diff options
Diffstat (limited to 'kernel/drivers/ps3/vuart.h')
| -rw-r--r-- | kernel/drivers/ps3/vuart.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/kernel/drivers/ps3/vuart.h b/kernel/drivers/ps3/vuart.h new file mode 100644 index 000000000..23358b719 --- /dev/null +++ b/kernel/drivers/ps3/vuart.h @@ -0,0 +1,101 @@ +/* + * 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 + +#include <asm/ps3.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_work { + struct work_struct work; + unsigned long trigger; + struct ps3_system_bus_device *dev; /* to convert work to device */ +}; + +/** + * struct ps3_vuart_port_driver - a driver for a device on a vuart port + */ + +struct ps3_vuart_port_driver { + struct ps3_system_bus_driver core; + int (*probe)(struct ps3_system_bus_device *); + int (*remove)(struct ps3_system_bus_device *); + void (*shutdown)(struct ps3_system_bus_device *); + void (*work)(struct ps3_system_bus_device *); + /* int (*tx_event)(struct ps3_system_bus_device *dev); */ + /* int (*rx_event)(struct ps3_system_bus_device *dev); */ + /* int (*disconnect_event)(struct ps3_system_bus_device *dev); */ + /* int (*suspend)(struct ps3_system_bus_device *, pm_message_t); */ + /* int (*resume)(struct ps3_system_bus_device *); */ +}; + +int ps3_vuart_port_driver_register(struct ps3_vuart_port_driver *drv); +void ps3_vuart_port_driver_unregister(struct ps3_vuart_port_driver *drv); + +static inline struct ps3_vuart_port_driver * + ps3_system_bus_dev_to_vuart_drv(struct ps3_system_bus_device *_dev) +{ + struct ps3_system_bus_driver *sbd = + ps3_system_bus_dev_to_system_bus_drv(_dev); + BUG_ON(!sbd); + return container_of(sbd, struct ps3_vuart_port_driver, core); +} +static inline struct ps3_system_bus_device *ps3_vuart_work_to_system_bus_dev( + struct work_struct *_work) +{ + struct ps3_vuart_work *vw = container_of(_work, struct ps3_vuart_work, + work); + return vw->dev; +} + +int ps3_vuart_write(struct ps3_system_bus_device *dev, const void *buf, + unsigned int bytes); +int ps3_vuart_read(struct ps3_system_bus_device *dev, void *buf, + unsigned int bytes); +int ps3_vuart_read_async(struct ps3_system_bus_device *dev, unsigned int bytes); +void ps3_vuart_cancel_async(struct ps3_system_bus_device *dev); +void ps3_vuart_clear_rx_bytes(struct ps3_system_bus_device *dev, + unsigned int bytes); + +struct vuart_triggers { + unsigned long rx; + unsigned long tx; +}; + +int ps3_vuart_get_triggers(struct ps3_system_bus_device *dev, + struct vuart_triggers *trig); +int ps3_vuart_set_triggers(struct ps3_system_bus_device *dev, unsigned int tx, + unsigned int rx); +int ps3_vuart_enable_interrupt_tx(struct ps3_system_bus_device *dev); +int ps3_vuart_disable_interrupt_tx(struct ps3_system_bus_device *dev); +int ps3_vuart_enable_interrupt_rx(struct ps3_system_bus_device *dev); +int ps3_vuart_disable_interrupt_rx(struct ps3_system_bus_device *dev); +int ps3_vuart_enable_interrupt_disconnect(struct ps3_system_bus_device *dev); +int ps3_vuart_disable_interrupt_disconnect(struct ps3_system_bus_device *dev); + +#endif |