1/* $NetBSD: nouveau_nvkm_engine_disp_hdagt215.c,v 1.3 2021/12/18 23:45:35 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_engine_disp_hdagt215.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $"); 28 29#include "ior.h" 30 31void 32gt215_hda_eld(struct nvkm_ior *ior, u8 *data, u8 size) 33{ 34 struct nvkm_device *device = ior->disp->engine.subdev.device; 35 const u32 soff = ior->id * 0x800; 36 int i; 37 38 for (i = 0; i < size; i++) 39 nvkm_wr32(device, 0x61c440 + soff, (i << 8) | data[i]); 40 for (; i < 0x60; i++) 41 nvkm_wr32(device, 0x61c440 + soff, (i << 8)); 42 nvkm_mask(device, 0x61c448 + soff, 0x80000002, 0x80000002); 43} 44 45void 46gt215_hda_hpd(struct nvkm_ior *ior, int head, bool present) 47{ 48 struct nvkm_device *device = ior->disp->engine.subdev.device; 49 u32 data = 0x80000000; 50 u32 mask = 0x80000001; 51 if (present) 52 data |= 0x00000001; 53 else 54 mask |= 0x00000002; 55 nvkm_mask(device, 0x61c448 + ior->id * 0x800, mask, data); 56} 57