/* * 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 */ #include "priv.h" #include <subdev/gpio.h> int gt215_therm_fan_sense(struct nvkm_therm *therm) { struct nvkm_device *device = therm->subdev.device; u32 tach = nvkm_rd32(device, 0x00e728) & 0x0000ffff; u32 ctrl = nvkm_rd32(device, 0x00e720); if (ctrl & 0x00000001) return tach * 60 / 2; return -ENODEV; } static void gt215_therm_init(struct nvkm_therm *therm) { struct nvkm_device *device = therm->subdev.device; struct dcb_gpio_func *tach = &therm->fan->tach; g84_sensor_setup(therm); /* enable fan tach, count revolutions per-second */ nvkm_mask(device, 0x00e720, 0x00000003, 0x00000002); if (tach->func != DCB_GPIO_UNUSED) { nvkm_wr32(device, 0x00e724, device->crystal * 1000); nvkm_mask(device, 0x00e720, 0x001f0000, tach->line << 16); nvkm_mask(device, 0x00e720, 0x00000001, 0x00000001); } nvkm_mask(device, 0x00e720, 0x00000002, 0x00000000); } static const struct nvkm_therm_func gt215_therm = { .init = gt215_therm_init, .fini = g84_therm_fini, .pwm_ctrl = nv50_fan_pwm_ctrl, .pwm_get = nv50_fan_pwm_get, .pwm_set = nv50_fan_pwm_set, .pwm_clock = nv50_fan_pwm_clock, .temp_get = g84_temp_get, .fan_sense = gt215_therm_fan_sense, .program_alarms = nvkm_therm_program_alarms_polling, }; int gt215_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_therm **ptherm) { return nvkm_therm_new_(>215_therm, device, type, inst, ptherm); }