Prepare for new IOPort code

This commit is contained in:
Jaby Blubb 2023-09-13 22:23:29 +02:00
parent 30759b85c7
commit 5f87cfee09
3 changed files with 126 additions and 0 deletions

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@ -4,6 +4,114 @@
#include "../../Auxiliary/bits.hpp"
namespace JabyEngine {
namespace New {
namespace internal {
template<typename T, typename S>
struct IOValue {
typedef S UnderlyingType;
UnderlyingType raw;
template<typename...ARGS>
static constexpr T from(const ARGS&...args) {
return T{0}.set_va(args...);
}
constexpr T& set(Bit bit) {
this->raw = bit::set(this->raw, bit);
return static_cast<T&>(*this);
}
constexpr T& set(ClearBit bit) {
this->raw = bit::set(this->raw, bit);
return *this;
}
constexpr T& set(BitRange bits, T value) {
this->raw = bit::value::set_normalized(this->raw, bits, value);
return *this;
}
template<typename U>
constexpr T& set(const BitRange::RangeValuePair<U>& value) {
this->raw = bit::value::set_normalized(this->raw, value);
return *this;
}
template<typename U>
constexpr T& set_va(const U& head) {
return this->set(head);
}
template<typename U, typename...ARGS>
constexpr T& set_va(const U& head, const ARGS&...tail) {
return this->set(head).set_va(tail...);
}
constexpr IOValue<T, S>::UnderlyingType get(BitRange bits) const {
return bit::value::get_normalized(this->raw, bits.pos, bits.length);
}
constexpr T& clear(Bit bit) {
this->raw = bit::clear(this->raw, bit);
return *this;
}
constexpr bool is_set(Bit bit) const {
return bit::is_set(this->raw, bit);
}
};
}
struct ubus32_t {
uint16_t low;
uint16_t high;
static ubus32_t from(uint32_t value) {
return {.low = static_cast<uint16_t>(value & 0xFFFF), .high = static_cast<uint16_t>(value >> 16)};
}
};
template<typename T>
struct IOPort {
T value;
T read() const {
return {const_cast<const volatile IOPort<T>*>(this)->value.raw};
}
void write(T value) {
const_cast<volatile IOPort<T>*>(this)->value.raw = value.raw;
}
};
template<>
struct IOPort<ubus32_t> {
ubus32_t value;
ubus32_t read() const {
auto*const cv_this = const_cast<const volatile IOPort<ubus32_t>*>(this);
return {.low = cv_this->value.low, .high = cv_this->value.high};
}
void write(ubus32_t value) {
auto*const cv_this = const_cast<volatile IOPort<ubus32_t>*>(this);
cv_this->value.low = value.low;
cv_this->value.high = value.high;
}
void write(uint32_t value) {
IOPort<ubus32_t>::write(ubus32_t::from(value));
}
};
#define __new_declare_io_value(name, type) struct name : public New::internal::IOValue<name, type>
#define __new_declare_io_port_w_type(type, name, adr) static auto& name = *reinterpret_cast<New::IOPort<struct type>*>(IOAdress::patch_adr(adr))
#define __new_declare_io_port(name, adr) __new_declare_io_port_w_type(name, name, adr)
}
namespace IOPort {
struct IOValueType {
template<typename T>

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@ -50,6 +50,7 @@
]
},
"settings": {
"cmake.configureOnOpen": false,
"C_Cpp.default.includePath": [
"include",
"../../include"

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@ -11,9 +11,26 @@ extern "C" uint32_t __planschi_start;
extern "C" uint32_t __planschi_end;
namespace JabyEngine {
// For now
namespace Blubb {
__new_declare_io_value(Test, uint32_t) {
};
__new_declare_io_port(Test, 0);
static void bla(New::IOPort<struct Test>& wuff) {
asm("#planschi");
const auto a = Test::from(Bit(1), Bit(2));
wuff.write(a);
wuff.write(a);
wuff.write(a);
asm("#planschi");
}
}
namespace boot {
namespace Start {
static void enable_DMA() {
::JabyEngine::Blubb::bla(::JabyEngine::Blubb::Test);
DMA_IO::DPCR = DMA_IO::DPCR_t(DMA_IO::DPCR).set(DMA_IO::DPCR_t::SPUEnable).set(DMA_IO::DPCR_t::GPUEnable).set(DMA_IO::DPCR_t::CDROMEnable);
}