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1292 lines
33 KiB
1292 lines
33 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* |
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* Copyright (C) 2005 Mike Isely <[email protected]> |
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* Copyright (C) 2004 Aurelien Alleaume <[email protected]> |
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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 "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-device.h> |
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#include <media/v4l2-fh.h> |
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#include <media/v4l2-common.h> |
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#include <media/v4l2-ioctl.h> |
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|
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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 v4l2_fh fh; |
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struct pvr2_channel channel; |
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struct pvr2_v4l2_dev *pdi; |
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struct pvr2_ioread *rhp; |
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struct file *file; |
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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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|
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struct pvr2_v4l2 { |
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struct pvr2_channel channel; |
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|
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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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|
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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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.pixelformat = V4L2_PIX_FMT_MPEG, |
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.field = V4L2_FIELD_INTERLACED, |
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/* FIXME : Don't know what to put here... */ |
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.sizeimage = 32 * 1024, |
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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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|
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strscpy(cap->driver, "pvrusb2", sizeof(cap->driver)); |
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strscpy(cap->bus_info, pvr2_hdw_get_bus_info(hdw), |
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sizeof(cap->bus_info)); |
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strscpy(cap->card, pvr2_hdw_get_desc(hdw), sizeof(cap->card)); |
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cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER | |
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V4L2_CAP_AUDIO | V4L2_CAP_RADIO | |
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V4L2_CAP_READWRITE | V4L2_CAP_DEVICE_CAPS; |
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return 0; |
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} |
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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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|
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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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|
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static 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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int ret; |
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ret = pvr2_ctrl_set_value( |
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pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), std); |
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pvr2_hdw_commit_ctl(hdw); |
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return ret; |
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} |
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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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cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT); |
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|
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memset(&tmp, 0, sizeof(tmp)); |
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tmp.index = vi->index; |
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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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|
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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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|
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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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int ret; |
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if (inp >= fh->input_cnt) |
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return -EINVAL; |
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ret = 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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pvr2_hdw_commit_ctl(hdw); |
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return ret; |
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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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|
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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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strscpy(vin->name, "PVRUSB2 Audio", sizeof(vin->name)); |
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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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strscpy(vin->name, "PVRUSB2 Audio", sizeof(vin->name)); |
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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, const 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, const 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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int ret; |
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if (vt->index != 0) |
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return -EINVAL; |
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ret = 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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pvr2_hdw_commit_ctl(hdw); |
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return ret; |
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} |
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static int pvr2_s_frequency(struct file *file, void *priv, const 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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ret = pvr2_ctrl_set_value( |
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pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),fv); |
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pvr2_hdw_commit_ctl(hdw); |
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return ret; |
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} |
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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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|
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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) |
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return -EINVAL; |
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|
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fd->pixelformat = V4L2_PIX_FMT_MPEG; |
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return 0; |
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} |
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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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|
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memcpy(vf, &pvr_format[PVR_FORMAT_PIX], sizeof(struct v4l2_format)); |
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val = 0; |
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pvr2_ctrl_get_value( |
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pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES), |
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&val); |
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vf->fmt.pix.width = val; |
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val = 0; |
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pvr2_ctrl_get_value( |
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pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES), |
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&val); |
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vf->fmt.pix.height = val; |
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return 0; |
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} |
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|
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static int pvr2_try_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 lmin, lmax, ldef; |
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struct pvr2_ctrl *hcp, *vcp; |
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int h = vf->fmt.pix.height; |
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int w = vf->fmt.pix.width; |
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|
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hcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES); |
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vcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES); |
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|
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lmin = pvr2_ctrl_get_min(hcp); |
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lmax = pvr2_ctrl_get_max(hcp); |
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pvr2_ctrl_get_def(hcp, &ldef); |
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if (w == -1) |
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w = ldef; |
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else if (w < lmin) |
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w = lmin; |
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else if (w > lmax) |
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w = lmax; |
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lmin = pvr2_ctrl_get_min(vcp); |
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lmax = pvr2_ctrl_get_max(vcp); |
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pvr2_ctrl_get_def(vcp, &ldef); |
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if (h == -1) |
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h = ldef; |
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else if (h < lmin) |
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h = lmin; |
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else if (h > lmax) |
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h = lmax; |
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|
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memcpy(vf, &pvr_format[PVR_FORMAT_PIX], |
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sizeof(struct v4l2_format)); |
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vf->fmt.pix.width = w; |
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vf->fmt.pix.height = h; |
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return 0; |
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} |
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|
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static int pvr2_s_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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struct pvr2_ctrl *hcp, *vcp; |
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int ret = pvr2_try_fmt_vid_cap(file, fh, vf); |
|
|
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if (ret) |
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return ret; |
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hcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES); |
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vcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES); |
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pvr2_ctrl_set_value(hcp, vf->fmt.pix.width); |
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pvr2_ctrl_set_value(vcp, vf->fmt.pix.height); |
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pvr2_hdw_commit_ctl(hdw); |
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return 0; |
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} |
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|
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static int pvr2_streamon(struct file *file, void *priv, enum v4l2_buf_type 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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struct pvr2_v4l2_dev *pdi = fh->pdi; |
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int ret; |
|
|
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if (!fh->pdi->stream) { |
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/* No stream defined for this node. This means |
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that we're not currently allowed to stream from |
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this node. */ |
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return -EPERM; |
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} |
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ret = pvr2_hdw_set_stream_type(hdw, pdi->config); |
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if (ret < 0) |
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return ret; |
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return pvr2_hdw_set_streaming(hdw, !0); |
|
} |
|
|
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static int pvr2_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) |
|
{ |
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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 (!fh->pdi->stream) { |
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/* No stream defined for this node. This means |
|
that we're not currently allowed to stream from |
|
this node. */ |
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return -EPERM; |
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} |
|
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)); |
|
strscpy(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_g_pixelaspect(struct file *file, void *priv, |
|
int type, struct v4l2_fract *f) |
|
{ |
|
struct pvr2_v4l2_fh *fh = file->private_data; |
|
struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
|
struct v4l2_cropcap cap = { .type = type }; |
|
int ret; |
|
|
|
if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
|
return -EINVAL; |
|
ret = pvr2_hdw_get_cropcap(hdw, &cap); |
|
if (!ret) |
|
*f = cap.pixelaspect; |
|
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_g_pixelaspect = pvr2_g_pixelaspect, |
|
.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); |
|
|
|
pr_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) || |
|
(vp->dev_radio && |
|
!list_empty(&vp->dev_radio->devbase.fh_list))) { |
|
pvr2_trace(PVR2_TRACE_STRUCT, |
|
"pvr2_v4l2 internal_check exit-empty id=%p", vp); |
|
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) && |
|
(!vp->dev_radio || |
|
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 & (1UL << 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 & (1UL << 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; |
|
u32 caps = V4L2_CAP_TUNER | V4L2_CAP_READWRITE; |
|
|
|
dip->v4lp = vp; |
|
|
|
hdw = vp->channel.mc_head->hdw; |
|
dip->v4l_type = v4l_type; |
|
switch (v4l_type) { |
|
case VFL_TYPE_VIDEO: |
|
dip->stream = &vp->channel.mc_head->video_stream; |
|
dip->config = pvr2_config_mpeg; |
|
dip->minor_type = pvr2_v4l_type_video; |
|
nr_ptr = video_nr; |
|
caps |= V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO; |
|
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; |
|
caps |= V4L2_CAP_VBI_CAPTURE; |
|
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; |
|
caps |= V4L2_CAP_RADIO; |
|
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; |
|
dip->devbase.device_caps = caps; |
|
{ |
|
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"); |
|
} |
|
|
|
pr_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_VIDEO); |
|
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; |
|
}
|
|
|