---

yaml --- r: 306361 b: refs/heads/master c: 7f84ad8 h: refs/heads/master i: 306359: 3da1e74 v: v3
git-mirror · May 14, 2012 · 3f20b25 · 3f20b25
1 parent be0e5f9
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Showing 5 changed files with 68 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 82b3056c5a77b687097bd7f36a598a0b37af24a2
+refs/heads/master: 7f84ad8bdb63a8bfcbb83755e487e06be5db54cf
diff --git a/trunk/Documentation/DocBook/media/v4l/biblio.xml b/trunk/Documentation/DocBook/media/v4l/biblio.xml
@@ -197,4 +197,15 @@ in the frequency range from 87,5 to 108,0 MHz</title>
       <title>NTSC-4: United States RBDS Standard</title>
     </biblioentry>
 
+    <biblioentry id="iso12232">
+      <abbrev>ISO&nbsp;12232:2006</abbrev>
+      <authorgroup>
+	<corpauthor>International Organization for Standardization
+(<ulink url="http://www.iso.org">http://www.iso.org</ulink>)</corpauthor>
+      </authorgroup>
+      <title>Photography &mdash; Digital still cameras &mdash; Determination
+      of exposure index, ISO speed ratings, standard output sensitivity, and
+      recommended exposure index</title>
+    </biblioentry>
+
   </bibliography>
diff --git a/trunk/Documentation/DocBook/media/v4l/controls.xml b/trunk/Documentation/DocBook/media/v4l/controls.xml
@@ -3117,6 +3117,44 @@ control in the future, if more options are required.</para></footnote></entry>
 	  </row>
 	  <row><entry></entry></row>
 
+	  <row>
+	    <entry spanname="id"><constant>V4L2_CID_ISO_SENSITIVITY</constant>&nbsp;</entry>
+	    <entry>integer menu</entry>
+	  </row><row><entry spanname="descr">Determines ISO equivalent of an
+image sensor indicating the sensor's sensitivity to light. The numbers are
+expressed in arithmetic scale, as per <xref linkend="iso12232" /> standard,
+where doubling the sensor sensitivity is represented by doubling the numerical
+ISO value. Applications should interpret the values as standard ISO values
+multiplied by 1000, e.g. control value 800 stands for ISO 0.8. Drivers will
+usually support only a subset of standard ISO values. The effect of setting
+this control while the <constant>V4L2_CID_ISO_SENSITIVITY_AUTO</constant>
+control is set to a value other than <constant>V4L2_CID_ISO_SENSITIVITY_MANUAL
+</constant> is undefined, drivers should ignore such requests.</entry>
+	  </row>
+	  <row><entry></entry></row>
+
+	  <row id="v4l2-iso-sensitivity-auto-type">
+	    <entry spanname="id"><constant>V4L2_CID_ISO_SENSITIVITY_AUTO</constant>&nbsp;</entry>
+	    <entry>enum&nbsp;v4l2_iso_sensitivity_type</entry>
+	  </row><row><entry spanname="descr">Enables or disables automatic ISO
+sensitivity adjustments.</entry>
+	  </row>
+	  <row>
+	    <entrytbl spanname="descr" cols="2">
+	      <tbody valign="top">
+		<row>
+		  <entry><constant>V4L2_CID_ISO_SENSITIVITY_MANUAL</constant>&nbsp;</entry>
+		  <entry>Manual ISO sensitivity.</entry>
+		</row>
+		<row>
+		  <entry><constant>V4L2_CID_ISO_SENSITIVITY_AUTO</constant>&nbsp;</entry>
+		  <entry>Automatic ISO sensitivity adjustments.</entry>
+		</row>
+	      </tbody>
+	    </entrytbl>
+	  </row>
+	  <row><entry></entry></row>
+
 	</tbody>
       </tgroup>
     </table>

diff --git a/trunk/drivers/media/video/v4l2-ctrls.c b/trunk/drivers/media/video/v4l2-ctrls.c
@@ -262,6 +262,11 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
 		"Shade",
 		NULL,
 	};
+	static const char * const camera_iso_sensitivity_auto[] = {
+		"Manual",
+		"Auto",
+		NULL
+	};
 	static const char * const tune_preemphasis[] = {
 		"No Preemphasis",
 		"50 Microseconds",
@@ -433,6 +438,8 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
 		return colorfx;
 	case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
 		return auto_n_preset_white_balance;
+	case V4L2_CID_ISO_SENSITIVITY_AUTO:
+		return camera_iso_sensitivity_auto;
 	case V4L2_CID_TUNE_PREEMPHASIS:
 		return tune_preemphasis;
 	case V4L2_CID_FLASH_LED_MODE:
@@ -623,6 +630,8 @@ const char *v4l2_ctrl_get_name(u32 id)
 	case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE: return "White Balance, Auto & Preset";
 	case V4L2_CID_WIDE_DYNAMIC_RANGE:	return "Wide Dynamic Range";
 	case V4L2_CID_IMAGE_STABILIZATION:	return "Image Stabilization";
+	case V4L2_CID_ISO_SENSITIVITY:		return "ISO Sensitivity";
+	case V4L2_CID_ISO_SENSITIVITY_AUTO:	return "ISO Sensitivity, Auto";
 
 	/* FM Radio Modulator control */
 	/* Keep the order of the 'case's the same as in videodev2.h! */
@@ -773,6 +782,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
 	case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
 	case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
 	case V4L2_CID_JPEG_CHROMA_SUBSAMPLING:
+	case V4L2_CID_ISO_SENSITIVITY_AUTO:
 		*type = V4L2_CTRL_TYPE_MENU;
 		break;
 	case V4L2_CID_LINK_FREQ:
@@ -782,6 +792,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
 	case V4L2_CID_RDS_TX_RADIO_TEXT:
 		*type = V4L2_CTRL_TYPE_STRING;
 		break;
+	case V4L2_CID_ISO_SENSITIVITY:
 	case V4L2_CID_AUTO_EXPOSURE_BIAS:
 		*type = V4L2_CTRL_TYPE_INTEGER_MENU;
 		break;

diff --git a/trunk/include/linux/videodev2.h b/trunk/include/linux/videodev2.h
@@ -1726,6 +1726,13 @@ enum v4l2_auto_n_preset_white_balance {
 #define V4L2_CID_WIDE_DYNAMIC_RANGE		(V4L2_CID_CAMERA_CLASS_BASE+21)
 #define V4L2_CID_IMAGE_STABILIZATION		(V4L2_CID_CAMERA_CLASS_BASE+22)
 
+#define V4L2_CID_ISO_SENSITIVITY		(V4L2_CID_CAMERA_CLASS_BASE+23)
+#define V4L2_CID_ISO_SENSITIVITY_AUTO		(V4L2_CID_CAMERA_CLASS_BASE+24)
+enum v4l2_iso_sensitivity_auto_type {
+	V4L2_ISO_SENSITIVITY_MANUAL		= 0,
+	V4L2_ISO_SENSITIVITY_AUTO		= 1,
+};
+
 /* FM Modulator class control IDs */
 #define V4L2_CID_FM_TX_CLASS_BASE		(V4L2_CTRL_CLASS_FM_TX | 0x900)
 #define V4L2_CID_FM_TX_CLASS			(V4L2_CTRL_CLASS_FM_TX | 1)