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[Voyageurs] Move NormalTrb generation into helper func.

This commit is contained in:
Drew Galbraith 2024-02-24 14:31:14 -08:00
parent e6b232851e
commit 3c1e435e04
3 changed files with 17 additions and 12 deletions
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16
sys/voyageurs/xhci/endpoint.cpp
View File

@ -2,6 +2,8 @@
#include <mammoth/util/debug.h>
#include "xhci/trb.h"
void Endpoint::Initialize(XhciEndpointContext* context) {
enabled_ = true;
context_ = context;
@ -13,12 +15,7 @@ void Endpoint::Initialize(XhciEndpointContext* context) {
context_->error_and_type = (0x3 << 1) | (0x7 << 3) | (0x8 << 16);
for (uint64_t i = 0; i < 10; i++) {
trb_ring_->EnqueueTrb({
.parameter = recv_phys_ + offset_,
.status = 8,
.type_and_cycle = 1 | (1 << 2) | (1 << 5) | (1 << 10),
.control = 0,
});
trb_ring_->EnqueueTrb(CreateNormalTrb(recv_phys_ + offset_, 8));
offset_ += 8;
}
}
@ -27,11 +24,6 @@ void Endpoint::TransferComplete(uint64_t trb_phys) {
uint64_t phys_offset =
(trb_phys - trb_ring_->PhysicalAddress()) / sizeof(XhciTrb);
dbgln("Data: {x}", *((uint64_t*)recv_mem_.vaddr() + phys_offset));
trb_ring_->EnqueueTrb({
.parameter = recv_phys_ + offset_,
.status = 8,
.type_and_cycle = 1 | (1 << 2) | (1 << 5) | (1 << 10),
.control = 0,
});
trb_ring_->EnqueueTrb(CreateNormalTrb(recv_phys_ + offset_, 8));
offset_ += 8;
}

12
sys/voyageurs/xhci/trb.cpp
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@ -4,6 +4,8 @@ constexpr uint8_t kTrb_TypeOffset = 10;
constexpr uint16_t kTrb_Cycle = 1;
constexpr uint16_t kTrb_ToggleCycle = (1 << 1);
constexpr uint16_t kTrb_InterruptShortPacket = (1 << 2);
constexpr uint16_t kTrb_Interrupt = (1 << 5);
constexpr uint16_t kTrb_BSR = (1 << 9);
namespace {
@ -18,6 +20,16 @@ TrbType GetType(const XhciTrb& trb) {
return TrbType(trb.type_and_cycle >> kTrb_TypeOffset);
}
XhciTrb CreateNormalTrb(uint64_t physical_address, uint8_t size) {
return {
.parameter = physical_address,
.status = size,
.type_and_cycle = (uint16_t)(TypeToInt(TrbType::Normal) | kTrb_Cycle |
kTrb_Interrupt | kTrb_InterruptShortPacket),
.control = 0,
};
}
XhciTrb CreateLinkTrb(uint64_t physical_address) {
return {
.parameter = physical_address,

1
sys/voyageurs/xhci/trb.h
View File

@ -29,6 +29,7 @@ enum class TrbType : uint8_t {
TrbType GetType(const XhciTrb& trb);
XhciTrb CreateNormalTrb(uint64_t physical_address, uint8_t size);
XhciTrb CreateLinkTrb(uint64_t physical_address);
XhciTrb CreateEnableSlotTrb();