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Diffstat (limited to 'i386/i386at/autoconf.c')
| -rw-r--r-- | i386/i386at/autoconf.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/i386/i386at/autoconf.c b/i386/i386at/autoconf.c new file mode 100644 index 0000000..5c69988 --- /dev/null +++ b/i386/i386at/autoconf.c @@ -0,0 +1,149 @@ +/* + * 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 <i386at/autoconf.h> +#include <i386/irq.h> +#include <i386/ipl.h> +#ifdef APIC +# include <i386/apic.h> +#else +# include <i386/pic.h> +#endif +#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; +#include <i386at/com.h> +#endif /* NCOM */ + +#if NLPR > 0 +extern struct bus_driver lprdriver; +#include <i386at/lpr.h> +#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) +{ + struct bus_device *device; + 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( + const struct bus_device *dev) +{ + int pic = (int)dev->sysdep1; + + if (ivect[pic] == intnull) { + iunit[pic] = dev->unit; + ivect[pic] = dev->intr; + } else { + printf("The device below will clobber IRQ %d (%p).\n", pic, ivect[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 = %zx, spl = %zd, pic = %d.\n", + dev->name, dev->unit, dev->address, + dev->sysdep, dev->sysdep1); + while (1); + } + + unmask_irq(pic); +} |