2 * comedi/drivers/acl7225b.c
3 * Driver for Adlink NuDAQ ACL-7225b and clones
8 Description: Adlink NuDAQ ACL-7225b & compatibles
9 Author: José Luis Sánchez (jsanchezv@teleline.es)
11 Devices: [Adlink] ACL-7225b (acl7225b), [ICP] P16R16DIO (p16r16dio)
14 #include "../comedidev.h"
16 #include <linux/ioport.h>
18 #define ACL7225_SIZE 8 /* Requires 8 ioports, but only 4 are used */
19 #define P16R16DIO_SIZE 4
20 #define ACL7225_RIO_LO 0 /* Relays input/output low byte (R0-R7) */
21 #define ACL7225_RIO_HI 1 /* Relays input/output high byte (R8-R15) */
22 #define ACL7225_DI_LO 2 /* Digital input low byte (DI0-DI7) */
23 #define ACL7225_DI_HI 3 /* Digital input high byte (DI8-DI15) */
25 static int acl7225b_attach(struct comedi_device *dev,
26 struct comedi_devconfig *it);
27 static int acl7225b_detach(struct comedi_device *dev);
30 const char *name; /* driver name */
31 int io_range; /* len of I/O space */
34 static const struct boardtype boardtypes[] = {
35 {"acl7225b", ACL7225_SIZE,},
36 {"p16r16dio", P16R16DIO_SIZE,},
39 #define n_boardtypes (sizeof(boardtypes)/sizeof(struct boardtype))
40 #define this_board ((const struct boardtype *)dev->board_ptr)
42 static struct comedi_driver driver_acl7225b = {
43 .driver_name = "acl7225b",
44 .module = THIS_MODULE,
45 .attach = acl7225b_attach,
46 .detach = acl7225b_detach,
47 .board_name = &boardtypes[0].name,
48 .num_names = n_boardtypes,
49 .offset = sizeof(struct boardtype),
52 COMEDI_INITCLEANUP(driver_acl7225b);
54 static int acl7225b_do_insn(struct comedi_device *dev,
55 struct comedi_subdevice *s,
56 struct comedi_insn *insn, unsigned int *data)
63 s->state |= (data[0] & data[1]);
66 outb(s->state & 0xff, dev->iobase + (unsigned long)s->private);
69 dev->iobase + (unsigned long)s->private + 1);
76 static int acl7225b_di_insn(struct comedi_device *dev,
77 struct comedi_subdevice *s,
78 struct comedi_insn *insn, unsigned int *data)
83 data[1] = inb(dev->iobase + (unsigned long)s->private) |
84 (inb(dev->iobase + (unsigned long)s->private + 1) << 8);
89 static int acl7225b_attach(struct comedi_device *dev,
90 struct comedi_devconfig *it)
92 struct comedi_subdevice *s;
95 iobase = it->options[0];
96 iorange = this_board->io_range;
97 printk(KERN_INFO "comedi%d: acl7225b: board=%s 0x%04x\n", dev->minor,
98 this_board->name, iobase);
99 if (!request_region(iobase, iorange, "acl7225b")) {
100 printk(KERN_ERR "comedi%d: request_region failed - I/O port conflict\n",
104 dev->board_name = this_board->name;
105 dev->iobase = iobase;
108 if (alloc_subdevices(dev, 3) < 0)
111 s = dev->subdevices + 0;
113 s->type = COMEDI_SUBD_DO;
114 s->subdev_flags = SDF_WRITABLE;
117 s->insn_bits = acl7225b_do_insn;
118 s->range_table = &range_digital;
119 s->private = (void *)ACL7225_RIO_LO;
121 s = dev->subdevices + 1;
123 s->type = COMEDI_SUBD_DI;
124 s->subdev_flags = SDF_READABLE;
127 s->insn_bits = acl7225b_di_insn;
128 s->range_table = &range_digital;
129 s->private = (void *)ACL7225_RIO_LO;
131 s = dev->subdevices + 2;
132 /* Isolated digital inputs */
133 s->type = COMEDI_SUBD_DI;
134 s->subdev_flags = SDF_READABLE;
137 s->insn_bits = acl7225b_di_insn;
138 s->range_table = &range_digital;
139 s->private = (void *)ACL7225_DI_LO;
144 static int acl7225b_detach(struct comedi_device *dev)
146 printk(KERN_INFO "comedi%d: acl7225b: remove\n", dev->minor);
149 release_region(dev->iobase, this_board->io_range);