--- /dev/null
+/*
+ module/pcl724.c
+
+ Michal Dobes <majkl@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
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/malloc.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/timex.h>
+#include <linux/timer.h>
+#include <asm/io.h>
+#include <comedi_module.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(comedi_device *dev,comedi_devconfig *it);
+static int pcl724_detach(comedi_device *dev);
+static int pcl724_recognize(char *name);
+
+comedi_driver driver_pcl724={
+ driver_name: "pcl724",
+ module: THIS_MODULE,
+ attach: pcl724_attach,
+ detach: pcl724_detach,
+ recognize: pcl724_recognize,
+};
+
+typedef struct {
+ char *name; // driver name
+ int dio; // num of DIO
+ int numofports; // num of 8255 subdevices
+ unsigned int IRQbits; // allowed interrupts
+ int io_range; // len of IO space
+ char can_have96;
+ char is_pet48;
+} boardtype;
+
+static boardtype 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(boardtype))
+
+static int subdev_8255_cb(int dir,int port,int data,void *arg)
+{
+ int iobase=(int)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,void *arg)
+{
+ int iobase=(int)arg;
+ 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(comedi_device *dev,comedi_devconfig *it)
+{
+ int board,iobase,iorange;
+ int ret,i;
+
+ board=dev->board;
+
+ iobase=it->options[0];
+ iorange=boardtypes[board].io_range;
+ if ((boardtypes[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%03x ",dev->minor,boardtypes[board].name,iobase);
+ if(check_region(iobase,iorange)<0){
+ printk("I/O port conflict\n");
+ return -EIO;
+ }
+
+ request_region(iobase, iorange, "pcl724");
+ dev->iobase=iobase;
+ dev->iosize=iorange;
+
+ dev->board_name = boardtypes[board].name;
+
+#ifdef PCL724_IRQ
+ irq=0;
+ if (boardtypes[board].IRQbits!=0) { /* board support IRQ */
+ irq=it->options[1];
+ if (irq>0) {/* we want to use IRQ */
+ if (((1<<irq)&boardtypes[board].IRQbits)==0) {
+ rt_printk(", IRQ %d is out of allowed range, DISABLING IT",irq);
+ irq=0; /* Bad IRQ */
+ } else {
+ if (request_irq(irq, interrupt_pcl724, SA_INTERRUPT, "pcl724", dev)) {
+ rt_printk(", unable to allocate IRQ %d, DISABLING IT", irq);
+ irq=0; /* Can't use IRQ */
+ } else {
+ rt_printk(", irq=%d", irq);
+ }
+ }
+ }
+ }
+
+ dev->irq = irq;
+#endif
+
+ printk("\n");
+
+ dev->n_subdevices=boardtypes[board].numofports;
+ if ((boardtypes[board].can_have96)&&((it->options[1]==1)||(it->options[1]==96)))
+ dev->n_subdevices=4; // PCL-724 in 96 DIO configuration
+
+
+ if((ret=alloc_subdevices(dev))<0)
+ return ret;
+
+ for(i=0;i<dev->n_subdevices;i++){
+ if (boardtypes[board].is_pet48) {
+ subdev_8255_init(dev,dev->subdevices+i,
+ subdev_8255mapped_cb,(void *)(dev->iobase+i*0x1000));
+ } else
+ subdev_8255_init(dev,dev->subdevices+i,
+ subdev_8255_cb,(void *)(dev->iobase+SIZE_8255*i));
+ };
+
+ return 0;
+}
+
+
+static int pcl724_detach(comedi_device *dev)
+{
+// printk("comedi%d: pcl724: remove\n",dev->minor);
+
+#ifdef PCL724_IRQ
+ if(dev->irq){
+ free_irq(dev->irq,dev);
+ }
+#endif
+
+ release_region(dev->iobase,dev->iosize);
+
+ return 0;
+}
+
+static int pcl724_recognize(char *name)
+{
+ int i;
+
+ for (i = 0; i < n_boardtypes; i++) {
+ if (!strcmp(boardtypes[i].name, name)) {
+ return i;
+ }
+ }
+
+ return -1;
+}
+
+
+
+#ifdef MODULE
+int init_module(void)
+{
+ comedi_driver_register(&driver_pcl724);
+
+ return 0;
+}
+
+void cleanup_module(void)
+{
+ comedi_driver_unregister(&driver_pcl724);
+}
+#endif
projects / comedi.git / commitdiff