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staging: comedi: ni_labpc_isadma: new module for ISA DMA support

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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@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ian Abbott 2013-06-28 17:09:19 +01:00 committed by Greg Kroah-Hartman
parent f12a34ca0b
commit 9a6386623f
5 changed files with 59 additions and 0 deletions
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4
drivers/staging/comedi/Kconfig
View file

@ -492,6 +492,7 @@ 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
@ -1272,6 +1273,9 @@ config COMEDI_NI_LABPC
select COMEDI_8255
select COMEDI_FC
config COMEDI_NI_LABPC_ISADMA
tristate
config COMEDI_NI_TIO
tristate

1
drivers/staging/comedi/drivers/Makefile
View file

@ -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

1
drivers/staging/comedi/drivers/ni_labpc.c
View file

@ -71,6 +71,7 @@
#include "8255.h"
#include "comedi_fc.h"
#include "ni_labpc.h"
#include "ni_labpc_isadma.h"
/*
* Register map (all registers are 8-bit)

37
drivers/staging/comedi/drivers/ni_labpc_isadma.c Normal file
View file

@ -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@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.
*/
#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");

16
drivers/staging/comedi/drivers/ni_labpc_isadma.h Normal file
View file

@ -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 */