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| // SPDX-License-Identifier: GPL-2.0+
| /*
| * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
| */
|
| #include <common.h>
| #include <dm.h>
| #include <errno.h>
| #include <misc.h>
|
| /*
| * Implement a miscellaneous uclass for those do not fit other more
| * general classes. A set of generic read, write and ioctl methods may
| * be used to access the device.
| */
|
| int misc_read(struct udevice *dev, int offset, void *buf, int size)
| {
| const struct misc_ops *ops = device_get_ops(dev);
|
| if (!ops->read)
| return -ENOSYS;
|
| return ops->read(dev, offset, buf, size);
| }
|
| int misc_write(struct udevice *dev, int offset, void *buf, int size)
| {
| const struct misc_ops *ops = device_get_ops(dev);
|
| if (!ops->write)
| return -ENOSYS;
|
| return ops->write(dev, offset, buf, size);
| }
|
| int misc_ioctl(struct udevice *dev, unsigned long request, void *buf)
| {
| const struct misc_ops *ops = device_get_ops(dev);
|
| if (!ops->ioctl)
| return -ENOSYS;
|
| return ops->ioctl(dev, request, buf);
| }
|
| int misc_call(struct udevice *dev, int msgid, void *tx_msg, int tx_size,
| void *rx_msg, int rx_size)
| {
| const struct misc_ops *ops = device_get_ops(dev);
|
| if (!ops->call)
| return -ENOSYS;
|
| return ops->call(dev, msgid, tx_msg, tx_size, rx_msg, rx_size);
| }
|
| UCLASS_DRIVER(misc) = {
| .id = UCLASS_MISC,
| .name = "misc",
| };
|
|
