// SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2017 Intel Corporation. #include <linux/unaligned.h> #include <linux/acpi.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/of.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-event.h> #include <media/v4l2-fwnode.h> #define OV5670_XVCLK_FREQ … #define OV5670_REG_CHIP_ID … #define OV5670_CHIP_ID … #define OV5670_REG_MODE_SELECT … #define OV5670_MODE_STANDBY … #define OV5670_MODE_STREAMING … #define OV5670_REG_SOFTWARE_RST … #define OV5670_SOFTWARE_RST … #define OV5670_MIPI_SC_CTRL0_REG … #define OV5670_MIPI_SC_CTRL0_LANES(v) … #define OV5670_MIPI_SC_CTRL0_MIPI_EN … #define OV5670_MIPI_SC_CTRL0_RESERVED … /* vertical-timings from sensor */ #define OV5670_REG_VTS … #define OV5670_VTS_30FPS … #define OV5670_VTS_MAX … /* horizontal-timings from sensor */ #define OV5670_REG_HTS … /* * Pixels-per-line(PPL) = Time-per-line * pixel-rate * In OV5670, Time-per-line = HTS/SCLK. * HTS is fixed for all resolutions, not recommended to change. */ #define OV5670_FIXED_PPL … /* Exposure controls from sensor */ #define OV5670_REG_EXPOSURE … #define OV5670_EXPOSURE_MIN … #define OV5670_EXPOSURE_STEP … /* Analog gain controls from sensor */ #define OV5670_REG_ANALOG_GAIN … #define ANALOG_GAIN_MIN … #define ANALOG_GAIN_MAX … #define ANALOG_GAIN_STEP … #define ANALOG_GAIN_DEFAULT … /* Digital gain controls from sensor */ #define OV5670_REG_R_DGTL_GAIN … #define OV5670_REG_G_DGTL_GAIN … #define OV5670_REG_B_DGTL_GAIN … #define OV5670_DGTL_GAIN_MIN … #define OV5670_DGTL_GAIN_MAX … #define OV5670_DGTL_GAIN_STEP … #define OV5670_DGTL_GAIN_DEFAULT … /* Test Pattern Control */ #define OV5670_REG_TEST_PATTERN … #define OV5670_TEST_PATTERN_ENABLE … #define OV5670_REG_TEST_PATTERN_CTRL … #define OV5670_REG_VALUE_08BIT … #define OV5670_REG_VALUE_16BIT … #define OV5670_REG_VALUE_24BIT … /* Pixel Array */ #define OV5670_NATIVE_WIDTH … #define OV5670_NATIVE_HEIGHT … /* Initial number of frames to skip to avoid possible garbage */ #define OV5670_NUM_OF_SKIP_FRAMES … struct ov5670_reg { … }; struct ov5670_reg_list { … }; struct ov5670_link_freq_config { … }; static const char * const ov5670_supply_names[] = …; #define OV5670_NUM_SUPPLIES … struct ov5670_mode { … }; /* * All the modes supported by the driver are obtained by subsampling the * full pixel array. The below values are reflected in registers from * 0x3800-0x3807 in the modes register-value tables. */ static const struct v4l2_rect ov5670_analog_crop = …; static const struct ov5670_reg mipi_data_rate_840mbps[] = …; static const struct ov5670_reg mode_2592x1944_regs[] = …; static const struct ov5670_reg mode_1296x972_regs[] = …; static const struct ov5670_reg mode_648x486_regs[] = …; static const struct ov5670_reg mode_2560x1440_regs[] = …; static const struct ov5670_reg mode_1280x720_regs[] = …; static const struct ov5670_reg mode_640x360_regs[] = …; static const char * const ov5670_test_pattern_menu[] = …; /* Supported link frequencies */ #define OV5670_LINK_FREQ_422MHZ … #define OV5670_LINK_FREQ_422MHZ_INDEX … static const struct ov5670_link_freq_config link_freq_configs[] = …; static const s64 link_freq_menu_items[] = …; /* * OV5670 sensor supports following resolutions with full FOV: * 4:3 ==> {2592x1944, 1296x972, 648x486} * 16:9 ==> {2560x1440, 1280x720, 640x360} */ static const struct ov5670_mode supported_modes[] = …; struct ov5670 { … }; #define to_ov5670(_sd) … /* Read registers up to 4 at a time */ static int ov5670_read_reg(struct ov5670 *ov5670, u16 reg, unsigned int len, u32 *val) { … } /* Write registers up to 4 at a time */ static int ov5670_write_reg(struct ov5670 *ov5670, u16 reg, unsigned int len, u32 val) { … } /* Write a list of registers */ static int ov5670_write_regs(struct ov5670 *ov5670, const struct ov5670_reg *regs, unsigned int len) { … } static int ov5670_write_reg_list(struct ov5670 *ov5670, const struct ov5670_reg_list *r_list) { … } static int ov5670_update_digital_gain(struct ov5670 *ov5670, u32 d_gain) { … } static int ov5670_enable_test_pattern(struct ov5670 *ov5670, u32 pattern) { … } /* Initialize control handlers */ static int ov5670_set_ctrl(struct v4l2_ctrl *ctrl) { … } static const struct v4l2_ctrl_ops ov5670_ctrl_ops = …; /* Initialize control handlers */ static int ov5670_init_controls(struct ov5670 *ov5670) { … } static int ov5670_init_state(struct v4l2_subdev *sd, struct v4l2_subdev_state *state) { … } static int ov5670_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { … } static int ov5670_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { … } static void ov5670_update_pad_format(const struct ov5670_mode *mode, struct v4l2_subdev_format *fmt) { … } static int ov5670_do_get_pad_format(struct ov5670 *ov5670, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { … } static int ov5670_get_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { … } static int ov5670_set_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { … } static int ov5670_get_skip_frames(struct v4l2_subdev *sd, u32 *frames) { … } /* Verify chip ID */ static int ov5670_identify_module(struct ov5670 *ov5670) { … } static int ov5670_mipi_configure(struct ov5670 *ov5670) { … } /* Prepare streaming by writing default values and customized values */ static int ov5670_start_streaming(struct ov5670 *ov5670) { … } static int ov5670_stop_streaming(struct ov5670 *ov5670) { … } static int ov5670_set_stream(struct v4l2_subdev *sd, int enable) { … } static int __maybe_unused ov5670_runtime_resume(struct device *dev) { … } static int __maybe_unused ov5670_runtime_suspend(struct device *dev) { … } static const struct v4l2_subdev_core_ops ov5670_core_ops = …; static const struct v4l2_rect * __ov5670_get_pad_crop(struct ov5670 *sensor, struct v4l2_subdev_state *state, unsigned int pad, enum v4l2_subdev_format_whence which) { … } static int ov5670_get_selection(struct v4l2_subdev *subdev, struct v4l2_subdev_state *state, struct v4l2_subdev_selection *sel) { … } static const struct v4l2_subdev_video_ops ov5670_video_ops = …; static const struct v4l2_subdev_pad_ops ov5670_pad_ops = …; static const struct v4l2_subdev_sensor_ops ov5670_sensor_ops = …; static const struct v4l2_subdev_ops ov5670_subdev_ops = …; static const struct v4l2_subdev_internal_ops ov5670_internal_ops = …; static const struct media_entity_operations ov5670_subdev_entity_ops = …; static int ov5670_regulators_probe(struct ov5670 *ov5670) { … } static int ov5670_gpio_probe(struct ov5670 *ov5670) { … } static int ov5670_probe(struct i2c_client *client) { … } static void ov5670_remove(struct i2c_client *client) { … } static const struct dev_pm_ops ov5670_pm_ops = …; #ifdef CONFIG_ACPI static const struct acpi_device_id ov5670_acpi_ids[] = …; MODULE_DEVICE_TABLE(acpi, ov5670_acpi_ids); #endif static const struct of_device_id ov5670_of_ids[] = …; MODULE_DEVICE_TABLE(of, ov5670_of_ids); static struct i2c_driver ov5670_i2c_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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