Blackfin: bfin_ppi.h: start a common PPI/EPPI header

/*

 * bfin_ppi.h - interface to Blackfin PPIs

 *

 * Copyright 2005-2010 Analog Devices Inc.

 *

 * Licensed under the GPL-2 or later.

 */

#ifndef __ASM_BFIN_PPI_H__

#define __ASM_BFIN_PPI_H__

#include <linux/types.h>

/*

 * All Blackfin system MMRs are padded to 32bits even if the register

 * itself is only 16bits.  So use a helper macro to streamline this.

 */

#define __BFP(m) u16 m; u16 __pad_##m

/*

 * bfin ppi registers layout

 */

struct bfin_ppi_regs {

	__BFP(control);

	__BFP(status);

	__BFP(count);

	__BFP(delay);

	__BFP(frame);

};

/*

 * bfin eppi registers layout

 */

struct bfin_eppi_regs {

	__BFP(status);

	__BFP(hcount);

	__BFP(hdelay);

	__BFP(vcount);

	__BFP(vdelay);

	__BFP(frame);

	__BFP(line);

	__BFP(clkdiv);

	u32 control;

	u32 fs1w_hbl;

	u32 fs1p_avpl;

	u32 fs2w_lvb;

	u32 fs2p_lavf;

	u32 clip;

};

#endif