1 | /* |
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2 | * Copyright (c) 2017 embedded brains GmbH. All rights reserved. |
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3 | * |
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4 | * embedded brains GmbH |
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5 | * Dornierstr. 4 |
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6 | * 82178 Puchheim |
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7 | * Germany |
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8 | * <rtems@embedded-brains.de> |
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9 | * |
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10 | * The license and distribution terms for this file may be |
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11 | * found in the file LICENSE in this distribution or at |
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12 | * http://www.rtems.org/license/LICENSE. |
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13 | */ |
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14 | |
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15 | #include <rtems/console.h> |
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16 | #include <rtems/bspIo.h> |
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17 | #include <rtems/imfs.h> |
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18 | |
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19 | static ssize_t _Console_simple_Read( |
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20 | rtems_libio_t *iop, |
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21 | void *buffer, |
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22 | size_t count |
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23 | ) |
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24 | { |
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25 | char *buf; |
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26 | ssize_t i; |
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27 | ssize_t n; |
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28 | |
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29 | buf = buffer; |
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30 | n = (ssize_t) count; |
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31 | |
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32 | for ( i = 0; i < n; ++i ) { |
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33 | int c; |
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34 | |
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35 | do { |
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36 | c = getchark(); |
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37 | } while (c == -1); |
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38 | |
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39 | buf[ i ] = (char) c; |
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40 | } |
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41 | |
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42 | return n; |
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43 | } |
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44 | |
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45 | static ssize_t _Console_simple_Write( |
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46 | rtems_libio_t *iop, |
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47 | const void *buffer, |
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48 | size_t count |
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49 | ) |
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50 | { |
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51 | const char *buf; |
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52 | ssize_t i; |
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53 | ssize_t n; |
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54 | |
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55 | buf = buffer; |
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56 | n = (ssize_t) count; |
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57 | |
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58 | for ( i = 0; i < n; ++i ) { |
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59 | rtems_putc( buf[ i ] ); |
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60 | } |
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61 | |
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62 | return n; |
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63 | } |
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64 | |
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65 | static const rtems_filesystem_file_handlers_r _Console_simple_Handlers = { |
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66 | .open_h = rtems_filesystem_default_open, |
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67 | .close_h = rtems_filesystem_default_close, |
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68 | .read_h = _Console_simple_Read, |
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69 | .write_h = _Console_simple_Write, |
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70 | .ioctl_h = rtems_filesystem_default_ioctl, |
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71 | .lseek_h = rtems_filesystem_default_lseek, |
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72 | .fstat_h = IMFS_stat, |
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73 | .ftruncate_h = rtems_filesystem_default_ftruncate, |
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74 | .fsync_h = rtems_filesystem_default_fsync_or_fdatasync, |
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75 | .fdatasync_h = rtems_filesystem_default_fsync_or_fdatasync, |
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76 | .fcntl_h = rtems_filesystem_default_fcntl, |
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77 | .readv_h = rtems_filesystem_default_readv, |
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78 | .writev_h = rtems_filesystem_default_writev, |
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79 | .mmap_h = rtems_filesystem_default_mmap |
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80 | }; |
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81 | |
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82 | static const IMFS_node_control |
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83 | _Console_simple_Node_control = IMFS_GENERIC_INITIALIZER( |
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84 | &_Console_simple_Handlers, |
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85 | IMFS_node_initialize_default, |
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86 | IMFS_node_destroy_default |
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87 | ); |
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88 | |
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89 | void _Console_simple_Initialize( void ) |
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90 | { |
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91 | IMFS_make_generic_node( |
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92 | CONSOLE_DEVICE_NAME, |
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93 | S_IFCHR | S_IRWXU | S_IRWXG | S_IRWXO, |
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94 | &_Console_simple_Node_control, |
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95 | NULL |
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96 | ); |
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97 | } |
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