[Qemu-devel] [PATCH 4/4] xhci: drop via vendor command handling

[Gerd Hoffmann <kraxel@redhat.com>]

Seems pretty pointless, we don't emulate an via xhci controller.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb/hcd-xhci.c | 31 -------------------------------
 1 file changed, 31 deletions(-)

diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 0e25943..fbf8a8b 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -196,7 +196,6 @@ typedef enum TRBType {
     ER_DEVICE_NOTIFICATION,
     ER_MFINDEX_WRAP,
     /* vendor specific bits */
-    CR_VENDOR_VIA_CHALLENGE_RESPONSE = 48,
     CR_VENDOR_NEC_FIRMWARE_REVISION  = 49,
     CR_VENDOR_NEC_CHALLENGE_RESPONSE = 50,
 } TRBType;
@@ -552,7 +551,6 @@ static const char *TRBType_names[] = {
     [ER_HOST_CONTROLLER]               = "ER_HOST_CONTROLLER",
     [ER_DEVICE_NOTIFICATION]           = "ER_DEVICE_NOTIFICATION",
     [ER_MFINDEX_WRAP]                  = "ER_MFINDEX_WRAP",
-    [CR_VENDOR_VIA_CHALLENGE_RESPONSE] = "CR_VENDOR_VIA_CHALLENGE_RESPONSE",
     [CR_VENDOR_NEC_FIRMWARE_REVISION]  = "CR_VENDOR_NEC_FIRMWARE_REVISION",
     [CR_VENDOR_NEC_CHALLENGE_RESPONSE] = "CR_VENDOR_NEC_CHALLENGE_RESPONSE",
 };
@@ -2614,32 +2612,6 @@ static uint32_t xhci_nec_challenge(uint32_t hi, uint32_t lo)
     return ~val;
 }
 
-static void xhci_via_challenge(XHCIState *xhci, uint64_t addr)
-{
-    PCIDevice *pci_dev = PCI_DEVICE(xhci);
-    uint32_t buf[8];
-    uint32_t obuf[8];
-    dma_addr_t paddr = xhci_mask64(addr);
-
-    pci_dma_read(pci_dev, paddr, &buf, 32);
-
-    memcpy(obuf, buf, sizeof(obuf));
-
-    if ((buf[0] & 0xff) == 2) {
-        obuf[0] = 0x49932000 + 0x54dc200 * buf[2] + 0x7429b578 * buf[3];
-        obuf[0] |=  (buf[2] * buf[3]) & 0xff;
-        obuf[1] = 0x0132bb37 + 0xe89 * buf[2] + 0xf09 * buf[3];
-        obuf[2] = 0x0066c2e9 + 0x2091 * buf[2] + 0x19bd * buf[3];
-        obuf[3] = 0xd5281342 + 0x2cc9691 * buf[2] + 0x2367662 * buf[3];
-        obuf[4] = 0x0123c75c + 0x1595 * buf[2] + 0x19ec * buf[3];
-        obuf[5] = 0x00f695de + 0x26fd * buf[2] + 0x3e9 * buf[3];
-        obuf[6] = obuf[2] ^ obuf[3] ^ 0x29472956;
-        obuf[7] = obuf[2] ^ obuf[3] ^ 0x65866593;
-    }
-
-    pci_dma_write(pci_dev, paddr, &obuf, 32);
-}
-
 static void xhci_process_commands(XHCIState *xhci)
 {
     XHCITRB trb;
@@ -2735,9 +2707,6 @@ static void xhci_process_commands(XHCIState *xhci)
         case CR_GET_PORT_BANDWIDTH:
             event.ccode = xhci_get_port_bandwidth(xhci, trb.parameter);
             break;
-        case CR_VENDOR_VIA_CHALLENGE_RESPONSE:
-            xhci_via_challenge(xhci, trb.parameter);
-            break;
         case CR_VENDOR_NEC_FIRMWARE_REVISION:
             if (xhci->nec_quirks) {
                 event.type = 48; /* NEC reply */
-- 
1.8.3.1