| /* |
| * comedi/drivers/acl7225b.c |
| * Driver for Adlink NuDAQ ACL-7225b and clones |
| * José Luis Sánchez |
| */ |
| /* |
| Driver: acl7225b |
| Description: Adlink NuDAQ ACL-7225b & compatibles |
| Author: José Luis Sánchez (jsanchezv@teleline.es) |
| Status: testing |
| Devices: [Adlink] ACL-7225b (acl7225b), [ICP] P16R16DIO (p16r16dio) |
| */ |
| |
| #include "../comedidev.h" |
| |
| #include <linux/ioport.h> |
| |
| #define ACL7225_RIO_LO 0 /* Relays input/output low byte (R0-R7) */ |
| #define ACL7225_RIO_HI 1 /* Relays input/output high byte (R8-R15) */ |
| #define ACL7225_DI_LO 2 /* Digital input low byte (DI0-DI7) */ |
| #define ACL7225_DI_HI 3 /* Digital input high byte (DI8-DI15) */ |
| |
| struct acl7225b_boardinfo { |
| const char *name; |
| int io_range; |
| }; |
| |
| static const struct acl7225b_boardinfo acl7225b_boards[] = { |
| { |
| .name = "acl7225b", |
| .io_range = 8, /* only 4 are used */ |
| }, { |
| .name = "p16r16dio", |
| .io_range = 4, |
| }, |
| }; |
| |
| static int acl7225b_do_insn_bits(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, |
| unsigned int *data) |
| { |
| unsigned long reg = (unsigned long)s->private; |
| unsigned int mask = data[0]; |
| unsigned int bits = data[1]; |
| |
| if (mask) { |
| s->state &= ~mask; |
| s->state |= (bits & mask); |
| |
| if (mask & 0x00ff) |
| outb(s->state & 0xff, dev->iobase + reg); |
| if (mask & 0xff00) |
| outb((s->state >> 8), dev->iobase + reg + 1); |
| } |
| |
| data[1] = s->state; |
| |
| return insn->n; |
| } |
| |
| static int acl7225b_di_insn_bits(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, |
| unsigned int *data) |
| { |
| unsigned long reg = (unsigned long)s->private; |
| |
| data[1] = inb(dev->iobase + reg) | |
| (inb(dev->iobase + reg + 1) << 8); |
| |
| return insn->n; |
| } |
| |
| static int acl7225b_attach(struct comedi_device *dev, |
| struct comedi_devconfig *it) |
| { |
| const struct acl7225b_boardinfo *board = comedi_board(dev); |
| struct comedi_subdevice *s; |
| int ret; |
| |
| ret = comedi_request_region(dev, it->options[0], board->io_range); |
| if (ret) |
| return ret; |
| |
| ret = comedi_alloc_subdevices(dev, 3); |
| if (ret) |
| return ret; |
| |
| s = &dev->subdevices[0]; |
| /* Relays outputs */ |
| s->type = COMEDI_SUBD_DO; |
| s->subdev_flags = SDF_WRITABLE; |
| s->maxdata = 1; |
| s->n_chan = 16; |
| s->insn_bits = acl7225b_do_insn_bits; |
| s->range_table = &range_digital; |
| s->private = (void *)ACL7225_RIO_LO; |
| |
| s = &dev->subdevices[1]; |
| /* Relays status */ |
| s->type = COMEDI_SUBD_DI; |
| s->subdev_flags = SDF_READABLE; |
| s->maxdata = 1; |
| s->n_chan = 16; |
| s->insn_bits = acl7225b_di_insn_bits; |
| s->range_table = &range_digital; |
| s->private = (void *)ACL7225_RIO_LO; |
| |
| s = &dev->subdevices[2]; |
| /* Isolated digital inputs */ |
| s->type = COMEDI_SUBD_DI; |
| s->subdev_flags = SDF_READABLE; |
| s->maxdata = 1; |
| s->n_chan = 16; |
| s->insn_bits = acl7225b_di_insn_bits; |
| s->range_table = &range_digital; |
| s->private = (void *)ACL7225_DI_LO; |
| |
| return 0; |
| } |
| |
| static struct comedi_driver acl7225b_driver = { |
| .driver_name = "acl7225b", |
| .module = THIS_MODULE, |
| .attach = acl7225b_attach, |
| .detach = comedi_legacy_detach, |
| .board_name = &acl7225b_boards[0].name, |
| .num_names = ARRAY_SIZE(acl7225b_boards), |
| .offset = sizeof(struct acl7225b_boardinfo), |
| }; |
| module_comedi_driver(acl7225b_driver); |
| |
| MODULE_DESCRIPTION("Comedi: NuDAQ ACL-7225B, 16 Relay & 16 Isolated DI Card"); |
| MODULE_AUTHOR("Comedi http://www.comedi.org"); |
| MODULE_LICENSE("GPL"); |