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Diffstat (limited to 'drivers/staging/comedi/drivers/ni_670x.c')
-rw-r--r--drivers/staging/comedi/drivers/ni_670x.c337
1 files changed, 337 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c
new file mode 100644
index 000000000000..d1312e073a65
--- /dev/null
+++ b/drivers/staging/comedi/drivers/ni_670x.c
@@ -0,0 +1,337 @@
+/*
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+/*
+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 "../comedidev.h"
+
+#include "mite.h"
+
+#define PCI_VENDOR_ID_NATINST 0x1093
+
+#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
+
+/* Board description*/
+
+struct ni_670x_board {
+ unsigned short dev_id;
+ const char *name;
+ unsigned short ao_chans;
+ unsigned short ao_bits;
+};
+
+static const struct ni_670x_board ni_670x_boards[] = {
+ {
+ dev_id: 0x2c90,
+ name: "PCI-6703",
+ ao_chans:16,
+ ao_bits: 16,
+ },
+ {
+ dev_id: 0x1920,
+ name: "PXI-6704",
+ ao_chans:32,
+ ao_bits: 16,
+ },
+ {
+ dev_id: 0x1290,
+ name: "PCI-6704",
+ ao_chans:32,
+ ao_bits: 16,
+ },
+};
+
+static DEFINE_PCI_DEVICE_TABLE(ni_670x_pci_table) = {
+ {PCI_VENDOR_ID_NATINST, 0x2c90, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ {PCI_VENDOR_ID_NATINST, 0x1920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ //{ PCI_VENDOR_ID_NATINST, 0x0000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ {0}
+};
+
+MODULE_DEVICE_TABLE(pci, ni_670x_pci_table);
+
+#define thisboard ((struct ni_670x_board *)dev->board_ptr)
+
+struct ni_670x_private {
+
+ struct mite_struct *mite;
+ int boardtype;
+ int dio;
+ unsigned int ao_readback[32];
+};
+
+
+#define devpriv ((struct ni_670x_private *)dev->private)
+#define n_ni_670x_boards (sizeof(ni_670x_boards)/sizeof(ni_670x_boards[0]))
+
+static int ni_670x_attach(struct comedi_device * dev, struct comedi_devconfig * it);
+static int ni_670x_detach(struct comedi_device * dev);
+
+static struct comedi_driver driver_ni_670x = {
+ driver_name:"ni_670x",
+ module:THIS_MODULE,
+ attach:ni_670x_attach,
+ detach:ni_670x_detach,
+};
+
+COMEDI_PCI_INITCLEANUP(driver_ni_670x, ni_670x_pci_table);
+
+static struct comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };
+
+static int ni_670x_find_device(struct comedi_device * dev, int bus, int slot);
+
+static int ni_670x_ao_winsn(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data);
+static int ni_670x_ao_rinsn(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data);
+static int ni_670x_dio_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data);
+static int ni_670x_dio_insn_config(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data);
+
+static int ni_670x_attach(struct comedi_device * dev, struct comedi_devconfig * it)
+{
+ struct comedi_subdevice *s;
+ int ret;
+ int i;
+
+ printk("comedi%d: ni_670x: ", dev->minor);
+
+ if ((ret = alloc_private(dev, sizeof(struct ni_670x_private))) < 0)
+ return ret;
+
+ ret = ni_670x_find_device(dev, it->options[0], it->options[1]);
+ if (ret < 0)
+ return ret;
+
+ ret = mite_setup(devpriv->mite);
+ if (ret < 0) {
+ printk("error setting up mite\n");
+ return ret;
+ }
+ dev->board_name = thisboard->name;
+ dev->irq = mite_irq(devpriv->mite);
+ printk(" %s", dev->board_name);
+
+ if (alloc_subdevices(dev, 2) < 0)
+ return -ENOMEM;
+
+ 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_winsn;
+ s->insn_read = &ni_670x_ao_rinsn;
+
+ 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;
+
+ writel(0x10, devpriv->mite->daq_io_addr + MISC_CONTROL_OFFSET); /* Config of misc registers */
+ writel(0x00, devpriv->mite->daq_io_addr + AO_CONTROL_OFFSET); /* Config of ao registers */
+
+ printk("attached\n");
+
+ return 1;
+}
+
+static int ni_670x_detach(struct comedi_device * dev)
+{
+ printk("comedi%d: ni_670x: remove\n", dev->minor);
+
+ if (dev->subdevices[0].range_table_list) {
+ kfree(dev->subdevices[0].range_table_list);
+ }
+ if (dev->private && devpriv->mite)
+ mite_unsetup(devpriv->mite);
+
+ if (dev->irq)
+ comedi_free_irq(dev->irq, dev);
+
+ return 0;
+}
+
+static int ni_670x_ao_winsn(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data)
+{
+ int i;
+ int chan = CR_CHAN(insn->chanspec);
+
+ /* 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++) {
+ writel(((chan & 15) << 1) | ((chan & 16) >> 4), devpriv->mite->daq_io_addr + AO_CHAN_OFFSET); /* First write in channel register which channel to use */
+ writel(data[i], devpriv->mite->daq_io_addr + AO_VALUE_OFFSET); /* write channel value */
+ devpriv->ao_readback[chan] = data[i];
+ }
+
+ return i;
+}
+
+static int ni_670x_ao_rinsn(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data)
+{
+ int i;
+ int chan = CR_CHAN(insn->chanspec);
+
+ for (i = 0; i < insn->n; i++)
+ data[i] = devpriv->ao_readback[chan];
+
+ return i;
+}
+
+static int ni_670x_dio_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data)
+{
+ if (insn->n != 2)
+ return -EINVAL;
+
+ /* The insn data is a mask in data[0] and the new data
+ * in data[1], each channel cooresponding to a bit. */
+ if (data[0]) {
+ s->state &= ~data[0];
+ s->state |= data[0] & data[1];
+ writel(s->state,
+ devpriv->mite->daq_io_addr + DIO_PORT0_DATA_OFFSET);
+ }
+
+ /* on return, data[1] contains the value of the digital
+ * input lines. */
+ data[1] = readl(devpriv->mite->daq_io_addr + DIO_PORT0_DATA_OFFSET);
+
+ return 2;
+}
+
+static int ni_670x_dio_insn_config(struct comedi_device * dev, struct comedi_subdevice * s,
+ struct comedi_insn * insn, unsigned int * data)
+{
+ int chan = CR_CHAN(insn->chanspec);
+
+ switch (data[0]) {
+ case INSN_CONFIG_DIO_OUTPUT:
+ s->io_bits |= 1 << chan;
+ break;
+ case INSN_CONFIG_DIO_INPUT:
+ s->io_bits &= ~(1 << chan);
+ break;
+ case INSN_CONFIG_DIO_QUERY:
+ data[1] =
+ (s->
+ io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT;
+ return insn->n;
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
+ writel(s->io_bits, devpriv->mite->daq_io_addr + DIO_PORT0_DIR_OFFSET);
+
+ return insn->n;
+}
+
+static int ni_670x_find_device(struct comedi_device * dev, int bus, int slot)
+{
+ struct mite_struct *mite;
+ int i;
+
+ for (mite = mite_devices; mite; mite = mite->next) {
+ if (mite->used)
+ continue;
+ if (bus || slot) {
+ if (bus != mite->pcidev->bus->number
+ || slot != PCI_SLOT(mite->pcidev->devfn))
+ continue;
+ }
+
+ for (i = 0; i < n_ni_670x_boards; i++) {
+ if (mite_device_id(mite) == ni_670x_boards[i].dev_id) {
+ dev->board_ptr = ni_670x_boards + i;
+ devpriv->mite = mite;
+
+ return 0;
+ }
+ }
+ }
+ printk("no device found\n");
+ mite_list_devices();
+ return -EIO;
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.