RE: [PATCH] Bluetooth: Ath3k keeps same PID/VID after downloading the patch and radio table

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Hi Marcel:

> please fix the coding style. It is if[space](.
Okay, I see.

> I would say something similar in style
> to what I have done for the older CSR chips. See workaround above.
> And on that note, you could use data->udev to get the usb_device
> struct ;)
As to this point,  since now we are not using the btusb to download the patch and radio table,
 I think we do not need to alloc the data struct and use data->udev before the workaround.  
So I'll still keep it was.  How do you think it ?


Thank you very much !

Best Regards,
Steven,


> -----Original Message-----
> From: Marcel Holtmann [mailto:marcel@xxxxxxxxxxxx]
> Sent: Wednesday, June 29, 2011 8:51 AM
> To: Li, Steven
> Cc: linux-bluetooth@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH] Bluetooth: Ath3k keeps same PID/VID after
> downloading the patch and radio table
> 
> Hi Steven,
> 
> > The new Ath3k needs to download patch and radio table,
> > and it keeps same PID/VID even after downloading the patch and radio
> table.
> > This patch is to use the bcdDevice (Device Release Number) to judge
> whether the
> > chip has been patched or not. The init bcdDevice value of the chip is 0x0001,
> > this value increases after patch and radio table downloading.
> >
> > Signed-off-by: Steven.Li <yongli@xxxxxxxxxxxxxxxx>
> > ---
> >  drivers/bluetooth/ath3k.c |    3 +++
> >  drivers/bluetooth/btusb.c |    9 ++++++++-
> >  2 files changed, 11 insertions(+), 1 deletions(-)
> >
> > diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
> > index 6bacef3..7ae1098 100644
> > --- a/drivers/bluetooth/ath3k.c
> > +++ b/drivers/bluetooth/ath3k.c
> > @@ -375,6 +375,9 @@ static int ath3k_probe(struct usb_interface *intf,
> >
> >  	/* load patch and sysconfig files for AR3012 */
> >  	if (id->driver_info & BTUSB_ATH3012) {
> > +		if(le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
> > +			return -ENODEV;
> > +
> 
> please fix the coding style. It is if[space](.
> 
> Also you might wanna put a comment on top of this bcdDevice check and
> mention what it actually does.
> 
> >  		ret = ath3k_load_patch(udev);
> >  		if (ret < 0) {
> >  			BT_ERR("Loading patch file failed");
> > diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> > index c2de895..9d01e25 100644
> > --- a/drivers/bluetooth/btusb.c
> > +++ b/drivers/bluetooth/btusb.c
> > @@ -54,6 +54,7 @@ static struct usb_driver btusb_driver;
> >  #define BTUSB_BCM92035		0x10
> >  #define BTUSB_BROKEN_ISOC	0x20
> >  #define BTUSB_WRONG_SCO_MTU	0x40
> > +#define BTUSB_ATH3012		0x80
> >
> >  static struct usb_device_id btusb_table[] = {
> >  	/* Generic Bluetooth USB device */
> > @@ -110,7 +111,7 @@ static struct usb_device_id blacklist_table[] = {
> >  	{ USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
> >
> >  	/* Atheros 3012 with sflash firmware */
> > -	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_IGNORE },
> > +	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
> >
> >  	/* Atheros AR5BBU12 with sflash firmware */
> >  	{ USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
> > @@ -914,6 +915,12 @@ static int btusb_probe(struct usb_interface *intf,
> >  	if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
> >  		return -ENODEV;
> >
> > +	if (id->driver_info & BTUSB_ATH3012) {
> > +		struct usb_device *udev = interface_to_usbdev(intf);
> > +		if(le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
> > +			return -ENODEV;
> > +	}
> 
> Coding style fix as well please. I would say something similar in style
> to what I have done for the older CSR chips. See workaround above.
> 
> And on that note, you could use data->udev to get the usb_device
> struct ;)
> 
> Regards
> 
> Marcel
> 

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