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 25 struct 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 55 struct 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 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, struct pt_regs *regs); 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 void __serio_unregister_port_delayed(struct serio *serio, struct module *owner); 89 static inline void serio_unregister_port_delayed(struct serio *serio) 90 { 91 __serio_unregister_port_delayed(serio, THIS_MODULE); 92 } 93 94 void __serio_register_driver(struct serio_driver *drv, struct module *owner); 95 static inline void serio_register_driver(struct serio_driver *drv) 96 { 97 __serio_register_driver(drv, THIS_MODULE); 98 } 99 100 void serio_unregister_driver(struct serio_driver *drv); 101 102 static 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 } 109 110 static 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 } 115 116 static 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 */ 126 static inline void *serio_get_drvdata(struct serio *serio) 127 { 128 return dev_get_drvdata(&serio->dev); 129 } 130 131 static 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 */ 140 static inline void serio_pause_rx(struct serio *serio) 141 { 142 spin_lock_irq(&serio->lock); 143 } 144 145 static 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 */ 153 static inline int serio_pin_driver(struct serio *serio) 154 { 155 return mutex_lock_interruptible(&serio->drv_mutex); 156 } 157 158 static inline void serio_pin_driver_uninterruptible(struct serio *serio) 159 { 160 mutex_lock(&serio->drv_mutex); 161 } 162 163 static 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
