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[Voyageurs] XHCI Event Segment working with polling.

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Drew Galbraith 2024-02-22 13:25:49 -08:00
parent b41784b938
commit 4cb0b0b2ae
8 changed files with 181 additions and 21 deletions
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39
sys/voyageurs/xhci/trb.cpp
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@ -1,10 +1,47 @@
#include "xhci/trb.h"
constexpr uint8_t kTrb_Normal = 1;
constexpr uint8_t kTrb_SetupStage = 2;
constexpr uint8_t kTrb_DataStage = 3;
constexpr uint8_t kTrb_StatusStage = 4;
constexpr uint8_t kTrb_Isoch = 5;
constexpr uint8_t kTrb_Link = 6;
constexpr uint8_t kTrb_EventData = 7;
constexpr uint8_t kTrb_NoOp = 8;
constexpr uint8_t kTrb_EnableSlot = 9;
constexpr uint8_t kTrb_DisableSlot = 10;
constexpr uint8_t kTrb_NoOpCommand = 23;
constexpr uint8_t kTrb_TypeOffset = 10;
constexpr uint8_t kTrb_Cycle = 1;
XhciTrb CreateLinkTrb(uint64_t physical_address) {
return {
.parameter = physical_address,
.status = 0,
.type_and_cycle = 6 << 10,
.type_and_cycle = kTrb_Link << kTrb_TypeOffset,
.control = 0,
};
}
XhciTrb CreateEnableSlotTrb() {
return {
.parameter = 0,
.status = 0,
// FIXME: Accept Cycle Bit as a parameter.
.type_and_cycle = kTrb_EnableSlot << kTrb_TypeOffset | kTrb_Cycle,
// FIXME: Specify slot type if necessary. (XHCI Table 7-9)?
.control = 0,
};
}
XhciTrb CreateNoOpCommandTrb() {
return {
.parameter = 0,
.status = 0,
// FIXME: Accept Cycle Bit as a parameter.
.type_and_cycle = kTrb_NoOpCommand << kTrb_TypeOffset | kTrb_Cycle,
.control = 0,
};
}