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staging: comedi: mite.c: reformat comments 

Use the usual style for block comments.  Squash double spaces after
comment opening sequences.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ian Abbott 2015-05-01 18:04:01 +01:00 committed by Greg Kroah-Hartman
parent f751a0d503
commit 65f6fac914
1 changed files with 54 additions and 51 deletions
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105
drivers/staging/comedi/drivers/mite.c
View File

@ -1,46 +1,46 @@
/*
comedi/drivers/mite.c
Hardware driver for NI Mite PCI interface chip
COMEDI - Linux Control and Measurement Device Interface
Copyright (C) 1997-2002 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.
*/
* comedi/drivers/mite.c
* Hardware driver for NI Mite PCI interface chip
*
* COMEDI - Linux Control and Measurement Device Interface
* Copyright (C) 1997-2002 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.
*/
/*
The PCI-MIO E series driver was originally written by
Tomasz Motylewski <...>, and ported to comedi by ds.
References for specifications:
321747b.pdf Register Level Programmer Manual (obsolete)
321747c.pdf Register Level Programmer Manual (new)
DAQ-STC reference manual
Other possibly relevant info:
320517c.pdf User manual (obsolete)
320517f.pdf User manual (new)
320889a.pdf delete
320906c.pdf maximum signal ratings
321066a.pdf about 16x
321791a.pdf discontinuation of at-mio-16e-10 rev. c
321808a.pdf about at-mio-16e-10 rev P
321837a.pdf discontinuation of at-mio-16de-10 rev d
321838a.pdf about at-mio-16de-10 rev N
ISSUES:
*/
* The PCI-MIO E series driver was originally written by
* Tomasz Motylewski <...>, and ported to comedi by ds.
*
* References for specifications:
*
* 321747b.pdf Register Level Programmer Manual (obsolete)
* 321747c.pdf Register Level Programmer Manual (new)
* DAQ-STC reference manual
*
* Other possibly relevant info:
*
* 320517c.pdf User manual (obsolete)
* 320517f.pdf User manual (new)
* 320889a.pdf delete
* 320906c.pdf maximum signal ratings
* 321066a.pdf about 16x
* 321791a.pdf discontinuation of at-mio-16e-10 rev. c
* 321808a.pdf about at-mio-16e-10 rev P
* 321837a.pdf discontinuation of at-mio-16de-10 rev d
* 321838a.pdf about at-mio-16de-10 rev N
*
* ISSUES:
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@ -131,7 +131,7 @@ int mite_setup2(struct comedi_device *dev,
mite->mite_io_addr + MITE_IODWBSR);
}
/*
* make sure dma bursts work. I got this from running a bus analyzer
* Make sure dma bursts work. I got this from running a bus analyzer
* on a pxi-6281 and a pxi-6713. 6713 powered up with register value
* of 0x61f and bursts worked. 6281 powered up with register value of
* 0x1f and bursts didn't work. The NI windows driver reads the
@ -223,7 +223,8 @@ struct mite_channel *mite_request_channel_in_range(struct mite_struct *mite,
unsigned long flags;
struct mite_channel *channel = NULL;
/* spin lock so mite_release_channel can be called safely
/*
* spin lock so mite_release_channel can be called safely
* from interrupts
*/
spin_lock_irqsave(&mite->lock, flags);
@ -245,15 +246,15 @@ void mite_release_channel(struct mite_channel *mite_chan)
struct mite_struct *mite = mite_chan->mite;
unsigned long flags;
/* spin lock to prevent races with mite_request_channel */
/* spin lock to prevent races with mite_request_channel */
spin_lock_irqsave(&mite->lock, flags);
if (mite->channel_allocated[mite_chan->channel]) {
mite_dma_disarm(mite_chan);
mite_dma_reset(mite_chan);
/*
* disable all channel's interrupts (do it after disarm/reset so
* MITE_CHCR reg isn't changed while dma is still active!)
*/
/*
* disable all channel's interrupts (do it after disarm/reset so
* MITE_CHCR reg isn't changed while dma is still active!)
*/
writel(CHCR_CLR_DMA_IE | CHCR_CLR_LINKP_IE |
CHCR_CLR_SAR_IE | CHCR_CLR_DONE_IE |
CHCR_CLR_MRDY_IE | CHCR_CLR_DRDY_IE |
@ -285,7 +286,7 @@ void mite_dma_arm(struct mite_channel *mite_chan)
writel(chor, mite->mite_io_addr + MITE_CHOR(mite_chan->channel));
mmiowb();
spin_unlock_irqrestore(&mite->lock, flags);
/* mite_dma_tcr(mite, channel); */
/* mite_dma_tcr(mite, channel); */
}
EXPORT_SYMBOL_GPL(mite_dma_arm);
@ -528,8 +529,10 @@ int mite_sync_input_dma(struct mite_channel *mite_chan,
}
count = nbytes - async->buf_write_count;
/* it's possible count will be negative due to
* conservative value returned by mite_bytes_written_to_memory_lb */
/*
* it's possible count will be negative due to conservative value
* returned by mite_bytes_written_to_memory_lb
*/
if (count <= 0)
return 0;
@ -550,7 +553,7 @@ int mite_sync_output_dma(struct mite_channel *mite_chan,
u32 nbytes_ub, nbytes_lb;
int count;
/* read alloc as much as we can */
/* read alloc as much as we can */
comedi_buf_read_alloc(s, async->prealloc_bufsz);
nbytes_lb = mite_bytes_read_from_memory_lb(mite_chan);
if (cmd->stop_src == TRIG_COUNT && (int)(nbytes_lb - stop_count) > 0)