1/* $NetBSD: nouveau_nvkm_engine_disp_headnv04.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $ */ 2 3/* 4 * Copyright 2017 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 <bskeggs@redhat.com> 25 */ 26#include <sys/cdefs.h> 27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_headnv04.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $"); 28 29#include "head.h" 30 31static void 32nv04_head_vblank_put(struct nvkm_head *head) 33{ 34 struct nvkm_device *device = head->disp->engine.subdev.device; 35 nvkm_wr32(device, 0x600140 + (head->id * 0x2000) , 0x00000000); 36} 37 38static void 39nv04_head_vblank_get(struct nvkm_head *head) 40{ 41 struct nvkm_device *device = head->disp->engine.subdev.device; 42 nvkm_wr32(device, 0x600140 + (head->id * 0x2000) , 0x00000001); 43} 44 45static void 46nv04_head_rgpos(struct nvkm_head *head, u16 *hline, u16 *vline) 47{ 48 struct nvkm_device *device = head->disp->engine.subdev.device; 49 u32 data = nvkm_rd32(device, 0x600868 + (head->id * 0x2000)); 50 *hline = (data & 0xffff0000) >> 16; 51 *vline = (data & 0x0000ffff); 52} 53 54static void 55nv04_head_state(struct nvkm_head *head, struct nvkm_head_state *state) 56{ 57 struct nvkm_device *device = head->disp->engine.subdev.device; 58 const u32 hoff = head->id * 0x0200; 59 state->vblanks = nvkm_rd32(device, 0x680800 + hoff) & 0x0000ffff; 60 state->vtotal = nvkm_rd32(device, 0x680804 + hoff) & 0x0000ffff; 61 state->vblanke = state->vtotal - 1; 62 state->hblanks = nvkm_rd32(device, 0x680820 + hoff) & 0x0000ffff; 63 state->htotal = nvkm_rd32(device, 0x680824 + hoff) & 0x0000ffff; 64 state->hblanke = state->htotal - 1; 65} 66 67static const struct nvkm_head_func 68nv04_head = { 69 .state = nv04_head_state, 70 .rgpos = nv04_head_rgpos, 71 .vblank_get = nv04_head_vblank_get, 72 .vblank_put = nv04_head_vblank_put, 73}; 74 75int 76nv04_head_new(struct nvkm_disp *disp, int id) 77{ 78 return nvkm_head_new_(&nv04_head, disp, id); 79} 80