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>
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@ -44,11 +44,11 @@ int wa_create(struct wahc *wa, struct usb_interface *iface)
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/* Fill up Data Transfer EP pointers */
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wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc;
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wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc;
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wa->xfer_result_size = usb_endpoint_maxp(wa->dti_epd);
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wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL);
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if (wa->xfer_result == NULL) {
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wa->dti_buf_size = usb_endpoint_maxp(wa->dti_epd);
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wa->dti_buf = kmalloc(wa->dti_buf_size, GFP_KERNEL);
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if (wa->dti_buf == NULL) {
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result = -ENOMEM;
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goto error_xfer_result_alloc;
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goto error_dti_buf_alloc;
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}
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result = wa_nep_create(wa, iface);
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if (result < 0) {
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@ -59,8 +59,8 @@ int wa_create(struct wahc *wa, struct usb_interface *iface)
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return 0;
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error_nep_create:
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kfree(wa->xfer_result);
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error_xfer_result_alloc:
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kfree(wa->dti_buf);
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error_dti_buf_alloc:
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wa_rpipes_destroy(wa);
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error_rpipes_create:
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return result;
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@ -76,7 +76,7 @@ void __wa_destroy(struct wahc *wa)
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usb_kill_urb(wa->buf_in_urb);
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usb_put_urb(wa->buf_in_urb);
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}
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kfree(wa->xfer_result);
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kfree(wa->dti_buf);
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wa_nep_destroy(wa);
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wa_rpipes_destroy(wa);
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}
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@ -184,8 +184,8 @@ struct wahc {
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struct urb *dti_urb; /* URB for reading xfer results */
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struct urb *buf_in_urb; /* URB for reading data in */
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struct edc dti_edc; /* DTI error density counter */
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struct wa_xfer_result *xfer_result; /* real size = dti_ep maxpktsize */
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size_t xfer_result_size;
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void *dti_buf;
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size_t dti_buf_size;
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s32 status; /* For reading status */
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@ -1418,7 +1418,8 @@ static int wa_xfer_status_to_errno(u8 status)
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*
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* FIXME: this function needs to be broken up in parts
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*/
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static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer)
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static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer,
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struct wa_xfer_result *xfer_result)
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{
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int result;
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struct device *dev = &wa->usb_iface->dev;
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@ -1426,8 +1427,7 @@ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer)
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u8 seg_idx;
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struct wa_seg *seg;
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struct wa_rpipe *rpipe;
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struct wa_xfer_result *xfer_result = wa->xfer_result;
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u8 done = 0;
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unsigned done = 0;
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u8 usb_status;
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unsigned rpipe_ready = 0;
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@ -1687,7 +1687,7 @@ static void wa_buf_in_cb(struct urb *urb)
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* We go back to OFF when we detect a ENOENT or ESHUTDOWN (or too many
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* errors) in the URBs.
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*/
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static void wa_xfer_result_cb(struct urb *urb)
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static void wa_dti_cb(struct urb *urb)
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{
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int result;
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struct wahc *wa = urb->context;
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@ -1709,7 +1709,7 @@ static void wa_xfer_result_cb(struct urb *urb)
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urb->actual_length, sizeof(*xfer_result));
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break;
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}
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xfer_result = wa->xfer_result;
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xfer_result = (struct wa_xfer_result *)(wa->dti_buf);
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if (xfer_result->hdr.bLength != sizeof(*xfer_result)) {
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dev_err(dev, "DTI Error: xfer result--"
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"bad header length %u\n",
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@ -1735,7 +1735,7 @@ static void wa_xfer_result_cb(struct urb *urb)
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xfer_id, usb_status);
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break;
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}
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wa_xfer_result_chew(wa, xfer);
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wa_xfer_result_chew(wa, xfer, xfer_result);
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wa_xfer_put(xfer);
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break;
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case -ENOENT: /* (we killed the URB)...so, no broadcast */
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@ -1777,7 +1777,7 @@ out:
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* don't really set it up and start it until the first xfer complete
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* notification arrives, which is what we do here.
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*
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* Follow up in wa_xfer_result_cb(), as that's where the whole state
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* Follow up in wa_dti_cb(), as that's where the whole state
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* machine starts.
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*
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* So here we just initialize the DTI URB for reading transfer result
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@ -1813,8 +1813,8 @@ void wa_handle_notif_xfer(struct wahc *wa, struct wa_notif_hdr *notif_hdr)
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usb_fill_bulk_urb(
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wa->dti_urb, wa->usb_dev,
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usb_rcvbulkpipe(wa->usb_dev, 0x80 | notif_xfer->bEndpoint),
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wa->xfer_result, wa->xfer_result_size,
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wa_xfer_result_cb, wa);
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wa->dti_buf, wa->dti_buf_size,
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wa_dti_cb, wa);
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wa->buf_in_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (wa->buf_in_urb == NULL) {
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