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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/media/i2c/sc401ai.c
....@@ -9,6 +9,7 @@
99  * V0.0X01.0X03 fix gain range.
1010  * V0.0X01.0X04 add enum_frame_interval function.
1111  * V0.0X01.0X05 add quick stream on/off
12
+ * V0.0X01.0X06 support thunder boot function.
1213  */
1314 
1415 #include <linux/clk.h>
....@@ -31,8 +32,9 @@
3132 #include <media/v4l2-ctrls.h>
3233 #include <media/v4l2-subdev.h>
3334 #include <linux/pinctrl/consumer.h>
35
+#include "../platform/rockchip/isp/rkisp_tb_helper.h"
3436 
35
-#define DRIVER_VERSION			KERNEL_VERSION(0, 0x01, 0x05)
37
+#define DRIVER_VERSION			KERNEL_VERSION(0, 0x01, 0x06)
3638 
3739 #ifndef V4L2_CID_DIGITAL_GAIN
3840 #define V4L2_CID_DIGITAL_GAIN		V4L2_CID_GAIN
....@@ -120,14 +122,6 @@
120122 
121123 #define SC401AI_NUM_SUPPLIES ARRAY_SIZE(sc401ai_supply_names)
122124 
123
-enum sc401ai_max_pad {
124
-	PAD0, /* link to isp */
125
-	PAD1, /* link to csi wr0 | hdr x2:L x3:M */
126
-	PAD2, /* link to csi wr1 | hdr      x3:L */
127
-	PAD3, /* link to csi wr2 | hdr x2:M x3:S */
128
-	PAD_MAX,
129
-};
130
-
131125 struct regval {
132126 	u16 addr;
133127 	u8 val;
....@@ -170,6 +164,7 @@
170164 	struct v4l2_ctrl	*pixel_rate;
171165 	struct v4l2_ctrl	*link_freq;
172166 	struct mutex		mutex;
167
+	struct v4l2_fract	cur_fps;
173168 	bool			streaming;
174169 	bool			power_on;
175170 	unsigned int		lane_num;
....@@ -180,6 +175,8 @@
180175 	const char		*module_name;
181176 	const char		*len_name;
182177 	u32			cur_vts;
178
+	bool			is_thunderboot;
179
+	bool			is_first_streamoff;
183180 	struct preisp_hdrae_exp_s init_hdrae_exp;
184181 };
185182 
....@@ -454,6 +451,8 @@
454451 	SC401AI_LINK_FREQ_630,
455452 };
456453 
454
+static int __sc401ai_power_on(struct sc401ai *sc401ai);
455
+
457456 /* Write registers up to 4 at a time */
458457 static int sc401ai_write_reg(struct i2c_client *client, u16 reg,
459458 			    u32 len, u32 val)
....@@ -631,6 +630,11 @@
631630 		DIG_Fine_gain_reg = abs(800 * gain / (Dcg_gainx100 * Coarse_gain *
632631 							DIG_gain) / ANA_Fine_gainx64);
633632 
633
+	if (sc401ai->is_thunderboot && rkisp_tb_get_state() == RKISP_TB_NG) {
634
+		sc401ai->is_thunderboot = false;
635
+		__sc401ai_power_on(sc401ai);
636
+	}
637
+
634638 	ret = sc401ai_write_reg(sc401ai->client,
635639 				SC401AI_REG_DIG_GAIN,
636640 				SC401AI_REG_VALUE_08BIT,
....@@ -709,6 +713,8 @@
709713 		__v4l2_ctrl_modify_range(sc401ai->vblank, vblank_def,
710714 					 SC401AI_VTS_MAX - mode->height,
711715 					 1, vblank_def);
716
+		sc401ai->cur_fps = mode->max_fps;
717
+		sc401ai->cur_vts = mode->vts_def;
712718 	}
713719 
714720 	mutex_unlock(&sc401ai->mutex);
....@@ -800,15 +806,17 @@
800806 	struct sc401ai *sc401ai = to_sc401ai(sd);
801807 	const struct sc401ai_mode *mode = sc401ai->cur_mode;
802808 
803
-	mutex_lock(&sc401ai->mutex);
804
-	fi->interval = mode->max_fps;
805
-	mutex_unlock(&sc401ai->mutex);
809
+	if (sc401ai->streaming)
810
+		fi->interval = sc401ai->cur_fps;
811
+	else
812
+		fi->interval = mode->max_fps;
806813 
807814 	return 0;
808815 }
809816 
810817 static int sc401ai_g_mbus_config(struct v4l2_subdev *sd,
811
-				 struct v4l2_mbus_config *config)
818
+				unsigned int pad_id,
819
+				struct v4l2_mbus_config *config)
812820 {
813821 	struct sc401ai *sc401ai = to_sc401ai(sd);
814822 	const struct sc401ai_mode *mode = sc401ai->cur_mode;
....@@ -823,7 +831,7 @@
823831 	if (mode->hdr_mode == HDR_X3)
824832 		val |= V4L2_MBUS_CSI2_CHANNEL_2;
825833 
826
-	config->type = V4L2_MBUS_CSI2;
834
+	config->type = V4L2_MBUS_CSI2_DPHY;
827835 	config->flags = val;
828836 
829837 	return 0;
....@@ -833,10 +841,10 @@
833841 				   struct rkmodule_inf *inf)
834842 {
835843 	memset(inf, 0, sizeof(*inf));
836
-	strlcpy(inf->base.sensor, SC401AI_NAME, sizeof(inf->base.sensor));
837
-	strlcpy(inf->base.module, sc401ai->module_name,
844
+	strscpy(inf->base.sensor, SC401AI_NAME, sizeof(inf->base.sensor));
845
+	strscpy(inf->base.module, sc401ai->module_name,
838846 		sizeof(inf->base.module));
839
-	strlcpy(inf->base.lens, sc401ai->len_name, sizeof(inf->base.lens));
847
+	strscpy(inf->base.lens, sc401ai->len_name, sizeof(inf->base.lens));
840848 }
841849 
842850 static long sc401ai_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
....@@ -992,23 +1000,31 @@
9921000 {
9931001 	int ret;
9941002 
995
-	ret = sc401ai_write_array(sc401ai->client, sc401ai->cur_mode->reg_list);
996
-	if (ret)
997
-		return ret;
1003
+	if (!sc401ai->is_thunderboot) {
1004
+		ret = sc401ai_write_array(sc401ai->client, sc401ai->cur_mode->reg_list);
1005
+		if (ret)
1006
+			return ret;
9981007 
999
-	/* In case these controls are set before streaming */
1000
-	ret = __v4l2_ctrl_handler_setup(&sc401ai->ctrl_handler);
1001
-	if (ret)
1002
-		return ret;
1008
+		/* In case these controls are set before streaming */
1009
+		ret = __v4l2_ctrl_handler_setup(&sc401ai->ctrl_handler);
1010
+		if (ret)
1011
+			return ret;
1012
+	}
10031013 
10041014 	return sc401ai_write_reg(sc401ai->client,
1005
-				 SC401AI_REG_CTRL_MODE,
1006
-				 SC401AI_REG_VALUE_08BIT,
1007
-				 SC401AI_MODE_STREAMING);
1015
+				SC401AI_REG_CTRL_MODE,
1016
+				SC401AI_REG_VALUE_08BIT,
1017
+				SC401AI_MODE_STREAMING);
1018
+
10081019 }
10091020 
10101021 static int __sc401ai_stop_stream(struct sc401ai *sc401ai)
10111022 {
1023
+	if (sc401ai->is_thunderboot) {
1024
+		sc401ai->is_first_streamoff = true;
1025
+		pm_runtime_put(&sc401ai->client->dev);
1026
+	}
1027
+
10121028 	return sc401ai_write_reg(sc401ai->client,
10131029 				 SC401AI_REG_CTRL_MODE,
10141030 				 SC401AI_REG_VALUE_08BIT,
....@@ -1027,6 +1043,10 @@
10271043 		goto unlock_and_return;
10281044 
10291045 	if (on) {
1046
+		if (sc401ai->is_thunderboot && rkisp_tb_get_state() == RKISP_TB_NG) {
1047
+			sc401ai->is_thunderboot = false;
1048
+			__sc401ai_power_on(sc401ai);
1049
+		}
10301050 		ret = pm_runtime_get_sync(&client->dev);
10311051 		if (ret < 0) {
10321052 			pm_runtime_put_noidle(&client->dev);
....@@ -1118,6 +1138,10 @@
11181138 		dev_err(dev, "Failed to enable xvclk\n");
11191139 		return ret;
11201140 	}
1141
+
1142
+	if (sc401ai->is_thunderboot)
1143
+		return 0;
1144
+
11211145 	if (!IS_ERR(sc401ai->reset_gpio))
11221146 		gpiod_set_value_cansleep(sc401ai->reset_gpio, 0);
11231147 
....@@ -1155,6 +1179,15 @@
11551179 {
11561180 	int ret;
11571181 	struct device *dev = &sc401ai->client->dev;
1182
+
1183
+	if (sc401ai->is_thunderboot) {
1184
+		if (sc401ai->is_first_streamoff) {
1185
+			sc401ai->is_thunderboot = false;
1186
+			sc401ai->is_first_streamoff = false;
1187
+		} else {
1188
+			return;
1189
+		}
1190
+	}
11581191 
11591192 	if (!IS_ERR(sc401ai->pwdn_gpio))
11601193 		gpiod_set_value_cansleep(sc401ai->pwdn_gpio, 0);
....@@ -1249,7 +1282,6 @@
12491282 static const struct v4l2_subdev_video_ops sc401ai_video_ops = {
12501283 	.s_stream = sc401ai_s_stream,
12511284 	.g_frame_interval = sc401ai_g_frame_interval,
1252
-	.g_mbus_config = sc401ai_g_mbus_config,
12531285 };
12541286 
12551287 static const struct v4l2_subdev_pad_ops sc401ai_pad_ops = {
....@@ -1258,6 +1290,7 @@
12581290 	.enum_frame_interval = sc401ai_enum_frame_interval,
12591291 	.get_fmt = sc401ai_get_fmt,
12601292 	.set_fmt = sc401ai_set_fmt,
1293
+	.get_mbus_config = sc401ai_g_mbus_config,
12611294 };
12621295 
12631296 static const struct v4l2_subdev_ops sc401ai_subdev_ops = {
....@@ -1265,6 +1298,14 @@
12651298 	.video	= &sc401ai_video_ops,
12661299 	.pad	= &sc401ai_pad_ops,
12671300 };
1301
+
1302
+static void sc401ai_modify_fps_info(struct sc401ai *sc401ai)
1303
+{
1304
+	const struct sc401ai_mode *mode = sc401ai->cur_mode;
1305
+
1306
+	sc401ai->cur_fps.denominator = mode->max_fps.denominator * mode->vts_def /
1307
+				       sc401ai->cur_vts;
1308
+}
12681309 
12691310 static int sc401ai_set_ctrl(struct v4l2_ctrl *ctrl)
12701311 {
....@@ -1324,7 +1365,9 @@
13241365 					 SC401AI_REG_VALUE_08BIT,
13251366 					 (ctrl->val + sc401ai->cur_mode->height)
13261367 					 & 0xff);
1327
-		sc401ai->cur_vts = ctrl->val + sc401ai->cur_mode->height;
1368
+		if (!ret)
1369
+			sc401ai->cur_vts = ctrl->val + sc401ai->cur_mode->height;
1370
+		sc401ai_modify_fps_info(sc401ai);
13281371 		break;
13291372 	case V4L2_CID_TEST_PATTERN:
13301373 		ret = sc401ai_enable_test_pattern(sc401ai, ctrl->val);
....@@ -1466,6 +1509,8 @@
14661509 	}
14671510 
14681511 	sc401ai->subdev.ctrl_handler = handler;
1512
+	sc401ai->cur_fps = mode->max_fps;
1513
+	sc401ai->cur_vts = mode->vts_def;
14691514 
14701515 	return 0;
14711516 
....@@ -1481,6 +1526,11 @@
14811526 	struct device *dev = &sc401ai->client->dev;
14821527 	u32 id = 0;
14831528 	int ret;
1529
+
1530
+	if (sc401ai->is_thunderboot) {
1531
+		dev_info(dev, "Enable thunderboot mode, skip sensor id check\n");
1532
+		return 0;
1533
+	}
14841534 
14851535 	ret = sc401ai_read_reg(client, SC401AI_REG_CHIP_ID,
14861536 			       SC401AI_REG_VALUE_16BIT, &id);
....@@ -1540,6 +1590,8 @@
15401590 		return -EINVAL;
15411591 	}
15421592 
1593
+	sc401ai->is_thunderboot = IS_ENABLED(CONFIG_VIDEO_ROCKCHIP_THUNDER_BOOT_ISP);
1594
+
15431595 	sc401ai->client = client;
15441596 	for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
15451597 		if (hdr_mode == supported_modes[i].hdr_mode) {
....@@ -1556,13 +1608,23 @@
15561608 		return -EINVAL;
15571609 	}
15581610 
1559
-	sc401ai->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
1560
-	if (IS_ERR(sc401ai->reset_gpio))
1561
-		dev_warn(dev, "Failed to get reset-gpios\n");
1611
+	if (sc401ai->is_thunderboot) {
1612
+		sc401ai->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_ASIS);
1613
+		if (IS_ERR(sc401ai->reset_gpio))
1614
+			dev_warn(dev, "Failed to get reset-gpios\n");
15621615 
1563
-	sc401ai->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
1564
-	if (IS_ERR(sc401ai->pwdn_gpio))
1565
-		dev_warn(dev, "Failed to get pwdn-gpios\n");
1616
+		sc401ai->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_ASIS);
1617
+		if (IS_ERR(sc401ai->pwdn_gpio))
1618
+			dev_warn(dev, "Failed to get pwdn-gpios\n");
1619
+	} else {
1620
+		sc401ai->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
1621
+		if (IS_ERR(sc401ai->reset_gpio))
1622
+			dev_warn(dev, "Failed to get reset-gpios\n");
1623
+
1624
+		sc401ai->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
1625
+		if (IS_ERR(sc401ai->pwdn_gpio))
1626
+			dev_warn(dev, "Failed to get pwdn-gpios\n");
1627
+	}
15661628 
15671629 	sc401ai->pinctrl = devm_pinctrl_get(dev);
15681630 	if (!IS_ERR(sc401ai->pinctrl)) {
....@@ -1637,7 +1699,10 @@
16371699 
16381700 	pm_runtime_set_active(dev);
16391701 	pm_runtime_enable(dev);
1640
-	pm_runtime_idle(dev);
1702
+	if (sc401ai->is_thunderboot)
1703
+		pm_runtime_get_sync(dev);
1704
+	else
1705
+		pm_runtime_idle(dev);
16411706 
16421707 	return 0;
16431708 
....@@ -1709,8 +1774,13 @@
17091774 	i2c_del_driver(&sc401ai_i2c_driver);
17101775 }
17111776 
1777
+#if defined(CONFIG_VIDEO_ROCKCHIP_THUNDER_BOOT_ISP) && !defined(CONFIG_INITCALL_ASYNC)
1778
+subsys_initcall(sensor_mod_init);
1779
+#else
17121780 device_initcall_sync(sensor_mod_init);
1781
+#endif
1782
+
17131783 module_exit(sensor_mod_exit);
17141784 
17151785 MODULE_DESCRIPTION("smartsens sc401ai sensor driver");
1716
-MODULE_LICENSE("GPL v2");
1786
+MODULE_LICENSE("GPL");