aboutsummaryrefslogtreecommitdiffstats
path: root/hw/usb-serial.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/usb-serial.c')
-rw-r--r--hw/usb-serial.c27
1 files changed, 16 insertions, 11 deletions
diff --git a/hw/usb-serial.c b/hw/usb-serial.c
index 09731da48..bf2b775e8 100644
--- a/hw/usb-serial.c
+++ b/hw/usb-serial.c
@@ -359,38 +359,42 @@ static int usb_serial_handle_control(USBDevice *dev, USBPacket *p,
static int usb_serial_handle_data(USBDevice *dev, USBPacket *p)
{
USBSerialState *s = (USBSerialState *)dev;
- int ret = 0;
+ int i, ret = 0;
uint8_t devep = p->devep;
- uint8_t *data = p->iov.iov[0].iov_base;
- int len = p->iov.iov[0].iov_len;
- int first_len;
+ struct iovec *iov;
+ uint8_t header[2];
+ int first_len, len;
- assert(p->iov.niov == 1); /* temporary */
switch (p->pid) {
case USB_TOKEN_OUT:
if (devep != 2)
goto fail;
- qemu_chr_write(s->cs, data, len);
+ for (i = 0; i < p->iov.niov; i++) {
+ iov = p->iov.iov + i;
+ qemu_chr_write(s->cs, iov->iov_base, iov->iov_len);
+ }
break;
case USB_TOKEN_IN:
if (devep != 1)
goto fail;
first_len = RECV_BUF - s->recv_ptr;
+ len = p->iov.size;
if (len <= 2) {
ret = USB_RET_NAK;
break;
}
- *data++ = usb_get_modem_lines(s) | 1;
+ header[0] = usb_get_modem_lines(s) | 1;
/* We do not have the uart details */
/* handle serial break */
if (s->event_trigger && s->event_trigger & FTDI_BI) {
s->event_trigger &= ~FTDI_BI;
- *data = FTDI_BI;
+ header[1] = FTDI_BI;
+ usb_packet_copy(p, header, 2);
ret = 2;
break;
} else {
- *data++ = 0;
+ header[1] = 0;
}
len -= 2;
if (len > s->recv_used)
@@ -401,9 +405,10 @@ static int usb_serial_handle_data(USBDevice *dev, USBPacket *p)
}
if (first_len > len)
first_len = len;
- memcpy(data, s->recv_buf + s->recv_ptr, first_len);
+ usb_packet_copy(p, header, 2);
+ usb_packet_copy(p, s->recv_buf + s->recv_ptr, first_len);
if (len > first_len)
- memcpy(data + first_len, s->recv_buf, len - first_len);
+ usb_packet_copy(p, s->recv_buf, len - first_len);
s->recv_used -= len;
s->recv_ptr = (s->recv_ptr + len) % RECV_BUF;
ret = len + 2;