90 lines
2.9 KiB
C
90 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* PS3 virtual uart
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*
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* Copyright (C) 2006 Sony Computer Entertainment Inc.
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* Copyright 2006 Sony Corp.
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*/
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#if !defined(_PS3_VUART_H)
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#define _PS3_VUART_H
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#include <asm/ps3.h>
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struct ps3_vuart_stats {
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unsigned long bytes_written;
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unsigned long bytes_read;
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unsigned long tx_interrupts;
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unsigned long rx_interrupts;
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unsigned long disconnect_interrupts;
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};
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struct ps3_vuart_work {
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struct work_struct work;
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unsigned long trigger;
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struct ps3_system_bus_device *dev; /* to convert work to device */
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};
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/**
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* struct ps3_vuart_port_driver - a driver for a device on a vuart port
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*/
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struct ps3_vuart_port_driver {
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struct ps3_system_bus_driver core;
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int (*probe)(struct ps3_system_bus_device *);
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int (*remove)(struct ps3_system_bus_device *);
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void (*shutdown)(struct ps3_system_bus_device *);
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void (*work)(struct ps3_system_bus_device *);
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/* int (*tx_event)(struct ps3_system_bus_device *dev); */
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/* int (*rx_event)(struct ps3_system_bus_device *dev); */
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/* int (*disconnect_event)(struct ps3_system_bus_device *dev); */
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/* int (*suspend)(struct ps3_system_bus_device *, pm_message_t); */
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/* int (*resume)(struct ps3_system_bus_device *); */
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};
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int ps3_vuart_port_driver_register(struct ps3_vuart_port_driver *drv);
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void ps3_vuart_port_driver_unregister(struct ps3_vuart_port_driver *drv);
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static inline struct ps3_vuart_port_driver *
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ps3_system_bus_dev_to_vuart_drv(struct ps3_system_bus_device *_dev)
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{
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struct ps3_system_bus_driver *sbd =
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ps3_system_bus_dev_to_system_bus_drv(_dev);
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BUG_ON(!sbd);
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return container_of(sbd, struct ps3_vuart_port_driver, core);
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}
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static inline struct ps3_system_bus_device *ps3_vuart_work_to_system_bus_dev(
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struct work_struct *_work)
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{
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struct ps3_vuart_work *vw = container_of(_work, struct ps3_vuart_work,
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work);
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return vw->dev;
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}
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int ps3_vuart_write(struct ps3_system_bus_device *dev, const void *buf,
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unsigned int bytes);
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int ps3_vuart_read(struct ps3_system_bus_device *dev, void *buf,
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unsigned int bytes);
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int ps3_vuart_read_async(struct ps3_system_bus_device *dev, unsigned int bytes);
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void ps3_vuart_cancel_async(struct ps3_system_bus_device *dev);
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void ps3_vuart_clear_rx_bytes(struct ps3_system_bus_device *dev,
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unsigned int bytes);
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struct vuart_triggers {
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unsigned long rx;
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unsigned long tx;
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};
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int ps3_vuart_get_triggers(struct ps3_system_bus_device *dev,
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struct vuart_triggers *trig);
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int ps3_vuart_set_triggers(struct ps3_system_bus_device *dev, unsigned int tx,
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unsigned int rx);
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int ps3_vuart_enable_interrupt_tx(struct ps3_system_bus_device *dev);
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int ps3_vuart_disable_interrupt_tx(struct ps3_system_bus_device *dev);
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int ps3_vuart_enable_interrupt_rx(struct ps3_system_bus_device *dev);
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int ps3_vuart_disable_interrupt_rx(struct ps3_system_bus_device *dev);
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int ps3_vuart_enable_interrupt_disconnect(struct ps3_system_bus_device *dev);
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int ps3_vuart_disable_interrupt_disconnect(struct ps3_system_bus_device *dev);
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#endif
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