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
26void
27gk104_aux_stat(struct nvkm_i2c *i2c, u32 *hi, u32 *lo, u32 *rq, u32 *tx)
28{
29	u32 intr = nv_rd32(i2c, 0x00dc60);
30	u32 stat = nv_rd32(i2c, 0x00dc68) & intr, i;
31	for (i = 0, *hi = *lo = *rq = *tx = 0; i < 8; i++) {
32		if ((stat & (1 << (i * 4)))) *hi |= 1 << i;
33		if ((stat & (2 << (i * 4)))) *lo |= 1 << i;
34		if ((stat & (4 << (i * 4)))) *rq |= 1 << i;
35		if ((stat & (8 << (i * 4)))) *tx |= 1 << i;
36	}
37	nv_wr32(i2c, 0x00dc60, intr);
38}
39
40void
41gk104_aux_mask(struct nvkm_i2c *i2c, u32 type, u32 mask, u32 data)
42{
43	u32 temp = nv_rd32(i2c, 0x00dc68), i;
44	for (i = 0; i < 8; i++) {
45		if (mask & (1 << i)) {
46			if (!(data & (1 << i))) {
47				temp &= ~(type << (i * 4));
48				continue;
49			}
50			temp |= type << (i * 4);
51		}
52	}
53	nv_wr32(i2c, 0x00dc68, temp);
54}
55
56struct nvkm_oclass *
57gk104_i2c_oclass = &(struct nvkm_i2c_impl) {
58	.base.handle = NV_SUBDEV(I2C, 0xe0),
59	.base.ofuncs = &(struct nvkm_ofuncs) {
60		.ctor = _nvkm_i2c_ctor,
61		.dtor = _nvkm_i2c_dtor,
62		.init = _nvkm_i2c_init,
63		.fini = _nvkm_i2c_fini,
64	},
65	.sclass = gf110_i2c_sclass,
66	.pad_x = &nv04_i2c_pad_oclass,
67	.pad_s = &g94_i2c_pad_oclass,
68	.aux = 4,
69	.aux_stat = gk104_aux_stat,
70	.aux_mask = gk104_aux_mask,
71}.base;
72