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 struct nvkm_device *device = therm->subdev.device; 37 *divs = nvkm_rd32(device, 0x10eb20) & 0x1fff; 38 *duty = nvkm_rd32(device, 0x10eb24) & 0x1fff; 39 return 0; 40 } 41 42 static int 43 gm107_fan_pwm_set(struct nvkm_therm *therm, int line, u32 divs, u32 duty) 44 { 45 struct nvkm_device *device = therm->subdev.device; 46 nvkm_mask(device, 0x10eb10, 0x1fff, divs); /* keep the high bits */ 47 nvkm_wr32(device, 0x10eb14, duty | 0x80000000); 48 return 0; 49 } 50 51 static int 52 gm107_fan_pwm_clock(struct nvkm_therm *therm, int line) 53 { 54 return therm->subdev.device->crystal * 1000; 55 } 56 57 static const struct nvkm_therm_func 58 gm107_therm = { 59 .init = gf119_therm_init, 60 .fini = g84_therm_fini, 61 .pwm_ctrl = gm107_fan_pwm_ctrl, 62 .pwm_get = gm107_fan_pwm_get, 63 .pwm_set = gm107_fan_pwm_set, 64 .pwm_clock = gm107_fan_pwm_clock, 65 .temp_get = g84_temp_get, 66 .fan_sense = gt215_therm_fan_sense, 67 .program_alarms = nvkm_therm_program_alarms_polling, 68 }; 69 70 int 71 gm107_therm_new(struct nvkm_device *device, int index, 72 struct nvkm_therm **ptherm) 73 { 74 return nvkm_therm_new_(&gm107_therm, device, index, ptherm); 75 } 76