diff options
Diffstat (limited to 'include/linux/generic_serial.h')
| -rw-r--r-- | include/linux/generic_serial.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/include/linux/generic_serial.h b/include/linux/generic_serial.h new file mode 100644 index 000000000000..0abe9d9a0069 --- /dev/null +++ b/include/linux/generic_serial.h @@ -0,0 +1,96 @@ +/* + * 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 + +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 semaphore port_write_sem; + 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; +}; + + +/* 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 + + +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 termios * 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 |