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DSP: Added stub for ReadPipeIfPossible.

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This commit is contained in:
bunnei 2014-12-10 00:31:00 -05:00
parent 3a75c8069e
commit 988998cca5
1 changed files with 45 additions and 1 deletions
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46
src/core/hle/service/dsp_dsp.cpp
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@ -12,6 +12,7 @@
namespace DSP_DSP {
static u32 read_pipe_count;
static Handle semaphore_event;
static Handle interrupt_event;
@ -108,6 +109,48 @@ void WriteReg0x10(Service::Interface* self) {
DEBUG_LOG(KERNEL, "(STUBBED) called");
}
/**
* DSP_DSP::ReadPipeIfPossible service function
* Inputs:
* 1 : Unknown
* 2 : Unknown
* 3 : Size in bytes of read (observed only lower half word used)
* 0x41 : Virtual address to read from DSP pipe to in memory
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : Number of bytes read from pipe
*/
void ReadPipeIfPossible(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
u32 size = cmd_buff[3] & 0xFFFF;// Lower 16 bits are size
VAddr addr = cmd_buff[0x41];
// Canned DSP responses that games expect. These were taken from HW by 3dmoo team.
// TODO: Remove this hack :)
static const std::array<u16, 16> canned_read_pipe = {
0x000F, 0xBFFF, 0x9E8E, 0x8680, 0xA78E, 0x9430, 0x8400, 0x8540,
0x948E, 0x8710, 0x8410, 0xA90E, 0xAA0E, 0xAACE, 0xAC4E, 0xAC58
};
u32 initial_size = read_pipe_count;
for (unsigned offset = 0; offset < size; offset += sizeof(u16)) {
if (read_pipe_count < canned_read_pipe.size()) {
Memory::Write16(addr + offset, canned_read_pipe[read_pipe_count]);
read_pipe_count++;
} else {
ERROR_LOG(KERNEL, "canned read pipe log exceeded!");
break;
}
}
cmd_buff[1] = 0; // No error
cmd_buff[2] = (read_pipe_count - initial_size) * sizeof(u16);
DEBUG_LOG(KERNEL, "(STUBBED) called size=0x%08X, buffer=0x%08X", size, addr);
}
const Interface::FunctionInfo FunctionTable[] = {
{0x00010040, nullptr, "RecvData"},
{0x00020040, nullptr, "RecvDataIsReady"},
@ -119,7 +162,7 @@ const Interface::FunctionInfo FunctionTable[] = {
{0x000B0000, nullptr, "CheckSemaphoreRequest"},
{0x000C0040, ConvertProcessAddressFromDspDram, "ConvertProcessAddressFromDspDram"},
{0x000D0082, nullptr, "WriteProcessPipe"},
{0x001000C0, nullptr, "ReadPipeIfPossible"},
{0x001000C0, ReadPipeIfPossible, "ReadPipeIfPossible"},
{0x001100C2, LoadComponent, "LoadComponent"},
{0x00120000, nullptr, "UnloadComponent"},
{0x00130082, nullptr, "FlushDataCache"},
@ -142,6 +185,7 @@ const Interface::FunctionInfo FunctionTable[] = {
Interface::Interface() {
semaphore_event = Kernel::CreateEvent(RESETTYPE_ONESHOT, "DSP_DSP::semaphore_event");
interrupt_event = 0;
read_pipe_count = 0;
Register(FunctionTable, ARRAY_SIZE(FunctionTable));
}