blob: eb7f6d94a8908d0bd9b70561511d164e386c93b8 [file] [log] [blame]
Geoff Levand74e95d5d2006-12-08 18:27:47 -08001/*
2 * PS3 virtual uart
3 *
4 * Copyright (C) 2006 Sony Computer Entertainment Inc.
5 * Copyright 2006 Sony Corp.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#if !defined(_PS3_VUART_H)
22#define _PS3_VUART_H
23
Geoff Levand75c86e72007-02-13 17:37:28 -080024#include <asm/ps3.h>
25
26struct ps3_vuart_stats {
27 unsigned long bytes_written;
28 unsigned long bytes_read;
29 unsigned long tx_interrupts;
30 unsigned long rx_interrupts;
31 unsigned long disconnect_interrupts;
32};
33
Geoff Levandea1547d2007-02-06 14:23:47 -080034struct ps3_vuart_work {
35 struct work_struct work;
36 unsigned long trigger;
Geoff Levand7626e782007-06-16 08:01:06 +100037 struct ps3_system_bus_device *dev; /* to convert work to device */
Geoff Levand75c86e72007-02-13 17:37:28 -080038};
39
Geoff Levand74e95d5d2006-12-08 18:27:47 -080040/**
41 * struct ps3_vuart_port_driver - a driver for a device on a vuart port
42 */
43
44struct ps3_vuart_port_driver {
Geoff Levand7626e782007-06-16 08:01:06 +100045 struct ps3_system_bus_driver core;
46 int (*probe)(struct ps3_system_bus_device *);
47 int (*remove)(struct ps3_system_bus_device *);
48 void (*shutdown)(struct ps3_system_bus_device *);
49 void (*work)(struct ps3_system_bus_device *);
50 /* int (*tx_event)(struct ps3_system_bus_device *dev); */
51 /* int (*rx_event)(struct ps3_system_bus_device *dev); */
52 /* int (*disconnect_event)(struct ps3_system_bus_device *dev); */
53 /* int (*suspend)(struct ps3_system_bus_device *, pm_message_t); */
54 /* int (*resume)(struct ps3_system_bus_device *); */
Geoff Levand74e95d5d2006-12-08 18:27:47 -080055};
56
Geoff Levand74e95d5d2006-12-08 18:27:47 -080057int ps3_vuart_port_driver_register(struct ps3_vuart_port_driver *drv);
58void ps3_vuart_port_driver_unregister(struct ps3_vuart_port_driver *drv);
Geoff Levand97ec1672007-01-30 15:20:30 -080059
Geoff Levand7626e782007-06-16 08:01:06 +100060static inline struct ps3_vuart_port_driver *
61 ps3_system_bus_dev_to_vuart_drv(struct ps3_system_bus_device *_dev)
Geoff Levand74e95d5d2006-12-08 18:27:47 -080062{
Geoff Levand7626e782007-06-16 08:01:06 +100063 struct ps3_system_bus_driver *sbd =
64 ps3_system_bus_dev_to_system_bus_drv(_dev);
65 BUG_ON(!sbd);
66 return container_of(sbd, struct ps3_vuart_port_driver, core);
Geoff Levand74e95d5d2006-12-08 18:27:47 -080067}
Geoff Levand7626e782007-06-16 08:01:06 +100068static inline struct ps3_system_bus_device *ps3_vuart_work_to_system_bus_dev(
Geoff Levandea1547d2007-02-06 14:23:47 -080069 struct work_struct *_work)
70{
71 struct ps3_vuart_work *vw = container_of(_work, struct ps3_vuart_work,
72 work);
73 return vw->dev;
74}
75
Geoff Levand7626e782007-06-16 08:01:06 +100076int ps3_vuart_write(struct ps3_system_bus_device *dev, const void *buf,
Geoff Levandea1547d2007-02-06 14:23:47 -080077 unsigned int bytes);
Geoff Levand7626e782007-06-16 08:01:06 +100078int ps3_vuart_read(struct ps3_system_bus_device *dev, void *buf,
Geoff Levandea1547d2007-02-06 14:23:47 -080079 unsigned int bytes);
Geoff Levand7626e782007-06-16 08:01:06 +100080int ps3_vuart_read_async(struct ps3_system_bus_device *dev, unsigned int bytes);
81void ps3_vuart_cancel_async(struct ps3_system_bus_device *dev);
82void ps3_vuart_clear_rx_bytes(struct ps3_system_bus_device *dev,
Geoff Levandea1547d2007-02-06 14:23:47 -080083 unsigned int bytes);
Geoff Levand74e95d5d2006-12-08 18:27:47 -080084
Geoff Levand74e95d5d2006-12-08 18:27:47 -080085#endif