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From: Dan Carpenter <error27@gmail.com>
To: Lars Lindley <lindley@coyote.org>
Cc: gregkh@suse.de, greg@kroah.com, penberg@cs.helsinki.fi,
	pavel@ucw.cz, harvey.harrison@gmail.com,
	devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] staging: winbond: wb35reg.c Coding style fixes v2.
Date: Thu, 25 Mar 2010 17:26:07 +0300	[thread overview]
Message-ID: <20100325142607.GB15851@bicker> (raw)
In-Reply-To: <1269524693-27586-1-git-send-email-lindley@coyote.org>

On Thu, Mar 25, 2010 at 02:44:53PM +0100, Lars Lindley wrote:
> I fixed the problems reported by checkpatch.pl excetp for
> long lines, a couple of printks and some warnings about usb_free_urb(NULL).
> I checked for regressions with Dan Carpenters strip_whitespace.pl
> and diff and everything looks good.
> Generated .o is identical to master.
> 

Acked-by:  Dan Carpenter <error27@gmail.com>

Btw, you didn't introduce them, but there were several places which had
two blank lines in a row.  You can delete those if you want, next time.

Thanks again for doing this.  It's much cleaner.

regards,
dan carpenter

> This is a new patch against master where I fixed up a switch-statement
> after comments from Pavel Machek.
> 
> Signed-off-by: Lars Lindley <lindley@coyote.org>
> ---
>  drivers/staging/winbond/wb35reg.c |  618 ++++++++++++++++++-------------------
>  1 files changed, 305 insertions(+), 313 deletions(-)
> 
> diff --git a/drivers/staging/winbond/wb35reg.c b/drivers/staging/winbond/wb35reg.c
> index f5608ad..6f47813 100644
> --- a/drivers/staging/winbond/wb35reg.c
> +++ b/drivers/staging/winbond/wb35reg.c
> @@ -5,60 +5,61 @@
>  
>  extern void phy_calibration_winbond(struct hw_data *phw_data, u32 frequency);
>  
> -// true  : read command process successfully
> -// false : register not support
> -// RegisterNo : start base
> -// pRegisterData : data point
> -// NumberOfData : number of register data
> -// Flag : AUTO_INCREMENT - RegisterNo will auto increment 4
> -//		  NO_INCREMENT - Function will write data into the same register
> -unsigned char
> -Wb35Reg_BurstWrite(struct hw_data * pHwData, u16 RegisterNo, u32 * pRegisterData, u8 NumberOfData, u8 Flag)
> +/*
> + * true  : read command process successfully
> + * false : register not support
> + * RegisterNo : start base
> + * pRegisterData : data point
> + * NumberOfData : number of register data
> + * Flag : AUTO_INCREMENT - RegisterNo will auto increment 4
> + *	  NO_INCREMENT - Function will write data into the same register
> + */
> +unsigned char Wb35Reg_BurstWrite(struct hw_data *pHwData, u16 RegisterNo, u32 *pRegisterData, u8 NumberOfData, u8 Flag)
>  {
> -	struct wb35_reg *reg = &pHwData->reg;
> -	struct urb	*urb = NULL;
> -	struct wb35_reg_queue *reg_queue = NULL;
> -	u16		UrbSize;
> -	struct      usb_ctrlrequest *dr;
> -	u16		i, DataSize = NumberOfData*4;
> -
> -	// Module shutdown
> +	struct wb35_reg		*reg = &pHwData->reg;
> +	struct urb		*urb = NULL;
> +	struct wb35_reg_queue	*reg_queue = NULL;
> +	u16			UrbSize;
> +	struct usb_ctrlrequest	*dr;
> +	u16			i, DataSize = NumberOfData * 4;
> +
> +	/* Module shutdown */
>  	if (pHwData->SurpriseRemove)
>  		return false;
>  
> -	// Trying to use burst write function if use new hardware
> +	/* Trying to use burst write function if use new hardware */
>  	UrbSize = sizeof(struct wb35_reg_queue) + DataSize + sizeof(struct usb_ctrlrequest);
>  	reg_queue = kzalloc(UrbSize, GFP_ATOMIC);
>  	urb = usb_alloc_urb(0, GFP_ATOMIC);
> -	if( urb && reg_queue ) {
> -		reg_queue->DIRECT = 2;// burst write register
> +	if (urb && reg_queue) {
> +		reg_queue->DIRECT = 2; /* burst write register */
>  		reg_queue->INDEX = RegisterNo;
>  		reg_queue->pBuffer = (u32 *)((u8 *)reg_queue + sizeof(struct wb35_reg_queue));
> -		memcpy( reg_queue->pBuffer, pRegisterData, DataSize );
> -		//the function for reversing register data from little endian to big endian
> -		for( i=0; i<NumberOfData ; i++ )
> -			reg_queue->pBuffer[i] = cpu_to_le32( reg_queue->pBuffer[i] );
> +		memcpy(reg_queue->pBuffer, pRegisterData, DataSize);
> +		/* the function for reversing register data from little endian to big endian */
> +		for (i = 0; i < NumberOfData ; i++)
> +			reg_queue->pBuffer[i] = cpu_to_le32(reg_queue->pBuffer[i]);
>  
>  		dr = (struct usb_ctrlrequest *)((u8 *)reg_queue + sizeof(struct wb35_reg_queue) + DataSize);
>  		dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE;
> -		dr->bRequest = 0x04; // USB or vendor-defined request code, burst mode
> -		dr->wValue = cpu_to_le16( Flag ); // 0: Register number auto-increment, 1: No auto increment
> -		dr->wIndex = cpu_to_le16( RegisterNo );
> -		dr->wLength = cpu_to_le16( DataSize );
> +		dr->bRequest = 0x04; /* USB or vendor-defined request code, burst mode */
> +		dr->wValue = cpu_to_le16(Flag); /* 0: Register number auto-increment, 1: No auto increment */
> +		dr->wIndex = cpu_to_le16(RegisterNo);
> +		dr->wLength = cpu_to_le16(DataSize);
>  		reg_queue->Next = NULL;
>  		reg_queue->pUsbReq = dr;
>  		reg_queue->urb = urb;
>  
> -		spin_lock_irq( &reg->EP0VM_spin_lock );
> +		spin_lock_irq(&reg->EP0VM_spin_lock);
>  		if (reg->reg_first == NULL)
>  			reg->reg_first = reg_queue;
>  		else
>  			reg->reg_last->Next = reg_queue;
>  		reg->reg_last = reg_queue;
>  
> -		spin_unlock_irq( &reg->EP0VM_spin_lock );
> +		spin_unlock_irq(&reg->EP0VM_spin_lock);
>  
> -		// Start EP0VM
> +		/* Start EP0VM */
>  		Wb35Reg_EP0VM_start(pHwData);
>  
>  		return true;
> @@ -72,8 +73,7 @@ Wb35Reg_BurstWrite(struct hw_data * pHwData, u16 RegisterNo, u32 * pRegisterData
>     return false;
>  }
>  
> -void
> -Wb35Reg_Update(struct hw_data * pHwData,  u16 RegisterNo,  u32 RegisterValue)
> +void Wb35Reg_Update(struct hw_data *pHwData,  u16 RegisterNo,  u32 RegisterValue)
>  {
>  	struct wb35_reg *reg = &pHwData->reg;
>  	switch (RegisterNo) {
> @@ -115,97 +115,96 @@ Wb35Reg_Update(struct hw_data * pHwData,  u16 RegisterNo,  u32 RegisterValue)
>  	}
>  }
>  
> -// true  : read command process successfully
> -// false : register not support
> -unsigned char
> -Wb35Reg_WriteSync(  struct hw_data * pHwData,  u16 RegisterNo,  u32 RegisterValue )
> +/*
> + * true  : read command process successfully
> + * false : register not support
> + */
> +unsigned char Wb35Reg_WriteSync(struct hw_data *pHwData, u16 RegisterNo, u32 RegisterValue)
>  {
>  	struct wb35_reg *reg = &pHwData->reg;
>  	int ret = -1;
>  
> -	// Module shutdown
> +	/* Module shutdown */
>  	if (pHwData->SurpriseRemove)
>  		return false;
>  
>  	RegisterValue = cpu_to_le32(RegisterValue);
>  
> -	// update the register by send usb message------------------------------------
> +	/* update the register by send usb message */
>  	reg->SyncIoPause = 1;
>  
> -	// 20060717.5 Wait until EP0VM stop
> +	/* Wait until EP0VM stop */
>  	while (reg->EP0vm_state != VM_STOP)
>  		msleep(10);
>  
> -	// Sync IoCallDriver
> +	/* Sync IoCallDriver */
>  	reg->EP0vm_state = VM_RUNNING;
> -	ret = usb_control_msg( pHwData->WbUsb.udev,
> -			       usb_sndctrlpipe( pHwData->WbUsb.udev, 0 ),
> +	ret = usb_control_msg(pHwData->WbUsb.udev,
> +			       usb_sndctrlpipe(pHwData->WbUsb.udev, 0),
>  			       0x03, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
> -			       0x0,RegisterNo, &RegisterValue, 4, HZ*100 );
> +			       0x0, RegisterNo, &RegisterValue, 4, HZ * 100);
>  	reg->EP0vm_state = VM_STOP;
>  	reg->SyncIoPause = 0;
>  
>  	Wb35Reg_EP0VM_start(pHwData);
>  
>  	if (ret < 0) {
> -		#ifdef _PE_REG_DUMP_
> +#ifdef _PE_REG_DUMP_
>  		printk("EP0 Write register usb message sending error\n");
> -		#endif
> -
> -		pHwData->SurpriseRemove = 1; // 20060704.2
> +#endif
> +		pHwData->SurpriseRemove = 1;
>  		return false;
>  	}
> -
>  	return true;
>  }
>  
> -// true  : read command process successfully
> -// false : register not support
> -unsigned char
> -Wb35Reg_Write(  struct hw_data * pHwData,  u16 RegisterNo,  u32 RegisterValue )
> +/*
> + * true  : read command process successfully
> + * false : register not support
> + */
> +unsigned char Wb35Reg_Write(struct hw_data *pHwData, u16 RegisterNo, u32 RegisterValue)
>  {
> -	struct wb35_reg *reg = &pHwData->reg;
> -	struct usb_ctrlrequest *dr;
> -	struct urb	*urb = NULL;
> -	struct wb35_reg_queue *reg_queue = NULL;
> -	u16		UrbSize;
> -
> +	struct wb35_reg		*reg = &pHwData->reg;
> +	struct usb_ctrlrequest	*dr;
> +	struct urb		*urb = NULL;
> +	struct wb35_reg_queue	*reg_queue = NULL;
> +	u16			UrbSize;
>  
> -	// Module shutdown
> +	/* Module shutdown */
>  	if (pHwData->SurpriseRemove)
>  		return false;
>  
> -	// update the register by send urb request------------------------------------
> +	/* update the register by send urb request */
>  	UrbSize = sizeof(struct wb35_reg_queue) + sizeof(struct usb_ctrlrequest);
>  	reg_queue = kzalloc(UrbSize, GFP_ATOMIC);
>  	urb = usb_alloc_urb(0, GFP_ATOMIC);
>  	if (urb && reg_queue) {
> -		reg_queue->DIRECT = 1;// burst write register
> +		reg_queue->DIRECT = 1; /* burst write register */
>  		reg_queue->INDEX = RegisterNo;
>  		reg_queue->VALUE = cpu_to_le32(RegisterValue);
>  		reg_queue->RESERVED_VALID = false;
>  		dr = (struct usb_ctrlrequest *)((u8 *)reg_queue + sizeof(struct wb35_reg_queue));
> -		dr->bRequestType = USB_TYPE_VENDOR|USB_DIR_OUT |USB_RECIP_DEVICE;
> -		dr->bRequest = 0x03; // USB or vendor-defined request code, burst mode
> +		dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE;
> +		dr->bRequest = 0x03; /* USB or vendor-defined request code, burst mode */
>  		dr->wValue = cpu_to_le16(0x0);
>  		dr->wIndex = cpu_to_le16(RegisterNo);
>  		dr->wLength = cpu_to_le16(4);
>  
> -		// Enter the sending queue
> +		/* Enter the sending queue */
>  		reg_queue->Next = NULL;
>  		reg_queue->pUsbReq = dr;
>  		reg_queue->urb = urb;
>  
> -		spin_lock_irq(&reg->EP0VM_spin_lock );
> +		spin_lock_irq(&reg->EP0VM_spin_lock);
>  		if (reg->reg_first == NULL)
>  			reg->reg_first = reg_queue;
>  		else
>  			reg->reg_last->Next = reg_queue;
>  		reg->reg_last = reg_queue;
>  
> -		spin_unlock_irq( &reg->EP0VM_spin_lock );
> +		spin_unlock_irq(&reg->EP0VM_spin_lock);
>  
> -		// Start EP0VM
> +		/* Start EP0VM */
>  		Wb35Reg_EP0VM_start(pHwData);
>  
>  		return true;
> @@ -217,56 +216,60 @@ Wb35Reg_Write(  struct hw_data * pHwData,  u16 RegisterNo,  u32 RegisterValue )
>  	}
>  }
>  
> -//This command will be executed with a user defined value. When it completes,
> -//this value is useful. For example, hal_set_current_channel will use it.
> -// true  : read command process successfully
> -// false : register not support
> -unsigned char
> -Wb35Reg_WriteWithCallbackValue( struct hw_data * pHwData, u16 RegisterNo, u32 RegisterValue,
> -				s8 *pValue, s8 Len)
> +/*
> + * This command will be executed with a user defined value. When it completes,
> + * this value is useful. For example, hal_set_current_channel will use it.
> + * true  : read command process successfully
> + * false : register not support
> + */
> +unsigned char Wb35Reg_WriteWithCallbackValue(struct hw_data *pHwData,
> +						u16 RegisterNo,
> +						u32 RegisterValue,
> +						s8 *pValue,
> +						s8 Len)
>  {
> -	struct wb35_reg *reg = &pHwData->reg;
> -	struct usb_ctrlrequest *dr;
> -	struct urb	*urb = NULL;
> -	struct wb35_reg_queue *reg_queue = NULL;
> -	u16		UrbSize;
> +	struct wb35_reg		*reg = &pHwData->reg;
> +	struct usb_ctrlrequest	*dr;
> +	struct urb		*urb = NULL;
> +	struct wb35_reg_queue	*reg_queue = NULL;
> +	u16			UrbSize;
>  
> -	// Module shutdown
> +	/* Module shutdown */
>  	if (pHwData->SurpriseRemove)
>  		return false;
>  
> -	// update the register by send urb request------------------------------------
> +	/* update the register by send urb request */
>  	UrbSize = sizeof(struct wb35_reg_queue) + sizeof(struct usb_ctrlrequest);
>  	reg_queue = kzalloc(UrbSize, GFP_ATOMIC);
>  	urb = usb_alloc_urb(0, GFP_ATOMIC);
>  	if (urb && reg_queue) {
> -		reg_queue->DIRECT = 1;// burst write register
> +		reg_queue->DIRECT = 1; /* burst write register */
>  		reg_queue->INDEX = RegisterNo;
>  		reg_queue->VALUE = cpu_to_le32(RegisterValue);
> -		//NOTE : Users must guarantee the size of value will not exceed the buffer size.
> +		/* NOTE : Users must guarantee the size of value will not exceed the buffer size. */
>  		memcpy(reg_queue->RESERVED, pValue, Len);
>  		reg_queue->RESERVED_VALID = true;
>  		dr = (struct usb_ctrlrequest *)((u8 *)reg_queue + sizeof(struct wb35_reg_queue));
> -		dr->bRequestType = USB_TYPE_VENDOR|USB_DIR_OUT |USB_RECIP_DEVICE;
> -		dr->bRequest = 0x03; // USB or vendor-defined request code, burst mode
> +		dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE;
> +		dr->bRequest = 0x03; /* USB or vendor-defined request code, burst mode */
>  		dr->wValue = cpu_to_le16(0x0);
>  		dr->wIndex = cpu_to_le16(RegisterNo);
>  		dr->wLength = cpu_to_le16(4);
>  
> -		// Enter the sending queue
> +		/* Enter the sending queue */
>  		reg_queue->Next = NULL;
>  		reg_queue->pUsbReq = dr;
>  		reg_queue->urb = urb;
> -		spin_lock_irq (&reg->EP0VM_spin_lock );
> -		if( reg->reg_first == NULL )
> +		spin_lock_irq(&reg->EP0VM_spin_lock);
> +		if (reg->reg_first == NULL)
>  			reg->reg_first = reg_queue;
>  		else
>  			reg->reg_last->Next = reg_queue;
>  		reg->reg_last = reg_queue;
>  
> -		spin_unlock_irq ( &reg->EP0VM_spin_lock );
> +		spin_unlock_irq(&reg->EP0VM_spin_lock);
>  
> -		// Start EP0VM
> +		/* Start EP0VM */
>  		Wb35Reg_EP0VM_start(pHwData);
>  		return true;
>  	} else {
> @@ -277,115 +280,114 @@ Wb35Reg_WriteWithCallbackValue( struct hw_data * pHwData, u16 RegisterNo, u32 Re
>  	}
>  }
>  
> -// true  : read command process successfully
> -// false : register not support
> -// pRegisterValue : It must be a resident buffer due to asynchronous read register.
> -unsigned char
> -Wb35Reg_ReadSync(  struct hw_data * pHwData,  u16 RegisterNo,   u32 * pRegisterValue )
> +/*
> + * true  : read command process successfully
> + * false : register not support
> + * pRegisterValue : It must be a resident buffer due to
> + *		    asynchronous read register.
> + */
> +unsigned char Wb35Reg_ReadSync(struct hw_data *pHwData, u16 RegisterNo, u32 *pRegisterValue)
>  {
>  	struct wb35_reg *reg = &pHwData->reg;
> -	u32 *	pltmp = pRegisterValue;
> -	int ret = -1;
> +	u32		*pltmp = pRegisterValue;
> +	int		ret = -1;
>  
> -	// Module shutdown
> +	/* Module shutdown */
>  	if (pHwData->SurpriseRemove)
>  		return false;
>  
> -	// Read the register by send usb message------------------------------------
> -
> +	/* Read the register by send usb message */
>  	reg->SyncIoPause = 1;
>  
> -	// 20060717.5 Wait until EP0VM stop
> +	/* Wait until EP0VM stop */
>  	while (reg->EP0vm_state != VM_STOP)
>  		msleep(10);
>  
>  	reg->EP0vm_state = VM_RUNNING;
> -	ret = usb_control_msg( pHwData->WbUsb.udev,
> +	ret = usb_control_msg(pHwData->WbUsb.udev,
>  			       usb_rcvctrlpipe(pHwData->WbUsb.udev, 0),
> -			       0x01, USB_TYPE_VENDOR|USB_RECIP_DEVICE|USB_DIR_IN,
> -			       0x0, RegisterNo, pltmp, 4, HZ*100 );
> +			       0x01, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
> +			       0x0, RegisterNo, pltmp, 4, HZ * 100);
>  
>  	*pRegisterValue = cpu_to_le32(*pltmp);
>  
>  	reg->EP0vm_state = VM_STOP;
>  
> -	Wb35Reg_Update( pHwData, RegisterNo, *pRegisterValue );
> +	Wb35Reg_Update(pHwData, RegisterNo, *pRegisterValue);
>  	reg->SyncIoPause = 0;
>  
> -	Wb35Reg_EP0VM_start( pHwData );
> +	Wb35Reg_EP0VM_start(pHwData);
>  
>  	if (ret < 0) {
> -		#ifdef _PE_REG_DUMP_
> +#ifdef _PE_REG_DUMP_
>  		printk("EP0 Read register usb message sending error\n");
> -		#endif
> -
> -		pHwData->SurpriseRemove = 1; // 20060704.2
> +#endif
> +		pHwData->SurpriseRemove = 1;
>  		return false;
>  	}
> -
>  	return true;
>  }
>  
> -// true  : read command process successfully
> -// false : register not support
> -// pRegisterValue : It must be a resident buffer due to asynchronous read register.
> -unsigned char
> -Wb35Reg_Read(struct hw_data * pHwData, u16 RegisterNo,  u32 * pRegisterValue )
> +/*
> + * true  : read command process successfully
> + * false : register not support
> + * pRegisterValue : It must be a resident buffer due to
> + *		    asynchronous read register.
> + */
> +unsigned char Wb35Reg_Read(struct hw_data *pHwData, u16 RegisterNo, u32 *pRegisterValue)
>  {
> -	struct wb35_reg *reg = &pHwData->reg;
> -	struct usb_ctrlrequest * dr;
> -	struct urb	*urb;
> -	struct wb35_reg_queue *reg_queue;
> -	u16		UrbSize;
> +	struct wb35_reg		*reg = &pHwData->reg;
> +	struct usb_ctrlrequest	*dr;
> +	struct urb		*urb;
> +	struct wb35_reg_queue	*reg_queue;
> +	u16			UrbSize;
>  
> -	// Module shutdown
> +	/* Module shutdown */
>  	if (pHwData->SurpriseRemove)
>  		return false;
>  
> -	// update the variable by send Urb to read register ------------------------------------
> +	/* update the variable by send Urb to read register */
>  	UrbSize = sizeof(struct wb35_reg_queue) + sizeof(struct usb_ctrlrequest);
>  	reg_queue = kzalloc(UrbSize, GFP_ATOMIC);
>  	urb = usb_alloc_urb(0, GFP_ATOMIC);
> -	if( urb && reg_queue )
> -	{
> -		reg_queue->DIRECT = 0;// read register
> +	if (urb && reg_queue) {
> +		reg_queue->DIRECT = 0; /* read register */
>  		reg_queue->INDEX = RegisterNo;
>  		reg_queue->pBuffer = pRegisterValue;
>  		dr = (struct usb_ctrlrequest *)((u8 *)reg_queue + sizeof(struct wb35_reg_queue));
> -		dr->bRequestType = USB_TYPE_VENDOR|USB_RECIP_DEVICE|USB_DIR_IN;
> -		dr->bRequest = 0x01; // USB or vendor-defined request code, burst mode
> +		dr->bRequestType = USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN;
> +		dr->bRequest = 0x01; /* USB or vendor-defined request code, burst mode */
>  		dr->wValue = cpu_to_le16(0x0);
> -		dr->wIndex = cpu_to_le16 (RegisterNo);
> -		dr->wLength = cpu_to_le16 (4);
> +		dr->wIndex = cpu_to_le16(RegisterNo);
> +		dr->wLength = cpu_to_le16(4);
>  
> -		// Enter the sending queue
> +		/* Enter the sending queue */
>  		reg_queue->Next = NULL;
>  		reg_queue->pUsbReq = dr;
>  		reg_queue->urb = urb;
> -		spin_lock_irq ( &reg->EP0VM_spin_lock );
> -		if( reg->reg_first == NULL )
> +		spin_lock_irq(&reg->EP0VM_spin_lock);
> +		if (reg->reg_first == NULL)
>  			reg->reg_first = reg_queue;
>  		else
>  			reg->reg_last->Next = reg_queue;
>  		reg->reg_last = reg_queue;
>  
> -		spin_unlock_irq( &reg->EP0VM_spin_lock );
> +		spin_unlock_irq(&reg->EP0VM_spin_lock);
>  
> -		// Start EP0VM
> -		Wb35Reg_EP0VM_start( pHwData );
> +		/* Start EP0VM */
> +		Wb35Reg_EP0VM_start(pHwData);
>  
>  		return true;
>  	} else {
>  		if (urb)
> -			usb_free_urb( urb );
> +			usb_free_urb(urb);
>  		kfree(reg_queue);
>  		return false;
>  	}
>  }
>  
>  
> -void
> -Wb35Reg_EP0VM_start(  struct hw_data * pHwData )
> +void Wb35Reg_EP0VM_start(struct hw_data *pHwData)
>  {
>  	struct wb35_reg *reg = &pHwData->reg;
>  
> @@ -396,15 +398,14 @@ Wb35Reg_EP0VM_start(  struct hw_data * pHwData )
>  		atomic_dec(&reg->RegFireCount);
>  }
>  
> -void
> -Wb35Reg_EP0VM(struct hw_data * pHwData )
> +void Wb35Reg_EP0VM(struct hw_data *pHwData)
>  {
> -	struct wb35_reg *reg = &pHwData->reg;
> -	struct urb	*urb;
> -	struct usb_ctrlrequest *dr;
> -	u32 *		pBuffer;
> +	struct wb35_reg		*reg = &pHwData->reg;
> +	struct urb		*urb;
> +	struct usb_ctrlrequest	*dr;
> +	u32			*pBuffer;
>  	int			ret = -1;
> -	struct wb35_reg_queue *reg_queue;
> +	struct wb35_reg_queue	*reg_queue;
>  
>  
>  	if (reg->SyncIoPause)
> @@ -413,27 +414,27 @@ Wb35Reg_EP0VM(struct hw_data * pHwData )
>  	if (pHwData->SurpriseRemove)
>  		goto cleanup;
>  
> -	// Get the register data and send to USB through Irp
> -	spin_lock_irq( &reg->EP0VM_spin_lock );
> +	/* Get the register data and send to USB through Irp */
> +	spin_lock_irq(&reg->EP0VM_spin_lock);
>  	reg_queue = reg->reg_first;
> -	spin_unlock_irq( &reg->EP0VM_spin_lock );
> +	spin_unlock_irq(&reg->EP0VM_spin_lock);
>  
>  	if (!reg_queue)
>  		goto cleanup;
>  
> -	// Get an Urb, send it
> +	/* Get an Urb, send it */
>  	urb = (struct urb *)reg_queue->urb;
>  
>  	dr = reg_queue->pUsbReq;
>  	urb = reg_queue->urb;
>  	pBuffer = reg_queue->pBuffer;
> -	if (reg_queue->DIRECT == 1) // output
> +	if (reg_queue->DIRECT == 1) /* output */
>  		pBuffer = &reg_queue->VALUE;
>  
> -	usb_fill_control_urb( urb, pHwData->WbUsb.udev,
> -			      REG_DIRECTION(pHwData->WbUsb.udev,reg_queue),
> -			      (u8 *)dr,pBuffer,cpu_to_le16(dr->wLength),
> -			      Wb35Reg_EP0VM_complete, (void*)pHwData);
> +	usb_fill_control_urb(urb, pHwData->WbUsb.udev,
> +			      REG_DIRECTION(pHwData->WbUsb.udev, reg_queue),
> +			      (u8 *)dr, pBuffer, cpu_to_le16(dr->wLength),
> +			      Wb35Reg_EP0VM_complete, (void *)pHwData);
>  
>  	reg->EP0vm_state = VM_RUNNING;
>  
> @@ -445,7 +446,6 @@ Wb35Reg_EP0VM(struct hw_data * pHwData )
>  #endif
>  		goto cleanup;
>  	}
> -
>  	return;
>  
>   cleanup:
> @@ -454,29 +454,28 @@ Wb35Reg_EP0VM(struct hw_data * pHwData )
>  }
>  
>  
> -void
> -Wb35Reg_EP0VM_complete(struct urb *urb)
> +void Wb35Reg_EP0VM_complete(struct urb *urb)
>  {
> -	struct hw_data *  pHwData = (struct hw_data *)urb->context;
> -	struct wb35_reg *reg = &pHwData->reg;
> -	struct wb35_reg_queue *reg_queue;
> +	struct hw_data		*pHwData = (struct hw_data *)urb->context;
> +	struct wb35_reg		*reg = &pHwData->reg;
> +	struct wb35_reg_queue	*reg_queue;
>  
>  
> -	// Variable setting
> +	/* Variable setting */
>  	reg->EP0vm_state = VM_COMPLETED;
>  	reg->EP0VM_status = urb->status;
>  
> -	if (pHwData->SurpriseRemove) { // Let WbWlanHalt to handle surprise remove
> +	if (pHwData->SurpriseRemove) { /* Let WbWlanHalt to handle surprise remove */
>  		reg->EP0vm_state = VM_STOP;
>  		atomic_dec(&reg->RegFireCount);
>  	} else {
> -		// Complete to send, remove the URB from the first
> -		spin_lock_irq( &reg->EP0VM_spin_lock );
> +		/* Complete to send, remove the URB from the first */
> +		spin_lock_irq(&reg->EP0VM_spin_lock);
>  		reg_queue = reg->reg_first;
>  		if (reg_queue == reg->reg_last)
>  			reg->reg_last = NULL;
>  		reg->reg_first = reg->reg_first->Next;
> -		spin_unlock_irq( &reg->EP0VM_spin_lock );
> +		spin_unlock_irq(&reg->EP0VM_spin_lock);
>  
>  		if (reg->EP0VM_status) {
>  #ifdef _PE_REG_DUMP_
> @@ -485,37 +484,35 @@ Wb35Reg_EP0VM_complete(struct urb *urb)
>  			reg->EP0vm_state = VM_STOP;
>  			pHwData->SurpriseRemove = 1;
>  		} else {
> -			// Success. Update the result
> +			/* Success. Update the result */
>  
> -			// Start the next send
> +			/* Start the next send */
>  			Wb35Reg_EP0VM(pHwData);
>  		}
>  
> -   		kfree(reg_queue);
> +		kfree(reg_queue);
>  	}
>  
>  	usb_free_urb(urb);
>  }
>  
>  
> -void
> -Wb35Reg_destroy(struct hw_data * pHwData)
> +void Wb35Reg_destroy(struct hw_data *pHwData)
>  {
> -	struct wb35_reg *reg = &pHwData->reg;
> -	struct urb	*urb;
> -	struct wb35_reg_queue *reg_queue;
> -
> +	struct wb35_reg		*reg = &pHwData->reg;
> +	struct urb		*urb;
> +	struct wb35_reg_queue	*reg_queue;
>  
>  	Uxx_power_off_procedure(pHwData);
>  
> -	// Wait for Reg operation completed
> +	/* Wait for Reg operation completed */
>  	do {
> -		msleep(10); // Delay for waiting function enter 940623.1.a
> +		msleep(10); /* Delay for waiting function enter */
>  	} while (reg->EP0vm_state != VM_STOP);
> -	msleep(10);  // Delay for waiting function enter 940623.1.b
> +	msleep(10);  /* Delay for waiting function enter */
>  
> -	// Release all the data in RegQueue
> -	spin_lock_irq( &reg->EP0VM_spin_lock );
> +	/* Release all the data in RegQueue */
> +	spin_lock_irq(&reg->EP0VM_spin_lock);
>  	reg_queue = reg->reg_first;
>  	while (reg_queue) {
>  		if (reg_queue == reg->reg_last)
> @@ -523,84 +520,88 @@ Wb35Reg_destroy(struct hw_data * pHwData)
>  		reg->reg_first = reg->reg_first->Next;
>  
>  		urb = reg_queue->urb;
> -		spin_unlock_irq( &reg->EP0VM_spin_lock );
> +		spin_unlock_irq(&reg->EP0VM_spin_lock);
>  		if (urb) {
>  			usb_free_urb(urb);
>  			kfree(reg_queue);
>  		} else {
> -			#ifdef _PE_REG_DUMP_
> +#ifdef _PE_REG_DUMP_
>  			printk("EP0 queue release error\n");
> -			#endif
> +#endif
>  		}
> -		spin_lock_irq( &reg->EP0VM_spin_lock );
> +		spin_lock_irq(&reg->EP0VM_spin_lock);
>  
>  		reg_queue = reg->reg_first;
>  	}
> -	spin_unlock_irq( &reg->EP0VM_spin_lock );
> +	spin_unlock_irq(&reg->EP0VM_spin_lock);
>  }
>  
> -//====================================================================================
> -// The function can be run in passive-level only.
> -//====================================================================================
> -unsigned char Wb35Reg_initial(struct hw_data * pHwData)
> +/*
> + * =======================================================================
> + * The function can be run in passive-level only.
> + * =========================================================================
> + */
> +unsigned char Wb35Reg_initial(struct hw_data *pHwData)
>  {
> -	struct wb35_reg *reg=&pHwData->reg;
> +	struct wb35_reg *reg = &pHwData->reg;
>  	u32 ltmp;
>  	u32 SoftwareSet, VCO_trim, TxVga, Region_ScanInterval;
>  
> -	// Spin lock is acquired for read and write IRP command
> -	spin_lock_init( &reg->EP0VM_spin_lock );
> -
> -	// Getting RF module type from EEPROM ------------------------------------
> -	Wb35Reg_WriteSync( pHwData, 0x03b4, 0x080d0000 ); // Start EEPROM access + Read + address(0x0d)
> -	Wb35Reg_ReadSync( pHwData, 0x03b4, &ltmp );
> -
> -	//Update RF module type and determine the PHY type by inf or EEPROM
> -	reg->EEPROMPhyType = (u8)( ltmp & 0xff );
> -	// 0 V MAX2825, 1 V MAX2827, 2 V MAX2828, 3 V MAX2829
> -	// 16V AL2230, 17 - AL7230, 18 - AL2230S
> -	// 32 Reserved
> -	// 33 - W89RF242(TxVGA 0~19), 34 - W89RF242(TxVGA 0~34)
> +	/* Spin lock is acquired for read and write IRP command */
> +	spin_lock_init(&reg->EP0VM_spin_lock);
> +
> +	/* Getting RF module type from EEPROM */
> +	Wb35Reg_WriteSync(pHwData, 0x03b4, 0x080d0000); /* Start EEPROM access + Read + address(0x0d) */
> +	Wb35Reg_ReadSync(pHwData, 0x03b4, &ltmp);
> +
> +	/* Update RF module type and determine the PHY type by inf or EEPROM */
> +	reg->EEPROMPhyType = (u8)(ltmp & 0xff);
> +	/*
> +	 * 0 V MAX2825, 1 V MAX2827, 2 V MAX2828, 3 V MAX2829
> +	 * 16V AL2230, 17 - AL7230, 18 - AL2230S
> +	 * 32 Reserved
> +	 * 33 - W89RF242(TxVGA 0~19), 34 - W89RF242(TxVGA 0~34)
> +	 */
>  	if (reg->EEPROMPhyType != RF_DECIDE_BY_INF) {
> -		if( (reg->EEPROMPhyType == RF_MAXIM_2825)	||
> +		if ((reg->EEPROMPhyType == RF_MAXIM_2825)	||
>  			(reg->EEPROMPhyType == RF_MAXIM_2827)	||
>  			(reg->EEPROMPhyType == RF_MAXIM_2828)	||
>  			(reg->EEPROMPhyType == RF_MAXIM_2829)	||
>  			(reg->EEPROMPhyType == RF_MAXIM_V1)	||
>  			(reg->EEPROMPhyType == RF_AIROHA_2230)	||
> -			(reg->EEPROMPhyType == RF_AIROHA_2230S)    ||
> +			(reg->EEPROMPhyType == RF_AIROHA_2230S)	||
>  			(reg->EEPROMPhyType == RF_AIROHA_7230)	||
> -			(reg->EEPROMPhyType == RF_WB_242)		||
> +			(reg->EEPROMPhyType == RF_WB_242)	||
>  			(reg->EEPROMPhyType == RF_WB_242_1))
>  			pHwData->phy_type = reg->EEPROMPhyType;
>  	}
>  
> -	// Power On procedure running. The relative parameter will be set according to phy_type
> -	Uxx_power_on_procedure( pHwData );
> +	/* Power On procedure running. The relative parameter will be set according to phy_type */
> +	Uxx_power_on_procedure(pHwData);
>  
> -	// Reading MAC address
> -	Uxx_ReadEthernetAddress( pHwData );
> +	/* Reading MAC address */
> +	Uxx_ReadEthernetAddress(pHwData);
>  
> -	// Read VCO trim for RF parameter
> -	Wb35Reg_WriteSync( pHwData, 0x03b4, 0x08200000 );
> -	Wb35Reg_ReadSync( pHwData, 0x03b4, &VCO_trim );
> +	/* Read VCO trim for RF parameter */
> +	Wb35Reg_WriteSync(pHwData, 0x03b4, 0x08200000);
> +	Wb35Reg_ReadSync(pHwData, 0x03b4, &VCO_trim);
>  
> -	// Read Antenna On/Off of software flag
> -	Wb35Reg_WriteSync( pHwData, 0x03b4, 0x08210000 );
> -	Wb35Reg_ReadSync( pHwData, 0x03b4, &SoftwareSet );
> +	/* Read Antenna On/Off of software flag */
> +	Wb35Reg_WriteSync(pHwData, 0x03b4, 0x08210000);
> +	Wb35Reg_ReadSync(pHwData, 0x03b4, &SoftwareSet);
>  
> -	// Read TXVGA
> -	Wb35Reg_WriteSync( pHwData, 0x03b4, 0x08100000 );
> -	Wb35Reg_ReadSync( pHwData, 0x03b4, &TxVga );
> +	/* Read TXVGA */
> +	Wb35Reg_WriteSync(pHwData, 0x03b4, 0x08100000);
> +	Wb35Reg_ReadSync(pHwData, 0x03b4, &TxVga);
>  
> -	// Get Scan interval setting from EEPROM offset 0x1c
> -	Wb35Reg_WriteSync( pHwData, 0x03b4, 0x081d0000 );
> -	Wb35Reg_ReadSync( pHwData, 0x03b4, &Region_ScanInterval );
> +	/* Get Scan interval setting from EEPROM offset 0x1c */
> +	Wb35Reg_WriteSync(pHwData, 0x03b4, 0x081d0000);
> +	Wb35Reg_ReadSync(pHwData, 0x03b4, &Region_ScanInterval);
>  
> -	// Update Ethernet address
> -	memcpy( pHwData->CurrentMacAddress, pHwData->PermanentMacAddress, ETH_ALEN );
> +	/* Update Ethernet address */
> +	memcpy(pHwData->CurrentMacAddress, pHwData->PermanentMacAddress, ETH_ALEN);
>  
> -	// Update software variable
> +	/* Update software variable */
>  	pHwData->SoftwareSet = (u16)(SoftwareSet & 0xffff);
>  	TxVga &= 0x000000ff;
>  	pHwData->PowerIndexFromEEPROM = (u8)TxVga;
> @@ -608,22 +609,22 @@ unsigned char Wb35Reg_initial(struct hw_data * pHwData)
>  	if (pHwData->VCO_trim == 0xff)
>  		pHwData->VCO_trim = 0x28;
>  
> -	reg->EEPROMRegion = (u8)(Region_ScanInterval>>8); // 20060720
> -	if( reg->EEPROMRegion<1 || reg->EEPROMRegion>6 )
> +	reg->EEPROMRegion = (u8)(Region_ScanInterval >> 8);
> +	if (reg->EEPROMRegion < 1 || reg->EEPROMRegion > 6)
>  		reg->EEPROMRegion = REGION_AUTO;
>  
> -	//For Get Tx VGA from EEPROM 20060315.5 move here
> -	GetTxVgaFromEEPROM( pHwData );
> +	/* For Get Tx VGA from EEPROM */
> +	GetTxVgaFromEEPROM(pHwData);
>  
> -	// Set Scan Interval
> +	/* Set Scan Interval */
>  	pHwData->Scan_Interval = (u8)(Region_ScanInterval & 0xff) * 10;
> -	if ((pHwData->Scan_Interval == 2550) || (pHwData->Scan_Interval < 10)) // Is default setting 0xff * 10
> +	if ((pHwData->Scan_Interval == 2550) || (pHwData->Scan_Interval < 10)) /* Is default setting 0xff * 10 */
>  		pHwData->Scan_Interval = SCAN_MAX_CHNL_TIME;
>  
> -	// Initial register
> +	/* Initial register */
>  	RFSynthesizer_initial(pHwData);
>  
> -	BBProcessor_initial(pHwData); // Async write, must wait until complete
> +	BBProcessor_initial(pHwData); /* Async write, must wait until complete */
>  
>  	Wb35Reg_phy_calibration(pHwData);
>  
> @@ -633,113 +634,104 @@ unsigned char Wb35Reg_initial(struct hw_data * pHwData)
>  	if (pHwData->SurpriseRemove)
>  		return false;
>  	else
> -		return true; // Initial fail
> +		return true; /* Initial fail */
>  }
>  
> -//===================================================================================
> -//  CardComputeCrc --
> -//
> -//  Description:
> -//    Runs the AUTODIN II CRC algorithm on buffer Buffer of length, Length.
> -//
> -//  Arguments:
> -//    Buffer - the input buffer
> -//    Length - the length of Buffer
> -//
> -//  Return Value:
> -//    The 32-bit CRC value.
> -//
> -//  Note:
> -//    This is adapted from the comments in the assembly language
> -//    version in _GENREQ.ASM of the DWB NE1000/2000 driver.
> -//==================================================================================
> -u32
> -CardComputeCrc(u8 * Buffer, u32 Length)
> +/*
> + * ================================================================
> + *  CardComputeCrc --
> + *
> + *  Description:
> + *    Runs the AUTODIN II CRC algorithm on buffer Buffer of length, Length.
> + *
> + *  Arguments:
> + *    Buffer - the input buffer
> + *    Length - the length of Buffer
> + *
> + *  Return Value:
> + *    The 32-bit CRC value.
> + * ===================================================================
> + */
> +u32 CardComputeCrc(u8 *Buffer, u32 Length)
>  {
> -    u32 Crc, Carry;
> -    u32  i, j;
> -    u8 CurByte;
> -
> -    Crc = 0xffffffff;
> -
> -    for (i = 0; i < Length; i++) {
> -
> -        CurByte = Buffer[i];
> -
> -        for (j = 0; j < 8; j++) {
> -
> -            Carry     = ((Crc & 0x80000000) ? 1 : 0) ^ (CurByte & 0x01);
> -            Crc     <<= 1;
> -            CurByte >>= 1;
> -
> -            if (Carry) {
> -                Crc =(Crc ^ 0x04c11db6) | Carry;
> -            }
> -        }
> -    }
> -
> -    return Crc;
> +	u32	Crc, Carry;
> +	u32	i, j;
> +	u8	CurByte;
> +
> +	Crc = 0xffffffff;
> +
> +	for (i = 0; i < Length; i++) {
> +		CurByte = Buffer[i];
> +		for (j = 0; j < 8; j++) {
> +			Carry = ((Crc & 0x80000000) ? 1 : 0) ^ (CurByte & 0x01);
> +			Crc <<= 1;
> +			CurByte >>= 1;
> +			if (Carry)
> +				Crc = (Crc ^ 0x04c11db6) | Carry;
> +		}
> +	}
> +	return Crc;
>  }
>  
>  
> -//==================================================================
> -// BitReverse --
> -//   Reverse the bits in the input argument, dwData, which is
> -//   regarded as a string of bits with the length, DataLength.
> -//
> -// Arguments:
> -//   dwData     :
> -//   DataLength :
> -//
> -// Return:
> -//   The converted value.
> -//==================================================================
> -u32 BitReverse( u32 dwData, u32 DataLength)
> +/*
> + * ==================================================================
> + * BitReverse --
> + *   Reverse the bits in the input argument, dwData, which is
> + *   regarded as a string of bits with the length, DataLength.
> + *
> + * Arguments:
> + *   dwData     :
> + *   DataLength :
> + *
> + * Return:
> + *   The converted value.
> + * ==================================================================
> + */
> +u32 BitReverse(u32 dwData, u32 DataLength)
>  {
> -	u32   HalfLength, i, j;
> -	u32   BitA, BitB;
> +	u32	HalfLength, i, j;
> +	u32	BitA, BitB;
>  
> -	if ( DataLength <= 0)       return 0;   // No conversion is done.
> +	if (DataLength <= 0)
> +		return 0;	/* No conversion is done. */
>  	dwData = dwData & (0xffffffff >> (32 - DataLength));
>  
>  	HalfLength = DataLength / 2;
> -	for ( i = 0, j = DataLength-1 ; i < HalfLength; i++, j--)
> -	{
> -		BitA = GetBit( dwData, i);
> -		BitB = GetBit( dwData, j);
> +	for (i = 0, j = DataLength - 1; i < HalfLength; i++, j--) {
> +		BitA = GetBit(dwData, i);
> +		BitB = GetBit(dwData, j);
>  		if (BitA && !BitB) {
> -			dwData = ClearBit( dwData, i);
> -			dwData = SetBit( dwData, j);
> +			dwData = ClearBit(dwData, i);
> +			dwData = SetBit(dwData, j);
>  		} else if (!BitA && BitB) {
> -			dwData = SetBit( dwData, i);
> -			dwData = ClearBit( dwData, j);
> -		} else
> -		{
> -			// Do nothing since these two bits are of the save values.
> +			dwData = SetBit(dwData, i);
> +			dwData = ClearBit(dwData, j);
> +		} else {
> +			/* Do nothing since these two bits are of the save values. */
>  		}
>  	}
> -
>  	return dwData;
>  }
>  
> -void Wb35Reg_phy_calibration(  struct hw_data * pHwData )
> +void Wb35Reg_phy_calibration(struct hw_data *pHwData)
>  {
> -	u32 BB3c, BB54;
> +	u32	BB3c, BB54;
>  
>  	if ((pHwData->phy_type == RF_WB_242) ||
>  		(pHwData->phy_type == RF_WB_242_1)) {
> -		phy_calibration_winbond ( pHwData, 2412 ); // Sync operation
> -		Wb35Reg_ReadSync( pHwData, 0x103c, &BB3c );
> -		Wb35Reg_ReadSync( pHwData, 0x1054, &BB54 );
> +		phy_calibration_winbond(pHwData, 2412); /* Sync operation */
> +		Wb35Reg_ReadSync(pHwData, 0x103c, &BB3c);
> +		Wb35Reg_ReadSync(pHwData, 0x1054, &BB54);
>  
>  		pHwData->BB3c_cal = BB3c;
>  		pHwData->BB54_cal = BB54;
>  
>  		RFSynthesizer_initial(pHwData);
> -		BBProcessor_initial(pHwData); // Async operation
> +		BBProcessor_initial(pHwData); /* Async operation */
>  
> -		Wb35Reg_WriteSync( pHwData, 0x103c, BB3c );
> -		Wb35Reg_WriteSync( pHwData, 0x1054, BB54 );
> +		Wb35Reg_WriteSync(pHwData, 0x103c, BB3c);
> +		Wb35Reg_WriteSync(pHwData, 0x1054, BB54);
>  	}
>  }
>  
> -- 
> 1.7.0.3
> 
> --
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  reply	other threads:[~2010-03-25 14:26 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-25 13:44 [PATCH] staging: winbond: wb35reg.c Coding style fixes v2 Lars Lindley
2010-03-25 14:26 ` Dan Carpenter [this message]
2010-03-25 14:33 ` Pavel Machek

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