openwrtv4/target/linux/brcm2708/patches-3.10/0134-V4L2-Fix-ISO-controls.patch

From e4dc7a4bf88ca8e70f604b5d26335911073e5238 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dsteve@broadcom.com>
Date: Mon, 9 Dec 2013 15:30:48 +0000
Subject: [PATCH 134/196] V4L2: Fix ISO controls.

Driver was passing the index to the GPU, and not the desired
ISO value.

Signed-off-by: Dave Stevenson <dsteve@broadcom.com>
---
 drivers/media/platform/bcm2835/controls.c | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/bcm2835/controls.c b/drivers/media/platform/bcm2835/controls.c
index c2e4c64..92863f7 100644
--- a/drivers/media/platform/bcm2835/controls.c
+++ b/drivers/media/platform/bcm2835/controls.c
@@ -178,6 +178,25 @@ static int ctrl_set_value(struct bm2835_mmal_dev *dev,
 					     &u32_value, sizeof(u32_value));
 }
 
+static int ctrl_set_value_menu(struct bm2835_mmal_dev *dev,
+		      struct v4l2_ctrl *ctrl,
+		      const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
+{
+	u32 u32_value;
+	struct vchiq_mmal_port *control;
+
+	if (ctrl->val > mmal_ctrl->max || ctrl->val < mmal_ctrl->min)
+		return 1;
+
+	control = &dev->component[MMAL_COMPONENT_CAMERA]->control;
+
+	u32_value = mmal_ctrl->imenu[ctrl->val];
+
+	return vchiq_mmal_port_parameter_set(dev->instance, control,
+					     mmal_ctrl->mmal_id,
+					     &u32_value, sizeof(u32_value));
+}
+
 static int ctrl_set_value_ev(struct bm2835_mmal_dev *dev,
 		      struct v4l2_ctrl *ctrl,
 		      const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
@@ -601,7 +620,7 @@ static const struct bm2835_mmal_v4l2_ctrl v4l2_ctrls[V4L2_CTRL_COUNT] = {
 	{
 		V4L2_CID_ISO_SENSITIVITY, MMAL_CONTROL_TYPE_INT_MENU,
 		0, ARRAY_SIZE(iso_qmenu) - 1, 0, 1, iso_qmenu,
-		MMAL_PARAMETER_ISO, &ctrl_set_value
+		MMAL_PARAMETER_ISO, &ctrl_set_value_menu
 	},
 	{
 		V4L2_CID_IMAGE_STABILIZATION, MMAL_CONTROL_TYPE_STD,
-- 
1.9.1