This patch adds driver for Omnivision's ov8856 sensor,
the driver supports following features:
- manual exposure/gain(analog and digital) control support
- two link frequencies
- VBLANK/HBLANK support
- test pattern support
- media controller support
- runtime pm support
- supported resolutions
+ 3280x2464 at 30FPS
+ 1640x1232 at 30FPS
Signed-off-by: Ben Kao
---
drivers/media/i2c/Kconfig | 12 +
drivers/media/i2c/Makefile |1 +
drivers/media/i2c/ov8856.c | 1296
3 files changed, 1309 insertions(+)
create mode 100644 drivers/media/i2c/ov8856.c
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index 704af21..4fdcb92 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -806,6 +806,18 @@ config VIDEO_OV7740
This is a Video4Linux2 sensor driver for the OmniVision
OV7740 VGA camera sensor.
+config VIDEO_OV8856
+ tristate "OmniVision OV8856 sensor support"
+ depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+ depends on MEDIA_CAMERA_SUPPORT
+ select V4L2_FWNODE
+ help
+ This is a Video4Linux2 sensor driver for the OmniVision
+ OV8856 camera sensor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ov8856.
+
config VIDEO_OV9650
tristate "OmniVision OV9650/OV9652 sensor support"
depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
index 260d4d9..47accb0 100644
--- a/drivers/media/i2c/Makefile
+++ b/drivers/media/i2c/Makefile
@@ -78,6 +78,7 @@ obj-$(CONFIG_VIDEO_OV7640) += ov7640.o
obj-$(CONFIG_VIDEO_OV7670) += ov7670.o
obj-$(CONFIG_VIDEO_OV772X) += ov772x.o
obj-$(CONFIG_VIDEO_OV7740) += ov7740.o
+obj-$(CONFIG_VIDEO_OV8856) += ov8856.o
obj-$(CONFIG_VIDEO_OV9650) += ov9650.o
obj-$(CONFIG_VIDEO_OV13858) += ov13858.o
obj-$(CONFIG_VIDEO_MT9M032) += mt9m032.o
diff --git a/drivers/media/i2c/ov8856.c b/drivers/media/i2c/ov8856.c
new file mode 100644
index 000..feae739
--- /dev/null
+++ b/drivers/media/i2c/ov8856.c
@@ -0,0 +1,1296 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Intel Corporation.
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#ifndef V4L2_CID_DIGITAL_GAIN
+#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
+#endif
+
+#define OV8856_REG_VALUE_08BIT 1
+#define OV8856_REG_VALUE_16BIT 2
+#define OV8856_REG_VALUE_24BIT 3
+
+#define OV8856_LINK_FREQ_360MHZ36000ULL
+#define OV8856_LINK_FREQ_180MHZ18000ULL
+#define OV8856_SCLK14400ULL
+#define OV8856_MCLK1920
+#define OV8856_DATA_LANES 4
+
+#define OV8856_REG_CHIP_ID 0x300a
+#define OV8856_CHIP_ID 0x00885a
+
+#define OV8856_REG_MODE_SELECT 0x0100
+#define OV8856_MODE_STANDBY0x00
+#define OV8856_MODE_STREAMING 0x01
+
+/* vertical-timings from sensor */
+#define OV8856_REG_VTS 0x380e
+#define OV8856_VTS_MAX 0x7fff
+
+/* horizontal-timings from sensor */
+#define OV8856_REG_HTS 0x380c
+
+/* Exposure controls from sensor */
+#define OV8856_REG_EXPOSURE0x3500
+#defineOV8856_EXPOSURE_MIN 6
+#define OV8856_EXPOSURE_MAX_MARGIN 6
+#defineOV8856_EXPOSURE_STEP1
+
+/* Analog gain controls from sensor */
+#define OV8856_REG_ANALOG_GAIN 0x3508
+#defineOV8856_ANAL_GAIN_MIN128
+#defineOV8856_ANAL_GAIN_MAX2047
+#defineOV8856_ANAL_GAIN_STEP 1
+
+/* Digital gain controls from sensor */
+#define OV8856_REG_MWB_R_GAIN 0x5019
+#define OV8856_REG_MWB_G_GAIN 0x501b
+#define OV8856_REG_MWB_B_GAIN 0x501d
+#define OV8856_DGTL_GAIN_MIN 0
+#define OV8856_DGTL_GAIN_MAX 4095
+#define OV8856_DGTL_GAIN_STEP 1
+#define OV8856_DGTL_GAIN_DEFAULT 1024
+
+/* Test Pattern Control */
+#define OV8856_REG_TEST_PATTERN0x5e00
+#define OV8856_TEST_PATTERN_ENABLE BIT(7)
+#define OV8856_TEST_PATTERN_BAR_SHIFT 2
+
+#define to_ov8856(_sd) container_of(_sd, struct ov8856, sd)
+
+enum {
+ OV8856_LINK_FREQ_720MBPS,
+ OV8856_LINK_FREQ_360MBPS,
+};
+
+struct ov8856_reg {
+ u16 address;
+ u8 val;
+};
+
+struct ov8856_reg_list {
+ u32 num_of_regs;
+ const struct ov8856_reg *regs;
+};
+
+struct ov8856_link_freq_config {
+ const struct ov8856_reg_list reg_list;
+};
+
+struct ov8856_mode {
+ /* Frame width in pixels */
+ u32 width;
+
+ /* Frame height in pixels */
+ u32 height;
+
+ /* Horizontal timining size */
+ u32 hts;
+
+ /* Default vertical timining size */
+ u32 vts_def;
+
+ /* Min vertical timining size
