forked from ~ljy/RK356X_SDK_RELEASE
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hc
2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf 
 kernel/drivers/media/i2c/ov7740.c
....@@ -20,7 +20,7 @@
2020 #define REG_BGAIN	0x01	/* blue gain */
2121 #define REG_RGAIN	0x02	/* red gain */
2222 #define REG_GGAIN	0x03	/* green gain */
23
-#define REG_REG04	0x04	/* analog setting, dont change*/
23
+#define REG_REG04	0x04	/* analog setting, don't change*/
2424 #define REG_BAVG	0x05	/* b channel average */
2525 #define REG_GAVG	0x06	/* g channel average */
2626 #define REG_RAVG	0x07	/* r channel average */
....@@ -322,7 +322,7 @@
322322 	return 0;
323323 }
324324 
325
-static struct v4l2_subdev_core_ops ov7740_subdev_core_ops = {
325
+static const struct v4l2_subdev_core_ops ov7740_subdev_core_ops = {
326326 	.log_status = v4l2_ctrl_subdev_log_status,
327327 #ifdef CONFIG_VIDEO_ADV_DEBUG
328328 	.g_register = ov7740_get_register,
....@@ -448,6 +448,27 @@
448448 	return 0;
449449 }
450450 
451
+static int ov7740_get_exp(struct ov7740 *ov7740, struct v4l2_ctrl *ctrl)
452
+{
453
+	struct regmap *regmap = ov7740->regmap;
454
+	unsigned int value0, value1;
455
+	int ret;
456
+
457
+	if (ctrl->val == V4L2_EXPOSURE_MANUAL)
458
+		return 0;
459
+
460
+	ret = regmap_read(regmap, REG_AEC, &value0);
461
+	if (ret)
462
+		return ret;
463
+	ret = regmap_read(regmap, REG_HAEC, &value1);
464
+	if (ret)
465
+		return ret;
466
+
467
+	ov7740->exposure->val = (value1 << 8) | (value0 & 0xff);
468
+
469
+	return 0;
470
+}
471
+
451472 static int ov7740_set_exp(struct regmap *regmap, int value)
452473 {
453474 	int ret;
....@@ -494,6 +515,9 @@
494515 	case V4L2_CID_AUTOGAIN:
495516 		ret = ov7740_get_gain(ov7740, ctrl);
496517 		break;
518
+	case V4L2_CID_EXPOSURE_AUTO:
519
+		ret = ov7740_get_exp(ov7740, ctrl);
520
+		break;
497521 	default:
498522 		ret = -EINVAL;
499523 		break;
....@@ -508,7 +532,7 @@
508532 	struct i2c_client *client = v4l2_get_subdevdata(&ov7740->subdev);
509533 	struct regmap *regmap = ov7740->regmap;
510534 	int ret;
511
-	u8 val = 0;
535
+	u8 val;
512536 
513537 	if (!pm_runtime_get_if_in_use(&client->dev))
514538 		return 0;
....@@ -527,6 +551,7 @@
527551 		ret = ov7740_set_contrast(regmap, ctrl->val);
528552 		break;
529553 	case V4L2_CID_VFLIP:
554
+		val = ctrl->val ? REG0C_IMG_FLIP : 0x00;
530555 		ret = regmap_update_bits(regmap, REG_REG0C,
531556 					 REG0C_IMG_FLIP, val);
532557 		break;
....@@ -537,16 +562,16 @@
537562 		break;
538563 	case V4L2_CID_AUTOGAIN:
539564 		if (!ctrl->val)
540
-			return ov7740_set_gain(regmap, ov7740->gain->val);
541
-
542
-		ret = ov7740_set_autogain(regmap, ctrl->val);
565
+			ret = ov7740_set_gain(regmap, ov7740->gain->val);
566
+		else
567
+			ret = ov7740_set_autogain(regmap, ctrl->val);
543568 		break;
544569 
545570 	case V4L2_CID_EXPOSURE_AUTO:
546571 		if (ctrl->val == V4L2_EXPOSURE_MANUAL)
547
-			return ov7740_set_exp(regmap, ov7740->exposure->val);
548
-
549
-		ret = ov7740_set_autoexp(regmap, ctrl->val);
572
+			ret = ov7740_set_exp(regmap, ov7740->exposure->val);
573
+		else
574
+			ret = ov7740_set_autoexp(regmap, ctrl->val);
550575 		break;
551576 	default:
552577 		ret = -EINVAL;
....@@ -648,7 +673,7 @@
648673 	return 0;
649674 }
650675 
651
-static struct v4l2_subdev_video_ops ov7740_subdev_video_ops = {
676
+static const struct v4l2_subdev_video_ops ov7740_subdev_video_ops = {
652677 	.s_stream = ov7740_set_stream,
653678 	.s_frame_interval = ov7740_s_frame_interval,
654679 	.g_frame_interval = ov7740_g_frame_interval,
....@@ -802,13 +827,9 @@
802827 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
803828 		mbus_fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
804829 		*mbus_fmt = format->format;
805
-
830
+#endif
806831 		mutex_unlock(&ov7740->mutex);
807832 		return 0;
808
-#else
809
-		ret = -ENOTTY;
810
-		goto error;
811
-#endif
812833 	}
813834 
814835 	ret = ov7740_try_fmt_internal(sd, &format->format, &ovfmt, &fsize);
....@@ -843,7 +864,7 @@
843864 		format->format = *mbus_fmt;
844865 		ret = 0;
845866 #else
846
-		ret = -ENOTTY;
867
+		ret = -EINVAL;
847868 #endif
848869 	} else {
849870 		format->format = ov7740->format;
....@@ -987,16 +1008,12 @@
9871008 
9881009 	ov7740->gain = v4l2_ctrl_new_std(ctrl_hdlr, &ov7740_ctrl_ops,
9891010 				       V4L2_CID_GAIN, 0, 1023, 1, 500);
990
-	if (ov7740->gain)
991
-		ov7740->gain->flags |= V4L2_CTRL_FLAG_VOLATILE;
9921011 
9931012 	ov7740->auto_gain = v4l2_ctrl_new_std(ctrl_hdlr, &ov7740_ctrl_ops,
9941013 					    V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
9951014 
9961015 	ov7740->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov7740_ctrl_ops,
9971016 					   V4L2_CID_EXPOSURE, 0, 65535, 1, 500);
998
-	if (ov7740->exposure)
999
-		ov7740->exposure->flags |= V4L2_CTRL_FLAG_VOLATILE;
10001017 
10011018 	ov7740->auto_exposure = v4l2_ctrl_new_std_menu(ctrl_hdlr,
10021019 					&ov7740_ctrl_ops,
....@@ -1007,8 +1024,7 @@
10071024 	v4l2_ctrl_auto_cluster(3, &ov7740->auto_wb, 0, false);
10081025 	v4l2_ctrl_auto_cluster(2, &ov7740->auto_gain, 0, true);
10091026 	v4l2_ctrl_auto_cluster(2, &ov7740->auto_exposure,
1010
-			       V4L2_EXPOSURE_MANUAL, false);
1011
-	v4l2_ctrl_cluster(2, &ov7740->hflip);
1027
+			       V4L2_EXPOSURE_MANUAL, true);
10121028 
10131029 	if (ctrl_hdlr->error) {
10141030 		ret = ctrl_hdlr->error;
....@@ -1046,19 +1062,11 @@
10461062 	.max_register	= OV7740_MAX_REGISTER,
10471063 };
10481064 
1049
-static int ov7740_probe(struct i2c_client *client,
1050
-			const struct i2c_device_id *id)
1065
+static int ov7740_probe(struct i2c_client *client)
10511066 {
10521067 	struct ov7740 *ov7740;
10531068 	struct v4l2_subdev *sd;
10541069 	int ret;
1055
-
1056
-	if (!i2c_check_functionality(client->adapter,
1057
-				     I2C_FUNC_SMBUS_BYTE_DATA)) {
1058
-		dev_err(&client->dev,
1059
-			"OV7740: I2C-Adapter doesn't support SMBUS\n");
1060
-		return -EIO;
1061
-	}
10621070 
10631071 	ov7740 = devm_kzalloc(&client->dev, sizeof(*ov7740), GFP_KERNEL);
10641072 	if (!ov7740)
....@@ -1076,7 +1084,7 @@
10761084 	if (ret)
10771085 		return ret;
10781086 
1079
-	ov7740->regmap = devm_regmap_init_i2c(client, &ov7740_regmap_config);
1087
+	ov7740->regmap = devm_regmap_init_sccb(client, &ov7740_regmap_config);
10801088 	if (IS_ERR(ov7740->regmap)) {
10811089 		ret = PTR_ERR(ov7740->regmap);
10821090 		dev_err(&client->dev, "Failed to allocate register map: %d\n",
....@@ -1085,7 +1093,6 @@
10851093 	}
10861094 
10871095 	sd = &ov7740->subdev;
1088
-	client->flags |= I2C_CLIENT_SCCB;
10891096 	v4l2_i2c_subdev_init(sd, client, &ov7740_subdev_ops);
10901097 
10911098 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
....@@ -1209,7 +1216,7 @@
12091216 		.pm = &ov7740_pm_ops,
12101217 		.of_match_table = of_match_ptr(ov7740_of_match),
12111218 	},
1212
-	.probe    = ov7740_probe,
1219
+	.probe_new = ov7740_probe,
12131220 	.remove   = ov7740_remove,
12141221 	.id_table = ov7740_id,
12151222 };