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
27static inline u32
28gf119_sor_soff(struct nvkm_output_dp *outp)
29{
30	return (ffs(outp->base.info.or) - 1) * 0x800;
31}
32
33static inline u32
34gf119_sor_loff(struct nvkm_output_dp *outp)
35{
36	return gf119_sor_soff(outp) + !(outp->base.info.sorconf.link & 1) * 0x80;
37}
38
39static int
40gf119_sor_dp_pattern(struct nvkm_output_dp *outp, int pattern)
41{
42	struct nvkm_device *device = outp->base.disp->engine.subdev.device;
43	const u32 loff = gf119_sor_loff(outp);
44	nvkm_mask(device, 0x61c110 + loff, 0x0f0f0f0f, 0x01010101 * pattern);
45	return 0;
46}
47
48int
49gf119_sor_dp_lnk_ctl(struct nvkm_output_dp *outp, int nr, int bw, bool ef)
50{
51	struct nvkm_device *device = outp->base.disp->engine.subdev.device;
52	const u32 soff = gf119_sor_soff(outp);
53	const u32 loff = gf119_sor_loff(outp);
54	u32 dpctrl = 0x00000000;
55	u32 clksor = 0x00000000;
56
57	clksor |= bw << 18;
58	dpctrl |= ((1 << nr) - 1) << 16;
59	if (ef)
60		dpctrl |= 0x00004000;
61
62	nvkm_mask(device, 0x612300 + soff, 0x007c0000, clksor);
63	nvkm_mask(device, 0x61c10c + loff, 0x001f4000, dpctrl);
64	return 0;
65}
66
67static int
68gf119_sor_dp_drv_ctl(struct nvkm_output_dp *outp,
69		     int ln, int vs, int pe, int pc)
70{
71	struct nvkm_device *device = outp->base.disp->engine.subdev.device;
72	struct nvkm_bios *bios = device->bios;
73	const u32 shift = g94_sor_dp_lane_map(device, ln);
74	const u32 loff = gf119_sor_loff(outp);
75	u32 addr, data[4];
76	u8  ver, hdr, cnt, len;
77	struct nvbios_dpout info;
78	struct nvbios_dpcfg ocfg;
79
80	addr = nvbios_dpout_match(bios, outp->base.info.hasht,
81					outp->base.info.hashm,
82				  &ver, &hdr, &cnt, &len, &info);
83	if (!addr)
84		return -ENODEV;
85
86	addr = nvbios_dpcfg_match(bios, addr, pc, vs, pe,
87				  &ver, &hdr, &cnt, &len, &ocfg);
88	if (!addr)
89		return -EINVAL;
90
91	data[0] = nvkm_rd32(device, 0x61c118 + loff) & ~(0x000000ff << shift);
92	data[1] = nvkm_rd32(device, 0x61c120 + loff) & ~(0x000000ff << shift);
93	data[2] = nvkm_rd32(device, 0x61c130 + loff);
94	if ((data[2] & 0x0000ff00) < (ocfg.tx_pu << 8) || ln == 0)
95		data[2] = (data[2] & ~0x0000ff00) | (ocfg.tx_pu << 8);
96	nvkm_wr32(device, 0x61c118 + loff, data[0] | (ocfg.dc << shift));
97	nvkm_wr32(device, 0x61c120 + loff, data[1] | (ocfg.pe << shift));
98	nvkm_wr32(device, 0x61c130 + loff, data[2]);
99	data[3] = nvkm_rd32(device, 0x61c13c + loff) & ~(0x000000ff << shift);
100	nvkm_wr32(device, 0x61c13c + loff, data[3] | (ocfg.pc << shift));
101	return 0;
102}
103
104static const struct nvkm_output_dp_func
105gf119_sor_dp_func = {
106	.pattern = gf119_sor_dp_pattern,
107	.lnk_pwr = g94_sor_dp_lnk_pwr,
108	.lnk_ctl = gf119_sor_dp_lnk_ctl,
109	.drv_ctl = gf119_sor_dp_drv_ctl,
110};
111
112int
113gf119_sor_dp_new(struct nvkm_disp *disp, int index,
114		 struct dcb_output *dcbE, struct nvkm_output **poutp)
115{
116	return nvkm_output_dp_new_(&gf119_sor_dp_func, disp, index, dcbE, poutp);
117}
118