| /* |
| * 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 fimware, 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_vendor != 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); |