diff options
Diffstat (limited to 'drivers/staging/bcm/InterfaceTx.c')
| -rw-r--r-- | drivers/staging/bcm/InterfaceTx.c | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/drivers/staging/bcm/InterfaceTx.c b/drivers/staging/bcm/InterfaceTx.c deleted file mode 100644 index 9b3f64b821ed..000000000000 --- a/drivers/staging/bcm/InterfaceTx.c +++ /dev/null @@ -1,213 +0,0 @@ -#include "headers.h" - -static void prepare_low_power_mode(struct urb *urb, - struct bcm_interface_adapter *interface, - struct bcm_mini_adapter *ps_adapter, - struct bcm_mini_adapter *ad, - struct bcm_link_request *p_control_msg, - bool *b_power_down_msg) -{ - if (((p_control_msg->szData[0] == GO_TO_IDLE_MODE_PAYLOAD) && - (p_control_msg->szData[1] == TARGET_CAN_GO_TO_IDLE_MODE))) { - - *b_power_down_msg = TRUE; - /* - * This covers the bus err while Idle Request msg - * sent down. - */ - if (urb->status != STATUS_SUCCESS) { - ps_adapter->bPreparingForLowPowerMode = false; - BCM_DEBUG_PRINT(ad, DBG_TYPE_TX, NEXT_SEND, - DBG_LVL_ALL, - "Idle Mode Request msg failed to reach to Modem"); - /* Signalling the cntrl pkt path in Ioctl */ - wake_up(&ps_adapter->lowpower_mode_wait_queue); - StartInterruptUrb(interface); - return; - } - - if (ps_adapter->bDoSuspend == false) { - ps_adapter->IdleMode = TRUE; - /* since going in Idle mode completed hence making this var false */ - ps_adapter->bPreparingForLowPowerMode = false; - - BCM_DEBUG_PRINT(ad, DBG_TYPE_TX, NEXT_SEND, - DBG_LVL_ALL, - "Host Entered in Idle Mode State..."); - /* Signalling the cntrl pkt path in Ioctl*/ - wake_up(&ps_adapter->lowpower_mode_wait_queue); - } - - } else if ((p_control_msg->Leader.Status == LINK_UP_CONTROL_REQ) && - (p_control_msg->szData[0] == LINK_UP_ACK) && - (p_control_msg->szData[1] == LINK_SHUTDOWN_REQ_FROM_FIRMWARE) && - (p_control_msg->szData[2] == SHUTDOWN_ACK_FROM_DRIVER)) { - /* - * This covers the bus err while shutdown Request - * msg sent down. - */ - if (urb->status != STATUS_SUCCESS) { - ps_adapter->bPreparingForLowPowerMode = false; - BCM_DEBUG_PRINT(ad, DBG_TYPE_TX, NEXT_SEND, - DBG_LVL_ALL, - "Shutdown Request Msg failed to reach to Modem"); - /* Signalling the cntrl pkt path in Ioctl */ - wake_up(&ps_adapter->lowpower_mode_wait_queue); - StartInterruptUrb(interface); - return; - } - - *b_power_down_msg = TRUE; - if (ps_adapter->bDoSuspend == false) { - ps_adapter->bShutStatus = TRUE; - /* - * since going in shutdown mode completed hence - * making this var false - */ - ps_adapter->bPreparingForLowPowerMode = false; - BCM_DEBUG_PRINT(ad, DBG_TYPE_TX, NEXT_SEND, - DBG_LVL_ALL, - "Host Entered in shutdown Mode State..."); - /* Signalling the cntrl pkt path in Ioctl */ - wake_up(&ps_adapter->lowpower_mode_wait_queue); - } - } - - if (ps_adapter->bDoSuspend && *b_power_down_msg) { - /* issuing bus suspend request */ - BCM_DEBUG_PRINT(ad, DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, - "Issuing the Bus suspend request to USB stack"); - interface->bPreparingForBusSuspend = TRUE; - schedule_work(&interface->usbSuspendWork); - } -} - -/*this is transmit call-back(BULK OUT)*/ -static void write_bulk_callback(struct urb *urb/*, struct pt_regs *regs*/) -{ - struct bcm_usb_tcb *pTcb = (struct bcm_usb_tcb *)urb->context; - struct bcm_interface_adapter *psIntfAdapter = pTcb->psIntfAdapter; - struct bcm_link_request *pControlMsg = - (struct bcm_link_request *)urb->transfer_buffer; - struct bcm_mini_adapter *psAdapter = psIntfAdapter->psAdapter; - bool bpowerDownMsg = false; - struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev); - - if (unlikely(netif_msg_tx_done(Adapter))) - pr_info(PFX "%s: transmit status %d\n", Adapter->dev->name, - urb->status); - - if (urb->status != STATUS_SUCCESS) { - if (urb->status == -EPIPE) { - psIntfAdapter->psAdapter->bEndPointHalted = TRUE; - wake_up(&psIntfAdapter->psAdapter->tx_packet_wait_queue); - } else { - BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, NEXT_SEND, - DBG_LVL_ALL, - "Tx URB has got cancelled. status :%d", - urb->status); - } - } - - pTcb->bUsed = false; - atomic_dec(&psIntfAdapter->uNumTcbUsed); - - if (TRUE == psAdapter->bPreparingForLowPowerMode) { - prepare_low_power_mode(urb, psIntfAdapter, psAdapter, Adapter, - pControlMsg, &bpowerDownMsg); - } - - usb_free_coherent(urb->dev, urb->transfer_buffer_length, - urb->transfer_buffer, urb->transfer_dma); -} - - -static struct bcm_usb_tcb *GetBulkOutTcb(struct bcm_interface_adapter *psIntfAdapter) -{ - struct bcm_usb_tcb *pTcb = NULL; - UINT index = 0; - - if ((atomic_read(&psIntfAdapter->uNumTcbUsed) < MAXIMUM_USB_TCB) && - (psIntfAdapter->psAdapter->StopAllXaction == false)) { - index = atomic_read(&psIntfAdapter->uCurrTcb); - pTcb = &psIntfAdapter->asUsbTcb[index]; - pTcb->bUsed = TRUE; - pTcb->psIntfAdapter = psIntfAdapter; - BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_TX, - NEXT_SEND, DBG_LVL_ALL, - "Got Tx desc %d used %d", - index, - atomic_read(&psIntfAdapter->uNumTcbUsed)); - index = (index + 1) % MAXIMUM_USB_TCB; - atomic_set(&psIntfAdapter->uCurrTcb, index); - atomic_inc(&psIntfAdapter->uNumTcbUsed); - } - return pTcb; -} - -static int TransmitTcb(struct bcm_interface_adapter *psIntfAdapter, - struct bcm_usb_tcb *pTcb, PVOID data, int len) -{ - - struct urb *urb = pTcb->urb; - int retval = 0; - - urb->transfer_buffer = usb_alloc_coherent(psIntfAdapter->udev, len, - GFP_ATOMIC, &urb->transfer_dma); - if (!urb->transfer_buffer) { - BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, - "Error allocating memory\n"); - return -ENOMEM; - } - memcpy(urb->transfer_buffer, data, len); - urb->transfer_buffer_length = len; - - BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_TX, NEXT_SEND, - DBG_LVL_ALL, "Sending Bulk out packet\n"); - /* For T3B,INT OUT end point will be used as bulk out end point */ - if ((psIntfAdapter->psAdapter->chip_id == T3B) && - (psIntfAdapter->bHighSpeedDevice == TRUE)) { - usb_fill_int_urb(urb, psIntfAdapter->udev, - psIntfAdapter->sBulkOut.bulk_out_pipe, - urb->transfer_buffer, len, write_bulk_callback, pTcb, - psIntfAdapter->sBulkOut.int_out_interval); - } else { - usb_fill_bulk_urb(urb, psIntfAdapter->udev, - psIntfAdapter->sBulkOut.bulk_out_pipe, - urb->transfer_buffer, len, write_bulk_callback, pTcb); - } - urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; /* For DMA transfer */ - - if (false == psIntfAdapter->psAdapter->device_removed && - false == psIntfAdapter->psAdapter->bEndPointHalted && - false == psIntfAdapter->bSuspended && - false == psIntfAdapter->bPreparingForBusSuspend) { - retval = usb_submit_urb(urb, GFP_ATOMIC); - if (retval) { - BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_TX, - NEXT_SEND, DBG_LVL_ALL, - "failed submitting write urb, error %d", - retval); - if (retval == -EPIPE) { - psIntfAdapter->psAdapter->bEndPointHalted = TRUE; - wake_up(&psIntfAdapter->psAdapter->tx_packet_wait_queue); - } - } - } - return retval; -} - -int InterfaceTransmitPacket(PVOID arg, PVOID data, UINT len) -{ - struct bcm_usb_tcb *pTcb = NULL; - struct bcm_interface_adapter *psIntfAdapter = arg; - - pTcb = GetBulkOutTcb(psIntfAdapter); - if (pTcb == NULL) { - BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, - "No URB to transmit packet, dropping packet"); - return -EFAULT; - } - return TransmitTcb(psIntfAdapter, pTcb, data, len); -} - |