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usb: wusbcore: rename fields in struct wahc 

Rename xfer_result to dti_buf and xfer_result_size to dti_buf_size in
struct wahc.  The dti buffer will also be used for isochronous status
packets once isochronous transfers are supported.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Pugliese 2013-09-26 10:49:41 -05:00 committed by Greg Kroah-Hartman
parent 09d94cbd59
commit 0367eef281
3 changed files with 18 additions and 18 deletions
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14
drivers/usb/wusbcore/wa-hc.c
View File

@ -44,11 +44,11 @@ int wa_create(struct wahc *wa, struct usb_interface *iface)
/* Fill up Data Transfer EP pointers */
wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc;
wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc;
wa->xfer_result_size = usb_endpoint_maxp(wa->dti_epd);
wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL);
if (wa->xfer_result == NULL) {
wa->dti_buf_size = usb_endpoint_maxp(wa->dti_epd);
wa->dti_buf = kmalloc(wa->dti_buf_size, GFP_KERNEL);
if (wa->dti_buf == NULL) {
result = -ENOMEM;
goto error_xfer_result_alloc;
goto error_dti_buf_alloc;
}
result = wa_nep_create(wa, iface);
if (result < 0) {
@ -59,8 +59,8 @@ int wa_create(struct wahc *wa, struct usb_interface *iface)
return 0;
error_nep_create:
kfree(wa->xfer_result);
error_xfer_result_alloc:
kfree(wa->dti_buf);
error_dti_buf_alloc:
wa_rpipes_destroy(wa);
error_rpipes_create:
return result;
@ -76,7 +76,7 @@ void __wa_destroy(struct wahc *wa)
usb_kill_urb(wa->buf_in_urb);
usb_put_urb(wa->buf_in_urb);
}
kfree(wa->xfer_result);
kfree(wa->dti_buf);
wa_nep_destroy(wa);
wa_rpipes_destroy(wa);
}

4
drivers/usb/wusbcore/wa-hc.h
View File

@ -184,8 +184,8 @@ struct wahc {
struct urb *dti_urb; /* URB for reading xfer results */
struct urb *buf_in_urb; /* URB for reading data in */
struct edc dti_edc; /* DTI error density counter */
struct wa_xfer_result *xfer_result; /* real size = dti_ep maxpktsize */
size_t xfer_result_size;
void *dti_buf;
size_t dti_buf_size;
s32 status; /* For reading status */

18
drivers/usb/wusbcore/wa-xfer.c
View File

@ -1418,7 +1418,8 @@ static int wa_xfer_status_to_errno(u8 status)
*
* FIXME: this function needs to be broken up in parts
*/
static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer)
static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer,
struct wa_xfer_result *xfer_result)
{
int result;
struct device *dev = &wa->usb_iface->dev;
@ -1426,8 +1427,7 @@ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer)
u8 seg_idx;
struct wa_seg *seg;
struct wa_rpipe *rpipe;
struct wa_xfer_result *xfer_result = wa->xfer_result;
u8 done = 0;
unsigned done = 0;
u8 usb_status;
unsigned rpipe_ready = 0;
@ -1687,7 +1687,7 @@ static void wa_buf_in_cb(struct urb *urb)
* We go back to OFF when we detect a ENOENT or ESHUTDOWN (or too many
* errors) in the URBs.
*/
static void wa_xfer_result_cb(struct urb *urb)
static void wa_dti_cb(struct urb *urb)
{
int result;
struct wahc *wa = urb->context;
@ -1709,7 +1709,7 @@ static void wa_xfer_result_cb(struct urb *urb)
urb->actual_length, sizeof(*xfer_result));
break;
}
xfer_result = wa->xfer_result;
xfer_result = (struct wa_xfer_result *)(wa->dti_buf);
if (xfer_result->hdr.bLength != sizeof(*xfer_result)) {
dev_err(dev, "DTI Error: xfer result--"
"bad header length %u\n",
@ -1735,7 +1735,7 @@ static void wa_xfer_result_cb(struct urb *urb)
xfer_id, usb_status);
break;
}
wa_xfer_result_chew(wa, xfer);
wa_xfer_result_chew(wa, xfer, xfer_result);
wa_xfer_put(xfer);
break;
case -ENOENT: /* (we killed the URB)...so, no broadcast */
@ -1777,7 +1777,7 @@ static void wa_xfer_result_cb(struct urb *urb)
* don't really set it up and start it until the first xfer complete
* notification arrives, which is what we do here.
*
* Follow up in wa_xfer_result_cb(), as that's where the whole state
* Follow up in wa_dti_cb(), as that's where the whole state
* machine starts.
*
* So here we just initialize the DTI URB for reading transfer result
@ -1813,8 +1813,8 @@ void wa_handle_notif_xfer(struct wahc *wa, struct wa_notif_hdr *notif_hdr)
usb_fill_bulk_urb(
wa->dti_urb, wa->usb_dev,
usb_rcvbulkpipe(wa->usb_dev, 0x80 | notif_xfer->bEndpoint),
wa->xfer_result, wa->xfer_result_size,
wa_xfer_result_cb, wa);
wa->dti_buf, wa->dti_buf_size,
wa_dti_cb, wa);
wa->buf_in_urb = usb_alloc_urb(0, GFP_KERNEL);
if (wa->buf_in_urb == NULL) {