1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief Device Operations Table |
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5 | * @ingroup IMFS |
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6 | */ |
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7 | |
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8 | /* |
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9 | * COPYRIGHT (c) 1989-1999. |
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10 | * On-Line Applications Research Corporation (OAR). |
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11 | * |
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12 | * The license and distribution terms for this file may be |
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13 | * found in the file LICENSE in this distribution or at |
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14 | * http://www.rtems.org/license/LICENSE. |
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15 | */ |
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16 | |
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17 | #if HAVE_CONFIG_H |
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18 | #include "config.h" |
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19 | #endif |
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20 | |
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21 | #include "imfs.h" |
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22 | |
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23 | static int IMFS_stat_device( |
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24 | const rtems_filesystem_location_info_t *loc, |
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25 | struct stat *buf |
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26 | ) |
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27 | { |
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28 | const IMFS_jnode_t *node = loc->node_access; |
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29 | const IMFS_device_t *io = &node->info.device; |
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30 | |
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31 | buf->st_rdev = rtems_filesystem_make_dev_t( io->major, io->minor ); |
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32 | |
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33 | return IMFS_stat( loc, buf ); |
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34 | } |
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35 | |
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36 | static const rtems_filesystem_file_handlers_r IMFS_device_handlers = { |
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37 | .open_h = device_open, |
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38 | .close_h = device_close, |
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39 | .read_h = device_read, |
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40 | .write_h = device_write, |
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41 | .ioctl_h = device_ioctl, |
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42 | .lseek_h = rtems_filesystem_default_lseek_file, |
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43 | .fstat_h = IMFS_stat_device, |
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44 | .ftruncate_h = device_ftruncate, |
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45 | .fsync_h = rtems_filesystem_default_fsync_or_fdatasync, |
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46 | .fdatasync_h = rtems_filesystem_default_fsync_or_fdatasync, |
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47 | .fcntl_h = rtems_filesystem_default_fcntl, |
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48 | .kqfilter_h = rtems_filesystem_default_kqfilter, |
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49 | .poll_h = rtems_filesystem_default_poll, |
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50 | .readv_h = rtems_filesystem_default_readv, |
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51 | .writev_h = rtems_filesystem_default_writev |
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52 | }; |
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53 | |
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54 | static IMFS_jnode_t *IMFS_node_initialize_device( |
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55 | IMFS_jnode_t *node, |
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56 | const IMFS_types_union *info |
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57 | ) |
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58 | { |
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59 | node->info.device.major = info->device.major; |
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60 | node->info.device.minor = info->device.minor; |
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61 | |
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62 | return node; |
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63 | } |
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64 | |
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65 | const IMFS_node_control IMFS_node_control_device = { |
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66 | .imfs_type = IMFS_DEVICE, |
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67 | .handlers = &IMFS_device_handlers, |
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68 | .node_initialize = IMFS_node_initialize_device, |
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69 | .node_remove = IMFS_node_remove_default, |
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70 | .node_destroy = IMFS_node_destroy_default |
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71 | }; |
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