Merge tag 'kraxel-20220704-pull-request' of https://gitlab.com/kraxel/qemu into staging

usb: canokey fixes.
ui: better tab labels, cocoa fix,
docs: convert fw_cfg to rst.

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# gpg: Signature made Mon 04 Jul 2022 01:29:24 PM +0530
# gpg:                using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [undefined]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [undefined]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* tag 'kraxel-20220704-pull-request' of https://gitlab.com/kraxel/qemu:
  hw: canokey: Remove HS support as not compliant to the spec
  docs/system/devices/usb/canokey: remove limitations on qemu-xhci
  hw/usb/canokey: fix compatibility of qemu-xhci
  hw/usb/canokey: Fix CCID ZLP
  ui/cocoa: Fix clipboard text release
  ui/console: allow display device to be labeled with given id
  Convert fw_cfg.rst to reStructuredText syntax
  Rename docs/specs/fw_cfg.txt to .rst

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 26 insertions, 5 deletions

diff --git a/hw/usb/canokey.c b/hw/usb/canokey.c
index 4a08b1c..bbc5da0 100644
--- a/hw/usb/canokey.c
+++ b/hw/usb/canokey.c
@@ -56,7 +56,6 @@ static const USBDesc desc_canokey = {
         .iSerialNumber     = STR_SERIALNUMBER,
     },
     .full = &desc_device_canokey,
-    .high = &desc_device_canokey,
     .str  = desc_strings,
 };
 
@@ -104,16 +103,22 @@ int canokey_emu_transmit(
     key->ep_in_size[ep_in] += size;
     key->ep_in_state[ep_in] = CANOKEY_EP_IN_READY;
     /*
+     * wake up controller if we NAKed IN token before
+     * Note: this is a quirk for CanoKey CTAPHID
+     */
+    if (ep_in == CANOKEY_EMU_EP_CTAPHID) {
+        usb_wakeup(usb_ep_get(&key->dev, USB_TOKEN_IN, ep_in), 0);
+    }
+    /*
      * ready for more data in device loop
      *
      * Note: this is a quirk for CanoKey CTAPHID
      * because it calls multiple emu_transmit in one device_loop
      * but w/o data_in it would stuck in device_loop
-     * This has no side effect for CCID as it is strictly
-     * OUT then IN transfer
-     * However it has side effect for Control transfer
+     * This has side effect for CCID since CCID can send ZLP
+     * This also has side effect for Control transfer
      */
-    if (ep_in != 0) {
+    if (ep_in == CANOKEY_EMU_EP_CTAPHID) {
         canokey_emu_data_in(ep_in);
     }
     return 0;
@@ -209,6 +214,22 @@ static void canokey_handle_data(USBDevice *dev, USBPacket *p)
             key->ep_out_size[ep_out] = out_len;
             canokey_emu_data_out(ep_out, NULL);
         }
+        /*
+         * Note: this is a quirk for CanoKey CTAPHID
+         *
+         * There is one code path that uses this device loop
+         * INTR IN -> useful data_in and useless device_loop -> NAKed
+         * INTR OUT -> useful device loop -> transmit -> wakeup
+         *   (useful thanks to both data_in and data_out having been called)
+         * the next INTR IN -> actual data to guest
+         *
+         * if there is no such device loop, there would be no further
+         * INTR IN, no device loop, no transmit hence no usb_wakeup
+         * then qemu would hang
+         */
+        if (ep_in == CANOKEY_EMU_EP_CTAPHID) {
+            canokey_emu_device_loop(); /* may call transmit multiple times */
+        }
         break;
     case USB_TOKEN_IN:
         if (key->ep_in_pos[ep_in] == 0) { /* first time IN */