// SPDX-License-Identifier: GPL-2.0+
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/*
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* adl_pci6208.c
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* Comedi driver for ADLink 6208 series cards
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*
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* COMEDI - Linux Control and Measurement Device Interface
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* Copyright (C) 2000 David A. Schleef <ds@schleef.org>
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*/
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/*
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* Driver: adl_pci6208
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* Description: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards
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* Devices: [ADLink] PCI-6208 (adl_pci6208), PCI-6216
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* Author: nsyeow <nsyeow@pd.jaring.my>
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* Updated: Wed, 11 Feb 2015 11:37:18 +0000
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* Status: untested
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*
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* Configuration Options: not applicable, uses PCI auto config
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*
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* All supported devices share the same PCI device ID and are treated as a
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* PCI-6216 with 16 analog output channels. On a PCI-6208, the upper 8
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* channels exist in registers, but don't go to DAC chips.
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*/
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#include <linux/module.h>
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#include <linux/delay.h>
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#include "../comedi_pci.h"
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/*
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* PCI-6208/6216-GL register map
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*/
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#define PCI6208_AO_CONTROL(x) (0x00 + (2 * (x)))
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#define PCI6208_AO_STATUS 0x00
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#define PCI6208_AO_STATUS_DATA_SEND BIT(0)
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#define PCI6208_DIO 0x40
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#define PCI6208_DIO_DO_MASK (0x0f)
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#define PCI6208_DIO_DO_SHIFT (0)
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#define PCI6208_DIO_DI_MASK (0xf0)
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#define PCI6208_DIO_DI_SHIFT (4)
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static int pci6208_ao_eoc(struct comedi_device *dev,
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struct comedi_subdevice *s,
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struct comedi_insn *insn,
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unsigned long context)
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{
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unsigned int status;
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status = inw(dev->iobase + PCI6208_AO_STATUS);
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if ((status & PCI6208_AO_STATUS_DATA_SEND) == 0)
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return 0;
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return -EBUSY;
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}
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static int pci6208_ao_insn_write(struct comedi_device *dev,
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struct comedi_subdevice *s,
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struct comedi_insn *insn,
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unsigned int *data)
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{
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unsigned int chan = CR_CHAN(insn->chanspec);
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int ret;
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int i;
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for (i = 0; i < insn->n; i++) {
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unsigned int val = data[i];
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/* D/A transfer rate is 2.2us */
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ret = comedi_timeout(dev, s, insn, pci6208_ao_eoc, 0);
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if (ret)
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return ret;
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/* the hardware expects two's complement values */
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outw(comedi_offset_munge(s, val),
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dev->iobase + PCI6208_AO_CONTROL(chan));
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s->readback[chan] = val;
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}
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return insn->n;
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}
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static int pci6208_di_insn_bits(struct comedi_device *dev,
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struct comedi_subdevice *s,
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struct comedi_insn *insn,
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unsigned int *data)
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{
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unsigned int val;
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val = inw(dev->iobase + PCI6208_DIO);
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val = (val & PCI6208_DIO_DI_MASK) >> PCI6208_DIO_DI_SHIFT;
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data[1] = val;
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return insn->n;
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}
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static int pci6208_do_insn_bits(struct comedi_device *dev,
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struct comedi_subdevice *s,
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struct comedi_insn *insn,
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unsigned int *data)
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{
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if (comedi_dio_update_state(s, data))
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outw(s->state, dev->iobase + PCI6208_DIO);
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data[1] = s->state;
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return insn->n;
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}
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static int pci6208_auto_attach(struct comedi_device *dev,
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unsigned long context_unused)
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{
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struct pci_dev *pcidev = comedi_to_pci_dev(dev);
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struct comedi_subdevice *s;
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unsigned int val;
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int ret;
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ret = comedi_pci_enable(dev);
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if (ret)
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return ret;
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dev->iobase = pci_resource_start(pcidev, 2);
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ret = comedi_alloc_subdevices(dev, 3);
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if (ret)
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return ret;
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s = &dev->subdevices[0];
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/* analog output subdevice */
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s->type = COMEDI_SUBD_AO;
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s->subdev_flags = SDF_WRITABLE;
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s->n_chan = 16; /* Only 8 usable on PCI-6208 */
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s->maxdata = 0xffff;
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s->range_table = &range_bipolar10;
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s->insn_write = pci6208_ao_insn_write;
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ret = comedi_alloc_subdev_readback(s);
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if (ret)
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return ret;
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s = &dev->subdevices[1];
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/* digital input subdevice */
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s->type = COMEDI_SUBD_DI;
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s->subdev_flags = SDF_READABLE;
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s->n_chan = 4;
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s->maxdata = 1;
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s->range_table = &range_digital;
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s->insn_bits = pci6208_di_insn_bits;
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s = &dev->subdevices[2];
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/* digital output subdevice */
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s->type = COMEDI_SUBD_DO;
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s->subdev_flags = SDF_WRITABLE;
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s->n_chan = 4;
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s->maxdata = 1;
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s->range_table = &range_digital;
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s->insn_bits = pci6208_do_insn_bits;
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/*
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* Get the read back signals from the digital outputs
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* and save it as the initial state for the subdevice.
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*/
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val = inw(dev->iobase + PCI6208_DIO);
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val = (val & PCI6208_DIO_DO_MASK) >> PCI6208_DIO_DO_SHIFT;
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s->state = val;
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return 0;
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}
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static struct comedi_driver adl_pci6208_driver = {
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.driver_name = "adl_pci6208",
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.module = THIS_MODULE,
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.auto_attach = pci6208_auto_attach,
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.detach = comedi_pci_detach,
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};
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static int adl_pci6208_pci_probe(struct pci_dev *dev,
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const struct pci_device_id *id)
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{
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return comedi_pci_auto_config(dev, &adl_pci6208_driver,
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id->driver_data);
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}
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static const struct pci_device_id adl_pci6208_pci_table[] = {
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{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x6208) },
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{ PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
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0x9999, 0x6208) },
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{ 0 }
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};
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MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table);
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static struct pci_driver adl_pci6208_pci_driver = {
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.name = "adl_pci6208",
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.id_table = adl_pci6208_pci_table,
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.probe = adl_pci6208_pci_probe,
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.remove = comedi_pci_auto_unconfig,
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};
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module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver);
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MODULE_AUTHOR("Comedi http://www.comedi.org");
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MODULE_DESCRIPTION("Comedi driver for ADLink 6208 series cards");
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MODULE_LICENSE("GPL");
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