| Geoff Levand | 74e95d5d | 2006-12-08 18:27:47 -0800 | [diff] [blame] | 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 |