Changeset a06fd64 in mainline for uspace/drv/bus/usb/xhci/hc.c

Timestamp:

2017-07-23T01:31:57Z (7 years ago)

Author:

Jaroslav Jindrak <dzejrou@…>

Branches:

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

Children:

c4d4fa2

Parents:

aee352c

Message:

Fixed the ERDP update, we were missing macro definitions for EHB and did not set it after updating ERDP.

File:

• uspace/drv/bus/usb/xhci/hc.c (modified) (3 diffs)

uspace/drv/bus/usb/xhci/hc.c

@@ -358 +358 @@
         async_usleep(1000);
         xhci_dump_state(hc);
+        async_usleep(10000);
+        xhci_send_no_op_command(hc, NULL);
 
         xhci_dump_trb(hc->event_ring.dequeue_trb);
@@ -384 +386 @@
         xhci_trb_t trb;
 
+        // TODO: Apparently we are supposed to process events until ering is empty
+        //       and then update the erdp?
         err = xhci_event_ring_dequeue(event_ring, &trb);;
 
@@ -401 +405 @@
 
         /* Update the ERDP to make room in the ring */
+        hc->event_ring.dequeue_ptr = host2xhci(64, addr_to_phys(hc->event_ring.dequeue_trb));
         uint64_t erdp = hc->event_ring.dequeue_ptr;
         XHCI_REG_WR(intr, XHCI_INTR_ERDP_LO, LOWER32(erdp));
         XHCI_REG_WR(intr, XHCI_INTR_ERDP_HI, UPPER32(erdp));
+        XHCI_REG_SET(intr, XHCI_INTR_ERDP_EHB, 1);
 }