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1 | /* |
1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
2 | * Copyright (C) 2005 Jakub Jermar |
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 <arch/ski/ski.h> |
29 | #include <arch/ski/ski.h> |
30 | #include <console/console.h> |
30 | #include <console/console.h> |
31 | #include <console/chardev.h> |
31 | #include <console/chardev.h> |
32 | 32 | ||
33 | static chardev_t ski_console; |
33 | static chardev_t ski_console; |
34 | static bool kb_disable; |
34 | static bool kb_disable; |
35 | 35 | ||
36 | static void ski_write(chardev_t *d, const char ch); |
36 | static void ski_putchar(chardev_t *d, const char ch); |
37 | static __s32 ski_getchar(void); |
37 | static __s32 ski_getchar(void); |
38 | 38 | ||
39 | /** Display character on debug console |
39 | /** Display character on debug console |
40 | * |
40 | * |
41 | * Use SSC (Simulator System Call) to |
41 | * Use SSC (Simulator System Call) to |
42 | * display character on debug console. |
42 | * display character on debug console. |
43 | * |
43 | * |
44 | * @param d Character device. |
44 | * @param d Character device. |
45 | * @param ch Character to be printed. |
45 | * @param ch Character to be printed. |
46 | */ |
46 | */ |
47 | void ski_write(chardev_t *d, const char ch) |
47 | void ski_putchar(chardev_t *d, const char ch) |
48 | { |
48 | { |
49 | __asm__ ( |
49 | __asm__ ( |
50 | "mov r15=%0\n" |
50 | "mov r15=%0\n" |
51 | "mov r32=%1\n" /* r32 is in0 */ |
51 | "mov r32=%1\n" /* r32 is in0 */ |
52 | "break 0x80000\n" /* modifies r8 */ |
52 | "break 0x80000\n" /* modifies r8 */ |
53 | : |
53 | : |
54 | : "i" (SKI_PUTCHAR), "r" (ch) |
54 | : "i" (SKI_PUTCHAR), "r" (ch) |
55 | : "r15", "in0", "r8" |
55 | : "r15", "in0", "r8" |
56 | ); |
56 | ); |
57 | 57 | ||
58 | if (ch == '\n') |
58 | if (ch == '\n') |
59 | ski_write(d, '\r'); |
59 | ski_putchar(d, '\r'); |
60 | } |
60 | } |
61 | 61 | ||
62 | /** Ask debug console if a key was pressed. |
62 | /** Ask debug console if a key was pressed. |
63 | * |
63 | * |
64 | * Use SSC (Simulator System Call) to |
64 | * Use SSC (Simulator System Call) to |
65 | * get character from debug console. |
65 | * get character from debug console. |
66 | * |
66 | * |
67 | * This call is non-blocking. |
67 | * This call is non-blocking. |
68 | * |
68 | * |
69 | * @return ASCII code of pressed key or 0 if no key pressed. |
69 | * @return ASCII code of pressed key or 0 if no key pressed. |
70 | */ |
70 | */ |
71 | __s32 ski_getchar(void) |
71 | __s32 ski_getchar(void) |
72 | { |
72 | { |
73 | __u64 ch; |
73 | __u64 ch; |
74 | 74 | ||
75 | __asm__ ( |
75 | __asm__ ( |
76 | "mov r15=%1\n" |
76 | "mov r15=%1\n" |
77 | "break 0x80000;;\n" /* modifies r8 */ |
77 | "break 0x80000;;\n" /* modifies r8 */ |
78 | "mov %0=r8;;\n" |
78 | "mov %0=r8;;\n" |
79 | 79 | ||
80 | : "=r" (ch) |
80 | : "=r" (ch) |
81 | : "i" (SKI_GETCHAR) |
81 | : "i" (SKI_GETCHAR) |
82 | : "r15", "r8" |
82 | : "r15", "r8" |
83 | ); |
83 | ); |
84 | 84 | ||
85 | return (__s32) ch; |
85 | return (__s32) ch; |
86 | } |
86 | } |
87 | 87 | ||
88 | /** Ask keyboard if a key was pressed. */ |
88 | /** Ask keyboard if a key was pressed. */ |
89 | void poll_keyboard(void) |
89 | void poll_keyboard(void) |
90 | { |
90 | { |
91 | char ch; |
91 | char ch; |
92 | 92 | ||
93 | if (kb_disable) |
93 | if (kb_disable) |
94 | return; |
94 | return; |
95 | 95 | ||
96 | ch = ski_getchar(); |
96 | ch = ski_getchar(); |
97 | if(ch == '\r') |
97 | if(ch == '\r') |
98 | ch = '\n'; |
98 | ch = '\n'; |
99 | if (ch) |
99 | if (ch) |
100 | chardev_push_character(&ski_console, ch); |
100 | chardev_push_character(&ski_console, ch); |
101 | } |
101 | } |
102 | 102 | ||
103 | /* Called from getc(). */ |
103 | /* Called from getc(). */ |
104 | static void ski_kb_enable(chardev_t *d) |
104 | static void ski_kb_enable(chardev_t *d) |
105 | { |
105 | { |
106 | kb_disable = false; |
106 | kb_disable = false; |
107 | } |
107 | } |
108 | 108 | ||
109 | /* Called from getc(). */ |
109 | /* Called from getc(). */ |
110 | static void ski_kb_disable(chardev_t *d) |
110 | static void ski_kb_disable(chardev_t *d) |
111 | { |
111 | { |
112 | kb_disable = true; |
112 | kb_disable = true; |
113 | } |
113 | } |
114 | 114 | ||
115 | 115 | ||
116 | static chardev_operations_t ski_ops = { |
116 | static chardev_operations_t ski_ops = { |
117 | .resume = ski_kb_enable, |
117 | .resume = ski_kb_enable, |
118 | .suspend = ski_kb_disable, |
118 | .suspend = ski_kb_disable, |
119 | .write = ski_write |
119 | .write = ski_putchar |
120 | }; |
120 | }; |
121 | 121 | ||
122 | 122 | ||
123 | /** Initialize debug console |
123 | /** Initialize debug console |
124 | * |
124 | * |
125 | * Issue SSC (Simulator System Call) to |
125 | * Issue SSC (Simulator System Call) to |
126 | * to open debug console. |
126 | * to open debug console. |
127 | */ |
127 | */ |
128 | void ski_init_console(void) |
128 | void ski_init_console(void) |
129 | { |
129 | { |
130 | __asm__ ( |
130 | __asm__ ( |
131 | "mov r15=%0\n" |
131 | "mov r15=%0\n" |
132 | "break 0x80000\n" |
132 | "break 0x80000\n" |
133 | : |
133 | : |
134 | : "i" (SKI_INIT_CONSOLE) |
134 | : "i" (SKI_INIT_CONSOLE) |
135 | : "r15", "r8" |
135 | : "r15", "r8" |
136 | ); |
136 | ); |
137 | 137 | ||
138 | chardev_initialize("ski_console", &ski_console, &ski_ops); |
138 | chardev_initialize("ski_console", &ski_console, &ski_ops); |
139 | stdin = &ski_console; |
139 | stdin = &ski_console; |
140 | stdout = &ski_console; |
140 | stdout = &ski_console; |
141 | } |
141 | } |
142 | 142 |