Lines Matching refs:mbox
89 static void mbox_set_state(struct hi6220_mbox *mbox,
94 status = readl(mbox->base + MBOX_MODE_REG(slot));
96 writel(status, mbox->base + MBOX_MODE_REG(slot));
99 static void mbox_set_mode(struct hi6220_mbox *mbox,
104 mode = readl(mbox->base + MBOX_MODE_REG(slot));
106 writel(mode, mbox->base + MBOX_MODE_REG(slot));
112 struct hi6220_mbox *mbox = mchan->parent;
116 BUG_ON(mbox->tx_irq_mode);
118 state = readl(mbox->base + MBOX_MODE_REG(mchan->slot));
125 struct hi6220_mbox *mbox = mchan->parent;
133 mbox_set_state(mbox, slot, MBOX_STATE_TX);
135 if (mbox->tx_irq_mode)
136 mbox_set_mode(mbox, slot, MBOX_ACK_IRQ);
138 mbox_set_mode(mbox, slot, MBOX_ACK_AUTOMATIC);
141 writel(buf[i], mbox->base + MBOX_DATA_REG(slot) + i * 4);
144 writel(BIT(mchan->dst_irq), DST_INT_RAW_REG(mbox->ipc));
150 struct hi6220_mbox *mbox = p;
156 state = readl(ACK_INT_STAT_REG(mbox->ipc));
158 dev_warn(mbox->dev, "%s: spurious interrupt\n",
167 chan = mbox->irq_map_chan[intr_bit];
169 dev_warn(mbox->dev, "%s: unexpected irq vector %d\n",
179 msg[i] = readl(mbox->base +
186 writel(BIT(mchan->ack_irq), ACK_INT_CLR_REG(mbox->ipc));
187 mbox_set_state(mbox, mchan->slot, MBOX_STATE_IDLE);
196 struct hi6220_mbox *mbox = mchan->parent;
201 writel(BIT(mchan->ack_irq), ACK_INT_ENA_REG(mbox->ipc));
208 struct hi6220_mbox *mbox = mchan->parent;
211 writel(BIT(mchan->ack_irq), ACK_INT_DIS_REG(mbox->ipc));
212 mbox->irq_map_chan[mchan->ack_irq] = NULL;
225 struct hi6220_mbox *mbox = dev_get_drvdata(controller->dev);
233 if (i >= mbox->chan_num || dst_irq >= mbox->chan_num ||
234 ack_irq >= mbox->chan_num) {
235 dev_err(mbox->dev,
242 chan = &mbox->chan[i];
243 if (mbox->irq_map_chan[ack_irq] == (void *)chan) {
244 dev_err(mbox->dev, "Channel in use\n");
252 mbox->irq_map_chan[ack_irq] = (void *)chan;
257 { .compatible = "hisilicon,hi6220-mbox", },
266 struct hi6220_mbox *mbox;
270 mbox = devm_kzalloc(dev, sizeof(*mbox), GFP_KERNEL);
271 if (!mbox)
274 mbox->dev = dev;
275 mbox->chan_num = MBOX_CHAN_MAX;
276 mbox->mchan = devm_kcalloc(dev,
277 mbox->chan_num, sizeof(*mbox->mchan), GFP_KERNEL);
278 if (!mbox->mchan)
281 mbox->chan = devm_kcalloc(dev,
282 mbox->chan_num, sizeof(*mbox->chan), GFP_KERNEL);
283 if (!mbox->chan)
286 mbox->irq = platform_get_irq(pdev, 0);
287 if (mbox->irq < 0)
288 return mbox->irq;
291 mbox->ipc = devm_ioremap_resource(dev, res);
292 if (IS_ERR(mbox->ipc)) {
294 return PTR_ERR(mbox->ipc);
298 mbox->base = devm_ioremap_resource(dev, res);
299 if (IS_ERR(mbox->base)) {
301 return PTR_ERR(mbox->base);
304 err = devm_request_irq(dev, mbox->irq, hi6220_mbox_interrupt, 0,
305 dev_name(dev), mbox);
312 mbox->controller.dev = dev;
313 mbox->controller.chans = &mbox->chan[0];
314 mbox->controller.num_chans = mbox->chan_num;
315 mbox->controller.ops = &hi6220_mbox_ops;
316 mbox->controller.of_xlate = hi6220_mbox_xlate;
318 for (i = 0; i < mbox->chan_num; i++) {
319 mbox->chan[i].con_priv = &mbox->mchan[i];
320 mbox->irq_map_chan[i] = NULL;
322 mbox->mchan[i].parent = mbox;
323 mbox->mchan[i].slot = i;
327 writel(0x0, ACK_INT_MSK_REG(mbox->ipc));
328 writel(~0x0, ACK_INT_CLR_REG(mbox->ipc));
331 if (of_find_property(node, "hi6220,mbox-tx-noirq", NULL))
332 mbox->tx_irq_mode = false;
334 mbox->tx_irq_mode = true;
336 if (mbox->tx_irq_mode)
337 mbox->controller.txdone_irq = true;
339 mbox->controller.txdone_poll = true;
340 mbox->controller.txpoll_period = 5;
343 err = devm_mbox_controller_register(dev, &mbox->controller);
349 platform_set_drvdata(pdev, mbox);
356 .name = "hi6220-mbox",