124 lines
2.5 KiB
C
124 lines
2.5 KiB
C
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/*
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* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
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* Author: Jacob Chen <jacob-chen@iotwrt.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __RGA_H__
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#define __RGA_H__
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#include <linux/platform_device.h>
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#include <media/videobuf2-v4l2.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-device.h>
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#define RGA_NAME "rockchip-rga"
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struct rga_fmt {
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u32 fourcc;
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int depth;
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u8 uv_factor;
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u8 y_div;
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u8 x_div;
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u8 color_swap;
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u8 hw_format;
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};
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struct rga_frame {
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/* Original dimensions */
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u32 width;
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u32 height;
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u32 colorspace;
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/* Crop */
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struct v4l2_rect crop;
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/* Image format */
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struct rga_fmt *fmt;
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/* Variables that can calculated once and reused */
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u32 stride;
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u32 size;
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};
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struct rockchip_rga_version {
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u32 major;
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u32 minor;
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};
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struct rga_ctx {
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struct v4l2_fh fh;
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struct rockchip_rga *rga;
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struct rga_frame in;
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struct rga_frame out;
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struct v4l2_ctrl_handler ctrl_handler;
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/* Control values */
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u32 op;
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u32 hflip;
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u32 vflip;
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u32 rotate;
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u32 fill_color;
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};
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struct rockchip_rga {
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struct v4l2_device v4l2_dev;
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struct v4l2_m2m_dev *m2m_dev;
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struct video_device *vfd;
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struct device *dev;
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struct regmap *grf;
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void __iomem *regs;
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struct clk *sclk;
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struct clk *aclk;
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struct clk *hclk;
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struct rockchip_rga_version version;
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/* vfd lock */
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struct mutex mutex;
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/* ctrl parm lock */
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spinlock_t ctrl_lock;
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struct rga_ctx *curr;
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dma_addr_t cmdbuf_phy;
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void *cmdbuf_virt;
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unsigned int *src_mmu_pages;
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unsigned int *dst_mmu_pages;
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};
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struct rga_frame *rga_get_frame(struct rga_ctx *ctx, enum v4l2_buf_type type);
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/* RGA Buffers Manage */
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extern const struct vb2_ops rga_qops;
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void rga_buf_map(struct vb2_buffer *vb);
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/* RGA Hardware */
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static inline void rga_write(struct rockchip_rga *rga, u32 reg, u32 value)
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{
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writel(value, rga->regs + reg);
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};
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static inline u32 rga_read(struct rockchip_rga *rga, u32 reg)
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{
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return readl(rga->regs + reg);
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};
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static inline void rga_mod(struct rockchip_rga *rga, u32 reg, u32 val, u32 mask)
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{
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u32 temp = rga_read(rga, reg) & ~(mask);
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temp |= val & mask;
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rga_write(rga, reg, temp);
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};
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void rga_hw_start(struct rockchip_rga *rga);
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#endif
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