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openwrt/target/linux/bcm27xx/patches-6.1/950-0312-media-i2c-add-ov9281-driver.patch
Álvaro Fernández Rojas 793f8ab62c bcm27xx: 6.1: add kernel patches 
Add kernel patches for version 6.1.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-06-09 19:12:30 +02:00

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From d26583e9c31d10919c8d4b965b938724fde1ba3c Mon Sep 17 00:00:00 2001
From: Zefa Chen <zefa.chen@rock-chips.com>
Date: Fri, 17 May 2019 18:23:03 +0800
Subject: [PATCH] media: i2c: add ov9281 driver.
Change-Id: I7b77250bbc56d2f861450cf77271ad15f9b88ab1
Signed-off-by: Zefa Chen <zefa.chen@rock-chips.com>
media: i2c: ov9281: fix mclk issue when probe multiple camera.
Takes the ov9281 part only from the Rockchip's patch.
Change-Id: I30e833baf2c1bb07d6d87ddb3b00759ab45a90e4
Signed-off-by: Zefa Chen <zefa.chen@rock-chips.com>
media: i2c: ov9281: add enum_frame_interval function for iq tool 2.2 and hal3
Adds the ov9281 parts of the Rockchip patch adding enum_frame_interval to
a large number of drivers.
Change-Id: I03344cd6cf278dd7c18fce8e97479089ef185a5c
Signed-off-by: Zefa Chen <zefa.chen@rock-chips.com>
media: i2c: ov9281: Fixup for recent kernel releases, and remove custom code
The Rockchip driver was based on a 4.4 kernel, and had several custom
Rockchip parts.
Update to 5.4 kernel APIs, with the relevant controls required by
libcamera, and remove custom Rockchip parts.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
media: i2c: ov9281: Read chip ID via 2 reads
Vision Components have made an OV9281 module which blocks reading
back the majority of registers to comply with NDAs, and in doing
so doesn't allow auto-increment register reading as used when
reading the chip ID.
Use two reads and manually combine the results.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
media: i2c: ov9281: Add support for 8 bit readout
The sensor supports 8 bit mode as well as 10bit, so add the
relevant code to allow selection of this.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
media: ov9281: Add 1280x720 and 640x480 modes
Breaks out common register set and adds the different registers
for 1280x720 (cropped) and 640x480 (skipped) modes
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Fixed picture line bug in all ov9281 modes
Signed-off-by: Mathias Anhalt <mathiasanhalt@web.de>
Added hflip and vflip controls to ov9281
Signed-off-by: Mathias Anhalt <mathiasanhalt@web.de>
media: i2c: ov9281: Remove override of subdev name
From the original Rockchip driver, the subdev was renamed
from the default to being "mov9281 <dev_name>" whereas the
default would have been "ov9281 <dev_name>".
Remove the override to drop back to the default rather than
a vendor custom string.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
media: v4l2-subdev: add subdev-wide state struct
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
media: i2c: ov9281: Add fwnode properties controls
Add call to v4l2_ctrl_new_fwnode_properties to read and
create the fwnode based controls.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
media: i2c: ov9281: Sensor should report RAW color space
Tested on Raspberry Pi running libcamera.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
---
drivers/media/i2c/Kconfig | 11 +
drivers/media/i2c/Makefile | 1 +
drivers/media/i2c/imx290.c | 9 +-
drivers/media/i2c/imx477.c | 30 +-
drivers/media/i2c/irs1125.c | 12 +-
drivers/media/i2c/ov9281.c | 1290 +++++++++++++++++
.../media/platform/bcm2835/bcm2835-unicam.c | 20 +-
.../bcm2835-isp/bcm2835-v4l2-isp.c | 4 +-
8 files changed, 1341 insertions(+), 36 deletions(-)
create mode 100644 drivers/media/i2c/ov9281.c
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -1336,6 +1336,17 @@ config VIDEO_TW2804
To compile this driver as a module, choose M here: the
module will be called tw2804.
+config VIDEO_OV9281
+ tristate "OmniVision OV9281 sensor support"
+ depends on I2C && VIDEO_DEV
+ depends on MEDIA_CAMERA_SUPPORT
+ help
+ This is a Video4Linux2 sensor-level driver for the OmniVision
+ OV9281 camera.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ov9281.
+
config VIDEO_TW9903
tristate "Techwell TW9903 video decoder"
depends on VIDEO_DEV && I2C
--- a/drivers/media/i2c/Makefile
+++ b/drivers/media/i2c/Makefile
@@ -98,6 +98,7 @@ obj-$(CONFIG_VIDEO_OV772X) += ov772x.o
obj-$(CONFIG_VIDEO_OV7740) += ov7740.o
obj-$(CONFIG_VIDEO_OV8856) += ov8856.o
obj-$(CONFIG_VIDEO_OV8865) += ov8865.o
+obj-$(CONFIG_VIDEO_OV9281) += ov9281.o
obj-$(CONFIG_VIDEO_OV9282) += ov9282.o
obj-$(CONFIG_VIDEO_OV9640) += ov9640.o
obj-$(CONFIG_VIDEO_OV9650) += ov9650.o
--- a/drivers/media/i2c/imx290.c
+++ b/drivers/media/i2c/imx290.c
@@ -982,12 +982,13 @@ static int imx290_write_current_format(s
}
static const struct v4l2_rect *
-__imx290_get_pad_crop(struct imx290 *imx290, struct v4l2_subdev_pad_config *cfg,
+__imx290_get_pad_crop(struct imx290 *imx290,
+ struct v4l2_subdev_state *sd_state,
unsigned int pad, enum v4l2_subdev_format_whence which)
{
switch (which) {
case V4L2_SUBDEV_FORMAT_TRY:
- return v4l2_subdev_get_try_crop(&imx290->sd, cfg, pad);
+ return v4l2_subdev_get_try_crop(&imx290->sd, sd_state, pad);
case V4L2_SUBDEV_FORMAT_ACTIVE:
return &imx290->current_mode->crop;
}
@@ -996,7 +997,7 @@ __imx290_get_pad_crop(struct imx290 *imx
}
static int imx290_get_selection(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_selection *sel)
{
switch (sel->target) {
@@ -1004,7 +1005,7 @@ static int imx290_get_selection(struct v
struct imx290 *imx290 = to_imx290(sd);
mutex_lock(&imx290->lock);
- sel->r = *__imx290_get_pad_crop(imx290, cfg, sel->pad,
+ sel->r = *__imx290_get_pad_crop(imx290, sd_state, sel->pad,
sel->which);
mutex_unlock(&imx290->lock);
--- a/drivers/media/i2c/imx477.c
+++ b/drivers/media/i2c/imx477.c
@@ -1272,9 +1272,9 @@ static int imx477_open(struct v4l2_subde
{
struct imx477 *imx477 = to_imx477(sd);
struct v4l2_mbus_framefmt *try_fmt_img =
- v4l2_subdev_get_try_format(sd, fh->pad, IMAGE_PAD);
+ v4l2_subdev_get_try_format(sd, fh->state, IMAGE_PAD);
struct v4l2_mbus_framefmt *try_fmt_meta =
- v4l2_subdev_get_try_format(sd, fh->pad, METADATA_PAD);
+ v4l2_subdev_get_try_format(sd, fh->state, METADATA_PAD);
struct v4l2_rect *try_crop;
mutex_lock(&imx477->mutex);
@@ -1293,7 +1293,7 @@ static int imx477_open(struct v4l2_subde
try_fmt_meta->field = V4L2_FIELD_NONE;
/* Initialize try_crop */
- try_crop = v4l2_subdev_get_try_crop(sd, fh->pad, IMAGE_PAD);
+ try_crop = v4l2_subdev_get_try_crop(sd, fh->state, IMAGE_PAD);
try_crop->left = IMX477_PIXEL_ARRAY_LEFT;
try_crop->top = IMX477_PIXEL_ARRAY_TOP;
try_crop->width = IMX477_PIXEL_ARRAY_WIDTH;
@@ -1425,7 +1425,7 @@ static const struct v4l2_ctrl_ops imx477
};
static int imx477_enum_mbus_code(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
struct imx477 *imx477 = to_imx477(sd);
@@ -1450,7 +1450,7 @@ static int imx477_enum_mbus_code(struct
}
static int imx477_enum_frame_size(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_size_enum *fse)
{
struct imx477 *imx477 = to_imx477(sd);
@@ -1516,7 +1516,7 @@ static void imx477_update_metadata_pad_f
}
static int imx477_get_pad_format(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct imx477 *imx477 = to_imx477(sd);
@@ -1528,7 +1528,8 @@ static int imx477_get_pad_format(struct
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
struct v4l2_mbus_framefmt *try_fmt =
- v4l2_subdev_get_try_format(&imx477->sd, cfg, fmt->pad);
+ v4l2_subdev_get_try_format(&imx477->sd, sd_state,
+ fmt->pad);
/* update the code which could change due to vflip or hflip: */
try_fmt->code = fmt->pad == IMAGE_PAD ?
imx477_get_format_code(imx477, try_fmt->code) :
@@ -1593,7 +1594,7 @@ static void imx477_set_framing_limits(st
}
static int imx477_set_pad_format(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct v4l2_mbus_framefmt *framefmt;
@@ -1622,7 +1623,7 @@ static int imx477_set_pad_format(struct
fmt->format.height);
imx477_update_image_pad_format(imx477, mode, fmt);
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
- framefmt = v4l2_subdev_get_try_format(sd, cfg,
+ framefmt = v4l2_subdev_get_try_format(sd, sd_state,
fmt->pad);
*framefmt = fmt->format;
} else if (imx477->mode != mode) {
@@ -1632,7 +1633,7 @@ static int imx477_set_pad_format(struct
}
} else {
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
- framefmt = v4l2_subdev_get_try_format(sd, cfg,
+ framefmt = v4l2_subdev_get_try_format(sd, sd_state,
fmt->pad);
*framefmt = fmt->format;
} else {
@@ -1647,12 +1648,13 @@ static int imx477_set_pad_format(struct
}
static const struct v4l2_rect *
-__imx477_get_pad_crop(struct imx477 *imx477, struct v4l2_subdev_pad_config *cfg,
+__imx477_get_pad_crop(struct imx477 *imx477,
+ struct v4l2_subdev_state *sd_state,
unsigned int pad, enum v4l2_subdev_format_whence which)
{
switch (which) {
case V4L2_SUBDEV_FORMAT_TRY:
- return v4l2_subdev_get_try_crop(&imx477->sd, cfg, pad);
+ return v4l2_subdev_get_try_crop(&imx477->sd, sd_state, pad);
case V4L2_SUBDEV_FORMAT_ACTIVE:
return &imx477->mode->crop;
}
@@ -1661,7 +1663,7 @@ __imx477_get_pad_crop(struct imx477 *imx
}
static int imx477_get_selection(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_selection *sel)
{
switch (sel->target) {
@@ -1669,7 +1671,7 @@ static int imx477_get_selection(struct v
struct imx477 *imx477 = to_imx477(sd);
mutex_lock(&imx477->mutex);
- sel->r = *__imx477_get_pad_crop(imx477, cfg, sel->pad,
+ sel->r = *__imx477_get_pad_crop(imx477, sd_state, sel->pad,
sel->which);
mutex_unlock(&imx477->mutex);
--- a/drivers/media/i2c/irs1125.c
+++ b/drivers/media/i2c/irs1125.c
@@ -562,8 +562,8 @@ static const struct v4l2_subdev_video_op
};
static int irs1125_enum_mbus_code(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_mbus_code_enum *code)
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum *code)
{
if (code->index > 0)
return -EINVAL;
@@ -574,7 +574,7 @@ static int irs1125_enum_mbus_code(struct
}
static int irs1125_set_get_fmt(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *format)
{
struct v4l2_mbus_framefmt *fmt = &format->format;
@@ -930,7 +930,7 @@ static int irs1125_detect(struct v4l2_su
static int irs1125_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct v4l2_mbus_framefmt *format =
- v4l2_subdev_get_try_format(sd, fh->pad, 0);
+ v4l2_subdev_get_try_format(sd, fh->state, 0);
format->code = MEDIA_BUS_FMT_Y12_1X12;
format->width = IRS1125_WINDOW_WIDTH_DEF;
@@ -1161,7 +1161,7 @@ mutex_remove:
return ret;
}
-static int irs1125_remove(struct i2c_client *client)
+static void irs1125_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct irs1125 *irs1125 = to_state(sd);
@@ -1171,8 +1171,6 @@ static int irs1125_remove(struct i2c_cli
v4l2_device_unregister_subdev(sd);
mutex_destroy(&irs1125->lock);
v4l2_ctrl_handler_free(&irs1125->ctrl_handler);
-
- return 0;
}
#if IS_ENABLED(CONFIG_OF)
--- /dev/null
+++ b/drivers/media/i2c/ov9281.c
@@ -0,0 +1,1290 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Omnivision OV9281 1280x800 global shutter image sensor driver
+ *
+ * This driver has been taken from
+ * https://github.com/rockchip-linux/kernel/blob/develop-4.4/drivers/media/i2c/ov9281.c
+ * cleaned up, made to compile against mainline kernels instead of the Rockchip
+ * vendor kernel, and the relevant controls added to work with libcamera.
+ *
+ * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
+ * V0.0X01.0X02 fix mclk issue when probe multiple camera.
+ * V0.0X01.0X03 add enum_frame_interval function.
+ */
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
+#include <linux/sysfs.h>
+#include <linux/slab.h>
+#include <media/media-entity.h>
+#include <media/v4l2-async.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-subdev.h>
+
+#define OV9281_LINK_FREQ_400MHZ 400000000
+#define OV9281_LANES 2
+
+/* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */
+#define OV9281_PIXEL_RATE_10BIT (OV9281_LINK_FREQ_400MHZ * 2 * \
+ OV9281_LANES / 10)
+#define OV9281_PIXEL_RATE_8BIT (OV9281_LINK_FREQ_400MHZ * 2 * \
+ OV9281_LANES / 8)
+#define OV9281_XVCLK_FREQ 24000000
+
+#define CHIP_ID 0x9281
+#define OV9281_REG_CHIP_ID 0x300a
+
+#define OV9281_REG_TIMING_FORMAT_1 0x3820
+#define OV9281_REG_TIMING_FORMAT_2 0x3821
+#define OV9281_FLIP_BIT BIT(2)
+
+#define OV9281_REG_CTRL_MODE 0x0100
+#define OV9281_MODE_SW_STANDBY 0x0
+#define OV9281_MODE_STREAMING BIT(0)
+
+#define OV9281_REG_EXPOSURE 0x3500
+#define OV9281_EXPOSURE_MIN 4
+#define OV9281_EXPOSURE_STEP 1
+#define OV9281_VTS_MAX 0x7fff
+
+#define OV9281_REG_GAIN_H 0x3508
+#define OV9281_REG_GAIN_L 0x3509
+#define OV9281_GAIN_H_MASK 0x07
+#define OV9281_GAIN_H_SHIFT 8
+#define OV9281_GAIN_L_MASK 0xff
+#define OV9281_GAIN_MIN 0x10
+#define OV9281_GAIN_MAX 0xf8
+#define OV9281_GAIN_STEP 1
+#define OV9281_GAIN_DEFAULT 0x10
+
+#define OV9281_REG_TEST_PATTERN 0x5e00
+#define OV9281_TEST_PATTERN_ENABLE 0x80
+#define OV9281_TEST_PATTERN_DISABLE 0x0
+
+#define OV9281_REG_VTS 0x380e
+
+/*
+ * OV9281 native and active pixel array size.
+ * Datasheet not available to confirm these values, so assume there are no
+ * border pixels.
+ */
+#define OV9281_NATIVE_WIDTH 1280U
+#define OV9281_NATIVE_HEIGHT 800U
+#define OV9281_PIXEL_ARRAY_LEFT 0U
+#define OV9281_PIXEL_ARRAY_TOP 0U
+#define OV9281_PIXEL_ARRAY_WIDTH 1280U
+#define OV9281_PIXEL_ARRAY_HEIGHT 800U
+
+#define REG_NULL 0xFFFF
+
+#define OV9281_REG_VALUE_08BIT 1
+#define OV9281_REG_VALUE_16BIT 2
+#define OV9281_REG_VALUE_24BIT 3
+
+#define OV9281_NAME "ov9281"
+
+static const char * const ov9281_supply_names[] = {
+ "avdd", /* Analog power */
+ "dovdd", /* Digital I/O power */
+ "dvdd", /* Digital core power */
+};
+
+#define OV9281_NUM_SUPPLIES ARRAY_SIZE(ov9281_supply_names)
+
+struct regval {
+ u16 addr;
+ u8 val;
+};
+
+struct ov9281_mode {
+ u32 width;
+ u32 height;
+ u32 hts_def;
+ u32 vts_def;
+ u32 exp_def;
+ struct v4l2_rect crop;
+ const struct regval *reg_list;
+};
+
+struct ov9281 {
+ struct i2c_client *client;
+ struct clk *xvclk;
+ struct gpio_desc *reset_gpio;
+ struct gpio_desc *pwdn_gpio;
+ struct regulator_bulk_data supplies[OV9281_NUM_SUPPLIES];
+
+ struct v4l2_subdev subdev;
+ struct media_pad pad;
+ struct v4l2_ctrl_handler ctrl_handler;
+ struct v4l2_ctrl *exposure;
+ struct v4l2_ctrl *anal_gain;
+ struct v4l2_ctrl *digi_gain;
+ struct v4l2_ctrl *hblank;
+ struct v4l2_ctrl *vblank;
+ struct v4l2_ctrl *hflip;
+ struct v4l2_ctrl *vflip;
+ struct v4l2_ctrl *pixel_rate;
+ struct v4l2_ctrl *test_pattern;
+ struct mutex mutex;
+ bool streaming;
+ bool power_on;
+ const struct ov9281_mode *cur_mode;
+ u32 code;
+};
+
+#define to_ov9281(sd) container_of(sd, struct ov9281, subdev)
+
+/*
+ * Xclk 24Mhz
+ * max_framerate 120fps for 10 bit, 144fps for 8 bit.
+ * mipi_datarate per lane 800Mbps
+ */
+static const struct regval ov9281_common_regs[] = {
+ {0x0103, 0x01},
+ {0x0302, 0x32},
+ {0x030e, 0x02},
+ {0x3001, 0x00},
+ {0x3004, 0x00},
+ {0x3005, 0x00},
+ {0x3006, 0x04},
+ {0x3011, 0x0a},
+ {0x3013, 0x18},
+ {0x3022, 0x01},
+ {0x3023, 0x00},
+ {0x302c, 0x00},
+ {0x302f, 0x00},
+ {0x3030, 0x04},
+ {0x3039, 0x32},
+ {0x303a, 0x00},
+ {0x303f, 0x01},
+ {0x3500, 0x00},
+ {0x3501, 0x2a},
+ {0x3502, 0x90},
+ {0x3503, 0x08},
+ {0x3505, 0x8c},
+ {0x3507, 0x03},
+ {0x3508, 0x00},
+ {0x3509, 0x10},
+ {0x3610, 0x80},
+ {0x3611, 0xa0},
+ {0x3620, 0x6f},
+ {0x3632, 0x56},
+ {0x3633, 0x78},
+ {0x3666, 0x00},
+ {0x366f, 0x5a},
+ {0x3680, 0x84},
+ {0x3712, 0x80},
+ {0x372d, 0x22},
+ {0x3731, 0x80},
+ {0x3732, 0x30},
+ {0x377d, 0x22},
+ {0x3788, 0x02},
+ {0x3789, 0xa4},
+ {0x378a, 0x00},
+ {0x378b, 0x4a},
+ {0x3799, 0x20},
+ {0x3881, 0x42},
+ {0x38b1, 0x00},
+ {0x3920, 0xff},
+ {0x4010, 0x40},
+ {0x4043, 0x40},
+ {0x4307, 0x30},
+ {0x4317, 0x00},
+ {0x4501, 0x00},
+ {0x450a, 0x08},
+ {0x4601, 0x04},
+ {0x470f, 0x00},
+ {0x4f07, 0x00},
+ {0x4800, 0x00},
+ {0x5000, 0x9f},
+ {0x5001, 0x00},
+ {0x5e00, 0x00},
+ {0x5d00, 0x07},
+ {0x5d01, 0x00},
+ {REG_NULL, 0x00},
+};
+
+static const struct regval ov9281_1280x800_regs[] = {
+ {0x3778, 0x00},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x00},
+ {0x3804, 0x05},
+ {0x3805, 0x0f},
+ {0x3806, 0x03},
+ {0x3807, 0x2f},
+ {0x3808, 0x05},
+ {0x3809, 0x00},
+ {0x380a, 0x03},
+ {0x380b, 0x20},
+ {0x380c, 0x02},
+ {0x380d, 0xd8},
+ {0x380e, 0x03},
+ {0x380f, 0x8e},
+ {0x3810, 0x00},
+ {0x3811, 0x08},
+ {0x3812, 0x00},
+ {0x3813, 0x08},
+ {0x3814, 0x11},
+ {0x3815, 0x11},
+ {0x3820, 0x40},
+ {0x3821, 0x00},
+ {0x4003, 0x40},
+ {0x4008, 0x04},
+ {0x4009, 0x0b},
+ {0x400c, 0x00},
+ {0x400d, 0x07},
+ {0x4507, 0x00},
+ {0x4509, 0x00},
+ {REG_NULL, 0x00},
+};
+
+static const struct regval ov9281_1280x720_regs[] = {
+ {0x3778, 0x00},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x28},
+ {0x3804, 0x05},
+ {0x3805, 0x0f},
+ {0x3806, 0x03},
+ {0x3807, 0x07},
+ {0x3808, 0x05},
+ {0x3809, 0x00},
+ {0x380a, 0x02},
+ {0x380b, 0xd0},
+ {0x380c, 0x02},
+ {0x380d, 0xd8},
+ {0x380e, 0x03},
+ {0x380f, 0x8e},
+ {0x3810, 0x00},
+ {0x3811, 0x08},
+ {0x3812, 0x00},
+ {0x3813, 0x08},
+ {0x3814, 0x11},
+ {0x3815, 0x11},
+ {0x3820, 0x40},
+ {0x3821, 0x00},
+ {0x4003, 0x40},
+ {0x4008, 0x04},
+ {0x4009, 0x0b},
+ {0x400c, 0x00},
+ {0x400d, 0x07},
+ {0x4507, 0x00},
+ {0x4509, 0x00},
+ {REG_NULL, 0x00},
+};
+
+static const struct regval ov9281_640x400_regs[] = {
+ {0x3778, 0x10},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x00},
+ {0x3804, 0x05},
+ {0x3805, 0x0f},
+ {0x3806, 0x03},
+ {0x3807, 0x2f},
+ {0x3808, 0x02},
+ {0x3809, 0x80},
+ {0x380a, 0x01},
+ {0x380b, 0x90},
+ {0x380c, 0x02},
+ {0x380d, 0xd8},
+ {0x380e, 0x02},
+ {0x380f, 0x08},
+ {0x3810, 0x00},
+ {0x3811, 0x04},
+ {0x3812, 0x00},
+ {0x3813, 0x04},
+ {0x3814, 0x31},
+ {0x3815, 0x22},
+ {0x3820, 0x60},
+ {0x3821, 0x01},
+ {0x4008, 0x02},
+ {0x4009, 0x05},
+ {0x400c, 0x00},
+ {0x400d, 0x03},
+ {0x4507, 0x03},
+ {0x4509, 0x80},
+ {REG_NULL, 0x00},
+};
+
+static const struct regval op_10bit[] = {
+ {0x030d, 0x50},
+ {0x3662, 0x05},
+ {REG_NULL, 0x00},
+};
+
+static const struct regval op_8bit[] = {
+ {0x030d, 0x60},
+ {0x3662, 0x07},
+ {REG_NULL, 0x00},
+};
+
+static const struct ov9281_mode supported_modes[] = {
+ {
+ .width = 1280,
+ .height = 800,
+ .exp_def = 0x0320,
+ .hts_def = 0x05b0, /* 0x2d8*2 */
+ .vts_def = 0x038e,
+ .crop = {
+ .left = 0,
+ .top = 0,
+ .width = 1280,
+ .height = 800
+ },
+ .reg_list = ov9281_1280x800_regs,
+ },
+ {
+ .width = 1280,
+ .height = 720,
+ .exp_def = 0x0320,
+ .hts_def = 0x05b0,
+ .vts_def = 761,
+ .crop = {
+ .left = 0,
+ .top = 40,
+ .width = 1280,
+ .height = 720
+ },
+ .reg_list = ov9281_1280x720_regs,
+ },
+ {
+ .width = 640,
+ .height = 400,
+ .exp_def = 0x0320,
+ .hts_def = 0x05b0,
+ .vts_def = 421,
+ .crop = {
+ .left = 0,
+ .top = 0,
+ .width = 1280,
+ .height = 800
+ },
+ .reg_list = ov9281_640x400_regs,
+ },
+};
+
+static const s64 link_freq_menu_items[] = {
+ OV9281_LINK_FREQ_400MHZ
+};
+
+static const char * const ov9281_test_pattern_menu[] = {
+ "Disabled",
+ "Vertical Color Bar Type 1",
+ "Vertical Color Bar Type 2",
+ "Vertical Color Bar Type 3",
+ "Vertical Color Bar Type 4"
+};
+
+/* Write registers up to 4 at a time */
+static int ov9281_write_reg(struct i2c_client *client, u16 reg,
+ u32 len, u32 val)
+{
+ u32 buf_i, val_i;
+ u8 buf[6];
+ u8 *val_p;
+ __be32 val_be;
+
+ if (len > 4)
+ return -EINVAL;
+
+ buf[0] = reg >> 8;
+ buf[1] = reg & 0xff;
+
+ val_be = cpu_to_be32(val);
+ val_p = (u8 *)&val_be;
+ buf_i = 2;
+ val_i = 4 - len;
+
+ while (val_i < 4)
+ buf[buf_i++] = val_p[val_i++];
+
+ if (i2c_master_send(client, buf, len + 2) != len + 2)
+ return -EIO;
+
+ return 0;
+}
+
+static int ov9281_write_array(struct i2c_client *client,
+ const struct regval *regs)
+{
+ u32 i;
+ int ret = 0;
+
+ for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++)
+ ret = ov9281_write_reg(client, regs[i].addr,
+ OV9281_REG_VALUE_08BIT, regs[i].val);
+
+ return ret;
+}
+
+/* Read registers up to 4 at a time */
+static int ov9281_read_reg(struct i2c_client *client, u16 reg, unsigned int len,
+ u32 *val)
+{
+ struct i2c_msg msgs[2];
+ u8 *data_be_p;
+ __be32 data_be = 0;
+ __be16 reg_addr_be = cpu_to_be16(reg);
+ int ret;
+
+ if (len > 4 || !len)
+ return -EINVAL;
+
+ data_be_p = (u8 *)&data_be;
+ /* Write register address */
+ msgs[0].addr = client->addr;
+ msgs[0].flags = 0;
+ msgs[0].len = 2;
+ msgs[0].buf = (u8 *)&reg_addr_be;
+
+ /* Read data from register */
+ msgs[1].addr = client->addr;
+ msgs[1].flags = I2C_M_RD;
+ msgs[1].len = len;
+ msgs[1].buf = &data_be_p[4 - len];
+
+ ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (ret != ARRAY_SIZE(msgs))
+ return -EIO;
+
+ *val = be32_to_cpu(data_be);
+
+ return 0;
+}
+
+static int ov9281_get_reso_dist(const struct ov9281_mode *mode,
+ struct v4l2_mbus_framefmt *framefmt)
+{
+ return abs(mode->width - framefmt->width) +
+ abs(mode->height - framefmt->height);
+}
+
+static const struct ov9281_mode *
+ov9281_find_best_fit(struct v4l2_subdev_format *fmt)
+{
+ struct v4l2_mbus_framefmt *framefmt = &fmt->format;
+ int dist;
+ int cur_best_fit = 0;
+ int cur_best_fit_dist = -1;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
+ dist = ov9281_get_reso_dist(&supported_modes[i], framefmt);
+ if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
+ cur_best_fit_dist = dist;
+ cur_best_fit = i;
+ }
+ }
+
+ return &supported_modes[cur_best_fit];
+}
+
+static int ov9281_set_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ov9281 *ov9281 = to_ov9281(sd);
+ const struct ov9281_mode *mode;
+ s64 h_blank, vblank_def, pixel_rate;
+
+ mutex_lock(&ov9281->mutex);
+
+ mode = ov9281_find_best_fit(fmt);
+ if (fmt->format.code != MEDIA_BUS_FMT_Y8_1X8)
+ fmt->format.code = MEDIA_BUS_FMT_Y10_1X10;
+ fmt->format.width = mode->width;
+ fmt->format.height = mode->height;
+ fmt->format.field = V4L2_FIELD_NONE;
+ fmt->format.colorspace = V4L2_COLORSPACE_RAW;
+ fmt->format.ycbcr_enc =
+ V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->format.colorspace);
+ fmt->format.quantization =
+ V4L2_MAP_QUANTIZATION_DEFAULT(true, fmt->format.colorspace,
+ fmt->format.ycbcr_enc);
+ fmt->format.xfer_func =
+ V4L2_MAP_XFER_FUNC_DEFAULT(fmt->format.colorspace);
+
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad) = fmt->format;
+ } else {
+ ov9281->cur_mode = mode;
+ ov9281->code = fmt->format.code;
+ h_blank = mode->hts_def - mode->width;
+ __v4l2_ctrl_modify_range(ov9281->hblank, h_blank,
+ h_blank, 1, h_blank);
+ __v4l2_ctrl_s_ctrl(ov9281->hblank, h_blank);
+ vblank_def = mode->vts_def - mode->height;
+ __v4l2_ctrl_modify_range(ov9281->vblank, vblank_def,
+ OV9281_VTS_MAX - mode->height,
+ 1, vblank_def);
+ __v4l2_ctrl_s_ctrl(ov9281->vblank, vblank_def);
+
+ pixel_rate = (fmt->format.code == MEDIA_BUS_FMT_Y10_1X10) ?
+ OV9281_PIXEL_RATE_10BIT : OV9281_PIXEL_RATE_8BIT;
+ __v4l2_ctrl_modify_range(ov9281->pixel_rate, pixel_rate,
+ pixel_rate, 1, pixel_rate);
+ }
+
+ mutex_unlock(&ov9281->mutex);
+
+ return 0;
+}
+
+static int ov9281_get_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ov9281 *ov9281 = to_ov9281(sd);
+ const struct ov9281_mode *mode = ov9281->cur_mode;
+
+ mutex_lock(&ov9281->mutex);
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ fmt->format = *v4l2_subdev_get_try_format(sd, sd_state,
+ fmt->pad);
+ } else {
+ fmt->format.width = mode->width;
+ fmt->format.height = mode->height;
+ fmt->format.code = ov9281->code;
+ fmt->format.field = V4L2_FIELD_NONE;
+ fmt->format.colorspace = V4L2_COLORSPACE_RAW;
+ fmt->format.ycbcr_enc =
+ V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->format.colorspace);
+ fmt->format.quantization =
+ V4L2_MAP_QUANTIZATION_DEFAULT(true,
+ fmt->format.colorspace,
+ fmt->format.ycbcr_enc);
+ fmt->format.xfer_func =
+ V4L2_MAP_XFER_FUNC_DEFAULT(fmt->format.colorspace);
+ }
+ mutex_unlock(&ov9281->mutex);
+
+ return 0;
+}
+
+static int ov9281_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ switch (code->index) {
+ default:
+ return -EINVAL;
+ case 0:
+ code->code = MEDIA_BUS_FMT_Y10_1X10;
+ break;
+ case 1:
+ code->code = MEDIA_BUS_FMT_Y8_1X8;
+ break;
+ }
+
+ return 0;
+}
+
+static int ov9281_enum_frame_sizes(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_frame_size_enum *fse)
+{
+ if (fse->index >= ARRAY_SIZE(supported_modes))
+ return -EINVAL;
+
+ if (fse->code != MEDIA_BUS_FMT_Y10_1X10 &&
+ fse->code != MEDIA_BUS_FMT_Y8_1X8)
+ return -EINVAL;
+
+ fse->min_width = supported_modes[fse->index].width;
+ fse->max_width = supported_modes[fse->index].width;
+ fse->max_height = supported_modes[fse->index].height;
+ fse->min_height = supported_modes[fse->index].height;
+
+ return 0;
+}
+
+static int ov9281_enable_test_pattern(struct ov9281 *ov9281, u32 pattern)
+{
+ u32 val;
+
+ if (pattern)
+ val = (pattern - 1) | OV9281_TEST_PATTERN_ENABLE;
+ else
+ val = OV9281_TEST_PATTERN_DISABLE;
+
+ return ov9281_write_reg(ov9281->client, OV9281_REG_TEST_PATTERN,
+ OV9281_REG_VALUE_08BIT, val);
+}
+
+static int ov9281_set_ctrl_hflip(struct ov9281 *ov9281, int value)
+{
+ u32 current_val;
+ int ret = ov9281_read_reg(ov9281->client, OV9281_REG_TIMING_FORMAT_2,
+ OV9281_REG_VALUE_08BIT, &current_val);
+ if (!ret) {
+ if (value)
+ current_val |= OV9281_FLIP_BIT;
+ else
+ current_val &= ~OV9281_FLIP_BIT;
+ return ov9281_write_reg(ov9281->client,
+ OV9281_REG_TIMING_FORMAT_2,
+ OV9281_REG_VALUE_08BIT,
+ current_val);
+ }
+ return ret;
+}
+
+static int ov9281_set_ctrl_vflip(struct ov9281 *ov9281, int value)
+{
+ u32 current_val;
+ int ret = ov9281_read_reg(ov9281->client, OV9281_REG_TIMING_FORMAT_1,
+ OV9281_REG_VALUE_08BIT, &current_val);
+ if (!ret) {
+ if (value)
+ current_val |= OV9281_FLIP_BIT;
+ else
+ current_val &= ~OV9281_FLIP_BIT;
+ return ov9281_write_reg(ov9281->client,
+ OV9281_REG_TIMING_FORMAT_1,
+ OV9281_REG_VALUE_08BIT,
+ current_val);
+ }
+ return ret;
+}
+
+static const struct v4l2_rect *
+__ov9281_get_pad_crop(struct ov9281 *ov9281,
+ struct v4l2_subdev_state *sd_state,
+ unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+ switch (which) {
+ case V4L2_SUBDEV_FORMAT_TRY:
+ return v4l2_subdev_get_try_crop(&ov9281->subdev, sd_state,
+ pad);
+ case V4L2_SUBDEV_FORMAT_ACTIVE:
+ return &ov9281->cur_mode->crop;
+ }
+
+ return NULL;
+}
+
+static int ov9281_get_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel)
+{
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP: {
+ struct ov9281 *ov9281 = to_ov9281(sd);
+
+ mutex_lock(&ov9281->mutex);
+ sel->r = *__ov9281_get_pad_crop(ov9281, sd_state, sel->pad,
+ sel->which);
+ mutex_unlock(&ov9281->mutex);
+
+ return 0;
+ }
+
+ case V4L2_SEL_TGT_NATIVE_SIZE:
+ sel->r.top = 0;
+ sel->r.left = 0;
+ sel->r.width = OV9281_NATIVE_WIDTH;
+ sel->r.height = OV9281_NATIVE_HEIGHT;
+
+ return 0;
+
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ sel->r.top = OV9281_PIXEL_ARRAY_TOP;
+ sel->r.left = OV9281_PIXEL_ARRAY_LEFT;
+ sel->r.width = OV9281_PIXEL_ARRAY_WIDTH;
+ sel->r.height = OV9281_PIXEL_ARRAY_HEIGHT;
+
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int __ov9281_start_stream(struct ov9281 *ov9281)
+{
+ int ret;
+
+ ret = ov9281_write_array(ov9281->client, ov9281_common_regs);
+ if (ret)
+ return ret;
+
+ ret = ov9281_write_array(ov9281->client, ov9281->cur_mode->reg_list);
+ if (ret)
+ return ret;
+
+ if (ov9281->code == MEDIA_BUS_FMT_Y10_1X10)
+ ret = ov9281_write_array(ov9281->client, op_10bit);
+ else
+ ret = ov9281_write_array(ov9281->client, op_8bit);
+ if (ret)
+ return ret;
+
+ /* In case these controls are set before streaming */
+ mutex_unlock(&ov9281->mutex);
+ ret = v4l2_ctrl_handler_setup(&ov9281->ctrl_handler);
+ mutex_lock(&ov9281->mutex);
+ if (ret)
+ return ret;
+
+ return ov9281_write_reg(ov9281->client, OV9281_REG_CTRL_MODE,
+ OV9281_REG_VALUE_08BIT, OV9281_MODE_STREAMING);
+}
+
+static int __ov9281_stop_stream(struct ov9281 *ov9281)
+{
+ return ov9281_write_reg(ov9281->client, OV9281_REG_CTRL_MODE,
+ OV9281_REG_VALUE_08BIT, OV9281_MODE_SW_STANDBY);
+}
+
+static int ov9281_s_stream(struct v4l2_subdev *sd, int on)
+{
+ struct ov9281 *ov9281 = to_ov9281(sd);
+ struct i2c_client *client = ov9281->client;
+ int ret = 0;
+
+ mutex_lock(&ov9281->mutex);
+ on = !!on;
+ if (on == ov9281->streaming)
+ goto unlock_and_return;
+
+ if (on) {
+ ret = pm_runtime_get_sync(&client->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(&client->dev);
+ goto unlock_and_return;
+ }
+
+ ret = __ov9281_start_stream(ov9281);
+ if (ret) {
+ v4l2_err(sd, "start stream failed while write regs\n");
+ pm_runtime_put(&client->dev);
+ goto unlock_and_return;
+ }
+ } else {
+ __ov9281_stop_stream(ov9281);
+ pm_runtime_put(&client->dev);
+ }
+
+ ov9281->streaming = on;
+
+unlock_and_return:
+ mutex_unlock(&ov9281->mutex);
+
+ return ret;
+}
+
+static int ov9281_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct ov9281 *ov9281 = to_ov9281(sd);
+ struct i2c_client *client = ov9281->client;
+ int ret = 0;
+
+ mutex_lock(&ov9281->mutex);
+
+ /* If the power state is not modified - no work to do. */
+ if (ov9281->power_on == !!on)
+ goto unlock_and_return;
+
+ if (on) {
+ ret = pm_runtime_get_sync(&client->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(&client->dev);
+ goto unlock_and_return;
+ }
+ ov9281->power_on = true;
+ } else {
+ pm_runtime_put(&client->dev);
+ ov9281->power_on = false;
+ }
+
+unlock_and_return:
+ mutex_unlock(&ov9281->mutex);
+
+ return ret;
+}
+
+/* Calculate the delay in us by clock rate and clock cycles */
+static inline u32 ov9281_cal_delay(u32 cycles)
+{
+ return DIV_ROUND_UP(cycles, OV9281_XVCLK_FREQ / 1000 / 1000);
+}
+
+static int __ov9281_power_on(struct ov9281 *ov9281)
+{
+ int ret;
+ u32 delay_us;
+ struct device *dev = &ov9281->client->dev;
+
+ ret = clk_set_rate(ov9281->xvclk, OV9281_XVCLK_FREQ);
+ if (ret < 0)
+ dev_warn(dev, "Failed to set xvclk rate (24MHz)\n");
+ if (clk_get_rate(ov9281->xvclk) != OV9281_XVCLK_FREQ)
+ dev_warn(dev, "xvclk mismatched, modes are based on 24MHz - rate is %lu\n",
+ clk_get_rate(ov9281->xvclk));
+
+ ret = clk_prepare_enable(ov9281->xvclk);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enable xvclk\n");
+ return ret;
+ }
+
+ if (!IS_ERR(ov9281->reset_gpio))
+ gpiod_set_value_cansleep(ov9281->reset_gpio, 0);
+
+ ret = regulator_bulk_enable(OV9281_NUM_SUPPLIES, ov9281->supplies);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enable regulators\n");
+ goto disable_clk;
+ }
+
+ if (!IS_ERR(ov9281->reset_gpio))
+ gpiod_set_value_cansleep(ov9281->reset_gpio, 1);
+
+ usleep_range(500, 1000);
+ if (!IS_ERR(ov9281->pwdn_gpio))
+ gpiod_set_value_cansleep(ov9281->pwdn_gpio, 1);
+
+ /* 8192 cycles prior to first SCCB transaction */
+ delay_us = ov9281_cal_delay(8192);
+ usleep_range(delay_us, delay_us * 2);
+
+ return 0;
+
+disable_clk:
+ clk_disable_unprepare(ov9281->xvclk);
+
+ return ret;
+}
+
+static void __ov9281_power_off(struct ov9281 *ov9281)
+{
+ if (!IS_ERR(ov9281->pwdn_gpio))
+ gpiod_set_value_cansleep(ov9281->pwdn_gpio, 0);
+ clk_disable_unprepare(ov9281->xvclk);
+ if (!IS_ERR(ov9281->reset_gpio))
+ gpiod_set_value_cansleep(ov9281->reset_gpio, 0);
+ regulator_bulk_disable(OV9281_NUM_SUPPLIES, ov9281->supplies);
+}
+
+static int ov9281_runtime_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct ov9281 *ov9281 = to_ov9281(sd);
+
+ return __ov9281_power_on(ov9281);
+}
+
+static int ov9281_runtime_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct ov9281 *ov9281 = to_ov9281(sd);
+
+ __ov9281_power_off(ov9281);
+
+ return 0;
+}
+
+static int ov9281_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ struct ov9281 *ov9281 = to_ov9281(sd);
+ struct v4l2_mbus_framefmt *try_fmt =
+ v4l2_subdev_get_try_format(sd, fh->state, 0);
+ const struct ov9281_mode *def_mode = &supported_modes[0];
+
+ mutex_lock(&ov9281->mutex);
+ /* Initialize try_fmt */
+ try_fmt->width = def_mode->width;
+ try_fmt->height = def_mode->height;
+ try_fmt->code = MEDIA_BUS_FMT_Y10_1X10;
+ try_fmt->field = V4L2_FIELD_NONE;
+ try_fmt->colorspace = V4L2_COLORSPACE_RAW;
+ try_fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(try_fmt->colorspace);
+ try_fmt->quantization =
+ V4L2_MAP_QUANTIZATION_DEFAULT(true, try_fmt->colorspace,
+ try_fmt->ycbcr_enc);
+ try_fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(try_fmt->colorspace);
+
+ mutex_unlock(&ov9281->mutex);
+ /* No crop or compose */
+
+ return 0;
+}
+
+static const struct dev_pm_ops ov9281_pm_ops = {
+ SET_RUNTIME_PM_OPS(ov9281_runtime_suspend,
+ ov9281_runtime_resume, NULL)
+};
+
+static const struct v4l2_subdev_internal_ops ov9281_internal_ops = {
+ .open = ov9281_open,
+};
+
+static const struct v4l2_subdev_core_ops ov9281_core_ops = {
+ .s_power = ov9281_s_power,
+};
+
+static const struct v4l2_subdev_video_ops ov9281_video_ops = {
+ .s_stream = ov9281_s_stream,
+};
+
+static const struct v4l2_subdev_pad_ops ov9281_pad_ops = {
+ .enum_mbus_code = ov9281_enum_mbus_code,
+ .enum_frame_size = ov9281_enum_frame_sizes,
+ .get_fmt = ov9281_get_fmt,
+ .set_fmt = ov9281_set_fmt,
+ .get_selection = ov9281_get_selection,
+};
+
+static const struct v4l2_subdev_ops ov9281_subdev_ops = {
+ .core = &ov9281_core_ops,
+ .video = &ov9281_video_ops,
+ .pad = &ov9281_pad_ops,
+};
+
+static int ov9281_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct ov9281 *ov9281 = container_of(ctrl->handler,
+ struct ov9281, ctrl_handler);
+ struct i2c_client *client = ov9281->client;
+ s64 max;
+ int ret = 0;
+
+ /* Propagate change of current control to all related controls */
+ switch (ctrl->id) {
+ case V4L2_CID_VBLANK:
+ /* Update max exposure while meeting expected vblanking */
+ max = ov9281->cur_mode->height + ctrl->val - 4;
+ __v4l2_ctrl_modify_range(ov9281->exposure,
+ ov9281->exposure->minimum, max,
+ ov9281->exposure->step,
+ ov9281->exposure->default_value);
+ break;
+ }
+
+ if (pm_runtime_get(&client->dev) <= 0)
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_HFLIP:
+ ret = ov9281_set_ctrl_hflip(ov9281, ctrl->val);
+ break;
+ case V4L2_CID_VFLIP:
+ ret = ov9281_set_ctrl_vflip(ov9281, ctrl->val);
+ break;
+ case V4L2_CID_EXPOSURE:
+ /* 4 least significant bits of expsoure are fractional part */
+ ret = ov9281_write_reg(ov9281->client, OV9281_REG_EXPOSURE,
+ OV9281_REG_VALUE_24BIT, ctrl->val << 4);
+ break;
+ case V4L2_CID_ANALOGUE_GAIN:
+ ret = ov9281_write_reg(ov9281->client, OV9281_REG_GAIN_H,
+ OV9281_REG_VALUE_08BIT,
+ (ctrl->val >> OV9281_GAIN_H_SHIFT) &
+ OV9281_GAIN_H_MASK);
+ ret |= ov9281_write_reg(ov9281->client, OV9281_REG_GAIN_L,
+ OV9281_REG_VALUE_08BIT,
+ ctrl->val & OV9281_GAIN_L_MASK);
+ break;
+ case V4L2_CID_VBLANK:
+ ret = ov9281_write_reg(ov9281->client, OV9281_REG_VTS,
+ OV9281_REG_VALUE_16BIT,
+ ctrl->val + ov9281->cur_mode->height);
+ break;
+ case V4L2_CID_TEST_PATTERN:
+ ret = ov9281_enable_test_pattern(ov9281, ctrl->val);
+ break;
+ default:
+ dev_warn(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n",
+ __func__, ctrl->id, ctrl->val);
+ break;
+ }
+
+ pm_runtime_put(&client->dev);
+
+ return ret;
+}
+
+static const struct v4l2_ctrl_ops ov9281_ctrl_ops = {
+ .s_ctrl = ov9281_set_ctrl,
+};
+
+static int ov9281_initialize_controls(struct ov9281 *ov9281)
+{
+ struct v4l2_fwnode_device_properties props;
+ const struct ov9281_mode *mode;
+ struct v4l2_ctrl_handler *handler;
+ struct v4l2_ctrl *ctrl;
+ s64 exposure_max, vblank_def;
+ u32 h_blank;
+ int ret;
+
+ handler = &ov9281->ctrl_handler;
+ mode = ov9281->cur_mode;
+ ret = v4l2_ctrl_handler_init(handler, 11);
+ if (ret)
+ return ret;
+ handler->lock = &ov9281->mutex;
+
+ ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ,
+ 0, 0, link_freq_menu_items);
+ if (ctrl)
+ ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ ov9281->pixel_rate = v4l2_ctrl_new_std(handler, NULL,
+ V4L2_CID_PIXEL_RATE,
+ OV9281_PIXEL_RATE_10BIT,
+ OV9281_PIXEL_RATE_10BIT, 1,
+ OV9281_PIXEL_RATE_10BIT);
+
+ h_blank = mode->hts_def - mode->width;
+ ov9281->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
+ h_blank, h_blank, 1, h_blank);
+ if (ov9281->hblank)
+ ov9281->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ vblank_def = mode->vts_def - mode->height;
+ ov9281->vblank = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
+ V4L2_CID_VBLANK, vblank_def,
+ OV9281_VTS_MAX - mode->height, 1,
+ vblank_def);
+
+ exposure_max = mode->vts_def - 4;
+ ov9281->exposure = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
+ V4L2_CID_EXPOSURE,
+ OV9281_EXPOSURE_MIN, exposure_max,
+ OV9281_EXPOSURE_STEP,
+ mode->exp_def);
+
+ ov9281->anal_gain = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
+ V4L2_CID_ANALOGUE_GAIN,
+ OV9281_GAIN_MIN, OV9281_GAIN_MAX,
+ OV9281_GAIN_STEP,
+ OV9281_GAIN_DEFAULT);
+
+ ov9281->vflip = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
+ V4L2_CID_VFLIP,
+ 0, 1, 1, 0);
+
+ ov9281->hflip = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
+ V4L2_CID_HFLIP,
+ 0, 1, 1, 0);
+
+ ov9281->test_pattern =
+ v4l2_ctrl_new_std_menu_items(handler, &ov9281_ctrl_ops,
+ V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(ov9281_test_pattern_menu) - 1,
+ 0, 0, ov9281_test_pattern_menu);
+
+ if (handler->error) {
+ ret = handler->error;
+ dev_err(&ov9281->client->dev,
+ "Failed to init controls(%d)\n", ret);
+ goto err_free_handler;
+ }
+
+ ret = v4l2_fwnode_device_parse(&ov9281->client->dev, &props);
+ if (ret)
+ goto err_free_handler;
+
+ ret = v4l2_ctrl_new_fwnode_properties(handler, &ov9281_ctrl_ops,
+ &props);
+ if (ret)
+ goto err_free_handler;
+
+ ov9281->subdev.ctrl_handler = handler;
+
+ return 0;
+
+err_free_handler:
+ v4l2_ctrl_handler_free(handler);
+
+ return ret;
+}
+
+static int ov9281_check_sensor_id(struct ov9281 *ov9281,
+ struct i2c_client *client)
+{
+ struct device *dev = &ov9281->client->dev;
+ u32 id = 0, id_msb;
+ int ret;
+
+ ret = ov9281_read_reg(client, OV9281_REG_CHIP_ID + 1,
+ OV9281_REG_VALUE_08BIT, &id);
+ if (!ret)
+ ret = ov9281_read_reg(client, OV9281_REG_CHIP_ID,
+ OV9281_REG_VALUE_08BIT, &id_msb);
+ id |= (id_msb << 8);
+ if (ret || id != CHIP_ID) {
+ dev_err(dev, "Unexpected sensor id(%04x), ret(%d)\n", id, ret);
+ return -ENODEV;
+ }
+
+ dev_info(dev, "Detected OV%06x sensor\n", CHIP_ID);
+
+ return 0;
+}
+
+static int ov9281_configure_regulators(struct ov9281 *ov9281)
+{
+ unsigned int i;
+
+ for (i = 0; i < OV9281_NUM_SUPPLIES; i++)
+ ov9281->supplies[i].supply = ov9281_supply_names[i];
+
+ return devm_regulator_bulk_get(&ov9281->client->dev,
+ OV9281_NUM_SUPPLIES,
+ ov9281->supplies);
+}
+
+static int ov9281_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &client->dev;
+ struct ov9281 *ov9281;
+ struct v4l2_subdev *sd;
+ int ret;
+
+ ov9281 = devm_kzalloc(dev, sizeof(*ov9281), GFP_KERNEL);
+ if (!ov9281)
+ return -ENOMEM;
+
+ ov9281->client = client;
+ ov9281->cur_mode = &supported_modes[0];
+
+ ov9281->xvclk = devm_clk_get(dev, "xvclk");
+ if (IS_ERR(ov9281->xvclk)) {
+ dev_err(dev, "Failed to get xvclk\n");
+ return -EINVAL;
+ }
+
+ ov9281->reset_gpio = devm_gpiod_get_optional(dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(ov9281->reset_gpio))
+ dev_warn(dev, "Failed to get reset-gpios\n");
+
+ ov9281->pwdn_gpio = devm_gpiod_get_optional(dev, "pwdn", GPIOD_OUT_LOW);
+ if (IS_ERR(ov9281->pwdn_gpio))
+ dev_warn(dev, "Failed to get pwdn-gpios\n");
+
+ ret = ov9281_configure_regulators(ov9281);
+ if (ret) {
+ dev_err(dev, "Failed to get power regulators\n");
+ return ret;
+ }
+
+ mutex_init(&ov9281->mutex);
+
+ sd = &ov9281->subdev;
+ v4l2_i2c_subdev_init(sd, client, &ov9281_subdev_ops);
+ ret = ov9281_initialize_controls(ov9281);
+ if (ret)
+ goto err_destroy_mutex;
+
+ ret = __ov9281_power_on(ov9281);
+ if (ret)
+ goto err_free_handler;
+
+ ret = ov9281_check_sensor_id(ov9281, client);
+ if (ret)
+ goto err_power_off;
+
+ sd->internal_ops = &ov9281_internal_ops;
+ sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+
+ ov9281->pad.flags = MEDIA_PAD_FL_SOURCE;
+ sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
+ ret = media_entity_pads_init(&sd->entity, 1, &ov9281->pad);
+ if (ret < 0)
+ goto err_power_off;
+
+ ret = v4l2_async_register_subdev_sensor(sd);
+ if (ret) {
+ dev_err(dev, "v4l2 async register subdev failed\n");
+ goto err_clean_entity;
+ }
+
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
+ pm_runtime_idle(dev);
+
+ return 0;
+
+err_clean_entity:
+ media_entity_cleanup(&sd->entity);
+err_power_off:
+ __ov9281_power_off(ov9281);
+err_free_handler:
+ v4l2_ctrl_handler_free(&ov9281->ctrl_handler);
+err_destroy_mutex:
+ mutex_destroy(&ov9281->mutex);
+
+ return ret;
+}
+
+static void ov9281_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct ov9281 *ov9281 = to_ov9281(sd);
+
+ v4l2_async_unregister_subdev(sd);
+ media_entity_cleanup(&sd->entity);
+ v4l2_ctrl_handler_free(&ov9281->ctrl_handler);
+ mutex_destroy(&ov9281->mutex);
+
+ pm_runtime_disable(&client->dev);
+ if (!pm_runtime_status_suspended(&client->dev))
+ __ov9281_power_off(ov9281);
+ pm_runtime_set_suspended(&client->dev);
+}
+
+static const struct of_device_id ov9281_of_match[] = {
+ { .compatible = "ovti,ov9281" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ov9281_of_match);
+
+static const struct i2c_device_id ov9281_match_id[] = {
+ { "ovti,ov9281", 0 },
+ { },
+};
+
+static struct i2c_driver ov9281_i2c_driver = {
+ .driver = {
+ .name = OV9281_NAME,
+ .pm = &ov9281_pm_ops,
+ .of_match_table = of_match_ptr(ov9281_of_match),
+ },
+ .probe = &ov9281_probe,
+ .remove = &ov9281_remove,
+ .id_table = ov9281_match_id,
+};
+
+static int __init sensor_mod_init(void)
+{
+ return i2c_add_driver(&ov9281_i2c_driver);
+}
+
+static void __exit sensor_mod_exit(void)
+{
+ i2c_del_driver(&ov9281_i2c_driver);
+}
+
+device_initcall_sync(sensor_mod_init);
+module_exit(sensor_mod_exit);
+
+MODULE_DESCRIPTION("OmniVision ov9281 sensor driver");
+MODULE_LICENSE("GPL v2");
--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
+++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
@@ -443,7 +443,7 @@ struct unicam_device {
/* ptr to sub device */
struct v4l2_subdev *sensor;
/* Pad config for the sensor */
- struct v4l2_subdev_pad_config *sensor_config;
+ struct v4l2_subdev_state *sensor_state;
enum v4l2_mbus_type bus_type;
/*
@@ -594,7 +594,7 @@ static int __subdev_get_format(struct un
};
int ret;
- ret = v4l2_subdev_call(dev->sensor, pad, get_fmt, dev->sensor_config,
+ ret = v4l2_subdev_call(dev->sensor, pad, get_fmt, dev->sensor_state,
&sd_fmt);
if (ret < 0)
return ret;
@@ -618,7 +618,7 @@ static int __subdev_set_format(struct un
sd_fmt.format = *fmt;
- ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, dev->sensor_config,
+ ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, dev->sensor_state,
&sd_fmt);
if (ret < 0)
return ret;
@@ -1094,7 +1094,7 @@ static int unicam_try_fmt_vid_cap(struct
*/
mbus_fmt->field = V4L2_FIELD_NONE;
- ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, dev->sensor_config,
+ ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, dev->sensor_state,
&sd_fmt);
if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
return ret;
@@ -1116,7 +1116,7 @@ static int unicam_try_fmt_vid_cap(struct
mbus_fmt->code = fmt->code;
ret = v4l2_subdev_call(dev->sensor, pad, set_fmt,
- dev->sensor_config, &sd_fmt);
+ dev->sensor_state, &sd_fmt);
if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
return ret;
@@ -2320,8 +2320,8 @@ static void unicam_release(struct kref *
v4l2_ctrl_handler_free(&unicam->ctrl_handler);
media_device_cleanup(&unicam->mdev);
- if (unicam->sensor_config)
- v4l2_subdev_free_pad_config(unicam->sensor_config);
+ if (unicam->sensor_state)
+ __v4l2_subdev_state_free(unicam->sensor_state);
kfree(unicam);
}
@@ -2579,12 +2579,14 @@ static void unregister_nodes(struct unic
static int unicam_probe_complete(struct unicam_device *unicam)
{
+ static struct lock_class_key key;
int ret;
unicam->v4l2_dev.notify = unicam_notify;
- unicam->sensor_config = v4l2_subdev_alloc_pad_config(unicam->sensor);
- if (!unicam->sensor_config)
+ unicam->sensor_state = __v4l2_subdev_state_alloc(unicam->sensor,
+ "unicam:async->lock", &key);
+ if (!unicam->sensor_state)
return -ENOMEM;
unicam->sensor_embedded_data = (unicam->sensor->entity.num_pads >= 2);
--- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
+++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
@@ -1465,7 +1465,7 @@ queue_cleanup:
}
/* Unregister one of the /dev/video<N> nodes associated with the ISP. */
-static void unregister_node(struct bcm2835_isp_node *node)
+static void bcm2835_unregister_node(struct bcm2835_isp_node *node)
{
struct bcm2835_isp_dev *dev = node_get_dev(node);
@@ -1668,7 +1668,7 @@ static int bcm2835_isp_remove(struct pla
media_controller_unregister(dev);
for (i = 0; i < BCM2835_ISP_NUM_NODES; i++)
- unregister_node(&dev->node[i]);
+ bcm2835_unregister_node(&dev->node[i]);
v4l2_device_unregister(&dev->v4l2_dev);
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