Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.11-20170927' into staging

[qemu.git] / hw / usb / hcd-ohci.c

diff --git a/hw/usb/hcd-ohci.c b/hw/usb/hcd-ohci.c
index c82a92fff73eb3e605496c8b8008a691fac83435..17beeddb09a03778200ce61bbc1148febf153b5d 100644 (file)
--- a/hw/usb/hcd-ohci.c
+++ b/hw/usb/hcd-ohci.c
@@ -42,6 +42,8 @@
 
 #define OHCI_MAX_PORTS 15
 
+#define ED_LINK_LIMIT 32
+
 static int64_t usb_frame_time;
 static int64_t usb_bit_time;
 
@@ -725,7 +727,7 @@ static int ohci_service_iso_td(OHCIState *ohci, struct ohci_ed *ed,
     if (ohci_read_iso_td(ohci, addr, &iso_td)) {
         trace_usb_ohci_iso_td_read_failed(addr);
         ohci_die(ohci);
-        return 0;
+        return 1;
     }
 
     starting_frame = OHCI_BM(iso_td.flags, TD_SF);
@@ -934,16 +936,18 @@ static int ohci_service_iso_td(OHCIState *ohci, struct ohci_ed *ed,
     return 1;
 }
 
-#ifdef trace_event_get_state
 static void ohci_td_pkt(const char *msg, const uint8_t *buf, size_t len)
 {
-    bool print16 = !!trace_event_get_state(TRACE_USB_OHCI_TD_PKT_SHORT);
-    bool printall = !!trace_event_get_state(TRACE_USB_OHCI_TD_PKT_FULL);
+    bool print16;
+    bool printall;
     const int width = 16;
     int i;
     char tmp[3 * width + 1];
     char *p = tmp;
 
+    print16 = !!trace_event_get_state_backends(TRACE_USB_OHCI_TD_PKT_SHORT);
+    printall = !!trace_event_get_state_backends(TRACE_USB_OHCI_TD_PKT_FULL);
+
     if (!printall && !print16) {
         return;
     }
@@ -965,11 +969,6 @@ static void ohci_td_pkt(const char *msg, const uint8_t *buf, size_t len)
         p += sprintf(p, " %.2x", buf[i]);
     }
 }
-#else
-static void ohci_td_pkt(const char *msg, const uint8_t *buf, size_t len)
-{
-}
-#endif
 
 /* Service a transport descriptor.
    Returns nonzero to terminate processing of this endpoint.  */
@@ -999,7 +998,7 @@ static int ohci_service_td(OHCIState *ohci, struct ohci_ed *ed)
     if (ohci_read_td(ohci, addr, &td)) {
         trace_usb_ohci_td_read_error(addr);
         ohci_die(ohci);
-        return 0;
+        return 1;
     }
 
     dir = OHCI_BM(ed->flags, ED_D);
@@ -1184,7 +1183,7 @@ static int ohci_service_ed_list(OHCIState *ohci, uint32_t head, int completion)
     uint32_t next_ed;
     uint32_t cur;
     int active;
-
+    uint32_t link_cnt = 0;
     active = 0;
 
     if (head == 0)
@@ -1199,6 +1198,11 @@ static int ohci_service_ed_list(OHCIState *ohci, uint32_t head, int completion)
 
         next_ed = ed.next & OHCI_DPTR_MASK;
 
+        if (++link_cnt > ED_LINK_LIMIT) {
+            ohci_die(ohci);
+            return 0;
+        }
+
         if ((ed.head & OHCI_ED_H) || (ed.flags & OHCI_ED_K)) {
             uint32_t addr;
             /* Cancel pending packets for ED that have been paused.  */
@@ -1995,7 +1999,9 @@ typedef struct {
     /*< public >*/
 
     OHCIState ohci;
+    char *masterbus;
     uint32_t num_ports;
+    uint32_t firstport;
     dma_addr_t dma_offset;
 } OHCISysBusState;
 
@@ -2003,10 +2009,15 @@ static void ohci_realize_pxa(DeviceState *dev, Error **errp)
 {
     OHCISysBusState *s = SYSBUS_OHCI(dev);
     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+    Error *err = NULL;
 
-    /* Cannot fail as we pass NULL for masterbus */
-    usb_ohci_init(&s->ohci, dev, s->num_ports, s->dma_offset, NULL, 0,
-                  &address_space_memory, &error_abort);
+    usb_ohci_init(&s->ohci, dev, s->num_ports, s->dma_offset,
+                  s->masterbus, s->firstport,
+                  &address_space_memory, &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
     sysbus_init_irq(sbd, &s->ohci.irq);
     sysbus_init_mmio(sbd, &s->ohci.mem);
 }
@@ -2138,7 +2149,9 @@ static const TypeInfo ohci_pci_info = {
 };
 
 static Property ohci_sysbus_properties[] = {
+    DEFINE_PROP_STRING("masterbus", OHCISysBusState, masterbus),
     DEFINE_PROP_UINT32("num-ports", OHCISysBusState, num_ports, 3),
+    DEFINE_PROP_UINT32("firstport", OHCISysBusState, firstport, 0),
     DEFINE_PROP_DMAADDR("dma-offset", OHCISysBusState, dma_offset, 0),
     DEFINE_PROP_END_OF_LIST(),
 };