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Merge pull request #165 from Lectem/dsp

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Dsp fixes
This commit is contained in:
fincs 2015-09-09 15:56:21 +02:00
commit 730899bee6
3 changed files with 25 additions and 32 deletions
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5
libctru/include/3ds/ipc.h
View File

@ -9,8 +9,9 @@
typedef enum
{
IPC_BUFFER_R = 0x2,
IPC_BUFFER_W = 0x4,
IPC_BUFFER_R = BIT(1),
IPC_BUFFER_W = BIT(2),
IPC_BUFFER_RW = IPC_BUFFER_R | IPC_BUFFER_W
} IPC_BufferRights;

7
libctru/include/3ds/services/dsp.h
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@ -90,15 +90,16 @@ Result DSP_RegisterInterruptEvents(Handle handle,u32 interrupt,u32 channel);
/**
* @param channel ?????? TODO usually 2
* @param channel unknown. Usually 2
* @param peer unknown. Usually 0
* @param buffer The buffer that will store the values read from the pipe
* @param length Length of the buffer
* @param length_read Number of bytes read by the command
*/
Result DSP_ReadPipeIfPossible(u32 channel, u8 const *buffer, u16 length, u16* length_read);
Result DSP_ReadPipeIfPossible(u32 channel,u32 peer, u8 const *buffer, u16 length, u16* length_read);
/**
* @param channel ?????? TODO usually 2
* @param channel unknown. Usually 2
* @param buffer The message to send to the DSP process
* @param length Length of the message
*/

33
libctru/source/services/dsp.c
View File

@ -4,19 +4,17 @@
#include <3ds/ipc.h>
#include <3ds/services/dsp.h>
Handle dspHandle = 0;
static Handle dspHandle = 0;
Result dspInit(void)
{
Result ret = 0;
if (dspHandle == 0)
{
ret = srvGetServiceHandle(&dspHandle, "dsp::DSP");
if (ret < 0) return ret;
}
if (ret < 0) return ret;
DSP_UnloadComponent();
return 0;
}
@ -40,7 +38,7 @@ Result DSP_GetHeadphoneStatus(bool* is_inserted)
{
Result ret = 0;
u32* cmdbuf = getThreadCommandBuffer();
cmdbuf[0] = IPC_MakeHeader(0x001F,0,0);
cmdbuf[0] = IPC_MakeHeader(0x1F,0,0);
if ((ret = svcSendSyncRequest(dspHandle)) != 0) return ret;
*is_inserted = cmdbuf[2] & 0xFF;
return cmdbuf[1];
@ -148,44 +146,37 @@ Result DSP_RegisterInterruptEvents(Handle handle, u32 interrupt, u32 channel)
}
Result DSP_ReadPipeIfPossibleEx(u32 channel,u32 unk1, u8 const *buffer, u16 length, u16* length_read)
Result DSP_ReadPipeIfPossible(u32 channel,u32 peer, u8 const *buffer, u16 length, u16* length_read)
{
Result ret = 0;
u32* cmdbuf = getThreadCommandBuffer();
cmdbuf[0] = IPC_MakeHeader(0x10,3,0);
cmdbuf[1] = channel;
cmdbuf[2] = unk1;
cmdbuf[2] = peer;
cmdbuf[3] = length;
u32 * staticbufs = cmdbuf + 0x100;
u32 * staticbufs = getThreadStaticBuffers();
u32 saved1 = staticbufs[0x0];
u32 saved2 = staticbufs[0x4];
u32 saved1 = staticbufs[0];
u32 saved2 = staticbufs[1];
staticbufs[0] = (length<<14) | 2;
staticbufs[4] = (u32)buffer;
staticbufs[0] = IPC_Desc_StaticBuffer(length,0);
staticbufs[1] = (u32)buffer;
if ((ret = svcSendSyncRequest(dspHandle)) != 0) return ret;
staticbufs[0] = saved1;
staticbufs[4] = saved2;
staticbufs[1] = saved2;
*length_read = cmdbuf[2] & 0xFFFF;
return cmdbuf[1];
}
//TODO change DSP_ReadPipeIfPossibleEx into DSP_ReadPipeIfPossible once unk1 is figured out
//However it seems that it is always used with value 0
Result DSP_ReadPipeIfPossible(u32 channel, u8 const *buffer, u16 length, u16* length_read)
{
return DSP_ReadPipeIfPossibleEx(channel,0,buffer,length, length_read);
}
Result DSP_WriteProcessPipe(u32 channel, u8 const *buffer, u32 length)
{
Result ret = 0;
u32* cmdbuf = getThreadCommandBuffer();
cmdbuf[0] = IPC_MakeHeader(0xd,2,2);
cmdbuf[0] = IPC_MakeHeader(0xD,2,2);
cmdbuf[1] = channel;
cmdbuf[2] = length;
cmdbuf[3] = IPC_Desc_StaticBuffer(length,1);
@ -198,7 +189,7 @@ Result DSP_ConvertProcessAddressFromDspDram(u32 dsp_address, u32 *arm_address)
{
Result ret = 0;
u32* cmdbuf = getThreadCommandBuffer();
cmdbuf[0] = IPC_MakeHeader(0xc,1,0);
cmdbuf[0] = IPC_MakeHeader(0xC,1,0);
cmdbuf[1] = dsp_address;
if ((ret = svcSendSyncRequest(dspHandle)) != 0) return ret;
*arm_address = cmdbuf[2];