51 static int ec_get_version(struct cros_ec_dev *ec, char *str, int maxlen)  in ec_get_version()  argument
65 	msg->command = EC_CMD_GET_VERSION + ec->cmd_offset;  in ec_get_version()
69 	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);  in ec_get_version()
95 static int cros_ec_check_features(struct cros_ec_dev *ec, int feature)  in cros_ec_check_features()  argument
100 	if (ec->features[0] == -1U && ec->features[1] == -1U) {  in cros_ec_check_features()
103 		msg = kmalloc(sizeof(*msg) + sizeof(ec->features), GFP_KERNEL);  in cros_ec_check_features()
108 		msg->command = EC_CMD_GET_FEATURES + ec->cmd_offset;  in cros_ec_check_features()
109 		msg->insize = sizeof(ec->features);  in cros_ec_check_features()
112 		ret = cros_ec_cmd_xfer(ec->ec_dev, msg);  in cros_ec_check_features()
114 			dev_warn(ec->dev, "cannot get EC features: %d/%d\n",  in cros_ec_check_features()
116 			memset(ec->features, 0, sizeof(ec->features));  in cros_ec_check_features()
118 			memcpy(ec->features, msg->data, sizeof(ec->features));  in cros_ec_check_features()
121 		dev_dbg(ec->dev, "EC features %08x %08x\n",  in cros_ec_check_features()
122 			ec->features[0], ec->features[1]);  in cros_ec_check_features()
127 	return ec->features[feature / 32] & EC_FEATURE_MASK_0(feature);  in cros_ec_check_features()
133 	struct cros_ec_dev *ec = container_of(inode->i_cdev,  in ec_device_open()  local
135 	filp->private_data = ec;  in ec_device_open()
148 	struct cros_ec_dev *ec = filp->private_data;  in ec_device_read()  local
157 	ret = ec_get_version(ec, msg, sizeof(msg));  in ec_device_read()
171 static long ec_device_ioctl_xcmd(struct cros_ec_dev *ec, void __user *arg)  in ec_device_ioctl_xcmd()  argument
200 	s_cmd->command += ec->cmd_offset;  in ec_device_ioctl_xcmd()
201 	ret = cros_ec_cmd_xfer(ec->ec_dev, s_cmd);  in ec_device_ioctl_xcmd()
213 static long ec_device_ioctl_readmem(struct cros_ec_dev *ec, void __user *arg)  in ec_device_ioctl_readmem()  argument
215 	struct cros_ec_device *ec_dev = ec->ec_dev;  in ec_device_ioctl_readmem()
240 	struct cros_ec_dev *ec = filp->private_data;  in ec_device_ioctl()  local
247 		return ec_device_ioctl_xcmd(ec, (void __user *)arg);  in ec_device_ioctl()
249 		return ec_device_ioctl_readmem(ec, (void __user *)arg);  in ec_device_ioctl()
266 static void cros_ec_sensors_register(struct cros_ec_dev *ec)  in cros_ec_sensors_register()  argument
286 	msg->command = EC_CMD_MOTION_SENSE_CMD + ec->cmd_offset;  in cros_ec_sensors_register()
293 	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);  in cros_ec_sensors_register()
295 		dev_warn(ec->dev, "cannot get EC sensor information: %d/%d\n",  in cros_ec_sensors_register()
319 		ret = cros_ec_cmd_xfer(ec->ec_dev, msg);  in cros_ec_sensors_register()
321 			dev_warn(ec->dev, "no info for EC sensor %d : %d/%d\n",  in cros_ec_sensors_register()
348 			dev_warn(ec->dev, "unknown type %d\n", resp->info.type);  in cros_ec_sensors_register()
362 		ec->has_kb_wake_angle = true;  in cros_ec_sensors_register()
364 	if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE_FIFO)) {  in cros_ec_sensors_register()
369 	ret = mfd_add_devices(ec->dev, 0, sensor_cells, id,  in cros_ec_sensors_register()
372 		dev_err(ec->dev, "failed to add EC sensors\n");  in cros_ec_sensors_register()
398 	struct cros_ec_dev *ec = devm_kzalloc(dev, sizeof(*ec), GFP_KERNEL);  in ec_device_probe()  local
400 	if (!ec)  in ec_device_probe()
403 	dev_set_drvdata(dev, ec);  in ec_device_probe()
404 	ec->ec_dev = dev_get_drvdata(dev->parent);  in ec_device_probe()
405 	ec->dev = dev;  in ec_device_probe()
406 	ec->cmd_offset = ec_platform->cmd_offset;  in ec_device_probe()
407 	ec->features[0] = -1U; /* Not cached yet */  in ec_device_probe()
408 	ec->features[1] = -1U; /* Not cached yet */  in ec_device_probe()
409 	device_initialize(&ec->class_dev);  in ec_device_probe()
410 	cdev_init(&ec->cdev, &fops);  in ec_device_probe()
417 	ec->class_dev.devt = MKDEV(ec_major, pdev->id);  in ec_device_probe()
418 	ec->class_dev.class = &cros_class;  in ec_device_probe()
419 	ec->class_dev.parent = dev;  in ec_device_probe()
421 	retval = dev_set_name(&ec->class_dev, "%s", ec_platform->ec_name);  in ec_device_probe()
428 	if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE))  in ec_device_probe()
429 		cros_ec_sensors_register(ec);  in ec_device_probe()
432 	if (cros_ec_check_features(ec, EC_FEATURE_CEC)) {  in ec_device_probe()
433 		retval = mfd_add_devices(ec->dev, PLATFORM_DEVID_AUTO,  in ec_device_probe()
438 			dev_err(ec->dev,  in ec_device_probe()
444 	if (cros_ec_check_features(ec, EC_FEATURE_RTC)) {  in ec_device_probe()
445 		retval = mfd_add_devices(ec->dev, PLATFORM_DEVID_AUTO,  in ec_device_probe()
450 			dev_err(ec->dev,  in ec_device_probe()
456 	if (cros_ec_check_features(ec, EC_FEATURE_USB_PD)) {  in ec_device_probe()
457 		retval = mfd_add_devices(ec->dev, PLATFORM_DEVID_AUTO,  in ec_device_probe()
462 			dev_err(ec->dev,  in ec_device_probe()
468 	lb_manual_suspend_ctrl(ec, 1);  in ec_device_probe()
471 	retval = cdev_device_add(&ec->cdev, &ec->class_dev);  in ec_device_probe()
477 	if (cros_ec_debugfs_init(ec))  in ec_device_probe()
483 	put_device(&ec->class_dev);  in ec_device_probe()
489 	struct cros_ec_dev *ec = dev_get_drvdata(&pdev->dev);  in ec_device_remove()  local
492 	lb_manual_suspend_ctrl(ec, 0);  in ec_device_remove()
494 	cros_ec_debugfs_remove(ec);  in ec_device_remove()
496 	cdev_del(&ec->cdev);  in ec_device_remove()
497 	device_unregister(&ec->class_dev);  in ec_device_remove()
503 	struct cros_ec_dev *ec = dev_get_drvdata(&pdev->dev);  in ec_device_shutdown()  local
506 	cros_ec_debugfs_remove(ec);  in ec_device_shutdown()
517 	struct cros_ec_dev *ec = dev_get_drvdata(dev);  in ec_device_suspend()  local
519 	cros_ec_debugfs_suspend(ec);  in ec_device_suspend()
521 	lb_suspend(ec);  in ec_device_suspend()
528 	struct cros_ec_dev *ec = dev_get_drvdata(dev);  in ec_device_resume()  local
530 	cros_ec_debugfs_resume(ec);  in ec_device_resume()
532 	lb_resume(ec);  in ec_device_resume()