projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 046fdb2a AC |
1 | /* |
| 2 | * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. | |
| 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
| 19 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
| 20 | * DEALINGS IN THE SOFTWARE. | |
| 21 | */ | |
| 22 | #include <core/device.h> | |
| 23 | ||
| 24 | /** | |
| 25 | * nvkm_firmware_get - load firmware from the official nvidia/chip/ directory | |
| 26 | * @device device that will use that firmware | |
| 27 | * @fwname name of firmware file to load | |
| 28 | * @fw firmware structure to load to | |
| 29 | * | |
| 30 | * Use this function to load firmware files in the form nvidia/chip/fwname.bin. | |
| 31 | * Firmware files released by NVIDIA will always follow this format. | |
| 32 | */ | |
| 33 | int | |
| 34 | nvkm_firmware_get(struct nvkm_device *device, const char *fwname, | |
| 35 | const struct firmware **fw) | |
| 36 | { | |
| 37 | char f[64]; | |
| 38 | char cname[16]; | |
| 39 | int i; | |
| 40 | ||
| 41 | /* Convert device name to lowercase */ | |
| 42 | strncpy(cname, device->chip->name, sizeof(cname)); | |
| 43 | cname[sizeof(cname) - 1] = '\0'; | |
| 44 | i = strlen(cname); | |
| 45 | while (i) { | |
| 46 | --i; | |
| 47 | cname[i] = tolower(cname[i]); | |
| 48 | } | |
| 49 | ||
| 50 | snprintf(f, sizeof(f), "nvidia/%s/%s.bin", cname, fwname); | |
| 51 | return request_firmware(fw, f, device->dev); | |
| 52 | } | |
| 53 | ||
| 54 | /** | |
| 55 | * nvkm_firmware_put - release firmware loaded with nvkm_firmware_get | |
| 56 | */ | |
| 57 | void | |
| 58 | nvkm_firmware_put(const struct firmware *fw) | |
| 59 | { | |
| 60 | release_firmware(fw); | |
| 61 | } |