1 | /* $NetBSD: nouveau_subdev_therm_nva3.c,v 1.1.1.1 2014/08/06 12:36:32 riastradh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright 2012 Red Hat Inc. |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a |
7 | * copy of this software and associated documentation files (the "Software"), |
8 | * to deal in the Software without restriction, including without limitation |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
10 | * and/or sell copies of the Software, and to permit persons to whom the |
11 | * Software is furnished to do so, subject to the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be included in |
14 | * all copies or substantial portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
22 | * OTHER DEALINGS IN THE SOFTWARE. |
23 | * |
24 | * Authors: Ben Skeggs |
25 | */ |
26 | |
27 | #include <sys/cdefs.h> |
28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_therm_nva3.c,v 1.1.1.1 2014/08/06 12:36:32 riastradh Exp $" ); |
29 | |
30 | #include <subdev/gpio.h> |
31 | |
32 | #include "priv.h" |
33 | |
34 | struct nva3_therm_priv { |
35 | struct nouveau_therm_priv base; |
36 | }; |
37 | |
38 | int |
39 | nva3_therm_fan_sense(struct nouveau_therm *therm) |
40 | { |
41 | u32 tach = nv_rd32(therm, 0x00e728) & 0x0000ffff; |
42 | u32 ctrl = nv_rd32(therm, 0x00e720); |
43 | if (ctrl & 0x00000001) |
44 | return tach * 60; |
45 | return -ENODEV; |
46 | } |
47 | |
48 | static int |
49 | nva3_therm_init(struct nouveau_object *object) |
50 | { |
51 | struct nva3_therm_priv *priv = (void *)object; |
52 | struct dcb_gpio_func *tach = &priv->base.fan->tach; |
53 | int ret; |
54 | |
55 | ret = nouveau_therm_init(&priv->base.base); |
56 | if (ret) |
57 | return ret; |
58 | |
59 | /* enable fan tach, count revolutions per-second */ |
60 | nv_mask(priv, 0x00e720, 0x00000003, 0x00000002); |
61 | if (tach->func != DCB_GPIO_UNUSED) { |
62 | nv_wr32(priv, 0x00e724, nv_device(priv)->crystal * 1000); |
63 | nv_mask(priv, 0x00e720, 0x001f0000, tach->line << 16); |
64 | nv_mask(priv, 0x00e720, 0x00000001, 0x00000001); |
65 | } |
66 | nv_mask(priv, 0x00e720, 0x00000002, 0x00000000); |
67 | |
68 | return 0; |
69 | } |
70 | |
71 | static int |
72 | nva3_therm_ctor(struct nouveau_object *parent, |
73 | struct nouveau_object *engine, |
74 | struct nouveau_oclass *oclass, void *data, u32 size, |
75 | struct nouveau_object **pobject) |
76 | { |
77 | struct nva3_therm_priv *priv; |
78 | int ret; |
79 | |
80 | ret = nouveau_therm_create(parent, engine, oclass, &priv); |
81 | *pobject = nv_object(priv); |
82 | if (ret) |
83 | return ret; |
84 | |
85 | priv->base.base.pwm_ctrl = nv50_fan_pwm_ctrl; |
86 | priv->base.base.pwm_get = nv50_fan_pwm_get; |
87 | priv->base.base.pwm_set = nv50_fan_pwm_set; |
88 | priv->base.base.pwm_clock = nv50_fan_pwm_clock; |
89 | priv->base.base.temp_get = nv84_temp_get; |
90 | priv->base.base.fan_sense = nva3_therm_fan_sense; |
91 | priv->base.sensor.program_alarms = nouveau_therm_program_alarms_polling; |
92 | return nouveau_therm_preinit(&priv->base.base); |
93 | } |
94 | |
95 | struct nouveau_oclass |
96 | nva3_therm_oclass = { |
97 | .handle = NV_SUBDEV(THERM, 0xa3), |
98 | .ofuncs = &(struct nouveau_ofuncs) { |
99 | .ctor = nva3_therm_ctor, |
100 | .dtor = _nouveau_therm_dtor, |
101 | .init = nva3_therm_init, |
102 | .fini = nv84_therm_fini, |
103 | }, |
104 | }; |
105 | |