projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * generic_serial.h | |
| 3 | * | |
| 4 | * Copyright (C) 1998 R.E.Wolff@BitWizard.nl | |
| 5 | * | |
| 6 | * written for the SX serial driver. | |
| 7 | * Contains the code that should be shared over all the serial drivers. | |
| 8 | * | |
| 9 | * Version 0.1 -- December, 1998. | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef GENERIC_SERIAL_H | |
| 13 | #define GENERIC_SERIAL_H | |
| 14 | ||
| 81861d78 IM |
15 | #include <linux/mutex.h> |
| 16 | ||
| 1da177e4 LT |
17 | struct real_driver { |
| 18 | void (*disable_tx_interrupts) (void *); | |
| 19 | void (*enable_tx_interrupts) (void *); | |
| 20 | void (*disable_rx_interrupts) (void *); | |
| 21 | void (*enable_rx_interrupts) (void *); | |
| 22 | int (*get_CD) (void *); | |
| 23 | void (*shutdown_port) (void*); | |
| 24 | int (*set_real_termios) (void*); | |
| 25 | int (*chars_in_buffer) (void*); | |
| 26 | void (*close) (void*); | |
| 27 | void (*hungup) (void*); | |
| 28 | void (*getserial) (void*, struct serial_struct *sp); | |
| 29 | }; | |
| 30 | ||
| 31 | ||
| 32 | ||
| 33 | struct gs_port { | |
| 34 | int magic; | |
| 35 | unsigned char *xmit_buf; | |
| 36 | int xmit_head; | |
| 37 | int xmit_tail; | |
| 38 | int xmit_cnt; | |
| 81861d78 | 39 | struct mutex port_write_mutex; |
| 1da177e4 LT |
40 | int flags; |
| 41 | wait_queue_head_t open_wait; | |
| 42 | wait_queue_head_t close_wait; | |
| 43 | int count; | |
| 44 | int blocked_open; | |
| 45 | struct tty_struct *tty; | |
| 46 | unsigned long event; | |
| 47 | unsigned short closing_wait; | |
| 48 | int close_delay; | |
| 49 | struct real_driver *rd; | |
| 50 | int wakeup_chars; | |
| 51 | int baud_base; | |
| 52 | int baud; | |
| 53 | int custom_divisor; | |
| 54 | spinlock_t driver_lock; | |
| 55 | }; | |
| 56 | ||
| 57 | ||
| 58 | /* Flags */ | |
| 59 | /* Warning: serial.h defines some ASYNC_ flags, they say they are "only" | |
| 60 | used in serial.c, but they are also used in all other serial drivers. | |
| 61 | Make sure they don't clash with these here... */ | |
| 62 | #define GS_TX_INTEN 0x00800000 | |
| 63 | #define GS_RX_INTEN 0x00400000 | |
| 64 | #define GS_ACTIVE 0x00200000 | |
| 65 | ||
| 66 | ||
| 67 | ||
| 68 | #define GS_TYPE_NORMAL 1 | |
| 69 | ||
| 70 | #define GS_DEBUG_FLUSH 0x00000001 | |
| 71 | #define GS_DEBUG_BTR 0x00000002 | |
| 72 | #define GS_DEBUG_TERMIOS 0x00000004 | |
| 73 | #define GS_DEBUG_STUFF 0x00000008 | |
| 74 | #define GS_DEBUG_CLOSE 0x00000010 | |
| 75 | #define GS_DEBUG_FLOW 0x00000020 | |
| 76 | #define GS_DEBUG_WRITE 0x00000040 | |
| 77 | ||
| 78 | ||
| 79 | void gs_put_char(struct tty_struct *tty, unsigned char ch); | |
| 80 | int gs_write(struct tty_struct *tty, | |
| 81 | const unsigned char *buf, int count); | |
| 82 | int gs_write_room(struct tty_struct *tty); | |
| 83 | int gs_chars_in_buffer(struct tty_struct *tty); | |
| 84 | void gs_flush_buffer(struct tty_struct *tty); | |
| 85 | void gs_flush_chars(struct tty_struct *tty); | |
| 86 | void gs_stop(struct tty_struct *tty); | |
| 87 | void gs_start(struct tty_struct *tty); | |
| 88 | void gs_hangup(struct tty_struct *tty); | |
| 89 | int gs_block_til_ready(void *port, struct file *filp); | |
| 90 | void gs_close(struct tty_struct *tty, struct file *filp); | |
| 91 | void gs_set_termios (struct tty_struct * tty, | |
| 92 | struct termios * old_termios); | |
| 93 | int gs_init_port(struct gs_port *port); | |
| 94 | int gs_setserial(struct gs_port *port, struct serial_struct __user *sp); | |
| 95 | int gs_getserial(struct gs_port *port, struct serial_struct __user *sp); | |
| 96 | void gs_got_break(struct gs_port *port); | |
| 97 | ||
| 98 | #endif |