Commit 6112fd6e authored by Lars Lindley's avatar Lars Lindley Committed by Greg Kroah-Hartman

Staging: winbond: wb35rx.c Coding style fixes v2.

New patch that fixes an unclear comment too.

I fixed checkpatch issues except for long lines and printk:s.
I also removed version comments and the () in a return statement.
Generated .o is identical to master and i checked the code with
Dan Carpenters strip_whitespace.pl and diff.
Signed-off-by: default avatarLars Lindley <lindley@coyote.org>
Acked-by: default avatarDan Carpenter <error27@gmail.com>
Acked-by: default avatarPavel Machek <pavel@ucw.cz>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 42cb2945
//============================================================================ /*
// Copyright (c) 1996-2002 Winbond Electronic Corporation * ============================================================================
// * Copyright (c) 1996-2002 Winbond Electronic Corporation
// Module Name: *
// Wb35Rx.c * Module Name:
// * Wb35Rx.c
// Abstract: *
// Processing the Rx message from down layer * Abstract:
// * Processing the Rx message from down layer
//============================================================================ *
* ============================================================================
*/
#include <linux/usb.h> #include <linux/usb.h>
#include <linux/slab.h> #include <linux/slab.h>
...@@ -30,16 +32,7 @@ static void packet_came(struct ieee80211_hw *hw, char *pRxBufferAddress, int Pac ...@@ -30,16 +32,7 @@ static void packet_came(struct ieee80211_hw *hw, char *pRxBufferAddress, int Pac
return; return;
} }
memcpy(skb_put(skb, PacketSize), memcpy(skb_put(skb, PacketSize), pRxBufferAddress, PacketSize);
pRxBufferAddress,
PacketSize);
/*
rx_status.rate = 10;
rx_status.channel = 1;
rx_status.freq = 12345;
rx_status.phymode = MODE_IEEE80211B;
*/
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
ieee80211_rx_irqsafe(hw, skb); ieee80211_rx_irqsafe(hw, skb);
...@@ -47,7 +40,7 @@ static void packet_came(struct ieee80211_hw *hw, char *pRxBufferAddress, int Pac ...@@ -47,7 +40,7 @@ static void packet_came(struct ieee80211_hw *hw, char *pRxBufferAddress, int Pac
static void Wb35Rx_adjust(struct wb35_descriptor *pRxDes) static void Wb35Rx_adjust(struct wb35_descriptor *pRxDes)
{ {
u32 * pRxBufferAddress; u32 *pRxBufferAddress;
u32 DecryptionMethod; u32 DecryptionMethod;
u32 i; u32 i;
u16 BufferSize; u16 BufferSize;
...@@ -56,27 +49,24 @@ static void Wb35Rx_adjust(struct wb35_descriptor *pRxDes) ...@@ -56,27 +49,24 @@ static void Wb35Rx_adjust(struct wb35_descriptor *pRxDes)
pRxBufferAddress = pRxDes->buffer_address[0]; pRxBufferAddress = pRxDes->buffer_address[0];
BufferSize = pRxDes->buffer_size[0]; BufferSize = pRxDes->buffer_size[0];
// Adjust the last part of data. Only data left /* Adjust the last part of data. Only data left */
BufferSize -= 4; // For CRC-32 BufferSize -= 4; /* For CRC-32 */
if (DecryptionMethod) if (DecryptionMethod)
BufferSize -= 4; BufferSize -= 4;
if (DecryptionMethod == 3) // For CCMP if (DecryptionMethod == 3) /* For CCMP */
BufferSize -= 4; BufferSize -= 4;
// Adjust the IV field which after 802.11 header and ICV field. /* Adjust the IV field which after 802.11 header and ICV field. */
if (DecryptionMethod == 1) // For WEP if (DecryptionMethod == 1) { /* For WEP */
{ for (i = 6; i > 0; i--)
for( i=6; i>0; i-- ) pRxBufferAddress[i] = pRxBufferAddress[i - 1];
pRxBufferAddress[i] = pRxBufferAddress[i-1];
pRxDes->buffer_address[0] = pRxBufferAddress + 1; pRxDes->buffer_address[0] = pRxBufferAddress + 1;
BufferSize -= 4; // 4 byte for IV BufferSize -= 4; /* 4 byte for IV */
} } else if (DecryptionMethod) { /* For TKIP and CCMP */
else if( DecryptionMethod ) // For TKIP and CCMP for (i = 7; i > 1; i--)
{ pRxBufferAddress[i] = pRxBufferAddress[i - 2];
for (i=7; i>1; i--) pRxDes->buffer_address[0] = pRxBufferAddress + 2; /* Update the descriptor, shift 8 byte */
pRxBufferAddress[i] = pRxBufferAddress[i-2]; BufferSize -= 8; /* 8 byte for IV + ICV */
pRxDes->buffer_address[0] = pRxBufferAddress + 2;//Update the descriptor, shift 8 byte
BufferSize -= 8; // 8 byte for IV + ICV
} }
pRxDes->buffer_size[0] = BufferSize; pRxDes->buffer_size[0] = BufferSize;
} }
...@@ -84,53 +74,55 @@ static void Wb35Rx_adjust(struct wb35_descriptor *pRxDes) ...@@ -84,53 +74,55 @@ static void Wb35Rx_adjust(struct wb35_descriptor *pRxDes)
static u16 Wb35Rx_indicate(struct ieee80211_hw *hw) static u16 Wb35Rx_indicate(struct ieee80211_hw *hw)
{ {
struct wbsoft_priv *priv = hw->priv; struct wbsoft_priv *priv = hw->priv;
struct hw_data * pHwData = &priv->sHwData; struct hw_data *pHwData = &priv->sHwData;
struct wb35_descriptor RxDes; struct wb35_descriptor RxDes;
struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx; struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
u8 * pRxBufferAddress; u8 *pRxBufferAddress;
u16 PacketSize; u16 PacketSize;
u16 stmp, BufferSize, stmp2 = 0; u16 stmp, BufferSize, stmp2 = 0;
u32 RxBufferId; u32 RxBufferId;
// Only one thread be allowed to run into the following /* Only one thread be allowed to run into the following */
do { do {
RxBufferId = pWb35Rx->RxProcessIndex; RxBufferId = pWb35Rx->RxProcessIndex;
if (pWb35Rx->RxOwner[ RxBufferId ]) //Owner by VM if (pWb35Rx->RxOwner[RxBufferId]) /* Owner by VM */
break; break;
pWb35Rx->RxProcessIndex++; pWb35Rx->RxProcessIndex++;
pWb35Rx->RxProcessIndex %= MAX_USB_RX_BUFFER_NUMBER; pWb35Rx->RxProcessIndex %= MAX_USB_RX_BUFFER_NUMBER;
pRxBufferAddress = pWb35Rx->pDRx; pRxBufferAddress = pWb35Rx->pDRx;
BufferSize = pWb35Rx->RxBufferSize[ RxBufferId ]; BufferSize = pWb35Rx->RxBufferSize[RxBufferId];
// Parse the bulkin buffer /* Parse the bulkin buffer */
while (BufferSize >= 4) { while (BufferSize >= 4) {
if ((cpu_to_le32(*(u32 *)pRxBufferAddress) & 0x0fffffff) == RX_END_TAG) //Is ending? 921002.9.a if ((cpu_to_le32(*(u32 *)pRxBufferAddress) & 0x0fffffff) == RX_END_TAG) /* Is ending? */
break; break;
// Get the R00 R01 first /* Get the R00 R01 first */
RxDes.R00.value = le32_to_cpu(*(u32 *)pRxBufferAddress); RxDes.R00.value = le32_to_cpu(*(u32 *)pRxBufferAddress);
PacketSize = (u16)RxDes.R00.R00_receive_byte_count; PacketSize = (u16)RxDes.R00.R00_receive_byte_count;
RxDes.R01.value = le32_to_cpu(*((u32 *)(pRxBufferAddress+4))); RxDes.R01.value = le32_to_cpu(*((u32 *)(pRxBufferAddress + 4)));
// For new DMA 4k /* For new DMA 4k */
if ((PacketSize & 0x03) > 0) if ((PacketSize & 0x03) > 0)
PacketSize -= 4; PacketSize -= 4;
// Basic check for Rx length. Is length valid? /* Basic check for Rx length. Is length valid? */
if (PacketSize > MAX_PACKET_SIZE) { if (PacketSize > MAX_PACKET_SIZE) {
#ifdef _PE_RX_DUMP_ #ifdef _PE_RX_DUMP_
printk("Serious ERROR : Rx data size too long, size =%d\n", PacketSize); printk("Serious ERROR : Rx data size too long, size =%d\n", PacketSize);
#endif #endif
pWb35Rx->EP3vm_state = VM_STOP; pWb35Rx->EP3vm_state = VM_STOP;
pWb35Rx->Ep3ErrorCount2++; pWb35Rx->Ep3ErrorCount2++;
break; break;
} }
// Start to process Rx buffer /*
// RxDes.Descriptor_ID = RxBufferId; // Due to synchronous indicate, the field doesn't necessary to use. * Wb35Rx_indicate() is called synchronously so it isn't
BufferSize -= 8; //subtract 8 byte for 35's USB header length * necessary to set "RxDes.Desctriptor_ID = RxBufferID;"
*/
BufferSize -= 8; /* subtract 8 byte for 35's USB header length */
pRxBufferAddress += 8; pRxBufferAddress += 8;
RxDes.buffer_address[0] = pRxBufferAddress; RxDes.buffer_address[0] = pRxBufferAddress;
...@@ -142,18 +134,17 @@ static u16 Wb35Rx_indicate(struct ieee80211_hw *hw) ...@@ -142,18 +134,17 @@ static u16 Wb35Rx_indicate(struct ieee80211_hw *hw)
packet_came(hw, pRxBufferAddress, PacketSize); packet_came(hw, pRxBufferAddress, PacketSize);
// Move RxBuffer point to the next /* Move RxBuffer point to the next */
stmp = PacketSize + 3; stmp = PacketSize + 3;
stmp &= ~0x03; // 4n alignment stmp &= ~0x03; /* 4n alignment */
pRxBufferAddress += stmp; pRxBufferAddress += stmp;
BufferSize -= stmp; BufferSize -= stmp;
stmp2 += stmp; stmp2 += stmp;
} }
// Reclaim resource /* Reclaim resource */
pWb35Rx->RxOwner[ RxBufferId ] = 1; pWb35Rx->RxOwner[RxBufferId] = 1;
} while (true); } while (true);
return stmp2; return stmp2;
} }
...@@ -163,110 +154,108 @@ static void Wb35Rx_Complete(struct urb *urb) ...@@ -163,110 +154,108 @@ static void Wb35Rx_Complete(struct urb *urb)
{ {
struct ieee80211_hw *hw = urb->context; struct ieee80211_hw *hw = urb->context;
struct wbsoft_priv *priv = hw->priv; struct wbsoft_priv *priv = hw->priv;
struct hw_data * pHwData = &priv->sHwData; struct hw_data *pHwData = &priv->sHwData;
struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx; struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
u8 * pRxBufferAddress; u8 *pRxBufferAddress;
u32 SizeCheck; u32 SizeCheck;
u16 BulkLength; u16 BulkLength;
u32 RxBufferId; u32 RxBufferId;
R00_DESCRIPTOR R00; R00_DESCRIPTOR R00;
// Variable setting /* Variable setting */
pWb35Rx->EP3vm_state = VM_COMPLETED; pWb35Rx->EP3vm_state = VM_COMPLETED;
pWb35Rx->EP3VM_status = urb->status;//Store the last result of Irp pWb35Rx->EP3VM_status = urb->status; /* Store the last result of Irp */
RxBufferId = pWb35Rx->CurrentRxBufferId; RxBufferId = pWb35Rx->CurrentRxBufferId;
pRxBufferAddress = pWb35Rx->pDRx; pRxBufferAddress = pWb35Rx->pDRx;
BulkLength = (u16)urb->actual_length; BulkLength = (u16)urb->actual_length;
// The IRP is completed /* The IRP is completed */
pWb35Rx->EP3vm_state = VM_COMPLETED; pWb35Rx->EP3vm_state = VM_COMPLETED;
if (pHwData->SurpriseRemove || pHwData->HwStop) // Must be here, or RxBufferId is invalid if (pHwData->SurpriseRemove || pHwData->HwStop) /* Must be here, or RxBufferId is invalid */
goto error; goto error;
if (pWb35Rx->rx_halt) if (pWb35Rx->rx_halt)
goto error; goto error;
// Start to process the data only in successful condition /* Start to process the data only in successful condition */
pWb35Rx->RxOwner[ RxBufferId ] = 0; // Set the owner to driver pWb35Rx->RxOwner[RxBufferId] = 0; /* Set the owner to driver */
R00.value = le32_to_cpu(*(u32 *)pRxBufferAddress); R00.value = le32_to_cpu(*(u32 *)pRxBufferAddress);
// The URB is completed, check the result /* The URB is completed, check the result */
if (pWb35Rx->EP3VM_status != 0) { if (pWb35Rx->EP3VM_status != 0) {
#ifdef _PE_USB_STATE_DUMP_ #ifdef _PE_USB_STATE_DUMP_
printk("EP3 IoCompleteRoutine return error\n"); printk("EP3 IoCompleteRoutine return error\n");
#endif #endif
pWb35Rx->EP3vm_state = VM_STOP; pWb35Rx->EP3vm_state = VM_STOP;
goto error; goto error;
} }
// 20060220 For recovering. check if operating in single USB mode /* For recovering. check if operating in single USB mode */
if (!HAL_USB_MODE_BURST(pHwData)) { if (!HAL_USB_MODE_BURST(pHwData)) {
SizeCheck = R00.R00_receive_byte_count; //20060926 anson's endian SizeCheck = R00.R00_receive_byte_count;
if ((SizeCheck & 0x03) > 0) if ((SizeCheck & 0x03) > 0)
SizeCheck -= 4; SizeCheck -= 4;
SizeCheck = (SizeCheck + 3) & ~0x03; SizeCheck = (SizeCheck + 3) & ~0x03;
SizeCheck += 12; // 8 + 4 badbeef SizeCheck += 12; /* 8 + 4 badbeef */
if ((BulkLength > 1600) || if ((BulkLength > 1600) ||
(SizeCheck > 1600) || (SizeCheck > 1600) ||
(BulkLength != SizeCheck) || (BulkLength != SizeCheck) ||
(BulkLength == 0)) { // Add for fail Urb (BulkLength == 0)) { /* Add for fail Urb */
pWb35Rx->EP3vm_state = VM_STOP; pWb35Rx->EP3vm_state = VM_STOP;
pWb35Rx->Ep3ErrorCount2++; pWb35Rx->Ep3ErrorCount2++;
} }
} }
// Indicating the receiving data /* Indicating the receiving data */
pWb35Rx->ByteReceived += BulkLength; pWb35Rx->ByteReceived += BulkLength;
pWb35Rx->RxBufferSize[ RxBufferId ] = BulkLength; pWb35Rx->RxBufferSize[RxBufferId] = BulkLength;
if (!pWb35Rx->RxOwner[ RxBufferId ]) if (!pWb35Rx->RxOwner[RxBufferId])
Wb35Rx_indicate(hw); Wb35Rx_indicate(hw);
kfree(pWb35Rx->pDRx); kfree(pWb35Rx->pDRx);
// Do the next receive /* Do the next receive */
Wb35Rx(hw); Wb35Rx(hw);
return; return;
error: error:
pWb35Rx->RxOwner[ RxBufferId ] = 1; // Set the owner to hardware pWb35Rx->RxOwner[RxBufferId] = 1; /* Set the owner to hardware */
atomic_dec(&pWb35Rx->RxFireCounter); atomic_dec(&pWb35Rx->RxFireCounter);
pWb35Rx->EP3vm_state = VM_STOP; pWb35Rx->EP3vm_state = VM_STOP;
} }
// This function cannot reentrain /* This function cannot reentrain */
static void Wb35Rx(struct ieee80211_hw *hw) static void Wb35Rx(struct ieee80211_hw *hw)
{ {
struct wbsoft_priv *priv = hw->priv; struct wbsoft_priv *priv = hw->priv;
struct hw_data * pHwData = &priv->sHwData; struct hw_data *pHwData = &priv->sHwData;
struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx; struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
u8 * pRxBufferAddress; u8 *pRxBufferAddress;
struct urb *urb = pWb35Rx->RxUrb; struct urb *urb = pWb35Rx->RxUrb;
int retv; int retv;
u32 RxBufferId; u32 RxBufferId;
// /* Issuing URB */
// Issuing URB
//
if (pHwData->SurpriseRemove || pHwData->HwStop) if (pHwData->SurpriseRemove || pHwData->HwStop)
goto error; goto error;
if (pWb35Rx->rx_halt) if (pWb35Rx->rx_halt)
goto error; goto error;
// Get RxBuffer's ID /* Get RxBuffer's ID */
RxBufferId = pWb35Rx->RxBufferId; RxBufferId = pWb35Rx->RxBufferId;
if (!pWb35Rx->RxOwner[RxBufferId]) { if (!pWb35Rx->RxOwner[RxBufferId]) {
// It's impossible to run here. /* It's impossible to run here. */
#ifdef _PE_RX_DUMP_ #ifdef _PE_RX_DUMP_
printk("Rx driver fifo unavailable\n"); printk("Rx driver fifo unavailable\n");
#endif #endif
goto error; goto error;
} }
// Update buffer point, then start to bulkin the data from USB /* Update buffer point, then start to bulkin the data from USB */
pWb35Rx->RxBufferId++; pWb35Rx->RxBufferId++;
pWb35Rx->RxBufferId %= MAX_USB_RX_BUFFER_NUMBER; pWb35Rx->RxBufferId %= MAX_USB_RX_BUFFER_NUMBER;
...@@ -295,7 +284,7 @@ static void Wb35Rx(struct ieee80211_hw *hw) ...@@ -295,7 +284,7 @@ static void Wb35Rx(struct ieee80211_hw *hw)
return; return;
error: error:
// VM stop /* VM stop */
pWb35Rx->EP3vm_state = VM_STOP; pWb35Rx->EP3vm_state = VM_STOP;
atomic_dec(&pWb35Rx->RxFireCounter); atomic_dec(&pWb35Rx->RxFireCounter);
} }
...@@ -303,10 +292,10 @@ static void Wb35Rx(struct ieee80211_hw *hw) ...@@ -303,10 +292,10 @@ static void Wb35Rx(struct ieee80211_hw *hw)
void Wb35Rx_start(struct ieee80211_hw *hw) void Wb35Rx_start(struct ieee80211_hw *hw)
{ {
struct wbsoft_priv *priv = hw->priv; struct wbsoft_priv *priv = hw->priv;
struct hw_data * pHwData = &priv->sHwData; struct hw_data *pHwData = &priv->sHwData;
struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx; struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
// Allow only one thread to run into the Wb35Rx() function /* Allow only one thread to run into the Wb35Rx() function */
if (atomic_inc_return(&pWb35Rx->RxFireCounter) == 1) { if (atomic_inc_return(&pWb35Rx->RxFireCounter) == 1) {
pWb35Rx->EP3vm_state = VM_RUNNING; pWb35Rx->EP3vm_state = VM_RUNNING;
Wb35Rx(hw); Wb35Rx(hw);
...@@ -314,8 +303,7 @@ void Wb35Rx_start(struct ieee80211_hw *hw) ...@@ -314,8 +303,7 @@ void Wb35Rx_start(struct ieee80211_hw *hw)
atomic_dec(&pWb35Rx->RxFireCounter); atomic_dec(&pWb35Rx->RxFireCounter);
} }
//===================================================================================== static void Wb35Rx_reset_descriptor(struct hw_data *pHwData)
static void Wb35Rx_reset_descriptor( struct hw_data * pHwData )
{ {
struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx; struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
u32 i; u32 i;
...@@ -326,49 +314,49 @@ static void Wb35Rx_reset_descriptor( struct hw_data * pHwData ) ...@@ -326,49 +314,49 @@ static void Wb35Rx_reset_descriptor( struct hw_data * pHwData )
pWb35Rx->EP3vm_state = VM_STOP; pWb35Rx->EP3vm_state = VM_STOP;
pWb35Rx->rx_halt = 0; pWb35Rx->rx_halt = 0;
// Initial the Queue. The last buffer is reserved for used if the Rx resource is unavailable. /* 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++ ) for (i = 0; i < MAX_USB_RX_BUFFER_NUMBER; i++)
pWb35Rx->RxOwner[i] = 1; pWb35Rx->RxOwner[i] = 1;
} }
unsigned char Wb35Rx_initial(struct hw_data * pHwData) unsigned char Wb35Rx_initial(struct hw_data *pHwData)
{ {
struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx; struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
// Initial the Buffer Queue /* Initial the Buffer Queue */
Wb35Rx_reset_descriptor( pHwData ); Wb35Rx_reset_descriptor(pHwData);
pWb35Rx->RxUrb = usb_alloc_urb(0, GFP_ATOMIC); pWb35Rx->RxUrb = usb_alloc_urb(0, GFP_ATOMIC);
return (!!pWb35Rx->RxUrb); return !!pWb35Rx->RxUrb;
} }
void Wb35Rx_stop(struct hw_data * pHwData) void Wb35Rx_stop(struct hw_data *pHwData)
{ {
struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx; struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
// Canceling the Irp if already sends it out. /* Canceling the Irp if already sends it out. */
if (pWb35Rx->EP3vm_state == VM_RUNNING) { if (pWb35Rx->EP3vm_state == VM_RUNNING) {
usb_unlink_urb( pWb35Rx->RxUrb ); // Only use unlink, let Wb35Rx_destroy to free them usb_unlink_urb(pWb35Rx->RxUrb); /* Only use unlink, let Wb35Rx_destroy to free them */
#ifdef _PE_RX_DUMP_ #ifdef _PE_RX_DUMP_
printk("EP3 Rx stop\n"); printk("EP3 Rx stop\n");
#endif #endif
} }
} }
// Needs process context /* Needs process context */
void Wb35Rx_destroy(struct hw_data * pHwData) void Wb35Rx_destroy(struct hw_data *pHwData)
{ {
struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx; struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
do { do {
msleep(10); // Delay for waiting function enter 940623.1.a msleep(10); /* Delay for waiting function enter */
} while (pWb35Rx->EP3vm_state != VM_STOP); } while (pWb35Rx->EP3vm_state != VM_STOP);
msleep(10); // Delay for waiting function exit 940623.1.b msleep(10); /* Delay for waiting function exit */
if (pWb35Rx->RxUrb) if (pWb35Rx->RxUrb)
usb_free_urb( pWb35Rx->RxUrb ); usb_free_urb(pWb35Rx->RxUrb);
#ifdef _PE_RX_DUMP_ #ifdef _PE_RX_DUMP_
printk("Wb35Rx_destroy OK\n"); printk("Wb35Rx_destroy OK\n");
#endif #endif
} }
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