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/types.h> 19 #include <linux/interrupt.h> 20 #include <linux/list.h> 21 #include <linux/spinlock.h> 22 #include <linux/mutex.h> 23 #include <linux/device.h> 24 #include <linux/mod_devicetable.h> 25 26 struct serio { 27 void *port_data; 28 29 char name[32]; 30 char phys[32]; 31 32 bool manual_bind; 33 34 struct serio_device_id id; 35 36 spinlock_t lock; /* protects critical sections from port's interrupt handler */ 37 38 int (*write)(struct serio *, unsigned char); 39 int (*open)(struct serio *); 40 void (*close)(struct serio *); 41 int (*start)(struct serio *); 42 void (*stop)(struct serio *); 43 44 struct serio *parent, *child; 45 unsigned int depth; /* level of nesting in serio hierarchy */ 46 47 struct serio_driver *drv; /* accessed from interrupt, must be protected by serio->lock and serio->sem */ 48 struct mutex drv_mutex; /* protects serio->drv so attributes can pin driver */ 49 50 struct device dev; 51 52 struct list_head node; 53 }; 54 #define to_serio_port(d) container_of(d, struct serio, dev) 55 56 struct serio_driver { 57 void *private; 58 char *description; 59 60 struct serio_device_id *id_table; 61 bool manual_bind; 62 63 void (*write_wakeup)(struct serio *); 64 irqreturn_t (*interrupt)(struct serio *, unsigned char, unsigned int); 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 74 int serio_open(struct serio *serio, struct serio_driver *drv); 75 void serio_close(struct serio *serio); 76 void serio_rescan(struct serio *serio); 77 void serio_reconnect(struct serio *serio); 78 irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned int flags); 79 80 void __serio_register_port(struct serio *serio, struct module *owner); 81 static inline void serio_register_port(struct serio *serio) 82 { 83 __serio_register_port(serio, THIS_MODULE); 84 } 85 86 void serio_unregister_port(struct serio *serio); 87 void serio_unregister_child_port(struct serio *serio); 88 89 int __serio_register_driver(struct serio_driver *drv, struct module *owner, const char *mod_name); 90 static inline int __must_check serio_register_driver(struct serio_driver *drv) 91 { 92 return __serio_register_driver(drv, THIS_MODULE, KBUILD_MODNAME); 93 } 94 void serio_unregister_driver(struct serio_driver *drv); 95 96 static inline int serio_write(struct serio *serio, unsigned char data) 97 { 98 if (serio->write) 99 return serio->write(serio, data); 100 else 101 return -1; 102 } 103 104 static inline void serio_drv_write_wakeup(struct serio *serio) 105 { 106 if (serio->drv && serio->drv->write_wakeup) 107 serio->drv->write_wakeup(serio); 108 } 109 110 /* 111 * Use the following functions to manipulate serio's per-port 112 * driver-specific data. 113 */ 114 static inline void *serio_get_drvdata(struct serio *serio) 115 { 116 return dev_get_drvdata(&serio->dev); 117 } 118 119 static inline void serio_set_drvdata(struct serio *serio, void *data) 120 { 121 dev_set_drvdata(&serio->dev, data); 122 } 123 124 /* 125 * Use the following functions to protect critical sections in 126 * driver code from port's interrupt handler 127 */ 128 static inline void serio_pause_rx(struct serio *serio) 129 { 130 spin_lock_irq(&serio->lock); 131 } 132 133 static inline void serio_continue_rx(struct serio *serio) 134 { 135 spin_unlock_irq(&serio->lock); 136 } 137 138 /* 139 * Use the following functions to pin serio's driver in process context 140 */ 141 static inline int serio_pin_driver(struct serio *serio) 142 { 143 return mutex_lock_interruptible(&serio->drv_mutex); 144 } 145 146 static inline void serio_pin_driver_uninterruptible(struct serio *serio) 147 { 148 mutex_lock(&serio->drv_mutex); 149 } 150 151 static inline void serio_unpin_driver(struct serio *serio) 152 { 153 mutex_unlock(&serio->drv_mutex); 154 } 155 156 157 #endif 158 159 /* 160 * bit masks for use in "interrupt" flags (3rd argument) 161 */ 162 #define SERIO_TIMEOUT 1 163 #define SERIO_PARITY 2 164 #define SERIO_FRAME 4 165 166 /* 167 * Serio types 168 */ 169 #define SERIO_XT 0x00 170 #define SERIO_8042 0x01 171 #define SERIO_RS232 0x02 172 #define SERIO_HIL_MLC 0x03 173 #define SERIO_PS_PSTHRU 0x05 174 #define SERIO_8042_XL 0x06 175 176 /* 177 * Serio protocols 178 */ 179 #define SERIO_UNKNOWN 0x00 180 #define SERIO_MSC 0x01 181 #define SERIO_SUN 0x02 182 #define SERIO_MS 0x03 183 #define SERIO_MP 0x04 184 #define SERIO_MZ 0x05 185 #define SERIO_MZP 0x06 186 #define SERIO_MZPP 0x07 187 #define SERIO_VSXXXAA 0x08 188 #define SERIO_SUNKBD 0x10 189 #define SERIO_WARRIOR 0x18 190 #define SERIO_SPACEORB 0x19 191 #define SERIO_MAGELLAN 0x1a 192 #define SERIO_SPACEBALL 0x1b 193 #define SERIO_GUNZE 0x1c 194 #define SERIO_IFORCE 0x1d 195 #define SERIO_STINGER 0x1e 196 #define SERIO_NEWTON 0x1f 197 #define SERIO_STOWAWAY 0x20 198 #define SERIO_H3600 0x21 199 #define SERIO_PS2SER 0x22 200 #define SERIO_TWIDKBD 0x23 201 #define SERIO_TWIDJOY 0x24 202 #define SERIO_HIL 0x25 203 #define SERIO_SNES232 0x26 204 #define SERIO_SEMTECH 0x27 205 #define SERIO_LKKBD 0x28 206 #define SERIO_ELO 0x29 207 #define SERIO_MICROTOUCH 0x30 208 #define SERIO_PENMOUNT 0x31 209 #define SERIO_TOUCHRIGHT 0x32 210 #define SERIO_TOUCHWIN 0x33 211 #define SERIO_TAOSEVM 0x34 212 #define SERIO_FUJITSU 0x35 213 #define SERIO_ZHENHUA 0x36 214 #define SERIO_INEXIO 0x37 215 #define SERIO_TOUCHIT213 0x38 216 #define SERIO_W8001 0x39 217 #define SERIO_DYNAPRO 0x3a 218 219 #endif 220