diff options
Diffstat (limited to 'src/core/hle/ipc_helpers.h')
-rw-r--r-- | src/core/hle/ipc_helpers.h | 170 |
1 files changed, 124 insertions, 46 deletions
diff --git a/src/core/hle/ipc_helpers.h b/src/core/hle/ipc_helpers.h index 323158bb5..06c4c5a85 100644 --- a/src/core/hle/ipc_helpers.h +++ b/src/core/hle/ipc_helpers.h @@ -27,6 +27,24 @@ public: DEBUG_ASSERT_MSG(index == TotalSize(), "Operations do not match the header (cmd 0x%x)", header.raw); } + + void Skip(unsigned size_in_words, bool set_to_null) { + if (set_to_null) + memset(cmdbuf + index, 0, size_in_words * sizeof(u32)); + index += size_in_words; + } + + /** + * @brief Retrieves the address of a static buffer, used when a buffer is needed for output + * @param buffer_id The index of the static buffer + * @param data_size If non-null, will store the size of the buffer + */ + VAddr PeekStaticBuffer(u8 buffer_id, size_t* data_size = nullptr) const { + u32* static_buffer = cmdbuf + Kernel::kStaticBuffersOffset / sizeof(u32) + buffer_id * 2; + if (data_size) + *data_size = StaticBufferDescInfo{static_buffer[0]}.size; + return static_buffer[1]; + } }; class RequestBuilder : public RequestHelperBase { @@ -50,14 +68,8 @@ public: template <typename T> void Push(T value); - void Push(u32 value) { - cmdbuf[index++] = value; - } template <typename First, typename... Other> - void Push(const First& first_value, const Other&... other_values) { - Push(first_value); - Push(other_values...); - } + void Push(const First& first_value, const Other&... other_values); /** * @brief Copies the content of the given trivially copyable class to the buffer as a normal @@ -65,59 +77,96 @@ public: * @note: The input class must be correctly packed/padded to fit hardware layout. */ template <typename T> - void PushRaw(const T& value) { - static_assert(std::is_trivially_copyable<T>(), "Raw types should be trivially copyable"); - std::memcpy(cmdbuf + index, &value, sizeof(T)); - index += (sizeof(T) + 3) / 4; // round up to word length - } + void PushRaw(const T& value); // TODO : ensure that translate params are added after all regular params template <typename... H> - void PushCopyHandles(H... handles) { - Push(CopyHandleDesc(sizeof...(H))); - Push(static_cast<Kernel::Handle>(handles)...); - } + void PushCopyHandles(H... handles); template <typename... H> - void PushMoveHandles(H... handles) { - Push(MoveHandleDesc(sizeof...(H))); - Push(static_cast<Kernel::Handle>(handles)...); - } + void PushMoveHandles(H... handles); - void PushCurrentPIDHandle() { - Push(CallingPidDesc()); - Push(u32(0)); - } + void PushCurrentPIDHandle(); - void PushStaticBuffer(VAddr buffer_vaddr, u32 size, u8 buffer_id) { - Push(StaticBufferDesc(size, buffer_id)); - Push(buffer_vaddr); - } + void PushStaticBuffer(VAddr buffer_vaddr, u32 size, u8 buffer_id); - void PushMappedBuffer(VAddr buffer_vaddr, u32 size, MappedBufferPermissions perms) { - Push(MappedBufferDesc(size, perms)); - Push(buffer_vaddr); - } + void PushMappedBuffer(VAddr buffer_vaddr, u32 size, MappedBufferPermissions perms); }; /// Push /// template <> -inline void RequestBuilder::Push<u32>(u32 value) { - Push(value); +inline void RequestBuilder::Push(u32 value) { + cmdbuf[index++] = value; +} + +template <typename T> +void RequestBuilder::PushRaw(const T& value) { + static_assert(std::is_trivially_copyable<T>(), "Raw types should be trivially copyable"); + std::memcpy(cmdbuf + index, &value, sizeof(T)); + index += (sizeof(T) + 3) / 4; // round up to word length } template <> -inline void RequestBuilder::Push<u64>(u64 value) { +inline void RequestBuilder::Push(u8 value) { + PushRaw(value); +} + +template <> +inline void RequestBuilder::Push(u16 value) { + PushRaw(value); +} + +template <> +inline void RequestBuilder::Push(u64 value) { Push(static_cast<u32>(value)); Push(static_cast<u32>(value >> 32)); } template <> -inline void RequestBuilder::Push<ResultCode>(ResultCode value) { +inline void RequestBuilder::Push(bool value) { + Push(static_cast<u8>(value)); +} + +template <> +inline void RequestBuilder::Push(ResultCode value) { Push(value.raw); } +template <typename First, typename... Other> +void RequestBuilder::Push(const First& first_value, const Other&... other_values) { + Push(first_value); + Push(other_values...); +} + +template <typename... H> +inline void RequestBuilder::PushCopyHandles(H... handles) { + Push(CopyHandleDesc(sizeof...(H))); + Push(static_cast<Kernel::Handle>(handles)...); +} + +template <typename... H> +inline void RequestBuilder::PushMoveHandles(H... handles) { + Push(MoveHandleDesc(sizeof...(H))); + Push(static_cast<Kernel::Handle>(handles)...); +} + +inline void RequestBuilder::PushCurrentPIDHandle() { + Push(CallingPidDesc()); + Push(u32(0)); +} + +inline void RequestBuilder::PushStaticBuffer(VAddr buffer_vaddr, u32 size, u8 buffer_id) { + Push(StaticBufferDesc(size, buffer_id)); + Push(buffer_vaddr); +} + +inline void RequestBuilder::PushMappedBuffer(VAddr buffer_vaddr, u32 size, + MappedBufferPermissions perms) { + Push(MappedBufferDesc(size, perms)); + Push(buffer_vaddr); +} + class RequestParser : public RequestHelperBase { public: RequestParser(u32* command_buffer, Header command_header) @@ -185,24 +234,60 @@ public: */ template <typename T> void PopRaw(T& value); + + /** + * @brief Reads the next normal parameters as a struct, by copying it into a new value + * @note: The output class must be correctly packed/padded to fit hardware layout. + */ + template <typename T> + T PopRaw(); }; /// Pop /// template <> -inline u32 RequestParser::Pop<u32>() { +inline u32 RequestParser::Pop() { return cmdbuf[index++]; } +template <typename T> +void RequestParser::PopRaw(T& value) { + static_assert(std::is_trivially_copyable<T>(), "Raw types should be trivially copyable"); + std::memcpy(&value, cmdbuf + index, sizeof(T)); + index += (sizeof(T) + 3) / 4; // round up to word length +} + +template <typename T> +T RequestParser::PopRaw() { + T value; + PopRaw(value); + return value; +} + +template <> +inline u8 RequestParser::Pop() { + return PopRaw<u8>(); +} + template <> -inline u64 RequestParser::Pop<u64>() { +inline u16 RequestParser::Pop() { + return PopRaw<u16>(); +} + +template <> +inline u64 RequestParser::Pop() { const u64 lsw = Pop<u32>(); const u64 msw = Pop<u32>(); return msw << 32 | lsw; } template <> -inline ResultCode RequestParser::Pop<ResultCode>() { +inline bool RequestParser::Pop() { + return Pop<u8>() != 0; +} + +template <> +inline ResultCode RequestParser::Pop() { return ResultCode{Pop<u32>()}; } @@ -265,11 +350,4 @@ inline VAddr RequestParser::PopMappedBuffer(size_t* data_size, return Pop<VAddr>(); } -template <typename T> -void RequestParser::PopRaw(T& value) { - static_assert(std::is_trivially_copyable<T>(), "Raw types should be trivially copyable"); - std::memcpy(&value, cmdbuf + index, sizeof(T)); - index += (sizeof(T) + 3) / 4; // round up to word length -} - } // namespace IPC |