projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * mcfserial.c -- serial driver for ColdFire internal UARTS. | |
| 3 | * | |
| 4 | * Copyright (c) 1999 Greg Ungerer <[email protected]> | |
| 5 | * Copyright (c) 2000-2001 Lineo, Inc. <www.lineo.com> | |
| 6 | * Copyright (c) 2002 SnapGear Inc., <www.snapgear.com> | |
| 7 | * | |
| 8 | * Based on code from 68332serial.c which was: | |
| 9 | * | |
| 10 | * Copyright (C) 1995 David S. Miller ([email protected]) | |
| 11 | * Copyright (C) 1998 TSHG | |
| 12 | * Copyright (c) 1999 Rt-Control Inc. <[email protected]> | |
| 13 | */ | |
| 14 | #ifndef _MCF_SERIAL_H | |
| 15 | #define _MCF_SERIAL_H | |
| 16 | ||
| 17 | #include <linux/config.h> | |
| 18 | #include <linux/serial.h> | |
| 19 | ||
| 20 | #ifdef __KERNEL__ | |
| 21 | ||
| 22 | /* | |
| 23 | * Define a local serial stats structure. | |
| 24 | */ | |
| 25 | ||
| 26 | struct mcf_stats { | |
| 27 | unsigned int rx; | |
| 28 | unsigned int tx; | |
| 29 | unsigned int rxbreak; | |
| 30 | unsigned int rxframing; | |
| 31 | unsigned int rxparity; | |
| 32 | unsigned int rxoverrun; | |
| 33 | }; | |
| 34 | ||
| 35 | ||
| 36 | /* | |
| 37 | * This is our internal structure for each serial port's state. | |
| 38 | * Each serial port has one of these structures associated with it. | |
| 39 | */ | |
| 40 | ||
| 41 | struct mcf_serial { | |
| 42 | int magic; | |
| 43 | volatile unsigned char *addr; /* UART memory address */ | |
| 44 | int irq; | |
| 45 | int flags; /* defined in tty.h */ | |
| 46 | int type; /* UART type */ | |
| 47 | struct tty_struct *tty; | |
| 48 | unsigned char imr; /* Software imr register */ | |
| 49 | unsigned int baud; | |
| 50 | int sigs; | |
| 51 | int custom_divisor; | |
| 52 | int x_char; /* xon/xoff character */ | |
| 53 | int baud_base; | |
| 54 | int close_delay; | |
| 55 | unsigned short closing_wait; | |
| 56 | unsigned short closing_wait2; | |
| 57 | unsigned long event; | |
| 58 | int line; | |
| 59 | int count; /* # of fd on device */ | |
| 60 | int blocked_open; /* # of blocked opens */ | |
| 61 | unsigned char *xmit_buf; | |
| 62 | int xmit_head; | |
| 63 | int xmit_tail; | |
| 64 | int xmit_cnt; | |
| 65 | struct mcf_stats stats; | |
| 66 | struct work_struct tqueue; | |
| 67 | struct work_struct tqueue_hangup; | |
| 68 | wait_queue_head_t open_wait; | |
| 69 | wait_queue_head_t close_wait; | |
| 70 | ||
| 71 | }; | |
| 72 | ||
| 73 | #endif /* __KERNEL__ */ | |
| 74 | ||
| 75 | #endif /* _MCF_SERIAL_H */ |