/* * generic_serial.h * * Copyright (C) 1998 R.E.Wolff@BitWizard.nl * * written for the SX serial driver. * Contains the code that should be shared over all the serial drivers. * * Version 0.1 -- December, 1998. */ #ifndef GENERIC_SERIAL_H #define GENERIC_SERIAL_H #ifdef __KERNEL__ #include <linux/mutex.h> struct real_driver { void (*disable_tx_interrupts) (void *); void (*enable_tx_interrupts) (void *); void (*disable_rx_interrupts) (void *); void (*enable_rx_interrupts) (void *); int (*get_CD) (void *); void (*shutdown_port) (void*); int (*set_real_termios) (void*); int (*chars_in_buffer) (void*); void (*close) (void*); void (*hungup) (void*); void (*getserial) (void*, struct serial_struct *sp); }; struct gs_port { int magic; unsigned char *xmit_buf; int xmit_head; int xmit_tail; int xmit_cnt; struct mutex port_write_mutex; int flags; wait_queue_head_t open_wait; wait_queue_head_t close_wait; int count; int blocked_open; struct tty_struct *tty; unsigned long event; unsigned short closing_wait; int close_delay; struct real_driver *rd; int wakeup_chars; int baud_base; int baud; int custom_divisor; spinlock_t driver_lock; }; #endif /* __KERNEL__ */ /* Flags */ /* Warning: serial.h defines some ASYNC_ flags, they say they are "only" used in serial.c, but they are also used in all other serial drivers. Make sure they don't clash with these here... */ #define GS_TX_INTEN 0x00800000 #define GS_RX_INTEN 0x00400000 #define GS_ACTIVE 0x00200000 #define GS_TYPE_NORMAL 1 #define GS_DEBUG_FLUSH 0x00000001 #define GS_DEBUG_BTR 0x00000002 #define GS_DEBUG_TERMIOS 0x00000004 #define GS_DEBUG_STUFF 0x00000008 #define GS_DEBUG_CLOSE 0x00000010 #define GS_DEBUG_FLOW 0x00000020 #define GS_DEBUG_WRITE 0x00000040 #ifdef __KERNEL__ void gs_put_char(struct tty_struct *tty, unsigned char ch); int gs_write(struct tty_struct *tty, const unsigned char *buf, int count); int gs_write_room(struct tty_struct *tty); int gs_chars_in_buffer(struct tty_struct *tty); void gs_flush_buffer(struct tty_struct *tty); void gs_flush_chars(struct tty_struct *tty); void gs_stop(struct tty_struct *tty); void gs_start(struct tty_struct *tty); void gs_hangup(struct tty_struct *tty); int gs_block_til_ready(void *port, struct file *filp); void gs_close(struct tty_struct *tty, struct file *filp); void gs_set_termios (struct tty_struct * tty, struct ktermios * old_termios); int gs_init_port(struct gs_port *port); int gs_setserial(struct gs_port *port, struct serial_struct __user *sp); int gs_getserial(struct gs_port *port, struct serial_struct __user *sp); void gs_got_break(struct gs_port *port); #endif /* __KERNEL__ */ #endif