Sergei,
On Tue, Aug 12, 2014 at 12:10 PM, Sergei Shtylyov
<sergei.shtylyov@xxxxxxxxxxxxxxxxxx> wrote:
> Hello.
>
>
> On 08/12/2014 08:46 PM, Bin Liu wrote:
>
>> CPPI TX does not transmit ZLP for TX transfers which
>> - transfer size is multiple of EP packet size,
>> - and URB_ZERO_PACKET is set in urb->transfer_flags.
>
>
>> The fix is transmitting the ZLP using PIO mode after the CPPI TX is
>> done.
>
>
>> Validated using the following usbtest write case for MUSB host mode.
>
>
>> # testusb -t1 -c1
>
>
>> Signed-off-by: Bin Liu <b-liu@xxxxxx>
>> ---
>> drivers/usb/musb/musb_cppi41.c | 15 +++++++++++++--
>> 1 file changed, 13 insertions(+), 2 deletions(-)
>
>
>> diff --git a/drivers/usb/musb/musb_cppi41.c
>> b/drivers/usb/musb/musb_cppi41.c
>> index 5989def..e9a0e54 100644
>> --- a/drivers/usb/musb/musb_cppi41.c
>> +++ b/drivers/usb/musb/musb_cppi41.c
>> @@ -39,6 +39,7 @@ struct cppi41_dma_channel {
>> u32 transferred;
>> u32 packet_sz;
>> struct list_head tx_check;
>> + u32 tx_zlp;
>
>
> Why not *bool"?
Will fix it. I am not used to use 'bool', so...
>
> WBR, Sergei
>
>
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