--- /dev/null
+/*
+ comedi/drivers/pcl724.c
+
+ Michal Dobes <dobes@tesnet.cz>
+
+ hardware driver for Advantech cards:
+ card: PCL-724, PCL-722, PCL-731
+ driver: pcl724, pcl722, pcl731
+ and ADLink cards:
+ card: ACL-7122, ACL-7124, PET-48DIO
+ driver: acl7122, acl7124, pet48dio
+
+ Options for PCL-724, PCL-731, ACL-7124 and PET-48DIO:
+ [0] - IO Base
+
+ Options for PCL-722 and ACL-7122:
+ [0] - IO Base
+ [1] - IRQ (0=disable IRQ) IRQ isn't supported at this time!
+ [2] -number of DIO:
+ 0, 144: 144 DIO configuration
+ 1, 96: 96 DIO configuration
+*/
+/*
+Driver: pcl724
+Description: Advantech PCL-724, PCL-722, PCL-731 ADLink ACL-7122, ACL-7124,
+ PET-48DIO
+Author: Michal Dobes <dobes@tesnet.cz>
+Devices: [Advantech] PCL-724 (pcl724), PCL-722 (pcl722), PCL-731 (pcl731),
+ [ADLink] ACL-7122 (acl7122), ACL-7124 (acl7124), PET-48DIO (pet48dio)
+Status: untested
+
+This is driver for digital I/O boards PCL-722/724/731 with 144/24/48 DIO
+and for digital I/O boards ACL-7122/7124/PET-48DIO with 144/24/48 DIO.
+It need 8255.o for operations and only immediate mode is supported.
+See the source for configuration details.
+*/
+/*
+ * check_driver overrides:
+ * struct comedi_insn
+ */
+
+#include "../comedidev.h"
+
+#include <linux/ioport.h>
+#include <linux/delay.h>
+
+#include "8255.h"
+
+#define PCL722_SIZE 32
+#define PCL722_96_SIZE 16
+#define PCL724_SIZE 4
+#define PCL731_SIZE 8
+#define PET48_SIZE 2
+
+#define SIZE_8255 4
+
+// #define PCL724_IRQ 1 /* no IRQ support now */
+
+static int pcl724_attach(struct comedi_device * dev, struct comedi_devconfig * it);
+static int pcl724_detach(struct comedi_device * dev);
+
+struct pcl724_board {
+
+ const char *name; // board name
+ int dio; // num of DIO
+ int numofports; // num of 8255 subdevices
+ unsigned int IRQbits; // allowed interrupts
+ unsigned int io_range; // len of IO space
+ char can_have96;
+ char is_pet48;
+};
+
+
+static const struct pcl724_board boardtypes[] = {
+ {"pcl724", 24, 1, 0x00fc, PCL724_SIZE, 0, 0,},
+ {"pcl722", 144, 6, 0x00fc, PCL722_SIZE, 1, 0,},
+ {"pcl731", 48, 2, 0x9cfc, PCL731_SIZE, 0, 0,},
+ {"acl7122", 144, 6, 0x9ee8, PCL722_SIZE, 1, 0,},
+ {"acl7124", 24, 1, 0x00fc, PCL724_SIZE, 0, 0,},
+ {"pet48dio", 48, 2, 0x9eb8, PET48_SIZE, 0, 1,},
+};
+
+#define n_boardtypes (sizeof(boardtypes)/sizeof(struct pcl724_board))
+#define this_board ((const struct pcl724_board *)dev->board_ptr)
+
+static struct comedi_driver driver_pcl724 = {
+ driver_name:"pcl724",
+ module:THIS_MODULE,
+ attach:pcl724_attach,
+ detach:pcl724_detach,
+ board_name:&boardtypes[0].name,
+ num_names:n_boardtypes,
+ offset:sizeof(struct pcl724_board),
+};
+
+COMEDI_INITCLEANUP(driver_pcl724);
+
+static int subdev_8255_cb(int dir, int port, int data, unsigned long arg)
+{
+ unsigned long iobase = arg;
+
+ if (dir) {
+ outb(data, iobase + port);
+ return 0;
+ } else {
+ return inb(iobase + port);
+ }
+}
+
+static int subdev_8255mapped_cb(int dir, int port, int data,
+ unsigned long iobase)
+{
+ int movport = SIZE_8255 * (iobase >> 12);
+
+ iobase &= 0x0fff;
+
+ if (dir) {
+ outb(port + movport, iobase);
+ outb(data, iobase + 1);
+ return 0;
+ } else {
+ outb(port + movport, iobase);
+ return inb(iobase + 1);
+ }
+}
+
+static int pcl724_attach(struct comedi_device * dev, struct comedi_devconfig * it)
+{
+ unsigned long iobase;
+ unsigned int iorange;
+ int ret, i, n_subdevices;
+#ifdef PCL724_IRQ
+ unsigned int irq;
+#endif
+
+ iobase = it->options[0];
+ iorange = this_board->io_range;
+ if ((this_board->can_have96) && ((it->options[1] == 1)
+ || (it->options[1] == 96)))
+ iorange = PCL722_96_SIZE; // PCL-724 in 96 DIO configuration
+ printk("comedi%d: pcl724: board=%s, 0x%03lx ", dev->minor,
+ this_board->name, iobase);
+ if (!request_region(iobase, iorange, "pcl724")) {
+ printk("I/O port conflict\n");
+ return -EIO;
+ }
+
+ dev->iobase = iobase;
+
+ dev->board_name = this_board->name;
+
+#ifdef PCL724_IRQ
+ irq = 0;
+ if (this_board->IRQbits != 0) { /* board support IRQ */
+ irq = it->options[1];
+ if (irq) { /* we want to use IRQ */
+ if (((1 << irq) & this_board->IRQbits) == 0) {
+ rt_printk
+ (", IRQ %u is out of allowed range, DISABLING IT",
+ irq);
+ irq = 0; /* Bad IRQ */
+ } else {
+ if (comedi_request_irq(irq, interrupt_pcl724, 0,
+ "pcl724", dev)) {
+ rt_printk
+ (", unable to allocate IRQ %u, DISABLING IT",
+ irq);
+ irq = 0; /* Can't use IRQ */
+ } else {
+ rt_printk(", irq=%u", irq);
+ }
+ }
+ }
+ }
+
+ dev->irq = irq;
+#endif
+
+ printk("\n");
+
+ n_subdevices = this_board->numofports;
+ if ((this_board->can_have96) && ((it->options[1] == 1)
+ || (it->options[1] == 96)))
+ n_subdevices = 4; // PCL-724 in 96 DIO configuration
+
+ if ((ret = alloc_subdevices(dev, n_subdevices)) < 0)
+ return ret;
+
+ for (i = 0; i < dev->n_subdevices; i++) {
+ if (this_board->is_pet48) {
+ subdev_8255_init(dev, dev->subdevices + i,
+ subdev_8255mapped_cb,
+ (unsigned long)(dev->iobase + i * 0x1000));
+ } else
+ subdev_8255_init(dev, dev->subdevices + i,
+ subdev_8255_cb,
+ (unsigned long)(dev->iobase + SIZE_8255 * i));
+ };
+
+ return 0;
+}
+
+static int pcl724_detach(struct comedi_device * dev)
+{
+ int i;
+
+// printk("comedi%d: pcl724: remove\n",dev->minor);
+
+ for (i = 0; i < dev->n_subdevices; i++) {
+ subdev_8255_cleanup(dev, dev->subdevices + i);
+ }
+
+#ifdef PCL724_IRQ
+ if (dev->irq) {
+ comedi_free_irq(dev->irq, dev);
+ }
+#endif
+
+ release_region(dev->iobase, this_board->io_range);
+
+ return 0;
+}
projects / linux-2.6-omap-h63xx.git / blobdiff