70 lines
2.4 KiB
C
70 lines
2.4 KiB
C
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/*
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* Copyright 2014 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs <bskeggs@redhat.com>
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*/
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#include <subdev/bios.h>
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#include <subdev/bios/pcir.h>
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u32
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nvbios_pcirTe(struct nvkm_bios *bios, u32 base, u8 *ver, u16 *hdr)
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{
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u32 data = nvbios_rd16(bios, base + 0x18);
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if (data) {
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data += base;
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switch (nvbios_rd32(bios, data + 0x00)) {
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case 0x52494350: /* PCIR */
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case 0x53494752: /* RGIS */
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case 0x5344504e: /* NPDS */
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*hdr = nvbios_rd16(bios, data + 0x0a);
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*ver = nvbios_rd08(bios, data + 0x0c);
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break;
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default:
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nvkm_debug(&bios->subdev,
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"%08x: PCIR signature (%08x) unknown\n",
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data, nvbios_rd32(bios, data + 0x00));
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data = 0;
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break;
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}
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}
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return data;
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}
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u32
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nvbios_pcirTp(struct nvkm_bios *bios, u32 base, u8 *ver, u16 *hdr,
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struct nvbios_pcirT *info)
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{
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u32 data = nvbios_pcirTe(bios, base, ver, hdr);
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memset(info, 0x00, sizeof(*info));
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if (data) {
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info->vendor_id = nvbios_rd16(bios, data + 0x04);
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info->device_id = nvbios_rd16(bios, data + 0x06);
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info->class_code[0] = nvbios_rd08(bios, data + 0x0d);
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info->class_code[1] = nvbios_rd08(bios, data + 0x0e);
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info->class_code[2] = nvbios_rd08(bios, data + 0x0f);
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info->image_size = nvbios_rd16(bios, data + 0x10) * 512;
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info->image_rev = nvbios_rd16(bios, data + 0x12);
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info->image_type = nvbios_rd08(bios, data + 0x14);
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info->last = nvbios_rd08(bios, data + 0x15) & 0x80;
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}
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return data;
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}
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