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/*
* Copyright 2007-8 Advanced Micro Devices, Inc.
* Copyright 2008 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: Dave Airlie
* Alex Deucher
*/
#include "drmP.h"
#include "radeon_drm.h"
#include "radeon.h"
#define CURSOR_WIDTH 64
#define CURSOR_HEIGHT 64
static void radeon_lock_cursor(struct drm_crtc *crtc, bool lock)
{
struct radeon_device *rdev = crtc->dev->dev_private;
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
uint32_t cur_lock;
if (ASIC_IS_AVIVO(rdev)) {
cur_lock = RREG32(AVIVO_D1CUR_UPDATE + radeon_crtc->crtc_offset);
if (lock)
cur_lock |= AVIVO_D1CURSOR_UPDATE_LOCK;
else
cur_lock &= ~AVIVO_D1CURSOR_UPDATE_LOCK;
WREG32(AVIVO_D1CUR_UPDATE + radeon_crtc->crtc_offset, cur_lock);
} else {
cur_lock = RREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset);
if (lock)
cur_lock |= RADEON_CUR_LOCK;
else
cur_lock &= ~RADEON_CUR_LOCK;
WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, cur_lock);
}
}
static void radeon_hide_cursor(struct drm_crtc *crtc)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct radeon_device *rdev = crtc->dev->dev_private;
if (ASIC_IS_AVIVO(rdev)) {
WREG32(RADEON_MM_INDEX, AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset);
WREG32(RADEON_MM_DATA, (AVIVO_D1CURSOR_MODE_24BPP << AVIVO_D1CURSOR_MODE_SHIFT));
} else {
switch (radeon_crtc->crtc_id) {
case 0:
WREG32(RADEON_MM_INDEX, RADEON_CRTC_GEN_CNTL);
break;
case 1:
WREG32(RADEON_MM_INDEX, RADEON_CRTC2_GEN_CNTL);
break;
default:
return;
}
WREG32_P(RADEON_MM_DATA, 0, ~RADEON_CRTC_CUR_EN);
}
}
static void radeon_show_cursor(struct drm_crtc *crtc)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct radeon_device *rdev = crtc->dev->dev_private;
if (ASIC_IS_AVIVO(rdev)) {
WREG32(RADEON_MM_INDEX, AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset);
WREG32(RADEON_MM_DATA, AVIVO_D1CURSOR_EN |
(AVIVO_D1CURSOR_MODE_24BPP << AVIVO_D1CURSOR_MODE_SHIFT));
} else {
switch (radeon_crtc->crtc_id) {
case 0:
WREG32(RADEON_MM_INDEX, RADEON_CRTC_GEN_CNTL);
break;
case 1:
WREG32(RADEON_MM_INDEX, RADEON_CRTC2_GEN_CNTL);
break;
default:
return;
}
WREG32_P(RADEON_MM_DATA, (RADEON_CRTC_CUR_EN |
(RADEON_CRTC_CUR_MODE_24BPP << RADEON_CRTC_CUR_MODE_SHIFT)),
~(RADEON_CRTC_CUR_EN | RADEON_CRTC_CUR_MODE_MASK));
}
}
static void radeon_set_cursor(struct drm_crtc *crtc, struct drm_gem_object *obj,
uint32_t gpu_addr)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct radeon_device *rdev = crtc->dev->dev_private;
if (ASIC_IS_AVIVO(rdev))
WREG32(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset, gpu_addr);
else {
radeon_crtc->legacy_cursor_offset = gpu_addr - radeon_crtc->legacy_display_base_addr;
/* offset is from DISP(2)_BASE_ADDRESS */
WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, radeon_crtc->legacy_cursor_offset);
}
}
int radeon_crtc_cursor_set(struct drm_crtc *crtc,
struct drm_file *file_priv,
uint32_t handle,
uint32_t width,
uint32_t height)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct drm_gem_object *obj;
uint64_t gpu_addr;
int ret;
if (!handle) {
/* turn off cursor */
radeon_hide_cursor(crtc);
obj = NULL;
goto unpin;
}
if ((width > CURSOR_WIDTH) || (height > CURSOR_HEIGHT)) {
DRM_ERROR("bad cursor width or height %d x %d\n", width, height);
return -EINVAL;
}
radeon_crtc->cursor_width = width;
radeon_crtc->cursor_height = height;
obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
if (!obj) {
DRM_ERROR("Cannot find cursor object %x for crtc %d\n", handle, radeon_crtc->crtc_id);
return -EINVAL;
}
ret = radeon_gem_object_pin(obj, RADEON_GEM_DOMAIN_VRAM, &gpu_addr);
if (ret)
goto fail;
radeon_lock_cursor(crtc, true);
/* XXX only 27 bit offset for legacy cursor */
radeon_set_cursor(crtc, obj, gpu_addr);
radeon_show_cursor(crtc);
radeon_lock_cursor(crtc, false);
unpin:
if (radeon_crtc->cursor_bo) {
radeon_gem_object_unpin(radeon_crtc->cursor_bo);
mutex_lock(&crtc->dev->struct_mutex);
drm_gem_object_unreference(radeon_crtc->cursor_bo);
mutex_unlock(&crtc->dev->struct_mutex);
}
radeon_crtc->cursor_bo = obj;
return 0;
fail:
mutex_lock(&crtc->dev->struct_mutex);
drm_gem_object_unreference(obj);
mutex_unlock(&crtc->dev->struct_mutex);
return 0;
}
int radeon_crtc_cursor_move(struct drm_crtc *crtc,
int x, int y)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct radeon_device *rdev = crtc->dev->dev_private;
int xorigin = 0, yorigin = 0;
if (x < 0)
xorigin = -x + 1;
if (y < 0)
yorigin = -y + 1;
if (xorigin >= CURSOR_WIDTH)
xorigin = CURSOR_WIDTH - 1;
if (yorigin >= CURSOR_HEIGHT)
yorigin = CURSOR_HEIGHT - 1;
radeon_lock_cursor(crtc, true);
if (ASIC_IS_AVIVO(rdev)) {
int w = radeon_crtc->cursor_width;
int i = 0;
struct drm_crtc *crtc_p;
/* avivo cursor are offset into the total surface */
x += crtc->x;
y += crtc->y;
DRM_DEBUG("x %d y %d c->x %d c->y %d\n", x, y, crtc->x, crtc->y);
/* avivo cursor image can't end on 128 pixel boundry or
* go past the end of the frame if both crtcs are enabled
*/
list_for_each_entry(crtc_p, &crtc->dev->mode_config.crtc_list, head) {
if (crtc_p->enabled)
i++;
}
if (i > 1) {
int cursor_end, frame_end;
cursor_end = x - xorigin + w;
frame_end = crtc->x + crtc->mode.crtc_hdisplay;
if (cursor_end >= frame_end) {
w = w - (cursor_end - frame_end);
if (!(frame_end & 0x7f))
w--;
} else {
if (!(cursor_end & 0x7f))
w--;
}
if (w <= 0)
w = 1;
}
WREG32(AVIVO_D1CUR_POSITION + radeon_crtc->crtc_offset,
((xorigin ? 0 : x) << 16) |
(yorigin ? 0 : y));
WREG32(AVIVO_D1CUR_HOT_SPOT + radeon_crtc->crtc_offset, (xorigin << 16) | yorigin);
WREG32(AVIVO_D1CUR_SIZE + radeon_crtc->crtc_offset,
((w - 1) << 16) | (radeon_crtc->cursor_height - 1));
} else {
if (crtc->mode.flags & DRM_MODE_FLAG_DBLSCAN)
y *= 2;
WREG32(RADEON_CUR_HORZ_VERT_OFF + radeon_crtc->crtc_offset,
(RADEON_CUR_LOCK
| (xorigin << 16)
| yorigin));
WREG32(RADEON_CUR_HORZ_VERT_POSN + radeon_crtc->crtc_offset,
(RADEON_CUR_LOCK
| ((xorigin ? 0 : x) << 16)
| (yorigin ? 0 : y)));
/* offset is from DISP(2)_BASE_ADDRESS */
WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, (radeon_crtc->legacy_cursor_offset +
(yorigin * 256)));
}
radeon_lock_cursor(crtc, false);
return 0;
}
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