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1 | /* |
1 | /* |
2 | * Copyright (C) 2005 Ondrej Palkovsky |
2 | * Copyright (C) 2005 Ondrej Palkovsky |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #ifndef __DRV_SERIAL_H__ |
29 | #ifndef __DRV_SERIAL_H__ |
30 | #define __DRV_SERIAL_H__ |
30 | #define __DRV_SERIAL_H__ |
31 | 31 | ||
32 | #include <console/chardev.h> |
32 | #include <console/chardev.h> |
33 | 33 | ||
34 | #define SERIAL_MAX 4 |
34 | #define SERIAL_MAX 4 |
35 | #define SERIAL_COM1 0x3f8 |
35 | #define SERIAL_COM1 0x3f8 |
36 | #define SERIAL_COM1_IRQ 4 |
36 | #define SERIAL_COM1_IRQ 4 |
37 | #define SERIAL_COM2 0x2f8 |
37 | #define SERIAL_COM2 0x2f8 |
38 | #define SERIAL_COM2_IRQ 3 |
38 | #define SERIAL_COM2_IRQ 3 |
39 | 39 | ||
40 | #define P_WRITEB(where,what) (*((volatile char *) (0xB8000000+where))=what) |
40 | #define P_WRITEB(where,what) (*((volatile char *) (0xB8000000+where))=what) |
41 | #define P_READB(where) (*((volatile char *)(0xB8000000+where))) |
41 | #define P_READB(where) (*((volatile char *)(0xB8000000+where))) |
42 | 42 | ||
43 | #define SERIAL_READ(x) P_READB(x) |
43 | #define SERIAL_READ(x) P_READB(x) |
44 | #define SERIAL_WRITE(x,c) P_WRITEB(x,c) |
44 | #define SERIAL_WRITE(x,c) P_WRITEB(x,c) |
45 | /* Interrupt enable register */ |
45 | /* Interrupt enable register */ |
46 | #define SERIAL_READ_IER(x) (P_READB((x) + 1)) |
46 | #define SERIAL_READ_IER(x) (P_READB((x) + 1)) |
47 | #define SERIAL_WRITE_IER(x,c) (P_WRITEB((x)+1,c)) |
47 | #define SERIAL_WRITE_IER(x,c) (P_WRITEB((x)+1,c)) |
48 | /* Interrupt identification register */ |
48 | /* Interrupt identification register */ |
49 | #define SERIAL_READ_IIR(x) (P_READB((x) + 2)) |
49 | #define SERIAL_READ_IIR(x) (P_READB((x) + 2)) |
50 | /* Line status register */ |
50 | /* Line status register */ |
51 | #define SERIAL_READ_LSR(x) (P_READB((x) + 5)) |
51 | #define SERIAL_READ_LSR(x) (P_READB((x) + 5)) |
52 | #define TRANSMIT_EMPTY_BIT 5 |
52 | #define TRANSMIT_EMPTY_BIT 5 |
53 | 53 | ||
54 | typedef struct { |
54 | typedef struct { |
55 | int port; |
55 | int port; |
56 | int irq; |
56 | int irq; |
57 | }serial_t; |
57 | }serial_t; |
58 | 58 | ||
59 | chardev_t * serial_console(void); |
59 | void serial_console(void); |
60 | int serial_init(void); |
60 | int serial_init(void); |
61 | 61 | ||
62 | #endif |
62 | #endif |
63 | 63 |