| /* |
| * Copyright 2012 Red Hat Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: Ben Skeggs |
| * Martin Peres |
| */ |
| |
| #include "priv.h" |
| |
| static int |
| nv40_sensor_setup(struct nouveau_therm *therm) |
| { |
| struct nouveau_device *device = nv_device(therm); |
| |
| /* enable ADC readout and disable the ALARM threshold */ |
| if (device->chipset >= 0x46) { |
| nv_mask(therm, 0x15b8, 0x80000000, 0); |
| nv_wr32(therm, 0x15b0, 0x80003fff); |
| return nv_rd32(therm, 0x15b4) & 0x3fff; |
| } else { |
| nv_wr32(therm, 0x15b0, 0xff); |
| return nv_rd32(therm, 0x15b4) & 0xff; |
| } |
| } |
| |
| static int |
| nv40_temp_get(struct nouveau_therm *therm) |
| { |
| struct nouveau_therm_priv *priv = (void *)therm; |
| struct nouveau_device *device = nv_device(therm); |
| struct nvbios_therm_sensor *sensor = &priv->bios_sensor; |
| int core_temp; |
| |
| if (device->chipset >= 0x46) { |
| nv_wr32(therm, 0x15b0, 0x80003fff); |
| core_temp = nv_rd32(therm, 0x15b4) & 0x3fff; |
| } else { |
| nv_wr32(therm, 0x15b0, 0xff); |
| core_temp = nv_rd32(therm, 0x15b4) & 0xff; |
| } |
| |
| /* Setup the sensor if the temperature is 0 */ |
| if (core_temp == 0) |
| core_temp = nv40_sensor_setup(therm); |
| |
| if (sensor->slope_div == 0) |
| sensor->slope_div = 1; |
| if (sensor->offset_den == 0) |
| sensor->offset_den = 1; |
| if (sensor->slope_mult < 1) |
| sensor->slope_mult = 1; |
| |
| core_temp = core_temp * sensor->slope_mult / sensor->slope_div; |
| core_temp = core_temp + sensor->offset_num / sensor->offset_den; |
| core_temp = core_temp + sensor->offset_constant - 8; |
| |
| return core_temp; |
| } |
| |
| int |
| nv40_fan_pwm_get(struct nouveau_therm *therm, int line, u32 *divs, u32 *duty) |
| { |
| if (line == 2) { |
| u32 reg = nv_rd32(therm, 0x0010f0); |
| if (reg & 0x80000000) { |
| *duty = (reg & 0x7fff0000) >> 16; |
| *divs = (reg & 0x00007fff); |
| return 0; |
| } |
| } else |
| if (line == 9) { |
| u32 reg = nv_rd32(therm, 0x0015f4); |
| if (reg & 0x80000000) { |
| *divs = nv_rd32(therm, 0x0015f8); |
| *duty = (reg & 0x7fffffff); |
| return 0; |
| } |
| } else { |
| nv_error(therm, "unknown pwm ctrl for gpio %d\n", line); |
| return -ENODEV; |
| } |
| |
| return -EINVAL; |
| } |
| |
| int |
| nv40_fan_pwm_set(struct nouveau_therm *therm, int line, u32 divs, u32 duty) |
| { |
| if (line == 2) { |
| nv_wr32(therm, 0x0010f0, 0x80000000 | (duty << 16) | divs); |
| } else |
| if (line == 9) { |
| nv_wr32(therm, 0x0015f8, divs); |
| nv_wr32(therm, 0x0015f4, duty | 0x80000000); |
| } else { |
| nv_error(therm, "unknown pwm ctrl for gpio %d\n", line); |
| return -ENODEV; |
| } |
| |
| return 0; |
| } |
| |
| static int |
| nv40_therm_ctor(struct nouveau_object *parent, |
| struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, void *data, u32 size, |
| struct nouveau_object **pobject) |
| { |
| struct nouveau_therm_priv *priv; |
| struct nouveau_therm *therm; |
| int ret; |
| |
| ret = nouveau_therm_create(parent, engine, oclass, &priv); |
| *pobject = nv_object(priv); |
| therm = (void *) priv; |
| if (ret) |
| return ret; |
| |
| nouveau_therm_ic_ctor(therm); |
| nouveau_therm_sensor_ctor(therm); |
| nouveau_therm_fan_ctor(therm); |
| |
| priv->fan.pwm_get = nv40_fan_pwm_get; |
| priv->fan.pwm_set = nv40_fan_pwm_set; |
| |
| therm->temp_get = nv40_temp_get; |
| therm->fan_get = nouveau_therm_fan_user_get; |
| therm->fan_set = nouveau_therm_fan_user_set; |
| therm->fan_sense = nouveau_therm_fan_sense; |
| therm->attr_get = nouveau_therm_attr_get; |
| therm->attr_set = nouveau_therm_attr_set; |
| |
| return 0; |
| } |
| |
| struct nouveau_oclass |
| nv40_therm_oclass = { |
| .handle = NV_SUBDEV(THERM, 0x40), |
| .ofuncs = &(struct nouveau_ofuncs) { |
| .ctor = nv40_therm_ctor, |
| .dtor = _nouveau_therm_dtor, |
| .init = nouveau_therm_init, |
| .fini = nouveau_therm_fini, |
| }, |
| }; |