/* * comedi/drivers/cb_pcimdas.c * Comedi driver for Computer Boards PCIM-DAS1602/16 and PCIe-DAS1602/16 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef * * 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: cb_pcimdas * Description: Measurement Computing PCI Migration series boards * Devices: [ComputerBoards] PCIM-DAS1602/16 (cb_pcimdas), PCIe-DAS1602/16 * Author: Richard Bytheway * Updated: Mon, 13 Oct 2014 11:57:39 +0000 * Status: experimental * * Written to support the PCIM-DAS1602/16 and PCIe-DAS1602/16. * * Configuration Options: * none * * Manual configuration of PCI(e) cards is not supported; they are configured * automatically. * * Developed from cb_pcidas and skel by Richard Bytheway (mocelet@sucs.org). * Only supports DIO, AO and simple AI in it's present form. * No interrupts, multi channel or FIFO AI, * although the card looks like it could support this. * * http://www.mccdaq.com/PDFs/Manuals/pcim-das1602-16.pdf * http://www.mccdaq.com/PDFs/Manuals/pcie-das1602-16.pdf */ #include #include #include #include "../comedidev.h" #include "plx9052.h" #include "8255.h" /* Registers for the PCIM-DAS1602/16 and PCIe-DAS1602/16 */ /* DAC Offsets */ #define ADC_TRIG 0 #define DAC0_OFFSET 2 #define DAC1_OFFSET 4 /* AI and Counter Constants */ #define MUX_LIMITS 0 #define MAIN_CONN_DIO 1 #define ADC_STAT 2 #define ADC_CONV_STAT 3 #define ADC_INT 4 #define ADC_PACER 5 #define BURST_MODE 6 #define PROG_GAIN 7 #define CLK8254_1_DATA 8 #define CLK8254_2_DATA 9 #define CLK8254_3_DATA 10 #define CLK8254_CONTROL 11 #define USER_COUNTER 12 #define RESID_COUNT_H 13 #define RESID_COUNT_L 14 /* * this structure is for data unique to this hardware driver. If * several hardware drivers keep similar information in this structure, * feel free to suggest moving the variable to the struct comedi_device * struct. */ struct cb_pcimdas_private { /* base addresses */ unsigned long daqio; unsigned long BADR3; }; static int cb_pcimdas_ai_eoc(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned long context) { struct cb_pcimdas_private *devpriv = dev->private; unsigned int status; status = inb(devpriv->BADR3 + 2); if ((status & 0x80) == 0) return 0; return -EBUSY; } static int cb_pcimdas_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { struct cb_pcimdas_private *devpriv = dev->private; int n; unsigned int d; int chan = CR_CHAN(insn->chanspec); unsigned short chanlims; int maxchans; int ret; /* only support sw initiated reads from a single channel */ /* check channel number */ if ((inb(devpriv->BADR3 + 2) & 0x20) == 0) /* differential mode */ maxchans = s->n_chan / 2; else maxchans = s->n_chan; if (chan > (maxchans - 1)) return -ETIMEDOUT; /* *** Wrong error code. Fixme. */ /* configure for sw initiated read */ d = inb(devpriv->BADR3 + 5); if ((d & 0x03) > 0) { /* only reset if needed. */ d = d & 0xfd; outb(d, devpriv->BADR3 + 5); } /* set bursting off, conversions on */ outb(0x01, devpriv->BADR3 + 6); /* set range to 10V. UP/BP is controlled by a switch on the board */ outb(0x00, devpriv->BADR3 + 7); /* * write channel limits to multiplexer, set Low (bits 0-3) and * High (bits 4-7) channels to chan. */ chanlims = chan | (chan << 4); outb(chanlims, devpriv->BADR3 + 0); /* convert n samples */ for (n = 0; n < insn->n; n++) { /* trigger conversion */ outw(0, devpriv->daqio + 0); /* wait for conversion to end */ ret = comedi_timeout(dev, s, insn, cb_pcimdas_ai_eoc, 0); if (ret) return ret; /* read data */ data[n] = inw(devpriv->daqio + 0); } /* return the number of samples read/written */ return n; } static int cb_pcimdas_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { struct cb_pcimdas_private *devpriv = dev->private; unsigned int chan = CR_CHAN(insn->chanspec); unsigned int val = s->readback[chan]; unsigned int reg = (chan) ? DAC1_OFFSET : DAC0_OFFSET; int i; for (i = 0; i < insn->n; i++) { val = data[i]; outw(val, devpriv->daqio + reg); } s->readback[chan] = val; return insn->n; } static int cb_pcimdas_auto_attach(struct comedi_device *dev, unsigned long context_unused) { struct pci_dev *pcidev = comedi_to_pci_dev(dev); struct cb_pcimdas_private *devpriv; struct comedi_subdevice *s; int ret; devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv)); if (!devpriv) return -ENOMEM; ret = comedi_pci_enable(dev); if (ret) return ret; devpriv->daqio = pci_resource_start(pcidev, 2); devpriv->BADR3 = pci_resource_start(pcidev, 3); dev->iobase = pci_resource_start(pcidev, 4); ret = comedi_alloc_subdevices(dev, 3); if (ret) return ret; s = &dev->subdevices[0]; /* dev->read_subdev=s; */ /* analog input subdevice */ s->type = COMEDI_SUBD_AI; s->subdev_flags = SDF_READABLE | SDF_GROUND; s->n_chan = 16; s->maxdata = 0xffff; s->range_table = &range_unknown; s->len_chanlist = 1; /* This is the maximum chanlist length that */ /* the board can handle */ s->insn_read = cb_pcimdas_ai_rinsn; s = &dev->subdevices[1]; /* analog output subdevice */ s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE; s->n_chan = 2; s->maxdata = 0xfff; /* ranges are hardware settable, but not software readable. */ s->range_table = &range_unknown; s->insn_write = cb_pcimdas_ao_insn_write; ret = comedi_alloc_subdev_readback(s); if (ret) return ret; s = &dev->subdevices[2]; /* digital i/o subdevice */ ret = subdev_8255_init(dev, s, NULL, 0x00); if (ret) return ret; return 0; } static struct comedi_driver cb_pcimdas_driver = { .driver_name = "cb_pcimdas", .module = THIS_MODULE, .auto_attach = cb_pcimdas_auto_attach, .detach = comedi_pci_detach, }; static int cb_pcimdas_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { return comedi_pci_auto_config(dev, &cb_pcimdas_driver, id->driver_data); } static const struct pci_device_id cb_pcimdas_pci_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0056) }, /* PCIM-DAS1602/16 */ { PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0115) }, /* PCIe-DAS1602/16 */ { 0 } }; MODULE_DEVICE_TABLE(pci, cb_pcimdas_pci_table); static struct pci_driver cb_pcimdas_pci_driver = { .name = "cb_pcimdas", .id_table = cb_pcimdas_pci_table, .probe = cb_pcimdas_pci_probe, .remove = comedi_pci_auto_unconfig, }; module_comedi_pci_driver(cb_pcimdas_driver, cb_pcimdas_pci_driver); MODULE_AUTHOR("Comedi http://www.comedi.org"); MODULE_DESCRIPTION("Comedi driver for PCIM-DAS1602/16 and PCIe-DAS1602/16"); MODULE_LICENSE("GPL");