vs->index; |
| ret = pvr2_hdw_get_stdenum_value(hdw,vs,idx+1); |
| break; |
| } |
| |
| case VIDIOC_G_STD: |
| { |
| int val = 0; |
| ret = pvr2_ctrl_get_value( |
| pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_STDCUR),&val); |
| *(v4l2_std_id *)arg = val; |
| break; |
| } |
| |
| case VIDIOC_S_STD: |
| { |
| ret = pvr2_ctrl_set_value( |
| pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_STDCUR), |
| *(v4l2_std_id *)arg); |
| break; |
| } |
| |
| case VIDIOC_ENUMINPUT: |
| { |
| struct pvr2_ctrl *cptr; |
| struct v4l2_input *vi = (struct v4l2_input *)arg; |
| 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; |
| ret = 0; |
| if ((vi->index < 0) || (vi->index >= fh->input_cnt)) { |
| ret = -EINVAL; |
| break; |
| } |
| 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: |
| ret = -EINVAL; |
| break; |
| } |
| if (ret < 0) break; |
| |
| 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. */ |
| |
| memcpy(vi, &tmp, sizeof(tmp)); |
| |
| ret = 0; |
| break; |
| } |
| |
| case VIDIOC_G_INPUT: |
| { |
| unsigned int idx; |
| struct pvr2_ctrl *cptr; |
| struct v4l2_input *vi = (struct v4l2_input *)arg; |
| int val; |
| cptr = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT); |
| val = 0; |
| ret = pvr2_ctrl_get_value(cptr,&val); |
| vi->index = 0; |
| for (idx = 0; idx < fh->input_cnt; idx++) { |
| if (fh->input_map[idx] == val) { |
| vi->index = idx; |
| break; |
| } |
| } |
| break; |
| } |
| |
| case VIDIOC_S_INPUT: |
| { |
| struct v4l2_input *vi = (struct v4l2_input *)arg; |
| if ((vi->index < 0) || (vi->index >= fh->input_cnt)) { |
| ret = -ERANGE; |
| break; |
| } |
| ret = pvr2_ctrl_set_value( |
| pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT), |
| fh->input_map[vi->index]); |
| break; |
| } |
| |
| 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: |
| { |
| /* 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; |
| } |
| |
| case VIDIOC_S_AUDIO: |
| { |
| ret = -EINVAL; |
| break; |
| } |
| case VIDIOC_G_TUNER: |
| { |
| struct v4l2_tuner *vt = (struct v4l2_tuner *)arg; |
| |
| if (vt->index != 0) break; /* Only answer for the 1st tuner */ |
| |
| pvr2_hdw_execute_tuner_poll(hdw); |
| ret = pvr2_hdw_get_tuner_status(hdw,vt); |
| break; |
| } |
| |
| case VIDIOC_S_TUNER: |
| { |
| struct v4l2_tuner *vt=(struct v4l2_tuner *)arg; |
| |
| if (vt->index != 0) |
| break; |
| |
| 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),fv); |
| break; |
| } |
| |
| case VIDIOC_G_FREQUENCY: |
| { |
| 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); |
| 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; |
| } |
| |
| case VIDIOC_ENUM_FMT: |
| { |
| struct v4l2_fmtdesc *fd = (struct v4l2_fmtdesc *)arg; |
| |
| /* Only one format is supported : mpeg.*/ |
| if (fd->index != 0) |
| break; |
| |
| memcpy(fd, pvr_fmtdesc, sizeof(struct v4l2_fmtdesc)); |
| ret = 0; |
| break; |
| } |
| |
| case VIDIOC_G_FMT: |
| { |
| struct v4l2_format *vf = (struct v4l2_format *)arg; |
| int val; |
| switch(vf->type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| 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; |
| ret = 0; |
| break; |
| case V4L2_BUF_TYPE_VBI_CAPTURE: |
| // ????? Still need to figure out to do VBI correctly |
| ret = -EINVAL; |
| break; |
| default: |
| ret = -EINVAL; |
| break; |
| } |
| break; |
| } |
| |
| case VIDIOC_TRY_FMT: |
| case VIDIOC_S_FMT: |
| { |
| struct v4l2_format *vf = (struct v4l2_format *)arg; |
| |
| ret = 0; |
| switch(vf->type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: { |
| 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); |
| 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); |
| ldef = pvr2_ctrl_get_def(vcp); |
| 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; |
| |
| if (cmd == VIDIOC_S_FMT) { |
| pvr2_ctrl_set_value(hcp,vf->fmt.pix.width); |
| pvr2_ctrl_set_value(vcp,vf->fmt.pix.height); |
| } |
| } break; |
| case V4L2_BUF_TYPE_VBI_CAPTURE: |
| // ????? Still need to figure out to do VBI correctly |
| ret = -EINVAL; |
| break; |
| default: |
| ret = -EINVAL; |
| break; |
| } |
| break; |
| } |
| |
| 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); |
| break; |
| } |
| |
| 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; |
| } |
| |
| case VIDIOC_QUERYCTRL: |
| { |
| struct pvr2_ctrl *cptr; |
| struct v4l2_queryctrl *vc = (struct v4l2_queryctrl *)arg; |
| ret = 0; |
| 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); |
| ret = -EINVAL; |
| break; |
| } |
| |
| 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)); |
| strlcpy(vc->name,pvr2_ctrl_get_desc(cptr),sizeof(vc->name)); |
| vc->flags = pvr2_ctrl_get_v4lflags(cptr); |
| vc->default_value = pvr2_ctrl_get_def(cptr); |
| 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)); |
| ret = -EINVAL; |
| break; |
| } |
| break; |
| } |
| |
| case VIDIOC_QUERYMENU: |
| { |
| struct v4l2_querymenu *vm = (struct v4l2_querymenu *)arg; |
| unsigned int cnt = 0; |
| 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; |
| break; |
| } |
| |
| case VIDIOC_G_CTRL: |
| { |
| struct v4l2_control *vc = (struct v4l2_control *)arg; |
| int val = 0; |
| ret = pvr2_ctrl_get_value(pvr2_hdw_get_ctrl_v4l(hdw,vc->id), |
| &val); |
| vc->value = val; |
| break; |
| } |
| |
| case VIDIOC_S_CTRL: |
| { |
| struct v4l2_control *vc = (struct v4l2_control *)arg; |
| ret = pvr2_ctrl_set_value(pvr2_hdw_get_ctrl_v4l(hdw,vc->id), |
| vc->value); |
| break; |
| } |
| |
| case VIDIOC_G_EXT_CTRLS: |
| { |
| struct v4l2_ext_controls *ctls = |
| (struct v4l2_ext_controls *)arg; |
| 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( |
| pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id),&val); |
| if (ret) { |
| ctls->error_idx = idx; |
| break; |
| } |
| /* Ensure that if read as a 64 bit value, the user |
| will still get a hopefully sane value */ |
| ctrl->value64 = 0; |
| ctrl->value = val; |
| } |
| break; |
| } |
| |
| case VIDIOC_S_EXT_CTRLS: |
| { |
| struct v4l2_ext_controls *ctls = |
| (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( |
| pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id), |
| ctrl->value); |
| if (ret) { |
| ctls->error_idx = idx; |
| break; |
| } |
| } |
| break; |
| } |
| |
| case VIDIOC_TRY_EXT_CTRLS: |
| { |
| struct v4l2_ext_controls *ctls = |
| (struct v4l2_ext_controls *)arg; |
| struct v4l2_ext_control *ctrl; |
| struct pvr2_ctrl *pctl; |
| 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); |
| if (!pctl) { |
| ret = -EINVAL; |
| ctls->error_idx = idx; |
| break; |
| } |
| } |
| break; |
| } |
| |
| case VIDIOC_LOG_STATUS: |
| { |
| pvr2_hdw_trigger_module_log(hdw); |
| ret = 0; |
| break; |
| } |
| #ifdef CONFIG_VIDEO_ADV_DEBUG |
| case VIDIOC_DBG_S_REGISTER: |
| case VIDIOC_DBG_G_REGISTER: |
| { |
| u64 val; |
| struct v4l2_register *req = (struct v4l2_register *)arg; |
| if (cmd == VIDIOC_DBG_S_REGISTER) val = req->val; |
| ret = pvr2_hdw_register_access( |
| 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 |
| |
| default : |
| ret = v4l_compat_translate_ioctl(inode,file,cmd, |
| arg,pvr2_v4l2_do_ioctl); |
| } |
| |
| pvr2_hdw_commit_ctl(hdw); |
| |
| if (ret < 0) { |
| if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) { |
| pvr2_trace(PVR2_TRACE_V4LIOCTL, |
| "pvr2_v4l2_do_ioctl failure, ret=%d",ret); |
| } else { |
| if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) { |
| pvr2_trace(PVR2_TRACE_V4LIOCTL, |
| "pvr2_v4l2_do_ioctl failure, ret=%d" |
| " command was:",ret); |
| v4l_print_ioctl(pvr2_hdw_get_driver_name(hdw), |
| cmd); |
| } |
| } |
| } else { |
| pvr2_trace(PVR2_TRACE_V4LIOCTL, |
| "pvr2_v4l2_do_ioctl complete, ret=%d (0x%x)", |
| ret,ret); |
| } |
| return ret; |
| } |
| |
| |
| static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip) |
| { |
| 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; |
| dip->stream = NULL; |
| |
| /* 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) |
| { |
| 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; |
| if (vp->vfirst) return; |
| pvr2_v4l2_destroy_no_lock(vp); |
| } |
| |
| |
| static int pvr2_v4l2_ioctl(struct inode *inode, struct file *file, |
| unsigned int cmd, unsigned long arg) |
| { |
| |
| /* Temporary hack : use ivtv api until a v4l2 one is available. */ |
| #define IVTV_IOC_G_CODEC 0xFFEE7703 |
| #define IVTV_IOC_S_CODEC 0xFFEE7704 |
| if (cmd == IVTV_IOC_G_CODEC || cmd == IVTV_IOC_S_CODEC) return 0; |
| return video_usercopy(inode, file, cmd, arg, pvr2_v4l2_do_ioctl); |
| } |
| |
| |
| 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_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_prio_close(&vp->prio, &fhp->prio); |
| file->private_data = NULL; |
| |
| if (fhp->vnext) { |
| fhp->vnext->vprev = fhp->vprev; |
| } else { |
| vp->vlast = fhp->vprev; |
| } |
| if (fhp->vprev) { |
| fhp->vprev->vnext = fhp->vnext; |
| } else { |
| vp->vfirst = fhp->vnext; |
| } |
| fhp->vnext = NULL; |
| fhp->vprev = NULL; |
| fhp->vhead = 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 && !vp->vfirst) { |
| pvr2_v4l2_destroy_no_lock(vp); |
| } |
| return 0; |
| } |
| |
| |
| static int pvr2_v4l2_open(struct inode *inode, 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; |
| } |
| |
| init_waitqueue_head(&fhp->wait_data); |
| fhp->dev_info = 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); |
| |
| 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 & (1 << 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); |
| kfree(fhp); |
| return -ENOMEM; |
| } |
| input_cnt = 0; |
| for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) { |
| if (!(input_mask & (1 << idx))) continue; |
| fhp->input_map[input_cnt++] = idx; |
| } |
| |
| fhp->vnext = NULL; |
| fhp->vprev = vp->vlast; |
| if (vp->vlast) { |
| vp->vlast->vnext = fhp; |
| } else { |
| vp->vfirst = fhp; |
| } |
| vp->vlast = fhp; |
| fhp->vhead = vp; |
| |
| fhp->file = file; |
| file->private_data = fhp; |
| v4l2_prio_open(&vp->prio,&fhp->prio); |
| |
| fhp->fw_mode_flag = pvr2_hdw_cpufw_get_enabled(hdw); |
| |
| return 0; |
| } |
| |
| |
| static void pvr2_v4l2_notify(struct pvr2_v4l2_fh *fhp) |
| { |
| 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->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, |
| fh->dev_info->stream)) != 0) { |
| /* Someone else must already have it */ |
| return ret; |
| } |
| |
| fh->rhp = pvr2_channel_create_mpeg_stream(fh->dev_info->stream); |
| if (!fh->rhp) { |
| pvr2_channel_claim_stream(&fh->channel,NULL); |
| return -ENOMEM; |
| } |
| |
| hdw = fh->channel.mc_head->hdw; |
| sp = fh->dev_info->stream->stream; |
| pvr2_stream_set_callback(sp,(pvr2_stream_callback)pvr2_v4l2_notify,fh); |
| pvr2_hdw_set_stream_type(hdw,fh->dev_info->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 unsigned int pvr2_v4l2_poll(struct file *file, poll_table *wait) |
| { |
| unsigned int mask = 0; |
| struct pvr2_v4l2_fh *fh = file->private_data; |
| int ret; |
| |
| if (fh->fw_mode_flag) { |
| mask |= POLLIN | POLLRDNORM; |
| return mask; |
| } |
| |
| if (!fh->rhp) { |
| ret = pvr2_v4l2_iosetup(fh); |
| if (ret) return POLLERR; |
| } |
| |
| poll_wait(file,&fh->wait_data,wait); |
| |
| if (pvr2_ioread_avail(fh->rhp) >= 0) { |
| mask |= POLLIN | POLLRDNORM; |
| } |
| |
| return mask; |
| } |
| |
| |
| static const struct file_operations vdev_fops = { |
| .owner = THIS_MODULE, |
| .open = pvr2_v4l2_open, |
| .release = pvr2_v4l2_release, |
| .read = pvr2_v4l2_read, |
| .ioctl = pvr2_v4l2_ioctl, |
| .llseek = no_llseek, |
| .poll = pvr2_v4l2_poll, |
| }; |
| |
| |
| static 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; |
| int *nr_ptr = NULL; |
| dip->v4lp = vp; |
| |
| |
| 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 VFL_TYPE_VBI: |
| dip->config = pvr2_config_vbi; |
| dip->minor_type = pvr2_v4l_type_vbi; |
| nr_ptr = vbi_nr; |
| 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; |
| break; |
| default: |
| /* Bail out (this should be impossible) */ |
| err("Failed to set up pvrusb2 v4l dev" |
| " due to unrecognized config"); |
| 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 (nr_ptr && (unit_number >= 0) && (unit_number < PVR_NUM)) { |
| mindevnum = nr_ptr[unit_number]; |
| } |
| 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->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_GRABBER); |
| 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; |
| } |
| |
| /* |
| Stuff for Emacs to see, in order to encourage consistent editing style: |
| *** Local Variables: *** |
| *** mode: c *** |
| *** fill-column: 75 *** |
| *** tab-width: 8 *** |
| *** c-basic-offset: 8 *** |
| *** End: *** |
| */ |