Staging
v0.5.1
v0.5.1
https://github.com/torvalds/linux
Tip revision: 33688abb2802ff3a230bd2441f765477b94cc89e authored by Linus Torvalds on 20 June 2016, 04:30:02 UTC
Linux 4.7-rc4
Linux 4.7-rc4
Tip revision: 33688ab
daqboard2000.c
/*
* comedi/drivers/daqboard2000.c
* hardware driver for IOtech DAQboard/2000
*
* COMEDI - Linux Control and Measurement Device Interface
* Copyright (C) 1999 Anders Blomdell <anders.blomdell@control.lth.se>
*
* 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.
*/
/*
* Driver: daqboard2000
* Description: IOTech DAQBoard/2000
* Author: Anders Blomdell <anders.blomdell@control.lth.se>
* Status: works
* Updated: Mon, 14 Apr 2008 15:28:52 +0100
* Devices: [IOTech] DAQBoard/2000 (daqboard2000)
*
* Much of the functionality of this driver was determined from reading
* the source code for the Windows driver.
*
* The FPGA on the board requires firmware, which is available from
* http://www.comedi.org in the comedi_nonfree_firmware tarball.
*
* Configuration options: not applicable, uses PCI auto config
*/
/*
* This card was obviously never intended to leave the Windows world,
* since it lacked all kind of hardware documentation (except for cable
* pinouts, plug and pray has something to catch up with yet).
*
* With some help from our swedish distributor, we got the Windows sourcecode
* for the card, and here are the findings so far.
*
* 1. A good document that describes the PCI interface chip is 9080db-106.pdf
* available from http://www.plxtech.com/products/io/pci9080
*
* 2. The initialization done so far is:
* a. program the FPGA (windows code sans a lot of error messages)
* b.
*
* 3. Analog out seems to work OK with DAC's disabled, if DAC's are enabled,
* you have to output values to all enabled DAC's until result appears, I
* guess that it has something to do with pacer clocks, but the source
* gives me no clues. I'll keep it simple so far.
*
* 4. Analog in.
* Each channel in the scanlist seems to be controlled by four
* control words:
*
* Word0:
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* ! | | | ! | | | ! | | | ! | | | !
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
* Word1:
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* ! | | | ! | | | ! | | | ! | | | !
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | | | | | | |
* +------+------+ | | | | +-- Digital input (??)
* | | | | +---- 10 us settling time
* | | | +------ Suspend acquisition (last to scan)
* | | +-------- Simultaneous sample and hold
* | +---------- Signed data format
* +------------------------- Correction offset low
*
* Word2:
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* ! | | | ! | | | ! | | | ! | | | !
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | | | | | | | | | |
* +-----+ +--+--+ +++ +++ +--+--+
* | | | | +----- Expansion channel
* | | | +----------- Expansion gain
* | | +--------------- Channel (low)
* | +--------------------- Correction offset high
* +----------------------------- Correction gain low
* Word3:
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* ! | | | ! | | | ! | | | ! | | | !
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | | | | | | | | |
* +------+------+ | | +-+-+ | | +-- Low bank enable
* | | | | | +---- High bank enable
* | | | | +------ Hi/low select
* | | | +---------- Gain (1,?,2,4,8,16,32,64)
* | | +-------------- differential/single ended
* | +---------------- Unipolar
* +------------------------- Correction gain high
*
* 999. The card seems to have an incredible amount of capabilities, but
* trying to reverse engineer them from the Windows source is beyond my
* patience.
*
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include "../comedi_pci.h"
#include "8255.h"
#define DAQBOARD2000_FIRMWARE "daqboard2000_firmware.bin"
#define DAQBOARD2000_SUBSYSTEM_IDS2 0x0002 /* Daqboard/2000 - 2 Dacs */
#define DAQBOARD2000_SUBSYSTEM_IDS4 0x0004 /* Daqboard/2000 - 4 Dacs */
/* Initialization bits for the Serial EEPROM Control Register */
#define DAQBOARD2000_SECRProgPinHi 0x8001767e
#define DAQBOARD2000_SECRProgPinLo 0x8000767e
#define DAQBOARD2000_SECRLocalBusHi 0xc000767e
#define DAQBOARD2000_SECRLocalBusLo 0x8000767e
#define DAQBOARD2000_SECRReloadHi 0xa000767e
#define DAQBOARD2000_SECRReloadLo 0x8000767e
/* SECR status bits */
#define DAQBOARD2000_EEPROM_PRESENT 0x10000000
/* CPLD status bits */
#define DAQBOARD2000_CPLD_INIT 0x0002
#define DAQBOARD2000_CPLD_DONE 0x0004
static const struct comedi_lrange range_daqboard2000_ai = {
13, {
BIP_RANGE(10),
BIP_RANGE(5),
BIP_RANGE(2.5),
BIP_RANGE(1.25),
BIP_RANGE(0.625),
BIP_RANGE(0.3125),
BIP_RANGE(0.156),
UNI_RANGE(10),
UNI_RANGE(5),
UNI_RANGE(2.5),
UNI_RANGE(1.25),
UNI_RANGE(0.625),
UNI_RANGE(0.3125)
}
};
/*
* Register Memory Map
*/
#define acqControl 0x00 /* u16 */
#define acqScanListFIFO 0x02 /* u16 */
#define acqPacerClockDivLow 0x04 /* u32 */
#define acqScanCounter 0x08 /* u16 */
#define acqPacerClockDivHigh 0x0a /* u16 */
#define acqTriggerCount 0x0c /* u16 */
#define acqResultsFIFO 0x10 /* u16 */
#define acqResultsShadow 0x14 /* u16 */
#define acqAdcResult 0x18 /* u16 */
#define dacScanCounter 0x1c /* u16 */
#define dacControl 0x20 /* u16 */
#define dacFIFO 0x24 /* s16 */
#define dacPacerClockDiv 0x2a /* u16 */
#define refDacs 0x2c /* u16 */
#define dioControl 0x30 /* u16 */
#define dioP3hsioData 0x32 /* s16 */
#define dioP3Control 0x34 /* u16 */
#define calEepromControl 0x36 /* u16 */
#define dacSetting(x) (0x38 + (x)*2) /* s16 */
#define dioP2ExpansionIO8Bit 0x40 /* s16 */
#define ctrTmrControl 0x80 /* u16 */
#define ctrInput(x) (0x88 + (x)*2) /* s16 */
#define timerDivisor(x) (0xa0 + (x)*2) /* u16 */
#define dmaControl 0xb0 /* u16 */
#define trigControl 0xb2 /* u16 */
#define calEeprom 0xb8 /* u16 */
#define acqDigitalMark 0xba /* u16 */
#define trigDacs 0xbc /* u16 */
#define dioP2ExpansionIO16Bit(x) (0xc0 + (x)*2) /* s16 */
/* Scan Sequencer programming */
#define DAQBOARD2000_SeqStartScanList 0x0011
#define DAQBOARD2000_SeqStopScanList 0x0010
/* Prepare for acquisition */
#define DAQBOARD2000_AcqResetScanListFifo 0x0004
#define DAQBOARD2000_AcqResetResultsFifo 0x0002
#define DAQBOARD2000_AcqResetConfigPipe 0x0001
/* Acqusition status bits */
#define DAQBOARD2000_AcqResultsFIFOMore1Sample 0x0001
#define DAQBOARD2000_AcqResultsFIFOHasValidData 0x0002
#define DAQBOARD2000_AcqResultsFIFOOverrun 0x0004
#define DAQBOARD2000_AcqLogicScanning 0x0008
#define DAQBOARD2000_AcqConfigPipeFull 0x0010
#define DAQBOARD2000_AcqScanListFIFOEmpty 0x0020
#define DAQBOARD2000_AcqAdcNotReady 0x0040
#define DAQBOARD2000_ArbitrationFailure 0x0080
#define DAQBOARD2000_AcqPacerOverrun 0x0100
#define DAQBOARD2000_DacPacerOverrun 0x0200
#define DAQBOARD2000_AcqHardwareError 0x01c0
/* Scan Sequencer programming */
#define DAQBOARD2000_SeqStartScanList 0x0011
#define DAQBOARD2000_SeqStopScanList 0x0010
/* Pacer Clock Control */
#define DAQBOARD2000_AdcPacerInternal 0x0030
#define DAQBOARD2000_AdcPacerExternal 0x0032
#define DAQBOARD2000_AdcPacerEnable 0x0031
#define DAQBOARD2000_AdcPacerEnableDacPacer 0x0034
#define DAQBOARD2000_AdcPacerDisable 0x0030
#define DAQBOARD2000_AdcPacerNormalMode 0x0060
#define DAQBOARD2000_AdcPacerCompatibilityMode 0x0061
#define DAQBOARD2000_AdcPacerInternalOutEnable 0x0008
#define DAQBOARD2000_AdcPacerExternalRising 0x0100
/* DAC status */
#define DAQBOARD2000_DacFull 0x0001
#define DAQBOARD2000_RefBusy 0x0002
#define DAQBOARD2000_TrgBusy 0x0004
#define DAQBOARD2000_CalBusy 0x0008
#define DAQBOARD2000_Dac0Busy 0x0010
#define DAQBOARD2000_Dac1Busy 0x0020
#define DAQBOARD2000_Dac2Busy 0x0040
#define DAQBOARD2000_Dac3Busy 0x0080
/* DAC control */
#define DAQBOARD2000_Dac0Enable 0x0021
#define DAQBOARD2000_Dac1Enable 0x0031
#define DAQBOARD2000_Dac2Enable 0x0041
#define DAQBOARD2000_Dac3Enable 0x0051
#define DAQBOARD2000_DacEnableBit 0x0001
#define DAQBOARD2000_Dac0Disable 0x0020
#define DAQBOARD2000_Dac1Disable 0x0030
#define DAQBOARD2000_Dac2Disable 0x0040
#define DAQBOARD2000_Dac3Disable 0x0050
#define DAQBOARD2000_DacResetFifo 0x0004
#define DAQBOARD2000_DacPatternDisable 0x0060
#define DAQBOARD2000_DacPatternEnable 0x0061
#define DAQBOARD2000_DacSelectSignedData 0x0002
#define DAQBOARD2000_DacSelectUnsignedData 0x0000
/* Trigger Control */
#define DAQBOARD2000_TrigAnalog 0x0000
#define DAQBOARD2000_TrigTTL 0x0010
#define DAQBOARD2000_TrigTransHiLo 0x0004
#define DAQBOARD2000_TrigTransLoHi 0x0000
#define DAQBOARD2000_TrigAbove 0x0000
#define DAQBOARD2000_TrigBelow 0x0004
#define DAQBOARD2000_TrigLevelSense 0x0002
#define DAQBOARD2000_TrigEdgeSense 0x0000
#define DAQBOARD2000_TrigEnable 0x0001
#define DAQBOARD2000_TrigDisable 0x0000
/* Reference Dac Selection */
#define DAQBOARD2000_PosRefDacSelect 0x0100
#define DAQBOARD2000_NegRefDacSelect 0x0000
struct daq200_boardtype {
const char *name;
int id;
};
static const struct daq200_boardtype boardtypes[] = {
{"ids2", DAQBOARD2000_SUBSYSTEM_IDS2},
{"ids4", DAQBOARD2000_SUBSYSTEM_IDS4},
};
struct daqboard2000_private {
enum {
card_daqboard_2000
} card;
void __iomem *plx;
};
static void writeAcqScanListEntry(struct comedi_device *dev, u16 entry)
{
/* udelay(4); */
writew(entry & 0x00ff, dev->mmio + acqScanListFIFO);
/* udelay(4); */
writew((entry >> 8) & 0x00ff, dev->mmio + acqScanListFIFO);
}
static void setup_sampling(struct comedi_device *dev, int chan, int gain)
{
u16 word0, word1, word2, word3;
/* Channel 0-7 diff, channel 8-23 single ended */
word0 = 0;
word1 = 0x0004; /* Last scan */
word2 = (chan << 6) & 0x00c0;
switch (chan / 4) {
case 0:
word3 = 0x0001;
break;
case 1:
word3 = 0x0002;
break;
case 2:
word3 = 0x0005;
break;
case 3:
word3 = 0x0006;
break;
case 4:
word3 = 0x0041;
break;
case 5:
word3 = 0x0042;
break;
default:
word3 = 0;
break;
}
/*
dev->eeprom.correctionDACSE[i][j][k].offset = 0x800;
dev->eeprom.correctionDACSE[i][j][k].gain = 0xc00;
*/
/* These should be read from EEPROM */
word2 |= 0x0800;
word3 |= 0xc000;
writeAcqScanListEntry(dev, word0);
writeAcqScanListEntry(dev, word1);
writeAcqScanListEntry(dev, word2);
writeAcqScanListEntry(dev, word3);
}
static int daqboard2000_ai_status(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned long context)
{
unsigned int status;
status = readw(dev->mmio + acqControl);
if (status & context)
return 0;
return -EBUSY;
}
static int daqboard2000_ai_insn_read(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
int gain, chan;
int ret;
int i;
writew(DAQBOARD2000_AcqResetScanListFifo |
DAQBOARD2000_AcqResetResultsFifo |
DAQBOARD2000_AcqResetConfigPipe, dev->mmio + acqControl);
/*
* If pacer clock is not set to some high value (> 10 us), we
* risk multiple samples to be put into the result FIFO.
*/
/* 1 second, should be long enough */
writel(1000000, dev->mmio + acqPacerClockDivLow);
writew(0, dev->mmio + acqPacerClockDivHigh);
gain = CR_RANGE(insn->chanspec);
chan = CR_CHAN(insn->chanspec);
/* This doesn't look efficient. I decided to take the conservative
* approach when I did the insn conversion. Perhaps it would be
* better to have broken it completely, then someone would have been
* forced to fix it. --ds */
for (i = 0; i < insn->n; i++) {
setup_sampling(dev, chan, gain);
/* Enable reading from the scanlist FIFO */
writew(DAQBOARD2000_SeqStartScanList, dev->mmio + acqControl);
ret = comedi_timeout(dev, s, insn, daqboard2000_ai_status,
DAQBOARD2000_AcqConfigPipeFull);
if (ret)
return ret;
writew(DAQBOARD2000_AdcPacerEnable, dev->mmio + acqControl);
ret = comedi_timeout(dev, s, insn, daqboard2000_ai_status,
DAQBOARD2000_AcqLogicScanning);
if (ret)
return ret;
ret = comedi_timeout(dev, s, insn, daqboard2000_ai_status,
DAQBOARD2000_AcqResultsFIFOHasValidData);
if (ret)
return ret;
data[i] = readw(dev->mmio + acqResultsFIFO);
writew(DAQBOARD2000_AdcPacerDisable, dev->mmio + acqControl);
writew(DAQBOARD2000_SeqStopScanList, dev->mmio + acqControl);
}
return i;
}
static int daqboard2000_ao_eoc(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned long context)
{
unsigned int chan = CR_CHAN(insn->chanspec);
unsigned int status;
status = readw(dev->mmio + dacControl);
if ((status & ((chan + 1) * 0x0010)) == 0)
return 0;
return -EBUSY;
}
static int daqboard2000_ao_insn_write(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned int chan = CR_CHAN(insn->chanspec);
int i;
for (i = 0; i < insn->n; i++) {
unsigned int val = data[i];
int ret;
writew(val, dev->mmio + dacSetting(chan));
ret = comedi_timeout(dev, s, insn, daqboard2000_ao_eoc, 0);
if (ret)
return ret;
s->readback[chan] = val;
}
return insn->n;
}
static void daqboard2000_resetLocalBus(struct comedi_device *dev)
{
struct daqboard2000_private *devpriv = dev->private;
writel(DAQBOARD2000_SECRLocalBusHi, devpriv->plx + 0x6c);
mdelay(10);
writel(DAQBOARD2000_SECRLocalBusLo, devpriv->plx + 0x6c);
mdelay(10);
}
static void daqboard2000_reloadPLX(struct comedi_device *dev)
{
struct daqboard2000_private *devpriv = dev->private;
writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c);
mdelay(10);
writel(DAQBOARD2000_SECRReloadHi, devpriv->plx + 0x6c);
mdelay(10);
writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c);
mdelay(10);
}
static void daqboard2000_pulseProgPin(struct comedi_device *dev)
{
struct daqboard2000_private *devpriv = dev->private;
writel(DAQBOARD2000_SECRProgPinHi, devpriv->plx + 0x6c);
mdelay(10);
writel(DAQBOARD2000_SECRProgPinLo, devpriv->plx + 0x6c);
mdelay(10); /* Not in the original code, but I like symmetry... */
}
static int daqboard2000_pollCPLD(struct comedi_device *dev, int mask)
{
int result = 0;
int i;
int cpld;
/* timeout after 50 tries -> 5ms */
for (i = 0; i < 50; i++) {
cpld = readw(dev->mmio + 0x1000);
if ((cpld & mask) == mask) {
result = 1;
break;
}
udelay(100);
}
udelay(5);
return result;
}
static int daqboard2000_writeCPLD(struct comedi_device *dev, int data)
{
int result = 0;
udelay(10);
writew(data, dev->mmio + 0x1000);
if ((readw(dev->mmio + 0x1000) & DAQBOARD2000_CPLD_INIT) ==
DAQBOARD2000_CPLD_INIT) {
result = 1;
}
return result;
}
static int initialize_daqboard2000(struct comedi_device *dev,
const u8 *cpld_array, size_t len,
unsigned long context)
{
struct daqboard2000_private *devpriv = dev->private;
int result = -EIO;
/* Read the serial EEPROM control register */
int secr;
int retry;
size_t i;
/* Check to make sure the serial eeprom is present on the board */
secr = readl(devpriv->plx + 0x6c);
if (!(secr & DAQBOARD2000_EEPROM_PRESENT))
return -EIO;
for (retry = 0; retry < 3; retry++) {
daqboard2000_resetLocalBus(dev);
daqboard2000_reloadPLX(dev);
daqboard2000_pulseProgPin(dev);
if (daqboard2000_pollCPLD(dev, DAQBOARD2000_CPLD_INIT)) {
for (i = 0; i < len; i++) {
if (cpld_array[i] == 0xff &&
cpld_array[i + 1] == 0x20)
break;
}
for (; i < len; i += 2) {
int data =
(cpld_array[i] << 8) + cpld_array[i + 1];
if (!daqboard2000_writeCPLD(dev, data))
break;
}
if (i >= len) {
daqboard2000_resetLocalBus(dev);
daqboard2000_reloadPLX(dev);
result = 0;
break;
}
}
}
return result;
}
static void daqboard2000_adcStopDmaTransfer(struct comedi_device *dev)
{
}
static void daqboard2000_adcDisarm(struct comedi_device *dev)
{
/* Disable hardware triggers */
udelay(2);
writew(DAQBOARD2000_TrigAnalog | DAQBOARD2000_TrigDisable,
dev->mmio + trigControl);
udelay(2);
writew(DAQBOARD2000_TrigTTL | DAQBOARD2000_TrigDisable,
dev->mmio + trigControl);
/* Stop the scan list FIFO from loading the configuration pipe */
udelay(2);
writew(DAQBOARD2000_SeqStopScanList, dev->mmio + acqControl);
/* Stop the pacer clock */
udelay(2);
writew(DAQBOARD2000_AdcPacerDisable, dev->mmio + acqControl);
/* Stop the input dma (abort channel 1) */
daqboard2000_adcStopDmaTransfer(dev);
}
static void daqboard2000_activateReferenceDacs(struct comedi_device *dev)
{
unsigned int val;
int timeout;
/* Set the + reference dac value in the FPGA */
writew(0x80 | DAQBOARD2000_PosRefDacSelect, dev->mmio + refDacs);
for (timeout = 0; timeout < 20; timeout++) {
val = readw(dev->mmio + dacControl);
if ((val & DAQBOARD2000_RefBusy) == 0)
break;
udelay(2);
}
/* Set the - reference dac value in the FPGA */
writew(0x80 | DAQBOARD2000_NegRefDacSelect, dev->mmio + refDacs);
for (timeout = 0; timeout < 20; timeout++) {
val = readw(dev->mmio + dacControl);
if ((val & DAQBOARD2000_RefBusy) == 0)
break;
udelay(2);
}
}
static void daqboard2000_initializeCtrs(struct comedi_device *dev)
{
}
static void daqboard2000_initializeTmrs(struct comedi_device *dev)
{
}
static void daqboard2000_dacDisarm(struct comedi_device *dev)
{
}
static void daqboard2000_initializeAdc(struct comedi_device *dev)
{
daqboard2000_adcDisarm(dev);
daqboard2000_activateReferenceDacs(dev);
daqboard2000_initializeCtrs(dev);
daqboard2000_initializeTmrs(dev);
}
static void daqboard2000_initializeDac(struct comedi_device *dev)
{
daqboard2000_dacDisarm(dev);
}
static int daqboard2000_8255_cb(struct comedi_device *dev,
int dir, int port, int data,
unsigned long iobase)
{
if (dir) {
writew(data, dev->mmio + iobase + port * 2);
return 0;
}
return readw(dev->mmio + iobase + port * 2);
}
static const void *daqboard2000_find_boardinfo(struct comedi_device *dev,
struct pci_dev *pcidev)
{
const struct daq200_boardtype *board;
int i;
if (pcidev->subsystem_device != PCI_VENDOR_ID_IOTECH)
return NULL;
for (i = 0; i < ARRAY_SIZE(boardtypes); i++) {
board = &boardtypes[i];
if (pcidev->subsystem_device == board->id)
return board;
}
return NULL;
}
static int daqboard2000_auto_attach(struct comedi_device *dev,
unsigned long context_unused)
{
struct pci_dev *pcidev = comedi_to_pci_dev(dev);
const struct daq200_boardtype *board;
struct daqboard2000_private *devpriv;
struct comedi_subdevice *s;
int result;
board = daqboard2000_find_boardinfo(dev, pcidev);
if (!board)
return -ENODEV;
dev->board_ptr = board;
dev->board_name = board->name;
devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
if (!devpriv)
return -ENOMEM;
result = comedi_pci_enable(dev);
if (result)
return result;
devpriv->plx = pci_ioremap_bar(pcidev, 0);
dev->mmio = pci_ioremap_bar(pcidev, 2);
if (!devpriv->plx || !dev->mmio)
return -ENOMEM;
result = comedi_alloc_subdevices(dev, 3);
if (result)
return result;
readl(devpriv->plx + 0x6c);
result = comedi_load_firmware(dev, &comedi_to_pci_dev(dev)->dev,
DAQBOARD2000_FIRMWARE,
initialize_daqboard2000, 0);
if (result < 0)
return result;
daqboard2000_initializeAdc(dev);
daqboard2000_initializeDac(dev);
s = &dev->subdevices[0];
/* ai subdevice */
s->type = COMEDI_SUBD_AI;
s->subdev_flags = SDF_READABLE | SDF_GROUND;
s->n_chan = 24;
s->maxdata = 0xffff;
s->insn_read = daqboard2000_ai_insn_read;
s->range_table = &range_daqboard2000_ai;
s = &dev->subdevices[1];
/* ao subdevice */
s->type = COMEDI_SUBD_AO;
s->subdev_flags = SDF_WRITABLE;
s->n_chan = 2;
s->maxdata = 0xffff;
s->insn_write = daqboard2000_ao_insn_write;
s->range_table = &range_bipolar10;
result = comedi_alloc_subdev_readback(s);
if (result)
return result;
s = &dev->subdevices[2];
return subdev_8255_init(dev, s, daqboard2000_8255_cb,
dioP2ExpansionIO8Bit);
}
static void daqboard2000_detach(struct comedi_device *dev)
{
struct daqboard2000_private *devpriv = dev->private;
if (devpriv && devpriv->plx)
iounmap(devpriv->plx);
comedi_pci_detach(dev);
}
static struct comedi_driver daqboard2000_driver = {
.driver_name = "daqboard2000",
.module = THIS_MODULE,
.auto_attach = daqboard2000_auto_attach,
.detach = daqboard2000_detach,
};
static int daqboard2000_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
return comedi_pci_auto_config(dev, &daqboard2000_driver,
id->driver_data);
}
static const struct pci_device_id daqboard2000_pci_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_IOTECH, 0x0409) },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, daqboard2000_pci_table);
static struct pci_driver daqboard2000_pci_driver = {
.name = "daqboard2000",
.id_table = daqboard2000_pci_table,
.probe = daqboard2000_pci_probe,
.remove = comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(daqboard2000_driver, daqboard2000_pci_driver);
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(DAQBOARD2000_FIRMWARE);
