![Pekka Enberg](/assets/img/avatar_default.png)
As this typedef is used everywhere in the driver, remove it in a separate patch. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
306 lines
7.6 KiB
C
306 lines
7.6 KiB
C
//============================================================================
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// Copyright (c) 1996-2002 Winbond Electronic Corporation
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//
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// Module Name:
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// Wb35Tx.c
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//
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// Abstract:
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// Processing the Tx message and put into down layer
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//
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//============================================================================
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#include <linux/usb.h>
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#include "wb35tx_f.h"
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#include "mds_f.h"
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#include "sysdef.h"
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unsigned char
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Wb35Tx_get_tx_buffer(struct hw_data * pHwData, u8 **pBuffer)
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{
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struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
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*pBuffer = pWb35Tx->TxBuffer[0];
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return true;
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}
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static void Wb35Tx(struct wbsoft_priv *adapter);
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static void Wb35Tx_complete(struct urb * pUrb)
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{
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struct wbsoft_priv *adapter = pUrb->context;
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struct hw_data * pHwData = &adapter->sHwData;
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struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
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PMDS pMds = &adapter->Mds;
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printk("wb35: tx complete\n");
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// Variable setting
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pWb35Tx->EP4vm_state = VM_COMPLETED;
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pWb35Tx->EP4VM_status = pUrb->status; //Store the last result of Irp
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pMds->TxOwner[ pWb35Tx->TxSendIndex ] = 0;// Set the owner. Free the owner bit always.
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pWb35Tx->TxSendIndex++;
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pWb35Tx->TxSendIndex %= MAX_USB_TX_BUFFER_NUMBER;
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if (pHwData->SurpriseRemove || pHwData->HwStop) // Let WbWlanHalt to handle surprise remove
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goto error;
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if (pWb35Tx->tx_halt)
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goto error;
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// The URB is completed, check the result
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if (pWb35Tx->EP4VM_status != 0) {
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printk("URB submission failed\n");
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pWb35Tx->EP4vm_state = VM_STOP;
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goto error;
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}
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Mds_Tx(adapter);
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Wb35Tx(adapter);
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return;
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error:
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atomic_dec(&pWb35Tx->TxFireCounter);
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pWb35Tx->EP4vm_state = VM_STOP;
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}
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static void Wb35Tx(struct wbsoft_priv *adapter)
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{
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struct hw_data * pHwData = &adapter->sHwData;
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struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
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u8 *pTxBufferAddress;
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PMDS pMds = &adapter->Mds;
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struct urb * pUrb = (struct urb *)pWb35Tx->Tx4Urb;
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int retv;
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u32 SendIndex;
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if (pHwData->SurpriseRemove || pHwData->HwStop)
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goto cleanup;
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if (pWb35Tx->tx_halt)
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goto cleanup;
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// Ownership checking
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SendIndex = pWb35Tx->TxSendIndex;
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if (!pMds->TxOwner[SendIndex]) //No more data need to be sent, return immediately
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goto cleanup;
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pTxBufferAddress = pWb35Tx->TxBuffer[SendIndex];
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//
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// Issuing URB
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//
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usb_fill_bulk_urb(pUrb, pHwData->WbUsb.udev,
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usb_sndbulkpipe(pHwData->WbUsb.udev, 4),
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pTxBufferAddress, pMds->TxBufferSize[ SendIndex ],
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Wb35Tx_complete, adapter);
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pWb35Tx->EP4vm_state = VM_RUNNING;
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retv = usb_submit_urb(pUrb, GFP_ATOMIC);
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if (retv<0) {
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printk("EP4 Tx Irp sending error\n");
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goto cleanup;
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}
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// Check if driver needs issue Irp for EP2
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pWb35Tx->TxFillCount += pMds->TxCountInBuffer[SendIndex];
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if (pWb35Tx->TxFillCount > 12)
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Wb35Tx_EP2VM_start(adapter);
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pWb35Tx->ByteTransfer += pMds->TxBufferSize[SendIndex];
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return;
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cleanup:
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pWb35Tx->EP4vm_state = VM_STOP;
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atomic_dec(&pWb35Tx->TxFireCounter);
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}
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void Wb35Tx_start(struct wbsoft_priv *adapter)
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{
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struct hw_data * pHwData = &adapter->sHwData;
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struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
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// Allow only one thread to run into function
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if (atomic_inc_return(&pWb35Tx->TxFireCounter) == 1) {
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pWb35Tx->EP4vm_state = VM_RUNNING;
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Wb35Tx(adapter);
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} else
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atomic_dec(&pWb35Tx->TxFireCounter);
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}
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unsigned char Wb35Tx_initial(struct hw_data * pHwData)
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{
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struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
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pWb35Tx->Tx4Urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (!pWb35Tx->Tx4Urb)
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return false;
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pWb35Tx->Tx2Urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (!pWb35Tx->Tx2Urb)
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{
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usb_free_urb( pWb35Tx->Tx4Urb );
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return false;
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}
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return true;
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}
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//======================================================
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void Wb35Tx_stop(struct hw_data * pHwData)
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{
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struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
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// Trying to canceling the Trp of EP2
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if (pWb35Tx->EP2vm_state == VM_RUNNING)
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usb_unlink_urb( pWb35Tx->Tx2Urb ); // Only use unlink, let Wb35Tx_destrot to free them
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#ifdef _PE_TX_DUMP_
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printk("EP2 Tx stop\n");
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#endif
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// Trying to canceling the Irp of EP4
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if (pWb35Tx->EP4vm_state == VM_RUNNING)
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usb_unlink_urb( pWb35Tx->Tx4Urb ); // Only use unlink, let Wb35Tx_destrot to free them
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#ifdef _PE_TX_DUMP_
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printk("EP4 Tx stop\n");
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#endif
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}
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//======================================================
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void Wb35Tx_destroy(struct hw_data * pHwData)
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{
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struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
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// Wait for VM stop
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do {
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msleep(10); // Delay for waiting function enter 940623.1.a
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} while( (pWb35Tx->EP2vm_state != VM_STOP) && (pWb35Tx->EP4vm_state != VM_STOP) );
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msleep(10); // Delay for waiting function enter 940623.1.b
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if (pWb35Tx->Tx4Urb)
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usb_free_urb( pWb35Tx->Tx4Urb );
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if (pWb35Tx->Tx2Urb)
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usb_free_urb( pWb35Tx->Tx2Urb );
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#ifdef _PE_TX_DUMP_
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printk("Wb35Tx_destroy OK\n");
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#endif
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}
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void Wb35Tx_CurrentTime(struct wbsoft_priv *adapter, u32 TimeCount)
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{
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struct hw_data * pHwData = &adapter->sHwData;
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struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
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unsigned char Trigger = false;
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if (pWb35Tx->TxTimer > TimeCount)
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Trigger = true;
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else if (TimeCount > (pWb35Tx->TxTimer+500))
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Trigger = true;
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if (Trigger) {
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pWb35Tx->TxTimer = TimeCount;
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Wb35Tx_EP2VM_start(adapter);
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}
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}
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static void Wb35Tx_EP2VM(struct wbsoft_priv *adapter);
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static void Wb35Tx_EP2VM_complete(struct urb * pUrb)
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{
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struct wbsoft_priv *adapter = pUrb->context;
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struct hw_data * pHwData = &adapter->sHwData;
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T02_DESCRIPTOR T02, TSTATUS;
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struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
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u32 * pltmp = (u32 *)pWb35Tx->EP2_buf;
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u32 i;
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u16 InterruptInLength;
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// Variable setting
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pWb35Tx->EP2vm_state = VM_COMPLETED;
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pWb35Tx->EP2VM_status = pUrb->status;
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// For Linux 2.4. Interrupt will always trigger
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if (pHwData->SurpriseRemove || pHwData->HwStop) // Let WbWlanHalt to handle surprise remove
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goto error;
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if (pWb35Tx->tx_halt)
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goto error;
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//The Urb is completed, check the result
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if (pWb35Tx->EP2VM_status != 0) {
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printk("EP2 IoCompleteRoutine return error\n");
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pWb35Tx->EP2vm_state= VM_STOP;
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goto error;
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}
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// Update the Tx result
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InterruptInLength = pUrb->actual_length;
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// Modify for minimum memory access and DWORD alignment.
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T02.value = cpu_to_le32(pltmp[0]) >> 8; // [31:8] -> [24:0]
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InterruptInLength -= 1;// 20051221.1.c Modify the follow for more stable
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InterruptInLength >>= 2; // InterruptInLength/4
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for (i = 1; i <= InterruptInLength; i++) {
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T02.value |= ((cpu_to_le32(pltmp[i]) & 0xff) << 24);
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TSTATUS.value = T02.value; //20061009 anson's endian
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Mds_SendComplete( adapter, &TSTATUS );
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T02.value = cpu_to_le32(pltmp[i]) >> 8;
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}
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return;
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error:
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atomic_dec(&pWb35Tx->TxResultCount);
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pWb35Tx->EP2vm_state = VM_STOP;
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}
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static void Wb35Tx_EP2VM(struct wbsoft_priv *adapter)
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{
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struct hw_data * pHwData = &adapter->sHwData;
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struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
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struct urb * pUrb = (struct urb *)pWb35Tx->Tx2Urb;
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u32 * pltmp = (u32 *)pWb35Tx->EP2_buf;
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int retv;
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if (pHwData->SurpriseRemove || pHwData->HwStop)
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goto error;
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if (pWb35Tx->tx_halt)
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goto error;
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//
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// Issuing URB
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//
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usb_fill_int_urb( pUrb, pHwData->WbUsb.udev, usb_rcvintpipe(pHwData->WbUsb.udev,2),
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pltmp, MAX_INTERRUPT_LENGTH, Wb35Tx_EP2VM_complete, adapter, 32);
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pWb35Tx->EP2vm_state = VM_RUNNING;
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retv = usb_submit_urb(pUrb, GFP_ATOMIC);
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if (retv < 0) {
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#ifdef _PE_TX_DUMP_
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printk("EP2 Tx Irp sending error\n");
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#endif
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goto error;
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}
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return;
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error:
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pWb35Tx->EP2vm_state = VM_STOP;
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atomic_dec(&pWb35Tx->TxResultCount);
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}
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void Wb35Tx_EP2VM_start(struct wbsoft_priv *adapter)
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{
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struct hw_data * pHwData = &adapter->sHwData;
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struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
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// Allow only one thread to run into function
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if (atomic_inc_return(&pWb35Tx->TxResultCount) == 1) {
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pWb35Tx->EP2vm_state = VM_RUNNING;
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Wb35Tx_EP2VM(adapter);
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}
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else
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atomic_dec(&pWb35Tx->TxResultCount);
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}
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