diff options
Diffstat (limited to 'drivers/staging/rt2860/common/2860_rtmp_init.c')
| -rw-r--r-- | drivers/staging/rt2860/common/2860_rtmp_init.c | 922 |
1 files changed, 922 insertions, 0 deletions
diff --git a/drivers/staging/rt2860/common/2860_rtmp_init.c b/drivers/staging/rt2860/common/2860_rtmp_init.c new file mode 100644 index 000000000000..546f304ec330 --- /dev/null +++ b/drivers/staging/rt2860/common/2860_rtmp_init.c @@ -0,0 +1,922 @@ +/* + ************************************************************************* + * Ralink Tech Inc. + * 5F., No.36, Taiyuan St., Jhubei City, + * Hsinchu County 302, + * Taiwan, R.O.C. + * + * (c) Copyright 2002-2007, Ralink Technology, Inc. + * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + ************************************************************************* + + Module Name: + 2860_rtmp_init.c + + Abstract: + Miniport generic portion header file + + Revision History: + Who When What + -------- ---------- ---------------------------------------------- + Paul Lin 2002-08-01 created + John Chang 2004-08-20 RT2561/2661 use scatter-gather scheme + Jan Lee 2006-09-15 RT2860. Change for 802.11n , EEPROM, Led, BA, HT. +*/ +#include "../rt_config.h" + + + + +/* + ======================================================================== + + Routine Description: + Allocate DMA memory blocks for send, receive + + Arguments: + Adapter Pointer to our adapter + + Return Value: + NDIS_STATUS_SUCCESS + NDIS_STATUS_FAILURE + NDIS_STATUS_RESOURCES + + IRQL = PASSIVE_LEVEL + + Note: + + ======================================================================== +*/ +NDIS_STATUS RTMPAllocTxRxRingMemory( + IN PRTMP_ADAPTER pAd) +{ + NDIS_STATUS Status = NDIS_STATUS_SUCCESS; + ULONG RingBasePaHigh; + ULONG RingBasePaLow; + PVOID RingBaseVa; + INT index, num; + PTXD_STRUC pTxD; + PRXD_STRUC pRxD; + ULONG ErrorValue = 0; + PRTMP_TX_RING pTxRing; + PRTMP_DMABUF pDmaBuf; + PNDIS_PACKET pPacket; + + DBGPRINT(RT_DEBUG_TRACE, ("--> RTMPAllocTxRxRingMemory\n")); + do + { + // + // Allocate all ring descriptors, include TxD, RxD, MgmtD. + // Although each size is different, to prevent cacheline and alignment + // issue, I intentional set them all to 64 bytes. + // + for (num=0; num<NUM_OF_TX_RING; num++) + { + ULONG BufBasePaHigh; + ULONG BufBasePaLow; + PVOID BufBaseVa; + + // + // Allocate Tx ring descriptor's memory (5 TX rings = 4 ACs + 1 HCCA) + // + pAd->TxDescRing[num].AllocSize = TX_RING_SIZE * TXD_SIZE; + RTMP_AllocateTxDescMemory( + pAd, + num, + pAd->TxDescRing[num].AllocSize, + FALSE, + &pAd->TxDescRing[num].AllocVa, + &pAd->TxDescRing[num].AllocPa); + + if (pAd->TxDescRing[num].AllocVa == NULL) + { + ErrorValue = ERRLOG_OUT_OF_SHARED_MEMORY; + DBGPRINT_ERR(("Failed to allocate a big buffer\n")); + Status = NDIS_STATUS_RESOURCES; + break; + } + + // Zero init this memory block + NdisZeroMemory(pAd->TxDescRing[num].AllocVa, pAd->TxDescRing[num].AllocSize); + + // Save PA & VA for further operation + RingBasePaHigh = RTMP_GetPhysicalAddressHigh(pAd->TxDescRing[num].AllocPa); + RingBasePaLow = RTMP_GetPhysicalAddressLow (pAd->TxDescRing[num].AllocPa); + RingBaseVa = pAd->TxDescRing[num].AllocVa; + + // + // Allocate all 1st TXBuf's memory for this TxRing + // + pAd->TxBufSpace[num].AllocSize = TX_RING_SIZE * TX_DMA_1ST_BUFFER_SIZE; + RTMP_AllocateFirstTxBuffer( + pAd, + num, + pAd->TxBufSpace[num].AllocSize, + FALSE, + &pAd->TxBufSpace[num].AllocVa, + &pAd->TxBufSpace[num].AllocPa); + + if (pAd->TxBufSpace[num].AllocVa == NULL) + { + ErrorValue = ERRLOG_OUT_OF_SHARED_MEMORY; + DBGPRINT_ERR(("Failed to allocate a big buffer\n")); + Status = NDIS_STATUS_RESOURCES; + break; + } + + // Zero init this memory block + NdisZeroMemory(pAd->TxBufSpace[num].AllocVa, pAd->TxBufSpace[num].AllocSize); + + // Save PA & VA for further operation + BufBasePaHigh = RTMP_GetPhysicalAddressHigh(pAd->TxBufSpace[num].AllocPa); + BufBasePaLow = RTMP_GetPhysicalAddressLow (pAd->TxBufSpace[num].AllocPa); + BufBaseVa = pAd->TxBufSpace[num].AllocVa; + + // + // Initialize Tx Ring Descriptor and associated buffer memory + // + pTxRing = &pAd->TxRing[num]; + for (index = 0; index < TX_RING_SIZE; index++) + { + pTxRing->Cell[index].pNdisPacket = NULL; + pTxRing->Cell[index].pNextNdisPacket = NULL; + // Init Tx Ring Size, Va, Pa variables + pTxRing->Cell[index].AllocSize = TXD_SIZE; + pTxRing->Cell[index].AllocVa = RingBaseVa; + RTMP_SetPhysicalAddressHigh(pTxRing->Cell[index].AllocPa, RingBasePaHigh); + RTMP_SetPhysicalAddressLow (pTxRing->Cell[index].AllocPa, RingBasePaLow); + + // Setup Tx Buffer size & address. only 802.11 header will store in this space + pDmaBuf = &pTxRing->Cell[index].DmaBuf; + pDmaBuf->AllocSize = TX_DMA_1ST_BUFFER_SIZE; + pDmaBuf->AllocVa = BufBaseVa; + RTMP_SetPhysicalAddressHigh(pDmaBuf->AllocPa, BufBasePaHigh); + RTMP_SetPhysicalAddressLow(pDmaBuf->AllocPa, BufBasePaLow); + + // link the pre-allocated TxBuf to TXD + pTxD = (PTXD_STRUC) pTxRing->Cell[index].AllocVa; + pTxD->SDPtr0 = BufBasePaLow; + // advance to next ring descriptor address + pTxD->DMADONE = 1; +#ifdef RT_BIG_ENDIAN + RTMPDescriptorEndianChange((PUCHAR)pTxD, TYPE_TXD); +#endif + RingBasePaLow += TXD_SIZE; + RingBaseVa = (PUCHAR) RingBaseVa + TXD_SIZE; + + // advance to next TxBuf address + BufBasePaLow += TX_DMA_1ST_BUFFER_SIZE; + BufBaseVa = (PUCHAR) BufBaseVa + TX_DMA_1ST_BUFFER_SIZE; + } + DBGPRINT(RT_DEBUG_TRACE, ("TxRing[%d]: total %d entry allocated\n", num, index)); + } + if (Status == NDIS_STATUS_RESOURCES) + break; + + // + // Allocate MGMT ring descriptor's memory except Tx ring which allocated eariler + // + pAd->MgmtDescRing.AllocSize = MGMT_RING_SIZE * TXD_SIZE; + RTMP_AllocateMgmtDescMemory( + pAd, + pAd->MgmtDescRing.AllocSize, + FALSE, + &pAd->MgmtDescRing.AllocVa, + &pAd->MgmtDescRing.AllocPa); + + if (pAd->MgmtDescRing.AllocVa == NULL) + { + ErrorValue = ERRLOG_OUT_OF_SHARED_MEMORY; + DBGPRINT_ERR(("Failed to allocate a big buffer\n")); + Status = NDIS_STATUS_RESOURCES; + break; + } + + // Zero init this memory block + NdisZeroMemory(pAd->MgmtDescRing.AllocVa, pAd->MgmtDescRing.AllocSize); + + // Save PA & VA for further operation + RingBasePaHigh = RTMP_GetPhysicalAddressHigh(pAd->MgmtDescRing.AllocPa); + RingBasePaLow = RTMP_GetPhysicalAddressLow (pAd->MgmtDescRing.AllocPa); + RingBaseVa = pAd->MgmtDescRing.AllocVa; + + // + // Initialize MGMT Ring and associated buffer memory + // + for (index = 0; index < MGMT_RING_SIZE; index++) + { + pAd->MgmtRing.Cell[index].pNdisPacket = NULL; + pAd->MgmtRing.Cell[index].pNextNdisPacket = NULL; + // Init MGMT Ring Size, Va, Pa variables + pAd->MgmtRing.Cell[index].AllocSize = TXD_SIZE; + pAd->MgmtRing.Cell[index].AllocVa = RingBaseVa; + RTMP_SetPhysicalAddressHigh(pAd->MgmtRing.Cell[index].AllocPa, RingBasePaHigh); + RTMP_SetPhysicalAddressLow (pAd->MgmtRing.Cell[index].AllocPa, RingBasePaLow); + + // Offset to next ring descriptor address + RingBasePaLow += TXD_SIZE; + RingBaseVa = (PUCHAR) RingBaseVa + TXD_SIZE; + + // link the pre-allocated TxBuf to TXD + pTxD = (PTXD_STRUC) pAd->MgmtRing.Cell[index].AllocVa; + pTxD->DMADONE = 1; + +#ifdef RT_BIG_ENDIAN + RTMPDescriptorEndianChange((PUCHAR)pTxD, TYPE_TXD); +#endif + // no pre-allocated buffer required in MgmtRing for scatter-gather case + } + DBGPRINT(RT_DEBUG_TRACE, ("MGMT Ring: total %d entry allocated\n", index)); + + // + // Allocate RX ring descriptor's memory except Tx ring which allocated eariler + // + pAd->RxDescRing.AllocSize = RX_RING_SIZE * RXD_SIZE; + RTMP_AllocateRxDescMemory( + pAd, + pAd->RxDescRing.AllocSize, + FALSE, + &pAd->RxDescRing.AllocVa, + &pAd->RxDescRing.AllocPa); + + if (pAd->RxDescRing.AllocVa == NULL) + { + ErrorValue = ERRLOG_OUT_OF_SHARED_MEMORY; + DBGPRINT_ERR(("Failed to allocate a big buffer\n")); + Status = NDIS_STATUS_RESOURCES; + break; + } + + // Zero init this memory block + NdisZeroMemory(pAd->RxDescRing.AllocVa, pAd->RxDescRing.AllocSize); + + + printk("RX DESC %p size = %ld\n", pAd->RxDescRing.AllocVa, + pAd->RxDescRing.AllocSize); + + // Save PA & VA for further operation + RingBasePaHigh = RTMP_GetPhysicalAddressHigh(pAd->RxDescRing.AllocPa); + RingBasePaLow = RTMP_GetPhysicalAddressLow (pAd->RxDescRing.AllocPa); + RingBaseVa = pAd->RxDescRing.AllocVa; + + // + // Initialize Rx Ring and associated buffer memory + // + for (index = 0; index < RX_RING_SIZE; index++) + { + // Init RX Ring Size, Va, Pa variables + pAd->RxRing.Cell[index].AllocSize = RXD_SIZE; + pAd->RxRing.Cell[index].AllocVa = RingBaseVa; + RTMP_SetPhysicalAddressHigh(pAd->RxRing.Cell[index].AllocPa, RingBasePaHigh); + RTMP_SetPhysicalAddressLow (pAd->RxRing.Cell[index].AllocPa, RingBasePaLow); + + // Offset to next ring descriptor address + RingBasePaLow += RXD_SIZE; + RingBaseVa = (PUCHAR) RingBaseVa + RXD_SIZE; + + // Setup Rx associated Buffer size & allocate share memory + pDmaBuf = &pAd->RxRing.Cell[index].DmaBuf; + pDmaBuf->AllocSize = RX_BUFFER_AGGRESIZE; + pPacket = RTMP_AllocateRxPacketBuffer( + pAd, + pDmaBuf->AllocSize, + FALSE, + &pDmaBuf->AllocVa, + &pDmaBuf->AllocPa); + + /* keep allocated rx packet */ + pAd->RxRing.Cell[index].pNdisPacket = pPacket; + + // Error handling + if (pDmaBuf->AllocVa == NULL) + { + ErrorValue = ERRLOG_OUT_OF_SHARED_MEMORY; + DBGPRINT_ERR(("Failed to allocate RxRing's 1st buffer\n")); + Status = NDIS_STATUS_RESOURCES; + break; + } + + // Zero init this memory block + NdisZeroMemory(pDmaBuf->AllocVa, pDmaBuf->AllocSize); + + // Write RxD buffer address & allocated buffer length + pRxD = (PRXD_STRUC) pAd->RxRing.Cell[index].AllocVa; + pRxD->SDP0 = RTMP_GetPhysicalAddressLow(pDmaBuf->AllocPa); + pRxD->DDONE = 0; + +#ifdef RT_BIG_ENDIAN + RTMPDescriptorEndianChange((PUCHAR)pRxD, TYPE_RXD); +#endif + } + + DBGPRINT(RT_DEBUG_TRACE, ("Rx Ring: total %d entry allocated\n", index)); + + } while (FALSE); + + + NdisZeroMemory(&pAd->FragFrame, sizeof(FRAGMENT_FRAME)); + pAd->FragFrame.pFragPacket = RTMP_AllocateFragPacketBuffer(pAd, RX_BUFFER_NORMSIZE); + + if (pAd->FragFrame.pFragPacket == NULL) + { + Status = NDIS_STATUS_RESOURCES; + } + + if (Status != NDIS_STATUS_SUCCESS) + { + // Log error inforamtion + NdisWriteErrorLogEntry( + pAd->AdapterHandle, + NDIS_ERROR_CODE_OUT_OF_RESOURCES, + 1, + ErrorValue); + } + + DBGPRINT_S(Status, ("<-- RTMPAllocTxRxRingMemory, Status=%x\n", Status)); + return Status; +} + + +/* + ======================================================================== + + Routine Description: + Initialize transmit data structures + + Arguments: + Adapter Pointer to our adapter + + Return Value: + None + + IRQL = PASSIVE_LEVEL + + Note: + Initialize all transmit releated private buffer, include those define + in RTMP_ADAPTER structure and all private data structures. + + ======================================================================== +*/ +VOID NICInitTxRxRingAndBacklogQueue( + IN PRTMP_ADAPTER pAd) +{ + //WPDMA_GLO_CFG_STRUC GloCfg; + int i; + + DBGPRINT(RT_DEBUG_TRACE, ("<--> NICInitTxRxRingAndBacklogQueue\n")); + + // Initialize all transmit related software queues + InitializeQueueHeader(&pAd->TxSwQueue[QID_AC_BE]); + InitializeQueueHeader(&pAd->TxSwQueue[QID_AC_BK]); + InitializeQueueHeader(&pAd->TxSwQueue[QID_AC_VI]); + InitializeQueueHeader(&pAd->TxSwQueue[QID_AC_VO]); + InitializeQueueHeader(&pAd->TxSwQueue[QID_HCCA]); + + // Init RX Ring index pointer + pAd->RxRing.RxSwReadIdx = 0; + pAd->RxRing.RxCpuIdx = RX_RING_SIZE - 1; + + // Init TX rings index pointer + for (i=0; i<NUM_OF_TX_RING; i++) + { + pAd->TxRing[i].TxSwFreeIdx = 0; + pAd->TxRing[i].TxCpuIdx = 0; + } + + // init MGMT ring index pointer + pAd->MgmtRing.TxSwFreeIdx = 0; + pAd->MgmtRing.TxCpuIdx = 0; + + pAd->PrivateInfo.TxRingFullCnt = 0; +} + + +/* + ======================================================================== + + Routine Description: + Reset NIC Asics. Call after rest DMA. So reset TX_CTX_IDX to zero. + + Arguments: + Adapter Pointer to our adapter + + Return Value: + None + + IRQL = PASSIVE_LEVEL + IRQL = DISPATCH_LEVEL + + Note: + Reset NIC to initial state AS IS system boot up time. + + ======================================================================== +*/ +VOID RTMPRingCleanUp( + IN PRTMP_ADAPTER pAd, + IN UCHAR RingType) +{ + PTXD_STRUC pTxD; + PRXD_STRUC pRxD; + PQUEUE_ENTRY pEntry; + PNDIS_PACKET pPacket; + int i; + PRTMP_TX_RING pTxRing; + unsigned long IrqFlags; + + DBGPRINT(RT_DEBUG_TRACE,("RTMPRingCleanUp(RingIdx=%d, Pending-NDIS=%ld)\n", RingType, pAd->RalinkCounters.PendingNdisPacketCount)); + switch (RingType) + { + case QID_AC_BK: + case QID_AC_BE: + case QID_AC_VI: + case QID_AC_VO: + case QID_HCCA: + RTMP_IRQ_LOCK(&pAd->irq_lock, IrqFlags); + pTxRing = &pAd->TxRing[RingType]; + + // We have to clean all descriptors in case some error happened with reset + for (i=0; i<TX_RING_SIZE; i++) // We have to scan all TX ring + { + pTxD = (PTXD_STRUC) pTxRing->Cell[i].AllocVa; + + pPacket = (PNDIS_PACKET) pTxRing->Cell[i].pNdisPacket; + // release scatter-and-gather NDIS_PACKET + if (pPacket) + { + RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_FAILURE); + pTxRing->Cell[i].pNdisPacket = NULL; + } + + pPacket = (PNDIS_PACKET) pTxRing->Cell[i].pNextNdisPacket; + // release scatter-and-gather NDIS_PACKET + if (pPacket) + { + RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_FAILURE); + pTxRing->Cell[i].pNextNdisPacket = NULL; + } + } + + RTMP_IO_READ32(pAd, TX_DTX_IDX0 + RingType * 0x10, &pTxRing->TxDmaIdx); + pTxRing->TxSwFreeIdx = pTxRing->TxDmaIdx; + pTxRing->TxCpuIdx = pTxRing->TxDmaIdx; + RTMP_IO_WRITE32(pAd, TX_CTX_IDX0 + RingType * 0x10, pTxRing->TxCpuIdx); + + RTMP_IRQ_UNLOCK(&pAd->irq_lock, IrqFlags); + RTMP_IRQ_LOCK(&pAd->irq_lock, IrqFlags); + while (pAd->TxSwQueue[RingType].Head != NULL) + { + pEntry = RemoveHeadQueue(&pAd->TxSwQueue[RingType]); + pPacket = QUEUE_ENTRY_TO_PACKET(pEntry); + RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_FAILURE); + DBGPRINT(RT_DEBUG_TRACE,("Release 1 NDIS packet from s/w backlog queue\n")); + } + RTMP_IRQ_UNLOCK(&pAd->irq_lock, IrqFlags); + break; + + case QID_MGMT: + // We have to clean all descriptors in case some error happened with reset + NdisAcquireSpinLock(&pAd->MgmtRingLock); + + for (i=0; i<MGMT_RING_SIZE; i++) + { + pTxD = (PTXD_STRUC) pAd->MgmtRing.Cell[i].AllocVa; + + pPacket = (PNDIS_PACKET) pAd->MgmtRing.Cell[i].pNdisPacket; + // rlease scatter-and-gather NDIS_PACKET + if (pPacket) + { + PCI_UNMAP_SINGLE(pAd, pTxD->SDPtr0, pTxD->SDLen0, PCI_DMA_TODEVICE); + RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_FAILURE); + } + pAd->MgmtRing.Cell[i].pNdisPacket = NULL; + + pPacket = (PNDIS_PACKET) pAd->MgmtRing.Cell[i].pNextNdisPacket; + // release scatter-and-gather NDIS_PACKET + if (pPacket) + { + PCI_UNMAP_SINGLE(pAd, pTxD->SDPtr1, pTxD->SDLen1, PCI_DMA_TODEVICE); + RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_FAILURE); + } + pAd->MgmtRing.Cell[i].pNextNdisPacket = NULL; + + } + + RTMP_IO_READ32(pAd, TX_MGMTDTX_IDX, &pAd->MgmtRing.TxDmaIdx); + pAd->MgmtRing.TxSwFreeIdx = pAd->MgmtRing.TxDmaIdx; + pAd->MgmtRing.TxCpuIdx = pAd->MgmtRing.TxDmaIdx; + RTMP_IO_WRITE32(pAd, TX_MGMTCTX_IDX, pAd->MgmtRing.TxCpuIdx); + + NdisReleaseSpinLock(&pAd->MgmtRingLock); + pAd->RalinkCounters.MgmtRingFullCount = 0; + break; + + case QID_RX: + // We have to clean all descriptors in case some error happened with reset + NdisAcquireSpinLock(&pAd->RxRingLock); + + for (i=0; i<RX_RING_SIZE; i++) + { + pRxD = (PRXD_STRUC) pAd->RxRing.Cell[i].AllocVa; + pRxD->DDONE = 0 ; + } + + RTMP_IO_READ32(pAd, RX_DRX_IDX, &pAd->RxRing.RxDmaIdx); + pAd->RxRing.RxSwReadIdx = pAd->RxRing.RxDmaIdx; + pAd->RxRing.RxCpuIdx = ((pAd->RxRing.RxDmaIdx == 0) ? (RX_RING_SIZE-1) : (pAd->RxRing.RxDmaIdx-1)); + RTMP_IO_WRITE32(pAd, RX_CRX_IDX, pAd->RxRing.RxCpuIdx); + + NdisReleaseSpinLock(&pAd->RxRingLock); + break; + + default: + break; + } +} + + +NDIS_STATUS AdapterBlockAllocateMemory( + IN PVOID handle, + OUT PVOID *ppAd) +{ + PPCI_DEV pci_dev; + dma_addr_t *phy_addr; + POS_COOKIE pObj = (POS_COOKIE) handle; + + pci_dev = pObj->pci_dev; + phy_addr = &pObj->pAd_pa; + + *ppAd = (PVOID)vmalloc(sizeof(RTMP_ADAPTER)); //pci_alloc_consistent(pci_dev, sizeof(RTMP_ADAPTER), phy_addr); + + if (*ppAd) + { + NdisZeroMemory(*ppAd, sizeof(RTMP_ADAPTER)); + ((PRTMP_ADAPTER)*ppAd)->OS_Cookie = handle; + return (NDIS_STATUS_SUCCESS); + } else { + return (NDIS_STATUS_FAILURE); + } +} + + +void RTMP_AllocateTxDescMemory( + IN PRTMP_ADAPTER pAd, + IN UINT Index, + IN ULONG Length, + IN BOOLEAN Cached, + OUT PVOID *VirtualAddress, + OUT PNDIS_PHYSICAL_ADDRESS PhysicalAddress) +{ + POS_COOKIE pObj = (POS_COOKIE)pAd->OS_Cookie; + + *VirtualAddress = (PVOID)PCI_ALLOC_CONSISTENT(pObj->pci_dev,sizeof(char)*Length, PhysicalAddress); + +} + +void RTMP_AllocateMgmtDescMemory( + IN PRTMP_ADAPTER pAd, + IN ULONG Length, + IN BOOLEAN Cached, + OUT PVOID *VirtualAddress, + OUT PNDIS_PHYSICAL_ADDRESS PhysicalAddress) +{ + POS_COOKIE pObj = (POS_COOKIE)pAd->OS_Cookie; + + *VirtualAddress = (PVOID)PCI_ALLOC_CONSISTENT(pObj->pci_dev,sizeof(char)*Length, PhysicalAddress); + +} + +void RTMP_AllocateRxDescMemory( + IN PRTMP_ADAPTER pAd, + IN ULONG Length, + IN BOOLEAN Cached, + OUT PVOID *VirtualAddress, + OUT PNDIS_PHYSICAL_ADDRESS PhysicalAddress) +{ + POS_COOKIE pObj = (POS_COOKIE)pAd->OS_Cookie; + + *VirtualAddress = (PVOID)PCI_ALLOC_CONSISTENT(pObj->pci_dev,sizeof(char)*Length, PhysicalAddress); + +} + +void RTMP_FreeRxDescMemory( + IN PRTMP_ADAPTER pAd, + IN ULONG Length, + IN PVOID VirtualAddress, + IN NDIS_PHYSICAL_ADDRESS PhysicalAddress) +{ + POS_COOKIE pObj = (POS_COOKIE)pAd->OS_Cookie; + + PCI_FREE_CONSISTENT(pObj->pci_dev, Length, VirtualAddress, PhysicalAddress); +} + + +void RTMP_AllocateFirstTxBuffer( + IN PRTMP_ADAPTER pAd, + IN UINT Index, + IN ULONG Length, + IN BOOLEAN Cached, + OUT PVOID *VirtualAddress, + OUT PNDIS_PHYSICAL_ADDRESS PhysicalAddress) +{ + POS_COOKIE pObj = (POS_COOKIE)pAd->OS_Cookie; + + *VirtualAddress = (PVOID)PCI_ALLOC_CONSISTENT(pObj->pci_dev,sizeof(char)*Length, PhysicalAddress); +} + +/* + * FUNCTION: Allocate a common buffer for DMA + * ARGUMENTS: + * AdapterHandle: AdapterHandle + * Length: Number of bytes to allocate + * Cached: Whether or not the memory can be cached + * VirtualAddress: Pointer to memory is returned here + * PhysicalAddress: Physical address corresponding to virtual address + */ + +void RTMP_AllocateSharedMemory( + IN PRTMP_ADAPTER pAd, + IN ULONG Length, + IN BOOLEAN Cached, + OUT PVOID *VirtualAddress, + OUT PNDIS_PHYSICAL_ADDRESS PhysicalAddress) +{ + POS_COOKIE pObj = (POS_COOKIE)pAd->OS_Cookie; + + *VirtualAddress = (PVOID)PCI_ALLOC_CONSISTENT(pObj->pci_dev,sizeof(char)*Length, PhysicalAddress); +} + +VOID RTMPFreeTxRxRingMemory( + IN PRTMP_ADAPTER pAd) +{ + int index, num , j; + PRTMP_TX_RING pTxRing; + PTXD_STRUC pTxD; + PNDIS_PACKET pPacket; + unsigned int IrqFlags; + + POS_COOKIE pObj =(POS_COOKIE) pAd->OS_Cookie; + + DBGPRINT(RT_DEBUG_TRACE, ("--> RTMPFreeTxRxRingMemory\n")); + + // Free TxSwQueue Packet + for (index=0; index <NUM_OF_TX_RING; index++) + { + PQUEUE_ENTRY pEntry; + PNDIS_PACKET pPacket; + PQUEUE_HEADER pQueue; + + RTMP_IRQ_LOCK(&pAd->irq_lock, IrqFlags); + pQueue = &pAd->TxSwQueue[index]; + while (pQueue->Head) + { + pEntry = RemoveHeadQueue(pQueue); + pPacket = QUEUE_ENTRY_TO_PACKET(pEntry); + RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_FAILURE); + } + RTMP_IRQ_UNLOCK(&pAd->irq_lock, IrqFlags); + } + + // Free Tx Ring Packet + for (index=0;index< NUM_OF_TX_RING;index++) + { + pTxRing = &pAd->TxRing[index]; + + for (j=0; j< TX_RING_SIZE; j++) + { + pTxD = (PTXD_STRUC) (pTxRing->Cell[j].AllocVa); + pPacket = pTxRing->Cell[j].pNdisPacket; + + if (pPacket) + { + PCI_UNMAP_SINGLE(pAd, pTxD->SDPtr0, pTxD->SDLen0, PCI_DMA_TODEVICE); + RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_SUCCESS); + } + //Always assign pNdisPacket as NULL after clear + pTxRing->Cell[j].pNdisPacket = NULL; + + pPacket = pTxRing->Cell[j].pNextNdisPacket; + + if (pPacket) + { + PCI_UNMAP_SINGLE(pAd, pTxD->SDPtr1, pTxD->SDLen1, PCI_DMA_TODEVICE); + RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_SUCCESS); + } + //Always assign pNextNdisPacket as NULL after clear + pTxRing->Cell[pTxRing->TxSwFreeIdx].pNextNdisPacket = NULL; + + } + } + + for (index = RX_RING_SIZE - 1 ; index >= 0; index--) + { + if ((pAd->RxRing.Cell[index].DmaBuf.AllocVa) && (pAd->RxRing.Cell[index].pNdisPacket)) + { + PCI_UNMAP_SINGLE(pObj->pci_dev, pAd->RxRing.Cell[index].DmaBuf.AllocPa, pAd->RxRing.Cell[index].DmaBuf.AllocSize, PCI_DMA_FROMDEVICE); + RELEASE_NDIS_PACKET(pAd, pAd->RxRing.Cell[index].pNdisPacket, NDIS_STATUS_SUCCESS); + } + } + NdisZeroMemory(pAd->RxRing.Cell, RX_RING_SIZE * sizeof(RTMP_DMACB)); + + if (pAd->RxDescRing.AllocVa) + { + PCI_FREE_CONSISTENT(pObj->pci_dev, pAd->RxDescRing.AllocSize, pAd->RxDescRing.AllocVa, pAd->RxDescRing.AllocPa); + } + NdisZeroMemory(&pAd->RxDescRing, sizeof(RTMP_DMABUF)); + + if (pAd->MgmtDescRing.AllocVa) + { + PCI_FREE_CONSISTENT(pObj->pci_dev, pAd->MgmtDescRing.AllocSize, pAd->MgmtDescRing.AllocVa, pAd->MgmtDescRing.AllocPa); + } + NdisZeroMemory(&pAd->MgmtDescRing, sizeof(RTMP_DMABUF)); + + for (num = 0; num < NUM_OF_TX_RING; num++) + { + if (pAd->TxBufSpace[num].AllocVa) + { + PCI_FREE_CONSISTENT(pObj->pci_dev, pAd->TxBufSpace[num].AllocSize, pAd->TxBufSpace[num].AllocVa, pAd->TxBufSpace[num].AllocPa); + } + NdisZeroMemory(&pAd->TxBufSpace[num], sizeof(RTMP_DMABUF)); + + if (pAd->TxDescRing[num].AllocVa) + { + PCI_FREE_CONSISTENT(pObj->pci_dev, pAd->TxDescRing[num].AllocSize, pAd->TxDescRing[num].AllocVa, pAd->TxDescRing[num].AllocPa); + } + NdisZeroMemory(&pAd->TxDescRing[num], sizeof(RTMP_DMABUF)); + } + + if (pAd->FragFrame.pFragPacket) + RELEASE_NDIS_PACKET(pAd, pAd->FragFrame.pFragPacket, NDIS_STATUS_SUCCESS); + + DBGPRINT(RT_DEBUG_TRACE, ("<-- RTMPFreeTxRxRingMemory\n")); +} + + +/* + * FUNCTION: Allocate a packet buffer for DMA + * ARGUMENTS: + * AdapterHandle: AdapterHandle + * Length: Number of bytes to allocate + * Cached: Whether or not the memory can be cached + * VirtualAddress: Pointer to memory is returned here + * PhysicalAddress: Physical address corresponding to virtual address + * Notes: + * Cached is ignored: always cached memory + */ +PNDIS_PACKET RTMP_AllocateRxPacketBuffer( + IN PRTMP_ADAPTER pAd, + IN ULONG Length, + IN BOOLEAN Cached, + OUT PVOID *VirtualAddress, + OUT PNDIS_PHYSICAL_ADDRESS PhysicalAddress) +{ + PNDIS_PACKET pkt; + + pkt = RTPKT_TO_OSPKT(DEV_ALLOC_SKB(Length)); + + if (pkt == NULL) { + DBGPRINT(RT_DEBUG_ERROR, ("can't allocate rx %ld size packet\n",Length)); + } + + if (pkt) { + RTMP_SET_PACKET_SOURCE(pkt, PKTSRC_NDIS); + *VirtualAddress = (PVOID) RTPKT_TO_OSPKT(pkt)->data; + *PhysicalAddress = PCI_MAP_SINGLE(pAd, *VirtualAddress, Length, -1, PCI_DMA_FROMDEVICE); + } else { + *VirtualAddress = (PVOID) NULL; + *PhysicalAddress = (NDIS_PHYSICAL_ADDRESS) NULL; + } + + return (PNDIS_PACKET) pkt; +} + + +VOID Invalid_Remaining_Packet( + IN PRTMP_ADAPTER pAd, + IN ULONG VirtualAddress) +{ + NDIS_PHYSICAL_ADDRESS PhysicalAddress; + + PhysicalAddress = PCI_MAP_SINGLE(pAd, (void *)(VirtualAddress+1600), RX_BUFFER_NORMSIZE-1600, -1, PCI_DMA_FROMDEVICE); +} + +PNDIS_PACKET GetPacketFromRxRing( + IN PRTMP_ADAPTER pAd, + OUT PRT28XX_RXD_STRUC pSaveRxD, + OUT BOOLEAN *pbReschedule, + IN OUT UINT32 *pRxPending) +{ + PRXD_STRUC pRxD; +#ifdef RT_BIG_ENDIAN + PRXD_STRUC pDestRxD; + RXD_STRUC RxD; +#endif + PNDIS_PACKET pRxPacket = NULL; + PNDIS_PACKET pNewPacket; + PVOID AllocVa; + NDIS_PHYSICAL_ADDRESS AllocPa; + BOOLEAN bReschedule = FALSE; + + RTMP_SEM_LOCK(&pAd->RxRingLock); + + if (*pRxPending == 0) + { + // Get how may packets had been received + RTMP_IO_READ32(pAd, RX_DRX_IDX , &pAd->RxRing.RxDmaIdx); + + if (pAd->RxRing.RxSwReadIdx == pAd->RxRing.RxDmaIdx) + { + // no more rx packets + bReschedule = FALSE; + goto done; + } + + // get rx pending count + if (pAd->RxRing.RxDmaIdx > pAd->RxRing.RxSwReadIdx) + *pRxPending = pAd->RxRing.RxDmaIdx - pAd->RxRing.RxSwReadIdx; + else + *pRxPending = pAd->RxRing.RxDmaIdx + RX_RING_SIZE - pAd->RxRing.RxSwReadIdx; + + } + +#ifdef RT_BIG_ENDIAN + pDestRxD = (PRXD_STRUC) pAd->RxRing.Cell[pAd->RxRing.RxSwReadIdx].AllocVa; + RxD = *pDestRxD; + pRxD = &RxD; + RTMPDescriptorEndianChange((PUCHAR)pRxD, TYPE_RXD); +#else + // Point to Rx indexed rx ring descriptor + pRxD = (PRXD_STRUC) pAd->RxRing.Cell[pAd->RxRing.RxSwReadIdx].AllocVa; +#endif + + if (pRxD->DDONE == 0) + { + *pRxPending = 0; + // DMAIndx had done but DDONE bit not ready + bReschedule = TRUE; + goto done; + } + + + // return rx descriptor + NdisMoveMemory(pSaveRxD, pRxD, RXD_SIZE); + + pNewPacket = RTMP_AllocateRxPacketBuffer(pAd, RX_BUFFER_AGGRESIZE, FALSE, &AllocVa, &AllocPa); + + if (pNewPacket) + { + // unmap the rx buffer + PCI_UNMAP_SINGLE(pAd, pAd->RxRing.Cell[pAd->RxRing.RxSwReadIdx].DmaBuf.AllocPa, + pAd->RxRing.Cell[pAd->RxRing.RxSwReadIdx].DmaBuf.AllocSize, PCI_DMA_FROMDEVICE); + pRxPacket = pAd->RxRing.Cell[pAd->RxRing.RxSwReadIdx].pNdisPacket; + + pAd->RxRing.Cell[pAd->RxRing.RxSwReadIdx].DmaBuf.AllocSize = RX_BUFFER_AGGRESIZE; + pAd->RxRing.Cell[pAd->RxRing.RxSwReadIdx].pNdisPacket = (PNDIS_PACKET) pNewPacket; + pAd->RxRing.Cell[pAd->RxRing.RxSwReadIdx].DmaBuf.AllocVa = AllocVa; + pAd->RxRing.Cell[pAd->RxRing.RxSwReadIdx].DmaBuf.AllocPa = AllocPa; + /* update SDP0 to new buffer of rx packet */ + pRxD->SDP0 = AllocPa; + } + else + { + //printk("No Rx Buffer\n"); + pRxPacket = NULL; + bReschedule = TRUE; + } + + pRxD->DDONE = 0; + + // had handled one rx packet + *pRxPending = *pRxPending - 1; + + // update rx descriptor and kick rx +#ifdef RT_BIG_ENDIAN + RTMPDescriptorEndianChange((PUCHAR)pRxD, TYPE_RXD); + WriteBackToDescriptor((PUCHAR)pDestRxD, (PUCHAR)pRxD, FALSE, TYPE_RXD); +#endif + INC_RING_INDEX(pAd->RxRing.RxSwReadIdx, RX_RING_SIZE); + + pAd->RxRing.RxCpuIdx = (pAd->RxRing.RxSwReadIdx == 0) ? (RX_RING_SIZE-1) : (pAd->RxRing.RxSwReadIdx-1); + RTMP_IO_WRITE32(pAd, RX_CRX_IDX, pAd->RxRing.RxCpuIdx); + +done: + RTMP_SEM_UNLOCK(&pAd->RxRingLock); + *pbReschedule = bReschedule; + return pRxPacket; +} +/* End of 2860_rtmp_init.c */ + |