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This commit is contained in:
Jaby
2024-06-07 07:36:24 +02:00
parent d9ab571e8b
commit a63df8a7b6
10 changed files with 108 additions and 89 deletions
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70
src/Library/internal-include/CD/cd_internal.hpp
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@@ -1,5 +1,6 @@
#pragma once
#include "cd_types.hpp"
#include <PSX/System/syscalls.hpp>
namespace JabyEngine {
namespace CD {
@@ -19,33 +20,52 @@ namespace JabyEngine {
extern uint8_t cmd_interrupt_bit;
struct Command {
static void wait_completed() {
while(const_cast<volatile uint8_t&>(cmd_interrupt_bit) > 0);
}
struct Internal {
static void wait_completed(CD_IO::Interrupt::Type irq) {
while(bit::is_set(const_cast<volatile uint8_t&>(cmd_interrupt_bit), irq));
}
static void wait_completed_irq(CD_IO::Interrupt::Type irq) {
static const auto get_next_irq = []() -> CD_IO::Interrupt::Type {
CD_IO::Interrupt::Type cur_irq;
do {
cur_irq = CD_IO::Interrupt::get_type(CD_IO::PortIndex1::InterruptFlag);
} while(cur_irq == CD_IO::Interrupt::None);
CD_IO::Interrupt::ack_extended(CD_IO::PortIndex1::InterruptFlag);
cmd_interrupt_bit = bit::clear(cmd_interrupt_bit, cur_irq);
return cur_irq;
};
CD_IO::PortIndex1::change_to();
while(get_next_irq() != irq);
CD_IO::PortIndex0::change_to();
}
template<typename...ARGS>
static void send(IOPort<CD_IO::CommandFifo>& cmd_fifo, IOPort<CD_IO::ParameterFifo>& parameter_fifo, CD_IO::Command::Desc cmd, ARGS...args) {
while(CD_IO::IndexStatus.read().is_set(CD_IO::IndexStatus::IsTransmissionBusy));
cmd_interrupt_bit = bit::set(cmd_interrupt_bit, cmd.complete_irq);
((parameter_fifo.write(CD_IO::ParameterFifo{args})),...);
cmd_fifo.write(CD_IO::CommandFifo {cmd.id});
}
};
// Requires Index 0
template<typename...ARGS>
static void send(IOPort<CD_IO::CommandFifo>& cmd_fifo, IOPort<CD_IO::ParameterFifo>& parameter_fifo, CD_IO::Command::Desc cmd, ARGS...args) {
while(CD_IO::IndexStatus.read().is_set(CD_IO::IndexStatus::IsTransmissionBusy));
cmd_interrupt_bit = bit::set(0, cmd.complete_irq);
((parameter_fifo.write(CD_IO::ParameterFifo{args})),...);
cmd_fifo.write(CD_IO::CommandFifo {cmd.id});
}
template<typename T, typename...ARGS>
static void send(CD_IO::Command::Desc cmd, ARGS...args) {
send(T::CommandFifo, T::ParameterFifo, cmd, args...);
}
template<typename...ARGS>
static void send_wait(IOPort<CD_IO::CommandFifo>& cmd_fifo, IOPort<CD_IO::ParameterFifo>& parameter_fifo, CD_IO::Command::Desc cmd, ARGS...args) {
send(cmd_fifo, parameter_fifo, cmd, args...);
wait_completed();
}
template<typename T, typename...ARGS>
static void send_wait(CD_IO::Command::Desc cmd, ARGS...args) {
send_wait(T::CommandFifo, T::ParameterFifo, cmd, args...);
SysCall::EnterCriticalSection();
Internal::send(CD_IO::PortIndex0::CommandFifo, CD_IO::PortIndex0::ParameterFifo, cmd, args...);
SysCall::ExitCriticalSection();
Internal::wait_completed(cmd.complete_irq);
}
// Requires Index 0
template<typename...ARGS>
static void send_wait_irq(CD_IO::Command::Desc cmd, ARGS...args) {
Internal::send(CD_IO::PortIndex0::CommandFifo, CD_IO::PortIndex0::ParameterFifo, cmd, args...);
Internal::wait_completed_irq(cmd.complete_irq);
}
};
@@ -68,7 +88,7 @@ namespace JabyEngine {
static void pause() {
CD_IO::PortIndex0::change_to();
Command::send<CD_IO::PortIndex0>(CD_IO::Command::Pause);
Command::send_wait(CD_IO::Command::Pause);
}
}
}