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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 | #include <putchar.h> |
29 | #include <putchar.h> |
30 | #include <arch/types.h> |
30 | #include <arch/types.h> |
31 | #include <arch/cp0.h> |
31 | #include <arch/cp0.h> |
32 | #include <arch/console.h> |
32 | #include <arch/console.h> |
33 | #include <arch.h> |
33 | #include <arch.h> |
34 | #include <arch/drivers/arc.h> |
34 | #include <arch/drivers/arc.h> |
35 | #include <arch/arch.h> |
35 | #include <arch/arch.h> |
36 | 36 | ||
37 | /** Putchar that works with MSIM & gxemul */ |
37 | /** Putchar that works with MSIM & gxemul */ |
38 | static void cons_putchar(const char ch) |
38 | static void cons_putchar(const char ch) |
39 | { |
39 | { |
40 | *((char *) VIDEORAM) = ch; |
40 | *((char *) VIDEORAM) = ch; |
41 | } |
41 | } |
42 | 42 | ||
43 | /** Putchar that works with simics */ |
43 | /** Putchar that works with simics */ |
44 | static void serial_putchar(const char ch) |
44 | static void serial_putchar(const char ch) |
45 | { |
45 | { |
46 | int i; |
46 | int i; |
47 | 47 | ||
48 | if (ch=='\n') |
48 | if (ch=='\n') |
49 | putchar('\r'); |
49 | putchar('\r'); |
50 | 50 | ||
51 | /* Wait until transmit buffer empty */ |
51 | /* Wait until transmit buffer empty */ |
52 | while (! ((*SERIAL_LSR) & (1<<TRANSMIT_EMPTY_BIT))) |
52 | while (! ((*SERIAL_LSR) & (1<<TRANSMIT_EMPTY_BIT))) |
53 | ; |
53 | ; |
54 | *(SERIAL_PORT_BASE) = ch; |
54 | *(SERIAL_PORT_BASE) = ch; |
55 | } |
55 | } |
56 | 56 | ||
57 | static void (*putchar_func)(const char ch) = cons_putchar; |
57 | static void (*putchar_func)(const char ch) = cons_putchar; |
58 | 58 | ||
59 | void console_init(void) |
59 | void console_init(void) |
60 | { |
60 | { |
61 | if (arc_enabled()) |
61 | if (arc_enabled()) |
62 | putchar_func = arc_putchar; |
62 | putchar_func = arc_putchar; |
63 | /* The LSR on the start usually contains this value */ |
63 | /* The LSR on the start usually contains this value */ |
64 | else if (*SERIAL_LSR == 0x60) |
64 | else if (*SERIAL_LSR == 0x60) |
65 | putchar_func = serial_putchar; |
65 | putchar_func = serial_putchar; |
66 | else |
66 | else |
67 | putchar_func = cons_putchar; |
67 | putchar_func = cons_putchar; |
68 | } |
68 | } |
69 | 69 | ||
70 | void putchar(const char ch) |
70 | void putchar(const char ch) |
71 | { |
71 | { |
72 | putchar_func(ch); |
72 | putchar_func(ch); |
73 | } |
73 | } |
74 | 74 |