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/*
* Copyright (C) 2008 Maarten Maathuis.
* All Rights Reserved.
*
* 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 (including the
* next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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 "nv50_cursor.h"
#include "nv50_crtc.h"
#include "nv50_display.h"
static int nv50_cursor_enable(struct nv50_crtc *crtc)
{
struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
NV50_DEBUG("\n");
NV_WRITE(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index), 0x2000);
while(NV_READ(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index)) & NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_MASK);
NV_WRITE(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index), NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_ON);
while((NV_READ(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index)) & NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_MASK)
!= NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_ACTIVE);
crtc->cursor->enabled = true;
return 0;
}
static int nv50_cursor_disable(struct nv50_crtc *crtc)
{
struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
NV50_DEBUG("\n");
NV_WRITE(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index), 0);
while(NV_READ(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index)) & NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_MASK);
crtc->cursor->enabled = false;
return 0;
}
/* Calling update or changing the stored cursor state is left to the higher level ioctl's. */
static int nv50_cursor_show(struct nv50_crtc *crtc)
{
struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
uint32_t offset = crtc->index * 0x400;
NV50_DEBUG("\n");
/* Better not show the cursor when we have none. */
/* TODO: is cursor offset actually set? */
if (!crtc->cursor->block) {
DRM_ERROR("No cursor available on crtc %d\n", crtc->index);
return -EINVAL;
}
OUT_MODE(NV50_CRTC0_CURSOR_CTRL + offset, NV50_CRTC0_CURSOR_CTRL_SHOW);
return 0;
}
static int nv50_cursor_hide(struct nv50_crtc *crtc)
{
struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
uint32_t offset = crtc->index * 0x400;
NV50_DEBUG("\n");
OUT_MODE(NV50_CRTC0_CURSOR_CTRL + offset, NV50_CRTC0_CURSOR_CTRL_HIDE);
return 0;
}
static int nv50_cursor_set_pos(struct nv50_crtc *crtc, int x, int y)
{
struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
NV_WRITE(NV50_HW_CURSOR_POS(crtc->index), ((y & 0xFFFF) << 16) | (x & 0xFFFF));
/* Needed to make the cursor move. */
NV_WRITE(NV50_HW_CURSOR_POS_CTRL(crtc->index), 0);
return 0;
}
static int nv50_cursor_set_offset(struct nv50_crtc *crtc)
{
struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
NV50_DEBUG("\n");
if (crtc->cursor->block) {
OUT_MODE(NV50_CRTC0_CURSOR_OFFSET + crtc->index * 0x400, crtc->cursor->block->start >> 8);
} else {
OUT_MODE(NV50_CRTC0_CURSOR_OFFSET + crtc->index * 0x400, 0);
}
return 0;
}
static int nv50_cursor_set_bo(struct nv50_crtc *crtc, drm_handle_t handle)
{
struct mem_block *block = NULL;
struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
NV50_DEBUG("\n");
block = find_block_by_handle(dev_priv->fb_heap, handle);
if (block) {
bool first_time = false;
if (!crtc->cursor->block)
first_time = true;
crtc->cursor->block = block;
/* set the cursor offset cursor */
if (first_time) {
crtc->cursor->set_offset(crtc);
if (crtc->cursor->visible)
crtc->cursor->show(crtc);
}
} else {
DRM_ERROR("Unable to find cursor bo with handle 0x%X\n", handle);
return -EINVAL;
}
return 0;
}
int nv50_cursor_create(struct nv50_crtc *crtc)
{
NV50_DEBUG("\n");
if (!crtc)
return -EINVAL;
crtc->cursor = kzalloc(sizeof(struct nv50_cursor), GFP_KERNEL);
if (!crtc->cursor)
return -ENOMEM;
/* function pointers */
crtc->cursor->show = nv50_cursor_show;
crtc->cursor->hide = nv50_cursor_hide;
crtc->cursor->set_pos = nv50_cursor_set_pos;
crtc->cursor->set_offset = nv50_cursor_set_offset;
crtc->cursor->set_bo = nv50_cursor_set_bo;
crtc->cursor->enable = nv50_cursor_enable;
crtc->cursor->disable = nv50_cursor_disable;
return 0;
}
int nv50_cursor_destroy(struct nv50_crtc *crtc)
{
int rval = 0;
NV50_DEBUG("\n");
if (!crtc)
return -EINVAL;
if (crtc->cursor->enabled) {
rval = crtc->cursor->disable(crtc);
if (rval != 0)
return rval;
}
kfree(crtc->cursor);
crtc->cursor = NULL;
return 0;
}
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