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 "priv.h"
25
26static void
27gk104_gpio_intr_stat(struct nvkm_gpio *gpio, u32 *hi, u32 *lo)
28{
29	u32 intr0 = nv_rd32(gpio, 0x00dc00);
30	u32 intr1 = nv_rd32(gpio, 0x00dc80);
31	u32 stat0 = nv_rd32(gpio, 0x00dc08) & intr0;
32	u32 stat1 = nv_rd32(gpio, 0x00dc88) & intr1;
33	*lo = (stat1 & 0xffff0000) | (stat0 >> 16);
34	*hi = (stat1 << 16) | (stat0 & 0x0000ffff);
35	nv_wr32(gpio, 0x00dc00, intr0);
36	nv_wr32(gpio, 0x00dc80, intr1);
37}
38
39void
40gk104_gpio_intr_mask(struct nvkm_gpio *gpio, u32 type, u32 mask, u32 data)
41{
42	u32 inte0 = nv_rd32(gpio, 0x00dc08);
43	u32 inte1 = nv_rd32(gpio, 0x00dc88);
44	if (type & NVKM_GPIO_LO)
45		inte0 = (inte0 & ~(mask << 16)) | (data << 16);
46	if (type & NVKM_GPIO_HI)
47		inte0 = (inte0 & ~(mask & 0xffff)) | (data & 0xffff);
48	mask >>= 16;
49	data >>= 16;
50	if (type & NVKM_GPIO_LO)
51		inte1 = (inte1 & ~(mask << 16)) | (data << 16);
52	if (type & NVKM_GPIO_HI)
53		inte1 = (inte1 & ~mask) | data;
54	nv_wr32(gpio, 0x00dc08, inte0);
55	nv_wr32(gpio, 0x00dc88, inte1);
56}
57
58struct nvkm_oclass *
59gk104_gpio_oclass = &(struct nvkm_gpio_impl) {
60	.base.handle = NV_SUBDEV(GPIO, 0xe0),
61	.base.ofuncs = &(struct nvkm_ofuncs) {
62		.ctor = _nvkm_gpio_ctor,
63		.dtor = _nvkm_gpio_dtor,
64		.init = _nvkm_gpio_init,
65		.fini = _nvkm_gpio_fini,
66	},
67	.lines = 32,
68	.intr_stat = gk104_gpio_intr_stat,
69	.intr_mask = gk104_gpio_intr_mask,
70	.drive = gf110_gpio_drive,
71	.sense = gf110_gpio_sense,
72	.reset = gf110_gpio_reset,
73}.base;
74