V4L/DVB (12548): v4l2: video device: Add V4L2_CTRL_CLASS_FM_TX controls

This patch adds a new class of extended controls. This class
is intended to support FM Radio Modulators properties such as:
rds, audio limiters, audio compression, pilot tone generation,
tuning power levels and preemphasis properties.

Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 9ab4cbe..5758066 100644 (file)
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -817,6 +817,7 @@ struct v4l2_ext_controls {
 #define V4L2_CTRL_CLASS_USER 0x00980000        /* Old-style 'user' controls */
 #define V4L2_CTRL_CLASS_MPEG 0x00990000        /* MPEG-compression controls */
 #define V4L2_CTRL_CLASS_CAMERA 0x009a0000      /* Camera class controls */
+#define V4L2_CTRL_CLASS_FM_TX 0x009b0000       /* FM Modulator control class */
 
 #define V4L2_CTRL_ID_MASK                (0x0fffffff)
 #define V4L2_CTRL_ID2CLASS(id)    ((id) & 0x0fff0000UL)
@@ -1156,6 +1157,39 @@ enum  v4l2_exposure_auto_type {
 
 #define V4L2_CID_PRIVACY                       (V4L2_CID_CAMERA_CLASS_BASE+16)
 
+/* 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)
+
+#define V4L2_CID_RDS_TX_DEVIATION              (V4L2_CID_FM_TX_CLASS_BASE + 1)
+#define V4L2_CID_RDS_TX_PI                     (V4L2_CID_FM_TX_CLASS_BASE + 2)
+#define V4L2_CID_RDS_TX_PTY                    (V4L2_CID_FM_TX_CLASS_BASE + 3)
+#define V4L2_CID_RDS_TX_PS_NAME                        (V4L2_CID_FM_TX_CLASS_BASE + 5)
+#define V4L2_CID_RDS_TX_RADIO_TEXT             (V4L2_CID_FM_TX_CLASS_BASE + 6)
+
+#define V4L2_CID_AUDIO_LIMITER_ENABLED         (V4L2_CID_FM_TX_CLASS_BASE + 64)
+#define V4L2_CID_AUDIO_LIMITER_RELEASE_TIME    (V4L2_CID_FM_TX_CLASS_BASE + 65)
+#define V4L2_CID_AUDIO_LIMITER_DEVIATION       (V4L2_CID_FM_TX_CLASS_BASE + 66)
+
+#define V4L2_CID_AUDIO_COMPRESSION_ENABLED     (V4L2_CID_FM_TX_CLASS_BASE + 80)
+#define V4L2_CID_AUDIO_COMPRESSION_GAIN                (V4L2_CID_FM_TX_CLASS_BASE + 81)
+#define V4L2_CID_AUDIO_COMPRESSION_THRESHOLD   (V4L2_CID_FM_TX_CLASS_BASE + 82)
+#define V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME (V4L2_CID_FM_TX_CLASS_BASE + 83)
+#define V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME        (V4L2_CID_FM_TX_CLASS_BASE + 84)
+
+#define V4L2_CID_PILOT_TONE_ENABLED            (V4L2_CID_FM_TX_CLASS_BASE + 96)
+#define V4L2_CID_PILOT_TONE_DEVIATION          (V4L2_CID_FM_TX_CLASS_BASE + 97)
+#define V4L2_CID_PILOT_TONE_FREQUENCY          (V4L2_CID_FM_TX_CLASS_BASE + 98)
+
+#define V4L2_CID_TUNE_PREEMPHASIS              (V4L2_CID_FM_TX_CLASS_BASE + 112)
+enum v4l2_preemphasis {
+       V4L2_PREEMPHASIS_DISABLED       = 0,
+       V4L2_PREEMPHASIS_50_uS          = 1,
+       V4L2_PREEMPHASIS_75_uS          = 2,
+};
+#define V4L2_CID_TUNE_POWER_LEVEL              (V4L2_CID_FM_TX_CLASS_BASE + 113)
+#define V4L2_CID_TUNE_ANTENNA_CAPACITOR                (V4L2_CID_FM_TX_CLASS_BASE + 114)
+
 /*
  *     T U N I N G
  */