v4.19.13 snapshot.
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
new file mode 100644
index 0000000..e53a80b
--- /dev/null
+++ b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
@@ -0,0 +1,1299 @@
+/*
+ *
+ *
+ * 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.
+ *
+ */
+
+#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;
+
+ strlcpy(cap->driver, "pvrusb2", sizeof(cap->driver));
+ 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));
+ cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER |
+ V4L2_CAP_AUDIO | V4L2_CAP_RADIO |
+ V4L2_CAP_READWRITE | V4L2_CAP_DEVICE_CAPS;
+ switch (fh->pdi->devbase.vfl_type) {
+ case VFL_TYPE_GRABBER:
+ cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO;
+ break;
+ case VFL_TYPE_RADIO:
+ cap->device_caps = V4L2_CAP_RADIO;
+ break;
+ default:
+ return -EINVAL;
+ }
+ cap->device_caps |= V4L2_CAP_TUNER | V4L2_CAP_READWRITE;
+ 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;
+ strncpy(vin->name, "PVRUSB2 Audio", 14);
+ 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;
+ strncpy(vin->name, "PVRUSB2 Audio", 14);
+ 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));
+ 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));
+ 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;
+
+ /* Default value cannot be changed */
+ if (ctls->which == V4L2_CTRL_WHICH_DEF_VAL)
+ return -EINVAL;
+
+ 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_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cap)
+{
+ struct pvr2_v4l2_fh *fh = file->private_data;
+ struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
+ int ret;
+
+ if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+ ret = pvr2_hdw_get_cropcap(hdw, cap);
+ cap->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; /* paranoia */
+ 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_cropcap = pvr2_cropcap,
+ .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);
+
+ printk(KERN_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) ||
+ !list_empty(&vp->dev_radio->devbase.fh_list))
+ 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) &&
+ 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 & (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);
+ v4l2_fh_exit(&fhp->fh);
+ 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->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(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->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_stream_callback)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;
+ dip->v4lp = vp;
+
+ hdw = vp->channel.mc_head->hdw;
+ 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) {
+ pr_err(KBUILD_MODNAME
+ ": Failed to set up pvrusb2 v4l video dev due to missing stream instance\n");
+ 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) */
+ 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;
+ {
+ 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");
+ }
+
+ printk(KERN_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_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;
+}