| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/char/riscom8.h -- RISCom/8 multiport serial driver. |
| 3 | * |
| 4 | * Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com) |
| 5 | * |
| 6 | * This code is loosely based on the Linux serial driver, written by |
| 7 | * Linus Torvalds, Theodore T'so and others. The RISCom/8 card |
| 8 | * programming info was obtained from various drivers for other OSes |
| 9 | * (FreeBSD, ISC, etc), but no source code from those drivers were |
| 10 | * directly included in this driver. |
| 11 | * |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License as published by |
| 15 | * the Free Software Foundation; either version 2 of the License, or |
| 16 | * (at your option) any later version. |
| 17 | * |
| 18 | * This program is distributed in the hope that it will be useful, |
| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | * GNU General Public License for more details. |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License |
| 24 | * along with this program; if not, write to the Free Software |
| 25 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 26 | */ |
| 27 | |
| 28 | #ifndef __LINUX_RISCOM8_H |
| 29 | #define __LINUX_RISCOM8_H |
| 30 | |
| 31 | #include <linux/serial.h> |
| 32 | |
| 33 | #ifdef __KERNEL__ |
| 34 | |
| 35 | #define RC_NBOARD 4 |
| 36 | /* NOTE: RISCom decoder recognizes 16 addresses... */ |
| 37 | #define RC_NPORT 8 |
| 38 | #define RC_BOARD(line) (((line) >> 3) & 0x07) |
| 39 | #define RC_PORT(line) ((line) & (RC_NPORT - 1)) |
| 40 | |
| 41 | /* Ticks per sec. Used for setting receiver timeout and break length */ |
| 42 | #define RISCOM_TPS 4000 |
| 43 | |
| 44 | /* Yeah, after heavy testing I decided it must be 6. |
| 45 | * Sure, You can change it if needed. |
| 46 | */ |
| 47 | #define RISCOM_RXFIFO 6 /* Max. receiver FIFO size (1-8) */ |
| 48 | |
| 49 | #define RISCOM8_MAGIC 0x0907 |
| 50 | |
| 51 | #define RC_IOBASE1 0x220 |
| 52 | #define RC_IOBASE2 0x240 |
| 53 | #define RC_IOBASE3 0x250 |
| 54 | #define RC_IOBASE4 0x260 |
| 55 | |
| 56 | struct riscom_board { |
| 57 | unsigned long flags; |
| 58 | unsigned short base; |
| 59 | unsigned char irq; |
| 60 | signed char count; |
| 61 | unsigned char DTR; |
| 62 | }; |
| 63 | |
| 64 | #define RC_BOARD_PRESENT 0x00000001 |
| 65 | #define RC_BOARD_ACTIVE 0x00000002 |
| 66 | |
| 67 | struct riscom_port { |
| 68 | int magic; |
| 69 | int baud_base; |
| 70 | int flags; |
| 71 | struct tty_struct * tty; |
| 72 | int count; |
| 73 | int blocked_open; |
| 74 | long event; /* long req'd for set_bit --RR */ |
| 75 | int timeout; |
| 76 | int close_delay; |
| 77 | unsigned char * xmit_buf; |
| 78 | int custom_divisor; |
| 79 | int xmit_head; |
| 80 | int xmit_tail; |
| 81 | int xmit_cnt; |
| 82 | wait_queue_head_t open_wait; |
| 83 | wait_queue_head_t close_wait; |
| 84 | struct work_struct tqueue; |
| 85 | struct work_struct tqueue_hangup; |
| 86 | short wakeup_chars; |
| 87 | short break_length; |
| 88 | unsigned short closing_wait; |
| 89 | unsigned char mark_mask; |
| 90 | unsigned char IER; |
| 91 | unsigned char MSVR; |
| 92 | unsigned char COR2; |
| 93 | #ifdef RC_REPORT_OVERRUN |
| 94 | unsigned long overrun; |
| 95 | #endif |
| 96 | #ifdef RC_REPORT_FIFO |
| 97 | unsigned long hits[10]; |
| 98 | #endif |
| 99 | }; |
| 100 | |
| 101 | #endif /* __KERNEL__ */ |
| 102 | #endif /* __LINUX_RISCOM8_H */ |