diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-v4l2.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-v4l2.c | 1363 |
1 files changed, 1363 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c new file mode 100644 index 0000000..97ed959 --- /dev/null +++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c @@ -0,0 +1,1363 @@ +/* + * + * + * 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 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); + 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; + + 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; + int val; + 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); + 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)); + 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_CROPCAP: + { + struct v4l2_cropcap *cap = (struct v4l2_cropcap *)arg; + if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { + ret = -EINVAL; + break; + } + ret = pvr2_hdw_get_cropcap(hdw, cap); + cap->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; /* paranoia */ + break; + } + case VIDIOC_G_CROP: + { + struct v4l2_crop *crop = (struct v4l2_crop *)arg; + int val = 0; + if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { + ret = -EINVAL; + break; + } + ret = pvr2_ctrl_get_value( + pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), &val); + if (ret != 0) { + ret = -EINVAL; + break; + } + crop->c.left = val; + ret = pvr2_ctrl_get_value( + pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), &val); + if (ret != 0) { + ret = -EINVAL; + break; + } + crop->c.top = val; + ret = pvr2_ctrl_get_value( + pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), &val); + if (ret != 0) { + ret = -EINVAL; + break; + } + crop->c.width = val; + ret = pvr2_ctrl_get_value( + pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), &val); + if (ret != 0) { + ret = -EINVAL; + break; + } + crop->c.height = val; + } + case VIDIOC_S_CROP: + { + struct v4l2_crop *crop = (struct v4l2_crop *)arg; + struct v4l2_cropcap cap; + if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { + ret = -EINVAL; + break; + } + cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + ret = pvr2_ctrl_set_value( + pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), + crop->c.left); + if (ret != 0) { + ret = -EINVAL; + break; + } + ret = pvr2_ctrl_set_value( + pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), + crop->c.top); + if (ret != 0) { + ret = -EINVAL; + break; + } + ret = pvr2_ctrl_set_value( + pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), + crop->c.width); + if (ret != 0) { + ret = -EINVAL; + break; + } + ret = pvr2_ctrl_set_value( + pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), + crop->c.height); + if (ret != 0) { + ret = -EINVAL; + 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(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 int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, void *arg) +{ + return __pvr2_v4l2_do_ioctl(file, cmd, arg); +} + +static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip) +{ + int num = dip->devbase.num; + 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), num, + 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.num, + 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: *** + */ |
