diff options
Diffstat (limited to 'debian/grub-extras/disabled/gpxe/src/include/gpxe/pci_io.h')
-rw-r--r-- | debian/grub-extras/disabled/gpxe/src/include/gpxe/pci_io.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/debian/grub-extras/disabled/gpxe/src/include/gpxe/pci_io.h b/debian/grub-extras/disabled/gpxe/src/include/gpxe/pci_io.h new file mode 100644 index 0000000..8b2729a --- /dev/null +++ b/debian/grub-extras/disabled/gpxe/src/include/gpxe/pci_io.h @@ -0,0 +1,124 @@ +#ifndef _GPXE_PCI_IO_H +#define _GPXE_PCI_IO_H + +/** @file + * + * PCI I/O API + * + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <stdint.h> +#include <gpxe/api.h> +#include <config/ioapi.h> + +/** + * Calculate static inline PCI I/O API function name + * + * @v _prefix Subsystem prefix + * @v _api_func API function + * @ret _subsys_func Subsystem API function + */ +#define PCIAPI_INLINE( _subsys, _api_func ) \ + SINGLE_API_INLINE ( PCIAPI_PREFIX_ ## _subsys, _api_func ) + +/** + * Provide a PCI I/O API implementation + * + * @v _prefix Subsystem prefix + * @v _api_func API function + * @v _func Implementing function + */ +#define PROVIDE_PCIAPI( _subsys, _api_func, _func ) \ + PROVIDE_SINGLE_API ( PCIAPI_PREFIX_ ## _subsys, _api_func, _func ) + +/** + * Provide a static inline PCI I/O API implementation + * + * @v _prefix Subsystem prefix + * @v _api_func API function + */ +#define PROVIDE_PCIAPI_INLINE( _subsys, _api_func ) \ + PROVIDE_SINGLE_API_INLINE ( PCIAPI_PREFIX_ ## _subsys, _api_func ) + +/* Include all architecture-independent I/O API headers */ +#include <gpxe/efi/efi_pci.h> + +/* Include all architecture-dependent I/O API headers */ +#include <bits/pci_io.h> + +/** + * Determine maximum PCI bus number within system + * + * @ret max_bus Maximum bus number + */ +int pci_max_bus ( void ); + +/** + * Read byte from PCI configuration space + * + * @v pci PCI device + * @v where Location within PCI configuration space + * @v value Value read + * @ret rc Return status code + */ +int pci_read_config_byte ( struct pci_device *pci, unsigned int where, + uint8_t *value ); + +/** + * Read 16-bit word from PCI configuration space + * + * @v pci PCI device + * @v where Location within PCI configuration space + * @v value Value read + * @ret rc Return status code + */ +int pci_read_config_word ( struct pci_device *pci, unsigned int where, + uint16_t *value ); + +/** + * Read 32-bit dword from PCI configuration space + * + * @v pci PCI device + * @v where Location within PCI configuration space + * @v value Value read + * @ret rc Return status code + */ +int pci_read_config_dword ( struct pci_device *pci, unsigned int where, + uint32_t *value ); + +/** + * Write byte to PCI configuration space + * + * @v pci PCI device + * @v where Location within PCI configuration space + * @v value Value to be written + * @ret rc Return status code + */ +int pci_write_config_byte ( struct pci_device *pci, unsigned int where, + uint8_t value ); + +/** + * Write 16-bit word to PCI configuration space + * + * @v pci PCI device + * @v where Location within PCI configuration space + * @v value Value to be written + * @ret rc Return status code + */ +int pci_write_config_word ( struct pci_device *pci, unsigned int where, + uint16_t value ); + +/** + * Write 32-bit dword to PCI configuration space + * + * @v pci PCI device + * @v where Location within PCI configuration space + * @v value Value to be written + * @ret rc Return status code + */ +int pci_write_config_dword ( struct pci_device *pci, unsigned int where, + uint32_t value ); + +#endif /* _GPXE_PCI_IO_H */ |