1 /* 2 * Copyright 2014 Martin Peres 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: Martin Peres 23 */ 24 #include "priv.h" 25 26 #include <core/device.h> 27 28 struct gm107_therm_priv { 29 struct nvkm_therm_priv base; 30 }; 31 32 static int 33 gm107_fan_pwm_ctrl(struct nvkm_therm *therm, int line, bool enable) 34 { 35 /* nothing to do, it seems hardwired */ 36 return 0; 37 } 38 39 static int 40 gm107_fan_pwm_get(struct nvkm_therm *therm, int line, u32 *divs, u32 *duty) 41 { 42 *divs = nv_rd32(therm, 0x10eb20) & 0x1fff; 43 *duty = nv_rd32(therm, 0x10eb24) & 0x1fff; 44 return 0; 45 } 46 47 static int 48 gm107_fan_pwm_set(struct nvkm_therm *therm, int line, u32 divs, u32 duty) 49 { 50 nv_mask(therm, 0x10eb10, 0x1fff, divs); /* keep the high bits */ 51 nv_wr32(therm, 0x10eb14, duty | 0x80000000); 52 return 0; 53 } 54 55 static int 56 gm107_fan_pwm_clock(struct nvkm_therm *therm, int line) 57 { 58 return nv_device(therm)->crystal * 1000; 59 } 60 61 static int 62 gm107_therm_ctor(struct nvkm_object *parent, struct nvkm_object *engine, 63 struct nvkm_oclass *oclass, void *data, u32 size, 64 struct nvkm_object **pobject) 65 { 66 struct gm107_therm_priv *priv; 67 int ret; 68 69 ret = nvkm_therm_create(parent, engine, oclass, &priv); 70 *pobject = nv_object(priv); 71 if (ret) 72 return ret; 73 74 priv->base.base.pwm_ctrl = gm107_fan_pwm_ctrl; 75 priv->base.base.pwm_get = gm107_fan_pwm_get; 76 priv->base.base.pwm_set = gm107_fan_pwm_set; 77 priv->base.base.pwm_clock = gm107_fan_pwm_clock; 78 priv->base.base.temp_get = g84_temp_get; 79 priv->base.base.fan_sense = gt215_therm_fan_sense; 80 priv->base.sensor.program_alarms = nvkm_therm_program_alarms_polling; 81 return nvkm_therm_preinit(&priv->base.base); 82 } 83 84 struct nvkm_oclass 85 gm107_therm_oclass = { 86 .handle = NV_SUBDEV(THERM, 0x117), 87 .ofuncs = &(struct nvkm_ofuncs) { 88 .ctor = gm107_therm_ctor, 89 .dtor = _nvkm_therm_dtor, 90 .init = gf110_therm_init, 91 .fini = g84_therm_fini, 92 }, 93 }; 94