#define PKT_IN_USE 0x1
-#ifdef INKERNEL
-
#define ZERO_PTR (ushort) 0x8000
#define CaD PortP->Caddr
** to by the TxAdd pointer has PKT_IN_USE clear in its address.
*/
-#ifndef linux
-#if defined( MIPS ) && !defined( MIPSEISA )
-/* May the shoes of the Devil dance on your grave for creating this */
-#define can_add_transmit(PacketP,PortP) \
- (!((uint)(PacketP = (struct PKT *)RIO_PTR(CaD,RINDW(PortP->TxAdd))) \
- & (PKT_IN_USE<<2)))
-
-#elif defined(MIPSEISA) || defined(nx6000) || \
- defined(drs6000) || defined(UWsparc)
-
-#define can_add_transmit(PacketP,PortP) \
- (!((uint)(PacketP = (struct PKT *)RIO_PTR(CaD,RINDW(PortP->TxAdd))) \
- & PKT_IN_USE))
-
-#else
-#define can_add_transmit(PacketP,PortP) \
- (!((uint)(PacketP = (struct PKT *)RIO_PTR(CaD,*PortP->TxAdd)) \
- & PKT_IN_USE))
-#endif
-
-/*
-** To add a packet to the queue, you set the PKT_IN_USE bit in the address,
-** and then move the TxAdd pointer along one position to point to the next
-** packet pointer. You must wrap the pointer from the end back to the start.
-*/
-#if defined(MIPS) || defined(nx6000) || defined(drs6000) || defined(UWsparc)
-# define add_transmit(PortP) \
- WINDW(PortP->TxAdd,RINDW(PortP->TxAdd) | PKT_IN_USE);\
- if (PortP->TxAdd == PortP->TxEnd)\
- PortP->TxAdd = PortP->TxStart;\
- else\
- PortP->TxAdd++;\
- WWORD(PortP->PhbP->tx_add , RIO_OFF(CaD,PortP->TxAdd));
-#elif defined(AIX)
-# define add_transmit(PortP) \
- {\
- register ushort *TxAddP = (ushort *)RIO_PTR(Cad,PortP->TxAddO);\
- WINDW( TxAddP, RINDW( TxAddP ) | PKT_IN_USE );\
- if (PortP->TxAddO == PortP->TxEndO )\
- PortP->TxAddO = PortP->TxStartO;\
- else\
- PortP->TxAddO += sizeof(ushort);\
- WWORD(((PHB *)RIO_PTR(Cad,PortP->PhbO))->tx_add , PortP->TxAddO );\
- }
-#else
-# define add_transmit(PortP) \
- *PortP->TxAdd |= PKT_IN_USE;\
- if (PortP->TxAdd == PortP->TxEnd)\
- PortP->TxAdd = PortP->TxStart;\
- else\
- PortP->TxAdd++;\
- PortP->PhbP->tx_add = RIO_OFF(CaD,PortP->TxAdd);
-#endif
-
-/*
-** can_remove_receive( PacketP, PortP ) returns non-zero if PKT_IN_USE is set
-** for the next packet on the queue. It will also set PacketP to point to the
-** relevant packet, [having cleared the PKT_IN_USE bit]. If PKT_IN_USE is clear,
-** then can_remove_receive() returns 0.
-*/
-#if defined(MIPS) || defined(nx6000) || defined(drs6000) || defined(UWsparc)
-# define can_remove_receive(PacketP,PortP) \
- ((RINDW(PortP->RxRemove) & PKT_IN_USE) ? \
- (PacketP=(struct PKT *)RIO_PTR(CaD,(RINDW(PortP->RxRemove) & ~PKT_IN_USE))):0)
-#elif defined(AIX)
-# define can_remove_receive(PacketP,PortP) \
- ((RINDW((ushort *)RIO_PTR(Cad,PortP->RxRemoveO)) & PKT_IN_USE) ? \
- (PacketP=(struct PKT *)RIO_PTR(Cad,RINDW((ushort *)RIO_PTR(Cad,PortP->RxRemoveO)) & ~PKT_IN_USE)):0)
-#else
-# define can_remove_receive(PacketP,PortP) \
- ((*PortP->RxRemove & PKT_IN_USE) ? \
- (PacketP=(struct PKT *)RIO_PTR(CaD,(*PortP->RxRemove & ~PKT_IN_USE))):0)
-#endif
-
-
-/*
-** Will God see it within his heart to forgive us for this thing that
-** we have created? To remove a packet from the receive queue you clear
-** its PKT_IN_USE bit, and then bump the pointers. Once the pointers
-** get to the end, they must be wrapped back to the start.
-*/
-#if defined(MIPS) || defined(nx6000) || defined(drs6000) || defined(UWsparc)
-# define remove_receive(PortP) \
- WINDW(PortP->RxRemove, (RINDW(PortP->RxRemove) & ~PKT_IN_USE));\
- if (PortP->RxRemove == PortP->RxEnd)\
- PortP->RxRemove = PortP->RxStart;\
- else\
- PortP->RxRemove++;\
- WWORD(PortP->PhbP->rx_remove , RIO_OFF(CaD,PortP->RxRemove));
-#elif defined(AIX)
-# define remove_receive(PortP) \
- {\
- register ushort *RxRemoveP = (ushort *)RIO_PTR(Cad,PortP->RxRemoveO);\
- WINDW( RxRemoveP, RINDW( RxRemoveP ) & ~PKT_IN_USE );\
- if (PortP->RxRemoveO == PortP->RxEndO)\
- PortP->RxRemoveO = PortP->RxStartO;\
- else\
- PortP->RxRemoveO += sizeof(ushort);\
- WWORD(((PHB *)RIO_PTR(Cad,PortP->PhbO))->rx_remove, PortP->RxRemoveO );\
- }
-#else
-# define remove_receive(PortP) \
- *PortP->RxRemove &= ~PKT_IN_USE;\
- if (PortP->RxRemove == PortP->RxEnd)\
- PortP->RxRemove = PortP->RxStart;\
- else\
- PortP->RxRemove++;\
- PortP->PhbP->rx_remove = RIO_OFF(CaD,PortP->RxRemove);
-#endif
-#endif
-
-
-#else /* !IN_KERNEL */
-
-#define ZERO_PTR NULL
-
-
-#ifdef HOST
-/* #define can_remove_transmit(pkt,phb) ((((char*)pkt = (*(char**)(phb->tx_remove))-1) || 1)) && (*phb->u3.s2.tx_remove_ptr & PKT_IN_USE)) */
-#define remove_transmit(phb) *phb->u3.s2.tx_remove_ptr &= ~(ushort)PKT_IN_USE;\
- if (phb->tx_remove == phb->tx_end)\
- phb->tx_remove = phb->tx_start;\
- else\
- phb->tx_remove++;
-#define can_add_receive(phb) !(*phb->u4.s2.rx_add_ptr & PKT_IN_USE)
-#define add_receive(pkt,phb) *phb->rx_add = pkt;\
- *phb->u4.s2.rx_add_ptr |= PKT_IN_USE;\
- if (phb->rx_add == phb->rx_end)\
- phb->rx_add = phb->rx_start;\
- else\
- phb->rx_add++;
-#endif
-#endif
-
-#ifdef RTA
-#define splx(oldspl) if ((oldspl) == 0) spl0()
-#endif
-
#endif /* ifndef _list.h */
/*********** end of file ***********/
git.openpandora.org / pandora-kernel.git / blobdiff