blob: a96fac42a3a021d650869301bf2ca6816ad7d28c [file] [log] [blame]
/*
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;
}
/* DIO devices are slightly special. Although it is possible to
* implement the insn_read/insn_write interface, it is much more
* useful to applications if you implement the insn_bits interface.
* This allows packed reading/writing of the DIO channels. The
* comedi core can convert between insn_bits and insn_read/write */
/* static int pci6208_dio_insn_bits(struct comedi_device *dev,
* struct comedi_subdevice *s, */
/* struct comedi_insn *insn,unsigned int *data) */
/* { */
/* The insn data is a mask in data[0] and the new data
* in data[1], each channel cooresponding to a bit. */
/* if(data[0]){ */
/* s->state &= ~data[0]; */
/* s->state |= data[0]&data[1]; */
/* Write out the new digital output lines */
/* outw(s->state,dev->iobase + SKEL_DIO); */
/* } */
/* on return, data[1] contains the value of the digital
* input and output lines. */
/* data[1]=inw(dev->iobase + SKEL_DIO); */
/* or we could just return the software copy of the output values if
* it was a purely digital output subdevice */
/* 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); */
/* The input or output configuration of each digital line is
* configured by a special insn_config instruction. chanspec
* contains the channel to be changed, and data[0] contains the
* value COMEDI_INPUT or COMEDI_OUTPUT. */
/* if(data[0]==COMEDI_OUTPUT){ */
/* s->io_bits |= 1<<chan; */
/* }else{ */
/* s->io_bits &= ~(1<<chan); */
/* } */
/* outw(s->io_bits,dev->iobase + SKEL_DIO_CONFIG); */
/* return 1; */
/* } */
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_pci_setup(struct pci_dev *pci_dev, unsigned long *io_base_ptr,
int dev_minor)
{
unsigned long io_base;
/* Enable PCI device and request regions */
if (comedi_pci_enable(pci_dev, "adl_pci6208") < 0) {
printk(KERN_ERR "comedi%d: Failed to enable PCI device "
"and request regions\n",
dev_minor);
return -EIO;
}
/* Read PCI6208 register base address [PCI_BASE_ADDRESS #2]. */
io_base = pci_resource_start(pci_dev, 2);
*io_base_ptr = io_base;
return 0;
}
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 retval;
unsigned long io_base;
printk(KERN_INFO "comedi%d: pci6208: ", dev->minor);
retval = alloc_private(dev, sizeof(*devpriv));
if (retval < 0)
return retval;
devpriv = dev->private;
devpriv->pci_dev = pci6208_find_device(dev, it);
if (!devpriv->pci_dev)
return -EIO;
thisboard = comedi_board(dev);
retval = pci6208_pci_setup(devpriv->pci_dev, &io_base, dev->minor);
if (retval < 0)
return retval;
dev->iobase = io_base;
dev->board_name = thisboard->name;
retval = comedi_alloc_subdevices(dev, 2);
if (retval)
return retval;
s = dev->subdevices + 0;
/* analog output subdevice */
s->type = COMEDI_SUBD_AO;
s->subdev_flags = SDF_WRITABLE; /* anything else to add here?? */
s->n_chan = thisboard->ao_chans;
s->maxdata = 0xffff; /* 16-bit DAC */
s->range_table = &range_bipolar10; /* this needs to be checked. */
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=16; */
/* s->maxdata=1; */
/* s->range_table=&range_digital; */
/* s->insn_bits = pci6208_dio_insn_bits; */
/* s->insn_config = pci6208_dio_insn_config; */
printk(KERN_INFO "attached\n");
return 1;
}
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");