Lines Matching refs:mbox
90 static void mbox_set_state(struct hi6220_mbox *mbox,
95 status = readl(mbox->base + MBOX_MODE_REG(slot));
97 writel(status, mbox->base + MBOX_MODE_REG(slot));
100 static void mbox_set_mode(struct hi6220_mbox *mbox,
105 mode = readl(mbox->base + MBOX_MODE_REG(slot));
107 writel(mode, mbox->base + MBOX_MODE_REG(slot));
113 struct hi6220_mbox *mbox = mchan->parent;
117 BUG_ON(mbox->tx_irq_mode);
119 state = readl(mbox->base + MBOX_MODE_REG(mchan->slot));
126 struct hi6220_mbox *mbox = mchan->parent;
134 mbox_set_state(mbox, slot, MBOX_STATE_TX);
136 if (mbox->tx_irq_mode)
137 mbox_set_mode(mbox, slot, MBOX_ACK_IRQ);
139 mbox_set_mode(mbox, slot, MBOX_ACK_AUTOMATIC);
142 writel(buf[i], mbox->base + MBOX_DATA_REG(slot) + i * 4);
145 writel(BIT(mchan->dst_irq), DST_INT_RAW_REG(mbox->ipc));
151 struct hi6220_mbox *mbox = p;
157 state = readl(ACK_INT_STAT_REG(mbox->ipc));
159 dev_warn(mbox->dev, "%s: spurious interrupt\n",
168 chan = mbox->irq_map_chan[intr_bit];
170 dev_warn(mbox->dev, "%s: unexpected irq vector %d\n",
180 msg[i] = readl(mbox->base +
187 writel(BIT(mchan->ack_irq), ACK_INT_CLR_REG(mbox->ipc));
188 mbox_set_state(mbox, mchan->slot, MBOX_STATE_IDLE);
197 struct hi6220_mbox *mbox = mchan->parent;
202 writel(BIT(mchan->ack_irq), ACK_INT_ENA_REG(mbox->ipc));
209 struct hi6220_mbox *mbox = mchan->parent;
212 writel(BIT(mchan->ack_irq), ACK_INT_DIS_REG(mbox->ipc));
213 mbox->irq_map_chan[mchan->ack_irq] = NULL;
226 struct hi6220_mbox *mbox = dev_get_drvdata(controller->dev);
234 if (i >= mbox->chan_num || dst_irq >= mbox->chan_num ||
235 ack_irq >= mbox->chan_num) {
236 dev_err(mbox->dev,
243 chan = &mbox->chan[i];
244 if (mbox->irq_map_chan[ack_irq] == (void *)chan) {
245 dev_err(mbox->dev, "Channel in use\n");
253 mbox->irq_map_chan[ack_irq] = (void *)chan;
258 { .compatible = "hisilicon,hi6220-mbox", },
267 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;
290 mbox->ipc = devm_platform_ioremap_resource(pdev, 0);
291 if (IS_ERR(mbox->ipc)) {
293 return PTR_ERR(mbox->ipc);
296 mbox->base = devm_platform_ioremap_resource(pdev, 1);
297 if (IS_ERR(mbox->base)) {
299 return PTR_ERR(mbox->base);
302 err = devm_request_irq(dev, mbox->irq, hi6220_mbox_interrupt, 0,
303 dev_name(dev), mbox);
310 mbox->controller.dev = dev;
311 mbox->controller.chans = &mbox->chan[0];
312 mbox->controller.num_chans = mbox->chan_num;
313 mbox->controller.ops = &hi6220_mbox_ops;
314 mbox->controller.of_xlate = hi6220_mbox_xlate;
316 for (i = 0; i < mbox->chan_num; i++) {
317 mbox->chan[i].con_priv = &mbox->mchan[i];
318 mbox->irq_map_chan[i] = NULL;
320 mbox->mchan[i].parent = mbox;
321 mbox->mchan[i].slot = i;
325 writel(0x0, ACK_INT_MSK_REG(mbox->ipc));
326 writel(~0x0, ACK_INT_CLR_REG(mbox->ipc));
329 mbox->tx_irq_mode = !of_property_read_bool(node, "hi6220,mbox-tx-noirq");
331 if (mbox->tx_irq_mode)
332 mbox->controller.txdone_irq = true;
334 mbox->controller.txdone_poll = true;
335 mbox->controller.txpoll_period = 5;
338 err = devm_mbox_controller_register(dev, &mbox->controller);
344 platform_set_drvdata(pdev, mbox);
351 .name = "hi6220-mbox",