/*
- 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:
-
-*/
-
-/* #define USE_KMALLOC */
+ * 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
#include <linux/module.h>
+#include <linux/slab.h>
#include "../comedi_pci.h"
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
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);
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 |
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);
}
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;
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)
module_exit(mite_module_exit);
MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
+MODULE_DESCRIPTION("Comedi helper for NI Mite PCI interface chip");
MODULE_LICENSE("GPL");
Code Review / kvmfornfv.git / blobdiff