drivers/mailbox/mailbox-sti.c

86 static inline bool sti_mbox_channel_is_enabled(struct mbox_chan *chan)
88 	struct sti_channel *chan_info = chan->con_priv;
119 static void sti_mbox_enable_channel(struct mbox_chan *chan)
121 	struct sti_channel *chan_info = chan->con_priv;
134 static void sti_mbox_disable_channel(struct mbox_chan *chan)
136 	struct sti_channel *chan_info = chan->con_priv;
149 static void sti_mbox_clear_irq(struct mbox_chan *chan)
151 	struct sti_channel *chan_info = chan->con_priv;
164 	struct mbox_chan *chan = NULL;
179 		chan = sti_mbox_to_channel(mbox, instance, channel);
180 		if (chan) {
188 	return chan;
195 	struct mbox_chan *chan;
200 		chan = sti_mbox_irq_to_channel(mdev, instance);
201 		if (!chan)
204 		mbox_chan_received_data(chan, NULL);
205 		sti_mbox_clear_irq(chan);
206 		sti_mbox_enable_channel(chan);
218 	struct mbox_chan *chan;
223 		chan = sti_mbox_irq_to_channel(mdev, instance);
224 		if (!chan)
226 		chan_info = chan->con_priv;
228 		if (!sti_mbox_channel_is_enabled(chan)) {
241 		sti_mbox_disable_channel(chan);
251 static bool sti_mbox_tx_is_ready(struct mbox_chan *chan)
253 	struct sti_channel *chan_info = chan->con_priv;
260 		dev_dbg(mdev->dev, "Mbox: %s: inst: %d, chan: %d disabled\n",
266 		dev_dbg(mdev->dev, "Mbox: %s: inst: %d, chan: %d not ready\n",
274 static int sti_mbox_send_data(struct mbox_chan *chan, void *data)
276 	struct sti_channel *chan_info = chan->con_priv;
292 static int sti_mbox_startup_chan(struct mbox_chan *chan)
294 	sti_mbox_clear_irq(chan);
295 	sti_mbox_enable_channel(chan);
300 static void sti_mbox_shutdown_chan(struct mbox_chan *chan)
302 	struct sti_channel *chan_info = chan->con_priv;
307 		if (chan == &mbox->chans[i])
316 	sti_mbox_disable_channel(chan);
317 	sti_mbox_clear_irq(chan);
318 	chan->con_priv = NULL;
327 	struct mbox_chan *chan = NULL;
357 		if (!chan && !chan_info)
358 			chan = &mbox->chans[i];
361 	if (!chan) {
374 	chan->con_priv = chan_info;
380 	return chan;