subdev/fuse/base.c

0001 /*
0002  * Copyright 2014 Martin Peres
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: Martin Peres
0023  */
0024 #include "priv.h"
0025
0026 u32
0027 nvkm_fuse_read(struct nvkm_fuse *fuse, u32 addr)
0028 {
0029     return fuse->func->read(fuse, addr);
0030 }
0031
0032 static void *
0033 nvkm_fuse_dtor(struct nvkm_subdev *subdev)
0034 {
0035     return nvkm_fuse(subdev);
0036 }
0037
0038 static const struct nvkm_subdev_func
0039 nvkm_fuse = {
0040     .dtor = nvkm_fuse_dtor,
0041 };
0042
0043 int
0044 nvkm_fuse_new_(const struct nvkm_fuse_func *func, struct nvkm_device *device,
0045            enum nvkm_subdev_type type, int inst, struct nvkm_fuse **pfuse)
0046 {
0047     struct nvkm_fuse *fuse;
0048     if (!(fuse = *pfuse = kzalloc(sizeof(*fuse), GFP_KERNEL)))
0049         return -ENOMEM;
0050     nvkm_subdev_ctor(&nvkm_fuse, device, type, inst, &fuse->subdev);
0051     fuse->func = func;
0052     spin_lock_init(&fuse->lock);
0053     return 0;
0054 }