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Mon, 08 Jan 2018 05:36:20 -0800 (PST) Received: from SHUNQIAN-W530.example.org ([103.29.142.67]) by smtp.gmail.com with ESMTPSA id m69sm11682817pfc.36.2018.01.08.05.36.17 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 08 Jan 2018 05:36:20 -0800 (PST) From: Shunqian Zheng To: mchehab@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com Cc: linux-media@vger.kernel.org, devicetree@vger.kernel.org, ddl@rock-chips.com, tfiga@chromium.org, Shunqian Zheng Subject: [PATCH v3 1/4] media: ov5695: add support for OV5695 sensor Date: Mon, 8 Jan 2018 21:36:04 +0800 Message-Id: <1515418567-14406-1-git-send-email-zhengsq@rock-chips.com> X-Mailer: git-send-email 1.9.1 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds driver for Omnivision's ov5695 sensor, the driver supports following features: - supported resolutions + 2592x1944 at 30fps + 1920x1080 at 30fps + 1296x972 at 60fps + 1280x720 at 30fps + 640x480 at 120fps - test patterns - manual exposure/gain(analog and digital) control - vblank and hblank - media controller - runtime pm Signed-off-by: Shunqian Zheng --- drivers/media/i2c/Kconfig | 11 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/ov5695.c | 1392 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 1404 insertions(+) create mode 100644 drivers/media/i2c/ov5695.c diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 3c6d642..55b37c8 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -645,6 +645,17 @@ config VIDEO_OV5670 To compile this driver as a module, choose M here: the module will be called ov5670. +config VIDEO_OV5695 + tristate "OmniVision OV5695 sensor support" + depends on I2C && VIDEO_V4L2 + depends on MEDIA_CAMERA_SUPPORT + ---help--- + This is a Video4Linux2 sensor-level driver for the OmniVision + OV5695 camera. + + To compile this driver as a module, choose M here: the + module will be called ov5695. + config VIDEO_OV7640 tristate "OmniVision OV7640 sensor support" depends on I2C && VIDEO_V4L2 diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 548a9ef..a063030 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -65,6 +65,7 @@ obj-$(CONFIG_VIDEO_OV5640) += ov5640.o obj-$(CONFIG_VIDEO_OV5645) += ov5645.o obj-$(CONFIG_VIDEO_OV5647) += ov5647.o obj-$(CONFIG_VIDEO_OV5670) += ov5670.o +obj-$(CONFIG_VIDEO_OV5695) += ov5695.o obj-$(CONFIG_VIDEO_OV6650) += ov6650.o obj-$(CONFIG_VIDEO_OV7640) += ov7640.o obj-$(CONFIG_VIDEO_OV7670) += ov7670.o diff --git a/drivers/media/i2c/ov5695.c b/drivers/media/i2c/ov5695.c new file mode 100644 index 0000000..7e8bd82 --- /dev/null +++ b/drivers/media/i2c/ov5695.c @@ -0,0 +1,1392 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * ov5695 driver + * + * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifndef V4L2_CID_DIGITAL_GAIN +#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN +#endif + +/* 45Mhz * 4 Binning */ +#define OV5695_PIXEL_RATE (45 * 1000 * 1000 * 4) +#define CHIP_ID 0x005695 +#define OV5695_REG_CHIP_ID 0x300a + +#define OV5695_REG_CTRL_MODE 0x0100 +#define OV5695_MODE_SW_STANDBY 0x0 +#define OV5695_MODE_STREAMING BIT(0) + +#define OV5695_REG_EXPOSURE 0x3500 +#define OV5695_EXPOSURE_MIN 4 +#define OV5695_EXPOSURE_STEP 1 +#define OV5695_VTS_MAX 0x7fff + +#define OV5695_REG_ANALOG_GAIN 0x3509 +#define ANALOG_GAIN_MIN 0x10 +#define ANALOG_GAIN_MAX 0xf8 +#define ANALOG_GAIN_STEP 1 +#define ANALOG_GAIN_DEFAULT 0xf8 + +#define OV5695_REG_DIGI_GAIN_H 0x350a +#define OV5695_REG_DIGI_GAIN_L 0x350b +#define OV5695_DIGI_GAIN_L_MASK 0x3f +#define OV5695_DIGI_GAIN_H_SHIFT 6 +#define OV5695_DIGI_GAIN_MIN 0 +#define OV5695_DIGI_GAIN_MAX (0x4000 - 1) +#define OV5695_DIGI_GAIN_STEP 1 +#define OV5695_DIGI_GAIN_DEFAULT 1024 + +#define OV5695_REG_TEST_PATTERN 0x4503 +#define OV5695_TEST_PATTERN_ENABLE 0x80 +#define OV5695_TEST_PATTERN_DISABLE 0x0 + +#define OV5695_REG_VTS 0x380e + +#define REG_NULL 0xFFFF + +#define OV5695_REG_VALUE_08BIT 1 +#define OV5695_REG_VALUE_16BIT 2 +#define OV5695_REG_VALUE_24BIT 3 + +#define OV5695_LANES 2 +#define OV5695_BITS_PER_SAMPLE 10 + +struct regval { + u16 addr; + u8 val; +}; + +struct ov5695_mode { + u32 width; + u32 height; + u32 max_fps; + u32 hts_def; + u32 vts_def; + u32 exp_def; + const struct regval *reg_list; +}; + +struct ov5695 { + struct i2c_client *client; + struct clk *xvclk; + struct regulator *avdd_regulator; + struct regulator *dovdd_regulator; + struct regulator *dvdd_regulator; + struct gpio_desc *reset_gpio; + + 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 *test_pattern; + struct mutex mutex; + bool streaming; + const struct ov5695_mode *cur_mode; +}; + +#define to_ov5695(sd) container_of(sd, struct ov5695, subdev) + +/* + * Xclk 24Mhz + * Pclk 45Mhz + * linelength 672(0x2a0) + * framelength 2232(0x8b8) + * grabwindow_width 1296 + * grabwindow_height 972 + * max_framerate 30fps + * mipi_datarate per lane 840Mbps + */ +static const struct regval ov5695_global_regs[] = { + {0x0103, 0x01}, + {0x0100, 0x00}, + {0x0300, 0x04}, + {0x0301, 0x00}, + {0x0302, 0x69}, + {0x0303, 0x00}, + {0x0304, 0x00}, + {0x0305, 0x01}, + {0x0307, 0x00}, + {0x030b, 0x00}, + {0x030c, 0x00}, + {0x030d, 0x1e}, + {0x030e, 0x04}, + {0x030f, 0x03}, + {0x0312, 0x01}, + {0x3000, 0x00}, + {0x3002, 0xa1}, + {0x0308, 0x00}, + {0x0310, 0x00}, + {0x3022, 0x51}, + {0x3106, 0x15}, + {0x3107, 0x01}, + {0x3108, 0x05}, + {0x3500, 0x00}, + {0x3501, 0x45}, + {0x3502, 0x00}, + {0x3503, 0x08}, + {0x3504, 0x03}, + {0x3505, 0x8c}, + {0x3507, 0x03}, + {0x3508, 0x00}, + {0x3509, 0x10}, + {0x350c, 0x00}, + {0x350d, 0x80}, + {0x3510, 0x00}, + {0x3511, 0x02}, + {0x3512, 0x00}, + {0x3601, 0x55}, + {0x3602, 0x58}, + {0x3614, 0x30}, + {0x3615, 0x77}, + {0x3621, 0x08}, + {0x3624, 0x40}, + {0x3633, 0x0c}, + {0x3634, 0x0c}, + {0x3635, 0x0c}, + {0x3636, 0x0c}, + {0x3638, 0x00}, + {0x3639, 0x00}, + {0x363a, 0x00}, + {0x363b, 0x00}, + {0x363c, 0xff}, + {0x363d, 0xfa}, + {0x3650, 0x44}, + {0x3651, 0x44}, + {0x3652, 0x44}, + {0x3653, 0x44}, + {0x3654, 0x44}, + {0x3655, 0x44}, + {0x3656, 0x44}, + {0x3657, 0x44}, + {0x3660, 0x00}, + {0x3661, 0x00}, + {0x3662, 0x00}, + {0x366a, 0x00}, + {0x366e, 0x0c}, + {0x3673, 0x04}, + {0x3700, 0x14}, + {0x3703, 0x0c}, + {0x3715, 0x01}, + {0x3733, 0x10}, + {0x3734, 0x40}, + {0x373f, 0xa0}, + {0x3765, 0x20}, + {0x37a1, 0x1d}, + {0x37a8, 0x26}, + {0x37ab, 0x14}, + {0x37c2, 0x04}, + {0x37cb, 0x09}, + {0x37cc, 0x13}, + {0x37cd, 0x1f}, + {0x37ce, 0x1f}, + {0x3800, 0x00}, + {0x3801, 0x00}, + {0x3802, 0x00}, + {0x3803, 0x00}, + {0x3804, 0x0a}, + {0x3805, 0x3f}, + {0x3806, 0x07}, + {0x3807, 0xaf}, + {0x3808, 0x05}, + {0x3809, 0x10}, + {0x380a, 0x03}, + {0x380b, 0xcc}, + {0x380c, 0x02}, + {0x380d, 0xa0}, + {0x380e, 0x08}, + {0x380f, 0xb8}, + {0x3810, 0x00}, + {0x3811, 0x06}, + {0x3812, 0x00}, + {0x3813, 0x06}, + {0x3814, 0x03}, + {0x3815, 0x01}, + {0x3816, 0x03}, + {0x3817, 0x01}, + {0x3818, 0x00}, + {0x3819, 0x00}, + {0x381a, 0x00}, + {0x381b, 0x01}, + {0x3820, 0x8b}, + {0x3821, 0x01}, + {0x3c80, 0x08}, + {0x3c82, 0x00}, + {0x3c83, 0x00}, + {0x3c88, 0x00}, + {0x3d85, 0x14}, + {0x3f02, 0x08}, + {0x3f03, 0x10}, + {0x4008, 0x02}, + {0x4009, 0x09}, + {0x404e, 0x20}, + {0x4501, 0x00}, + {0x4502, 0x10}, + {0x4800, 0x00}, + {0x481f, 0x2a}, + {0x4837, 0x13}, + {0x5000, 0x17}, + {0x5780, 0x3e}, + {0x5781, 0x0f}, + {0x5782, 0x44}, + {0x5783, 0x02}, + {0x5784, 0x01}, + {0x5785, 0x01}, + {0x5786, 0x00}, + {0x5787, 0x04}, + {0x5788, 0x02}, + {0x5789, 0x0f}, + {0x578a, 0xfd}, + {0x578b, 0xf5}, + {0x578c, 0xf5}, + {0x578d, 0x03}, + {0x578e, 0x08}, + {0x578f, 0x0c}, + {0x5790, 0x08}, + {0x5791, 0x06}, + {0x5792, 0x00}, + {0x5793, 0x52}, + {0x5794, 0xa3}, + {0x5b00, 0x00}, + {0x5b01, 0x1c}, + {0x5b02, 0x00}, + {0x5b03, 0x7f}, + {0x5b05, 0x6c}, + {0x5e10, 0xfc}, + {0x4010, 0xf1}, + {0x3503, 0x08}, + {0x3505, 0x8c}, + {0x3507, 0x03}, + {0x3508, 0x00}, + {0x3509, 0xf8}, + {REG_NULL, 0x00}, +}; + +/* + * Xclk 24Mhz + * Pclk 45Mhz + * linelength 740(0x2e4) + * framelength 2024(0x7e8) + * grabwindow_width 2592 + * grabwindow_height 1944 + * max_framerate 30fps + * mipi_datarate per lane 840Mbps + */ +static const struct regval ov5695_2592x1944_regs[] = { + {0x3501, 0x7e}, + {0x366e, 0x18}, + {0x3800, 0x00}, + {0x3801, 0x00}, + {0x3802, 0x00}, + {0x3803, 0x04}, + {0x3804, 0x0a}, + {0x3805, 0x3f}, + {0x3806, 0x07}, + {0x3807, 0xab}, + {0x3808, 0x0a}, + {0x3809, 0x20}, + {0x380a, 0x07}, + {0x380b, 0x98}, + {0x380c, 0x02}, + {0x380d, 0xe4}, + {0x380e, 0x07}, + {0x380f, 0xe8}, + {0x3811, 0x06}, + {0x3813, 0x08}, + {0x3814, 0x01}, + {0x3816, 0x01}, + {0x3817, 0x01}, + {0x3820, 0x88}, + {0x3821, 0x00}, + {0x4501, 0x00}, + {0x4008, 0x04}, + {0x4009, 0x13}, + {REG_NULL, 0x00}, +}; + +/* + * Xclk 24Mhz + * Pclk 45Mhz + * linelength 672(0x2a0) + * framelength 2232(0x8b8) + * grabwindow_width 1920 + * grabwindow_height 1080 + * max_framerate 30fps + * mipi_datarate per lane 840Mbps + */ +static const struct regval ov5695_1920x1080_regs[] = { + {0x3501, 0x45}, + {0x366e, 0x18}, + {0x3800, 0x01}, + {0x3801, 0x50}, + {0x3802, 0x01}, + {0x3803, 0xb8}, + {0x3804, 0x08}, + {0x3805, 0xef}, + {0x3806, 0x05}, + {0x3807, 0xf7}, + {0x3808, 0x07}, + {0x3809, 0x80}, + {0x380a, 0x04}, + {0x380b, 0x38}, + {0x380c, 0x02}, + {0x380d, 0xa0}, + {0x380e, 0x08}, + {0x380f, 0xb8}, + {0x3811, 0x06}, + {0x3813, 0x04}, + {0x3814, 0x01}, + {0x3816, 0x01}, + {0x3817, 0x01}, + {0x3820, 0x88}, + {0x3821, 0x00}, + {0x4501, 0x00}, + {0x4008, 0x04}, + {0x4009, 0x13}, + {REG_NULL, 0x00} +}; + +/* + * Xclk 24Mhz + * Pclk 45Mhz + * linelength 740(0x02e4) + * framelength 1012(0x03f4) + * grabwindow_width 1296 + * grabwindow_height 972 + * max_framerate 60fps + * mipi_datarate per lane 840Mbps + */ +static const struct regval ov5695_1296x972_regs[] = { + {0x0103, 0x01}, + {0x0100, 0x00}, + {0x0300, 0x04}, + {0x0301, 0x00}, + {0x0302, 0x69}, + {0x0303, 0x00}, + {0x0304, 0x00}, + {0x0305, 0x01}, + {0x0307, 0x00}, + {0x030b, 0x00}, + {0x030c, 0x00}, + {0x030d, 0x1e}, + {0x030e, 0x04}, + {0x030f, 0x03}, + {0x0312, 0x01}, + {0x3000, 0x00}, + {0x3002, 0x21}, + {0x3016, 0x32}, + {0x3022, 0x51}, + {0x3106, 0x15}, + {0x3107, 0x01}, + {0x3108, 0x05}, + {0x3500, 0x00}, + {0x3501, 0x3e}, + {0x3502, 0x00}, + {0x3503, 0x08}, + {0x3504, 0x03}, + {0x3505, 0x8c}, + {0x3507, 0x03}, + {0x3508, 0x00}, + {0x3509, 0x10}, + {0x350c, 0x00}, + {0x350d, 0x80}, + {0x3510, 0x00}, + {0x3511, 0x02}, + {0x3512, 0x00}, + {0x3601, 0x55}, + {0x3602, 0x58}, + {0x3611, 0x58}, + {0x3614, 0x30}, + {0x3615, 0x77}, + {0x3621, 0x08}, + {0x3624, 0x40}, + {0x3633, 0x0c}, + {0x3634, 0x0c}, + {0x3635, 0x0c}, + {0x3636, 0x0c}, + {0x3638, 0x00}, + {0x3639, 0x00}, + {0x363a, 0x00}, + {0x363b, 0x00}, + {0x363c, 0xff}, + {0x363d, 0xfa}, + {0x3650, 0x44}, + {0x3651, 0x44}, + {0x3652, 0x44}, + {0x3653, 0x44}, + {0x3654, 0x44}, + {0x3655, 0x44}, + {0x3656, 0x44}, + {0x3657, 0x44}, + {0x3660, 0x00}, + {0x3661, 0x00}, + {0x3662, 0x00}, + {0x366a, 0x00}, + {0x366e, 0x0c}, + {0x3673, 0x04}, + {0x3700, 0x14}, + {0x3703, 0x0c}, + {0x3706, 0x24}, + {0x3714, 0x27}, + {0x3715, 0x01}, + {0x3716, 0x00}, + {0x3717, 0x02}, + {0x3733, 0x10}, + {0x3734, 0x40}, + {0x373f, 0xa0}, + {0x3765, 0x20}, + {0x37a1, 0x1d}, + {0x37a8, 0x26}, + {0x37ab, 0x14}, + {0x37c2, 0x04}, + {0x37c3, 0xf0}, + {0x37cb, 0x09}, + {0x37cc, 0x13}, + {0x37cd, 0x1f}, + {0x37ce, 0x1f}, + {0x3800, 0x00}, + {0x3801, 0x00}, + {0x3802, 0x00}, + {0x3803, 0x00}, + {0x3804, 0x0a}, + {0x3805, 0x3f}, + {0x3806, 0x07}, + {0x3807, 0xaf}, + {0x3808, 0x05}, + {0x3809, 0x10}, + {0x380a, 0x03}, + {0x380b, 0xcc}, + {0x380c, 0x02}, + {0x380d, 0xe4}, + {0x380e, 0x03}, + {0x380f, 0xf4}, + {0x3810, 0x00}, + {0x3811, 0x00}, + {0x3812, 0x00}, + {0x3813, 0x06}, + {0x3814, 0x03}, + {0x3815, 0x01}, + {0x3816, 0x03}, + {0x3817, 0x01}, + {0x3818, 0x00}, + {0x3819, 0x00}, + {0x381a, 0x00}, + {0x381b, 0x01}, + {0x3820, 0x8b}, + {0x3821, 0x01}, + {0x3c80, 0x08}, + {0x3c82, 0x00}, + {0x3c83, 0x00}, + {0x3c88, 0x00}, + {0x3d85, 0x14}, + {0x3f02, 0x08}, + {0x3f03, 0x10}, + {0x4008, 0x02}, + {0x4009, 0x09}, + {0x404e, 0x20}, + {0x4501, 0x00}, + {0x4502, 0x10}, + {0x4800, 0x00}, + {0x481f, 0x2a}, + {0x4837, 0x13}, + {0x5000, 0x13}, + {0x5780, 0x3e}, + {0x5781, 0x0f}, + {0x5782, 0x44}, + {0x5783, 0x02}, + {0x5784, 0x01}, + {0x5785, 0x01}, + {0x5786, 0x00}, + {0x5787, 0x04}, + {0x5788, 0x02}, + {0x5789, 0x0f}, + {0x578a, 0xfd}, + {0x578b, 0xf5}, + {0x578c, 0xf5}, + {0x578d, 0x03}, + {0x578e, 0x08}, + {0x578f, 0x0c}, + {0x5790, 0x08}, + {0x5791, 0x06}, + {0x5792, 0x00}, + {0x5793, 0x52}, + {0x5794, 0xa3}, + {0x5b00, 0x00}, + {0x5b01, 0x1c}, + {0x5b02, 0x00}, + {0x5b03, 0x7f}, + {0x5b05, 0x6c}, + {0x5e10, 0xfc}, + {0x4010, 0xf1}, + {0x3503, 0x08}, + {0x3505, 0x8c}, + {0x3507, 0x03}, + {0x3508, 0x00}, + {0x3509, 0xf8}, + {0x0100, 0x01}, + {REG_NULL, 0x00} +}; + +/* + * Xclk 24Mhz + * Pclk 45Mhz + * linelength 672(0x2a0) + * framelength 2232(0x8b8) + * grabwindow_width 1280 + * grabwindow_height 720 + * max_framerate 30fps + * mipi_datarate per lane 840Mbps + */ +static const struct regval ov5695_1280x720_regs[] = { + {0x3501, 0x45}, + {0x366e, 0x0c}, + {0x3800, 0x00}, + {0x3801, 0x00}, + {0x3802, 0x01}, + {0x3803, 0x00}, + {0x3804, 0x0a}, + {0x3805, 0x3f}, + {0x3806, 0x06}, + {0x3807, 0xaf}, + {0x3808, 0x05}, + {0x3809, 0x00}, + {0x380a, 0x02}, + {0x380b, 0xd0}, + {0x380c, 0x02}, + {0x380d, 0xa0}, + {0x380e, 0x08}, + {0x380f, 0xb8}, + {0x3811, 0x06}, + {0x3813, 0x02}, + {0x3814, 0x03}, + {0x3816, 0x03}, + {0x3817, 0x01}, + {0x3820, 0x8b}, + {0x3821, 0x01}, + {0x4501, 0x00}, + {0x4008, 0x02}, + {0x4009, 0x09}, + {REG_NULL, 0x00} +}; + +/* + * Xclk 24Mhz + * Pclk 45Mhz + * linelength 672(0x2a0) + * framelength 558(0x22e) + * grabwindow_width 640 + * grabwindow_height 480 + * max_framerate 120fps + * mipi_datarate per lane 840Mbps + */ +static const struct regval ov5695_640x480_regs[] = { + {0x3501, 0x22}, + {0x366e, 0x0c}, + {0x3800, 0x00}, + {0x3801, 0x00}, + {0x3802, 0x00}, + {0x3803, 0x08}, + {0x3804, 0x0a}, + {0x3805, 0x3f}, + {0x3806, 0x07}, + {0x3807, 0xa7}, + {0x3808, 0x02}, + {0x3809, 0x80}, + {0x380a, 0x01}, + {0x380b, 0xe0}, + {0x380c, 0x02}, + {0x380d, 0xa0}, + {0x380e, 0x02}, + {0x380f, 0x2e}, + {0x3811, 0x06}, + {0x3813, 0x04}, + {0x3814, 0x07}, + {0x3816, 0x05}, + {0x3817, 0x03}, + {0x3820, 0x8d}, + {0x3821, 0x01}, + {0x4501, 0x00}, + {0x4008, 0x02}, + {0x4009, 0x09}, + {REG_NULL, 0x00} +}; + +static const struct ov5695_mode supported_modes[] = { + { + .width = 2592, + .height = 1944, + .max_fps = 30, + .exp_def = 0x0450, + .hts_def = 0x02e4 * 4, + .vts_def = 0x07e8, + .reg_list = ov5695_2592x1944_regs, + }, + { + .width = 1920, + .height = 1080, + .max_fps = 30, + .exp_def = 0x0450, + .hts_def = 0x02a0 * 4, + .vts_def = 0x08b8, + .reg_list = ov5695_1920x1080_regs, + }, + { + .width = 1296, + .height = 972, + .max_fps = 60, + .exp_def = 0x03e0, + .hts_def = 0x02e4 * 4, + .vts_def = 0x03f4, + .reg_list = ov5695_1296x972_regs, + }, + { + .width = 1280, + .height = 720, + .max_fps = 30, + .exp_def = 0x0450, + .hts_def = 0x02a0 * 4, + .vts_def = 0x08b8, + .reg_list = ov5695_1280x720_regs, + }, + { + .width = 640, + .height = 480, + .max_fps = 120, + .exp_def = 0x0450, + .hts_def = 0x02a0 * 4, + .vts_def = 0x022e, + .reg_list = ov5695_640x480_regs, + }, +}; + +#define OV5695_LINK_FREQ_420MHZ 420000000 +static const s64 link_freq_menu_items[] = { + OV5695_LINK_FREQ_420MHZ +}; + +static const char * const ov5695_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 ov5695_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 ov5695_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 = ov5695_write_reg(client, regs[i].addr, + OV5695_REG_VALUE_08BIT, regs[i].val); + + return ret; +} + +/* Read registers up to 4 at a time */ +static int ov5695_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) + 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 *)®_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 ov5695_get_reso_dist(const struct ov5695_mode *mode, + struct v4l2_mbus_framefmt *framefmt) +{ + return abs(mode->width - framefmt->width) + + abs(mode->height - framefmt->height); +} + +static const struct ov5695_mode * +ov5695_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; + int i; + + for (i = 0; i < ARRAY_SIZE(supported_modes); i++) { + dist = ov5695_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 ov5695_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct ov5695 *ov5695 = to_ov5695(sd); + const struct ov5695_mode *mode; + s64 h_blank, vblank_def; + + mutex_lock(&ov5695->mutex); + + mode = ov5695_find_best_fit(fmt); + fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10; + fmt->format.width = mode->width; + fmt->format.height = mode->height; + fmt->format.field = V4L2_FIELD_NONE; + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API + *v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format; +#else + mutex_unlock(&ov5695->mutex); + return -ENOTTY; +#endif + } else { + ov5695->cur_mode = mode; + h_blank = mode->hts_def - mode->width; + __v4l2_ctrl_modify_range(ov5695->hblank, h_blank, + h_blank, 1, h_blank); + vblank_def = mode->vts_def - mode->height; + __v4l2_ctrl_modify_range(ov5695->vblank, vblank_def, + OV5695_VTS_MAX - mode->height, + 1, vblank_def); + } + + mutex_unlock(&ov5695->mutex); + + return 0; +} + +static int ov5695_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct ov5695 *ov5695 = to_ov5695(sd); + const struct ov5695_mode *mode = ov5695->cur_mode; + + mutex_lock(&ov5695->mutex); + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API + fmt->format = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad); +#else + mutex_unlock(&ov5695->mutex); + return -ENOTTY; +#endif + } else { + fmt->format.width = mode->width; + fmt->format.height = mode->height; + fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10; + fmt->format.field = V4L2_FIELD_NONE; + } + mutex_unlock(&ov5695->mutex); + + return 0; +} + +static int ov5695_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->index != 0) + return -EINVAL; + code->code = MEDIA_BUS_FMT_SBGGR10_1X10; + + return 0; +} + +static int ov5695_enum_frame_sizes(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_frame_size_enum *fse) +{ + if (fse->index > ARRAY_SIZE(supported_modes)) + return -EINVAL; + + if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10) + 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 ov5695_enable_test_pattern(struct ov5695 *ov5695, u32 pattern) +{ + u32 val; + + if (pattern) + val = (pattern - 1) | OV5695_TEST_PATTERN_ENABLE; + else + val = OV5695_TEST_PATTERN_DISABLE; + + return ov5695_write_reg(ov5695->client, OV5695_REG_TEST_PATTERN, + OV5695_REG_VALUE_08BIT, val); +} + +static int __ov5695_start_stream(struct ov5695 *ov5695) +{ + int ret; + + ret = ov5695_write_array(ov5695->client, ov5695_global_regs); + if (ret) + return ret; + ret = ov5695_write_array(ov5695->client, ov5695->cur_mode->reg_list); + if (ret) + return ret; + + /* In case these controls are set before streaming */ + ret = __v4l2_ctrl_handler_setup(&ov5695->ctrl_handler); + if (ret) + return ret; + + return ov5695_write_reg(ov5695->client, OV5695_REG_CTRL_MODE, + OV5695_REG_VALUE_08BIT, OV5695_MODE_STREAMING); +} + +static int __ov5695_stop_stream(struct ov5695 *ov5695) +{ + return ov5695_write_reg(ov5695->client, OV5695_REG_CTRL_MODE, + OV5695_REG_VALUE_08BIT, OV5695_MODE_SW_STANDBY); +} + +static int ov5695_s_stream(struct v4l2_subdev *sd, int on) +{ + struct ov5695 *ov5695 = to_ov5695(sd); + struct i2c_client *client = ov5695->client; + int ret = 0; + + mutex_lock(&ov5695->mutex); + on = !!on; + if (on == ov5695->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 = __ov5695_start_stream(ov5695); + if (ret) { + v4l2_err(sd, "start stream failed while write regs\n"); + pm_runtime_put(&client->dev); + goto unlock_and_return; + } + } else { + __ov5695_stop_stream(ov5695); + ret = pm_runtime_put(&client->dev); + } + + ov5695->streaming = on; + +unlock_and_return: + mutex_unlock(&ov5695->mutex); + + return ret; +} + +/* Calculate the delay in us by clock rate and clock cycles */ +static inline u32 ov5695_cal_delay(struct ov5695 *ov5695, u32 cycles) +{ + return DIV_ROUND_UP(cycles, clk_get_rate(ov5695->xvclk) / 1000 / 1000); +} + +static int __ov5695_power_on(struct ov5695 *ov5695) +{ + int ret; + u32 delay_us; + struct device *dev = &ov5695->client->dev; + + ret = clk_prepare_enable(ov5695->xvclk); + if (ret < 0) { + dev_err(dev, "Failed to enable xvclk\n"); + return ret; + } + + gpiod_set_value_cansleep(ov5695->reset_gpio, 1); + + /* AVDD and DOVDD may rise in any order */ + ret = regulator_enable(ov5695->avdd_regulator); + if (ret < 0) { + dev_err(dev, "Failed to enable regulator\n"); + goto disable_clk; + } + ret = regulator_enable(ov5695->dovdd_regulator); + if (ret < 0) { + dev_err(dev, "Failed to enable DOVDD regulator\n"); + goto disable_avdd; + } + /* DVDD must rise after AVDD and DOVDD */ + ret = regulator_enable(ov5695->dvdd_regulator); + if (ret < 0) { + dev_err(dev, "Failed to enable DVDD regulator\n"); + goto disable_dovdd; + } + + gpiod_set_value_cansleep(ov5695->reset_gpio, 0); + /* 8192 cycles prior to first SCCB transaction */ + delay_us = ov5695_cal_delay(ov5695, 8192); + usleep_range(delay_us, delay_us * 2); + + return 0; + +disable_dovdd: + regulator_disable(ov5695->dovdd_regulator); +disable_avdd: + regulator_disable(ov5695->avdd_regulator); +disable_clk: + clk_disable_unprepare(ov5695->xvclk); + + return ret; +} + +static void __ov5695_power_off(struct ov5695 *ov5695) +{ + clk_disable_unprepare(ov5695->xvclk); + gpiod_set_value_cansleep(ov5695->reset_gpio, 1); + regulator_disable(ov5695->dvdd_regulator); + regulator_disable(ov5695->dovdd_regulator); + regulator_disable(ov5695->avdd_regulator); +} + +static int ov5695_runtime_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct ov5695 *ov5695 = to_ov5695(sd); + + return __ov5695_power_on(ov5695); +} + +static int ov5695_runtime_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct ov5695 *ov5695 = to_ov5695(sd); + + __ov5695_power_off(ov5695); + + return 0; +} + +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API +static int ov5695_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +{ + struct ov5695 *ov5695 = to_ov5695(sd); + struct v4l2_mbus_framefmt *try_fmt = + v4l2_subdev_get_try_format(sd, fh->pad, 0); + + mutex_lock(&ov5695->mutex); + /* Initialize try_fmt */ + try_fmt->width = ov5695->cur_mode->width; + try_fmt->height = ov5695->cur_mode->height; + try_fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10; + try_fmt->field = V4L2_FIELD_NONE; + + mutex_unlock(&ov5695->mutex); + /* No crop or compose */ + + return 0; +} +#endif + +static const struct dev_pm_ops ov5695_pm_ops = { + SET_RUNTIME_PM_OPS(ov5695_runtime_suspend, + ov5695_runtime_resume, NULL) +}; + +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API +static const struct v4l2_subdev_internal_ops ov5695_internal_ops = { + .open = ov5695_open, +}; +#endif + +static const struct v4l2_subdev_video_ops ov5695_video_ops = { + .s_stream = ov5695_s_stream, +}; + +static const struct v4l2_subdev_pad_ops ov5695_pad_ops = { + .enum_mbus_code = ov5695_enum_mbus_code, + .enum_frame_size = ov5695_enum_frame_sizes, + .get_fmt = ov5695_get_fmt, + .set_fmt = ov5695_set_fmt, +}; + +static const struct v4l2_subdev_ops ov5695_subdev_ops = { + .video = &ov5695_video_ops, + .pad = &ov5695_pad_ops, +}; + +static int ov5695_set_ctrl(struct v4l2_ctrl *ctrl) +{ + struct ov5695 *ov5695 = container_of(ctrl->handler, + struct ov5695, ctrl_handler); + struct i2c_client *client = ov5695->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 = ov5695->cur_mode->height + ctrl->val - 4; + __v4l2_ctrl_modify_range(ov5695->exposure, + ov5695->exposure->minimum, max, + ov5695->exposure->step, + ov5695->exposure->default_value); + break; + } + + if (pm_runtime_get_if_in_use(&client->dev) <= 0) + return 0; + + switch (ctrl->id) { + case V4L2_CID_EXPOSURE: + /* 4 least significant bits of expsoure are fractional part */ + ret = ov5695_write_reg(ov5695->client, OV5695_REG_EXPOSURE, + OV5695_REG_VALUE_24BIT, ctrl->val << 4); + break; + case V4L2_CID_ANALOGUE_GAIN: + ret = ov5695_write_reg(ov5695->client, OV5695_REG_ANALOG_GAIN, + OV5695_REG_VALUE_08BIT, ctrl->val); + break; + case V4L2_CID_DIGITAL_GAIN: + ret = ov5695_write_reg(ov5695->client, OV5695_REG_DIGI_GAIN_L, + OV5695_REG_VALUE_08BIT, + ctrl->val & OV5695_DIGI_GAIN_L_MASK); + ret = ov5695_write_reg(ov5695->client, OV5695_REG_DIGI_GAIN_H, + OV5695_REG_VALUE_08BIT, + ctrl->val >> OV5695_DIGI_GAIN_H_SHIFT); + break; + case V4L2_CID_VBLANK: + ret = ov5695_write_reg(ov5695->client, OV5695_REG_VTS, + OV5695_REG_VALUE_16BIT, + ctrl->val + ov5695->cur_mode->height); + break; + case V4L2_CID_TEST_PATTERN: + ret = ov5695_enable_test_pattern(ov5695, 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 ov5695_ctrl_ops = { + .s_ctrl = ov5695_set_ctrl, +}; + +static int ov5695_initialize_controls(struct ov5695 *ov5695) +{ + const struct ov5695_mode *mode; + struct v4l2_ctrl_handler *handler; + struct v4l2_ctrl *ctrl; + s64 exposure_max, vblank_def; + u32 h_blank; + int ret; + + handler = &ov5695->ctrl_handler; + mode = ov5695->cur_mode; + ret = v4l2_ctrl_handler_init(handler, 8); + if (ret) + return ret; + handler->lock = &ov5695->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; + + v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, + 0, OV5695_PIXEL_RATE, 1, OV5695_PIXEL_RATE); + + h_blank = mode->hts_def - mode->width; + ov5695->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK, + h_blank, h_blank, 1, h_blank); + if (ov5695->hblank) + ov5695->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + vblank_def = mode->vts_def - mode->height; + ov5695->vblank = v4l2_ctrl_new_std(handler, &ov5695_ctrl_ops, + V4L2_CID_VBLANK, vblank_def, + OV5695_VTS_MAX - mode->height, + 1, vblank_def); + + exposure_max = mode->vts_def - 4; + ov5695->exposure = v4l2_ctrl_new_std(handler, &ov5695_ctrl_ops, + V4L2_CID_EXPOSURE, OV5695_EXPOSURE_MIN, + exposure_max, OV5695_EXPOSURE_STEP, + mode->exp_def); + + ov5695->anal_gain = v4l2_ctrl_new_std(handler, &ov5695_ctrl_ops, + V4L2_CID_ANALOGUE_GAIN, ANALOG_GAIN_MIN, + ANALOG_GAIN_MAX, ANALOG_GAIN_STEP, + ANALOG_GAIN_DEFAULT); + + /* Digital gain */ + ov5695->digi_gain = v4l2_ctrl_new_std(handler, &ov5695_ctrl_ops, + V4L2_CID_DIGITAL_GAIN, OV5695_DIGI_GAIN_MIN, + OV5695_DIGI_GAIN_MAX, OV5695_DIGI_GAIN_STEP, + OV5695_DIGI_GAIN_DEFAULT); + + ov5695->test_pattern = v4l2_ctrl_new_std_menu_items(handler, + &ov5695_ctrl_ops, V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(ov5695_test_pattern_menu) - 1, + 0, 0, ov5695_test_pattern_menu); + + if (handler->error) { + ret = handler->error; + dev_err(&ov5695->client->dev, + "Failed to init controls(%d)\n", ret); + goto err_free_handler; + } + + ov5695->subdev.ctrl_handler = handler; + + return 0; + +err_free_handler: + v4l2_ctrl_handler_free(handler); + + return ret; +} + +static int ov5695_check_sensor_id(struct ov5695 *ov5695, + struct i2c_client *client) +{ + struct device *dev = &ov5695->client->dev; + u32 id; + int ret; + + ret = __ov5695_power_on(ov5695); + if (ret) + return ret; + ret = ov5695_read_reg(client, OV5695_REG_CHIP_ID, + OV5695_REG_VALUE_24BIT, &id); + __ov5695_power_off(ov5695); + + if (id != CHIP_ID) { + dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret); + return ret; + } + + dev_info(dev, "Detected OV%06x sensor\n", CHIP_ID); + + return 0; +} + +static int ov5695_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct ov5695 *ov5695; + struct v4l2_subdev *sd; + int ret; + + ov5695 = devm_kzalloc(dev, sizeof(*ov5695), GFP_KERNEL); + if (!ov5695) + return -ENOMEM; + + ov5695->client = client; + ov5695->cur_mode = &supported_modes[0]; + + ov5695->xvclk = devm_clk_get(dev, "xvclk"); + if (IS_ERR(ov5695->xvclk)) { + dev_err(dev, "Failed to get xvclk\n"); + return -EINVAL; + } + ret = clk_set_rate(ov5695->xvclk, 24000000); + if (ret < 0) { + dev_err(dev, "Failed to set xvclk rate (24M)\n"); + return ret; + } + + ov5695->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(ov5695->reset_gpio)) { + dev_err(dev, "Failed to get reset-gpios\n"); + return -EINVAL; + } + + ov5695->avdd_regulator = devm_regulator_get(dev, "avdd"); + if (IS_ERR(ov5695->avdd_regulator)) { + dev_err(dev, "Failed to get avdd-supply\n"); + return -EINVAL; + } + ov5695->dovdd_regulator = devm_regulator_get(dev, "dovdd"); + if (IS_ERR(ov5695->dovdd_regulator)) { + dev_err(dev, "Failed to get dovdd-supply\n"); + return -EINVAL; + } + ov5695->dvdd_regulator = devm_regulator_get(dev, "dvdd"); + if (IS_ERR(ov5695->dvdd_regulator)) { + dev_err(dev, "Failed to get dvdd-supply\n"); + return -EINVAL; + } + + mutex_init(&ov5695->mutex); + + sd = &ov5695->subdev; + v4l2_i2c_subdev_init(sd, client, &ov5695_subdev_ops); +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API + sd->internal_ops = &ov5695_internal_ops; + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; +#endif + + ret = ov5695_initialize_controls(ov5695); + if (ret) + return ret; + ret = ov5695_check_sensor_id(ov5695, client); + if (ret) + return ret; + +#if defined(CONFIG_MEDIA_CONTROLLER) + ov5695->pad.flags = MEDIA_PAD_FL_SOURCE; + sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; + ret = media_entity_pads_init(&sd->entity, 1, &ov5695->pad); + if (ret < 0) + return ret; +#endif + + ret = v4l2_async_register_subdev(sd); + if (ret) { + dev_err(dev, "v4l2 async register subdev failed\n"); + goto clean_entity; + } + + pm_runtime_enable(dev); + dev_info(dev, "Probe successfully\n"); + + return 0; + +clean_entity: +#if defined(CONFIG_MEDIA_CONTROLLER) + media_entity_cleanup(&sd->entity); +#endif + + return ret; +} + +static int ov5695_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct ov5695 *ov5695 = to_ov5695(sd); + + v4l2_async_unregister_subdev(sd); +#if defined(CONFIG_MEDIA_CONTROLLER) + media_entity_cleanup(&sd->entity); +#endif + v4l2_ctrl_handler_free(&ov5695->ctrl_handler); + mutex_destroy(&ov5695->mutex); + + pm_runtime_disable(&client->dev); + if (!pm_runtime_status_suspended(&client->dev)) + __ov5695_power_off(ov5695); + pm_runtime_set_suspended(&client->dev); + + return 0; +} + +static const struct of_device_id ov5695_of_match[] = { + { .compatible = "ovti,ov5695" }, + {}, +}; + +static struct i2c_driver ov5695_i2c_driver = { + .driver = { + .name = "ov5695", + .owner = THIS_MODULE, + .pm = &ov5695_pm_ops, + .of_match_table = ov5695_of_match + }, + .probe = &ov5695_probe, + .remove = &ov5695_remove, +}; + +module_i2c_driver(ov5695_i2c_driver); + +MODULE_DESCRIPTION("OmniVision ov5695 sensor driver"); +MODULE_LICENSE("GPL v2");