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
gm204_sor_soff(struct nvkm_output_dp * outp)30 gm204_sor_soff(struct nvkm_output_dp *outp)
31 {
32 return (ffs(outp->base.info.or) - 1) * 0x800;
33 }
34
35 static inline u32
gm204_sor_loff(struct nvkm_output_dp * outp)36 gm204_sor_loff(struct nvkm_output_dp *outp)
37 {
38 return gm204_sor_soff(outp) + !(outp->base.info.sorconf.link & 1) * 0x80;
39 }
40
41 void
gm204_sor_magic(struct nvkm_output * outp)42 gm204_sor_magic(struct nvkm_output *outp)
43 {
44 struct nvkm_device *device = outp->disp->engine.subdev.device;
45 const u32 soff = outp->or * 0x100;
46 const u32 data = outp->or + 1;
47 if (outp->info.sorconf.link & 1)
48 nvkm_mask(device, 0x612308 + soff, 0x0000001f, 0x00000000 | data);
49 if (outp->info.sorconf.link & 2)
50 nvkm_mask(device, 0x612388 + soff, 0x0000001f, 0x00000010 | data);
51 }
52
53 static inline u32
gm204_sor_dp_lane_map(struct nvkm_device * device,u8 lane)54 gm204_sor_dp_lane_map(struct nvkm_device *device, u8 lane)
55 {
56 return lane * 0x08;
57 }
58
59 static int
gm204_sor_dp_pattern(struct nvkm_output_dp * outp,int pattern)60 gm204_sor_dp_pattern(struct nvkm_output_dp *outp, int pattern)
61 {
62 struct nvkm_device *device = outp->base.disp->engine.subdev.device;
63 const u32 soff = gm204_sor_soff(outp);
64 const u32 data = 0x01010101 * pattern;
65 if (outp->base.info.sorconf.link & 1)
66 nvkm_mask(device, 0x61c110 + soff, 0x0f0f0f0f, data);
67 else
68 nvkm_mask(device, 0x61c12c + soff, 0x0f0f0f0f, data);
69 return 0;
70 }
71
72 static int
gm204_sor_dp_lnk_pwr(struct nvkm_output_dp * outp,int nr)73 gm204_sor_dp_lnk_pwr(struct nvkm_output_dp *outp, int nr)
74 {
75 struct nvkm_device *device = outp->base.disp->engine.subdev.device;
76 const u32 soff = gm204_sor_soff(outp);
77 const u32 loff = gm204_sor_loff(outp);
78 u32 mask = 0, i;
79
80 for (i = 0; i < nr; i++)
81 mask |= 1 << (gm204_sor_dp_lane_map(device, i) >> 3);
82
83 nvkm_mask(device, 0x61c130 + loff, 0x0000000f, mask);
84 nvkm_mask(device, 0x61c034 + soff, 0x80000000, 0x80000000);
85 nvkm_msec(device, 2000,
86 if (!(nvkm_rd32(device, 0x61c034 + soff) & 0x80000000))
87 break;
88 );
89 return 0;
90 }
91
92 static int
gm204_sor_dp_drv_ctl(struct nvkm_output_dp * outp,int ln,int vs,int pe,int pc)93 gm204_sor_dp_drv_ctl(struct nvkm_output_dp *outp,
94 int ln, int vs, int pe, int pc)
95 {
96 struct nvkm_device *device = outp->base.disp->engine.subdev.device;
97 struct nvkm_bios *bios = device->bios;
98 const u32 shift = gm204_sor_dp_lane_map(device, ln);
99 const u32 loff = gm204_sor_loff(outp);
100 u32 addr, data[4];
101 u8 ver, hdr, cnt, len;
102 struct nvbios_dpout info;
103 struct nvbios_dpcfg ocfg;
104
105 addr = nvbios_dpout_match(bios, outp->base.info.hasht,
106 outp->base.info.hashm,
107 &ver, &hdr, &cnt, &len, &info);
108 if (!addr)
109 return -ENODEV;
110
111 addr = nvbios_dpcfg_match(bios, addr, pc, vs, pe,
112 &ver, &hdr, &cnt, &len, &ocfg);
113 if (!addr)
114 return -EINVAL;
115 ocfg.tx_pu &= 0x0f;
116
117 data[0] = nvkm_rd32(device, 0x61c118 + loff) & ~(0x000000ff << shift);
118 data[1] = nvkm_rd32(device, 0x61c120 + loff) & ~(0x000000ff << shift);
119 data[2] = nvkm_rd32(device, 0x61c130 + loff);
120 if ((data[2] & 0x00000f00) < (ocfg.tx_pu << 8) || ln == 0)
121 data[2] = (data[2] & ~0x00000f00) | (ocfg.tx_pu << 8);
122 nvkm_wr32(device, 0x61c118 + loff, data[0] | (ocfg.dc << shift));
123 nvkm_wr32(device, 0x61c120 + loff, data[1] | (ocfg.pe << shift));
124 nvkm_wr32(device, 0x61c130 + loff, data[2]);
125 data[3] = nvkm_rd32(device, 0x61c13c + loff) & ~(0x000000ff << shift);
126 nvkm_wr32(device, 0x61c13c + loff, data[3] | (ocfg.pc << shift));
127 return 0;
128 }
129
130 static const struct nvkm_output_dp_func
131 gm204_sor_dp_func = {
132 .pattern = gm204_sor_dp_pattern,
133 .lnk_pwr = gm204_sor_dp_lnk_pwr,
134 .lnk_ctl = gf119_sor_dp_lnk_ctl,
135 .drv_ctl = gm204_sor_dp_drv_ctl,
136 };
137
138 int
gm204_sor_dp_new(struct nvkm_disp * disp,int index,struct dcb_output * dcbE,struct nvkm_output ** poutp)139 gm204_sor_dp_new(struct nvkm_disp *disp, int index, struct dcb_output *dcbE,
140 struct nvkm_output **poutp)
141 {
142 return nvkm_output_dp_new_(&gm204_sor_dp_func, disp, index, dcbE, poutp);
143 }
144