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/*
* PS3 virtual uart
*
* Copyright (C) 2006 Sony Computer Entertainment Inc.
* Copyright 2006 Sony Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#if !defined(_PS3_VUART_H)
#define _PS3_VUART_H
#include <asm/ps3.h>
struct ps3_vuart_stats {
unsigned long bytes_written;
unsigned long bytes_read;
unsigned long tx_interrupts;
unsigned long rx_interrupts;
unsigned long disconnect_interrupts;
};
struct ps3_vuart_work {
struct work_struct work;
unsigned long trigger;
struct ps3_system_bus_device *dev; /* to convert work to device */
};
/**
* struct ps3_vuart_port_driver - a driver for a device on a vuart port
*/
struct ps3_vuart_port_driver {
struct ps3_system_bus_driver core;
int (*probe)(struct ps3_system_bus_device *);
int (*remove)(struct ps3_system_bus_device *);
void (*shutdown)(struct ps3_system_bus_device *);
void (*work)(struct ps3_system_bus_device *);
/* int (*tx_event)(struct ps3_system_bus_device *dev); */
/* int (*rx_event)(struct ps3_system_bus_device *dev); */
/* int (*disconnect_event)(struct ps3_system_bus_device *dev); */
/* int (*suspend)(struct ps3_system_bus_device *, pm_message_t); */
/* int (*resume)(struct ps3_system_bus_device *); */
};
int ps3_vuart_port_driver_register(struct ps3_vuart_port_driver *drv);
void ps3_vuart_port_driver_unregister(struct ps3_vuart_port_driver *drv);
static inline struct ps3_vuart_port_driver *
ps3_system_bus_dev_to_vuart_drv(struct ps3_system_bus_device *_dev)
{
struct ps3_system_bus_driver *sbd =
ps3_system_bus_dev_to_system_bus_drv(_dev);
BUG_ON(!sbd);
return container_of(sbd, struct ps3_vuart_port_driver, core);
}
static inline struct ps3_system_bus_device *ps3_vuart_work_to_system_bus_dev(
struct work_struct *_work)
{
struct ps3_vuart_work *vw = container_of(_work, struct ps3_vuart_work,
work);
return vw->dev;
}
int ps3_vuart_write(struct ps3_system_bus_device *dev, const void *buf,
unsigned int bytes);
int ps3_vuart_read(struct ps3_system_bus_device *dev, void *buf,
unsigned int bytes);
int ps3_vuart_read_async(struct ps3_system_bus_device *dev, unsigned int bytes);
void ps3_vuart_cancel_async(struct ps3_system_bus_device *dev);
void ps3_vuart_clear_rx_bytes(struct ps3_system_bus_device *dev,
unsigned int bytes);
#endif
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