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path: root/drivers/staging/winbond/wb35tx.c
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-rw-r--r--drivers/staging/winbond/wb35tx.c154
1 files changed, 74 insertions, 80 deletions
diff --git a/drivers/staging/winbond/wb35tx.c b/drivers/staging/winbond/wb35tx.c
index 5df39d46cda4..30a77ccfe480 100644
--- a/drivers/staging/winbond/wb35tx.c
+++ b/drivers/staging/winbond/wb35tx.c
@@ -1,13 +1,13 @@
-//============================================================================
-// Copyright (c) 1996-2002 Winbond Electronic Corporation
-//
-// Module Name:
-// Wb35Tx.c
-//
-// Abstract:
-// Processing the Tx message and put into down layer
-//
-//============================================================================
+/*
+ * Copyright (c) 1996-2002 Winbond Electronic Corporation
+ *
+ * Module Name:
+ * Wb35Tx.c
+ *
+ * Abstract:
+ * Processing the Tx message and put into down layer
+ *
+ */
#include <linux/usb.h>
#include <linux/gfp.h>
@@ -15,7 +15,7 @@
#include "mds_f.h"
unsigned char
-Wb35Tx_get_tx_buffer(struct hw_data * pHwData, u8 **pBuffer)
+Wb35Tx_get_tx_buffer(struct hw_data *pHwData, u8 **pBuffer)
{
struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
@@ -25,28 +25,29 @@ Wb35Tx_get_tx_buffer(struct hw_data * pHwData, u8 **pBuffer)
static void Wb35Tx(struct wbsoft_priv *adapter);
-static void Wb35Tx_complete(struct urb * pUrb)
+static void Wb35Tx_complete(struct urb *pUrb)
{
struct wbsoft_priv *adapter = pUrb->context;
- struct hw_data * pHwData = &adapter->sHwData;
+ struct hw_data *pHwData = &adapter->sHwData;
struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
struct wb35_mds *pMds = &adapter->Mds;
printk("wb35: tx complete\n");
- // Variable setting
+ /* Variable setting */
pWb35Tx->EP4vm_state = VM_COMPLETED;
- pWb35Tx->EP4VM_status = pUrb->status; //Store the last result of Irp
- pMds->TxOwner[ pWb35Tx->TxSendIndex ] = 0;// Set the owner. Free the owner bit always.
+ pWb35Tx->EP4VM_status = pUrb->status; /* Store the last result of Irp */
+ /* Set the owner. Free the owner bit always. */
+ pMds->TxOwner[pWb35Tx->TxSendIndex] = 0;
pWb35Tx->TxSendIndex++;
pWb35Tx->TxSendIndex %= MAX_USB_TX_BUFFER_NUMBER;
- if (pHwData->SurpriseRemove) // Let WbWlanHalt to handle surprise remove
+ if (pHwData->SurpriseRemove) /* Let WbWlanHalt handle surprise remove */
goto error;
if (pWb35Tx->tx_halt)
goto error;
- // The URB is completed, check the result
+ /* The URB is completed, check the result */
if (pWb35Tx->EP4VM_status != 0) {
printk("URB submission failed\n");
pWb35Tx->EP4vm_state = VM_STOP;
@@ -64,43 +65,42 @@ error:
static void Wb35Tx(struct wbsoft_priv *adapter)
{
- struct hw_data * pHwData = &adapter->sHwData;
+ struct hw_data *pHwData = &adapter->sHwData;
struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
u8 *pTxBufferAddress;
struct wb35_mds *pMds = &adapter->Mds;
- struct urb * pUrb = (struct urb *)pWb35Tx->Tx4Urb;
- int retv;
+ struct urb *pUrb = (struct urb *)pWb35Tx->Tx4Urb;
+ int retv;
u32 SendIndex;
-
if (pHwData->SurpriseRemove)
goto cleanup;
if (pWb35Tx->tx_halt)
goto cleanup;
- // Ownership checking
+ /* Ownership checking */
SendIndex = pWb35Tx->TxSendIndex;
- if (!pMds->TxOwner[SendIndex]) //No more data need to be sent, return immediately
+ /* No more data need to be sent, return immediately */
+ if (!pMds->TxOwner[SendIndex])
goto cleanup;
pTxBufferAddress = pWb35Tx->TxBuffer[SendIndex];
- //
- // Issuing URB
- //
+
+ /* Issuing URB */
usb_fill_bulk_urb(pUrb, pHwData->udev,
usb_sndbulkpipe(pHwData->udev, 4),
- pTxBufferAddress, pMds->TxBufferSize[ SendIndex ],
+ pTxBufferAddress, pMds->TxBufferSize[SendIndex],
Wb35Tx_complete, adapter);
pWb35Tx->EP4vm_state = VM_RUNNING;
retv = usb_submit_urb(pUrb, GFP_ATOMIC);
- if (retv<0) {
+ if (retv < 0) {
printk("EP4 Tx Irp sending error\n");
goto cleanup;
}
- // Check if driver needs issue Irp for EP2
+ /* Check if driver needs issue Irp for EP2 */
pWb35Tx->TxFillCount += pMds->TxCountInBuffer[SendIndex];
if (pWb35Tx->TxFillCount > 12)
Wb35Tx_EP2VM_start(adapter);
@@ -115,10 +115,10 @@ static void Wb35Tx(struct wbsoft_priv *adapter)
void Wb35Tx_start(struct wbsoft_priv *adapter)
{
- struct hw_data * pHwData = &adapter->sHwData;
+ struct hw_data *pHwData = &adapter->sHwData;
struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
- // Allow only one thread to run into function
+ /* Allow only one thread to run into function */
if (atomic_inc_return(&pWb35Tx->TxFireCounter) == 1) {
pWb35Tx->EP4vm_state = VM_RUNNING;
Wb35Tx(adapter);
@@ -126,7 +126,7 @@ void Wb35Tx_start(struct wbsoft_priv *adapter)
atomic_dec(&pWb35Tx->TxFireCounter);
}
-unsigned char Wb35Tx_initial(struct hw_data * pHwData)
+unsigned char Wb35Tx_initial(struct hw_data *pHwData)
{
struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
@@ -135,54 +135,50 @@ unsigned char Wb35Tx_initial(struct hw_data * pHwData)
return false;
pWb35Tx->Tx2Urb = usb_alloc_urb(0, GFP_ATOMIC);
- if (!pWb35Tx->Tx2Urb)
- {
- usb_free_urb( pWb35Tx->Tx4Urb );
+ if (!pWb35Tx->Tx2Urb) {
+ usb_free_urb(pWb35Tx->Tx4Urb);
return false;
}
return true;
}
-//======================================================
-void Wb35Tx_stop(struct hw_data * pHwData)
+void Wb35Tx_stop(struct hw_data *pHwData)
{
struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
- // Trying to canceling the Trp of EP2
+ /* Try to cancel the Trp of EP2 */
if (pWb35Tx->EP2vm_state == VM_RUNNING)
- usb_unlink_urb( pWb35Tx->Tx2Urb ); // Only use unlink, let Wb35Tx_destrot to free them
+ /* Only use unlink, let Wb35Tx_destroy free them */
+ usb_unlink_urb(pWb35Tx->Tx2Urb);
pr_debug("EP2 Tx stop\n");
- // Trying to canceling the Irp of EP4
+ /* Try to cancel the Irp of EP4 */
if (pWb35Tx->EP4vm_state == VM_RUNNING)
- usb_unlink_urb( pWb35Tx->Tx4Urb ); // Only use unlink, let Wb35Tx_destrot to free them
+ /* Only use unlink, let Wb35Tx_destroy free them */
+ usb_unlink_urb(pWb35Tx->Tx4Urb);
pr_debug("EP4 Tx stop\n");
}
-//======================================================
-void Wb35Tx_destroy(struct hw_data * pHwData)
+void Wb35Tx_destroy(struct hw_data *pHwData)
{
struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
- // Wait for VM stop
+ /* Wait for VM stop */
do {
- msleep(10); // Delay for waiting function enter 940623.1.a
- } while( (pWb35Tx->EP2vm_state != VM_STOP) && (pWb35Tx->EP4vm_state != VM_STOP) );
- msleep(10); // Delay for waiting function enter 940623.1.b
-
- if (pWb35Tx->Tx4Urb)
- usb_free_urb( pWb35Tx->Tx4Urb );
+ msleep(10); /* Delay for waiting function enter 940623.1.a */
+ } while ((pWb35Tx->EP2vm_state != VM_STOP) && (pWb35Tx->EP4vm_state != VM_STOP));
+ msleep(10); /* Delay for waiting function enter 940623.1.b */
- if (pWb35Tx->Tx2Urb)
- usb_free_urb( pWb35Tx->Tx2Urb );
+ usb_free_urb(pWb35Tx->Tx4Urb);
+ usb_free_urb(pWb35Tx->Tx2Urb);
pr_debug("Wb35Tx_destroy OK\n");
}
void Wb35Tx_CurrentTime(struct wbsoft_priv *adapter, u32 TimeCount)
{
- struct hw_data * pHwData = &adapter->sHwData;
+ struct hw_data *pHwData = &adapter->sHwData;
struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
unsigned char Trigger = false;
@@ -199,46 +195,45 @@ void Wb35Tx_CurrentTime(struct wbsoft_priv *adapter, u32 TimeCount)
static void Wb35Tx_EP2VM(struct wbsoft_priv *adapter);
-static void Wb35Tx_EP2VM_complete(struct urb * pUrb)
+static void Wb35Tx_EP2VM_complete(struct urb *pUrb)
{
struct wbsoft_priv *adapter = pUrb->context;
- struct hw_data * pHwData = &adapter->sHwData;
+ struct hw_data *pHwData = &adapter->sHwData;
struct T02_descriptor T02, TSTATUS;
struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
- u32 * pltmp = (u32 *)pWb35Tx->EP2_buf;
+ u32 *pltmp = (u32 *)pWb35Tx->EP2_buf;
u32 i;
u16 InterruptInLength;
-
- // Variable setting
+ /* Variable setting */
pWb35Tx->EP2vm_state = VM_COMPLETED;
pWb35Tx->EP2VM_status = pUrb->status;
- // For Linux 2.4. Interrupt will always trigger
- if (pHwData->SurpriseRemove) // Let WbWlanHalt to handle surprise remove
+ /* For Linux 2.4. Interrupt will always trigger */
+ if (pHwData->SurpriseRemove) /* Let WbWlanHalt handle surprise remove */
goto error;
if (pWb35Tx->tx_halt)
goto error;
- //The Urb is completed, check the result
+ /* The Urb is completed, check the result */
if (pWb35Tx->EP2VM_status != 0) {
printk("EP2 IoCompleteRoutine return error\n");
- pWb35Tx->EP2vm_state= VM_STOP;
+ pWb35Tx->EP2vm_state = VM_STOP;
goto error;
}
- // Update the Tx result
+ /* Update the Tx result */
InterruptInLength = pUrb->actual_length;
- // Modify for minimum memory access and DWORD alignment.
- T02.value = cpu_to_le32(pltmp[0]) >> 8; // [31:8] -> [24:0]
- InterruptInLength -= 1;// 20051221.1.c Modify the follow for more stable
- InterruptInLength >>= 2; // InterruptInLength/4
+ /* Modify for minimum memory access and DWORD alignment. */
+ T02.value = cpu_to_le32(pltmp[0]) >> 8; /* [31:8] -> [24:0] */
+ InterruptInLength -= 1; /* 20051221.1.c Modify the follow for more stable */
+ InterruptInLength >>= 2; /* InterruptInLength/4 */
for (i = 1; i <= InterruptInLength; i++) {
T02.value |= ((cpu_to_le32(pltmp[i]) & 0xff) << 24);
- TSTATUS.value = T02.value; //20061009 anson's endian
- Mds_SendComplete( adapter, &TSTATUS );
+ TSTATUS.value = T02.value; /* 20061009 anson's endian */
+ Mds_SendComplete(adapter, &TSTATUS);
T02.value = cpu_to_le32(pltmp[i]) >> 8;
}
@@ -250,10 +245,10 @@ error:
static void Wb35Tx_EP2VM(struct wbsoft_priv *adapter)
{
- struct hw_data * pHwData = &adapter->sHwData;
+ struct hw_data *pHwData = &adapter->sHwData;
struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
- struct urb * pUrb = (struct urb *)pWb35Tx->Tx2Urb;
- u32 * pltmp = (u32 *)pWb35Tx->EP2_buf;
+ struct urb *pUrb = (struct urb *)pWb35Tx->Tx2Urb;
+ u32 *pltmp = (u32 *)pWb35Tx->EP2_buf;
int retv;
if (pHwData->SurpriseRemove)
@@ -262,11 +257,10 @@ static void Wb35Tx_EP2VM(struct wbsoft_priv *adapter)
if (pWb35Tx->tx_halt)
goto error;
- //
- // Issuing URB
- //
- usb_fill_int_urb( pUrb, pHwData->udev, usb_rcvintpipe(pHwData->udev,2),
- pltmp, MAX_INTERRUPT_LENGTH, Wb35Tx_EP2VM_complete, adapter, 32);
+ /* Issuing URB */
+ usb_fill_int_urb(pUrb, pHwData->udev, usb_rcvintpipe(pHwData->udev, 2),
+ pltmp, MAX_INTERRUPT_LENGTH, Wb35Tx_EP2VM_complete,
+ adapter, 32);
pWb35Tx->EP2vm_state = VM_RUNNING;
retv = usb_submit_urb(pUrb, GFP_ATOMIC);
@@ -284,10 +278,10 @@ error:
void Wb35Tx_EP2VM_start(struct wbsoft_priv *adapter)
{
- struct hw_data * pHwData = &adapter->sHwData;
+ struct hw_data *pHwData = &adapter->sHwData;
struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
- // Allow only one thread to run into function
+ /* Allow only one thread to run into function */
if (atomic_inc_return(&pWb35Tx->TxResultCount) == 1) {
pWb35Tx->EP2vm_state = VM_RUNNING;
Wb35Tx_EP2VM(adapter);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.