DOCUMENTED = \
-e "s/\(enum *\)v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1<link linkend=\"\2\">v4l2_mpeg_cx2341x_video_\2<\/link>/g" \
-e "s/\(\(enum\|struct\) *\)\(v4l2_[a-zA-Z0-9_]*\)/\1<link linkend=\"\3\">\3<\/link>/g" \
- -e "s/\(V4L2_PIX_FMT_[A-Z0-9_]\+\) /<link linkend=\"\1\">\1<\/link> /g" \
+ -e "s/\(V4L2_PIX_FMT_[A-Z0-9_]\+\)\(\s\+v4l2_fourcc\)/<link linkend=\"\1\">\1<\/link>\2/g" \
-e ":a;s/\(linkend=\".*\)_\(.*\">\)/\1-\2/;ta" \
-e "s/v4l2\-mpeg\-vbi\-ITV0/v4l2-mpeg-vbi-itv0-1/g"
<row>
<entry>__u32</entry>
<entry><structfield>priv</structfield></entry>
- <entry>Reserved for custom (driver defined) additional
-information about formats. When not used drivers and applications must
-set this field to zero.</entry>
+ <entry><para>This field indicates whether the remaining fields of the
+<structname>v4l2_pix_format</structname> structure, also called the extended
+fields, are valid. When set to <constant>V4L2_PIX_FMT_PRIV_MAGIC</constant>, it
+indicates that the extended fields have been correctly initialized. When set to
+any other value it indicates that the extended fields contain undefined values.
+</para>
+<para>Applications that wish to use the pixel format extended fields must first
+ensure that the feature is supported by querying the device for the
+<link linkend="querycap"><constant>V4L2_CAP_EXT_PIX_FORMAT</constant></link>
+capability. If the capability isn't set the pixel format extended fields are not
+supported and using the extended fields will lead to undefined results.</para>
+<para>To use the extended fields, applications must set the
+<structfield>priv</structfield> field to
+<constant>V4L2_PIX_FMT_PRIV_MAGIC</constant>, initialize all the extended fields
+and zero the unused bytes of the <structname>v4l2_format</structname>
+<structfield>raw_data</structfield> field.</para>
+<para>When the <structfield>priv</structfield> field isn't set to
+<constant>V4L2_PIX_FMT_PRIV_MAGIC</constant> drivers must act as if all the
+extended fields were set to zero. On return drivers must set the
+<structfield>priv</structfield> field to
+<constant>V4L2_PIX_FMT_PRIV_MAGIC</constant> and all the extended fields to
+applicable values.</para></entry>
</row>
</tbody>
</tgroup>
</tgroup>
</table>
+ <table frame="none" pgwide="1" id="v4l2-event-src-change">
+ <title>struct <structname>v4l2_event_src_change</structname></title>
+ <tgroup cols="3">
+ &cs-str;
+ <tbody valign="top">
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>changes</structfield></entry>
+ <entry>
+ A bitmask that tells what has changed. See <xref linkend="src-changes-flags" />.
+ </entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
<table pgwide="1" frame="none" id="changes-flags">
<title>Changes</title>
<tgroup cols="3">
</tbody>
</tgroup>
</table>
+
+ <table pgwide="1" frame="none" id="src-changes-flags">
+ <title>Source Changes</title>
+ <tgroup cols="3">
+ &cs-def;
+ <tbody valign="top">
+ <row>
+ <entry><constant>V4L2_EVENT_SRC_CH_RESOLUTION</constant></entry>
+ <entry>0x0001</entry>
+ <entry>This event gets triggered when a resolution change is
+ detected at an input. This can come from an input connector or
+ from a video decoder.
+ </entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
</refsect1>
<refsect1>
&return-value;
framebuffer device (see <xref linkend="osd" />).</entry>
</row>
<row>
- <entry>&v4l2-pix-format;</entry>
+ <entry>struct</entry>
<entry><structfield>fmt</structfield></entry>
<entry></entry>
- <entry>Layout of the frame buffer. The
-<structname>v4l2_pix_format</structname> structure is defined in <xref
-linkend="pixfmt" />, for clarification the fields and acceptable values
- are listed below:</entry>
+ <entry>Layout of the frame buffer.</entry>
</row>
<row>
<entry></entry>
<entry></entry>
<entry>__u32</entry>
<entry><structfield>priv</structfield></entry>
- <entry>Reserved for additional information about custom
-(driver defined) formats. When not used drivers and applications must
-set this field to zero.</entry>
+ <entry>Reserved. Drivers and applications must set this field to
+zero.</entry>
</row>
</tbody>
</tgroup>
emit RF-modulated video/audio signals. For more information about
modulator programming see
<xref linkend="tuner" />.</entry>
+ </row>
+ <row>
+ <entry><constant>V4L2_CAP_EXT_PIX_FORMAT</constant></entry>
+ <entry>0x00200000</entry>
+ <entry>The device supports the &v4l2-pix-format; extended
+fields.</entry>
</row>
<row>
<entry><constant>V4L2_CAP_READWRITE</constant></entry>
frame interval in between them.</para>
</entry>
</row>
+ <row>
+ <entry><constant>V4L2_EVENT_SOURCE_CHANGE</constant></entry>
+ <entry>5</entry>
+ <entry>
+ <para>This event is triggered when a source parameter change is
+ detected during runtime by the video device. It can be a
+ runtime resolution change triggered by a video decoder or the
+ format change happening on an input connector.
+ This event requires that the <structfield>id</structfield>
+ matches the input index (when used with a video device node)
+ or the pad index (when used with a subdevice node) from which
+ you want to receive events.</para>
+
+ <para>This event has a &v4l2-event-source-change; associated
+ with it. The <structfield>changes</structfield> bitfield denotes
+ what has changed for the subscribed pad. If multiple events
+ occurred before application could dequeue them, then the changes
+ will have the ORed value of all the events generated.</para>
+ </entry>
+ </row>
<row>
<entry><constant>V4L2_EVENT_PRIVATE_START</constant></entry>
<entry>0x08000000</entry>
pix->sizeimage = pix->width * pix->height;
/* Just a guess */
pix->colorspace = V4L2_COLORSPACE_SRGB;
- pix->priv = 0;
return 0;
}
pix->sizeimage = pix->width * pix->height;
/* Just a guess */
pix->colorspace = V4L2_COLORSPACE_SRGB;
- pix->priv = 0;
return 0;
}
pixfmt->height = cx->cxhdl.height;
pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
pixfmt->field = V4L2_FIELD_INTERLACED;
- pixfmt->priv = 0;
if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
pixfmt->pixelformat = s->pixelformat;
pixfmt->sizeimage = s->vb_bytes_per_frame;
f->fmt.pix.bytesperline = (chan->width * chan->fmt->depth) >> 3;
f->fmt.pix.sizeimage = chan->height * f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
- f->fmt.pix.priv = 0;
return 0;
}
f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
- f->fmt.pix.priv = 0;
return 0;
}
f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
- f->fmt.pix.priv = 0;
return 0;
}
pixfmt->height = itv->cxhdl.height;
pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
pixfmt->field = V4L2_FIELD_INTERLACED;
- pixfmt->priv = 0;
if (id->type == IVTV_ENC_STREAM_TYPE_YUV) {
pixfmt->pixelformat = V4L2_PIX_FMT_HM12;
/* YUV size is (Y=(h*720) + UV=(h*(720/2))) */
pixfmt->height = itv->main_rect.height;
pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
pixfmt->field = V4L2_FIELD_INTERLACED;
- pixfmt->priv = 0;
if (id->type == IVTV_DEC_STREAM_TYPE_YUV) {
switch (itv->yuv_info.lace_mode & IVTV_YUV_MODE_MASK) {
case IVTV_YUV_MODE_INTERLACED:
fb->fmt.bytesperline = fb->fmt.width;
fb->fmt.colorspace = V4L2_COLORSPACE_SMPTE170M;
fb->fmt.field = V4L2_FIELD_INTERLACED;
- fb->fmt.priv = 0;
if (fb->fmt.pixelformat != V4L2_PIX_FMT_PAL8)
fb->fmt.bytesperline *= 2;
if (fb->fmt.pixelformat == V4L2_PIX_FMT_RGB32 ||
f->fmt.pix.sizeimage = f->fmt.pix.height *
f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = 0;
- f->fmt.pix.priv = 0;
return 0;
}
f->fmt.pix.sizeimage = f->fmt.pix.height *
f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = 0;
- f->fmt.pix.priv = 0;
return 0;
}
f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
f->fmt.pix.sizeimage = f->fmt.pix.width * 2 * f->fmt.pix.height;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
- f->fmt.pix.priv = 0;
return 0;
}
pix->pixelformat = omap_formats[ifmt].pixelformat;
pix->field = V4L2_FIELD_ANY;
- pix->priv = 0;
switch (pix->pixelformat) {
case V4L2_PIX_FMT_YUYV:
pix->field = V4L2_FIELD_ANY;
pix->bytesperline = pix->width * 2;
pix->sizeimage = pix->bytesperline * pix->height;
- pix->priv = 0;
pix->colorspace = V4L2_COLORSPACE_JPEG;
vout->bpp = RGB565_BPP;
pix->bytesperline = vfmt->bytesperline;
pix->sizeimage = vfmt->bytesperline * pix->height *
vfmt->fmt->depth / vfmt->fmt->ydepth;
- pix->priv = 0;
dev_dbg(veu->dev, "%s(): type: %d, size %u @ %ux%u, fmt %x\n", __func__,
f->type, pix->sizeimage, pix->width, pix->height, pix->pixelformat);
pix->pixelformat = fmt->fourcc;
pix->colorspace = sh_veu_4cc2cspace(pix->pixelformat);
- pix->priv = 0;
pr_debug("%s(): type: %d, size %u\n", __func__, f->type, pix->sizeimage);
pf->colorspace =
vino_data_formats[tempvcs.data_format].colorspace;
- pf->priv = 0;
return 0;
}
pf->colorspace =
vino_data_formats[vcs->data_format].colorspace;
- pf->priv = 0;
-
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
return 0;
}
pf->colorspace =
vino_data_formats[vcs->data_format].colorspace;
- pf->priv = 0;
-
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
return 0;
}
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
else
f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
- f->fmt.pix.priv = 0;
return 0;
}
f->fmt.pix.width = dev->ts1.width;
f->fmt.pix.height = dev->ts1.height;
f->fmt.pix.field = V4L2_FIELD_INTERLACED;
- f->fmt.pix.priv = 0;
dprintk(1, "VIDIOC_G_FMT: w: %d, h: %d\n",
dev->ts1.width, dev->ts1.height);
dprintk(3, "exit vidioc_g_fmt_vid_cap()\n");
f->fmt.pix.sizeimage = mpeglines * mpeglinesize;
f->fmt.pix.field = V4L2_FIELD_INTERLACED;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
- f->fmt.pix.priv = 0;
dprintk(1, "VIDIOC_TRY_FMT: w: %d, h: %d\n",
dev->ts1.width, dev->ts1.height);
dprintk(3, "exit vidioc_try_fmt_vid_cap()\n");
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
f->fmt.pix.field = V4L2_FIELD_INTERLACED;
- f->fmt.pix.priv = 0;
return 0;
}
f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
f->fmt.pix.field = V4L2_FIELD_INTERLACED;
- f->fmt.pix.priv = 0;
return 0;
}
mode = gspca_dev->curr_mode;
fmt->fmt.pix = gspca_dev->cam.cam_mode[mode];
- /* some drivers use priv internally, zero it before giving it to
- userspace */
+ /* some drivers use priv internally, zero it before giving it back to
+ the core */
fmt->fmt.pix.priv = 0;
return 0;
}
mode = mode2;
}
fmt->fmt.pix = gspca_dev->cam.cam_mode[mode];
- /* some drivers use priv internally, zero it before giving it to
- userspace */
+ /* some drivers use priv internally, zero it before giving it back to
+ the core */
fmt->fmt.pix.priv = 0;
return mode; /* used when s_fmt */
}
f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
f->fmt.pix.sizeimage = dev->bulk_in_size;
f->fmt.pix.bytesperline = 0;
- f->fmt.pix.priv = 0;
if (f->fmt.pix.width == 720) {
/* SDTV formats */
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
pix_format->bytesperline = 2 * pix_format->width;
pix_format->sizeimage = pix_format->bytesperline
* pix_format->height;
- pix_format->priv = 0;
return 0;
}
fmtd->fmt.pix.bytesperline = 2 * fmtd->fmt.pix.width;
fmtd->fmt.pix.sizeimage = fmtd->fmt.pix.bytesperline
* fmtd->fmt.pix.height;
- fmtd->fmt.pix.priv = 0;
return 0;
}
.bytesperline = 720 * 2,
.sizeimage = 720 * 576 * 2,
.colorspace = V4L2_COLORSPACE_SMPTE170M,
- .priv = 0
};
}
(f->fmt.pix.width * fh->fmt->depth) >> 3;
f->fmt.pix.sizeimage =
f->fmt.pix.height * f->fmt.pix.bytesperline;
- f->fmt.pix.priv = 0;
return 0;
}
f->fmt.pix.width &= ~0x01;
f->fmt.pix.field = field;
- f->fmt.pix.priv = 0;
f->fmt.pix.bytesperline =
(f->fmt.pix.width * fmt->depth) >> 3;
f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
- f->fmt.pix.priv = 0;
DBG("%s: V4L2_PIX_FMT_%s (%d) ok!\n", __func__,
decode_fourcc(f->fmt.pix.pixelformat, pixelformat_name),
f->fmt.pix.field);
f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
- f->fmt.pix.priv = 0;
return 0;
}
f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
- f->fmt.pix.priv = 0;
cam->vb_vidq.field = f->fmt.pix.field;
if (f->fmt.pix.width == 160 && f->fmt.pix.height == 120)
obj-$(CONFIG_VIDEO_V4L2) += videodev.o
obj-$(CONFIG_VIDEO_V4L2_INT_DEVICE) += v4l2-int-device.o
obj-$(CONFIG_VIDEO_V4L2) += v4l2-common.o
+obj-$(CONFIG_VIDEO_V4L2) += v4l2-dv-timings.o
obj-$(CONFIG_VIDEO_TUNER) += tuner.o
}
EXPORT_SYMBOL_GPL(v4l_bound_align_image);
-/**
- * v4l_match_dv_timings - check if two timings match
- * @t1 - compare this v4l2_dv_timings struct...
- * @t2 - with this struct.
- * @pclock_delta - the allowed pixelclock deviation.
- *
- * Compare t1 with t2 with a given margin of error for the pixelclock.
- */
-bool v4l_match_dv_timings(const struct v4l2_dv_timings *t1,
- const struct v4l2_dv_timings *t2,
- unsigned pclock_delta)
-{
- if (t1->type != t2->type || t1->type != V4L2_DV_BT_656_1120)
- return false;
- if (t1->bt.width == t2->bt.width &&
- t1->bt.height == t2->bt.height &&
- t1->bt.interlaced == t2->bt.interlaced &&
- t1->bt.polarities == t2->bt.polarities &&
- t1->bt.pixelclock >= t2->bt.pixelclock - pclock_delta &&
- t1->bt.pixelclock <= t2->bt.pixelclock + pclock_delta &&
- t1->bt.hfrontporch == t2->bt.hfrontporch &&
- t1->bt.vfrontporch == t2->bt.vfrontporch &&
- t1->bt.vsync == t2->bt.vsync &&
- t1->bt.vbackporch == t2->bt.vbackporch &&
- (!t1->bt.interlaced ||
- (t1->bt.il_vfrontporch == t2->bt.il_vfrontporch &&
- t1->bt.il_vsync == t2->bt.il_vsync &&
- t1->bt.il_vbackporch == t2->bt.il_vbackporch)))
- return true;
- return false;
-}
-EXPORT_SYMBOL_GPL(v4l_match_dv_timings);
-
-/*
- * CVT defines
- * Based on Coordinated Video Timings Standard
- * version 1.1 September 10, 2003
- */
-
-#define CVT_PXL_CLK_GRAN 250000 /* pixel clock granularity */
-
-/* Normal blanking */
-#define CVT_MIN_V_BPORCH 7 /* lines */
-#define CVT_MIN_V_PORCH_RND 3 /* lines */
-#define CVT_MIN_VSYNC_BP 550 /* min time of vsync + back porch (us) */
-
-/* Normal blanking for CVT uses GTF to calculate horizontal blanking */
-#define CVT_CELL_GRAN 8 /* character cell granularity */
-#define CVT_M 600 /* blanking formula gradient */
-#define CVT_C 40 /* blanking formula offset */
-#define CVT_K 128 /* blanking formula scaling factor */
-#define CVT_J 20 /* blanking formula scaling factor */
-#define CVT_C_PRIME (((CVT_C - CVT_J) * CVT_K / 256) + CVT_J)
-#define CVT_M_PRIME (CVT_K * CVT_M / 256)
-
-/* Reduced Blanking */
-#define CVT_RB_MIN_V_BPORCH 7 /* lines */
-#define CVT_RB_V_FPORCH 3 /* lines */
-#define CVT_RB_MIN_V_BLANK 460 /* us */
-#define CVT_RB_H_SYNC 32 /* pixels */
-#define CVT_RB_H_BPORCH 80 /* pixels */
-#define CVT_RB_H_BLANK 160 /* pixels */
-
-/** v4l2_detect_cvt - detect if the given timings follow the CVT standard
- * @frame_height - the total height of the frame (including blanking) in lines.
- * @hfreq - the horizontal frequency in Hz.
- * @vsync - the height of the vertical sync in lines.
- * @polarities - the horizontal and vertical polarities (same as struct
- * v4l2_bt_timings polarities).
- * @fmt - the resulting timings.
- *
- * This function will attempt to detect if the given values correspond to a
- * valid CVT format. If so, then it will return true, and fmt will be filled
- * in with the found CVT timings.
- */
-bool v4l2_detect_cvt(unsigned frame_height, unsigned hfreq, unsigned vsync,
- u32 polarities, struct v4l2_dv_timings *fmt)
-{
- int v_fp, v_bp, h_fp, h_bp, hsync;
- int frame_width, image_height, image_width;
- bool reduced_blanking;
- unsigned pix_clk;
-
- if (vsync < 4 || vsync > 7)
- return false;
-
- if (polarities == V4L2_DV_VSYNC_POS_POL)
- reduced_blanking = false;
- else if (polarities == V4L2_DV_HSYNC_POS_POL)
- reduced_blanking = true;
- else
- return false;
-
- /* Vertical */
- if (reduced_blanking) {
- v_fp = CVT_RB_V_FPORCH;
- v_bp = (CVT_RB_MIN_V_BLANK * hfreq + 999999) / 1000000;
- v_bp -= vsync + v_fp;
-
- if (v_bp < CVT_RB_MIN_V_BPORCH)
- v_bp = CVT_RB_MIN_V_BPORCH;
- } else {
- v_fp = CVT_MIN_V_PORCH_RND;
- v_bp = (CVT_MIN_VSYNC_BP * hfreq + 999999) / 1000000 - vsync;
-
- if (v_bp < CVT_MIN_V_BPORCH)
- v_bp = CVT_MIN_V_BPORCH;
- }
- image_height = (frame_height - v_fp - vsync - v_bp + 1) & ~0x1;
-
- /* Aspect ratio based on vsync */
- switch (vsync) {
- case 4:
- image_width = (image_height * 4) / 3;
- break;
- case 5:
- image_width = (image_height * 16) / 9;
- break;
- case 6:
- image_width = (image_height * 16) / 10;
- break;
- case 7:
- /* special case */
- if (image_height == 1024)
- image_width = (image_height * 5) / 4;
- else if (image_height == 768)
- image_width = (image_height * 15) / 9;
- else
- return false;
- break;
- default:
- return false;
- }
-
- image_width = image_width & ~7;
-
- /* Horizontal */
- if (reduced_blanking) {
- pix_clk = (image_width + CVT_RB_H_BLANK) * hfreq;
- pix_clk = (pix_clk / CVT_PXL_CLK_GRAN) * CVT_PXL_CLK_GRAN;
-
- h_bp = CVT_RB_H_BPORCH;
- hsync = CVT_RB_H_SYNC;
- h_fp = CVT_RB_H_BLANK - h_bp - hsync;
-
- frame_width = image_width + CVT_RB_H_BLANK;
- } else {
- int h_blank;
- unsigned ideal_duty_cycle = CVT_C_PRIME - (CVT_M_PRIME * 1000) / hfreq;
-
- h_blank = (image_width * ideal_duty_cycle + (100 - ideal_duty_cycle) / 2) /
- (100 - ideal_duty_cycle);
- h_blank = h_blank - h_blank % (2 * CVT_CELL_GRAN);
-
- if (h_blank * 100 / image_width < 20) {
- h_blank = image_width / 5;
- h_blank = (h_blank + 0x7) & ~0x7;
- }
-
- pix_clk = (image_width + h_blank) * hfreq;
- pix_clk = (pix_clk / CVT_PXL_CLK_GRAN) * CVT_PXL_CLK_GRAN;
-
- h_bp = h_blank / 2;
- frame_width = image_width + h_blank;
-
- hsync = (frame_width * 8 + 50) / 100;
- hsync = hsync - hsync % CVT_CELL_GRAN;
- h_fp = h_blank - hsync - h_bp;
- }
-
- fmt->bt.polarities = polarities;
- fmt->bt.width = image_width;
- fmt->bt.height = image_height;
- fmt->bt.hfrontporch = h_fp;
- fmt->bt.vfrontporch = v_fp;
- fmt->bt.hsync = hsync;
- fmt->bt.vsync = vsync;
- fmt->bt.hbackporch = frame_width - image_width - h_fp - hsync;
- fmt->bt.vbackporch = frame_height - image_height - v_fp - vsync;
- fmt->bt.pixelclock = pix_clk;
- fmt->bt.standards = V4L2_DV_BT_STD_CVT;
- if (reduced_blanking)
- fmt->bt.flags |= V4L2_DV_FL_REDUCED_BLANKING;
- return true;
-}
-EXPORT_SYMBOL_GPL(v4l2_detect_cvt);
-
-/*
- * GTF defines
- * Based on Generalized Timing Formula Standard
- * Version 1.1 September 2, 1999
- */
-
-#define GTF_PXL_CLK_GRAN 250000 /* pixel clock granularity */
-
-#define GTF_MIN_VSYNC_BP 550 /* min time of vsync + back porch (us) */
-#define GTF_V_FP 1 /* vertical front porch (lines) */
-#define GTF_CELL_GRAN 8 /* character cell granularity */
-
-/* Default */
-#define GTF_D_M 600 /* blanking formula gradient */
-#define GTF_D_C 40 /* blanking formula offset */
-#define GTF_D_K 128 /* blanking formula scaling factor */
-#define GTF_D_J 20 /* blanking formula scaling factor */
-#define GTF_D_C_PRIME ((((GTF_D_C - GTF_D_J) * GTF_D_K) / 256) + GTF_D_J)
-#define GTF_D_M_PRIME ((GTF_D_K * GTF_D_M) / 256)
-
-/* Secondary */
-#define GTF_S_M 3600 /* blanking formula gradient */
-#define GTF_S_C 40 /* blanking formula offset */
-#define GTF_S_K 128 /* blanking formula scaling factor */
-#define GTF_S_J 35 /* blanking formula scaling factor */
-#define GTF_S_C_PRIME ((((GTF_S_C - GTF_S_J) * GTF_S_K) / 256) + GTF_S_J)
-#define GTF_S_M_PRIME ((GTF_S_K * GTF_S_M) / 256)
-
-/** v4l2_detect_gtf - detect if the given timings follow the GTF standard
- * @frame_height - the total height of the frame (including blanking) in lines.
- * @hfreq - the horizontal frequency in Hz.
- * @vsync - the height of the vertical sync in lines.
- * @polarities - the horizontal and vertical polarities (same as struct
- * v4l2_bt_timings polarities).
- * @aspect - preferred aspect ratio. GTF has no method of determining the
- * aspect ratio in order to derive the image width from the
- * image height, so it has to be passed explicitly. Usually
- * the native screen aspect ratio is used for this. If it
- * is not filled in correctly, then 16:9 will be assumed.
- * @fmt - the resulting timings.
- *
- * This function will attempt to detect if the given values correspond to a
- * valid GTF format. If so, then it will return true, and fmt will be filled
- * in with the found GTF timings.
- */
-bool v4l2_detect_gtf(unsigned frame_height,
- unsigned hfreq,
- unsigned vsync,
- u32 polarities,
- struct v4l2_fract aspect,
- struct v4l2_dv_timings *fmt)
-{
- int pix_clk;
- int v_fp, v_bp, h_fp, hsync;
- int frame_width, image_height, image_width;
- bool default_gtf;
- int h_blank;
-
- if (vsync != 3)
- return false;
-
- if (polarities == V4L2_DV_VSYNC_POS_POL)
- default_gtf = true;
- else if (polarities == V4L2_DV_HSYNC_POS_POL)
- default_gtf = false;
- else
- return false;
-
- /* Vertical */
- v_fp = GTF_V_FP;
- v_bp = (GTF_MIN_VSYNC_BP * hfreq + 999999) / 1000000 - vsync;
- image_height = (frame_height - v_fp - vsync - v_bp + 1) & ~0x1;
-
- if (aspect.numerator == 0 || aspect.denominator == 0) {
- aspect.numerator = 16;
- aspect.denominator = 9;
- }
- image_width = ((image_height * aspect.numerator) / aspect.denominator);
-
- /* Horizontal */
- if (default_gtf)
- h_blank = ((image_width * GTF_D_C_PRIME * hfreq) -
- (image_width * GTF_D_M_PRIME * 1000) +
- (hfreq * (100 - GTF_D_C_PRIME) + GTF_D_M_PRIME * 1000) / 2) /
- (hfreq * (100 - GTF_D_C_PRIME) + GTF_D_M_PRIME * 1000);
- else
- h_blank = ((image_width * GTF_S_C_PRIME * hfreq) -
- (image_width * GTF_S_M_PRIME * 1000) +
- (hfreq * (100 - GTF_S_C_PRIME) + GTF_S_M_PRIME * 1000) / 2) /
- (hfreq * (100 - GTF_S_C_PRIME) + GTF_S_M_PRIME * 1000);
-
- h_blank = h_blank - h_blank % (2 * GTF_CELL_GRAN);
- frame_width = image_width + h_blank;
-
- pix_clk = (image_width + h_blank) * hfreq;
- pix_clk = pix_clk / GTF_PXL_CLK_GRAN * GTF_PXL_CLK_GRAN;
-
- hsync = (frame_width * 8 + 50) / 100;
- hsync = hsync - hsync % GTF_CELL_GRAN;
-
- h_fp = h_blank / 2 - hsync;
-
- fmt->bt.polarities = polarities;
- fmt->bt.width = image_width;
- fmt->bt.height = image_height;
- fmt->bt.hfrontporch = h_fp;
- fmt->bt.vfrontporch = v_fp;
- fmt->bt.hsync = hsync;
- fmt->bt.vsync = vsync;
- fmt->bt.hbackporch = frame_width - image_width - h_fp - hsync;
- fmt->bt.vbackporch = frame_height - image_height - v_fp - vsync;
- fmt->bt.pixelclock = pix_clk;
- fmt->bt.standards = V4L2_DV_BT_STD_GTF;
- if (!default_gtf)
- fmt->bt.flags |= V4L2_DV_FL_REDUCED_BLANKING;
- return true;
-}
-EXPORT_SYMBOL_GPL(v4l2_detect_gtf);
-
-/** v4l2_calc_aspect_ratio - calculate the aspect ratio based on bytes
- * 0x15 and 0x16 from the EDID.
- * @hor_landscape - byte 0x15 from the EDID.
- * @vert_portrait - byte 0x16 from the EDID.
- *
- * Determines the aspect ratio from the EDID.
- * See VESA Enhanced EDID standard, release A, rev 2, section 3.6.2:
- * "Horizontal and Vertical Screen Size or Aspect Ratio"
- */
-struct v4l2_fract v4l2_calc_aspect_ratio(u8 hor_landscape, u8 vert_portrait)
-{
- struct v4l2_fract aspect = { 16, 9 };
- u32 tmp;
- u8 ratio;
-
- /* Nothing filled in, fallback to 16:9 */
- if (!hor_landscape && !vert_portrait)
- return aspect;
- /* Both filled in, so they are interpreted as the screen size in cm */
- if (hor_landscape && vert_portrait) {
- aspect.numerator = hor_landscape;
- aspect.denominator = vert_portrait;
- return aspect;
- }
- /* Only one is filled in, so interpret them as a ratio:
- (val + 99) / 100 */
- ratio = hor_landscape | vert_portrait;
- /* Change some rounded values into the exact aspect ratio */
- if (ratio == 79) {
- aspect.numerator = 16;
- aspect.denominator = 9;
- } else if (ratio == 34) {
- aspect.numerator = 4;
- aspect.numerator = 3;
- } else if (ratio == 68) {
- aspect.numerator = 15;
- aspect.numerator = 9;
- } else {
- aspect.numerator = hor_landscape + 99;
- aspect.denominator = 100;
- }
- if (hor_landscape)
- return aspect;
- /* The aspect ratio is for portrait, so swap numerator and denominator */
- tmp = aspect.denominator;
- aspect.denominator = aspect.numerator;
- aspect.numerator = tmp;
- return aspect;
-}
-EXPORT_SYMBOL_GPL(v4l2_calc_aspect_ratio);
-
const struct v4l2_frmsize_discrete *v4l2_find_nearest_format(
const struct v4l2_discrete_probe *probe,
s32 width, s32 height)
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
return get_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced);
default:
- printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
+ printk(KERN_DEBUG "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
kp->type);
return -EINVAL;
}
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
return put_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced);
default:
- printk(KERN_INFO "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
+ printk(KERN_DEBUG "compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
kp->type);
return -EINVAL;
}
__u32 capability;
__u32 flags;
compat_caddr_t base;
- struct v4l2_pix_format fmt;
+ struct {
+ __u32 width;
+ __u32 height;
+ __u32 pixelformat;
+ __u32 field;
+ __u32 bytesperline;
+ __u32 sizeimage;
+ __u32 colorspace;
+ __u32 priv;
+ } fmt;
};
static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) ||
get_user(tmp, &up->base) ||
get_user(kp->capability, &up->capability) ||
- get_user(kp->flags, &up->flags))
+ get_user(kp->flags, &up->flags) ||
+ copy_from_user(&kp->fmt, &up->fmt, sizeof(up->fmt)))
return -EFAULT;
kp->base = compat_ptr(tmp);
- get_v4l2_pix_format(&kp->fmt, &up->fmt);
return 0;
}
if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) ||
put_user(tmp, &up->base) ||
put_user(kp->capability, &up->capability) ||
- put_user(kp->flags, &up->flags))
+ put_user(kp->flags, &up->flags) ||
+ copy_to_user(&up->fmt, &kp->fmt, sizeof(up->fmt)))
return -EFAULT;
- put_v4l2_pix_format(&kp->fmt, &up->fmt);
return 0;
}
return 0;
}
-struct v4l2_subdev_edid32 {
+struct v4l2_edid32 {
__u32 pad;
__u32 start_block;
__u32 blocks;
compat_caddr_t edid;
};
-static int get_v4l2_subdev_edid32(struct v4l2_subdev_edid *kp, struct v4l2_subdev_edid32 __user *up)
+static int get_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
{
u32 tmp;
- if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_subdev_edid32)) ||
+ if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_edid32)) ||
get_user(kp->pad, &up->pad) ||
get_user(kp->start_block, &up->start_block) ||
get_user(kp->blocks, &up->blocks) ||
return 0;
}
-static int put_v4l2_subdev_edid32(struct v4l2_subdev_edid *kp, struct v4l2_subdev_edid32 __user *up)
+static int put_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
{
u32 tmp = (u32)((unsigned long)kp->edid);
- if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_subdev_edid32)) ||
+ if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_edid32)) ||
put_user(kp->pad, &up->pad) ||
put_user(kp->start_block, &up->start_block) ||
put_user(kp->blocks, &up->blocks) ||
put_user(tmp, &up->edid) ||
- copy_to_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
+ copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved)))
return -EFAULT;
return 0;
}
#define VIDIOC_DQBUF32 _IOWR('V', 17, struct v4l2_buffer32)
#define VIDIOC_ENUMSTD32 _IOWR('V', 25, struct v4l2_standard32)
#define VIDIOC_ENUMINPUT32 _IOWR('V', 26, struct v4l2_input32)
-#define VIDIOC_SUBDEV_G_EDID32 _IOWR('V', 40, struct v4l2_subdev_edid32)
-#define VIDIOC_SUBDEV_S_EDID32 _IOWR('V', 41, struct v4l2_subdev_edid32)
+#define VIDIOC_G_EDID32 _IOWR('V', 40, struct v4l2_edid32)
+#define VIDIOC_S_EDID32 _IOWR('V', 41, struct v4l2_edid32)
#define VIDIOC_TRY_FMT32 _IOWR('V', 64, struct v4l2_format32)
#define VIDIOC_G_EXT_CTRLS32 _IOWR('V', 71, struct v4l2_ext_controls32)
#define VIDIOC_S_EXT_CTRLS32 _IOWR('V', 72, struct v4l2_ext_controls32)
struct v4l2_ext_controls v2ecs;
struct v4l2_event v2ev;
struct v4l2_create_buffers v2crt;
- struct v4l2_subdev_edid v2edid;
+ struct v4l2_edid v2edid;
unsigned long vx;
int vi;
} karg;
case _IOC_NR(VIDIOC_S_OUTPUT32): cmd = VIDIOC_S_OUTPUT; break;
case _IOC_NR(VIDIOC_CREATE_BUFS32): cmd = VIDIOC_CREATE_BUFS; break;
case _IOC_NR(VIDIOC_PREPARE_BUF32): cmd = VIDIOC_PREPARE_BUF; break;
- case _IOC_NR(VIDIOC_SUBDEV_G_EDID32): cmd = VIDIOC_SUBDEV_G_EDID; break;
- case _IOC_NR(VIDIOC_SUBDEV_S_EDID32): cmd = VIDIOC_SUBDEV_S_EDID; break;
+ case _IOC_NR(VIDIOC_G_EDID32): cmd = VIDIOC_G_EDID; break;
+ case _IOC_NR(VIDIOC_S_EDID32): cmd = VIDIOC_S_EDID; break;
}
switch (_IOC_NR(cmd)) {
compatible_arg = 0;
break;
- case _IOC_NR(VIDIOC_SUBDEV_G_EDID):
- case _IOC_NR(VIDIOC_SUBDEV_S_EDID):
- err = get_v4l2_subdev_edid32(&karg.v2edid, up);
+ case _IOC_NR(VIDIOC_G_EDID):
+ case _IOC_NR(VIDIOC_S_EDID):
+ err = get_v4l2_edid32(&karg.v2edid, up);
compatible_arg = 0;
break;
err = put_v4l2_event32(&karg.v2ev, up);
break;
- case _IOC_NR(VIDIOC_SUBDEV_G_EDID):
- case _IOC_NR(VIDIOC_SUBDEV_S_EDID):
- err = put_v4l2_subdev_edid32(&karg.v2edid, up);
+ case _IOC_NR(VIDIOC_G_EDID):
+ case _IOC_NR(VIDIOC_S_EDID):
+ err = put_v4l2_edid32(&karg.v2edid, up);
break;
case _IOC_NR(VIDIOC_G_FMT):
case _IOC_NR(VIDIOC_QUERY_DV_TIMINGS):
case _IOC_NR(VIDIOC_DV_TIMINGS_CAP):
case _IOC_NR(VIDIOC_ENUM_FREQ_BANDS):
- case _IOC_NR(VIDIOC_SUBDEV_G_EDID32):
- case _IOC_NR(VIDIOC_SUBDEV_S_EDID32):
+ case _IOC_NR(VIDIOC_G_EDID32):
+ case _IOC_NR(VIDIOC_S_EDID32):
ret = do_video_ioctl(file, cmd, arg);
break;
ret = vdev->fops->compat_ioctl32(file, cmd, arg);
if (ret == -ENOIOCTLCMD)
- printk(KERN_WARNING "compat_ioctl32: "
+ printk(KERN_DEBUG "compat_ioctl32: "
"unknown ioctl '%c', dir=%d, #%d (0x%08x)\n",
_IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd),
cmd);
SET_VALID_IOCTL(ops, VIDIOC_G_AUDIO, vidioc_g_audio);
SET_VALID_IOCTL(ops, VIDIOC_S_AUDIO, vidioc_s_audio);
SET_VALID_IOCTL(ops, VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings);
+ SET_VALID_IOCTL(ops, VIDIOC_S_EDID, vidioc_s_edid);
}
if (is_tx) {
SET_VALID_IOCTL(ops, VIDIOC_ENUMOUTPUT, vidioc_enum_output);
SET_VALID_IOCTL(ops, VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings);
SET_VALID_IOCTL(ops, VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings);
SET_VALID_IOCTL(ops, VIDIOC_DV_TIMINGS_CAP, vidioc_dv_timings_cap);
+ SET_VALID_IOCTL(ops, VIDIOC_G_EDID, vidioc_g_edid);
}
if (is_tx) {
/* transmitter only ioctls */
--- /dev/null
+/*
+ * v4l2-dv-timings - dv-timings helper functions
+ *
+ * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/videodev2.h>
+#include <linux/v4l2-dv-timings.h>
+#include <media/v4l2-dv-timings.h>
+#include <linux/math64.h>
+
+MODULE_AUTHOR("Hans Verkuil");
+MODULE_DESCRIPTION("V4L2 DV Timings Helper Functions");
+MODULE_LICENSE("GPL");
+
+const struct v4l2_dv_timings v4l2_dv_timings_presets[] = {
+ V4L2_DV_BT_CEA_640X480P59_94,
+ V4L2_DV_BT_CEA_720X480I59_94,
+ V4L2_DV_BT_CEA_720X480P59_94,
+ V4L2_DV_BT_CEA_720X576I50,
+ V4L2_DV_BT_CEA_720X576P50,
+ V4L2_DV_BT_CEA_1280X720P24,
+ V4L2_DV_BT_CEA_1280X720P25,
+ V4L2_DV_BT_CEA_1280X720P30,
+ V4L2_DV_BT_CEA_1280X720P50,
+ V4L2_DV_BT_CEA_1280X720P60,
+ V4L2_DV_BT_CEA_1920X1080P24,
+ V4L2_DV_BT_CEA_1920X1080P25,
+ V4L2_DV_BT_CEA_1920X1080P30,
+ V4L2_DV_BT_CEA_1920X1080I50,
+ V4L2_DV_BT_CEA_1920X1080P50,
+ V4L2_DV_BT_CEA_1920X1080I60,
+ V4L2_DV_BT_CEA_1920X1080P60,
+ V4L2_DV_BT_DMT_640X350P85,
+ V4L2_DV_BT_DMT_640X400P85,
+ V4L2_DV_BT_DMT_720X400P85,
+ V4L2_DV_BT_DMT_640X480P72,
+ V4L2_DV_BT_DMT_640X480P75,
+ V4L2_DV_BT_DMT_640X480P85,
+ V4L2_DV_BT_DMT_800X600P56,
+ V4L2_DV_BT_DMT_800X600P60,
+ V4L2_DV_BT_DMT_800X600P72,
+ V4L2_DV_BT_DMT_800X600P75,
+ V4L2_DV_BT_DMT_800X600P85,
+ V4L2_DV_BT_DMT_800X600P120_RB,
+ V4L2_DV_BT_DMT_848X480P60,
+ V4L2_DV_BT_DMT_1024X768I43,
+ V4L2_DV_BT_DMT_1024X768P60,
+ V4L2_DV_BT_DMT_1024X768P70,
+ V4L2_DV_BT_DMT_1024X768P75,
+ V4L2_DV_BT_DMT_1024X768P85,
+ V4L2_DV_BT_DMT_1024X768P120_RB,
+ V4L2_DV_BT_DMT_1152X864P75,
+ V4L2_DV_BT_DMT_1280X768P60_RB,
+ V4L2_DV_BT_DMT_1280X768P60,
+ V4L2_DV_BT_DMT_1280X768P75,
+ V4L2_DV_BT_DMT_1280X768P85,
+ V4L2_DV_BT_DMT_1280X768P120_RB,
+ V4L2_DV_BT_DMT_1280X800P60_RB,
+ V4L2_DV_BT_DMT_1280X800P60,
+ V4L2_DV_BT_DMT_1280X800P75,
+ V4L2_DV_BT_DMT_1280X800P85,
+ V4L2_DV_BT_DMT_1280X800P120_RB,
+ V4L2_DV_BT_DMT_1280X960P60,
+ V4L2_DV_BT_DMT_1280X960P85,
+ V4L2_DV_BT_DMT_1280X960P120_RB,
+ V4L2_DV_BT_DMT_1280X1024P60,
+ V4L2_DV_BT_DMT_1280X1024P75,
+ V4L2_DV_BT_DMT_1280X1024P85,
+ V4L2_DV_BT_DMT_1280X1024P120_RB,
+ V4L2_DV_BT_DMT_1360X768P60,
+ V4L2_DV_BT_DMT_1360X768P120_RB,
+ V4L2_DV_BT_DMT_1366X768P60,
+ V4L2_DV_BT_DMT_1366X768P60_RB,
+ V4L2_DV_BT_DMT_1400X1050P60_RB,
+ V4L2_DV_BT_DMT_1400X1050P60,
+ V4L2_DV_BT_DMT_1400X1050P75,
+ V4L2_DV_BT_DMT_1400X1050P85,
+ V4L2_DV_BT_DMT_1400X1050P120_RB,
+ V4L2_DV_BT_DMT_1440X900P60_RB,
+ V4L2_DV_BT_DMT_1440X900P60,
+ V4L2_DV_BT_DMT_1440X900P75,
+ V4L2_DV_BT_DMT_1440X900P85,
+ V4L2_DV_BT_DMT_1440X900P120_RB,
+ V4L2_DV_BT_DMT_1600X900P60_RB,
+ V4L2_DV_BT_DMT_1600X1200P60,
+ V4L2_DV_BT_DMT_1600X1200P65,
+ V4L2_DV_BT_DMT_1600X1200P70,
+ V4L2_DV_BT_DMT_1600X1200P75,
+ V4L2_DV_BT_DMT_1600X1200P85,
+ V4L2_DV_BT_DMT_1600X1200P120_RB,
+ V4L2_DV_BT_DMT_1680X1050P60_RB,
+ V4L2_DV_BT_DMT_1680X1050P60,
+ V4L2_DV_BT_DMT_1680X1050P75,
+ V4L2_DV_BT_DMT_1680X1050P85,
+ V4L2_DV_BT_DMT_1680X1050P120_RB,
+ V4L2_DV_BT_DMT_1792X1344P60,
+ V4L2_DV_BT_DMT_1792X1344P75,
+ V4L2_DV_BT_DMT_1792X1344P120_RB,
+ V4L2_DV_BT_DMT_1856X1392P60,
+ V4L2_DV_BT_DMT_1856X1392P75,
+ V4L2_DV_BT_DMT_1856X1392P120_RB,
+ V4L2_DV_BT_DMT_1920X1200P60_RB,
+ V4L2_DV_BT_DMT_1920X1200P60,
+ V4L2_DV_BT_DMT_1920X1200P75,
+ V4L2_DV_BT_DMT_1920X1200P85,
+ V4L2_DV_BT_DMT_1920X1200P120_RB,
+ V4L2_DV_BT_DMT_1920X1440P60,
+ V4L2_DV_BT_DMT_1920X1440P75,
+ V4L2_DV_BT_DMT_1920X1440P120_RB,
+ V4L2_DV_BT_DMT_2048X1152P60_RB,
+ V4L2_DV_BT_DMT_2560X1600P60_RB,
+ V4L2_DV_BT_DMT_2560X1600P60,
+ V4L2_DV_BT_DMT_2560X1600P75,
+ V4L2_DV_BT_DMT_2560X1600P85,
+ V4L2_DV_BT_DMT_2560X1600P120_RB,
+ V4L2_DV_BT_CEA_3840X2160P24,
+ V4L2_DV_BT_CEA_3840X2160P25,
+ V4L2_DV_BT_CEA_3840X2160P30,
+ V4L2_DV_BT_CEA_3840X2160P50,
+ V4L2_DV_BT_CEA_3840X2160P60,
+ V4L2_DV_BT_CEA_4096X2160P24,
+ V4L2_DV_BT_CEA_4096X2160P25,
+ V4L2_DV_BT_CEA_4096X2160P30,
+ V4L2_DV_BT_CEA_4096X2160P50,
+ V4L2_DV_BT_DMT_4096X2160P59_94_RB,
+ V4L2_DV_BT_CEA_4096X2160P60,
+ { }
+};
+EXPORT_SYMBOL_GPL(v4l2_dv_timings_presets);
+
+bool v4l2_valid_dv_timings(const struct v4l2_dv_timings *t,
+ const struct v4l2_dv_timings_cap *dvcap,
+ v4l2_check_dv_timings_fnc fnc,
+ void *fnc_handle)
+{
+ const struct v4l2_bt_timings *bt = &t->bt;
+ const struct v4l2_bt_timings_cap *cap = &dvcap->bt;
+ u32 caps = cap->capabilities;
+
+ if (t->type != V4L2_DV_BT_656_1120)
+ return false;
+ if (t->type != dvcap->type ||
+ bt->height < cap->min_height ||
+ bt->height > cap->max_height ||
+ bt->width < cap->min_width ||
+ bt->width > cap->max_width ||
+ bt->pixelclock < cap->min_pixelclock ||
+ bt->pixelclock > cap->max_pixelclock ||
+ (cap->standards && bt->standards &&
+ !(bt->standards & cap->standards)) ||
+ (bt->interlaced && !(caps & V4L2_DV_BT_CAP_INTERLACED)) ||
+ (!bt->interlaced && !(caps & V4L2_DV_BT_CAP_PROGRESSIVE)))
+ return false;
+ return fnc == NULL || fnc(t, fnc_handle);
+}
+EXPORT_SYMBOL_GPL(v4l2_valid_dv_timings);
+
+int v4l2_enum_dv_timings_cap(struct v4l2_enum_dv_timings *t,
+ const struct v4l2_dv_timings_cap *cap,
+ v4l2_check_dv_timings_fnc fnc,
+ void *fnc_handle)
+{
+ u32 i, idx;
+
+ memset(t->reserved, 0, sizeof(t->reserved));
+ for (i = idx = 0; v4l2_dv_timings_presets[i].bt.width; i++) {
+ if (v4l2_valid_dv_timings(v4l2_dv_timings_presets + i, cap,
+ fnc, fnc_handle) &&
+ idx++ == t->index) {
+ t->timings = v4l2_dv_timings_presets[i];
+ return 0;
+ }
+ }
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(v4l2_enum_dv_timings_cap);
+
+bool v4l2_find_dv_timings_cap(struct v4l2_dv_timings *t,
+ const struct v4l2_dv_timings_cap *cap,
+ unsigned pclock_delta,
+ v4l2_check_dv_timings_fnc fnc,
+ void *fnc_handle)
+{
+ int i;
+
+ if (!v4l2_valid_dv_timings(t, cap, fnc, fnc_handle))
+ return false;
+
+ for (i = 0; i < v4l2_dv_timings_presets[i].bt.width; i++) {
+ if (v4l2_valid_dv_timings(v4l2_dv_timings_presets + i, cap,
+ fnc, fnc_handle) &&
+ v4l2_match_dv_timings(t, v4l2_dv_timings_presets + i,
+ pclock_delta)) {
+ *t = v4l2_dv_timings_presets[i];
+ return true;
+ }
+ }
+ return false;
+}
+EXPORT_SYMBOL_GPL(v4l2_find_dv_timings_cap);
+
+/**
+ * v4l2_match_dv_timings - check if two timings match
+ * @t1 - compare this v4l2_dv_timings struct...
+ * @t2 - with this struct.
+ * @pclock_delta - the allowed pixelclock deviation.
+ *
+ * Compare t1 with t2 with a given margin of error for the pixelclock.
+ */
+bool v4l2_match_dv_timings(const struct v4l2_dv_timings *t1,
+ const struct v4l2_dv_timings *t2,
+ unsigned pclock_delta)
+{
+ if (t1->type != t2->type || t1->type != V4L2_DV_BT_656_1120)
+ return false;
+ if (t1->bt.width == t2->bt.width &&
+ t1->bt.height == t2->bt.height &&
+ t1->bt.interlaced == t2->bt.interlaced &&
+ t1->bt.polarities == t2->bt.polarities &&
+ t1->bt.pixelclock >= t2->bt.pixelclock - pclock_delta &&
+ t1->bt.pixelclock <= t2->bt.pixelclock + pclock_delta &&
+ t1->bt.hfrontporch == t2->bt.hfrontporch &&
+ t1->bt.vfrontporch == t2->bt.vfrontporch &&
+ t1->bt.vsync == t2->bt.vsync &&
+ t1->bt.vbackporch == t2->bt.vbackporch &&
+ (!t1->bt.interlaced ||
+ (t1->bt.il_vfrontporch == t2->bt.il_vfrontporch &&
+ t1->bt.il_vsync == t2->bt.il_vsync &&
+ t1->bt.il_vbackporch == t2->bt.il_vbackporch)))
+ return true;
+ return false;
+}
+EXPORT_SYMBOL_GPL(v4l2_match_dv_timings);
+
+void v4l2_print_dv_timings(const char *dev_prefix, const char *prefix,
+ const struct v4l2_dv_timings *t, bool detailed)
+{
+ const struct v4l2_bt_timings *bt = &t->bt;
+ u32 htot, vtot;
+ u32 fps;
+
+ if (t->type != V4L2_DV_BT_656_1120)
+ return;
+
+ htot = V4L2_DV_BT_FRAME_WIDTH(bt);
+ vtot = V4L2_DV_BT_FRAME_HEIGHT(bt);
+ if (bt->interlaced)
+ vtot /= 2;
+
+ fps = (htot * vtot) > 0 ? div_u64((100 * (u64)bt->pixelclock),
+ (htot * vtot)) : 0;
+
+ if (prefix == NULL)
+ prefix = "";
+
+ pr_info("%s: %s%ux%u%s%u.%u (%ux%u)\n", dev_prefix, prefix,
+ bt->width, bt->height, bt->interlaced ? "i" : "p",
+ fps / 100, fps % 100, htot, vtot);
+
+ if (!detailed)
+ return;
+
+ pr_info("%s: horizontal: fp = %u, %ssync = %u, bp = %u\n",
+ dev_prefix, bt->hfrontporch,
+ (bt->polarities & V4L2_DV_HSYNC_POS_POL) ? "+" : "-",
+ bt->hsync, bt->hbackporch);
+ pr_info("%s: vertical: fp = %u, %ssync = %u, bp = %u\n",
+ dev_prefix, bt->vfrontporch,
+ (bt->polarities & V4L2_DV_VSYNC_POS_POL) ? "+" : "-",
+ bt->vsync, bt->vbackporch);
+ if (bt->interlaced)
+ pr_info("%s: vertical bottom field: fp = %u, %ssync = %u, bp = %u\n",
+ dev_prefix, bt->il_vfrontporch,
+ (bt->polarities & V4L2_DV_VSYNC_POS_POL) ? "+" : "-",
+ bt->il_vsync, bt->il_vbackporch);
+ pr_info("%s: pixelclock: %llu\n", dev_prefix, bt->pixelclock);
+ pr_info("%s: flags (0x%x):%s%s%s%s%s%s\n", dev_prefix, bt->flags,
+ (bt->flags & V4L2_DV_FL_REDUCED_BLANKING) ?
+ " REDUCED_BLANKING" : "",
+ ((bt->flags & V4L2_DV_FL_REDUCED_BLANKING) &&
+ bt->vsync == 8) ? " (V2)" : "",
+ (bt->flags & V4L2_DV_FL_CAN_REDUCE_FPS) ?
+ " CAN_REDUCE_FPS" : "",
+ (bt->flags & V4L2_DV_FL_REDUCED_FPS) ?
+ " REDUCED_FPS" : "",
+ (bt->flags & V4L2_DV_FL_HALF_LINE) ?
+ " HALF_LINE" : "",
+ (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) ?
+ " CE_VIDEO" : "");
+ pr_info("%s: standards (0x%x):%s%s%s%s\n", dev_prefix, bt->standards,
+ (bt->standards & V4L2_DV_BT_STD_CEA861) ? " CEA" : "",
+ (bt->standards & V4L2_DV_BT_STD_DMT) ? " DMT" : "",
+ (bt->standards & V4L2_DV_BT_STD_CVT) ? " CVT" : "",
+ (bt->standards & V4L2_DV_BT_STD_GTF) ? " GTF" : "");
+}
+EXPORT_SYMBOL_GPL(v4l2_print_dv_timings);
+
+/*
+ * CVT defines
+ * Based on Coordinated Video Timings Standard
+ * version 1.1 September 10, 2003
+ */
+
+#define CVT_PXL_CLK_GRAN 250000 /* pixel clock granularity */
+#define CVT_PXL_CLK_GRAN_RB_V2 1000 /* granularity for reduced blanking v2*/
+
+/* Normal blanking */
+#define CVT_MIN_V_BPORCH 7 /* lines */
+#define CVT_MIN_V_PORCH_RND 3 /* lines */
+#define CVT_MIN_VSYNC_BP 550 /* min time of vsync + back porch (us) */
+#define CVT_HSYNC_PERCENT 8 /* nominal hsync as percentage of line */
+
+/* Normal blanking for CVT uses GTF to calculate horizontal blanking */
+#define CVT_CELL_GRAN 8 /* character cell granularity */
+#define CVT_M 600 /* blanking formula gradient */
+#define CVT_C 40 /* blanking formula offset */
+#define CVT_K 128 /* blanking formula scaling factor */
+#define CVT_J 20 /* blanking formula scaling factor */
+#define CVT_C_PRIME (((CVT_C - CVT_J) * CVT_K / 256) + CVT_J)
+#define CVT_M_PRIME (CVT_K * CVT_M / 256)
+
+/* Reduced Blanking */
+#define CVT_RB_MIN_V_BPORCH 7 /* lines */
+#define CVT_RB_V_FPORCH 3 /* lines */
+#define CVT_RB_MIN_V_BLANK 460 /* us */
+#define CVT_RB_H_SYNC 32 /* pixels */
+#define CVT_RB_H_BLANK 160 /* pixels */
+/* Reduce blanking Version 2 */
+#define CVT_RB_V2_H_BLANK 80 /* pixels */
+#define CVT_RB_MIN_V_FPORCH 3 /* lines */
+#define CVT_RB_V2_MIN_V_FPORCH 1 /* lines */
+#define CVT_RB_V_BPORCH 6 /* lines */
+
+/** v4l2_detect_cvt - detect if the given timings follow the CVT standard
+ * @frame_height - the total height of the frame (including blanking) in lines.
+ * @hfreq - the horizontal frequency in Hz.
+ * @vsync - the height of the vertical sync in lines.
+ * @active_width - active width of image (does not include blanking). This
+ * information is needed only in case of version 2 of reduced blanking.
+ * In other cases, this parameter does not have any effect on timings.
+ * @polarities - the horizontal and vertical polarities (same as struct
+ * v4l2_bt_timings polarities).
+ * @interlaced - if this flag is true, it indicates interlaced format
+ * @fmt - the resulting timings.
+ *
+ * This function will attempt to detect if the given values correspond to a
+ * valid CVT format. If so, then it will return true, and fmt will be filled
+ * in with the found CVT timings.
+ */
+bool v4l2_detect_cvt(unsigned frame_height,
+ unsigned hfreq,
+ unsigned vsync,
+ unsigned active_width,
+ u32 polarities,
+ bool interlaced,
+ struct v4l2_dv_timings *fmt)
+{
+ int v_fp, v_bp, h_fp, h_bp, hsync;
+ int frame_width, image_height, image_width;
+ bool reduced_blanking;
+ bool rb_v2 = false;
+ unsigned pix_clk;
+
+ if (vsync < 4 || vsync > 8)
+ return false;
+
+ if (polarities == V4L2_DV_VSYNC_POS_POL)
+ reduced_blanking = false;
+ else if (polarities == V4L2_DV_HSYNC_POS_POL)
+ reduced_blanking = true;
+ else
+ return false;
+
+ if (reduced_blanking && vsync == 8)
+ rb_v2 = true;
+
+ if (rb_v2 && active_width == 0)
+ return false;
+
+ if (!rb_v2 && vsync > 7)
+ return false;
+
+ if (hfreq == 0)
+ return false;
+
+ /* Vertical */
+ if (reduced_blanking) {
+ if (rb_v2) {
+ v_bp = CVT_RB_V_BPORCH;
+ v_fp = (CVT_RB_MIN_V_BLANK * hfreq) / 1000000 + 1;
+ v_fp -= vsync + v_bp;
+
+ if (v_fp < CVT_RB_V2_MIN_V_FPORCH)
+ v_fp = CVT_RB_V2_MIN_V_FPORCH;
+ } else {
+ v_fp = CVT_RB_V_FPORCH;
+ v_bp = (CVT_RB_MIN_V_BLANK * hfreq) / 1000000 + 1;
+ v_bp -= vsync + v_fp;
+
+ if (v_bp < CVT_RB_MIN_V_BPORCH)
+ v_bp = CVT_RB_MIN_V_BPORCH;
+ }
+ } else {
+ v_fp = CVT_MIN_V_PORCH_RND;
+ v_bp = (CVT_MIN_VSYNC_BP * hfreq) / 1000000 + 1 - vsync;
+
+ if (v_bp < CVT_MIN_V_BPORCH)
+ v_bp = CVT_MIN_V_BPORCH;
+ }
+
+ if (interlaced)
+ image_height = (frame_height - 2 * v_fp - 2 * vsync - 2 * v_bp) & ~0x1;
+ else
+ image_height = (frame_height - v_fp - vsync - v_bp + 1) & ~0x1;
+
+ if (image_height < 0)
+ return false;
+
+ /* Aspect ratio based on vsync */
+ switch (vsync) {
+ case 4:
+ image_width = (image_height * 4) / 3;
+ break;
+ case 5:
+ image_width = (image_height * 16) / 9;
+ break;
+ case 6:
+ image_width = (image_height * 16) / 10;
+ break;
+ case 7:
+ /* special case */
+ if (image_height == 1024)
+ image_width = (image_height * 5) / 4;
+ else if (image_height == 768)
+ image_width = (image_height * 15) / 9;
+ else
+ return false;
+ break;
+ case 8:
+ image_width = active_width;
+ break;
+ default:
+ return false;
+ }
+
+ if (!rb_v2)
+ image_width = image_width & ~7;
+
+ /* Horizontal */
+ if (reduced_blanking) {
+ int h_blank;
+ int clk_gran;
+
+ h_blank = rb_v2 ? CVT_RB_V2_H_BLANK : CVT_RB_H_BLANK;
+ clk_gran = rb_v2 ? CVT_PXL_CLK_GRAN_RB_V2 : CVT_PXL_CLK_GRAN;
+
+ pix_clk = (image_width + h_blank) * hfreq;
+ pix_clk = (pix_clk / clk_gran) * clk_gran;
+
+ h_bp = h_blank / 2;
+ hsync = CVT_RB_H_SYNC;
+ h_fp = h_blank - h_bp - hsync;
+
+ frame_width = image_width + h_blank;
+ } else {
+ unsigned ideal_duty_cycle_per_myriad =
+ 100 * CVT_C_PRIME - (CVT_M_PRIME * 100000) / hfreq;
+ int h_blank;
+
+ if (ideal_duty_cycle_per_myriad < 2000)
+ ideal_duty_cycle_per_myriad = 2000;
+
+ h_blank = image_width * ideal_duty_cycle_per_myriad /
+ (10000 - ideal_duty_cycle_per_myriad);
+ h_blank = (h_blank / (2 * CVT_CELL_GRAN)) * 2 * CVT_CELL_GRAN;
+
+ pix_clk = (image_width + h_blank) * hfreq;
+ pix_clk = (pix_clk / CVT_PXL_CLK_GRAN) * CVT_PXL_CLK_GRAN;
+
+ h_bp = h_blank / 2;
+ frame_width = image_width + h_blank;
+
+ hsync = frame_width * CVT_HSYNC_PERCENT / 100;
+ hsync = (hsync / CVT_CELL_GRAN) * CVT_CELL_GRAN;
+ h_fp = h_blank - hsync - h_bp;
+ }
+
+ fmt->type = V4L2_DV_BT_656_1120;
+ fmt->bt.polarities = polarities;
+ fmt->bt.width = image_width;
+ fmt->bt.height = image_height;
+ fmt->bt.hfrontporch = h_fp;
+ fmt->bt.vfrontporch = v_fp;
+ fmt->bt.hsync = hsync;
+ fmt->bt.vsync = vsync;
+ fmt->bt.hbackporch = frame_width - image_width - h_fp - hsync;
+
+ if (!interlaced) {
+ fmt->bt.vbackporch = frame_height - image_height - v_fp - vsync;
+ fmt->bt.interlaced = V4L2_DV_PROGRESSIVE;
+ } else {
+ fmt->bt.vbackporch = (frame_height - image_height - 2 * v_fp -
+ 2 * vsync) / 2;
+ fmt->bt.il_vbackporch = frame_height - image_height - 2 * v_fp -
+ 2 * vsync - fmt->bt.vbackporch;
+ fmt->bt.il_vfrontporch = v_fp;
+ fmt->bt.il_vsync = vsync;
+ fmt->bt.flags |= V4L2_DV_FL_HALF_LINE;
+ fmt->bt.interlaced = V4L2_DV_INTERLACED;
+ }
+
+ fmt->bt.pixelclock = pix_clk;
+ fmt->bt.standards = V4L2_DV_BT_STD_CVT;
+
+ if (reduced_blanking)
+ fmt->bt.flags |= V4L2_DV_FL_REDUCED_BLANKING;
+
+ return true;
+}
+EXPORT_SYMBOL_GPL(v4l2_detect_cvt);
+
+/*
+ * GTF defines
+ * Based on Generalized Timing Formula Standard
+ * Version 1.1 September 2, 1999
+ */
+
+#define GTF_PXL_CLK_GRAN 250000 /* pixel clock granularity */
+
+#define GTF_MIN_VSYNC_BP 550 /* min time of vsync + back porch (us) */
+#define GTF_V_FP 1 /* vertical front porch (lines) */
+#define GTF_CELL_GRAN 8 /* character cell granularity */
+
+/* Default */
+#define GTF_D_M 600 /* blanking formula gradient */
+#define GTF_D_C 40 /* blanking formula offset */
+#define GTF_D_K 128 /* blanking formula scaling factor */
+#define GTF_D_J 20 /* blanking formula scaling factor */
+#define GTF_D_C_PRIME ((((GTF_D_C - GTF_D_J) * GTF_D_K) / 256) + GTF_D_J)
+#define GTF_D_M_PRIME ((GTF_D_K * GTF_D_M) / 256)
+
+/* Secondary */
+#define GTF_S_M 3600 /* blanking formula gradient */
+#define GTF_S_C 40 /* blanking formula offset */
+#define GTF_S_K 128 /* blanking formula scaling factor */
+#define GTF_S_J 35 /* blanking formula scaling factor */
+#define GTF_S_C_PRIME ((((GTF_S_C - GTF_S_J) * GTF_S_K) / 256) + GTF_S_J)
+#define GTF_S_M_PRIME ((GTF_S_K * GTF_S_M) / 256)
+
+/** v4l2_detect_gtf - detect if the given timings follow the GTF standard
+ * @frame_height - the total height of the frame (including blanking) in lines.
+ * @hfreq - the horizontal frequency in Hz.
+ * @vsync - the height of the vertical sync in lines.
+ * @polarities - the horizontal and vertical polarities (same as struct
+ * v4l2_bt_timings polarities).
+ * @interlaced - if this flag is true, it indicates interlaced format
+ * @aspect - preferred aspect ratio. GTF has no method of determining the
+ * aspect ratio in order to derive the image width from the
+ * image height, so it has to be passed explicitly. Usually
+ * the native screen aspect ratio is used for this. If it
+ * is not filled in correctly, then 16:9 will be assumed.
+ * @fmt - the resulting timings.
+ *
+ * This function will attempt to detect if the given values correspond to a
+ * valid GTF format. If so, then it will return true, and fmt will be filled
+ * in with the found GTF timings.
+ */
+bool v4l2_detect_gtf(unsigned frame_height,
+ unsigned hfreq,
+ unsigned vsync,
+ u32 polarities,
+ bool interlaced,
+ struct v4l2_fract aspect,
+ struct v4l2_dv_timings *fmt)
+{
+ int pix_clk;
+ int v_fp, v_bp, h_fp, hsync;
+ int frame_width, image_height, image_width;
+ bool default_gtf;
+ int h_blank;
+
+ if (vsync != 3)
+ return false;
+
+ if (polarities == V4L2_DV_VSYNC_POS_POL)
+ default_gtf = true;
+ else if (polarities == V4L2_DV_HSYNC_POS_POL)
+ default_gtf = false;
+ else
+ return false;
+
+ if (hfreq == 0)
+ return false;
+
+ /* Vertical */
+ v_fp = GTF_V_FP;
+ v_bp = (GTF_MIN_VSYNC_BP * hfreq + 500000) / 1000000 - vsync;
+ if (interlaced)
+ image_height = (frame_height - 2 * v_fp - 2 * vsync - 2 * v_bp) & ~0x1;
+ else
+ image_height = (frame_height - v_fp - vsync - v_bp + 1) & ~0x1;
+
+ if (image_height < 0)
+ return false;
+
+ if (aspect.numerator == 0 || aspect.denominator == 0) {
+ aspect.numerator = 16;
+ aspect.denominator = 9;
+ }
+ image_width = ((image_height * aspect.numerator) / aspect.denominator);
+ image_width = (image_width + GTF_CELL_GRAN/2) & ~(GTF_CELL_GRAN - 1);
+
+ /* Horizontal */
+ if (default_gtf) {
+ u64 num;
+ u32 den;
+
+ num = ((image_width * GTF_D_C_PRIME * (u64)hfreq) -
+ ((u64)image_width * GTF_D_M_PRIME * 1000));
+ den = (hfreq * (100 - GTF_D_C_PRIME) + GTF_D_M_PRIME * 1000) *
+ (2 * GTF_CELL_GRAN);
+ h_blank = div_u64((num + (den >> 1)), den);
+ h_blank *= (2 * GTF_CELL_GRAN);
+ } else {
+ u64 num;
+ u32 den;
+
+ num = ((image_width * GTF_S_C_PRIME * (u64)hfreq) -
+ ((u64)image_width * GTF_S_M_PRIME * 1000));
+ den = (hfreq * (100 - GTF_S_C_PRIME) + GTF_S_M_PRIME * 1000) *
+ (2 * GTF_CELL_GRAN);
+ h_blank = div_u64((num + (den >> 1)), den);
+ h_blank *= (2 * GTF_CELL_GRAN);
+ }
+
+ frame_width = image_width + h_blank;
+
+ pix_clk = (image_width + h_blank) * hfreq;
+ pix_clk = pix_clk / GTF_PXL_CLK_GRAN * GTF_PXL_CLK_GRAN;
+
+ hsync = (frame_width * 8 + 50) / 100;
+ hsync = ((hsync + GTF_CELL_GRAN / 2) / GTF_CELL_GRAN) * GTF_CELL_GRAN;
+
+ h_fp = h_blank / 2 - hsync;
+
+ fmt->type = V4L2_DV_BT_656_1120;
+ fmt->bt.polarities = polarities;
+ fmt->bt.width = image_width;
+ fmt->bt.height = image_height;
+ fmt->bt.hfrontporch = h_fp;
+ fmt->bt.vfrontporch = v_fp;
+ fmt->bt.hsync = hsync;
+ fmt->bt.vsync = vsync;
+ fmt->bt.hbackporch = frame_width - image_width - h_fp - hsync;
+
+ if (!interlaced) {
+ fmt->bt.vbackporch = frame_height - image_height - v_fp - vsync;
+ fmt->bt.interlaced = V4L2_DV_PROGRESSIVE;
+ } else {
+ fmt->bt.vbackporch = (frame_height - image_height - 2 * v_fp -
+ 2 * vsync) / 2;
+ fmt->bt.il_vbackporch = frame_height - image_height - 2 * v_fp -
+ 2 * vsync - fmt->bt.vbackporch;
+ fmt->bt.il_vfrontporch = v_fp;
+ fmt->bt.il_vsync = vsync;
+ fmt->bt.flags |= V4L2_DV_FL_HALF_LINE;
+ fmt->bt.interlaced = V4L2_DV_INTERLACED;
+ }
+
+ fmt->bt.pixelclock = pix_clk;
+ fmt->bt.standards = V4L2_DV_BT_STD_GTF;
+
+ if (!default_gtf)
+ fmt->bt.flags |= V4L2_DV_FL_REDUCED_BLANKING;
+
+ return true;
+}
+EXPORT_SYMBOL_GPL(v4l2_detect_gtf);
+
+/** v4l2_calc_aspect_ratio - calculate the aspect ratio based on bytes
+ * 0x15 and 0x16 from the EDID.
+ * @hor_landscape - byte 0x15 from the EDID.
+ * @vert_portrait - byte 0x16 from the EDID.
+ *
+ * Determines the aspect ratio from the EDID.
+ * See VESA Enhanced EDID standard, release A, rev 2, section 3.6.2:
+ * "Horizontal and Vertical Screen Size or Aspect Ratio"
+ */
+struct v4l2_fract v4l2_calc_aspect_ratio(u8 hor_landscape, u8 vert_portrait)
+{
+ struct v4l2_fract aspect = { 16, 9 };
+ u8 ratio;
+
+ /* Nothing filled in, fallback to 16:9 */
+ if (!hor_landscape && !vert_portrait)
+ return aspect;
+ /* Both filled in, so they are interpreted as the screen size in cm */
+ if (hor_landscape && vert_portrait) {
+ aspect.numerator = hor_landscape;
+ aspect.denominator = vert_portrait;
+ return aspect;
+ }
+ /* Only one is filled in, so interpret them as a ratio:
+ (val + 99) / 100 */
+ ratio = hor_landscape | vert_portrait;
+ /* Change some rounded values into the exact aspect ratio */
+ if (ratio == 79) {
+ aspect.numerator = 16;
+ aspect.denominator = 9;
+ } else if (ratio == 34) {
+ aspect.numerator = 4;
+ aspect.denominator = 3;
+ } else if (ratio == 68) {
+ aspect.numerator = 15;
+ aspect.denominator = 9;
+ } else {
+ aspect.numerator = hor_landscape + 99;
+ aspect.denominator = 100;
+ }
+ if (hor_landscape)
+ return aspect;
+ /* The aspect ratio is for portrait, so swap numerator and denominator */
+ swap(aspect.denominator, aspect.numerator);
+ return aspect;
+}
+EXPORT_SYMBOL_GPL(v4l2_calc_aspect_ratio);
return v4l2_event_unsubscribe(fh, sub);
}
EXPORT_SYMBOL_GPL(v4l2_event_subdev_unsubscribe);
+
+static void v4l2_event_src_replace(struct v4l2_event *old,
+ const struct v4l2_event *new)
+{
+ u32 old_changes = old->u.src_change.changes;
+
+ old->u.src_change = new->u.src_change;
+ old->u.src_change.changes |= old_changes;
+}
+
+static void v4l2_event_src_merge(const struct v4l2_event *old,
+ struct v4l2_event *new)
+{
+ new->u.src_change.changes |= old->u.src_change.changes;
+}
+
+static const struct v4l2_subscribed_event_ops v4l2_event_src_ch_ops = {
+ .replace = v4l2_event_src_replace,
+ .merge = v4l2_event_src_merge,
+};
+
+int v4l2_src_change_event_subscribe(struct v4l2_fh *fh,
+ const struct v4l2_event_subscription *sub)
+{
+ if (sub->type == V4L2_EVENT_SOURCE_CHANGE)
+ return v4l2_event_subscribe(fh, sub, 0, &v4l2_event_src_ch_ops);
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(v4l2_src_change_event_subscribe);
+
+int v4l2_src_change_event_subdev_subscribe(struct v4l2_subdev *sd,
+ struct v4l2_fh *fh, struct v4l2_event_subscription *sub)
+{
+ return v4l2_src_change_event_subscribe(fh, sub);
+}
+EXPORT_SYMBOL_GPL(v4l2_src_change_event_subdev_subscribe);
pix = &p->fmt.pix;
pr_cont(", width=%u, height=%u, "
"pixelformat=%c%c%c%c, field=%s, "
- "bytesperline=%u, sizeimage=%u, colorspace=%d\n",
+ "bytesperline=%u, sizeimage=%u, colorspace=%d "
+ "flags=0x%x, ycbcr_enc=%u, quantization=%u, "
+ "xfer_func=%u\n",
pix->width, pix->height,
(pix->pixelformat & 0xff),
(pix->pixelformat >> 8) & 0xff,
(pix->pixelformat >> 24) & 0xff,
prt_names(pix->field, v4l2_field_names),
pix->bytesperline, pix->sizeimage,
- pix->colorspace);
+ pix->colorspace, pix->flags, pix->ycbcr_enc,
+ pix->quantization, pix->xfer_func);
break;
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
mp = &p->fmt.pix_mp;
pr_cont(", width=%u, height=%u, "
"format=%c%c%c%c, field=%s, "
- "colorspace=%d, num_planes=%u\n",
+ "colorspace=%d, num_planes=%u, flags=0x%x, "
+ "ycbcr_enc=%u, quantization=%u, xfer_func=%u\n",
mp->width, mp->height,
(mp->pixelformat & 0xff),
(mp->pixelformat >> 8) & 0xff,
(mp->pixelformat >> 16) & 0xff,
(mp->pixelformat >> 24) & 0xff,
prt_names(mp->field, v4l2_field_names),
- mp->colorspace, mp->num_planes);
+ mp->colorspace, mp->num_planes, mp->flags,
+ mp->ycbcr_enc, mp->quantization, mp->xfer_func);
for (i = 0; i < mp->num_planes; i++)
printk(KERN_DEBUG "plane %u: bytesperline=%u sizeimage=%u\n", i,
mp->plane_fmt[i].bytesperline,
p->rangehigh, p->modulation);
}
+static void v4l_print_edid(const void *arg, bool write_only)
+{
+ const struct v4l2_edid *p = arg;
+
+ pr_cont("pad=%u, start_block=%u, blocks=%u\n",
+ p->pad, p->start_block, p->blocks);
+}
+
static void v4l_print_u32(const void *arg, bool write_only)
{
pr_cont("value=%u\n", *(const u32 *)arg);
return -EINVAL;
}
+static void v4l_sanitize_format(struct v4l2_format *fmt)
+{
+ unsigned int offset;
+
+ /*
+ * The v4l2_pix_format structure has been extended with fields that were
+ * not previously required to be set to zero by applications. The priv
+ * field, when set to a magic value, indicates the the extended fields
+ * are valid. Otherwise they will contain undefined values. To simplify
+ * the API towards drivers zero the extended fields and set the priv
+ * field to the magic value when the extended pixel format structure
+ * isn't used by applications.
+ */
+
+ if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+ fmt->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+ return;
+
+ if (fmt->fmt.pix.priv == V4L2_PIX_FMT_PRIV_MAGIC)
+ return;
+
+ fmt->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+
+ offset = offsetof(struct v4l2_pix_format, priv)
+ + sizeof(fmt->fmt.pix.priv);
+ memset(((void *)&fmt->fmt.pix) + offset, 0,
+ sizeof(fmt->fmt.pix) - offset);
+}
+
static int v4l_querycap(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_capability *cap = (struct v4l2_capability *)arg;
+ int ret;
cap->version = LINUX_VERSION_CODE;
- return ops->vidioc_querycap(file, fh, cap);
+
+ ret = ops->vidioc_querycap(file, fh, cap);
+
+ cap->capabilities |= V4L2_CAP_EXT_PIX_FORMAT;
+
+ return ret;
}
static int v4l_s_input(const struct v4l2_ioctl_ops *ops,
bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
+ int ret;
+
+ p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
switch (p->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap))
break;
- return ops->vidioc_g_fmt_vid_cap(file, fh, arg);
+ ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
+ p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+ return ret;
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap_mplane))
break;
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out))
break;
- return ops->vidioc_g_fmt_vid_out(file, fh, arg);
+ ret = ops->vidioc_g_fmt_vid_out(file, fh, arg);
+ p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+ return ret;
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_mplane))
break;
bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
+ v4l_sanitize_format(p);
+
switch (p->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap))
bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
+ v4l_sanitize_format(p);
+
switch (p->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap))
struct v4l2_create_buffers *create = arg;
int ret = check_fmt(file, create->format.type);
- return ret ? ret : ops->vidioc_create_bufs(file, fh, create);
+ if (ret)
+ return ret;
+
+ v4l_sanitize_format(&create->format);
+
+ ret = ops->vidioc_create_bufs(file, fh, create);
+
+ if (create->format.type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ create->format.type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
+ create->format.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+
+ return ret;
}
static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0),
IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO),
+ IOCTL_INFO_STD(VIDIOC_G_EDID, vidioc_g_edid, v4l_print_edid, INFO_FL_CLEAR(v4l2_edid, edid)),
+ IOCTL_INFO_STD(VIDIOC_S_EDID, vidioc_s_edid, v4l_print_edid, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_edid, edid)),
IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0),
IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)),
break;
}
- case _IOC_NR(VIDIOC_SUBDEV_G_EDID):
- case _IOC_NR(VIDIOC_SUBDEV_S_EDID): {
- struct v4l2_subdev_edid *edid = parg;
+ case _IOC_NR(VIDIOC_G_EDID):
+ case _IOC_NR(VIDIOC_S_EDID): {
+ struct v4l2_edid *edid = parg;
if (edid->blocks) {
if (edid->blocks > 256) {
sd, pad, set_selection, subdev_fh, sel);
}
- case _IOC_NR(VIDIOC_SUBDEV_G_EDID):
+ case _IOC_NR(VIDIOC_G_EDID):
return v4l2_subdev_call(sd, pad, get_edid, arg);
- case _IOC_NR(VIDIOC_SUBDEV_S_EDID):
+ case _IOC_NR(VIDIOC_S_EDID):
return v4l2_subdev_call(sd, pad, set_edid, arg);
#endif
default:
#endif
}
EXPORT_SYMBOL(v4l2_subdev_init);
+
+/**
+ * v4l2_subdev_notify_event() - Delivers event notification for subdevice
+ * @sd: The subdev for which to deliver the event
+ * @ev: The event to deliver
+ *
+ * Will deliver the specified event to all userspace event listeners which are
+ * subscribed to the v42l subdev event queue as well as to the bridge driver
+ * using the notify callback. The notification type for the notify callback
+ * will be V4L2_DEVICE_NOTIFY_EVENT.
+ */
+void v4l2_subdev_notify_event(struct v4l2_subdev *sd,
+ const struct v4l2_event *ev)
+{
+ v4l2_event_queue(sd->devnode, ev);
+ v4l2_subdev_notify(sd, V4L2_DEVICE_NOTIFY_EVENT, (void *)ev);
+}
+EXPORT_SYMBOL_GPL(v4l2_subdev_notify_event);
struct vb2_queue *q = vb->vb2_queue;
int ret;
+ if (q->error) {
+ dprintk(1, "fatal error occurred on queue\n");
+ return -EIO;
+ }
+
switch (q->memory) {
case V4L2_MEMORY_MMAP:
ret = __qbuf_mmap(vb, b);
return -EINVAL;
}
+ if (q->error) {
+ dprintk(1, "Queue in error state, will not wait for buffers\n");
+ return -EIO;
+ }
+
if (!list_empty(&q->done_list)) {
/*
* Found a buffer that we were waiting for.
*/
dprintk(3, "Will sleep waiting for buffers\n");
ret = wait_event_interruptible(q->done_wq,
- !list_empty(&q->done_list) || !q->streaming);
+ !list_empty(&q->done_list) || !q->streaming ||
+ q->error);
/*
* We need to reevaluate both conditions again after reacquiring
if (q->streaming)
call_qop(q, stop_streaming, q);
q->streaming = 0;
+ q->error = 0;
/*
* Remove all buffers from videobuf's list...
__vb2_dqbuf(q->bufs[i]);
}
+/**
+ * vb2_queue_error() - signal a fatal error on the queue
+ * @q: videobuf2 queue
+ *
+ * Flag that a fatal unrecoverable error has occurred and wake up all processes
+ * waiting on the queue. Polling will now set POLLERR and queuing and dequeuing
+ * buffers will return -EIO.
+ *
+ * The error flag will be cleared when cancelling the queue, either from
+ * vb2_streamoff or vb2_queue_release. Drivers should thus not call this
+ * function before starting the stream, otherwise the error flag will remain set
+ * until the queue is released when closing the device node.
+ */
+void vb2_queue_error(struct vb2_queue *q)
+{
+ q->error = 1;
+
+ wake_up_all(&q->done_wq);
+}
+EXPORT_SYMBOL_GPL(vb2_queue_error);
+
/**
* vb2_streamon - start streaming
* @q: videobuf2 queue
}
/*
- * There is nothing to wait for if the queue isn't streaming.
+ * There is nothing to wait for if no buffer has been queued and the
+ * queue isn't streaming, or if the error flag is set.
*/
- if (!vb2_is_streaming(q))
+ if ((list_empty(&q->queued_list) && !vb2_is_streaming(q)) || q->error)
return res | POLLERR;
/*
* For compatibility with vb1: if QBUF hasn't been called yet, then
}
EXPORT_SYMBOL_GPL(vb2_read);
-size_t vb2_write(struct vb2_queue *q, char __user *data, size_t count,
+size_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count,
loff_t *ppos, int nonblocking)
{
- return __vb2_perform_fileio(q, data, count, ppos, nonblocking, 0);
+ return __vb2_perform_fileio(q, (char __user *) data, count,
+ ppos, nonblocking, 0);
}
EXPORT_SYMBOL_GPL(vb2_write);
}
EXPORT_SYMBOL_GPL(vb2_fop_release);
-ssize_t vb2_fop_write(struct file *file, char __user *buf,
+ssize_t vb2_fop_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
struct video_device *vdev = video_devdata(file);
*/
#include <linux/bitops.h>
+#include <linux/bug.h>
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/hdmi.h>
#include <linux/string.h>
+#include <linux/device.h>
-static void hdmi_infoframe_checksum(void *buffer, size_t size)
+#define hdmi_log(fmt, ...) dev_printk(level, dev, fmt, ##__VA_ARGS__)
+
+static u8 hdmi_infoframe_checksum(u8 *ptr, size_t size)
{
- u8 *ptr = buffer;
u8 csum = 0;
size_t i;
for (i = 0; i < size; i++)
csum += ptr[i];
- ptr[3] = 256 - csum;
+ return 256 - csum;
+}
+
+static void hdmi_infoframe_set_checksum(void *buffer, size_t size)
+{
+ u8 *ptr = buffer;
+
+ ptr[3] = hdmi_infoframe_checksum(buffer, size);
}
/**
if (size < length)
return -ENOSPC;
- memset(buffer, 0, length);
+ memset(buffer, 0, size);
ptr[0] = frame->type;
ptr[1] = frame->version;
ptr[0] = ((frame->colorspace & 0x3) << 5) | (frame->scan_mode & 0x3);
- if (frame->active_info_valid)
+ /*
+ * Data byte 1, bit 4 has to be set if we provide the active format
+ * aspect ratio
+ */
+ if (frame->active_aspect & 0xf)
ptr[0] |= BIT(4);
- if (frame->horizontal_bar_valid)
+ /* Bit 3 and 2 indicate if we transmit horizontal/vertical bar data */
+ if (frame->top_bar || frame->bottom_bar)
ptr[0] |= BIT(3);
- if (frame->vertical_bar_valid)
+ if (frame->left_bar || frame->right_bar)
ptr[0] |= BIT(2);
ptr[1] = ((frame->colorimetry & 0x3) << 6) |
ptr[11] = frame->right_bar & 0xff;
ptr[12] = (frame->right_bar >> 8) & 0xff;
- hdmi_infoframe_checksum(buffer, length);
+ hdmi_infoframe_set_checksum(buffer, length);
return length;
}
if (size < length)
return -ENOSPC;
- memset(buffer, 0, length);
+ memset(buffer, 0, size);
ptr[0] = frame->type;
ptr[1] = frame->version;
ptr[24] = frame->sdi;
- hdmi_infoframe_checksum(buffer, length);
+ hdmi_infoframe_set_checksum(buffer, length);
return length;
}
if (size < length)
return -ENOSPC;
- memset(buffer, 0, length);
+ memset(buffer, 0, size);
if (frame->channels >= 2)
channels = frame->channels - 1;
if (frame->downmix_inhibit)
ptr[4] |= BIT(7);
- hdmi_infoframe_checksum(buffer, length);
+ hdmi_infoframe_set_checksum(buffer, length);
return length;
}
EXPORT_SYMBOL(hdmi_audio_infoframe_pack);
/**
- * hdmi_vendor_infoframe_pack() - write a HDMI vendor infoframe to binary
- * buffer
+ * hdmi_vendor_infoframe_init() - initialize an HDMI vendor infoframe
* @frame: HDMI vendor infoframe
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame)
+{
+ memset(frame, 0, sizeof(*frame));
+
+ frame->type = HDMI_INFOFRAME_TYPE_VENDOR;
+ frame->version = 1;
+
+ frame->oui = HDMI_IEEE_OUI;
+
+ /*
+ * 0 is a valid value for s3d_struct, so we use a special "not set"
+ * value
+ */
+ frame->s3d_struct = HDMI_3D_STRUCTURE_INVALID;
+
+ return 0;
+}
+EXPORT_SYMBOL(hdmi_vendor_infoframe_init);
+
+/**
+ * hdmi_vendor_infoframe_pack() - write a HDMI vendor infoframe to binary buffer
+ * @frame: HDMI infoframe
* @buffer: destination buffer
* @size: size of buffer
*
* error code on failure.
*/
ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
- void *buffer, size_t size)
+ void *buffer, size_t size)
{
u8 *ptr = buffer;
size_t length;
+ /* empty info frame */
+ if (frame->vic == 0 && frame->s3d_struct == HDMI_3D_STRUCTURE_INVALID)
+ return -EINVAL;
+
+ /* only one of those can be supplied */
+ if (frame->vic != 0 && frame->s3d_struct != HDMI_3D_STRUCTURE_INVALID)
+ return -EINVAL;
+
+ /* for side by side (half) we also need to provide 3D_Ext_Data */
+ if (frame->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF)
+ frame->length = 6;
+ else
+ frame->length = 5;
+
length = HDMI_INFOFRAME_HEADER_SIZE + frame->length;
if (size < length)
return -ENOSPC;
- memset(buffer, 0, length);
+ memset(buffer, 0, size);
ptr[0] = frame->type;
ptr[1] = frame->version;
ptr[2] = frame->length;
ptr[3] = 0; /* checksum */
- memcpy(&ptr[HDMI_INFOFRAME_HEADER_SIZE], frame->data, frame->length);
+ /* HDMI OUI */
+ ptr[4] = 0x03;
+ ptr[5] = 0x0c;
+ ptr[6] = 0x00;
- hdmi_infoframe_checksum(buffer, length);
+ if (frame->vic) {
+ ptr[7] = 0x1 << 5; /* video format */
+ ptr[8] = frame->vic;
+ } else {
+ ptr[7] = 0x2 << 5; /* video format */
+ ptr[8] = (frame->s3d_struct & 0xf) << 4;
+ if (frame->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF)
+ ptr[9] = (frame->s3d_ext_data & 0xf) << 4;
+ }
+
+ hdmi_infoframe_set_checksum(buffer, length);
return length;
}
EXPORT_SYMBOL(hdmi_vendor_infoframe_pack);
+
+/*
+ * hdmi_vendor_any_infoframe_pack() - write a vendor infoframe to binary buffer
+ */
+static ssize_t
+hdmi_vendor_any_infoframe_pack(union hdmi_vendor_any_infoframe *frame,
+ void *buffer, size_t size)
+{
+ /* we only know about HDMI vendor infoframes */
+ if (frame->any.oui != HDMI_IEEE_OUI)
+ return -EINVAL;
+
+ return hdmi_vendor_infoframe_pack(&frame->hdmi, buffer, size);
+}
+
+/**
+ * hdmi_infoframe_pack() - write a HDMI infoframe to binary buffer
+ * @frame: HDMI infoframe
+ * @buffer: destination buffer
+ * @size: size of buffer
+ *
+ * Packs the information contained in the @frame structure into a binary
+ * representation that can be written into the corresponding controller
+ * registers. Also computes the checksum as required by section 5.3.5 of
+ * the HDMI 1.4 specification.
+ *
+ * Returns the number of bytes packed into the binary buffer or a negative
+ * error code on failure.
+ */
+ssize_t
+hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer, size_t size)
+{
+ ssize_t length;
+
+ switch (frame->any.type) {
+ case HDMI_INFOFRAME_TYPE_AVI:
+ length = hdmi_avi_infoframe_pack(&frame->avi, buffer, size);
+ break;
+ case HDMI_INFOFRAME_TYPE_SPD:
+ length = hdmi_spd_infoframe_pack(&frame->spd, buffer, size);
+ break;
+ case HDMI_INFOFRAME_TYPE_AUDIO:
+ length = hdmi_audio_infoframe_pack(&frame->audio, buffer, size);
+ break;
+ case HDMI_INFOFRAME_TYPE_VENDOR:
+ length = hdmi_vendor_any_infoframe_pack(&frame->vendor,
+ buffer, size);
+ break;
+ default:
+ WARN(1, "Bad infoframe type %d\n", frame->any.type);
+ length = -EINVAL;
+ }
+
+ return length;
+}
+EXPORT_SYMBOL(hdmi_infoframe_pack);
+
+static const char *hdmi_infoframe_type_get_name(enum hdmi_infoframe_type type)
+{
+ if (type < 0x80 || type > 0x9f)
+ return "Invalid";
+ switch (type) {
+ case HDMI_INFOFRAME_TYPE_VENDOR:
+ return "Vendor";
+ case HDMI_INFOFRAME_TYPE_AVI:
+ return "Auxiliary Video Information (AVI)";
+ case HDMI_INFOFRAME_TYPE_SPD:
+ return "Source Product Description (SPD)";
+ case HDMI_INFOFRAME_TYPE_AUDIO:
+ return "Audio";
+ }
+ return "Reserved";
+}
+
+static void hdmi_infoframe_log_header(const char *level,
+ struct device *dev,
+ struct hdmi_any_infoframe *frame)
+{
+ hdmi_log("HDMI infoframe: %s, version %u, length %u\n",
+ hdmi_infoframe_type_get_name(frame->type),
+ frame->version, frame->length);
+}
+
+static const char *hdmi_colorspace_get_name(enum hdmi_colorspace colorspace)
+{
+ switch (colorspace) {
+ case HDMI_COLORSPACE_RGB:
+ return "RGB";
+ case HDMI_COLORSPACE_YUV422:
+ return "YCbCr 4:2:2";
+ case HDMI_COLORSPACE_YUV444:
+ return "YCbCr 4:4:4";
+ case HDMI_COLORSPACE_YUV420:
+ return "YCbCr 4:2:0";
+ case HDMI_COLORSPACE_RESERVED4:
+ return "Reserved (4)";
+ case HDMI_COLORSPACE_RESERVED5:
+ return "Reserved (5)";
+ case HDMI_COLORSPACE_RESERVED6:
+ return "Reserved (6)";
+ case HDMI_COLORSPACE_IDO_DEFINED:
+ return "IDO Defined";
+ }
+ return "Invalid";
+}
+
+static const char *hdmi_scan_mode_get_name(enum hdmi_scan_mode scan_mode)
+{
+ switch (scan_mode) {
+ case HDMI_SCAN_MODE_NONE:
+ return "No Data";
+ case HDMI_SCAN_MODE_OVERSCAN:
+ return "Overscan";
+ case HDMI_SCAN_MODE_UNDERSCAN:
+ return "Underscan";
+ case HDMI_SCAN_MODE_RESERVED:
+ return "Reserved";
+ }
+ return "Invalid";
+}
+
+static const char *hdmi_colorimetry_get_name(enum hdmi_colorimetry colorimetry)
+{
+ switch (colorimetry) {
+ case HDMI_COLORIMETRY_NONE:
+ return "No Data";
+ case HDMI_COLORIMETRY_ITU_601:
+ return "ITU601";
+ case HDMI_COLORIMETRY_ITU_709:
+ return "ITU709";
+ case HDMI_COLORIMETRY_EXTENDED:
+ return "Extended";
+ }
+ return "Invalid";
+}
+
+static const char *
+hdmi_picture_aspect_get_name(enum hdmi_picture_aspect picture_aspect)
+{
+ switch (picture_aspect) {
+ case HDMI_PICTURE_ASPECT_NONE:
+ return "No Data";
+ case HDMI_PICTURE_ASPECT_4_3:
+ return "4:3";
+ case HDMI_PICTURE_ASPECT_16_9:
+ return "16:9";
+ case HDMI_PICTURE_ASPECT_RESERVED:
+ return "Reserved";
+ }
+ return "Invalid";
+}
+
+static const char *
+hdmi_active_aspect_get_name(enum hdmi_active_aspect active_aspect)
+{
+ if (active_aspect < 0 || active_aspect > 0xf)
+ return "Invalid";
+
+ switch (active_aspect) {
+ case HDMI_ACTIVE_ASPECT_16_9_TOP:
+ return "16:9 Top";
+ case HDMI_ACTIVE_ASPECT_14_9_TOP:
+ return "14:9 Top";
+ case HDMI_ACTIVE_ASPECT_16_9_CENTER:
+ return "16:9 Center";
+ case HDMI_ACTIVE_ASPECT_PICTURE:
+ return "Same as Picture";
+ case HDMI_ACTIVE_ASPECT_4_3:
+ return "4:3";
+ case HDMI_ACTIVE_ASPECT_16_9:
+ return "16:9";
+ case HDMI_ACTIVE_ASPECT_14_9:
+ return "14:9";
+ case HDMI_ACTIVE_ASPECT_4_3_SP_14_9:
+ return "4:3 SP 14:9";
+ case HDMI_ACTIVE_ASPECT_16_9_SP_14_9:
+ return "16:9 SP 14:9";
+ case HDMI_ACTIVE_ASPECT_16_9_SP_4_3:
+ return "16:9 SP 4:3";
+ }
+ return "Reserved";
+}
+
+static const char *
+hdmi_extended_colorimetry_get_name(enum hdmi_extended_colorimetry ext_col)
+{
+ switch (ext_col) {
+ case HDMI_EXTENDED_COLORIMETRY_XV_YCC_601:
+ return "xvYCC 601";
+ case HDMI_EXTENDED_COLORIMETRY_XV_YCC_709:
+ return "xvYCC 709";
+ case HDMI_EXTENDED_COLORIMETRY_S_YCC_601:
+ return "sYCC 601";
+ case HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601:
+ return "Adobe YCC 601";
+ case HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB:
+ return "Adobe RGB";
+ case HDMI_EXTENDED_COLORIMETRY_BT2020_CONST_LUM:
+ return "BT.2020 Constant Luminance";
+ case HDMI_EXTENDED_COLORIMETRY_BT2020:
+ return "BT.2020";
+ case HDMI_EXTENDED_COLORIMETRY_RESERVED:
+ return "Reserved";
+ }
+ return "Invalid";
+}
+
+static const char *
+hdmi_quantization_range_get_name(enum hdmi_quantization_range qrange)
+{
+ switch (qrange) {
+ case HDMI_QUANTIZATION_RANGE_DEFAULT:
+ return "Default";
+ case HDMI_QUANTIZATION_RANGE_LIMITED:
+ return "Limited";
+ case HDMI_QUANTIZATION_RANGE_FULL:
+ return "Full";
+ case HDMI_QUANTIZATION_RANGE_RESERVED:
+ return "Reserved";
+ }
+ return "Invalid";
+}
+
+static const char *hdmi_nups_get_name(enum hdmi_nups nups)
+{
+ switch (nups) {
+ case HDMI_NUPS_UNKNOWN:
+ return "Unknown Non-uniform Scaling";
+ case HDMI_NUPS_HORIZONTAL:
+ return "Horizontally Scaled";
+ case HDMI_NUPS_VERTICAL:
+ return "Vertically Scaled";
+ case HDMI_NUPS_BOTH:
+ return "Horizontally and Vertically Scaled";
+ }
+ return "Invalid";
+}
+
+static const char *
+hdmi_ycc_quantization_range_get_name(enum hdmi_ycc_quantization_range qrange)
+{
+ switch (qrange) {
+ case HDMI_YCC_QUANTIZATION_RANGE_LIMITED:
+ return "Limited";
+ case HDMI_YCC_QUANTIZATION_RANGE_FULL:
+ return "Full";
+ }
+ return "Invalid";
+}
+
+static const char *
+hdmi_content_type_get_name(enum hdmi_content_type content_type)
+{
+ switch (content_type) {
+ case HDMI_CONTENT_TYPE_GRAPHICS:
+ return "Graphics";
+ case HDMI_CONTENT_TYPE_PHOTO:
+ return "Photo";
+ case HDMI_CONTENT_TYPE_CINEMA:
+ return "Cinema";
+ case HDMI_CONTENT_TYPE_GAME:
+ return "Game";
+ }
+ return "Invalid";
+}
+
+/**
+ * hdmi_avi_infoframe_log() - log info of HDMI AVI infoframe
+ * @level: logging level
+ * @dev: device
+ * @frame: HDMI AVI infoframe
+ */
+static void hdmi_avi_infoframe_log(const char *level,
+ struct device *dev,
+ struct hdmi_avi_infoframe *frame)
+{
+ hdmi_infoframe_log_header(level, dev,
+ (struct hdmi_any_infoframe *)frame);
+
+ hdmi_log(" colorspace: %s\n",
+ hdmi_colorspace_get_name(frame->colorspace));
+ hdmi_log(" scan mode: %s\n",
+ hdmi_scan_mode_get_name(frame->scan_mode));
+ hdmi_log(" colorimetry: %s\n",
+ hdmi_colorimetry_get_name(frame->colorimetry));
+ hdmi_log(" picture aspect: %s\n",
+ hdmi_picture_aspect_get_name(frame->picture_aspect));
+ hdmi_log(" active aspect: %s\n",
+ hdmi_active_aspect_get_name(frame->active_aspect));
+ hdmi_log(" itc: %s\n", frame->itc ? "IT Content" : "No Data");
+ hdmi_log(" extended colorimetry: %s\n",
+ hdmi_extended_colorimetry_get_name(frame->extended_colorimetry));
+ hdmi_log(" quantization range: %s\n",
+ hdmi_quantization_range_get_name(frame->quantization_range));
+ hdmi_log(" nups: %s\n", hdmi_nups_get_name(frame->nups));
+ hdmi_log(" video code: %u\n", frame->video_code);
+ hdmi_log(" ycc quantization range: %s\n",
+ hdmi_ycc_quantization_range_get_name(frame->ycc_quantization_range));
+ hdmi_log(" hdmi content type: %s\n",
+ hdmi_content_type_get_name(frame->content_type));
+ hdmi_log(" pixel repeat: %u\n", frame->pixel_repeat);
+ hdmi_log(" bar top %u, bottom %u, left %u, right %u\n",
+ frame->top_bar, frame->bottom_bar,
+ frame->left_bar, frame->right_bar);
+}
+
+static const char *hdmi_spd_sdi_get_name(enum hdmi_spd_sdi sdi)
+{
+ if (sdi < 0 || sdi > 0xff)
+ return "Invalid";
+ switch (sdi) {
+ case HDMI_SPD_SDI_UNKNOWN:
+ return "Unknown";
+ case HDMI_SPD_SDI_DSTB:
+ return "Digital STB";
+ case HDMI_SPD_SDI_DVDP:
+ return "DVD Player";
+ case HDMI_SPD_SDI_DVHS:
+ return "D-VHS";
+ case HDMI_SPD_SDI_HDDVR:
+ return "HDD Videorecorder";
+ case HDMI_SPD_SDI_DVC:
+ return "DVC";
+ case HDMI_SPD_SDI_DSC:
+ return "DSC";
+ case HDMI_SPD_SDI_VCD:
+ return "Video CD";
+ case HDMI_SPD_SDI_GAME:
+ return "Game";
+ case HDMI_SPD_SDI_PC:
+ return "PC General";
+ case HDMI_SPD_SDI_BD:
+ return "Blu-Ray Disc (BD)";
+ case HDMI_SPD_SDI_SACD:
+ return "Super Audio CD";
+ case HDMI_SPD_SDI_HDDVD:
+ return "HD DVD";
+ case HDMI_SPD_SDI_PMP:
+ return "PMP";
+ }
+ return "Reserved";
+}
+
+/**
+ * hdmi_spd_infoframe_log() - log info of HDMI SPD infoframe
+ * @level: logging level
+ * @dev: device
+ * @frame: HDMI SPD infoframe
+ */
+static void hdmi_spd_infoframe_log(const char *level,
+ struct device *dev,
+ struct hdmi_spd_infoframe *frame)
+{
+ u8 buf[17];
+
+ hdmi_infoframe_log_header(level, dev,
+ (struct hdmi_any_infoframe *)frame);
+
+ memset(buf, 0, sizeof(buf));
+
+ strncpy(buf, frame->vendor, 8);
+ hdmi_log(" vendor: %s\n", buf);
+ strncpy(buf, frame->product, 16);
+ hdmi_log(" product: %s\n", buf);
+ hdmi_log(" source device information: %s (0x%x)\n",
+ hdmi_spd_sdi_get_name(frame->sdi), frame->sdi);
+}
+
+static const char *
+hdmi_audio_coding_type_get_name(enum hdmi_audio_coding_type coding_type)
+{
+ switch (coding_type) {
+ case HDMI_AUDIO_CODING_TYPE_STREAM:
+ return "Refer to Stream Header";
+ case HDMI_AUDIO_CODING_TYPE_PCM:
+ return "PCM";
+ case HDMI_AUDIO_CODING_TYPE_AC3:
+ return "AC-3";
+ case HDMI_AUDIO_CODING_TYPE_MPEG1:
+ return "MPEG1";
+ case HDMI_AUDIO_CODING_TYPE_MP3:
+ return "MP3";
+ case HDMI_AUDIO_CODING_TYPE_MPEG2:
+ return "MPEG2";
+ case HDMI_AUDIO_CODING_TYPE_AAC_LC:
+ return "AAC";
+ case HDMI_AUDIO_CODING_TYPE_DTS:
+ return "DTS";
+ case HDMI_AUDIO_CODING_TYPE_ATRAC:
+ return "ATRAC";
+ case HDMI_AUDIO_CODING_TYPE_DSD:
+ return "One Bit Audio";
+ case HDMI_AUDIO_CODING_TYPE_EAC3:
+ return "Dolby Digital +";
+ case HDMI_AUDIO_CODING_TYPE_DTS_HD:
+ return "DTS-HD";
+ case HDMI_AUDIO_CODING_TYPE_MLP:
+ return "MAT (MLP)";
+ case HDMI_AUDIO_CODING_TYPE_DST:
+ return "DST";
+ case HDMI_AUDIO_CODING_TYPE_WMA_PRO:
+ return "WMA PRO";
+ case HDMI_AUDIO_CODING_TYPE_CXT:
+ return "Refer to CXT";
+ }
+ return "Invalid";
+}
+
+static const char *
+hdmi_audio_sample_size_get_name(enum hdmi_audio_sample_size sample_size)
+{
+ switch (sample_size) {
+ case HDMI_AUDIO_SAMPLE_SIZE_STREAM:
+ return "Refer to Stream Header";
+ case HDMI_AUDIO_SAMPLE_SIZE_16:
+ return "16 bit";
+ case HDMI_AUDIO_SAMPLE_SIZE_20:
+ return "20 bit";
+ case HDMI_AUDIO_SAMPLE_SIZE_24:
+ return "24 bit";
+ }
+ return "Invalid";
+}
+
+static const char *
+hdmi_audio_sample_frequency_get_name(enum hdmi_audio_sample_frequency freq)
+{
+ switch (freq) {
+ case HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM:
+ return "Refer to Stream Header";
+ case HDMI_AUDIO_SAMPLE_FREQUENCY_32000:
+ return "32 kHz";
+ case HDMI_AUDIO_SAMPLE_FREQUENCY_44100:
+ return "44.1 kHz (CD)";
+ case HDMI_AUDIO_SAMPLE_FREQUENCY_48000:
+ return "48 kHz";
+ case HDMI_AUDIO_SAMPLE_FREQUENCY_88200:
+ return "88.2 kHz";
+ case HDMI_AUDIO_SAMPLE_FREQUENCY_96000:
+ return "96 kHz";
+ case HDMI_AUDIO_SAMPLE_FREQUENCY_176400:
+ return "176.4 kHz";
+ case HDMI_AUDIO_SAMPLE_FREQUENCY_192000:
+ return "192 kHz";
+ }
+ return "Invalid";
+}
+
+static const char *
+hdmi_audio_coding_type_ext_get_name(enum hdmi_audio_coding_type_ext ctx)
+{
+ if (ctx < 0 || ctx > 0x1f)
+ return "Invalid";
+
+ switch (ctx) {
+ case HDMI_AUDIO_CODING_TYPE_EXT_CT:
+ return "Refer to CT";
+ case HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC:
+ return "HE AAC";
+ case HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2:
+ return "HE AAC v2";
+ case HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND:
+ return "MPEG SURROUND";
+ case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC:
+ return "MPEG-4 HE AAC";
+ case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_V2:
+ return "MPEG-4 HE AAC v2";
+ case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC:
+ return "MPEG-4 AAC LC";
+ case HDMI_AUDIO_CODING_TYPE_EXT_DRA:
+ return "DRA";
+ case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_SURROUND:
+ return "MPEG-4 HE AAC + MPEG Surround";
+ case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC_SURROUND:
+ return "MPEG-4 AAC LC + MPEG Surround";
+ }
+ return "Reserved";
+}
+
+/**
+ * hdmi_audio_infoframe_log() - log info of HDMI AUDIO infoframe
+ * @level: logging level
+ * @dev: device
+ * @frame: HDMI AUDIO infoframe
+ */
+static void hdmi_audio_infoframe_log(const char *level,
+ struct device *dev,
+ struct hdmi_audio_infoframe *frame)
+{
+ hdmi_infoframe_log_header(level, dev,
+ (struct hdmi_any_infoframe *)frame);
+
+ if (frame->channels)
+ hdmi_log(" channels: %u\n", frame->channels - 1);
+ else
+ hdmi_log(" channels: Refer to stream header\n");
+ hdmi_log(" coding type: %s\n",
+ hdmi_audio_coding_type_get_name(frame->coding_type));
+ hdmi_log(" sample size: %s\n",
+ hdmi_audio_sample_size_get_name(frame->sample_size));
+ hdmi_log(" sample frequency: %s\n",
+ hdmi_audio_sample_frequency_get_name(frame->sample_frequency));
+ hdmi_log(" coding type ext: %s\n",
+ hdmi_audio_coding_type_ext_get_name(frame->coding_type_ext));
+ hdmi_log(" channel allocation: 0x%x\n",
+ frame->channel_allocation);
+ hdmi_log(" level shift value: %u dB\n",
+ frame->level_shift_value);
+ hdmi_log(" downmix inhibit: %s\n",
+ frame->downmix_inhibit ? "Yes" : "No");
+}
+
+static const char *
+hdmi_3d_structure_get_name(enum hdmi_3d_structure s3d_struct)
+{
+ if (s3d_struct < 0 || s3d_struct > 0xf)
+ return "Invalid";
+
+ switch (s3d_struct) {
+ case HDMI_3D_STRUCTURE_FRAME_PACKING:
+ return "Frame Packing";
+ case HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE:
+ return "Field Alternative";
+ case HDMI_3D_STRUCTURE_LINE_ALTERNATIVE:
+ return "Line Alternative";
+ case HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL:
+ return "Side-by-side (Full)";
+ case HDMI_3D_STRUCTURE_L_DEPTH:
+ return "L + Depth";
+ case HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH:
+ return "L + Depth + Graphics + Graphics-depth";
+ case HDMI_3D_STRUCTURE_TOP_AND_BOTTOM:
+ return "Top-and-Bottom";
+ case HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF:
+ return "Side-by-side (Half)";
+ default:
+ break;
+ }
+ return "Reserved";
+}
+
+/**
+ * hdmi_vendor_infoframe_log() - log info of HDMI VENDOR infoframe
+ * @level: logging level
+ * @dev: device
+ * @frame: HDMI VENDOR infoframe
+ */
+static void
+hdmi_vendor_any_infoframe_log(const char *level,
+ struct device *dev,
+ union hdmi_vendor_any_infoframe *frame)
+{
+ struct hdmi_vendor_infoframe *hvf = &frame->hdmi;
+
+ hdmi_infoframe_log_header(level, dev,
+ (struct hdmi_any_infoframe *)frame);
+
+ if (frame->any.oui != HDMI_IEEE_OUI) {
+ hdmi_log(" not a HDMI vendor infoframe\n");
+ return;
+ }
+ if (hvf->vic == 0 && hvf->s3d_struct == HDMI_3D_STRUCTURE_INVALID) {
+ hdmi_log(" empty frame\n");
+ return;
+ }
+
+ if (hvf->vic)
+ hdmi_log(" HDMI VIC: %u\n", hvf->vic);
+ if (hvf->s3d_struct != HDMI_3D_STRUCTURE_INVALID) {
+ hdmi_log(" 3D structure: %s\n",
+ hdmi_3d_structure_get_name(hvf->s3d_struct));
+ if (hvf->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF)
+ hdmi_log(" 3D extension data: %d\n",
+ hvf->s3d_ext_data);
+ }
+}
+
+/**
+ * hdmi_infoframe_log() - log info of HDMI infoframe
+ * @level: logging level
+ * @dev: device
+ * @frame: HDMI infoframe
+ */
+void hdmi_infoframe_log(const char *level,
+ struct device *dev,
+ union hdmi_infoframe *frame)
+{
+ switch (frame->any.type) {
+ case HDMI_INFOFRAME_TYPE_AVI:
+ hdmi_avi_infoframe_log(level, dev, &frame->avi);
+ break;
+ case HDMI_INFOFRAME_TYPE_SPD:
+ hdmi_spd_infoframe_log(level, dev, &frame->spd);
+ break;
+ case HDMI_INFOFRAME_TYPE_AUDIO:
+ hdmi_audio_infoframe_log(level, dev, &frame->audio);
+ break;
+ case HDMI_INFOFRAME_TYPE_VENDOR:
+ hdmi_vendor_any_infoframe_log(level, dev, &frame->vendor);
+ break;
+ }
+}
+EXPORT_SYMBOL(hdmi_infoframe_log);
+
+/**
+ * hdmi_avi_infoframe_unpack() - unpack binary buffer to a HDMI AVI infoframe
+ * @buffer: source buffer
+ * @frame: HDMI AVI infoframe
+ *
+ * Unpacks the information contained in binary @buffer into a structured
+ * @frame of the HDMI Auxiliary Video (AVI) information frame.
+ * Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
+ * specification.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+static int hdmi_avi_infoframe_unpack(struct hdmi_avi_infoframe *frame,
+ void *buffer)
+{
+ u8 *ptr = buffer;
+ int ret;
+
+ if (ptr[0] != HDMI_INFOFRAME_TYPE_AVI ||
+ ptr[1] != 2 ||
+ ptr[2] != HDMI_AVI_INFOFRAME_SIZE)
+ return -EINVAL;
+
+ if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(AVI)) != 0)
+ return -EINVAL;
+
+ ret = hdmi_avi_infoframe_init(frame);
+ if (ret)
+ return ret;
+
+ ptr += HDMI_INFOFRAME_HEADER_SIZE;
+
+ frame->colorspace = (ptr[0] >> 5) & 0x3;
+ if (ptr[0] & 0x10)
+ frame->active_aspect = ptr[1] & 0xf;
+ if (ptr[0] & 0x8) {
+ frame->top_bar = (ptr[5] << 8) + ptr[6];
+ frame->bottom_bar = (ptr[7] << 8) + ptr[8];
+ }
+ if (ptr[0] & 0x4) {
+ frame->left_bar = (ptr[9] << 8) + ptr[10];
+ frame->right_bar = (ptr[11] << 8) + ptr[12];
+ }
+ frame->scan_mode = ptr[0] & 0x3;
+
+ frame->colorimetry = (ptr[1] >> 6) & 0x3;
+ frame->picture_aspect = (ptr[1] >> 4) & 0x3;
+ frame->active_aspect = ptr[1] & 0xf;
+
+ frame->itc = ptr[2] & 0x80 ? true : false;
+ frame->extended_colorimetry = (ptr[2] >> 4) & 0x7;
+ frame->quantization_range = (ptr[2] >> 2) & 0x3;
+ frame->nups = ptr[2] & 0x3;
+
+ frame->video_code = ptr[3] & 0x7f;
+ frame->ycc_quantization_range = (ptr[4] >> 6) & 0x3;
+ frame->content_type = (ptr[4] >> 4) & 0x3;
+
+ frame->pixel_repeat = ptr[4] & 0xf;
+
+ return 0;
+}
+
+/**
+ * hdmi_spd_infoframe_unpack() - unpack binary buffer to a HDMI SPD infoframe
+ * @buffer: source buffer
+ * @frame: HDMI SPD infoframe
+ *
+ * Unpacks the information contained in binary @buffer into a structured
+ * @frame of the HDMI Source Product Description (SPD) information frame.
+ * Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
+ * specification.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+static int hdmi_spd_infoframe_unpack(struct hdmi_spd_infoframe *frame,
+ void *buffer)
+{
+ u8 *ptr = buffer;
+ int ret;
+
+ if (ptr[0] != HDMI_INFOFRAME_TYPE_SPD ||
+ ptr[1] != 1 ||
+ ptr[2] != HDMI_SPD_INFOFRAME_SIZE) {
+ return -EINVAL;
+ }
+
+ if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(SPD)) != 0)
+ return -EINVAL;
+
+ ptr += HDMI_INFOFRAME_HEADER_SIZE;
+
+ ret = hdmi_spd_infoframe_init(frame, ptr, ptr + 8);
+ if (ret)
+ return ret;
+
+ frame->sdi = ptr[24];
+
+ return 0;
+}
+
+/**
+ * hdmi_audio_infoframe_unpack() - unpack binary buffer to a HDMI AUDIO infoframe
+ * @buffer: source buffer
+ * @frame: HDMI Audio infoframe
+ *
+ * Unpacks the information contained in binary @buffer into a structured
+ * @frame of the HDMI Audio information frame.
+ * Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
+ * specification.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+static int hdmi_audio_infoframe_unpack(struct hdmi_audio_infoframe *frame,
+ void *buffer)
+{
+ u8 *ptr = buffer;
+ int ret;
+
+ if (ptr[0] != HDMI_INFOFRAME_TYPE_AUDIO ||
+ ptr[1] != 1 ||
+ ptr[2] != HDMI_AUDIO_INFOFRAME_SIZE) {
+ return -EINVAL;
+ }
+
+ if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(AUDIO)) != 0)
+ return -EINVAL;
+
+ ret = hdmi_audio_infoframe_init(frame);
+ if (ret)
+ return ret;
+
+ ptr += HDMI_INFOFRAME_HEADER_SIZE;
+
+ frame->channels = ptr[0] & 0x7;
+ frame->coding_type = (ptr[0] >> 4) & 0xf;
+ frame->sample_size = ptr[1] & 0x3;
+ frame->sample_frequency = (ptr[1] >> 2) & 0x7;
+ frame->coding_type_ext = ptr[2] & 0x1f;
+ frame->channel_allocation = ptr[3];
+ frame->level_shift_value = (ptr[4] >> 3) & 0xf;
+ frame->downmix_inhibit = ptr[4] & 0x80 ? true : false;
+
+ return 0;
+}
+
+/**
+ * hdmi_vendor_infoframe_unpack() - unpack binary buffer to a HDMI vendor infoframe
+ * @buffer: source buffer
+ * @frame: HDMI Vendor infoframe
+ *
+ * Unpacks the information contained in binary @buffer into a structured
+ * @frame of the HDMI Vendor information frame.
+ * Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
+ * specification.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+static int
+hdmi_vendor_any_infoframe_unpack(union hdmi_vendor_any_infoframe *frame,
+ void *buffer)
+{
+ u8 *ptr = buffer;
+ size_t length;
+ int ret;
+ u8 hdmi_video_format;
+ struct hdmi_vendor_infoframe *hvf = &frame->hdmi;
+
+ if (ptr[0] != HDMI_INFOFRAME_TYPE_VENDOR ||
+ ptr[1] != 1 ||
+ (ptr[2] != 5 && ptr[2] != 6))
+ return -EINVAL;
+
+ length = ptr[2];
+
+ if (hdmi_infoframe_checksum(buffer,
+ HDMI_INFOFRAME_HEADER_SIZE + length) != 0)
+ return -EINVAL;
+
+ ptr += HDMI_INFOFRAME_HEADER_SIZE;
+
+ /* HDMI OUI */
+ if ((ptr[0] != 0x03) ||
+ (ptr[1] != 0x0c) ||
+ (ptr[2] != 0x00))
+ return -EINVAL;
+
+ hdmi_video_format = ptr[3] >> 5;
+
+ if (hdmi_video_format > 0x2)
+ return -EINVAL;
+
+ ret = hdmi_vendor_infoframe_init(hvf);
+ if (ret)
+ return ret;
+
+ hvf->length = length;
+
+ if (hdmi_video_format == 0x1) {
+ hvf->vic = ptr[4];
+ } else if (hdmi_video_format == 0x2) {
+ hvf->s3d_struct = ptr[4] >> 4;
+ if (hvf->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) {
+ if (length == 6)
+ hvf->s3d_ext_data = ptr[5] >> 4;
+ else
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * hdmi_infoframe_unpack() - unpack binary buffer to a HDMI infoframe
+ * @buffer: source buffer
+ * @frame: HDMI infoframe
+ *
+ * Unpacks the information contained in binary buffer @buffer into a structured
+ * @frame of a HDMI infoframe.
+ * Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
+ * specification.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int hdmi_infoframe_unpack(union hdmi_infoframe *frame, void *buffer)
+{
+ int ret;
+ u8 *ptr = buffer;
+
+ switch (ptr[0]) {
+ case HDMI_INFOFRAME_TYPE_AVI:
+ ret = hdmi_avi_infoframe_unpack(&frame->avi, buffer);
+ break;
+ case HDMI_INFOFRAME_TYPE_SPD:
+ ret = hdmi_spd_infoframe_unpack(&frame->spd, buffer);
+ break;
+ case HDMI_INFOFRAME_TYPE_AUDIO:
+ ret = hdmi_audio_infoframe_unpack(&frame->audio, buffer);
+ break;
+ case HDMI_INFOFRAME_TYPE_VENDOR:
+ ret = hdmi_vendor_any_infoframe_unpack(&frame->vendor, buffer);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL(hdmi_infoframe_unpack);
#define __LINUX_HDMI_H_
#include <linux/types.h>
+#include <linux/device.h>
enum hdmi_infoframe_type {
HDMI_INFOFRAME_TYPE_VENDOR = 0x81,
HDMI_INFOFRAME_TYPE_AUDIO = 0x84,
};
+#define HDMI_IEEE_OUI 0x000c03
#define HDMI_INFOFRAME_HEADER_SIZE 4
#define HDMI_AVI_INFOFRAME_SIZE 13
#define HDMI_SPD_INFOFRAME_SIZE 25
#define HDMI_AUDIO_INFOFRAME_SIZE 10
+#define HDMI_INFOFRAME_SIZE(type) \
+ (HDMI_INFOFRAME_HEADER_SIZE + HDMI_ ## type ## _INFOFRAME_SIZE)
+
+struct hdmi_any_infoframe {
+ enum hdmi_infoframe_type type;
+ unsigned char version;
+ unsigned char length;
+};
+
enum hdmi_colorspace {
HDMI_COLORSPACE_RGB,
HDMI_COLORSPACE_YUV422,
HDMI_COLORSPACE_YUV444,
+ HDMI_COLORSPACE_YUV420,
+ HDMI_COLORSPACE_RESERVED4,
+ HDMI_COLORSPACE_RESERVED5,
+ HDMI_COLORSPACE_RESERVED6,
+ HDMI_COLORSPACE_IDO_DEFINED,
};
enum hdmi_scan_mode {
HDMI_SCAN_MODE_NONE,
HDMI_SCAN_MODE_OVERSCAN,
HDMI_SCAN_MODE_UNDERSCAN,
+ HDMI_SCAN_MODE_RESERVED,
};
enum hdmi_colorimetry {
HDMI_PICTURE_ASPECT_NONE,
HDMI_PICTURE_ASPECT_4_3,
HDMI_PICTURE_ASPECT_16_9,
+ HDMI_PICTURE_ASPECT_RESERVED,
};
enum hdmi_active_aspect {
HDMI_EXTENDED_COLORIMETRY_S_YCC_601,
HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601,
HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB,
+
+ /* The following EC values are only defined in CEA-861-F. */
+ HDMI_EXTENDED_COLORIMETRY_BT2020_CONST_LUM,
+ HDMI_EXTENDED_COLORIMETRY_BT2020,
+ HDMI_EXTENDED_COLORIMETRY_RESERVED,
};
enum hdmi_quantization_range {
HDMI_QUANTIZATION_RANGE_DEFAULT,
HDMI_QUANTIZATION_RANGE_LIMITED,
HDMI_QUANTIZATION_RANGE_FULL,
+ HDMI_QUANTIZATION_RANGE_RESERVED,
};
/* non-uniform picture scaling */
};
enum hdmi_content_type {
- HDMI_CONTENT_TYPE_NONE,
+ HDMI_CONTENT_TYPE_GRAPHICS,
HDMI_CONTENT_TYPE_PHOTO,
HDMI_CONTENT_TYPE_CINEMA,
HDMI_CONTENT_TYPE_GAME,
unsigned char version;
unsigned char length;
enum hdmi_colorspace colorspace;
- bool active_info_valid;
- bool horizontal_bar_valid;
- bool vertical_bar_valid;
enum hdmi_scan_mode scan_mode;
enum hdmi_colorimetry colorimetry;
enum hdmi_picture_aspect picture_aspect;
HDMI_AUDIO_CODING_TYPE_MLP,
HDMI_AUDIO_CODING_TYPE_DST,
HDMI_AUDIO_CODING_TYPE_WMA_PRO,
+ HDMI_AUDIO_CODING_TYPE_CXT,
};
enum hdmi_audio_sample_size {
};
enum hdmi_audio_coding_type_ext {
- HDMI_AUDIO_CODING_TYPE_EXT_STREAM,
+ HDMI_AUDIO_CODING_TYPE_EXT_CT,
+ /*
+ * The next three CXT values are defined in CEA-861-E only.
+ * They do not exist in older versions, and in CEA-861-F they are
+ * defined as 'Not in use'.
+ */
HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC,
HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2,
HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND,
+
+ /* The following CXT values are only defined in CEA-861-F. */
+ HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC,
+ HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_V2,
+ HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC,
+ HDMI_AUDIO_CODING_TYPE_EXT_DRA,
+ HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_SURROUND,
+ HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC_SURROUND = 10,
};
struct hdmi_audio_infoframe {
ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
void *buffer, size_t size);
+enum hdmi_3d_structure {
+ HDMI_3D_STRUCTURE_INVALID = -1,
+ HDMI_3D_STRUCTURE_FRAME_PACKING = 0,
+ HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE,
+ HDMI_3D_STRUCTURE_LINE_ALTERNATIVE,
+ HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL,
+ HDMI_3D_STRUCTURE_L_DEPTH,
+ HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH,
+ HDMI_3D_STRUCTURE_TOP_AND_BOTTOM,
+ HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF = 8,
+};
+
+
struct hdmi_vendor_infoframe {
enum hdmi_infoframe_type type;
unsigned char version;
unsigned char length;
- u8 data[27];
+ unsigned int oui;
+ u8 vic;
+ enum hdmi_3d_structure s3d_struct;
+ unsigned int s3d_ext_data;
};
+int hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame);
ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
void *buffer, size_t size);
+union hdmi_vendor_any_infoframe {
+ struct {
+ enum hdmi_infoframe_type type;
+ unsigned char version;
+ unsigned char length;
+ unsigned int oui;
+ } any;
+ struct hdmi_vendor_infoframe hdmi;
+};
+
+union hdmi_infoframe {
+ struct hdmi_any_infoframe any;
+ struct hdmi_avi_infoframe avi;
+ struct hdmi_spd_infoframe spd;
+ union hdmi_vendor_any_infoframe vendor;
+ struct hdmi_audio_infoframe audio;
+};
+
+ssize_t
+hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer, size_t size);
+int hdmi_infoframe_unpack(union hdmi_infoframe *frame, void *buffer);
+void hdmi_infoframe_log(const char *level, struct device *dev,
+ union hdmi_infoframe *frame);
+
#endif /* _DRM_HDMI_H */
const struct v4l2_discrete_probe *probe,
s32 width, s32 height);
-bool v4l_match_dv_timings(const struct v4l2_dv_timings *t1,
- const struct v4l2_dv_timings *t2,
- unsigned pclock_delta);
-
-bool v4l2_detect_cvt(unsigned frame_height, unsigned hfreq, unsigned vsync,
- u32 polarities, struct v4l2_dv_timings *fmt);
-
-bool v4l2_detect_gtf(unsigned frame_height, unsigned hfreq, unsigned vsync,
- u32 polarities, struct v4l2_fract aspect,
- struct v4l2_dv_timings *fmt);
-
-struct v4l2_fract v4l2_calc_aspect_ratio(u8 hor_landscape, u8 vert_portrait);
-
void v4l2_get_timestamp(struct timeval *tv);
#endif /* V4L2_COMMON_H_ */
--- /dev/null
+/*
+ * v4l2-dv-timings - Internal header with dv-timings helper functions
+ *
+ * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef __V4L2_DV_TIMINGS_H
+#define __V4L2_DV_TIMINGS_H
+
+#include <linux/videodev2.h>
+
+/**
+ * v4l2_dv_timings_presets: list of all dv_timings presets.
+ */
+extern const struct v4l2_dv_timings v4l2_dv_timings_presets[];
+
+/**
+ * v4l2_check_dv_timings_fnc - timings check callback
+ *
+ * @t: the v4l2_dv_timings struct.
+ * @handle: a handle from the driver.
+ *
+ * Returns true if the given timings are valid.
+ */
+typedef bool v4l2_check_dv_timings_fnc(const struct v4l2_dv_timings *t, void *handle);
+
+/**
+ * v4l2_valid_dv_timings() - are these timings valid?
+ *
+ * @t: the v4l2_dv_timings struct.
+ * @cap: the v4l2_dv_timings_cap capabilities.
+ * @fnc: callback to check if this timing is OK. May be NULL.
+ * @fnc_handle: a handle that is passed on to @fnc.
+ *
+ * Returns true if the given dv_timings struct is supported by the
+ * hardware capabilities and the callback function (if non-NULL), returns
+ * false otherwise.
+ */
+bool v4l2_valid_dv_timings(const struct v4l2_dv_timings *t,
+ const struct v4l2_dv_timings_cap *cap,
+ v4l2_check_dv_timings_fnc fnc,
+ void *fnc_handle);
+
+/**
+ * v4l2_enum_dv_timings_cap() - Helper function to enumerate possible DV
+ * timings based on capabilities
+ *
+ * @t: the v4l2_enum_dv_timings struct.
+ * @cap: the v4l2_dv_timings_cap capabilities.
+ * @fnc: callback to check if this timing is OK. May be NULL.
+ * @fnc_handle: a handle that is passed on to @fnc.
+ *
+ * This enumerates dv_timings using the full list of possible CEA-861 and DMT
+ * timings, filtering out any timings that are not supported based on the
+ * hardware capabilities and the callback function (if non-NULL).
+ *
+ * If a valid timing for the given index is found, it will fill in @t and
+ * return 0, otherwise it returns -EINVAL.
+ */
+int v4l2_enum_dv_timings_cap(struct v4l2_enum_dv_timings *t,
+ const struct v4l2_dv_timings_cap *cap,
+ v4l2_check_dv_timings_fnc fnc,
+ void *fnc_handle);
+
+/**
+ * v4l2_find_dv_timings_cap() - Find the closest timings struct
+ *
+ * @t: the v4l2_enum_dv_timings struct.
+ * @cap: the v4l2_dv_timings_cap capabilities.
+ * @pclock_delta: maximum delta between t->pixelclock and the timing struct
+ * under consideration.
+ * @fnc: callback to check if a given timings struct is OK. May be NULL.
+ * @fnc_handle: a handle that is passed on to @fnc.
+ *
+ * This function tries to map the given timings to an entry in the
+ * full list of possible CEA-861 and DMT timings, filtering out any timings
+ * that are not supported based on the hardware capabilities and the callback
+ * function (if non-NULL).
+ *
+ * On success it will fill in @t with the found timings and it returns true.
+ * On failure it will return false.
+ */
+bool v4l2_find_dv_timings_cap(struct v4l2_dv_timings *t,
+ const struct v4l2_dv_timings_cap *cap,
+ unsigned pclock_delta,
+ v4l2_check_dv_timings_fnc fnc,
+ void *fnc_handle);
+
+/**
+ * v4l2_match_dv_timings() - do two timings match?
+ *
+ * @measured: the measured timings data.
+ * @standard: the timings according to the standard.
+ * @pclock_delta: maximum delta in Hz between standard->pixelclock and
+ * the measured timings.
+ *
+ * Returns true if the two timings match, returns false otherwise.
+ */
+bool v4l2_match_dv_timings(const struct v4l2_dv_timings *measured,
+ const struct v4l2_dv_timings *standard,
+ unsigned pclock_delta);
+
+/**
+ * v4l2_print_dv_timings() - log the contents of a dv_timings struct
+ * @dev_prefix:device prefix for each log line.
+ * @prefix: additional prefix for each log line, may be NULL.
+ * @t: the timings data.
+ * @detailed: if true, give a detailed log.
+ */
+void v4l2_print_dv_timings(const char *dev_prefix, const char *prefix,
+ const struct v4l2_dv_timings *t, bool detailed);
+
+/**
+ * v4l2_detect_cvt - detect if the given timings follow the CVT standard
+ *
+ * @frame_height - the total height of the frame (including blanking) in lines.
+ * @hfreq - the horizontal frequency in Hz.
+ * @vsync - the height of the vertical sync in lines.
+ * @active_width - active width of image (does not include blanking). This
+ * information is needed only in case of version 2 of reduced blanking.
+ * In other cases, this parameter does not have any effect on timings.
+ * @polarities - the horizontal and vertical polarities (same as struct
+ * v4l2_bt_timings polarities).
+ * @interlaced - if this flag is true, it indicates interlaced format
+ * @fmt - the resulting timings.
+ *
+ * This function will attempt to detect if the given values correspond to a
+ * valid CVT format. If so, then it will return true, and fmt will be filled
+ * in with the found CVT timings.
+ */
+bool v4l2_detect_cvt(unsigned frame_height, unsigned hfreq, unsigned vsync,
+ unsigned active_width, u32 polarities, bool interlaced,
+ struct v4l2_dv_timings *fmt);
+
+/**
+ * v4l2_detect_gtf - detect if the given timings follow the GTF standard
+ *
+ * @frame_height - the total height of the frame (including blanking) in lines.
+ * @hfreq - the horizontal frequency in Hz.
+ * @vsync - the height of the vertical sync in lines.
+ * @polarities - the horizontal and vertical polarities (same as struct
+ * v4l2_bt_timings polarities).
+ * @interlaced - if this flag is true, it indicates interlaced format
+ * @aspect - preferred aspect ratio. GTF has no method of determining the
+ * aspect ratio in order to derive the image width from the
+ * image height, so it has to be passed explicitly. Usually
+ * the native screen aspect ratio is used for this. If it
+ * is not filled in correctly, then 16:9 will be assumed.
+ * @fmt - the resulting timings.
+ *
+ * This function will attempt to detect if the given values correspond to a
+ * valid GTF format. If so, then it will return true, and fmt will be filled
+ * in with the found GTF timings.
+ */
+bool v4l2_detect_gtf(unsigned frame_height, unsigned hfreq, unsigned vsync,
+ u32 polarities, bool interlaced, struct v4l2_fract aspect,
+ struct v4l2_dv_timings *fmt);
+
+/**
+ * v4l2_calc_aspect_ratio - calculate the aspect ratio based on bytes
+ * 0x15 and 0x16 from the EDID.
+ *
+ * @hor_landscape - byte 0x15 from the EDID.
+ * @vert_portrait - byte 0x16 from the EDID.
+ *
+ * Determines the aspect ratio from the EDID.
+ * See VESA Enhanced EDID standard, release A, rev 2, section 3.6.2:
+ * "Horizontal and Vertical Screen Size or Aspect Ratio"
+ */
+struct v4l2_fract v4l2_calc_aspect_ratio(u8 hor_landscape, u8 vert_portrait);
+
+#endif
void v4l2_event_unsubscribe_all(struct v4l2_fh *fh);
int v4l2_event_subdev_unsubscribe(struct v4l2_subdev *sd, struct v4l2_fh *fh,
struct v4l2_event_subscription *sub);
+int v4l2_src_change_event_subscribe(struct v4l2_fh *fh,
+ const struct v4l2_event_subscription *sub);
+int v4l2_src_change_event_subdev_subscribe(struct v4l2_subdev *sd,
+ struct v4l2_fh *fh, struct v4l2_event_subscription *sub);
#endif /* V4L2_EVENT_H */
struct v4l2_enum_dv_timings *timings);
int (*vidioc_dv_timings_cap) (struct file *file, void *fh,
struct v4l2_dv_timings_cap *cap);
+ int (*vidioc_g_edid) (struct file *file, void *fh, struct v4l2_edid *edid);
+ int (*vidioc_s_edid) (struct file *file, void *fh, struct v4l2_edid *edid);
int (*vidioc_subscribe_event) (struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub);
pix_fmt->height = mbus_fmt->height;
pix_fmt->field = mbus_fmt->field;
pix_fmt->colorspace = mbus_fmt->colorspace;
+ pix_fmt->ycbcr_enc = mbus_fmt->ycbcr_enc;
+ pix_fmt->quantization = mbus_fmt->quantization;
+ pix_fmt->xfer_func = mbus_fmt->xfer_func;
}
static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt,
mbus_fmt->height = pix_fmt->height;
mbus_fmt->field = pix_fmt->field;
mbus_fmt->colorspace = pix_fmt->colorspace;
+ mbus_fmt->ycbcr_enc = pix_fmt->ycbcr_enc;
+ mbus_fmt->quantization = pix_fmt->quantization;
+ mbus_fmt->xfer_func = pix_fmt->xfer_func;
mbus_fmt->code = code;
}
struct v4l2_device;
struct v4l2_ctrl_handler;
+struct v4l2_event;
struct v4l2_event_subscription;
struct v4l2_fh;
struct v4l2_subdev;
#define v4l2_subdev_has_op(sd, o, f) \
((sd)->ops->o && (sd)->ops->o->f)
+void v4l2_subdev_notify_event(struct v4l2_subdev *sd,
+ const struct v4l2_event *ev);
+
#endif
* @waiting_for_buffers: used in poll() to check if vb2 is still waiting for
* buffers. Only set for capture queues if qbuf has not yet been
* called since poll() needs to return POLLERR in that situation.
+ * @error: a fatal error occurred on the queue
* @fileio: file io emulator internal data, used only if emulator is active
*/
struct vb2_queue {
int __must_check vb2_queue_init(struct vb2_queue *q);
void vb2_queue_release(struct vb2_queue *q);
+void vb2_queue_error(struct vb2_queue *q);
int vb2_qbuf(struct vb2_queue *q, struct v4l2_buffer *b);
int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb);
unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait);
size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count,
loff_t *ppos, int nonblock);
-size_t vb2_write(struct vb2_queue *q, char __user *data, size_t count,
+size_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count,
loff_t *ppos, int nonblock);
/**
int vb2_fop_mmap(struct file *file, struct vm_area_struct *vma);
int vb2_fop_release(struct file *file);
-ssize_t vb2_fop_write(struct file *file, char __user *buf,
+ssize_t vb2_fop_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos);
ssize_t vb2_fop_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos);
__u32 start_block;
__u32 blocks;
__u32 reserved[5];
- __u8 *edid;
+ __u8 __user *edid;
};
#endif /* __V4L2_COMMON__ */
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(720, 480, 1, 0, \
13500000, 19, 62, 57, 4, 3, 15, 4, 3, 16, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_HALF_LINE) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_HALF_LINE | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_720X480P59_94 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(720, 480, 0, 0, \
27000000, 16, 62, 60, 9, 6, 30, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
/* Note: these are the nominal timings, for HDMI links this format is typically
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(720, 576, 1, 0, \
13500000, 12, 63, 69, 2, 3, 19, 2, 3, 20, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_HALF_LINE) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_HALF_LINE | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_720X576P50 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(720, 576, 0, 0, \
27000000, 12, 64, 68, 5, 5, 39, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1280X720P24 { \
V4L2_INIT_BT_TIMINGS(1280, 720, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 2420, 40, 220, 5, 5, 20, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1280X720P30 { \
V4L2_INIT_BT_TIMINGS(1280, 720, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 1760, 40, 220, 5, 5, 20, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1280X720P50 { \
V4L2_INIT_BT_TIMINGS(1280, 720, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 440, 40, 220, 5, 5, 20, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1280X720P60 { \
V4L2_INIT_BT_TIMINGS(1280, 720, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 110, 40, 220, 5, 5, 20, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080P24 { \
V4L2_INIT_BT_TIMINGS(1920, 1080, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 638, 44, 148, 4, 5, 36, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080P25 { \
V4L2_INIT_BT_TIMINGS(1920, 1080, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 528, 44, 148, 4, 5, 36, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080P30 { \
V4L2_INIT_BT_TIMINGS(1920, 1080, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 88, 44, 148, 4, 5, 36, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080I50 { \
V4L2_INIT_BT_TIMINGS(1920, 1080, 1, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 528, 44, 148, 2, 5, 15, 2, 5, 16, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_HALF_LINE) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_HALF_LINE | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080P50 { \
V4L2_INIT_BT_TIMINGS(1920, 1080, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
148500000, 528, 44, 148, 4, 5, 36, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080I60 { \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 88, 44, 148, 2, 5, 15, 2, 5, 16, \
V4L2_DV_BT_STD_CEA861, \
- V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_HALF_LINE) \
+ V4L2_DV_FL_CAN_REDUCE_FPS | \
+ V4L2_DV_FL_HALF_LINE | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080P60 { \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
148500000, 88, 44, 148, 4, 5, 36, 0, 0, 0, \
V4L2_DV_BT_STD_DMT | V4L2_DV_BT_STD_CEA861, \
- V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
+}
+
+#define V4L2_DV_BT_CEA_3840X2160P24 { \
+ .type = V4L2_DV_BT_656_1120, \
+ V4L2_INIT_BT_TIMINGS(3840, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
+ 297000000, 1276, 88, 296, 8, 10, 72, 0, 0, 0, \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
+}
+
+#define V4L2_DV_BT_CEA_3840X2160P25 { \
+ .type = V4L2_DV_BT_656_1120, \
+ V4L2_INIT_BT_TIMINGS(3840, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
+ 297000000, 1056, 88, 296, 8, 10, 72, 0, 0, 0, \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
+}
+
+#define V4L2_DV_BT_CEA_3840X2160P30 { \
+ .type = V4L2_DV_BT_656_1120, \
+ V4L2_INIT_BT_TIMINGS(3840, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
+ 297000000, 176, 88, 296, 8, 10, 72, 0, 0, 0, \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
+}
+
+#define V4L2_DV_BT_CEA_3840X2160P50 { \
+ .type = V4L2_DV_BT_656_1120, \
+ V4L2_INIT_BT_TIMINGS(3840, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
+ 594000000, 1056, 88, 296, 8, 10, 72, 0, 0, 0, \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
+}
+
+#define V4L2_DV_BT_CEA_3840X2160P60 { \
+ .type = V4L2_DV_BT_656_1120, \
+ V4L2_INIT_BT_TIMINGS(3840, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
+ 594000000, 176, 88, 296, 8, 10, 72, 0, 0, 0, \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
+}
+
+#define V4L2_DV_BT_CEA_4096X2160P24 { \
+ .type = V4L2_DV_BT_656_1120, \
+ V4L2_INIT_BT_TIMINGS(4096, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
+ 297000000, 1020, 88, 296, 8, 10, 72, 0, 0, 0, \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
+}
+
+#define V4L2_DV_BT_CEA_4096X2160P25 { \
+ .type = V4L2_DV_BT_656_1120, \
+ V4L2_INIT_BT_TIMINGS(4096, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
+ 297000000, 968, 88, 128, 8, 10, 72, 0, 0, 0, \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
+}
+
+#define V4L2_DV_BT_CEA_4096X2160P30 { \
+ .type = V4L2_DV_BT_656_1120, \
+ V4L2_INIT_BT_TIMINGS(4096, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
+ 297000000, 88, 88, 128, 8, 10, 72, 0, 0, 0, \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
+}
+
+#define V4L2_DV_BT_CEA_4096X2160P50 { \
+ .type = V4L2_DV_BT_656_1120, \
+ V4L2_INIT_BT_TIMINGS(4096, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
+ 594000000, 968, 88, 128, 8, 10, 72, 0, 0, 0, \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
+}
+
+#define V4L2_DV_BT_CEA_4096X2160P60 { \
+ .type = V4L2_DV_BT_656_1120, \
+ V4L2_INIT_BT_TIMINGS(4096, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
+ 594000000, 88, 88, 128, 8, 10, 72, 0, 0, 0, \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
V4L2_DV_BT_STD_DMT, 0) \
}
+/* 4K resolutions */
+#define V4L2_DV_BT_DMT_4096X2160P60_RB { \
+ .type = V4L2_DV_BT_656_1120, \
+ V4L2_INIT_BT_TIMINGS(4096, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
+ 556744000, 8, 32, 40, 48, 8, 6, 0, 0, 0, \
+ V4L2_DV_BT_STD_DMT | V4L2_DV_BT_STD_CVT, \
+ V4L2_DV_FL_REDUCED_BLANKING) \
+}
+
+#define V4L2_DV_BT_DMT_4096X2160P59_94_RB { \
+ .type = V4L2_DV_BT_656_1120, \
+ V4L2_INIT_BT_TIMINGS(4096, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
+ 556188000, 8, 32, 40, 48, 8, 6, 0, 0, 0, \
+ V4L2_DV_BT_STD_DMT | V4L2_DV_BT_STD_CVT, \
+ V4L2_DV_FL_REDUCED_BLANKING) \
+}
+
#endif
* @code: data format code (from enum v4l2_mbus_pixelcode)
* @field: used interlacing type (from enum v4l2_field)
* @colorspace: colorspace of the data (from enum v4l2_colorspace)
+ * @ycbcr_enc: YCbCr encoding of the data (from enum v4l2_ycbcr_encoding)
+ * @quantization: quantization of the data (from enum v4l2_quantization)
+ * @xfer_func: transfer function of the data (from enum v4l2_xfer_func)
*/
struct v4l2_mbus_framefmt {
__u32 width;
__u32 code;
__u32 field;
__u32 colorspace;
- __u32 reserved[7];
+ __u16 ycbcr_enc;
+ __u16 quantization;
+ __u16 xfer_func;
+ __u16 reserved[11];
};
#endif
__u32 reserved[8];
};
-struct v4l2_subdev_edid {
- __u32 pad;
- __u32 start_block;
- __u32 blocks;
- __u32 reserved[5];
- __u8 __user *edid;
-};
+/* Backwards compatibility define --- to be removed */
+#define v4l2_subdev_edid v4l2_edid
#define VIDIOC_SUBDEV_G_FMT _IOWR('V', 4, struct v4l2_subdev_format)
#define VIDIOC_SUBDEV_S_FMT _IOWR('V', 5, struct v4l2_subdev_format)
_IOWR('V', 61, struct v4l2_subdev_selection)
#define VIDIOC_SUBDEV_S_SELECTION \
_IOWR('V', 62, struct v4l2_subdev_selection)
-#define VIDIOC_SUBDEV_G_EDID _IOWR('V', 40, struct v4l2_subdev_edid)
-#define VIDIOC_SUBDEV_S_EDID _IOWR('V', 41, struct v4l2_subdev_edid)
+/* These two G/S_EDID ioctls are identical to the ioctls in videodev2.h */
+#define VIDIOC_SUBDEV_G_EDID _IOWR('V', 40, struct v4l2_edid)
+#define VIDIOC_SUBDEV_S_EDID _IOWR('V', 41, struct v4l2_edid)
#endif
/* Four-character-code (FOURCC) */
#define v4l2_fourcc(a, b, c, d)\
((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))
+#define v4l2_fourcc_be(a, b, c, d) (v4l2_fourcc(a, b, c, d) | (1 << 31))
/*
* E N U M S
(field) == V4L2_FIELD_INTERLACED_BT ||\
(field) == V4L2_FIELD_SEQ_TB ||\
(field) == V4L2_FIELD_SEQ_BT)
+#define V4L2_FIELD_HAS_T_OR_B(field) \
+ ((field) == V4L2_FIELD_BOTTOM ||\
+ (field) == V4L2_FIELD_TOP ||\
+ (field) == V4L2_FIELD_ALTERNATE)
enum v4l2_buf_type {
V4L2_BUF_TYPE_VIDEO_CAPTURE = 1,
/* see also http://vektor.theorem.ca/graphics/ycbcr/ */
enum v4l2_colorspace {
- /* ITU-R 601 -- broadcast NTSC/PAL */
+ /*
+ * Default colorspace, i.e. let the driver figure it out.
+ * Can only be used with video capture.
+ */
+ V4L2_COLORSPACE_DEFAULT = 0,
+
+ /* SMPTE 170M: used for broadcast NTSC/PAL SDTV */
V4L2_COLORSPACE_SMPTE170M = 1,
- /* 1125-Line (US) HDTV */
+ /* Obsolete pre-1998 SMPTE 240M HDTV standard, superseded by Rec 709 */
V4L2_COLORSPACE_SMPTE240M = 2,
- /* HD and modern captures. */
+ /* Rec.709: used for HDTV */
V4L2_COLORSPACE_REC709 = 3,
- /* broken BT878 extents (601, luma range 16-253 instead of 16-235) */
+ /*
+ * Deprecated, do not use. No driver will ever return this. This was
+ * based on a misunderstanding of the bt878 datasheet.
+ */
V4L2_COLORSPACE_BT878 = 4,
- /* These should be useful. Assume 601 extents. */
+ /*
+ * NTSC 1953 colorspace. This only makes sense when dealing with
+ * really, really old NTSC recordings. Superseded by SMPTE 170M.
+ */
V4L2_COLORSPACE_470_SYSTEM_M = 5,
+
+ /*
+ * EBU Tech 3213 PAL/SECAM colorspace. This only makes sense when
+ * dealing with really old PAL/SECAM recordings. Superseded by
+ * SMPTE 170M.
+ */
V4L2_COLORSPACE_470_SYSTEM_BG = 6,
- /* I know there will be cameras that send this. So, this is
- * unspecified chromaticities and full 0-255 on each of the
- * Y'CbCr components
+ /*
+ * Effectively shorthand for V4L2_COLORSPACE_SRGB, V4L2_YCBCR_ENC_601
+ * and V4L2_QUANTIZATION_FULL_RANGE. To be used for (Motion-)JPEG.
*/
V4L2_COLORSPACE_JPEG = 7,
- /* For RGB colourspaces, this is probably a good start. */
+ /* For RGB colorspaces such as produces by most webcams. */
V4L2_COLORSPACE_SRGB = 8,
+
+ /* AdobeRGB colorspace */
+ V4L2_COLORSPACE_ADOBERGB = 9,
+
+ /* BT.2020 colorspace, used for UHDTV. */
+ V4L2_COLORSPACE_BT2020 = 10,
+
+ /* Raw colorspace: for RAW unprocessed images */
+ V4L2_COLORSPACE_RAW = 11,
+};
+
+/*
+ * Determine how COLORSPACE_DEFAULT should map to a proper colorspace.
+ * This depends on whether this is a SDTV image (use SMPTE 170M), an
+ * HDTV image (use Rec. 709), or something else (use sRGB).
+ */
+#define V4L2_MAP_COLORSPACE_DEFAULT(is_sdtv, is_hdtv) \
+ ((is_sdtv) ? V4L2_COLORSPACE_SMPTE170M : \
+ ((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB))
+
+enum v4l2_xfer_func {
+ /*
+ * Mapping of V4L2_XFER_FUNC_DEFAULT to actual transfer functions
+ * for the various colorspaces:
+ *
+ * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
+ * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_REC709 and
+ * V4L2_COLORSPACE_BT2020: V4L2_XFER_FUNC_709
+ *
+ * V4L2_COLORSPACE_SRGB, V4L2_COLORSPACE_JPEG: V4L2_XFER_FUNC_SRGB
+ *
+ * V4L2_COLORSPACE_ADOBERGB: V4L2_XFER_FUNC_ADOBERGB
+ *
+ * V4L2_COLORSPACE_SMPTE240M: V4L2_XFER_FUNC_SMPTE240M
+ *
+ * V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE
+ */
+ V4L2_XFER_FUNC_DEFAULT = 0,
+ V4L2_XFER_FUNC_709 = 1,
+ V4L2_XFER_FUNC_SRGB = 2,
+ V4L2_XFER_FUNC_ADOBERGB = 3,
+ V4L2_XFER_FUNC_SMPTE240M = 4,
+ V4L2_XFER_FUNC_NONE = 5,
+};
+
+/*
+ * Determine how XFER_FUNC_DEFAULT should map to a proper transfer function.
+ * This depends on the colorspace.
+ */
+#define V4L2_MAP_XFER_FUNC_DEFAULT(colsp) \
+ ((colsp) == V4L2_COLORSPACE_ADOBERGB ? V4L2_XFER_FUNC_ADOBERGB : \
+ ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_XFER_FUNC_SMPTE240M : \
+ ((colsp) == V4L2_COLORSPACE_RAW ? V4L2_XFER_FUNC_NONE : \
+ ((colsp) == V4L2_COLORSPACE_SRGB || (colsp) == V4L2_COLORSPACE_JPEG ? \
+ V4L2_XFER_FUNC_SRGB : V4L2_XFER_FUNC_709))))
+
+enum v4l2_ycbcr_encoding {
+ /*
+ * Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the
+ * various colorspaces:
+ *
+ * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
+ * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_ADOBERGB and
+ * V4L2_COLORSPACE_JPEG: V4L2_YCBCR_ENC_601
+ *
+ * V4L2_COLORSPACE_REC709: V4L2_YCBCR_ENC_709
+ *
+ * V4L2_COLORSPACE_SRGB: V4L2_YCBCR_ENC_SYCC
+ *
+ * V4L2_COLORSPACE_BT2020: V4L2_YCBCR_ENC_BT2020
+ *
+ * V4L2_COLORSPACE_SMPTE240M: V4L2_YCBCR_ENC_SMPTE240M
+ */
+ V4L2_YCBCR_ENC_DEFAULT = 0,
+
+ /* ITU-R 601 -- SDTV */
+ V4L2_YCBCR_ENC_601 = 1,
+
+ /* Rec. 709 -- HDTV */
+ V4L2_YCBCR_ENC_709 = 2,
+
+ /* ITU-R 601/EN 61966-2-4 Extended Gamut -- SDTV */
+ V4L2_YCBCR_ENC_XV601 = 3,
+
+ /* Rec. 709/EN 61966-2-4 Extended Gamut -- HDTV */
+ V4L2_YCBCR_ENC_XV709 = 4,
+
+ /* sYCC (Y'CbCr encoding of sRGB) */
+ V4L2_YCBCR_ENC_SYCC = 5,
+
+ /* BT.2020 Non-constant Luminance Y'CbCr */
+ V4L2_YCBCR_ENC_BT2020 = 6,
+
+ /* BT.2020 Constant Luminance Y'CbcCrc */
+ V4L2_YCBCR_ENC_BT2020_CONST_LUM = 7,
+
+ /* SMPTE 240M -- Obsolete HDTV */
+ V4L2_YCBCR_ENC_SMPTE240M = 8,
};
+/*
+ * Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding.
+ * This depends on the colorspace.
+ */
+#define V4L2_MAP_YCBCR_ENC_DEFAULT(colsp) \
+ ((colsp) == V4L2_COLORSPACE_REC709 ? V4L2_YCBCR_ENC_709 : \
+ ((colsp) == V4L2_COLORSPACE_BT2020 ? V4L2_YCBCR_ENC_BT2020 : \
+ ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_YCBCR_ENC_SMPTE240M : \
+ V4L2_YCBCR_ENC_601)))
+
+enum v4l2_quantization {
+ /*
+ * The default for R'G'B' quantization is always full range, except
+ * for the BT2020 colorspace. For Y'CbCr the quantization is always
+ * limited range, except for COLORSPACE_JPEG, SYCC, XV601 or XV709:
+ * those are full range.
+ */
+ V4L2_QUANTIZATION_DEFAULT = 0,
+ V4L2_QUANTIZATION_FULL_RANGE = 1,
+ V4L2_QUANTIZATION_LIM_RANGE = 2,
+};
+
+/*
+ * Determine how QUANTIZATION_DEFAULT should map to a proper quantization.
+ * This depends on whether the image is RGB or not, the colorspace and the
+ * Y'CbCr encoding.
+ */
+#define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb, colsp, ycbcr_enc) \
+ (((is_rgb) && (colsp) == V4L2_COLORSPACE_BT2020) ? V4L2_QUANTIZATION_LIM_RANGE : \
+ (((is_rgb) || (ycbcr_enc) == V4L2_YCBCR_ENC_XV601 || \
+ (ycbcr_enc) == V4L2_YCBCR_ENC_XV709 || (colsp) == V4L2_COLORSPACE_JPEG) ? \
+ V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE))
+
enum v4l2_priority {
V4L2_PRIORITY_UNSET = 0, /* not initialized */
V4L2_PRIORITY_BACKGROUND = 1,
#define V4L2_CAP_AUDIO 0x00020000 /* has audio support */
#define V4L2_CAP_RADIO 0x00040000 /* is a radio device */
#define V4L2_CAP_MODULATOR 0x00080000 /* has a modulator */
+#define V4L2_CAP_EXT_PIX_FORMAT 0x00200000 /* Supports the extended pixel format */
#define V4L2_CAP_READWRITE 0x01000000 /* read/write systemcalls */
#define V4L2_CAP_ASYNCIO 0x02000000 /* async I/O */
#define V4L2_CAP_DEVICE_CAPS 0x80000000 /* sets device capabilities field */
+/* priv field value to indicates that subsequent fields are valid. */
+#define V4L2_PIX_FMT_PRIV_MAGIC 0xfeedcafe
+
/*
* V I D E O I M A G E F O R M A T
*/
__u32 sizeimage;
__u32 colorspace; /* enum v4l2_colorspace */
__u32 priv; /* private data, depends on pixelformat */
+ __u32 flags; /* format flags (V4L2_PIX_FMT_FLAG_*) */
+ __u32 ycbcr_enc; /* enum v4l2_ycbcr_encoding */
+ __u32 quantization; /* enum v4l2_quantization */
+ __u32 xfer_func; /* enum v4l2_xfer_func */
};
/* Pixel format FOURCC depth Description */
/* RGB formats */
#define V4L2_PIX_FMT_RGB332 v4l2_fourcc('R', 'G', 'B', '1') /* 8 RGB-3-3-2 */
#define V4L2_PIX_FMT_RGB444 v4l2_fourcc('R', '4', '4', '4') /* 16 xxxxrrrr ggggbbbb */
+#define V4L2_PIX_FMT_ARGB444 v4l2_fourcc('A', 'R', '1', '2') /* 16 aaaarrrr ggggbbbb */
+#define V4L2_PIX_FMT_XRGB444 v4l2_fourcc('X', 'R', '1', '2') /* 16 xxxxrrrr ggggbbbb */
#define V4L2_PIX_FMT_RGB555 v4l2_fourcc('R', 'G', 'B', 'O') /* 16 RGB-5-5-5 */
+#define V4L2_PIX_FMT_ARGB555 v4l2_fourcc('A', 'R', '1', '5') /* 16 ARGB-1-5-5-5 */
+#define V4L2_PIX_FMT_XRGB555 v4l2_fourcc('X', 'R', '1', '5') /* 16 XRGB-1-5-5-5 */
#define V4L2_PIX_FMT_RGB565 v4l2_fourcc('R', 'G', 'B', 'P') /* 16 RGB-5-6-5 */
#define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R', 'G', 'B', 'Q') /* 16 RGB-5-5-5 BE */
+#define V4L2_PIX_FMT_ARGB555X v4l2_fourcc_be('A', 'R', '1', '5') /* 16 ARGB-5-5-5 BE */
+#define V4L2_PIX_FMT_XRGB555X v4l2_fourcc_be('X', 'R', '1', '5') /* 16 XRGB-5-5-5 BE */
#define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R', 'G', 'B', 'R') /* 16 RGB-5-6-5 BE */
#define V4L2_PIX_FMT_BGR666 v4l2_fourcc('B', 'G', 'R', 'H') /* 18 BGR-6-6-6 */
#define V4L2_PIX_FMT_BGR24 v4l2_fourcc('B', 'G', 'R', '3') /* 24 BGR-8-8-8 */
#define V4L2_PIX_FMT_RGB24 v4l2_fourcc('R', 'G', 'B', '3') /* 24 RGB-8-8-8 */
#define V4L2_PIX_FMT_BGR32 v4l2_fourcc('B', 'G', 'R', '4') /* 32 BGR-8-8-8-8 */
+#define V4L2_PIX_FMT_ABGR32 v4l2_fourcc('A', 'R', '2', '4') /* 32 BGRA-8-8-8-8 */
+#define V4L2_PIX_FMT_XBGR32 v4l2_fourcc('X', 'R', '2', '4') /* 32 BGRX-8-8-8-8 */
#define V4L2_PIX_FMT_RGB32 v4l2_fourcc('R', 'G', 'B', '4') /* 32 RGB-8-8-8-8 */
+#define V4L2_PIX_FMT_ARGB32 v4l2_fourcc('B', 'A', '2', '4') /* 32 ARGB-8-8-8-8 */
+#define V4L2_PIX_FMT_XRGB32 v4l2_fourcc('B', 'X', '2', '4') /* 32 XRGB-8-8-8-8 */
/* Grey formats */
#define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */
#define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */
#define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ') /* 12 Greyscale */
#define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */
+#define V4L2_PIX_FMT_Y16_BE v4l2_fourcc_be('Y', '1', '6', ' ') /* 16 Greyscale BE */
/* Grey bit-packed formats */
#define V4L2_PIX_FMT_Y10BPACK v4l2_fourcc('Y', '1', '0', 'B') /* 10 Greyscale bit-packed */
/* two non contiguous planes - one Y, one Cr + Cb interleaved */
#define V4L2_PIX_FMT_NV12M v4l2_fourcc('N', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 */
#define V4L2_PIX_FMT_NV21M v4l2_fourcc('N', 'M', '2', '1') /* 21 Y/CrCb 4:2:0 */
+#define V4L2_PIX_FMT_NV16M v4l2_fourcc('N', 'M', '1', '6') /* 16 Y/CbCr 4:2:2 */
+#define V4L2_PIX_FMT_NV61M v4l2_fourcc('N', 'M', '6', '1') /* 16 Y/CrCb 4:2:2 */
#define V4L2_PIX_FMT_NV12MT v4l2_fourcc('T', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 64x32 macroblocks */
#define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 16x16 macroblocks */
#define V4L2_PIX_FMT_SGBRG10 v4l2_fourcc('G', 'B', '1', '0') /* 10 GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG10 v4l2_fourcc('B', 'A', '1', '0') /* 10 GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB10 v4l2_fourcc('R', 'G', '1', '0') /* 10 RGRG.. GBGB.. */
-#define V4L2_PIX_FMT_SBGGR12 v4l2_fourcc('B', 'G', '1', '2') /* 12 BGBG.. GRGR.. */
-#define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12 GBGB.. RGRG.. */
-#define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12 GRGR.. BGBG.. */
-#define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12 RGRG.. GBGB.. */
+ /* 10bit raw bayer packed, 5 bytes for every 4 pixels */
+#define V4L2_PIX_FMT_SBGGR10P v4l2_fourcc('p', 'B', 'A', 'A')
+#define V4L2_PIX_FMT_SGBRG10P v4l2_fourcc('p', 'G', 'A', 'A')
+#define V4L2_PIX_FMT_SGRBG10P v4l2_fourcc('p', 'g', 'A', 'A')
+#define V4L2_PIX_FMT_SRGGB10P v4l2_fourcc('p', 'R', 'A', 'A')
/* 10bit raw bayer a-law compressed to 8 bits */
#define V4L2_PIX_FMT_SBGGR10ALAW8 v4l2_fourcc('a', 'B', 'A', '8')
#define V4L2_PIX_FMT_SGBRG10ALAW8 v4l2_fourcc('a', 'G', 'A', '8')
#define V4L2_PIX_FMT_SGBRG10DPCM8 v4l2_fourcc('b', 'G', 'A', '8')
#define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '0')
#define V4L2_PIX_FMT_SRGGB10DPCM8 v4l2_fourcc('b', 'R', 'A', '8')
- /*
- * 10bit raw bayer, expanded to 16 bits
- * xxxxrrrrrrrrrrxxxxgggggggggg xxxxggggggggggxxxxbbbbbbbbbb...
- */
+#define V4L2_PIX_FMT_SBGGR12 v4l2_fourcc('B', 'G', '1', '2') /* 12 BGBG.. GRGR.. */
+#define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12 GBGB.. RGRG.. */
+#define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12 GRGR.. BGBG.. */
+#define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12 RGRG.. GBGB.. */
#define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16 BGBG.. GRGR.. */
/* compressed formats */
#define V4L2_PIX_FMT_H263 v4l2_fourcc('H', '2', '6', '3') /* H263 */
#define V4L2_PIX_FMT_MPEG1 v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES */
#define V4L2_PIX_FMT_MPEG2 v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES */
-#define V4L2_PIX_FMT_MPEG4 v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 ES */
+#define V4L2_PIX_FMT_MPEG4 v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 part 2 ES */
#define V4L2_PIX_FMT_XVID v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid */
#define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */
#define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */
#define V4L2_PIX_FMT_SE401 v4l2_fourcc('S', '4', '0', '1') /* se401 janggu compressed rgb */
#define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */
+/* SDR formats - used only for Software Defined Radio devices */
+#define V4L2_SDR_FMT_CU8 v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
+#define V4L2_SDR_FMT_CU16LE v4l2_fourcc('C', 'U', '1', '6') /* IQ u16le */
+#define V4L2_SDR_FMT_CS8 v4l2_fourcc('C', 'S', '0', '8') /* complex s8 */
+#define V4L2_SDR_FMT_CS14LE v4l2_fourcc('C', 'S', '1', '4') /* complex s14le */
+#define V4L2_SDR_FMT_RU12LE v4l2_fourcc('R', 'U', '1', '2') /* real u12le */
+
+/* Flags */
+#define V4L2_PIX_FMT_FLAG_PREMUL_ALPHA 0x00000001
+
/*
* F O R M A T E N U M E R A T I O N
*/
/* FIXME: in theory we should pass something like PCI device + memory
* region + offset instead of some physical address */
void *base;
- struct v4l2_pix_format fmt;
+ struct {
+ __u32 width;
+ __u32 height;
+ __u32 pixelformat;
+ __u32 field; /* enum v4l2_field */
+ __u32 bytesperline; /* for padding, zero if unused */
+ __u32 sizeimage;
+ __u32 colorspace; /* enum v4l2_colorspace */
+ __u32 priv; /* reserved field, set to 0 */
+ } fmt;
};
/* Flags for the 'capability' field. Read only */
#define V4L2_FBUF_CAP_EXTERNOVERLAY 0x0001
exactly the same number of half-lines. Whether half-lines can be detected
or used depends on the hardware. */
#define V4L2_DV_FL_HALF_LINE (1 << 3)
-
+/* If set, then this is a Consumer Electronics (CE) video format. Such formats
+ * differ from other formats (commonly called IT formats) in that if RGB
+ * encoding is used then by default the RGB values use limited range (i.e.
+ * use the range 16-235) as opposed to 0-255. All formats defined in CEA-861
+ * except for the 640x480 format are CE formats. */
+#define V4L2_DV_FL_IS_CE_VIDEO (1 << 4)
+
+/* A few useful defines to calculate the total blanking and frame sizes */
+#define V4L2_DV_BT_BLANKING_WIDTH(bt) \
+ ((bt)->hfrontporch + (bt)->hsync + (bt)->hbackporch)
+#define V4L2_DV_BT_FRAME_WIDTH(bt) \
+ ((bt)->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
+#define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
+ ((bt)->vfrontporch + (bt)->vsync + (bt)->vbackporch + \
+ (bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch)
+#define V4L2_DV_BT_FRAME_HEIGHT(bt) \
+ ((bt)->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))
/** struct v4l2_dv_timings - DV timings
* @type: the type of the timings
/** struct v4l2_enum_dv_timings - DV timings enumeration
* @index: enumeration index
+ * @pad: the pad number for which to enumerate timings (used with
+ * v4l-subdev nodes only)
* @reserved: must be zeroed
* @timings: the timings for the given index
*/
struct v4l2_enum_dv_timings {
__u32 index;
- __u32 reserved[3];
+ __u32 pad;
+ __u32 reserved[2];
struct v4l2_dv_timings timings;
};
/** struct v4l2_dv_timings_cap - DV timings capabilities
* @type: the type of the timings (same as in struct v4l2_dv_timings)
+ * @pad: the pad number for which to query capabilities (used with
+ * v4l-subdev nodes only)
* @bt: the BT656/1120 timings capabilities
*/
struct v4l2_dv_timings_cap {
__u32 type;
- __u32 reserved[3];
+ __u32 pad;
+ __u32 reserved[2];
union {
struct v4l2_bt_timings_cap bt;
__u32 raw_data[32];
#define V4L2_VBI_UNSYNC (1 << 0)
#define V4L2_VBI_INTERLACED (1 << 1)
+/* ITU-R start lines for each field */
+#define V4L2_VBI_ITU_525_F1_START (1)
+#define V4L2_VBI_ITU_525_F2_START (264)
+#define V4L2_VBI_ITU_625_F1_START (1)
+#define V4L2_VBI_ITU_625_F2_START (314)
+
/* Sliced VBI
*
* This implements is a proposal V4L2 API to allow SLICED VBI
* @colorspace: enum v4l2_colorspace; supplemental to pixelformat
* @plane_fmt: per-plane information
* @num_planes: number of planes for this format
+ * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
+ * @quantization: enum v4l2_quantization, colorspace quantization
+ * @xfer_func: enum v4l2_xfer_func, colorspace transfer function
*/
struct v4l2_pix_format_mplane {
__u32 width;
struct v4l2_plane_pix_format plane_fmt[VIDEO_MAX_PLANES];
__u8 num_planes;
- __u8 reserved[11];
+ __u8 flags;
+ __u8 ycbcr_enc;
+ __u8 quantization;
+ __u8 xfer_func;
+ __u8 reserved[7];
} __attribute__ ((packed));
/**
#define V4L2_EVENT_EOS 2
#define V4L2_EVENT_CTRL 3
#define V4L2_EVENT_FRAME_SYNC 4
+#define V4L2_EVENT_SOURCE_CHANGE 5
#define V4L2_EVENT_PRIVATE_START 0x08000000
/* Payload for V4L2_EVENT_VSYNC */
__u32 frame_sequence;
};
+#define V4L2_EVENT_SRC_CH_RESOLUTION (1 << 0)
+
+struct v4l2_event_src_change {
+ __u32 changes;
+};
+
struct v4l2_event {
__u32 type;
union {
struct v4l2_event_vsync vsync;
struct v4l2_event_ctrl ctrl;
struct v4l2_event_frame_sync frame_sync;
+ struct v4l2_event_src_change src_change;
__u8 data[64];
} u;
__u32 pending;
#define VIDIOC_QUERYMENU _IOWR('V', 37, struct v4l2_querymenu)
#define VIDIOC_G_INPUT _IOR('V', 38, int)
#define VIDIOC_S_INPUT _IOWR('V', 39, int)
+#define VIDIOC_G_EDID _IOWR('V', 40, struct v4l2_edid)
+#define VIDIOC_S_EDID _IOWR('V', 41, struct v4l2_edid)
#define VIDIOC_G_OUTPUT _IOR('V', 46, int)
#define VIDIOC_S_OUTPUT _IOWR('V', 47, int)
#define VIDIOC_ENUMOUTPUT _IOWR('V', 48, struct v4l2_output)
projects / sojka / nv-tegra / linux-3.10.git / commitdiff