headnv04.c (2654B)
1/* 2 * Copyright 2017 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 <bskeggs@redhat.com> 23 */ 24#include "head.h" 25 26static void 27nv04_head_vblank_put(struct nvkm_head *head) 28{ 29 struct nvkm_device *device = head->disp->engine.subdev.device; 30 nvkm_wr32(device, 0x600140 + (head->id * 0x2000) , 0x00000000); 31} 32 33static void 34nv04_head_vblank_get(struct nvkm_head *head) 35{ 36 struct nvkm_device *device = head->disp->engine.subdev.device; 37 nvkm_wr32(device, 0x600140 + (head->id * 0x2000) , 0x00000001); 38} 39 40static void 41nv04_head_rgpos(struct nvkm_head *head, u16 *hline, u16 *vline) 42{ 43 struct nvkm_device *device = head->disp->engine.subdev.device; 44 u32 data = nvkm_rd32(device, 0x600868 + (head->id * 0x2000)); 45 *hline = (data & 0xffff0000) >> 16; 46 *vline = (data & 0x0000ffff); 47} 48 49static void 50nv04_head_state(struct nvkm_head *head, struct nvkm_head_state *state) 51{ 52 struct nvkm_device *device = head->disp->engine.subdev.device; 53 const u32 hoff = head->id * 0x0200; 54 state->vblanks = nvkm_rd32(device, 0x680800 + hoff) & 0x0000ffff; 55 state->vtotal = nvkm_rd32(device, 0x680804 + hoff) & 0x0000ffff; 56 state->vblanke = state->vtotal - 1; 57 state->hblanks = nvkm_rd32(device, 0x680820 + hoff) & 0x0000ffff; 58 state->htotal = nvkm_rd32(device, 0x680824 + hoff) & 0x0000ffff; 59 state->hblanke = state->htotal - 1; 60} 61 62static const struct nvkm_head_func 63nv04_head = { 64 .state = nv04_head_state, 65 .rgpos = nv04_head_rgpos, 66 .vblank_get = nv04_head_vblank_get, 67 .vblank_put = nv04_head_vblank_put, 68}; 69 70int 71nv04_head_new(struct nvkm_disp *disp, int id) 72{ 73 return nvkm_head_new_(&nv04_head, disp, id); 74}