| /* |
| 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. |
| */ |
| /* |
| 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 <linux/module.h> |
| #include <linux/pci.h> |
| |
| #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 */ |
| unsigned 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 chan = CR_CHAN(insn->chanspec); |
| unsigned int mask; |
| unsigned short mode; |
| int ret; |
| |
| if (chan < 8) |
| mask = 0x00ff; |
| else |
| mask = 0xff00; |
| |
| ret = comedi_dio_insn_config(dev, s, insn, data, mask); |
| if (ret) |
| return ret; |
| |
| /* update hardware DIO mode */ |
| mode = 0x0000; /* assume output */ |
| if (!(s->io_bits & 0x00ff)) |
| mode |= 0x0001; /* low byte input */ |
| if (!(s->io_bits & 0xff00)) |
| mode |= 0x0002; /* high byte input */ |
| outw(mode, dev->iobase + PCI1723_DIGITAL_IO_PORT_SET); |
| |
| 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_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 = comedi_alloc_devpriv(dev, sizeof(*devpriv)); |
| if (!devpriv) |
| return -ENOMEM; |
| |
| 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 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("Comedi low-level driver"); |
| MODULE_LICENSE("GPL"); |