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      1 /* $NetBSD: pci_machdep.h,v 1.15 2022/08/16 14:00:03 skrll Exp $ */
      2 /* NetBSD: pci_machdep.h,v 1.3 1999/03/19 03:40:46 cgd Exp  */
      3 
      4 /*
      5  * Copyright (c) 1996 Carnegie-Mellon University.
      6  * All rights reserved.
      7  *
      8  * Author: Chris G. Demetriou
      9  *
     10  * Permission to use, copy, modify and distribute this software and
     11  * its documentation is hereby granted, provided that both the copyright
     12  * notice and this permission notice appear in all copies of the
     13  * software, derivative works or modified versions, and any portions
     14  * thereof, and that both notices appear in supporting documentation.
     15  *
     16  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     17  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     18  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     19  *
     20  * Carnegie Mellon requests users of this software to return to
     21  *
     22  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     23  *  School of Computer Science
     24  *  Carnegie Mellon University
     25  *  Pittsburgh PA 15213-3890
     26  *
     27  * any improvements or extensions that they make and grant Carnegie the
     28  * rights to redistribute these changes.
     29  */
     30 
     31 #ifndef	_MACHINE_PCI_MACHDEP_H_
     32 #define	_MACHINE_PCI_MACHDEP_H_
     33 
     34 /*
     35  * Machine-specific definitions for PCI autoconfiguration.
     36  */
     37 #define __HAVE_PCI_CONF_HOOK
     38 
     39 /*
     40  * Forward declarations.
     41  */
     42 struct pci_attach_args;
     43 
     44 /*
     45  * Types provided to machine-independent PCI code
     46  */
     47 typedef struct arc_pci_chipset *pci_chipset_tag_t;
     48 typedef u_long pcitag_t;
     49 typedef u_long pci_intr_handle_t;
     50 
     51 /*
     52  * arc-specific PCI structure and type definitions.
     53  * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
     54  */
     55 struct arc_pci_chipset {
     56 	void		(*pc_attach_hook)(device_t, device_t,
     57 			    struct pcibus_attach_args *);
     58 	int		(*pc_bus_maxdevs)(pci_chipset_tag_t, int);
     59 	pcitag_t	(*pc_make_tag)(pci_chipset_tag_t, int, int, int);
     60 	void		(*pc_decompose_tag)(pci_chipset_tag_t, pcitag_t,
     61 			    int *, int *, int *);
     62 	pcireg_t	(*pc_conf_read)(pci_chipset_tag_t, pcitag_t, int);
     63 	void		(*pc_conf_write)(pci_chipset_tag_t, pcitag_t, int,
     64 			    pcireg_t);
     65 	int		(*pc_intr_map)(const struct pci_attach_args *,
     66 			    pci_intr_handle_t *);
     67 	const char	*(*pc_intr_string)(pci_chipset_tag_t,
     68 			    pci_intr_handle_t, char *, size_t);
     69 	int		(*pc_intr_setattr)(void *, pci_intr_handle_t *,
     70 			    int, uint64_t);
     71 	void		*(*pc_intr_establish)(pci_chipset_tag_t,
     72 			    pci_intr_handle_t, int, int (*)(void *), void *);
     73 	void		(*pc_intr_disestablish)(pci_chipset_tag_t, void *);
     74 	void		(*pc_conf_interrupt)(pci_chipset_tag_t, int, int, int,
     75 			    int, int *);
     76 	int		(*pc_conf_hook)(pci_chipset_tag_t, int, int, int,
     77 			    pcireg_t);
     78 };
     79 
     80 /*
     81  * Functions provided to machine-independent PCI code.
     82  */
     83 #define	pci_attach_hook(p, s, pba)					\
     84     (*(pba)->pba_pc->pc_attach_hook)((p), (s), (pba))
     85 #define	pci_bus_maxdevs(c, b)						\
     86     (*(c)->pc_bus_maxdevs)((c), (b))
     87 #define	pci_make_tag(c, b, d, f)					\
     88     (*(c)->pc_make_tag)((c), (b), (d), (f))
     89 #define	pci_decompose_tag(c, t, bp, dp, fp)				\
     90     (*(c)->pc_decompose_tag)((c), (t), (bp), (dp), (fp))
     91 #define	pci_conf_read(c, t, r)						\
     92     (*(c)->pc_conf_read)((c), (t), (r))
     93 #define	pci_conf_write(c, t, r, v)					\
     94     (*(c)->pc_conf_write)((c), (t), (r), (v))
     95 #define	pci_intr_map(pa, ihp)						\
     96     (*(pa)->pa_pc->pc_intr_map)((pa), (ihp))
     97 #define	pci_intr_string(c, ih, buf, len)				\
     98     (*(c)->pc_intr_string)((c), (ih), (buf), (len))
     99 #define	pci_intr_establish(c, ih, l, h, a)				\
    100     (*(c)->pc_intr_establish)((c), (ih), (l), (h), (a))
    101 #define	pci_intr_disestablish(c, iv)					\
    102     (*(c)->pc_intr_disestablish)((c), (iv))
    103 #define	pci_conf_interrupt(c, b, d, f, s, i)				\
    104     (*(c)->pc_conf_interrupt)((c), (b), (d), (f), (s), (i))
    105 #define	pci_conf_hook(c, b, d, f, i)					\
    106     (*(c)->pc_conf_hook)((c), (b), (d), (f), (i))
    107 
    108 static inline int
    109 pci_intr_setattr(pci_chipset_tag_t pc, pci_intr_handle_t *ihp,
    110     int attr, uint64_t data)
    111 {
    112 	if (!pc->pc_intr_setattr)
    113 		return ENODEV;
    114 	return pc->pc_intr_setattr(pc, ihp, attr, data);
    115 }
    116 
    117 #endif /* _MACHINE_PCI_MACHDEP_H_ */
    118