/** * mu3d_hal_resume_qmu - resume qmu function * @args - arg1: ep number, arg2: dir */ void mu3d_hal_resume_qmu(DEV_INT32 q_num, USB_DIR dir) { if (dir == USB_TX) { /* qmu_printk(K_DEBUG, "%s EP%d CSR=%x, CPR=%x\n", __func__, q_num, os_readl(USB_QMU_TQCSR(q_num)), os_readl(USB_QMU_TQCPR(q_num))); */ os_writel(USB_QMU_TQCSR(q_num), QMU_Q_RESUME); if (!os_readl(USB_QMU_TQCSR(q_num))) { qmu_printk(K_WARNIN, "[ERROR]" "%s TQCSR[%d]=%x\n", __func__, q_num, os_readl(USB_QMU_TQCSR(q_num))); os_writel(USB_QMU_TQCSR(q_num), QMU_Q_RESUME); qmu_printk(K_WARNIN, "[ERROR]" "%s TQCSR[%d]=%x\n", __func__, q_num, os_readl(USB_QMU_TQCSR(q_num))); } } else if (dir == USB_RX) { os_writel(USB_QMU_RQCSR(q_num), QMU_Q_RESUME); if (!os_readl(USB_QMU_RQCSR(q_num))) { qmu_printk(K_WARNIN, "[ERROR]" "%s RQCSR[%d]=%x\n", __func__, q_num, os_readl(USB_QMU_RQCSR(q_num))); os_writel(USB_QMU_RQCSR(q_num), QMU_Q_RESUME); qmu_printk(K_WARNIN, "[ERROR]" "%s RQCSR[%d]=%x\n", __func__, q_num, os_readl(USB_QMU_RQCSR(q_num))); } } else { qmu_printk(K_ERR, "%s wrong direction!!!\n", __func__); BUG_ON(1); } }
/** * init_gpd_list - initialize gpd management list * @args - arg1: dir, arg2: ep number, arg3: gpd virtual addr, arg4: gpd ioremap addr, arg5: gpd number */ void init_gpd_list(USB_DIR dir, int num, PGPD ptr, PGPD io_ptr, DEV_UINT32 size) { if (dir == USB_RX) { Rx_gpd_List[num].pStart = ptr; Rx_gpd_List[num].pEnd = (PGPD) ((DEV_UINT8 *) (ptr + size) + AT_GPD_EXT_LEN * size); Rx_gpd_Offset[num] = (DEV_UINT32) ptr - (DEV_UINT32) io_ptr; ptr++; Rx_gpd_List[num].pNext = (PGPD) ((DEV_UINT8 *) ptr + AT_GPD_EXT_LEN); qmu_printk(K_INFO, "Rx_gpd_List[%d].pStart=%p, pNext=%p, pEnd=%p\n", num, Rx_gpd_List[num].pStart, Rx_gpd_List[num].pNext, Rx_gpd_List[num].pEnd); qmu_printk(K_INFO, "Rx_gpd_Offset[%d]=0x%08X\n", num, Rx_gpd_Offset[num]); qmu_printk(K_INFO, "virtual start=%p, end=%p\n", ptr, ptr + size); qmu_printk(K_INFO, "dma addr start=%p, end=%p\n", io_ptr, io_ptr + size); qmu_printk(K_INFO, "dma addr start=%p, end=%p\n", (void *)virt_to_phys(ptr), (void *)virt_to_phys(ptr + size)); } else { Tx_gpd_List[num].pStart = ptr; Tx_gpd_List[num].pEnd = (PGPD) ((DEV_UINT8 *) (ptr + size) + AT_GPD_EXT_LEN * size); Tx_gpd_Offset[num] = (DEV_UINT32) ptr - (DEV_UINT32) io_ptr; ptr++; Tx_gpd_List[num].pNext = (PGPD) ((DEV_UINT8 *) ptr + AT_GPD_EXT_LEN); qmu_printk(K_INFO, "Tx_gpd_List[%d].pStart=%p, pNext=%p, pEnd=%p\n", num, Tx_gpd_List[num].pStart, Tx_gpd_List[num].pNext, Tx_gpd_List[num].pEnd); qmu_printk(K_INFO, "Tx_gpd_Offset[%d]=0x%08X\n", num, Tx_gpd_Offset[num]); qmu_printk(K_INFO, "virtual start=%p, end=%p\n", ptr, ptr + size); qmu_printk(K_INFO, "dma addr start=%p, end=%p\n", io_ptr, io_ptr + size); qmu_printk(K_INFO, "dma addr start=%p, end=%p\n", (void *)virt_to_phys(ptr), (void *)virt_to_phys(ptr + size)); } }
/** * mu3d_hal_alloc_qmu_mem - allocate gpd and bd memory for all ep * */ void mu3d_hal_alloc_qmu_mem(void) { DEV_UINT32 i, size; TGPD *ptr, *io_ptr; for (i = 1; i <= MAX_QMU_EP; i++) { /* Allocate Rx GPD */ size = (sizeof(TGPD) + AT_GPD_EXT_LEN) * MAX_GPD_NUM; ptr = (TGPD *) kmalloc(size, GFP_KERNEL); memset(ptr, 0, size); io_ptr = (TGPD *) dma_map_single(NULL, ptr, size, DMA_BIDIRECTIONAL); init_gpd_list(USB_RX, i, ptr, io_ptr, MAX_GPD_NUM); Rx_gpd_end[i] = ptr; qmu_printk(K_INFO, "ALLOC RX GPD End [%d] Virtual Mem=%p, DMA addr=%p\n", i, Rx_gpd_end[i], io_ptr); TGPD_CLR_FLAGS_HWO(Rx_gpd_end[i]); Rx_gpd_head[i] = Rx_gpd_last[i] = Rx_gpd_end[i]; qmu_printk(K_INFO, "RQSAR[%d]=%p\n", i, (void *)virt_to_phys(Rx_gpd_end[i])); /* Allocate Tx GPD */ size = (sizeof(TGPD) + AT_GPD_EXT_LEN) * MAX_GPD_NUM; ptr = (TGPD *) kmalloc(size, GFP_KERNEL); memset(ptr, 0, size); io_ptr = (TGPD *) dma_map_single(NULL, ptr, size, DMA_BIDIRECTIONAL); init_gpd_list(USB_TX, i, ptr, io_ptr, MAX_GPD_NUM); Tx_gpd_end[i] = ptr; qmu_printk(K_INFO, "ALLOC TX GPD End [%d] Virtual Mem=%p, DMA addr=%p\n", i, Tx_gpd_end[i], io_ptr); TGPD_CLR_FLAGS_HWO(Tx_gpd_end[i]); Tx_gpd_head[i] = Tx_gpd_last[i] = Tx_gpd_end[i]; qmu_printk(K_INFO, "TQSAR[%d]=%p\n", i, (void *)virt_to_phys(Tx_gpd_end[i])); } }
/** * mu3d_hal_prepare_rx_gpd - prepare rx gpd/bd * @args - arg1: gpd address, arg2: data buffer address, arg3: data length, arg4: ep number, arg5: with bd or not, arg6: write hwo bit or not, arg7: write ioc bit or not */ TGPD *mu3d_hal_prepare_rx_gpd(TGPD *gpd, dma_addr_t pBuf, DEV_UINT32 data_len, DEV_UINT8 ep_num, DEV_UINT8 _is_bdp, DEV_UINT8 isHWO, DEV_UINT8 ioc, DEV_UINT8 bps, DEV_UINT32 cMaxPacketSize) { qmu_printk(K_DEBUG, "[RX]" "%s gpd=%p, epnum=%d, len=%d\n", __func__, gpd, ep_num, data_len); /*Set actual data point to "DATA Buffer" */ TGPD_SET_DATA(gpd, pBuf); /*Clear "BDP(Buffer Descriptor Present)" flag */ TGPD_CLR_FORMAT_BDP(gpd); /* * Set "Allow Data Buffer Length" = * 0 (If data length > GPD buffer length, use BDs), * data_len (If data length < GPD buffer length, only use GPD) */ TGPD_SET_DataBUF_LEN(gpd, data_len); /*Set "Transferred Data Length" = 0 */ TGPD_SET_BUF_LEN(gpd, 0); /*Default: bps=false */ TGPD_CLR_FORMAT_BPS(gpd); /*Default: ioc=true */ TGPD_SET_FORMAT_IOC(gpd); /*Get the next GPD */ Rx_gpd_end[ep_num] = get_gpd(USB_RX, ep_num); qmu_printk(K_DEBUG, "[RX]" "Rx_gpd_end[%d]=%p gpd=%p\n", ep_num, Rx_gpd_end[ep_num], gpd); /* BUG_ON(!check_next_gpd(gpd, Rx_gpd_end[ep_num])); */ /*Initialize the new GPD */ memset(Rx_gpd_end[ep_num], 0, sizeof(TGPD) + AT_GPD_EXT_LEN); /*Clear "HWO(Hardware Own)" flag */ TGPD_CLR_FLAGS_HWO(Rx_gpd_end[ep_num]); /*Set Next GDP pointer to the next GPD */ TGPD_SET_NEXT(gpd, virt_to_phys(Rx_gpd_end[ep_num])); /*Default: isHWO=true */ TGPD_SET_CHKSUM(gpd, CHECKSUM_LENGTH); /*Set GPD Checksum */ TGPD_SET_FLAGS_HWO(gpd); /*Set HWO flag */ /* os_printk(K_DEBUG,"Rx gpd info { HWO %d, Next_GPD %x ,DataBufferLength %d, DataBuffer %x, Recived Len %d, Endpoint %d, TGL %d, ZLP %d}\n", */ /* (DEV_UINT32)TGPD_GET_FLAG(gpd), (DEV_UINT32)TGPD_GET_NEXT(gpd), */ /* (DEV_UINT32)TGPD_GET_DataBUF_LEN(gpd), (DEV_UINT32)TGPD_GET_DATA(gpd), */ /* (DEV_UINT32)TGPD_GET_BUF_LEN(gpd), (DEV_UINT32)TGPD_GET_EPaddr(gpd), */ /* (DEV_UINT32)TGPD_GET_TGL(gpd), (DEV_UINT32)TGPD_GET_ZLP(gpd)); */ /*Flush the data of GPD stuct to device */ dma_sync_single_for_device(NULL, virt_to_phys(gpd), sizeof(TGPD) + AT_GPD_EXT_LEN, DMA_TO_DEVICE); return gpd; }
/** * mu3d_hal_prepare_tx_gpd - prepare tx gpd/bd * @args - arg1: gpd address, arg2: data buffer address, arg3: data length, arg4: ep number, arg5: with bd or not, arg6: write hwo bit or not, arg7: write ioc bit or not */ TGPD *mu3d_hal_prepare_tx_gpd(TGPD *gpd, dma_addr_t pBuf, DEV_UINT32 data_len, DEV_UINT8 ep_num, DEV_UINT8 _is_bdp, DEV_UINT8 isHWO, DEV_UINT8 ioc, DEV_UINT8 bps, DEV_UINT8 zlp) { qmu_printk(K_DEBUG, "[TX]" "%s gpd=%p, epnum=%d, len=%d, _is_bdp=%d size(TGPD)=%d\n", __func__, gpd, ep_num, data_len, _is_bdp, sizeof(TGPD)); /*Set actual data point to "DATA Buffer" */ TGPD_SET_DATA(gpd, pBuf); /*Clear "BDP(Buffer Descriptor Present)" flag */ TGPD_CLR_FORMAT_BDP(gpd); /* * "Data Buffer Length" = * 0 (If data length > GPD buffer length, use BDs), * data_len (If data length < GPD buffer length, only use GPD) */ TGPD_SET_BUF_LEN(gpd, data_len); /*"GPD extension length" = 0. Does not use GPD EXT!! */ TGPD_SET_EXT_LEN(gpd, 0); /*Default: zlp=false, except type=ISOC */ TGPD_CLR_FORMAT_ZLP(gpd); /*Default: bps=false */ TGPD_CLR_FORMAT_BPS(gpd); /*Default: ioc=true */ TGPD_SET_FORMAT_IOC(gpd); /*Get the next GPD */ Tx_gpd_end[ep_num] = get_gpd(USB_TX, ep_num); qmu_printk(K_DEBUG, "[TX]" "Tx_gpd_end[%d]=%p\n", ep_num, Tx_gpd_end[ep_num]); /*Initialize the new GPD */ memset(Tx_gpd_end[ep_num], 0, sizeof(TGPD) + AT_GPD_EXT_LEN); /*Clear "HWO(Hardware Own)" flag */ TGPD_CLR_FLAGS_HWO(Tx_gpd_end[ep_num]); /*Set "Next GDP pointer" as the next GPD */ TGPD_SET_NEXT(gpd, virt_to_phys(Tx_gpd_end[ep_num])); /*Default: isHWO=true */ TGPD_SET_CHKSUM(gpd, CHECKSUM_LENGTH); /*Set GPD Checksum */ TGPD_SET_FLAGS_HWO(gpd); /*Set HWO flag */ /*Flush the data of GPD stuct to device */ dma_sync_single_for_device(NULL, virt_to_phys(gpd), sizeof(TGPD) + AT_GPD_EXT_LEN, DMA_TO_DEVICE); return gpd; }
/** * mu3d_hal_prepare_tx_gpd - prepare tx gpd/bd * @args - arg1: gpd address, arg2: data buffer address, arg3: data length, arg4: ep number, arg5: with bd or not, arg6: write hwo bit or not, arg7: write ioc bit or not */ TGPD* _ex_mu3d_hal_prepare_tx_gpd(TGPD* gpd, dma_addr_t pBuf, DEV_UINT32 data_len, DEV_UINT8 ep_num, DEV_UINT8 _is_bdp, DEV_UINT8 isHWO, DEV_UINT8 ioc, DEV_UINT8 bps, DEV_UINT8 zlp) { qmu_printk(K_DEBUG, "[TX]""%s gpd=%p, epnum=%d, len=%d, zlp=%d, size(TGPD)=%lld, pBuf=%08lx\n", __func__, \ gpd, ep_num, data_len, zlp, (u64)sizeof(TGPD), (unsigned long)pBuf); /*Set actual data point to "DATA Buffer"*/ TGPD_SET_DATA(gpd, (unsigned long)pBuf); /*Clear "BDP(Buffer Descriptor Present)" flag*/ TGPD_CLR_FORMAT_BDP(gpd); /* * "Data Buffer Length" = * 0 (If data length > GPD buffer length, use BDs), * data_len (If data length < GPD buffer length, only use GPD) */ TGPD_SET_BUF_LEN(gpd, data_len); /*"GPD extension length" = 0. Does not use GPD EXT!!*/ TGPD_SET_EXT_LEN(gpd, 0); if (zlp) TGPD_SET_FORMAT_ZLP(gpd); else TGPD_CLR_FORMAT_ZLP(gpd); /*Default: bps=false*/ TGPD_CLR_FORMAT_BPS(gpd); /*Default: ioc=true*/ TGPD_SET_FORMAT_IOC(gpd); /*Get the next GPD*/ Tx_gpd_end[ep_num] = get_gpd( USB_TX, ep_num); qmu_printk(K_DEBUG, "[TX]""Tx_gpd_end[%d]=%p\n", ep_num, Tx_gpd_end[ep_num]); /*Initialize the new GPD*/ memset(Tx_gpd_end[ep_num], 0, sizeof(TGPD)+AT_GPD_EXT_LEN); /*Clear "HWO(Hardware Own)" flag*/ TGPD_CLR_FLAGS_HWO(Tx_gpd_end[ep_num]); /*Set "Next GDP pointer" as the next GPD*/ TGPD_SET_NEXT(gpd, (unsigned long)mu3d_hal_gpd_virt_to_phys(Tx_gpd_end[ep_num], USB_TX, ep_num)); /*Default: isHWO=true*/ TGPD_SET_CHKSUM( gpd, CHECKSUM_LENGTH); /*Set GPD Checksum*/ TGPD_SET_FLAGS_HWO(gpd); /*Set HWO flag*/ return gpd; }
void _ex_mu3d_hal_alloc_qmu_mem(struct device *dev) { DEV_UINT32 i, size; TGPD *ptr; dma_addr_t io_ptr; dma_addr_t dma_handle; /*TODO: dma_pool_alloc() is an alternative choice once the memory size is a concern */ for ( i=1; i<=MAX_QMU_EP; i++) { /* Allocate Rx GPD */ size = (sizeof(TGPD) + AT_GPD_EXT_LEN) * MAX_GPD_NUM; ptr = (TGPD*)dma_alloc_coherent(dev, size, &dma_handle, GFP_KERNEL); memset(ptr, 0 , size); Rx_gpd_ioptr[i] = io_ptr = dma_handle ; init_gpd_list( USB_RX, i, ptr, io_ptr, MAX_GPD_NUM); Rx_gpd_end[i] = ptr; qmu_printk(K_INFO, "ALLOC RX GPD End [%d] Virtual Mem=%p, DMA addr=%08llx\n", i, Rx_gpd_end[i], (unsigned long long) io_ptr); TGPD_CLR_FLAGS_HWO(Rx_gpd_end[i]); Rx_gpd_head[i] = Rx_gpd_last[i] = Rx_gpd_end[i]; qmu_printk(K_INFO, "RQSAR[%d]=%08llx\n", i, (unsigned long long) mu3d_hal_gpd_virt_to_phys(Rx_gpd_end[i], USB_RX, i)); /* Allocate Tx GPD */ size = (sizeof(TGPD) + AT_GPD_EXT_LEN) * MAX_GPD_NUM; ptr = (TGPD*)dma_alloc_coherent(dev, size, &dma_handle, GFP_KERNEL); memset(ptr, 0 , size); Tx_gpd_ioptr[i] = io_ptr = dma_handle ; init_gpd_list( USB_TX, i, ptr, io_ptr, MAX_GPD_NUM); Tx_gpd_end[i]= ptr; qmu_printk(K_INFO, "ALLOC TX GPD End [%d] Virtual Mem=%p, DMA addr=%08llx\n", i, Tx_gpd_end[i], (unsigned long long) io_ptr); TGPD_CLR_FLAGS_HWO(Tx_gpd_end[i]); Tx_gpd_head[i] = Tx_gpd_last[i] = Tx_gpd_end[i]; qmu_printk(K_INFO, "TQSAR[%d]=%08llx\n", i, (unsigned long long) mu3d_hal_gpd_virt_to_phys(Tx_gpd_end[i], USB_TX, i)); } }
/** * mu3d_hal_init_qmu - initialize qmu * */ void _ex_mu3d_hal_init_qmu(void) { DEV_UINT32 i; DEV_UINT32 QCR = 0; /* Initialize QMU Tx/Rx start address. */ for(i=1; i<=MAX_QMU_EP; i++){ qmu_printk(K_INFO, "==EP[%d]==Start addr RXQ=0x%08lx, TXQ=0x%08lx\n", i, \ (uintptr_t)mu3d_hal_gpd_virt_to_phys(Rx_gpd_head[i], USB_RX, i), \ (uintptr_t)mu3d_hal_gpd_virt_to_phys(Tx_gpd_head[i], USB_TX, i)); QCR|=QMU_RX_EN(i); QCR|=QMU_TX_EN(i); os_writel(USB_QMU_RQSAR(i), mu3d_hal_gpd_virt_to_phys(Rx_gpd_head[i],USB_RX,i)); os_writel(USB_QMU_TQSAR(i), mu3d_hal_gpd_virt_to_phys(Tx_gpd_head[i],USB_TX,i)); Tx_gpd_end[i] = Tx_gpd_last[i] = Tx_gpd_head[i]; Rx_gpd_end[i] = Rx_gpd_last[i] = Rx_gpd_head[i]; gpd_ptr_align(USB_TX, i, Tx_gpd_end[i]); gpd_ptr_align(USB_RX, i, Rx_gpd_end[i]); } /* Enable QMU interrupt. */ os_writel(U3D_QIESR1, TXQ_EMPTY_IESR | TXQ_CSERR_IESR | TXQ_LENERR_IESR | \ RXQ_EMPTY_IESR | RXQ_CSERR_IESR | RXQ_LENERR_IESR | \ RXQ_ZLPERR_IESR); os_writel(U3D_EPIESR, EP0ISR); }
/** * flush_qmu - stop qmu and align qmu start ptr t0 current ptr * @args - arg1: ep number, arg2: dir */ void mu3d_hal_flush_qmu(DEV_INT32 Q_num, USB_DIR dir) { TGPD *gpd_current; qmu_printk(K_CRIT, "%s flush QMU %s\n", __func__, ((dir == USB_TX) ? "TX" : "RX")); if (dir == USB_TX) { /*Stop QMU */ mu3d_hal_stop_qmu(Q_num, USB_TX); /*Get TX Queue Current Pointer Register */ gpd_current = (TGPD *) (os_readl(USB_QMU_TQCPR(Q_num))); /*If gpd_current = 0, it means QMU has not yet to execute GPD in QMU. */ if (!gpd_current) { /*Get TX Queue Starting Address Register */ gpd_current = (TGPD *) (os_readl(USB_QMU_TQSAR(Q_num))); } /*Switch physical to virtual address */ qmu_printk(K_CRIT, "gpd_current(P) %p\n", gpd_current); gpd_current = phys_to_virt((unsigned long)gpd_current); qmu_printk(K_CRIT, "gpd_current(V) %p\n", (void *)gpd_current); /*Reset the TX GPD list state */ Tx_gpd_end[Q_num] = Tx_gpd_last[Q_num] = gpd_current; gpd_ptr_align(dir, Q_num, Tx_gpd_end[Q_num]); free_gpd(dir, Q_num); /*FIXME: Do not know why... */ os_writel(USB_QMU_TQSAR(Q_num), virt_to_phys(Tx_gpd_last[Q_num])); qmu_printk(K_ERR, "USB_QMU_TQSAR %x\n", os_readl(USB_QMU_TQSAR(Q_num))); } else if (dir == USB_RX) { /*Stop QMU */ mu3d_hal_stop_qmu(Q_num, USB_RX); /*Get RX Queue Current Pointer Register */ gpd_current = (TGPD *) (os_readl(USB_QMU_RQCPR(Q_num))); if (!gpd_current) { /*Get RX Queue Starting Address Register */ gpd_current = (TGPD *) (os_readl(USB_QMU_RQSAR(Q_num))); } /*Switch physical to virtual address */ qmu_printk(K_CRIT, "gpd_current(P) %p\n", gpd_current); gpd_current = phys_to_virt((unsigned long)gpd_current); qmu_printk(K_CRIT, "gpd_current(V) %p\n", (void *)gpd_current); /*Reset the RX GPD list state */ Rx_gpd_end[Q_num] = Rx_gpd_last[Q_num] = gpd_current; gpd_ptr_align(dir, Q_num, Rx_gpd_end[Q_num]); free_gpd(dir, Q_num); /*FIXME: Do not know why... */ os_writel(USB_QMU_RQSAR(Q_num), virt_to_phys(Rx_gpd_end[Q_num])); qmu_printk(K_ERR, "USB_QMU_RQSAR %x\n", os_readl(USB_QMU_RQSAR(Q_num))); } }
static inline int check_next_gpd(TGPD *gpd, TGPD *next_gpd) { if (((u32) next_gpd - (u32) gpd) == 0x40) return 1; else if (((u32) gpd - (u32) next_gpd) == 0x7c0) return 1; else { qmu_printk(K_ERR, "[RX]" "%p <-> %p\n", gpd, next_gpd); return 0; } }
void _ex_mu3d_hal_free_qmu_mem(struct device *dev) { DEV_UINT32 i ; DEV_UINT32 size = (sizeof(TGPD) + AT_GPD_EXT_LEN) * MAX_GPD_NUM; qmu_printk(K_INFO, "_ex_mu3d_hal_free_qmu_mem +\n"); /*TODO:dma_free_coherent() is needed if _ex_mu3d_hal_alloc_qmu_mem() would be called more than once */ for ( i=1; i<=MAX_QMU_EP; i++) { #if 0 kfree(Rx_gpd_head[i]) ; kfree(Tx_gpd_head[i]) ; #else dma_free_coherent(dev, size, Rx_gpd_head[i], Rx_gpd_ioptr[i]) ; dma_free_coherent(dev, size, Tx_gpd_head[i], Tx_gpd_ioptr[i]) ; #endif } qmu_printk(K_INFO, "_ex_mu3d_hal_free_qmu_mem -\n"); }
/** * mu3d_hal_stop_qmu - stop qmu function (after qmu stop, fifo should be flushed) * @args - arg1: ep number, arg2: dir */ void mu3d_hal_stop_qmu(DEV_INT32 q_num, USB_DIR dir) { if (dir == USB_TX) { if (!(os_readl(USB_QMU_TQCSR(q_num)) & (QMU_Q_ACTIVE))) { qmu_printk(K_DEBUG, "Tx%d inActive Now!\n", q_num); return; } os_writel(USB_QMU_TQCSR(q_num), QMU_Q_STOP); while ((os_readl(USB_QMU_TQCSR(q_num)) & (QMU_Q_ACTIVE))); qmu_printk(K_CRIT, "Tx%d stop Now!\n", q_num); } else if (dir == USB_RX) { if (!(os_readl(USB_QMU_RQCSR(q_num)) & QMU_Q_ACTIVE)) { qmu_printk(K_DEBUG, "Rx%d inActive Now!\n", q_num); return; } os_writel(USB_QMU_RQCSR(q_num), QMU_Q_STOP); while ((os_readl(USB_QMU_RQCSR(q_num)) & (QMU_Q_ACTIVE))); qmu_printk(K_CRIT, "Rx%d stop now!\n", q_num); } }
/** * init_gpd_list - initialize gpd management list * @args - arg1: dir, arg2: ep number, arg3: gpd virtual addr, arg4: gpd ioremap addr, arg5: gpd number */ void init_gpd_list(USB_DIR dir, int num, PGPD ptr, dma_addr_t io_ptr, DEV_UINT32 size) { if (dir == USB_RX) { Rx_gpd_List[num].pStart = ptr; Rx_gpd_List[num].pEnd = (PGPD)((DEV_UINT8*)(ptr + size) + AT_GPD_EXT_LEN*size); rx_gpd_map[num].p_desc = (void *)ptr; rx_gpd_map[num].p_desc_dma = io_ptr; ptr++; Rx_gpd_List[num].pNext = (PGPD)((DEV_UINT8*)ptr + AT_GPD_EXT_LEN); qmu_printk(K_INFO, "Rx_gpd_List[%d].pStart=%p, pNext=%p, pEnd=%p\n", \ num, Rx_gpd_List[num].pStart, Rx_gpd_List[num].pNext, Rx_gpd_List[num].pEnd); qmu_printk(K_INFO, "rx_gpd_map[%d] vir=%p dma=%08llx\n", num, rx_gpd_map[num].p_desc, (unsigned long long)rx_gpd_map[num].p_desc_dma); qmu_printk(K_INFO, "vir=%p, dma=%08llx\n", ptr, (unsigned long long)io_ptr); } else { Tx_gpd_List[num].pStart = ptr; Tx_gpd_List[num].pEnd = (PGPD)((DEV_UINT8*)(ptr + size) + AT_GPD_EXT_LEN*size); tx_gpd_map[num].p_desc = (void *)ptr; tx_gpd_map[num].p_desc_dma = io_ptr; ptr++; Tx_gpd_List[num].pNext = (PGPD)((DEV_UINT8*)ptr + AT_GPD_EXT_LEN); qmu_printk(K_INFO, "Tx_gpd_List[%d].pStart=%p, pNext=%p, pEnd=%p\n", num, Tx_gpd_List[num].pStart, Tx_gpd_List[num].pNext, Tx_gpd_List[num].pEnd); qmu_printk(K_INFO, "tx_gpd_map[%d] vir=%p dma=%08llx\n", num, tx_gpd_map[num].p_desc, (unsigned long long)tx_gpd_map[num].p_desc_dma); qmu_printk(K_INFO, "vir=%p, dma=%08llx\n", ptr, (unsigned long long)io_ptr); } }
/** * mu3d_hal_stop_qmu - stop qmu function (after qmu stop, fifo should be flushed) * @args - arg1: ep number, arg2: dir */ void mu3d_hal_stop_qmu(DEV_INT32 q_num, USB_DIR dir) { if (dir == USB_TX) { if(!(os_readl(USB_QMU_TQCSR(q_num)) & (QMU_Q_ACTIVE))){ qmu_printk(K_CRIT, "Tx%d inActive Now!\n", q_num); return; } os_writel(USB_QMU_TQCSR(q_num), QMU_Q_STOP); mb(); if(wait_for_value(USB_QMU_TQCSR(q_num), QMU_Q_ACTIVE, 0, 10, 100) == RET_SUCCESS) qmu_printk(K_CRIT, "Tx%d stop Now! CSR=0x%x\n", q_num, os_readl(USB_QMU_TQCSR(q_num))); else { qmu_printk(K_CRIT, "Tx%d UNSTOPABLE!! CSR=0x%x\n", q_num, os_readl(USB_QMU_TQCSR(q_num))); WARN_ON(1); } } else if(dir == USB_RX) { if(!(os_readl(USB_QMU_RQCSR(q_num)) & QMU_Q_ACTIVE)){ qmu_printk(K_CRIT, "Rx%d inActive Now!\n", q_num); return; } os_writel(USB_QMU_RQCSR(q_num), QMU_Q_STOP); mb(); if(wait_for_value(USB_QMU_RQCSR(q_num), QMU_Q_ACTIVE, 0, 10, 100) == RET_SUCCESS) qmu_printk(K_CRIT, "Rx%d stop Now! CSR=0x%x\n", q_num, os_readl(USB_QMU_RQCSR(q_num))); else { qmu_printk(K_CRIT, "Rx%d UNSTOPABLE!! CSR=0x%x\n", q_num, os_readl(USB_QMU_RQCSR(q_num))); WARN_ON(1); } } }
/* When receiving RXQ done interrupt, qmu_interrupt calls this function. 1. Traverse GPD/BD data structures to count actual transferred length. 2. Set the done flag to notify rxstate_qmu() to report status to upper gadget driver. ported from proc_qmu_rx() from test driver. caller:qmu_interrupt after getting QMU done interrupt and TX is raised */ void qmu_done_rx(struct musb *musb, u8 ep_num, unsigned long flags) { TGPD *gpd = Rx_gpd_last[ep_num]; TGPD *gpd_current = (TGPD *) (os_readl(USB_QMU_RQCPR(ep_num))); struct musb_ep *musb_ep = &musb->endpoints[ep_num].ep_out; struct usb_request *request = NULL; struct musb_request *req; /* trying to give_back the request to gadget driver. */ req = next_request(musb_ep); if (!req) { qmu_printk(K_ERR, "[RXD]" "%s Cannot get next request of %d, " "but QMU has done.\n", __func__, ep_num); return; } else { request = &req->request; } /*Transfer PHY addr got from QMU register to VIR addr */ gpd_current = phys_to_virt((unsigned long)gpd_current); qmu_printk(K_DEBUG, "[RXD]" "%s EP%d, Last=%p, Current=%p, End=%p\n", __func__, ep_num, gpd, gpd_current, Rx_gpd_end[ep_num]); /*gpd_current should at least point to the next GPD to the previous last one. */ if (gpd == gpd_current) { qmu_printk(K_ERR, "[RXD][ERROR]" "%s gpd(%p) == gpd_current(%p)\n", __func__, gpd, gpd_current); qmu_printk(K_ERR, "[RXD][ERROR]" "EP%d RQCSR=%x, RQSAR=%x, RQCPR=%x, RQLDPR=%x\n", ep_num, os_readl(USB_QMU_RQCSR(ep_num)), os_readl(USB_QMU_RQSAR(ep_num)), os_readl(USB_QMU_RQCPR(ep_num)), os_readl(USB_QMU_RQLDPR(ep_num))); qmu_printk(K_ERR, "[RXD][ERROR]" "QCR0=%x, QCR1=%x, QCR2=%x, QCR3=%x, " "QGCSR=%x\n", os_readl(U3D_QCR0), os_readl(U3D_QCR1), os_readl(U3D_QCR2), os_readl(U3D_QCR3), os_readl(U3D_QGCSR)); qmu_printk(K_INFO, "[RXD][ERROR]" "HWO=%d, Next_GPD=%x ,DataBufLen=%d, " "DataBuf=%x, RecvLen=%d, Endpoint=%d\n", (DEV_UINT32) TGPD_GET_FLAG(gpd), (DEV_UINT32) TGPD_GET_NEXT(gpd), (DEV_UINT32) TGPD_GET_DataBUF_LEN(gpd), (DEV_UINT32) TGPD_GET_DATA(gpd), (DEV_UINT32) TGPD_GET_BUF_LEN(gpd), (DEV_UINT32) TGPD_GET_EPaddr(gpd)); return; } spin_unlock_irqrestore(&musb->lock, flags); /* invalidate GPD data in CPU */ dma_sync_single_for_cpu(musb->controller, virt_to_phys(gpd), sizeof(TGPD), DMA_FROM_DEVICE); spin_lock_irqsave(&musb->lock, flags); if (!gpd || !gpd_current) { qmu_printk(K_ERR, "[RXD][ERROR]" "%s EP%d, gpd=%p, gpd_current=%p, ishwo=%d, \ rx_gpd_last=%p, RQCPR=0x%x\n", __func__, ep_num, gpd, gpd_current, ((gpd == NULL) ? 999 : TGPD_IS_FLAGS_HWO(gpd)), Rx_gpd_last[ep_num], os_readl(USB_QMU_RQCPR(ep_num))); return; }
/* When receiving RXQ done interrupt, qmu_interrupt calls this function. 1. Traverse GPD/BD data structures to count actual transferred length. 2. Set the done flag to notify rxstate_qmu() to report status to upper gadget driver. ported from proc_qmu_rx() from test driver. caller:qmu_interrupt after getting QMU done interrupt and TX is raised */ void qmu_done_rx(struct musb *musb, u8 ep_num, unsigned long flags) { TGPD* gpd = Rx_gpd_last[ep_num]; TGPD* gpd_current = (TGPD*)(uintptr_t)(os_readl(USB_QMU_RQCPR(ep_num))); //QMU GPD address --> CPU DMA address struct musb_ep *musb_ep = &musb->endpoints[ep_num].ep_out; struct usb_request *request = NULL; struct musb_request *req; //trying to give_back the request to gadget driver. req = next_request(musb_ep); if (!req) { qmu_printk(K_ERR, "[RXD]""%s Cannot get next request of %d, " "but QMU has done.\n", __func__, ep_num); return; } else { request = &req->request; } /*Transfer PHY addr got from QMU register to VIR addr*/ gpd_current = gpd_phys_to_virt(gpd_current, USB_RX, ep_num); qmu_printk(K_DEBUG, "[RXD]""%s EP%d, Last=%p, Current=%p, End=%p\n", __func__, ep_num, gpd, gpd_current, Rx_gpd_end[ep_num]); /*gpd_current should at least point to the next GPD to the previous last one.*/ if (gpd == gpd_current) { qmu_printk(K_ERR, "[RXD][ERROR]""%s gpd(%p) == gpd_current(%p)\n", __func__, gpd, \ gpd_current); qmu_printk(K_ERR, "[RXD][ERROR]""EP%d RQCSR=%x, RQSAR=%x, RQCPR=%x, RQLDPR=%x\n", ep_num, os_readl(USB_QMU_RQCSR(ep_num)), os_readl(USB_QMU_RQSAR(ep_num)), os_readl(USB_QMU_RQCPR(ep_num)), os_readl(USB_QMU_RQLDPR(ep_num))); qmu_printk(K_ERR, "[RXD][ERROR]""QCR0=%x, QCR1=%x, QCR2=%x, QCR3=%x, " "QGCSR=%x\n", os_readl(U3D_QCR0), os_readl(U3D_QCR1), os_readl(U3D_QCR2), \ os_readl(U3D_QCR3), os_readl(U3D_QGCSR)); qmu_printk(K_INFO,"[RXD][ERROR]""HWO=%d, Next_GPD=%lx ,DataBufLen=%d, " "DataBuf=%lx, RecvLen=%d, Endpoint=%d\n", (u32)TGPD_GET_FLAG(gpd), (uintptr_t)TGPD_GET_NEXT(gpd), (u32)TGPD_GET_DataBUF_LEN(gpd), (uintptr_t)TGPD_GET_DATA(gpd), (u32)TGPD_GET_BUF_LEN(gpd), (u32)TGPD_GET_EPaddr(gpd)); return; } if(!gpd || !gpd_current) { qmu_printk(K_ERR, "[RXD][ERROR]""%s EP%d, gpd=%p, gpd_current=%p, ishwo=%d, \ rx_gpd_last=%p, RQCPR=0x%x\n", __func__, ep_num, gpd, gpd_current, ((gpd==NULL) ? 999 : TGPD_IS_FLAGS_HWO(gpd)), Rx_gpd_last[ep_num], os_readl(USB_QMU_RQCPR(ep_num))); return; }
/** * mu3d_hal_restart_qmu - clear toggle(or sequence) number and start qmu * @args - arg1: ep number, arg2: dir */ void mu3d_hal_restart_qmu(DEV_INT32 q_num, USB_DIR dir) { DEV_UINT32 ep_rst; qmu_printk(K_CRIT, "%s : Reset %s-EP[%d]\n", __func__, ((dir==USB_TX)?"TX":"RX"), q_num); if (dir == USB_TX) { ep_rst = BIT16<<q_num; os_writel(U3D_EP_RST, ep_rst); os_ms_delay(1); os_writel(U3D_EP_RST, 0); } else { ep_rst = 1<<q_num; os_writel(U3D_EP_RST, ep_rst); os_ms_delay(1); os_writel(U3D_EP_RST, 0); } mu3d_hal_start_qmu(q_num, dir); }
/* 1. Find the last gpd HW has executed and update Tx_gpd_last[] 2. Set the flag for txstate to know that TX has been completed ported from proc_qmu_tx() from test driver. caller:qmu_interrupt after getting QMU done interrupt and TX is raised */ void qmu_done_tx(struct musb *musb, u8 ep_num, unsigned long flags) { TGPD *gpd = Tx_gpd_last[ep_num]; TGPD *gpd_current = (TGPD *) (os_readl(USB_QMU_TQCPR(ep_num))); struct musb_ep *musb_ep = &musb->endpoints[ep_num].ep_in; struct usb_request *request = NULL; struct musb_request *req; /* trying to give_back the request to gadget driver. */ req = next_request(musb_ep); if (!req) { qmu_printk(K_INFO, "[TXD]" "%s Cannot get next request of %d, " "but QMU has done.\n", __func__, ep_num); return; } else { request = &req->request; } /*Transfer PHY addr got from QMU register to VIR addr */ gpd_current = phys_to_virt((unsigned long)gpd_current); /* gpd or Last gdp_current | | |-> GPD1 --> GPD2 --> GPD3 --> GPD4 --> GPD5 -| |----------------------------------------------| */ qmu_printk(K_DEBUG, "[TXD]" "%s EP%d, Last=%p, Current=%p, End=%p\n", __func__, ep_num, gpd, gpd_current, Tx_gpd_end[ep_num]); /*gpd_current should at least point to the next GPD to the previous last one. */ if (gpd == gpd_current) { qmu_printk(K_ERR, "[TXD][ERROR]" "%s gpd(%p) == gpd_current(%p)\n", __func__, gpd, gpd_current); return; } spin_unlock_irqrestore(&musb->lock, flags); /* flush data from device to CPU */ dma_sync_single_for_cpu(musb->controller, virt_to_phys(gpd), sizeof(TGPD), DMA_FROM_DEVICE); spin_lock_irqsave(&musb->lock, flags); if (TGPD_IS_FLAGS_HWO(gpd)) { qmu_printk(K_DEBUG, "[TXD]" "%s HWO=1, CPR=%x\n", __func__, os_readl(USB_QMU_TQCPR(ep_num))); BUG_ON(1); } while (gpd != gpd_current && !TGPD_IS_FLAGS_HWO(gpd)) { qmu_printk(K_DEBUG, "[TXD]" "gpd=%p ->HWO=%d, BPD=%d, Next_GPD=%x, DataBuffer=%x, " "BufferLen=%d request=%p\n", gpd, (u32) TGPD_GET_FLAG(gpd), (u32) TGPD_GET_FORMAT(gpd), (u32) TGPD_GET_NEXT(gpd), (u32) TGPD_GET_DATA(gpd), (u32) TGPD_GET_BUF_LEN(gpd), req); if (!TGPD_GET_NEXT(gpd)) { qmu_printk(K_ERR, "[TXD][ERROR]" "Next GPD is null!!\n"); /* BUG_ON(1); */ break; } gpd = TGPD_GET_NEXT(gpd); spin_unlock_irqrestore(&musb->lock, flags); /*flush data from device to CPU */ dma_sync_single_for_cpu(musb->controller, (dma_addr_t) gpd, sizeof(TGPD), DMA_FROM_DEVICE); spin_lock_irqsave(&musb->lock, flags); gpd = phys_to_virt((unsigned long)gpd); Tx_gpd_last[ep_num] = gpd; musb_g_giveback(musb_ep, request, 0); req = next_request(musb_ep); request = &req->request; } if (gpd != gpd_current && TGPD_IS_FLAGS_HWO(gpd)) { qmu_printk(K_ERR, "[TXD][ERROR]" "EP%d TQCSR=%x, TQSAR=%x, TQCPR=%x\n", ep_num, os_readl(USB_QMU_TQCSR(ep_num)), os_readl(USB_QMU_TQSAR(ep_num)), os_readl(USB_QMU_TQCPR(ep_num))); qmu_printk(K_ERR, "[TXD][ERROR]" "QCR0=%x, QCR1=%x, QCR2=%x, QCR3=%x, " "QGCSR=%x\n", os_readl(U3D_QCR0), os_readl(U3D_QCR1), os_readl(U3D_QCR2), os_readl(U3D_QCR3), os_readl(U3D_QGCSR)); qmu_printk(K_ERR, "[TXD][ERROR]" "HWO=%d, BPD=%d, Next_GPD=%x, DataBuffer=%x, " "BufferLen=%d, Endpoint=%d\n", (DEV_UINT32) TGPD_GET_FLAG(gpd), (DEV_UINT32) TGPD_GET_FORMAT(gpd), (DEV_UINT32) TGPD_GET_NEXT(gpd), (DEV_UINT32) TGPD_GET_DATA(gpd), (DEV_UINT32) TGPD_GET_BUF_LEN(gpd), (DEV_UINT32) TGPD_GET_EPaddr(gpd)); } qmu_printk(K_DEBUG, "[TXD]" "%s EP%d, Last=%p, End=%p, complete\n", __func__, ep_num, Tx_gpd_last[ep_num], Tx_gpd_end[ep_num]); if (req != NULL) { if (request->length == 0) { qmu_printk(K_DEBUG, "[TXD]" "==Send ZLP== %p\n", req); while (!(USB_ReadCsr32(U3D_TX1CSR0, req->epnum) & TX_FIFOFULL)) { USB_WriteCsr32(U3D_TX1CSR0, req->epnum, USB_ReadCsr32(U3D_TX1CSR0, req->epnum) | TX_TXPKTRDY); break; } qmu_printk(K_DEBUG, "[TXD]" "Giveback ZLP of EP%d, actual:%d, length:%d %p\n", req->epnum, request->actual, request->length, request); musb_g_giveback(musb_ep, request, 0); } } }
/* 1. Find the last gpd HW has executed and update Tx_gpd_last[] 2. Set the flag for txstate to know that TX has been completed ported from proc_qmu_tx() from test driver. caller:qmu_interrupt after getting QMU done interrupt and TX is raised */ void qmu_done_tx(struct musb *musb, u8 ep_num, unsigned long flags) { TGPD* gpd = Tx_gpd_last[ep_num]; TGPD* gpd_current = (TGPD*)(uintptr_t)(os_readl(USB_QMU_TQCPR(ep_num))); //QMU GPD address --> CPU DMA address struct musb_ep *musb_ep = &musb->endpoints[ep_num].ep_in; struct usb_request *request = NULL; struct musb_request *req = NULL; /*Transfer PHY addr got from QMU register to VIR addr*/ gpd_current = gpd_phys_to_virt((void *)gpd_current, USB_TX, ep_num); /* gpd or Last gdp_current | | |-> GPD1 --> GPD2 --> GPD3 --> GPD4 --> GPD5 -| |----------------------------------------------| */ qmu_printk(K_DEBUG, "[TXD]""%s EP%d, Last=%p, Current=%p, End=%p\n", __func__, ep_num, gpd, gpd_current, Tx_gpd_end[ep_num]); /*gpd_current should at least point to the next GPD to the previous last one.*/ if (gpd == gpd_current) { qmu_printk(K_ERR, "[TXD]""%s gpd(%p) == gpd_current(%p)\n", __func__, gpd, \ gpd_current); return; } if(TGPD_IS_FLAGS_HWO(gpd)) { qmu_printk(K_DEBUG, "[TXD]""%s HWO=1, CPR=%x\n", __func__, os_readl(USB_QMU_TQCPR(ep_num))); BUG_ON(1); } while (gpd!=gpd_current && !TGPD_IS_FLAGS_HWO(gpd)) { qmu_printk(K_DEBUG, "[TXD]""gpd=%p ->HWO=%d, BPD=%d, Next_GPD=%lx, DataBuffer=%lx, " "BufferLen=%d request=%p\n", gpd, (u32)TGPD_GET_FLAG(gpd), (u32)TGPD_GET_FORMAT(gpd), \ (uintptr_t)TGPD_GET_NEXT(gpd), (uintptr_t)TGPD_GET_DATA(gpd), (u32)TGPD_GET_BUF_LEN(gpd), req); if(!TGPD_GET_NEXT(gpd)) { qmu_printk(K_ERR, "[TXD][ERROR]""Next GPD is null!!\n"); //BUG_ON(1); break; } gpd = TGPD_GET_NEXT(gpd); gpd = gpd_phys_to_virt(gpd, USB_TX, ep_num); /* trying to give_back the request to gadget driver. */ req = next_request(musb_ep); if (!req) { qmu_printk(K_INFO, "[TXD]""%s Cannot get next request of %d, " "but QMU has done.\n", __func__, ep_num); return; } else { request = &req->request; } Tx_gpd_last[ep_num] = gpd; musb_g_giveback(musb_ep, request, 0); req = next_request(musb_ep); if (req != NULL) { request = &req->request; } } if(gpd!=gpd_current && TGPD_IS_FLAGS_HWO(gpd)) { qmu_printk(K_ERR, "[TXD][ERROR]""EP%d TQCSR=%x, TQSAR=%x, TQCPR=%x\n", ep_num, os_readl(USB_QMU_TQCSR(ep_num)), os_readl(USB_QMU_TQSAR(ep_num)), os_readl(USB_QMU_TQCPR(ep_num))); qmu_printk(K_ERR, "[TXD][ERROR]""QCR0=%x, QCR1=%x, QCR2=%x, QCR3=%x, " "QGCSR=%x\n", os_readl(U3D_QCR0), os_readl(U3D_QCR1), os_readl(U3D_QCR2), \ os_readl(U3D_QCR3), os_readl(U3D_QGCSR)); qmu_printk(K_ERR, "[TXD][ERROR]""HWO=%d, BPD=%d, Next_GPD=%lx, DataBuffer=%lx, " "BufferLen=%d, Endpoint=%d\n", (u32)TGPD_GET_FLAG(gpd), \ (u32)TGPD_GET_FORMAT(gpd), (uintptr_t)TGPD_GET_NEXT(gpd), \ (uintptr_t)TGPD_GET_DATA(gpd), (u32)TGPD_GET_BUF_LEN(gpd), \ (u32)TGPD_GET_EPaddr(gpd)); } qmu_printk(K_DEBUG, "[TXD]""%s EP%d, Last=%p, End=%p, complete\n", __func__, ep_num, Tx_gpd_last[ep_num], Tx_gpd_end[ep_num]); if (req != NULL) { if (request->length == 0) { u32 val = 0; qmu_printk(K_DEBUG, "[TXD]""==Send ZLP== %p\n", req); if (wait_for_value_us(USB_END_OFFSET(req->epnum, U3D_TX1CSR0), TX_FIFOEMPTY, TX_FIFOEMPTY, 1, 10) == RET_SUCCESS) qmu_printk(K_DEBUG, "Tx[%d] 0x%x\n", req->epnum, USB_ReadCsr32(U3D_TX1CSR0, req->epnum)); else { qmu_printk(K_CRIT, "Tx[%d] NOT FIFOEMPTY 0x%x\n", req->epnum, USB_ReadCsr32(U3D_TX1CSR0, req->epnum)); return; } /*Disable Tx_DMAREQEN*/ val = USB_ReadCsr32(U3D_TX1CSR0, req->epnum) & ~TX_DMAREQEN; mb(); USB_WriteCsr32(U3D_TX1CSR0, req->epnum, val); val = USB_ReadCsr32(U3D_TX1CSR0, req->epnum) | TX_TXPKTRDY; mb(); USB_WriteCsr32(U3D_TX1CSR0, req->epnum, val); qmu_printk(K_DEBUG, "[TXD]""Giveback ZLP of EP%d, actual:%d, length:%d %p\n", req->epnum, request->actual, request->length, request); musb_g_giveback(musb_ep, request, 0); } } }
/** * flush_qmu - stop qmu and align qmu start ptr t0 current ptr * @args - arg1: ep number, arg2: dir */ void _ex_mu3d_hal_flush_qmu(DEV_INT32 Q_num, USB_DIR dir) { TGPD* gpd_current; qmu_printk(K_CRIT, "%s flush QMU %s-EP[%d]\n", __func__, ((dir==USB_TX)?"TX":"RX"), Q_num); if (dir == USB_TX) { /*Stop QMU*/ mu3d_hal_stop_qmu(Q_num, USB_TX); /*Get TX Queue Current Pointer Register*/ gpd_current = (TGPD*)(uintptr_t)(os_readl(USB_QMU_TQCPR(Q_num))); //QMU GPD address --> CPU DMA address /*If gpd_current = 0, it means QMU has not yet to execute GPD in QMU.*/ if(!gpd_current){ /*Get TX Queue Starting Address Register*/ gpd_current = (TGPD*)(uintptr_t)(os_readl(USB_QMU_TQSAR(Q_num))); //QMU GPD address --> CPU DMA address } /* * Even if the GPD pointer got from SAR is corrupted. We should use the head of GPD list. * We know that Tx_gpd_head[Q_num] is always correct. */ if(!gpd_current) { gpd_current = Tx_gpd_head[Q_num]; qmu_printk(K_CRIT, "gpd is null, so use the head of GPD list %p\n", gpd_current); } else { /*Switch physical to virtual address*/ qmu_printk(K_CRIT, "gpd_current(P) %p\n", gpd_current); gpd_current = gpd_phys_to_virt((void *)gpd_current,USB_TX, Q_num); qmu_printk(K_CRIT, "gpd_current(V) %p\n", (void *)gpd_current); } /*Reset the TX GPD list state*/ Tx_gpd_end[Q_num] = Tx_gpd_last[Q_num] = gpd_current; gpd_ptr_align(dir,Q_num,Tx_gpd_end[Q_num]); free_gpd(dir,Q_num); /*FIXME: Do not know why...*/ os_writel(USB_QMU_TQSAR(Q_num), mu3d_hal_gpd_virt_to_phys(Tx_gpd_last[Q_num], USB_TX, Q_num)); qmu_printk(K_ERR, "USB_QMU_TQSAR %x\n", os_readl(USB_QMU_TQSAR(Q_num))); } else if(dir == USB_RX) { /*Stop QMU*/ mu3d_hal_stop_qmu(Q_num, USB_RX); /*Get RX Queue Current Pointer Register*/ gpd_current = (TGPD*)(uintptr_t)(os_readl(USB_QMU_RQCPR(Q_num))); //QMU GPD address --> CPU DMA address if(!gpd_current){ /*Get RX Queue Starting Address Register*/ gpd_current = (TGPD*)(uintptr_t)(os_readl(USB_QMU_RQSAR(Q_num))); //QMU GPD address --> CPU DMA address } /* * Even if the GPD pointer got from SAR is corrupted. We should use the head of GPD list. * We know that Rx_gpd_head[Q_num] is always correct. */ if(!gpd_current) { gpd_current = Rx_gpd_head[Q_num]; qmu_printk(K_CRIT, "gpd is null, so use the head of GPD list %p\n", gpd_current); } else { /*Switch physical to virtual address*/ qmu_printk(K_CRIT, "gpd_current(P) %p\n", gpd_current); gpd_current = gpd_phys_to_virt((void *)gpd_current, USB_RX, Q_num); qmu_printk(K_CRIT, "gpd_current(V) %p\n", (void *)gpd_current); } /*Reset the RX GPD list state*/ Rx_gpd_end[Q_num] = Rx_gpd_last[Q_num] = gpd_current; gpd_ptr_align(dir,Q_num,Rx_gpd_end[Q_num]); free_gpd(dir,Q_num); /*FIXME: Do not know why...*/ os_writel(USB_QMU_RQSAR(Q_num), mu3d_hal_gpd_virt_to_phys(Rx_gpd_end[Q_num], USB_RX, Q_num)); qmu_printk(K_ERR,"USB_QMU_RQSAR %x\n", os_readl(USB_QMU_RQSAR(Q_num))); } }
/** * mu3d_hal_start_qmu - start qmu function (QMU flow : mu3d_hal_init_qmu ->mu3d_hal_start_qmu -> mu3d_hal_insert_transfer_gpd -> mu3d_hal_resume_qmu) * @args - arg1: ep number, arg2: dir */ void mu3d_hal_start_qmu(DEV_INT32 Q_num, USB_DIR dir) { DEV_UINT32 QCR; DEV_UINT32 txcsr; if (dir == USB_TX) { txcsr = USB_ReadCsr32(U3D_TX1CSR0, Q_num) & 0xFFFEFFFF; USB_WriteCsr32(U3D_TX1CSR0, Q_num, txcsr | TX_DMAREQEN); QCR = os_readl(U3D_QCR0); os_writel(U3D_QCR0, QCR | QMU_TX_CS_EN(Q_num)); #if (TXZLP == HW_MODE) QCR = os_readl(U3D_QCR1); os_writel(U3D_QCR1, QCR & ~QMU_TX_ZLP(Q_num)); QCR = os_readl(U3D_QCR2); os_writel(U3D_QCR2, QCR | QMU_TX_ZLP(Q_num)); #elif (TXZLP == GPD_MODE) QCR = os_readl(U3D_QCR1); os_writel(U3D_QCR1, QCR | QMU_TX_ZLP(Q_num)); #endif os_writel(U3D_QEMIESR, os_readl(U3D_QEMIESR) | QMU_TX_EMPTY(Q_num)); os_writel(U3D_TQERRIESR0, QMU_TX_LEN_ERR(Q_num) | QMU_TX_CS_ERR(Q_num)); qmu_printk(K_INFO, "USB_QMU_TQCSR:0x%08X\n", os_readl(USB_QMU_TQCSR(Q_num))); if (os_readl(USB_QMU_TQCSR(Q_num)) & QMU_Q_ACTIVE) { qmu_printk(K_INFO, "Tx %d Active Now!\n", Q_num); return; } os_writel(USB_QMU_TQCSR(Q_num), QMU_Q_START); qmu_printk(K_INFO, "USB_QMU_TQCSR:0x%08X\n", os_readl(USB_QMU_TQCSR(Q_num))); } else if (dir == USB_RX) { USB_WriteCsr32(U3D_RX1CSR0, Q_num, USB_ReadCsr32(U3D_RX1CSR0, Q_num) | (RX_DMAREQEN)); QCR = os_readl(U3D_QCR0); os_writel(U3D_QCR0, QCR | QMU_RX_CS_EN(Q_num)); #ifdef CFG_RX_ZLP_EN QCR = os_readl(U3D_QCR3); os_writel(U3D_QCR3, QCR | QMU_RX_ZLP(Q_num)); #else QCR = os_readl(U3D_QCR3); os_writel(U3D_QCR3, QCR & ~(QMU_RX_ZLP(Q_num))); #endif #ifdef CFG_RX_COZ_EN QCR = os_readl(U3D_QCR3); os_writel(U3D_QCR3, QCR | QMU_RX_COZ(Q_num)); #else QCR = os_readl(U3D_QCR3); os_writel(U3D_QCR3, QCR & ~(QMU_RX_COZ(Q_num))); #endif os_writel(U3D_QEMIESR, os_readl(U3D_QEMIESR) | QMU_RX_EMPTY(Q_num)); os_writel(U3D_RQERRIESR0, QMU_RX_LEN_ERR(Q_num) | QMU_RX_CS_ERR(Q_num)); os_writel(U3D_RQERRIESR1, QMU_RX_EP_ERR(Q_num) | QMU_RX_ZLP_ERR(Q_num)); qmu_printk(K_INFO, "USB_QMU_RQCSR:0x%08X\n", os_readl(USB_QMU_RQCSR(Q_num))); if (os_readl(USB_QMU_RQCSR(Q_num)) & QMU_Q_ACTIVE) { qmu_printk(K_INFO, "Rx %d Active Now!\n", Q_num); return; } os_writel(USB_QMU_RQCSR(Q_num), QMU_Q_START); qmu_printk(K_INFO, "USB_QMU_RQCSR:0x%08X\n", os_readl(USB_QMU_RQCSR(Q_num))); } #if (CHECKSUM_TYPE == CS_16B) os_writel(U3D_QCR0, os_readl(U3D_QCR0) | CS16B_EN); #else os_writel(U3D_QCR0, os_readl(U3D_QCR0) & ~CS16B_EN); #endif }