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path: root/drivers/staging/winbond/linux/wb35rx.c
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Diffstat (limited to 'drivers/staging/winbond/linux/wb35rx.c')
-rw-r--r--drivers/staging/winbond/linux/wb35rx.c334
1 files changed, 0 insertions, 334 deletions
diff --git a/drivers/staging/winbond/linux/wb35rx.c b/drivers/staging/winbond/linux/wb35rx.c
deleted file mode 100644
index b4b9f5f371d9..000000000000
--- a/drivers/staging/winbond/linux/wb35rx.c
+++ /dev/null
@@ -1,334 +0,0 @@
-//============================================================================
-// Copyright (c) 1996-2002 Winbond Electronic Corporation
-//
-// Module Name:
-// Wb35Rx.c
-//
-// Abstract:
-// Processing the Rx message from down layer
-//
-//============================================================================
-#include "sysdef.h"
-
-
-void Wb35Rx_start(phw_data_t pHwData)
-{
- PWB35RX pWb35Rx = &pHwData->Wb35Rx;
-
- // Allow only one thread to run into the Wb35Rx() function
- if (OS_ATOMIC_INC(pHwData->Adapter, &pWb35Rx->RxFireCounter) == 1) {
- pWb35Rx->EP3vm_state = VM_RUNNING;
- Wb35Rx(pHwData);
- } else
- OS_ATOMIC_DEC(pHwData->Adapter, &pWb35Rx->RxFireCounter);
-}
-
-// This function cannot reentrain
-void Wb35Rx( phw_data_t pHwData )
-{
- PWB35RX pWb35Rx = &pHwData->Wb35Rx;
- u8 * pRxBufferAddress;
- PURB pUrb = (PURB)pWb35Rx->RxUrb;
- int retv;
- u32 RxBufferId;
-
- //
- // Issuing URB
- //
- if (pHwData->SurpriseRemove || pHwData->HwStop)
- goto error;
-
- if (pWb35Rx->rx_halt)
- goto error;
-
- // Get RxBuffer's ID
- RxBufferId = pWb35Rx->RxBufferId;
- if (!pWb35Rx->RxOwner[RxBufferId]) {
- // It's impossible to run here.
- #ifdef _PE_RX_DUMP_
- WBDEBUG(("Rx driver fifo unavailable\n"));
- #endif
- goto error;
- }
-
- // Update buffer point, then start to bulkin the data from USB
- pWb35Rx->RxBufferId++;
- pWb35Rx->RxBufferId %= MAX_USB_RX_BUFFER_NUMBER;
-
- pWb35Rx->CurrentRxBufferId = RxBufferId;
-
- if (1 != OS_MEMORY_ALLOC((void* *)&pWb35Rx->pDRx, MAX_USB_RX_BUFFER)) {
- printk("w35und: Rx memory alloc failed\n");
- goto error;
- }
- pRxBufferAddress = pWb35Rx->pDRx;
-
- usb_fill_bulk_urb(pUrb, pHwData->WbUsb.udev,
- usb_rcvbulkpipe(pHwData->WbUsb.udev, 3),
- pRxBufferAddress, MAX_USB_RX_BUFFER,
- Wb35Rx_Complete, pHwData);
-
- pWb35Rx->EP3vm_state = VM_RUNNING;
-
- retv = wb_usb_submit_urb(pUrb);
-
- if (retv != 0) {
- printk("Rx URB sending error\n");
- goto error;
- }
- return;
-
-error:
- // VM stop
- pWb35Rx->EP3vm_state = VM_STOP;
- OS_ATOMIC_DEC( pHwData->Adapter, &pWb35Rx->RxFireCounter );
-}
-
-void Wb35Rx_Complete(PURB pUrb)
-{
- phw_data_t pHwData = pUrb->context;
- PWB35RX pWb35Rx = &pHwData->Wb35Rx;
- u8 * pRxBufferAddress;
- u32 SizeCheck;
- u16 BulkLength;
- u32 RxBufferId;
- R00_DESCRIPTOR R00;
-
- // Variable setting
- pWb35Rx->EP3vm_state = VM_COMPLETED;
- pWb35Rx->EP3VM_status = pUrb->status;//Store the last result of Irp
-
- RxBufferId = pWb35Rx->CurrentRxBufferId;
-
- pRxBufferAddress = pWb35Rx->pDRx;
- BulkLength = (u16)pUrb->actual_length;
-
- // The IRP is completed
- pWb35Rx->EP3vm_state = VM_COMPLETED;
-
- if (pHwData->SurpriseRemove || pHwData->HwStop) // Must be here, or RxBufferId is invalid
- goto error;
-
- if (pWb35Rx->rx_halt)
- goto error;
-
- // Start to process the data only in successful condition
- pWb35Rx->RxOwner[ RxBufferId ] = 0; // Set the owner to driver
- R00.value = le32_to_cpu(*(u32 *)pRxBufferAddress);
-
- // The URB is completed, check the result
- if (pWb35Rx->EP3VM_status != 0) {
- #ifdef _PE_USB_STATE_DUMP_
- WBDEBUG(("EP3 IoCompleteRoutine return error\n"));
- DebugUsbdStatusInformation( pWb35Rx->EP3VM_status );
- #endif
- pWb35Rx->EP3vm_state = VM_STOP;
- goto error;
- }
-
- // 20060220 For recovering. check if operating in single USB mode
- if (!HAL_USB_MODE_BURST(pHwData)) {
- SizeCheck = R00.R00_receive_byte_count; //20060926 anson's endian
- if ((SizeCheck & 0x03) > 0)
- SizeCheck -= 4;
- SizeCheck = (SizeCheck + 3) & ~0x03;
- SizeCheck += 12; // 8 + 4 badbeef
- if ((BulkLength > 1600) ||
- (SizeCheck > 1600) ||
- (BulkLength != SizeCheck) ||
- (BulkLength == 0)) { // Add for fail Urb
- pWb35Rx->EP3vm_state = VM_STOP;
- pWb35Rx->Ep3ErrorCount2++;
- }
- }
-
- // Indicating the receiving data
- pWb35Rx->ByteReceived += BulkLength;
- pWb35Rx->RxBufferSize[ RxBufferId ] = BulkLength;
-
- if (!pWb35Rx->RxOwner[ RxBufferId ])
- Wb35Rx_indicate(pHwData);
-
- kfree(pWb35Rx->pDRx);
- // Do the next receive
- Wb35Rx(pHwData);
- return;
-
-error:
- pWb35Rx->RxOwner[ RxBufferId ] = 1; // Set the owner to hardware
- OS_ATOMIC_DEC( pHwData->Adapter, &pWb35Rx->RxFireCounter );
- pWb35Rx->EP3vm_state = VM_STOP;
-}
-
-//=====================================================================================
-unsigned char Wb35Rx_initial(phw_data_t pHwData)
-{
- PWB35RX pWb35Rx = &pHwData->Wb35Rx;
-
- // Initial the Buffer Queue
- Wb35Rx_reset_descriptor( pHwData );
-
- pWb35Rx->RxUrb = wb_usb_alloc_urb(0);
- return (!!pWb35Rx->RxUrb);
-}
-
-void Wb35Rx_stop(phw_data_t pHwData)
-{
- PWB35RX pWb35Rx = &pHwData->Wb35Rx;
-
- // Canceling the Irp if already sends it out.
- if (pWb35Rx->EP3vm_state == VM_RUNNING) {
- usb_unlink_urb( pWb35Rx->RxUrb ); // Only use unlink, let Wb35Rx_destroy to free them
- #ifdef _PE_RX_DUMP_
- WBDEBUG(("EP3 Rx stop\n"));
- #endif
- }
-}
-
-// Needs process context
-void Wb35Rx_destroy(phw_data_t pHwData)
-{
- PWB35RX pWb35Rx = &pHwData->Wb35Rx;
-
- do {
- OS_SLEEP(10000); // Delay for waiting function enter 940623.1.a
- } while (pWb35Rx->EP3vm_state != VM_STOP);
- OS_SLEEP(10000); // Delay for waiting function exit 940623.1.b
-
- if (pWb35Rx->RxUrb)
- usb_free_urb( pWb35Rx->RxUrb );
- #ifdef _PE_RX_DUMP_
- WBDEBUG(("Wb35Rx_destroy OK\n"));
- #endif
-}
-
-void Wb35Rx_reset_descriptor( phw_data_t pHwData )
-{
- PWB35RX pWb35Rx = &pHwData->Wb35Rx;
- u32 i;
-
- pWb35Rx->ByteReceived = 0;
- pWb35Rx->RxProcessIndex = 0;
- pWb35Rx->RxBufferId = 0;
- pWb35Rx->EP3vm_state = VM_STOP;
- pWb35Rx->rx_halt = 0;
-
- // Initial the Queue. The last buffer is reserved for used if the Rx resource is unavailable.
- for( i=0; i<MAX_USB_RX_BUFFER_NUMBER; i++ )
- pWb35Rx->RxOwner[i] = 1;
-}
-
-void Wb35Rx_adjust(PDESCRIPTOR pRxDes)
-{
- u32 * pRxBufferAddress;
- u32 DecryptionMethod;
- u32 i;
- u16 BufferSize;
-
- DecryptionMethod = pRxDes->R01.R01_decryption_method;
- pRxBufferAddress = pRxDes->buffer_address[0];
- BufferSize = pRxDes->buffer_size[0];
-
- // Adjust the last part of data. Only data left
- BufferSize -= 4; // For CRC-32
- if (DecryptionMethod)
- BufferSize -= 4;
- if (DecryptionMethod == 3) // For CCMP
- BufferSize -= 4;
-
- // Adjust the IV field which after 802.11 header and ICV field.
- if (DecryptionMethod == 1) // For WEP
- {
- for( i=6; i>0; i-- )
- pRxBufferAddress[i] = pRxBufferAddress[i-1];
- pRxDes->buffer_address[0] = pRxBufferAddress + 1;
- BufferSize -= 4; // 4 byte for IV
- }
- else if( DecryptionMethod ) // For TKIP and CCMP
- {
- for (i=7; i>1; i--)
- pRxBufferAddress[i] = pRxBufferAddress[i-2];
- pRxDes->buffer_address[0] = pRxBufferAddress + 2;//Update the descriptor, shift 8 byte
- BufferSize -= 8; // 8 byte for IV + ICV
- }
- pRxDes->buffer_size[0] = BufferSize;
-}
-
-extern void packet_came(char *pRxBufferAddress, int PacketSize);
-
-
-u16 Wb35Rx_indicate(phw_data_t pHwData)
-{
- DESCRIPTOR RxDes;
- PWB35RX pWb35Rx = &pHwData->Wb35Rx;
- u8 * pRxBufferAddress;
- u16 PacketSize;
- u16 stmp, BufferSize, stmp2 = 0;
- u32 RxBufferId;
-
- // Only one thread be allowed to run into the following
- do {
- RxBufferId = pWb35Rx->RxProcessIndex;
- if (pWb35Rx->RxOwner[ RxBufferId ]) //Owner by VM
- break;
-
- pWb35Rx->RxProcessIndex++;
- pWb35Rx->RxProcessIndex %= MAX_USB_RX_BUFFER_NUMBER;
-
- pRxBufferAddress = pWb35Rx->pDRx;
- BufferSize = pWb35Rx->RxBufferSize[ RxBufferId ];
-
- // Parse the bulkin buffer
- while (BufferSize >= 4) {
- if ((cpu_to_le32(*(u32 *)pRxBufferAddress) & 0x0fffffff) == RX_END_TAG) //Is ending? 921002.9.a
- break;
-
- // Get the R00 R01 first
- RxDes.R00.value = le32_to_cpu(*(u32 *)pRxBufferAddress);
- PacketSize = (u16)RxDes.R00.R00_receive_byte_count;
- RxDes.R01.value = le32_to_cpu(*((u32 *)(pRxBufferAddress+4)));
- // For new DMA 4k
- if ((PacketSize & 0x03) > 0)
- PacketSize -= 4;
-
- // Basic check for Rx length. Is length valid?
- if (PacketSize > MAX_PACKET_SIZE) {
- #ifdef _PE_RX_DUMP_
- WBDEBUG(("Serious ERROR : Rx data size too long, size =%d\n", PacketSize));
- #endif
-
- pWb35Rx->EP3vm_state = VM_STOP;
- pWb35Rx->Ep3ErrorCount2++;
- break;
- }
-
- // Start to process Rx buffer
-// RxDes.Descriptor_ID = RxBufferId; // Due to synchronous indicate, the field doesn't necessary to use.
- BufferSize -= 8; //subtract 8 byte for 35's USB header length
- pRxBufferAddress += 8;
-
- RxDes.buffer_address[0] = pRxBufferAddress;
- RxDes.buffer_size[0] = PacketSize;
- RxDes.buffer_number = 1;
- RxDes.buffer_start_index = 0;
- RxDes.buffer_total_size = RxDes.buffer_size[0];
- Wb35Rx_adjust(&RxDes);
-
- packet_came(pRxBufferAddress, PacketSize);
-
- // Move RxBuffer point to the next
- stmp = PacketSize + 3;
- stmp &= ~0x03; // 4n alignment
- pRxBufferAddress += stmp;
- BufferSize -= stmp;
- stmp2 += stmp;
- }
-
- // Reclaim resource
- pWb35Rx->RxOwner[ RxBufferId ] = 1;
- } while(TRUE);
-
- return stmp2;
-}
-
-