// SPDX-License-Identifier: GPL-2.0 // Copyright (C) 2021 Intel Corporation #include <linux/acpi.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <linux/unaligned.h> #define IMX208_REG_MODE_SELECT … #define IMX208_MODE_STANDBY … #define IMX208_MODE_STREAMING … /* Chip ID */ #define IMX208_REG_CHIP_ID … #define IMX208_CHIP_ID … /* V_TIMING internal */ #define IMX208_REG_VTS … #define IMX208_VTS_60FPS … #define IMX208_VTS_BINNING … #define IMX208_VTS_60FPS_MIN … #define IMX208_VTS_BINNING_MIN … #define IMX208_VTS_MAX … /* HBLANK control - read only */ #define IMX208_PPL_384MHZ … #define IMX208_PPL_96MHZ … /* Exposure control */ #define IMX208_REG_EXPOSURE … #define IMX208_EXPOSURE_MIN … #define IMX208_EXPOSURE_STEP … #define IMX208_EXPOSURE_DEFAULT … #define IMX208_EXPOSURE_MAX … /* Analog gain control */ #define IMX208_REG_ANALOG_GAIN … #define IMX208_ANA_GAIN_MIN … #define IMX208_ANA_GAIN_MAX … #define IMX208_ANA_GAIN_STEP … #define IMX208_ANA_GAIN_DEFAULT … /* Digital gain control */ #define IMX208_REG_GR_DIGITAL_GAIN … #define IMX208_REG_R_DIGITAL_GAIN … #define IMX208_REG_B_DIGITAL_GAIN … #define IMX208_REG_GB_DIGITAL_GAIN … #define IMX208_DIGITAL_GAIN_SHIFT … /* Orientation */ #define IMX208_REG_ORIENTATION_CONTROL … /* Test Pattern Control */ #define IMX208_REG_TEST_PATTERN_MODE … #define IMX208_TEST_PATTERN_DISABLE … #define IMX208_TEST_PATTERN_SOLID_COLOR … #define IMX208_TEST_PATTERN_COLOR_BARS … #define IMX208_TEST_PATTERN_GREY_COLOR … #define IMX208_TEST_PATTERN_PN9 … #define IMX208_TEST_PATTERN_FIX_1 … #define IMX208_TEST_PATTERN_FIX_2 … #define IMX208_TEST_PATTERN_FIX_3 … #define IMX208_TEST_PATTERN_FIX_4 … #define IMX208_TEST_PATTERN_FIX_5 … #define IMX208_TEST_PATTERN_FIX_6 … /* OTP Access */ #define IMX208_OTP_BASE … #define IMX208_OTP_SIZE … struct imx208_reg { … }; struct imx208_reg_list { … }; /* Link frequency config */ struct imx208_link_freq_config { … }; /* Mode : resolution and related config&values */ struct imx208_mode { … }; static const struct imx208_reg pll_ctrl_reg[] = …; static const struct imx208_reg mode_1936x1096_60fps_regs[] = …; static const struct imx208_reg mode_968_548_60fps_regs[] = …; static const s64 imx208_discrete_digital_gain[] = …; static const char * const imx208_test_pattern_menu[] = …; static const int imx208_test_pattern_val[] = …; /* Configurations for supported link frequencies */ #define IMX208_MHZ … #define IMX208_LINK_FREQ_384MHZ … #define IMX208_LINK_FREQ_96MHZ … #define IMX208_DATA_RATE_DOUBLE … #define IMX208_NUM_OF_LANES … #define IMX208_PIXEL_BITS … enum { … }; /* * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample * data rate => double data rate; number of lanes => 2; bits per pixel => 10 */ static u64 link_freq_to_pixel_rate(u64 f) { … } /* Menu items for LINK_FREQ V4L2 control */ static const s64 link_freq_menu_items[] = …; /* Link frequency configs */ static const struct imx208_link_freq_config link_freq_configs[] = …; /* Mode configs */ static const struct imx208_mode supported_modes[] = …; struct imx208 { … }; static inline struct imx208 *to_imx208(struct v4l2_subdev *_sd) { … } /* Get bayer order based on flip setting. */ static u32 imx208_get_format_code(struct imx208 *imx208) { … } /* Read registers up to 4 at a time */ static int imx208_read_reg(struct imx208 *imx208, u16 reg, u32 len, u32 *val) { … } /* Write registers up to 4 at a time */ static int imx208_write_reg(struct imx208 *imx208, u16 reg, u32 len, u32 val) { … } /* Write a list of registers */ static int imx208_write_regs(struct imx208 *imx208, const struct imx208_reg *regs, u32 len) { … } /* Open sub-device */ static int imx208_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { … } static int imx208_update_digital_gain(struct imx208 *imx208, u32 len, u32 val) { … } static int imx208_set_ctrl(struct v4l2_ctrl *ctrl) { … } static const struct v4l2_ctrl_ops imx208_ctrl_ops = …; static const struct v4l2_ctrl_config imx208_digital_gain_control = …; static int imx208_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { … } static int imx208_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { … } static void imx208_mode_to_pad_format(struct imx208 *imx208, const struct imx208_mode *mode, struct v4l2_subdev_format *fmt) { … } static int __imx208_get_pad_format(struct imx208 *imx208, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { … } static int imx208_get_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { … } static int imx208_set_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { … } static int imx208_identify_module(struct imx208 *imx208) { … } /* Start streaming */ static int imx208_start_streaming(struct imx208 *imx208) { … } /* Stop streaming */ static int imx208_stop_streaming(struct imx208 *imx208) { … } static int imx208_set_stream(struct v4l2_subdev *sd, int enable) { … } /* Verify chip ID */ static const struct v4l2_subdev_video_ops imx208_video_ops = …; static const struct v4l2_subdev_pad_ops imx208_pad_ops = …; static const struct v4l2_subdev_ops imx208_subdev_ops = …; static const struct v4l2_subdev_internal_ops imx208_internal_ops = …; static int imx208_read_otp(struct imx208 *imx208) { … } static ssize_t otp_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { … } static const BIN_ATTR_RO(otp, IMX208_OTP_SIZE); /* Initialize control handlers */ static int imx208_init_controls(struct imx208 *imx208) { … } static void imx208_free_controls(struct imx208 *imx208) { … } static int imx208_probe(struct i2c_client *client) { … } static void imx208_remove(struct i2c_client *client) { … } #ifdef CONFIG_ACPI static const struct acpi_device_id imx208_acpi_ids[] = …; MODULE_DEVICE_TABLE(acpi, imx208_acpi_ids); #endif static struct i2c_driver imx208_i2c_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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