1#ifndef _SERIO_H 2#define _SERIO_H 3 4/* 5 * Copyright (C) 1999-2002 Vojtech Pavlik 6* 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License version 2 as published by 9 * the Free Software Foundation. 10 */ 11 12#include <linux/ioctl.h> 13 14#define SPIOCSTYPE _IOW('q', 0x01, unsigned long) 15 16#ifdef __KERNEL__ 17 18#include <linux/interrupt.h> 19#include <linux/list.h> 20#include <linux/spinlock.h> 21#include <linux/mutex.h> 22#include <linux/device.h> 23#include <linux/mod_devicetable.h> 24 25struct serio { 26 void *port_data; 27 28 char name[32]; 29 char phys[32]; 30 31 unsigned int manual_bind; 32 33 struct serio_device_id id; 34 35 spinlock_t lock; /* protects critical sections from port's interrupt handler */ 36 37 int (*write)(struct serio *, unsigned char); 38 int (*open)(struct serio *); 39 void (*close)(struct serio *); 40 int (*start)(struct serio *); 41 void (*stop)(struct serio *); 42 43 struct serio *parent, *child; 44 45 struct serio_driver *drv; /* accessed from interrupt, must be protected by serio->lock and serio->sem */ 46 struct mutex drv_mutex; /* protects serio->drv so attributes can pin driver */ 47 48 struct device dev; 49 unsigned int registered; /* port has been fully registered with driver core */ 50 51 struct list_head node; 52}; 53#define to_serio_port(d) container_of(d, struct serio, dev) 54 55struct serio_driver { 56 void *private; 57 char *description; 58 59 struct serio_device_id *id_table; 60 unsigned int manual_bind; 61 62 void (*write_wakeup)(struct serio *); 63 irqreturn_t (*interrupt)(struct serio *, unsigned char, 64 unsigned int, struct pt_regs *); 65 int (*connect)(struct serio *, struct serio_driver *drv); 66 int (*reconnect)(struct serio *); 67 void (*disconnect)(struct serio *); 68 void (*cleanup)(struct serio *); 69 70 struct device_driver driver; 71}; 72#define to_serio_driver(d) container_of(d, struct serio_driver, driver) 73 74int serio_open(struct serio *serio, struct serio_driver *drv); 75void serio_close(struct serio *serio); 76void serio_rescan(struct serio *serio); 77void serio_reconnect(struct serio *serio); 78irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned int flags, struct pt_regs *regs); 79 80void __serio_register_port(struct serio *serio, struct module *owner); 81static inline void serio_register_port(struct serio *serio) 82{ 83 __serio_register_port(serio, THIS_MODULE); 84} 85 86void serio_unregister_port(struct serio *serio); 87void serio_unregister_child_port(struct serio *serio); 88void __serio_unregister_port_delayed(struct serio *serio, struct module *owner); 89static inline void serio_unregister_port_delayed(struct serio *serio) 90{ 91 __serio_unregister_port_delayed(serio, THIS_MODULE); 92} 93 94void __serio_register_driver(struct serio_driver *drv, struct module *owner); 95static inline void serio_register_driver(struct serio_driver *drv) 96{ 97 __serio_register_driver(drv, THIS_MODULE); 98} 99 100void serio_unregister_driver(struct serio_driver *drv); 101 102static inline int serio_write(struct serio *serio, unsigned char data) 103{ 104 if (serio->write) 105 return serio->write(serio, data); 106 else 107 return -1; 108} 109 110static inline void serio_drv_write_wakeup(struct serio *serio) 111{ 112 if (serio->drv && serio->drv->write_wakeup) 113 serio->drv->write_wakeup(serio); 114} 115 116static inline void serio_cleanup(struct serio *serio) 117{ 118 if (serio->drv && serio->drv->cleanup) 119 serio->drv->cleanup(serio); 120} 121 122/* 123 * Use the following functions to manipulate serio's per-port 124 * driver-specific data. 125 */ 126static inline void *serio_get_drvdata(struct serio *serio) 127{ 128 return dev_get_drvdata(&serio->dev); 129} 130 131static inline void serio_set_drvdata(struct serio *serio, void *data) 132{ 133 dev_set_drvdata(&serio->dev, data); 134} 135 136/* 137 * Use the following functions to protect critical sections in 138 * driver code from port's interrupt handler 139 */ 140static inline void serio_pause_rx(struct serio *serio) 141{ 142 spin_lock_irq(&serio->lock); 143} 144 145static inline void serio_continue_rx(struct serio *serio) 146{ 147 spin_unlock_irq(&serio->lock); 148} 149 150/* 151 * Use the following functions to pin serio's driver in process context 152 */ 153static inline int serio_pin_driver(struct serio *serio) 154{ 155 return mutex_lock_interruptible(&serio->drv_mutex); 156} 157 158static inline void serio_pin_driver_uninterruptible(struct serio *serio) 159{ 160 mutex_lock(&serio->drv_mutex); 161} 162 163static inline void serio_unpin_driver(struct serio *serio) 164{ 165 mutex_unlock(&serio->drv_mutex); 166} 167 168 169#endif 170 171/* 172 * bit masks for use in "interrupt" flags (3rd argument) 173 */ 174#define SERIO_TIMEOUT 1 175#define SERIO_PARITY 2 176#define SERIO_FRAME 4 177 178/* 179 * Serio types 180 */ 181#define SERIO_XT 0x00 182#define SERIO_8042 0x01 183#define SERIO_RS232 0x02 184#define SERIO_HIL_MLC 0x03 185#define SERIO_PS_PSTHRU 0x05 186#define SERIO_8042_XL 0x06 187 188/* 189 * Serio types 190 */ 191#define SERIO_UNKNOWN 0x00 192#define SERIO_MSC 0x01 193#define SERIO_SUN 0x02 194#define SERIO_MS 0x03 195#define SERIO_MP 0x04 196#define SERIO_MZ 0x05 197#define SERIO_MZP 0x06 198#define SERIO_MZPP 0x07 199#define SERIO_VSXXXAA 0x08 200#define SERIO_SUNKBD 0x10 201#define SERIO_WARRIOR 0x18 202#define SERIO_SPACEORB 0x19 203#define SERIO_MAGELLAN 0x1a 204#define SERIO_SPACEBALL 0x1b 205#define SERIO_GUNZE 0x1c 206#define SERIO_IFORCE 0x1d 207#define SERIO_STINGER 0x1e 208#define SERIO_NEWTON 0x1f 209#define SERIO_STOWAWAY 0x20 210#define SERIO_H3600 0x21 211#define SERIO_PS2SER 0x22 212#define SERIO_TWIDKBD 0x23 213#define SERIO_TWIDJOY 0x24 214#define SERIO_HIL 0x25 215#define SERIO_SNES232 0x26 216#define SERIO_SEMTECH 0x27 217#define SERIO_LKKBD 0x28 218#define SERIO_ELO 0x29 219#define SERIO_MICROTOUCH 0x30 220 221#endif 222