Patchwork [03/36] ehci: Get rid of packet tbytes field

login
register
mail settings
Submitter Gerd Hoffmann
Date Oct. 25, 2012, 12:51 p.m.
Message ID <1351169529-10799-4-git-send-email-kraxel@redhat.com>
Download mbox | patch
Permalink /patch/194135/
State New
Headers show

Comments

Gerd Hoffmann - Oct. 25, 2012, 12:51 p.m.
From: Hans de Goede <hdegoede@redhat.com>

This field is used in some places to track the tbytes field of the token, but
in other places the field is used directly, use it directly everywhere for
consistency.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb/hcd-ehci.c |   20 +++++++++-----------
 1 files changed, 9 insertions(+), 11 deletions(-)

Patch

diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
index 6c65a73..82f4dbd 100644
--- a/hw/usb/hcd-ehci.c
+++ b/hw/usb/hcd-ehci.c
@@ -362,7 +362,6 @@  struct EHCIPacket {
     USBPacket packet;
     QEMUSGList sgl;
     int pid;
-    uint32_t tbytes;
     enum async_state async;
     int usb_status;
 };
@@ -1505,15 +1504,16 @@  static void ehci_execute_complete(EHCIQueue *q)
         }
     } else {
         // TODO check 4.12 for splits
+        uint32_t tbytes = get_field(q->qh.token, QTD_TOKEN_TBYTES);
 
-        if (p->tbytes && p->pid == USB_TOKEN_IN) {
-            p->tbytes -= p->usb_status;
+        if (tbytes && p->pid == USB_TOKEN_IN) {
+            tbytes -= p->usb_status;
         } else {
-            p->tbytes = 0;
+            tbytes = 0;
         }
 
-        DPRINTF("updating tbytes to %d\n", p->tbytes);
-        set_field(&q->qh.token, p->tbytes, QTD_TOKEN_TBYTES);
+        DPRINTF("updating tbytes to %d\n", tbytes);
+        set_field(&q->qh.token, tbytes, QTD_TOKEN_TBYTES);
     }
     ehci_finish_transfer(q, p->usb_status);
     usb_packet_unmap(&p->packet, &p->sgl);
@@ -1544,8 +1544,7 @@  static int ehci_execute(EHCIPacket *p, const char *action)
         return USB_RET_PROCERR;
     }
 
-    p->tbytes = (p->qtd.token & QTD_TOKEN_TBYTES_MASK) >> QTD_TOKEN_TBYTES_SH;
-    if (p->tbytes > BUFF_SIZE) {
+    if (get_field(p->qtd.token, QTD_TOKEN_TBYTES) > BUFF_SIZE) {
         ehci_trace_guest_bug(p->queue->ehci,
                              "guest requested more bytes than allowed");
         return USB_RET_PROCERR;
@@ -1582,10 +1581,9 @@  static int ehci_execute(EHCIPacket *p, const char *action)
 
     trace_usb_ehci_packet_action(p->queue, p, action);
     ret = usb_handle_packet(p->queue->dev, &p->packet);
-    DPRINTF("submit: qh %x next %x qtd %x pid %x len %zd "
-            "(total %d) endp %x ret %d\n",
+    DPRINTF("submit: qh %x next %x qtd %x pid %x len %zd endp %x ret %d\n",
             q->qhaddr, q->qh.next, q->qtdaddr, q->pid,
-            q->packet.iov.size, q->tbytes, endp, ret);
+            q->packet.iov.size, endp, ret);
 
     if (ret > BUFF_SIZE) {
         fprintf(stderr, "ret from usb_handle_packet > BUFF_SIZE\n");