1 /* 2 * Copyright 2013 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs <bskeggs@redhat.com> 23 */ 24 25 #include "client.h" 26 #include "driver.h" 27 #include "ioctl.h" 28 29 int 30 nvif_client_ioctl(struct nvif_client *client, void *data, u32 size) 31 { 32 return client->driver->ioctl(client->base.priv, client->super, data, size, NULL); 33 } 34 35 int 36 nvif_client_suspend(struct nvif_client *client) 37 { 38 return client->driver->suspend(client->base.priv); 39 } 40 41 int 42 nvif_client_resume(struct nvif_client *client) 43 { 44 return client->driver->resume(client->base.priv); 45 } 46 47 void 48 nvif_client_fini(struct nvif_client *client) 49 { 50 if (client->driver) { 51 client->driver->fini(client->base.priv); 52 client->driver = NULL; 53 client->base.parent = NULL; 54 nvif_object_fini(&client->base); 55 } 56 } 57 58 const struct nvif_driver * 59 nvif_drivers[] = { 60 #ifdef __KERNEL__ 61 &nvif_driver_nvkm, 62 #else 63 &nvif_driver_drm, 64 &nvif_driver_lib, 65 #endif 66 NULL 67 }; 68 69 int 70 nvif_client_init(void (*dtor)(struct nvif_client *), const char *driver, 71 const char *name, u64 device, const char *cfg, const char *dbg, 72 struct nvif_client *client) 73 { 74 int ret, i; 75 76 ret = nvif_object_init(NULL, (void*)dtor, 0, 0, NULL, 0, &client->base); 77 if (ret) 78 return ret; 79 80 client->base.parent = &client->base; 81 client->base.handle = ~0; 82 client->object = &client->base; 83 client->super = true; 84 85 for (i = 0, ret = -EINVAL; (client->driver = nvif_drivers[i]); i++) { 86 if (!driver || !strcmp(client->driver->name, driver)) { 87 ret = client->driver->init(name, device, cfg, dbg, 88 &client->base.priv); 89 if (!ret || driver) 90 break; 91 } 92 } 93 94 if (ret) 95 nvif_client_fini(client); 96 return ret; 97 } 98 99 static void 100 nvif_client_del(struct nvif_client *client) 101 { 102 nvif_client_fini(client); 103 kfree(client); 104 } 105 106 int 107 nvif_client_new(const char *driver, const char *name, u64 device, 108 const char *cfg, const char *dbg, 109 struct nvif_client **pclient) 110 { 111 struct nvif_client *client = kzalloc(sizeof(*client), GFP_KERNEL); 112 if (client) { 113 int ret = nvif_client_init(nvif_client_del, driver, name, 114 device, cfg, dbg, client); 115 if (ret) { 116 kfree(client); 117 client = NULL; 118 } 119 *pclient = client; 120 return ret; 121 } 122 return -ENOMEM; 123 } 124 125 void 126 nvif_client_ref(struct nvif_client *client, struct nvif_client **pclient) 127 { 128 nvif_object_ref(&client->base, (struct nvif_object **)pclient); 129 } 130