--- /dev/null
+/*
+ * adl_pci6208.c
+ * Comedi driver for ADLink 6208 series cards
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000 David A. Schleef <ds@schleef.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.
+ */
+
+/*
+ * Driver: adl_pci6208
+ * Description: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards
+ * Devices: [ADLink] PCI-6208 (adl_pci6208), PCI-6216
+ * Author: nsyeow <nsyeow@pd.jaring.my>
+ * Updated: Wed, 11 Feb 2015 11:37:18 +0000
+ * Status: untested
+ *
+ * Configuration Options: not applicable, uses PCI auto config
+ *
+ * All supported devices share the same PCI device ID and are treated as a
+ * PCI-6216 with 16 analog output channels. On a PCI-6208, the upper 8
+ * channels exist in registers, but don't go to DAC chips.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+
+#include "../comedi_pci.h"
+
+/*
+ * PCI-6208/6216-GL register map
+ */
+#define PCI6208_AO_CONTROL(x) (0x00 + (2 * (x)))
+#define PCI6208_AO_STATUS 0x00
+#define PCI6208_AO_STATUS_DATA_SEND (1 << 0)
+#define PCI6208_DIO 0x40
+#define PCI6208_DIO_DO_MASK (0x0f)
+#define PCI6208_DIO_DO_SHIFT (0)
+#define PCI6208_DIO_DI_MASK (0xf0)
+#define PCI6208_DIO_DI_SHIFT (4)
+
+static int pci6208_ao_eoc(struct comedi_device *dev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn,
+ unsigned long context)
+{
+ unsigned int status;
+
+ status = inw(dev->iobase + PCI6208_AO_STATUS);
+ if ((status & PCI6208_AO_STATUS_DATA_SEND) == 0)
+ return 0;
+ return -EBUSY;
+}
+
+static int pci6208_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);
+ unsigned int val = s->readback[chan];
+ int ret;
+ int i;
+
+ for (i = 0; i < insn->n; i++) {
+ val = data[i];
+
+ /* D/A transfer rate is 2.2us */
+ ret = comedi_timeout(dev, s, insn, pci6208_ao_eoc, 0);
+ if (ret)
+ return ret;
+
+ /* the hardware expects two's complement values */
+ outw(comedi_offset_munge(s, val),
+ dev->iobase + PCI6208_AO_CONTROL(chan));
+
+ s->readback[chan] = val;
+ }
+
+ return insn->n;
+}
+
+static int pci6208_di_insn_bits(struct comedi_device *dev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn,
+ unsigned int *data)
+{
+ unsigned int val;
+
+ val = inw(dev->iobase + PCI6208_DIO);
+ val = (val & PCI6208_DIO_DI_MASK) >> PCI6208_DIO_DI_SHIFT;
+
+ data[1] = val;
+
+ return insn->n;
+}
+
+static int pci6208_do_insn_bits(struct comedi_device *dev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn,
+ unsigned int *data)
+{
+ if (comedi_dio_update_state(s, data))
+ outw(s->state, dev->iobase + PCI6208_DIO);
+
+ data[1] = s->state;
+
+ return insn->n;
+}
+
+static int pci6208_auto_attach(struct comedi_device *dev,
+ unsigned long context_unused)
+{
+ struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+ struct comedi_subdevice *s;
+ unsigned int val;
+ int ret;
+
+ ret = comedi_pci_enable(dev);
+ if (ret)
+ return ret;
+ dev->iobase = pci_resource_start(pcidev, 2);
+
+ ret = comedi_alloc_subdevices(dev, 3);
+ if (ret)
+ return ret;
+
+ s = &dev->subdevices[0];
+ /* analog output subdevice */
+ s->type = COMEDI_SUBD_AO;
+ s->subdev_flags = SDF_WRITABLE;
+ s->n_chan = 16; /* Only 8 usable on PCI-6208 */
+ s->maxdata = 0xffff;
+ s->range_table = &range_bipolar10;
+ s->insn_write = pci6208_ao_insn_write;
+
+ ret = comedi_alloc_subdev_readback(s);
+ if (ret)
+ return ret;
+
+ s = &dev->subdevices[1];
+ /* digital input subdevice */
+ s->type = COMEDI_SUBD_DI;
+ s->subdev_flags = SDF_READABLE;
+ s->n_chan = 4;
+ s->maxdata = 1;
+ s->range_table = &range_digital;
+ s->insn_bits = pci6208_di_insn_bits;
+
+ s = &dev->subdevices[2];
+ /* digital output subdevice */
+ s->type = COMEDI_SUBD_DO;
+ s->subdev_flags = SDF_WRITABLE;
+ s->n_chan = 4;
+ s->maxdata = 1;
+ s->range_table = &range_digital;
+ s->insn_bits = pci6208_do_insn_bits;
+
+ /*
+ * Get the read back signals from the digital outputs
+ * and save it as the initial state for the subdevice.
+ */
+ val = inw(dev->iobase + PCI6208_DIO);
+ val = (val & PCI6208_DIO_DO_MASK) >> PCI6208_DIO_DO_SHIFT;
+ s->state = val;
+
+ return 0;
+}
+
+static struct comedi_driver adl_pci6208_driver = {
+ .driver_name = "adl_pci6208",
+ .module = THIS_MODULE,
+ .auto_attach = pci6208_auto_attach,
+ .detach = comedi_pci_detach,
+};
+
+static int adl_pci6208_pci_probe(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ return comedi_pci_auto_config(dev, &adl_pci6208_driver,
+ id->driver_data);
+}
+
+static const struct pci_device_id adl_pci6208_pci_table[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x6208) },
+ { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+ 0x9999, 0x6208) },
+ { 0 }
+};
+MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table);
+
+static struct pci_driver adl_pci6208_pci_driver = {
+ .name = "adl_pci6208",
+ .id_table = adl_pci6208_pci_table,
+ .probe = adl_pci6208_pci_probe,
+ .remove = comedi_pci_auto_unconfig,
+};
+module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver);
+
+MODULE_AUTHOR("Comedi http://www.comedi.org");
+MODULE_DESCRIPTION("Comedi driver for ADLink 6208 series cards");
+MODULE_LICENSE("GPL");
Code Review / kvmfornfv.git / blobdiff