[mirror_ubuntu-bionic-kernel.git] / drivers / isdn / hardware / mISDN / iohelper.h

/*
 * iohelper.h
 *		helper for define functions to access ISDN hardware
 *              supported are memory mapped IO
 *		indirect port IO (one port for address, one for data)
 *
 * Author       Karsten Keil <keil@isdn4linux.de>
 *
 * Copyright 2009  by Karsten Keil <keil@isdn4linux.de>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#ifndef _IOHELPER_H
#define _IOHELPER_H

typedef	u8	(read_reg_func)(void *hwp, u8 offset);
			       typedef	void	(write_reg_func)(void *hwp, u8 offset, u8 value);
			       typedef	void	(fifo_func)(void *hwp, u8 offset, u8 *datap, int size);

			       struct _ioport {
				       u32	port;
				       u32	ale;
			       };

#define IOFUNC_IO(name, hws, ap)					\
	static u8 Read##name##_IO(void *p, u8 off) {			\
		struct hws *hw = p;					\
		return inb(hw->ap.port + off);				\
	}								\
	static void Write##name##_IO(void *p, u8 off, u8 val) {		\
		struct hws *hw = p;					\
		outb(val, hw->ap.port + off);				\
	}								\
	static void ReadFiFo##name##_IO(void *p, u8 off, u8 *dp, int size) { \
		struct hws *hw = p;					\
		insb(hw->ap.port + off, dp, size);			\
	}								\
	static void WriteFiFo##name##_IO(void *p, u8 off, u8 *dp, int size) { \
		struct hws *hw = p;					\
		outsb(hw->ap.port + off, dp, size);			\
	}

#define IOFUNC_IND(name, hws, ap)					\
	static u8 Read##name##_IND(void *p, u8 off) {			\
		struct hws *hw = p;					\
		outb(off, hw->ap.ale);					\
		return inb(hw->ap.port);				\
	}								\
	static void Write##name##_IND(void *p, u8 off, u8 val) {	\
		struct hws *hw = p;					\
		outb(off, hw->ap.ale);					\
		outb(val, hw->ap.port);					\
	}								\
	static void ReadFiFo##name##_IND(void *p, u8 off, u8 *dp, int size) { \
		struct hws *hw = p;					\
		outb(off, hw->ap.ale);					\
		insb(hw->ap.port, dp, size);				\
	}								\
	static void WriteFiFo##name##_IND(void *p, u8 off, u8 *dp, int size) { \
		struct hws *hw = p;					\
		outb(off, hw->ap.ale);					\
		outsb(hw->ap.port, dp, size);				\
	}

#define IOFUNC_MEMIO(name, hws, typ, adr)				\
	static u8 Read##name##_MIO(void *p, u8 off) {			\
		struct hws *hw = p;					\
		return readb(((typ *)hw->adr) + off);			\
	}								\
	static void Write##name##_MIO(void *p, u8 off, u8 val) {	\
		struct hws *hw = p;					\
		writeb(val, ((typ *)hw->adr) + off);			\
	}								\
	static void ReadFiFo##name##_MIO(void *p, u8 off, u8 *dp, int size) { \
		struct hws *hw = p;					\
		while (size--)						\
			*dp++ = readb(((typ *)hw->adr) + off);		\
	}								\
	static void WriteFiFo##name##_MIO(void *p, u8 off, u8 *dp, int size) { \
		struct hws *hw = p;					\
		while (size--)						\
			writeb(*dp++, ((typ *)hw->adr) + off);		\
	}

#define ASSIGN_FUNC(typ, name, dest)	do {			\
		dest.read_reg = &Read##name##_##typ;		\
		dest.write_reg = &Write##name##_##typ;		\
		dest.read_fifo = &ReadFiFo##name##_##typ;	\
		dest.write_fifo = &WriteFiFo##name##_##typ;	\
	} while (0)
#define ASSIGN_FUNC_IPAC(typ, target)	do {		\
		ASSIGN_FUNC(typ, ISAC, target.isac);	\
		ASSIGN_FUNC(typ, IPAC, target);		\
	} while (0)

#endif
Commit	Line	Data
cae86d4a KK	1	/*
	2	* iohelper.h
	3	* helper for define functions to access ISDN hardware
	4	* supported are memory mapped IO
	5	* indirect port IO (one port for address, one for data)
	6	*
	7	* Author Karsten Keil <keil@isdn4linux.de>
	8	*
	9	* Copyright 2009 by Karsten Keil <keil@isdn4linux.de>
	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License version 2 as
	13	* published by the Free Software Foundation.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	23	*
	24	*/
	25
	26	#ifndef _IOHELPER_H
	27	#define _IOHELPER_H
	28
663a31ce	29	typedef u8 (read_reg_func)(void *hwp, u8 offset);
475be4d8 JP	30	typedef void (write_reg_func)(void *hwp, u8 offset, u8 value);
475be4d8 JP	31	typedef void (fifo_func)(void hwp, u8 offset, u8 datap, int size);
cae86d4a	32
475be4d8 JP	33	struct _ioport {
	34	u32 port;
	35	u32 ale;
	36	};
cae86d4a	37
475be4d8 JP	38	#define IOFUNC_IO(name, hws, ap) \
	39	static u8 Read##name##_IO(void *p, u8 off) { \
	40	struct hws *hw = p; \
	41	return inb(hw->ap.port + off); \
	42	} \
	43	static void Write##name##_IO(void *p, u8 off, u8 val) { \
	44	struct hws *hw = p; \
	45	outb(val, hw->ap.port + off); \
	46	} \
	47	static void ReadFiFo##name##_IO(void p, u8 off, u8 dp, int size) { \
	48	struct hws *hw = p; \
	49	insb(hw->ap.port + off, dp, size); \
	50	} \
	51	static void WriteFiFo##name##_IO(void p, u8 off, u8 dp, int size) { \
	52	struct hws *hw = p; \
	53	outsb(hw->ap.port + off, dp, size); \
cae86d4a KK	54	}
cae86d4a KK	55
475be4d8 JP	56	#define IOFUNC_IND(name, hws, ap) \
	57	static u8 Read##name##_IND(void *p, u8 off) { \
	58	struct hws *hw = p; \
	59	outb(off, hw->ap.ale); \
	60	return inb(hw->ap.port); \
	61	} \
	62	static void Write##name##_IND(void *p, u8 off, u8 val) { \
	63	struct hws *hw = p; \
	64	outb(off, hw->ap.ale); \
	65	outb(val, hw->ap.port); \
	66	} \
	67	static void ReadFiFo##name##_IND(void p, u8 off, u8 dp, int size) { \
	68	struct hws *hw = p; \
	69	outb(off, hw->ap.ale); \
	70	insb(hw->ap.port, dp, size); \
	71	} \
	72	static void WriteFiFo##name##_IND(void p, u8 off, u8 dp, int size) { \
	73	struct hws *hw = p; \
	74	outb(off, hw->ap.ale); \
	75	outsb(hw->ap.port, dp, size); \
cae86d4a KK	76	}
cae86d4a KK	77
475be4d8 JP	78	#define IOFUNC_MEMIO(name, hws, typ, adr) \
	79	static u8 Read##name##_MIO(void *p, u8 off) { \
	80	struct hws *hw = p; \
	81	return readb(((typ *)hw->adr) + off); \
	82	} \
	83	static void Write##name##_MIO(void *p, u8 off, u8 val) { \
	84	struct hws *hw = p; \
	85	writeb(val, ((typ *)hw->adr) + off); \
	86	} \
	87	static void ReadFiFo##name##_MIO(void p, u8 off, u8 dp, int size) { \
	88	struct hws *hw = p; \
	89	while (size--) \
	90	dp++ = readb(((typ )hw->adr) + off); \
	91	} \
	92	static void WriteFiFo##name##_MIO(void p, u8 off, u8 dp, int size) { \
	93	struct hws *hw = p; \
	94	while (size--) \
	95	writeb(dp++, ((typ )hw->adr) + off); \
cae86d4a KK	96	}
cae86d4a KK	97
475be4d8 JP	98	#define ASSIGN_FUNC(typ, name, dest) do { \
	99	dest.read_reg = &Read##name##_##typ; \
	100	dest.write_reg = &Write##name##_##typ; \
	101	dest.read_fifo = &ReadFiFo##name##_##typ; \
	102	dest.write_fifo = &WriteFiFo##name##_##typ; \
cae86d4a	103	} while (0)
475be4d8 JP	104	#define ASSIGN_FUNC_IPAC(typ, target) do { \
	105	ASSIGN_FUNC(typ, ISAC, target.isac); \
	106	ASSIGN_FUNC(typ, IPAC, target); \
cae86d4a KK	107	} while (0)
cae86d4a KK	108
663a31ce	109	#endif