[−][src]Module sunrise_ahci::pci

PCI discovery

A minimal PCI implementation, that permits only discovering AHCI devices, and querying their BAR.

Structs

PciConfigPortsPair	A struct tying the two pci config ports together.
PciDevice	A pci device, addressed by its bus number, slot, and function.
PciHeader00	Pci header when Header Type == 0x00 (General device).

BAR	Base Address Registers. Minimal implementation, does not support 64-bits BARs.
PciHeader	Contents of pci config registers 0x4-0xf, structure varies based on Header Type.

CONFIG_ADDRESS	The CONFIG_ADDRESS I/O location.
CONFIG_DATA	The CONFIG_DATA I/O location.
MAX_BUS	The highest addressable bus.
MAX_FUNC	The highest addressable function on a slot on a bus.
MAX_REGISTER	The highest addressable register on a function on a slot on a bus.
MAX_SLOT	The highest addressable slot on a bus.

A mutex around the two ports used to address pci configuration space.

discover	Discover all pci devices, by probing the PID-VID of every slot on every bus.
get_ahci_controllers	Gets the ahci controllers found by pci discovery.
pci_config_read_word	Read one of the 64 32-bit registers of a pci bus>device>func.
pci_config_write_word	Read one of the 64 32-bit registers of a pci bus>device>func.