/******************************************************************************* comedi/drivers/pci1723.c COMEDI - Linux Control and Measurement Device Interface Copyright (C) 2000 David A. Schleef 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 , Ian Abbott 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 #include "../comedidev.h" /* 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 */ struct pci1723_private { unsigned char da_range[8]; /* D/A output range for each channel */ short ao_data[8]; /* data output buffer */ }; /* * The pci1723 card reset; */ static int pci1723_reset(struct comedi_device *dev) { struct pci1723_private *devpriv = dev->private; int i; 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); return 0; } static int pci1723_insn_read_ao(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { struct pci1723_private *devpriv = dev->private; int n, chan; chan = CR_CHAN(insn->chanspec); for (n = 0; n < insn->n; n++) data[n] = devpriv->ao_data[chan]; return n; } /* analog data output; */ static int pci1723_ao_write_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { struct pci1723_private *devpriv = dev->private; int n, chan; chan = CR_CHAN(insn->chanspec); 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(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *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(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *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 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 pci1723_private *devpriv; struct comedi_subdevice *s; int ret; devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL); if (!devpriv) return -ENOMEM; dev->private = devpriv; 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]; dev->write_subdev = s; s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON; s->n_chan = 8; s->maxdata = 0xffff; s->len_chanlist = 8; s->range_table = &range_bipolar10; s->insn_write = pci1723_ao_write_winsn; s->insn_read = pci1723_insn_read_ao; s = &dev->subdevices[1]; s->type = COMEDI_SUBD_DIO; s->subdev_flags = SDF_READABLE | SDF_WRITABLE; s->n_chan = 16; s->maxdata = 1; s->len_chanlist = 16; s->range_table = &range_digital; s->insn_config = pci1723_dio_insn_config; s->insn_bits = pci1723_dio_insn_bits; /* 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); pci1723_reset(dev); dev_info(dev->class_dev, "%s attached\n", dev->board_name); return 0; } static void pci1723_detach(struct comedi_device *dev) { if (dev->iobase) pci1723_reset(dev); comedi_pci_disable(dev); } static struct comedi_driver adv_pci1723_driver = { .driver_name = "adv_pci1723", .module = THIS_MODULE, .auto_attach = pci1723_auto_attach, .detach = pci1723_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 DEFINE_PCI_DEVICE_TABLE(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("Comedi low-level driver"); MODULE_LICENSE("GPL");