Started implementing code for new3ds mvd. Added osConvertOldLINEARMemToNew().

libctru/include/3ds.h

@@ -25,6 +25,7 @@ extern "C" {
 #include <3ds/services/ptm.h>
 #include <3ds/services/soc.h>
 #include <3ds/services/mic.h>
+#include <3ds/services/mvd.h>
 
 #include <3ds/gpu/gx.h>
 #include <3ds/gpu/gpu.h>

libctru/include/3ds/os.h

@@ -4,6 +4,7 @@
 	(((major)<<24)|((minor)<<16)|((revision)<<8))
 
 u32 osConvertVirtToPhys(u32 vaddr);
+u32 osConvertOldLINEARMemToNew(u32 addr);//Converts 0x14* vmem to 0x30*. Returns the input addr when it's already within the new vmem. Returns 0 when outside of either LINEAR mem areas.
 const char* osStrError(u32 error);
 u32 osGetFirmVersion();
 u32 osGetKernelVersion();

libctru/include/3ds/services/mvd.h

@@ -0,0 +1,36 @@
+#pragma once
+
+//New3DS-only, see also: http://3dbrew.org/wiki/MVD_Services
+
+typedef enum {
+	MVDTYPE_COLORFORMATCONV = 0x00010001,
+	MVDTYPE_H264 = 0x00020001
+} mvdstdType;
+
+typedef struct {
+	mvdstdType type;
+	u32 unk_x04;
+	u32 unk_x08;
+	u32 width0, height0;
+	u32 physaddr_colorconv_indata;
+	u32 unk_x18[0x28>>2];
+	u32 flag_x40;//0x0 for colorconv, 0x1 for H.264
+	u32 unk_x44;
+	u32 unk_x48;
+	u32 height1, width1;//Only set for H.264.
+	u32 unk_x54;
+	u32 unk_x58;
+	u32 width2, height2;
+	u32 physaddr_outdata0;
+	u32 physaddr_outdata1_colorconv;
+	u32 unk_x6c[0xb0>>2];
+} mvdstdConfig;
+
+void mvdstdGenerateDefaultConfig(mvdstdConfig *config, u32 width, u32 height, u32 *vaddr_colorconv_indata, u32 *vaddr_outdata0, u32 *vaddr_outdata1_colorconv);
+
+Result mvdstdInit(mvdstdType type, u32 size);//The input size isn't used when type==MVDTYPE_COLORFORMATCONV. H.264 isn't supported currently.
+Result mvdstdShutdown();
+
+Result mvdstdSetConfig(mvdstdConfig *config);
+Result mvdstdProcessFrame(mvdstdConfig *config, u32 *h264_vaddr_inframe, u32 h264_inframesize, u32 h264_frameid);
+

libctru/source/os.c

@@ -29,6 +29,13 @@ u32 osConvertVirtToPhys(u32 vaddr)
 	return 0;
 }
 
+u32 osConvertOldLINEARMemToNew(u32 vaddr)
+{
+	if(vaddr >= 0x30000000 && vaddr < 0x40000000)return vaddr;
+	if(vaddr >= 0x14000000 && vaddr < 0x1c000000)return vaddr+=0x1c000000;
+	return 0;
+}
+
 // Returns number of milliseconds since 1st Jan 1900 00:00.
 u64 osGetTime() {
 	volatile datetime_t* dt;

libctru/source/services/mvd.c

@@ -0,0 +1,197 @@
+/*
+  mvd.c - code for using this: http://3dbrew.org/wiki/MVD_Services
+*/
+
+#include <stdlib.h>
+#include <string.h>
+#include <3ds.h>
+
+Handle mvdstdHandle;
+static u32 mvdstdInitialized = 0;
+static mvdstdType mvdstd_type;
+static u32 *mvdstd_workbuf = NULL;
+static size_t mvdstd_workbufsize = 0;
+
+static Result mvdstdipc_Initialize(u32 *buf, u32 bufsize, Handle kprocess)
+{
+	u32* cmdbuf = getThreadCommandBuffer();
+	cmdbuf[0] = 0x00010082; //request header code
+	cmdbuf[1] = (u32)buf;
+	cmdbuf[2] = bufsize;
+	cmdbuf[3] = 0;
+	cmdbuf[4] = kprocess;
+
+	Result ret=0;
+	if((ret=svcSendSyncRequest(mvdstdHandle)))return ret;
+
+	return cmdbuf[1];
+}
+
+static Result mvdstdipc_Shutdown()
+{
+	u32* cmdbuf = getThreadCommandBuffer();
+	cmdbuf[0] = 0x00020000; //request header code
+
+	Result ret=0;
+	if((ret = svcSendSyncRequest(mvdstdHandle)))return ret;
+
+	return cmdbuf[1];
+}
+
+static Result mvdstdipc_cmd18()
+{
+	u32* cmdbuf = getThreadCommandBuffer();
+	cmdbuf[0] = 0x00180000; //request header code
+
+	Result ret=0;
+	if((ret=svcSendSyncRequest(mvdstdHandle)))return ret;
+
+	return cmdbuf[1];
+}
+
+static Result mvdstdipc_cmd19()
+{
+	u32* cmdbuf = getThreadCommandBuffer();
+	cmdbuf[0] = 0x00190000; //request header code
+
+	Result ret=0;
+	if((ret=svcSendSyncRequest(mvdstdHandle)))return ret;
+
+	return cmdbuf[1];
+}
+
+static Result mvdstdipc_cmd1a()
+{
+	u32* cmdbuf = getThreadCommandBuffer();
+	cmdbuf[0] = 0x001A0000; //request header code
+
+	Result ret=0;
+	if((ret=svcSendSyncRequest(mvdstdHandle)))return ret;
+
+	return cmdbuf[1];
+}
+
+Result mvdstdSetConfig(mvdstdConfig *config)
+{
+	u32* cmdbuf = getThreadCommandBuffer();
+	cmdbuf[0] = 0x001E0044; //request header code
+	cmdbuf[1] = sizeof(mvdstdConfig);
+	cmdbuf[2] = 0;
+	cmdbuf[3] = 0xffff8001;
+	cmdbuf[4] = (sizeof(mvdstdConfig)<<4) | 10;
+	cmdbuf[5] = (u32)config;
+
+	Result ret=0;
+	if((ret=svcSendSyncRequest(mvdstdHandle)))return ret;
+
+	return cmdbuf[1];
+}
+
+void mvdstdGenerateDefaultConfig(mvdstdConfig *config, u32 width, u32 height, u32 *vaddr_colorconv_indata, u32 *vaddr_outdata0, u32 *vaddr_outdata1_colorconv)
+{
+	memset(config, 0, sizeof(mvdstdConfig));
+
+	config->type = mvdstd_type;
+
+	config->width0 = width;
+	config->height0 = height;
+
+	if(mvdstd_type==MVDTYPE_COLORFORMATCONV)config->physaddr_colorconv_indata = osConvertVirtToPhys((u32)vaddr_colorconv_indata);
+
+	if(mvdstd_type==MVDTYPE_H264)
+	{
+		config->flag_x40 = 1;
+		config->height1 = height;
+		config->width1 = width;
+	}
+
+	config->unk_x58 = 0x40002;
+
+	config->width2 = width;
+	config->height2 = height;
+
+	config->physaddr_outdata0 = osConvertVirtToPhys((u32)vaddr_outdata0);
+	if(mvdstd_type==MVDTYPE_COLORFORMATCONV)config->physaddr_outdata1_colorconv = osConvertVirtToPhys((u32)vaddr_outdata1_colorconv);
+
+	config->unk_x6c[0] = 0x1;
+	config->unk_x6c[(0x84-0x6c)>>2] = 0x12a;
+	config->unk_x6c[(0x88-0x6c)>>2] = 0x199;
+	config->unk_x6c[(0x8c-0x6c)>>2] = 0xd0;
+	config->unk_x6c[(0x90-0x6c)>>2] = 0x64;
+	config->unk_x6c[(0x94-0x6c)>>2] = 0x204;
+	config->unk_x6c[(0xa8-0x6c)>>2] = 0x1;
+	config->unk_x6c[(0x104-0x6c)>>2] = 0x1;
+	config->unk_x6c[(0x110-0x6c)>>2] = 0x200;
+	config->unk_x6c[(0x114-0x6c)>>2] = 0x100;
+}
+
+Result mvdstdInit(mvdstdType type, u32 size)
+{
+	Result ret=0;
+
+	if(mvdstdInitialized)return 0;
+
+	mvdstd_workbufsize = size;
+	mvdstd_type = type;
+
+	if(type==MVDTYPE_COLORFORMATCONV)mvdstd_workbufsize = 1;
+	if(type!=MVDTYPE_COLORFORMATCONV)return -2;//H264 isn't supported atm.
+
+	if((ret=srvGetServiceHandle(&mvdstdHandle, "mvd:STD")))return ret;
+
+	mvdstd_workbuf = linearAlloc(mvdstd_workbufsize);
+	if(mvdstd_workbuf==NULL)return -1;
+
+	ret = mvdstdipc_Initialize((u32*)osConvertOldLINEARMemToNew((u32)mvdstd_workbuf), mvdstd_workbufsize, 0xffff8001);
+	if(ret<0)
+	{
+		svcCloseHandle(mvdstdHandle);
+		linearFree(mvdstd_workbuf);
+		return ret;
+	}
+
+	ret = mvdstdipc_cmd18();
+	if(ret<0)
+	{
+		mvdstdipc_Shutdown();
+		svcCloseHandle(mvdstdHandle);
+		linearFree(mvdstd_workbuf);
+		return ret;
+	}
+
+	mvdstdInitialized = 1;
+
+	return 0;
+}
+
+Result mvdstdShutdown()
+{
+	if(!mvdstdInitialized)return 0;
+
+	if(mvdstd_type==MVDTYPE_COLORFORMATCONV)
+	{
+		mvdstdipc_cmd19();
+	}
+
+	mvdstdipc_Shutdown();
+
+	svcCloseHandle(mvdstdHandle);
+
+	linearFree(mvdstd_workbuf);
+
+	return 0;
+}
+
+Result mvdstdProcessFrame(mvdstdConfig *config, u32 *h264_vaddr_inframe, u32 h264_inframesize, u32 h264_frameid)
+{
+	Result ret;
+
+	if(config==NULL)return -1;
+	if(mvdstd_type!=MVDTYPE_COLORFORMATCONV)return -2;
+
+	ret = mvdstdSetConfig(config);
+	if(ret<0)return ret;
+
+	return mvdstdipc_cmd1a();
+}
+