// SPDX-License-Identifier: GPL-2.0+ /* * adv_pci1723.c * Comedi driver for the Advantech PCI-1723 card. * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef */ /* * Driver: adv_pci1723 * Description: Advantech PCI-1723 * Author: yonggang , Ian Abbott * Devices: [Advantech] PCI-1723 (adv_pci1723) * Updated: Mon, 14 Apr 2008 15:12:56 +0100 * Status: works * * Configuration Options: not applicable, uses comedi PCI auto config * * 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 #include "../comedi_pci.h" /* * PCI Bar 2 I/O Register map (dev->iobase) */ #define PCI1723_AO_REG(x) (0x00 + ((x) * 2)) #define PCI1723_BOARD_ID_REG 0x10 #define PCI1723_BOARD_ID_MASK (0xf << 0) #define PCI1723_SYNC_CTRL_REG 0x12 #define PCI1723_SYNC_CTRL(x) (((x) & 0x1) << 0) #define PCI1723_SYNC_CTRL_ASYNC PCI1723_SYNC_CTRL(0) #define PCI1723_SYNC_CTRL_SYNC PCI1723_SYNC_CTRL(1) #define PCI1723_CTRL_REG 0x14 #define PCI1723_CTRL_BUSY BIT(15) #define PCI1723_CTRL_INIT BIT(14) #define PCI1723_CTRL_SELF BIT(8) #define PCI1723_CTRL_IDX(x) (((x) & 0x3) << 6) #define PCI1723_CTRL_RANGE(x) (((x) & 0x3) << 4) #define PCI1723_CTRL_SEL(x) (((x) & 0x1) << 3) #define PCI1723_CTRL_GAIN PCI1723_CTRL_SEL(0) #define PCI1723_CTRL_OFFSET PCI1723_CTRL_SEL(1) #define PCI1723_CTRL_CHAN(x) (((x) & 0x7) << 0) #define PCI1723_CALIB_CTRL_REG 0x16 #define PCI1723_CALIB_CTRL_CS BIT(2) #define PCI1723_CALIB_CTRL_DAT BIT(1) #define PCI1723_CALIB_CTRL_CLK BIT(0) #define PCI1723_CALIB_STROBE_REG 0x18 #define PCI1723_DIO_CTRL_REG 0x1a #define PCI1723_DIO_CTRL_HDIO BIT(1) #define PCI1723_DIO_CTRL_LDIO BIT(0) #define PCI1723_DIO_DATA_REG 0x1c #define PCI1723_CALIB_DATA_REG 0x1e #define PCI1723_SYNC_STROBE_REG 0x20 #define PCI1723_RESET_AO_STROBE_REG 0x22 #define PCI1723_RESET_CALIB_STROBE_REG 0x24 #define PCI1723_RANGE_STROBE_REG 0x26 #define PCI1723_VREF_REG 0x28 #define PCI1723_VREF(x) (((x) & 0x3) << 0) #define PCI1723_VREF_NEG10V PCI1723_VREF(0) #define PCI1723_VREF_0V PCI1723_VREF(1) #define PCI1723_VREF_POS10V PCI1723_VREF(3) static int pci1723_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); int i; for (i = 0; i < insn->n; i++) { unsigned int val = data[i]; outw(val, dev->iobase + PCI1723_AO_REG(chan)); s->readback[chan] = val; } return insn->n; } static int pci1723_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { unsigned int chan = CR_CHAN(insn->chanspec); unsigned int mask = (chan < 8) ? 0x00ff : 0xff00; unsigned short mode = 0x0000; /* assume output */ int ret; ret = comedi_dio_insn_config(dev, s, insn, data, mask); if (ret) return ret; if (!(s->io_bits & 0x00ff)) mode |= PCI1723_DIO_CTRL_LDIO; /* low byte input */ if (!(s->io_bits & 0xff00)) mode |= PCI1723_DIO_CTRL_HDIO; /* high byte input */ outw(mode, dev->iobase + PCI1723_DIO_CTRL_REG); return insn->n; } static int pci1723_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)) outw(s->state, dev->iobase + PCI1723_DIO_DATA_REG); data[1] = inw(dev->iobase + PCI1723_DIO_DATA_REG); return insn->n; } static int pci1723_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; int i; ret = comedi_pci_enable(dev); if (ret) return ret; dev->iobase = pci_resource_start(pcidev, 2); ret = comedi_alloc_subdevices(dev, 2); if (ret) return ret; s = &dev->subdevices[0]; s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON; s->n_chan = 8; s->maxdata = 0xffff; s->range_table = &range_bipolar10; s->insn_write = pci1723_ao_insn_write; ret = comedi_alloc_subdev_readback(s); if (ret) return ret; /* synchronously reset all analog outputs to 0V, +/-10V range */ outw(PCI1723_SYNC_CTRL_SYNC, dev->iobase + PCI1723_SYNC_CTRL_REG); for (i = 0; i < s->n_chan; i++) { outw(PCI1723_CTRL_RANGE(0) | PCI1723_CTRL_CHAN(i), PCI1723_CTRL_REG); outw(0, dev->iobase + PCI1723_RANGE_STROBE_REG); outw(0x8000, dev->iobase + PCI1723_AO_REG(i)); s->readback[i] = 0x8000; } outw(0, dev->iobase + PCI1723_SYNC_STROBE_REG); /* disable syncronous control */ outw(PCI1723_SYNC_CTRL_ASYNC, dev->iobase + PCI1723_SYNC_CTRL_REG); s = &dev->subdevices[1]; s->type = COMEDI_SUBD_DIO; s->subdev_flags = SDF_READABLE | SDF_WRITABLE; s->n_chan = 16; s->maxdata = 1; s->range_table = &range_digital; s->insn_config = pci1723_dio_insn_config; s->insn_bits = pci1723_dio_insn_bits; /* get initial DIO direction and state */ val = inw(dev->iobase + PCI1723_DIO_CTRL_REG); if (!(val & PCI1723_DIO_CTRL_LDIO)) s->io_bits |= 0x00ff; /* low byte output */ if (!(val & PCI1723_DIO_CTRL_HDIO)) s->io_bits |= 0xff00; /* high byte output */ s->state = inw(dev->iobase + PCI1723_DIO_DATA_REG); return 0; } static struct comedi_driver adv_pci1723_driver = { .driver_name = "adv_pci1723", .module = THIS_MODULE, .auto_attach = pci1723_auto_attach, .detach = comedi_pci_detach, }; static int adv_pci1723_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { return comedi_pci_auto_config(dev, &adv_pci1723_driver, id->driver_data); } static const struct pci_device_id adv_pci1723_pci_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_ADVANTECH, 0x1723) }, { 0 } }; MODULE_DEVICE_TABLE(pci, adv_pci1723_pci_table); static struct pci_driver adv_pci1723_pci_driver = { .name = "adv_pci1723", .id_table = adv_pci1723_pci_table, .probe = adv_pci1723_pci_probe, .remove = comedi_pci_auto_unconfig, }; module_comedi_pci_driver(adv_pci1723_driver, adv_pci1723_pci_driver); MODULE_AUTHOR("Comedi http://www.comedi.org"); MODULE_DESCRIPTION("Advantech PCI-1723 Comedi driver"); MODULE_LICENSE("GPL");