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