// SPDX-License-Identifier: GPL-2.0 /* * ov4689 driver * * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd. * Copyright (C) 2022, 2024 Mikhail Rudenko */ #include <linux/clk.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 <media/media-entity.h> #include <media/v4l2-async.h> #include <media/v4l2-cci.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-subdev.h> #include <media/v4l2-fwnode.h> #define OV4689_REG_CTRL_MODE … #define OV4689_MODE_SW_STANDBY … #define OV4689_MODE_STREAMING … #define OV4689_REG_CHIP_ID … #define CHIP_ID … #define OV4689_REG_EXPOSURE … #define OV4689_EXPOSURE_MIN … #define OV4689_EXPOSURE_STEP … #define OV4689_REG_GAIN … #define OV4689_GAIN_STEP … #define OV4689_GAIN_DEFAULT … #define OV4689_REG_DIG_GAIN … #define OV4689_DIG_GAIN_MIN … #define OV4689_DIG_GAIN_MAX … #define OV4689_DIG_GAIN_STEP … #define OV4689_DIG_GAIN_DEFAULT … #define OV4689_REG_H_CROP_START … #define OV4689_REG_V_CROP_START … #define OV4689_REG_H_CROP_END … #define OV4689_REG_V_CROP_END … #define OV4689_REG_H_OUTPUT_SIZE … #define OV4689_REG_V_OUTPUT_SIZE … #define OV4689_REG_HTS … #define OV4689_HTS_DIVIDER … #define OV4689_HTS_MAX … #define OV4689_REG_VTS … #define OV4689_VTS_MAX … #define OV4689_REG_H_WIN_OFF … #define OV4689_REG_V_WIN_OFF … #define OV4689_REG_TIMING_FORMAT1 … #define OV4689_REG_TIMING_FORMAT2 … #define OV4689_TIMING_FLIP_MASK … #define OV4689_TIMING_FLIP_ARRAY … #define OV4689_TIMING_FLIP_DIGITAL … #define OV4689_TIMING_FLIP_BOTH … #define OV4689_REG_ANCHOR_LEFT_START … #define OV4689_ANCHOR_LEFT_START_DEF … #define OV4689_REG_ANCHOR_LEFT_END … #define OV4689_ANCHOR_LEFT_END_DEF … #define OV4689_REG_ANCHOR_RIGHT_START … #define OV4689_ANCHOR_RIGHT_START_DEF … #define OV4689_REG_ANCHOR_RIGHT_END … #define OV4689_ANCHOR_RIGHT_END_DEF … #define OV4689_REG_VFIFO_CTRL_01 … #define OV4689_REG_WB_GAIN_RED … #define OV4689_REG_WB_GAIN_BLUE … #define OV4689_WB_GAIN_MIN … #define OV4689_WB_GAIN_MAX … #define OV4689_WB_GAIN_STEP … #define OV4689_WB_GAIN_DEFAULT … #define OV4689_REG_TEST_PATTERN … #define OV4689_TEST_PATTERN_ENABLE … #define OV4689_TEST_PATTERN_DISABLE … #define OV4689_LANES … #define OV4689_XVCLK_FREQ … #define OV4689_PIXEL_ARRAY_WIDTH … #define OV4689_PIXEL_ARRAY_HEIGHT … #define OV4689_DUMMY_ROWS … #define OV4689_DUMMY_COLUMNS … static const char *const ov4689_supply_names[] = …; enum ov4689_mode_id { … }; struct ov4689_mode { … }; struct ov4689 { … }; #define to_ov4689(sd) … struct ov4689_gain_range { … }; /* * Xclk 24Mhz * max_framerate 90fps * mipi_datarate per lane 1008Mbps */ static const struct cci_reg_sequence ov4689_2688x1520_regs[] = …; static const struct ov4689_mode supported_modes[] = …; static const u64 link_freq_menu_items[] = …; static const char *const ov4689_test_pattern_menu[] = …; /* * These coefficients are based on those used in Rockchip's camera * engine, with minor tweaks for continuity. */ static const struct ov4689_gain_range ov4689_gain_ranges[] = …; static void ov4689_fill_fmt(const struct ov4689_mode *mode, struct v4l2_mbus_framefmt *fmt) { … } static int ov4689_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { … } static int ov4689_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { … } static int ov4689_enum_frame_sizes(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { … } static int ov4689_enable_test_pattern(struct ov4689 *ov4689, u32 pattern) { … } static int ov4689_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, struct v4l2_subdev_selection *sel) { … } static int ov4689_setup_timings(struct ov4689 *ov4689) { … } static int ov4689_setup_blc_anchors(struct ov4689 *ov4689) { … } static int ov4689_s_stream(struct v4l2_subdev *sd, int on) { … } /* Calculate the delay in us by clock rate and clock cycles */ static inline u32 ov4689_cal_delay(struct ov4689 *ov4689, u32 cycles) { … } static int __maybe_unused ov4689_power_on(struct device *dev) { … } static int __maybe_unused ov4689_power_off(struct device *dev) { … } static int ov4689_init_state(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state) { … } static const struct dev_pm_ops ov4689_pm_ops = …; static const struct v4l2_subdev_video_ops ov4689_video_ops = …; static const struct v4l2_subdev_pad_ops ov4689_pad_ops = …; static const struct v4l2_subdev_internal_ops ov4689_internal_ops = …; static const struct v4l2_subdev_ops ov4689_subdev_ops = …; /* * Map userspace (logical) gain to sensor (physical) gain using * ov4689_gain_ranges table. */ static int ov4689_map_gain(struct ov4689 *ov4689, int logical_gain, int *result) { … } static int ov4689_set_ctrl(struct v4l2_ctrl *ctrl) { … } static const struct v4l2_ctrl_ops ov4689_ctrl_ops = …; static int ov4689_initialize_controls(struct ov4689 *ov4689) { … } static int ov4689_check_sensor_id(struct ov4689 *ov4689, struct i2c_client *client) { … } static int ov4689_configure_regulators(struct ov4689 *ov4689) { … } static u64 ov4689_check_link_frequency(struct v4l2_fwnode_endpoint *ep) { … } static int ov4689_check_hwcfg(struct device *dev) { … } static int ov4689_probe(struct i2c_client *client) { … } static void ov4689_remove(struct i2c_client *client) { … } static const struct of_device_id ov4689_of_match[] = …; MODULE_DEVICE_TABLE(of, ov4689_of_match); static struct i2c_driver ov4689_i2c_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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