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 } 62