1 | /* |
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2 | * IMFS Device Node Handlers |
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3 | * |
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4 | * This file contains the set of handlers used to map operations on |
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5 | * IMFS device nodes onto calls to the RTEMS Classic API IO Manager. |
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6 | * |
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7 | * COPYRIGHT (c) 1989-2012. |
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8 | * On-Line Applications Research Corporation (OAR). |
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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.com/license/LICENSE. |
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13 | */ |
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14 | |
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15 | #if HAVE_CONFIG_H |
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16 | #include "config.h" |
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17 | #endif |
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18 | |
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19 | #include "imfs.h" |
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20 | |
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21 | #include <rtems/deviceio.h> |
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22 | |
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23 | int device_open( |
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24 | rtems_libio_t *iop, |
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25 | const char *pathname, |
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26 | int oflag, |
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27 | mode_t mode |
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28 | ) |
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29 | { |
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30 | IMFS_jnode_t *the_jnode; |
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31 | |
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32 | the_jnode = iop->pathinfo.node_access; |
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33 | |
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34 | return rtems_deviceio_open( |
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35 | iop, |
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36 | pathname, |
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37 | oflag, |
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38 | mode, |
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39 | the_jnode->info.device.major, |
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40 | the_jnode->info.device.minor |
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41 | ); |
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42 | } |
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43 | |
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44 | int device_close( |
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45 | rtems_libio_t *iop |
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46 | ) |
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47 | { |
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48 | IMFS_jnode_t *the_jnode; |
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49 | |
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50 | the_jnode = iop->pathinfo.node_access; |
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51 | |
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52 | return rtems_deviceio_close( |
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53 | iop, |
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54 | the_jnode->info.device.major, |
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55 | the_jnode->info.device.minor |
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56 | ); |
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57 | } |
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58 | |
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59 | ssize_t device_read( |
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60 | rtems_libio_t *iop, |
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61 | void *buffer, |
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62 | size_t count |
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63 | ) |
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64 | { |
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65 | IMFS_jnode_t *the_jnode; |
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66 | |
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67 | the_jnode = iop->pathinfo.node_access; |
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68 | |
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69 | return rtems_deviceio_read( |
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70 | iop, |
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71 | buffer, |
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72 | count, |
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73 | the_jnode->info.device.major, |
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74 | the_jnode->info.device.minor |
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75 | ); |
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76 | } |
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77 | |
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78 | ssize_t device_write( |
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79 | rtems_libio_t *iop, |
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80 | const void *buffer, |
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81 | size_t count |
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82 | ) |
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83 | { |
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84 | IMFS_jnode_t *the_jnode; |
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85 | |
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86 | the_jnode = iop->pathinfo.node_access; |
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87 | |
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88 | return rtems_deviceio_write( |
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89 | iop, |
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90 | buffer, |
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91 | count, |
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92 | the_jnode->info.device.major, |
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93 | the_jnode->info.device.minor |
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94 | ); |
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95 | } |
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96 | |
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97 | int device_ioctl( |
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98 | rtems_libio_t *iop, |
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99 | ioctl_command_t command, |
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100 | void *buffer |
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101 | ) |
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102 | { |
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103 | IMFS_jnode_t *the_jnode; |
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104 | |
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105 | the_jnode = iop->pathinfo.node_access; |
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106 | |
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107 | return rtems_deviceio_control( |
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108 | iop, |
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109 | command, |
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110 | buffer, |
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111 | the_jnode->info.device.major, |
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112 | the_jnode->info.device.minor |
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113 | ); |
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114 | } |
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115 | |
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116 | int device_ftruncate( |
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117 | rtems_libio_t *iop, |
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118 | off_t length |
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119 | ) |
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120 | { |
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121 | return 0; |
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122 | } |
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