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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /* * 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 |