/* SPDX-License-Identifier: GPL-2.0 */ /* * Microchip Image Sensor Controller (ISC) driver header file * * Copyright (C) 2016-2019 Microchip Technology, Inc. * * Author: Songjun Wu * Author: Eugen Hristev <[email protected]> * */ #ifndef _MICROCHIP_ISC_H_ #include <linux/clk-provider.h> #include <linux/platform_device.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/videobuf2-dma-contig.h> #define ISC_CLK_MAX_DIV … enum isc_clk_id { … }; struct isc_clk { … }; #define to_isc_clk(v) … struct isc_buffer { … }; struct isc_subdev_entity { … }; /* * struct isc_format - ISC media bus format information This structure represents the interface between the ISC and the sensor. It's the input format received by the ISC. * @fourcc: Fourcc code for this format * @mbus_code: V4L2 media bus format code. * @cfa_baycfg: If this format is RAW BAYER, indicate the type of bayer. this is either BGBG, RGRG, etc. * @pfe_cfg0_bps: Number of hardware data lines connected to the ISC * @raw: If the format is raw bayer. */ struct isc_format { … }; /* Pipeline bitmap */ #define DPC_DPCENABLE … #define DPC_GDCENABLE … #define DPC_BLCENABLE … #define WB_ENABLE … #define CFA_ENABLE … #define CC_ENABLE … #define GAM_ENABLE … #define GAM_BENABLE … #define GAM_GENABLE … #define GAM_RENABLE … #define VHXS_ENABLE … #define CSC_ENABLE … #define CBC_ENABLE … #define SUB422_ENABLE … #define SUB420_ENABLE … #define GAM_ENABLES … /* * struct fmt_config - ISC format configuration and internal pipeline This structure represents the internal configuration of the ISC. It also holds the format that ISC will present to v4l2. * @sd_format: Pointer to an isc_format struct that holds the sensor configuration. * @fourcc: Fourcc code for this format. * @bpp: Bytes per pixel in the current format. * @bpp_v4l2: Bytes per pixel in the current format, for v4l2. This differs from 'bpp' in the sense that in planar formats, it refers only to the first plane. * @rlp_cfg_mode: Configuration of the RLP (rounding, limiting packaging) * @dcfg_imode: Configuration of the input of the DMA module * @dctrl_dview: Configuration of the output of the DMA module * @bits_pipeline: Configuration of the pipeline, which modules are enabled */ struct fmt_config { … }; #define HIST_ENTRIES … #define HIST_BAYER … enum{ … }; struct isc_ctrls { … }; #define ISC_PIPE_LINE_NODE_NUM … /* * struct isc_reg_offsets - ISC device register offsets * @csc: Offset for the CSC register * @cbc: Offset for the CBC register * @sub422: Offset for the SUB422 register * @sub420: Offset for the SUB420 register * @rlp: Offset for the RLP register * @his: Offset for the HIS related registers * @dma: Offset for the DMA related registers * @version: Offset for the version register * @his_entry: Offset for the HIS entries registers */ struct isc_reg_offsets { … }; enum isc_mc_pads { … }; enum isc_scaler_pads { … }; /* * struct isc_device - ISC device driver data/config struct * @regmap: Register map * @hclock: Hclock clock input (refer datasheet) * @ispck: iscpck clock (refer datasheet) * @isc_clks: ISC clocks * @ispck_required: ISC requires ISP Clock initialization * @dcfg: DMA master configuration, architecture dependent * * @dev: Registered device driver * @v4l2_dev: v4l2 registered device * @video_dev: registered video device * * @vb2_vidq: video buffer 2 video queue * @dma_queue_lock: lock to serialize the dma buffer queue * @dma_queue: the queue for dma buffers * @cur_frm: current isc frame/buffer * @sequence: current frame number * @stop: true if isc is not streaming, false if streaming * @comp: completion reference that signals frame completion * * @fmt: current v42l format * @try_fmt: current v4l2 try format * * @config: current ISC format configuration * @try_config: the current ISC try format , not yet activated * * @ctrls: holds information about ISC controls * @do_wb_ctrl: control regarding the DO_WHITE_BALANCE button * @awb_work: workqueue reference for autowhitebalance histogram * analysis * * @lock: lock for serializing userspace file operations * with ISC operations * @awb_mutex: serialize access to streaming status from awb work queue * @awb_lock: lock for serializing awb work queue operations * with DMA/buffer operations * * @pipeline: configuration of the ISC pipeline * * @current_subdev: current subdevice: the sensor * @subdev_entities: list of subdevice entitites * * @gamma_table: pointer to the table with gamma values, has * gamma_max sets of GAMMA_ENTRIES entries each * @gamma_max: maximum number of sets of inside the gamma_table * * @max_width: maximum frame width, dependent on the internal RAM * @max_height: maximum frame height, dependent on the internal RAM * * @config_dpc: pointer to a function that initializes product * specific DPC module * @config_csc: pointer to a function that initializes product * specific CSC module * @config_cbc: pointer to a function that initializes product * specific CBC module * @config_cc: pointer to a function that initializes product * specific CC module * @config_gam: pointer to a function that initializes product * specific GAMMA module * @config_rlp: pointer to a function that initializes product * specific RLP module * @config_ctrls: pointer to a functoin that initializes product * specific v4l2 controls. * * @adapt_pipeline: pointer to a function that adapts the pipeline bits * to the product specific pipeline * * @offsets: struct holding the product specific register offsets * @controller_formats: pointer to the array of possible formats that the * controller can output * @formats_list: pointer to the array of possible formats that can * be used as an input to the controller * @controller_formats_size: size of controller_formats array * @formats_list_size: size of formats_list array * @pads: media controller pads for isc video entity * @mdev: media device that is registered by the isc * @mpipe: media device pipeline used by the isc * @remote_pad: remote pad on the connected subdevice * @scaler_sd: subdevice for the scaler that isc registers * @scaler_pads: media controller pads for the scaler subdevice * @scaler_format: current format for the scaler subdevice */ struct isc_device { … }; extern const struct regmap_config microchip_isc_regmap_config; extern const struct v4l2_async_notifier_operations microchip_isc_async_ops; irqreturn_t microchip_isc_interrupt(int irq, void *dev_id); int microchip_isc_pipeline_init(struct isc_device *isc); int microchip_isc_clk_init(struct isc_device *isc); void microchip_isc_subdev_cleanup(struct isc_device *isc); void microchip_isc_clk_cleanup(struct isc_device *isc); int isc_scaler_link(struct isc_device *isc); int isc_scaler_init(struct isc_device *isc); int isc_mc_init(struct isc_device *isc, u32 ver); void isc_mc_cleanup(struct isc_device *isc); struct isc_format *isc_find_format_by_code(struct isc_device *isc, unsigned int code, int *index); #endif
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