Commit | Line | Data |
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bcd62c0b JLS |
1 | /* |
2 | * comedi/drivers/acl7225b.c | |
3 | * Driver for Adlink NuDAQ ACL-7225b and clones | |
4 | * José Luis Sánchez | |
5 | */ | |
6 | /* | |
7 | Driver: acl7225b | |
8 | Description: Adlink NuDAQ ACL-7225b & compatibles | |
9 | Author: José Luis Sánchez (jsanchezv@teleline.es) | |
10 | Status: testing | |
11 | Devices: [Adlink] ACL-7225b (acl7225b), [ICP] P16R16DIO (p16r16dio) | |
12 | */ | |
13 | ||
14 | #include "../comedidev.h" | |
15 | ||
16 | #include <linux/ioport.h> | |
17 | ||
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) */ | |
24 | ||
0a85b6f0 MT |
25 | static int acl7225b_attach(struct comedi_device *dev, |
26 | struct comedi_devconfig *it); | |
71b5f4f1 | 27 | static int acl7225b_detach(struct comedi_device *dev); |
bcd62c0b | 28 | |
502dd079 | 29 | struct boardtype { |
ed276144 BP |
30 | const char *name; /* driver name */ |
31 | int io_range; /* len of I/O space */ | |
502dd079 | 32 | }; |
bcd62c0b | 33 | |
502dd079 | 34 | static const struct boardtype boardtypes[] = { |
bcd62c0b JLS |
35 | {"acl7225b", ACL7225_SIZE,}, |
36 | {"p16r16dio", P16R16DIO_SIZE,}, | |
37 | }; | |
38 | ||
502dd079 BP |
39 | #define n_boardtypes (sizeof(boardtypes)/sizeof(struct boardtype)) |
40 | #define this_board ((const struct boardtype *)dev->board_ptr) | |
bcd62c0b | 41 | |
139dfbdf | 42 | static struct comedi_driver driver_acl7225b = { |
68c3dbff BP |
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), | |
bcd62c0b JLS |
50 | }; |
51 | ||
7114a280 AT |
52 | static int __init driver_acl7225b_init_module(void) |
53 | { | |
54 | return comedi_driver_register(&driver_acl7225b); | |
55 | } | |
56 | ||
57 | static void __exit driver_acl7225b_cleanup_module(void) | |
58 | { | |
59 | comedi_driver_unregister(&driver_acl7225b); | |
60 | } | |
61 | ||
62 | module_init(driver_acl7225b_init_module); | |
63 | module_exit(driver_acl7225b_cleanup_module); | |
bcd62c0b | 64 | |
0a85b6f0 MT |
65 | static int acl7225b_do_insn(struct comedi_device *dev, |
66 | struct comedi_subdevice *s, | |
67 | struct comedi_insn *insn, unsigned int *data) | |
bcd62c0b JLS |
68 | { |
69 | if (insn->n != 2) | |
70 | return -EINVAL; | |
71 | ||
72 | if (data[0]) { | |
73 | s->state &= ~data[0]; | |
74 | s->state |= (data[0] & data[1]); | |
75 | } | |
76 | if (data[0] & 0x00ff) | |
77 | outb(s->state & 0xff, dev->iobase + (unsigned long)s->private); | |
78 | if (data[0] & 0xff00) | |
79 | outb((s->state >> 8), | |
0a85b6f0 | 80 | dev->iobase + (unsigned long)s->private + 1); |
bcd62c0b JLS |
81 | |
82 | data[1] = s->state; | |
83 | ||
84 | return 2; | |
85 | } | |
86 | ||
0a85b6f0 MT |
87 | static int acl7225b_di_insn(struct comedi_device *dev, |
88 | struct comedi_subdevice *s, | |
89 | struct comedi_insn *insn, unsigned int *data) | |
bcd62c0b JLS |
90 | { |
91 | if (insn->n != 2) | |
92 | return -EINVAL; | |
93 | ||
94 | data[1] = inb(dev->iobase + (unsigned long)s->private) | | |
0a85b6f0 | 95 | (inb(dev->iobase + (unsigned long)s->private + 1) << 8); |
bcd62c0b JLS |
96 | |
97 | return 2; | |
98 | } | |
99 | ||
0a85b6f0 MT |
100 | static int acl7225b_attach(struct comedi_device *dev, |
101 | struct comedi_devconfig *it) | |
bcd62c0b | 102 | { |
34c43922 | 103 | struct comedi_subdevice *s; |
bcd62c0b JLS |
104 | int iobase, iorange; |
105 | ||
106 | iobase = it->options[0]; | |
107 | iorange = this_board->io_range; | |
0dfd69bf | 108 | printk(KERN_INFO "comedi%d: acl7225b: board=%s 0x%04x\n", dev->minor, |
0a85b6f0 | 109 | this_board->name, iobase); |
bcd62c0b | 110 | if (!request_region(iobase, iorange, "acl7225b")) { |
0dfd69bf BJ |
111 | printk(KERN_ERR "comedi%d: request_region failed - I/O port conflict\n", |
112 | dev->minor); | |
bcd62c0b JLS |
113 | return -EIO; |
114 | } | |
115 | dev->board_name = this_board->name; | |
116 | dev->iobase = iobase; | |
117 | dev->irq = 0; | |
118 | ||
119 | if (alloc_subdevices(dev, 3) < 0) | |
120 | return -ENOMEM; | |
121 | ||
122 | s = dev->subdevices + 0; | |
123 | /* Relays outputs */ | |
124 | s->type = COMEDI_SUBD_DO; | |
125 | s->subdev_flags = SDF_WRITABLE; | |
126 | s->maxdata = 1; | |
127 | s->n_chan = 16; | |
128 | s->insn_bits = acl7225b_do_insn; | |
129 | s->range_table = &range_digital; | |
130 | s->private = (void *)ACL7225_RIO_LO; | |
131 | ||
132 | s = dev->subdevices + 1; | |
133 | /* Relays status */ | |
134 | s->type = COMEDI_SUBD_DI; | |
135 | s->subdev_flags = SDF_READABLE; | |
136 | s->maxdata = 1; | |
137 | s->n_chan = 16; | |
138 | s->insn_bits = acl7225b_di_insn; | |
139 | s->range_table = &range_digital; | |
140 | s->private = (void *)ACL7225_RIO_LO; | |
141 | ||
142 | s = dev->subdevices + 2; | |
143 | /* Isolated digital inputs */ | |
144 | s->type = COMEDI_SUBD_DI; | |
145 | s->subdev_flags = SDF_READABLE; | |
146 | s->maxdata = 1; | |
147 | s->n_chan = 16; | |
148 | s->insn_bits = acl7225b_di_insn; | |
149 | s->range_table = &range_digital; | |
150 | s->private = (void *)ACL7225_DI_LO; | |
151 | ||
bcd62c0b JLS |
152 | return 0; |
153 | } | |
154 | ||
71b5f4f1 | 155 | static int acl7225b_detach(struct comedi_device *dev) |
bcd62c0b | 156 | { |
0dfd69bf | 157 | printk(KERN_INFO "comedi%d: acl7225b: remove\n", dev->minor); |
bcd62c0b JLS |
158 | |
159 | if (dev->iobase) | |
160 | release_region(dev->iobase, this_board->io_range); | |
161 | ||
162 | return 0; | |
163 | } | |
90f703d3 AT |
164 | |
165 | MODULE_AUTHOR("Comedi http://www.comedi.org"); | |
166 | MODULE_DESCRIPTION("Comedi low-level driver"); | |
167 | MODULE_LICENSE("GPL"); |