linux/drivers/gpu/drm/nouveau/dispnv50/cursc37a.c

/*
 * Copyright 2018 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.
 */
#include "curs.h"
#include "atom.h"

#include <nvhw/class/clc37a.h>

static int
cursc37a_update(struct nv50_wndw *wndw, u32 *interlock)
{
	struct nvif_object *user = &wndw->wimm.base.user;
	int ret = nvif_chan_wait(&wndw->wimm, 1);
	if (ret == 0)
		NVIF_WR32(user, NVC37A, UPDATE, 0x00000001);
	return ret;
}

static int
cursc37a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
{
	struct nvif_object *user = &wndw->wimm.base.user;
	int ret = nvif_chan_wait(&wndw->wimm, 1);
	if (ret == 0) {
		NVIF_WR32(user, NVC37A, SET_CURSOR_HOT_SPOT_POINT_OUT(0),
			  NVVAL(NVC37A, SET_CURSOR_HOT_SPOT_POINT_OUT, X, asyw->point.x) |
			  NVVAL(NVC37A, SET_CURSOR_HOT_SPOT_POINT_OUT, Y, asyw->point.y));
	}
	return ret;
}

static const struct nv50_wimm_func
cursc37a = {
	.point = cursc37a_point,
	.update = cursc37a_update,
};

int
cursc37a_new(struct nouveau_drm *drm, int head, s32 oclass,
	     struct nv50_wndw **pwndw)
{
	return curs507a_new_(&cursc37a, drm, head, oclass,
			     0x00000001 << head, pwndw);
}