Skip to content

L
linux-davinci
Commit 0882eaa6 authored by David Schleef's avatar David Schleef Committed by Greg Kroah-Hartman
Browse files
Options

Staging: comedi: add das08 drivers 

Supports [Keithley Metrabyte] DAS08 (isa-das08), [ComputerBoards] DAS08
(isa-das08), DAS08-PGM (das08-pgm), DAS08-PGH (das08-pgh), DAS08-PGL
(das08-pgl), DAS08-AOH (das08-aoh), DAS08-AOL (das08-aol), DAS08-AOM
(das08-aom), DAS08/JR-AO (das08/jr-ao), DAS08/JR-16-AO (das08jr-16-ao),
PCI-DAS08 (das08), PC104-DAS08 (pc104-das08), DAS08/JR/16 (das08jr/16)
[ComputerBoards] PCM-DAS08 (pcm-das08)

From: David Schleef <ds@schleef.org>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 07b509e6
Show whitespace changes
Inline Side-by-side
Showing with 1635 additions and 0 deletions
drivers/staging/comedi/drivers/das08.c 0 → 100644
View file @ 0882eaa6
/*
comedi/drivers/das08.c
DAS08 driver
COMEDI - Linux Control and Measurement Device Interface
Copyright (C) 2000 David A. Schleef <ds@schleef.org>
Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net>
Copyright (C) 2004 Salvador E. Tropea <set@users.sf.net> <set@ieee.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.
*****************************************************************
*/
/*
Driver: das08
Description: DAS-08 compatible boards
Author: Warren Jasper, ds, Frank Hess
Devices: [Keithley Metrabyte] DAS08 (isa-das08), [ComputerBoards] DAS08 (isa-das08),
DAS08-PGM (das08-pgm),
DAS08-PGH (das08-pgh), DAS08-PGL (das08-pgl), DAS08-AOH (das08-aoh),
DAS08-AOL (das08-aol), DAS08-AOM (das08-aom), DAS08/JR-AO (das08/jr-ao),
DAS08/JR-16-AO (das08jr-16-ao), PCI-DAS08 (das08),
PC104-DAS08 (pc104-das08), DAS08/JR/16 (das08jr/16)
Status: works
This is a rewrite of the das08 and das08jr drivers.
Options (for ISA cards):
[0] - base io address
Options (for pci-das08):
[0] - bus (optional)
[1] = slot (optional)
The das08 driver doesn't support asynchronous commands, since
the cheap das08 hardware doesn't really support them. The
comedi_rt_timer driver can be used to emulate commands for this
driver.
*/
#include "../comedidev.h"
#include <linux/delay.h>
#include "comedi_pci.h"
#include "8255.h"
#include "das08.h"
#define DRV_NAME "das08"
#define PCI_VENDOR_ID_COMPUTERBOARDS 0x1307
#define PCI_DEVICE_ID_PCIDAS08 0x29
#define PCIDAS08_SIZE 0x54
// pci configuration registers
#define INTCSR 0x4c
#define INTR1_ENABLE 0x1
#define INTR1_HIGH_POLARITY 0x2
#define PCI_INTR_ENABLE 0x40
#define INTR1_EDGE_TRIG 0x100 // requires high polarity
#define CNTRL 0x50
#define CNTRL_DIR 0x2
#define CNTRL_INTR 0x4
/*
cio-das08.pdf
"isa-das08"
0 a/d bits 0-3 start 8 bit
1 a/d bits 4-11 start 12 bit
2 eoc, ip1-3, irq, mux op1-4, inte, mux
3 unused unused
4567 8254
89ab 8255
requires hard-wiring for async ai
*/
#define DAS08_LSB 0
#define DAS08_MSB 1
#define DAS08_TRIG_12BIT 1
#define DAS08_STATUS 2
#define DAS08_EOC (1<<7)
#define DAS08_IRQ (1<<3)
#define DAS08_IP(x) (((x)>>4)&0x7)
#define DAS08_CONTROL 2
#define DAS08_MUX_MASK 0x7
#define DAS08_MUX(x) ((x) & DAS08_MUX_MASK)
#define DAS08_INTE (1<<3)
#define DAS08_DO_MASK 0xf0
#define DAS08_OP(x) (((x) << 4) & DAS08_DO_MASK)
/*
cio-das08jr.pdf
"das08/jr-ao"
0 a/d bits 0-3 unused
1 a/d bits 4-11 start 12 bit
2 eoc, mux mux
3 di do
4 unused ao0_lsb
5 unused ao0_msb
6 unused ao1_lsb
7 unused ao1_msb
*/
#define DAS08JR_DIO 3
#define DAS08JR_AO_LSB(x) ((x)?6:4)
#define DAS08JR_AO_MSB(x) ((x)?7:5)
/*
cio-das08_aox.pdf
"das08-aoh"
"das08-aol"
"das08-aom"
0 a/d bits 0-3 start 8 bit
1 a/d bits 4-11 start 12 bit
2 eoc, ip1-3, irq, mux op1-4, inte, mux
3 mux, gain status gain control
4567 8254
8 unused ao0_lsb
9 unused ao0_msb
a unused ao1_lsb
b unused ao1_msb
89ab
cdef 8255
*/
#define DAS08AO_GAIN_CONTROL 3
#define DAS08AO_GAIN_STATUS 3
#define DAS08AO_AO_LSB(x) ((x)?0xa:8)
#define DAS08AO_AO_MSB(x) ((x)?0xb:9)
#define DAS08AO_AO_UPDATE 8
/* gainlist same as _pgx_ below */
static int das08_ai_rinsn(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data);
static int das08_di_rbits(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data);
static int das08_do_wbits(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data);
static int das08jr_di_rbits(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data);
static int das08jr_do_wbits(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data);
static int das08jr_ao_winsn(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data);
static int das08ao_ao_winsn(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data);
static void i8254_set_mode_low(unsigned int base, int channel,
unsigned int mode);
static const comedi_lrange range_das08_pgl = { 9, {
BIP_RANGE(10),
BIP_RANGE(5),
BIP_RANGE(2.5),
BIP_RANGE(1.25),
BIP_RANGE(0.625),
UNI_RANGE(10),
UNI_RANGE(5),
UNI_RANGE(2.5),
UNI_RANGE(1.25)
}
};
static const comedi_lrange range_das08_pgh = { 12, {
BIP_RANGE(10),
BIP_RANGE(5),
BIP_RANGE(1),
BIP_RANGE(0.5),
BIP_RANGE(0.1),
BIP_RANGE(0.05),
BIP_RANGE(0.01),
BIP_RANGE(0.005),
UNI_RANGE(10),
UNI_RANGE(1),
UNI_RANGE(0.1),
UNI_RANGE(0.01),
}
};
static const comedi_lrange range_das08_pgm = { 9, {
BIP_RANGE(10),
BIP_RANGE(5),
BIP_RANGE(0.5),
BIP_RANGE(0.05),
BIP_RANGE(0.01),
UNI_RANGE(10),
UNI_RANGE(1),
UNI_RANGE(0.1),
UNI_RANGE(0.01)
}
}; /*
cio-das08jr.pdf
"das08/jr-ao"
0 a/d bits 0-3 unused
1 a/d bits 4-11 start 12 bit
2 eoc, mux mux
3 di do
4 unused ao0_lsb
5 unused ao0_msb
6 unused ao1_lsb
7 unused ao1_msb
*/
static const comedi_lrange *const das08_ai_lranges[] = {
&range_unknown,
&range_bipolar5,
&range_das08_pgh,
&range_das08_pgl,
&range_das08_pgm,
};
static const int das08_pgh_gainlist[] =
{ 8, 0, 10, 2, 12, 4, 14, 6, 1, 3, 5, 7 };
static const int das08_pgl_gainlist[] = { 8, 0, 2, 4, 6, 1, 3, 5, 7 };
static const int das08_pgm_gainlist[] = { 8, 0, 10, 12, 14, 9, 11, 13, 15 };
static const int *const das08_gainlists[] = {
NULL,
NULL,
das08_pgh_gainlist,
das08_pgl_gainlist,
das08_pgm_gainlist,
};
static const struct das08_board_struct das08_boards[] = {
{
name: "isa-das08", // cio-das08.pdf
bustype: isa,
ai: das08_ai_rinsn,
ai_nbits:12,
ai_pg: das08_pg_none,
ai_encoding:das08_encode12,
ao: NULL,
ao_nbits:12,
di: das08_di_rbits,
do_: das08_do_wbits,
do_nchan:4,
i8255_offset:8,
i8254_offset:4,
iosize: 16, // unchecked
},
{
name: "das08-pgm", // cio-das08pgx.pdf
bustype: isa,
ai: das08_ai_rinsn,
ai_nbits:12,
ai_pg: das08_pgm,
ai_encoding:das08_encode12,
ao: NULL,
di: das08_di_rbits,
do_: das08_do_wbits,
do_nchan:4,
i8255_offset:0,
i8254_offset:0x04,
iosize: 16, // unchecked
},
{
name: "das08-pgh", // cio-das08pgx.pdf
bustype: isa,
ai: das08_ai_rinsn,
ai_nbits:12,
ai_pg: das08_pgh,
ai_encoding:das08_encode12,
ao: NULL,
di: das08_di_rbits,
do_: das08_do_wbits,
do_nchan:4,
i8255_offset:0,
i8254_offset:0x04,
iosize: 16, // unchecked
},
{
name: "das08-pgl", // cio-das08pgx.pdf
bustype: isa,
ai: das08_ai_rinsn,
ai_nbits:12,
ai_pg: das08_pgl,
ai_encoding:das08_encode12,
ao: NULL,
di: das08_di_rbits,
do_: das08_do_wbits,
do_nchan:4,
i8255_offset:0,
i8254_offset:0x04,
iosize: 16, // unchecked
},
{
name: "das08-aoh", // cio-das08_aox.pdf
bustype: isa,
ai: das08_ai_rinsn,
ai_nbits:12,
ai_pg: das08_pgh,
ai_encoding:das08_encode12,
ao: das08ao_ao_winsn, // 8
ao_nbits:12,
di: das08_di_rbits,
do_: das08_do_wbits,
do_nchan:4,
i8255_offset:0x0c,
i8254_offset:0x04,
iosize: 16, // unchecked
},
{
name: "das08-aol", // cio-das08_aox.pdf
bustype: isa,
ai: das08_ai_rinsn,
ai_nbits:12,
ai_pg: das08_pgl,
ai_encoding:das08_encode12,
ao: das08ao_ao_winsn, // 8
ao_nbits:12,
di: das08_di_rbits,
do_: das08_do_wbits,
do_nchan:4,
i8255_offset:0x0c,
i8254_offset:0x04,
iosize: 16, // unchecked
},
{
name: "das08-aom", // cio-das08_aox.pdf
bustype: isa,
ai: das08_ai_rinsn,
ai_nbits:12,
ai_pg: das08_pgm,
ai_encoding:das08_encode12,
ao: das08ao_ao_winsn, // 8
ao_nbits:12,
di: das08_di_rbits,
do_: das08_do_wbits,
do_nchan:4,
i8255_offset:0x0c,
i8254_offset:0x04,
iosize: 16, // unchecked
},
{
name: "das08/jr-ao", // cio-das08-jr-ao.pdf
bustype: isa,
ai: das08_ai_rinsn,
ai_nbits:12,
ai_pg: das08_pg_none,
ai_encoding:das08_encode12,
ao: das08jr_ao_winsn,
ao_nbits:12,
di: das08jr_di_rbits,
do_: das08jr_do_wbits,
do_nchan:8,
i8255_offset:0,
i8254_offset:0,
iosize: 16, // unchecked
},
{
name: "das08jr-16-ao", // cio-das08jr-16-ao.pdf
bustype: isa,
ai: das08_ai_rinsn,
ai_nbits:16,
ai_pg: das08_pg_none,
ai_encoding:das08_encode12,
ao: das08jr_ao_winsn,
ao_nbits:16,
di: das08jr_di_rbits,
do_: das08jr_do_wbits,
do_nchan:8,
i8255_offset:0,
i8254_offset:0x04,
iosize: 16, // unchecked
},
#ifdef CONFIG_COMEDI_PCI
{
name: "das08", // pci-das08
id: PCI_DEVICE_ID_PCIDAS08,
bustype: pci,
ai: das08_ai_rinsn,
ai_nbits:12,
ai_pg: das08_bipolar5,
ai_encoding:das08_encode12,
ao: NULL,
ao_nbits:0,
di: das08_di_rbits,
do_: das08_do_wbits,
do_nchan:4,
i8255_offset:0,
i8254_offset:4,
iosize: 8,
},
#endif
{
name: "pc104-das08",
bustype: pc104,
ai: das08_ai_rinsn,
ai_nbits:12,
ai_pg: das08_pg_none,
ai_encoding:das08_encode12,
ao: NULL,
ao_nbits:0,
di: das08_di_rbits,
do_: das08_do_wbits,
do_nchan:4,
i8255_offset:0,
i8254_offset:4,
iosize: 16, // unchecked
},
#if 0
{
name: "das08/f",
},
{
name: "das08jr",
},
#endif
{
name: "das08jr/16",
bustype: isa,
ai: das08_ai_rinsn,
ai_nbits:16,
ai_pg: das08_pg_none,
ai_encoding:das08_encode16,
ao: NULL,
ao_nbits:0,
di: das08jr_di_rbits,
do_: das08jr_do_wbits,
do_nchan:8,
i8255_offset:0,
i8254_offset:0,
iosize: 16, // unchecked
},
#if 0
{
name: "das48-pga", // cio-das48-pga.pdf
},
{
name: "das08-pga-g2", // a KM board
},
#endif
};
#ifdef CONFIG_COMEDI_PCMCIA
struct das08_board_struct das08_cs_boards[NUM_DAS08_CS_BOARDS] = {
{
name: "pcm-das08",
id: 0x0, // XXX
bustype: pcmcia,
ai: das08_ai_rinsn,
ai_nbits:12,
ai_pg: das08_bipolar5,
ai_encoding:das08_pcm_encode12,
ao: NULL,
ao_nbits:0,
di: das08_di_rbits,
do_: das08_do_wbits,
do_nchan:3,
i8255_offset:0,
i8254_offset:0,
iosize: 16,
},
// duplicate so driver name can be used also
{
name: "das08_cs",
id: 0x0, // XXX
bustype: pcmcia,
ai: das08_ai_rinsn,
ai_nbits:12,
ai_pg: das08_bipolar5,
ai_encoding:das08_pcm_encode12,
ao: NULL,
ao_nbits:0,
di: das08_di_rbits,
do_: das08_do_wbits,
do_nchan:3,
i8255_offset:0,
i8254_offset:0,
iosize: 16,
},
};
#endif
#ifdef CONFIG_COMEDI_PCI
static DEFINE_PCI_DEVICE_TABLE(das08_pci_table) = {
{PCI_VENDOR_ID_COMPUTERBOARDS, PCI_DEVICE_ID_PCIDAS08, PCI_ANY_ID,
PCI_ANY_ID, 0, 0, 0},
{0}
};
MODULE_DEVICE_TABLE(pci, das08_pci_table);
#endif
#define devpriv ((struct das08_private_struct *)dev->private)
#define thisboard ((const struct das08_board_struct *)dev->board_ptr)
#define TIMEOUT 100000
static int das08_ai_rinsn(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data)
{
int i, n;
int chan;
int range;
int lsb, msb;
chan = CR_CHAN(insn->chanspec);
range = CR_RANGE(insn->chanspec);
/* clear crap */
inb(dev->iobase + DAS08_LSB);
inb(dev->iobase + DAS08_MSB);
/* set multiplexer */
spin_lock(&dev->spinlock); // lock to prevent race with digital output
devpriv->do_mux_bits &= ~DAS08_MUX_MASK;
devpriv->do_mux_bits |= DAS08_MUX(chan);
outb(devpriv->do_mux_bits, dev->iobase + DAS08_CONTROL);
spin_unlock(&dev->spinlock);
if (s->range_table->length > 1) {
/* set gain/range */
range = CR_RANGE(insn->chanspec);
outb(devpriv->pg_gainlist[range],
dev->iobase + DAS08AO_GAIN_CONTROL);
}
for (n = 0; n < insn->n; n++) {
/* clear over-range bits for 16-bit boards */
if (thisboard->ai_nbits == 16)
if (inb(dev->iobase + DAS08_MSB) & 0x80)
rt_printk("das08: over-range\n");
/* trigger conversion */
outb_p(0, dev->iobase + DAS08_TRIG_12BIT);
for (i = 0; i < TIMEOUT; i++) {
if (!(inb(dev->iobase + DAS08_STATUS) & DAS08_EOC))
break;
}
if (i == TIMEOUT) {
rt_printk("das08: timeout\n");
return -ETIME;
}
msb = inb(dev->iobase + DAS08_MSB);
lsb = inb(dev->iobase + DAS08_LSB);
if (thisboard->ai_encoding == das08_encode12) {
data[n] = (lsb >> 4) | (msb << 4);
} else if (thisboard->ai_encoding == das08_pcm_encode12) {
data[n] = (msb << 8) + lsb;
} else if (thisboard->ai_encoding == das08_encode16) {
/* FPOS 16-bit boards are sign-magnitude */
if (msb & 0x80)
data[n] = (1 << 15) | lsb | ((msb & 0x7f) << 8);
else
data[n] = (1 << 15) - (lsb | (msb & 0x7f) << 8);
} else {
comedi_error(dev, "bug! unknown ai encoding");
return -1;
}
}
return n;
}
static int das08_di_rbits(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data)
{
data[0] = 0;
data[1] = DAS08_IP(inb(dev->iobase + DAS08_STATUS));
return 2;
}
static int das08_do_wbits(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data)
{
int wbits;
// get current settings of digital output lines
wbits = (devpriv->do_mux_bits >> 4) & 0xf;
// null bits we are going to set
wbits &= ~data[0];
// set new bit values
wbits |= data[0] & data[1];
// remember digital output bits
spin_lock(&dev->spinlock); // prevent race with setting of analog input mux
devpriv->do_mux_bits &= ~DAS08_DO_MASK;
devpriv->do_mux_bits |= DAS08_OP(wbits);
outb(devpriv->do_mux_bits, dev->iobase + DAS08_CONTROL);
spin_unlock(&dev->spinlock);
data[1] = wbits;
return 2;
}
static int das08jr_di_rbits(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data)
{
data[0] = 0;
data[1] = inb(dev->iobase + DAS08JR_DIO);
return 2;
}
static int das08jr_do_wbits(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data)
{
// null bits we are going to set
devpriv->do_bits &= ~data[0];
// set new bit values
devpriv->do_bits |= data[0] & data[1];
outb(devpriv->do_bits, dev->iobase + DAS08JR_DIO);
data[1] = devpriv->do_bits;
return 2;
}
static int das08jr_ao_winsn(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data)
{
int n;
int lsb, msb;
int chan;
lsb = data[0] & 0xff;
msb = (data[0] >> 8) & 0xf;
chan = CR_CHAN(insn->chanspec);
for (n = 0; n < insn->n; n++) {
#if 0
outb(lsb, dev->iobase + devpriv->ao_offset_lsb[chan]);
outb(msb, dev->iobase + devpriv->ao_offset_msb[chan]);
#else
outb(lsb, dev->iobase + DAS08JR_AO_LSB(chan));
outb(msb, dev->iobase + DAS08JR_AO_MSB(chan));
#endif
/* load DACs */
inb(dev->iobase + DAS08JR_DIO);
}
return n;
}
/*
*
* The -aox boards have the DACs at a different offset and use
* a different method to force an update.
*
*/
static int das08ao_ao_winsn(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data)
{
int n;
int lsb, msb;
int chan;
lsb = data[0] & 0xff;
msb = (data[0] >> 8) & 0xf;
chan = CR_CHAN(insn->chanspec);
for (n = 0; n < insn->n; n++) {
#if 0
outb(lsb, dev->iobase + devpriv->ao_offset_lsb[chan]);
outb(msb, dev->iobase + devpriv->ao_offset_msb[chan]);
#else
outb(lsb, dev->iobase + DAS08AO_AO_LSB(chan));
outb(msb, dev->iobase + DAS08AO_AO_MSB(chan));
#endif
/* load DACs */
inb(dev->iobase + DAS08AO_AO_UPDATE);
}
return n;
}
static unsigned int i8254_read_channel_low(unsigned int base, int chan)
{
unsigned int msb, lsb;
/* The following instructions must be in order.
We must avoid other process reading the counter's value in the
middle.
The spin_lock isn't needed since ioctl calls grab the big kernel
lock automatically */
/*spin_lock(sp); */
outb(chan << 6, base + I8254_CTRL);
base += chan;
lsb = inb(base);
msb = inb(base);
/*spin_unlock(sp); */
return lsb | (msb << 8);
}
static void i8254_write_channel_low(unsigned int base, int chan,
unsigned int value)
{
unsigned int msb, lsb;
lsb = value & 0xFF;
msb = value >> 8;
/* write lsb, then msb */
base += chan;
/* See comments in i8254_read_channel_low */
/*spin_lock(sp); */
outb(lsb, base);
outb(msb, base);
/*spin_unlock(sp); */
}
static unsigned int i8254_read_channel(struct i8254_struct *st, int channel)
{
int chan = st->logic2phys[channel];
return i8254_read_channel_low(st->iobase, chan);
}
static void i8254_write_channel(struct i8254_struct *st, int channel,
unsigned int value)
{
int chan = st->logic2phys[channel];
i8254_write_channel_low(st->iobase, chan, value);
}
static void i8254_initialize(struct i8254_struct *st)
{
int i;
for (i = 0; i < 3; ++i)
i8254_set_mode_low(st->iobase, i, st->mode[i]);
}
static void i8254_set_mode_low(unsigned int base, int channel,
unsigned int mode)
{
outb((channel << 6) | 0x30 | (mode & 0x0F), base + I8254_CTRL);
}
static void i8254_set_mode(struct i8254_struct *st, int channel,
unsigned int mode)
{
int chan = st->logic2phys[channel];
st->mode[chan] = mode;
return i8254_set_mode_low(st->iobase, chan, mode);
}
static unsigned int i8254_read_status_low(unsigned int base, int channel)
{
outb(0xE0 | (2 << channel), base + I8254_CTRL);
return inb(base + channel);
}
static unsigned int i8254_read_status(struct i8254_struct *st, int channel)
{
int chan = st->logic2phys[channel];
return i8254_read_status_low(st->iobase, chan);
}
static int das08_counter_read(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data)
{
int chan = insn->chanspec;
//printk("Reading counter channel %d ",chan);
data[0] = i8254_read_channel(&devpriv->i8254, chan);
//printk("=> 0x%08X\n",data[0]);
return 1;
}
static int das08_counter_write(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data)
{
int chan = insn->chanspec;
//printk("Writing counter channel %d with 0x%04X\n",chan,data[0]);
i8254_write_channel(&devpriv->i8254, chan, data[0]);
return 1;
}
static int das08_counter_config(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, lsampl_t * data)
{
int chan = insn->chanspec;
if (insn->n != 2)
return -EINVAL;
switch (data[0]) {
case INSN_CONFIG_SET_COUNTER_MODE:
i8254_set_mode(&devpriv->i8254, chan, data[1]);
break;
case INSN_CONFIG_8254_READ_STATUS:
data[1] = i8254_read_status(&devpriv->i8254, chan);
break;
default:
return -EINVAL;
break;
}
return 2;
}
static int das08_attach(comedi_device * dev, comedi_devconfig * it);
static comedi_driver driver_das08 = {
driver_name: DRV_NAME,
module:THIS_MODULE,
attach:das08_attach,
detach:das08_common_detach,
board_name:&das08_boards[0].name,
num_names:sizeof(das08_boards) /
sizeof(struct das08_board_struct),
offset:sizeof(struct das08_board_struct),
};
int das08_common_attach(comedi_device * dev, unsigned long iobase)
{
comedi_subdevice *s;
int ret;
// allocate ioports for non-pcmcia, non-pci boards
if ((thisboard->bustype != pcmcia) && (thisboard->bustype != pci)) {
printk(" iobase 0x%lx\n", iobase);
if (!request_region(iobase, thisboard->iosize, DRV_NAME)) {
printk(" I/O port conflict\n");
return -EIO;
}
}
dev->iobase = iobase;
dev->board_name = thisboard->name;
if ((ret = alloc_subdevices(dev, 6)) < 0)
return ret;
s = dev->subdevices + 0;
/* ai */
if (thisboard->ai) {
s->type = COMEDI_SUBD_AI;
/* XXX some boards actually have differential inputs instead of single ended.
* The driver does nothing with arefs though, so it's no big deal. */
s->subdev_flags = SDF_READABLE | SDF_GROUND;
s->n_chan = 8;
s->maxdata = (1 << thisboard->ai_nbits) - 1;
s->range_table = das08_ai_lranges[thisboard->ai_pg];
s->insn_read = thisboard->ai;
devpriv->pg_gainlist = das08_gainlists[thisboard->ai_pg];
} else {
s->type = COMEDI_SUBD_UNUSED;
}
s = dev->subdevices + 1;
/* ao */
if (thisboard->ao) {
s->type = COMEDI_SUBD_AO;
// XXX lacks read-back insn
s->subdev_flags = SDF_WRITABLE;
s->n_chan = 2;
s->maxdata = (1 << thisboard->ao_nbits) - 1;
s->range_table = &range_bipolar5;
s->insn_write = thisboard->ao;
} else {
s->type = COMEDI_SUBD_UNUSED;
}
s = dev->subdevices + 2;
/* di */
if (thisboard->di) {
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE;
s->n_chan = (thisboard->di == das08_di_rbits) ? 3 : 8;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = thisboard->di;
} else {
s->type = COMEDI_SUBD_UNUSED;
}
s = dev->subdevices + 3;
/* do */
if (thisboard->do_) {
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
s->n_chan = thisboard->do_nchan;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = thisboard->do_;
} else {
s->type = COMEDI_SUBD_UNUSED;
}
s = dev->subdevices + 4;
/* 8255 */
if (thisboard->i8255_offset != 0) {
subdev_8255_init(dev, s, NULL, (unsigned long)(dev->iobase +
thisboard->i8255_offset));
} else {
s->type = COMEDI_SUBD_UNUSED;
}
s = dev->subdevices + 5;
/* 8254 */
if (thisboard->i8254_offset != 0) {
s->type = COMEDI_SUBD_COUNTER;
s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
s->n_chan = 3;
s->maxdata = 0xFFFF;
s->insn_read = das08_counter_read;
s->insn_write = das08_counter_write;
s->insn_config = das08_counter_config;
/* Set-up the 8254 structure */
devpriv->i8254.channels = 3;
devpriv->i8254.logic2phys[0] = 0;
devpriv->i8254.logic2phys[1] = 1;
devpriv->i8254.logic2phys[2] = 2;
devpriv->i8254.iobase = iobase + thisboard->i8254_offset;
devpriv->i8254.mode[0] =
devpriv->i8254.mode[1] =
devpriv->i8254.mode[2] = I8254_MODE0 | I8254_BINARY;
i8254_initialize(&devpriv->i8254);
} else {
s->type = COMEDI_SUBD_UNUSED;
}
return 0;
}
static int das08_attach(comedi_device * dev, comedi_devconfig * it)
{
int ret;
unsigned long iobase;
#ifdef CONFIG_COMEDI_PCI
unsigned long pci_iobase = 0;
struct pci_dev *pdev;
#endif
if ((ret = alloc_private(dev, sizeof(struct das08_private_struct))) < 0)
return ret;
printk("comedi%d: das08: ", dev->minor);
// deal with a pci board
if (thisboard->bustype == pci) {
#ifdef CONFIG_COMEDI_PCI
if (it->options[0] || it->options[1]) {
printk("bus %i slot %i ",
it->options[0], it->options[1]);
}
printk("\n");
// find card
for (pdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
pdev != NULL;
pdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) {
if (pdev->vendor == PCI_VENDOR_ID_COMPUTERBOARDS
&& pdev->device == PCI_DEVICE_ID_PCIDAS08) {
if (it->options[0] || it->options[1]) {
if (pdev->bus->number == it->options[0]
&& PCI_SLOT(pdev->devfn) ==
it->options[1]) {
break;
}
} else {
break;
}
}
}
if (!pdev) {
printk("No pci das08 cards found\n");
return -EIO;
}
devpriv->pdev = pdev;
// enable PCI device and reserve I/O spaces
if (comedi_pci_enable(pdev, DRV_NAME)) {
printk(" Error enabling PCI device and requesting regions\n");
return -EIO;
}
// read base addresses
pci_iobase = pci_resource_start(pdev, 1);
iobase = pci_resource_start(pdev, 2);
printk("pcibase 0x%lx iobase 0x%lx\n", pci_iobase, iobase);
devpriv->pci_iobase = pci_iobase;
#if 0
/* We could enable to pci-das08's interrupt here to make it possible
* to do timed input in this driver, but there is little point since
* conversions would have to be started by the interrupt handler
* so you might as well use comedi_rt_timer to emulate commands
*/
/* set source of interrupt trigger to counter2 output */
outb(CNTRL_INTR | CNTRL_DIR, pci_iobase + CNTRL);
/* Enable local interrupt 1 and pci interrupt */
outw(INTR1_ENABLE | PCI_INTR_ENABLE, pci_iobase + INTCSR);
#endif
#else /* CONFIG_COMEDI_PCI */
printk("this driver has not been built with PCI support.\n");
return -EINVAL;
#endif /* CONFIG_COMEDI_PCI */
} else {
iobase = it->options[0];
}
printk("\n");
return das08_common_attach(dev, iobase);
}
int das08_common_detach(comedi_device * dev)
{
printk(KERN_INFO "comedi%d: das08: remove\n", dev->minor);
if (dev->subdevices)
subdev_8255_cleanup(dev, dev->subdevices + 4);
// deallocate ioports for non-pcmcia, non-pci boards
if ((thisboard->bustype != pcmcia) && (thisboard->bustype != pci)) {
if (dev->iobase)
release_region(dev->iobase, thisboard->iosize);
}
#ifdef CONFIG_COMEDI_PCI
if (devpriv) {
if (devpriv->pdev) {
if (devpriv->pci_iobase) {
comedi_pci_disable(devpriv->pdev);
}
pci_dev_put(devpriv->pdev);
}
}
#endif
return 0;
}
#ifdef CONFIG_COMEDI_PCI
COMEDI_PCI_INITCLEANUP(driver_das08, das08_pci_table);
#else
COMEDI_INITCLEANUP(driver_das08);
#endif
EXPORT_SYMBOL_GPL(das08_common_attach);
EXPORT_SYMBOL_GPL(das08_common_detach);
#ifdef CONFIG_COMEDI_PCMCIA
EXPORT_SYMBOL_GPL(das08_cs_boards);
#endif
drivers/staging/comedi/drivers/das08.h 0 → 100644
View file @ 0882eaa6
/*
das08.h
Header for das08.c and das08_cs.c
Copyright (C) 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.
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.
*/
#ifndef _DAS08_H
#define _DAS08_H
enum das08_bustype { isa, pci, pcmcia, pc104 };
// different ways ai data is encoded in first two registers
enum das08_ai_encoding { das08_encode12, das08_encode16, das08_pcm_encode12 };
enum das08_lrange { das08_pg_none, das08_bipolar5, das08_pgh, das08_pgl,
das08_pgm };
typedef struct das08_board_struct {
const char *name;
unsigned int id; // id for pci/pcmcia boards
enum das08_bustype bustype;
void *ai;
unsigned int ai_nbits;
enum das08_lrange ai_pg;
enum das08_ai_encoding ai_encoding;
void *ao;
unsigned int ao_nbits;
void *di;
void *do_;
unsigned int do_nchan;
unsigned int i8255_offset;
unsigned int i8254_offset;
unsigned int iosize; // number of ioports used
} das08_board;
struct i8254_struct {
int channels; // available channels. Some could be used internally.
int logic2phys[3]; // to know which physical channel is.
int mode[3]; // the index is the real counter.
unsigned int iobase;
};
#define I8254_CNT0 0
#define I8254_CNT1 1
#define I8254_CNT2 2
#define I8254_CTRL 3
struct das08_private_struct {
unsigned int do_mux_bits; // bits for do/mux register on boards without seperate do register
unsigned int do_bits; // bits for do register on boards with register dedicated to digital out only
const unsigned int *pg_gainlist;
struct pci_dev *pdev; // struct for pci-das08
unsigned int pci_iobase; // additional base address for pci-das08
struct i8254_struct i8254;
};
#define NUM_DAS08_CS_BOARDS 2
extern struct das08_board_struct das08_cs_boards[NUM_DAS08_CS_BOARDS];
int das08_common_attach(comedi_device * dev, unsigned long iobase);
int das08_common_detach(comedi_device * dev);
#endif /* _DAS08_H */
drivers/staging/comedi/drivers/das08_cs.c 0 → 100644
View file @ 0882eaa6
/*
comedi/drivers/das08_cs.c
DAS08 driver
COMEDI - Linux Control and Measurement Device Interface
Copyright (C) 2000 David A. Schleef <ds@schleef.org>
Copyright (C) 2001,2002,2003 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.
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.
*****************************************************************
*/
/*
Driver: das08_cs
Description: DAS-08 PCMCIA boards
Author: Warren Jasper, ds, Frank Hess
Devices: [ComputerBoards] PCM-DAS08 (pcm-das08)
Status: works
This is the PCMCIA-specific support split off from the
das08 driver.
Options (for pcm-das08):
NONE
Command support does not exist, but could be added for this board.
*/
#include "../comedidev.h"
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/version.h>
#include "das08.h"
// pcmcia includes
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
static struct pcmcia_device *cur_dev = NULL;
#define thisboard ((const struct das08_board_struct *)dev->board_ptr)
static int das08_cs_attach(comedi_device * dev, comedi_devconfig * it);
static comedi_driver driver_das08_cs = {
driver_name:"das08_cs",
module:THIS_MODULE,
attach:das08_cs_attach,
detach:das08_common_detach,
board_name:&das08_cs_boards[0].name,
num_names:sizeof(das08_cs_boards) /
sizeof(struct das08_board_struct),
offset:sizeof(struct das08_board_struct),
};
static int das08_cs_attach(comedi_device * dev, comedi_devconfig * it)
{
int ret;
unsigned long iobase;
struct pcmcia_device *link = cur_dev; // XXX hack
if ((ret = alloc_private(dev, sizeof(struct das08_private_struct))) < 0)
return ret;
printk("comedi%d: das08_cs: ", dev->minor);
// deal with a pci board
if (thisboard->bustype == pcmcia) {
if (link == NULL) {
printk(" no pcmcia cards found\n");
return -EIO;
}
iobase = link->io.BasePort1;
} else {
printk(" bug! board does not have PCMCIA bustype\n");
return -EINVAL;
}
printk("\n");
return das08_common_attach(dev, iobase);
}
/*======================================================================
The following pcmcia code for the pcm-das08 is adapted from the
dummy_cs.c driver of the Linux PCMCIA Card Services package.
The initial developer of the original code is David A. Hinds
<dahinds@users.sourceforge.net>. Portions created by David A. Hinds
are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
======================================================================*/
/*
All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
you do not define PCMCIA_DEBUG at all, all the debug code will be
left out. If you compile with PCMCIA_DEBUG=0, the debug code will
be present but disabled -- but it can then be enabled for specific
modules at load time with a 'pc_debug=#' option to insmod.
*/
#ifdef PCMCIA_DEBUG
static int pc_debug = PCMCIA_DEBUG;
module_param(pc_debug, int, 0644);
#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
static const char *version =
"das08.c pcmcia code (Frank Hess), modified from dummy_cs.c 1.31 2001/08/24 12:13:13 (David Hinds)";
#else
#define DEBUG(n, args...)
#endif
/*====================================================================*/
static void das08_pcmcia_config(struct pcmcia_device *link);
static void das08_pcmcia_release(struct pcmcia_device *link);
static int das08_pcmcia_suspend(struct pcmcia_device *p_dev);
static int das08_pcmcia_resume(struct pcmcia_device *p_dev);
/*
The attach() and detach() entry points are used to create and destroy
"instances" of the driver, where each instance represents everything
needed to manage one actual PCMCIA card.
*/
static int das08_pcmcia_attach(struct pcmcia_device *);
static void das08_pcmcia_detach(struct pcmcia_device *);
/*
You'll also need to prototype all the functions that will actually
be used to talk to your device. See 'memory_cs' for a good example
of a fully self-sufficient driver; the other drivers rely more or
less on other parts of the kernel.
*/
/*
The dev_info variable is the "key" that is used to match up this
device driver with appropriate cards, through the card configuration
database.
*/
static const dev_info_t dev_info = "pcm-das08";
typedef struct local_info_t {
struct pcmcia_device *link;
dev_node_t node;
int stop;
struct bus_operations *bus;
} local_info_t;
/*======================================================================
das08_pcmcia_attach() creates an "instance" of the driver, allocating
local data structures for one device. The device is registered
with Card Services.
The dev_link structure is initialized, but we don't actually
configure the card at this point -- we wait until we receive a
card insertion event.
======================================================================*/
static int das08_pcmcia_attach(struct pcmcia_device *link)
{
local_info_t *local;
DEBUG(0, "das08_pcmcia_attach()\n");
/* Allocate space for private device-specific data */
local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
if (!local)
return -ENOMEM;
local->link = link;
link->priv = local;
/* Interrupt setup */
link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
link->irq.IRQInfo1 = IRQ_LEVEL_ID;
link->irq.Handler = NULL;
/*
General socket configuration defaults can go here. In this
client, we assume very little, and rely on the CIS for almost
everything. In most clients, many details (i.e., number, sizes,
and attributes of IO windows) are fixed by the nature of the
device, and can be hard-wired here.
*/
link->conf.Attributes = 0;
link->conf.IntType = INT_MEMORY_AND_IO;
cur_dev = link;
das08_pcmcia_config(link);
return 0;
} /* das08_pcmcia_attach */
/*======================================================================
This deletes a driver "instance". The device is de-registered
with Card Services. If it has been released, all local data
structures are freed. Otherwise, the structures will be freed
when the device is released.
======================================================================*/
static void das08_pcmcia_detach(struct pcmcia_device *link)
{
DEBUG(0, "das08_pcmcia_detach(0x%p)\n", link);
if (link->dev_node) {
((local_info_t *) link->priv)->stop = 1;
das08_pcmcia_release(link);
}
/* This points to the parent local_info_t struct */
if (link->priv)
kfree(link->priv);
} /* das08_pcmcia_detach */
/*======================================================================
das08_pcmcia_config() is scheduled to run after a CARD_INSERTION event
is received, to configure the PCMCIA socket, and to make the
device available to the system.
======================================================================*/
static void das08_pcmcia_config(struct pcmcia_device *link)
{
local_info_t *dev = link->priv;
tuple_t tuple;
cisparse_t parse;
int last_fn, last_ret;
u_char buf[64];
cistpl_cftable_entry_t dflt = { 0 };
DEBUG(0, "das08_pcmcia_config(0x%p)\n", link);
/*
This reads the card's CONFIG tuple to find its configuration
registers.
*/
tuple.DesiredTuple = CISTPL_CONFIG;
tuple.Attributes = 0;
tuple.TupleData = buf;
tuple.TupleDataMax = sizeof(buf);
tuple.TupleOffset = 0;
last_fn = GetFirstTuple;
if ((last_ret = pcmcia_get_first_tuple(link, &tuple)) != 0)
goto cs_failed;
last_fn = GetTupleData;
if ((last_ret = pcmcia_get_tuple_data(link, &tuple)) != 0)
goto cs_failed;
last_fn = ParseTuple;
if ((last_ret = pcmcia_parse_tuple(&tuple, &parse)) != 0)
goto cs_failed;
link->conf.ConfigBase = parse.config.base;
link->conf.Present = parse.config.rmask[0];
/*
In this loop, we scan the CIS for configuration table entries,
each of which describes a valid card configuration, including
voltage, IO window, memory window, and interrupt settings.
We make no assumptions about the card to be configured: we use
just the information available in the CIS. In an ideal world,
this would work for any PCMCIA card, but it requires a complete
and accurate CIS. In practice, a driver usually "knows" most of
these things without consulting the CIS, and most client drivers
will only use the CIS to fill in implementation-defined details.
*/
tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
last_fn = GetFirstTuple;
if ((last_ret = pcmcia_get_first_tuple(link, &tuple)) != 0)
goto cs_failed;
while (1) {
cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
if ((last_ret = pcmcia_get_tuple_data(link, &tuple)) != 0)
goto next_entry;
if ((last_ret = pcmcia_parse_tuple(&tuple, &parse)) != 0)
goto next_entry;
if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
dflt = *cfg;
if (cfg->index == 0)
goto next_entry;
link->conf.ConfigIndex = cfg->index;
/* Does this card need audio output? */
/* if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
link->conf.Attributes |= CONF_ENABLE_SPKR;
link->conf.Status = CCSR_AUDIO_ENA;
}
*/
/* Do we need to allocate an interrupt? */
if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
link->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
link->io.NumPorts1 = link->io.NumPorts2 = 0;
if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
if (!(io->flags & CISTPL_IO_8BIT))
link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
if (!(io->flags & CISTPL_IO_16BIT))
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
link->io.BasePort1 = io->win[0].base;
link->io.NumPorts1 = io->win[0].len;
if (io->nwin > 1) {
link->io.Attributes2 = link->io.Attributes1;
link->io.BasePort2 = io->win[1].base;
link->io.NumPorts2 = io->win[1].len;
}
/* This reserves IO space but doesn't actually enable it */
if (pcmcia_request_io(link, &link->io) != 0)
goto next_entry;
}
/* If we got this far, we're cool! */
break;
next_entry:
last_fn = GetNextTuple;
if ((last_ret = pcmcia_get_next_tuple(link, &tuple)) != 0)
goto cs_failed;
}
if (link->conf.Attributes & CONF_ENABLE_IRQ) {
last_fn = RequestIRQ;
if ((last_ret = pcmcia_request_irq(link, &link->irq)) != 0)
goto cs_failed;
}
/*
This actually configures the PCMCIA socket -- setting up
the I/O windows and the interrupt mapping, and putting the
card and host interface into "Memory and IO" mode.
*/
last_fn = RequestConfiguration;
if ((last_ret = pcmcia_request_configuration(link, &link->conf)) != 0)
goto cs_failed;
/*
At this point, the dev_node_t structure(s) need to be
initialized and arranged in a linked list at link->dev.
*/
sprintf(dev->node.dev_name, "pcm-das08");
dev->node.major = dev->node.minor = 0;
link->dev_node = &dev->node;
/* Finally, report what we've done */
printk(KERN_INFO "%s: index 0x%02x",
dev->node.dev_name, link->conf.ConfigIndex);
if (link->conf.Attributes & CONF_ENABLE_IRQ)
printk(", irq %u", link->irq.AssignedIRQ);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1 + link->io.NumPorts1 - 1);
if (link->io.NumPorts2)
printk(" & 0x%04x-0x%04x", link->io.BasePort2,
link->io.BasePort2 + link->io.NumPorts2 - 1);
printk("\n");
return;
cs_failed:
cs_error(link, last_fn, last_ret);
das08_pcmcia_release(link);
} /* das08_pcmcia_config */
/*======================================================================
After a card is removed, das08_pcmcia_release() will unregister the
device, and release the PCMCIA configuration. If the device is
still open, this will be postponed until it is closed.
======================================================================*/
static void das08_pcmcia_release(struct pcmcia_device *link)
{
DEBUG(0, "das08_pcmcia_release(0x%p)\n", link);
pcmcia_disable_device(link);
} /* das08_pcmcia_release */
/*======================================================================
The card status event handler. Mostly, this schedules other
stuff to run after an event is received.
When a CARD_REMOVAL event is received, we immediately set a
private flag to block future accesses to this device. All the
functions that actually access the device should check this flag
to make sure the card is still present.
======================================================================*/
static int das08_pcmcia_suspend(struct pcmcia_device *link)
{
local_info_t *local = link->priv;
/* Mark the device as stopped, to block IO until later */
local->stop = 1;
return 0;
} /* das08_pcmcia_suspend */
static int das08_pcmcia_resume(struct pcmcia_device *link)
{
local_info_t *local = link->priv;
local->stop = 0;
return 0;
} /* das08_pcmcia_resume */
/*====================================================================*/
static struct pcmcia_device_id das08_cs_id_table[] = {
PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4001),
PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, das08_cs_id_table);
struct pcmcia_driver das08_cs_driver = {
.probe = das08_pcmcia_attach,
.remove = das08_pcmcia_detach,
.suspend = das08_pcmcia_suspend,
.resume = das08_pcmcia_resume,
.id_table = das08_cs_id_table,
.owner = THIS_MODULE,
.drv = {
.name = dev_info,
},
};
static int __init init_das08_pcmcia_cs(void)
{
DEBUG(0, "%s\n", version);
pcmcia_register_driver(&das08_cs_driver);
return 0;
}
static void __exit exit_das08_pcmcia_cs(void)
{
DEBUG(0, "das08_pcmcia_cs: unloading\n");
pcmcia_unregister_driver(&das08_cs_driver);
}
static int __init das08_cs_init_module(void)
{
int ret;
ret = init_das08_pcmcia_cs();
if (ret < 0)
return ret;
return comedi_driver_register(&driver_das08_cs);
}
static void __exit das08_cs_exit_module(void)
{
exit_das08_pcmcia_cs();
comedi_driver_unregister(&driver_das08_cs);
}
MODULE_LICENSE("GPL");
module_init(das08_cs_init_module);
module_exit(das08_cs_exit_module);
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment