| /* |
| * 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 <core/os.h> |
| #include <core/class.h> |
| |
| #include <subdev/bios.h> |
| #include <subdev/bios/dcb.h> |
| #include <subdev/bios/dp.h> |
| #include <subdev/bios/init.h> |
| |
| #include "nv50.h" |
| |
| static inline u32 |
| nvd0_sor_dp_lane_map(struct nv50_disp_priv *priv, u8 lane) |
| { |
| static const u8 nvd0[] = { 16, 8, 0, 24 }; |
| return nvd0[lane]; |
| } |
| |
| int |
| nvd0_sor_dp_train(struct nv50_disp_priv *priv, int or, int link, |
| u16 type, u16 mask, u32 data, struct dcb_output *info) |
| { |
| const u32 loff = (or * 0x800) + (link * 0x80); |
| const u32 patt = (data & NV94_DISP_SOR_DP_TRAIN_PATTERN); |
| nv_mask(priv, 0x61c110 + loff, 0x0f0f0f0f, 0x01010101 * patt); |
| return 0; |
| } |
| |
| int |
| nvd0_sor_dp_lnkctl(struct nv50_disp_priv *priv, int or, int link, int head, |
| u16 type, u16 mask, u32 data, struct dcb_output *dcbo) |
| { |
| struct nouveau_bios *bios = nouveau_bios(priv); |
| const u32 loff = (or * 0x800) + (link * 0x80); |
| const u32 soff = (or * 0x800); |
| const u8 link_bw = (data & NV94_DISP_SOR_DP_LNKCTL_WIDTH) >> 8; |
| const u8 link_nr = (data & NV94_DISP_SOR_DP_LNKCTL_COUNT); |
| u32 dpctrl = 0x00000000; |
| u32 clksor = 0x00000000; |
| u32 outp, lane = 0; |
| u8 ver, hdr, cnt, len; |
| struct nvbios_dpout info; |
| int i; |
| |
| outp = nvbios_dpout_match(bios, type, mask, &ver, &hdr, &cnt, &len, &info); |
| if (outp && info.lnkcmp) { |
| struct nvbios_init init = { |
| .subdev = nv_subdev(priv), |
| .bios = bios, |
| .offset = 0x0000, |
| .outp = dcbo, |
| .crtc = head, |
| .execute = 1, |
| }; |
| |
| while (nv_ro08(bios, info.lnkcmp) < link_bw) |
| info.lnkcmp += 3; |
| init.offset = nv_ro16(bios, info.lnkcmp + 1); |
| |
| nvbios_exec(&init); |
| } |
| |
| clksor |= link_bw << 18; |
| dpctrl |= ((1 << link_nr) - 1) << 16; |
| if (data & NV94_DISP_SOR_DP_LNKCTL_FRAME_ENH) |
| dpctrl |= 0x00004000; |
| |
| for (i = 0; i < link_nr; i++) |
| lane |= 1 << (nvd0_sor_dp_lane_map(priv, i) >> 3); |
| |
| nv_mask(priv, 0x612300 + soff, 0x007c0000, clksor); |
| nv_mask(priv, 0x61c10c + loff, 0x001f4000, dpctrl); |
| nv_mask(priv, 0x61c130 + loff, 0x0000000f, lane); |
| return 0; |
| } |
| |
| int |
| nvd0_sor_dp_drvctl(struct nv50_disp_priv *priv, int or, int link, int lane, |
| u16 type, u16 mask, u32 data, struct dcb_output *dcbo) |
| { |
| struct nouveau_bios *bios = nouveau_bios(priv); |
| const u32 loff = (or * 0x800) + (link * 0x80); |
| const u8 swing = (data & NV94_DISP_SOR_DP_DRVCTL_VS) >> 8; |
| const u8 preem = (data & NV94_DISP_SOR_DP_DRVCTL_PE); |
| u32 addr, shift = nvd0_sor_dp_lane_map(priv, lane); |
| u8 ver, hdr, cnt, len; |
| struct nvbios_dpout outp; |
| struct nvbios_dpcfg ocfg; |
| |
| addr = nvbios_dpout_match(bios, type, mask, &ver, &hdr, &cnt, &len, &outp); |
| if (!addr) |
| return -ENODEV; |
| |
| addr = nvbios_dpcfg_match(bios, addr, 0, swing, preem, &ver, &hdr, &cnt, &len, &ocfg); |
| if (!addr) |
| return -EINVAL; |
| |
| nv_mask(priv, 0x61c118 + loff, 0x000000ff << shift, ocfg.drv << shift); |
| nv_mask(priv, 0x61c120 + loff, 0x000000ff << shift, ocfg.pre << shift); |
| nv_mask(priv, 0x61c130 + loff, 0x0000ff00, ocfg.unk << 8); |
| nv_mask(priv, 0x61c13c + loff, 0x00000000, 0x00000000); |
| return 0; |
| } |