--- /dev/null
+/*******************************************************************************
+ comedi/drivers/pci1723.c
+
+ 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.
+
+ 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: adv_pci1723
+Description: Advantech PCI-1723
+Author: yonggang <rsmgnu@gmail.com>, Ian Abbott <abbotti@mev.co.uk>
+Devices: [Advantech] PCI-1723 (adv_pci1723)
+Updated: Mon, 14 Apr 2008 15:12:56 +0100
+Status: works
+
+Configuration Options:
+ [0] - PCI bus of device (optional)
+ [1] - PCI slot of device (optional)
+
+ If bus/slot is not specified, the first supported
+ PCI device found will be used.
+
+Subdevice 0 is 8-channel AO, 16-bit, range +/- 10 V.
+
+Subdevice 1 is 16-channel DIO. The channels are configurable as input or
+output in 2 groups (0 to 7, 8 to 15). Configuring any channel implicitly
+configures all channels in the same group.
+
+TODO:
+
+1. Add the two milliamp ranges to the AO subdevice (0 to 20 mA, 4 to 20 mA).
+2. Read the initial ranges and values of the AO subdevice at start-up instead
+ of reinitializing them.
+3. Implement calibration.
+*/
+
+#include "../comedidev.h"
+
+#include "comedi_pci.h"
+
+#define ADVANTECH_VENDOR 0x13fe /* Advantech PCI vendor ID */
+
+// hardware types of the cards
+#define TYPE_PCI1723 0
+
+#define IORANGE_1723 0x2A
+
+/* all the registers for the pci1723 board */
+#define PCI1723_DA(N) ((N)<<1) /* W: D/A register N (0 to 7) */
+
+#define PCI1723_SYN_SET 0x12 /*synchronized set register */
+#define PCI1723_ALL_CHNNELE_SYN_STROBE 0x12 /*synchronized status register */
+
+#define PCI1723_RANGE_CALIBRATION_MODE 0x14 /* range and calibration mode */
+#define PCI1723_RANGE_CALIBRATION_STATUS 0x14 /* range and calibration status */
+
+#define PCI1723_CONTROL_CMD_CALIBRATION_FUN 0x16 /* SADC control command for calibration function */
+#define PCI1723_STATUS_CMD_CALIBRATION_FUN 0x16 /* SADC control status for calibration function */
+
+#define PCI1723_CALIBRATION_PARA_STROBE 0x18 /* Calibration parameter strobe */
+
+#define PCI1723_DIGITAL_IO_PORT_SET 0x1A /* Digital I/O port setting */
+#define PCI1723_DIGITAL_IO_PORT_MODE 0x1A /* Digital I/O port mode */
+
+#define PCI1723_WRITE_DIGITAL_OUTPUT_CMD 0x1C /* Write digital output command */
+#define PCI1723_READ_DIGITAL_INPUT_DATA 0x1C /* Read digital input data */
+
+#define PCI1723_WRITE_CAL_CMD 0x1E /* Write calibration command */
+#define PCI1723_READ_CAL_STATUS 0x1E /* Read calibration status */
+
+#define PCI1723_SYN_STROBE 0x20 /* Synchronized strobe */
+
+#define PCI1723_RESET_ALL_CHN_STROBE 0x22 /* Reset all D/A channels strobe */
+
+#define PCI1723_RESET_CAL_CONTROL_STROBE 0x24 /* Reset the calibration controller strobe */
+
+#define PCI1723_CHANGE_CHA_OUTPUT_TYPE_STROBE 0x26 /* Change D/A channels output type strobe */
+
+#define PCI1723_SELECT_CALIBRATION 0x28 /* Select the calibration Ref_V */
+
+//static unsigned short pci_list_builded=0; /*=1 list of card is know */
+
+static const comedi_lrange range_pci1723 = { 1, {
+ BIP_RANGE(10)
+ }
+};
+
+/*
+ * Board descriptions for pci1723 boards.
+ */
+typedef struct pci1723_board_struct {
+ const char *name;
+ int vendor_id; // PCI vendor a device ID of card
+ int device_id;
+ int iorange;
+ char cardtype;
+ int n_aochan; // num of D/A chans
+ int n_diochan; // num of DIO chans
+ int ao_maxdata; // resolution of D/A
+ const comedi_lrange *rangelist_ao; // rangelist for D/A
+} boardtype;
+
+static const boardtype boardtypes[] = {
+ {
+ name: "pci1723",
+ vendor_id:ADVANTECH_VENDOR,
+ device_id:0x1723,
+ iorange: IORANGE_1723,
+ cardtype:TYPE_PCI1723,
+ n_aochan:8,
+ n_diochan:16,
+ ao_maxdata:0xffff,
+ rangelist_ao:&range_pci1723,
+ },
+};
+
+/* This is used by modprobe to translate PCI IDs to drivers. Should
+ * only be used for PCI and ISA-PnP devices */
+static DEFINE_PCI_DEVICE_TABLE(pci1723_pci_table) = {
+ {PCI_VENDOR_ID_ADVANTECH, 0x1723, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ {0}
+};
+
+MODULE_DEVICE_TABLE(pci, pci1723_pci_table);
+
+/*
+ * The comedi_driver structure tells the Comedi core module
+ * which functions to call to configure/deconfigure (attach/detach)
+ * the board, and also about the kernel module that contains
+ * the device code.
+ */
+static int pci1723_attach(comedi_device * dev, comedi_devconfig * it);
+static int pci1723_detach(comedi_device * dev);
+
+#define n_boardtypes (sizeof(boardtypes)/sizeof(boardtype))
+
+static comedi_driver driver_pci1723 = {
+ driver_name:"adv_pci1723",
+ module:THIS_MODULE,
+ attach:pci1723_attach,
+ detach:pci1723_detach,
+};
+
+/* this structure is for data unique to this hardware driver. */
+typedef struct {
+ int valid; //card is usable;
+
+ struct pci_dev *pcidev;
+ unsigned char da_range[8]; // D/A output range for each channel
+
+ sampl_t ao_data[8]; // data output buffer
+} pci1723_private;
+
+/*the following macro to make it easy to
+* access the private structure.
+*/
+#define devpriv ((pci1723_private *)dev->private)
+
+#define this_board boardtypes
+
+/*
+ * the pci1723 card reset;
+ */
+static int pci1723_reset(comedi_device * dev)
+{
+ int i;
+ DPRINTK("adv_pci1723 EDBG: BGN: pci1723_reset(...)\n");
+
+ outw(0x01, dev->iobase + PCI1723_SYN_SET); // set synchronous output mode
+
+ for (i = 0; i < 8; i++) {
+ // set all outputs to 0V
+ devpriv->ao_data[i] = 0x8000;
+ outw(devpriv->ao_data[i], dev->iobase + PCI1723_DA(i));
+ // set all ranges to +/- 10V
+ devpriv->da_range[i] = 0;
+ outw(((devpriv->da_range[i] << 4) | i),
+ PCI1723_RANGE_CALIBRATION_MODE);
+ }
+
+ outw(0, dev->iobase + PCI1723_CHANGE_CHA_OUTPUT_TYPE_STROBE); // update ranges
+ outw(0, dev->iobase + PCI1723_SYN_STROBE); // update outputs
+
+ // set asynchronous output mode
+ outw(0, dev->iobase + PCI1723_SYN_SET);
+
+ DPRINTK("adv_pci1723 EDBG: END: pci1723_reset(...)\n");
+ return 0;
+}
+
+static int pci1723_insn_read_ao(comedi_device * dev, comedi_subdevice * s,
+ comedi_insn * insn, lsampl_t * data)
+{
+ int n, chan;
+
+ chan = CR_CHAN(insn->chanspec);
+ DPRINTK(" adv_PCI1723 DEBUG: pci1723_insn_read_ao() ----- \n");
+ for (n = 0; n < insn->n; n++)
+ data[n] = devpriv->ao_data[chan];
+
+ return n;
+}
+
+/*
+ analog data output;
+*/
+static int pci1723_ao_write_winsn(comedi_device * dev, comedi_subdevice * s,
+ comedi_insn * insn, lsampl_t * data)
+{
+ int n, chan;
+ chan = CR_CHAN(insn->chanspec);
+
+ DPRINTK("PCI1723: the pci1723_ao_write_winsn() ------\n");
+
+ for (n = 0; n < insn->n; n++) {
+
+ devpriv->ao_data[chan] = data[n];
+ outw(data[n], dev->iobase + PCI1723_DA(chan));
+ }
+
+ return n;
+}
+
+/*
+ digital i/o config/query
+*/
+static int pci1723_dio_insn_config(comedi_device * dev, comedi_subdevice * s,
+ comedi_insn * insn, lsampl_t * data)
+{
+ unsigned int mask;
+ unsigned int bits;
+ unsigned short dio_mode;
+
+ mask = 1 << CR_CHAN(insn->chanspec);
+ if (mask & 0x00FF) {
+ bits = 0x00FF;
+ } else {
+ bits = 0xFF00;
+ }
+ switch (data[0]) {
+ case INSN_CONFIG_DIO_INPUT:
+ s->io_bits &= ~bits;
+ break;
+ case INSN_CONFIG_DIO_OUTPUT:
+ s->io_bits |= bits;
+ break;
+ case INSN_CONFIG_DIO_QUERY:
+ data[1] = (s->io_bits & bits) ? COMEDI_OUTPUT : COMEDI_INPUT;
+ return insn->n;
+ default:
+ return -EINVAL;
+ }
+
+ // update hardware DIO mode
+ dio_mode = 0x0000; // low byte output, high byte output
+ if ((s->io_bits & 0x00FF) == 0)
+ dio_mode |= 0x0001; // low byte input
+ if ((s->io_bits & 0xFF00) == 0)
+ dio_mode |= 0x0002; // high byte input
+ outw(dio_mode, dev->iobase + PCI1723_DIGITAL_IO_PORT_SET);
+ return 1;
+}
+
+/*
+ digital i/o bits read/write
+*/
+static int pci1723_dio_insn_bits(comedi_device * dev, comedi_subdevice * s,
+ comedi_insn * insn, lsampl_t * data)
+{
+ if (data[0]) {
+ s->state &= ~data[0];
+ s->state |= (data[0] & data[1]);
+ outw(s->state, dev->iobase + PCI1723_WRITE_DIGITAL_OUTPUT_CMD);
+ }
+ data[1] = inw(dev->iobase + PCI1723_READ_DIGITAL_INPUT_DATA);
+ return 2;
+}
+
+/*
+ * Attach is called by the Comedi core to configure the driver
+ * for a pci1723 board.
+ */
+static int pci1723_attach(comedi_device * dev, comedi_devconfig * it)
+{
+ comedi_subdevice *s;
+ int ret, subdev, n_subdevices;
+ struct pci_dev *pcidev;
+ unsigned int iobase;
+ unsigned char pci_bus, pci_slot, pci_func;
+ int opt_bus, opt_slot;
+ const char *errstr;
+
+ rt_printk("comedi%d: adv_pci1723: board=%s", dev->minor,
+ this_board->name);
+
+ opt_bus = it->options[0];
+ opt_slot = it->options[1];
+
+ if ((ret = alloc_private(dev, sizeof(pci1723_private))) < 0) {
+ rt_printk(" - Allocation failed!\n");
+ return -ENOMEM;
+ }
+
+ /* Look for matching PCI device */
+ errstr = "not found!";
+ pcidev = NULL;
+ while (NULL != (pcidev =
+ pci_get_device(PCI_VENDOR_ID_ADVANTECH,
+ this_board->device_id, pcidev))) {
+ /* Found matching vendor/device. */
+ if (opt_bus || opt_slot) {
+ /* Check bus/slot. */
+ if (opt_bus != pcidev->bus->number
+ || opt_slot != PCI_SLOT(pcidev->devfn))
+ continue; /* no match */
+ }
+ /*
+ * Look for device that isn't in use.
+ * Enable PCI device and request regions.
+ */
+ if (comedi_pci_enable(pcidev, "adv_pci1723")) {
+ errstr = "failed to enable PCI device and request regions!";
+ continue;
+ }
+ break;
+ }
+
+ if (!pcidev) {
+ if (opt_bus || opt_slot) {
+ rt_printk(" - Card at b:s %d:%d %s\n",
+ opt_bus, opt_slot, errstr);
+ } else {
+ rt_printk(" - Card %s\n", errstr);
+ }
+ return -EIO;
+ }
+
+ pci_bus = pcidev->bus->number;
+ pci_slot = PCI_SLOT(pcidev->devfn);
+ pci_func = PCI_FUNC(pcidev->devfn);
+ iobase = pci_resource_start(pcidev, 2);
+
+ rt_printk(", b:s:f=%d:%d:%d, io=0x%4x", pci_bus, pci_slot, pci_func,
+ iobase);
+
+ dev->iobase = iobase;
+
+ dev->board_name = this_board->name;
+ devpriv->pcidev = pcidev;
+
+ n_subdevices = 0;
+
+ if (this_board->n_aochan)
+ n_subdevices++;
+ if (this_board->n_diochan)
+ n_subdevices++;
+
+ if ((ret = alloc_subdevices(dev, n_subdevices)) < 0) {
+ rt_printk(" - Allocation failed!\n");
+ return ret;
+ }
+
+ pci1723_reset(dev);
+ subdev = 0;
+ if (this_board->n_aochan) {
+ s = dev->subdevices + subdev;
+ dev->write_subdev = s;
+ s->type = COMEDI_SUBD_AO;
+ s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
+ s->n_chan = this_board->n_aochan;
+ s->maxdata = this_board->ao_maxdata;
+ s->len_chanlist = this_board->n_aochan;
+ s->range_table = this_board->rangelist_ao;
+
+ s->insn_write = pci1723_ao_write_winsn;
+ s->insn_read = pci1723_insn_read_ao;
+
+ // read DIO config
+ switch (inw(dev->iobase + PCI1723_DIGITAL_IO_PORT_MODE) & 0x03) {
+ case 0x00: // low byte output, high byte output
+ s->io_bits = 0xFFFF;
+ break;
+ case 0x01: // low byte input, high byte output
+ s->io_bits = 0xFF00;
+ break;
+ case 0x02: // low byte output, high byte input
+ s->io_bits = 0x00FF;
+ break;
+ case 0x03: // low byte input, high byte input
+ s->io_bits = 0x0000;
+ break;
+ }
+ // read DIO port state
+ s->state = inw(dev->iobase + PCI1723_READ_DIGITAL_INPUT_DATA);
+
+ subdev++;
+ }
+
+ if (this_board->n_diochan) {
+ s = dev->subdevices + subdev;
+ s->type = COMEDI_SUBD_DIO;
+ s->subdev_flags =
+ SDF_READABLE | SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
+ s->n_chan = this_board->n_diochan;
+ s->maxdata = 1;
+ s->len_chanlist = this_board->n_diochan;
+ s->range_table = &range_digital;
+ s->insn_config = pci1723_dio_insn_config;
+ s->insn_bits = pci1723_dio_insn_bits;
+ subdev++;
+ }
+
+ devpriv->valid = 1;
+
+ pci1723_reset(dev);
+
+ return 0;
+}
+
+/*
+ * _detach is called to deconfigure a device. It should deallocate
+ * resources.
+ * This function is also called when _attach() fails, so it should be
+ * careful not to release resources that were not necessarily
+ * allocated by _attach(). dev->private and dev->subdevices are
+ * deallocated automatically by the core.
+ */
+static int pci1723_detach(comedi_device * dev)
+{
+ printk("comedi%d: pci1723: remove\n", dev->minor);
+
+ if (dev->private) {
+ if (devpriv->valid)
+ pci1723_reset(dev);
+
+ if (devpriv->pcidev) {
+ if (dev->iobase) {
+ comedi_pci_disable(devpriv->pcidev);
+ }
+ pci_dev_put(devpriv->pcidev);
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * A convenient macro that defines init_module() and cleanup_module(),
+ * as necessary.
+ */
+COMEDI_PCI_INITCLEANUP(driver_pci1723, pci1723_pci_table);
git://bbs.cooldavid.org / net-next-2.6.git / commitdiff