| /* |
| 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 <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. |
| |
| 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-6208A |
| Devices: [ADLink] PCI-6208A (adl_pci6208) |
| Author: nsyeow <nsyeow@pd.jaring.my> |
| Updated: Fri, 30 Jan 2004 14:44:27 +0800 |
| Status: untested |
| |
| Configuration Options: |
| none |
| |
| References: |
| - ni_660x.c |
| - adl_pci9111.c copied the entire pci setup section |
| - adl_pci9118.c |
| */ |
| /* |
| * These headers should be followed by a blank line, and any comments |
| * you wish to say about the driver. The comment area is the place |
| * to put any known bugs, limitations, unsupported features, supported |
| * command triggers, whether or not commands are supported on particular |
| * subdevices, etc. |
| * |
| * Somewhere in the comment should be information about configuration |
| * options that are used with comedi_config. |
| */ |
| #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) |
| |
| /* Board descriptions */ |
| struct pci6208_board { |
| const char *name; |
| unsigned short dev_id; /* `lspci` will show you this */ |
| int ao_chans; |
| }; |
| |
| static const struct pci6208_board pci6208_boards[] = { |
| /*{ |
| .name = "pci6208v", |
| .dev_id = 0x6208, // not sure |
| .ao_chans = 8 |
| }, |
| { |
| .name = "pci6216v", |
| .dev_id = 0x6208, // not sure |
| .ao_chans = 16 |
| }, */ |
| { |
| .name = "pci6208a", |
| .dev_id = 0x6208, |
| .ao_chans = 8 |
| } |
| }; |
| |
| struct pci6208_private { |
| int data; |
| struct pci_dev *pci_dev; /* for a PCI device */ |
| unsigned int ao_readback[2]; /* Used for AO readback */ |
| }; |
| |
| 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 i = 0, Data_Read; |
| unsigned short chan = CR_CHAN(insn->chanspec); |
| unsigned long invert = 1 << (16 - 1); |
| unsigned long out_value; |
| /* Writing a list of values to an AO channel is probably not |
| * very useful, but that's how the interface is defined. */ |
| for (i = 0; i < insn->n; i++) { |
| out_value = data[i] ^ invert; |
| /* a typical programming sequence */ |
| do { |
| Data_Read = (inw(dev->iobase) & 1); |
| } while (Data_Read); |
| outw(out_value, dev->iobase + (0x02 * chan)); |
| devpriv->ao_readback[chan] = out_value; |
| } |
| |
| /* return the number of samples read/written */ |
| return i; |
| } |
| |
| /* AO subdevices should have a read insn as well as a write insn. |
| * Usually this means copying a value stored in devpriv. */ |
| 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 i; |
| int chan = CR_CHAN(insn->chanspec); |
| |
| for (i = 0; i < insn->n; i++) |
| data[i] = devpriv->ao_readback[chan]; |
| |
| return i; |
| } |
| |
| static int pci6208_dio_insn_bits(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, |
| unsigned int *data) |
| { |
| unsigned int mask = data[0] & PCI6208_DIO_DO_MASK; |
| unsigned int bits = data[1]; |
| |
| if (mask) { |
| s->state &= ~mask; |
| s->state |= bits & mask; |
| |
| outw(s->state, dev->iobase + PCI6208_DIO); |
| } |
| |
| s->state = inw(dev->iobase + PCI6208_DIO); |
| data[1] = s->state; |
| |
| return insn->n; |
| } |
| |
| static int pci6208_dio_insn_config(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, |
| unsigned int *data) |
| { |
| int chan = CR_CHAN(insn->chanspec); |
| unsigned int mask = 1 << chan; |
| |
| switch (data[0]) { |
| case INSN_CONFIG_DIO_QUERY: |
| data[1] = (s->io_bits & mask) ? COMEDI_OUTPUT : COMEDI_INPUT; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| return insn->n; |
| } |
| |
| static struct pci_dev *pci6208_find_device(struct comedi_device *dev, |
| struct comedi_devconfig *it) |
| { |
| const struct pci6208_board *thisboard; |
| struct pci_dev *pci_dev = NULL; |
| int bus = it->options[0]; |
| int slot = it->options[1]; |
| int i; |
| |
| for_each_pci_dev(pci_dev) { |
| if (pci_dev->vendor != PCI_VENDOR_ID_ADLINK) |
| continue; |
| for (i = 0; i < ARRAY_SIZE(pci6208_boards); i++) { |
| thisboard = &pci6208_boards[i]; |
| if (thisboard->dev_id != pci_dev->device) |
| continue; |
| /* was a particular bus/slot requested? */ |
| if (bus || slot) { |
| /* are we on the wrong bus/slot? */ |
| if (pci_dev->bus->number != bus || |
| PCI_SLOT(pci_dev->devfn) != slot) |
| continue; |
| } |
| dev_dbg(dev->class_dev, |
| "Found %s on bus %d, slot, %d, irq=%d\n", |
| thisboard->name, |
| pci_dev->bus->number, |
| PCI_SLOT(pci_dev->devfn), |
| pci_dev->irq); |
| dev->board_ptr = thisboard; |
| return pci_dev; |
| } |
| } |
| dev_err(dev->class_dev, |
| "No supported board found! (req. bus %d, slot %d)\n", |
| bus, slot); |
| return NULL; |
| } |
| |
| static int pci6208_attach(struct comedi_device *dev, |
| struct comedi_devconfig *it) |
| { |
| const struct pci6208_board *thisboard; |
| struct pci6208_private *devpriv; |
| struct comedi_subdevice *s; |
| int ret; |
| |
| ret = alloc_private(dev, sizeof(*devpriv)); |
| if (ret < 0) |
| return ret; |
| devpriv = dev->private; |
| |
| devpriv->pci_dev = pci6208_find_device(dev, it); |
| if (!devpriv->pci_dev) |
| return -EIO; |
| thisboard = comedi_board(dev); |
| |
| ret = comedi_pci_enable(devpriv->pci_dev, "adl_pci6208"); |
| if (ret) { |
| dev_err(dev->class_dev, |
| "Failed to enable PCI device and request regions\n"); |
| return ret; |
| } |
| |
| dev->iobase = pci_resource_start(devpriv->pci_dev, 2); |
| |
| dev->board_name = thisboard->name; |
| |
| ret = comedi_alloc_subdevices(dev, 2); |
| if (ret) |
| return ret; |
| |
| s = dev->subdevices + 0; |
| /* analog output subdevice */ |
| s->type = COMEDI_SUBD_AO; |
| s->subdev_flags = SDF_WRITABLE; |
| s->n_chan = thisboard->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 i/o subdevice */ |
| s->type = COMEDI_SUBD_DIO; |
| s->subdev_flags = SDF_READABLE | SDF_WRITABLE; |
| s->n_chan = 8; |
| s->maxdata = 1; |
| s->range_table = &range_digital; |
| s->insn_bits = pci6208_dio_insn_bits; |
| s->insn_config = pci6208_dio_insn_config; |
| |
| s->io_bits = 0x0f; |
| s->state = inw(dev->iobase + PCI6208_DIO); |
| |
| 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 void pci6208_detach(struct comedi_device *dev) |
| { |
| struct pci6208_private *devpriv = dev->private; |
| |
| if (devpriv && devpriv->pci_dev) { |
| if (dev->iobase) |
| comedi_pci_disable(devpriv->pci_dev); |
| pci_dev_put(devpriv->pci_dev); |
| } |
| } |
| |
| static struct comedi_driver adl_pci6208_driver = { |
| .driver_name = "adl_pci6208", |
| .module = THIS_MODULE, |
| .attach = pci6208_attach, |
| .detach = pci6208_detach, |
| }; |
| |
| static int __devinit adl_pci6208_pci_probe(struct pci_dev *dev, |
| const struct pci_device_id *ent) |
| { |
| return comedi_pci_auto_config(dev, &adl_pci6208_driver); |
| } |
| |
| static void __devexit adl_pci6208_pci_remove(struct pci_dev *dev) |
| { |
| comedi_pci_auto_unconfig(dev); |
| } |
| |
| /* This is used by modprobe to translate PCI IDs to drivers. Should |
| * only be used for PCI and ISA-PnP devices */ |
| static DEFINE_PCI_DEVICE_TABLE(adl_pci6208_pci_table) = { |
| /* { PCI_VENDOR_ID_ADLINK, 0x6208, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, */ |
| /* { PCI_VENDOR_ID_ADLINK, 0x6208, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, */ |
| { PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x6208) }, |
| { 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 = __devexit_p(adl_pci6208_pci_remove), |
| }; |
| 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"); |