sys/arch/powerpc/include/pci_machdep.h

   1 /* $NetBSD: pci_machdep.h,v 1.7 2008/01/17 23:42:58 garbled Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2002,2007 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Klaus Klein and Tim Rightnour
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _PCI_MACHDEP_H_
  33 #define _PCI_MACHDEP_H_
  34
  35 #include <prop/proplib.h>
  36
  37 /*
  38  * Machine-specific definitions for PCI autoconfiguration.
  39  */
  40
  41 #define __HAVE_PCI_CONF_HOOK
  42
  43 /*
  44  * Types provided to machine-independent PCI code
  45  */
  46 typedef struct genppc_pci_chipset *pci_chipset_tag_t;
  47 typedef int pcitag_t;
  48 typedef int pci_intr_handle_t;
  49
  50 extern struct powerpc_bus_dma_tag pci_bus_dma_tag;
  51
  52 /*
  53  * Forward declarations.
  54  */
  55 struct pci_attach_args;
  56
  57 /* Per bus information structure */
  58 struct genppc_pci_chipset_businfo {
  59         SIMPLEQ_ENTRY(genppc_pci_chipset_businfo) next;
  60         prop_dictionary_t       pbi_properties; /* chipset properties */
  61 };
  62
  63 /*
  64  * Generic PPC PCI structure and type definitions.
  65  * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
  66  */
  67 struct genppc_pci_chipset {
  68         void            *pc_conf_v;
  69         void            (*pc_attach_hook)(struct device *,
  70                             struct device *, struct pcibus_attach_args *);
  71         int             (*pc_bus_maxdevs)(pci_chipset_tag_t, int);
  72         pcitag_t        (*pc_make_tag)(void *, int, int, int);
  73         pcireg_t        (*pc_conf_read)(void *, pcitag_t, int);
  74         void            (*pc_conf_write)(void *, pcitag_t, int, pcireg_t);
  75
  76         void            *pc_intr_v;
  77         int             (*pc_intr_map)(struct pci_attach_args *,
  78                             pci_intr_handle_t *);
  79         const char      *(*pc_intr_string)(void *, pci_intr_handle_t);
  80         const struct evcnt *(*pc_intr_evcnt)(void *, pci_intr_handle_t);
  81         void            *(*pc_intr_establish)(void *, pci_intr_handle_t,
  82                             int, int (*)(void *), void *);
  83         void            (*pc_intr_disestablish)(void *, void *);
  84         void            (*pc_conf_interrupt)(pci_chipset_tag_t, int, int, int,
  85                             int, int *);
  86         void            (*pc_decompose_tag)(void *, pcitag_t, int *,
  87                             int *, int *);
  88         int             (*pc_conf_hook)(pci_chipset_tag_t, int, int, int,
  89                             pcireg_t);
  90
  91         u_int32_t       *pc_addr;
  92         u_int32_t       *pc_data;
  93         int             pc_node;
  94         int             pc_ihandle;
  95         int             pc_bus;
  96         bus_space_tag_t pc_memt;
  97         bus_space_tag_t pc_iot;
  98
  99         SIMPLEQ_HEAD(, genppc_pci_chipset_businfo) pc_pbi;
 100 };
 101
 102 /*
 103  * Functions provided to machine-independent PCI code.
 104  */
 105 #define pci_attach_hook(p, s, pba)                                      \
 106     (*(pba)->pba_pc->pc_attach_hook)((p), (s), (pba))
 107 #define pci_bus_maxdevs(c, b)                                           \
 108     (*(c)->pc_bus_maxdevs)((c)->pc_conf_v, (b))
 109 #define pci_make_tag(c, b, d, f)                                        \
 110     (*(c)->pc_make_tag)((c)->pc_conf_v, (b), (d), (f))
 111 #define pci_conf_read(c, t, r)                                          \
 112     (*(c)->pc_conf_read)((c)->pc_conf_v, (t), (r))
 113 #define pci_conf_write(c, t, r, v)                                      \
 114     (*(c)->pc_conf_write)((c)->pc_conf_v, (t), (r), (v))
 115 #define pci_intr_map(pa, ihp)                                           \
 116     (*(pa)->pa_pc->pc_intr_map)((pa), (ihp))
 117 #define pci_intr_string(c, ih)                                          \
 118     (*(c)->pc_intr_string)((c)->pc_intr_v, (ih))
 119 #define pci_intr_evcnt(c, ih)                                           \
 120     (*(c)->pc_intr_evcnt)((c)->pc_intr_v, (ih))
 121 #define pci_intr_establish(c, ih, l, h, a)                              \
 122     (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), (h), (a))
 123 #define pci_intr_disestablish(c, iv)                                    \
 124     (*(c)->pc_intr_disestablish)((c)->pc_intr_v, (iv))
 125 #define pci_conf_interrupt(c, b, d, p, s, ip)                           \
 126     (*(c)->pc_conf_interrupt)((c)->pc_conf_v, (b), (d), (p), (s), (ip))
 127 #define pci_decompose_tag(c, t, bp, dp, fp)                             \
 128     (*(c)->pc_decompose_tag)((c)->pc_conf_v, (t), (bp), (dp), (fp))
 129 #define pci_conf_hook(c, b, d, f, i)                                    \
 130     (*(c)->pc_conf_hook)((c)->pc_conf_v, (b), (d), (f), (i))
 131
 132 #ifdef _KERNEL
 133
 134 /*
 135  * Generic PowerPC PCI functions.  Override if necc.
 136  */
 137
 138 int genppc_pci_bus_maxdevs(pci_chipset_tag_t, int);
 139 const char *genppc_pci_intr_string(void *, pci_intr_handle_t);
 140 const struct evcnt *genppc_pci_intr_evcnt(void *, pci_intr_handle_t);
 141 void *genppc_pci_intr_establish(void *, pci_intr_handle_t, int, int (*)(void *),
 142     void *);
 143 void genppc_pci_intr_disestablish(void *, void *);
 144 void genppc_pci_conf_interrupt(pci_chipset_tag_t, int, int, int, int, int *);
 145 int genppc_pci_conf_hook(pci_chipset_tag_t, int, int, int, pcireg_t);
 146 int genppc_pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp);
 147
 148 /* generic indirect PCI functions */
 149 void genppc_pci_indirect_attach_hook(struct device *, struct device *,
 150     struct pcibus_attach_args *);
 151 pcitag_t genppc_pci_indirect_make_tag(void *, int, int, int);
 152 pcireg_t genppc_pci_indirect_conf_read(void *, pcitag_t, int);
 153 void genppc_pci_indirect_conf_write(void *, pcitag_t, int, pcireg_t);
 154 void genppc_pci_indirect_decompose_tag(void *, pcitag_t, int *, int *, int *);
 155
 156 /* generic OFW method PCI functions */
 157 void genppc_pci_ofmethod_attach_hook(struct device *, struct device *,
 158     struct pcibus_attach_args *);
 159 pcitag_t genppc_pci_ofmethod_make_tag(void *, int, int, int);
 160 pcireg_t genppc_pci_ofmethod_conf_read(void *, pcitag_t, int);
 161 void genppc_pci_ofmethod_conf_write(void *, pcitag_t, int, pcireg_t);
 162 void genppc_pci_ofmethod_decompose_tag(void *, pcitag_t, int *, int *, int *);
 163
 164 /* Generic OFW PCI functions */
 165
 166 int genofw_find_picnode(int);
 167 void genofw_find_ofpics(int);
 168 void genofw_fixup_picnode_offsets(void);
 169 void genofw_setup_pciintr_map(void *, struct genppc_pci_chipset_businfo *, int);
 170 int genofw_find_node_by_devfunc(int, int, int, int);
 171 int genofw_pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
 172 int genofw_pci_conf_hook(pci_chipset_tag_t, int, int, int, pcireg_t);
 173
 174
 175 /* OFW PCI structures and defines */
 176 #define PICNODE_TYPE_OPENPIC    1
 177 #define PICNODE_TYPE_8259       2
 178 #define PICNODE_TYPE_HEATHROW   3
 179 #define PICNODE_TYPE_OHARE      4
 180 #define PICNODE_TYPE_IVR        5
 181
 182 typedef struct _ofw_pic_node_t {
 183         int node;
 184         int parent;
 185         int16_t cells;
 186         int16_t intrs;
 187         int16_t offset;
 188         int16_t type;
 189 } ofw_pic_node_t;
 190
 191 #endif /* _KERNEL */
 192
 193 #endif /* _PCI_MACHDEP_H_ */