1/* $NetBSD: nouveau_nvkm_subdev_gpio_gk104.c,v 1.4 2021/12/18 23:45:39 riastradh Exp $ */ 2 3/* 4 * Copyright 2012 Red Hat Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Ben Skeggs 25 */ 26#include <sys/cdefs.h> 27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_gpio_gk104.c,v 1.4 2021/12/18 23:45:39 riastradh Exp $"); 28 29#include "priv.h" 30 31static void 32gk104_gpio_intr_stat(struct nvkm_gpio *gpio, u32 *hi, u32 *lo) 33{ 34 struct nvkm_device *device = gpio->subdev.device; 35 u32 intr0 = nvkm_rd32(device, 0x00dc00); 36 u32 intr1 = nvkm_rd32(device, 0x00dc80); 37 u32 stat0 = nvkm_rd32(device, 0x00dc08) & intr0; 38 u32 stat1 = nvkm_rd32(device, 0x00dc88) & intr1; 39 *lo = (stat1 & 0xffff0000) | (stat0 >> 16); 40 *hi = (stat1 << 16) | (stat0 & 0x0000ffff); 41 nvkm_wr32(device, 0x00dc00, intr0); 42 nvkm_wr32(device, 0x00dc80, intr1); 43} 44 45static void 46gk104_gpio_intr_mask(struct nvkm_gpio *gpio, u32 type, u32 mask, u32 data) 47{ 48 struct nvkm_device *device = gpio->subdev.device; 49 u32 inte0 = nvkm_rd32(device, 0x00dc08); 50 u32 inte1 = nvkm_rd32(device, 0x00dc88); 51 if (type & NVKM_GPIO_LO) 52 inte0 = (inte0 & ~(mask << 16)) | (data << 16); 53 if (type & NVKM_GPIO_HI) 54 inte0 = (inte0 & ~(mask & 0xffff)) | (data & 0xffff); 55 mask >>= 16; 56 data >>= 16; 57 if (type & NVKM_GPIO_LO) 58 inte1 = (inte1 & ~(mask << 16)) | (data << 16); 59 if (type & NVKM_GPIO_HI) 60 inte1 = (inte1 & ~mask) | data; 61 nvkm_wr32(device, 0x00dc08, inte0); 62 nvkm_wr32(device, 0x00dc88, inte1); 63} 64 65static const struct nvkm_gpio_func 66gk104_gpio = { 67 .lines = 32, 68 .intr_stat = gk104_gpio_intr_stat, 69 .intr_mask = gk104_gpio_intr_mask, 70 .drive = gf119_gpio_drive, 71 .sense = gf119_gpio_sense, 72 .reset = gf119_gpio_reset, 73}; 74 75int 76gk104_gpio_new(struct nvkm_device *device, int index, struct nvkm_gpio **pgpio) 77{ 78 return nvkm_gpio_new_(&gk104_gpio, device, index, pgpio); 79} 80