pci_find_class_code(D3hpci)

pci_find_class_code -- search for a PCI device by class code

Synopsis

   #include <sys/types.h>
   #include <sys/hpci.h>
   #include <sys/hpci_bios.h>
   #include <sys/ddi.h>
   
   int pci_find_pci_class_code(rm_key_t hpci, uchar_t *bus, uchar_t *devfun,
                  uint_t classcode, ushort_t index);

Description

pci_find_class_code( ) searches for a PCI device by classcode.

Arguments

hpci

resource manager key for this instance of the hot plug controller.

bus

devfun

device/function number, defined as:

   (devnum << 3) | (function)

classcode

Classcode as defined in the PCI 2.1 specification. This is a read-only register that is used to identify the generic function of the device and, in some cases, a specific register-level programming interface. HPCI version 1 recognizes the following classcodes:

PCI_BASE_CLASS_PCC
PCI_BASE_CLASS_MASS_STORAGE
PCI_BASE_CLASS_NETWORK
PCI_BASE_CLASS_DISPLAY
PCI_BASE_CLASS_MULTIMEDIA
PCI_BASE_CLASS_MEMORY
PCI_BASE_CLASS_BRIDGE
PCI_BASE_CLASS_COMMCTLR
PCI_BASE_CLASS_GENERICPERIPH
PCI_BASE_CLASS_INPUTDEVICE
PCI_BASE_CLASS_DOCKINGSTATION
PCI_BASE_CLASS_PROCESSOR
PCI_BASE_CLASS_SERIALBUS

index

can be used to iterate over multiple devices that match the same class code.

Return values

This function returns values as per corresponding 2.1 PCI BIOS calls.

Usage

Context and synchronization

Blockable context

Hardware applicability

All

Version applicability

hpci: 1

References

``Hotplug devices'' in HDK Technical Reference
``PCI'' in HDK Technical Reference