112 lines
2.5 KiB
C
112 lines
2.5 KiB
C
/*
|
|
* ----------------------------------------------------------------------------
|
|
* "THE BEER-WARE LICENSE" (Revision 42):
|
|
* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
|
|
* can do whatever you want with this stuff. If we meet some day, and you think
|
|
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* $Id: xrpu.c,v 1.1 1998/05/30 18:28:11 phk Exp $
|
|
*
|
|
* A very simple device driver for PCI cards based on Xilinx 6200 series
|
|
* FPGA/RPU devices. Current Functionality is to allow you to open and
|
|
* mmap the entire thing into your program.
|
|
*
|
|
* Hardware currently supported:
|
|
* www.vcc.com HotWorks 1 6216 based card.
|
|
*
|
|
*/
|
|
|
|
#ifndef DEVFS
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/devfsext.h>
|
|
#include <pci/pcireg.h>
|
|
#include <pci/pcivar.h>
|
|
|
|
static char* xrpu_probe (pcici_t tag, pcidi_t type);
|
|
static void xrpu_attach (pcici_t tag, int unit);
|
|
static u_long xrpu_count;
|
|
|
|
static vm_offset_t virbase, physbase;
|
|
|
|
static int
|
|
xrpuopen(dev_t dev, int flag, int mode, struct proc *p)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
xrpuclose(dev_t dev, int flag, int mode, struct proc *p)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
xrpummap(dev_t dev, int offset, int nprot)
|
|
{
|
|
if (offset >= 0x1000000)
|
|
return (-1);
|
|
return (i386_btop(physbase + offset));
|
|
}
|
|
|
|
/*
|
|
* Device driver initialization stuff
|
|
*/
|
|
|
|
#define CDEV_MAJOR 100
|
|
static struct cdevsw xrpudevsw = {
|
|
xrpuopen, xrpuclose, noread, nowrite,
|
|
noioctl, nullstop, noreset, nodevtotty,
|
|
seltrue, xrpummap, nostrategy, "xrpu",
|
|
NULL, -1
|
|
};
|
|
|
|
/*
|
|
* PCI initialization stuff
|
|
*/
|
|
|
|
static struct pci_device xrpu_device = {
|
|
"xrpu",
|
|
xrpu_probe,
|
|
xrpu_attach,
|
|
&xrpu_count,
|
|
NULL
|
|
};
|
|
|
|
DATA_SET (pcidevice_set, xrpu_device);
|
|
|
|
static char*
|
|
xrpu_probe (pcici_t tag, pcidi_t typea)
|
|
{
|
|
int data = pci_conf_read(tag, PCI_CLASS_REG);
|
|
u_int id = pci_conf_read(tag, PCI_ID_REG);
|
|
const char *vendor, *chip, *type;
|
|
|
|
vendor = chip = type = 0;
|
|
|
|
if (id == 0x6216133e) {
|
|
return "VCC Hotworks-I xc6216";
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
xrpu_attach (pcici_t tag, int unit)
|
|
{
|
|
dev_t cdev = makedev(CDEV_MAJOR, 0);
|
|
|
|
pci_map_mem(tag, PCI_MAP_REG_START, &virbase, &physbase);
|
|
|
|
printf("Mapped physbase %#lx to virbase %#lx\n",
|
|
(u_long)physbase, (u_long)virbase);
|
|
|
|
cdevsw_add(&cdev, &xrpudevsw, NULL);
|
|
|
|
devfs_add_devswf(&xrpudevsw, 0, DV_CHR, UID_ROOT, GID_WHEEL, 0600,
|
|
"xrpu0");
|
|
}
|
|
#endif /* DEVFS */
|