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4358 | Serge | 1 | /* |
2 | * Copyright © 2011 Intel Corporation |
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3 | * |
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4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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5 | * copy of this software and associated documentation files (the "Software"), |
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6 | * to deal in the Software without restriction, including without limitation |
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7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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8 | * and/or sell copies of the Software, and to permit persons to whom the |
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9 | * Software is furnished to do so, subject to the following conditions: |
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10 | * |
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11 | * The above copyright notice and this permission notice (including the next |
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12 | * paragraph) shall be included in all copies or substantial portions of the |
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13 | * Software. |
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14 | * |
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15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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16 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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18 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
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19 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
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20 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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22 | * DEALINGS IN THE SOFTWARE. |
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23 | * |
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24 | * Authors: |
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25 | * Kristian Høgsberg |
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26 | * Benjamin Franzke |
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27 | */ |
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28 | |||
29 | #include |
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30 | #include |
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31 | |||
32 | #include |
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33 | |||
34 | #include "gbm_driint.h" |
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35 | #define DRIVER_MAP_DRI2_ONLY |
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36 | #include "pci_ids/pci_id_driver_map.h" |
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37 | |||
38 | char * |
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39 | dri_fd_get_driver_name(int fd) |
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40 | { |
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41 | struct udev *udev; |
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42 | struct udev_device *device, *parent; |
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43 | const char *pci_id; |
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44 | char *driver = NULL; |
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45 | int vendor_id, chip_id, i, j; |
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46 | |||
47 | udev = udev_new(); |
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48 | device = _gbm_udev_device_new_from_fd(udev, fd); |
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49 | if (device == NULL) |
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50 | return NULL; |
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51 | |||
52 | parent = udev_device_get_parent(device); |
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53 | if (parent == NULL) { |
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54 | fprintf(stderr, "gbm: could not get parent device"); |
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55 | goto out; |
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56 | } |
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57 | |||
58 | pci_id = udev_device_get_property_value(parent, "PCI_ID"); |
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59 | if (pci_id == NULL || |
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60 | sscanf(pci_id, "%x:%x", &vendor_id, &chip_id) != 2) { |
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61 | fprintf(stderr, "gbm: malformed or no PCI ID"); |
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62 | goto out; |
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63 | } |
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64 | |||
65 | for (i = 0; driver_map[i].driver; i++) { |
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66 | if (vendor_id != driver_map[i].vendor_id) |
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67 | continue; |
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68 | if (driver_map[i].num_chips_ids == -1) { |
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69 | driver = strdup(driver_map[i].driver); |
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70 | _gbm_log("pci id for %d: %04x:%04x, driver %s", |
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71 | fd, vendor_id, chip_id, driver); |
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72 | goto out; |
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73 | } |
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74 | |||
75 | for (j = 0; j < driver_map[i].num_chips_ids; j++) |
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76 | if (driver_map[i].chip_ids[j] == chip_id) { |
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77 | driver = strdup(driver_map[i].driver); |
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78 | _gbm_log("pci id for %d: %04x:%04x, driver %s", |
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79 | fd, vendor_id, chip_id, driver); |
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80 | goto out; |
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81 | } |
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82 | } |
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83 | |||
84 | out: |
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85 | udev_device_unref(device); |
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86 | udev_unref(udev); |
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87 | |||
88 | return driver; |
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89 | }> |