/* comedi/drivers/adl_pci6208.c Hardware driver for ADLink 6208 series cards: card | voltage output | current output -------------+-------------------+--------------- PCI-6208V | 8 channels | - PCI-6216V | 16 channels | - PCI-6208A | 8 channels | 8 channels 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: adl_pci6208 Description: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards Devices: (ADLink) PCI-6208 [adl_pci6208] (ADLink) PCI-6216 [adl_pci6216] Author: nsyeow Updated: Fri, 30 Jan 2004 14:44:27 +0800 Status: untested Configuration Options: not applicable, uses PCI auto config References: - ni_660x.c - adl_pci9111.c copied the entire pci setup section - adl_pci9118.c */ #include #include "../comedidev.h" /* * PCI-6208/6216-GL register map */ #define PCI6208_AO_CONTROL(x) (0x00 + (2 * (x))) #define PCI6208_AO_STATUS 0x00 #define PCI6208_AO_STATUS_DATA_SEND (1 << 0) #define PCI6208_DIO 0x40 #define PCI6208_DIO_DO_MASK (0x0f) #define PCI6208_DIO_DO_SHIFT (0) #define PCI6208_DIO_DI_MASK (0xf0) #define PCI6208_DIO_DI_SHIFT (4) #define PCI6208_MAX_AO_CHANNELS 16 enum pci6208_boardid { BOARD_PCI6208, BOARD_PCI6216, }; struct pci6208_board { const char *name; int ao_chans; }; static const struct pci6208_board pci6208_boards[] = { [BOARD_PCI6208] = { .name = "adl_pci6208", .ao_chans = 8, }, [BOARD_PCI6216] = { .name = "adl_pci6216", .ao_chans = 16, }, }; struct pci6208_private { unsigned int ao_readback[PCI6208_MAX_AO_CHANNELS]; }; static int pci6208_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { struct pci6208_private *devpriv = dev->private; int chan = CR_CHAN(insn->chanspec); unsigned long invert = 1 << (16 - 1); unsigned long value = 0; unsigned short status; int i; for (i = 0; i < insn->n; i++) { value = data[i] ^ invert; do { status = inw(dev->iobase + PCI6208_AO_STATUS); } while (status & PCI6208_AO_STATUS_DATA_SEND); outw(value, dev->iobase + PCI6208_AO_CONTROL(chan)); } devpriv->ao_readback[chan] = value; return insn->n; } static int pci6208_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { struct pci6208_private *devpriv = dev->private; int chan = CR_CHAN(insn->chanspec); int i; for (i = 0; i < insn->n; i++) data[i] = devpriv->ao_readback[chan]; return insn->n; } static int pci6208_di_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { unsigned int val; val = inw(dev->iobase + PCI6208_DIO); val = (val & PCI6208_DIO_DI_MASK) >> PCI6208_DIO_DI_SHIFT; data[1] = val; return insn->n; } static int pci6208_do_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { unsigned int mask = data[0]; unsigned int bits = data[1]; if (mask) { s->state &= ~mask; s->state |= (bits & mask); outw(s->state, dev->iobase + PCI6208_DIO); } data[1] = s->state; return insn->n; } static int pci6208_auto_attach(struct comedi_device *dev, unsigned long context) { struct pci_dev *pcidev = comedi_to_pci_dev(dev); const struct pci6208_board *boardinfo = NULL; struct pci6208_private *devpriv; struct comedi_subdevice *s; unsigned int val; int ret; if (context < ARRAY_SIZE(pci6208_boards)) boardinfo = &pci6208_boards[context]; if (!boardinfo) return -ENODEV; dev->board_ptr = boardinfo; dev->board_name = boardinfo->name; 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, 3); if (ret) return ret; s = &dev->subdevices[0]; /* analog output subdevice */ s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE; s->n_chan = boardinfo->ao_chans; s->maxdata = 0xffff; s->range_table = &range_bipolar10; s->insn_write = pci6208_ao_winsn; s->insn_read = pci6208_ao_rinsn; s = &dev->subdevices[1]; /* digital input subdevice */ s->type = COMEDI_SUBD_DI; s->subdev_flags = SDF_READABLE; s->n_chan = 4; s->maxdata = 1; s->range_table = &range_digital; s->insn_bits = pci6208_di_insn_bits; s = &dev->subdevices[2]; /* digital output subdevice */ s->type = COMEDI_SUBD_DO; s->subdev_flags = SDF_WRITABLE; s->n_chan = 4; s->maxdata = 1; s->range_table = &range_digital; s->insn_bits = pci6208_do_insn_bits; /* * Get the read back signals from the digital outputs * and save it as the initial state for the subdevice. */ val = inw(dev->iobase + PCI6208_DIO); val = (val & PCI6208_DIO_DO_MASK) >> PCI6208_DIO_DO_SHIFT; s->state = val; s->io_bits = 0x0f; dev_info(dev->class_dev, "%s: %s, I/O base=0x%04lx\n", dev->driver->driver_name, dev->board_name, dev->iobase); return 0; } static struct comedi_driver adl_pci6208_driver = { .driver_name = "adl_pci6208", .module = THIS_MODULE, .auto_attach = pci6208_auto_attach, .detach = comedi_pci_disable, }; static int adl_pci6208_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { return comedi_pci_auto_config(dev, &adl_pci6208_driver, id->driver_data); } static DEFINE_PCI_DEVICE_TABLE(adl_pci6208_pci_table) = { { PCI_VDEVICE(ADLINK, 0x6208), BOARD_PCI6208 }, { PCI_VDEVICE(ADLINK, 0x6216), BOARD_PCI6216 }, { 0 } }; MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table); static struct pci_driver adl_pci6208_pci_driver = { .name = "adl_pci6208", .id_table = adl_pci6208_pci_table, .probe = adl_pci6208_pci_probe, .remove = comedi_pci_auto_unconfig, }; module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver); MODULE_AUTHOR("Comedi http://www.comedi.org"); MODULE_DESCRIPTION("Comedi low-level driver"); MODULE_LICENSE("GPL");