// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2012 Samsung Electronics Co.Ltd * Authors: * Eunchul Kim <[email protected]> * Jinyoung Jeon <[email protected]> * Sangmin Lee <[email protected]> */ #include <linux/clk.h> #include <linux/component.h> #include <linux/kernel.h> #include <linux/mfd/syscon.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/spinlock.h> #include <drm/drm_fourcc.h> #include <drm/drm_print.h> #include <drm/exynos_drm.h> #include "exynos_drm_drv.h" #include "exynos_drm_ipp.h" #include "regs-fimc.h" /* * FIMC stands for Fully Interactive Mobile Camera and * supports image scaler/rotator and input/output DMA operations. * input DMA reads image data from the memory. * output DMA writes image data to memory. * FIMC supports image rotation and image effect functions. */ #define FIMC_MAX_DEVS … #define FIMC_MAX_SRC … #define FIMC_MAX_DST … #define FIMC_SHFACTOR … #define FIMC_BUF_STOP … #define FIMC_BUF_START … #define FIMC_WIDTH_ITU_709 … #define FIMC_AUTOSUSPEND_DELAY … static unsigned int fimc_mask = …; module_param_named(fimc_devs, fimc_mask, uint, 0644); MODULE_PARM_DESC(…) …; #define get_fimc_context(dev) … enum { … }; static const char * const fimc_clock_names[] = …; /* * A structure of scaler. * * @range: narrow, wide. * @bypass: unused scaler path. * @up_h: horizontal scale up. * @up_v: vertical scale up. * @hratio: horizontal ratio. * @vratio: vertical ratio. */ struct fimc_scaler { … }; /* * A structure of fimc context. * * @regs: memory mapped io registers. * @lock: locking of operations. * @clocks: fimc clocks. * @sc: scaler infomations. * @pol: porarity of writeback. * @id: fimc id. * @irq: irq number. */ struct fimc_context { … }; static u32 fimc_read(struct fimc_context *ctx, u32 reg) { … } static void fimc_write(struct fimc_context *ctx, u32 val, u32 reg) { … } static void fimc_set_bits(struct fimc_context *ctx, u32 reg, u32 bits) { … } static void fimc_clear_bits(struct fimc_context *ctx, u32 reg, u32 bits) { … } static void fimc_sw_reset(struct fimc_context *ctx) { … } static void fimc_set_type_ctrl(struct fimc_context *ctx) { … } static void fimc_handle_jpeg(struct fimc_context *ctx, bool enable) { … } static void fimc_mask_irq(struct fimc_context *ctx, bool enable) { … } static void fimc_clear_irq(struct fimc_context *ctx) { … } static bool fimc_check_ovf(struct fimc_context *ctx) { … } static bool fimc_check_frame_end(struct fimc_context *ctx) { … } static int fimc_get_buf_id(struct fimc_context *ctx) { … } static void fimc_handle_lastend(struct fimc_context *ctx, bool enable) { … } static void fimc_src_set_fmt_order(struct fimc_context *ctx, u32 fmt) { … } static void fimc_src_set_fmt(struct fimc_context *ctx, u32 fmt, bool tiled) { … } static void fimc_src_set_transf(struct fimc_context *ctx, unsigned int rotation) { … } static void fimc_set_window(struct fimc_context *ctx, struct exynos_drm_ipp_buffer *buf) { … } static void fimc_src_set_size(struct fimc_context *ctx, struct exynos_drm_ipp_buffer *buf) { … } static void fimc_src_set_addr(struct fimc_context *ctx, struct exynos_drm_ipp_buffer *buf) { … } static void fimc_dst_set_fmt_order(struct fimc_context *ctx, u32 fmt) { … } static void fimc_dst_set_fmt(struct fimc_context *ctx, u32 fmt, bool tiled) { … } static void fimc_dst_set_transf(struct fimc_context *ctx, unsigned int rotation) { … } static int fimc_set_prescaler(struct fimc_context *ctx, struct fimc_scaler *sc, struct drm_exynos_ipp_task_rect *src, struct drm_exynos_ipp_task_rect *dst) { … } static void fimc_set_scaler(struct fimc_context *ctx, struct fimc_scaler *sc) { … } static void fimc_dst_set_size(struct fimc_context *ctx, struct exynos_drm_ipp_buffer *buf) { … } static void fimc_dst_set_buf_seq(struct fimc_context *ctx, u32 buf_id, bool enqueue) { … } static void fimc_dst_set_addr(struct fimc_context *ctx, struct exynos_drm_ipp_buffer *buf) { … } static void fimc_stop(struct fimc_context *ctx); static irqreturn_t fimc_irq_handler(int irq, void *dev_id) { … } static void fimc_clear_addr(struct fimc_context *ctx) { … } static void fimc_reset(struct fimc_context *ctx) { … } static void fimc_start(struct fimc_context *ctx) { … } static void fimc_stop(struct fimc_context *ctx) { … } static int fimc_commit(struct exynos_drm_ipp *ipp, struct exynos_drm_ipp_task *task) { … } static void fimc_abort(struct exynos_drm_ipp *ipp, struct exynos_drm_ipp_task *task) { … } static struct exynos_drm_ipp_funcs ipp_funcs = …; static int fimc_bind(struct device *dev, struct device *master, void *data) { … } static void fimc_unbind(struct device *dev, struct device *master, void *data) { … } static const struct component_ops fimc_component_ops = …; static void fimc_put_clocks(struct fimc_context *ctx) { … } static int fimc_setup_clocks(struct fimc_context *ctx) { … } int exynos_drm_check_fimc_device(struct device *dev) { … } static const unsigned int fimc_formats[] = …; static const unsigned int fimc_tiled_formats[] = …; static const struct drm_exynos_ipp_limit fimc_4210_limits_v1[] = …; static const struct drm_exynos_ipp_limit fimc_4210_limits_v2[] = …; static const struct drm_exynos_ipp_limit fimc_4210_limits_tiled_v1[] = …; static const struct drm_exynos_ipp_limit fimc_4210_limits_tiled_v2[] = …; static int fimc_probe(struct platform_device *pdev) { … } static void fimc_remove(struct platform_device *pdev) { … } static int fimc_runtime_suspend(struct device *dev) { … } static int fimc_runtime_resume(struct device *dev) { … } static DEFINE_RUNTIME_DEV_PM_OPS(fimc_pm_ops, fimc_runtime_suspend, fimc_runtime_resume, NULL); static const struct of_device_id fimc_of_match[] = …; MODULE_DEVICE_TABLE(of, fimc_of_match); struct platform_driver fimc_driver = …;
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