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- // SPDX-License-Identifier: GPL-2.0-or-later
- /*
- * Driver for the OV5645 camera sensor.
- *
- * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
- * Copyright (C) 2015 By Tech Design S.L. All Rights Reserved.
- * Copyright (C) 2012-2013 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- * Based on:
- * - the OV5645 driver from QC msm-3.10 kernel on codeaurora.org:
- * https://us.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/drivers/
- * media/platform/msm/camera_v2/sensor/ov5645.c?h=LA.BR.1.2.4_rb1.41
- * - the OV5640 driver posted on linux-media:
- * https://www.mail-archive.com/linux-media%40vger.kernel.org/msg92671.html
- */
- /*
- */
- #include <linux/bitops.h>
- #include <linux/clk.h>
- #include <linux/delay.h>
- #include <linux/device.h>
- #include <linux/gpio/consumer.h>
- #include <linux/i2c.h>
- #include <linux/init.h>
- #include <linux/module.h>
- #include <linux/of.h>
- #include <linux/of_graph.h>
- #include <linux/regulator/consumer.h>
- #include <linux/slab.h>
- #include <linux/types.h>
- #include <media/v4l2-ctrls.h>
- #include <media/v4l2-fwnode.h>
- #include <media/v4l2-subdev.h>
- #define OV5645_SYSTEM_CTRL0 0x3008
- #define OV5645_SYSTEM_CTRL0_START 0x02
- #define OV5645_SYSTEM_CTRL0_STOP 0x42
- #define OV5645_CHIP_ID_HIGH 0x300a
- #define OV5645_CHIP_ID_HIGH_BYTE 0x56
- #define OV5645_CHIP_ID_LOW 0x300b
- #define OV5645_CHIP_ID_LOW_BYTE 0x45
- #define OV5645_IO_MIPI_CTRL00 0x300e
- #define OV5645_PAD_OUTPUT00 0x3019
- #define OV5645_AWB_MANUAL_CONTROL 0x3406
- #define OV5645_AWB_MANUAL_ENABLE BIT(0)
- #define OV5645_AEC_PK_MANUAL 0x3503
- #define OV5645_AEC_MANUAL_ENABLE BIT(0)
- #define OV5645_AGC_MANUAL_ENABLE BIT(1)
- #define OV5645_TIMING_TC_REG20 0x3820
- #define OV5645_SENSOR_VFLIP BIT(1)
- #define OV5645_ISP_VFLIP BIT(2)
- #define OV5645_TIMING_TC_REG21 0x3821
- #define OV5645_SENSOR_MIRROR BIT(1)
- #define OV5645_MIPI_CTRL00 0x4800
- #define OV5645_PRE_ISP_TEST_SETTING_1 0x503d
- #define OV5645_TEST_PATTERN_MASK 0x3
- #define OV5645_SET_TEST_PATTERN(x) ((x) & OV5645_TEST_PATTERN_MASK)
- #define OV5645_TEST_PATTERN_ENABLE BIT(7)
- #define OV5645_SDE_SAT_U 0x5583
- #define OV5645_SDE_SAT_V 0x5584
- /* regulator supplies */
- static const char * const ov5645_supply_name[] = {
- "vdddo", /* Digital I/O (1.8V) supply */
- "vdda", /* Analog (2.8V) supply */
- "vddd", /* Digital Core (1.5V) supply */
- };
- #define OV5645_NUM_SUPPLIES ARRAY_SIZE(ov5645_supply_name)
- struct reg_value {
- u16 reg;
- u8 val;
- };
- struct ov5645_mode_info {
- u32 width;
- u32 height;
- const struct reg_value *data;
- u32 data_size;
- u32 pixel_clock;
- u32 link_freq;
- };
- struct ov5645 {
- struct i2c_client *i2c_client;
- struct device *dev;
- struct v4l2_subdev sd;
- struct media_pad pad;
- struct v4l2_fwnode_endpoint ep;
- struct v4l2_mbus_framefmt fmt;
- struct v4l2_rect crop;
- struct clk *xclk;
- struct regulator_bulk_data supplies[OV5645_NUM_SUPPLIES];
- const struct ov5645_mode_info *current_mode;
- struct v4l2_ctrl_handler ctrls;
- struct v4l2_ctrl *pixel_clock;
- struct v4l2_ctrl *link_freq;
- /* Cached register values */
- u8 aec_pk_manual;
- u8 timing_tc_reg20;
- u8 timing_tc_reg21;
- struct mutex power_lock; /* lock to protect power state */
- int power_count;
- struct gpio_desc *enable_gpio;
- struct gpio_desc *rst_gpio;
- };
- static inline struct ov5645 *to_ov5645(struct v4l2_subdev *sd)
- {
- return container_of(sd, struct ov5645, sd);
- }
- static const struct reg_value ov5645_global_init_setting[] = {
- { 0x3103, 0x11 },
- { 0x3008, 0x82 },
- { 0x3008, 0x42 },
- { 0x3103, 0x03 },
- { 0x3503, 0x07 },
- { 0x3002, 0x1c },
- { 0x3006, 0xc3 },
- { 0x3017, 0x00 },
- { 0x3018, 0x00 },
- { 0x302e, 0x0b },
- { 0x3037, 0x13 },
- { 0x3108, 0x01 },
- { 0x3611, 0x06 },
- { 0x3500, 0x00 },
- { 0x3501, 0x01 },
- { 0x3502, 0x00 },
- { 0x350a, 0x00 },
- { 0x350b, 0x3f },
- { 0x3620, 0x33 },
- { 0x3621, 0xe0 },
- { 0x3622, 0x01 },
- { 0x3630, 0x2e },
- { 0x3631, 0x00 },
- { 0x3632, 0x32 },
- { 0x3633, 0x52 },
- { 0x3634, 0x70 },
- { 0x3635, 0x13 },
- { 0x3636, 0x03 },
- { 0x3703, 0x5a },
- { 0x3704, 0xa0 },
- { 0x3705, 0x1a },
- { 0x3709, 0x12 },
- { 0x370b, 0x61 },
- { 0x370f, 0x10 },
- { 0x3715, 0x78 },
- { 0x3717, 0x01 },
- { 0x371b, 0x20 },
- { 0x3731, 0x12 },
- { 0x3901, 0x0a },
- { 0x3905, 0x02 },
- { 0x3906, 0x10 },
- { 0x3719, 0x86 },
- { 0x3810, 0x00 },
- { 0x3811, 0x10 },
- { 0x3812, 0x00 },
- { 0x3821, 0x01 },
- { 0x3824, 0x01 },
- { 0x3826, 0x03 },
- { 0x3828, 0x08 },
- { 0x3a19, 0xf8 },
- { 0x3c01, 0x34 },
- { 0x3c04, 0x28 },
- { 0x3c05, 0x98 },
- { 0x3c07, 0x07 },
- { 0x3c09, 0xc2 },
- { 0x3c0a, 0x9c },
- { 0x3c0b, 0x40 },
- { 0x3c01, 0x34 },
- { 0x4001, 0x02 },
- { 0x4514, 0x00 },
- { 0x4520, 0xb0 },
- { 0x460b, 0x37 },
- { 0x460c, 0x20 },
- { 0x4818, 0x01 },
- { 0x481d, 0xf0 },
- { 0x481f, 0x50 },
- { 0x4823, 0x70 },
- { 0x4831, 0x14 },
- { 0x5000, 0xa7 },
- { 0x5001, 0x83 },
- { 0x501d, 0x00 },
- { 0x501f, 0x00 },
- { 0x503d, 0x00 },
- { 0x505c, 0x30 },
- { 0x5181, 0x59 },
- { 0x5183, 0x00 },
- { 0x5191, 0xf0 },
- { 0x5192, 0x03 },
- { 0x5684, 0x10 },
- { 0x5685, 0xa0 },
- { 0x5686, 0x0c },
- { 0x5687, 0x78 },
- { 0x5a00, 0x08 },
- { 0x5a21, 0x00 },
- { 0x5a24, 0x00 },
- { 0x3008, 0x02 },
- { 0x3503, 0x00 },
- { 0x5180, 0xff },
- { 0x5181, 0xf2 },
- { 0x5182, 0x00 },
- { 0x5183, 0x14 },
- { 0x5184, 0x25 },
- { 0x5185, 0x24 },
- { 0x5186, 0x09 },
- { 0x5187, 0x09 },
- { 0x5188, 0x0a },
- { 0x5189, 0x75 },
- { 0x518a, 0x52 },
- { 0x518b, 0xea },
- { 0x518c, 0xa8 },
- { 0x518d, 0x42 },
- { 0x518e, 0x38 },
- { 0x518f, 0x56 },
- { 0x5190, 0x42 },
- { 0x5191, 0xf8 },
- { 0x5192, 0x04 },
- { 0x5193, 0x70 },
- { 0x5194, 0xf0 },
- { 0x5195, 0xf0 },
- { 0x5196, 0x03 },
- { 0x5197, 0x01 },
- { 0x5198, 0x04 },
- { 0x5199, 0x12 },
- { 0x519a, 0x04 },
- { 0x519b, 0x00 },
- { 0x519c, 0x06 },
- { 0x519d, 0x82 },
- { 0x519e, 0x38 },
- { 0x5381, 0x1e },
- { 0x5382, 0x5b },
- { 0x5383, 0x08 },
- { 0x5384, 0x0a },
- { 0x5385, 0x7e },
- { 0x5386, 0x88 },
- { 0x5387, 0x7c },
- { 0x5388, 0x6c },
- { 0x5389, 0x10 },
- { 0x538a, 0x01 },
- { 0x538b, 0x98 },
- { 0x5300, 0x08 },
- { 0x5301, 0x30 },
- { 0x5302, 0x10 },
- { 0x5303, 0x00 },
- { 0x5304, 0x08 },
- { 0x5305, 0x30 },
- { 0x5306, 0x08 },
- { 0x5307, 0x16 },
- { 0x5309, 0x08 },
- { 0x530a, 0x30 },
- { 0x530b, 0x04 },
- { 0x530c, 0x06 },
- { 0x5480, 0x01 },
- { 0x5481, 0x08 },
- { 0x5482, 0x14 },
- { 0x5483, 0x28 },
- { 0x5484, 0x51 },
- { 0x5485, 0x65 },
- { 0x5486, 0x71 },
- { 0x5487, 0x7d },
- { 0x5488, 0x87 },
- { 0x5489, 0x91 },
- { 0x548a, 0x9a },
- { 0x548b, 0xaa },
- { 0x548c, 0xb8 },
- { 0x548d, 0xcd },
- { 0x548e, 0xdd },
- { 0x548f, 0xea },
- { 0x5490, 0x1d },
- { 0x5580, 0x02 },
- { 0x5583, 0x40 },
- { 0x5584, 0x10 },
- { 0x5589, 0x10 },
- { 0x558a, 0x00 },
- { 0x558b, 0xf8 },
- { 0x5800, 0x3f },
- { 0x5801, 0x16 },
- { 0x5802, 0x0e },
- { 0x5803, 0x0d },
- { 0x5804, 0x17 },
- { 0x5805, 0x3f },
- { 0x5806, 0x0b },
- { 0x5807, 0x06 },
- { 0x5808, 0x04 },
- { 0x5809, 0x04 },
- { 0x580a, 0x06 },
- { 0x580b, 0x0b },
- { 0x580c, 0x09 },
- { 0x580d, 0x03 },
- { 0x580e, 0x00 },
- { 0x580f, 0x00 },
- { 0x5810, 0x03 },
- { 0x5811, 0x08 },
- { 0x5812, 0x0a },
- { 0x5813, 0x03 },
- { 0x5814, 0x00 },
- { 0x5815, 0x00 },
- { 0x5816, 0x04 },
- { 0x5817, 0x09 },
- { 0x5818, 0x0f },
- { 0x5819, 0x08 },
- { 0x581a, 0x06 },
- { 0x581b, 0x06 },
- { 0x581c, 0x08 },
- { 0x581d, 0x0c },
- { 0x581e, 0x3f },
- { 0x581f, 0x1e },
- { 0x5820, 0x12 },
- { 0x5821, 0x13 },
- { 0x5822, 0x21 },
- { 0x5823, 0x3f },
- { 0x5824, 0x68 },
- { 0x5825, 0x28 },
- { 0x5826, 0x2c },
- { 0x5827, 0x28 },
- { 0x5828, 0x08 },
- { 0x5829, 0x48 },
- { 0x582a, 0x64 },
- { 0x582b, 0x62 },
- { 0x582c, 0x64 },
- { 0x582d, 0x28 },
- { 0x582e, 0x46 },
- { 0x582f, 0x62 },
- { 0x5830, 0x60 },
- { 0x5831, 0x62 },
- { 0x5832, 0x26 },
- { 0x5833, 0x48 },
- { 0x5834, 0x66 },
- { 0x5835, 0x44 },
- { 0x5836, 0x64 },
- { 0x5837, 0x28 },
- { 0x5838, 0x66 },
- { 0x5839, 0x48 },
- { 0x583a, 0x2c },
- { 0x583b, 0x28 },
- { 0x583c, 0x26 },
- { 0x583d, 0xae },
- { 0x5025, 0x00 },
- { 0x3a0f, 0x30 },
- { 0x3a10, 0x28 },
- { 0x3a1b, 0x30 },
- { 0x3a1e, 0x26 },
- { 0x3a11, 0x60 },
- { 0x3a1f, 0x14 },
- { 0x0601, 0x02 },
- { 0x3008, 0x42 },
- { 0x3008, 0x02 },
- { OV5645_IO_MIPI_CTRL00, 0x40 },
- { OV5645_MIPI_CTRL00, 0x24 },
- { OV5645_PAD_OUTPUT00, 0x70 }
- };
- static const struct reg_value ov5645_setting_sxga[] = {
- { 0x3612, 0xa9 },
- { 0x3614, 0x50 },
- { 0x3618, 0x00 },
- { 0x3034, 0x18 },
- { 0x3035, 0x21 },
- { 0x3036, 0x70 },
- { 0x3600, 0x09 },
- { 0x3601, 0x43 },
- { 0x3708, 0x66 },
- { 0x370c, 0xc3 },
- { 0x3800, 0x00 },
- { 0x3801, 0x00 },
- { 0x3802, 0x00 },
- { 0x3803, 0x06 },
- { 0x3804, 0x0a },
- { 0x3805, 0x3f },
- { 0x3806, 0x07 },
- { 0x3807, 0x9d },
- { 0x3808, 0x05 },
- { 0x3809, 0x00 },
- { 0x380a, 0x03 },
- { 0x380b, 0xc0 },
- { 0x380c, 0x07 },
- { 0x380d, 0x68 },
- { 0x380e, 0x03 },
- { 0x380f, 0xd8 },
- { 0x3813, 0x06 },
- { 0x3814, 0x31 },
- { 0x3815, 0x31 },
- { 0x3820, 0x47 },
- { 0x3a02, 0x03 },
- { 0x3a03, 0xd8 },
- { 0x3a08, 0x01 },
- { 0x3a09, 0xf8 },
- { 0x3a0a, 0x01 },
- { 0x3a0b, 0xa4 },
- { 0x3a0e, 0x02 },
- { 0x3a0d, 0x02 },
- { 0x3a14, 0x03 },
- { 0x3a15, 0xd8 },
- { 0x3a18, 0x00 },
- { 0x4004, 0x02 },
- { 0x4005, 0x18 },
- { 0x4300, 0x32 },
- { 0x4202, 0x00 }
- };
- static const struct reg_value ov5645_setting_1080p[] = {
- { 0x3612, 0xab },
- { 0x3614, 0x50 },
- { 0x3618, 0x04 },
- { 0x3034, 0x18 },
- { 0x3035, 0x11 },
- { 0x3036, 0x54 },
- { 0x3600, 0x08 },
- { 0x3601, 0x33 },
- { 0x3708, 0x63 },
- { 0x370c, 0xc0 },
- { 0x3800, 0x01 },
- { 0x3801, 0x50 },
- { 0x3802, 0x01 },
- { 0x3803, 0xb2 },
- { 0x3804, 0x08 },
- { 0x3805, 0xef },
- { 0x3806, 0x05 },
- { 0x3807, 0xf1 },
- { 0x3808, 0x07 },
- { 0x3809, 0x80 },
- { 0x380a, 0x04 },
- { 0x380b, 0x38 },
- { 0x380c, 0x09 },
- { 0x380d, 0xc4 },
- { 0x380e, 0x04 },
- { 0x380f, 0x60 },
- { 0x3813, 0x04 },
- { 0x3814, 0x11 },
- { 0x3815, 0x11 },
- { 0x3820, 0x47 },
- { 0x4514, 0x88 },
- { 0x3a02, 0x04 },
- { 0x3a03, 0x60 },
- { 0x3a08, 0x01 },
- { 0x3a09, 0x50 },
- { 0x3a0a, 0x01 },
- { 0x3a0b, 0x18 },
- { 0x3a0e, 0x03 },
- { 0x3a0d, 0x04 },
- { 0x3a14, 0x04 },
- { 0x3a15, 0x60 },
- { 0x3a18, 0x00 },
- { 0x4004, 0x06 },
- { 0x4005, 0x18 },
- { 0x4300, 0x32 },
- { 0x4202, 0x00 },
- { 0x4837, 0x0b }
- };
- static const struct reg_value ov5645_setting_full[] = {
- { 0x3612, 0xab },
- { 0x3614, 0x50 },
- { 0x3618, 0x04 },
- { 0x3034, 0x18 },
- { 0x3035, 0x11 },
- { 0x3036, 0x54 },
- { 0x3600, 0x08 },
- { 0x3601, 0x33 },
- { 0x3708, 0x63 },
- { 0x370c, 0xc0 },
- { 0x3800, 0x00 },
- { 0x3801, 0x00 },
- { 0x3802, 0x00 },
- { 0x3803, 0x00 },
- { 0x3804, 0x0a },
- { 0x3805, 0x3f },
- { 0x3806, 0x07 },
- { 0x3807, 0x9f },
- { 0x3808, 0x0a },
- { 0x3809, 0x20 },
- { 0x380a, 0x07 },
- { 0x380b, 0x98 },
- { 0x380c, 0x0b },
- { 0x380d, 0x1c },
- { 0x380e, 0x07 },
- { 0x380f, 0xb0 },
- { 0x3813, 0x06 },
- { 0x3814, 0x11 },
- { 0x3815, 0x11 },
- { 0x3820, 0x47 },
- { 0x4514, 0x88 },
- { 0x3a02, 0x07 },
- { 0x3a03, 0xb0 },
- { 0x3a08, 0x01 },
- { 0x3a09, 0x27 },
- { 0x3a0a, 0x00 },
- { 0x3a0b, 0xf6 },
- { 0x3a0e, 0x06 },
- { 0x3a0d, 0x08 },
- { 0x3a14, 0x07 },
- { 0x3a15, 0xb0 },
- { 0x3a18, 0x01 },
- { 0x4004, 0x06 },
- { 0x4005, 0x18 },
- { 0x4300, 0x32 },
- { 0x4837, 0x0b },
- { 0x4202, 0x00 }
- };
- static const s64 link_freq[] = {
- 224000000,
- 336000000
- };
- static const struct ov5645_mode_info ov5645_mode_info_data[] = {
- {
- .width = 1280,
- .height = 960,
- .data = ov5645_setting_sxga,
- .data_size = ARRAY_SIZE(ov5645_setting_sxga),
- .pixel_clock = 112000000,
- .link_freq = 0 /* an index in link_freq[] */
- },
- {
- .width = 1920,
- .height = 1080,
- .data = ov5645_setting_1080p,
- .data_size = ARRAY_SIZE(ov5645_setting_1080p),
- .pixel_clock = 168000000,
- .link_freq = 1 /* an index in link_freq[] */
- },
- {
- .width = 2592,
- .height = 1944,
- .data = ov5645_setting_full,
- .data_size = ARRAY_SIZE(ov5645_setting_full),
- .pixel_clock = 168000000,
- .link_freq = 1 /* an index in link_freq[] */
- },
- };
- static int ov5645_write_reg(struct ov5645 *ov5645, u16 reg, u8 val)
- {
- u8 regbuf[3];
- int ret;
- regbuf[0] = reg >> 8;
- regbuf[1] = reg & 0xff;
- regbuf[2] = val;
- ret = i2c_master_send(ov5645->i2c_client, regbuf, 3);
- if (ret < 0) {
- dev_err(ov5645->dev, "%s: write reg error %d: reg=%x, val=%x\n",
- __func__, ret, reg, val);
- return ret;
- }
- return 0;
- }
- static int ov5645_read_reg(struct ov5645 *ov5645, u16 reg, u8 *val)
- {
- u8 regbuf[2];
- int ret;
- regbuf[0] = reg >> 8;
- regbuf[1] = reg & 0xff;
- ret = i2c_master_send(ov5645->i2c_client, regbuf, 2);
- if (ret < 0) {
- dev_err(ov5645->dev, "%s: write reg error %d: reg=%x\n",
- __func__, ret, reg);
- return ret;
- }
- ret = i2c_master_recv(ov5645->i2c_client, val, 1);
- if (ret < 0) {
- dev_err(ov5645->dev, "%s: read reg error %d: reg=%x\n",
- __func__, ret, reg);
- return ret;
- }
- return 0;
- }
- static int ov5645_set_aec_mode(struct ov5645 *ov5645, u32 mode)
- {
- u8 val = ov5645->aec_pk_manual;
- int ret;
- if (mode == V4L2_EXPOSURE_AUTO)
- val &= ~OV5645_AEC_MANUAL_ENABLE;
- else /* V4L2_EXPOSURE_MANUAL */
- val |= OV5645_AEC_MANUAL_ENABLE;
- ret = ov5645_write_reg(ov5645, OV5645_AEC_PK_MANUAL, val);
- if (!ret)
- ov5645->aec_pk_manual = val;
- return ret;
- }
- static int ov5645_set_agc_mode(struct ov5645 *ov5645, u32 enable)
- {
- u8 val = ov5645->aec_pk_manual;
- int ret;
- if (enable)
- val &= ~OV5645_AGC_MANUAL_ENABLE;
- else
- val |= OV5645_AGC_MANUAL_ENABLE;
- ret = ov5645_write_reg(ov5645, OV5645_AEC_PK_MANUAL, val);
- if (!ret)
- ov5645->aec_pk_manual = val;
- return ret;
- }
- static int ov5645_set_register_array(struct ov5645 *ov5645,
- const struct reg_value *settings,
- unsigned int num_settings)
- {
- unsigned int i;
- int ret;
- for (i = 0; i < num_settings; ++i, ++settings) {
- ret = ov5645_write_reg(ov5645, settings->reg, settings->val);
- if (ret < 0)
- return ret;
- }
- return 0;
- }
- static int ov5645_set_power_on(struct ov5645 *ov5645)
- {
- int ret;
- ret = regulator_bulk_enable(OV5645_NUM_SUPPLIES, ov5645->supplies);
- if (ret < 0)
- return ret;
- ret = clk_prepare_enable(ov5645->xclk);
- if (ret < 0) {
- dev_err(ov5645->dev, "clk prepare enable failed\n");
- regulator_bulk_disable(OV5645_NUM_SUPPLIES, ov5645->supplies);
- return ret;
- }
- usleep_range(5000, 15000);
- gpiod_set_value_cansleep(ov5645->enable_gpio, 1);
- usleep_range(1000, 2000);
- gpiod_set_value_cansleep(ov5645->rst_gpio, 0);
- msleep(20);
- return 0;
- }
- static void ov5645_set_power_off(struct ov5645 *ov5645)
- {
- gpiod_set_value_cansleep(ov5645->rst_gpio, 1);
- gpiod_set_value_cansleep(ov5645->enable_gpio, 0);
- clk_disable_unprepare(ov5645->xclk);
- regulator_bulk_disable(OV5645_NUM_SUPPLIES, ov5645->supplies);
- }
- static int ov5645_s_power(struct v4l2_subdev *sd, int on)
- {
- struct ov5645 *ov5645 = to_ov5645(sd);
- int ret = 0;
- mutex_lock(&ov5645->power_lock);
- /* If the power count is modified from 0 to != 0 or from != 0 to 0,
- * update the power state.
- */
- if (ov5645->power_count == !on) {
- if (on) {
- ret = ov5645_set_power_on(ov5645);
- if (ret < 0)
- goto exit;
- ret = ov5645_set_register_array(ov5645,
- ov5645_global_init_setting,
- ARRAY_SIZE(ov5645_global_init_setting));
- if (ret < 0) {
- dev_err(ov5645->dev,
- "could not set init registers\n");
- ov5645_set_power_off(ov5645);
- goto exit;
- }
- usleep_range(500, 1000);
- } else {
- ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00, 0x58);
- ov5645_set_power_off(ov5645);
- }
- }
- /* Update the power count. */
- ov5645->power_count += on ? 1 : -1;
- WARN_ON(ov5645->power_count < 0);
- exit:
- mutex_unlock(&ov5645->power_lock);
- return ret;
- }
- static int ov5645_set_saturation(struct ov5645 *ov5645, s32 value)
- {
- u32 reg_value = (value * 0x10) + 0x40;
- int ret;
- ret = ov5645_write_reg(ov5645, OV5645_SDE_SAT_U, reg_value);
- if (ret < 0)
- return ret;
- return ov5645_write_reg(ov5645, OV5645_SDE_SAT_V, reg_value);
- }
- static int ov5645_set_hflip(struct ov5645 *ov5645, s32 value)
- {
- u8 val = ov5645->timing_tc_reg21;
- int ret;
- if (value == 0)
- val &= ~(OV5645_SENSOR_MIRROR);
- else
- val |= (OV5645_SENSOR_MIRROR);
- ret = ov5645_write_reg(ov5645, OV5645_TIMING_TC_REG21, val);
- if (!ret)
- ov5645->timing_tc_reg21 = val;
- return ret;
- }
- static int ov5645_set_vflip(struct ov5645 *ov5645, s32 value)
- {
- u8 val = ov5645->timing_tc_reg20;
- int ret;
- if (value == 0)
- val |= (OV5645_SENSOR_VFLIP | OV5645_ISP_VFLIP);
- else
- val &= ~(OV5645_SENSOR_VFLIP | OV5645_ISP_VFLIP);
- ret = ov5645_write_reg(ov5645, OV5645_TIMING_TC_REG20, val);
- if (!ret)
- ov5645->timing_tc_reg20 = val;
- return ret;
- }
- static int ov5645_set_test_pattern(struct ov5645 *ov5645, s32 value)
- {
- u8 val = 0;
- if (value) {
- val = OV5645_SET_TEST_PATTERN(value - 1);
- val |= OV5645_TEST_PATTERN_ENABLE;
- }
- return ov5645_write_reg(ov5645, OV5645_PRE_ISP_TEST_SETTING_1, val);
- }
- static const char * const ov5645_test_pattern_menu[] = {
- "Disabled",
- "Vertical Color Bars",
- "Pseudo-Random Data",
- "Color Square",
- "Black Image",
- };
- static int ov5645_set_awb(struct ov5645 *ov5645, s32 enable_auto)
- {
- u8 val = 0;
- if (!enable_auto)
- val = OV5645_AWB_MANUAL_ENABLE;
- return ov5645_write_reg(ov5645, OV5645_AWB_MANUAL_CONTROL, val);
- }
- static int ov5645_s_ctrl(struct v4l2_ctrl *ctrl)
- {
- struct ov5645 *ov5645 = container_of(ctrl->handler,
- struct ov5645, ctrls);
- int ret;
- mutex_lock(&ov5645->power_lock);
- if (!ov5645->power_count) {
- mutex_unlock(&ov5645->power_lock);
- return 0;
- }
- switch (ctrl->id) {
- case V4L2_CID_SATURATION:
- ret = ov5645_set_saturation(ov5645, ctrl->val);
- break;
- case V4L2_CID_AUTO_WHITE_BALANCE:
- ret = ov5645_set_awb(ov5645, ctrl->val);
- break;
- case V4L2_CID_AUTOGAIN:
- ret = ov5645_set_agc_mode(ov5645, ctrl->val);
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- ret = ov5645_set_aec_mode(ov5645, ctrl->val);
- break;
- case V4L2_CID_TEST_PATTERN:
- ret = ov5645_set_test_pattern(ov5645, ctrl->val);
- break;
- case V4L2_CID_HFLIP:
- ret = ov5645_set_hflip(ov5645, ctrl->val);
- break;
- case V4L2_CID_VFLIP:
- ret = ov5645_set_vflip(ov5645, ctrl->val);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- mutex_unlock(&ov5645->power_lock);
- return ret;
- }
- static const struct v4l2_ctrl_ops ov5645_ctrl_ops = {
- .s_ctrl = ov5645_s_ctrl,
- };
- static int ov5645_enum_mbus_code(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_mbus_code_enum *code)
- {
- if (code->index > 0)
- return -EINVAL;
- code->code = MEDIA_BUS_FMT_UYVY8_1X16;
- return 0;
- }
- static int ov5645_enum_frame_size(struct v4l2_subdev *subdev,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_frame_size_enum *fse)
- {
- if (fse->code != MEDIA_BUS_FMT_UYVY8_1X16)
- return -EINVAL;
- if (fse->index >= ARRAY_SIZE(ov5645_mode_info_data))
- return -EINVAL;
- fse->min_width = ov5645_mode_info_data[fse->index].width;
- fse->max_width = ov5645_mode_info_data[fse->index].width;
- fse->min_height = ov5645_mode_info_data[fse->index].height;
- fse->max_height = ov5645_mode_info_data[fse->index].height;
- return 0;
- }
- static struct v4l2_mbus_framefmt *
- __ov5645_get_pad_format(struct ov5645 *ov5645,
- 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_format(&ov5645->sd, sd_state, pad);
- case V4L2_SUBDEV_FORMAT_ACTIVE:
- return &ov5645->fmt;
- default:
- return NULL;
- }
- }
- static int ov5645_get_format(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_format *format)
- {
- struct ov5645 *ov5645 = to_ov5645(sd);
- format->format = *__ov5645_get_pad_format(ov5645, sd_state,
- format->pad,
- format->which);
- return 0;
- }
- static struct v4l2_rect *
- __ov5645_get_pad_crop(struct ov5645 *ov5645,
- 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(&ov5645->sd, sd_state, pad);
- case V4L2_SUBDEV_FORMAT_ACTIVE:
- return &ov5645->crop;
- default:
- return NULL;
- }
- }
- static int ov5645_set_format(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_format *format)
- {
- struct ov5645 *ov5645 = to_ov5645(sd);
- struct v4l2_mbus_framefmt *__format;
- struct v4l2_rect *__crop;
- const struct ov5645_mode_info *new_mode;
- int ret;
- __crop = __ov5645_get_pad_crop(ov5645, sd_state, format->pad,
- format->which);
- new_mode = v4l2_find_nearest_size(ov5645_mode_info_data,
- ARRAY_SIZE(ov5645_mode_info_data),
- width, height,
- format->format.width, format->format.height);
- __crop->width = new_mode->width;
- __crop->height = new_mode->height;
- if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
- ret = v4l2_ctrl_s_ctrl_int64(ov5645->pixel_clock,
- new_mode->pixel_clock);
- if (ret < 0)
- return ret;
- ret = v4l2_ctrl_s_ctrl(ov5645->link_freq,
- new_mode->link_freq);
- if (ret < 0)
- return ret;
- ov5645->current_mode = new_mode;
- }
- __format = __ov5645_get_pad_format(ov5645, sd_state, format->pad,
- format->which);
- __format->width = __crop->width;
- __format->height = __crop->height;
- __format->code = MEDIA_BUS_FMT_UYVY8_1X16;
- __format->field = V4L2_FIELD_NONE;
- __format->colorspace = V4L2_COLORSPACE_SRGB;
- format->format = *__format;
- return 0;
- }
- static int ov5645_entity_init_cfg(struct v4l2_subdev *subdev,
- struct v4l2_subdev_state *sd_state)
- {
- struct v4l2_subdev_format fmt = { 0 };
- fmt.which = sd_state ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE;
- fmt.format.width = 1920;
- fmt.format.height = 1080;
- ov5645_set_format(subdev, sd_state, &fmt);
- return 0;
- }
- static int ov5645_get_selection(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_selection *sel)
- {
- struct ov5645 *ov5645 = to_ov5645(sd);
- if (sel->target != V4L2_SEL_TGT_CROP)
- return -EINVAL;
- sel->r = *__ov5645_get_pad_crop(ov5645, sd_state, sel->pad,
- sel->which);
- return 0;
- }
- static int ov5645_s_stream(struct v4l2_subdev *subdev, int enable)
- {
- struct ov5645 *ov5645 = to_ov5645(subdev);
- int ret;
- if (enable) {
- ret = ov5645_set_register_array(ov5645,
- ov5645->current_mode->data,
- ov5645->current_mode->data_size);
- if (ret < 0) {
- dev_err(ov5645->dev, "could not set mode %dx%d\n",
- ov5645->current_mode->width,
- ov5645->current_mode->height);
- return ret;
- }
- ret = v4l2_ctrl_handler_setup(&ov5645->ctrls);
- if (ret < 0) {
- dev_err(ov5645->dev, "could not sync v4l2 controls\n");
- return ret;
- }
- ret = ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00, 0x45);
- if (ret < 0)
- return ret;
- ret = ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0,
- OV5645_SYSTEM_CTRL0_START);
- if (ret < 0)
- return ret;
- } else {
- ret = ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00, 0x40);
- if (ret < 0)
- return ret;
- ret = ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0,
- OV5645_SYSTEM_CTRL0_STOP);
- if (ret < 0)
- return ret;
- }
- return 0;
- }
- static const struct v4l2_subdev_core_ops ov5645_core_ops = {
- .s_power = ov5645_s_power,
- };
- static const struct v4l2_subdev_video_ops ov5645_video_ops = {
- .s_stream = ov5645_s_stream,
- };
- static const struct v4l2_subdev_pad_ops ov5645_subdev_pad_ops = {
- .init_cfg = ov5645_entity_init_cfg,
- .enum_mbus_code = ov5645_enum_mbus_code,
- .enum_frame_size = ov5645_enum_frame_size,
- .get_fmt = ov5645_get_format,
- .set_fmt = ov5645_set_format,
- .get_selection = ov5645_get_selection,
- };
- static const struct v4l2_subdev_ops ov5645_subdev_ops = {
- .core = &ov5645_core_ops,
- .video = &ov5645_video_ops,
- .pad = &ov5645_subdev_pad_ops,
- };
- static int ov5645_probe(struct i2c_client *client)
- {
- struct device *dev = &client->dev;
- struct device_node *endpoint;
- struct ov5645 *ov5645;
- u8 chip_id_high, chip_id_low;
- unsigned int i;
- u32 xclk_freq;
- int ret;
- ov5645 = devm_kzalloc(dev, sizeof(struct ov5645), GFP_KERNEL);
- if (!ov5645)
- return -ENOMEM;
- ov5645->i2c_client = client;
- ov5645->dev = dev;
- endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
- if (!endpoint) {
- dev_err(dev, "endpoint node not found\n");
- return -EINVAL;
- }
- ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint),
- &ov5645->ep);
- of_node_put(endpoint);
- if (ret < 0) {
- dev_err(dev, "parsing endpoint node failed\n");
- return ret;
- }
- if (ov5645->ep.bus_type != V4L2_MBUS_CSI2_DPHY) {
- dev_err(dev, "invalid bus type, must be CSI2\n");
- return -EINVAL;
- }
- /* get system clock (xclk) */
- ov5645->xclk = devm_clk_get(dev, "xclk");
- if (IS_ERR(ov5645->xclk)) {
- dev_err(dev, "could not get xclk");
- return PTR_ERR(ov5645->xclk);
- }
- ret = of_property_read_u32(dev->of_node, "clock-frequency", &xclk_freq);
- if (ret) {
- dev_err(dev, "could not get xclk frequency\n");
- return ret;
- }
- /* external clock must be 24MHz, allow 1% tolerance */
- if (xclk_freq < 23760000 || xclk_freq > 24240000) {
- dev_err(dev, "external clock frequency %u is not supported\n",
- xclk_freq);
- return -EINVAL;
- }
- ret = clk_set_rate(ov5645->xclk, xclk_freq);
- if (ret) {
- dev_err(dev, "could not set xclk frequency\n");
- return ret;
- }
- for (i = 0; i < OV5645_NUM_SUPPLIES; i++)
- ov5645->supplies[i].supply = ov5645_supply_name[i];
- ret = devm_regulator_bulk_get(dev, OV5645_NUM_SUPPLIES,
- ov5645->supplies);
- if (ret < 0)
- return ret;
- ov5645->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
- if (IS_ERR(ov5645->enable_gpio)) {
- dev_err(dev, "cannot get enable gpio\n");
- return PTR_ERR(ov5645->enable_gpio);
- }
- ov5645->rst_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
- if (IS_ERR(ov5645->rst_gpio)) {
- dev_err(dev, "cannot get reset gpio\n");
- return PTR_ERR(ov5645->rst_gpio);
- }
- mutex_init(&ov5645->power_lock);
- v4l2_ctrl_handler_init(&ov5645->ctrls, 9);
- v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
- V4L2_CID_SATURATION, -4, 4, 1, 0);
- v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
- V4L2_CID_HFLIP, 0, 1, 1, 0);
- v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
- V4L2_CID_VFLIP, 0, 1, 1, 0);
- v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
- V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
- v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
- V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
- v4l2_ctrl_new_std_menu(&ov5645->ctrls, &ov5645_ctrl_ops,
- V4L2_CID_EXPOSURE_AUTO, V4L2_EXPOSURE_MANUAL,
- 0, V4L2_EXPOSURE_AUTO);
- v4l2_ctrl_new_std_menu_items(&ov5645->ctrls, &ov5645_ctrl_ops,
- V4L2_CID_TEST_PATTERN,
- ARRAY_SIZE(ov5645_test_pattern_menu) - 1,
- 0, 0, ov5645_test_pattern_menu);
- ov5645->pixel_clock = v4l2_ctrl_new_std(&ov5645->ctrls,
- &ov5645_ctrl_ops,
- V4L2_CID_PIXEL_RATE,
- 1, INT_MAX, 1, 1);
- ov5645->link_freq = v4l2_ctrl_new_int_menu(&ov5645->ctrls,
- &ov5645_ctrl_ops,
- V4L2_CID_LINK_FREQ,
- ARRAY_SIZE(link_freq) - 1,
- 0, link_freq);
- if (ov5645->link_freq)
- ov5645->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
- ov5645->sd.ctrl_handler = &ov5645->ctrls;
- if (ov5645->ctrls.error) {
- dev_err(dev, "%s: control initialization error %d\n",
- __func__, ov5645->ctrls.error);
- ret = ov5645->ctrls.error;
- goto free_ctrl;
- }
- v4l2_i2c_subdev_init(&ov5645->sd, client, &ov5645_subdev_ops);
- ov5645->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
- ov5645->pad.flags = MEDIA_PAD_FL_SOURCE;
- ov5645->sd.dev = &client->dev;
- ov5645->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
- ret = media_entity_pads_init(&ov5645->sd.entity, 1, &ov5645->pad);
- if (ret < 0) {
- dev_err(dev, "could not register media entity\n");
- goto free_ctrl;
- }
- ret = ov5645_s_power(&ov5645->sd, true);
- if (ret < 0) {
- dev_err(dev, "could not power up OV5645\n");
- goto free_entity;
- }
- ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_HIGH, &chip_id_high);
- if (ret < 0 || chip_id_high != OV5645_CHIP_ID_HIGH_BYTE) {
- dev_err(dev, "could not read ID high\n");
- ret = -ENODEV;
- goto power_down;
- }
- ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_LOW, &chip_id_low);
- if (ret < 0 || chip_id_low != OV5645_CHIP_ID_LOW_BYTE) {
- dev_err(dev, "could not read ID low\n");
- ret = -ENODEV;
- goto power_down;
- }
- dev_info(dev, "OV5645 detected at address 0x%02x\n", client->addr);
- ret = ov5645_read_reg(ov5645, OV5645_AEC_PK_MANUAL,
- &ov5645->aec_pk_manual);
- if (ret < 0) {
- dev_err(dev, "could not read AEC/AGC mode\n");
- ret = -ENODEV;
- goto power_down;
- }
- ret = ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG20,
- &ov5645->timing_tc_reg20);
- if (ret < 0) {
- dev_err(dev, "could not read vflip value\n");
- ret = -ENODEV;
- goto power_down;
- }
- ret = ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG21,
- &ov5645->timing_tc_reg21);
- if (ret < 0) {
- dev_err(dev, "could not read hflip value\n");
- ret = -ENODEV;
- goto power_down;
- }
- ov5645_s_power(&ov5645->sd, false);
- ret = v4l2_async_register_subdev(&ov5645->sd);
- if (ret < 0) {
- dev_err(dev, "could not register v4l2 device\n");
- goto free_entity;
- }
- ov5645_entity_init_cfg(&ov5645->sd, NULL);
- return 0;
- power_down:
- ov5645_s_power(&ov5645->sd, false);
- free_entity:
- media_entity_cleanup(&ov5645->sd.entity);
- free_ctrl:
- v4l2_ctrl_handler_free(&ov5645->ctrls);
- mutex_destroy(&ov5645->power_lock);
- return ret;
- }
- static void ov5645_remove(struct i2c_client *client)
- {
- struct v4l2_subdev *sd = i2c_get_clientdata(client);
- struct ov5645 *ov5645 = to_ov5645(sd);
- v4l2_async_unregister_subdev(&ov5645->sd);
- media_entity_cleanup(&ov5645->sd.entity);
- v4l2_ctrl_handler_free(&ov5645->ctrls);
- mutex_destroy(&ov5645->power_lock);
- }
- static const struct i2c_device_id ov5645_id[] = {
- { "ov5645", 0 },
- {}
- };
- MODULE_DEVICE_TABLE(i2c, ov5645_id);
- static const struct of_device_id ov5645_of_match[] = {
- { .compatible = "ovti,ov5645" },
- { /* sentinel */ }
- };
- MODULE_DEVICE_TABLE(of, ov5645_of_match);
- static struct i2c_driver ov5645_i2c_driver = {
- .driver = {
- .of_match_table = ov5645_of_match,
- .name = "ov5645",
- },
- .probe_new = ov5645_probe,
- .remove = ov5645_remove,
- .id_table = ov5645_id,
- };
- module_i2c_driver(ov5645_i2c_driver);
- MODULE_DESCRIPTION("Omnivision OV5645 Camera Driver");
- MODULE_AUTHOR("Todor Tomov <[email protected]>");
- MODULE_LICENSE("GPL v2");
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