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/*
* Mach Operating System
* Copyright (c) 1993,1992,1991,1990,1989 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
#include <kern/printf.h>
#include <mach/std_types.h>
#include <i386/pic.h>
#include <i386/ipl.h>
#include <chips/busses.h>
/* initialization typecasts */
#define SPL_FIVE (vm_offset_t)SPL5
#define SPL_SIX (vm_offset_t)SPL6
#define SPL_TTY (vm_offset_t)SPLTTY
#if NCOM > 0
extern struct bus_driver comdriver;
extern void comintr();
#endif /* NCOM */
#if NLPR > 0
extern struct bus_driver lprdriver;
extern void lprintr();
#endif /* NLPR */
struct bus_ctlr bus_master_init[] = {
/* driver name unit intr address len phys_address
adaptor alive flags spl pic */
{0}
};
struct bus_device bus_device_init[] = {
/* driver name unit intr address am phys_address
adaptor alive ctlr slave flags *mi *next sysdep sysdep */
#if NCOM > 0
{&comdriver, "com", 0, comintr, 0x3f8, 8, 0x3f8,
'?', 0, -1, -1, 0, 0, 0, SPL_TTY, 4},
{&comdriver, "com", 1, comintr, 0x2f8, 8, 0x2f8,
'?', 0, -1, -1, 0, 0, 0, SPL_TTY, 3},
{&comdriver, "com", 2, comintr, 0x3e8, 8, 0x3e8,
'?', 0, -1, -1, 0, 0, 0, SPL_TTY, 5},
#endif /* NCOM > 0 */
#ifdef MACH_LPR
#if NLPR > 0
{&lprdriver, "lpr", 0, lprintr, 0x378, 3, 0x378,
'?', 0, -1, -1, 0, 0, 0, SPL_TTY, 7},
{&lprdriver, "lpr", 0, lprintr, 0x278, 3, 0x278,
'?', 0, -1, -1, 0, 0, 0, SPL_TTY, 7},
{&lprdriver, "lpr", 0, lprintr, 0x3bc, 3, 0x3bc,
'?', 0, -1, -1, 0, 0, 0, SPL_TTY, 7},
#endif /* NLPR > 0 */
#endif /* MACH_LPR */
{0}
};
/*
* probeio:
*
* Probe and subsequently attach devices out on the AT bus.
*
*
*/
void probeio(void)
{
register struct bus_device *device;
register struct bus_ctlr *master;
int i = 0;
for (master = bus_master_init; master->driver; master++)
{
if (configure_bus_master(master->name, master->address,
master->phys_address, i, "atbus"))
i++;
}
for (device = bus_device_init; device->driver; device++)
{
/* ignore what we (should) have found already */
if (device->alive || device->ctlr >= 0)
continue;
if (configure_bus_device(device->name, device->address,
device->phys_address, i, "atbus"))
i++;
}
#if MACH_TTD
/*
* Initialize Remote kernel debugger.
*/
ttd_init();
#endif /* MACH_TTD */
}
void take_dev_irq(
struct bus_device *dev)
{
int pic = (int)dev->sysdep1;
if (intpri[pic] == 0) {
iunit[pic] = dev->unit;
ivect[pic] = dev->intr;
intpri[pic] = (int)dev->sysdep;
form_pic_mask();
} else {
printf("The device below will clobber IRQ %d.\n", pic);
printf("You have two devices at the same IRQ.\n");
printf("This won't work. Reconfigure your hardware and try again.\n");
printf("%s%d: port = %x, spl = %d, pic = %d.\n",
dev->name, dev->unit, dev->address,
dev->sysdep, dev->sysdep1);
while (1);
}
}
void take_ctlr_irq(
struct bus_ctlr *ctlr)
{
int pic = ctlr->sysdep1;
if (intpri[pic] == 0) {
iunit[pic] = ctlr->unit;
ivect[pic] = ctlr->intr;
intpri[pic] = (int)ctlr->sysdep;
form_pic_mask();
} else {
printf("The device below will clobber IRQ %d.\n", pic);
printf("You have two devices at the same IRQ. This won't work.\n");
printf("Reconfigure your hardware and try again.\n");
while (1);
}
}
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