/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) STMicroelectronics SA 2014 * Authors: Fabien Dessenne <[email protected]> for STMicroelectronics. */ #include <linux/clk.h> #include <linux/ktime.h> #include <linux/platform_device.h> #include <linux/spinlock.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-mem2mem.h> #include <media/videobuf2-dma-contig.h> #define BDISP_NAME … /* * Max nb of nodes in node-list: * - 2 nodes to handle wide 4K pictures * - 2 nodes to handle two planes (Y & CbCr) */ #define MAX_OUTPUT_PLANES … #define MAX_VERTICAL_STRIDES … #define MAX_NB_NODE … /* struct bdisp_ctrls - bdisp control set * @hflip: horizontal flip * @vflip: vertical flip */ struct bdisp_ctrls { … }; /** * struct bdisp_fmt - driver's internal color format data * @pixelformat:fourcc code for this format * @nb_planes: number of planes (ex: [0]=RGB/Y - [1]=Cb/Cr, ...) * @bpp: bits per pixel (general) * @bpp_plane0: byte per pixel for the 1st plane * @w_align: width alignment in pixel (multiple of) * @h_align: height alignment in pixel (multiple of) */ struct bdisp_fmt { … }; /** * struct bdisp_frame - frame properties * * @width: frame width (including padding) * @height: frame height (including padding) * @fmt: pointer to frame format descriptor * @field: frame / field type * @bytesperline: stride of the 1st plane * @sizeimage: image size in bytes * @colorspace: colorspace * @crop: crop area * @paddr: image physical addresses per plane ([0]=RGB/Y - [1]=Cb/Cr, ...) */ struct bdisp_frame { … }; /** * struct bdisp_request - bdisp request * * @src: source frame properties * @dst: destination frame properties * @hflip: horizontal flip * @vflip: vertical flip * @nb_req: number of run request */ struct bdisp_request { … }; /** * struct bdisp_ctx - device context data * * @src: source frame properties * @dst: destination frame properties * @state: flags to keep track of user configuration * @hflip: horizontal flip * @vflip: vertical flip * @bdisp_dev: the device this context applies to * @node: node array * @node_paddr: node physical address array * @fh: v4l2 file handle * @ctrl_handler: v4l2 controls handler * @bdisp_ctrls: bdisp control set * @ctrls_rdy: true if the control handler is initialized */ struct bdisp_ctx { … }; /** * struct bdisp_m2m_device - v4l2 memory-to-memory device data * * @vdev: video device node for v4l2 m2m mode * @m2m_dev: v4l2 m2m device data * @ctx: hardware context data * @refcnt: reference counter */ struct bdisp_m2m_device { … }; /** * struct bdisp_dbg - debug info * * @debugfs_entry: debugfs * @copy_node: array of last used nodes * @copy_request: last bdisp request * @hw_start: start time of last HW request * @last_duration: last HW processing duration in microsecs * @min_duration: min HW processing duration in microsecs * @max_duration: max HW processing duration in microsecs * @tot_duration: total HW processing duration in microsecs */ struct bdisp_dbg { … }; /** * struct bdisp_dev - abstraction for bdisp entity * * @v4l2_dev: v4l2 device * @vdev: video device * @pdev: platform device * @dev: device * @lock: mutex protecting this data structure * @slock: spinlock protecting this data structure * @id: device index * @m2m: memory-to-memory V4L2 device information * @state: flags used to synchronize m2m and capture mode operation * @clock: IP clock * @regs: registers * @irq_queue: interrupt handler waitqueue * @work_queue: workqueue to handle timeouts * @timeout_work: IRQ timeout structure * @dbg: debug info */ struct bdisp_dev { … }; void bdisp_hw_free_nodes(struct bdisp_ctx *ctx); int bdisp_hw_alloc_nodes(struct bdisp_ctx *ctx); void bdisp_hw_free_filters(struct device *dev); int bdisp_hw_alloc_filters(struct device *dev); int bdisp_hw_reset(struct bdisp_dev *bdisp); int bdisp_hw_get_and_clear_irq(struct bdisp_dev *bdisp); int bdisp_hw_update(struct bdisp_ctx *ctx); void bdisp_debugfs_remove(struct bdisp_dev *bdisp); void bdisp_debugfs_create(struct bdisp_dev *bdisp); void bdisp_dbg_perf_begin(struct bdisp_dev *bdisp); void bdisp_dbg_perf_end(struct bdisp_dev *bdisp);
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