Commit 4996241a authored by Jing Liu's avatar Jing Liu Committed by Cornelia Huck
Browse files

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: default avatarJing Liu <liujbjl@linux.vnet.ibm.com>
Reviewed-by: default avatarQingFeng Hao <haoqf@linux.vnet.ibm.com>
Reviewed-by: default avatarDong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
parent 2dc95b4c

hw/char/terminal3270.c

+27 −1
Original line number Diff line number Diff line
@@ -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,