| /* |
| ************************************************************************* |
| * 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: |
| rt_pci_rbus.c |
| |
| Abstract: |
| Create and register network interface. |
| |
| Revision History: |
| Who When What |
| -------- ---------- ---------------------------------------------- |
| */ |
| |
| #include "rt_config.h" |
| #include <linux/pci.h> |
| |
| IRQ_HANDLE_TYPE rt2860_interrupt(int irq, void *dev_instance); |
| |
| static void rx_done_tasklet(unsigned long data); |
| static void mgmt_dma_done_tasklet(unsigned long data); |
| static void ac0_dma_done_tasklet(unsigned long data); |
| static void ac1_dma_done_tasklet(unsigned long data); |
| static void ac2_dma_done_tasklet(unsigned long data); |
| static void ac3_dma_done_tasklet(unsigned long data); |
| static void fifo_statistic_full_tasklet(unsigned long data); |
| |
| /*---------------------------------------------------------------------*/ |
| /* Symbol & Macro Definitions */ |
| /*---------------------------------------------------------------------*/ |
| #define RT2860_INT_RX_DLY (1<<0) /* bit 0 */ |
| #define RT2860_INT_TX_DLY (1<<1) /* bit 1 */ |
| #define RT2860_INT_RX_DONE (1<<2) /* bit 2 */ |
| #define RT2860_INT_AC0_DMA_DONE (1<<3) /* bit 3 */ |
| #define RT2860_INT_AC1_DMA_DONE (1<<4) /* bit 4 */ |
| #define RT2860_INT_AC2_DMA_DONE (1<<5) /* bit 5 */ |
| #define RT2860_INT_AC3_DMA_DONE (1<<6) /* bit 6 */ |
| #define RT2860_INT_HCCA_DMA_DONE (1<<7) /* bit 7 */ |
| #define RT2860_INT_MGMT_DONE (1<<8) /* bit 8 */ |
| |
| #define INT_RX RT2860_INT_RX_DONE |
| |
| #define INT_AC0_DLY (RT2860_INT_AC0_DMA_DONE) /*| RT2860_INT_TX_DLY) */ |
| #define INT_AC1_DLY (RT2860_INT_AC1_DMA_DONE) /*| RT2860_INT_TX_DLY) */ |
| #define INT_AC2_DLY (RT2860_INT_AC2_DMA_DONE) /*| RT2860_INT_TX_DLY) */ |
| #define INT_AC3_DLY (RT2860_INT_AC3_DMA_DONE) /*| RT2860_INT_TX_DLY) */ |
| #define INT_HCCA_DLY (RT2860_INT_HCCA_DMA_DONE) /*| RT2860_INT_TX_DLY) */ |
| #define INT_MGMT_DLY RT2860_INT_MGMT_DONE |
| |
| /*************************************************************************** |
| * |
| * Interface-depended memory allocation/Free related procedures. |
| * Mainly for Hardware TxDesc/RxDesc/MgmtDesc, DMA Memory for TxData/RxData, etc., |
| * |
| **************************************************************************/ |
| /* Function for TxDesc Memory allocation. */ |
| void RTMP_AllocateTxDescMemory(struct rt_rtmp_adapter *pAd, |
| u32 Index, |
| unsigned long Length, |
| IN BOOLEAN Cached, |
| void **VirtualAddress, |
| dma_addr_t *PhysicalAddress) |
| { |
| struct os_cookie *pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| *VirtualAddress = |
| (void *)pci_alloc_consistent(pObj->pci_dev, sizeof(char) * Length, |
| PhysicalAddress); |
| |
| } |
| |
| /* Function for MgmtDesc Memory allocation. */ |
| void RTMP_AllocateMgmtDescMemory(struct rt_rtmp_adapter *pAd, |
| unsigned long Length, |
| IN BOOLEAN Cached, |
| void **VirtualAddress, |
| dma_addr_t *PhysicalAddress) |
| { |
| struct os_cookie *pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| *VirtualAddress = |
| (void *)pci_alloc_consistent(pObj->pci_dev, sizeof(char) * Length, |
| PhysicalAddress); |
| |
| } |
| |
| /* Function for RxDesc Memory allocation. */ |
| void RTMP_AllocateRxDescMemory(struct rt_rtmp_adapter *pAd, |
| unsigned long Length, |
| IN BOOLEAN Cached, |
| void **VirtualAddress, |
| dma_addr_t *PhysicalAddress) |
| { |
| struct os_cookie *pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| *VirtualAddress = |
| (void *)pci_alloc_consistent(pObj->pci_dev, sizeof(char) * Length, |
| PhysicalAddress); |
| |
| } |
| |
| /* Function for free allocated Desc Memory. */ |
| void RTMP_FreeDescMemory(struct rt_rtmp_adapter *pAd, |
| unsigned long Length, |
| void *VirtualAddress, |
| dma_addr_t PhysicalAddress) |
| { |
| struct os_cookie *pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| pci_free_consistent(pObj->pci_dev, Length, VirtualAddress, |
| PhysicalAddress); |
| } |
| |
| /* Function for TxData DMA Memory allocation. */ |
| void RTMP_AllocateFirstTxBuffer(struct rt_rtmp_adapter *pAd, |
| u32 Index, |
| unsigned long Length, |
| IN BOOLEAN Cached, |
| void **VirtualAddress, |
| dma_addr_t *PhysicalAddress) |
| { |
| struct os_cookie *pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| *VirtualAddress = |
| (void *)pci_alloc_consistent(pObj->pci_dev, sizeof(char) * Length, |
| PhysicalAddress); |
| } |
| |
| void RTMP_FreeFirstTxBuffer(struct rt_rtmp_adapter *pAd, |
| unsigned long Length, |
| IN BOOLEAN Cached, |
| void *VirtualAddress, |
| dma_addr_t PhysicalAddress) |
| { |
| struct os_cookie *pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| pci_free_consistent(pObj->pci_dev, Length, VirtualAddress, |
| 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(struct rt_rtmp_adapter *pAd, |
| unsigned long Length, |
| IN BOOLEAN Cached, |
| void **VirtualAddress, |
| dma_addr_t *PhysicalAddress) |
| { |
| struct os_cookie *pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| *VirtualAddress = |
| (void *)pci_alloc_consistent(pObj->pci_dev, sizeof(char) * Length, |
| PhysicalAddress); |
| } |
| |
| /* |
| * 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 |
| */ |
| void *RTMP_AllocateRxPacketBuffer(struct rt_rtmp_adapter *pAd, |
| unsigned long Length, |
| IN BOOLEAN Cached, |
| void **VirtualAddress, |
| OUT dma_addr_t * |
| PhysicalAddress) |
| { |
| struct sk_buff *pkt; |
| |
| pkt = 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(OSPKT_TO_RTPKT(pkt), PKTSRC_NDIS); |
| *VirtualAddress = (void *)pkt->data; |
| *PhysicalAddress = |
| PCI_MAP_SINGLE(pAd, *VirtualAddress, Length, -1, |
| PCI_DMA_FROMDEVICE); |
| } else { |
| *VirtualAddress = (void *)NULL; |
| *PhysicalAddress = (dma_addr_t)NULL; |
| } |
| |
| return (void *)pkt; |
| } |
| |
| void Invalid_Remaining_Packet(struct rt_rtmp_adapter *pAd, unsigned long VirtualAddress) |
| { |
| dma_addr_t PhysicalAddress; |
| |
| PhysicalAddress = |
| PCI_MAP_SINGLE(pAd, (void *)(VirtualAddress + 1600), |
| RX_BUFFER_NORMSIZE - 1600, -1, PCI_DMA_FROMDEVICE); |
| } |
| |
| int RtmpNetTaskInit(struct rt_rtmp_adapter *pAd) |
| { |
| struct os_cookie *pObj; |
| |
| pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| tasklet_init(&pObj->rx_done_task, rx_done_tasklet, (unsigned long)pAd); |
| tasklet_init(&pObj->mgmt_dma_done_task, mgmt_dma_done_tasklet, |
| (unsigned long)pAd); |
| tasklet_init(&pObj->ac0_dma_done_task, ac0_dma_done_tasklet, |
| (unsigned long)pAd); |
| tasklet_init(&pObj->ac1_dma_done_task, ac1_dma_done_tasklet, |
| (unsigned long)pAd); |
| tasklet_init(&pObj->ac2_dma_done_task, ac2_dma_done_tasklet, |
| (unsigned long)pAd); |
| tasklet_init(&pObj->ac3_dma_done_task, ac3_dma_done_tasklet, |
| (unsigned long)pAd); |
| tasklet_init(&pObj->tbtt_task, tbtt_tasklet, (unsigned long)pAd); |
| tasklet_init(&pObj->fifo_statistic_full_task, |
| fifo_statistic_full_tasklet, (unsigned long)pAd); |
| |
| return NDIS_STATUS_SUCCESS; |
| } |
| |
| void RtmpNetTaskExit(struct rt_rtmp_adapter *pAd) |
| { |
| struct os_cookie *pObj; |
| |
| pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| tasklet_kill(&pObj->rx_done_task); |
| tasklet_kill(&pObj->mgmt_dma_done_task); |
| tasklet_kill(&pObj->ac0_dma_done_task); |
| tasklet_kill(&pObj->ac1_dma_done_task); |
| tasklet_kill(&pObj->ac2_dma_done_task); |
| tasklet_kill(&pObj->ac3_dma_done_task); |
| tasklet_kill(&pObj->tbtt_task); |
| tasklet_kill(&pObj->fifo_statistic_full_task); |
| } |
| |
| int RtmpMgmtTaskInit(struct rt_rtmp_adapter *pAd) |
| { |
| |
| return NDIS_STATUS_SUCCESS; |
| } |
| |
| /* |
| ======================================================================== |
| Routine Description: |
| Close kernel threads. |
| |
| Arguments: |
| *pAd the raxx interface data pointer |
| |
| Return Value: |
| NONE |
| |
| Note: |
| ======================================================================== |
| */ |
| void RtmpMgmtTaskExit(struct rt_rtmp_adapter *pAd) |
| { |
| |
| return; |
| } |
| |
| static inline void rt2860_int_enable(struct rt_rtmp_adapter *pAd, unsigned int mode) |
| { |
| u32 regValue; |
| |
| pAd->int_disable_mask &= ~(mode); |
| regValue = pAd->int_enable_reg & ~(pAd->int_disable_mask); |
| /*if (!OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_DOZE)) */ |
| { |
| RTMP_IO_WRITE32(pAd, INT_MASK_CSR, regValue); /* 1:enable */ |
| } |
| /*else */ |
| /* DBGPRINT(RT_DEBUG_TRACE, ("fOP_STATUS_DOZE !\n")); */ |
| |
| if (regValue != 0) |
| RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_INTERRUPT_ACTIVE); |
| } |
| |
| static inline void rt2860_int_disable(struct rt_rtmp_adapter *pAd, unsigned int mode) |
| { |
| u32 regValue; |
| |
| pAd->int_disable_mask |= mode; |
| regValue = pAd->int_enable_reg & ~(pAd->int_disable_mask); |
| RTMP_IO_WRITE32(pAd, INT_MASK_CSR, regValue); /* 0: disable */ |
| |
| if (regValue == 0) { |
| RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_INTERRUPT_ACTIVE); |
| } |
| } |
| |
| /*************************************************************************** |
| * |
| * tasklet related procedures. |
| * |
| **************************************************************************/ |
| static void mgmt_dma_done_tasklet(unsigned long data) |
| { |
| unsigned long flags; |
| struct rt_rtmp_adapter *pAd = (struct rt_rtmp_adapter *)data; |
| INT_SOURCE_CSR_STRUC IntSource; |
| struct os_cookie *pObj; |
| |
| /* Do nothing if the driver is starting halt state. */ |
| /* This might happen when timer already been fired before cancel timer with mlmehalt */ |
| if (RTMP_TEST_FLAG |
| (pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS | fRTMP_ADAPTER_NIC_NOT_EXIST)) |
| return; |
| |
| pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| /* printk("mgmt_dma_done_process\n"); */ |
| IntSource.word = 0; |
| IntSource.field.MgmtDmaDone = 1; |
| pAd->int_pending &= ~INT_MGMT_DLY; |
| |
| RTMPHandleMgmtRingDmaDoneInterrupt(pAd); |
| |
| /* if you use RTMP_SEM_LOCK, sometimes kernel will hang up, no any */ |
| /* bug report output */ |
| RTMP_INT_LOCK(&pAd->irq_lock, flags); |
| /* |
| * double check to avoid lose of interrupts |
| */ |
| if (pAd->int_pending & INT_MGMT_DLY) { |
| tasklet_hi_schedule(&pObj->mgmt_dma_done_task); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| return; |
| } |
| |
| /* enable TxDataInt again */ |
| rt2860_int_enable(pAd, INT_MGMT_DLY); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| } |
| |
| static void rx_done_tasklet(unsigned long data) |
| { |
| unsigned long flags; |
| struct rt_rtmp_adapter *pAd = (struct rt_rtmp_adapter *)data; |
| BOOLEAN bReschedule = 0; |
| struct os_cookie *pObj; |
| |
| /* Do nothing if the driver is starting halt state. */ |
| /* This might happen when timer already been fired before cancel timer with mlmehalt */ |
| if (RTMP_TEST_FLAG |
| (pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS | fRTMP_ADAPTER_NIC_NOT_EXIST)) |
| return; |
| |
| pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| pAd->int_pending &= ~(INT_RX); |
| bReschedule = STARxDoneInterruptHandle(pAd, 0); |
| |
| RTMP_INT_LOCK(&pAd->irq_lock, flags); |
| /* |
| * double check to avoid rotting packet |
| */ |
| if (pAd->int_pending & INT_RX || bReschedule) { |
| tasklet_hi_schedule(&pObj->rx_done_task); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| return; |
| } |
| |
| /* enable Rxint again */ |
| rt2860_int_enable(pAd, INT_RX); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| |
| } |
| |
| void fifo_statistic_full_tasklet(unsigned long data) |
| { |
| unsigned long flags; |
| struct rt_rtmp_adapter *pAd = (struct rt_rtmp_adapter *)data; |
| struct os_cookie *pObj; |
| |
| /* Do nothing if the driver is starting halt state. */ |
| /* This might happen when timer already been fired before cancel timer with mlmehalt */ |
| if (RTMP_TEST_FLAG |
| (pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS | fRTMP_ADAPTER_NIC_NOT_EXIST)) |
| return; |
| |
| pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| pAd->int_pending &= ~(FifoStaFullInt); |
| NICUpdateFifoStaCounters(pAd); |
| |
| RTMP_INT_LOCK(&pAd->irq_lock, flags); |
| /* |
| * double check to avoid rotting packet |
| */ |
| if (pAd->int_pending & FifoStaFullInt) { |
| tasklet_hi_schedule(&pObj->fifo_statistic_full_task); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| return; |
| } |
| |
| /* enable Rxint again */ |
| |
| rt2860_int_enable(pAd, FifoStaFullInt); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| |
| } |
| |
| static void ac3_dma_done_tasklet(unsigned long data) |
| { |
| unsigned long flags; |
| struct rt_rtmp_adapter *pAd = (struct rt_rtmp_adapter *)data; |
| INT_SOURCE_CSR_STRUC IntSource; |
| struct os_cookie *pObj; |
| BOOLEAN bReschedule = 0; |
| |
| /* Do nothing if the driver is starting halt state. */ |
| /* This might happen when timer already been fired before cancel timer with mlmehalt */ |
| if (RTMP_TEST_FLAG |
| (pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS | fRTMP_ADAPTER_NIC_NOT_EXIST)) |
| return; |
| |
| pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| /* printk("ac0_dma_done_process\n"); */ |
| IntSource.word = 0; |
| IntSource.field.Ac3DmaDone = 1; |
| pAd->int_pending &= ~INT_AC3_DLY; |
| |
| bReschedule = RTMPHandleTxRingDmaDoneInterrupt(pAd, IntSource); |
| |
| RTMP_INT_LOCK(&pAd->irq_lock, flags); |
| /* |
| * double check to avoid lose of interrupts |
| */ |
| if ((pAd->int_pending & INT_AC3_DLY) || bReschedule) { |
| tasklet_hi_schedule(&pObj->ac3_dma_done_task); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| return; |
| } |
| |
| /* enable TxDataInt again */ |
| rt2860_int_enable(pAd, INT_AC3_DLY); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| } |
| |
| static void ac2_dma_done_tasklet(unsigned long data) |
| { |
| unsigned long flags; |
| struct rt_rtmp_adapter *pAd = (struct rt_rtmp_adapter *)data; |
| INT_SOURCE_CSR_STRUC IntSource; |
| struct os_cookie *pObj; |
| BOOLEAN bReschedule = 0; |
| |
| /* Do nothing if the driver is starting halt state. */ |
| /* This might happen when timer already been fired before cancel timer with mlmehalt */ |
| if (RTMP_TEST_FLAG |
| (pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS | fRTMP_ADAPTER_NIC_NOT_EXIST)) |
| return; |
| |
| pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| IntSource.word = 0; |
| IntSource.field.Ac2DmaDone = 1; |
| pAd->int_pending &= ~INT_AC2_DLY; |
| |
| bReschedule = RTMPHandleTxRingDmaDoneInterrupt(pAd, IntSource); |
| |
| RTMP_INT_LOCK(&pAd->irq_lock, flags); |
| |
| /* |
| * double check to avoid lose of interrupts |
| */ |
| if ((pAd->int_pending & INT_AC2_DLY) || bReschedule) { |
| tasklet_hi_schedule(&pObj->ac2_dma_done_task); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| return; |
| } |
| |
| /* enable TxDataInt again */ |
| rt2860_int_enable(pAd, INT_AC2_DLY); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| } |
| |
| static void ac1_dma_done_tasklet(unsigned long data) |
| { |
| unsigned long flags; |
| struct rt_rtmp_adapter *pAd = (struct rt_rtmp_adapter *)data; |
| INT_SOURCE_CSR_STRUC IntSource; |
| struct os_cookie *pObj; |
| BOOLEAN bReschedule = 0; |
| |
| /* Do nothing if the driver is starting halt state. */ |
| /* This might happen when timer already been fired before cancel timer with mlmehalt */ |
| if (RTMP_TEST_FLAG |
| (pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS | fRTMP_ADAPTER_NIC_NOT_EXIST)) |
| return; |
| |
| pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| /* printk("ac0_dma_done_process\n"); */ |
| IntSource.word = 0; |
| IntSource.field.Ac1DmaDone = 1; |
| pAd->int_pending &= ~INT_AC1_DLY; |
| |
| bReschedule = RTMPHandleTxRingDmaDoneInterrupt(pAd, IntSource); |
| |
| RTMP_INT_LOCK(&pAd->irq_lock, flags); |
| /* |
| * double check to avoid lose of interrupts |
| */ |
| if ((pAd->int_pending & INT_AC1_DLY) || bReschedule) { |
| tasklet_hi_schedule(&pObj->ac1_dma_done_task); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| return; |
| } |
| |
| /* enable TxDataInt again */ |
| rt2860_int_enable(pAd, INT_AC1_DLY); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| } |
| |
| static void ac0_dma_done_tasklet(unsigned long data) |
| { |
| unsigned long flags; |
| struct rt_rtmp_adapter *pAd = (struct rt_rtmp_adapter *)data; |
| INT_SOURCE_CSR_STRUC IntSource; |
| struct os_cookie *pObj; |
| BOOLEAN bReschedule = 0; |
| |
| /* Do nothing if the driver is starting halt state. */ |
| /* This might happen when timer already been fired before cancel timer with mlmehalt */ |
| if (RTMP_TEST_FLAG |
| (pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS | fRTMP_ADAPTER_NIC_NOT_EXIST)) |
| return; |
| |
| pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| /* printk("ac0_dma_done_process\n"); */ |
| IntSource.word = 0; |
| IntSource.field.Ac0DmaDone = 1; |
| pAd->int_pending &= ~INT_AC0_DLY; |
| |
| /* RTMPHandleMgmtRingDmaDoneInterrupt(pAd); */ |
| bReschedule = RTMPHandleTxRingDmaDoneInterrupt(pAd, IntSource); |
| |
| RTMP_INT_LOCK(&pAd->irq_lock, flags); |
| /* |
| * double check to avoid lose of interrupts |
| */ |
| if ((pAd->int_pending & INT_AC0_DLY) || bReschedule) { |
| tasklet_hi_schedule(&pObj->ac0_dma_done_task); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| return; |
| } |
| |
| /* enable TxDataInt again */ |
| rt2860_int_enable(pAd, INT_AC0_DLY); |
| RTMP_INT_UNLOCK(&pAd->irq_lock, flags); |
| } |
| |
| /*************************************************************************** |
| * |
| * interrupt handler related procedures. |
| * |
| **************************************************************************/ |
| int print_int_count; |
| |
| IRQ_HANDLE_TYPE rt2860_interrupt(int irq, void *dev_instance) |
| { |
| struct net_device *net_dev = (struct net_device *)dev_instance; |
| struct rt_rtmp_adapter *pAd = NULL; |
| INT_SOURCE_CSR_STRUC IntSource; |
| struct os_cookie *pObj; |
| |
| GET_PAD_FROM_NET_DEV(pAd, net_dev); |
| |
| pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| /* Note 03312008: we can not return here before |
| RTMP_IO_READ32(pAd, INT_SOURCE_CSR, &IntSource.word); |
| RTMP_IO_WRITE32(pAd, INT_SOURCE_CSR, IntSource.word); |
| Or kernel will panic after ifconfig ra0 down sometimes */ |
| |
| /* */ |
| /* Inital the Interrupt source. */ |
| /* */ |
| IntSource.word = 0x00000000L; |
| /* McuIntSource.word = 0x00000000L; */ |
| |
| /* */ |
| /* Get the interrupt sources & saved to local variable */ |
| /* */ |
| /*RTMP_IO_READ32(pAd, where, &McuIntSource.word); */ |
| /*RTMP_IO_WRITE32(pAd, , McuIntSource.word); */ |
| |
| /* */ |
| /* Flag fOP_STATUS_DOZE On, means ASIC put to sleep, elase means ASICK WakeUp */ |
| /* And at the same time, clock maybe turned off that say there is no DMA service. */ |
| /* when ASIC get to sleep. */ |
| /* To prevent system hang on power saving. */ |
| /* We need to check it before handle the INT_SOURCE_CSR, ASIC must be wake up. */ |
| /* */ |
| /* RT2661 => when ASIC is sleeping, MAC register cannot be read and written. */ |
| /* RT2860 => when ASIC is sleeping, MAC register can be read and written. */ |
| /* if (!OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_DOZE)) */ |
| { |
| RTMP_IO_READ32(pAd, INT_SOURCE_CSR, &IntSource.word); |
| RTMP_IO_WRITE32(pAd, INT_SOURCE_CSR, IntSource.word); /* write 1 to clear */ |
| } |
| /* else */ |
| /* DBGPRINT(RT_DEBUG_TRACE, (">>>fOP_STATUS_DOZE<<<\n")); */ |
| |
| /* RTMP_IO_READ32(pAd, INT_SOURCE_CSR, &IsrAfterClear); */ |
| /* RTMP_IO_READ32(pAd, MCU_INT_SOURCE_CSR, &McuIsrAfterClear); */ |
| /* DBGPRINT(RT_DEBUG_INFO, ("====> RTMPHandleInterrupt(ISR=%08x,Mcu ISR=%08x, After clear ISR=%08x, MCU ISR=%08x)\n", */ |
| /* IntSource.word, McuIntSource.word, IsrAfterClear, McuIsrAfterClear)); */ |
| |
| /* Do nothing if Reset in progress */ |
| if (RTMP_TEST_FLAG |
| (pAd, |
| (fRTMP_ADAPTER_RESET_IN_PROGRESS | |
| fRTMP_ADAPTER_HALT_IN_PROGRESS))) { |
| return IRQ_HANDLED; |
| } |
| /* */ |
| /* Handle interrupt, walk through all bits */ |
| /* Should start from highest priority interrupt */ |
| /* The priority can be adjust by altering processing if statement */ |
| /* */ |
| |
| #ifdef DBG |
| |
| #endif |
| |
| pAd->bPCIclkOff = FALSE; |
| |
| /* If required spinlock, each interrupt service routine has to acquire */ |
| /* and release itself. */ |
| /* */ |
| |
| /* Do nothing if NIC doesn't exist */ |
| if (IntSource.word == 0xffffffff) { |
| RTMP_SET_FLAG(pAd, |
| (fRTMP_ADAPTER_NIC_NOT_EXIST | |
| fRTMP_ADAPTER_HALT_IN_PROGRESS)); |
| return IRQ_HANDLED; |
| } |
| |
| if (IntSource.word & TxCoherent) { |
| DBGPRINT(RT_DEBUG_ERROR, (">>>TxCoherent<<<\n")); |
| RTMPHandleRxCoherentInterrupt(pAd); |
| } |
| |
| if (IntSource.word & RxCoherent) { |
| DBGPRINT(RT_DEBUG_ERROR, (">>>RxCoherent<<<\n")); |
| RTMPHandleRxCoherentInterrupt(pAd); |
| } |
| |
| if (IntSource.word & FifoStaFullInt) { |
| if ((pAd->int_disable_mask & FifoStaFullInt) == 0) { |
| /* mask FifoStaFullInt */ |
| rt2860_int_disable(pAd, FifoStaFullInt); |
| tasklet_hi_schedule(&pObj->fifo_statistic_full_task); |
| } |
| pAd->int_pending |= FifoStaFullInt; |
| } |
| |
| if (IntSource.word & INT_MGMT_DLY) { |
| if ((pAd->int_disable_mask & INT_MGMT_DLY) == 0) { |
| rt2860_int_disable(pAd, INT_MGMT_DLY); |
| tasklet_hi_schedule(&pObj->mgmt_dma_done_task); |
| } |
| pAd->int_pending |= INT_MGMT_DLY; |
| } |
| |
| if (IntSource.word & INT_RX) { |
| if ((pAd->int_disable_mask & INT_RX) == 0) { |
| |
| /* mask Rxint */ |
| rt2860_int_disable(pAd, INT_RX); |
| tasklet_hi_schedule(&pObj->rx_done_task); |
| } |
| pAd->int_pending |= INT_RX; |
| } |
| |
| if (IntSource.word & INT_AC3_DLY) { |
| |
| if ((pAd->int_disable_mask & INT_AC3_DLY) == 0) { |
| /* mask TxDataInt */ |
| rt2860_int_disable(pAd, INT_AC3_DLY); |
| tasklet_hi_schedule(&pObj->ac3_dma_done_task); |
| } |
| pAd->int_pending |= INT_AC3_DLY; |
| } |
| |
| if (IntSource.word & INT_AC2_DLY) { |
| |
| if ((pAd->int_disable_mask & INT_AC2_DLY) == 0) { |
| /* mask TxDataInt */ |
| rt2860_int_disable(pAd, INT_AC2_DLY); |
| tasklet_hi_schedule(&pObj->ac2_dma_done_task); |
| } |
| pAd->int_pending |= INT_AC2_DLY; |
| } |
| |
| if (IntSource.word & INT_AC1_DLY) { |
| |
| pAd->int_pending |= INT_AC1_DLY; |
| |
| if ((pAd->int_disable_mask & INT_AC1_DLY) == 0) { |
| /* mask TxDataInt */ |
| rt2860_int_disable(pAd, INT_AC1_DLY); |
| tasklet_hi_schedule(&pObj->ac1_dma_done_task); |
| } |
| |
| } |
| |
| if (IntSource.word & INT_AC0_DLY) { |
| |
| /* |
| if (IntSource.word & 0x2) { |
| u32 reg; |
| RTMP_IO_READ32(pAd, DELAY_INT_CFG, ®); |
| printk("IntSource.word = %08x, DELAY_REG = %08x\n", IntSource.word, reg); |
| } |
| */ |
| pAd->int_pending |= INT_AC0_DLY; |
| |
| if ((pAd->int_disable_mask & INT_AC0_DLY) == 0) { |
| /* mask TxDataInt */ |
| rt2860_int_disable(pAd, INT_AC0_DLY); |
| tasklet_hi_schedule(&pObj->ac0_dma_done_task); |
| } |
| |
| } |
| |
| if (IntSource.word & PreTBTTInt) { |
| RTMPHandlePreTBTTInterrupt(pAd); |
| } |
| |
| if (IntSource.word & TBTTInt) { |
| RTMPHandleTBTTInterrupt(pAd); |
| } |
| |
| { |
| if (IntSource.word & AutoWakeupInt) |
| RTMPHandleTwakeupInterrupt(pAd); |
| } |
| |
| return IRQ_HANDLED; |
| } |
| |
| /* |
| * invaild or writeback cache |
| * and convert virtual address to physical address |
| */ |
| dma_addr_t linux_pci_map_single(struct rt_rtmp_adapter *pAd, void *ptr, |
| size_t size, int sd_idx, int direction) |
| { |
| struct os_cookie *pObj; |
| |
| /* |
| ------ Porting Information ------ |
| > For Tx Alloc: |
| mgmt packets => sd_idx = 0 |
| SwIdx: pAd->MgmtRing.TxCpuIdx |
| pTxD : pAd->MgmtRing.Cell[SwIdx].AllocVa; |
| |
| data packets => sd_idx = 1 |
| TxIdx : pAd->TxRing[pTxBlk->QueIdx].TxCpuIdx |
| QueIdx: pTxBlk->QueIdx |
| pTxD : pAd->TxRing[pTxBlk->QueIdx].Cell[TxIdx].AllocVa; |
| |
| > For Rx Alloc: |
| sd_idx = -1 |
| */ |
| |
| pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| if (sd_idx == 1) { |
| struct rt_tx_blk *pTxBlk; |
| pTxBlk = (struct rt_tx_blk *)ptr; |
| return pci_map_single(pObj->pci_dev, pTxBlk->pSrcBufData, |
| pTxBlk->SrcBufLen, direction); |
| } else { |
| return pci_map_single(pObj->pci_dev, ptr, size, direction); |
| } |
| |
| } |
| |
| void linux_pci_unmap_single(struct rt_rtmp_adapter *pAd, dma_addr_t dma_addr, |
| size_t size, int direction) |
| { |
| struct os_cookie *pObj; |
| |
| pObj = (struct os_cookie *)pAd->OS_Cookie; |
| |
| pci_unmap_single(pObj->pci_dev, dma_addr, size, direction); |
| |
| } |