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Added a keep_port_ownership driver setting for EHCI, to allow keeping devices on EHCI instead of giving them up to the 1.0 controller.

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Hopefully this will get things working here until OHCI is implemented.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21231 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
François Revol 2007-05-24 21:45:11 +00:00
parent 9a36f03a87
commit 3d5bdb8688
2 changed files with 11 additions and 2 deletions
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12
src/add-ons/kernel/busses/usb/ehci.cpp
View File

@ -10,6 +10,7 @@
#include <PCI.h>
#include <USB3.h>
#include <KernelExport.h>
#include <driver_settings.h>
#include "ehci.h"
@ -110,6 +111,7 @@ EHCI::EHCI(pci_info *info, Stack *stack)
fFreeListHead(NULL),
fRootHub(NULL),
fRootHubAddress(0),
fKeepPortOwnership(false),
fPortCount(0),
fPortResetChange(0),
fPortSuspendChange(0)
@ -122,6 +124,12 @@ EHCI::EHCI(pci_info *info, Stack *stack)
TRACE(("usb_ehci: constructing new EHCI Host Controller Driver\n"));
fInitOK = false;
void *handle = load_driver_settings("ehci");
if (handle) {
fKeepPortOwnership = get_driver_boolean_parameter(handle, "keep_port_ownership", false, true);
unload_driver_settings(handle);
}
// enable busmaster and memory mapped access
uint16 command = sPCIModule->read_pci_config(fPCIInfo->bus,
fPCIInfo->device, fPCIInfo->function, PCI_command, 2);
@ -677,7 +685,7 @@ EHCI::ResetPort(uint8 index)
uint32 portRegister = EHCI_PORTSC + index * sizeof(uint32);
uint32 portStatus = ReadOpReg(portRegister) & EHCI_PORTSC_DATAMASK;
if (portStatus & EHCI_PORTSC_DMINUS) {
if (!fKeepPortOwnership && (portStatus & EHCI_PORTSC_DMINUS)) {
TRACE(("usb_ehci: lowspeed device connected, giving up port ownership\n"));
// there is a lowspeed device connected.
// we give the ownership to a companion controller.
@ -701,7 +709,7 @@ EHCI::ResetPort(uint8 index)
return B_ERROR;
}
if ((portStatus & EHCI_PORTSC_ENABLE) == 0) {
if (!fKeepPortOwnership && (portStatus & EHCI_PORTSC_ENABLE) == 0) {
TRACE(("usb_ehci: fullspeed device connected, giving up port ownership\n"));
// the port was not enabled, this means that no high speed device is
// attached to this port. we give up ownership to a companion controler

1
src/add-ons/kernel/busses/usb/ehci.h
View File

@ -156,6 +156,7 @@ static pci_module_info *sPCIModule;
uint8 fRootHubAddress;
// Port management
bool fKeepPortOwnership;
uint8 fPortCount;
uint16 fPortResetChange;
uint16 fPortSuspendChange;