5 * Copyright (C) 2005 Mike Isely <isely@pobox.com>
6 * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include <linux/kernel.h>
24 #include <linux/version.h>
25 #include "pvrusb2-context.h"
26 #include "pvrusb2-hdw.h"
28 #include "pvrusb2-debug.h"
29 #include "pvrusb2-v4l2.h"
30 #include "pvrusb2-ioread.h"
31 #include <linux/videodev2.h>
32 #include <media/v4l2-dev.h>
33 #include <media/v4l2-common.h>
39 struct pvr2_v4l2_dev {
40 struct video_device devbase; /* MUST be first! */
41 struct pvr2_v4l2 *v4lp;
42 struct pvr2_context_stream *stream;
43 /* Information about this device: */
44 enum pvr2_config config; /* Expected stream format */
45 int v4l_type; /* V4L defined type for this device node */
46 enum pvr2_v4l_type minor_type; /* pvr2-understood minor device type */
50 struct pvr2_channel channel;
51 struct pvr2_v4l2_dev *dev_info;
52 enum v4l2_priority prio;
53 struct pvr2_ioread *rhp;
55 struct pvr2_v4l2 *vhead;
56 struct pvr2_v4l2_fh *vnext;
57 struct pvr2_v4l2_fh *vprev;
58 wait_queue_head_t wait_data;
64 struct pvr2_channel channel;
65 struct pvr2_v4l2_fh *vfirst;
66 struct pvr2_v4l2_fh *vlast;
68 struct v4l2_prio_state prio;
70 /* streams - Note that these must be separately, individually,
71 * allocated pointers. This is because the v4l core is going to
72 * manage their deletion - separately, individually... */
73 struct pvr2_v4l2_dev *dev_video;
74 struct pvr2_v4l2_dev *dev_radio;
77 static int video_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
78 module_param_array(video_nr, int, NULL, 0444);
79 MODULE_PARM_DESC(video_nr, "Offset for device's video dev minor");
80 static int radio_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
81 module_param_array(radio_nr, int, NULL, 0444);
82 MODULE_PARM_DESC(radio_nr, "Offset for device's radio dev minor");
83 static int vbi_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
84 module_param_array(vbi_nr, int, NULL, 0444);
85 MODULE_PARM_DESC(vbi_nr, "Offset for device's vbi dev minor");
87 static struct v4l2_capability pvr_capability ={
89 .card = "Hauppauge WinTV pvr-usb2",
91 .version = KERNEL_VERSION(0,8,0),
92 .capabilities = (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VBI_CAPTURE |
93 V4L2_CAP_TUNER | V4L2_CAP_AUDIO | V4L2_CAP_RADIO |
98 static struct v4l2_tuner pvr_v4l2_tuners[]= {
102 .type = V4L2_TUNER_ANALOG_TV,
103 .capability = (V4L2_TUNER_CAP_NORM |
104 V4L2_TUNER_CAP_STEREO |
105 V4L2_TUNER_CAP_LANG1 |
106 V4L2_TUNER_CAP_LANG2),
109 .rxsubchans = V4L2_TUNER_SUB_STEREO,
110 .audmode = V4L2_TUNER_MODE_STEREO,
113 .reserved = {0,0,0,0}
117 static struct v4l2_fmtdesc pvr_fmtdesc [] = {
120 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
121 .flags = V4L2_FMT_FLAG_COMPRESSED,
122 .description = "MPEG1/2",
123 // This should really be V4L2_PIX_FMT_MPEG, but xawtv
124 // breaks when I do that.
125 .pixelformat = 0, // V4L2_PIX_FMT_MPEG,
126 .reserved = { 0, 0, 0, 0 }
130 #define PVR_FORMAT_PIX 0
131 #define PVR_FORMAT_VBI 1
133 static struct v4l2_format pvr_format [] = {
135 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
140 // This should really be V4L2_PIX_FMT_MPEG,
141 // but xawtv breaks when I do that.
142 .pixelformat = 0, // V4L2_PIX_FMT_MPEG,
143 .field = V4L2_FIELD_INTERLACED,
144 .bytesperline = 0, // doesn't make sense
146 //FIXME : Don't know what to put here...
147 .sizeimage = (32*1024),
148 .colorspace = 0, // doesn't make sense here
154 .type = V4L2_BUF_TYPE_VBI_CAPTURE,
157 .sampling_rate = 27000000,
159 .samples_per_line = 1443,
160 .sample_format = V4L2_PIX_FMT_GREY,
171 static const char *get_v4l_name(int v4l_type)
174 case VFL_TYPE_GRABBER: return "video";
175 case VFL_TYPE_RADIO: return "radio";
176 case VFL_TYPE_VBI: return "vbi";
185 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
188 static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file,
189 unsigned int cmd, void *arg)
191 struct pvr2_v4l2_fh *fh = file->private_data;
192 struct pvr2_v4l2 *vp = fh->vhead;
193 struct pvr2_v4l2_dev *dev_info = fh->dev_info;
194 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
197 if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) {
198 v4l_print_ioctl(pvr2_hdw_get_driver_name(hdw),cmd);
201 if (!pvr2_hdw_dev_ok(hdw)) {
202 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
203 "ioctl failed - bad or no context");
213 case VIDIOC_S_FREQUENCY:
214 ret = v4l2_prio_check(&vp->prio, &fh->prio);
220 case VIDIOC_QUERYCAP:
222 struct v4l2_capability *cap = arg;
224 memcpy(cap, &pvr_capability, sizeof(struct v4l2_capability));
230 case VIDIOC_G_PRIORITY:
232 enum v4l2_priority *p = arg;
234 *p = v4l2_prio_max(&vp->prio);
239 case VIDIOC_S_PRIORITY:
241 enum v4l2_priority *prio = arg;
243 ret = v4l2_prio_change(&vp->prio, &fh->prio, *prio);
249 struct v4l2_standard *vs = (struct v4l2_standard *)arg;
251 ret = pvr2_hdw_get_stdenum_value(hdw,vs,idx+1);
258 ret = pvr2_ctrl_get_value(
259 pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_STDCUR),&val);
260 *(v4l2_std_id *)arg = val;
266 ret = pvr2_ctrl_set_value(
267 pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_STDCUR),
268 *(v4l2_std_id *)arg);
272 case VIDIOC_ENUMINPUT:
274 struct pvr2_ctrl *cptr;
275 struct v4l2_input *vi = (struct v4l2_input *)arg;
276 struct v4l2_input tmp;
279 cptr = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT);
281 memset(&tmp,0,sizeof(tmp));
282 tmp.index = vi->index;
285 case PVR2_CVAL_INPUT_TV:
286 case PVR2_CVAL_INPUT_RADIO:
287 tmp.type = V4L2_INPUT_TYPE_TUNER;
289 case PVR2_CVAL_INPUT_SVIDEO:
290 case PVR2_CVAL_INPUT_COMPOSITE:
291 tmp.type = V4L2_INPUT_TYPE_CAMERA;
300 pvr2_ctrl_get_valname(cptr,vi->index,
301 tmp.name,sizeof(tmp.name)-1,&cnt);
304 /* Don't bother with audioset, since this driver currently
305 always switches the audio whenever the video is
308 /* Handling std is a tougher problem. It doesn't make
309 sense in cases where a device might be multi-standard.
310 We could just copy out the current value for the
311 standard, but it can change over time. For now just
314 memcpy(vi, &tmp, sizeof(tmp));
322 struct pvr2_ctrl *cptr;
323 struct v4l2_input *vi = (struct v4l2_input *)arg;
325 cptr = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT);
327 ret = pvr2_ctrl_get_value(cptr,&val);
334 struct v4l2_input *vi = (struct v4l2_input *)arg;
335 ret = pvr2_ctrl_set_value(
336 pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT),
341 case VIDIOC_ENUMAUDIO:
360 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
361 unsigned int status_mask;
363 if (vt->index !=0) break;
365 status_mask = pvr2_hdw_get_signal_status(hdw);
367 memcpy(vt, &pvr_v4l2_tuners[vt->index],
368 sizeof(struct v4l2_tuner));
371 if (status_mask & PVR2_SIGNAL_OK) {
372 if (status_mask & PVR2_SIGNAL_STEREO) {
373 vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
375 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
377 if (status_mask & PVR2_SIGNAL_SAP) {
378 vt->rxsubchans |= (V4L2_TUNER_SUB_LANG1 |
379 V4L2_TUNER_SUB_LANG2);
385 ret = pvr2_ctrl_get_value(
386 pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_AUDIOMODE),
394 struct v4l2_tuner *vt=(struct v4l2_tuner *)arg;
399 ret = pvr2_ctrl_set_value(
400 pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_AUDIOMODE),
404 case VIDIOC_S_FREQUENCY:
406 const struct v4l2_frequency *vf = (struct v4l2_frequency *)arg;
409 if (vf->type == V4L2_TUNER_RADIO) {
414 ret = pvr2_ctrl_set_value(
415 pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),fv);
419 case VIDIOC_G_FREQUENCY:
421 struct v4l2_frequency *vf = (struct v4l2_frequency *)arg;
423 int cur_input = PVR2_CVAL_INPUT_TV;
424 ret = pvr2_ctrl_get_value(
425 pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),
429 pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT),
431 if (cur_input == PVR2_CVAL_INPUT_RADIO) {
432 val = (val * 2) / 125;
434 vf->type = V4L2_TUNER_RADIO;
438 vf->type = V4L2_TUNER_ANALOG_TV;
443 case VIDIOC_ENUM_FMT:
445 struct v4l2_fmtdesc *fd = (struct v4l2_fmtdesc *)arg;
447 /* Only one format is supported : mpeg.*/
451 memcpy(fd, pvr_fmtdesc, sizeof(struct v4l2_fmtdesc));
458 struct v4l2_format *vf = (struct v4l2_format *)arg;
461 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
462 memcpy(vf, &pvr_format[PVR_FORMAT_PIX],
463 sizeof(struct v4l2_format));
466 pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_HRES),
468 vf->fmt.pix.width = val;
471 pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_VRES),
473 vf->fmt.pix.height = val;
476 case V4L2_BUF_TYPE_VBI_CAPTURE:
477 // ????? Still need to figure out to do VBI correctly
490 struct v4l2_format *vf = (struct v4l2_format *)arg;
494 case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
496 struct pvr2_ctrl *hcp,*vcp;
497 int h = vf->fmt.pix.height;
498 int w = vf->fmt.pix.width;
499 hcp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_HRES);
500 vcp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_VRES);
502 lmin = pvr2_ctrl_get_min(hcp);
503 lmax = pvr2_ctrl_get_max(hcp);
506 } else if (w > lmax) {
509 lmin = pvr2_ctrl_get_min(vcp);
510 lmax = pvr2_ctrl_get_max(vcp);
513 } else if (h > lmax) {
517 memcpy(vf, &pvr_format[PVR_FORMAT_PIX],
518 sizeof(struct v4l2_format));
519 vf->fmt.pix.width = w;
520 vf->fmt.pix.height = h;
522 if (cmd == VIDIOC_S_FMT) {
523 pvr2_ctrl_set_value(hcp,vf->fmt.pix.width);
524 pvr2_ctrl_set_value(vcp,vf->fmt.pix.height);
527 case V4L2_BUF_TYPE_VBI_CAPTURE:
528 // ????? Still need to figure out to do VBI correctly
538 case VIDIOC_STREAMON:
540 if (!fh->dev_info->stream) {
541 /* No stream defined for this node. This means
542 that we're not currently allowed to stream from
547 ret = pvr2_hdw_set_stream_type(hdw,dev_info->config);
548 if (ret < 0) return ret;
549 ret = pvr2_hdw_set_streaming(hdw,!0);
553 case VIDIOC_STREAMOFF:
555 if (!fh->dev_info->stream) {
556 /* No stream defined for this node. This means
557 that we're not currently allowed to stream from
562 ret = pvr2_hdw_set_streaming(hdw,0);
566 case VIDIOC_QUERYCTRL:
568 struct pvr2_ctrl *cptr;
569 struct v4l2_queryctrl *vc = (struct v4l2_queryctrl *)arg;
571 if (vc->id & V4L2_CTRL_FLAG_NEXT_CTRL) {
572 cptr = pvr2_hdw_get_ctrl_nextv4l(
573 hdw,(vc->id & ~V4L2_CTRL_FLAG_NEXT_CTRL));
574 if (cptr) vc->id = pvr2_ctrl_get_v4lid(cptr);
576 cptr = pvr2_hdw_get_ctrl_v4l(hdw,vc->id);
579 pvr2_trace(PVR2_TRACE_V4LIOCTL,
580 "QUERYCTRL id=0x%x not implemented here",
586 pvr2_trace(PVR2_TRACE_V4LIOCTL,
587 "QUERYCTRL id=0x%x mapping name=%s (%s)",
588 vc->id,pvr2_ctrl_get_name(cptr),
589 pvr2_ctrl_get_desc(cptr));
590 strlcpy(vc->name,pvr2_ctrl_get_desc(cptr),sizeof(vc->name));
591 vc->flags = pvr2_ctrl_get_v4lflags(cptr);
592 vc->default_value = pvr2_ctrl_get_def(cptr);
593 switch (pvr2_ctrl_get_type(cptr)) {
595 vc->type = V4L2_CTRL_TYPE_MENU;
597 vc->maximum = pvr2_ctrl_get_cnt(cptr) - 1;
601 vc->type = V4L2_CTRL_TYPE_BOOLEAN;
607 vc->type = V4L2_CTRL_TYPE_INTEGER;
608 vc->minimum = pvr2_ctrl_get_min(cptr);
609 vc->maximum = pvr2_ctrl_get_max(cptr);
613 pvr2_trace(PVR2_TRACE_V4LIOCTL,
614 "QUERYCTRL id=0x%x name=%s not mappable",
615 vc->id,pvr2_ctrl_get_name(cptr));
622 case VIDIOC_QUERYMENU:
624 struct v4l2_querymenu *vm = (struct v4l2_querymenu *)arg;
625 unsigned int cnt = 0;
626 ret = pvr2_ctrl_get_valname(pvr2_hdw_get_ctrl_v4l(hdw,vm->id),
628 vm->name,sizeof(vm->name)-1,
636 struct v4l2_control *vc = (struct v4l2_control *)arg;
638 ret = pvr2_ctrl_get_value(pvr2_hdw_get_ctrl_v4l(hdw,vc->id),
646 struct v4l2_control *vc = (struct v4l2_control *)arg;
647 ret = pvr2_ctrl_set_value(pvr2_hdw_get_ctrl_v4l(hdw,vc->id),
652 case VIDIOC_G_EXT_CTRLS:
654 struct v4l2_ext_controls *ctls =
655 (struct v4l2_ext_controls *)arg;
656 struct v4l2_ext_control *ctrl;
659 for (idx = 0; idx < ctls->count; idx++) {
660 ctrl = ctls->controls + idx;
661 ret = pvr2_ctrl_get_value(
662 pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id),&val);
664 ctls->error_idx = idx;
667 /* Ensure that if read as a 64 bit value, the user
668 will still get a hopefully sane value */
675 case VIDIOC_S_EXT_CTRLS:
677 struct v4l2_ext_controls *ctls =
678 (struct v4l2_ext_controls *)arg;
679 struct v4l2_ext_control *ctrl;
681 for (idx = 0; idx < ctls->count; idx++) {
682 ctrl = ctls->controls + idx;
683 ret = pvr2_ctrl_set_value(
684 pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id),
687 ctls->error_idx = idx;
694 case VIDIOC_TRY_EXT_CTRLS:
696 struct v4l2_ext_controls *ctls =
697 (struct v4l2_ext_controls *)arg;
698 struct v4l2_ext_control *ctrl;
699 struct pvr2_ctrl *pctl;
701 /* For the moment just validate that the requested control
703 for (idx = 0; idx < ctls->count; idx++) {
704 ctrl = ctls->controls + idx;
705 pctl = pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id);
708 ctls->error_idx = idx;
715 case VIDIOC_LOG_STATUS:
717 pvr2_hdw_trigger_module_log(hdw);
721 #ifdef CONFIG_VIDEO_ADV_DEBUG
722 case VIDIOC_INT_G_REGISTER:
723 case VIDIOC_INT_S_REGISTER:
726 struct v4l2_register *req = (struct v4l2_register *)arg;
727 if (cmd == VIDIOC_INT_S_REGISTER) val = req->val;
728 ret = pvr2_hdw_register_access(
729 hdw,req->i2c_id,req->reg,
730 cmd == VIDIOC_INT_S_REGISTER,&val);
731 if (cmd == VIDIOC_INT_G_REGISTER) req->val = val;
737 ret = v4l_compat_translate_ioctl(inode,file,cmd,
738 arg,pvr2_v4l2_do_ioctl);
741 pvr2_hdw_commit_ctl(hdw);
744 if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) {
745 pvr2_trace(PVR2_TRACE_V4LIOCTL,
746 "pvr2_v4l2_do_ioctl failure, ret=%d",ret);
748 if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) {
749 pvr2_trace(PVR2_TRACE_V4LIOCTL,
750 "pvr2_v4l2_do_ioctl failure, ret=%d"
751 " command was:",ret);
752 v4l_print_ioctl(pvr2_hdw_get_driver_name(hdw),
757 pvr2_trace(PVR2_TRACE_V4LIOCTL,
758 "pvr2_v4l2_do_ioctl complete, ret=%d (0x%x)",
765 static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip)
767 int minor_id = dip->devbase.minor;
768 struct pvr2_hdw *hdw = dip->v4lp->channel.mc_head->hdw;
769 enum pvr2_config cfg = dip->config;
770 int v4l_type = dip->v4l_type;
772 pvr2_hdw_v4l_store_minor_number(hdw,dip->minor_type,-1);
778 /* Actual deallocation happens later when all internal references
780 video_unregister_device(&dip->devbase);
782 printk(KERN_INFO "pvrusb2: unregistered device %s%u [%s]\n",
783 get_v4l_name(v4l_type),minor_id & 0x1f,
784 pvr2_config_get_name(cfg));
789 static void pvr2_v4l2_destroy_no_lock(struct pvr2_v4l2 *vp)
792 pvr2_v4l2_dev_destroy(vp->dev_video);
796 pvr2_v4l2_dev_destroy(vp->dev_radio);
800 pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_v4l2 id=%p",vp);
801 pvr2_channel_done(&vp->channel);
806 static void pvr2_video_device_release(struct video_device *vdev)
808 struct pvr2_v4l2_dev *dev;
809 dev = container_of(vdev,struct pvr2_v4l2_dev,devbase);
814 static void pvr2_v4l2_internal_check(struct pvr2_channel *chp)
816 struct pvr2_v4l2 *vp;
817 vp = container_of(chp,struct pvr2_v4l2,channel);
818 if (!vp->channel.mc_head->disconnect_flag) return;
819 if (vp->vfirst) return;
820 pvr2_v4l2_destroy_no_lock(vp);
824 static int pvr2_v4l2_ioctl(struct inode *inode, struct file *file,
825 unsigned int cmd, unsigned long arg)
828 /* Temporary hack : use ivtv api until a v4l2 one is available. */
829 #define IVTV_IOC_G_CODEC 0xFFEE7703
830 #define IVTV_IOC_S_CODEC 0xFFEE7704
831 if (cmd == IVTV_IOC_G_CODEC || cmd == IVTV_IOC_S_CODEC) return 0;
832 return video_usercopy(inode, file, cmd, arg, pvr2_v4l2_do_ioctl);
836 static int pvr2_v4l2_release(struct inode *inode, struct file *file)
838 struct pvr2_v4l2_fh *fhp = file->private_data;
839 struct pvr2_v4l2 *vp = fhp->vhead;
840 struct pvr2_context *mp = fhp->vhead->channel.mc_head;
841 struct pvr2_hdw *hdw = fhp->channel.mc_head->hdw;
843 pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_release");
846 struct pvr2_stream *sp;
847 pvr2_hdw_set_streaming(hdw,0);
848 sp = pvr2_ioread_get_stream(fhp->rhp);
849 if (sp) pvr2_stream_set_callback(sp,NULL,NULL);
850 pvr2_ioread_destroy(fhp->rhp);
854 v4l2_prio_close(&vp->prio, &fhp->prio);
855 file->private_data = NULL;
857 pvr2_context_enter(mp); do {
858 /* Restore the previous input selection, if it makes sense
860 if (fhp->dev_info->v4l_type == VFL_TYPE_RADIO) {
861 struct pvr2_ctrl *cp;
863 cp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT);
864 pvr2_ctrl_get_value(cp,&pval);
865 /* Only restore if we're still selecting the radio */
866 if (pval == PVR2_CVAL_INPUT_RADIO) {
867 pvr2_ctrl_set_value(cp,fhp->prev_input_val);
868 pvr2_hdw_commit_ctl(hdw);
873 fhp->vnext->vprev = fhp->vprev;
875 vp->vlast = fhp->vprev;
878 fhp->vprev->vnext = fhp->vnext;
880 vp->vfirst = fhp->vnext;
885 pvr2_channel_done(&fhp->channel);
886 pvr2_trace(PVR2_TRACE_STRUCT,
887 "Destroying pvr_v4l2_fh id=%p",fhp);
889 if (vp->channel.mc_head->disconnect_flag && !vp->vfirst) {
890 pvr2_v4l2_destroy_no_lock(vp);
892 } while (0); pvr2_context_exit(mp);
897 static int pvr2_v4l2_open(struct inode *inode, struct file *file)
899 struct pvr2_v4l2_dev *dip; /* Our own context pointer */
900 struct pvr2_v4l2_fh *fhp;
901 struct pvr2_v4l2 *vp;
902 struct pvr2_hdw *hdw;
904 dip = container_of(video_devdata(file),struct pvr2_v4l2_dev,devbase);
907 hdw = vp->channel.hdw;
909 pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_open");
911 if (!pvr2_hdw_dev_ok(hdw)) {
912 pvr2_trace(PVR2_TRACE_OPEN_CLOSE,
913 "pvr2_v4l2_open: hardware not ready");
917 fhp = kzalloc(sizeof(*fhp),GFP_KERNEL);
922 init_waitqueue_head(&fhp->wait_data);
925 pvr2_context_enter(vp->channel.mc_head); do {
926 pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr_v4l2_fh id=%p",fhp);
927 pvr2_channel_init(&fhp->channel,vp->channel.mc_head);
930 fhp->vprev = vp->vlast;
932 vp->vlast->vnext = fhp;
939 /* Opening the /dev/radioX device implies a mode switch.
940 So execute that here. Note that you can get the
941 IDENTICAL effect merely by opening the normal video
942 device and setting the input appropriately. */
943 if (dip->v4l_type == VFL_TYPE_RADIO) {
944 struct pvr2_ctrl *cp;
945 cp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT);
946 pvr2_ctrl_get_value(cp,&fhp->prev_input_val);
947 pvr2_ctrl_set_value(cp,PVR2_CVAL_INPUT_RADIO);
948 pvr2_hdw_commit_ctl(hdw);
950 } while (0); pvr2_context_exit(vp->channel.mc_head);
953 file->private_data = fhp;
954 v4l2_prio_open(&vp->prio,&fhp->prio);
956 fhp->fw_mode_flag = pvr2_hdw_cpufw_get_enabled(hdw);
962 static void pvr2_v4l2_notify(struct pvr2_v4l2_fh *fhp)
964 wake_up(&fhp->wait_data);
967 static int pvr2_v4l2_iosetup(struct pvr2_v4l2_fh *fh)
970 struct pvr2_stream *sp;
971 struct pvr2_hdw *hdw;
972 if (fh->rhp) return 0;
974 if (!fh->dev_info->stream) {
975 /* No stream defined for this node. This means that we're
976 not currently allowed to stream from this node. */
980 /* First read() attempt. Try to claim the stream and start
982 if ((ret = pvr2_channel_claim_stream(&fh->channel,
983 fh->dev_info->stream)) != 0) {
984 /* Someone else must already have it */
988 fh->rhp = pvr2_channel_create_mpeg_stream(fh->dev_info->stream);
990 pvr2_channel_claim_stream(&fh->channel,NULL);
994 hdw = fh->channel.mc_head->hdw;
995 sp = fh->dev_info->stream->stream;
996 pvr2_stream_set_callback(sp,(pvr2_stream_callback)pvr2_v4l2_notify,fh);
997 pvr2_hdw_set_stream_type(hdw,fh->dev_info->config);
998 pvr2_hdw_set_streaming(hdw,!0);
999 ret = pvr2_ioread_set_enabled(fh->rhp,!0);
1005 static ssize_t pvr2_v4l2_read(struct file *file,
1006 char __user *buff, size_t count, loff_t *ppos)
1008 struct pvr2_v4l2_fh *fh = file->private_data;
1011 if (fh->fw_mode_flag) {
1012 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
1016 unsigned int offs = *ppos;
1018 tbuf = kmalloc(PAGE_SIZE,GFP_KERNEL);
1019 if (!tbuf) return -ENOMEM;
1023 if (c1 > PAGE_SIZE) c1 = PAGE_SIZE;
1024 c2 = pvr2_hdw_cpufw_get(hdw,offs,tbuf,c1);
1030 if (copy_to_user(buff,tbuf,c2)) {
1045 ret = pvr2_v4l2_iosetup(fh);
1052 ret = pvr2_ioread_read(fh->rhp,buff,count);
1053 if (ret >= 0) break;
1054 if (ret != -EAGAIN) break;
1055 if (file->f_flags & O_NONBLOCK) break;
1056 /* Doing blocking I/O. Wait here. */
1057 ret = wait_event_interruptible(
1059 pvr2_ioread_avail(fh->rhp) >= 0);
1067 static unsigned int pvr2_v4l2_poll(struct file *file, poll_table *wait)
1069 unsigned int mask = 0;
1070 struct pvr2_v4l2_fh *fh = file->private_data;
1073 if (fh->fw_mode_flag) {
1074 mask |= POLLIN | POLLRDNORM;
1079 ret = pvr2_v4l2_iosetup(fh);
1080 if (ret) return POLLERR;
1083 poll_wait(file,&fh->wait_data,wait);
1085 if (pvr2_ioread_avail(fh->rhp) >= 0) {
1086 mask |= POLLIN | POLLRDNORM;
1093 static const struct file_operations vdev_fops = {
1094 .owner = THIS_MODULE,
1095 .open = pvr2_v4l2_open,
1096 .release = pvr2_v4l2_release,
1097 .read = pvr2_v4l2_read,
1098 .ioctl = pvr2_v4l2_ioctl,
1099 .llseek = no_llseek,
1100 .poll = pvr2_v4l2_poll,
1104 #define VID_HARDWARE_PVRUSB2 38 /* FIXME : need a good value */
1106 static struct video_device vdev_template = {
1107 .owner = THIS_MODULE,
1108 .type = VID_TYPE_CAPTURE | VID_TYPE_TUNER,
1109 .type2 = (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VBI_CAPTURE
1110 | V4L2_CAP_TUNER | V4L2_CAP_AUDIO
1111 | V4L2_CAP_READWRITE),
1112 .hardware = VID_HARDWARE_PVRUSB2,
1117 static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip,
1118 struct pvr2_v4l2 *vp,
1127 dip->v4l_type = v4l_type;
1129 case VFL_TYPE_GRABBER:
1130 dip->stream = &vp->channel.mc_head->video_stream;
1131 dip->config = pvr2_config_mpeg;
1132 dip->minor_type = pvr2_v4l_type_video;
1135 err("Failed to set up pvrusb2 v4l video dev"
1136 " due to missing stream instance");
1141 dip->config = pvr2_config_vbi;
1142 dip->minor_type = pvr2_v4l_type_vbi;
1145 case VFL_TYPE_RADIO:
1146 dip->stream = &vp->channel.mc_head->video_stream;
1147 dip->config = pvr2_config_mpeg;
1148 dip->minor_type = pvr2_v4l_type_radio;
1152 /* Bail out (this should be impossible) */
1153 err("Failed to set up pvrusb2 v4l dev"
1154 " due to unrecognized config");
1158 memcpy(&dip->devbase,&vdev_template,sizeof(vdev_template));
1159 dip->devbase.release = pvr2_video_device_release;
1162 unit_number = pvr2_hdw_get_unit_number(vp->channel.mc_head->hdw);
1163 if (nr_ptr && (unit_number >= 0) && (unit_number < PVR_NUM)) {
1164 mindevnum = nr_ptr[unit_number];
1166 if ((video_register_device(&dip->devbase,
1167 dip->v4l_type, mindevnum) < 0) &&
1168 (video_register_device(&dip->devbase,
1169 dip->v4l_type, -1) < 0)) {
1170 err("Failed to register pvrusb2 v4l device");
1173 printk(KERN_INFO "pvrusb2: registered device %s%u [%s]\n",
1174 get_v4l_name(dip->v4l_type),dip->devbase.minor & 0x1f,
1175 pvr2_config_get_name(dip->config));
1177 pvr2_hdw_v4l_store_minor_number(vp->channel.mc_head->hdw,
1178 dip->minor_type,dip->devbase.minor);
1182 struct pvr2_v4l2 *pvr2_v4l2_create(struct pvr2_context *mnp)
1184 struct pvr2_v4l2 *vp;
1186 vp = kzalloc(sizeof(*vp),GFP_KERNEL);
1188 vp->dev_video = kzalloc(sizeof(*vp->dev_video),GFP_KERNEL);
1189 vp->dev_radio = kzalloc(sizeof(*vp->dev_radio),GFP_KERNEL);
1190 if (!(vp->dev_video && vp->dev_radio)) {
1191 kfree(vp->dev_video);
1192 kfree(vp->dev_radio);
1196 pvr2_channel_init(&vp->channel,mnp);
1197 pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr2_v4l2 id=%p",vp);
1199 vp->channel.check_func = pvr2_v4l2_internal_check;
1201 /* register streams */
1202 pvr2_v4l2_dev_init(vp->dev_video,vp,VFL_TYPE_GRABBER);
1203 pvr2_v4l2_dev_init(vp->dev_radio,vp,VFL_TYPE_RADIO);
1209 Stuff for Emacs to see, in order to encourage consistent editing style:
1210 *** Local Variables: ***
1212 *** fill-column: 75 ***
1213 *** tab-width: 8 ***
1214 *** c-basic-offset: 8 ***