diff options
Diffstat (limited to 'drivers/ps3/vuart.h')
| -rw-r--r-- | drivers/ps3/vuart.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/drivers/ps3/vuart.h b/drivers/ps3/vuart.h new file mode 100644 index 000000000000..28fd89f0c8aa --- /dev/null +++ b/drivers/ps3/vuart.h @@ -0,0 +1,94 @@ +/* + * PS3 virtual uart + * + * Copyright (C) 2006 Sony Computer Entertainment Inc. + * Copyright 2006 Sony Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#if !defined(_PS3_VUART_H) +#define _PS3_VUART_H + +struct ps3_vuart_stats { + unsigned long bytes_written; + unsigned long bytes_read; + unsigned long tx_interrupts; + unsigned long rx_interrupts; + unsigned long disconnect_interrupts; +}; + +/** + * struct ps3_vuart_port_device - a device on a vuart port + */ + +struct ps3_vuart_port_device { + enum ps3_match_id match_id; + struct device core; + + /* private driver variables */ + unsigned int port_number; + unsigned long interrupt_mask; + struct { + spinlock_t lock; + struct list_head head; + } tx_list; + struct { + unsigned long bytes_held; + spinlock_t lock; + struct list_head head; + } rx_list; + struct ps3_vuart_stats stats; +}; + +/** + * struct ps3_vuart_port_driver - a driver for a device on a vuart port + */ + +struct ps3_vuart_port_driver { + enum ps3_match_id match_id; + struct device_driver core; + int (*probe)(struct ps3_vuart_port_device *); + int (*remove)(struct ps3_vuart_port_device *); + int (*tx_event)(struct ps3_vuart_port_device *dev); + int (*rx_event)(struct ps3_vuart_port_device *dev); + int (*disconnect_event)(struct ps3_vuart_port_device *dev); + /* int (*suspend)(struct ps3_vuart_port_device *, pm_message_t); */ + /* int (*resume)(struct ps3_vuart_port_device *); */ +}; + +int ps3_vuart_port_device_register(struct ps3_vuart_port_device *dev); +int ps3_vuart_port_driver_register(struct ps3_vuart_port_driver *drv); +void ps3_vuart_port_driver_unregister(struct ps3_vuart_port_driver *drv); +int ps3_vuart_write(struct ps3_vuart_port_device *dev, + const void* buf, unsigned int bytes); +int ps3_vuart_read(struct ps3_vuart_port_device *dev, void* buf, + unsigned int bytes); +static inline struct ps3_vuart_port_driver *to_ps3_vuart_port_driver( + struct device_driver *_drv) +{ + return container_of(_drv, struct ps3_vuart_port_driver, core); +} +static inline struct ps3_vuart_port_device *to_ps3_vuart_port_device( + struct device *_dev) +{ + return container_of(_dev, struct ps3_vuart_port_device, core); +} + +int ps3_vuart_write(struct ps3_vuart_port_device *dev, const void* buf, + unsigned int bytes); +int ps3_vuart_read(struct ps3_vuart_port_device *dev, void* buf, + unsigned int bytes); + +#endif |