24 static int sandbox_mbox_request(struct mbox_chan *chan)  in sandbox_mbox_request()  argument
26 	debug("%s(chan=%p)\n", __func__, chan);  in sandbox_mbox_request()
28 	if (chan->id >= SANDBOX_MBOX_CHANNELS)  in sandbox_mbox_request()
34 static int sandbox_mbox_free(struct mbox_chan *chan)  in sandbox_mbox_free()  argument
36 	debug("%s(chan=%p)\n", __func__, chan);  in sandbox_mbox_free()
41 static int sandbox_mbox_send(struct mbox_chan *chan, const void *data)  in sandbox_mbox_send()  argument
43 	struct sandbox_mbox *sbm = dev_get_priv(chan->dev);  in sandbox_mbox_send()
46 	debug("%s(chan=%p, data=%p)\n", __func__, chan, data);  in sandbox_mbox_send()
48 	sbm->chans[chan->id].rx_msg = *pmsg ^ SANDBOX_MBOX_PING_XOR;  in sandbox_mbox_send()
49 	sbm->chans[chan->id].rx_msg_valid = true;  in sandbox_mbox_send()
54 static int sandbox_mbox_recv(struct mbox_chan *chan, void *data)  in sandbox_mbox_recv()  argument
56 	struct sandbox_mbox *sbm = dev_get_priv(chan->dev);  in sandbox_mbox_recv()
59 	debug("%s(chan=%p, data=%p)\n", __func__, chan, data);  in sandbox_mbox_recv()
61 	if (!sbm->chans[chan->id].rx_msg_valid)  in sandbox_mbox_recv()
64 	*pmsg = sbm->chans[chan->id].rx_msg;  in sandbox_mbox_recv()
65 	sbm->chans[chan->id].rx_msg_valid = false;  in sandbox_mbox_recv()