Re: [PATCH v2] USB: gadget: s3c-hsotg: add isochronous transferssupport

From: Felipe Balbi
Date: Tue Oct 01 2013 - 10:45:49 EST


Hi,

On Tue, Sep 24, 2013 at 11:47:16AM +0200, Robert Baldyga wrote:
> Hello,
>
> This is update for my proposal for isochronous transfers support in s3c-hsotg
> driver. I've fixed issuses pointed by Bartlomiej Zolnierkiewicz. For more
> information, please check the change log at the end of the mail.

this shouldn't be part of commit log.

> This patch adds isochronous transfer support. It adds few modifications:
> - Modify s3c_hsotg_write_fifo() function. It actually calculates transfer
> size, taking into account Multi Count value, which indicates number of
> transactions per microframe.
> - Fix s3c_hsotg_start_req() function by setting number of packets to Multi
> Count field in DIEPTSIZ register for isochronous endpoints.
> - Fix s3c_hsotg_set_ep_maxpacket() function. Field wMaxPacketSize of endpoint
> descriptor is now splitted into maximum packet size value and number of
> additional transaction per microframe.
> - Modify s3c_hsotg_epint() function. Some interrupts are ignored for
> isochronous endpoints, (e.g. INTknTXFEmpMsk) becouse isochronous request is
> always transfered in single transaction, which ends with XferCompl interrupt.
> Add Odd/Even microframe toggle to allow data transfering in each microframe.
> - Fix s3c_hsotg_ep_enable() function by supporting isochronous endpoint type.

you're doing way too many things in a single patch.

> Signed-off-by: Robert Baldyga <r.baldyga@xxxxxxxxxxx>
> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
>
> Changelog:
>
> v2:
> - moved bugfix affecting to the other features to separated patch
> - changed conditions order in request length checking in s3c_hsotg_start_req
> function, as Bartlomiej Zolnierkiewicz suggested
> - fixed typos
>
> v1: https://lkml.org/lkml/2013/9/23/72
> - initial proposal

changelog sould be after tearline (---) below.

--
balbi

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