// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* cx18 ioctl system call
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*
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* Derived from ivtv-ioctl.c
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*
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* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
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* Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
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*/
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#include "cx18-driver.h"
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#include "cx18-io.h"
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#include "cx18-version.h"
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#include "cx18-mailbox.h"
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#include "cx18-i2c.h"
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#include "cx18-queue.h"
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#include "cx18-fileops.h"
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#include "cx18-vbi.h"
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#include "cx18-audio.h"
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#include "cx18-video.h"
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#include "cx18-streams.h"
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#include "cx18-ioctl.h"
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#include "cx18-gpio.h"
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#include "cx18-controls.h"
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#include "cx18-cards.h"
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#include "cx18-av-core.h"
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#include <media/tveeprom.h>
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#include <media/v4l2-event.h>
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u16 cx18_service2vbi(int type)
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{
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switch (type) {
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case V4L2_SLICED_TELETEXT_B:
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return CX18_SLICED_TYPE_TELETEXT_B;
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case V4L2_SLICED_CAPTION_525:
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return CX18_SLICED_TYPE_CAPTION_525;
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case V4L2_SLICED_WSS_625:
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return CX18_SLICED_TYPE_WSS_625;
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case V4L2_SLICED_VPS:
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return CX18_SLICED_TYPE_VPS;
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default:
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return 0;
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}
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}
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/* Check if VBI services are allowed on the (field, line) for the video std */
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static int valid_service_line(int field, int line, int is_pal)
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{
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return (is_pal && line >= 6 &&
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((field == 0 && line <= 23) || (field == 1 && line <= 22))) ||
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(!is_pal && line >= 10 && line < 22);
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}
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/*
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* For a (field, line, std) and inbound potential set of services for that line,
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* return the first valid service of those passed in the incoming set for that
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* line in priority order:
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* CC, VPS, or WSS over TELETEXT for well known lines
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* TELETEXT, before VPS, before CC, before WSS, for other lines
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*/
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static u16 select_service_from_set(int field, int line, u16 set, int is_pal)
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{
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u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525);
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int i;
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set = set & valid_set;
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if (set == 0 || !valid_service_line(field, line, is_pal))
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return 0;
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if (!is_pal) {
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if (line == 21 && (set & V4L2_SLICED_CAPTION_525))
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return V4L2_SLICED_CAPTION_525;
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} else {
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if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS))
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return V4L2_SLICED_VPS;
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if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625))
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return V4L2_SLICED_WSS_625;
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if (line == 23)
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return 0;
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}
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for (i = 0; i < 32; i++) {
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if (BIT(i) & set)
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return 1 << i;
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}
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return 0;
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}
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/*
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* Expand the service_set of *fmt into valid service_lines for the std,
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* and clear the passed in fmt->service_set
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*/
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void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
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{
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u16 set = fmt->service_set;
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int f, l;
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fmt->service_set = 0;
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for (f = 0; f < 2; f++) {
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for (l = 0; l < 24; l++)
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fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal);
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}
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}
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/*
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* Sanitize the service_lines in *fmt per the video std, and return 1
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* if any service_line is left as valid after santization
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*/
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static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
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{
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int f, l;
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u16 set = 0;
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for (f = 0; f < 2; f++) {
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for (l = 0; l < 24; l++) {
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fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal);
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set |= fmt->service_lines[f][l];
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}
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}
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return set != 0;
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}
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/* Compute the service_set from the assumed valid service_lines of *fmt */
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u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt)
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{
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int f, l;
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u16 set = 0;
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for (f = 0; f < 2; f++) {
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for (l = 0; l < 24; l++)
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set |= fmt->service_lines[f][l];
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}
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return set;
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}
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static int cx18_g_fmt_vid_cap(struct file *file, void *fh,
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struct v4l2_format *fmt)
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{
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struct cx18_open_id *id = fh2id(fh);
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struct cx18 *cx = id->cx;
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struct cx18_stream *s = &cx->streams[id->type];
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struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
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pixfmt->width = cx->cxhdl.width;
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pixfmt->height = cx->cxhdl.height;
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pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
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pixfmt->field = V4L2_FIELD_INTERLACED;
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if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
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pixfmt->pixelformat = s->pixelformat;
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pixfmt->sizeimage = s->vb_bytes_per_frame;
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pixfmt->bytesperline = s->vb_bytes_per_line;
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} else {
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pixfmt->pixelformat = V4L2_PIX_FMT_MPEG;
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pixfmt->sizeimage = 128 * 1024;
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pixfmt->bytesperline = 0;
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}
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return 0;
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}
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static int cx18_g_fmt_vbi_cap(struct file *file, void *fh,
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struct v4l2_format *fmt)
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{
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struct cx18 *cx = fh2id(fh)->cx;
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struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi;
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vbifmt->sampling_rate = 27000000;
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vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */
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vbifmt->samples_per_line = VBI_ACTIVE_SAMPLES - 4;
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vbifmt->sample_format = V4L2_PIX_FMT_GREY;
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vbifmt->start[0] = cx->vbi.start[0];
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vbifmt->start[1] = cx->vbi.start[1];
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vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count;
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vbifmt->flags = 0;
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vbifmt->reserved[0] = 0;
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vbifmt->reserved[1] = 0;
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return 0;
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}
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static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh,
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struct v4l2_format *fmt)
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{
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struct cx18 *cx = fh2id(fh)->cx;
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struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
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/* sane, V4L2 spec compliant, defaults */
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vbifmt->reserved[0] = 0;
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vbifmt->reserved[1] = 0;
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vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
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memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines));
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vbifmt->service_set = 0;
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/*
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* Fetch the configured service_lines and total service_set from the
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* digitizer/slicer. Note, cx18_av_vbi() wipes the passed in
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* fmt->fmt.sliced under valid calling conditions
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*/
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if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced))
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return -EINVAL;
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vbifmt->service_set = cx18_get_service_set(vbifmt);
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return 0;
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}
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static int cx18_try_fmt_vid_cap(struct file *file, void *fh,
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struct v4l2_format *fmt)
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{
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struct cx18_open_id *id = fh2id(fh);
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struct cx18 *cx = id->cx;
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int w = fmt->fmt.pix.width;
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int h = fmt->fmt.pix.height;
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int min_h = 2;
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w = min(w, 720);
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w = max(w, 2);
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if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
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/* YUV height must be a multiple of 32 */
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h &= ~0x1f;
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min_h = 32;
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}
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h = min(h, cx->is_50hz ? 576 : 480);
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h = max(h, min_h);
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fmt->fmt.pix.width = w;
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fmt->fmt.pix.height = h;
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return 0;
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}
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static int cx18_try_fmt_vbi_cap(struct file *file, void *fh,
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struct v4l2_format *fmt)
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{
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return cx18_g_fmt_vbi_cap(file, fh, fmt);
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}
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static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh,
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struct v4l2_format *fmt)
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{
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struct cx18 *cx = fh2id(fh)->cx;
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struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
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vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
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vbifmt->reserved[0] = 0;
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vbifmt->reserved[1] = 0;
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/* If given a service set, expand it validly & clear passed in set */
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if (vbifmt->service_set)
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cx18_expand_service_set(vbifmt, cx->is_50hz);
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/* Sanitize the service_lines, and compute the new set if any valid */
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if (check_service_set(vbifmt, cx->is_50hz))
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vbifmt->service_set = cx18_get_service_set(vbifmt);
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return 0;
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}
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static int cx18_s_fmt_vid_cap(struct file *file, void *fh,
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struct v4l2_format *fmt)
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{
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struct cx18_open_id *id = fh2id(fh);
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struct cx18 *cx = id->cx;
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struct v4l2_subdev_format format = {
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.which = V4L2_SUBDEV_FORMAT_ACTIVE,
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};
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struct cx18_stream *s = &cx->streams[id->type];
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int ret;
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int w, h;
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ret = cx18_try_fmt_vid_cap(file, fh, fmt);
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if (ret)
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return ret;
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w = fmt->fmt.pix.width;
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h = fmt->fmt.pix.height;
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if (cx->cxhdl.width == w && cx->cxhdl.height == h &&
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s->pixelformat == fmt->fmt.pix.pixelformat)
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return 0;
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if (atomic_read(&cx->ana_capturing) > 0)
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return -EBUSY;
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s->pixelformat = fmt->fmt.pix.pixelformat;
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/* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2)))
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UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */
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if (s->pixelformat == V4L2_PIX_FMT_HM12) {
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s->vb_bytes_per_frame = h * 720 * 3 / 2;
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s->vb_bytes_per_line = 720; /* First plane */
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} else {
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s->vb_bytes_per_frame = h * 720 * 2;
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s->vb_bytes_per_line = 1440; /* Packed */
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}
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format.format.width = cx->cxhdl.width = w;
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format.format.height = cx->cxhdl.height = h;
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format.format.code = MEDIA_BUS_FMT_FIXED;
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v4l2_subdev_call(cx->sd_av, pad, set_fmt, NULL, &format);
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return cx18_g_fmt_vid_cap(file, fh, fmt);
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}
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static int cx18_s_fmt_vbi_cap(struct file *file, void *fh,
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struct v4l2_format *fmt)
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{
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struct cx18_open_id *id = fh2id(fh);
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struct cx18 *cx = id->cx;
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int ret;
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/*
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* Changing the Encoder's Raw VBI parameters won't have any effect
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* if any analog capture is ongoing
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*/
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if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
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return -EBUSY;
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/*
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* Set the digitizer registers for raw active VBI.
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* Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid
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* calling conditions
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*/
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ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi);
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if (ret)
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return ret;
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/* Store our new v4l2 (non-)sliced VBI state */
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cx->vbi.sliced_in->service_set = 0;
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cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
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return cx18_g_fmt_vbi_cap(file, fh, fmt);
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}
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static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh,
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struct v4l2_format *fmt)
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{
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struct cx18_open_id *id = fh2id(fh);
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struct cx18 *cx = id->cx;
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int ret;
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struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
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cx18_try_fmt_sliced_vbi_cap(file, fh, fmt);
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/*
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* Changing the Encoder's Raw VBI parameters won't have any effect
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* if any analog capture is ongoing
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*/
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if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
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return -EBUSY;
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/*
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* Set the service_lines requested in the digitizer/slicer registers.
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* Note, cx18_av_vbi() wipes some "impossible" service lines in the
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* passed in fmt->fmt.sliced under valid calling conditions
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*/
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ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced);
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if (ret)
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return ret;
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/* Store our current v4l2 sliced VBI settings */
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cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
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memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in));
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return 0;
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}
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#ifdef CONFIG_VIDEO_ADV_DEBUG
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static int cx18_g_register(struct file *file, void *fh,
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struct v4l2_dbg_register *reg)
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{
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struct cx18 *cx = fh2id(fh)->cx;
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if (reg->reg & 0x3)
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return -EINVAL;
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if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
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return -EINVAL;
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reg->size = 4;
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reg->val = cx18_read_enc(cx, reg->reg);
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return 0;
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}
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static int cx18_s_register(struct file *file, void *fh,
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const struct v4l2_dbg_register *reg)
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{
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struct cx18 *cx = fh2id(fh)->cx;
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if (reg->reg & 0x3)
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return -EINVAL;
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if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
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return -EINVAL;
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cx18_write_enc(cx, reg->val, reg->reg);
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return 0;
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}
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#endif
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static int cx18_querycap(struct file *file, void *fh,
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struct v4l2_capability *vcap)
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{
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struct cx18_open_id *id = fh2id(fh);
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struct cx18 *cx = id->cx;
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strscpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver));
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strscpy(vcap->card, cx->card_name, sizeof(vcap->card));
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snprintf(vcap->bus_info, sizeof(vcap->bus_info),
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"PCI:%s", pci_name(cx->pci_dev));
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vcap->capabilities = cx->v4l2_cap | V4L2_CAP_DEVICE_CAPS;
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return 0;
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}
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static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
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{
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struct cx18 *cx = fh2id(fh)->cx;
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return cx18_get_audio_input(cx, vin->index, vin);
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}
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static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
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{
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struct cx18 *cx = fh2id(fh)->cx;
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vin->index = cx->audio_input;
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return cx18_get_audio_input(cx, vin->index, vin);
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}
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static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout)
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{
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struct cx18 *cx = fh2id(fh)->cx;
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if (vout->index >= cx->nof_audio_inputs)
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return -EINVAL;
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cx->audio_input = vout->index;
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cx18_audio_set_io(cx);
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return 0;
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}
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static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
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{
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struct cx18 *cx = fh2id(fh)->cx;
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/* set it to defaults from our table */
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return cx18_get_input(cx, vin->index, vin);
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}
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static int cx18_g_pixelaspect(struct file *file, void *fh,
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int type, struct v4l2_fract *f)
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{
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struct cx18 *cx = fh2id(fh)->cx;
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if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
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return -EINVAL;
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f->numerator = cx->is_50hz ? 54 : 11;
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f->denominator = cx->is_50hz ? 59 : 10;
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return 0;
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}
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static int cx18_g_selection(struct file *file, void *fh,
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struct v4l2_selection *sel)
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{
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struct cx18 *cx = fh2id(fh)->cx;
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if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
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return -EINVAL;
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switch (sel->target) {
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case V4L2_SEL_TGT_CROP_BOUNDS:
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case V4L2_SEL_TGT_CROP_DEFAULT:
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sel->r.top = sel->r.left = 0;
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sel->r.width = 720;
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sel->r.height = cx->is_50hz ? 576 : 480;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int cx18_enum_fmt_vid_cap(struct file *file, void *fh,
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struct v4l2_fmtdesc *fmt)
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{
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static const struct v4l2_fmtdesc formats[] = {
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{
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.index = 0,
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.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
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.description = "HM12 (YUV 4:1:1)",
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.pixelformat = V4L2_PIX_FMT_HM12,
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},
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{
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.index = 1,
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.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
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.flags = V4L2_FMT_FLAG_COMPRESSED,
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.description = "MPEG",
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.pixelformat = V4L2_PIX_FMT_MPEG,
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},
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{
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.index = 2,
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.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
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.description = "UYVY 4:2:2",
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.pixelformat = V4L2_PIX_FMT_UYVY,
|
},
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};
|
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if (fmt->index > ARRAY_SIZE(formats) - 1)
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return -EINVAL;
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*fmt = formats[fmt->index];
|
return 0;
|
}
|
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static int cx18_g_input(struct file *file, void *fh, unsigned int *i)
|
{
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struct cx18 *cx = fh2id(fh)->cx;
|
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*i = cx->active_input;
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return 0;
|
}
|
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int cx18_s_input(struct file *file, void *fh, unsigned int inp)
|
{
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struct cx18_open_id *id = fh2id(fh);
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struct cx18 *cx = id->cx;
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v4l2_std_id std = V4L2_STD_ALL;
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const struct cx18_card_video_input *card_input =
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cx->card->video_inputs + inp;
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if (inp >= cx->nof_inputs)
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return -EINVAL;
|
|
if (inp == cx->active_input) {
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CX18_DEBUG_INFO("Input unchanged\n");
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return 0;
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}
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CX18_DEBUG_INFO("Changing input from %d to %d\n",
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cx->active_input, inp);
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cx->active_input = inp;
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/* Set the audio input to whatever is appropriate for the input type. */
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cx->audio_input = cx->card->video_inputs[inp].audio_index;
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if (card_input->video_type == V4L2_INPUT_TYPE_TUNER)
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std = cx->tuner_std;
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cx->streams[CX18_ENC_STREAM_TYPE_MPG].video_dev.tvnorms = std;
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cx->streams[CX18_ENC_STREAM_TYPE_YUV].video_dev.tvnorms = std;
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cx->streams[CX18_ENC_STREAM_TYPE_VBI].video_dev.tvnorms = std;
|
|
/* prevent others from messing with the streams until
|
we're finished changing inputs. */
|
cx18_mute(cx);
|
cx18_video_set_io(cx);
|
cx18_audio_set_io(cx);
|
cx18_unmute(cx);
|
return 0;
|
}
|
|
static int cx18_g_frequency(struct file *file, void *fh,
|
struct v4l2_frequency *vf)
|
{
|
struct cx18 *cx = fh2id(fh)->cx;
|
|
if (vf->tuner != 0)
|
return -EINVAL;
|
|
cx18_call_all(cx, tuner, g_frequency, vf);
|
return 0;
|
}
|
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int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
|
{
|
struct cx18_open_id *id = fh2id(fh);
|
struct cx18 *cx = id->cx;
|
|
if (vf->tuner != 0)
|
return -EINVAL;
|
|
cx18_mute(cx);
|
CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency);
|
cx18_call_all(cx, tuner, s_frequency, vf);
|
cx18_unmute(cx);
|
return 0;
|
}
|
|
static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std)
|
{
|
struct cx18 *cx = fh2id(fh)->cx;
|
|
*std = cx->std;
|
return 0;
|
}
|
|
int cx18_s_std(struct file *file, void *fh, v4l2_std_id std)
|
{
|
struct cx18_open_id *id = fh2id(fh);
|
struct cx18 *cx = id->cx;
|
|
if ((std & V4L2_STD_ALL) == 0)
|
return -EINVAL;
|
|
if (std == cx->std)
|
return 0;
|
|
if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ||
|
atomic_read(&cx->ana_capturing) > 0) {
|
/* Switching standard would turn off the radio or mess
|
with already running streams, prevent that by
|
returning EBUSY. */
|
return -EBUSY;
|
}
|
|
cx->std = std;
|
cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0;
|
cx->is_50hz = !cx->is_60hz;
|
cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz);
|
cx->cxhdl.width = 720;
|
cx->cxhdl.height = cx->is_50hz ? 576 : 480;
|
cx->vbi.count = cx->is_50hz ? 18 : 12;
|
cx->vbi.start[0] = cx->is_50hz ? 6 : 10;
|
cx->vbi.start[1] = cx->is_50hz ? 318 : 273;
|
CX18_DEBUG_INFO("Switching standard to %llx.\n",
|
(unsigned long long) cx->std);
|
|
/* Tuner */
|
cx18_call_all(cx, video, s_std, cx->std);
|
return 0;
|
}
|
|
static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
|
{
|
struct cx18_open_id *id = fh2id(fh);
|
struct cx18 *cx = id->cx;
|
|
if (vt->index != 0)
|
return -EINVAL;
|
|
cx18_call_all(cx, tuner, s_tuner, vt);
|
return 0;
|
}
|
|
static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
|
{
|
struct cx18 *cx = fh2id(fh)->cx;
|
|
if (vt->index != 0)
|
return -EINVAL;
|
|
cx18_call_all(cx, tuner, g_tuner, vt);
|
|
if (vt->type == V4L2_TUNER_RADIO)
|
strscpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name));
|
else
|
strscpy(vt->name, "cx18 TV Tuner", sizeof(vt->name));
|
return 0;
|
}
|
|
static int cx18_g_sliced_vbi_cap(struct file *file, void *fh,
|
struct v4l2_sliced_vbi_cap *cap)
|
{
|
struct cx18 *cx = fh2id(fh)->cx;
|
int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525;
|
int f, l;
|
|
if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
|
return -EINVAL;
|
|
cap->service_set = 0;
|
for (f = 0; f < 2; f++) {
|
for (l = 0; l < 24; l++) {
|
if (valid_service_line(f, l, cx->is_50hz)) {
|
/*
|
* We can find all v4l2 supported vbi services
|
* for the standard, on a valid line for the std
|
*/
|
cap->service_lines[f][l] = set;
|
cap->service_set |= set;
|
} else
|
cap->service_lines[f][l] = 0;
|
}
|
}
|
for (f = 0; f < 3; f++)
|
cap->reserved[f] = 0;
|
return 0;
|
}
|
|
static int _cx18_process_idx_data(struct cx18_buffer *buf,
|
struct v4l2_enc_idx *idx)
|
{
|
int consumed, remaining;
|
struct v4l2_enc_idx_entry *e_idx;
|
struct cx18_enc_idx_entry *e_buf;
|
|
/* Frame type lookup: 1=I, 2=P, 4=B */
|
static const int mapping[8] = {
|
-1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P,
|
-1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1
|
};
|
|
/*
|
* Assumption here is that a buf holds an integral number of
|
* struct cx18_enc_idx_entry objects and is properly aligned.
|
* This is enforced by the module options on IDX buffer sizes.
|
*/
|
remaining = buf->bytesused - buf->readpos;
|
consumed = 0;
|
e_idx = &idx->entry[idx->entries];
|
e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos];
|
|
while (remaining >= sizeof(struct cx18_enc_idx_entry) &&
|
idx->entries < V4L2_ENC_IDX_ENTRIES) {
|
|
e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32)
|
| le32_to_cpu(e_buf->offset_low);
|
|
e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32)
|
| le32_to_cpu(e_buf->pts_low);
|
|
e_idx->length = le32_to_cpu(e_buf->length);
|
|
e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7];
|
|
e_idx->reserved[0] = 0;
|
e_idx->reserved[1] = 0;
|
|
idx->entries++;
|
e_idx = &idx->entry[idx->entries];
|
e_buf++;
|
|
remaining -= sizeof(struct cx18_enc_idx_entry);
|
consumed += sizeof(struct cx18_enc_idx_entry);
|
}
|
|
/* Swallow any partial entries at the end, if there are any */
|
if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry))
|
consumed += remaining;
|
|
buf->readpos += consumed;
|
return consumed;
|
}
|
|
static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl,
|
struct v4l2_enc_idx *idx)
|
{
|
if (s->type != CX18_ENC_STREAM_TYPE_IDX)
|
return -EINVAL;
|
|
if (mdl->curr_buf == NULL)
|
mdl->curr_buf = list_first_entry(&mdl->buf_list,
|
struct cx18_buffer, list);
|
|
if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) {
|
/*
|
* For some reason we've exhausted the buffers, but the MDL
|
* object still said some data was unread.
|
* Fix that and bail out.
|
*/
|
mdl->readpos = mdl->bytesused;
|
return 0;
|
}
|
|
list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) {
|
|
/* Skip any empty buffers in the MDL */
|
if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused)
|
continue;
|
|
mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx);
|
|
/* exit when MDL drained or request satisfied */
|
if (idx->entries >= V4L2_ENC_IDX_ENTRIES ||
|
mdl->curr_buf->readpos < mdl->curr_buf->bytesused ||
|
mdl->readpos >= mdl->bytesused)
|
break;
|
}
|
return 0;
|
}
|
|
static int cx18_g_enc_index(struct file *file, void *fh,
|
struct v4l2_enc_idx *idx)
|
{
|
struct cx18 *cx = fh2id(fh)->cx;
|
struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
|
s32 tmp;
|
struct cx18_mdl *mdl;
|
|
if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */
|
return -EINVAL;
|
|
/* Compute the best case number of entries we can buffer */
|
tmp = s->buffers -
|
s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN;
|
if (tmp <= 0)
|
tmp = 1;
|
tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry);
|
|
/* Fill out the header of the return structure */
|
idx->entries = 0;
|
idx->entries_cap = tmp;
|
memset(idx->reserved, 0, sizeof(idx->reserved));
|
|
/* Pull IDX MDLs and buffers from q_full and populate the entries */
|
do {
|
mdl = cx18_dequeue(s, &s->q_full);
|
if (mdl == NULL) /* No more IDX data right now */
|
break;
|
|
/* Extract the Index entry data from the MDL and buffers */
|
cx18_process_idx_data(s, mdl, idx);
|
if (mdl->readpos < mdl->bytesused) {
|
/* We finished with data remaining, push the MDL back */
|
cx18_push(s, mdl, &s->q_full);
|
break;
|
}
|
|
/* We drained this MDL, schedule it to go to the firmware */
|
cx18_enqueue(s, mdl, &s->q_free);
|
|
} while (idx->entries < V4L2_ENC_IDX_ENTRIES);
|
|
/* Tell the work handler to send free IDX MDLs to the firmware */
|
cx18_stream_load_fw_queue(s);
|
return 0;
|
}
|
|
static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id)
|
{
|
struct videobuf_queue *q = NULL;
|
struct cx18 *cx = id->cx;
|
struct cx18_stream *s = &cx->streams[id->type];
|
|
switch (s->vb_type) {
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
q = &s->vbuf_q;
|
break;
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
break;
|
default:
|
break;
|
}
|
return q;
|
}
|
|
static int cx18_streamon(struct file *file, void *priv,
|
enum v4l2_buf_type type)
|
{
|
struct cx18_open_id *id = file->private_data;
|
struct cx18 *cx = id->cx;
|
struct cx18_stream *s = &cx->streams[id->type];
|
|
/* Start the hardware only if we're the video device */
|
if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
|
(s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
|
return -EINVAL;
|
|
if (id->type != CX18_ENC_STREAM_TYPE_YUV)
|
return -EINVAL;
|
|
/* Establish a buffer timeout */
|
mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies);
|
|
return videobuf_streamon(cx18_vb_queue(id));
|
}
|
|
static int cx18_streamoff(struct file *file, void *priv,
|
enum v4l2_buf_type type)
|
{
|
struct cx18_open_id *id = file->private_data;
|
struct cx18 *cx = id->cx;
|
struct cx18_stream *s = &cx->streams[id->type];
|
|
/* Start the hardware only if we're the video device */
|
if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
|
(s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
|
return -EINVAL;
|
|
if (id->type != CX18_ENC_STREAM_TYPE_YUV)
|
return -EINVAL;
|
|
return videobuf_streamoff(cx18_vb_queue(id));
|
}
|
|
static int cx18_reqbufs(struct file *file, void *priv,
|
struct v4l2_requestbuffers *rb)
|
{
|
struct cx18_open_id *id = file->private_data;
|
struct cx18 *cx = id->cx;
|
struct cx18_stream *s = &cx->streams[id->type];
|
|
if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
|
(s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
|
return -EINVAL;
|
|
return videobuf_reqbufs(cx18_vb_queue(id), rb);
|
}
|
|
static int cx18_querybuf(struct file *file, void *priv,
|
struct v4l2_buffer *b)
|
{
|
struct cx18_open_id *id = file->private_data;
|
struct cx18 *cx = id->cx;
|
struct cx18_stream *s = &cx->streams[id->type];
|
|
if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
|
(s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
|
return -EINVAL;
|
|
return videobuf_querybuf(cx18_vb_queue(id), b);
|
}
|
|
static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
|
{
|
struct cx18_open_id *id = file->private_data;
|
struct cx18 *cx = id->cx;
|
struct cx18_stream *s = &cx->streams[id->type];
|
|
if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
|
(s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
|
return -EINVAL;
|
|
return videobuf_qbuf(cx18_vb_queue(id), b);
|
}
|
|
static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
|
{
|
struct cx18_open_id *id = file->private_data;
|
struct cx18 *cx = id->cx;
|
struct cx18_stream *s = &cx->streams[id->type];
|
|
if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
|
(s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
|
return -EINVAL;
|
|
return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK);
|
}
|
|
static int cx18_encoder_cmd(struct file *file, void *fh,
|
struct v4l2_encoder_cmd *enc)
|
{
|
struct cx18_open_id *id = fh2id(fh);
|
struct cx18 *cx = id->cx;
|
u32 h;
|
|
switch (enc->cmd) {
|
case V4L2_ENC_CMD_START:
|
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
|
enc->flags = 0;
|
return cx18_start_capture(id);
|
|
case V4L2_ENC_CMD_STOP:
|
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
|
enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
|
cx18_stop_capture(id,
|
enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
|
break;
|
|
case V4L2_ENC_CMD_PAUSE:
|
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
|
enc->flags = 0;
|
if (!atomic_read(&cx->ana_capturing))
|
return -EPERM;
|
if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
|
return 0;
|
h = cx18_find_handle(cx);
|
if (h == CX18_INVALID_TASK_HANDLE) {
|
CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_PAUSE\n");
|
return -EBADFD;
|
}
|
cx18_mute(cx);
|
cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h);
|
break;
|
|
case V4L2_ENC_CMD_RESUME:
|
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
|
enc->flags = 0;
|
if (!atomic_read(&cx->ana_capturing))
|
return -EPERM;
|
if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
|
return 0;
|
h = cx18_find_handle(cx);
|
if (h == CX18_INVALID_TASK_HANDLE) {
|
CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_RESUME\n");
|
return -EBADFD;
|
}
|
cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h);
|
cx18_unmute(cx);
|
break;
|
|
default:
|
CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
|
return -EINVAL;
|
}
|
return 0;
|
}
|
|
static int cx18_try_encoder_cmd(struct file *file, void *fh,
|
struct v4l2_encoder_cmd *enc)
|
{
|
struct cx18 *cx = fh2id(fh)->cx;
|
|
switch (enc->cmd) {
|
case V4L2_ENC_CMD_START:
|
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
|
enc->flags = 0;
|
break;
|
|
case V4L2_ENC_CMD_STOP:
|
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
|
enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
|
break;
|
|
case V4L2_ENC_CMD_PAUSE:
|
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
|
enc->flags = 0;
|
break;
|
|
case V4L2_ENC_CMD_RESUME:
|
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
|
enc->flags = 0;
|
break;
|
|
default:
|
CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
|
return -EINVAL;
|
}
|
return 0;
|
}
|
|
static int cx18_log_status(struct file *file, void *fh)
|
{
|
struct cx18 *cx = fh2id(fh)->cx;
|
struct v4l2_input vidin;
|
struct v4l2_audio audin;
|
int i;
|
|
CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name);
|
if (cx->hw_flags & CX18_HW_TVEEPROM) {
|
struct tveeprom tv;
|
|
cx18_read_eeprom(cx, &tv);
|
}
|
cx18_call_all(cx, core, log_status);
|
cx18_get_input(cx, cx->active_input, &vidin);
|
cx18_get_audio_input(cx, cx->audio_input, &audin);
|
CX18_INFO("Video Input: %s\n", vidin.name);
|
CX18_INFO("Audio Input: %s\n", audin.name);
|
mutex_lock(&cx->gpio_lock);
|
CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n",
|
cx->gpio_dir, cx->gpio_val);
|
mutex_unlock(&cx->gpio_lock);
|
CX18_INFO("Tuner: %s\n",
|
test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV");
|
v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name);
|
CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags);
|
for (i = 0; i < CX18_MAX_STREAMS; i++) {
|
struct cx18_stream *s = &cx->streams[i];
|
|
if (s->video_dev.v4l2_dev == NULL || s->buffers == 0)
|
continue;
|
CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n",
|
s->name, s->s_flags,
|
atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100
|
/ s->buffers,
|
(s->buffers * s->buf_size) / 1024, s->buffers);
|
}
|
CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n",
|
(long long)cx->mpg_data_received,
|
(long long)cx->vbi_data_inserted);
|
return 0;
|
}
|
|
static long cx18_default(struct file *file, void *fh, bool valid_prio,
|
unsigned int cmd, void *arg)
|
{
|
struct cx18 *cx = fh2id(fh)->cx;
|
|
switch (cmd) {
|
case VIDIOC_INT_RESET: {
|
u32 val = *(u32 *)arg;
|
|
if ((val == 0) || (val & 0x01))
|
cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset,
|
(u32) CX18_GPIO_RESET_Z8F0811);
|
break;
|
}
|
|
default:
|
return -ENOTTY;
|
}
|
return 0;
|
}
|
|
static const struct v4l2_ioctl_ops cx18_ioctl_ops = {
|
.vidioc_querycap = cx18_querycap,
|
.vidioc_s_audio = cx18_s_audio,
|
.vidioc_g_audio = cx18_g_audio,
|
.vidioc_enumaudio = cx18_enumaudio,
|
.vidioc_enum_input = cx18_enum_input,
|
.vidioc_g_pixelaspect = cx18_g_pixelaspect,
|
.vidioc_g_selection = cx18_g_selection,
|
.vidioc_g_input = cx18_g_input,
|
.vidioc_s_input = cx18_s_input,
|
.vidioc_g_frequency = cx18_g_frequency,
|
.vidioc_s_frequency = cx18_s_frequency,
|
.vidioc_s_tuner = cx18_s_tuner,
|
.vidioc_g_tuner = cx18_g_tuner,
|
.vidioc_g_enc_index = cx18_g_enc_index,
|
.vidioc_g_std = cx18_g_std,
|
.vidioc_s_std = cx18_s_std,
|
.vidioc_log_status = cx18_log_status,
|
.vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap,
|
.vidioc_encoder_cmd = cx18_encoder_cmd,
|
.vidioc_try_encoder_cmd = cx18_try_encoder_cmd,
|
.vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap,
|
.vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap,
|
.vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap,
|
.vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap,
|
.vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap,
|
.vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap,
|
.vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap,
|
.vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap,
|
.vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap,
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.vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap,
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#ifdef CONFIG_VIDEO_ADV_DEBUG
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.vidioc_g_register = cx18_g_register,
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.vidioc_s_register = cx18_s_register,
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#endif
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.vidioc_default = cx18_default,
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.vidioc_streamon = cx18_streamon,
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.vidioc_streamoff = cx18_streamoff,
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.vidioc_reqbufs = cx18_reqbufs,
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.vidioc_querybuf = cx18_querybuf,
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.vidioc_qbuf = cx18_qbuf,
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.vidioc_dqbuf = cx18_dqbuf,
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.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
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.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
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};
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void cx18_set_funcs(struct video_device *vdev)
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{
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vdev->ioctl_ops = &cx18_ioctl_ops;
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}
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