projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| 75c86e74 GL |
24 | #include <asm/ps3.h> |
| 25 | ||
| 26 | struct 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 | ||
| ea1547d3 GL |
34 | struct ps3_vuart_work { |
| 35 | struct work_struct work; | |
| 36 | unsigned long trigger; | |
| 37 | spinlock_t lock; | |
| 38 | struct ps3_vuart_port_device* dev; /* to convert work to device */ | |
| 39 | }; | |
| 40 | ||
| 75c86e74 GL |
41 | /** |
| 42 | * struct ps3_vuart_port_priv - private vuart device data. | |
| 43 | */ | |
| 44 | ||
| 45 | struct ps3_vuart_port_priv { | |
| 46 | unsigned int port_number; | |
| 47 | u64 interrupt_mask; | |
| 48 | ||
| 49 | struct { | |
| 50 | spinlock_t lock; | |
| 51 | struct list_head head; | |
| 52 | } tx_list; | |
| 53 | struct { | |
| 54 | unsigned long bytes_held; | |
| 55 | spinlock_t lock; | |
| 56 | struct list_head head; | |
| 57 | } rx_list; | |
| 58 | struct ps3_vuart_stats stats; | |
| ea1547d3 | 59 | struct ps3_vuart_work work; |
| 75c86e74 GL |
60 | }; |
| 61 | ||
| 74e95d5d GL |
62 | /** |
| 63 | * struct ps3_vuart_port_driver - a driver for a device on a vuart port | |
| 64 | */ | |
| 65 | ||
| 66 | struct ps3_vuart_port_driver { | |
| 67 | enum ps3_match_id match_id; | |
| 68 | struct device_driver core; | |
| 69 | int (*probe)(struct ps3_vuart_port_device *); | |
| 70 | int (*remove)(struct ps3_vuart_port_device *); | |
| 5b8e8ee6 | 71 | void (*shutdown)(struct ps3_vuart_port_device *); |
| 74e95d5d GL |
72 | int (*tx_event)(struct ps3_vuart_port_device *dev); |
| 73 | int (*rx_event)(struct ps3_vuart_port_device *dev); | |
| 74 | int (*disconnect_event)(struct ps3_vuart_port_device *dev); | |
| 75 | /* int (*suspend)(struct ps3_vuart_port_device *, pm_message_t); */ | |
| 76 | /* int (*resume)(struct ps3_vuart_port_device *); */ | |
| 77 | }; | |
| 78 | ||
| 74e95d5d GL |
79 | int ps3_vuart_port_driver_register(struct ps3_vuart_port_driver *drv); |
| 80 | void ps3_vuart_port_driver_unregister(struct ps3_vuart_port_driver *drv); | |
| 97ec1675 | 81 | |
| 74e95d5d GL |
82 | static inline struct ps3_vuart_port_driver *to_ps3_vuart_port_driver( |
| 83 | struct device_driver *_drv) | |
| 84 | { | |
| 85 | return container_of(_drv, struct ps3_vuart_port_driver, core); | |
| 86 | } | |
| 87 | static inline struct ps3_vuart_port_device *to_ps3_vuart_port_device( | |
| 88 | struct device *_dev) | |
| 89 | { | |
| 90 | return container_of(_dev, struct ps3_vuart_port_device, core); | |
| 91 | } | |
| ea1547d3 GL |
92 | static inline struct ps3_vuart_port_device *ps3_vuart_work_to_port_device( |
| 93 | struct work_struct *_work) | |
| 94 | { | |
| 95 | struct ps3_vuart_work *vw = container_of(_work, struct ps3_vuart_work, | |
| 96 | work); | |
| 97 | return vw->dev; | |
| 98 | } | |
| 99 | ||
| 100 | int ps3_vuart_write(struct ps3_vuart_port_device *dev, const void* buf, | |
| 101 | unsigned int bytes); | |
| 102 | int ps3_vuart_read(struct ps3_vuart_port_device *dev, void* buf, | |
| 103 | unsigned int bytes); | |
| 104 | int ps3_vuart_read_async(struct ps3_vuart_port_device *dev, work_func_t func, | |
| 105 | unsigned int bytes); | |
| 106 | void ps3_vuart_cancel_async(struct ps3_vuart_port_device *dev); | |
| 107 | void ps3_vuart_clear_rx_bytes(struct ps3_vuart_port_device *dev, | |
| 108 | unsigned int bytes); | |
| 74e95d5d | 109 | |
| 74e95d5d | 110 | #endif |