diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/dispnv04/overlay.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/dispnv04/overlay.c | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv04/overlay.c b/drivers/gpu/drm/nouveau/dispnv04/overlay.c new file mode 100644 index 00000000000..3618ac6b631 --- /dev/null +++ b/drivers/gpu/drm/nouveau/dispnv04/overlay.c @@ -0,0 +1,320 @@ +/* + * 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_drm.h" + +#include "nouveau_bo.h" +#include "nouveau_connector.h" +#include "nouveau_display.h" +#include "nvreg.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; +}; + +static uint32_t formats[] = { + DRM_FORMAT_NV12, + DRM_FORMAT_UYVY, +}; + +/* 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 nouveau_device *dev = nouveau_dev(plane->dev); + struct nouveau_plane *nv_plane = (struct nouveau_plane *)plane; + 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 format = ALIGN(src_w * 4, 0x100); + int soff = NV_PCRTC0_SIZE * nv_crtc->index; + int soff2 = NV_PCRTC0_SIZE * !nv_crtc->index; + int ret; + + if (format > 0xffff) + return -EINVAL; + + ret = nouveau_bo_pin(nv_fb->nvbo, TTM_PL_FLAG_VRAM); + if (ret) + return ret; + + nv_plane->cur = nv_fb->nvbo; + + /* Source parameters given in 16.16 fixed point, ignore fractional. */ + src_x = src_x >> 16; + src_y = src_y >> 16; + src_w = src_w >> 16; + src_h = src_h >> 16; + + nv_mask(dev, NV_PCRTC_ENGINE_CTRL + soff, NV_CRTC_FSEL_OVERLAY, NV_CRTC_FSEL_OVERLAY); + nv_mask(dev, NV_PCRTC_ENGINE_CTRL + soff2, NV_CRTC_FSEL_OVERLAY, 0); + + nv_wr32(dev, NV_PVIDEO_BASE(flip), 0); + nv_wr32(dev, NV_PVIDEO_OFFSET_BUFF(flip), nv_fb->nvbo->bo.offset); + nv_wr32(dev, NV_PVIDEO_SIZE_IN(flip), src_h << 16 | src_w); + nv_wr32(dev, NV_PVIDEO_POINT_IN(flip), src_y << 16 | src_x); + nv_wr32(dev, NV_PVIDEO_DS_DX(flip), (src_w << 20) / crtc_w); + nv_wr32(dev, NV_PVIDEO_DT_DY(flip), (src_h << 20) / crtc_h); + nv_wr32(dev, NV_PVIDEO_POINT_OUT(flip), crtc_y << 16 | crtc_x); + nv_wr32(dev, NV_PVIDEO_SIZE_OUT(flip), crtc_h << 16 | crtc_w); + + if (fb->pixel_format == DRM_FORMAT_NV12) { + format |= NV_PVIDEO_FORMAT_COLOR_LE_CR8YB8CB8YA8; + 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->pixel_format == DRM_FORMAT_NV12) { + nv_wr32(dev, NV_PVIDEO_UVPLANE_BASE(flip), 0); + nv_wr32(dev, NV_PVIDEO_UVPLANE_OFFSET_BUFF(flip), + nv_fb->nvbo->bo.offset + fb->offsets[1]); + } + nv_wr32(dev, NV_PVIDEO_FORMAT(flip), format); + nv_wr32(dev, NV_PVIDEO_STOP, 0); + /* TODO: wait for vblank? */ + nv_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 nouveau_device *dev = nouveau_dev(plane->dev); + struct nouveau_plane *nv_plane = (struct nouveau_plane *)plane; + + nv_wr32(dev, NV_PVIDEO_STOP, 1); + if (nv_plane->cur) { + nouveau_bo_unpin(nv_plane->cur); + nv_plane->cur = NULL; + } + + return 0; +} + +static void +nv10_destroy_plane(struct drm_plane *plane) +{ + nv10_disable_plane(plane); + drm_plane_cleanup(plane); + kfree(plane); +} + +static void +nv10_set_params(struct nouveau_plane *plane) +{ + struct nouveau_device *dev = nouveau_dev(plane->base.dev); + 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 format = 0; + + nv_wr32(dev, NV_PVIDEO_LUMINANCE(0), luma); + nv_wr32(dev, NV_PVIDEO_LUMINANCE(1), luma); + nv_wr32(dev, NV_PVIDEO_CHROMINANCE(0), chroma); + nv_wr32(dev, NV_PVIDEO_CHROMINANCE(1), chroma); + nv_wr32(dev, NV_PVIDEO_COLOR_KEY, plane->colorkey & 0xffffff); + + if (plane->cur) { + if (plane->iturbt_709) + format |= NV_PVIDEO_FORMAT_MATRIX_ITURBT709; + if (plane->colorkey & (1 << 24)) + format |= NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY; + nv_mask(dev, NV_PVIDEO_FORMAT(plane->flip), + NV_PVIDEO_FORMAT_MATRIX_ITURBT709 | + NV_PVIDEO_FORMAT_DISPLAY_COLOR_KEY, + format); + } +} + +static int +nv10_set_property(struct drm_plane *plane, + struct drm_property *property, + uint64_t value) +{ + struct nouveau_plane *nv_plane = (struct nouveau_plane *)plane; + + if (property == nv_plane->props.colorkey) + nv_plane->colorkey = value; + else if (property == nv_plane->props.contrast) + nv_plane->contrast = value; + else if (property == nv_plane->props.brightness) + nv_plane->brightness = value; + else if (property == nv_plane->props.hue) + nv_plane->hue = value; + else if (property == nv_plane->props.saturation) + nv_plane->saturation = value; + else if (property == nv_plane->props.iturbt_709) + nv_plane->iturbt_709 = value; + else + return -EINVAL; + + nv10_set_params(nv_plane); + return 0; +} + +static const struct drm_plane_funcs nv10_plane_funcs = { + .update_plane = nv10_update_plane, + .disable_plane = nv10_disable_plane, + .set_property = nv10_set_property, + .destroy = nv10_destroy_plane, +}; + +static void +nv10_overlay_init(struct drm_device *device) +{ + struct nouveau_device *dev = nouveau_dev(device); + struct nouveau_plane *plane = kzalloc(sizeof(struct nouveau_plane), GFP_KERNEL); + int ret; + + if (!plane) + return; + + ret = drm_plane_init(device, &plane->base, 3 /* both crtc's */, + &nv10_plane_funcs, + formats, ARRAY_SIZE(formats), false); + if (ret) + goto err; + + /* Set up the plane properties */ + plane->props.colorkey = drm_property_create_range( + device, 0, "colorkey", 0, 0x01ffffff); + plane->props.contrast = drm_property_create_range( + device, 0, "contrast", 0, 8192 - 1); + plane->props.brightness = drm_property_create_range( + device, 0, "brightness", 0, 1024); + plane->props.hue = drm_property_create_range( + device, 0, "hue", 0, 359); + plane->props.saturation = drm_property_create_range( + device, 0, "saturation", 0, 8192 - 1); + plane->props.iturbt_709 = drm_property_create_range( + device, 0, "iturbt_709", 0, 1); + if (!plane->props.colorkey || + !plane->props.contrast || + !plane->props.brightness || + !plane->props.hue || + !plane->props.saturation || + !plane->props.iturbt_709) + goto cleanup; + + plane->colorkey = 0; + drm_object_attach_property(&plane->base.base, + plane->props.colorkey, plane->colorkey); + + plane->contrast = 0x1000; + drm_object_attach_property(&plane->base.base, + plane->props.contrast, plane->contrast); + + plane->brightness = 512; + drm_object_attach_property(&plane->base.base, + plane->props.brightness, plane->brightness); + + plane->hue = 0; + drm_object_attach_property(&plane->base.base, + plane->props.hue, plane->hue); + + plane->saturation = 0x1000; + drm_object_attach_property(&plane->base.base, + plane->props.saturation, plane->saturation); + + plane->iturbt_709 = 0; + drm_object_attach_property(&plane->base.base, + plane->props.iturbt_709, plane->iturbt_709); + + nv10_set_params(plane); + nv_wr32(dev, NV_PVIDEO_STOP, 1); + return; +cleanup: + drm_plane_cleanup(&plane->base); +err: + kfree(plane); + nv_error(dev, "Failed to create plane\n"); +} + +void +nouveau_overlay_init(struct drm_device *device) +{ + struct nouveau_device *dev = nouveau_dev(device); + if (dev->chipset >= 0x10 && dev->chipset <= 0x40) + nv10_overlay_init(device); +} |