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|
/*
* Copyright 2013 Ilia Mirkin
*
* 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 AUTHORS 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.
*
* Implementation based on the pre-KMS implementation in xf86-video-nouveau,
* written by Arthur Huillet.
*/
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_fourcc.h>
#include "nouveau_drv.h"
#include "nouveau_bo.h"
#include "nouveau_connector.h"
#include "nouveau_display.h"
#include "nvreg.h"
#include "disp.h"
struct nouveau_plane {
struct drm_plane base;
bool flip;
struct nouveau_bo *cur;
struct {
struct drm_property *colorkey;
struct drm_property *contrast;
struct drm_property *brightness;
struct drm_property *hue;
struct drm_property *saturation;
struct drm_property *iturbt_709;
} props;
int colorkey;
int contrast;
int brightness;
int hue;
int saturation;
int iturbt_709;
void (*set_params)(struct nouveau_plane *);
};
static uint32_t formats[] = {
DRM_FORMAT_YUYV,
DRM_FORMAT_UYVY,
DRM_FORMAT_NV12,
};
/* Sine can be approximated with
* http://en.wikipedia.org/wiki/Bhaskara_I's_sine_approximation_formula
* sin(x degrees) ~= 4 x (180 - x) / (40500 - x (180 - x) )
* Note that this only works for the range [0, 180].
* Also note that sin(x) == -sin(x - 180)
*/
static inline int
sin_mul(int degrees, int factor)
{
if (degrees > 180) {
degrees -= 180;
factor *= -1;
}
return factor * 4 * degrees * (180 - degrees) /
(40500 - degrees * (180 - degrees));
}
/* cos(x) = sin(x + 90) */
static inline int
cos_mul(int degrees, int factor)
{
return sin_mul((degrees + 90) % 360, factor);
}
static int
nv10_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
struct drm_framebuffer *fb, int crtc_x, int crtc_y,
unsigned int crtc_w, unsigned int crtc_h,
uint32_t src_x, uint32_t src_y,
uint32_t src_w, uint32_t src_h,
struct drm_modeset_acquire_ctx *ctx)
{
struct nouveau_drm *drm = nouveau_drm(plane->dev);
struct nvif_object *dev = &drm->client.device.object;
struct nouveau_plane *nv_plane =
container_of(plane, struct nouveau_plane, base);
struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
struct nouveau_bo *cur = nv_plane->cur;
bool flip = nv_plane->flip;
int soff = NV_PCRTC0_SIZE * nv_crtc->index;
int soff2 = NV_PCRTC0_SIZE * !nv_crtc->index;
int format, ret;
/* Source parameters given in 16.16 fixed point, ignore fractional. */
src_x >>= 16;
src_y >>= 16;
src_w >>= 16;
src_h >>= 16;
format = ALIGN(src_w * 4, 0x100);
if (format > 0xffff)
return -ERANGE;
if (drm->client.device.info.chipset >= 0x30) {
if (crtc_w < (src_w >> 1) || crtc_h < (src_h >> 1))
return -ERANGE;
} else {
if (crtc_w < (src_w >> 3) || crtc_h < (src_h >> 3))
return -ERANGE;
}
ret = nouveau_bo_pin(nv_fb->nvbo, TTM_PL_FLAG_VRAM, false);
if (ret)
return ret;
nv_plane->cur = nv_fb->nvbo;
nvif_mask(dev, NV_PCRTC_ENGINE_CTRL + soff, NV_CRTC_FSEL_OVERLAY, NV_CRTC_FSEL_OVERLAY);
nvif_mask(dev, NV_PCRTC_ENGINE_CTRL + soff2, NV_CRTC_FSEL_OVERLAY, 0);
nvif_wr32(dev, NV_PVIDEO_BASE(flip), 0);
nvif_wr32(dev, NV_PVIDEO_OFFSET_BUFF(flip), nv_fb->nvbo->bo.offset);
nvif_wr32(dev, NV_PVIDEO_SIZE_IN(flip), src_h << 16 | src_w);
nvif_wr32(dev, NV_PVIDEO_POINT_IN(flip), src_y << 16 | src_x);
nvif_wr32(dev, NV_PVIDEO_DS_DX(flip), (src_w << 20) / crtc_w);
nvif_wr32(dev, NV_PVIDEO_DT_DY(flip), (src_h << 20) / crtc_h);
nvif_wr32(dev, NV_PVIDEO_POINT_OUT(flip), crtc_y << 16 | crtc_x);
nvif_wr32(dev, NV_PVIDEO_SIZE_OUT(flip), crtc_h << 16 | crtc_w);
if (fb->format->format != DRM_FORMAT_UYVY)
format |= NV_PVIDEO_FORMAT_COLOR_LE_CR8YB8CB8YA8;
if (fb->format->format == DRM_FORMAT_NV12)
format |= NV_PVIDEO_FORMAT_PLANAR;
if (nv_plane->iturbt_709)
format |= NV_PVIDEO_FORMAT_MATRIX_ITURBT709;
if (nv_plane->colorkey & (1 << 24))
format |= NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY;
if (fb->format->format == DRM_FORMAT_NV12) {
nvif_wr32(dev, NV_PVIDEO_UVPLANE_BASE(flip), 0);
nvif_wr32(dev, NV_PVIDEO_UVPLANE_OFFSET_BUFF(flip),
nv_fb->nvbo->bo.offset + fb->offsets[1]);
}
nvif_wr32(dev, NV_PVIDEO_FORMAT(flip), format);
nvif_wr32(dev, NV_PVIDEO_STOP, 0);
/* TODO: wait for vblank? */
nvif_wr32(dev, NV_PVIDEO_BUFFER, flip ? 0x10 : 0x1);
nv_plane->flip = !flip;
if (cur)
nouveau_bo_unpin(cur);
return 0;
}
static int
nv10_disable_plane(struct drm_plane *plane)
{
struct nvif_object *dev = &nouveau_drm(plane->dev)->client.device.object;
struct nouveau_plane *nv_plane =
container_of(plane, struct nouveau_plane, base);
nvif_wr32(dev, NV_PVIDEO_STOP, 1);
if (nv_plane->cur) {
nouveau_bo_unpin(nv_plane->cur);
nv_plane->cur = NULL;
}
return 0;
}
static void
nv_destroy_plane(struct drm_plane *plane)
{
plane->funcs->disable_plane(plane);
drm_plane_cleanup(plane);
kfree(plane);
}
static void
nv10_set_params(struct nouveau_plane *plane)
{
struct nvif_object *dev = &nouveau_drm(plane->base.dev)->client.device.object;
u32 luma = (plane->brightness - 512) << 16 | plane->contrast;
u32 chroma = ((sin_mul(plane->hue, plane->saturation) & 0xffff) << 16) |
(cos_mul(plane->hue, plane->saturation) & 0xffff);
u32
|