1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief Common IO Control Primitive |
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5 | * @ingroup rtems_blkdev |
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6 | */ |
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7 | |
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8 | /* |
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9 | * Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia |
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10 | * Author: Victor V. Vengerov <vvv@oktet.ru> |
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11 | */ |
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12 | |
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13 | #if HAVE_CONFIG_H |
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14 | #include "config.h" |
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15 | #endif |
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16 | |
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17 | #include <errno.h> |
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18 | |
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19 | #include <rtems/blkdev.h> |
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20 | #include <rtems/bdbuf.h> |
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21 | |
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22 | int |
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23 | rtems_blkdev_ioctl(rtems_disk_device *dd, uint32_t req, void *argp) |
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24 | { |
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25 | rtems_status_code sc; |
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26 | int rc = 0; |
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27 | |
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28 | switch (req) |
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29 | { |
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30 | case RTEMS_BLKIO_GETMEDIABLKSIZE: |
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31 | *(uint32_t *) argp = dd->media_block_size; |
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32 | break; |
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33 | |
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34 | case RTEMS_BLKIO_GETBLKSIZE: |
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35 | *(uint32_t *) argp = dd->block_size; |
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36 | break; |
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37 | |
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38 | case RTEMS_BLKIO_SETBLKSIZE: |
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39 | sc = rtems_bdbuf_set_block_size(dd, *(uint32_t *) argp, true); |
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40 | if (sc != RTEMS_SUCCESSFUL) { |
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41 | errno = EIO; |
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42 | rc = -1; |
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43 | } |
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44 | break; |
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45 | |
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46 | case RTEMS_BLKIO_GETSIZE: |
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47 | *(rtems_blkdev_bnum *) argp = dd->size; |
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48 | break; |
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49 | |
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50 | case RTEMS_BLKIO_SYNCDEV: |
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51 | sc = rtems_bdbuf_syncdev(dd); |
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52 | if (sc != RTEMS_SUCCESSFUL) { |
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53 | errno = EIO; |
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54 | rc = -1; |
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55 | } |
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56 | break; |
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57 | |
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58 | case RTEMS_BLKIO_GETDISKDEV: |
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59 | *(rtems_disk_device **) argp = dd; |
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60 | break; |
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61 | |
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62 | case RTEMS_BLKIO_PURGEDEV: |
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63 | rtems_bdbuf_purge_dev(dd); |
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64 | break; |
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65 | |
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66 | case RTEMS_BLKIO_GETDEVSTATS: |
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67 | rtems_bdbuf_get_device_stats(dd, (rtems_blkdev_stats *) argp); |
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68 | break; |
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69 | |
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70 | case RTEMS_BLKIO_RESETDEVSTATS: |
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71 | rtems_bdbuf_reset_device_stats(dd); |
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72 | break; |
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73 | |
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74 | default: |
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75 | errno = EINVAL; |
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76 | rc = -1; |
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77 | break; |
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78 | } |
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79 | |
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80 | return rc; |
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81 | } |
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