18ffdff6aSGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0+
28ffdff6aSGreg Kroah-Hartman /*
38ffdff6aSGreg Kroah-Hartman * adv_pci1723.c
48ffdff6aSGreg Kroah-Hartman * Comedi driver for the Advantech PCI-1723 card.
58ffdff6aSGreg Kroah-Hartman *
68ffdff6aSGreg Kroah-Hartman * COMEDI - Linux Control and Measurement Device Interface
78ffdff6aSGreg Kroah-Hartman * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
88ffdff6aSGreg Kroah-Hartman */
98ffdff6aSGreg Kroah-Hartman
108ffdff6aSGreg Kroah-Hartman /*
118ffdff6aSGreg Kroah-Hartman * Driver: adv_pci1723
128ffdff6aSGreg Kroah-Hartman * Description: Advantech PCI-1723
138ffdff6aSGreg Kroah-Hartman * Author: yonggang <rsmgnu@gmail.com>, Ian Abbott <abbotti@mev.co.uk>
148ffdff6aSGreg Kroah-Hartman * Devices: [Advantech] PCI-1723 (adv_pci1723)
158ffdff6aSGreg Kroah-Hartman * Updated: Mon, 14 Apr 2008 15:12:56 +0100
168ffdff6aSGreg Kroah-Hartman * Status: works
178ffdff6aSGreg Kroah-Hartman *
188ffdff6aSGreg Kroah-Hartman * Configuration Options: not applicable, uses comedi PCI auto config
198ffdff6aSGreg Kroah-Hartman *
208ffdff6aSGreg Kroah-Hartman * Subdevice 0 is 8-channel AO, 16-bit, range +/- 10 V.
218ffdff6aSGreg Kroah-Hartman *
228ffdff6aSGreg Kroah-Hartman * Subdevice 1 is 16-channel DIO. The channels are configurable as
238ffdff6aSGreg Kroah-Hartman * input or output in 2 groups (0 to 7, 8 to 15). Configuring any
248ffdff6aSGreg Kroah-Hartman * channel implicitly configures all channels in the same group.
258ffdff6aSGreg Kroah-Hartman *
268ffdff6aSGreg Kroah-Hartman * TODO:
278ffdff6aSGreg Kroah-Hartman * 1. Add the two milliamp ranges to the AO subdevice (0 to 20 mA,
288ffdff6aSGreg Kroah-Hartman * 4 to 20 mA).
298ffdff6aSGreg Kroah-Hartman * 2. Read the initial ranges and values of the AO subdevice at
308ffdff6aSGreg Kroah-Hartman * start-up instead of reinitializing them.
318ffdff6aSGreg Kroah-Hartman * 3. Implement calibration.
328ffdff6aSGreg Kroah-Hartman */
338ffdff6aSGreg Kroah-Hartman
348ffdff6aSGreg Kroah-Hartman #include <linux/module.h>
35*df0e68c1SIan Abbott #include <linux/comedi/comedi_pci.h>
368ffdff6aSGreg Kroah-Hartman
378ffdff6aSGreg Kroah-Hartman /*
388ffdff6aSGreg Kroah-Hartman * PCI Bar 2 I/O Register map (dev->iobase)
398ffdff6aSGreg Kroah-Hartman */
408ffdff6aSGreg Kroah-Hartman #define PCI1723_AO_REG(x) (0x00 + ((x) * 2))
418ffdff6aSGreg Kroah-Hartman #define PCI1723_BOARD_ID_REG 0x10
428ffdff6aSGreg Kroah-Hartman #define PCI1723_BOARD_ID_MASK (0xf << 0)
438ffdff6aSGreg Kroah-Hartman #define PCI1723_SYNC_CTRL_REG 0x12
448ffdff6aSGreg Kroah-Hartman #define PCI1723_SYNC_CTRL(x) (((x) & 0x1) << 0)
458ffdff6aSGreg Kroah-Hartman #define PCI1723_SYNC_CTRL_ASYNC PCI1723_SYNC_CTRL(0)
468ffdff6aSGreg Kroah-Hartman #define PCI1723_SYNC_CTRL_SYNC PCI1723_SYNC_CTRL(1)
478ffdff6aSGreg Kroah-Hartman #define PCI1723_CTRL_REG 0x14
488ffdff6aSGreg Kroah-Hartman #define PCI1723_CTRL_BUSY BIT(15)
498ffdff6aSGreg Kroah-Hartman #define PCI1723_CTRL_INIT BIT(14)
508ffdff6aSGreg Kroah-Hartman #define PCI1723_CTRL_SELF BIT(8)
518ffdff6aSGreg Kroah-Hartman #define PCI1723_CTRL_IDX(x) (((x) & 0x3) << 6)
528ffdff6aSGreg Kroah-Hartman #define PCI1723_CTRL_RANGE(x) (((x) & 0x3) << 4)
538ffdff6aSGreg Kroah-Hartman #define PCI1723_CTRL_SEL(x) (((x) & 0x1) << 3)
548ffdff6aSGreg Kroah-Hartman #define PCI1723_CTRL_GAIN PCI1723_CTRL_SEL(0)
558ffdff6aSGreg Kroah-Hartman #define PCI1723_CTRL_OFFSET PCI1723_CTRL_SEL(1)
568ffdff6aSGreg Kroah-Hartman #define PCI1723_CTRL_CHAN(x) (((x) & 0x7) << 0)
578ffdff6aSGreg Kroah-Hartman #define PCI1723_CALIB_CTRL_REG 0x16
588ffdff6aSGreg Kroah-Hartman #define PCI1723_CALIB_CTRL_CS BIT(2)
598ffdff6aSGreg Kroah-Hartman #define PCI1723_CALIB_CTRL_DAT BIT(1)
608ffdff6aSGreg Kroah-Hartman #define PCI1723_CALIB_CTRL_CLK BIT(0)
618ffdff6aSGreg Kroah-Hartman #define PCI1723_CALIB_STROBE_REG 0x18
628ffdff6aSGreg Kroah-Hartman #define PCI1723_DIO_CTRL_REG 0x1a
638ffdff6aSGreg Kroah-Hartman #define PCI1723_DIO_CTRL_HDIO BIT(1)
648ffdff6aSGreg Kroah-Hartman #define PCI1723_DIO_CTRL_LDIO BIT(0)
658ffdff6aSGreg Kroah-Hartman #define PCI1723_DIO_DATA_REG 0x1c
668ffdff6aSGreg Kroah-Hartman #define PCI1723_CALIB_DATA_REG 0x1e
678ffdff6aSGreg Kroah-Hartman #define PCI1723_SYNC_STROBE_REG 0x20
688ffdff6aSGreg Kroah-Hartman #define PCI1723_RESET_AO_STROBE_REG 0x22
698ffdff6aSGreg Kroah-Hartman #define PCI1723_RESET_CALIB_STROBE_REG 0x24
708ffdff6aSGreg Kroah-Hartman #define PCI1723_RANGE_STROBE_REG 0x26
718ffdff6aSGreg Kroah-Hartman #define PCI1723_VREF_REG 0x28
728ffdff6aSGreg Kroah-Hartman #define PCI1723_VREF(x) (((x) & 0x3) << 0)
738ffdff6aSGreg Kroah-Hartman #define PCI1723_VREF_NEG10V PCI1723_VREF(0)
748ffdff6aSGreg Kroah-Hartman #define PCI1723_VREF_0V PCI1723_VREF(1)
758ffdff6aSGreg Kroah-Hartman #define PCI1723_VREF_POS10V PCI1723_VREF(3)
768ffdff6aSGreg Kroah-Hartman
pci1723_ao_insn_write(struct comedi_device * dev,struct comedi_subdevice * s,struct comedi_insn * insn,unsigned int * data)778ffdff6aSGreg Kroah-Hartman static int pci1723_ao_insn_write(struct comedi_device *dev,
788ffdff6aSGreg Kroah-Hartman struct comedi_subdevice *s,
798ffdff6aSGreg Kroah-Hartman struct comedi_insn *insn,
808ffdff6aSGreg Kroah-Hartman unsigned int *data)
818ffdff6aSGreg Kroah-Hartman {
828ffdff6aSGreg Kroah-Hartman unsigned int chan = CR_CHAN(insn->chanspec);
838ffdff6aSGreg Kroah-Hartman int i;
848ffdff6aSGreg Kroah-Hartman
858ffdff6aSGreg Kroah-Hartman for (i = 0; i < insn->n; i++) {
868ffdff6aSGreg Kroah-Hartman unsigned int val = data[i];
878ffdff6aSGreg Kroah-Hartman
888ffdff6aSGreg Kroah-Hartman outw(val, dev->iobase + PCI1723_AO_REG(chan));
898ffdff6aSGreg Kroah-Hartman s->readback[chan] = val;
908ffdff6aSGreg Kroah-Hartman }
918ffdff6aSGreg Kroah-Hartman
928ffdff6aSGreg Kroah-Hartman return insn->n;
938ffdff6aSGreg Kroah-Hartman }
948ffdff6aSGreg Kroah-Hartman
pci1723_dio_insn_config(struct comedi_device * dev,struct comedi_subdevice * s,struct comedi_insn * insn,unsigned int * data)958ffdff6aSGreg Kroah-Hartman static int pci1723_dio_insn_config(struct comedi_device *dev,
968ffdff6aSGreg Kroah-Hartman struct comedi_subdevice *s,
978ffdff6aSGreg Kroah-Hartman struct comedi_insn *insn,
988ffdff6aSGreg Kroah-Hartman unsigned int *data)
998ffdff6aSGreg Kroah-Hartman {
1008ffdff6aSGreg Kroah-Hartman unsigned int chan = CR_CHAN(insn->chanspec);
1018ffdff6aSGreg Kroah-Hartman unsigned int mask = (chan < 8) ? 0x00ff : 0xff00;
1028ffdff6aSGreg Kroah-Hartman unsigned short mode = 0x0000; /* assume output */
1038ffdff6aSGreg Kroah-Hartman int ret;
1048ffdff6aSGreg Kroah-Hartman
1058ffdff6aSGreg Kroah-Hartman ret = comedi_dio_insn_config(dev, s, insn, data, mask);
1068ffdff6aSGreg Kroah-Hartman if (ret)
1078ffdff6aSGreg Kroah-Hartman return ret;
1088ffdff6aSGreg Kroah-Hartman
1098ffdff6aSGreg Kroah-Hartman if (!(s->io_bits & 0x00ff))
1108ffdff6aSGreg Kroah-Hartman mode |= PCI1723_DIO_CTRL_LDIO; /* low byte input */
1118ffdff6aSGreg Kroah-Hartman if (!(s->io_bits & 0xff00))
1128ffdff6aSGreg Kroah-Hartman mode |= PCI1723_DIO_CTRL_HDIO; /* high byte input */
1138ffdff6aSGreg Kroah-Hartman outw(mode, dev->iobase + PCI1723_DIO_CTRL_REG);
1148ffdff6aSGreg Kroah-Hartman
1158ffdff6aSGreg Kroah-Hartman return insn->n;
1168ffdff6aSGreg Kroah-Hartman }
1178ffdff6aSGreg Kroah-Hartman
pci1723_dio_insn_bits(struct comedi_device * dev,struct comedi_subdevice * s,struct comedi_insn * insn,unsigned int * data)1188ffdff6aSGreg Kroah-Hartman static int pci1723_dio_insn_bits(struct comedi_device *dev,
1198ffdff6aSGreg Kroah-Hartman struct comedi_subdevice *s,
1208ffdff6aSGreg Kroah-Hartman struct comedi_insn *insn,
1218ffdff6aSGreg Kroah-Hartman unsigned int *data)
1228ffdff6aSGreg Kroah-Hartman {
1238ffdff6aSGreg Kroah-Hartman if (comedi_dio_update_state(s, data))
1248ffdff6aSGreg Kroah-Hartman outw(s->state, dev->iobase + PCI1723_DIO_DATA_REG);
1258ffdff6aSGreg Kroah-Hartman
1268ffdff6aSGreg Kroah-Hartman data[1] = inw(dev->iobase + PCI1723_DIO_DATA_REG);
1278ffdff6aSGreg Kroah-Hartman
1288ffdff6aSGreg Kroah-Hartman return insn->n;
1298ffdff6aSGreg Kroah-Hartman }
1308ffdff6aSGreg Kroah-Hartman
pci1723_auto_attach(struct comedi_device * dev,unsigned long context_unused)1318ffdff6aSGreg Kroah-Hartman static int pci1723_auto_attach(struct comedi_device *dev,
1328ffdff6aSGreg Kroah-Hartman unsigned long context_unused)
1338ffdff6aSGreg Kroah-Hartman {
1348ffdff6aSGreg Kroah-Hartman struct pci_dev *pcidev = comedi_to_pci_dev(dev);
1358ffdff6aSGreg Kroah-Hartman struct comedi_subdevice *s;
1368ffdff6aSGreg Kroah-Hartman unsigned int val;
1378ffdff6aSGreg Kroah-Hartman int ret;
1388ffdff6aSGreg Kroah-Hartman int i;
1398ffdff6aSGreg Kroah-Hartman
1408ffdff6aSGreg Kroah-Hartman ret = comedi_pci_enable(dev);
1418ffdff6aSGreg Kroah-Hartman if (ret)
1428ffdff6aSGreg Kroah-Hartman return ret;
1438ffdff6aSGreg Kroah-Hartman dev->iobase = pci_resource_start(pcidev, 2);
1448ffdff6aSGreg Kroah-Hartman
1458ffdff6aSGreg Kroah-Hartman ret = comedi_alloc_subdevices(dev, 2);
1468ffdff6aSGreg Kroah-Hartman if (ret)
1478ffdff6aSGreg Kroah-Hartman return ret;
1488ffdff6aSGreg Kroah-Hartman
1498ffdff6aSGreg Kroah-Hartman s = &dev->subdevices[0];
1508ffdff6aSGreg Kroah-Hartman s->type = COMEDI_SUBD_AO;
1518ffdff6aSGreg Kroah-Hartman s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
1528ffdff6aSGreg Kroah-Hartman s->n_chan = 8;
1538ffdff6aSGreg Kroah-Hartman s->maxdata = 0xffff;
1548ffdff6aSGreg Kroah-Hartman s->range_table = &range_bipolar10;
1558ffdff6aSGreg Kroah-Hartman s->insn_write = pci1723_ao_insn_write;
1568ffdff6aSGreg Kroah-Hartman
1578ffdff6aSGreg Kroah-Hartman ret = comedi_alloc_subdev_readback(s);
1588ffdff6aSGreg Kroah-Hartman if (ret)
1598ffdff6aSGreg Kroah-Hartman return ret;
1608ffdff6aSGreg Kroah-Hartman
1618ffdff6aSGreg Kroah-Hartman /* synchronously reset all analog outputs to 0V, +/-10V range */
1628ffdff6aSGreg Kroah-Hartman outw(PCI1723_SYNC_CTRL_SYNC, dev->iobase + PCI1723_SYNC_CTRL_REG);
1638ffdff6aSGreg Kroah-Hartman for (i = 0; i < s->n_chan; i++) {
1648ffdff6aSGreg Kroah-Hartman outw(PCI1723_CTRL_RANGE(0) | PCI1723_CTRL_CHAN(i),
1658ffdff6aSGreg Kroah-Hartman PCI1723_CTRL_REG);
1668ffdff6aSGreg Kroah-Hartman outw(0, dev->iobase + PCI1723_RANGE_STROBE_REG);
1678ffdff6aSGreg Kroah-Hartman
1688ffdff6aSGreg Kroah-Hartman outw(0x8000, dev->iobase + PCI1723_AO_REG(i));
1698ffdff6aSGreg Kroah-Hartman s->readback[i] = 0x8000;
1708ffdff6aSGreg Kroah-Hartman }
1718ffdff6aSGreg Kroah-Hartman outw(0, dev->iobase + PCI1723_SYNC_STROBE_REG);
1728ffdff6aSGreg Kroah-Hartman
1738ffdff6aSGreg Kroah-Hartman /* disable syncronous control */
1748ffdff6aSGreg Kroah-Hartman outw(PCI1723_SYNC_CTRL_ASYNC, dev->iobase + PCI1723_SYNC_CTRL_REG);
1758ffdff6aSGreg Kroah-Hartman
1768ffdff6aSGreg Kroah-Hartman s = &dev->subdevices[1];
1778ffdff6aSGreg Kroah-Hartman s->type = COMEDI_SUBD_DIO;
1788ffdff6aSGreg Kroah-Hartman s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
1798ffdff6aSGreg Kroah-Hartman s->n_chan = 16;
1808ffdff6aSGreg Kroah-Hartman s->maxdata = 1;
1818ffdff6aSGreg Kroah-Hartman s->range_table = &range_digital;
1828ffdff6aSGreg Kroah-Hartman s->insn_config = pci1723_dio_insn_config;
1838ffdff6aSGreg Kroah-Hartman s->insn_bits = pci1723_dio_insn_bits;
1848ffdff6aSGreg Kroah-Hartman
1858ffdff6aSGreg Kroah-Hartman /* get initial DIO direction and state */
1868ffdff6aSGreg Kroah-Hartman val = inw(dev->iobase + PCI1723_DIO_CTRL_REG);
1878ffdff6aSGreg Kroah-Hartman if (!(val & PCI1723_DIO_CTRL_LDIO))
1888ffdff6aSGreg Kroah-Hartman s->io_bits |= 0x00ff; /* low byte output */
1898ffdff6aSGreg Kroah-Hartman if (!(val & PCI1723_DIO_CTRL_HDIO))
1908ffdff6aSGreg Kroah-Hartman s->io_bits |= 0xff00; /* high byte output */
1918ffdff6aSGreg Kroah-Hartman s->state = inw(dev->iobase + PCI1723_DIO_DATA_REG);
1928ffdff6aSGreg Kroah-Hartman
1938ffdff6aSGreg Kroah-Hartman return 0;
1948ffdff6aSGreg Kroah-Hartman }
1958ffdff6aSGreg Kroah-Hartman
1968ffdff6aSGreg Kroah-Hartman static struct comedi_driver adv_pci1723_driver = {
1978ffdff6aSGreg Kroah-Hartman .driver_name = "adv_pci1723",
1988ffdff6aSGreg Kroah-Hartman .module = THIS_MODULE,
1998ffdff6aSGreg Kroah-Hartman .auto_attach = pci1723_auto_attach,
2008ffdff6aSGreg Kroah-Hartman .detach = comedi_pci_detach,
2018ffdff6aSGreg Kroah-Hartman };
2028ffdff6aSGreg Kroah-Hartman
adv_pci1723_pci_probe(struct pci_dev * dev,const struct pci_device_id * id)2038ffdff6aSGreg Kroah-Hartman static int adv_pci1723_pci_probe(struct pci_dev *dev,
2048ffdff6aSGreg Kroah-Hartman const struct pci_device_id *id)
2058ffdff6aSGreg Kroah-Hartman {
2068ffdff6aSGreg Kroah-Hartman return comedi_pci_auto_config(dev, &adv_pci1723_driver,
2078ffdff6aSGreg Kroah-Hartman id->driver_data);
2088ffdff6aSGreg Kroah-Hartman }
2098ffdff6aSGreg Kroah-Hartman
2108ffdff6aSGreg Kroah-Hartman static const struct pci_device_id adv_pci1723_pci_table[] = {
2118ffdff6aSGreg Kroah-Hartman { PCI_DEVICE(PCI_VENDOR_ID_ADVANTECH, 0x1723) },
2128ffdff6aSGreg Kroah-Hartman { 0 }
2138ffdff6aSGreg Kroah-Hartman };
2148ffdff6aSGreg Kroah-Hartman MODULE_DEVICE_TABLE(pci, adv_pci1723_pci_table);
2158ffdff6aSGreg Kroah-Hartman
2168ffdff6aSGreg Kroah-Hartman static struct pci_driver adv_pci1723_pci_driver = {
2178ffdff6aSGreg Kroah-Hartman .name = "adv_pci1723",
2188ffdff6aSGreg Kroah-Hartman .id_table = adv_pci1723_pci_table,
2198ffdff6aSGreg Kroah-Hartman .probe = adv_pci1723_pci_probe,
2208ffdff6aSGreg Kroah-Hartman .remove = comedi_pci_auto_unconfig,
2218ffdff6aSGreg Kroah-Hartman };
2228ffdff6aSGreg Kroah-Hartman module_comedi_pci_driver(adv_pci1723_driver, adv_pci1723_pci_driver);
2238ffdff6aSGreg Kroah-Hartman
2248ffdff6aSGreg Kroah-Hartman MODULE_AUTHOR("Comedi https://www.comedi.org");
2258ffdff6aSGreg Kroah-Hartman MODULE_DESCRIPTION("Advantech PCI-1723 Comedi driver");
2268ffdff6aSGreg Kroah-Hartman MODULE_LICENSE("GPL");
227