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* added some EHCI definitions (specification 1.1)

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* enable per-port change events when available


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41661 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Jérôme Duval 2011-05-22 19:44:09 +00:00
parent 245423b1f3
commit c0b58c071f
2 changed files with 14 additions and 2 deletions
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6
src/add-ons/kernel/busses/usb/ehci.cpp
View File

@ -522,11 +522,15 @@ status_t
EHCI::Start()
{
TRACE("starting EHCI host controller\n");
TRACE("usbcmd: 0x%08lx; usbsts: 0x%08lx\n", ReadOpReg(EHCI_USBCMD), ReadOpReg(EHCI_USBSTS));
TRACE("usbcmd: 0x%08lx; usbsts: 0x%08lx\n", ReadOpReg(EHCI_USBCMD),
ReadOpReg(EHCI_USBSTS));
bool hasPerPortChangeEvent = (ReadCapReg32(EHCI_HCCPARAMS)
& EHCI_HCCPARAMS_PPCEC) != 0;
uint32 frameListSize = (ReadOpReg(EHCI_USBCMD) >> EHCI_USBCMD_FLS_SHIFT)
& EHCI_USBCMD_FLS_MASK;
WriteOpReg(EHCI_USBCMD, ReadOpReg(EHCI_USBCMD) | EHCI_USBCMD_RUNSTOP
| (hasPerPortChangeEvent ? EHCI_USBCMD_PPCEE : 0)
| EHCI_USBCMD_ASENABLE | EHCI_USBCMD_PSENABLE
| (frameListSize << EHCI_USBCMD_FLS_SHIFT)
| (1 << EHCI_USBCMD_ITC_SHIFT));

10
src/add-ons/kernel/busses/usb/ehci_hardware.h
View File

@ -31,11 +31,15 @@
// USB Command Register (EHCI Spec 2.3.1)
#define EHCI_USBCMD_ITC_SHIFT 16 // Interrupt Threshold Control
#define EHCI_USBCMD_ITC_MASK 0xff
#define EHCI_USBCMD_PPCEE (1 << 15) // Per-Port Change Events Enable
#define EHCI_USBCMD_FSP (1 << 14) // Fully Synchronized Prefetch
#define EHCI_USBCMD_ASPE (1 << 13) // Async Schedule Prefetch Enable
#define EHCI_USBCMD_PSPE (1 << 12) // Periodic Schedule Prefetch Enable
#define EHCI_USBCMD_ASPME (1 << 11) // Async Schedule Park Mode Enable
#define EHCI_USBCMD_ASPMC_SHIFT 8 // Async Schedule Park Mode Count
#define EHCI_USBCMD_ASPMC_MASK 0x03
#define EHCI_USBCMD_LHCRESET (1 << 7) // Light Host Controller Reset
#define EHCI_USBCMD_INTONAAD (1 << 6) // Interrupt on Async Advance Dorbell
#define EHCI_USBCMD_INTONAAD (1 << 6) // Interrupt on Async Advance Doorbell
#define EHCI_USBCMD_ASENABLE (1 << 5) // Asynchronous Schedule Enable
#define EHCI_USBCMD_PSENABLE (1 << 4) // Periodic Schedule Enable
#define EHCI_USBCMD_FLS_SHIFT 2 // Frame List Size
@ -104,6 +108,10 @@
#define EHCI_LEGSUP_OSOWNED (1 << 24) // OS Owned Semaphore
#define EHCI_LEGSUP_BIOSOWNED (1 << 16) // BIOS Owned Semaphore
#define EHCI_HCCPARAMS_FPLC (1 << 19) // 32 Frames Period List
#define EHCI_HCCPARAMS_PPCEC (1 << 18) // Per-Port Change Event
#define EHCI_HCCPARAMS_LPM (1 << 17) // Link Power Management
#define EHCI_HCCPARAMS_HP (1 << 16) // Hardware Prefetch
#define EHCI_HCCPARAMS_IPT_SHIFT 4 // Isochronous Periodic Threshold
#define EHCI_HCCPARAMS_IPT_MASK 0xf