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-rw-r--r--hw/usb-ehci.c43
-rw-r--r--trace-events1
2 files changed, 43 insertions, 1 deletions
diff --git a/hw/usb-ehci.c b/hw/usb-ehci.c
index 47a7fb9de..d8ef0cb42 100644
--- a/hw/usb-ehci.c
+++ b/hw/usb-ehci.c
@@ -149,6 +149,7 @@ typedef enum {
EST_FETCHENTRY,
EST_FETCHQH,
EST_FETCHITD,
+ EST_FETCHSITD,
EST_ADVANCEQUEUE,
EST_FETCHQTD,
EST_EXECUTE,
@@ -646,6 +647,13 @@ static void ehci_trace_itd(EHCIState *s, target_phys_addr_t addr, EHCIitd *itd)
get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR));
}
+static void ehci_trace_sitd(EHCIState *s, target_phys_addr_t addr,
+ EHCIsitd *sitd)
+{
+ trace_usb_ehci_sitd(addr, sitd->next,
+ (bool)(sitd->results & SITD_RESULTS_ACTIVE));
+}
+
/* queue management */
static EHCIQueue *ehci_alloc_queue(EHCIState *ehci, int async)
@@ -1584,8 +1592,13 @@ static int ehci_state_fetchentry(EHCIState *ehci, int async)
again = 1;
break;
+ case NLPTR_TYPE_STITD:
+ ehci_set_state(ehci, async, EST_FETCHSITD);
+ again = 1;
+ break;
+
default:
- // TODO: handle siTD and FSTN types
+ /* TODO: handle FSTN type */
fprintf(stderr, "FETCHENTRY: entry at %X is of type %d "
"which is not supported yet\n", entry, NLPTR_TYPE_GET(entry));
return -1;
@@ -1701,6 +1714,30 @@ static int ehci_state_fetchitd(EHCIState *ehci, int async)
return 1;
}
+static int ehci_state_fetchsitd(EHCIState *ehci, int async)
+{
+ uint32_t entry;
+ EHCIsitd sitd;
+
+ assert(!async);
+ entry = ehci_get_fetch_addr(ehci, async);
+
+ get_dwords(NLPTR_GET(entry), (uint32_t *)&sitd,
+ sizeof(EHCIsitd) >> 2);
+ ehci_trace_sitd(ehci, entry, &sitd);
+
+ if (!(sitd.results & SITD_RESULTS_ACTIVE)) {
+ /* siTD is not active, nothing to do */;
+ } else {
+ /* TODO: split transfers are not implemented */
+ fprintf(stderr, "WARNING: Skipping active siTD\n");
+ }
+
+ ehci_set_fetch_addr(ehci, async, sitd.next);
+ ehci_set_state(ehci, async, EST_FETCHENTRY);
+ return 1;
+}
+
/* Section 4.10.2 - paragraph 3 */
static int ehci_state_advqueue(EHCIQueue *q, int async)
{
@@ -1976,6 +2013,10 @@ static void ehci_advance_state(EHCIState *ehci,
again = ehci_state_fetchitd(ehci, async);
break;
+ case EST_FETCHSITD:
+ again = ehci_state_fetchsitd(ehci, async);
+ break;
+
case EST_ADVANCEQUEUE:
again = ehci_state_advqueue(q, async);
break;
diff --git a/trace-events b/trace-events
index a6e0cb4c4..593619228 100644
--- a/trace-events
+++ b/trace-events
@@ -223,6 +223,7 @@ usb_ehci_qtd_ptrs(void *q, uint32_t addr, uint32_t nxt, uint32_t altnext) "q %p
usb_ehci_qtd_fields(uint32_t addr, int tbytes, int cpage, int cerr, int pid) "QTD @ %08x - tbytes %d, cpage %d, cerr %d, pid %d"
usb_ehci_qtd_bits(uint32_t addr, int ioc, int active, int halt, int babble, int xacterr) "QTD @ %08x - ioc %d, active %d, halt %d, babble %d, xacterr %d"
usb_ehci_itd(uint32_t addr, uint32_t nxt, uint32_t mplen, uint32_t mult, uint32_t ep, uint32_t devaddr) "ITD @ %08x: next %08x - mplen %d, mult %d, ep %d, dev %d"
+usb_ehci_sitd(uint32_t addr, uint32_t nxt, uint32_t active) "ITD @ %08x: next %08x - active %d"
usb_ehci_port_attach(uint32_t port, const char *device) "attach port #%d - %s"
usb_ehci_port_detach(uint32_t port) "detach port #%d"
usb_ehci_port_reset(uint32_t port, int enable) "reset port #%d - %d"