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Add helpers to create IPC command buffer headers and descriptors
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dc09a2ecb5
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81488d7a6a
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@ -8,6 +8,40 @@
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#include "core/hle/kernel/thread.h"
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#include "core/memory.h"
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namespace IPC {
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inline u32 MakeHeader(u16 command_id, unsigned int regular_params, unsigned int translate_params) {
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return ((u32)command_id << 16) | (((u32)regular_params & 0x3F) << 6) | (((u32)translate_params & 0x3F) << 0);
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}
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inline u32 MoveHandleDesc(unsigned int num_handles = 1) {
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return 0x0 | ((num_handles - 1) << 26);
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}
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inline u32 CopyHandleDesc(unsigned int num_handles = 1) {
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return 0x10 | ((num_handles - 1) << 26);
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}
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inline u32 CallingPidDesc() {
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return 0x20;
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}
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inline u32 StaticBufferDesc(u32 size, unsigned int buffer_id) {
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return 0x2 | (size << 14) | ((buffer_id & 0xF) << 10);
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}
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enum MappedBufferPermissions {
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R = 2,
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W = 4,
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RW = R | W,
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};
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inline u32 MappedBufferDesc(u32 size, MappedBufferPermissions perms) {
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return 0x8 | (size << 4) | (u32)perms;
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}
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}
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namespace Kernel {
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static const int kCommandHeaderOffset = 0x80; ///< Offset into command buffer of header
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@ -45,7 +45,7 @@ void Initialize(Service::Interface* self) {
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u32 app_id = cmd_buff[1];
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u32 flags = cmd_buff[2];
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cmd_buff[2] = 0x04000000; // According to 3dbrew, this value should be 0x04000000
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cmd_buff[2] = IPC::MoveHandleDesc(2);
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cmd_buff[3] = Kernel::g_handle_table.Create(notification_event).MoveFrom();
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cmd_buff[4] = Kernel::g_handle_table.Create(start_event).MoveFrom();
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@ -70,11 +70,13 @@ void GetSharedFont(Service::Interface* self) {
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// an easy way to do this, but the copy should be sufficient for now.
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memcpy(Memory::GetPointer(SHARED_FONT_VADDR), shared_font.data(), shared_font.size());
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cmd_buff[0] = 0x00440082;
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cmd_buff[0] = IPC::MakeHeader(0x44, 2, 2);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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cmd_buff[2] = SHARED_FONT_VADDR;
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cmd_buff[3] = IPC::MoveHandleDesc();
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cmd_buff[4] = Kernel::g_handle_table.Create(shared_font_mem).MoveFrom();
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} else {
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cmd_buff[0] = IPC::MakeHeader(0x44, 1, 0);
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cmd_buff[1] = -1; // Generic error (not really possible to verify this on hardware)
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LOG_ERROR(Kernel_SVC, "called, but %s has not been loaded!", SHARED_FONT);
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}
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@ -121,7 +121,7 @@ static void SetBlockAlignment(Service::Interface* self) {
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static void SetTransferEndInterrupt(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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cmd_buff[0] = 0x000D0040;
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cmd_buff[0] = IPC::MakeHeader(0xD, 1, 0);
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cmd_buff[1] = RESULT_SUCCESS.raw;
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LOG_DEBUG(Service_Y2R, "(STUBBED) called");
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}
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@ -279,7 +279,7 @@ static void StartConversion(Service::Interface* self) {
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static void StopConversion(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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cmd_buff[0] = 0x00270040;
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cmd_buff[0] = IPC::MakeHeader(0x27, 1, 0);
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cmd_buff[1] = RESULT_SUCCESS.raw;
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LOG_DEBUG(Service_Y2R, "called");
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}
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@ -328,7 +328,7 @@ static void SetConversionParams(Service::Interface* self) {
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conversion.alpha = params->alpha;
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cleanup:
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cmd_buff[0] = 0x00290040; // TODO verify
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cmd_buff[0] = IPC::MakeHeader(0x29, 1, 0);
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cmd_buff[1] = result.raw;
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}
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@ -360,7 +360,7 @@ static void DriverInitialize(Service::Interface* self) {
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completion_event->Clear();
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cmd_buff[0] = 0x002B0040;
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cmd_buff[0] = IPC::MakeHeader(0x2B, 1, 0);
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cmd_buff[1] = RESULT_SUCCESS.raw;
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LOG_DEBUG(Service_Y2R, "called");
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}
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@ -368,7 +368,7 @@ static void DriverInitialize(Service::Interface* self) {
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static void DriverFinalize(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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cmd_buff[0] = 0x002C0040;
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cmd_buff[0] = IPC::MakeHeader(0x2C, 1, 0);
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cmd_buff[1] = RESULT_SUCCESS.raw;
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LOG_DEBUG(Service_Y2R, "called");
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}
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