/* * Copyright 2012 Red Hat Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: Ben Skeggs */ #include #include #include #include u16 dcb_conntab(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) { u16 dcb = dcb_table(bios, ver, hdr, cnt, len); if (dcb && *ver >= 0x30 && *hdr >= 0x16) { u16 data = nv_ro16(bios, dcb + 0x14); if (data) { *ver = nv_ro08(bios, data + 0); *hdr = nv_ro08(bios, data + 1); *cnt = nv_ro08(bios, data + 2); *len = nv_ro08(bios, data + 3); return data; } } return 0x0000; } u16 dcb_conn(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len) { u8 hdr, cnt; u16 data = dcb_conntab(bios, ver, &hdr, &cnt, len); if (data && idx < cnt) return data + hdr + (idx * *len); return 0x0000; }