851de295eb
pci_attach_args *" instead of from four separate parameters which in all cases were extracted from the same "struct pci_attach_args". This both simplifies the driver api, and allows for alternate PCI interrupt mapping schemes, such as one using the tables described in the Intel Multiprocessor Spec which describe interrupt wirings for devices behind pci-pci bridges based on the device's location rather the bridge's location. Tested on alpha and i386; welcome to 1.5Q
112 lines
3.9 KiB
C
112 lines
3.9 KiB
C
/* $NetBSD: pci_machdep.h,v 1.6 2000/12/28 22:59:06 sommerfeld Exp $ */
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/*
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* Copyright (c) 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*
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* Machine-specific definitions for PCI autoconfiguration.
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*/
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/*
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* Types provided to machine-independent PCI code
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*/
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typedef struct alpha_pci_chipset *pci_chipset_tag_t;
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typedef u_long pcitag_t;
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typedef u_long pci_intr_handle_t;
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/*
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* Forward declarations.
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*/
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struct pci_attach_args;
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/*
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* alpha-specific PCI structure and type definitions.
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* NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
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*/
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struct alpha_pci_chipset {
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void *pc_conf_v;
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void (*pc_attach_hook)(struct device *,
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struct device *, struct pcibus_attach_args *);
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int (*pc_bus_maxdevs)(void *, int);
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pcitag_t (*pc_make_tag)(void *, int, int, int);
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pcireg_t (*pc_conf_read)(void *, pcitag_t, int);
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void (*pc_conf_write)(void *, pcitag_t, int, pcireg_t);
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void *pc_intr_v;
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int (*pc_intr_map)(struct pci_attach_args *,
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pci_intr_handle_t *);
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const char *(*pc_intr_string)(void *, pci_intr_handle_t);
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const struct evcnt *(*pc_intr_evcnt)(void *, pci_intr_handle_t);
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void *(*pc_intr_establish)(void *, pci_intr_handle_t,
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int, int (*)(void *), void *);
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void (*pc_intr_disestablish)(void *, void *);
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/* alpha-specific */
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void (*pc_decompose_tag)(void *, pcitag_t, int *,
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int *, int *);
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void *(*pc_pciide_compat_intr_establish)(void *,
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struct device *, struct pci_attach_args *, int,
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int (*)(void *), void *);
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};
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/*
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* Functions provided to machine-independent PCI code.
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*/
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#define pci_attach_hook(p, s, pba) \
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(*(pba)->pba_pc->pc_attach_hook)((p), (s), (pba))
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#define pci_bus_maxdevs(c, b) \
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(*(c)->pc_bus_maxdevs)((c)->pc_conf_v, (b))
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#define pci_make_tag(c, b, d, f) \
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(*(c)->pc_make_tag)((c)->pc_conf_v, (b), (d), (f))
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#define pci_conf_read(c, t, r) \
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(*(c)->pc_conf_read)((c)->pc_conf_v, (t), (r))
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#define pci_conf_write(c, t, r, v) \
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(*(c)->pc_conf_write)((c)->pc_conf_v, (t), (r), (v))
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#define pci_intr_map(pa, ihp) \
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(*(pa)->pa_pc->pc_intr_map)((pa), (ihp))
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#define pci_intr_string(c, ih) \
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(*(c)->pc_intr_string)((c)->pc_intr_v, (ih))
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#define pci_intr_evcnt(c, ih) \
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(*(c)->pc_intr_evcnt)((c)->pc_intr_v, (ih))
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#define pci_intr_establish(c, ih, l, h, a) \
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(*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), (h), (a))
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#define pci_intr_disestablish(c, iv) \
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(*(c)->pc_intr_disestablish)((c)->pc_intr_v, (iv))
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/*
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* alpha-specific PCI functions.
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* NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
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*/
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void pci_display_console(bus_space_tag_t, bus_space_tag_t,
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pci_chipset_tag_t, int, int, int);
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#define alpha_pci_decompose_tag(c, t, bp, dp, fp) \
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(*(c)->pc_decompose_tag)((c)->pc_conf_v, (t), (bp), (dp), (fp))
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#define alpha_pciide_compat_intr_establish(c, d, p, ch, f, a) \
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((c)->pc_pciide_compat_intr_establish == NULL ? NULL : \
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(*(c)->pc_pciide_compat_intr_establish)((c)->pc_conf_v, (d), (p), \
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(ch), (f), (a)))
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