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
25 #include <subdev/gpio.h>
26
27 #include "priv.h"
28
29 struct nva3_therm_priv {
30 struct nouveau_therm_priv base;
31 };
32
33 int
nva3_therm_fan_sense(struct nouveau_therm * therm)34 nva3_therm_fan_sense(struct nouveau_therm *therm)
35 {
36 u32 tach = nv_rd32(therm, 0x00e728) & 0x0000ffff;
37 u32 ctrl = nv_rd32(therm, 0x00e720);
38 if (ctrl & 0x00000001)
39 return tach * 60 / 2;
40 return -ENODEV;
41 }
42
43 static int
nva3_therm_init(struct nouveau_object * object)44 nva3_therm_init(struct nouveau_object *object)
45 {
46 struct nva3_therm_priv *priv = (void *)object;
47 struct dcb_gpio_func *tach = &priv->base.fan->tach;
48 int ret;
49
50 ret = nouveau_therm_init(&priv->base.base);
51 if (ret)
52 return ret;
53
54 nv84_sensor_setup(&priv->base.base);
55
56 /* enable fan tach, count revolutions per-second */
57 nv_mask(priv, 0x00e720, 0x00000003, 0x00000002);
58 if (tach->func != DCB_GPIO_UNUSED) {
59 nv_wr32(priv, 0x00e724, nv_device(priv)->crystal * 1000);
60 nv_mask(priv, 0x00e720, 0x001f0000, tach->line << 16);
61 nv_mask(priv, 0x00e720, 0x00000001, 0x00000001);
62 }
63 nv_mask(priv, 0x00e720, 0x00000002, 0x00000000);
64
65 return 0;
66 }
67
68 static int
nva3_therm_ctor(struct nouveau_object * parent,struct nouveau_object * engine,struct nouveau_oclass * oclass,void * data,u32 size,struct nouveau_object ** pobject)69 nva3_therm_ctor(struct nouveau_object *parent,
70 struct nouveau_object *engine,
71 struct nouveau_oclass *oclass, void *data, u32 size,
72 struct nouveau_object **pobject)
73 {
74 struct nva3_therm_priv *priv;
75 int ret;
76
77 ret = nouveau_therm_create(parent, engine, oclass, &priv);
78 *pobject = nv_object(priv);
79 if (ret)
80 return ret;
81
82 priv->base.base.pwm_ctrl = nv50_fan_pwm_ctrl;
83 priv->base.base.pwm_get = nv50_fan_pwm_get;
84 priv->base.base.pwm_set = nv50_fan_pwm_set;
85 priv->base.base.pwm_clock = nv50_fan_pwm_clock;
86 priv->base.base.temp_get = nv84_temp_get;
87 priv->base.base.fan_sense = nva3_therm_fan_sense;
88 priv->base.sensor.program_alarms = nouveau_therm_program_alarms_polling;
89 return nouveau_therm_preinit(&priv->base.base);
90 }
91
92 struct nouveau_oclass
93 nva3_therm_oclass = {
94 .handle = NV_SUBDEV(THERM, 0xa3),
95 .ofuncs = &(struct nouveau_ofuncs) {
96 .ctor = nva3_therm_ctor,
97 .dtor = _nouveau_therm_dtor,
98 .init = nva3_therm_init,
99 .fini = nv84_therm_fini,
100 },
101 };
102