pci.h File Reference

PCI configuration library. More...

Functions
errval_t	pci_register_legacy_driver_irq (legacy_driver_init_fn init_func, uint16_t iomin, uint16_t iomax, int irq, interrupt_handler_fn handler, void *handler_arg)
errval_t	pci_register_legacy_driver_irq_cap (legacy_driver_init_fn init_func, uint16_t iomin, uint16_t iomax, int irq_idx, interrupt_handler_fn handler, void *handler_arg)
errval_t	pci_msix_enable (uint16_t *count)
errval_t	pci_msix_enable_addr (struct pci_address *addr, uint16_t *count)
	enables MSI-X interupts for a given device More...
errval_t	pci_msix_vector_init (uint16_t index, uint8_t destination, uint8_t vector)
errval_t	pci_msix_vector_init_addr (struct pci_address *addr, uint16_t index, uint8_t destination, uint8_t vector)

Detailed Description

PCI configuration library.

Function Documentation

errval_t pci_msix_enable

(

uint16_t *

count

)

Enable MSI-X for the PCI device

Parameters

count

Memory location where the number of supported vectors is written

errval_t pci_msix_enable_addr	(	struct pci_address *	addr,
		uint16_t *	count
	)

enables MSI-X interupts for a given device

Parameters

addr	PCI address of the device to activate or NULL if don't care
count	returns the number of supported MSI-X interrupts

Returns

SYS_ERR_OK on success errval on FAILURE

errval_t pci_msix_vector_init	(	uint16_t	index,
		uint8_t	destination,
		uint8_t	vector
	)

Configure an MSI-X vector

Parameters

index	MSI-X Vector index
destination	Destination APIC where the interrupt should be sent
vector	Interrupt vector to send

errval_t pci_msix_vector_init_addr	(	struct pci_address *	addr,
		uint16_t	index,
		uint8_t	destination,
		uint8_t	vector
	)

Configure an MSI-X vector

Parameters

addr	PCI address of the device to activate or NULL if don't care
index	MSI-X Vector index
destination	Destination APIC where the interrupt should be sent
vector	Interrupt vector to send

errval_t pci_register_legacy_driver_irq	(	legacy_driver_init_fn	init_func,
		uint16_t	iomin,
		uint16_t	iomax,
		int	irq,
		interrupt_handler_fn	handler,
		void *	handler_arg
	)

Deprecated. Use pci_register_legacy_driver_irq_cap.

errval_t pci_register_legacy_driver_irq_cap	(	legacy_driver_init_fn	init_func,
		uint16_t	iomin,
		uint16_t	iomax,
		int	irq_idx,
		interrupt_handler_fn	handler,
		void *	handler_arg
	)

Register a legacy device driver. The driver can specify a range of IO ports that he wants to access.

Parameters

init_func	Callback function that will be called once pci_client is initialized.
iomin	I/O range minimum
iomax	I/O range maximum
irq_idx	Interrupt cap index
interrupt_handler	The handler function when a interrupt is triggered.
handler_arg	Argument for interrupt_handler