diff options
Diffstat (limited to 'gpxe/src/include/gpxe/efi/efi_pci.h')
-rw-r--r-- | gpxe/src/include/gpxe/efi/efi_pci.h | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/gpxe/src/include/gpxe/efi/efi_pci.h b/gpxe/src/include/gpxe/efi/efi_pci.h deleted file mode 100644 index 59c0eb1d..00000000 --- a/gpxe/src/include/gpxe/efi/efi_pci.h +++ /dev/null @@ -1,148 +0,0 @@ -#ifndef _GPXE_EFI_PCI_H -#define _GPXE_EFI_PCI_H - -/** @file - * - * gPXE PCI I/O API for EFI - * - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -#ifdef PCIAPI_EFI -#define PCIAPI_PREFIX_efi -#else -#define PCIAPI_PREFIX_efi __efi_ -#endif - -/* EFI PCI width codes defined by EFI spec */ -#define EFIPCI_WIDTH_BYTE 0 -#define EFIPCI_WIDTH_WORD 1 -#define EFIPCI_WIDTH_DWORD 2 - -#define EFIPCI_LOCATION( _offset, _width ) \ - ( (_offset) | ( (_width) << 16 ) ) -#define EFIPCI_OFFSET( _location ) ( (_location) & 0xffff ) -#define EFIPCI_WIDTH( _location ) ( (_location) >> 16 ) - -struct pci_device; - -extern int efipci_read ( struct pci_device *pci, unsigned long location, - void *value ); -extern int efipci_write ( struct pci_device *pci, unsigned long location, - unsigned long value ); - -/** - * Determine maximum PCI bus number within system - * - * @ret max_bus Maximum bus number - */ -static inline __always_inline int -PCIAPI_INLINE ( efi, pci_max_bus ) ( void ) { - /* No way to work this out via EFI */ - return 0xff; -} - -/** - * Read byte from PCI configuration space via EFI - * - * @v pci PCI device - * @v where Location within PCI configuration space - * @v value Value read - * @ret rc Return status code - */ -static inline __always_inline int -PCIAPI_INLINE ( efi, pci_read_config_byte ) ( struct pci_device *pci, - unsigned int where, - uint8_t *value ) { - return efipci_read ( pci, - EFIPCI_LOCATION ( where, EFIPCI_WIDTH_BYTE ), - value ); -} - -/** - * Read word from PCI configuration space via EFI - * - * @v pci PCI device - * @v where Location within PCI configuration space - * @v value Value read - * @ret rc Return status code - */ -static inline __always_inline int -PCIAPI_INLINE ( efi, pci_read_config_word ) ( struct pci_device *pci, - unsigned int where, - uint16_t *value ) { - return efipci_read ( pci, - EFIPCI_LOCATION ( where, EFIPCI_WIDTH_WORD ), - value ); -} - -/** - * Read dword from PCI configuration space via EFI - * - * @v pci PCI device - * @v where Location within PCI configuration space - * @v value Value read - * @ret rc Return status code - */ -static inline __always_inline int -PCIAPI_INLINE ( efi, pci_read_config_dword ) ( struct pci_device *pci, - unsigned int where, - uint32_t *value ) { - return efipci_read ( pci, - EFIPCI_LOCATION ( where, EFIPCI_WIDTH_DWORD ), - value ); -} - -/** - * Write byte to PCI configuration space via EFI - * - * @v pci PCI device - * @v where Location within PCI configuration space - * @v value Value to be written - * @ret rc Return status code - */ -static inline __always_inline int -PCIAPI_INLINE ( efi, pci_write_config_byte ) ( struct pci_device *pci, - unsigned int where, - uint8_t value ) { - return efipci_write ( pci, - EFIPCI_LOCATION ( where, EFIPCI_WIDTH_BYTE ), - value ); -} - -/** - * Write word to PCI configuration space via EFI - * - * @v pci PCI device - * @v where Location within PCI configuration space - * @v value Value to be written - * @ret rc Return status code - */ -static inline __always_inline int -PCIAPI_INLINE ( efi, pci_write_config_word ) ( struct pci_device *pci, - unsigned int where, - uint16_t value ) { - return efipci_write ( pci, - EFIPCI_LOCATION ( where, EFIPCI_WIDTH_WORD ), - value ); -} - -/** - * Write dword to PCI configuration space via EFI - * - * @v pci PCI device - * @v where Location within PCI configuration space - * @v value Value to be written - * @ret rc Return status code - */ -static inline __always_inline int -PCIAPI_INLINE ( efi, pci_write_config_dword ) ( struct pci_device *pci, - unsigned int where, - uint32_t value ) { - return efipci_write ( pci, - EFIPCI_LOCATION ( where, EFIPCI_WIDTH_DWORD ), - value ); -} - -#endif /* _GPXE_EFI_PCI_H */ |