diff options
Diffstat (limited to 'sys/dev/pci/pcivar.h')
| -rw-r--r-- | sys/dev/pci/pcivar.h | 75 |
1 files changed, 52 insertions, 23 deletions
diff --git a/sys/dev/pci/pcivar.h b/sys/dev/pci/pcivar.h index 659a87ed6db..42c170f4971 100644 --- a/sys/dev/pci/pcivar.h +++ b/sys/dev/pci/pcivar.h @@ -1,7 +1,8 @@ -/* $OpenBSD: pcivar.h,v 1.6 1996/04/18 23:48:08 niklas Exp $ */ -/* $NetBSD: pcivar.h,v 1.8 1995/06/18 01:26:50 cgd Exp $ */ +/* $OpenBSD: pcivar.h,v 1.7 1996/04/21 22:25:51 deraadt Exp $ */ +/* $NetBSD: pcivar.h,v 1.15 1996/03/28 02:16:23 cgd Exp $ */ /* + * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. * Copyright (c) 1994 Charles Hannum. All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -38,52 +39,73 @@ * * This file describes types and functions which are used for PCI * configuration. Some of this information is machine-specific, and is - * separated into pci_machdep.h. + * provided by pci_machdep.h. */ #include <machine/bus.h> +#include <dev/pci/pcireg.h> +/* + * Structures and definitions needed by the machine-dependent header. + */ +typedef u_int32_t pcireg_t; /* configuration space register XXX */ +struct pcibus_attach_args; + +/* + * Machine-dependent definitions. + */ #if (alpha + i386 != 1) ERROR: COMPILING FOR UNSUPPORTED MACHINE, OR MORE THAN ONE. #endif - #if alpha #include <alpha/pci/pci_machdep.h> #endif - #if i386 #include <i386/pci/pci_machdep.h> #endif /* - * The maximum number of devices on a PCI bus is 32. However, some - * PCI chipsets (e.g. chipsets that implement 'Configuration Mechanism #2' - * on the i386) can't deal with that many, so let pci_machdep.h override it. - */ -#ifndef PCI_MAX_DEVICE_NUMBER -#define PCI_MAX_DEVICE_NUMBER 32 -#endif - -/* * PCI bus attach arguments. */ struct pcibus_attach_args { char *pba_busname; /* XXX should be common */ bus_chipset_tag_t pba_bc; /* XXX should be common */ + pci_chipset_tag_t pba_pc; int pba_bus; /* PCI bus number */ + + /* + * Interrupt swizzling information. These fields + * are only used by secondary busses. + */ + u_int pba_intrswiz; /* how to swizzle pins */ + pcitag_t pba_intrtag; /* intr. appears to come from here */ }; /* * PCI device attach arguments. */ struct pci_attach_args { - bus_chipset_tag_t pa_bc; /* bus chipset tag */ + bus_chipset_tag_t pa_bc; + pci_chipset_tag_t pa_pc; - int pa_device; - int pa_function; + u_int pa_device; + u_int pa_function; pcitag_t pa_tag; pcireg_t pa_id, pa_class; + + /* + * Interrupt information. + * + * "Intrline" is used on systems whose firmware puts + * the right routing data into the line register in + * configuration space. The rest are used on systems + * that do not. + */ + u_int pa_intrswiz; /* how to swizzle pins if ppb */ + pcitag_t pa_intrtag; /* intr. appears to come from here */ + pci_intr_pin_t pa_intrpin; /* intr. appears on this pin */ + pci_intr_line_t pa_intrline; /* intr. routing information */ }; /* @@ -101,11 +123,18 @@ struct pci_attach_args { #define pcicf_function cf_loc[1] #define PCI_UNK_FUNCTION -1 /* wildcarded 'function' */ -pcireg_t pci_conf_read __P((pcitag_t, int)); -void pci_conf_write __P((pcitag_t, int, pcireg_t)); -void pci_devinfo __P((pcireg_t, pcireg_t, int, char *)); -pcitag_t pci_make_tag __P((int, int, int)); -void *pci_map_int __P((pcitag_t, int, int (*)(void *), void *, char *)); -int pci_map_mem __P((pcitag_t, int, vm_offset_t *, vm_offset_t *)); +/* + * Configuration space access and utility functions. (Note that most, + * e.g. make_tag, conf_read, conf_write are declared by pci_machdep.h.) + */ +int pci_io_find __P((pci_chipset_tag_t, pcitag_t, int, bus_io_addr_t *, + bus_io_size_t *)); +int pci_mem_find __P((pci_chipset_tag_t, pcitag_t, int, bus_mem_addr_t *, + bus_mem_size_t *, int *)); + +/* + * Helper functions for autoconfiguration. + */ +void pci_devinfo __P((pcireg_t, pcireg_t, int, char *)); #endif /* _DEV_PCI_PCIVAR_H_ */ |