commit
a1393dc70c
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@ -219,6 +219,7 @@ set(HEADERS
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hle/config_mem.h
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hle/function_wrappers.h
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hle/ipc.h
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hle/ipc_helpers.h
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hle/applets/applet.h
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hle/applets/erreula.h
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hle/applets/mii_selector.h
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@ -18,12 +18,26 @@ static const int kCommandHeaderOffset = 0x80; ///< Offset into command buffer of
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* the thread's TLS to an intermediate buffer in kernel memory, and then copied again to
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* the service handler process' memory.
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* @param offset Optional offset into command buffer
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* @param offset Optional offset into command buffer (in bytes)
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* @return Pointer to command buffer
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*/
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inline u32* GetCommandBuffer(const int offset = 0) {
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return (u32*)Memory::GetPointer(GetCurrentThread()->GetTLSAddress() + kCommandHeaderOffset +
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offset);
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}
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static const int kStaticBuffersOffset =
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0x100; ///< Offset into static buffers, relative to command buffer header
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/**
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* Returns a pointer to the static buffers area in the current thread's TLS
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* TODO(Subv): cf. GetCommandBuffer
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* @param offset Optional offset into static buffers area (in bytes)
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* @return Pointer to static buffers area
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*/
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inline u32* GetStaticBuffers(const int offset = 0) {
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return GetCommandBuffer(kStaticBuffersOffset + offset);
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}
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}
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namespace IPC {
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@ -40,10 +54,17 @@ enum DescriptorType : u32 {
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CallingPid = 0x20,
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};
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union Header {
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u32 raw;
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BitField<0, 6, u32> translate_params_size;
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BitField<6, 6, u32> normal_params_size;
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BitField<16, 16, u32> command_id;
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};
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/**
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* @brief Creates a command header to be used for IPC
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* @param command_id ID of the command to create a header for.
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* @param normal_params Size of the normal parameters in words. Up to 63.
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* @param normal_params_size Size of the normal parameters in words. Up to 63.
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* @param translate_params_size Size of the translate parameters in words. Up to 63.
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* @return The created IPC header.
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*
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@ -51,24 +72,16 @@ enum DescriptorType : u32 {
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* through modifications and checks by the kernel.
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* The translate parameters are described by headers generated with the IPC::*Desc functions.
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*
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* @note While #normal_params is equivalent to the number of normal parameters,
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* @note While #normal_params_size is equivalent to the number of normal parameters,
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* #translate_params_size includes the size occupied by the translate parameters headers.
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*/
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constexpr u32 MakeHeader(u16 command_id, unsigned int normal_params,
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unsigned int translate_params_size) {
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return (u32(command_id) << 16) | ((u32(normal_params) & 0x3F) << 6) |
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(u32(translate_params_size) & 0x3F);
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}
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union Header {
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u32 raw;
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BitField<0, 6, u32> translate_params_size;
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BitField<6, 6, u32> normal_params;
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BitField<16, 16, u32> command_id;
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};
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inline Header ParseHeader(u32 header) {
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return {header};
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inline u32 MakeHeader(u16 command_id, unsigned int normal_params_size,
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unsigned int translate_params_size) {
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Header header;
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header.command_id.Assign(command_id);
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header.normal_params_size.Assign(normal_params_size);
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header.translate_params_size.Assign(translate_params_size);
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return header.raw;
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}
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constexpr u32 MoveHandleDesc(u32 num_handles = 1) {
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@ -83,7 +96,7 @@ constexpr u32 CallingPidDesc() {
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return CallingPid;
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}
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constexpr bool isHandleDescriptor(u32 descriptor) {
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constexpr bool IsHandleDescriptor(u32 descriptor) {
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return (descriptor & 0xF) == 0x0;
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}
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@ -91,18 +104,19 @@ constexpr u32 HandleNumberFromDesc(u32 handle_descriptor) {
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return (handle_descriptor >> 26) + 1;
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}
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constexpr u32 StaticBufferDesc(u32 size, u8 buffer_id) {
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return StaticBuffer | (size << 14) | ((buffer_id & 0xF) << 10);
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}
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union StaticBufferDescInfo {
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u32 raw;
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BitField<0, 4, u32> descriptor_type;
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BitField<10, 4, u32> buffer_id;
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BitField<14, 18, u32> size;
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};
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inline StaticBufferDescInfo ParseStaticBufferDesc(const u32 desc) {
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return {desc};
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inline u32 StaticBufferDesc(u32 size, u8 buffer_id) {
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StaticBufferDescInfo info;
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info.descriptor_type.Assign(StaticBuffer);
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info.buffer_id.Assign(buffer_id);
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info.size.Assign(size);
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return info.raw;
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}
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/**
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@ -122,29 +136,30 @@ inline u32 PXIBufferDesc(u32 size, unsigned buffer_id, bool is_read_only) {
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return type | (size << 8) | ((buffer_id & 0xF) << 4);
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}
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enum MappedBufferPermissions {
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enum MappedBufferPermissions : u32 {
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R = 1,
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W = 2,
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RW = R | W,
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};
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constexpr u32 MappedBufferDesc(u32 size, MappedBufferPermissions perms) {
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return MappedBuffer | (size << 4) | (u32(perms) << 1);
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}
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union MappedBufferDescInfo {
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u32 raw;
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BitField<4, 28, u32> size;
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BitField<0, 4, u32> flags;
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BitField<1, 2, MappedBufferPermissions> perms;
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BitField<4, 28, u32> size;
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};
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inline MappedBufferDescInfo ParseMappedBufferDesc(const u32 desc) {
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return {desc};
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inline u32 MappedBufferDesc(u32 size, MappedBufferPermissions perms) {
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MappedBufferDescInfo info;
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info.flags.Assign(MappedBuffer);
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info.perms.Assign(perms);
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info.size.Assign(size);
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return info.raw;
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}
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inline DescriptorType GetDescriptorType(u32 descriptor) {
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// Note: Those checks must be done in this order
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if (isHandleDescriptor(descriptor))
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if (IsHandleDescriptor(descriptor))
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return (DescriptorType)(descriptor & 0x30);
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// handle the fact that the following descriptors can have rights
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@ -0,0 +1,275 @@
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// Copyright 2016 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include "core/hle/ipc.h"
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#include "core/hle/kernel/kernel.h"
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namespace IPC {
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class RequestHelperBase {
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protected:
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u32* cmdbuf;
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ptrdiff_t index = 1;
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Header header;
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public:
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RequestHelperBase(u32* command_buffer, Header command_header)
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: cmdbuf(command_buffer), header(command_header) {}
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/// Returns the total size of the request in words
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size_t TotalSize() const {
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return 1 /* command header */ + header.normal_params_size + header.translate_params_size;
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}
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void ValidateHeader() {
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DEBUG_ASSERT_MSG(index == TotalSize(), "Operations do not match the header (cmd 0x%x)",
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header.raw);
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}
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};
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class RequestBuilder : public RequestHelperBase {
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public:
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RequestBuilder(u32* command_buffer, Header command_header)
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: RequestHelperBase(command_buffer, command_header) {
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cmdbuf[0] = header.raw;
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}
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explicit RequestBuilder(u32* command_buffer, u32 command_header)
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: RequestBuilder(command_buffer, Header{command_header}) {}
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RequestBuilder(u32* command_buffer, u16 command_id, unsigned normal_params_size,
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unsigned translate_params_size)
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: RequestBuilder(command_buffer,
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MakeHeader(command_id, normal_params_size, translate_params_size)) {}
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// Validate on destruction, as there shouldn't be any case where we don't want it
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~RequestBuilder() {
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ValidateHeader();
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}
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template <typename T>
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void Push(T value);
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void Push(u32 value) {
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cmdbuf[index++] = value;
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}
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template <typename First, typename... Other>
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void Push(const First& first_value, const Other&... other_values) {
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Push(first_value);
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Push(other_values...);
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}
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/**
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* @brief Copies the content of the given trivially copyable class to the buffer as a normal
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* param
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* @note: The input class must be correctly packed/padded to fit hardware layout.
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*/
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template <typename T>
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void PushRaw(const T& value) {
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static_assert(std::is_trivially_copyable<T>(), "Raw types should be trivially copyable");
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std::memcpy(cmdbuf + index, &value, sizeof(T));
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index += (sizeof(T) + 3) / 4; // round up to word length
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}
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// TODO : ensure that translate params are added after all regular params
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template <typename... H>
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void PushCopyHandles(H... handles) {
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Push(CopyHandleDesc(sizeof...(H)));
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Push(static_cast<Kernel::Handle>(handles)...);
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}
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template <typename... H>
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void PushMoveHandles(H... handles) {
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Push(MoveHandleDesc(sizeof...(H)));
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Push(static_cast<Kernel::Handle>(handles)...);
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}
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void PushCurrentPIDHandle() {
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Push(CallingPidDesc());
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Push(u32(0));
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}
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void PushStaticBuffer(VAddr buffer_vaddr, u32 size, u8 buffer_id) {
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Push(StaticBufferDesc(size, buffer_id));
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Push(buffer_vaddr);
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}
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void PushMappedBuffer(VAddr buffer_vaddr, u32 size, MappedBufferPermissions perms) {
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Push(MappedBufferDesc(size, perms));
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Push(buffer_vaddr);
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}
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};
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/// Push ///
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template <>
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inline void RequestBuilder::Push<u32>(u32 value) {
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Push(value);
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}
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template <>
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inline void RequestBuilder::Push<u64>(u64 value) {
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Push(static_cast<u32>(value));
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Push(static_cast<u32>(value >> 32));
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}
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template <>
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inline void RequestBuilder::Push<ResultCode>(ResultCode value) {
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Push(value.raw);
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}
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class RequestParser : public RequestHelperBase {
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public:
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RequestParser(u32* command_buffer, Header command_header)
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: RequestHelperBase(command_buffer, command_header) {}
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explicit RequestParser(u32* command_buffer, u32 command_header)
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: RequestParser(command_buffer, Header{command_header}) {}
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RequestParser(u32* command_buffer, u16 command_id, unsigned normal_params_size,
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unsigned translate_params_size)
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: RequestParser(command_buffer,
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MakeHeader(command_id, normal_params_size, translate_params_size)) {}
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RequestBuilder MakeBuilder(u32 normal_params_size, u32 translate_params_size,
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bool validateHeader = true) {
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if (validateHeader)
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ValidateHeader();
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Header builderHeader{
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MakeHeader(header.command_id, normal_params_size, translate_params_size)};
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return {cmdbuf, builderHeader};
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}
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template <typename T>
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T Pop();
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template <typename T>
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void Pop(T& value);
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template <typename First, typename... Other>
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void Pop(First& first_value, Other&... other_values);
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Kernel::Handle PopHandle();
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template <typename... H>
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void PopHandles(H&... handles);
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/**
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* @brief Pops the static buffer vaddr
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* @return The virtual address of the buffer
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* @param[out] data_size If non-null, the pointed value will be set to the size of the data
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* @param[out] useStaticBuffersToGetVaddr Indicates if we should read the vaddr from the static
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* buffers (which is the correct thing to do, but no service presently implement it) instead of
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* using the same value as the process who sent the request
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* given by the source process
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*
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* Static buffers must be set up before any IPC request using those is sent.
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* It is the duty of the process (usually services) to allocate and set up the receiving static
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* buffer information
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* Please note that the setup uses virtual addresses.
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*/
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VAddr PopStaticBuffer(size_t* data_size = nullptr, bool useStaticBuffersToGetVaddr = false);
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/**
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* @brief Pops the mapped buffer vaddr
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* @return The virtual address of the buffer
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* @param[out] data_size If non-null, the pointed value will be set to the size of the data
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* given by the source process
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* @param[out] buffer_perms If non-null, the pointed value will be set to the permissions of the
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* buffer
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*/
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VAddr PopMappedBuffer(size_t* data_size = nullptr,
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MappedBufferPermissions* buffer_perms = nullptr);
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/**
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* @brief Reads the next normal parameters as a struct, by copying it
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* @note: The output class must be correctly packed/padded to fit hardware layout.
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*/
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template <typename T>
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void PopRaw(T& value);
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};
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/// Pop ///
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template <>
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inline u32 RequestParser::Pop<u32>() {
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return cmdbuf[index++];
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}
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template <>
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inline u64 RequestParser::Pop<u64>() {
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const u64 lsw = Pop<u32>();
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const u64 msw = Pop<u32>();
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return msw << 32 | lsw;
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}
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template <>
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inline ResultCode RequestParser::Pop<ResultCode>() {
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return ResultCode{Pop<u32>()};
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}
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template <typename T>
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void RequestParser::Pop(T& value) {
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value = Pop<T>();
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}
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template <typename First, typename... Other>
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void RequestParser::Pop(First& first_value, Other&... other_values) {
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first_value = Pop<First>();
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Pop(other_values...);
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}
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inline Kernel::Handle RequestParser::PopHandle() {
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const u32 handle_descriptor = Pop<u32>();
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DEBUG_ASSERT_MSG(IsHandleDescriptor(handle_descriptor),
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"Tried to pop handle(s) but the descriptor is not a handle descriptor");
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DEBUG_ASSERT_MSG(HandleNumberFromDesc(handle_descriptor) == 1,
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"Descriptor indicates that there isn't exactly one handle");
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return Pop<Kernel::Handle>();
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}
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template <typename... H>
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void RequestParser::PopHandles(H&... handles) {
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const u32 handle_descriptor = Pop<u32>();
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const int handles_number = sizeof...(H);
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DEBUG_ASSERT_MSG(IsHandleDescriptor(handle_descriptor),
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"Tried to pop handle(s) but the descriptor is not a handle descriptor");
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DEBUG_ASSERT_MSG(handles_number == HandleNumberFromDesc(handle_descriptor),
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"Number of handles doesn't match the descriptor");
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Pop(static_cast<Kernel::Handle&>(handles)...);
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}
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inline VAddr RequestParser::PopStaticBuffer(size_t* data_size, bool useStaticBuffersToGetVaddr) {
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const u32 sbuffer_descriptor = Pop<u32>();
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StaticBufferDescInfo bufferInfo{sbuffer_descriptor};
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if (data_size != nullptr)
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*data_size = bufferInfo.size;
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if (!useStaticBuffersToGetVaddr)
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return Pop<VAddr>();
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else {
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ASSERT_MSG(0, "remove the assert if multiprocess/IPC translation are implemented.");
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// The buffer has already been copied to the static buffer by the kernel during
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// translation
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Pop<VAddr>(); // Pop the calling process buffer address
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// and get the vaddr from the static buffers
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return cmdbuf[(0x100 >> 2) + bufferInfo.buffer_id * 2 + 1];
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}
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}
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inline VAddr RequestParser::PopMappedBuffer(size_t* data_size,
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MappedBufferPermissions* buffer_perms) {
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const u32 sbuffer_descriptor = Pop<u32>();
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MappedBufferDescInfo bufferInfo{sbuffer_descriptor};
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if (data_size != nullptr)
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*data_size = bufferInfo.size;
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if (buffer_perms != nullptr)
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*buffer_perms = bufferInfo.perms;
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return Pop<VAddr>();
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}
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template <typename T>
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void RequestParser::PopRaw(T& value) {
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static_assert(std::is_trivially_copyable<T>(), "Raw types should be trivially copyable");
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std::memcpy(&value, cmdbuf + index, sizeof(T));
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index += (sizeof(T) + 3) / 4; // round up to word length
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}
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} // namespace IPC
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@ -54,15 +54,17 @@ static void Initialize(Service::Interface* self) {
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* 3 : File handle
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*/
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static void OpenFile(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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// The helper should be passed by argument to the function
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IPC::RequestParser rp(Kernel::GetCommandBuffer(), {0x080201C2});
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rp.Pop<u32>(); // Always 0 ?
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ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
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auto filename_type = static_cast<FileSys::LowPathType>(cmd_buff[4]);
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u32 filename_size = cmd_buff[5];
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ArchiveHandle archive_handle = rp.Pop<u64>();
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auto filename_type = static_cast<FileSys::LowPathType>(rp.Pop<u32>());
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u32 filename_size = rp.Pop<u32>();
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FileSys::Mode mode;
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mode.hex = cmd_buff[6];
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u32 attributes = cmd_buff[7]; // TODO(Link Mauve): do something with those attributes.
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u32 filename_ptr = cmd_buff[9];
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mode.hex = rp.Pop<u32>();
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u32 attributes = rp.Pop<u32>(); // TODO(Link Mauve): do something with those attributes.
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VAddr filename_ptr = rp.PopStaticBuffer();
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FileSys::Path file_path(filename_type, filename_size, filename_ptr);
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LOG_DEBUG(Service_FS, "path=%s, mode=%u attrs=%u", file_path.DebugStr().c_str(), mode.hex,
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@ -70,16 +72,17 @@ static void OpenFile(Service::Interface* self) {
|
|||
|
||||
ResultVal<std::shared_ptr<File>> file_res =
|
||||
OpenFileFromArchive(archive_handle, file_path, mode);
|
||||
cmd_buff[1] = file_res.Code().raw;
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 2);
|
||||
rb.Push(file_res.Code());
|
||||
if (file_res.Succeeded()) {
|
||||
std::shared_ptr<File> file = *file_res;
|
||||
auto sessions = ServerSession::CreateSessionPair(file->GetName(), file);
|
||||
file->ClientConnected(std::get<Kernel::SharedPtr<Kernel::ServerSession>>(sessions));
|
||||
cmd_buff[3] = Kernel::g_handle_table
|
||||
.Create(std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions))
|
||||
.MoveFrom();
|
||||
rb.PushMoveHandles(Kernel::g_handle_table
|
||||
.Create(std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions))
|
||||
.MoveFrom());
|
||||
} else {
|
||||
cmd_buff[3] = 0;
|
||||
rb.PushMoveHandles(0);
|
||||
LOG_ERROR(Service_FS, "failed to get a handle for file %s", file_path.DebugStr().c_str());
|
||||
}
|
||||
}
|
||||
|
|
|
@ -10,6 +10,7 @@
|
|||
#include <boost/container/flat_map.hpp>
|
||||
#include "common/common_types.h"
|
||||
#include "core/hle/ipc.h"
|
||||
#include "core/hle/ipc_helpers.h"
|
||||
#include "core/hle/kernel/client_port.h"
|
||||
#include "core/hle/kernel/thread.h"
|
||||
#include "core/hle/result.h"
|
||||
|
|
|
@ -281,37 +281,39 @@ static void GetTransferEndEvent(Interface* self) {
|
|||
}
|
||||
|
||||
static void SetSendingY(Interface* self) {
|
||||
u32* cmd_buff = Kernel::GetCommandBuffer();
|
||||
// The helper should be passed by argument to the function
|
||||
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x00100102);
|
||||
conversion.src_Y.address = rp.Pop<u32>();
|
||||
conversion.src_Y.image_size = rp.Pop<u32>();
|
||||
conversion.src_Y.transfer_unit = rp.Pop<u32>();
|
||||
conversion.src_Y.gap = rp.Pop<u32>();
|
||||
Kernel::Handle src_process_handle = rp.PopHandle();
|
||||
|
||||
conversion.src_Y.address = cmd_buff[1];
|
||||
conversion.src_Y.image_size = cmd_buff[2];
|
||||
conversion.src_Y.transfer_unit = cmd_buff[3];
|
||||
conversion.src_Y.gap = cmd_buff[4];
|
||||
|
||||
cmd_buff[0] = IPC::MakeHeader(0x10, 1, 0);
|
||||
cmd_buff[1] = RESULT_SUCCESS.raw;
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
|
||||
rb.Push(RESULT_SUCCESS);
|
||||
|
||||
LOG_DEBUG(Service_Y2R, "called image_size=0x%08X, transfer_unit=%hu, transfer_stride=%hu, "
|
||||
"src_process_handle=0x%08X",
|
||||
conversion.src_Y.image_size, conversion.src_Y.transfer_unit, conversion.src_Y.gap,
|
||||
cmd_buff[6]);
|
||||
src_process_handle);
|
||||
}
|
||||
|
||||
static void SetSendingU(Interface* self) {
|
||||
u32* cmd_buff = Kernel::GetCommandBuffer();
|
||||
// The helper should be passed by argument to the function
|
||||
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x00110102);
|
||||
conversion.src_U.address = rp.Pop<u32>();
|
||||
conversion.src_U.image_size = rp.Pop<u32>();
|
||||
conversion.src_U.transfer_unit = rp.Pop<u32>();
|
||||
conversion.src_U.gap = rp.Pop<u32>();
|
||||
Kernel::Handle src_process_handle = rp.PopHandle();
|
||||
|
||||
conversion.src_U.address = cmd_buff[1];
|
||||
conversion.src_U.image_size = cmd_buff[2];
|
||||
conversion.src_U.transfer_unit = cmd_buff[3];
|
||||
conversion.src_U.gap = cmd_buff[4];
|
||||
|
||||
cmd_buff[0] = IPC::MakeHeader(0x11, 1, 0);
|
||||
cmd_buff[1] = RESULT_SUCCESS.raw;
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
|
||||
rb.Push(RESULT_SUCCESS);
|
||||
|
||||
LOG_DEBUG(Service_Y2R, "called image_size=0x%08X, transfer_unit=%hu, transfer_stride=%hu, "
|
||||
"src_process_handle=0x%08X",
|
||||
conversion.src_U.image_size, conversion.src_U.transfer_unit, conversion.src_U.gap,
|
||||
cmd_buff[6]);
|
||||
src_process_handle);
|
||||
}
|
||||
|
||||
static void SetSendingV(Interface* self) {
|
||||
|
@ -561,11 +563,10 @@ static void GetAlpha(Interface* self) {
|
|||
}
|
||||
|
||||
static void SetDitheringWeightParams(Interface* self) {
|
||||
u32* cmd_buff = Kernel::GetCommandBuffer();
|
||||
std::memcpy(&dithering_weight_params, &cmd_buff[1], sizeof(DitheringWeightParams));
|
||||
|
||||
cmd_buff[0] = IPC::MakeHeader(0x24, 1, 0);
|
||||
cmd_buff[1] = RESULT_SUCCESS.raw;
|
||||
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x24, 8, 0); // 0x240200
|
||||
rp.PopRaw(dithering_weight_params);
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
|
||||
rb.Push(RESULT_SUCCESS);
|
||||
|
||||
LOG_DEBUG(Service_Y2R, "called");
|
||||
}
|
||||
|
|
Reference in New Issue