/drivers/staging/comedi/drivers/pcl730.c
C | 183 lines | 131 code | 32 blank | 20 comment | 10 complexity | 06194e98d29da2066477768c890ad9f1 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
- /*
- * 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),
- };
- static int __init driver_pcl730_init_module(void)
- {
- return comedi_driver_register(&driver_pcl730);
- }
- static void __exit driver_pcl730_cleanup_module(void)
- {
- comedi_driver_unregister(&driver_pcl730);
- }
- module_init(driver_pcl730_init_module);
- module_exit(driver_pcl730_cleanup_module);
- 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(KERN_INFO "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(KERN_INFO "\n");
- return 0;
- }
- static int pcl730_detach(struct comedi_device *dev)
- {
- printk(KERN_INFO "comedi%d: pcl730: remove\n", dev->minor);
- if (dev->iobase)
- release_region(dev->iobase, this_board->io_range);
- return 0;
- }
- MODULE_AUTHOR("Comedi http://www.comedi.org");
- MODULE_DESCRIPTION("Comedi low-level driver");
- MODULE_LICENSE("GPL");