Changeset a963a68 in mainline for uspace/drv/uhci-hcd/uhci_hc.c

Timestamp:

2011-03-15T14:43:51Z (14 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

eb2a48a

Parents:

9370884

Message:

Hw error handling.

File:

• uspace/drv/uhci-hcd/uhci_hc.c (modified) (2 diffs)

uspace/drv/uhci-hcd/uhci_hc.c

@@ -347 +347 @@
 {
         assert(instance);
-        /* TODO: Check interrupt cause here */
+        /* TODO: Resume interrupts are not supported */
         /* Lower 2 bits are transaction error and transaction complete */
         if (status & 0x3) {
@@ -354 +354 @@
                 transfer_list_remove_finished(&instance->transfers_control_full);
                 transfer_list_remove_finished(&instance->transfers_bulk_full);
+        }
+        /* bits 4 and 5 indicate hc error */
+        if (status & 0x18) {
+                transfer_list_abort_all(&instance->transfers_interrupt);
+                transfer_list_abort_all(&instance->transfers_control_slow);
+                transfer_list_abort_all(&instance->transfers_control_full);
+                transfer_list_abort_all(&instance->transfers_bulk_full);
+                /* reinitialize hw, this triggers virtual disconnect*/
+                uhci_hc_init_hw(instance);
         }
 }