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1465 | cejka | 1 | /* |
2 | * Copyright (C) 2006 Josef Cejka |
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3 | * Copyright (C) 2006 Jakub Vana |
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4 | * All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions |
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8 | * are met: |
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9 | * |
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10 | * - Redistributions of source code must retain the above copyright |
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11 | * notice, this list of conditions and the following disclaimer. |
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12 | * - Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * - The name of the author may not be used to endorse or promote products |
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16 | * derived from this software without specific prior written permission. |
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17 | * |
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18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | */ |
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29 | |||
30 | |||
1363 | vana | 31 | #include <io/io.h> |
32 | #include <io/stream.h> |
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33 | #include <string.h> |
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34 | #include <malloc.h> |
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35 | #include <libc.h> |
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36 | #include <ipc/ipc.h> |
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37 | #include <ipc/ns.h> |
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38 | #include <ipc/fb.h> |
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39 | #include <ipc/services.h> |
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1451 | cejka | 40 | #include <console.h> |
1465 | cejka | 41 | #include <unistd.h> |
1363 | vana | 42 | |
43 | #define FDS 32 |
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44 | |||
1366 | decky | 45 | typedef struct stream_t { |
1363 | vana | 46 | pwritefn_t w; |
47 | preadfn_t r; |
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48 | void * param; |
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1366 | decky | 49 | } stream_t; |
1363 | vana | 50 | |
1451 | cejka | 51 | int console_phone = -1; |
1363 | vana | 52 | |
1366 | decky | 53 | stream_t streams[FDS] = {{0, 0, 0}}; |
1363 | vana | 54 | |
55 | /* |
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56 | ssize_t write_stdout(void *param, const void * buf, size_t count); |
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57 | ssize_t write_stdout(void *param, const void * buf, size_t count) |
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58 | { |
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59 | return (ssize_t) __SYSCALL3(SYS_IO, 1, (sysarg_t) buf, (sysarg_t) count); |
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60 | }*/ |
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61 | |||
1451 | cejka | 62 | static ssize_t write_stderr(void *param, const void *buf, size_t count) |
1363 | vana | 63 | { |
1451 | cejka | 64 | return count; |
65 | //return (ssize_t) __SYSCALL3(SYS_IO, 1, (sysarg_t) buf, (sysarg_t) count); |
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66 | } |
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67 | |||
1465 | cejka | 68 | static ssize_t read_stdin(void *param, void *buf, size_t count) |
1451 | cejka | 69 | { |
1363 | vana | 70 | ipcarg_t r0,r1; |
1465 | cejka | 71 | size_t i = 0; |
72 | |||
73 | while (i < count) { |
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74 | if (ipc_call_sync_2(console_phone, CONSOLE_GETCHAR, 0, 0, &r0, &r1) < 0) { |
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75 | return -1; |
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76 | } |
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77 | ((char *)buf)[i++] = r0; |
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78 | } |
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79 | return i; |
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1451 | cejka | 80 | //return (ssize_t) __SYSCALL3(SYS_IO, 1, (sysarg_t) buf, (sysarg_t) count); |
1363 | vana | 81 | } |
1465 | cejka | 82 | |
1451 | cejka | 83 | static ssize_t write_stdout(void *param, const void *buf, size_t count) |
1363 | vana | 84 | { |
85 | int i; |
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1451 | cejka | 86 | ipcarg_t r0,r1; |
87 | |||
1366 | decky | 88 | for (i = 0; i < count; i++) |
1451 | cejka | 89 | ipc_call_sync_2(console_phone, CONSOLE_PUTCHAR, 0, ((const char *)buf)[i], &r0, &r1); |
1363 | vana | 90 | |
91 | return count; |
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92 | //return (ssize_t) __SYSCALL3(SYS_IO, 1, (sysarg_t) buf, (sysarg_t) count); |
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93 | } |
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94 | |||
95 | |||
96 | |||
1451 | cejka | 97 | static stream_t open_stdin(void) |
1363 | vana | 98 | { |
99 | stream_t stream; |
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100 | int phoneid; |
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101 | int res; |
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102 | |||
1451 | cejka | 103 | if (console_phone < 0) { |
104 | while ((console_phone = ipc_connect_me_to(PHONE_NS, SERVICE_CONSOLE, 0)) < 0) { |
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1452 | palkovsky | 105 | usleep(10000); |
1451 | cejka | 106 | } |
1363 | vana | 107 | } |
108 | |||
1451 | cejka | 109 | stream.r = read_stdin; |
110 | stream.param = 0; |
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111 | return stream; |
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112 | } |
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113 | |||
114 | static stream_t open_stdout(void) |
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115 | { |
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116 | stream_t stream; |
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117 | int res; |
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1363 | vana | 118 | |
1451 | cejka | 119 | if (console_phone < 0) { |
120 | while ((console_phone = ipc_connect_me_to(PHONE_NS, SERVICE_CONSOLE, 0)) < 0) { |
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121 | volatile int a; |
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122 | for (a = 0; a < 1048576; a++); |
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123 | } |
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124 | } |
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1363 | vana | 125 | |
1451 | cejka | 126 | stream.w = write_stdout; |
127 | stream.param = 0; |
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1363 | vana | 128 | return stream; |
129 | } |
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130 | |||
1366 | decky | 131 | fd_t open(const char *fname, int flags) |
1363 | vana | 132 | { |
1366 | decky | 133 | int c = 0; |
134 | |||
135 | while (((streams[c].w) || (streams[c].r)) && (c < FDS)) |
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136 | c++; |
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137 | if (c == FDS) |
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138 | return EMFILE; |
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139 | |||
140 | if (!strcmp(fname, "stdin")) { |
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1451 | cejka | 141 | streams[c] = open_stdin(); |
1363 | vana | 142 | return c; |
143 | } |
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144 | |||
1366 | decky | 145 | if (!strcmp(fname, "stdout")) { |
146 | //streams[c].w = write_stdout; |
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1363 | vana | 147 | //return c; |
1451 | cejka | 148 | streams[c] = open_stdout(); |
1363 | vana | 149 | return c; |
150 | } |
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151 | |||
1366 | decky | 152 | if (!strcmp(fname, "stderr")) { |
153 | streams[c].w = write_stderr; |
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1363 | vana | 154 | return c; |
155 | } |
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156 | } |
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157 | |||
158 | |||
1366 | decky | 159 | ssize_t write(int fd, const void *buf, size_t count) |
1363 | vana | 160 | { |
1366 | decky | 161 | if (fd < FDS) |
162 | return streams[fd].w(streams[fd].param, buf, count); |
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163 | |||
1363 | vana | 164 | return 0; |
165 | } |
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1465 | cejka | 166 | |
167 | ssize_t read(int fd, void *buf, size_t count) |
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168 | { |
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169 | if (fd < FDS) |
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170 | return streams[fd].r(streams[fd].param, buf, count); |
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171 | |||
172 | return 0; |
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173 | } |
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174 |