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1/*2 * Copyright 2012 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs23 */24#include "priv.h"25 26void27g94_gpio_intr_stat(struct nvkm_gpio *gpio, u32 *hi, u32 *lo)28{29 struct nvkm_device *device = gpio->subdev.device;30 u32 intr0 = nvkm_rd32(device, 0x00e054);31 u32 intr1 = nvkm_rd32(device, 0x00e074);32 u32 stat0 = nvkm_rd32(device, 0x00e050) & intr0;33 u32 stat1 = nvkm_rd32(device, 0x00e070) & intr1;34 *lo = (stat1 & 0xffff0000) | (stat0 >> 16);35 *hi = (stat1 << 16) | (stat0 & 0x0000ffff);36 nvkm_wr32(device, 0x00e054, intr0);37 nvkm_wr32(device, 0x00e074, intr1);38}39 40void41g94_gpio_intr_mask(struct nvkm_gpio *gpio, u32 type, u32 mask, u32 data)42{43 struct nvkm_device *device = gpio->subdev.device;44 u32 inte0 = nvkm_rd32(device, 0x00e050);45 u32 inte1 = nvkm_rd32(device, 0x00e070);46 if (type & NVKM_GPIO_LO)47 inte0 = (inte0 & ~(mask << 16)) | (data << 16);48 if (type & NVKM_GPIO_HI)49 inte0 = (inte0 & ~(mask & 0xffff)) | (data & 0xffff);50 mask >>= 16;51 data >>= 16;52 if (type & NVKM_GPIO_LO)53 inte1 = (inte1 & ~(mask << 16)) | (data << 16);54 if (type & NVKM_GPIO_HI)55 inte1 = (inte1 & ~mask) | data;56 nvkm_wr32(device, 0x00e050, inte0);57 nvkm_wr32(device, 0x00e070, inte1);58}59 60static const struct nvkm_gpio_func61g94_gpio = {62 .lines = 32,63 .intr_stat = g94_gpio_intr_stat,64 .intr_mask = g94_gpio_intr_mask,65 .drive = nv50_gpio_drive,66 .sense = nv50_gpio_sense,67 .reset = nv50_gpio_reset,68};69 70int71g94_gpio_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,72 struct nvkm_gpio **pgpio)73{74 return nvkm_gpio_new_(&g94_gpio, device, type, inst, pgpio);75}76