1/* 2 * Copyright 2012 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * 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 OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 */ 24#include "nv50.h" 25#include "outp.h" 26 27#include <core/client.h> 28#include <subdev/timer.h> 29 30#include <nvif/class.h> 31#include <nvif/unpack.h> 32 33int 34gt215_hda_eld(NV50_DISP_MTHD_V1) 35{ 36 struct nvkm_device *device = disp->base.engine.subdev.device; 37 union { 38 struct nv50_disp_sor_hda_eld_v0 v0; 39 } *args = data; 40 const u32 soff = outp->or * 0x800; 41 int ret, i; 42 43 nvif_ioctl(object, "disp sor hda eld size %d\n", size); 44 if (nvif_unpack(args->v0, 0, 0, true)) { 45 nvif_ioctl(object, "disp sor hda eld vers %d\n", 46 args->v0.version); 47 if (size > 0x60) 48 return -E2BIG; 49 } else 50 return ret; 51 52 if (size && args->v0.data[0]) { 53 if (outp->info.type == DCB_OUTPUT_DP) { 54 nvkm_mask(device, 0x61c1e0 + soff, 0x8000000d, 0x80000001); 55 nvkm_msec(device, 2000, 56 u32 tmp = nvkm_rd32(device, 0x61c1e0 + soff); 57 if (!(tmp & 0x80000000)) 58 break; 59 ); 60 } 61 for (i = 0; i < size; i++) 62 nvkm_wr32(device, 0x61c440 + soff, (i << 8) | args->v0.data[0]); 63 for (; i < 0x60; i++) 64 nvkm_wr32(device, 0x61c440 + soff, (i << 8)); 65 nvkm_mask(device, 0x61c448 + soff, 0x80000003, 0x80000003); 66 } else { 67 if (outp->info.type == DCB_OUTPUT_DP) { 68 nvkm_mask(device, 0x61c1e0 + soff, 0x80000001, 0x80000000); 69 nvkm_msec(device, 2000, 70 u32 tmp = nvkm_rd32(device, 0x61c1e0 + soff); 71 if (!(tmp & 0x80000000)) 72 break; 73 ); 74 } 75 nvkm_mask(device, 0x61c448 + soff, 0x80000003, 0x80000000 | !!size); 76 } 77 78 return 0; 79} 80