redonkable/remarkable-linux
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usb: renesas_usbhs: tifyup packet start timing

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packet transfer timing are controlled in mod_gadget on current renesas_usbhs,
and this style will be imitated on mod_host.
But it need not be managed with host/gadget if it is general transfer.
By this patch, the packet transfer timing is managed in fifo.c

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kuninori Morimoto 2011-06-06 14:18:54 +09:00 committed by Greg Kroah-Hartman
parent d77e3f4e17
commit 0432eed008
2 changed files with 11 additions and 17 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/usb/renesas_usbhs/fifo.c
View file

@ -74,6 +74,8 @@ void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
usbhs_unlock(priv, flags);
/******************** spin unlock ******************/
usbhs_pkt_start(pipe);
}
static void __usbhsf_pkt_del(struct usbhs_pkt *pkt)
@ -148,8 +150,10 @@ __usbhs_pkt_handler_end:
usbhs_unlock(priv, flags);
/******************** spin unlock ******************/
if (is_done)
if (is_done) {
info->done(pkt);
usbhs_pkt_start(pipe);
}
return ret;
}

22
drivers/usb/renesas_usbhs/mod_gadget.c
View file

@ -125,23 +125,16 @@ static void usbhsg_queue_push(struct usbhsg_uep *uep,
struct usbhs_pkt *pkt = usbhsg_ureq_to_pkt(ureq);
struct usb_request *req = &ureq->req;
usbhs_pkt_push(pipe, pkt, uep->handler,
req->buf, req->length, req->zero);
req->actual = 0;
req->status = -EINPROGRESS;
usbhs_pkt_push(pipe, pkt, uep->handler,
req->buf, req->length, req->zero);
dev_dbg(dev, "pipe %d : queue push (%d)\n",
usbhs_pipe_number(pipe),
req->length);
}
static void usbhsg_queue_start(struct usbhsg_uep *uep)
{
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
usbhs_pkt_start(pipe);
}
static void usbhsg_queue_pop(struct usbhsg_uep *uep,
struct usbhsg_request *ureq,
int status)
@ -154,10 +147,6 @@ static void usbhsg_queue_pop(struct usbhsg_uep *uep,
ureq->req.status = status;
ureq->req.complete(&uep->ep, &ureq->req);
/* more request ? */
if (0 == status)
usbhsg_queue_start(uep);
}
static void usbhsg_queue_done(struct usbhs_pkt *pkt)
@ -222,6 +211,7 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv,
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
struct usbhsg_uep *uep;
struct usbhs_pipe *pipe;
int recip = ctrl->bRequestType & USB_RECIP_MASK;
int nth = le16_to_cpu(ctrl->wIndex) & USB_ENDPOINT_NUMBER_MASK;
int ret;
@ -230,7 +220,8 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv,
char *msg;
uep = usbhsg_gpriv_to_nth_uep(gpriv, nth);
if (!usbhsg_uep_to_pipe(uep)) {
pipe = usbhsg_uep_to_pipe(uep);
if (!pipe) {
dev_err(dev, "wrong recip request\n");
ret = -EINVAL;
goto usbhsg_recip_run_handle_end;
@ -268,7 +259,7 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv,
}
usbhsg_recip_run_handle_end:
usbhsg_queue_start(uep);
usbhs_pkt_start(pipe);
return ret;
}
@ -470,7 +461,6 @@ static int usbhsg_ep_queue(struct usb_ep *ep, struct usb_request *req,
return -ESHUTDOWN;
usbhsg_queue_push(uep, ureq);
usbhsg_queue_start(uep);
return 0;
}