/* * 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/gsp.h> static void gk104_gpio_intr_stat(struct nvkm_gpio *gpio, u32 *hi, u32 *lo) { struct nvkm_device *device = gpio->subdev.device; u32 intr0 = nvkm_rd32(device, 0x00dc00); u32 intr1 = nvkm_rd32(device, 0x00dc80); u32 stat0 = nvkm_rd32(device, 0x00dc08) & intr0; u32 stat1 = nvkm_rd32(device, 0x00dc88) & intr1; *lo = (stat1 & 0xffff0000) | (stat0 >> 16); *hi = (stat1 << 16) | (stat0 & 0x0000ffff); nvkm_wr32(device, 0x00dc00, intr0); nvkm_wr32(device, 0x00dc80, intr1); } static void gk104_gpio_intr_mask(struct nvkm_gpio *gpio, u32 type, u32 mask, u32 data) { struct nvkm_device *device = gpio->subdev.device; u32 inte0 = nvkm_rd32(device, 0x00dc08); u32 inte1 = nvkm_rd32(device, 0x00dc88); if (type & NVKM_GPIO_LO) inte0 = (inte0 & ~(mask << 16)) | (data << 16); if (type & NVKM_GPIO_HI) inte0 = (inte0 & ~(mask & 0xffff)) | (data & 0xffff); mask >>= 16; data >>= 16; if (type & NVKM_GPIO_LO) inte1 = (inte1 & ~(mask << 16)) | (data << 16); if (type & NVKM_GPIO_HI) inte1 = (inte1 & ~mask) | data; nvkm_wr32(device, 0x00dc08, inte0); nvkm_wr32(device, 0x00dc88, inte1); } static const struct nvkm_gpio_func gk104_gpio = { .lines = 32, .intr_stat = gk104_gpio_intr_stat, .intr_mask = gk104_gpio_intr_mask, .drive = gf119_gpio_drive, .sense = gf119_gpio_sense, .reset = gf119_gpio_reset, }; int gk104_gpio_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_gpio **pgpio) { if (nvkm_gsp_rm(device->gsp)) return -ENODEV; return nvkm_gpio_new_(&gk104_gpio, device, type, inst, pgpio); }