Staging: comedi: add das08 drivers

Supports [Keithley Metrabyte] DAS08 (isa-das08), [ComputerBoards] DAS08
(isa-das08), DAS08-PGM (das08-pgm), DAS08-PGH (das08-pgh), DAS08-PGL
(das08-pgl), DAS08-AOH (das08-aoh), DAS08-AOL (das08-aol), DAS08-AOM
(das08-aom), DAS08/JR-AO (das08/jr-ao), DAS08/JR-16-AO (das08jr-16-ao),
PCI-DAS08 (das08), PC104-DAS08 (pc104-das08), DAS08/JR/16 (das08jr/16)
[ComputerBoards] PCM-DAS08 (pcm-das08)

From: David Schleef <ds@schleef.org>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/drivers/das08.h

+/*
+    das08.h
+
+    Header for das08.c and das08_cs.c
+
+    Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    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 _DAS08_H
+#define _DAS08_H
+
+enum das08_bustype { isa, pci, pcmcia, pc104 };
+// different ways ai data is encoded in first two registers
+enum das08_ai_encoding { das08_encode12, das08_encode16, das08_pcm_encode12 };
+enum das08_lrange { das08_pg_none, das08_bipolar5, das08_pgh, das08_pgl,
+		das08_pgm };
+
+typedef struct das08_board_struct {
+	const char *name;
+	unsigned int id;	// id for pci/pcmcia boards
+	enum das08_bustype bustype;
+	void *ai;
+	unsigned int ai_nbits;
+	enum das08_lrange ai_pg;
+	enum das08_ai_encoding ai_encoding;
+	void *ao;
+	unsigned int ao_nbits;
+	void *di;
+	void *do_;
+	unsigned int do_nchan;
+	unsigned int i8255_offset;
+	unsigned int i8254_offset;
+	unsigned int iosize;	// number of ioports used
+} das08_board;
+
+struct i8254_struct {
+	int channels;		// available channels. Some could be used internally.
+	int logic2phys[3];	// to know which physical channel is.
+	int mode[3];		// the index is the real counter.
+	unsigned int iobase;
+};
+
+#define I8254_CNT0 0
+#define I8254_CNT1 1
+#define I8254_CNT2 2
+#define I8254_CTRL 3
+
+struct das08_private_struct {
+	unsigned int do_mux_bits;	// bits for do/mux register on boards without seperate do register
+	unsigned int do_bits;	// bits for do register on boards with register dedicated to digital out only
+	const unsigned int *pg_gainlist;
+	struct pci_dev *pdev;	// struct for pci-das08
+	unsigned int pci_iobase;	// additional base address for pci-das08
+	struct i8254_struct i8254;
+};
+
+#define NUM_DAS08_CS_BOARDS 2
+extern struct das08_board_struct das08_cs_boards[NUM_DAS08_CS_BOARDS];
+
+int das08_common_attach(comedi_device * dev, unsigned long iobase);
+int das08_common_detach(comedi_device * dev);
+
+#endif /* _DAS08_H */