95 lines
1.9 KiB
C
95 lines
1.9 KiB
C
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/*
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common.h:
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Common types and global variables.
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(c) TuxSH, 2016-2017
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This is part of 3ds_pxi, which is licensed under the MIT license (see LICENSE for details).
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*/
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#pragma once
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#include <3ds.h>
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typedef enum SessionState
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{
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STATE_IDLE = 0,
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STATE_RECEIVED_FROM_ARM11 = 1,
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STATE_SENT_TO_ARM9 = 2,
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STATE_RECEIVED_FROM_ARM9 = 3
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} SessionState;
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typedef struct SessionData
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{
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SessionState state;
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u32 buffer[0x100/4];
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Handle handle;
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u32 usedStaticBuffers;
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RecursiveLock lock;
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} SessionData;
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#define NB_STATIC_BUFFERS 21
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typedef struct SessionManager
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{
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Handle sendAllBuffersToArm9Event, replySemaphore, PXISRV11CommandReceivedEvent, PXISRV11ReplySentEvent;
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u32 latest_PXI_MC5_val, pendingArm9Commands;
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u32 receivedServiceId;
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RecursiveLock senderLock;
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bool sendingDisabled;
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SessionData sessionData[10];
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u32 currentlyProvidedStaticBuffers, freeStaticBuffers;
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} SessionManager;
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//Page alignment is mandatory there
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extern u32 ALIGN(0x1000) staticBuffers[NB_STATIC_BUFFERS][0x1000/4];
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extern Handle PXISyncInterrupt, PXITransferMutex;
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extern Handle terminationRequestedEvent;
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extern bool shouldTerminate;
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extern SessionManager sessionManager;
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extern const u32 nbStaticBuffersByService[10];
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static inline Result assertSuccess(Result res)
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{
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if(R_FAILED(res)) svcBreak(USERBREAK_PANIC);
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return res;
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}
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static inline s32 getMSBPosition(u32 val)
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{
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return 31 - (s32) __builtin_clz(val);
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}
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static inline s32 getLSBPosition(u32 val)
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{
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return __builtin_ffs(val) - 1;
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}
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static inline u32 clearMSBs(u32 val, u32 nb)
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{
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for(u32 i = 0; i < nb; i++)
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{
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s32 pos = getMSBPosition(val);
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if(pos == -1) break;
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val &= ~(1 << pos);
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}
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return val;
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}
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static inline u32 countNbBitsSet(u32 val)
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{
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u32 nb = 0;
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while(val != 0)
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{
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val = clearMSBs(val, 1);
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nb++;
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}
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return nb;
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}
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