| 1 | #ifndef _SYSLINUX_EFI_H |
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| 2 | #define _SYSLINUX_EFI_H |
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| 3 | |
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| 4 | #include <syslinux/config.h> |
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| 5 | #include <core.h> |
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| 6 | #include <sys/types.h> /* needed for off_t */ |
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| 7 | //#include <syslinux/version.h> /* avoid redefinition of __STDC_VERSION__ */ |
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| 8 | |
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| 9 | /* |
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| 10 | * gnu-efi >= 3.0s enables GNU_EFI_USE_MS_ABI by default, which means |
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| 11 | * that we must also enable it if supported by the compiler. Note that |
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| 12 | * failing to enable GNU_EFI_USE_MS_ABI if gnu-efi was compiled with |
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| 13 | * it on will result in undefined references to uefi_call_wrapper(). |
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| 14 | * |
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| 15 | * The reason we don't attempt to check the version of gnu-efi we're |
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| 16 | * building against is because there's no harm in turning it on for |
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| 17 | * older versions - it will just be ignored. |
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| 18 | */ |
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| 19 | #if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)) |
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| 20 | #define GNU_EFI_USE_MS_ABI 1 |
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| 21 | #endif |
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| 22 | |
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| 23 | #include <efi.h> |
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| 24 | #include <efilib.h> |
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| 25 | #include <efistdarg.h> |
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| 26 | |
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| 27 | /* Delay for 100 ms */ |
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| 28 | #define EFI_NOMAP_PRINT_DELAY 100 |
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| 29 | /* We should keep EFI_NOMAP_PRINT_COUNT at 10 to limit flooding the console */ |
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| 30 | #define EFI_NOMAP_PRINT_COUNT 10 |
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| 31 | |
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| 32 | struct efi_disk_private { |
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| 33 | EFI_HANDLE dev_handle; |
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| 34 | EFI_BLOCK_IO *bio; |
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| 35 | EFI_DISK_IO *dio; |
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| 36 | }; |
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| 37 | |
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| 38 | struct efi_binding { |
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| 39 | EFI_SERVICE_BINDING *binding; |
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| 40 | EFI_HANDLE parent; |
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| 41 | EFI_HANDLE child; |
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| 42 | EFI_HANDLE this; |
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| 43 | }; |
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| 44 | |
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| 45 | extern EFI_HANDLE image_handle; |
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| 46 | |
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| 47 | struct screen_info; |
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| 48 | extern void setup_screen(struct screen_info *); |
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| 49 | |
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| 50 | extern void efi_write_char(uint8_t, uint8_t); |
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| 51 | |
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| 52 | enum heap; |
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| 53 | extern void *efi_malloc(size_t, enum heap, size_t); |
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| 54 | extern void *efi_realloc(void *, size_t); |
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| 55 | extern void efi_free(void *); |
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| 56 | |
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| 57 | extern struct efi_binding *efi_create_binding(EFI_GUID *, EFI_GUID *); |
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| 58 | extern void efi_destroy_binding(struct efi_binding *, EFI_GUID *); |
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| 59 | |
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| 60 | static inline EFI_STATUS |
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| 61 | efi_setup_event(EFI_EVENT *ev, EFI_EVENT_NOTIFY func, void *ctx) |
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| 62 | { |
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| 63 | EFI_STATUS status; |
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| 64 | |
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| 65 | status = uefi_call_wrapper(BS->CreateEvent, 5, EVT_NOTIFY_SIGNAL, |
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| 66 | TPL_CALLBACK, func, ctx, ev); |
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| 67 | return status; |
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| 68 | } |
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| 69 | |
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| 70 | extern void efi_derivative(enum syslinux_filesystem fs); |
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| 71 | |
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| 72 | struct boot_params; |
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| 73 | typedef void (handover_func_t)(void *, EFI_SYSTEM_TABLE *, |
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| 74 | struct boot_params *, unsigned long); |
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| 75 | |
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| 76 | handover_func_t efi_handover_32; |
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| 77 | handover_func_t efi_handover_64; |
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| 78 | handover_func_t efi_handover; |
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| 79 | |
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| 80 | extern void efi_console_save(void); |
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| 81 | extern void efi_console_restore(void); |
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| 82 | |
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| 83 | #endif /* _SYSLINUX_EFI_H */ |
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