drm-lease-manager/test/test-drm-device.c

   1 /* Copyright 2020-2021 IGEL Co., Ltd.
   2  *
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15
  16 #include <check.h>
  17 #include <stdbool.h>
  18 #include <stdlib.h>
  19 #include <string.h>
  20 #include <unistd.h>
  21 #include <xf86drmMode.h>
  22
  23 #include "test-drm-device.h"
  24 #define UNUSED(x) (void)(x)
  25
  26 /* Set the base value for IDs of each resource type.
  27  * These can be adjusted if test cases need more IDs. */
  28 #define IDS_PER_RES_TYPE 32
  29
  30 #define CRTC_BASE (IDS_PER_RES_TYPE)
  31 #define CONNECTOR_BASE (CRTC_BASE + IDS_PER_RES_TYPE)
  32 #define ENCODER_BASE (CONNECTOR_BASE + IDS_PER_RES_TYPE)
  33 #define PLANE_BASE (ENCODER_BASE + IDS_PER_RES_TYPE)
  34 #define LESSEE_ID_BASE (PLANE_BASE + IDS_PER_RES_TYPE)
  35
  36 struct drm_device test_device;
  37
  38 #define ALLOC_RESOURCE(res, container)                           \
  39         do {                                                     \
  40                 if (res != 0) {                                  \
  41                         test_device.container.res =              \
  42                             malloc(sizeof(uint32_t) * res);      \
  43                         if (!test_device.container.res)          \
  44                                 return false;                    \
  45                         test_device.container.count_##res = res; \
  46                 }                                                \
  47         } while (0)
  48
  49 #define FILL_RESOURCE(res, RES, container)                     \
  50         for (int i = 0; i < res; i++) {                        \
  51                 test_device.container.res[i] = RES##_BASE + i; \
  52         }
  53
  54 bool setup_drm_test_device(int crtcs, int connectors, int encoders, int planes)
  55 {
  56         int lessee_ids = crtcs;
  57         ALLOC_RESOURCE(crtcs, resources);
  58         ALLOC_RESOURCE(connectors, resources);
  59         ALLOC_RESOURCE(encoders, resources);
  60         ALLOC_RESOURCE(planes, plane_resources);
  61         ALLOC_RESOURCE(lessee_ids, leases);
  62
  63         FILL_RESOURCE(crtcs, CRTC, resources);
  64         FILL_RESOURCE(connectors, CONNECTOR, resources);
  65         FILL_RESOURCE(encoders, ENCODER, resources);
  66         FILL_RESOURCE(planes, PLANE, plane_resources);
  67         FILL_RESOURCE(lessee_ids, LESSEE_ID, leases);
  68
  69         return true;
  70 }
  71
  72 void reset_drm_test_device(void)
  73 {
  74         free(test_device.resources.crtcs);
  75         free(test_device.resources.connectors);
  76         free(test_device.resources.encoders);
  77         free(test_device.plane_resources.planes);
  78         free(test_device.leases.lessee_ids);
  79         memset(&test_device, 0, sizeof(test_device));
  80 }
  81
  82 void setup_test_device_layout(drmModeConnector *connectors,
  83                               drmModeEncoder *encoders, drmModePlane *planes)
  84 {
  85         test_device.layout.connectors = connectors;
  86         test_device.layout.encoders = encoders;
  87         test_device.layout.planes = planes;
  88 }
  89
  90 #define GET_DRM_RESOURCE_FN(Res, res, RES, container)                       \
  91         drmMode##Res##Ptr get_##res(int fd, uint32_t id)                    \
  92         {                                                                   \
  93                 UNUSED(fd);                                                 \
  94                 if (id == 0)                                                \
  95                         return NULL;                                        \
  96                 ck_assert_int_ge(id, RES##_BASE);                           \
  97                 ck_assert_int_lt(                                           \
  98                     id, RES##_BASE + test_device.container.count_##res##s); \
  99                 return &test_device.layout.res##s[id - RES##_BASE];         \
 100         }
 101
 102 GET_DRM_RESOURCE_FN(Connector, connector, CONNECTOR, resources)
 103 GET_DRM_RESOURCE_FN(Encoder, encoder, ENCODER, resources)
 104 GET_DRM_RESOURCE_FN(Plane, plane, PLANE, plane_resources)
 105
 106 int create_lease(int fd, const uint32_t *objects, int num_objects, int flags,
 107                  uint32_t *lessee_id)
 108 {
 109         UNUSED(objects);
 110         UNUSED(num_objects);
 111         UNUSED(flags);
 112
 113         int lease_count = test_device.leases.count;
 114         if (lease_count < test_device.leases.count_lessee_ids)
 115                 *lessee_id = test_device.leases.lessee_ids[lease_count];
 116         else
 117                 *lessee_id = 0;
 118
 119         test_device.leases.count++;
 120
 121         return dup(fd);
 122 }