[media] v4l: Add a class and a set of controls for flash devices

Add a control class and a set of controls to support LED and Xenon flash
devices. An example of such a device is the adp1653.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 148d1a51ca22..8b1224c1c536 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -1027,6 +1027,7 @@ struct v4l2_ext_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_CLASS_FLASH 0x009c0000        /* Camera flash controls */
 
 #define V4L2_CTRL_ID_MASK         (0x0fffffff)
 #define V4L2_CTRL_ID2CLASS(id)    ((id) & 0x0fff0000UL)
@@ -1429,6 +1430,41 @@ enum v4l2_preemphasis {
 #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)
 
+/* Flash and privacy (indicator) light controls */
+#define V4L2_CID_FLASH_CLASS_BASE               (V4L2_CTRL_CLASS_FLASH | 0x900)
+#define V4L2_CID_FLASH_CLASS                    (V4L2_CTRL_CLASS_FLASH | 1)
+
+#define V4L2_CID_FLASH_LED_MODE                 (V4L2_CID_FLASH_CLASS_BASE + 1)
+enum v4l2_flash_led_mode {
+        V4L2_FLASH_LED_MODE_NONE,
+        V4L2_FLASH_LED_MODE_FLASH,
+        V4L2_FLASH_LED_MODE_TORCH,
+};
+
+#define V4L2_CID_FLASH_STROBE_SOURCE            (V4L2_CID_FLASH_CLASS_BASE + 2)
+enum v4l2_flash_strobe_source {
+        V4L2_FLASH_STROBE_SOURCE_SOFTWARE,
+        V4L2_FLASH_STROBE_SOURCE_EXTERNAL,
+};
+
+#define V4L2_CID_FLASH_STROBE                   (V4L2_CID_FLASH_CLASS_BASE + 3)
+#define V4L2_CID_FLASH_STROBE_STOP              (V4L2_CID_FLASH_CLASS_BASE + 4)
+#define V4L2_CID_FLASH_STROBE_STATUS            (V4L2_CID_FLASH_CLASS_BASE + 5)
+
+#define V4L2_CID_FLASH_TIMEOUT                  (V4L2_CID_FLASH_CLASS_BASE + 6)
+#define V4L2_CID_FLASH_INTENSITY                (V4L2_CID_FLASH_CLASS_BASE + 7)
+#define V4L2_CID_FLASH_TORCH_INTENSITY          (V4L2_CID_FLASH_CLASS_BASE + 8)
+#define V4L2_CID_FLASH_INDICATOR_INTENSITY      (V4L2_CID_FLASH_CLASS_BASE + 9)
+
+#define V4L2_CID_FLASH_FAULT                    (V4L2_CID_FLASH_CLASS_BASE + 10)
+#define V4L2_FLASH_FAULT_OVER_VOLTAGE           (1 << 0)
+#define V4L2_FLASH_FAULT_TIMEOUT                (1 << 1)
+#define V4L2_FLASH_FAULT_OVER_TEMPERATURE       (1 << 2)
+#define V4L2_FLASH_FAULT_SHORT_CIRCUIT          (1 << 3)
+
+#define V4L2_CID_FLASH_CHARGE                   (V4L2_CID_FLASH_CLASS_BASE + 11)
+#define V4L2_CID_FLASH_READY                    (V4L2_CID_FLASH_CLASS_BASE + 12)
+
 /*
  *      T U N I N G
  */