diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/pcl730.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/pcl730.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/pcl730.c b/drivers/staging/comedi/drivers/pcl730.c new file mode 100644 index 000000000000..f2c6d7c5693c --- /dev/null +++ b/drivers/staging/comedi/drivers/pcl730.c @@ -0,0 +1,168 @@ +/* + * comedi/drivers/pcl730.c + * Driver for Advantech PCL-730 and clones + * José Luis Sánchez + */ +/* +Driver: pcl730 +Description: Advantech PCL-730 (& compatibles) +Author: José Luis Sánchez (jsanchezv@teleline.es) +Status: untested +Devices: [Advantech] PCL-730 (pcl730), [ICP] ISO-730 (iso730), + [Adlink] ACL-7130 (acl7130) + +Interrupts are not supported. +The ACL-7130 card have an 8254 timer/counter not supported by this driver. +*/ + +#include "../comedidev.h" + +#include <linux/ioport.h> + +#define PCL730_SIZE 4 +#define ACL7130_SIZE 8 +#define PCL730_IDIO_LO 0 /* Isolated Digital I/O low byte (ID0-ID7) */ +#define PCL730_IDIO_HI 1 /* Isolated Digital I/O high byte (ID8-ID15) */ +#define PCL730_DIO_LO 2 /* TTL Digital I/O low byte (D0-D7) */ +#define PCL730_DIO_HI 3 /* TTL Digital I/O high byte (D8-D15) */ + +static int pcl730_attach(struct comedi_device * dev, struct comedi_devconfig * it); +static int pcl730_detach(struct comedi_device * dev); + +struct pcl730_board { + + const char *name; // board name + unsigned int io_range; // len of I/O space +}; + + +static const struct pcl730_board boardtypes[] = { + {"pcl730", PCL730_SIZE,}, + {"iso730", PCL730_SIZE,}, + {"acl7130", ACL7130_SIZE,}, +}; + +#define n_boardtypes (sizeof(boardtypes)/sizeof(struct pcl730_board)) +#define this_board ((const struct pcl730_board *)dev->board_ptr) + +static struct comedi_driver driver_pcl730 = { + driver_name:"pcl730", + module:THIS_MODULE, + attach:pcl730_attach, + detach:pcl730_detach, + board_name:&boardtypes[0].name, + num_names:n_boardtypes, + offset:sizeof(struct pcl730_board), +}; + +COMEDI_INITCLEANUP(driver_pcl730); + +static int pcl730_do_insn(struct comedi_device * dev, struct comedi_subdevice * s, + struct comedi_insn * insn, unsigned int * data) +{ + if (insn->n != 2) + return -EINVAL; + + if (data[0]) { + s->state &= ~data[0]; + s->state |= (data[0] & data[1]); + } + if (data[0] & 0x00ff) + outb(s->state & 0xff, + dev->iobase + ((unsigned long)s->private)); + if (data[0] & 0xff00) + outb((s->state >> 8), + dev->iobase + ((unsigned long)s->private) + 1); + + data[1] = s->state; + + return 2; +} + +static int pcl730_di_insn(struct comedi_device * dev, struct comedi_subdevice * s, + struct comedi_insn * insn, unsigned int * data) +{ + if (insn->n != 2) + return -EINVAL; + + data[1] = inb(dev->iobase + ((unsigned long)s->private)) | + (inb(dev->iobase + ((unsigned long)s->private) + 1) << 8); + + return 2; +} + +static int pcl730_attach(struct comedi_device * dev, struct comedi_devconfig * it) +{ + struct comedi_subdevice *s; + unsigned long iobase; + unsigned int iorange; + + iobase = it->options[0]; + iorange = this_board->io_range; + printk("comedi%d: pcl730: board=%s 0x%04lx ", dev->minor, + this_board->name, iobase); + if (!request_region(iobase, iorange, "pcl730")) { + printk("I/O port conflict\n"); + return -EIO; + } + dev->board_name = this_board->name; + dev->iobase = iobase; + dev->irq = 0; + + if (alloc_subdevices(dev, 4) < 0) + return -ENOMEM; + + s = dev->subdevices + 0; + /* Isolated do */ + s->type = COMEDI_SUBD_DO; + s->subdev_flags = SDF_WRITABLE; + s->maxdata = 1; + s->n_chan = 16; + s->insn_bits = pcl730_do_insn; + s->range_table = &range_digital; + s->private = (void *)PCL730_IDIO_LO; + + s = dev->subdevices + 1; + /* Isolated di */ + s->type = COMEDI_SUBD_DI; + s->subdev_flags = SDF_READABLE; + s->maxdata = 1; + s->n_chan = 16; + s->insn_bits = pcl730_di_insn; + s->range_table = &range_digital; + s->private = (void *)PCL730_IDIO_LO; + + s = dev->subdevices + 2; + /* TTL do */ + s->type = COMEDI_SUBD_DO; + s->subdev_flags = SDF_WRITABLE; + s->maxdata = 1; + s->n_chan = 16; + s->insn_bits = pcl730_do_insn; + s->range_table = &range_digital; + s->private = (void *)PCL730_DIO_LO; + + s = dev->subdevices + 3; + /* TTL di */ + s->type = COMEDI_SUBD_DI; + s->subdev_flags = SDF_READABLE; + s->maxdata = 1; + s->n_chan = 16; + s->insn_bits = pcl730_di_insn; + s->range_table = &range_digital; + s->private = (void *)PCL730_DIO_LO; + + printk("\n"); + + return 0; +} + +static int pcl730_detach(struct comedi_device * dev) +{ + printk("comedi%d: pcl730: remove\n", dev->minor); + + if (dev->iobase) + release_region(dev->iobase, this_board->io_range); + + return 0; +} |