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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 | /* * 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" static int pwm_info(struct nvkm_therm *therm, int line) { struct nvkm_subdev *subdev = &therm->subdev; struct nvkm_device *device = subdev->device; u32 gpio = nvkm_rd32(device, 0x00d610 + (line * 0x04)); switch (gpio & 0x000000c0) { case 0x00000000: /* normal mode, possibly pwm forced off by us */ case 0x00000040: /* nvio special */ switch (gpio & 0x0000001f) { case 0x00: return 2; case 0x19: return 1; case 0x1c: return 0; case 0x1e: return 2; default: break; } break; default: break; } nvkm_error(subdev, "GPIO %d unknown PWM: %08x\n", line, gpio); return -ENODEV; } int gf119_fan_pwm_ctrl(struct nvkm_therm *therm, int line, bool enable) { struct nvkm_device *device = therm->subdev.device; u32 data = enable ? 0x00000040 : 0x00000000; int indx = pwm_info(therm, line); if (indx < 0) return indx; else if (indx < 2) nvkm_mask(device, 0x00d610 + (line * 0x04), 0x000000c0, data); /* nothing to do for indx == 2, it seems hardwired to PTHERM */ return 0; } int gf119_fan_pwm_get(struct nvkm_therm *therm, int line, u32 *divs, u32 *duty) { struct nvkm_device *device = therm->subdev.device; int indx = pwm_info(therm, line); if (indx < 0) return indx; else if (indx < 2) { if (nvkm_rd32(device, 0x00d610 + (line * 0x04)) & 0x00000040) { *divs = nvkm_rd32(device, 0x00e114 + (indx * 8)); *duty = nvkm_rd32(device, 0x00e118 + (indx * 8)); return 0; } } else if (indx == 2) { *divs = nvkm_rd32(device, 0x0200d8) & 0x1fff; *duty = nvkm_rd32(device, 0x0200dc) & 0x1fff; return 0; } return -EINVAL; } int gf119_fan_pwm_set(struct nvkm_therm *therm, int line, u32 divs, u32 duty) { struct nvkm_device *device = therm->subdev.device; int indx = pwm_info(therm, line); if (indx < 0) return indx; else if (indx < 2) { nvkm_wr32(device, 0x00e114 + (indx * 8), divs); nvkm_wr32(device, 0x00e118 + (indx * 8), duty | 0x80000000); } else if (indx == 2) { nvkm_mask(device, 0x0200d8, 0x1fff, divs); /* keep the high bits */ nvkm_wr32(device, 0x0200dc, duty | 0x40000000); } return 0; } int gf119_fan_pwm_clock(struct nvkm_therm *therm, int line) { struct nvkm_device *device = therm->subdev.device; int indx = pwm_info(therm, line); if (indx < 0) return 0; else if (indx < 2) return (device->crystal * 1000) / 20; else return device->crystal * 1000 / 10; } void gf119_therm_init(struct nvkm_therm *therm) { struct nvkm_device *device = therm->subdev.device; g84_sensor_setup(therm); /* enable fan tach, count revolutions per-second */ nvkm_mask(device, 0x00e720, 0x00000003, 0x00000002); if (therm->fan->tach.func != DCB_GPIO_UNUSED) { nvkm_mask(device, 0x00d79c, 0x000000ff, therm->fan->tach.line); nvkm_wr32(device, 0x00e724, device->crystal * 1000); nvkm_mask(device, 0x00e720, 0x00000001, 0x00000001); } nvkm_mask(device, 0x00e720, 0x00000002, 0x00000000); } static const struct nvkm_therm_func gf119_therm = { .init = gf119_therm_init, .fini = g84_therm_fini, .pwm_ctrl = gf119_fan_pwm_ctrl, .pwm_get = gf119_fan_pwm_get, .pwm_set = gf119_fan_pwm_set, .pwm_clock = gf119_fan_pwm_clock, .temp_get = g84_temp_get, .fan_sense = gt215_therm_fan_sense, .program_alarms = nvkm_therm_program_alarms_polling, }; int gf119_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_therm **ptherm) { return nvkm_therm_new_(&gf119_therm, device, type, inst, ptherm); } |