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xhci: add some capability definitions.

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* scratchpad buffer shouldn't cross the page boundary,
the maximum with the rest bytes in the page is 2048 / 8.
This commit is contained in:
Jérôme Duval 2017-08-01 17:08:43 +02:00
parent ce24655733
commit 4c774d6f94
1 changed files with 16 additions and 1 deletions
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17
src/add-ons/kernel/busses/usb/xhci_hardware.h
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@ -43,6 +43,20 @@
#define HCS_U1_DEVICE_LATENCY(p) (((p) >> 0) & 0xff)
#define HCS_U2_DEVICE_LATENCY(p) (((p) >> 16) & 0xffff)
#define XHCI_HCCPARAMS 0x10 // Capability Parameters
#define HCC_AC64(p) (((p) >> 0) & 0x1)
#define HCC_BNC(p) (((p) >> 1) & 0x1)
#define HCC_CSZ(p) (((p) >> 2) & 0x1)
#define HCC_PPC(p) (((p) >> 3) & 0x1)
#define HCC_PIND(p) (((p) >> 4) & 0x1)
#define HCC_LHRC(p) (((p) >> 5) & 0x1)
#define HCC_LTC(p) (((p) >> 6) & 0x1)
#define HCC_NSS(p) (((p) >> 7) & 0x1)
#define HCC_PAE(p) (((p) >> 8) & 0x1)
#define HCC_SPC(p) (((p) >> 9) & 0x1)
#define HCC_SEC(p) (((p) >> 10) & 0x1)
#define HCC_CFC(p) (((p) >> 11) & 0x1)
#define HCC_MAXPSASIZE(p) (((p) >> 12) & 0xf)
#define HCC_XECP(p) (((p) >> 16) & 0xfff)
#define XHCI_DBOFF 0x14 // Doorbell Register offset
#define XHCI_RTSOFF 0x18 // Runtime Register Space offset
@ -288,7 +302,8 @@
#define XHCI_MAX_SLOTS 255
#define XHCI_MAX_PORTS 127
#define XHCI_MAX_ENDPOINTS 32
#define XHCI_MAX_SCRATCHPADS 1024
// the spec says 1023, however this would cross the page boundary
#define XHCI_MAX_SCRATCHPADS 256
#define XHCI_MAX_DEVICES 128
#define XHCI_MAX_TRANSFERS 8
#define XHCI_MAX_TRBS_PER_TD 18