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74e95d5d GL |
1 | /* |
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 | ||
24 | struct ps3_vuart_stats { | |
25 | unsigned long bytes_written; | |
26 | unsigned long bytes_read; | |
27 | unsigned long tx_interrupts; | |
28 | unsigned long rx_interrupts; | |
29 | unsigned long disconnect_interrupts; | |
30 | }; | |
31 | ||
32 | /** | |
33 | * struct ps3_vuart_port_device - a device on a vuart port | |
34 | */ | |
35 | ||
36 | struct ps3_vuart_port_device { | |
37 | enum ps3_match_id match_id; | |
38 | struct device core; | |
39 | ||
40 | /* private driver variables */ | |
41 | unsigned int port_number; | |
42 | unsigned long interrupt_mask; | |
43 | struct { | |
44 | spinlock_t lock; | |
45 | struct list_head head; | |
46 | } tx_list; | |
47 | struct { | |
48 | unsigned long bytes_held; | |
49 | spinlock_t lock; | |
50 | struct list_head head; | |
51 | } rx_list; | |
52 | struct ps3_vuart_stats stats; | |
53 | }; | |
54 | ||
55 | /** | |
56 | * struct ps3_vuart_port_driver - a driver for a device on a vuart port | |
57 | */ | |
58 | ||
59 | struct ps3_vuart_port_driver { | |
60 | enum ps3_match_id match_id; | |
61 | struct device_driver core; | |
62 | int (*probe)(struct ps3_vuart_port_device *); | |
63 | int (*remove)(struct ps3_vuart_port_device *); | |
64 | int (*tx_event)(struct ps3_vuart_port_device *dev); | |
65 | int (*rx_event)(struct ps3_vuart_port_device *dev); | |
66 | int (*disconnect_event)(struct ps3_vuart_port_device *dev); | |
67 | /* int (*suspend)(struct ps3_vuart_port_device *, pm_message_t); */ | |
68 | /* int (*resume)(struct ps3_vuart_port_device *); */ | |
69 | }; | |
70 | ||
71 | int ps3_vuart_port_device_register(struct ps3_vuart_port_device *dev); | |
72 | int ps3_vuart_port_driver_register(struct ps3_vuart_port_driver *drv); | |
73 | void ps3_vuart_port_driver_unregister(struct ps3_vuart_port_driver *drv); | |
74 | int ps3_vuart_write(struct ps3_vuart_port_device *dev, | |
75 | const void* buf, unsigned int bytes); | |
76 | int ps3_vuart_read(struct ps3_vuart_port_device *dev, void* buf, | |
77 | unsigned int bytes); | |
78 | static inline struct ps3_vuart_port_driver *to_ps3_vuart_port_driver( | |
79 | struct device_driver *_drv) | |
80 | { | |
81 | return container_of(_drv, struct ps3_vuart_port_driver, core); | |
82 | } | |
83 | static inline struct ps3_vuart_port_device *to_ps3_vuart_port_device( | |
84 | struct device *_dev) | |
85 | { | |
86 | return container_of(_dev, struct ps3_vuart_port_device, core); | |
87 | } | |
88 | ||
89 | int ps3_vuart_write(struct ps3_vuart_port_device *dev, const void* buf, | |
90 | unsigned int bytes); | |
91 | int ps3_vuart_read(struct ps3_vuart_port_device *dev, void* buf, | |
92 | unsigned int bytes); | |
93 | ||
94 | #endif |