nv04.c

  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 "priv.h"
 25#include "head.h"
 26
 27#include <nvif/class.h>
 28
 29static void
 30nv04_head_vblank_put(struct nvkm_head *head)
 31{
 32	struct nvkm_device *device = head->disp->engine.subdev.device;
 33	nvkm_wr32(device, 0x600140 + (head->id * 0x2000) , 0x00000000);
 34}
 35
 36static void
 37nv04_head_vblank_get(struct nvkm_head *head)
 38{
 39	struct nvkm_device *device = head->disp->engine.subdev.device;
 40	nvkm_wr32(device, 0x600140 + (head->id * 0x2000) , 0x00000001);
 41}
 42
 43static void
 44nv04_head_rgpos(struct nvkm_head *head, u16 *hline, u16 *vline)
 45{
 46	struct nvkm_device *device = head->disp->engine.subdev.device;
 47	u32 data = nvkm_rd32(device, 0x600868 + (head->id * 0x2000));
 48	*hline = (data & 0xffff0000) >> 16;
 49	*vline = (data & 0x0000ffff);
 50}
 51
 52static void
 53nv04_head_state(struct nvkm_head *head, struct nvkm_head_state *state)
 54{
 55	struct nvkm_device *device = head->disp->engine.subdev.device;
 56	const u32 hoff = head->id * 0x0200;
 57	state->vblanks = nvkm_rd32(device, 0x680800 + hoff) & 0x0000ffff;
 58	state->vtotal  = nvkm_rd32(device, 0x680804 + hoff) & 0x0000ffff;
 59	state->vblanke = state->vtotal - 1;
 60	state->hblanks = nvkm_rd32(device, 0x680820 + hoff) & 0x0000ffff;
 61	state->htotal  = nvkm_rd32(device, 0x680824 + hoff) & 0x0000ffff;
 62	state->hblanke = state->htotal - 1;
 63}
 64
 65static const struct nvkm_head_func
 66nv04_head = {
 67	.state = nv04_head_state,
 68	.rgpos = nv04_head_rgpos,
 69	.vblank_get = nv04_head_vblank_get,
 70	.vblank_put = nv04_head_vblank_put,
 71};
 72
 73static int
 74nv04_head_new(struct nvkm_disp *disp, int id)
 75{
 76	return nvkm_head_new_(&nv04_head, disp, id);
 77}
 78
 79static void
 80nv04_disp_intr(struct nvkm_disp *disp)
 81{
 82	struct nvkm_subdev *subdev = &disp->engine.subdev;
 83	struct nvkm_device *device = subdev->device;
 84	u32 crtc0 = nvkm_rd32(device, 0x600100);
 85	u32 crtc1 = nvkm_rd32(device, 0x602100);
 86	u32 pvideo;
 87
 88	if (crtc0 & 0x00000001) {
 89		nvkm_disp_vblank(disp, 0);
 90		nvkm_wr32(device, 0x600100, 0x00000001);
 91	}
 92
 93	if (crtc1 & 0x00000001) {
 94		nvkm_disp_vblank(disp, 1);
 95		nvkm_wr32(device, 0x602100, 0x00000001);
 96	}
 97
 98	if (device->chipset >= 0x10 && device->chipset <= 0x40) {
 99		pvideo = nvkm_rd32(device, 0x8100);
100		if (pvideo & ~0x11)
101			nvkm_info(subdev, "PVIDEO intr: %08x\n", pvideo);
102		nvkm_wr32(device, 0x8100, pvideo);
103	}
104}
105
106static const struct nvkm_disp_func
107nv04_disp = {
108	.intr = nv04_disp_intr,
109	.root = { 0, 0, NV04_DISP },
110	.user = { {} },
111};
112
113int
114nv04_disp_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
115	      struct nvkm_disp **pdisp)
116{
117	int ret, i;
118
119	ret = nvkm_disp_new_(&nv04_disp, device, type, inst, pdisp);
120	if (ret)
121		return ret;
122
123	for (i = 0; i < 2; i++) {
124		ret = nv04_head_new(*pdisp, i);
125		if (ret)
126			return ret;
127	}
128
129	return 0;
130}