Add MT9M021 Driver patches to Kernel

kernel/nvidia/drivers/media/platform/tegra/camera/camera_common.c

@@ -989,7 +989,7 @@ int camera_common_initialize(struct camera_common_data *s_data,
 		const char *dev_name)
 {
 	int err = 0;
-	char debugfs_name[10];
+	char debugfs_name[50];
 
 	if (s_data->dev == NULL)
 		return -EINVAL;

kernel/nvidia/drivers/media/platform/tegra/camera/tegracam_ctrls.c

@@ -33,6 +33,18 @@
 
 #define TEGRACAM_DEF_CTRLS 1
 
+/* MT9M021 Controls Information */
+#define MT9M021_DEFAULT_ANALOG_GAIN         (0x0)
+#define MT9M021_MAX_ANALOG_GAIN             (0x3)
+
+static const char * const mt9m021_test_pattern_menu[] = {
+    "0:Disabled",
+    "1:Solid color test pattern",
+    "2:color bar test pattern",
+    "3:Fade to gray color bar test pattern",
+    "256:Walking 1s test pattern (12 bit)"
+};
+
 static int tegracam_s_ctrl(struct v4l2_ctrl *ctrl);
 static const struct v4l2_ctrl_ops tegracam_ctrl_ops = {
 	.s_ctrl = tegracam_s_ctrl,
@@ -163,6 +175,109 @@ static struct v4l2_ctrl_config ctrl_cfg_list[] = {
 		.max = CTRL_MAX_STR_SIZE,
 		.step = 2,
 	},
+
+	/* Controls extension for MT9M021 */
+	{
+		.ops = &tegracam_ctrl_ops,
+		.id = V4L2_CID_ANALOGUE_GAIN,
+		.name = "Analog Gain",
+		.type = V4L2_CTRL_TYPE_INTEGER64,
+		.flags = V4L2_CTRL_FLAG_SLIDER,
+		.min = CTRL_U64_MIN,
+		.max = MT9M021_MAX_ANALOG_GAIN,
+		.def = MT9M021_DEFAULT_ANALOG_GAIN,
+		.step = 1,
+	},
+	{
+		.ops = &tegracam_ctrl_ops,
+		.id = V4L2_CID_GAIN_RED,
+		.name = "Red Gain",
+		.type = V4L2_CTRL_TYPE_INTEGER64,
+		.flags = V4L2_CTRL_FLAG_SLIDER,
+		.min = CTRL_U64_MIN,
+		.max = CTRL_U64_MAX,
+		.def = CTRL_U64_MIN,
+		.step = 1,
+	},
+	{
+		.ops = &tegracam_ctrl_ops,
+		.id = V4L2_CID_GAIN_GREENR,
+		.name = "GreenR Gain",
+		.type = V4L2_CTRL_TYPE_INTEGER64,
+		.flags = V4L2_CTRL_FLAG_SLIDER,
+		.min = CTRL_U64_MIN,
+		.max = CTRL_U64_MAX,
+		.def = CTRL_U64_MIN,
+		.step = 1,
+	},
+	{
+		.ops = &tegracam_ctrl_ops,
+		.id = V4L2_CID_GAIN_GREENB,
+		.name = "GreenB Gain",
+		.type = V4L2_CTRL_TYPE_INTEGER64,
+		.flags = V4L2_CTRL_FLAG_SLIDER,
+		.min = CTRL_U64_MIN,
+		.max = CTRL_U64_MAX,
+		.def = CTRL_U64_MIN,
+		.step = 1,
+	},
+	{
+		.ops = &tegracam_ctrl_ops,
+		.id = V4L2_CID_GAIN_BLUE,
+		.name = "Blue Gain",
+		.type = V4L2_CTRL_TYPE_INTEGER64,
+		.flags = V4L2_CTRL_FLAG_SLIDER,
+		.min = CTRL_U64_MIN,
+		.max = CTRL_U64_MAX,
+		.def = CTRL_U64_MIN,
+		.step = 1,
+	},
+	{
+		.ops = &tegracam_ctrl_ops,
+		.id = V4L2_CID_TEST_PATTERN,
+		.type = V4L2_CTRL_TYPE_MENU,
+		.name = "Test Pattern",
+		.min = 0,
+		.max = ARRAY_SIZE(mt9m021_test_pattern_menu) - 1,
+		.step = 0,
+		.def = 0,
+		.flags = 0,
+		.menu_skip_mask = 0,
+		.qmenu = mt9m021_test_pattern_menu,
+	},
+	{
+		.ops = &tegracam_ctrl_ops,
+		.id = V4L2_CID_FLASH_LED_MODE,
+		.name = "Flash",
+		.type = V4L2_CTRL_TYPE_INTEGER,
+		.flags = 0,
+		.min = V4L2_FLASH_LED_MODE_NONE,
+		.max = V4L2_FLASH_LED_MODE_FLASH,
+		.def = V4L2_FLASH_LED_MODE_FLASH,
+		.step = 1,
+	},
+	{
+		.ops = &tegracam_ctrl_ops,
+		.id = V4L2_CID_HFLIP,
+		.name = "Horizontal Flip",
+		.type = V4L2_CTRL_TYPE_INTEGER_MENU,
+		.min = 0,
+		.max = ARRAY_SIZE(switch_ctrl_qmenu) - 1,
+		.menu_skip_mask = 0,
+		.def = 0,
+		.qmenu_int = switch_ctrl_qmenu,
+	},
+	{
+		.ops = &tegracam_ctrl_ops,
+		.id = V4L2_CID_VFLIP,
+		.name = "Vertical Flip",
+		.type = V4L2_CTRL_TYPE_INTEGER_MENU,
+		.min = 0,
+		.max = ARRAY_SIZE(switch_ctrl_qmenu) - 1,
+		.menu_skip_mask = 0,
+		.def = 0,
+		.qmenu_int = switch_ctrl_qmenu,
+	},
 };
 
 static int tegracam_get_ctrl_index(u32 cid)
@@ -266,6 +381,26 @@ static int tegracam_set_ctrls(struct tegracam_ctrl_handler *handler,
 	case TEGRA_CAMERA_CID_GROUP_HOLD:
 		err = ops->set_group_hold(tc_dev, ctrl->val);
 		break;
+	case V4L2_CID_ANALOGUE_GAIN:
+		err = ops->set_analog_gain(tc_dev, *ctrl->p_new.p_s64);
+		break;
+	case V4L2_CID_GAIN_RED:
+	case V4L2_CID_GAIN_GREENR:
+	case V4L2_CID_GAIN_GREENB:
+	case V4L2_CID_GAIN_BLUE:
+		err = ops->set_digital_gain(tc_dev, *ctrl->p_new.p_s64,
+					    ctrl->id);
+		break;
+	case V4L2_CID_TEST_PATTERN:
+		err = ops->set_test_pattern(tc_dev, ctrl->val);
+		break;
+	case V4L2_CID_FLASH_LED_MODE:
+		err = ops->set_flash(tc_dev, ctrl->val);
+		break;
+	case V4L2_CID_HFLIP:
+	case V4L2_CID_VFLIP:
+		err = ops->set_flip(tc_dev, ctrl->val, ctrl->id);
+		break;
 	default:
 		pr_err("%s: unknown ctrl id.\n", __func__);
 		return -EINVAL;
@@ -459,6 +594,10 @@ int tegracam_init_ctrl_ranges_by_mode(
 
 		switch (ctrl->id) {
 		case TEGRA_CAMERA_CID_GAIN:
+		case V4L2_CID_GAIN_RED:
+		case V4L2_CID_GAIN_GREENR:
+		case V4L2_CID_GAIN_GREENB:
+		case V4L2_CID_GAIN_BLUE:
 			err = v4l2_ctrl_modify_range(ctrl,
 				ctrlprops->min_gain_val,
 				ctrlprops->max_gain_val,

kernel/nvidia/include/media/camera_common.h

@@ -205,6 +205,12 @@ struct tegracam_ctrl_ops {
 			struct sensor_blob *blob, s64 val);
 	int (*set_group_hold_ex)(struct tegracam_device *tc_dev,
 			struct sensor_blob *blob, bool val);
+	int (*set_analog_gain)(struct tegracam_device *tc_dev, s64 val);
+	int (*set_digital_gain)(struct tegracam_device *tc_dev, s64 val,
+				int id);
+	int (*set_test_pattern)(struct tegracam_device *tc_dev, s32 val);
+	int (*set_flash)(struct tegracam_device *tc_dev, s32 val);
+	int (*set_flip)(struct tegracam_device *tc_dev, s32 val, int id);
 };
 
 struct tegracam_ctrl_handler {

kernel/nvidia/include/media/tegra-v4l2-camera.h

@@ -55,6 +55,12 @@
 #define TEGRA_CAMERA_CID_LOW_LATENCY         (TEGRA_CAMERA_CID_BASE+109)
 #define TEGRA_CAMERA_CID_VI_PREFERRED_STRIDE (TEGRA_CAMERA_CID_BASE+110)
 
+/* Custom Controls */
+#define V4L2_CID_GAIN_RED                   V4L2_CID_USER_BASE
+#define V4L2_CID_GAIN_GREENR                V4L2_CID_USER_BASE + 1
+#define V4L2_CID_GAIN_GREENB                V4L2_CID_USER_BASE + 2
+#define V4L2_CID_GAIN_BLUE                  V4L2_CID_USER_BASE + 3
+
 /**
  * This is temporary with the current v4l2 infrastructure
  * currently discussing with upstream maintainers our proposals and