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s390x/3270: Add the TCP socket events handler for 3270 

This introduces a chr_event handler to handle the 3270 connection
and disconnection events.

Signed-off-by: Jing Liu <liujbjl@linux.vnet.ibm.com>
Reviewed-by: QingFeng Hao <haoqf@linux.vnet.ibm.com>
Reviewed-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Jing Liu 2016-07-21 08:00:58 +02:00 committed by Cornelia Huck
parent 2dc95b4cac
commit 4996241a4a
1 changed files with 27 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
hw/char/terminal3270.c
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@ -117,6 +117,32 @@ static void terminal_read(void *opaque, const uint8_t *buf, int size)
}
}
static void chr_event(void *opaque, int event)
{
Terminal3270 *t = opaque;
CcwDevice *ccw_dev = CCW_DEVICE(t);
SubchDev *sch = ccw_dev->sch;
/* Ensure the initial status correct, always reset them. */
t->in_len = 0;
t->out_len = 0;
t->handshake_done = false;
switch (event) {
case CHR_EVENT_OPENED:
/*
* 3270 does handshake firstly by the negotiate options in
* char-socket.c. Once qemu receives the terminal-type of the
* client, mark handshake done and trigger everything rolling again.
*/
break;
case CHR_EVENT_CLOSED:
sch->curr_status.scsw.dstat = SCSW_DSTAT_DEVICE_END;
css_conditional_io_interrupt(sch);
break;
}
}
static void terminal_init(EmulatedCcw3270Device *dev, Error **errp)
{
Terminal3270 *t = TERMINAL_3270(dev);
@ -128,7 +154,7 @@ static void terminal_init(EmulatedCcw3270Device *dev, Error **errp)
}
terminal_available = true;
qemu_chr_fe_set_handlers(&t->chr, terminal_can_read,
terminal_read, NULL, t, NULL, true);
terminal_read, chr_event, t, NULL, true);
}
static int read_payload_3270(EmulatedCcw3270Device *dev, uint32_t cda,