It's just an empty module at the moment, selected by COMEDI_NI_LABPC_ISA
&& ISA_DMA_API && VIRT_TO_BUS, but will be populated by later patches to
migrate ISA DMA support for NI Lab-PC cards out of the "ni_labpc"
module.
Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx>
---
drivers/staging/comedi/Kconfig | 4 +++
drivers/staging/comedi/drivers/Makefile | 1 +
drivers/staging/comedi/drivers/ni_labpc.c | 1 +
drivers/staging/comedi/drivers/ni_labpc_isadma.c | 37 ++++++++++++++++++++++++
drivers/staging/comedi/drivers/ni_labpc_isadma.h | 16 ++++++++++
5 files changed, 59 insertions(+)
create mode 100644 drivers/staging/comedi/drivers/ni_labpc_isadma.c
create mode 100644 drivers/staging/comedi/drivers/ni_labpc_isadma.h
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index 8c8a551..faecf67 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -473,6 +473,7 @@ config COMEDI_NI_ATMIO16D
config COMEDI_NI_LABPC_ISA
tristate "NI Lab-PC and compatibles ISA support"
select COMEDI_NI_LABPC
+ select COMEDI_NI_LABPC_ISADMA if ISA_DMA_API && VIRT_TO_BUS
depends on VIRT_TO_BUS
---help---
Enable support for National Instruments Lab-PC and compatibles
@@ -1262,6 +1263,9 @@ config COMEDI_NI_LABPC
select COMEDI_8255
select COMEDI_FC
+config COMEDI_NI_LABPC_ISADMA
+ tristate
+
config COMEDI_NI_TIO
tristate
diff --git a/drivers/staging/comedi/drivers/Makefile b/drivers/staging/comedi/drivers/Makefile
index dbb93e3..3fdca81 100644
--- a/drivers/staging/comedi/drivers/Makefile
+++ b/drivers/staging/comedi/drivers/Makefile
@@ -132,6 +132,7 @@ obj-$(CONFIG_COMEDI_MITE) += mite.o
obj-$(CONFIG_COMEDI_NI_TIO) += ni_tio.o
obj-$(CONFIG_COMEDI_NI_TIOCMD) += ni_tiocmd.o
obj-$(CONFIG_COMEDI_NI_LABPC) += ni_labpc.o
+obj-$(CONFIG_COMEDI_NI_LABPC_ISADMA) += ni_labpc_isadma.o
obj-$(CONFIG_COMEDI_8255) += 8255.o
obj-$(CONFIG_COMEDI_AMPLC_DIO200) += amplc_dio200_common.o
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 7dec029..41f1674 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -70,6 +70,7 @@
#include "8255.h"
#include "comedi_fc.h"
#include "ni_labpc.h"
+#include "ni_labpc_isadma.h"
/*
* Register map (all registers are 8-bit)
diff --git a/drivers/staging/comedi/drivers/ni_labpc_isadma.c b/drivers/staging/comedi/drivers/ni_labpc_isadma.c
new file mode 100644
index 0000000..586ea54
--- /dev/null
+++ b/drivers/staging/comedi/drivers/ni_labpc_isadma.c
@@ -0,0 +1,37 @@
+/*
+ * comedi/drivers/ni_labpc_isadma.c
+ * ISA DMA support for National Instruments Lab-PC series boards and
+ * compatibles.
+ *
+ * Extracted from ni_labpc.c:
+ * Copyright (C) 2001-2003 Frank Mori Hess <fmhess@xxxxxxxxxxxxxxxxxxxxx>
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+
+#include "ni_labpc_isadma.h"
+
+static int __init ni_labpc_isadma_init_module(void)
+{
+ return 0;
+}
+module_init(ni_labpc_isadma_init_module);
+
+static void __exit ni_labpc_isadma_cleanup_module(void)
+{
+}
+module_exit(ni_labpc_isadma_cleanup_module);
+
+MODULE_AUTHOR("Comedi http://www.comedi.org";);
+MODULE_DESCRIPTION("Comedi NI Lab-PC ISA DMA support");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_labpc_isadma.h b/drivers/staging/comedi/drivers/ni_labpc_isadma.h
new file mode 100644
index 0000000..ac644f0
--- /dev/null
+++ b/drivers/staging/comedi/drivers/ni_labpc_isadma.h
@@ -0,0 +1,16 @@
+/*
+ * ni_labpc ISA DMA support.
+*/
+
+#ifndef _NI_LABPC_ISADMA_H
+#define _NI_LABPC_ISADMA_H
+
+#define NI_LABPC_HAVE_ISA_DMA IS_ENABLED(CONFIG_COMEDI_NI_LABPC_ISADMA)
+
+#if NI_LABPC_HAVE_ISA_DMA
+
+#else
+
+#endif
+
+#endif /* _NI_LABPC_ISADMA_H */
--
1.8.2.1
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