2 * The PCI Library -- Internal Stuff
4 * Copyright (c) 1997--2022 Martin Mares <mj@ucw.cz>
6 * Can be freely distributed and used under the terms of the GNU GPL.
12 #define PCI_ABI __attribute__((visibility("default")))
13 // Functions, which are bound to externally visible symbols by the versioning
14 // mechanism, have to be declared as VERSIONED. Otherwise, GCC with global
15 // optimizations is happy to optimize them away, leading to linker failures.
16 #define VERSIONED_ABI __attribute__((used)) PCI_ABI
18 #define STATIC_ALIAS(_decl, _for) _decl PCI_ABI { return _for; }
19 #define DEFINE_ALIAS(_decl, _for)
20 #define SYMBOL_VERSION(_int, _ext)
22 #define STATIC_ALIAS(_decl, _for)
23 #define DEFINE_ALIAS(_decl, _for) extern _decl __attribute__((alias(#_for)))
25 /* GCC does not support asm .symver directive for Windows targets, so define new external global function symbol as alias to internal symbol */
26 #define SYMBOL_VERSION(_int, _ext) asm(".globl\t" PCI_STRINGIFY(__MINGW_USYMBOL(_ext)) "\n\t" \
27 ".def\t" PCI_STRINGIFY(__MINGW_USYMBOL(_ext)) ";\t.scl\t2;\t.type\t32;\t.endef\n\t" \
28 ".set\t" PCI_STRINGIFY(__MINGW_USYMBOL(_ext)) "," PCI_STRINGIFY(__MINGW_USYMBOL(_int)))
30 #define SYMBOL_VERSION(_int, _ext) asm(".symver " #_int "," #_ext)
35 #define STATIC_ALIAS(_decl, _for) _decl { return _for; }
36 #define DEFINE_ALIAS(_decl, _for)
37 #define SYMBOL_VERSION(_int, _ext)
43 /* Old 32-bit-only versions of MinGW32 do not define __MINGW_USYMBOL macro */
45 #ifndef __MINGW_USYMBOL
46 #define __MINGW_USYMBOL(sym) _##sym
50 #define _PCI_STRINGIFY(x) #x
51 #define PCI_STRINGIFY(x) _PCI_STRINGIFY(x)
56 void (*config)(struct pci_access *);
57 int (*detect)(struct pci_access *);
58 void (*init)(struct pci_access *);
59 void (*cleanup)(struct pci_access *);
60 void (*scan)(struct pci_access *);
61 void (*fill_info)(struct pci_dev *, unsigned int flags);
62 int (*read)(struct pci_dev *, int pos, byte *buf, int len);
63 int (*write)(struct pci_dev *, int pos, byte *buf, int len);
64 int (*read_vpd)(struct pci_dev *, int pos, byte *buf, int len);
65 void (*init_dev)(struct pci_dev *);
66 void (*cleanup_dev)(struct pci_dev *);
70 void pci_generic_scan_bus(struct pci_access *, byte *busmap, int domain, int bus);
71 void pci_generic_scan_domain(struct pci_access *, int domain);
72 void pci_generic_scan(struct pci_access *);
73 void pci_generic_fill_info(struct pci_dev *, unsigned int flags);
74 int pci_generic_block_read(struct pci_dev *, int pos, byte *buf, int len);
75 int pci_generic_block_write(struct pci_dev *, int pos, byte *buf, int len);
78 int pci_emulated_read(struct pci_dev *d, int pos, byte *buf, int len);
81 void *pci_malloc(struct pci_access *, int);
82 void pci_mfree(void *);
83 char *pci_strdup(struct pci_access *a, const char *s);
85 void pci_init_v30(struct pci_access *a) VERSIONED_ABI;
86 void pci_init_v35(struct pci_access *a) VERSIONED_ABI;
89 struct pci_dev *pci_alloc_dev(struct pci_access *);
90 int pci_link_dev(struct pci_access *, struct pci_dev *);
92 int pci_fill_info_v30(struct pci_dev *, int flags) VERSIONED_ABI;
93 int pci_fill_info_v31(struct pci_dev *, int flags) VERSIONED_ABI;
94 int pci_fill_info_v32(struct pci_dev *, int flags) VERSIONED_ABI;
95 int pci_fill_info_v33(struct pci_dev *, int flags) VERSIONED_ABI;
96 int pci_fill_info_v34(struct pci_dev *, int flags) VERSIONED_ABI;
97 int pci_fill_info_v35(struct pci_dev *, int flags) VERSIONED_ABI;
98 int pci_fill_info_v38(struct pci_dev *, int flags) VERSIONED_ABI;
100 static inline int want_fill(struct pci_dev *d, unsigned want_fields, unsigned int try_fields)
102 want_fields &= try_fields;
103 if ((d->known_fields & want_fields) == want_fields)
107 d->known_fields |= try_fields;
112 static inline void clear_fill(struct pci_dev *d, unsigned clear_fields)
114 d->known_fields &= ~clear_fields;
117 struct pci_property {
118 struct pci_property *next;
123 char *pci_set_property(struct pci_dev *d, u32 key, char *value);
126 void pci_define_param(struct pci_access *acc, char *param, char *val, char *help);
127 int pci_set_param_internal(struct pci_access *acc, char *param, char *val, int copy);
128 void pci_free_params(struct pci_access *acc);
131 void pci_scan_caps(struct pci_dev *, unsigned int want_fields);
132 void pci_free_caps(struct pci_dev *);
134 extern struct pci_methods pm_intel_conf1, pm_intel_conf2, pm_linux_proc,
135 pm_fbsd_device, pm_aix_device, pm_nbsd_libpci, pm_obsd_device,
136 pm_dump, pm_linux_sysfs, pm_darwin, pm_sylixos_device, pm_hurd,
137 pm_mmio_conf1, pm_mmio_conf1_ext,
138 pm_win32_cfgmgr32, pm_win32_kldbg, pm_win32_sysdbg;