diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/adl_pci7432.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/adl_pci7432.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/adl_pci7432.c b/drivers/staging/comedi/drivers/adl_pci7432.c new file mode 100644 index 000000000000..a8f1715608d1 --- /dev/null +++ b/drivers/staging/comedi/drivers/adl_pci7432.c @@ -0,0 +1,202 @@ +/* + comedi/drivers/adl_pci7432.c + + Hardware comedi driver fot PCI7432 Adlink card + Copyright (C) 2004 Michel Lachine <mike@mikelachaine.ca> + + 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_pci7432 +Description: Driver for the Adlink PCI-7432 64 ch. isolated digital io board +Devices: [ADLink] PCI-7432 (adl_pci7432) +Author: Michel Lachaine <mike@mikelachaine.ca> +Status: experimental +Updated: Mon, 14 Apr 2008 15:08:14 +0100 + +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. +*/ + +#include "../comedidev.h" +#include <linux/kernel.h> +#include "comedi_pci.h" + +#define PCI7432_DI 0x00 +#define PCI7432_DO 0x00 + +#define PCI_DEVICE_ID_PCI7432 0x7432 + +static DEFINE_PCI_DEVICE_TABLE(adl_pci7432_pci_table) = { + {PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7432, PCI_ANY_ID, PCI_ANY_ID, 0, + 0, 0}, + {0} +}; + +MODULE_DEVICE_TABLE(pci, adl_pci7432_pci_table); + +struct adl_pci7432_private { + int data; + struct pci_dev *pci_dev; +}; + +#define devpriv ((struct adl_pci7432_private *)dev->private) + +static int adl_pci7432_attach(struct comedi_device * dev, struct comedi_devconfig * it); +static int adl_pci7432_detach(struct comedi_device * dev); +static struct comedi_driver driver_adl_pci7432 = { + driver_name:"adl_pci7432", + module:THIS_MODULE, + attach:adl_pci7432_attach, + detach:adl_pci7432_detach, +}; + +/* Digital IO */ + +static int adl_pci7432_di_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s, + struct comedi_insn * insn, unsigned int * data); + +static int adl_pci7432_do_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s, + struct comedi_insn * insn, unsigned int * data); + +/* */ + +static int adl_pci7432_attach(struct comedi_device * dev, struct comedi_devconfig * it) +{ + struct pci_dev *pcidev; + struct comedi_subdevice *s; + int bus, slot; + + printk("comedi: attempt to attach...\n"); + printk("comedi%d: adl_pci7432\n", dev->minor); + + dev->board_name = "pci7432"; + bus = it->options[0]; + slot = it->options[1]; + + if (alloc_private(dev, sizeof(struct adl_pci7432_private)) < 0) + return -ENOMEM; + + if (alloc_subdevices(dev, 2) < 0) + return -ENOMEM; + + for (pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL); + pcidev != NULL; + pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pcidev)) { + + if (pcidev->vendor == PCI_VENDOR_ID_ADLINK && + pcidev->device == PCI_DEVICE_ID_PCI7432) { + if (bus || slot) { + /* requested particular bus/slot */ + if (pcidev->bus->number != bus + || PCI_SLOT(pcidev->devfn) != slot) { + continue; + } + } + devpriv->pci_dev = pcidev; + if (comedi_pci_enable(pcidev, "adl_pci7432") < 0) { + printk("comedi%d: Failed to enable PCI device and request regions\n", dev->minor); + return -EIO; + } + dev->iobase = pci_resource_start(pcidev, 2); + printk("comedi: base addr %4lx\n", dev->iobase); + + s = dev->subdevices + 0; + s->type = COMEDI_SUBD_DI; + s->subdev_flags = + SDF_READABLE | SDF_GROUND | SDF_COMMON; + s->n_chan = 32; + s->maxdata = 1; + s->len_chanlist = 32; + s->io_bits = 0x00000000; + s->range_table = &range_digital; + s->insn_bits = adl_pci7432_di_insn_bits; + + s = dev->subdevices + 1; + s->type = COMEDI_SUBD_DO; + s->subdev_flags = + SDF_WRITABLE | SDF_GROUND | SDF_COMMON; + s->n_chan = 32; + s->maxdata = 1; + s->len_chanlist = 32; + s->io_bits = 0xffffffff; + s->range_table = &range_digital; + s->insn_bits = adl_pci7432_do_insn_bits; + + printk("comedi: attached\n"); + + return 1; + } + } + + printk("comedi%d: no supported board found! (req. bus/slot : %d/%d)\n", + dev->minor, bus, slot); + return -EIO; +} + +static int adl_pci7432_detach(struct comedi_device * dev) +{ + printk("comedi%d: pci7432: remove\n", dev->minor); + + if (devpriv && devpriv->pci_dev) { + if (dev->iobase) { + comedi_pci_disable(devpriv->pci_dev); + } + pci_dev_put(devpriv->pci_dev); + } + + return 0; +} + +static int adl_pci7432_do_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s, + struct comedi_insn * insn, unsigned int * data) +{ + printk("comedi: pci7432_do_insn_bits called\n"); + printk("comedi: data0: %8x data1: %8x\n", data[0], data[1]); + + if (insn->n != 2) + return -EINVAL; + + if (data[0]) { + s->state &= ~data[0]; + s->state |= (data[0] & data[1]); + + printk("comedi: out: %8x on iobase %4lx\n", s->state, + dev->iobase + PCI7432_DO); + outl(s->state & 0xffffffff, dev->iobase + PCI7432_DO); + } + return 2; +} + +static int adl_pci7432_di_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s, + struct comedi_insn * insn, unsigned int * data) +{ + printk("comedi: pci7432_di_insn_bits called\n"); + printk("comedi: data0: %8x data1: %8x\n", data[0], data[1]); + + if (insn->n != 2) + return -EINVAL; + + data[1] = inl(dev->iobase + PCI7432_DI) & 0xffffffff; + printk("comedi: data1 %8x\n", data[1]); + + return 2; +} + +COMEDI_PCI_INITCLEANUP(driver_adl_pci7432, adl_pci7432_pci_table); |