Changeset 6de2d766 in mainline for uspace/drv/bus/usb/ohci/ohci_batch.c

Timestamp:

2012-07-20T18:14:55Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

b828907, be67118

Parents:

7030bc9 (diff), 32260a0 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge USB branch.

USB should be endian agnostic now.
OHCI and pci work on qemu powerpc, but pci locks up on real hw.
Hopefully no regressions on amd64/ia32.
Tested on qemu and Virtualbox.

File:

• uspace/drv/bus/usb/ohci/ohci_batch.c (modified) (10 diffs)

uspace/drv/bus/usb/ohci/ohci_batch.c

@@ -44 +44 @@
 
 static void (*const batch_setup[])(ohci_transfer_batch_t*, usb_direction_t);
-/*----------------------------------------------------------------------------*/
+
 /** Safely destructs ohci_transfer_batch_t structure
  *
@@ -67 +67 @@
         free(ohci_batch);
 }
-/*----------------------------------------------------------------------------*/
+
 /** Finishes usb_transfer_batch and destroys the structure.
  *
@@ -80 +80 @@
         ohci_transfer_batch_dispose(ohci_batch);
 }
-/*----------------------------------------------------------------------------*/
+
 /** Allocate memory and initialize internal data structure.
  *
@@ -158 +158 @@
 #undef CHECK_NULL_DISPOSE_RET
 }
-/*----------------------------------------------------------------------------*/
+
 /** Check batch TDs' status.
  *
@@ -199 +199 @@
                     ohci_batch->tds[i]->next, ohci_batch->tds[i]->be);
 
-                /* If the TD got all its data through, it will report 0 bytes
-                 * remain, the sole exception is INPUT with data rounding flag
-                 * (short), i.e. every INPUT. Nice thing is that short packets
-                 * will correctly report remaining data, thus making
-                 * this computation correct (short packets need to be produced
-                 * by the last TD)
-                 * NOTE: This also works for CONTROL transfer as
-                 * the first TD will return 0 remain.
-                 * NOTE: Short packets don't break the assumption that
-                 * we leave the very last(unused) TD behind.
-                 */
-                ohci_batch->usb_batch->transfered_size
-                    -= td_remain_size(ohci_batch->tds[i]);
-
                 ohci_batch->usb_batch->error = td_error(ohci_batch->tds[i]);
-                if (ohci_batch->usb_batch->error != EOK) {
+                if (ohci_batch->usb_batch->error == EOK) {
+                        /* If the TD got all its data through, it will report
+                         * 0 bytes remain, the sole exception is INPUT with
+                         * data rounding flag (short), i.e. every INPUT.
+                         * Nice thing is that short packets will correctly
+                         * report remaining data, thus making this computation
+                         * correct (short packets need to be produced by the
+                         * last TD)
+                         * NOTE: This also works for CONTROL transfer as
+                         * the first TD will return 0 remain.
+                         * NOTE: Short packets don't break the assumption that
+                         * we leave the very last(unused) TD behind.
+                         */
+                        ohci_batch->usb_batch->transfered_size
+                            -= td_remain_size(ohci_batch->tds[i]);
+                } else {
                         usb_log_debug("Batch %p found error TD(%zu):%08x.\n",
                             ohci_batch->usb_batch, i,
@@ -231 +232 @@
 
                         /* Check TD assumption */
-                        const uint32_t pa =
-                            addr_to_phys(ohci_batch->tds[leave_td]);
-                        assert((ohci_batch->ed->td_head & ED_TDHEAD_PTR_MASK)
-                            == pa);
-
+                        assert(ed_head_td(ohci_batch->ed) ==
+                            addr_to_phys(ohci_batch->tds[leave_td]));
+
+                        /* Set tail to the same TD */
                         ed_set_tail_td(ohci_batch->ed,
                             ohci_batch->tds[leave_td]);
 
                         /* Clear possible ED HALT */
-                        ohci_batch->ed->td_head &= ~ED_TDHEAD_HALTED_FLAG;
+                        ed_clear_halt(ohci_batch->ed);
                         break;
                 }
@@ -253 +253 @@
 
         /* Make sure that we are leaving the right TD behind */
-        const uint32_t pa = addr_to_phys(ohci_ep->td);
-        assert(pa == (ohci_batch->ed->td_head & ED_TDHEAD_PTR_MASK));
-        assert(pa == (ohci_batch->ed->td_tail & ED_TDTAIL_PTR_MASK));
+        assert(addr_to_phys(ohci_ep->td) == ed_head_td(ohci_batch->ed));
+        assert(addr_to_phys(ohci_ep->td) == ed_tail_td(ohci_batch->ed));
 
         return true;
 }
-/*----------------------------------------------------------------------------*/
+
 /** Starts execution of the TD list
  *
@@ -269 +268 @@
         ed_set_tail_td(ohci_batch->ed, ohci_batch->tds[ohci_batch->td_count]);
 }
-/*----------------------------------------------------------------------------*/
+
 /** Prepare generic control transfer
  *
@@ -345 +344 @@
             USB_TRANSFER_BATCH_ARGS(*ohci_batch->usb_batch));
 }
-/*----------------------------------------------------------------------------*/
+
 /** Prepare generic data transfer
  *
@@ -392 +391 @@
             USB_TRANSFER_BATCH_ARGS(*ohci_batch->usb_batch));
 }
-/*----------------------------------------------------------------------------*/
+
 /** Transfer setup table. */
 static void (*const batch_setup[])(ohci_transfer_batch_t*, usb_direction_t) =