Lines Matching refs:ec_dev
41 struct cros_ec_device *ec_dev = data; in cros_ec_irq_handler() local
43 ec_dev->last_event_time = cros_ec_get_time_ns(); in cros_ec_irq_handler()
58 static bool cros_ec_handle_event(struct cros_ec_device *ec_dev) in cros_ec_handle_event() argument
64 ret = cros_ec_get_next_event(ec_dev, &wake_event, &ec_has_more_events); in cros_ec_handle_event()
71 if (wake_event && device_may_wakeup(ec_dev->dev)) in cros_ec_handle_event()
72 pm_wakeup_event(ec_dev->dev, 0); in cros_ec_handle_event()
75 blocking_notifier_call_chain(&ec_dev->event_notifier, in cros_ec_handle_event()
76 0, ec_dev); in cros_ec_handle_event()
90 struct cros_ec_device *ec_dev = data; in cros_ec_irq_thread() local
94 ec_has_more_events = cros_ec_handle_event(ec_dev); in cros_ec_irq_thread()
101 static int cros_ec_sleep_event(struct cros_ec_device *ec_dev, u8 sleep_event) in cros_ec_sleep_event() argument
115 if (ec_dev->host_sleep_v1) { in cros_ec_sleep_event()
118 ec_dev->suspend_timeout_ms; in cros_ec_sleep_event()
134 ret = cros_ec_cmd_xfer_status(ec_dev, &buf.msg); in cros_ec_sleep_event()
136 if (ret >= 0 && ec_dev->host_sleep_v1 && in cros_ec_sleep_event()
139 ec_dev->last_resume_result = in cros_ec_sleep_event()
156 struct cros_ec_device *ec_dev = container_of(nb, struct cros_ec_device, in cros_ec_ready_event() local
158 u32 host_event = cros_ec_get_host_event(ec_dev); in cros_ec_ready_event()
161 mutex_lock(&ec_dev->lock); in cros_ec_ready_event()
162 cros_ec_query_all(ec_dev); in cros_ec_ready_event()
163 mutex_unlock(&ec_dev->lock); in cros_ec_ready_event()
179 int cros_ec_register(struct cros_ec_device *ec_dev) in cros_ec_register() argument
181 struct device *dev = ec_dev->dev; in cros_ec_register()
184 BLOCKING_INIT_NOTIFIER_HEAD(&ec_dev->event_notifier); in cros_ec_register()
186 ec_dev->max_request = sizeof(struct ec_params_hello); in cros_ec_register()
187 ec_dev->max_response = sizeof(struct ec_response_get_protocol_info); in cros_ec_register()
188 ec_dev->max_passthru = 0; in cros_ec_register()
189 ec_dev->ec = NULL; in cros_ec_register()
190 ec_dev->pd = NULL; in cros_ec_register()
191 ec_dev->suspend_timeout_ms = EC_HOST_SLEEP_TIMEOUT_DEFAULT; in cros_ec_register()
193 ec_dev->din = devm_kzalloc(dev, ec_dev->din_size, GFP_KERNEL); in cros_ec_register()
194 if (!ec_dev->din) in cros_ec_register()
197 ec_dev->dout = devm_kzalloc(dev, ec_dev->dout_size, GFP_KERNEL); in cros_ec_register()
198 if (!ec_dev->dout) in cros_ec_register()
201 mutex_init(&ec_dev->lock); in cros_ec_register()
203 err = cros_ec_query_all(ec_dev); in cros_ec_register()
209 if (ec_dev->irq > 0) { in cros_ec_register()
210 err = devm_request_threaded_irq(dev, ec_dev->irq, in cros_ec_register()
214 "chromeos-ec", ec_dev); in cros_ec_register()
217 ec_dev->irq, err); in cros_ec_register()
223 ec_dev->ec = platform_device_register_data(ec_dev->dev, "cros-ec-dev", in cros_ec_register()
226 if (IS_ERR(ec_dev->ec)) { in cros_ec_register()
227 dev_err(ec_dev->dev, in cros_ec_register()
229 return PTR_ERR(ec_dev->ec); in cros_ec_register()
232 if (ec_dev->max_passthru) { in cros_ec_register()
241 ec_dev->pd = platform_device_register_data(ec_dev->dev, in cros_ec_register()
245 if (IS_ERR(ec_dev->pd)) { in cros_ec_register()
246 dev_err(ec_dev->dev, in cros_ec_register()
248 err = PTR_ERR(ec_dev->pd); in cros_ec_register()
265 err = cros_ec_sleep_event(ec_dev, 0); in cros_ec_register()
267 dev_dbg(ec_dev->dev, "Error %d clearing sleep event to ec\n", in cros_ec_register()
270 if (ec_dev->mkbp_event_supported) { in cros_ec_register()
275 ec_dev->notifier_ready.notifier_call = cros_ec_ready_event; in cros_ec_register()
276 err = blocking_notifier_chain_register(&ec_dev->event_notifier, in cros_ec_register()
277 &ec_dev->notifier_ready); in cros_ec_register()
288 if (ec_dev->mkbp_event_supported) in cros_ec_register()
289 cros_ec_irq_thread(0, ec_dev); in cros_ec_register()
293 platform_device_unregister(ec_dev->ec); in cros_ec_register()
294 platform_device_unregister(ec_dev->pd); in cros_ec_register()
307 void cros_ec_unregister(struct cros_ec_device *ec_dev) in cros_ec_unregister() argument
309 if (ec_dev->pd) in cros_ec_unregister()
310 platform_device_unregister(ec_dev->pd); in cros_ec_unregister()
311 platform_device_unregister(ec_dev->ec); in cros_ec_unregister()
324 int cros_ec_suspend(struct cros_ec_device *ec_dev) in cros_ec_suspend() argument
326 struct device *dev = ec_dev->dev; in cros_ec_suspend()
334 ret = cros_ec_sleep_event(ec_dev, sleep_event); in cros_ec_suspend()
336 dev_dbg(ec_dev->dev, "Error %d sending suspend event to ec\n", in cros_ec_suspend()
340 ec_dev->wake_enabled = !enable_irq_wake(ec_dev->irq); in cros_ec_suspend()
342 ec_dev->wake_enabled = false; in cros_ec_suspend()
344 disable_irq(ec_dev->irq); in cros_ec_suspend()
345 ec_dev->suspended = true; in cros_ec_suspend()
351 static void cros_ec_report_events_during_suspend(struct cros_ec_device *ec_dev) in cros_ec_report_events_during_suspend() argument
355 while (ec_dev->mkbp_event_supported && in cros_ec_report_events_during_suspend()
356 cros_ec_get_next_event(ec_dev, &wake_event, NULL) > 0) { in cros_ec_report_events_during_suspend()
357 blocking_notifier_call_chain(&ec_dev->event_notifier, in cros_ec_report_events_during_suspend()
358 1, ec_dev); in cros_ec_report_events_during_suspend()
360 if (wake_event && device_may_wakeup(ec_dev->dev)) in cros_ec_report_events_during_suspend()
361 pm_wakeup_event(ec_dev->dev, 0); in cros_ec_report_events_during_suspend()
373 int cros_ec_resume(struct cros_ec_device *ec_dev) in cros_ec_resume() argument
378 ec_dev->suspended = false; in cros_ec_resume()
379 enable_irq(ec_dev->irq); in cros_ec_resume()
385 ret = cros_ec_sleep_event(ec_dev, sleep_event); in cros_ec_resume()
387 dev_dbg(ec_dev->dev, "Error %d sending resume event to ec\n", in cros_ec_resume()
390 if (ec_dev->wake_enabled) in cros_ec_resume()
391 disable_irq_wake(ec_dev->irq); in cros_ec_resume()
397 cros_ec_report_events_during_suspend(ec_dev); in cros_ec_resume()