/*
 * Freescale MXS PxP driver
 *
 * Author: Matt Porter <mporter@embeddedalley.com>
 *
 * Copyright 2008-2010 Freescale Semiconductor, Inc.
 * Copyright 2008-2009 Embedded Alley Solutions, Inc All Rights Reserved.
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifdef	CONFIG_ARCH_MX23
#define BF_PXP_CTRL_OUTBUF_FORMAT(v)	BF_PXP_CTRL_OUTPUT_RGB_FORMAT(v)

#define BV_PXP_CTRL_OUTBUF_FORMAT__ARGB8888	\
	BV_PXP_CTRL_OUTPUT_RGB_FORMAT__ARGB8888
#define BV_PXP_CTRL_OUTBUF_FORMAT__RGB888	\
	BV_PXP_CTRL_OUTPUT_RGB_FORMAT__RGB888
#define BV_PXP_CTRL_OUTBUF_FORMAT__RGB888P   	\
	BV_PXP_CTRL_OUTPUT_RGB_FORMAT__RGB888P
#define BV_PXP_CTRL_OUTBUF_FORMAT__ARGB1555	\
	BV_PXP_CTRL_OUTPUT_RGB_FORMAT__ARGB1555
#define BV_PXP_CTRL_OUTBUF_FORMAT__RGB565	\
	BV_PXP_CTRL_OUTPUT_RGB_FORMAT__RGB565
#define BV_PXP_CTRL_OUTBUF_FORMAT__RGB555	\
	BV_PXP_CTRL_OUTPUT_RGB_FORMAT__RGB555

#define BF_PXP_OUTSIZE_WIDTH(v)		BF_PXP_RGBSIZE_WIDTH(v)
#define BF_PXP_OUTSIZE_HEIGHT(v)	BF_PXP_RGBSIZE_HEIGHT(v)

/* The maximum down scaling factor is 1/2 */
#define	PXP_DOWNSCALE_THRESHOLD		0x2000
#else
/* The maximum down scaling factor is 1/4 */
#define	PXP_DOWNSCALE_THRESHOLD		0x4000
#endif

struct pxp_overlay_registers {
	u32 ol;
	u32 olsize;
	u32 olparam;
	u32 olparam2;
};

/* Registers feed for PXP_NEXT */
struct pxp_registers {
	u32 ctrl;
	u32 outbuf;
	u32 outbuf2;
	u32 outsize;
	u32 s0buf;
	u32 s0ubuf;
	u32 s0vbuf;
	u32 s0param;
	u32 s0background;
	u32 s0crop;
	u32 s0scale;
	u32 s0offset;
	u32 s0colorkeylow;
	u32 s0colorkeyhigh;
	u32 olcolorkeylow;
	u32 olcolorkeyhigh;

	struct pxp_overlay_registers ol0;
	struct pxp_overlay_registers ol1;
	struct pxp_overlay_registers ol2;
	struct pxp_overlay_registers ol3;
	struct pxp_overlay_registers ol4;
	struct pxp_overlay_registers ol5;
	struct pxp_overlay_registers ol6;
	struct pxp_overlay_registers ol7;
};

struct pxp_buffer {
	/* Must be first! */
	struct videobuf_buffer vb;
	struct list_head queue;
};

struct pxps {
	struct platform_device *pdev;
	struct resource *res;
	int irq;
	void __iomem *regs;

	struct work_struct work;
	struct workqueue_struct *workqueue;
	spinlock_t lock;
	struct mutex mutex;
	int users;

	struct video_device *vdev;

	struct videobuf_queue s0_vbq;
	struct videobuf_buffer *active;
	struct list_head outq;
	struct list_head nextq;

	int output;
	u32 *outb;
	dma_addr_t outb_phys;

	/* Current S0 configuration */
	struct pxp_data_format *s0_fmt;
	u32 s0_width;
	u32 s0_height;
	u32 s0_bgcolor;
	u32 s0_chromakey;

	struct v4l2_framebuffer fb;
	struct v4l2_rect drect;
	struct v4l2_rect srect;

	/* Transformation support */
	int scaling;
	int hflip;
	int vflip;
	int rotate;
	int yuv;

	/* Output overlay support */
	int overlay_state;
	int global_alpha_state;
	u8  global_alpha;
	int local_alpha_state;
	int s1_chromakey_state;
	u32 s1_chromakey;

	/* PXP_NEXT */
	u32 regs_phys;
	struct pxp_registers *regs_virt;
	wait_queue_head_t done;
	int next_queue_ended;
};

struct pxp_data_format {
	char *name;
	unsigned int bpp;
	u32 fourcc;
	enum v4l2_colorspace colorspace;
	u32 ctrl_s0_fmt;
};

extern int mxsfb_get_info(struct fb_var_screeninfo *var,
				struct fb_fix_screeninfo *fix);
extern void mxsfb_cfg_pxp(int enable, dma_addr_t pxp_phys);