mirror of https://gitee.com/openkylin/linux.git
110 lines
3.6 KiB
C
110 lines
3.6 KiB
C
/*
|
|
* 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
|