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 #include <subdev/bios.h> 25 #include <subdev/bios/pcir.h> 26 27 u32 28 nvbios_pcirTe(struct nvkm_bios *bios, u32 base, u8 *ver, u16 *hdr) 29 { 30 u32 data = nvbios_rd16(bios, base + 0x18); 31 if (data) { 32 data += base; 33 switch (nvbios_rd32(bios, data + 0x00)) { 34 case 0x52494350: /* PCIR */ 35 case 0x53494752: /* RGIS */ 36 case 0x5344504e: /* NPDS */ 37 *hdr = nvbios_rd16(bios, data + 0x0a); 38 *ver = nvbios_rd08(bios, data + 0x0c); 39 break; 40 default: 41 nvkm_debug(&bios->subdev, 42 "%08x: PCIR signature (%08x) unknown\n", 43 data, nvbios_rd32(bios, data + 0x00)); 44 data = 0; 45 break; 46 } 47 } 48 return data; 49 } 50 51 u32 52 nvbios_pcirTp(struct nvkm_bios *bios, u32 base, u8 *ver, u16 *hdr, 53 struct nvbios_pcirT *info) 54 { 55 u32 data = nvbios_pcirTe(bios, base, ver, hdr); 56 memset(info, 0x00, sizeof(*info)); 57 if (data) { 58 info->vendor_id = nvbios_rd16(bios, data + 0x04); 59 info->device_id = nvbios_rd16(bios, data + 0x06); 60 info->class_code[0] = nvbios_rd08(bios, data + 0x0d); 61 info->class_code[1] = nvbios_rd08(bios, data + 0x0e); 62 info->class_code[2] = nvbios_rd08(bios, data + 0x0f); 63 info->image_size = nvbios_rd16(bios, data + 0x10) * 512; 64 info->image_rev = nvbios_rd16(bios, data + 0x12); 65 info->image_type = nvbios_rd08(bios, data + 0x14); 66 info->last = nvbios_rd08(bios, data + 0x15) & 0x80; 67 } 68 return data; 69 } 70