Staging: comedi: add kcomedilib to the tree

This adds the kcomedilib module

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/Makefile

@@ -1,6 +1,8 @@
 obj-$(CONFIG_COMEDI) += comedi.o
 obj-$(CONFIG_COMEDI_RT) += comedi_rt.o
 
+obj-$(CONFIG_COMEDI)	+= kcomedilib/
+
 comedi-objs :=		\
 	comedi_fops.o	\
 	proc.o		\

drivers/staging/comedi/kcomedilib/Makefile

@@ -0,0 +1,8 @@
+obj-$(CONFIG_COMEDI)	+= kcomedilib.o
+
+kcomedilib-objs :=				\
+			data.o			\
+			ksyms.o			\
+			dio.o			\
+			kcomedilib_main.o	\
+			get.o

drivers/staging/comedi/kcomedilib/data.c

@@ -0,0 +1,89 @@
+/*
+    kcomedilib/data.c
+    implements comedi_data_*() functions
+
+    COMEDI - Linux Control and Measurement Device Interface
+    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+
+    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.
+
+*/
+
+#include "../comedi.h"
+#include "../comedilib.h"
+#include "../comedidev.h"	/* for comedi_udelay() */
+
+#include <linux/string.h>
+
+int comedi_data_write(comedi_t * dev, unsigned int subdev, unsigned int chan,
+	unsigned int range, unsigned int aref, lsampl_t data)
+{
+	comedi_insn insn;
+
+	memset(&insn, 0, sizeof(insn));
+	insn.insn = INSN_WRITE;
+	insn.n = 1;
+	insn.data = &data;
+	insn.subdev = subdev;
+	insn.chanspec = CR_PACK(chan, range, aref);
+
+	return comedi_do_insn(dev, &insn);
+}
+
+int comedi_data_read(comedi_t * dev, unsigned int subdev, unsigned int chan,
+	unsigned int range, unsigned int aref, lsampl_t * data)
+{
+	comedi_insn insn;
+
+	memset(&insn, 0, sizeof(insn));
+	insn.insn = INSN_READ;
+	insn.n = 1;
+	insn.data = data;
+	insn.subdev = subdev;
+	insn.chanspec = CR_PACK(chan, range, aref);
+
+	return comedi_do_insn(dev, &insn);
+}
+
+int comedi_data_read_hint(comedi_t * dev, unsigned int subdev,
+	unsigned int chan, unsigned int range, unsigned int aref)
+{
+	comedi_insn insn;
+	lsampl_t dummy_data;
+
+	memset(&insn, 0, sizeof(insn));
+	insn.insn = INSN_READ;
+	insn.n = 0;
+	insn.data = &dummy_data;
+	insn.subdev = subdev;
+	insn.chanspec = CR_PACK(chan, range, aref);
+
+	return comedi_do_insn(dev, &insn);
+}
+
+int comedi_data_read_delayed(comedi_t * dev, unsigned int subdev,
+	unsigned int chan, unsigned int range, unsigned int aref,
+	lsampl_t * data, unsigned int nano_sec)
+{
+	int retval;
+
+	retval = comedi_data_read_hint(dev, subdev, chan, range, aref);
+	if (retval < 0)
+		return retval;
+
+	comedi_udelay((nano_sec + 999) / 1000);
+
+	return comedi_data_read(dev, subdev, chan, range, aref, data);
+}

drivers/staging/comedi/kcomedilib/dio.c

@@ -0,0 +1,95 @@
+/*
+    kcomedilib/dio.c
+    implements comedi_dio_*() functions
+
+    COMEDI - Linux Control and Measurement Device Interface
+    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+
+    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.
+
+*/
+
+#include "../comedi.h"
+#include "../comedilib.h"
+
+#include <linux/string.h>
+
+int comedi_dio_config(comedi_t * dev, unsigned int subdev, unsigned int chan,
+	unsigned int io)
+{
+	comedi_insn insn;
+
+	memset(&insn, 0, sizeof(insn));
+	insn.insn = INSN_CONFIG;
+	insn.n = 1;
+	insn.data = &io;
+	insn.subdev = subdev;
+	insn.chanspec = CR_PACK(chan, 0, 0);
+
+	return comedi_do_insn(dev, &insn);
+}
+
+int comedi_dio_read(comedi_t * dev, unsigned int subdev, unsigned int chan,
+	unsigned int *val)
+{
+	comedi_insn insn;
+
+	memset(&insn, 0, sizeof(insn));
+	insn.insn = INSN_READ;
+	insn.n = 1;
+	insn.data = val;
+	insn.subdev = subdev;
+	insn.chanspec = CR_PACK(chan, 0, 0);
+
+	return comedi_do_insn(dev, &insn);
+}
+
+int comedi_dio_write(comedi_t * dev, unsigned int subdev, unsigned int chan,
+	unsigned int val)
+{
+	comedi_insn insn;
+
+	memset(&insn, 0, sizeof(insn));
+	insn.insn = INSN_WRITE;
+	insn.n = 1;
+	insn.data = &val;
+	insn.subdev = subdev;
+	insn.chanspec = CR_PACK(chan, 0, 0);
+
+	return comedi_do_insn(dev, &insn);
+}
+
+int comedi_dio_bitfield(comedi_t * dev, unsigned int subdev, unsigned int mask,
+	unsigned int *bits)
+{
+	comedi_insn insn;
+	lsampl_t data[2];
+	int ret;
+
+	memset(&insn, 0, sizeof(insn));
+	insn.insn = INSN_BITS;
+	insn.n = 2;
+	insn.data = data;
+	insn.subdev = subdev;
+
+	data[0] = mask;
+	data[1] = *bits;
+
+	ret = comedi_do_insn(dev, &insn);
+
+	*bits = data[1];
+
+	return ret;
+}