diff options
Diffstat (limited to 'include/linux/gameport.h')
| -rw-r--r-- | include/linux/gameport.h | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/include/linux/gameport.h b/include/linux/gameport.h new file mode 100644 index 000000000000..b1272f822cfa --- /dev/null +++ b/include/linux/gameport.h @@ -0,0 +1,198 @@ +#ifndef _GAMEPORT_H +#define _GAMEPORT_H + +/* + * Copyright (c) 1999-2002 Vojtech Pavlik + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#include <asm/io.h> +#include <linux/list.h> +#include <linux/device.h> + +struct gameport { + + void *port_data; /* Private pointer for gameport drivers */ + char name[32]; + char phys[32]; + + int io; + int speed; + int fuzz; + + void (*trigger)(struct gameport *); + unsigned char (*read)(struct gameport *); + int (*cooked_read)(struct gameport *, int *, int *); + int (*calibrate)(struct gameport *, int *, int *); + int (*open)(struct gameport *, int); + void (*close)(struct gameport *); + + struct timer_list poll_timer; + unsigned int poll_interval; /* in msecs */ + spinlock_t timer_lock; + unsigned int poll_cnt; + void (*poll_handler)(struct gameport *); + + struct gameport *parent, *child; + + struct gameport_driver *drv; + struct semaphore drv_sem; /* protects serio->drv so attributes can pin driver */ + + struct device dev; + unsigned int registered; /* port has been fully registered with driver core */ + + struct list_head node; +}; +#define to_gameport_port(d) container_of(d, struct gameport, dev) + +struct gameport_driver { + + void *private; + char *description; + + int (*connect)(struct gameport *, struct gameport_driver *drv); + int (*reconnect)(struct gameport *); + void (*disconnect)(struct gameport *); + + struct device_driver driver; + + unsigned int ignore; +}; +#define to_gameport_driver(d) container_of(d, struct gameport_driver, driver) + +int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mode); +void gameport_close(struct gameport *gameport); +void gameport_rescan(struct gameport *gameport); + +void __gameport_register_port(struct gameport *gameport, struct module *owner); +static inline void gameport_register_port(struct gameport *gameport) +{ + __gameport_register_port(gameport, THIS_MODULE); +} + +void gameport_unregister_port(struct gameport *gameport); + +static inline struct gameport *gameport_allocate_port(void) +{ + struct gameport *gameport = kcalloc(1, sizeof(struct gameport), GFP_KERNEL); + + return gameport; +} + +static inline void gameport_free_port(struct gameport *gameport) +{ + kfree(gameport); +} + +static inline void gameport_set_name(struct gameport *gameport, const char *name) +{ + strlcpy(gameport->name, name, sizeof(gameport->name)); +} + +void gameport_set_phys(struct gameport *gameport, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); + +/* + * Use the following fucntions to manipulate gameport's per-port + * driver-specific data. + */ +static inline void *gameport_get_drvdata(struct gameport *gameport) +{ + return dev_get_drvdata(&gameport->dev); +} + +static inline void gameport_set_drvdata(struct gameport *gameport, void *data) +{ + dev_set_drvdata(&gameport->dev, data); +} + +/* + * Use the following fucntions to pin gameport's driver in process context + */ +static inline int gameport_pin_driver(struct gameport *gameport) +{ + return down_interruptible(&gameport->drv_sem); +} + +static inline void gameport_unpin_driver(struct gameport *gameport) +{ + up(&gameport->drv_sem); +} + +void __gameport_register_driver(struct gameport_driver *drv, struct module *owner); +static inline void gameport_register_driver(struct gameport_driver *drv) +{ + __gameport_register_driver(drv, THIS_MODULE); +} + +void gameport_unregister_driver(struct gameport_driver *drv); + +#define GAMEPORT_MODE_DISABLED 0 +#define GAMEPORT_MODE_RAW 1 +#define GAMEPORT_MODE_COOKED 2 + +#define GAMEPORT_ID_VENDOR_ANALOG 0x0001 +#define GAMEPORT_ID_VENDOR_MADCATZ 0x0002 +#define GAMEPORT_ID_VENDOR_LOGITECH 0x0003 +#define GAMEPORT_ID_VENDOR_CREATIVE 0x0004 +#define GAMEPORT_ID_VENDOR_GENIUS 0x0005 +#define GAMEPORT_ID_VENDOR_INTERACT 0x0006 +#define GAMEPORT_ID_VENDOR_MICROSOFT 0x0007 +#define GAMEPORT_ID_VENDOR_THRUSTMASTER 0x0008 +#define GAMEPORT_ID_VENDOR_GRAVIS 0x0009 +#define GAMEPORT_ID_VENDOR_GUILLEMOT 0x000a + +static inline void gameport_trigger(struct gameport *gameport) +{ + if (gameport->trigger) + gameport->trigger(gameport); + else + outb(0xff, gameport->io); +} + +static inline unsigned char gameport_read(struct gameport *gameport) +{ + if (gameport->read) + return gameport->read(gameport); + else + return inb(gameport->io); +} + +static inline int gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons) +{ + if (gameport->cooked_read) + return gameport->cooked_read(gameport, axes, buttons); + else + return -1; +} + +static inline int gameport_calibrate(struct gameport *gameport, int *axes, int *max) +{ + if (gameport->calibrate) + return gameport->calibrate(gameport, axes, max); + else + return -1; +} + +static inline int gameport_time(struct gameport *gameport, int time) +{ + return (time * gameport->speed) / 1000; +} + +static inline void gameport_set_poll_handler(struct gameport *gameport, void (*handler)(struct gameport *)) +{ + gameport->poll_handler = handler; +} + +static inline void gameport_set_poll_interval(struct gameport *gameport, unsigned int msecs) +{ + gameport->poll_interval = msecs; +} + +void gameport_start_polling(struct gameport *gameport); +void gameport_stop_polling(struct gameport *gameport); + +#endif |