/* SPDX-License-Identifier: GPL-2.0 */ /* * Allied Vision Technologies GmbH Alvium camera driver * * Copyright (C) 2023 Tommaso Merciai * Copyright (C) 2023 Martin Hecht * Copyright (C) 2023 Avnet EMG GmbH */ #ifndef ALVIUM_CSI2_H_ #define ALVIUM_CSI2_H_ #include #include #include #include #include #include #include #define REG_BCRM_V4L2 BIT(31) #define REG_BCRM_V4L2_8BIT(n) (REG_BCRM_V4L2 | CCI_REG8(n)) #define REG_BCRM_V4L2_16BIT(n) (REG_BCRM_V4L2 | CCI_REG16(n)) #define REG_BCRM_V4L2_32BIT(n) (REG_BCRM_V4L2 | CCI_REG32(n)) #define REG_BCRM_V4L2_64BIT(n) (REG_BCRM_V4L2 | CCI_REG64(n)) /* Basic Control Register Map register offsets (BCRM) */ #define REG_BCRM_MINOR_VERSION_R CCI_REG16(0x0000) #define REG_BCRM_MAJOR_VERSION_R CCI_REG16(0x0002) #define REG_BCRM_REG_ADDR_R CCI_REG16(0x0014) #define REG_BCRM_FEATURE_INQUIRY_R REG_BCRM_V4L2_64BIT(0x0008) #define REG_BCRM_DEVICE_FW_SPEC_VERSION_R REG_BCRM_V4L2_8BIT(0x0010) #define REG_BCRM_DEVICE_FW_MAJOR_VERSION_R REG_BCRM_V4L2_8BIT(0x0011) #define REG_BCRM_DEVICE_FW_MINOR_VERSION_R REG_BCRM_V4L2_16BIT(0x0012) #define REG_BCRM_DEVICE_FW_PATCH_VERSION_R REG_BCRM_V4L2_32BIT(0x0014) #define REG_BCRM_WRITE_HANDSHAKE_RW REG_BCRM_V4L2_8BIT(0x0018) /* Streaming Control Registers */ #define REG_BCRM_SUPPORTED_CSI2_LANE_COUNTS_R REG_BCRM_V4L2_8BIT(0x0040) #define REG_BCRM_CSI2_LANE_COUNT_RW REG_BCRM_V4L2_8BIT(0x0044) #define REG_BCRM_CSI2_CLOCK_MIN_R REG_BCRM_V4L2_32BIT(0x0048) #define REG_BCRM_CSI2_CLOCK_MAX_R REG_BCRM_V4L2_32BIT(0x004c) #define REG_BCRM_CSI2_CLOCK_RW REG_BCRM_V4L2_32BIT(0x0050) #define REG_BCRM_BUFFER_SIZE_R REG_BCRM_V4L2_32BIT(0x0054) #define REG_BCRM_IPU_X_MIN_W REG_BCRM_V4L2_32BIT(0x0058) #define REG_BCRM_IPU_X_MAX_W REG_BCRM_V4L2_32BIT(0x005c) #define REG_BCRM_IPU_X_INC_W REG_BCRM_V4L2_32BIT(0x0060) #define REG_BCRM_IPU_Y_MIN_W REG_BCRM_V4L2_32BIT(0x0064) #define REG_BCRM_IPU_Y_MAX_W REG_BCRM_V4L2_32BIT(0x0068) #define REG_BCRM_IPU_Y_INC_W REG_BCRM_V4L2_32BIT(0x006c) #define REG_BCRM_IPU_X_R REG_BCRM_V4L2_32BIT(0x0070) #define REG_BCRM_IPU_Y_R REG_BCRM_V4L2_32BIT(0x0074) #define REG_BCRM_PHY_RESET_RW REG_BCRM_V4L2_8BIT(0x0078) #define REG_BCRM_LP2HS_DELAY_RW REG_BCRM_V4L2_32BIT(0x007c) /* Acquisition Control Registers */ #define REG_BCRM_ACQUISITION_START_RW REG_BCRM_V4L2_8BIT(0x0080) #define REG_BCRM_ACQUISITION_STOP_RW REG_BCRM_V4L2_8BIT(0x0084) #define REG_BCRM_ACQUISITION_ABORT_RW REG_BCRM_V4L2_8BIT(0x0088) #define REG_BCRM_ACQUISITION_STATUS_R REG_BCRM_V4L2_8BIT(0x008c) #define REG_BCRM_ACQUISITION_FRAME_RATE_RW REG_BCRM_V4L2_64BIT(0x0090) #define REG_BCRM_ACQUISITION_FRAME_RATE_MIN_R REG_BCRM_V4L2_64BIT(0x0098) #define REG_BCRM_ACQUISITION_FRAME_RATE_MAX_R REG_BCRM_V4L2_64BIT(0x00a0) #define REG_BCRM_ACQUISITION_FRAME_RATE_INC_R REG_BCRM_V4L2_64BIT(0x00a8) #define REG_BCRM_ACQUISITION_FRAME_RATE_ENABLE_RW REG_BCRM_V4L2_8BIT(0x00b0) #define REG_BCRM_FRAME_START_TRIGGER_MODE_RW REG_BCRM_V4L2_8BIT(0x00b4) #define REG_BCRM_FRAME_START_TRIGGER_SOURCE_RW REG_BCRM_V4L2_8BIT(0x00b8) #define REG_BCRM_FRAME_START_TRIGGER_ACTIVATION_RW REG_BCRM_V4L2_8BIT(0x00bc) #define REG_BCRM_FRAME_START_TRIGGER_SOFTWARE_W REG_BCRM_V4L2_8BIT(0x00c0) #define REG_BCRM_FRAME_START_TRIGGER_DELAY_RW REG_BCRM_V4L2_32BIT(0x00c4) #define REG_BCRM_EXPOSURE_ACTIVE_LINE_MODE_RW REG_BCRM_V4L2_8BIT(0x00c8) #define REG_BCRM_EXPOSURE_ACTIVE_LINE_SELECTOR_RW REG_BCRM_V4L2_8BIT(0x00cc) #define REG_BCRM_LINE_CONFIGURATION_RW REG_BCRM_V4L2_32BIT(0x00d0) #define REG_BCRM_IMG_WIDTH_RW REG_BCRM_V4L2_32BIT(0x0100) #define REG_BCRM_IMG_WIDTH_MIN_R REG_BCRM_V4L2_32BIT(0x0104) #define REG_BCRM_IMG_WIDTH_MAX_R REG_BCRM_V4L2_32BIT(0x0108) #define REG_BCRM_IMG_WIDTH_INC_R REG_BCRM_V4L2_32BIT(0x010c) #define REG_BCRM_IMG_HEIGHT_RW REG_BCRM_V4L2_32BIT(0x0110) #define REG_BCRM_IMG_HEIGHT_MIN_R REG_BCRM_V4L2_32BIT(0x0114) #define REG_BCRM_IMG_HEIGHT_MAX_R REG_BCRM_V4L2_32BIT(0x0118) #define REG_BCRM_IMG_HEIGHT_INC_R REG_BCRM_V4L2_32BIT(0x011c) #define REG_BCRM_IMG_OFFSET_X_RW REG_BCRM_V4L2_32BIT(0x0120) #define REG_BCRM_IMG_OFFSET_X_MIN_R REG_BCRM_V4L2_32BIT(0x0124) #define REG_BCRM_IMG_OFFSET_X_MAX_R REG_BCRM_V4L2_32BIT(0x0128) #define REG_BCRM_IMG_OFFSET_X_INC_R REG_BCRM_V4L2_32BIT(0x012c) #define REG_BCRM_IMG_OFFSET_Y_RW REG_BCRM_V4L2_32BIT(0x0130) #define REG_BCRM_IMG_OFFSET_Y_MIN_R REG_BCRM_V4L2_32BIT(0x0134) #define REG_BCRM_IMG_OFFSET_Y_MAX_R REG_BCRM_V4L2_32BIT(0x0138) #define REG_BCRM_IMG_OFFSET_Y_INC_R REG_BCRM_V4L2_32BIT(0x013c) #define REG_BCRM_IMG_MIPI_DATA_FORMAT_RW REG_BCRM_V4L2_32BIT(0x0140) #define REG_BCRM_IMG_AVAILABLE_MIPI_DATA_FORMATS_R REG_BCRM_V4L2_64BIT(0x0148) #define REG_BCRM_IMG_BAYER_PATTERN_INQUIRY_R REG_BCRM_V4L2_8BIT(0x0150) #define REG_BCRM_IMG_BAYER_PATTERN_RW REG_BCRM_V4L2_8BIT(0x0154) #define REG_BCRM_IMG_REVERSE_X_RW REG_BCRM_V4L2_8BIT(0x0158) #define REG_BCRM_IMG_REVERSE_Y_RW REG_BCRM_V4L2_8BIT(0x015c) #define REG_BCRM_SENSOR_WIDTH_R REG_BCRM_V4L2_32BIT(0x0160) #define REG_BCRM_SENSOR_HEIGHT_R REG_BCRM_V4L2_32BIT(0x0164) #define REG_BCRM_WIDTH_MAX_R REG_BCRM_V4L2_32BIT(0x0168) #define REG_BCRM_HEIGHT_MAX_R REG_BCRM_V4L2_32BIT(0x016c) #define REG_BCRM_EXPOSURE_TIME_RW REG_BCRM_V4L2_64BIT(0x0180) #define REG_BCRM_EXPOSURE_TIME_MIN_R REG_BCRM_V4L2_64BIT(0x0188) #define REG_BCRM_EXPOSURE_TIME_MAX_R REG_BCRM_V4L2_64BIT(0x0190) #define REG_BCRM_EXPOSURE_TIME_INC_R REG_BCRM_V4L2_64BIT(0x0198) #define REG_BCRM_EXPOSURE_AUTO_RW REG_BCRM_V4L2_8BIT(0x01a0) #define REG_BCRM_INTENSITY_AUTO_PRECEDENCE_RW REG_BCRM_V4L2_8BIT(0x01a4) #define REG_BCRM_INTENSITY_AUTO_PRECEDENCE_VALUE_RW REG_BCRM_V4L2_32BIT(0x01a8) #define REG_BCRM_INTENSITY_AUTO_PRECEDENCE_MIN_R REG_BCRM_V4L2_32BIT(0x01ac) #define REG_BCRM_INTENSITY_AUTO_PRECEDENCE_MAX_R REG_BCRM_V4L2_32BIT(0x01b0) #define REG_BCRM_INTENSITY_AUTO_PRECEDENCE_INC_R REG_BCRM_V4L2_32BIT(0x01b4) #define REG_BCRM_BLACK_LEVEL_RW REG_BCRM_V4L2_32BIT(0x01b8) #define REG_BCRM_BLACK_LEVEL_MIN_R REG_BCRM_V4L2_32BIT(0x01bc) #define REG_BCRM_BLACK_LEVEL_MAX_R REG_BCRM_V4L2_32BIT(0x01c0) #define REG_BCRM_BLACK_LEVEL_INC_R REG_BCRM_V4L2_32BIT(0x01c4) #define REG_BCRM_GAIN_RW REG_BCRM_V4L2_64BIT(0x01c8) #define REG_BCRM_GAIN_MIN_R REG_BCRM_V4L2_64BIT(0x01d0) #define REG_BCRM_GAIN_MAX_R REG_BCRM_V4L2_64BIT(0x01d8) #define REG_BCRM_GAIN_INC_R REG_BCRM_V4L2_64BIT(0x01e0) #define REG_BCRM_GAIN_AUTO_RW REG_BCRM_V4L2_8BIT(0x01e8) #define REG_BCRM_GAMMA_RW REG_BCRM_V4L2_64BIT(0x01f0) #define REG_BCRM_GAMMA_MIN_R REG_BCRM_V4L2_64BIT(0x01f8) #define REG_BCRM_GAMMA_MAX_R REG_BCRM_V4L2_64BIT(0x0200) #define REG_BCRM_GAMMA_INC_R REG_BCRM_V4L2_64BIT(0x0208) #define REG_BCRM_CONTRAST_VALUE_RW REG_BCRM_V4L2_32BIT(0x0214) #define REG_BCRM_CONTRAST_VALUE_MIN_R REG_BCRM_V4L2_32BIT(0x0218) #define REG_BCRM_CONTRAST_VALUE_MAX_R REG_BCRM_V4L2_32BIT(0x021c) #define REG_BCRM_CONTRAST_VALUE_INC_R REG_BCRM_V4L2_32BIT(0x0220) #define REG_BCRM_SATURATION_RW REG_BCRM_V4L2_32BIT(0x0240) #define REG_BCRM_SATURATION_MIN_R REG_BCRM_V4L2_32BIT(0x0244) #define REG_BCRM_SATURATION_MAX_R REG_BCRM_V4L2_32BIT(0x0248) #define REG_BCRM_SATURATION_INC_R REG_BCRM_V4L2_32BIT(0x024c) #define REG_BCRM_HUE_RW REG_BCRM_V4L2_32BIT(0x0250) #define REG_BCRM_HUE_MIN_R REG_BCRM_V4L2_32BIT(0x0254) #define REG_BCRM_HUE_MAX_R REG_BCRM_V4L2_32BIT(0x0258) #define REG_BCRM_HUE_INC_R REG_BCRM_V4L2_32BIT(0x025c) #define REG_BCRM_ALL_BALANCE_RATIO_RW REG_BCRM_V4L2_64BIT(0x0260) #define REG_BCRM_ALL_BALANCE_RATIO_MIN_R REG_BCRM_V4L2_64BIT(0x0268) #define REG_BCRM_ALL_BALANCE_RATIO_MAX_R REG_BCRM_V4L2_64BIT(0x0270) #define REG_BCRM_ALL_BALANCE_RATIO_INC_R REG_BCRM_V4L2_64BIT(0x0278) #define REG_BCRM_RED_BALANCE_RATIO_RW REG_BCRM_V4L2_64BIT(0x0280) #define REG_BCRM_RED_BALANCE_RATIO_MIN_R REG_BCRM_V4L2_64BIT(0x0288) #define REG_BCRM_RED_BALANCE_RATIO_MAX_R REG_BCRM_V4L2_64BIT(0x0290) #define REG_BCRM_RED_BALANCE_RATIO_INC_R REG_BCRM_V4L2_64BIT(0x0298) #define REG_BCRM_GREEN_BALANCE_RATIO_RW REG_BCRM_V4L2_64BIT(0x02a0) #define REG_BCRM_GREEN_BALANCE_RATIO_MIN_R REG_BCRM_V4L2_64BIT(0x02a8) #define REG_BCRM_GREEN_BALANCE_RATIO_MAX_R REG_BCRM_V4L2_64BIT(0x02b0) #define REG_BCRM_GREEN_BALANCE_RATIO_INC_R REG_BCRM_V4L2_64BIT(0x02b8) #define REG_BCRM_BLUE_BALANCE_RATIO_RW REG_BCRM_V4L2_64BIT(0x02c0) #define REG_BCRM_BLUE_BALANCE_RATIO_MIN_R REG_BCRM_V4L2_64BIT(0x02c8) #define REG_BCRM_BLUE_BALANCE_RATIO_MAX_R REG_BCRM_V4L2_64BIT(0x02d0) #define REG_BCRM_BLUE_BALANCE_RATIO_INC_R REG_BCRM_V4L2_64BIT(0x02d8) #define REG_BCRM_WHITE_BALANCE_AUTO_RW REG_BCRM_V4L2_8BIT(0x02e0) #define REG_BCRM_SHARPNESS_RW REG_BCRM_V4L2_32BIT(0x0300) #define REG_BCRM_SHARPNESS_MIN_R REG_BCRM_V4L2_32BIT(0x0304) #define REG_BCRM_SHARPNESS_MAX_R REG_BCRM_V4L2_32BIT(0x0308) #define REG_BCRM_SHARPNESS_INC_R REG_BCRM_V4L2_32BIT(0x030c) #define REG_BCRM_DEVICE_TEMPERATURE_R REG_BCRM_V4L2_32BIT(0x0310) #define REG_BCRM_EXPOSURE_AUTO_MIN_RW REG_BCRM_V4L2_64BIT(0x0330) #define REG_BCRM_EXPOSURE_AUTO_MAX_RW REG_BCRM_V4L2_64BIT(0x0338) #define REG_BCRM_GAIN_AUTO_MIN_RW REG_BCRM_V4L2_64BIT(0x0340) #define REG_BCRM_GAIN_AUTO_MAX_RW REG_BCRM_V4L2_64BIT(0x0348) /* Heartbeat reg*/ #define REG_BCRM_HEARTBEAT_RW CCI_REG8(0x021f) /* GenCP Registers */ #define REG_GENCP_CHANGEMODE_W CCI_REG8(0x021c) #define REG_GENCP_CURRENTMODE_R CCI_REG8(0x021d) #define REG_GENCP_IN_HANDSHAKE_RW CCI_REG8(0x001c) #define REG_GENCP_OUT_SIZE_W CCI_REG16(0x0020) #define REG_GENCP_IN_SIZE_R CCI_REG16(0x0024) /* defines */ #define REG_BCRM_HANDSHAKE_STATUS_MASK 0x01 #define REG_BCRM_HANDSHAKE_AVAILABLE_MASK 0x80 #define BCRM_HANDSHAKE_W_DONE_EN_BIT BIT(0) #define ALVIUM_DEFAULT_FR_HZ 10 #define ALVIUM_DEFAULT_PIXEL_RATE_MHZ 148000000 #define ALVIUM_LP2HS_DELAY_MS 100 enum alvium_bcrm_mode { ALVIUM_BCM_MODE, ALVIUM_GENCP_MODE, ALVIUM_NUM_MODE }; enum alvium_mipi_fmt { ALVIUM_FMT_UYVY8_2X8 = 0, ALVIUM_FMT_UYVY8_1X16, ALVIUM_FMT_YUYV8_1X16, ALVIUM_FMT_YUYV8_2X8, ALVIUM_FMT_YUYV10_1X20, ALVIUM_FMT_RGB888_1X24, ALVIUM_FMT_RBG888_1X24, ALVIUM_FMT_BGR888_1X24, ALVIUM_FMT_RGB888_3X8, ALVIUM_FMT_Y8_1X8, ALVIUM_FMT_SGRBG8_1X8, ALVIUM_FMT_SRGGB8_1X8, ALVIUM_FMT_SGBRG8_1X8, ALVIUM_FMT_SBGGR8_1X8, ALVIUM_FMT_Y10_1X10, ALVIUM_FMT_SGRBG10_1X10, ALVIUM_FMT_SRGGB10_1X10, ALVIUM_FMT_SGBRG10_1X10, ALVIUM_FMT_SBGGR10_1X10, ALVIUM_FMT_Y12_1X12, ALVIUM_FMT_SGRBG12_1X12, ALVIUM_FMT_SRGGB12_1X12, ALVIUM_FMT_SGBRG12_1X12, ALVIUM_FMT_SBGGR12_1X12, ALVIUM_FMT_SBGGR14_1X14, ALVIUM_FMT_SGBRG14_1X14, ALVIUM_FMT_SRGGB14_1X14, ALVIUM_FMT_SGRBG14_1X14, ALVIUM_NUM_SUPP_MIPI_DATA_FMT }; enum alvium_av_bayer_bit { ALVIUM_BIT_BAY_NONE = -1, ALVIUM_BIT_BAY_MONO = 0, ALVIUM_BIT_BAY_GR, ALVIUM_BIT_BAY_RG, ALVIUM_BIT_BAY_GB, ALVIUM_BIT_BAY_BG, ALVIUM_NUM_BAY_AV_BIT }; enum alvium_av_mipi_bit { ALVIUM_BIT_YUV420_8_LEG = 0, ALVIUM_BIT_YUV420_8, ALVIUM_BIT_YUV420_10, ALVIUM_BIT_YUV420_8_CSPS, ALVIUM_BIT_YUV420_10_CSPS, ALVIUM_BIT_YUV422_8, ALVIUM_BIT_YUV422_10, ALVIUM_BIT_RGB888, ALVIUM_BIT_RGB666, ALVIUM_BIT_RGB565, ALVIUM_BIT_RGB555, ALVIUM_BIT_RGB444, ALVIUM_BIT_RAW6, ALVIUM_BIT_RAW7, ALVIUM_BIT_RAW8, ALVIUM_BIT_RAW10, ALVIUM_BIT_RAW12, ALVIUM_BIT_RAW14, ALVIUM_BIT_JPEG, ALVIUM_NUM_SUPP_MIPI_DATA_BIT }; struct alvium_avail_feat { u64 rev_x:1; u64 rev_y:1; u64 int_autop:1; u64 black_lvl:1; u64 gain:1; u64 gamma:1; u64 contrast:1; u64 sat:1; u64 hue:1; u64 whiteb:1; u64 sharp:1; u64 auto_exp:1; u64 auto_gain:1; u64 auto_whiteb:1; u64 dev_temp:1; u64 acq_abort:1; u64 acq_fr:1; u64 fr_trigger:1; u64 exp_acq_line:1; u64 reserved:45; }; struct alvium_avail_mipi_fmt { u64 yuv420_8_leg:1; u64 yuv420_8:1; u64 yuv420_10:1; u64 yuv420_8_csps:1; u64 yuv420_10_csps:1; u64 yuv422_8:1; u64 yuv422_10:1; u64 rgb888:1; u64 rgb666:1; u64 rgb565:1; u64 rgb555:1; u64 rgb444:1; u64 raw6:1; u64 raw7:1; u64 raw8:1; u64 raw10:1; u64 raw12:1; u64 raw14:1; u64 jpeg:1; u64 reserved:45; }; struct alvium_avail_bayer { u8 mono:1; u8 gr:1; u8 rg:1; u8 gb:1; u8 bg:1; u8 reserved:3; }; struct alvium_mode { struct v4l2_rect crop; struct v4l2_mbus_framefmt fmt; u32 width; u32 height; }; struct alvium_pixfmt { u32 code; u32 colorspace; u64 mipi_fmt_regval; u64 bay_fmt_regval; u8 id; u8 is_raw; u8 fmt_av_bit; u8 bay_av_bit; }; struct alvium_ctrls { struct v4l2_ctrl_handler handler; struct v4l2_ctrl *pixel_rate; struct v4l2_ctrl *link_freq; struct v4l2_ctrl *auto_exp; struct v4l2_ctrl *exposure; struct v4l2_ctrl *auto_wb; struct v4l2_ctrl *blue_balance; struct v4l2_ctrl *red_balance; struct v4l2_ctrl *auto_gain; struct v4l2_ctrl *gain; struct v4l2_ctrl *saturation; struct v4l2_ctrl *hue; struct v4l2_ctrl *contrast; struct v4l2_ctrl *gamma; struct v4l2_ctrl *sharpness; struct v4l2_ctrl *hflip; struct v4l2_ctrl *vflip; }; struct alvium_dev { struct i2c_client *i2c_client; struct v4l2_subdev sd; struct v4l2_fwnode_endpoint ep; struct media_pad pad; struct regmap *regmap; struct regulator *reg_vcc; u16 bcrm_addr; struct alvium_avail_feat avail_ft; u8 is_mipi_fmt_avail[ALVIUM_NUM_SUPP_MIPI_DATA_BIT]; u8 is_bay_avail[ALVIUM_NUM_BAY_AV_BIT]; u32 min_csi_clk; u32 max_csi_clk; u32 dft_img_width; u32 img_min_width; u32 img_max_width; u32 img_inc_width; u32 dft_img_height; u32 img_min_height; u32 img_max_height; u32 img_inc_height; u32 min_offx; u32 max_offx; u32 inc_offx; u32 min_offy; u32 max_offy; u32 inc_offy; u64 dft_gain; u64 min_gain; u64 max_gain; u64 inc_gain; u64 dft_exp; u64 min_exp; u64 max_exp; u64 inc_exp; u64 dft_rbalance; u64 min_rbalance; u64 max_rbalance; u64 inc_rbalance; u64 dft_bbalance; u64 min_bbalance; u64 max_bbalance; u64 inc_bbalance; s32 dft_hue; s32 min_hue; s32 max_hue; s32 inc_hue; u32 dft_contrast; u32 min_contrast; u32 max_contrast; u32 inc_contrast; u32 dft_sat; u32 min_sat; u32 max_sat; u32 inc_sat; s32 dft_black_lvl; s32 min_black_lvl; s32 max_black_lvl; s32 inc_black_lvl; u64 dft_gamma; u64 min_gamma; u64 max_gamma; u64 inc_gamma; s32 dft_sharp; s32 min_sharp; s32 max_sharp; s32 inc_sharp; struct alvium_mode mode; u8 h_sup_csi_lanes; u64 link_freq; struct alvium_ctrls ctrls; u8 bcrm_mode; struct alvium_pixfmt *alvium_csi2_fmt; u8 alvium_csi2_fmt_n; u8 streaming; u8 apply_fiv; }; static inline struct alvium_dev *sd_to_alvium(struct v4l2_subdev *sd) { return container_of_const(sd, struct alvium_dev, sd); } static inline struct v4l2_subdev *ctrl_to_sd(struct v4l2_ctrl *ctrl) { return &container_of_const(ctrl->handler, struct alvium_dev, ctrls.handler)->sd; } #endif /* ALVIUM_CSI2_H_ */