71 static void dw_hdmi_write(struct dw_hdmi_cec *cec, u8 val, int offset)  in dw_hdmi_write()  argument
73 	cec->ops->write(cec->hdmi, val, offset);  in dw_hdmi_write()
76 static u8 dw_hdmi_read(struct dw_hdmi_cec *cec, int offset)  in dw_hdmi_read()  argument
78 	return cec->ops->read(cec->hdmi, offset);  in dw_hdmi_read()
83 	struct dw_hdmi_cec *cec = cec_get_drvdata(adap);  in dw_hdmi_cec_log_addr()  local
86 		cec->addresses = 0;  in dw_hdmi_cec_log_addr()
88 		cec->addresses |= BIT(logical_addr) | BIT(15);  in dw_hdmi_cec_log_addr()
90 	dw_hdmi_write(cec, cec->addresses & 255, HDMI_CEC_ADDR_L);  in dw_hdmi_cec_log_addr()
91 	dw_hdmi_write(cec, cec->addresses >> 8, HDMI_CEC_ADDR_H);  in dw_hdmi_cec_log_addr()
99 	struct dw_hdmi_cec *cec = cec_get_drvdata(adap);  in dw_hdmi_cec_transmit()  local
116 		dw_hdmi_write(cec, msg->msg[i], HDMI_CEC_TX_DATA0 + i);  in dw_hdmi_cec_transmit()
118 	dw_hdmi_write(cec, msg->len, HDMI_CEC_TX_CNT);  in dw_hdmi_cec_transmit()
119 	dw_hdmi_write(cec, ctrl | CEC_CTRL_START, HDMI_CEC_CTRL);  in dw_hdmi_cec_transmit()
127 	struct dw_hdmi_cec *cec = cec_get_drvdata(adap);  in dw_hdmi_cec_hardirq()  local
128 	unsigned int stat = dw_hdmi_read(cec, HDMI_IH_CEC_STAT0);  in dw_hdmi_cec_hardirq()
134 	dw_hdmi_write(cec, stat, HDMI_IH_CEC_STAT0);  in dw_hdmi_cec_hardirq()
137 		cec->tx_status = CEC_TX_STATUS_ERROR;  in dw_hdmi_cec_hardirq()
138 		cec->tx_done = true;  in dw_hdmi_cec_hardirq()
141 		cec->tx_status = CEC_TX_STATUS_OK;  in dw_hdmi_cec_hardirq()
142 		cec->tx_done = true;  in dw_hdmi_cec_hardirq()
145 		cec->tx_status = CEC_TX_STATUS_NACK;  in dw_hdmi_cec_hardirq()
146 		cec->tx_done = true;  in dw_hdmi_cec_hardirq()
153 		len = dw_hdmi_read(cec, HDMI_CEC_RX_CNT);  in dw_hdmi_cec_hardirq()
154 		if (len > sizeof(cec->rx_msg.msg))  in dw_hdmi_cec_hardirq()
155 			len = sizeof(cec->rx_msg.msg);  in dw_hdmi_cec_hardirq()
158 			cec->rx_msg.msg[i] =  in dw_hdmi_cec_hardirq()
159 				dw_hdmi_read(cec, HDMI_CEC_RX_DATA0 + i);  in dw_hdmi_cec_hardirq()
161 		dw_hdmi_write(cec, 0, HDMI_CEC_LOCK);  in dw_hdmi_cec_hardirq()
163 		cec->rx_msg.len = len;  in dw_hdmi_cec_hardirq()
165 		cec->rx_done = true;  in dw_hdmi_cec_hardirq()
176 	struct dw_hdmi_cec *cec = cec_get_drvdata(adap);  in dw_hdmi_cec_thread()  local
178 	if (cec->tx_done) {  in dw_hdmi_cec_thread()
179 		cec->tx_done = false;  in dw_hdmi_cec_thread()
180 		cec_transmit_attempt_done(adap, cec->tx_status);  in dw_hdmi_cec_thread()
182 	if (cec->rx_done) {  in dw_hdmi_cec_thread()
183 		cec->rx_done = false;  in dw_hdmi_cec_thread()
185 		cec_received_msg(adap, &cec->rx_msg);  in dw_hdmi_cec_thread()
192 	struct dw_hdmi_cec *cec = cec_get_drvdata(adap);  in dw_hdmi_cec_enable()  local
195 		dw_hdmi_write(cec, ~0, HDMI_CEC_MASK);  in dw_hdmi_cec_enable()
196 		dw_hdmi_write(cec, ~0, HDMI_IH_MUTE_CEC_STAT0);  in dw_hdmi_cec_enable()
197 		dw_hdmi_write(cec, 0, HDMI_CEC_POLARITY);  in dw_hdmi_cec_enable()
199 		cec->ops->disable(cec->hdmi);  in dw_hdmi_cec_enable()
203 		dw_hdmi_write(cec, 0, HDMI_CEC_CTRL);  in dw_hdmi_cec_enable()
204 		dw_hdmi_write(cec, ~0, HDMI_IH_CEC_STAT0);  in dw_hdmi_cec_enable()
205 		dw_hdmi_write(cec, 0, HDMI_CEC_LOCK);  in dw_hdmi_cec_enable()
207 		dw_hdmi_cec_log_addr(cec->adap, CEC_LOG_ADDR_INVALID);  in dw_hdmi_cec_enable()
209 		cec->ops->enable(cec->hdmi);  in dw_hdmi_cec_enable()
213 		dw_hdmi_write(cec, irqs, HDMI_CEC_POLARITY);  in dw_hdmi_cec_enable()
214 		dw_hdmi_write(cec, ~irqs, HDMI_CEC_MASK);  in dw_hdmi_cec_enable()
215 		dw_hdmi_write(cec, ~irqs, HDMI_IH_MUTE_CEC_STAT0);  in dw_hdmi_cec_enable()
228 	struct dw_hdmi_cec *cec = data;  in dw_hdmi_cec_del()  local
230 	cec_delete_adapter(cec->adap);  in dw_hdmi_cec_del()
236 	struct dw_hdmi_cec *cec;  in dw_hdmi_cec_probe()  local
247 	cec = devm_kzalloc(&pdev->dev, sizeof(*cec), GFP_KERNEL);  in dw_hdmi_cec_probe()
248 	if (!cec)  in dw_hdmi_cec_probe()
251 	cec->irq = data->irq;  in dw_hdmi_cec_probe()
252 	cec->ops = data->ops;  in dw_hdmi_cec_probe()
253 	cec->hdmi = data->hdmi;  in dw_hdmi_cec_probe()
255 	platform_set_drvdata(pdev, cec);  in dw_hdmi_cec_probe()
257 	dw_hdmi_write(cec, 0, HDMI_CEC_TX_CNT);  in dw_hdmi_cec_probe()
258 	dw_hdmi_write(cec, ~0, HDMI_CEC_MASK);  in dw_hdmi_cec_probe()
259 	dw_hdmi_write(cec, ~0, HDMI_IH_MUTE_CEC_STAT0);  in dw_hdmi_cec_probe()
260 	dw_hdmi_write(cec, 0, HDMI_CEC_POLARITY);  in dw_hdmi_cec_probe()
262 	cec->adap = cec_allocate_adapter(&dw_hdmi_cec_ops, cec, "dw_hdmi",  in dw_hdmi_cec_probe()
266 	if (IS_ERR(cec->adap))  in dw_hdmi_cec_probe()
267 		return PTR_ERR(cec->adap);  in dw_hdmi_cec_probe()
270 	cec->adap->owner = THIS_MODULE;  in dw_hdmi_cec_probe()
272 	ret = devm_add_action_or_reset(&pdev->dev, dw_hdmi_cec_del, cec);  in dw_hdmi_cec_probe()
276 	ret = devm_request_threaded_irq(&pdev->dev, cec->irq,  in dw_hdmi_cec_probe()
279 					"dw-hdmi-cec", cec->adap);  in dw_hdmi_cec_probe()
283 	cec->notify = cec_notifier_cec_adap_register(pdev->dev.parent,  in dw_hdmi_cec_probe()
284 						     NULL, cec->adap);  in dw_hdmi_cec_probe()
285 	if (!cec->notify)  in dw_hdmi_cec_probe()
288 	ret = cec_register_adapter(cec->adap, pdev->dev.parent);  in dw_hdmi_cec_probe()
290 		cec_notifier_cec_adap_unregister(cec->notify, cec->adap);  in dw_hdmi_cec_probe()
298 	devm_remove_action(&pdev->dev, dw_hdmi_cec_del, cec);  in dw_hdmi_cec_probe()
305 	struct dw_hdmi_cec *cec = platform_get_drvdata(pdev);  in dw_hdmi_cec_remove()  local
307 	cec_notifier_cec_adap_unregister(cec->notify, cec->adap);  in dw_hdmi_cec_remove()
308 	cec_unregister_adapter(cec->adap);  in dw_hdmi_cec_remove()
313 	struct dw_hdmi_cec *cec = dev_get_drvdata(dev);  in dw_hdmi_cec_resume()  local
316 	dw_hdmi_write(cec, cec->addresses & 255, HDMI_CEC_ADDR_L);  in dw_hdmi_cec_resume()
317 	dw_hdmi_write(cec, cec->addresses >> 8, HDMI_CEC_ADDR_H);  in dw_hdmi_cec_resume()
320 	dw_hdmi_write(cec, cec->regs_polarity, HDMI_CEC_POLARITY);  in dw_hdmi_cec_resume()
321 	dw_hdmi_write(cec, cec->regs_mask, HDMI_CEC_MASK);  in dw_hdmi_cec_resume()
322 	dw_hdmi_write(cec, cec->regs_mute_stat0, HDMI_IH_MUTE_CEC_STAT0);  in dw_hdmi_cec_resume()
329 	struct dw_hdmi_cec *cec = dev_get_drvdata(dev);  in dw_hdmi_cec_suspend()  local
332 	 cec->regs_polarity = dw_hdmi_read(cec, HDMI_CEC_POLARITY);  in dw_hdmi_cec_suspend()
333 	 cec->regs_mask = dw_hdmi_read(cec, HDMI_CEC_MASK);  in dw_hdmi_cec_suspend()
334 	 cec->regs_mute_stat0 = dw_hdmi_read(cec, HDMI_IH_MUTE_CEC_STAT0);  in dw_hdmi_cec_suspend()