| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * mcfserial.c -- serial driver for ColdFire internal UARTS. |
| 3 | * |
| 4 | * Copyright (c) 1999 Greg Ungerer <gerg@snapgear.com> |
| 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 (davem@caip.rutgers.edu) |
| 11 | * Copyright (C) 1998 TSHG |
| 12 | * Copyright (c) 1999 Rt-Control Inc. <jeff@uclinux.org> |
| 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 */ |