1/* $NetBSD: nouveau_nvkm_engine_disp_hdmigf119.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_hdmigf119.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $"); 28 29#include "hdmi.h" 30 31void 32gf119_hdmi_ctrl(struct nvkm_ior *ior, int head, bool enable, u8 max_ac_packet, 33 u8 rekey, u8 *avi, u8 avi_size, u8 *vendor, u8 vendor_size) 34{ 35 struct nvkm_device *device = ior->disp->engine.subdev.device; 36 const u32 ctrl = 0x40000000 * enable | 37 max_ac_packet << 16 | 38 rekey; 39 const u32 hoff = head * 0x800; 40 struct packed_hdmi_infoframe avi_infoframe; 41 struct packed_hdmi_infoframe vendor_infoframe; 42 43 pack_hdmi_infoframe(&avi_infoframe, avi, avi_size); 44 pack_hdmi_infoframe(&vendor_infoframe, vendor, vendor_size); 45 46 if (!(ctrl & 0x40000000)) { 47 nvkm_mask(device, 0x616798 + hoff, 0x40000000, 0x00000000); 48 nvkm_mask(device, 0x616730 + hoff, 0x00000001, 0x00000000); 49 nvkm_mask(device, 0x6167a4 + hoff, 0x00000001, 0x00000000); 50 nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000000); 51 return; 52 } 53 54 /* AVI InfoFrame */ 55 nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000000); 56 if (avi_size) { 57 nvkm_wr32(device, 0x61671c + hoff, avi_infoframe.header); 58 nvkm_wr32(device, 0x616720 + hoff, avi_infoframe.subpack0_low); 59 nvkm_wr32(device, 0x616724 + hoff, avi_infoframe.subpack0_high); 60 nvkm_wr32(device, 0x616728 + hoff, avi_infoframe.subpack1_low); 61 nvkm_wr32(device, 0x61672c + hoff, avi_infoframe.subpack1_high); 62 nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000001); 63 } 64 65 /* GENERIC(?) / Vendor InfoFrame? */ 66 nvkm_mask(device, 0x616730 + hoff, 0x00010001, 0x00010000); 67 if (vendor_size) { 68 /* 69 * These appear to be the audio infoframe registers, 70 * but no other set of infoframe registers has yet 71 * been found. 72 */ 73 nvkm_wr32(device, 0x616738 + hoff, vendor_infoframe.header); 74 nvkm_wr32(device, 0x61673c + hoff, vendor_infoframe.subpack0_low); 75 nvkm_wr32(device, 0x616740 + hoff, vendor_infoframe.subpack0_high); 76 /* Is there a second (or further?) set of subpack registers here? */ 77 nvkm_mask(device, 0x616730 + hoff, 0x00000001, 0x00000001); 78 } 79 80 /* ??? InfoFrame? */ 81 nvkm_mask(device, 0x6167a4 + hoff, 0x00000001, 0x00000000); 82 nvkm_wr32(device, 0x6167ac + hoff, 0x00000010); 83 nvkm_mask(device, 0x6167a4 + hoff, 0x00000001, 0x00000001); 84 85 /* HDMI_CTRL */ 86 nvkm_mask(device, 0x616798 + hoff, 0x401f007f, ctrl); 87} 88