| /* |
| * 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 <subdev/bios.h> |
| #include <subdev/bios/dcb.h> |
| #include <subdev/bios/conn.h> |
| |
| u32 |
| nvbios_connTe(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) |
| { |
| u32 dcb = dcb_table(bios, ver, hdr, cnt, len); |
| if (dcb && *ver >= 0x30 && *hdr >= 0x16) { |
| u32 data = nvbios_rd16(bios, dcb + 0x14); |
| if (data) { |
| *ver = nvbios_rd08(bios, data + 0); |
| *hdr = nvbios_rd08(bios, data + 1); |
| *cnt = nvbios_rd08(bios, data + 2); |
| *len = nvbios_rd08(bios, data + 3); |
| return data; |
| } |
| } |
| return 0x00000000; |
| } |
| |
| u32 |
| nvbios_connTp(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, |
| struct nvbios_connT *info) |
| { |
| u32 data = nvbios_connTe(bios, ver, hdr, cnt, len); |
| memset(info, 0x00, sizeof(*info)); |
| switch (!!data * *ver) { |
| case 0x30: |
| case 0x40: |
| return data; |
| default: |
| break; |
| } |
| return 0x00000000; |
| } |
| |
| u32 |
| nvbios_connEe(struct nvkm_bios *bios, u8 idx, u8 *ver, u8 *len) |
| { |
| u8 hdr, cnt; |
| u32 data = nvbios_connTe(bios, ver, &hdr, &cnt, len); |
| if (data && idx < cnt) |
| return data + hdr + (idx * *len); |
| return 0x00000000; |
| } |
| |
| u32 |
| nvbios_connEp(struct nvkm_bios *bios, u8 idx, u8 *ver, u8 *len, |
| struct nvbios_connE *info) |
| { |
| u32 data = nvbios_connEe(bios, idx, ver, len); |
| memset(info, 0x00, sizeof(*info)); |
| switch (!!data * *ver) { |
| case 0x30: |
| case 0x40: |
| info->type = nvbios_rd08(bios, data + 0x00); |
| info->location = nvbios_rd08(bios, data + 0x01) & 0x0f; |
| info->hpd = (nvbios_rd08(bios, data + 0x01) & 0x30) >> 4; |
| info->dp = (nvbios_rd08(bios, data + 0x01) & 0xc0) >> 6; |
| if (*len < 4) |
| return data; |
| info->hpd |= (nvbios_rd08(bios, data + 0x02) & 0x03) << 2; |
| info->dp |= nvbios_rd08(bios, data + 0x02) & 0x0c; |
| info->di = (nvbios_rd08(bios, data + 0x02) & 0xf0) >> 4; |
| info->hpd |= (nvbios_rd08(bios, data + 0x03) & 0x07) << 4; |
| info->sr = (nvbios_rd08(bios, data + 0x03) & 0x08) >> 3; |
| info->lcdid = (nvbios_rd08(bios, data + 0x03) & 0x70) >> 4; |
| return data; |
| default: |
| break; |
| } |
| return 0x00000000; |
| } |
