// SPDX-License-Identifier: GPL-2.0 /* * Driver for the OV7251 camera sensor. * * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. * Copyright (c) 2017-2018, Linaro Ltd. */ #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/mod_devicetable.h> #include <linux/pm_runtime.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 OV7251_SC_MODE_SELECT … #define OV7251_SC_MODE_SELECT_SW_STANDBY … #define OV7251_SC_MODE_SELECT_STREAMING … #define OV7251_CHIP_ID_HIGH … #define OV7251_CHIP_ID_HIGH_BYTE … #define OV7251_CHIP_ID_LOW … #define OV7251_CHIP_ID_LOW_BYTE … #define OV7251_SC_GP_IO_IN1 … #define OV7251_AEC_EXPO_0 … #define OV7251_AEC_EXPO_1 … #define OV7251_AEC_EXPO_2 … #define OV7251_AEC_AGC_ADJ_0 … #define OV7251_AEC_AGC_ADJ_1 … #define OV7251_TIMING_FORMAT1 … #define OV7251_TIMING_FORMAT1_VFLIP … #define OV7251_TIMING_FORMAT2 … #define OV7251_TIMING_FORMAT2_MIRROR … #define OV7251_PRE_ISP_00 … #define OV7251_PRE_ISP_00_TEST_PATTERN … #define OV7251_PLL1_PRE_DIV_REG … #define OV7251_PLL1_MULT_REG … #define OV7251_PLL1_DIVIDER_REG … #define OV7251_PLL1_PIX_DIV_REG … #define OV7251_PLL1_MIPI_DIV_REG … #define OV7251_PLL2_PRE_DIV_REG … #define OV7251_PLL2_MULT_REG … #define OV7251_PLL2_DIVIDER_REG … #define OV7251_PLL2_SYS_DIV_REG … #define OV7251_PLL2_ADC_DIV_REG … #define OV7251_NATIVE_WIDTH … #define OV7251_NATIVE_HEIGHT … #define OV7251_ACTIVE_START_LEFT … #define OV7251_ACTIVE_START_TOP … #define OV7251_ACTIVE_WIDTH … #define OV7251_ACTIVE_HEIGHT … #define OV7251_FIXED_PPL … #define OV7251_TIMING_VTS_REG … #define OV7251_TIMING_MIN_VTS … #define OV7251_TIMING_MAX_VTS … #define OV7251_INTEGRATION_MARGIN … struct reg_value { … }; struct ov7251_mode_info { … }; struct ov7251_pll1_cfg { … }; struct ov7251_pll2_cfg { … }; /* * Rubbish ordering, but only PLL1 needs to have a separate configuration per * link frequency and the array member needs to be last. */ struct ov7251_pll_cfgs { … }; enum xclk_rate { … }; enum supported_link_freqs { … }; struct ov7251 { … }; static inline struct ov7251 *to_ov7251(struct v4l2_subdev *sd) { … } static const struct ov7251_pll1_cfg ov7251_pll1_cfg_19_2_mhz_240_mhz = …; static const struct ov7251_pll1_cfg ov7251_pll1_cfg_19_2_mhz_319_2_mhz = …; static const struct ov7251_pll1_cfg ov7251_pll1_cfg_24_mhz_240_mhz = …; static const struct ov7251_pll1_cfg ov7251_pll1_cfg_24_mhz_319_2_mhz = …; static const struct ov7251_pll2_cfg ov7251_pll2_cfg_19_2_mhz = …; static const struct ov7251_pll2_cfg ov7251_pll2_cfg_24_mhz = …; static const struct ov7251_pll_cfgs ov7251_pll_cfgs_19_2_mhz = …; static const struct ov7251_pll_cfgs ov7251_pll_cfgs_24_mhz = …; static const struct ov7251_pll_cfgs *ov7251_pll_cfgs[] = …; static const struct reg_value ov7251_global_init_setting[] = …; static const struct reg_value ov7251_setting_vga_30fps[] = …; static const struct reg_value ov7251_setting_vga_60fps[] = …; static const struct reg_value ov7251_setting_vga_90fps[] = …; static const unsigned long supported_xclk_rates[] = …; static const s64 link_freq[] = …; static const s64 pixel_rates[] = …; static const struct ov7251_mode_info ov7251_mode_info_data[] = …; static int ov7251_regulators_enable(struct ov7251 *ov7251) { … } static void ov7251_regulators_disable(struct ov7251 *ov7251) { … } static int ov7251_write_reg(struct ov7251 *ov7251, u16 reg, u8 val) { … } static int ov7251_write_seq_regs(struct ov7251 *ov7251, u16 reg, u8 *val, u8 num) { … } static int ov7251_read_reg(struct ov7251 *ov7251, u16 reg, u8 *val) { … } static int ov7251_pll_configure(struct ov7251 *ov7251) { … } static int ov7251_set_exposure(struct ov7251 *ov7251, s32 exposure) { … } static int ov7251_set_gain(struct ov7251 *ov7251, s32 gain) { … } static int ov7251_set_register_array(struct ov7251 *ov7251, const struct reg_value *settings, unsigned int num_settings) { … } static int ov7251_set_power_on(struct device *dev) { … } static int ov7251_set_power_off(struct device *dev) { … } static int ov7251_set_hflip(struct ov7251 *ov7251, s32 value) { … } static int ov7251_set_vflip(struct ov7251 *ov7251, s32 value) { … } static int ov7251_set_test_pattern(struct ov7251 *ov7251, s32 value) { … } static const char * const ov7251_test_pattern_menu[] = …; static int ov7251_vts_configure(struct ov7251 *ov7251, s32 vblank) { … } static int ov7251_s_ctrl(struct v4l2_ctrl *ctrl) { … } static const struct v4l2_ctrl_ops ov7251_ctrl_ops = …; static int ov7251_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { … } static int ov7251_enum_frame_size(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { … } static int ov7251_enum_frame_ival(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval_enum *fie) { … } static struct v4l2_mbus_framefmt * __ov7251_get_pad_format(struct ov7251 *ov7251, struct v4l2_subdev_state *sd_state, unsigned int pad, enum v4l2_subdev_format_whence which) { … } static int ov7251_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } static struct v4l2_rect * __ov7251_get_pad_crop(struct ov7251 *ov7251, struct v4l2_subdev_state *sd_state, unsigned int pad, enum v4l2_subdev_format_whence which) { … } static inline u32 avg_fps(const struct v4l2_fract *t) { … } static const struct ov7251_mode_info * ov7251_find_mode_by_ival(struct ov7251 *ov7251, struct v4l2_fract *timeperframe) { … } static int ov7251_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } static int ov7251_init_state(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state) { … } static int ov7251_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { … } static int ov7251_s_stream(struct v4l2_subdev *subdev, int enable) { … } static int ov7251_get_frame_interval(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval *fi) { … } static int ov7251_set_frame_interval(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval *fi) { … } static const struct v4l2_subdev_video_ops ov7251_video_ops = …; static const struct v4l2_subdev_pad_ops ov7251_subdev_pad_ops = …; static const struct v4l2_subdev_ops ov7251_subdev_ops = …; static const struct v4l2_subdev_internal_ops ov7251_internal_ops = …; static int ov7251_check_hwcfg(struct ov7251 *ov7251) { … } static int ov7251_detect_chip(struct ov7251 *ov7251) { … } static int ov7251_init_ctrls(struct ov7251 *ov7251) { … } static int ov7251_probe(struct i2c_client *client) { … } static void ov7251_remove(struct i2c_client *client) { … } static const struct dev_pm_ops ov7251_pm_ops = …; static const struct of_device_id ov7251_of_match[] = …; MODULE_DEVICE_TABLE(of, ov7251_of_match); static const struct acpi_device_id ov7251_acpi_match[] = …; MODULE_DEVICE_TABLE(acpi, ov7251_acpi_match); static struct i2c_driver ov7251_i2c_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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