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usb: two smartcard reader fixes. 

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Merge remote-tracking branch 'remotes/kraxel/tags/usb-20180518-pull-request' into staging

usb: two smartcard reader fixes.

# gpg: Signature made Fri 18 May 2018 08:50:01 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/usb-20180518-pull-request:
  hw/usb/dev-smartcard-reader: Handle 64 B USB packets
  ccid-card-passthru: fix regression in realize()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2018-05-18 12:58:38 +01:00
parent 30d9081d64 8030dca376
commit dba0f15a3b
2 changed files with 10 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
hw/usb/ccid-card-passthru.c
View File

@ -345,7 +345,7 @@ static void passthru_realize(CCIDCardState *base, Error **errp)
card->vscard_in_pos = 0;
card->vscard_in_hdr = 0;
if (qemu_chr_fe_backend_connected(&card->cs)) {
error_setg(errp, "ccid-card-passthru: initing chardev");
DPRINTF(card, D_INFO, "ccid-card-passthru: initing chardev");
qemu_chr_fe_set_handlers(&card->cs,
ccid_card_vscard_can_read,
ccid_card_vscard_read,

14
hw/usb/dev-smartcard-reader.c
View File

@ -1064,7 +1064,8 @@ err:
return;
}
static void ccid_bulk_in_copy_to_guest(USBCCIDState *s, USBPacket *p)
static void ccid_bulk_in_copy_to_guest(USBCCIDState *s, USBPacket *p,
unsigned int max_packet_size)
{
int len = 0;
@ -1072,10 +1073,13 @@ static void ccid_bulk_in_copy_to_guest(USBCCIDState *s, USBPacket *p)
if (s->current_bulk_in != NULL) {
len = MIN(s->current_bulk_in->len - s->current_bulk_in->pos,
p->iov.size);
usb_packet_copy(p, s->current_bulk_in->data +
s->current_bulk_in->pos, len);
if (len) {
usb_packet_copy(p, s->current_bulk_in->data +
s->current_bulk_in->pos, len);
}
s->current_bulk_in->pos += len;
if (s->current_bulk_in->pos == s->current_bulk_in->len) {
if (s->current_bulk_in->pos == s->current_bulk_in->len
&& len != max_packet_size) {
ccid_bulk_in_release(s);
}
} else {
@ -1107,7 +1111,7 @@ static void ccid_handle_data(USBDevice *dev, USBPacket *p)
case USB_TOKEN_IN:
switch (p->ep->nr) {
case CCID_BULK_IN_EP:
ccid_bulk_in_copy_to_guest(s, p);
ccid_bulk_in_copy_to_guest(s, p, dev->ep_ctl.max_packet_size);
break;
case CCID_INT_IN_EP:
if (s->notify_slot_change) {