// SPDX-License-Identifier: GPL-2.0-only /* * Sony imx335 Camera Sensor Driver * * Copyright (C) 2021 Intel Corporation */ #include <asm/unaligned.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <media/v4l2-cci.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-subdev.h> /* Streaming Mode */ #define IMX335_REG_MODE_SELECT … #define IMX335_MODE_STANDBY … #define IMX335_MODE_STREAMING … /* Group hold register */ #define IMX335_REG_HOLD … #define IMX335_REG_MASTER_MODE … #define IMX335_REG_BCWAIT_TIME … #define IMX335_REG_CPWAIT_TIME … #define IMX335_REG_WINMODE … #define IMX335_REG_HTRIMMING_START … #define IMX335_REG_HNUM … /* Lines per frame */ #define IMX335_REG_VMAX … #define IMX335_REG_OPB_SIZE_V … #define IMX335_REG_ADBIT … #define IMX335_REG_Y_OUT_SIZE … #define IMX335_REG_SHUTTER … #define IMX335_EXPOSURE_MIN … #define IMX335_EXPOSURE_OFFSET … #define IMX335_EXPOSURE_STEP … #define IMX335_EXPOSURE_DEFAULT … #define IMX335_REG_AREA3_ST_ADR_1 … #define IMX335_REG_AREA3_WIDTH_1 … /* Analog and Digital gain control */ #define IMX335_REG_GAIN … #define IMX335_AGAIN_MIN … #define IMX335_AGAIN_MAX … #define IMX335_AGAIN_STEP … #define IMX335_AGAIN_DEFAULT … #define IMX335_REG_TPG_TESTCLKEN … #define IMX335_REG_INCLKSEL1 … #define IMX335_REG_INCLKSEL2 … #define IMX335_REG_INCLKSEL3 … #define IMX335_REG_INCLKSEL4 … #define IMX335_REG_MDBIT … #define IMX335_REG_SYSMODE … #define IMX335_REG_XVS_XHS_DRV … /* Test pattern generator */ #define IMX335_REG_TPG_DIG_CLP_MODE … #define IMX335_REG_TPG_EN_DUOUT … #define IMX335_REG_TPG … #define IMX335_TPG_ALL_000 … #define IMX335_TPG_ALL_FFF … #define IMX335_TPG_ALL_555 … #define IMX335_TPG_ALL_AAA … #define IMX335_TPG_TOG_555_AAA … #define IMX335_TPG_TOG_AAA_555 … #define IMX335_TPG_TOG_000_555 … #define IMX335_TPG_TOG_555_000 … #define IMX335_TPG_TOG_000_FFF … #define IMX335_TPG_TOG_FFF_000 … #define IMX335_TPG_H_COLOR_BARS … #define IMX335_TPG_V_COLOR_BARS … #define IMX335_REG_TPG_COLORWIDTH … #define IMX335_REG_BLKLEVEL … #define IMX335_REG_WRJ_OPEN … #define IMX335_REG_ADBIT1 … /* Chip ID */ #define IMX335_REG_ID … #define IMX335_ID … /* Data Lanes */ #define IMX335_REG_LANEMODE … #define IMX335_2LANE … #define IMX335_4LANE … #define IMX335_REG_TCLKPOST … #define IMX335_REG_TCLKPREPARE … #define IMX335_REG_TCLK_TRAIL … #define IMX335_REG_TCLK_ZERO … #define IMX335_REG_THS_PREPARE … #define IMX335_REG_THS_ZERO … #define IMX335_REG_THS_TRAIL … #define IMX335_REG_THS_EXIT … #define IMX335_REG_TPLX … /* Input clock rate */ #define IMX335_INCLK_RATE … /* CSI2 HW configuration */ #define IMX335_LINK_FREQ_594MHz … #define IMX335_LINK_FREQ_445MHz … #define IMX335_NUM_DATA_LANES … /* IMX335 native and active pixel array size. */ #define IMX335_NATIVE_WIDTH … #define IMX335_NATIVE_HEIGHT … #define IMX335_PIXEL_ARRAY_LEFT … #define IMX335_PIXEL_ARRAY_TOP … #define IMX335_PIXEL_ARRAY_WIDTH … #define IMX335_PIXEL_ARRAY_HEIGHT … /** * struct imx335_reg_list - imx335 sensor register list * @num_of_regs: Number of registers in the list * @regs: Pointer to register list */ struct imx335_reg_list { … }; static const char * const imx335_supply_name[] = …; /** * struct imx335_mode - imx335 sensor mode structure * @width: Frame width * @height: Frame height * @code: Format code * @hblank: Horizontal blanking in lines * @vblank: Vertical blanking in lines * @vblank_min: Minimum vertical blanking in lines * @vblank_max: Maximum vertical blanking in lines * @pclk: Sensor pixel clock * @reg_list: Register list for sensor mode */ struct imx335_mode { … }; /** * struct imx335 - imx335 sensor device structure * @dev: Pointer to generic device * @client: Pointer to i2c client * @sd: V4L2 sub-device * @pad: Media pad. Only one pad supported * @reset_gpio: Sensor reset gpio * @supplies: Regulator supplies to handle power control * @cci: CCI register map * @inclk: Sensor input clock * @ctrl_handler: V4L2 control handler * @link_freq_ctrl: Pointer to link frequency control * @pclk_ctrl: Pointer to pixel clock control * @hblank_ctrl: Pointer to horizontal blanking control * @vblank_ctrl: Pointer to vertical blanking control * @exp_ctrl: Pointer to exposure control * @again_ctrl: Pointer to analog gain control * @vblank: Vertical blanking in lines * @lane_mode: Mode for number of connected data lanes * @cur_mode: Pointer to current selected sensor mode * @mutex: Mutex for serializing sensor controls * @link_freq_bitmap: Menu bitmap for link_freq_ctrl * @cur_mbus_code: Currently selected media bus format code */ struct imx335 { … }; static const char * const imx335_tpg_menu[] = …; static const int imx335_tpg_val[] = …; /* Sensor mode registers */ static const struct cci_reg_sequence mode_2592x1940_regs[] = …; static const struct cci_reg_sequence raw10_framefmt_regs[] = …; static const struct cci_reg_sequence raw12_framefmt_regs[] = …; static const struct cci_reg_sequence mipi_data_rate_1188Mbps[] = …; static const struct cci_reg_sequence mipi_data_rate_891Mbps[] = …; static const s64 link_freq[] = …; static const struct imx335_reg_list link_freq_reglist[] = …; static const u32 imx335_mbus_codes[] = …; /* Supported sensor mode configurations */ static const struct imx335_mode supported_mode = …; /** * to_imx335() - imx335 V4L2 sub-device to imx335 device. * @subdev: pointer to imx335 V4L2 sub-device * * Return: pointer to imx335 device */ static inline struct imx335 *to_imx335(struct v4l2_subdev *subdev) { … } /** * imx335_update_controls() - Update control ranges based on streaming mode * @imx335: pointer to imx335 device * @mode: pointer to imx335_mode sensor mode * * Return: 0 if successful, error code otherwise. */ static int imx335_update_controls(struct imx335 *imx335, const struct imx335_mode *mode) { … } /** * imx335_update_exp_gain() - Set updated exposure and gain * @imx335: pointer to imx335 device * @exposure: updated exposure value * @gain: updated analog gain value * * Return: 0 if successful, error code otherwise. */ static int imx335_update_exp_gain(struct imx335 *imx335, u32 exposure, u32 gain) { … } static int imx335_update_test_pattern(struct imx335 *imx335, u32 pattern_index) { … } /** * imx335_set_ctrl() - Set subdevice control * @ctrl: pointer to v4l2_ctrl structure * * Supported controls: * - V4L2_CID_VBLANK * - cluster controls: * - V4L2_CID_ANALOGUE_GAIN * - V4L2_CID_EXPOSURE * * Return: 0 if successful, error code otherwise. */ static int imx335_set_ctrl(struct v4l2_ctrl *ctrl) { … } /* V4l2 subdevice control ops*/ static const struct v4l2_ctrl_ops imx335_ctrl_ops = …; static int imx335_get_format_code(struct imx335 *imx335, u32 code) { … } /** * imx335_enum_mbus_code() - Enumerate V4L2 sub-device mbus codes * @sd: pointer to imx335 V4L2 sub-device structure * @sd_state: V4L2 sub-device configuration * @code: V4L2 sub-device code enumeration need to be filled * * Return: 0 if successful, error code otherwise. */ static int imx335_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { … } /** * imx335_enum_frame_size() - Enumerate V4L2 sub-device frame sizes * @sd: pointer to imx335 V4L2 sub-device structure * @sd_state: V4L2 sub-device configuration * @fsize: V4L2 sub-device size enumeration need to be filled * * Return: 0 if successful, error code otherwise. */ static int imx335_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fsize) { … } /** * imx335_fill_pad_format() - Fill subdevice pad format * from selected sensor mode * @imx335: pointer to imx335 device * @mode: pointer to imx335_mode sensor mode * @fmt: V4L2 sub-device format need to be filled */ static void imx335_fill_pad_format(struct imx335 *imx335, const struct imx335_mode *mode, struct v4l2_subdev_format *fmt) { … } /** * imx335_get_pad_format() - Get subdevice pad format * @sd: pointer to imx335 V4L2 sub-device structure * @sd_state: V4L2 sub-device configuration * @fmt: V4L2 sub-device format need to be set * * Return: 0 if successful, error code otherwise. */ static int imx335_get_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { … } /** * imx335_set_pad_format() - Set subdevice pad format * @sd: pointer to imx335 V4L2 sub-device structure * @sd_state: V4L2 sub-device configuration * @fmt: V4L2 sub-device format need to be set * * Return: 0 if successful, error code otherwise. */ static int imx335_set_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { … } /** * imx335_init_state() - Initialize sub-device state * @sd: pointer to imx335 V4L2 sub-device structure * @sd_state: V4L2 sub-device configuration * * Return: 0 if successful, error code otherwise. */ static int imx335_init_state(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state) { … } /** * imx335_get_selection() - Selection API * @sd: pointer to imx335 V4L2 sub-device structure * @sd_state: V4L2 sub-device configuration * @sel: V4L2 selection info * * Return: 0 if successful, error code otherwise. */ static int imx335_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { … } static int imx335_set_framefmt(struct imx335 *imx335) { … } /** * imx335_start_streaming() - Start sensor stream * @imx335: pointer to imx335 device * * Return: 0 if successful, error code otherwise. */ static int imx335_start_streaming(struct imx335 *imx335) { … } /** * imx335_stop_streaming() - Stop sensor stream * @imx335: pointer to imx335 device * * Return: 0 if successful, error code otherwise. */ static int imx335_stop_streaming(struct imx335 *imx335) { … } /** * imx335_set_stream() - Enable sensor streaming * @sd: pointer to imx335 subdevice * @enable: set to enable sensor streaming * * Return: 0 if successful, error code otherwise. */ static int imx335_set_stream(struct v4l2_subdev *sd, int enable) { … } /** * imx335_detect() - Detect imx335 sensor * @imx335: pointer to imx335 device * * Return: 0 if successful, -EIO if sensor id does not match */ static int imx335_detect(struct imx335 *imx335) { … } /** * imx335_parse_hw_config() - Parse HW configuration and check if supported * @imx335: pointer to imx335 device * * Return: 0 if successful, error code otherwise. */ static int imx335_parse_hw_config(struct imx335 *imx335) { … } /* V4l2 subdevice ops */ static const struct v4l2_subdev_video_ops imx335_video_ops = …; static const struct v4l2_subdev_pad_ops imx335_pad_ops = …; static const struct v4l2_subdev_ops imx335_subdev_ops = …; static const struct v4l2_subdev_internal_ops imx335_internal_ops = …; /** * imx335_power_on() - Sensor power on sequence * @dev: pointer to i2c device * * Return: 0 if successful, error code otherwise. */ static int imx335_power_on(struct device *dev) { … } /** * imx335_power_off() - Sensor power off sequence * @dev: pointer to i2c device * * Return: 0 if successful, error code otherwise. */ static int imx335_power_off(struct device *dev) { … } /** * imx335_init_controls() - Initialize sensor subdevice controls * @imx335: pointer to imx335 device * * Return: 0 if successful, error code otherwise. */ static int imx335_init_controls(struct imx335 *imx335) { … } /** * imx335_probe() - I2C client device binding * @client: pointer to i2c client device * * Return: 0 if successful, error code otherwise. */ static int imx335_probe(struct i2c_client *client) { … } /** * imx335_remove() - I2C client device unbinding * @client: pointer to I2C client device * * Return: 0 if successful, error code otherwise. */ static void imx335_remove(struct i2c_client *client) { … } static const struct dev_pm_ops imx335_pm_ops = …; static const struct of_device_id imx335_of_match[] = …; MODULE_DEVICE_TABLE(of, imx335_of_match); static struct i2c_driver imx335_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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