diff options
Diffstat (limited to 'drivers/serial/mcfserial.h')
| -rw-r--r-- | drivers/serial/mcfserial.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/serial/mcfserial.h b/drivers/serial/mcfserial.h new file mode 100644 index 000000000000..a2b28e8629f9 --- /dev/null +++ b/drivers/serial/mcfserial.h @@ -0,0 +1,75 @@ +/* + * mcfserial.c -- serial driver for ColdFire internal UARTS. + * + * Copyright (c) 1999 Greg Ungerer <gerg@snapgear.com> + * Copyright (c) 2000-2001 Lineo, Inc. <www.lineo.com> + * Copyright (c) 2002 SnapGear Inc., <www.snapgear.com> + * + * Based on code from 68332serial.c which was: + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1998 TSHG + * Copyright (c) 1999 Rt-Control Inc. <jeff@uclinux.org> + */ +#ifndef _MCF_SERIAL_H +#define _MCF_SERIAL_H + +#include <linux/config.h> +#include <linux/serial.h> + +#ifdef __KERNEL__ + +/* + * Define a local serial stats structure. + */ + +struct mcf_stats { + unsigned int rx; + unsigned int tx; + unsigned int rxbreak; + unsigned int rxframing; + unsigned int rxparity; + unsigned int rxoverrun; +}; + + +/* + * This is our internal structure for each serial port's state. + * Each serial port has one of these structures associated with it. + */ + +struct mcf_serial { + int magic; + volatile unsigned char *addr; /* UART memory address */ + int irq; + int flags; /* defined in tty.h */ + int type; /* UART type */ + struct tty_struct *tty; + unsigned char imr; /* Software imr register */ + unsigned int baud; + int sigs; + int custom_divisor; + int x_char; /* xon/xoff character */ + int baud_base; + int close_delay; + unsigned short closing_wait; + unsigned short closing_wait2; + unsigned long event; + int line; + int count; /* # of fd on device */ + int blocked_open; /* # of blocked opens */ + unsigned char *xmit_buf; + int xmit_head; + int xmit_tail; + int xmit_cnt; + struct mcf_stats stats; + struct work_struct tqueue; + struct work_struct tqueue_hangup; + wait_queue_head_t open_wait; + wait_queue_head_t close_wait; + +}; + +#endif /* __KERNEL__ */ + +#endif /* _MCF_SERIAL_H */ |