linux/drivers/video/ti81xx/vpss/core.h

/*
 * linux/drivers/video/ti81xx/vpss/core.h
 *
 * VPSS Core  driver for TI 81XX
 *
 * Copyright (C) 2009 TI
 * Author: Yihe Hu <yihehu@ti.com>
 *
 * Some code and ideas taken from drivers/video/omap2/ driver
 * by Tomi Valkeinen.
 *
 * 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.,
 * 59 Temple Place - Suite 330, Boston, MA	02111-1307, USA.
 */

#ifndef __DRIVERS_VIDEO_TI81XX_VPSS_CORE_H__
#define __DRIVERS_VIDEO_TI81XX_VPSS_CORE_H__


#ifdef CONFIG_TI81XX_VPSS_DEBUG_SUPPORT
#define DEBUG
extern unsigned int vpss_debug;
#endif

#include <linux/platform_device.h>
#include <plat/ti81xx-vpss.h>

#ifdef DEBUG
#define VPSSDBG(format, ...) \
	do { \
		if (vpss_debug) \
			printk(KERN_DEBUG "VPSS_" VPSS_SUBMODULE_NAME ": " \
				format, ## __VA_ARGS__); \
	} while (0)

#define VPSSERR(format, ...) \
	do { \
		if (vpss_debug)  \
			printk(KERN_ERR "VPSS_" VPSS_SUBMODULE_NAME ": " \
				format, ## __VA_ARGS__); \
	} while (0)

#else
#define VPSSDBG(format, ...)
#define VPSSERR(format, ...)
#endif

/*defined the memory informaton shared between A8 and M3 for each submodule*/
struct vps_payload_info {
	u32           paddr;
	void          *vaddr;
	u32	      size;
};

struct vps_sname_info {
	const char *name;
	u32 value;
};

struct vps_isr_data {
	vsync_callback_t	isr;
	void			*arg;
	struct list_head        list;
};



/*grpx*/
int __init vps_grpx_init(struct platform_device *pdev);
void __exit vps_grpx_deinit(struct platform_device *pdev);

/*display control*/
int __init vps_dc_init(struct platform_device *pdev,
		       const char *mode,
		       int tied_vencs,
		       const char *clksrc);

int __exit vps_dc_deinit(struct platform_device *pdev);

/*video */
int __init vps_video_init(struct platform_device *pdev);
void __exit vps_video_deinit(struct platform_device *pdev);

/*fvid2*/
int vps_fvid2_init(struct platform_device *pdev, u32 timeout);
void vps_fvid2_deinit(struct platform_device *pdev);


/*shared buffer functions*/
int __init vps_sbuf_init(const char *sbaddr, const char *sbsize);
int __exit vps_sbuf_deinit(void);
void *vps_sbuf_alloc(size_t size, u32 *paddr);
int vps_sbuf_free(u32 paddr, void *vaddr, size_t size);


int __init vps_system_init(struct platform_device *pdev);
int __exit vps_system_deinit(struct platform_device *pdev);


static inline void *setaddr(struct vps_payload_info *dminfo,
		     u32 *buf_offset,
		     u32 *phy,
		     u32 size)
{
	void *ptr;
	*phy = dminfo->paddr + *buf_offset;
	ptr = (void *)((u32)dminfo->vaddr + *buf_offset);
	*buf_offset += size;

	return ptr;
}

static inline enum fvid2_bitsperpixel vps_get_fbpp(u8 bpp)
{
	enum fvid2_bitsperpixel fbpp = FVID2_BPP_BITS16;

	switch (bpp) {
	case 1:
		fbpp = FVID2_BPP_BITS1;
		break;
	case 2:
		fbpp = FVID2_BPP_BITS2;
		break;
	case 4:
		fbpp = FVID2_BPP_BITS4;
		break;
	case 8:
		fbpp = FVID2_BPP_BITS8;
		break;
	case 16:
		fbpp = FVID2_BPP_BITS16;
		break;
	case 24:
		fbpp = FVID2_BPP_BITS24;
		break;
	case 32:
		fbpp = FVID2_BPP_BITS32;
	}
	return fbpp;
}

static inline int vps_get_bitspp(enum fvid2_bitsperpixel fbpp)
{
	int bpp;

	switch (fbpp) {
	case FVID2_BPP_BITS1:
		bpp = 1;
		break;
	case FVID2_BPP_BITS2:
		bpp = 2;
		break;
	case FVID2_BPP_BITS4:
		bpp = 4;
		break;
	case FVID2_BPP_BITS8:
		bpp = 8;
		break;
	case FVID2_BPP_BITS16:
		bpp = 16;
		break;
	case FVID2_BPP_BITS24:
		bpp = 24;
		break;
	case FVID2_BPP_BITS32:
		bpp = 32;
	default:
		bpp = 32;
	}

	return bpp;

}

static inline u8 vps_get_numvencs(void)
{
	if (cpu_is_ti816x())
		return VPS_DC_MAX_VENC;
	else
		return VPS_DC_MAX_VENC - 1;
}

#endif