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