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 #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 34 struct ps3_vuart_work { 35 struct work_struct work; 36 unsigned long trigger; 37 struct ps3_system_bus_device *dev; /* to convert work to device */ 38 }; 39 40 /** 41 * struct ps3_vuart_port_driver - a driver for a device on a vuart port 42 */ 43 44 struct ps3_vuart_port_driver { 45 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 *); */ 55 }; 56 57 int ps3_vuart_port_driver_register(struct ps3_vuart_port_driver *drv); 58 void ps3_vuart_port_driver_unregister(struct ps3_vuart_port_driver *drv); 59 60 static inline struct ps3_vuart_port_driver * 61 ps3_system_bus_dev_to_vuart_drv(struct ps3_system_bus_device *_dev) 62 { 63 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); 67 } 68 static inline struct ps3_system_bus_device *ps3_vuart_work_to_system_bus_dev( 69 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 76 int ps3_vuart_write(struct ps3_system_bus_device *dev, const void *buf, 77 unsigned int bytes); 78 int ps3_vuart_read(struct ps3_system_bus_device *dev, void *buf, 79 unsigned int bytes); 80 int ps3_vuart_read_async(struct ps3_system_bus_device *dev, unsigned int bytes); 81 void ps3_vuart_cancel_async(struct ps3_system_bus_device *dev); 82 void ps3_vuart_clear_rx_bytes(struct ps3_system_bus_device *dev, 83 unsigned int bytes); 84 85 #endif 86