2 comedi/drivers/pcl724.c
4 Michal Dobes <dobes@tesnet.cz>
6 hardware driver for Advantech cards:
7 card: PCL-724, PCL-722, PCL-731
8 driver: pcl724, pcl722, pcl731
10 card: ACL-7122, ACL-7124, PET-48DIO
11 driver: acl7122, acl7124, pet48dio
13 Options for PCL-724, PCL-731, ACL-7124 and PET-48DIO:
16 Options for PCL-722 and ACL-7122:
18 [1] - IRQ (0=disable IRQ) IRQ isn't supported at this time!
20 0, 144: 144 DIO configuration
21 1, 96: 96 DIO configuration
25 Description: Advantech PCL-724, PCL-722, PCL-731 ADLink ACL-7122, ACL-7124,
27 Author: Michal Dobes <dobes@tesnet.cz>
28 Devices: [Advantech] PCL-724 (pcl724), PCL-722 (pcl722), PCL-731 (pcl731),
29 [ADLink] ACL-7122 (acl7122), ACL-7124 (acl7124), PET-48DIO (pet48dio)
32 This is driver for digital I/O boards PCL-722/724/731 with 144/24/48 DIO
33 and for digital I/O boards ACL-7122/7124/PET-48DIO with 144/24/48 DIO.
34 It need 8255.o for operations and only immediate mode is supported.
35 See the source for configuration details.
38 * check_driver overrides:
42 #include "../comedidev.h"
44 #include <linux/ioport.h>
45 #include <linux/delay.h>
49 #define PCL722_SIZE 32
50 #define PCL722_96_SIZE 16
57 // #define PCL724_IRQ 1 /* no IRQ support now */
59 static int pcl724_attach(struct comedi_device * dev, struct comedi_devconfig * it);
60 static int pcl724_detach(struct comedi_device * dev);
64 const char *name; // board name
65 int dio; // num of DIO
66 int numofports; // num of 8255 subdevices
67 unsigned int IRQbits; // allowed interrupts
68 unsigned int io_range; // len of IO space
74 static const struct pcl724_board boardtypes[] = {
75 {"pcl724", 24, 1, 0x00fc, PCL724_SIZE, 0, 0,},
76 {"pcl722", 144, 6, 0x00fc, PCL722_SIZE, 1, 0,},
77 {"pcl731", 48, 2, 0x9cfc, PCL731_SIZE, 0, 0,},
78 {"acl7122", 144, 6, 0x9ee8, PCL722_SIZE, 1, 0,},
79 {"acl7124", 24, 1, 0x00fc, PCL724_SIZE, 0, 0,},
80 {"pet48dio", 48, 2, 0x9eb8, PET48_SIZE, 0, 1,},
83 #define n_boardtypes (sizeof(boardtypes)/sizeof(struct pcl724_board))
84 #define this_board ((const struct pcl724_board *)dev->board_ptr)
86 static struct comedi_driver driver_pcl724 = {
91 board_name:&boardtypes[0].name,
92 num_names:n_boardtypes,
93 offset:sizeof(struct pcl724_board),
96 COMEDI_INITCLEANUP(driver_pcl724);
98 static int subdev_8255_cb(int dir, int port, int data, unsigned long arg)
100 unsigned long iobase = arg;
103 outb(data, iobase + port);
106 return inb(iobase + port);
110 static int subdev_8255mapped_cb(int dir, int port, int data,
111 unsigned long iobase)
113 int movport = SIZE_8255 * (iobase >> 12);
118 outb(port + movport, iobase);
119 outb(data, iobase + 1);
122 outb(port + movport, iobase);
123 return inb(iobase + 1);
127 static int pcl724_attach(struct comedi_device * dev, struct comedi_devconfig * it)
129 unsigned long iobase;
130 unsigned int iorange;
131 int ret, i, n_subdevices;
136 iobase = it->options[0];
137 iorange = this_board->io_range;
138 if ((this_board->can_have96) && ((it->options[1] == 1)
139 || (it->options[1] == 96)))
140 iorange = PCL722_96_SIZE; // PCL-724 in 96 DIO configuration
141 printk("comedi%d: pcl724: board=%s, 0x%03lx ", dev->minor,
142 this_board->name, iobase);
143 if (!request_region(iobase, iorange, "pcl724")) {
144 printk("I/O port conflict\n");
148 dev->iobase = iobase;
150 dev->board_name = this_board->name;
154 if (this_board->IRQbits != 0) { /* board support IRQ */
155 irq = it->options[1];
156 if (irq) { /* we want to use IRQ */
157 if (((1 << irq) & this_board->IRQbits) == 0) {
159 (", IRQ %u is out of allowed range, DISABLING IT",
161 irq = 0; /* Bad IRQ */
163 if (comedi_request_irq(irq, interrupt_pcl724, 0,
166 (", unable to allocate IRQ %u, DISABLING IT",
168 irq = 0; /* Can't use IRQ */
170 rt_printk(", irq=%u", irq);
181 n_subdevices = this_board->numofports;
182 if ((this_board->can_have96) && ((it->options[1] == 1)
183 || (it->options[1] == 96)))
184 n_subdevices = 4; // PCL-724 in 96 DIO configuration
186 if ((ret = alloc_subdevices(dev, n_subdevices)) < 0)
189 for (i = 0; i < dev->n_subdevices; i++) {
190 if (this_board->is_pet48) {
191 subdev_8255_init(dev, dev->subdevices + i,
192 subdev_8255mapped_cb,
193 (unsigned long)(dev->iobase + i * 0x1000));
195 subdev_8255_init(dev, dev->subdevices + i,
197 (unsigned long)(dev->iobase + SIZE_8255 * i));
203 static int pcl724_detach(struct comedi_device * dev)
207 // printk("comedi%d: pcl724: remove\n",dev->minor);
209 for (i = 0; i < dev->n_subdevices; i++) {
210 subdev_8255_cleanup(dev, dev->subdevices + i);
215 comedi_free_irq(dev->irq, dev);
219 release_region(dev->iobase, this_board->io_range);