forked from Minki/linux
598e978aad
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1422 lines
36 KiB
C
1422 lines
36 KiB
C
/*
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*
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*
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* Copyright (C) 2005 Mike Isely <isely@pobox.com>
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* Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/version.h>
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#include "pvrusb2-context.h"
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#include "pvrusb2-hdw.h"
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#include "pvrusb2.h"
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#include "pvrusb2-debug.h"
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#include "pvrusb2-v4l2.h"
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#include "pvrusb2-ioread.h"
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#include <linux/videodev2.h>
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#include <linux/module.h>
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#include <media/v4l2-dev.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-ioctl.h>
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struct pvr2_v4l2_dev;
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struct pvr2_v4l2_fh;
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struct pvr2_v4l2;
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struct pvr2_v4l2_dev {
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struct video_device devbase; /* MUST be first! */
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struct pvr2_v4l2 *v4lp;
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struct pvr2_context_stream *stream;
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/* Information about this device: */
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enum pvr2_config config; /* Expected stream format */
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int v4l_type; /* V4L defined type for this device node */
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enum pvr2_v4l_type minor_type; /* pvr2-understood minor device type */
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};
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struct pvr2_v4l2_fh {
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struct pvr2_channel channel;
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struct pvr2_v4l2_dev *pdi;
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enum v4l2_priority prio;
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struct pvr2_ioread *rhp;
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struct file *file;
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struct pvr2_v4l2 *vhead;
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struct pvr2_v4l2_fh *vnext;
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struct pvr2_v4l2_fh *vprev;
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wait_queue_head_t wait_data;
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int fw_mode_flag;
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/* Map contiguous ordinal value to input id */
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unsigned char *input_map;
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unsigned int input_cnt;
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};
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struct pvr2_v4l2 {
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struct pvr2_channel channel;
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struct pvr2_v4l2_fh *vfirst;
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struct pvr2_v4l2_fh *vlast;
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struct v4l2_prio_state prio;
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/* streams - Note that these must be separately, individually,
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* allocated pointers. This is because the v4l core is going to
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* manage their deletion - separately, individually... */
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struct pvr2_v4l2_dev *dev_video;
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struct pvr2_v4l2_dev *dev_radio;
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};
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static int video_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
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module_param_array(video_nr, int, NULL, 0444);
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MODULE_PARM_DESC(video_nr, "Offset for device's video dev minor");
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static int radio_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
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module_param_array(radio_nr, int, NULL, 0444);
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MODULE_PARM_DESC(radio_nr, "Offset for device's radio dev minor");
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static int vbi_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
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module_param_array(vbi_nr, int, NULL, 0444);
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MODULE_PARM_DESC(vbi_nr, "Offset for device's vbi dev minor");
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static struct v4l2_capability pvr_capability ={
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.driver = "pvrusb2",
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.card = "Hauppauge WinTV pvr-usb2",
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.bus_info = "usb",
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.version = LINUX_VERSION_CODE,
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.capabilities = (V4L2_CAP_VIDEO_CAPTURE |
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V4L2_CAP_TUNER | V4L2_CAP_AUDIO | V4L2_CAP_RADIO |
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V4L2_CAP_READWRITE),
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};
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static struct v4l2_fmtdesc pvr_fmtdesc [] = {
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{
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.index = 0,
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.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
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.flags = V4L2_FMT_FLAG_COMPRESSED,
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.description = "MPEG1/2",
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// This should really be V4L2_PIX_FMT_MPEG, but xawtv
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// breaks when I do that.
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.pixelformat = 0, // V4L2_PIX_FMT_MPEG,
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}
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};
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#define PVR_FORMAT_PIX 0
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#define PVR_FORMAT_VBI 1
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static struct v4l2_format pvr_format [] = {
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[PVR_FORMAT_PIX] = {
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.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
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.fmt = {
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.pix = {
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.width = 720,
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.height = 576,
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// This should really be V4L2_PIX_FMT_MPEG,
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// but xawtv breaks when I do that.
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.pixelformat = 0, // V4L2_PIX_FMT_MPEG,
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.field = V4L2_FIELD_INTERLACED,
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.bytesperline = 0, // doesn't make sense
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// here
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//FIXME : Don't know what to put here...
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.sizeimage = (32*1024),
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.colorspace = 0, // doesn't make sense here
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.priv = 0
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}
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}
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},
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[PVR_FORMAT_VBI] = {
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.type = V4L2_BUF_TYPE_VBI_CAPTURE,
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.fmt = {
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.vbi = {
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.sampling_rate = 27000000,
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.offset = 248,
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.samples_per_line = 1443,
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.sample_format = V4L2_PIX_FMT_GREY,
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.start = { 0, 0 },
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.count = { 0, 0 },
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.flags = 0,
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}
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}
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}
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};
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/*
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* This is part of Video 4 Linux API. These procedures handle ioctl() calls.
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*/
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static int pvr2_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
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memcpy(cap, &pvr_capability, sizeof(struct v4l2_capability));
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strlcpy(cap->bus_info, pvr2_hdw_get_bus_info(hdw),
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sizeof(cap->bus_info));
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strlcpy(cap->card, pvr2_hdw_get_desc(hdw), sizeof(cap->card));
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return 0;
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}
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static int pvr2_g_priority(struct file *file, void *priv, enum v4l2_priority *p)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_v4l2 *vp = fh->vhead;
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*p = v4l2_prio_max(&vp->prio);
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return 0;
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}
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static int pvr2_s_priority(struct file *file, void *priv, enum v4l2_priority prio)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_v4l2 *vp = fh->vhead;
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return v4l2_prio_change(&vp->prio, &fh->prio, prio);
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}
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static int pvr2_g_std(struct file *file, void *priv, v4l2_std_id *std)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
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int val = 0;
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int ret;
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ret = pvr2_ctrl_get_value(
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pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), &val);
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*std = val;
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return ret;
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}
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int pvr2_s_std(struct file *file, void *priv, v4l2_std_id *std)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
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return pvr2_ctrl_set_value(
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pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), *std);
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}
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static int pvr2_querystd(struct file *file, void *priv, v4l2_std_id *std)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
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int val = 0;
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int ret;
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ret = pvr2_ctrl_get_value(
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pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDDETECT), &val);
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*std = val;
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return ret;
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}
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static int pvr2_enum_input(struct file *file, void *priv, struct v4l2_input *vi)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
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struct pvr2_ctrl *cptr;
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struct v4l2_input tmp;
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unsigned int cnt;
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int val;
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int ret;
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cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT);
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memset(&tmp, 0, sizeof(tmp));
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tmp.index = vi->index;
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ret = 0;
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if (vi->index >= fh->input_cnt)
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return -EINVAL;
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val = fh->input_map[vi->index];
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switch (val) {
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case PVR2_CVAL_INPUT_TV:
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case PVR2_CVAL_INPUT_DTV:
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case PVR2_CVAL_INPUT_RADIO:
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tmp.type = V4L2_INPUT_TYPE_TUNER;
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break;
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case PVR2_CVAL_INPUT_SVIDEO:
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case PVR2_CVAL_INPUT_COMPOSITE:
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tmp.type = V4L2_INPUT_TYPE_CAMERA;
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break;
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default:
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return -EINVAL;
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}
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cnt = 0;
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pvr2_ctrl_get_valname(cptr, val,
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tmp.name, sizeof(tmp.name) - 1, &cnt);
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tmp.name[cnt] = 0;
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/* Don't bother with audioset, since this driver currently
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always switches the audio whenever the video is
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switched. */
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/* Handling std is a tougher problem. It doesn't make
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sense in cases where a device might be multi-standard.
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We could just copy out the current value for the
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standard, but it can change over time. For now just
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leave it zero. */
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*vi = tmp;
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return 0;
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}
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static int pvr2_g_input(struct file *file, void *priv, unsigned int *i)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
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unsigned int idx;
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struct pvr2_ctrl *cptr;
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int val;
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int ret;
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cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT);
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val = 0;
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ret = pvr2_ctrl_get_value(cptr, &val);
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*i = 0;
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for (idx = 0; idx < fh->input_cnt; idx++) {
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if (fh->input_map[idx] == val) {
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*i = idx;
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break;
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}
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}
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return ret;
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}
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static int pvr2_s_input(struct file *file, void *priv, unsigned int inp)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
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if (inp >= fh->input_cnt)
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return -EINVAL;
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return pvr2_ctrl_set_value(
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pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT),
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fh->input_map[inp]);
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}
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static int pvr2_enumaudio(struct file *file, void *priv, struct v4l2_audio *vin)
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{
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/* pkt: FIXME: We are returning one "fake" input here
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which could very well be called "whatever_we_like".
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This is for apps that want to see an audio input
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just to feel comfortable, as well as to test if
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it can do stereo or sth. There is actually no guarantee
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that the actual audio input cannot change behind the app's
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back, but most applications should not mind that either.
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Hopefully, mplayer people will work with us on this (this
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whole mess is to support mplayer pvr://), or Hans will come
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up with a more standard way to say "we have inputs but we
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don 't want you to change them independent of video" which
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will sort this mess.
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*/
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if (vin->index > 0)
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return -EINVAL;
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strncpy(vin->name, "PVRUSB2 Audio", 14);
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vin->capability = V4L2_AUDCAP_STEREO;
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return 0;
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}
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static int pvr2_g_audio(struct file *file, void *priv, struct v4l2_audio *vin)
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{
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/* pkt: FIXME: see above comment (VIDIOC_ENUMAUDIO) */
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vin->index = 0;
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strncpy(vin->name, "PVRUSB2 Audio", 14);
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vin->capability = V4L2_AUDCAP_STEREO;
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return 0;
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}
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static int pvr2_s_audio(struct file *file, void *priv, struct v4l2_audio *vout)
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{
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if (vout->index)
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return -EINVAL;
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return 0;
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}
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static int pvr2_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
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if (vt->index != 0)
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return -EINVAL; /* Only answer for the 1st tuner */
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pvr2_hdw_execute_tuner_poll(hdw);
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return pvr2_hdw_get_tuner_status(hdw, vt);
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}
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static int pvr2_s_tuner(struct file *file, void *priv, struct v4l2_tuner *vt)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
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if (vt->index != 0)
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return -EINVAL;
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return pvr2_ctrl_set_value(
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pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_AUDIOMODE),
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vt->audmode);
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}
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int pvr2_s_frequency(struct file *file, void *priv, struct v4l2_frequency *vf)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
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unsigned long fv;
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struct v4l2_tuner vt;
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int cur_input;
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struct pvr2_ctrl *ctrlp;
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int ret;
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ret = pvr2_hdw_get_tuner_status(hdw, &vt);
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if (ret != 0)
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return ret;
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ctrlp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT);
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ret = pvr2_ctrl_get_value(ctrlp, &cur_input);
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if (ret != 0)
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return ret;
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if (vf->type == V4L2_TUNER_RADIO) {
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if (cur_input != PVR2_CVAL_INPUT_RADIO)
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pvr2_ctrl_set_value(ctrlp, PVR2_CVAL_INPUT_RADIO);
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} else {
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if (cur_input == PVR2_CVAL_INPUT_RADIO)
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pvr2_ctrl_set_value(ctrlp, PVR2_CVAL_INPUT_TV);
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}
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fv = vf->frequency;
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if (vt.capability & V4L2_TUNER_CAP_LOW)
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fv = (fv * 125) / 2;
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else
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fv = fv * 62500;
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return pvr2_ctrl_set_value(
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pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),fv);
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}
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static int pvr2_g_frequency(struct file *file, void *priv, struct v4l2_frequency *vf)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
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int val = 0;
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int cur_input;
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struct v4l2_tuner vt;
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int ret;
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ret = pvr2_hdw_get_tuner_status(hdw, &vt);
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if (ret != 0)
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return ret;
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ret = pvr2_ctrl_get_value(
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pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_FREQUENCY),
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&val);
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if (ret != 0)
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return ret;
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pvr2_ctrl_get_value(
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pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT),
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&cur_input);
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if (cur_input == PVR2_CVAL_INPUT_RADIO)
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vf->type = V4L2_TUNER_RADIO;
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else
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vf->type = V4L2_TUNER_ANALOG_TV;
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if (vt.capability & V4L2_TUNER_CAP_LOW)
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val = (val * 2) / 125;
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else
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val /= 62500;
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vf->frequency = val;
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return 0;
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}
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static int pvr2_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *fd)
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{
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/* Only one format is supported : mpeg.*/
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if (fd->index != 0)
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return -EINVAL;
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memcpy(fd, pvr_fmtdesc, sizeof(struct v4l2_fmtdesc));
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return 0;
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}
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static int pvr2_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf)
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{
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struct pvr2_v4l2_fh *fh = file->private_data;
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struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
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int val;
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memcpy(vf, &pvr_format[PVR_FORMAT_PIX], sizeof(struct v4l2_format));
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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);
|
|
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;
|
|
int ret;
|
|
|
|
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);
|
|
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;
|
|
|
|
return pvr2_ctrl_set_value(pvr2_hdw_get_ctrl_v4l(hdw, vc->id),
|
|
vc->value);
|
|
}
|
|
|
|
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;
|
|
unsigned int idx;
|
|
int val;
|
|
int ret;
|
|
|
|
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;
|
|
return ret;
|
|
}
|
|
/* Ensure that if read as a 64 bit value, the user
|
|
will still get a hopefully sane value */
|
|
ctrl->value64 = 0;
|
|
ctrl->value = val;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int pvr2_s_ext_ctrls(struct file *file, void *priv,
|
|
struct v4l2_ext_controls *ctls)
|
|
{
|
|
struct pvr2_v4l2_fh *fh = file->private_data;
|
|
struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
|
|
struct v4l2_ext_control *ctrl;
|
|
unsigned int idx;
|
|
int ret;
|
|
|
|
ret = 0;
|
|
for (idx = 0; idx < ctls->count; idx++) {
|
|
ctrl = ctls->controls + idx;
|
|
ret = pvr2_ctrl_set_value(
|
|
pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id),
|
|
ctrl->value);
|
|
if (ret) {
|
|
ctls->error_idx = idx;
|
|
return ret;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
int ret;
|
|
|
|
/* 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) {
|
|
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_crop(struct file *file, void *priv, struct v4l2_crop *crop)
|
|
{
|
|
struct pvr2_v4l2_fh *fh = file->private_data;
|
|
struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
|
|
int val = 0;
|
|
int ret;
|
|
|
|
if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
ret = pvr2_ctrl_get_value(
|
|
pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), &val);
|
|
if (ret != 0)
|
|
return -EINVAL;
|
|
crop->c.left = val;
|
|
ret = pvr2_ctrl_get_value(
|
|
pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), &val);
|
|
if (ret != 0)
|
|
return -EINVAL;
|
|
crop->c.top = val;
|
|
ret = pvr2_ctrl_get_value(
|
|
pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), &val);
|
|
if (ret != 0)
|
|
return -EINVAL;
|
|
crop->c.width = val;
|
|
ret = pvr2_ctrl_get_value(
|
|
pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), &val);
|
|
if (ret != 0)
|
|
return -EINVAL;
|
|
crop->c.height = val;
|
|
return 0;
|
|
}
|
|
|
|
static int pvr2_s_crop(struct file *file, void *priv, struct v4l2_crop *crop)
|
|
{
|
|
struct pvr2_v4l2_fh *fh = file->private_data;
|
|
struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
|
|
struct v4l2_cropcap cap;
|
|
int ret;
|
|
|
|
if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
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)
|
|
return -EINVAL;
|
|
ret = pvr2_ctrl_set_value(
|
|
pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT),
|
|
crop->c.top);
|
|
if (ret != 0)
|
|
return -EINVAL;
|
|
ret = pvr2_ctrl_set_value(
|
|
pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW),
|
|
crop->c.width);
|
|
if (ret != 0)
|
|
return -EINVAL;
|
|
ret = pvr2_ctrl_set_value(
|
|
pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH),
|
|
crop->c.height);
|
|
if (ret != 0)
|
|
return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
static int pvr2_g_register(struct file *file, void *priv, struct v4l2_dbg_register *req)
|
|
{
|
|
struct pvr2_v4l2_fh *fh = file->private_data;
|
|
struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
|
|
u64 val;
|
|
int ret;
|
|
|
|
ret = pvr2_hdw_register_access(
|
|
hdw, &req->match, req->reg,
|
|
0, &val);
|
|
req->val = val;
|
|
return ret;
|
|
}
|
|
|
|
static int pvr2_s_register(struct file *file, void *priv, struct v4l2_dbg_register *req)
|
|
{
|
|
struct pvr2_v4l2_fh *fh = file->private_data;
|
|
struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
|
|
u64 val;
|
|
int ret;
|
|
|
|
val = req->val;
|
|
ret = pvr2_hdw_register_access(
|
|
hdw, &req->match, req->reg,
|
|
1, &val);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static const struct v4l2_ioctl_ops pvr2_ioctl_ops = {
|
|
.vidioc_querycap = pvr2_querycap,
|
|
.vidioc_g_priority = pvr2_g_priority,
|
|
.vidioc_s_priority = pvr2_s_priority,
|
|
.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_crop = pvr2_s_crop,
|
|
.vidioc_g_crop = pvr2_g_crop,
|
|
.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,
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
.vidioc_g_register = pvr2_g_register,
|
|
.vidioc_s_register = pvr2_s_register,
|
|
#endif
|
|
};
|
|
|
|
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.parent) return;
|
|
dip->devbase.parent = 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 (vp->vfirst) return;
|
|
pvr2_v4l2_destroy_no_lock(vp);
|
|
}
|
|
|
|
|
|
static long pvr2_v4l2_ioctl(struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
|
|
struct pvr2_v4l2_fh *fh = file->private_data;
|
|
struct pvr2_v4l2 *vp = fh->vhead;
|
|
struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
|
|
long 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;
|
|
}
|
|
|
|
ret = video_ioctl2(file, cmd, arg);
|
|
|
|
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=%ld", ret);
|
|
} else {
|
|
if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) {
|
|
pvr2_trace(PVR2_TRACE_V4LIOCTL,
|
|
"pvr2_v4l2_do_ioctl failure, ret=%ld"
|
|
" 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=%ld (0x%lx)",
|
|
ret, ret);
|
|
}
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
static int pvr2_v4l2_release(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 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->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);
|
|
|
|
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->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 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 v4l2_file_operations vdev_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = pvr2_v4l2_open,
|
|
.release = pvr2_v4l2_release,
|
|
.read = pvr2_v4l2_read,
|
|
.ioctl = pvr2_v4l2_ioctl,
|
|
.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)
|
|
{
|
|
struct usb_device *usbdev;
|
|
int mindevnum;
|
|
int unit_number;
|
|
struct pvr2_hdw *hdw;
|
|
int *nr_ptr = NULL;
|
|
dip->v4lp = vp;
|
|
|
|
hdw = vp->channel.mc_head->hdw;
|
|
usbdev = pvr2_hdw_get_dev(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;
|
|
}
|
|
|
|
memcpy(&dip->devbase,&vdev_template,sizeof(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];
|
|
}
|
|
dip->devbase.parent = &usbdev->dev;
|
|
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;
|
|
}
|
|
|
|
/*
|
|
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: ***
|
|
*/
|