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| Rev | Author | Line No. | Line |
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| 575 | palkovsky | 1 | /* |
| 2 | * Copyright (C) 2005 Ondrej Palkovsky |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | #ifndef __DRV_SERIAL_H__ |
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| 30 | #define __DRV_SERIAL_H__ |
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| 31 | |||
| 32 | #include <console/chardev.h> |
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| 33 | |||
| 34 | #define SERIAL_MAX 4 |
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| 35 | #define SERIAL_COM1 0x3f8 |
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| 36 | #define SERIAL_COM1_IRQ 4 |
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| 37 | #define SERIAL_COM2 0x2f8 |
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| 38 | #define SERIAL_COM2_IRQ 3 |
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| 39 | |||
| 40 | #define P_WRITEB(where,what) (*((volatile char *) (0xB8000000+where))=what) |
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| 41 | #define P_READB(where) (*((volatile char *)(0xB8000000+where))) |
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| 42 | |||
| 43 | #define SERIAL_READ(x) P_READB(x) |
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| 44 | #define SERIAL_WRITE(x,c) P_WRITEB(x,c) |
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| 45 | /* Interrupt enable register */ |
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| 46 | #define SERIAL_READ_IER(x) (P_READB((x) + 1)) |
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| 47 | #define SERIAL_WRITE_IER(x,c) (P_WRITEB((x)+1,c)) |
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| 48 | /* Interrupt identification register */ |
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| 49 | #define SERIAL_READ_IIR(x) (P_READB((x) + 2)) |
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| 50 | /* Line status register */ |
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| 51 | #define SERIAL_READ_LSR(x) (P_READB((x) + 5)) |
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| 52 | #define TRANSMIT_EMPTY_BIT 5 |
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| 53 | |||
| 54 | typedef struct { |
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| 55 | int port; |
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| 56 | int irq; |
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| 57 | }serial_t; |
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| 58 | |||
| 606 | palkovsky | 59 | void serial_console(void); |
| 575 | palkovsky | 60 | int serial_init(void); |
| 61 | |||
| 62 | #endif |