forked from Minki/linux
febeaa45a6
Simplify the driver by using the m2m ioctl and vb2 helpers. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
97 lines
2.3 KiB
C
97 lines
2.3 KiB
C
/*
|
|
* Samsung S5P G2D - 2D Graphics Accelerator Driver
|
|
*
|
|
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
|
|
* Kamil Debski, <k.debski@samsung.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the
|
|
* License, or (at your option) any later version
|
|
*/
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <media/v4l2-device.h>
|
|
#include <media/v4l2-ctrls.h>
|
|
|
|
#define G2D_NAME "s5p-g2d"
|
|
#define TYPE_G2D_3X 3
|
|
#define TYPE_G2D_4X 4
|
|
|
|
struct g2d_dev {
|
|
struct v4l2_device v4l2_dev;
|
|
struct v4l2_m2m_dev *m2m_dev;
|
|
struct video_device *vfd;
|
|
struct mutex mutex;
|
|
spinlock_t ctrl_lock;
|
|
atomic_t num_inst;
|
|
struct vb2_alloc_ctx *alloc_ctx;
|
|
void __iomem *regs;
|
|
struct clk *clk;
|
|
struct clk *gate;
|
|
struct g2d_ctx *curr;
|
|
struct g2d_variant *variant;
|
|
int irq;
|
|
wait_queue_head_t irq_queue;
|
|
};
|
|
|
|
struct g2d_frame {
|
|
/* Original dimensions */
|
|
u32 width;
|
|
u32 height;
|
|
/* Crop size */
|
|
u32 c_width;
|
|
u32 c_height;
|
|
/* Offset */
|
|
u32 o_width;
|
|
u32 o_height;
|
|
/* Image format */
|
|
struct g2d_fmt *fmt;
|
|
/* Variables that can calculated once and reused */
|
|
u32 stride;
|
|
u32 bottom;
|
|
u32 right;
|
|
u32 size;
|
|
};
|
|
|
|
struct g2d_ctx {
|
|
struct v4l2_fh fh;
|
|
struct g2d_dev *dev;
|
|
struct g2d_frame in;
|
|
struct g2d_frame out;
|
|
struct v4l2_ctrl *ctrl_hflip;
|
|
struct v4l2_ctrl *ctrl_vflip;
|
|
struct v4l2_ctrl_handler ctrl_handler;
|
|
u32 rop;
|
|
u32 flip;
|
|
};
|
|
|
|
struct g2d_fmt {
|
|
char *name;
|
|
u32 fourcc;
|
|
int depth;
|
|
u32 hw;
|
|
};
|
|
|
|
struct g2d_variant {
|
|
unsigned short hw_rev;
|
|
};
|
|
|
|
void g2d_reset(struct g2d_dev *d);
|
|
void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f);
|
|
void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a);
|
|
void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f);
|
|
void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a);
|
|
void g2d_start(struct g2d_dev *d);
|
|
void g2d_clear_int(struct g2d_dev *d);
|
|
void g2d_set_rop4(struct g2d_dev *d, u32 r);
|
|
void g2d_set_flip(struct g2d_dev *d, u32 r);
|
|
void g2d_set_v41_stretch(struct g2d_dev *d,
|
|
struct g2d_frame *src, struct g2d_frame *dst);
|
|
void g2d_set_cmd(struct g2d_dev *d, u32 c);
|
|
|
|
static inline struct g2d_variant *g2d_get_drv_data(struct platform_device *pdev)
|
|
{
|
|
return (struct g2d_variant *)platform_get_device_id(pdev)->driver_data;
|
|
}
|