1 files changed, 109 insertions, 0 deletions

diff --git a/drivers/isdn/hardware/mISDN/iohelper.h b/drivers/isdn/hardware/mISDN/iohelper.h
new file mode 100644
index 000000000000..b438981107ae
--- /dev/null
+++ b/drivers/isdn/hardware/mISDN/iohelper.h
@@ -0,0 +1,109 @@
+/*
+ * 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