| 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 | |