--- /dev/null
+/*
+ comedi/drivers/ni_670x.c
+ Hardware driver for NI 670x devices
+
+ COMEDI - Linux Control and Measurement Device Interface
+ Copyright (C) 1997-2001 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: ni_670x
+Description: National Instruments 670x
+Author: Bart Joris <bjoris@advalvas.be>
+Updated: Wed, 11 Dec 2002 18:25:35 -0800
+Devices: [National Instruments] PCI-6703 (ni_670x), PCI-6704
+Status: unknown
+
+Commands are not supported.
+*/
+
+/*
+ Bart Joris <bjoris@advalvas.be> Last updated on 20/08/2001
+
+ Manuals:
+
+ 322110a.pdf PCI/PXI-6704 User Manual
+ 322110b.pdf PCI/PXI-6703/6704 User Manual
+
+*/
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+
+#include "../comedi_pci.h"
+
+#define AO_VALUE_OFFSET 0x00
+#define AO_CHAN_OFFSET 0x0c
+#define AO_STATUS_OFFSET 0x10
+#define AO_CONTROL_OFFSET 0x10
+#define DIO_PORT0_DIR_OFFSET 0x20
+#define DIO_PORT0_DATA_OFFSET 0x24
+#define DIO_PORT1_DIR_OFFSET 0x28
+#define DIO_PORT1_DATA_OFFSET 0x2c
+#define MISC_STATUS_OFFSET 0x14
+#define MISC_CONTROL_OFFSET 0x14
+
+enum ni_670x_boardid {
+ BOARD_PCI6703,
+ BOARD_PXI6704,
+ BOARD_PCI6704,
+};
+
+struct ni_670x_board {
+ const char *name;
+ unsigned short ao_chans;
+};
+
+static const struct ni_670x_board ni_670x_boards[] = {
+ [BOARD_PCI6703] = {
+ .name = "PCI-6703",
+ .ao_chans = 16,
+ },
+ [BOARD_PXI6704] = {
+ .name = "PXI-6704",
+ .ao_chans = 32,
+ },
+ [BOARD_PCI6704] = {
+ .name = "PCI-6704",
+ .ao_chans = 32,
+ },
+};
+
+struct ni_670x_private {
+ int boardtype;
+ int dio;
+};
+
+static int ni_670x_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 i;
+
+ /*
+ * Channel number mapping:
+ *
+ * NI 6703/ NI 6704 | NI 6704 Only
+ * -------------------------------
+ * vch(0) : 0 | ich(16) : 1
+ * vch(1) : 2 | ich(17) : 3
+ * ... | ...
+ * vch(15) : 30 | ich(31) : 31
+ */
+ for (i = 0; i < insn->n; i++) {
+ val = data[i];
+ /* First write in channel register which channel to use */
+ writel(((chan & 15) << 1) | ((chan & 16) >> 4),
+ dev->mmio + AO_CHAN_OFFSET);
+ /* write channel value */
+ writel(val, dev->mmio + AO_VALUE_OFFSET);
+ }
+ s->readback[chan] = val;
+
+ return insn->n;
+}
+
+static int ni_670x_dio_insn_bits(struct comedi_device *dev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn,
+ unsigned int *data)
+{
+ if (comedi_dio_update_state(s, data))
+ writel(s->state, dev->mmio + DIO_PORT0_DATA_OFFSET);
+
+ data[1] = readl(dev->mmio + DIO_PORT0_DATA_OFFSET);
+
+ return insn->n;
+}
+
+static int ni_670x_dio_insn_config(struct comedi_device *dev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn,
+ unsigned int *data)
+{
+ int ret;
+
+ ret = comedi_dio_insn_config(dev, s, insn, data, 0);
+ if (ret)
+ return ret;
+
+ writel(s->io_bits, dev->mmio + DIO_PORT0_DIR_OFFSET);
+
+ return insn->n;
+}
+
+/* ripped from mite.h and mite_setup2() to avoid mite dependency */
+#define MITE_IODWBSR 0xc0 /* IO Device Window Base Size Register */
+#define WENAB (1 << 7) /* window enable */
+
+static int ni_670x_mite_init(struct pci_dev *pcidev)
+{
+ void __iomem *mite_base;
+ u32 main_phys_addr;
+
+ /* ioremap the MITE registers (BAR 0) temporarily */
+ mite_base = pci_ioremap_bar(pcidev, 0);
+ if (!mite_base)
+ return -ENOMEM;
+
+ /* set data window to main registers (BAR 1) */
+ main_phys_addr = pci_resource_start(pcidev, 1);
+ writel(main_phys_addr | WENAB, mite_base + MITE_IODWBSR);
+
+ /* finished with MITE registers */
+ iounmap(mite_base);
+ return 0;
+}
+
+static int ni_670x_auto_attach(struct comedi_device *dev,
+ unsigned long context)
+{
+ struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+ const struct ni_670x_board *thisboard = NULL;
+ struct ni_670x_private *devpriv;
+ struct comedi_subdevice *s;
+ int ret;
+ int i;
+
+ if (context < ARRAY_SIZE(ni_670x_boards))
+ thisboard = &ni_670x_boards[context];
+ if (!thisboard)
+ return -ENODEV;
+ dev->board_ptr = thisboard;
+ dev->board_name = thisboard->name;
+
+ ret = comedi_pci_enable(dev);
+ if (ret)
+ return ret;
+
+ devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
+ if (!devpriv)
+ return -ENOMEM;
+
+ ret = ni_670x_mite_init(pcidev);
+ if (ret)
+ return ret;
+
+ dev->mmio = pci_ioremap_bar(pcidev, 1);
+ if (!dev->mmio)
+ return -ENOMEM;
+
+ ret = comedi_alloc_subdevices(dev, 2);
+ if (ret)
+ return ret;
+
+ s = &dev->subdevices[0];
+ /* analog output subdevice */
+ s->type = COMEDI_SUBD_AO;
+ s->subdev_flags = SDF_WRITABLE;
+ s->n_chan = thisboard->ao_chans;
+ s->maxdata = 0xffff;
+ if (s->n_chan == 32) {
+ const struct comedi_lrange **range_table_list;
+
+ range_table_list = kmalloc(sizeof(struct comedi_lrange *) * 32,
+ GFP_KERNEL);
+ if (!range_table_list)
+ return -ENOMEM;
+ s->range_table_list = range_table_list;
+ for (i = 0; i < 16; i++) {
+ range_table_list[i] = &range_bipolar10;
+ range_table_list[16 + i] = &range_0_20mA;
+ }
+ } else {
+ s->range_table = &range_bipolar10;
+ }
+ s->insn_write = ni_670x_ao_insn_write;
+
+ ret = comedi_alloc_subdev_readback(s);
+ if (ret)
+ return ret;
+
+ s = &dev->subdevices[1];
+ /* digital i/o subdevice */
+ s->type = COMEDI_SUBD_DIO;
+ s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+ s->n_chan = 8;
+ s->maxdata = 1;
+ s->range_table = &range_digital;
+ s->insn_bits = ni_670x_dio_insn_bits;
+ s->insn_config = ni_670x_dio_insn_config;
+
+ /* Config of misc registers */
+ writel(0x10, dev->mmio + MISC_CONTROL_OFFSET);
+ /* Config of ao registers */
+ writel(0x00, dev->mmio + AO_CONTROL_OFFSET);
+
+ return 0;
+}
+
+static void ni_670x_detach(struct comedi_device *dev)
+{
+ struct comedi_subdevice *s;
+
+ comedi_pci_detach(dev);
+ if (dev->n_subdevices) {
+ s = &dev->subdevices[0];
+ if (s)
+ kfree(s->range_table_list);
+ }
+}
+
+static struct comedi_driver ni_670x_driver = {
+ .driver_name = "ni_670x",
+ .module = THIS_MODULE,
+ .auto_attach = ni_670x_auto_attach,
+ .detach = ni_670x_detach,
+};
+
+static int ni_670x_pci_probe(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ return comedi_pci_auto_config(dev, &ni_670x_driver, id->driver_data);
+}
+
+static const struct pci_device_id ni_670x_pci_table[] = {
+ { PCI_VDEVICE(NI, 0x1290), BOARD_PCI6704 },
+ { PCI_VDEVICE(NI, 0x1920), BOARD_PXI6704 },
+ { PCI_VDEVICE(NI, 0x2c90), BOARD_PCI6703 },
+ { 0 }
+};
+MODULE_DEVICE_TABLE(pci, ni_670x_pci_table);
+
+static struct pci_driver ni_670x_pci_driver = {
+ .name = "ni_670x",
+ .id_table = ni_670x_pci_table,
+ .probe = ni_670x_pci_probe,
+ .remove = comedi_pci_auto_unconfig,
+};
+module_comedi_pci_driver(ni_670x_driver, ni_670x_pci_driver);
+
+MODULE_AUTHOR("Comedi http://www.comedi.org");
+MODULE_DESCRIPTION("Comedi low-level driver");
+MODULE_LICENSE("GPL");
Code Review / kvmfornfv.git / blobdiff