1 /*
2 * Copyright 2012 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 */
24 #include "nv50.h"
25 #include "outpdp.h"
26
27 #include <subdev/timer.h>
28
29 static inline u32
g94_sor_soff(struct nvkm_output_dp * outp)30 g94_sor_soff(struct nvkm_output_dp *outp)
31 {
32 return (ffs(outp->base.info.or) - 1) * 0x800;
33 }
34
35 static inline u32
g94_sor_loff(struct nvkm_output_dp * outp)36 g94_sor_loff(struct nvkm_output_dp *outp)
37 {
38 return g94_sor_soff(outp) + !(outp->base.info.sorconf.link & 1) * 0x80;
39 }
40
41 /*******************************************************************************
42 * TMDS/LVDS
43 ******************************************************************************/
44 static const struct nvkm_output_func
45 g94_sor_output_func = {
46 };
47
48 int
g94_sor_output_new(struct nvkm_disp * disp,int index,struct dcb_output * dcbE,struct nvkm_output ** poutp)49 g94_sor_output_new(struct nvkm_disp *disp, int index,
50 struct dcb_output *dcbE, struct nvkm_output **poutp)
51 {
52 return nvkm_output_new_(&g94_sor_output_func, disp,
53 index, dcbE, poutp);
54 }
55
56 /*******************************************************************************
57 * DisplayPort
58 ******************************************************************************/
59 u32
g94_sor_dp_lane_map(struct nvkm_device * device,u8 lane)60 g94_sor_dp_lane_map(struct nvkm_device *device, u8 lane)
61 {
62 static const u8 gm100[] = { 0, 8, 16, 24 };
63 static const u8 mcp89[] = { 24, 16, 8, 0 }; /* thanks, apple.. */
64 static const u8 g94[] = { 16, 8, 0, 24 };
65 if (device->chipset >= 0x110)
66 return gm100[lane];
67 if (device->chipset == 0xaf)
68 return mcp89[lane];
69 return g94[lane];
70 }
71
72 static int
g94_sor_dp_pattern(struct nvkm_output_dp * outp,int pattern)73 g94_sor_dp_pattern(struct nvkm_output_dp *outp, int pattern)
74 {
75 struct nvkm_device *device = outp->base.disp->engine.subdev.device;
76 const u32 loff = g94_sor_loff(outp);
77 nvkm_mask(device, 0x61c10c + loff, 0x0f000000, pattern << 24);
78 return 0;
79 }
80
81 int
g94_sor_dp_lnk_pwr(struct nvkm_output_dp * outp,int nr)82 g94_sor_dp_lnk_pwr(struct nvkm_output_dp *outp, int nr)
83 {
84 struct nvkm_device *device = outp->base.disp->engine.subdev.device;
85 const u32 soff = g94_sor_soff(outp);
86 const u32 loff = g94_sor_loff(outp);
87 u32 mask = 0, i;
88
89 for (i = 0; i < nr; i++)
90 mask |= 1 << (g94_sor_dp_lane_map(device, i) >> 3);
91
92 nvkm_mask(device, 0x61c130 + loff, 0x0000000f, mask);
93 nvkm_mask(device, 0x61c034 + soff, 0x80000000, 0x80000000);
94 nvkm_msec(device, 2000,
95 if (!(nvkm_rd32(device, 0x61c034 + soff) & 0x80000000))
96 break;
97 );
98 return 0;
99 }
100
101 static int
g94_sor_dp_lnk_ctl(struct nvkm_output_dp * outp,int nr,int bw,bool ef)102 g94_sor_dp_lnk_ctl(struct nvkm_output_dp *outp, int nr, int bw, bool ef)
103 {
104 struct nvkm_device *device = outp->base.disp->engine.subdev.device;
105 const u32 soff = g94_sor_soff(outp);
106 const u32 loff = g94_sor_loff(outp);
107 u32 dpctrl = 0x00000000;
108 u32 clksor = 0x00000000;
109
110 dpctrl |= ((1 << nr) - 1) << 16;
111 if (ef)
112 dpctrl |= 0x00004000;
113 if (bw > 0x06)
114 clksor |= 0x00040000;
115
116 nvkm_mask(device, 0x614300 + soff, 0x000c0000, clksor);
117 nvkm_mask(device, 0x61c10c + loff, 0x001f4000, dpctrl);
118 return 0;
119 }
120
121 static int
g94_sor_dp_drv_ctl(struct nvkm_output_dp * outp,int ln,int vs,int pe,int pc)122 g94_sor_dp_drv_ctl(struct nvkm_output_dp *outp, int ln, int vs, int pe, int pc)
123 {
124 struct nvkm_device *device = outp->base.disp->engine.subdev.device;
125 struct nvkm_bios *bios = device->bios;
126 const u32 shift = g94_sor_dp_lane_map(device, ln);
127 const u32 loff = g94_sor_loff(outp);
128 u32 addr, data[3];
129 u8 ver, hdr, cnt, len;
130 struct nvbios_dpout info;
131 struct nvbios_dpcfg ocfg;
132
133 addr = nvbios_dpout_match(bios, outp->base.info.hasht,
134 outp->base.info.hashm,
135 &ver, &hdr, &cnt, &len, &info);
136 if (!addr)
137 return -ENODEV;
138
139 addr = nvbios_dpcfg_match(bios, addr, 0, vs, pe,
140 &ver, &hdr, &cnt, &len, &ocfg);
141 if (!addr)
142 return -EINVAL;
143
144 data[0] = nvkm_rd32(device, 0x61c118 + loff) & ~(0x000000ff << shift);
145 data[1] = nvkm_rd32(device, 0x61c120 + loff) & ~(0x000000ff << shift);
146 data[2] = nvkm_rd32(device, 0x61c130 + loff);
147 if ((data[2] & 0x0000ff00) < (ocfg.tx_pu << 8) || ln == 0)
148 data[2] = (data[2] & ~0x0000ff00) | (ocfg.tx_pu << 8);
149 nvkm_wr32(device, 0x61c118 + loff, data[0] | (ocfg.dc << shift));
150 nvkm_wr32(device, 0x61c120 + loff, data[1] | (ocfg.pe << shift));
151 nvkm_wr32(device, 0x61c130 + loff, data[2]);
152 return 0;
153 }
154
155 static const struct nvkm_output_dp_func
156 g94_sor_dp_func = {
157 .pattern = g94_sor_dp_pattern,
158 .lnk_pwr = g94_sor_dp_lnk_pwr,
159 .lnk_ctl = g94_sor_dp_lnk_ctl,
160 .drv_ctl = g94_sor_dp_drv_ctl,
161 };
162
163 int
g94_sor_dp_new(struct nvkm_disp * disp,int index,struct dcb_output * dcbE,struct nvkm_output ** poutp)164 g94_sor_dp_new(struct nvkm_disp *disp, int index, struct dcb_output *dcbE,
165 struct nvkm_output **poutp)
166 {
167 return nvkm_output_dp_new_(&g94_sor_dp_func, disp, index, dcbE, poutp);
168 }
169