| /* |
| * 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 |
| nv94_sor_soff(struct dcb_output *outp) |
| { |
| return (ffs(outp->or) - 1) * 0x800; |
| } |
| |
| static inline u32 |
| nv94_sor_loff(struct dcb_output *outp) |
| { |
| return nv94_sor_soff(outp) + !(outp->sorconf.link & 1) * 0x80; |
| } |
| |
| static inline u32 |
| nv94_sor_dp_lane_map(struct nv50_disp_priv *priv, u8 lane) |
| { |
| static const u8 nvaf[] = { 24, 16, 8, 0 }; /* thanks, apple.. */ |
| static const u8 nv94[] = { 16, 8, 0, 24 }; |
| if (nv_device(priv)->chipset == 0xaf) |
| return nvaf[lane]; |
| return nv94[lane]; |
| } |
| |
| static int |
| nv94_sor_dp_pattern(struct nouveau_disp *disp, struct dcb_output *outp, |
| int head, int pattern) |
| { |
| struct nv50_disp_priv *priv = (void *)disp; |
| const u32 loff = nv94_sor_loff(outp); |
| nv_mask(priv, 0x61c10c + loff, 0x0f000000, pattern << 24); |
| return 0; |
| } |
| |
| static int |
| nv94_sor_dp_lnk_ctl(struct nouveau_disp *disp, struct dcb_output *outp, |
| int head, int link_nr, int link_bw, bool enh_frame) |
| { |
| struct nv50_disp_priv *priv = (void *)disp; |
| const u32 soff = nv94_sor_soff(outp); |
| const u32 loff = nv94_sor_loff(outp); |
| u32 dpctrl = 0x00000000; |
| u32 clksor = 0x00000000; |
| u32 lane = 0; |
| int i; |
| |
| dpctrl |= ((1 << link_nr) - 1) << 16; |
| if (enh_frame) |
| dpctrl |= 0x00004000; |
| if (link_bw > 0x06) |
| clksor |= 0x00040000; |
| |
| for (i = 0; i < link_nr; i++) |
| lane |= 1 << (nv94_sor_dp_lane_map(priv, i) >> 3); |
| |
| nv_mask(priv, 0x614300 + soff, 0x000c0000, clksor); |
| nv_mask(priv, 0x61c10c + loff, 0x001f4000, dpctrl); |
| nv_mask(priv, 0x61c130 + loff, 0x0000000f, lane); |
| return 0; |
| } |
| |
| static int |
| nv94_sor_dp_drv_ctl(struct nouveau_disp *disp, struct dcb_output *outp, |
| int head, int lane, int swing, int preem) |
| { |
| struct nouveau_bios *bios = nouveau_bios(disp); |
| struct nv50_disp_priv *priv = (void *)disp; |
| const u32 loff = nv94_sor_loff(outp); |
| u32 addr, shift = nv94_sor_dp_lane_map(priv, lane); |
| u8 ver, hdr, cnt, len; |
| struct nvbios_dpout info; |
| struct nvbios_dpcfg ocfg; |
| |
| addr = nvbios_dpout_match(bios, outp->hasht, outp->hashm, |
| &ver, &hdr, &cnt, &len, &info); |
| 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); |
| return 0; |
| } |
| |
| const struct nouveau_dp_func |
| nv94_sor_dp_func = { |
| .pattern = nv94_sor_dp_pattern, |
| .lnk_ctl = nv94_sor_dp_lnk_ctl, |
| .drv_ctl = nv94_sor_dp_drv_ctl, |
| }; |