1 /* 2 * Copyright 2014 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 <nvif/device.h> 26 27 void 28 nvif_device_fini(struct nvif_device *device) 29 { 30 nvif_object_fini(&device->base); 31 } 32 33 int 34 nvif_device_init(struct nvif_object *parent, void (*dtor)(struct nvif_device *), 35 u32 handle, u32 oclass, void *data, u32 size, 36 struct nvif_device *device) 37 { 38 int ret = nvif_object_init(parent, (void *)dtor, handle, oclass, 39 data, size, &device->base); 40 if (ret == 0) { 41 device->object = &device->base; 42 device->info.version = 0; 43 ret = nvif_object_mthd(&device->base, NV_DEVICE_V0_INFO, 44 &device->info, sizeof(device->info)); 45 } 46 return ret; 47 } 48 49 static void 50 nvif_device_del(struct nvif_device *device) 51 { 52 nvif_device_fini(device); 53 kfree(device); 54 } 55 56 int 57 nvif_device_new(struct nvif_object *parent, u32 handle, u32 oclass, 58 void *data, u32 size, struct nvif_device **pdevice) 59 { 60 struct nvif_device *device = kzalloc(sizeof(*device), GFP_KERNEL); 61 if (device) { 62 int ret = nvif_device_init(parent, nvif_device_del, handle, 63 oclass, data, size, device); 64 if (ret) { 65 kfree(device); 66 device = NULL; 67 } 68 *pdevice = device; 69 return ret; 70 } 71 return -ENOMEM; 72 } 73 74 void 75 nvif_device_ref(struct nvif_device *device, struct nvif_device **pdevice) 76 { 77 nvif_object_ref(&device->base, (struct nvif_object **)pdevice); 78 } 79