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      1 /* $NetBSD: pci_machdep.h,v 1.10 2022/08/16 13:50:54 skrll Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1996 Carnegie-Mellon University.
      5  * All rights reserved.
      6  *
      7  * Author: Chris G. Demetriou
      8  *
      9  * Permission to use, copy, modify and distribute this software and
     10  * its documentation is hereby granted, provided that both the copyright
     11  * notice and this permission notice appear in all copies of the
     12  * software, derivative works or modified versions, and any portions
     13  * thereof, and that both notices appear in supporting documentation.
     14  *
     15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     18  *
     19  * Carnegie Mellon requests users of this software to return to
     20  *
     21  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     22  *  School of Computer Science
     23  *  Carnegie Mellon University
     24  *  Pittsburgh PA 15213-3890
     25  *
     26  * any improvements or extensions that they make and grant Carnegie the
     27  * rights to redistribute these changes.
     28  */
     29 
     30 #ifndef _MIPS_INCLUDE_PCI_MACHDEP_H_
     31 #define	_MIPS_INCLUDE_PCI_MACHDEP_H_
     32 
     33 /*
     34  * __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH (if used) needs to be
     35  * defined before this file is included
     36  */
     37 
     38 /*
     39  * Types provided to machine-independent PCI code
     40  */
     41 typedef struct mips_pci_chipset *pci_chipset_tag_t;
     42 typedef u_long pcitag_t;
     43 typedef u_long pci_intr_handle_t;
     44 
     45 /*
     46  * Forward declarations.
     47  */
     48 struct pci_attach_args;
     49 
     50 /*
     51  * mips-specific PCI structure and type definitions.
     52  * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
     53  */
     54 struct mips_pci_chipset {
     55 	void		*pc_conf_v;
     56 	void		(*pc_attach_hook)(device_t, device_t,
     57 			    struct pcibus_attach_args *);
     58 	int		(*pc_bus_maxdevs)(void *, int);
     59 	pcitag_t	(*pc_make_tag)(void *, int, int, int);
     60 	void		(*pc_decompose_tag)(void *, pcitag_t, int *,
     61 			    int *, int *);
     62 	pcireg_t	(*pc_conf_read)(void *, pcitag_t, int);
     63 	void		(*pc_conf_write)(void *, pcitag_t, int, pcireg_t);
     64 
     65 	void		*pc_intr_v;
     66 	int		(*pc_intr_map)(const struct pci_attach_args *,
     67 			    pci_intr_handle_t *);
     68 	const char	*(*pc_intr_string)(void *, pci_intr_handle_t,
     69 			    char *, size_t);
     70 	const struct evcnt *(*pc_intr_evcnt)(void *, pci_intr_handle_t);
     71 	int		(*pc_intr_setattr)(void *, pci_intr_handle_t *,
     72 			    int, uint64_t);
     73 	void		*(*pc_intr_establish)(void *, pci_intr_handle_t,
     74 			    int, int (*)(void *), void *);
     75 	void		(*pc_intr_disestablish)(void *, void *);
     76 
     77 	void		(*pc_conf_interrupt)(void *, int, int, int,
     78 			    int, int *);
     79 
     80 #ifdef __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH
     81 	void		*(*pc_pciide_compat_intr_establish)(void *,
     82 			    device_t, const struct pci_attach_args *, int,
     83 			    int (*)(void *), void *);
     84 #endif
     85 };
     86 
     87 /*
     88  * Functions provided to machine-independent PCI code.
     89  */
     90 #define	pci_attach_hook(p, s, pba)					\
     91     (*(pba)->pba_pc->pc_attach_hook)((p), (s), (pba))
     92 #define	pci_bus_maxdevs(c, b)						\
     93     (*(c)->pc_bus_maxdevs)((c)->pc_conf_v, (b))
     94 #define	pci_make_tag(c, b, d, f)					\
     95     (*(c)->pc_make_tag)((c)->pc_conf_v, (b), (d), (f))
     96 #define	pci_decompose_tag(c, t, bp, dp, fp)				\
     97     (*(c)->pc_decompose_tag)((c)->pc_conf_v, (t), (bp), (dp), (fp))
     98 #define	pci_conf_read(c, t, r)						\
     99     (*(c)->pc_conf_read)((c)->pc_conf_v, (t), (r))
    100 #define	pci_conf_write(c, t, r, v)					\
    101     (*(c)->pc_conf_write)((c)->pc_conf_v, (t), (r), (v))
    102 #define	pci_intr_map(pa, ihp)						\
    103     (*(pa)->pa_pc->pc_intr_map)((pa), (ihp))
    104 #define	pci_intr_string(c, ih, buf, len)				\
    105     (*(c)->pc_intr_string)((c)->pc_intr_v, (ih), (buf), (len))
    106 #define	pci_intr_evcnt(c, ih)						\
    107     (*(c)->pc_intr_evcnt)((c)->pc_intr_v, (ih))
    108 #define	pci_intr_establish(c, ih, l, h, a)				\
    109     (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), (h), (a))
    110 #define	pci_intr_disestablish(c, iv)					\
    111     (*(c)->pc_intr_disestablish)((c)->pc_intr_v, (iv))
    112 #define	pci_conf_interrupt(c, b, d, p, s, lp)				\
    113     (*(c)->pc_conf_interrupt)((c)->pc_intr_v, (b), (d), (p), (s), (lp))
    114 
    115 static inline int
    116 pci_intr_setattr(pci_chipset_tag_t pc, pci_intr_handle_t *ihp,
    117     int attr, uint64_t data)
    118 {
    119 	if (!pc->pc_intr_setattr)
    120 		return ENODEV;
    121 	return pc->pc_intr_setattr(pc, ihp, attr, data);
    122 }
    123 
    124 /*
    125  * mips-specific PCI functions.
    126  * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
    127  */
    128 #ifdef __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH
    129 #define	mips_pciide_compat_intr_establish(c, d, p, ch, f, a)		\
    130     ((c)->pc_pciide_compat_intr_establish == NULL ? NULL :		\
    131      (*(c)->pc_pciide_compat_intr_establish)((c)->pc_conf_v, (d), (p),	\
    132 	(ch), (f), (a)))
    133 #endif
    134 
    135 #endif	/* _MIPS_INCLUDE_PCI_MACHDEP_H_ */
    136