| /* |
| * Copyright 2012 Red Hat Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: Ben Skeggs |
| */ |
| |
| #include "priv.h" |
| |
| #include <core/event.h> |
| #include <core/class.h> |
| |
| struct nv04_disp_priv { |
| struct nouveau_disp base; |
| }; |
| |
| static int |
| nv04_disp_scanoutpos(struct nouveau_object *object, u32 mthd, |
| void *data, u32 size) |
| { |
| struct nv04_disp_priv *priv = (void *)object->engine; |
| struct nv04_display_scanoutpos *args = data; |
| const int head = (mthd & NV04_DISP_MTHD_HEAD); |
| u32 line; |
| |
| if (size < sizeof(*args)) |
| return -EINVAL; |
| |
| args->vblanks = nv_rd32(priv, 0x680800 + (head * 0x2000)) & 0xffff; |
| args->vtotal = nv_rd32(priv, 0x680804 + (head * 0x2000)) & 0xffff; |
| args->vblanke = args->vtotal - 1; |
| |
| args->hblanks = nv_rd32(priv, 0x680820 + (head * 0x2000)) & 0xffff; |
| args->htotal = nv_rd32(priv, 0x680824 + (head * 0x2000)) & 0xffff; |
| args->hblanke = args->htotal - 1; |
| |
| /* |
| * If output is vga instead of digital then vtotal/htotal is invalid |
| * so we have to give up and trigger the timestamping fallback in the |
| * drm core. |
| */ |
| if (!args->vtotal || !args->htotal) |
| return -ENOTSUPP; |
| |
| args->time[0] = ktime_to_ns(ktime_get()); |
| line = nv_rd32(priv, 0x600868 + (head * 0x2000)); |
| args->time[1] = ktime_to_ns(ktime_get()); |
| args->hline = (line & 0xffff0000) >> 16; |
| args->vline = (line & 0x0000ffff); |
| return 0; |
| } |
| |
| #define HEAD_MTHD(n) (n), (n) + 0x01 |
| |
| static struct nouveau_omthds |
| nv04_disp_omthds[] = { |
| { HEAD_MTHD(NV04_DISP_SCANOUTPOS), nv04_disp_scanoutpos }, |
| {} |
| }; |
| |
| static struct nouveau_oclass |
| nv04_disp_sclass[] = { |
| { NV04_DISP_CLASS, &nouveau_object_ofuncs, nv04_disp_omthds }, |
| {}, |
| }; |
| |
| /******************************************************************************* |
| * Display engine implementation |
| ******************************************************************************/ |
| |
| static void |
| nv04_disp_vblank_init(struct nvkm_event *event, int type, int head) |
| { |
| struct nouveau_disp *disp = container_of(event, typeof(*disp), vblank); |
| nv_wr32(disp, 0x600140 + (head * 0x2000) , 0x00000001); |
| } |
| |
| static void |
| nv04_disp_vblank_fini(struct nvkm_event *event, int type, int head) |
| { |
| struct nouveau_disp *disp = container_of(event, typeof(*disp), vblank); |
| nv_wr32(disp, 0x600140 + (head * 0x2000) , 0x00000000); |
| } |
| |
| static const struct nvkm_event_func |
| nv04_disp_vblank_func = { |
| .ctor = nouveau_disp_vblank_ctor, |
| .init = nv04_disp_vblank_init, |
| .fini = nv04_disp_vblank_fini, |
| }; |
| |
| static void |
| nv04_disp_intr(struct nouveau_subdev *subdev) |
| { |
| struct nv04_disp_priv *priv = (void *)subdev; |
| u32 crtc0 = nv_rd32(priv, 0x600100); |
| u32 crtc1 = nv_rd32(priv, 0x602100); |
| u32 pvideo; |
| |
| if (crtc0 & 0x00000001) { |
| nouveau_disp_vblank(&priv->base, 0); |
| nv_wr32(priv, 0x600100, 0x00000001); |
| } |
| |
| if (crtc1 & 0x00000001) { |
| nouveau_disp_vblank(&priv->base, 1); |
| nv_wr32(priv, 0x602100, 0x00000001); |
| } |
| |
| if (nv_device(priv)->chipset >= 0x10 && |
| nv_device(priv)->chipset <= 0x40) { |
| pvideo = nv_rd32(priv, 0x8100); |
| if (pvideo & ~0x11) |
| nv_info(priv, "PVIDEO intr: %08x\n", pvideo); |
| nv_wr32(priv, 0x8100, pvideo); |
| } |
| } |
| |
| static int |
| nv04_disp_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, void *data, u32 size, |
| struct nouveau_object **pobject) |
| { |
| struct nv04_disp_priv *priv; |
| int ret; |
| |
| ret = nouveau_disp_create(parent, engine, oclass, 2, "DISPLAY", |
| "display", &priv); |
| *pobject = nv_object(priv); |
| if (ret) |
| return ret; |
| |
| nv_engine(priv)->sclass = nv04_disp_sclass; |
| nv_subdev(priv)->intr = nv04_disp_intr; |
| return 0; |
| } |
| |
| struct nouveau_oclass * |
| nv04_disp_oclass = &(struct nouveau_disp_impl) { |
| .base.handle = NV_ENGINE(DISP, 0x04), |
| .base.ofuncs = &(struct nouveau_ofuncs) { |
| .ctor = nv04_disp_ctor, |
| .dtor = _nouveau_disp_dtor, |
| .init = _nouveau_disp_init, |
| .fini = _nouveau_disp_fini, |
| }, |
| .vblank = &nv04_disp_vblank_func, |
| }.base; |