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Diffstat (limited to 'linux-core/nv50_lut.c')
-rw-r--r--linux-core/nv50_lut.c193
1 files changed, 0 insertions, 193 deletions
diff --git a/linux-core/nv50_lut.c b/linux-core/nv50_lut.c
deleted file mode 100644
index 7982a926..00000000
--- a/linux-core/nv50_lut.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * 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_lut.h"
-#include "nv50_fb.h"
-#include "nv50_crtc.h"
-#include "nv50_display.h"
-
-static int nv50_lut_alloc(struct nv50_crtc *crtc)
-{
- struct mem_block *block;
- struct drm_file *file_priv = kzalloc(sizeof(struct drm_file), GFP_KERNEL);
- uint32_t flags = NOUVEAU_MEM_FB | NOUVEAU_MEM_MAPPED;
- int rval = 0;
-
- NV50_DEBUG("\n");
-
- if (!file_priv)
- return -ENOMEM;
-
- /* Any file_priv should do as it's pointer is used as identification. */
- block = nouveau_mem_alloc(crtc->dev, 0, 4096, flags, file_priv);
-
- if (!block) {
- rval = -ENOMEM;
- goto out;
- }
-
- crtc->lut->block = block;
-
- return 0;
-
-out:
- if (file_priv)
- kfree(file_priv);
-
- return rval;
-}
-
-static int nv50_lut_free(struct nv50_crtc *crtc)
-{
- struct drm_file *file_priv = crtc->lut->block->file_priv;
-
- NV50_DEBUG("\n");
-
- nouveau_mem_free(crtc->dev, crtc->lut->block);
-
- kfree(file_priv);
-
- return 0;
-}
-
-#define NV50_LUT_INDEX(val, w) ((val << (8 - w)) | (val >> ((w << 1) - 8)))
-static int nv50_lut_set(struct nv50_crtc *crtc, uint16_t *red, uint16_t *green, uint16_t *blue)
-{
- uint32_t index = 0, i;
- struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
- void __iomem *lut = NULL;
-
- NV50_DEBUG("\n");
-
- if (!crtc->lut || !crtc->lut->block) {
- DRM_ERROR("Something wrong with the LUT\n");
- return -EINVAL;
- }
-
- /* 16 bits, red, green, blue, unused, total of 64 bits per index */
- /* maybe switch to ioremap_wc once it becomes available. */
- lut = ioremap(dev_priv->fb_phys + crtc->lut->block->start, crtc->lut->block->size);
- if (!lut) {
- DRM_ERROR("ioremap failed on LUT\n");
- return -EINVAL;
- }
-
- /* 10 bits lut, with 14 bits values. */
- switch (crtc->fb->depth) {
- case 15:
- /* R5G5B5 */
- for (i = 0; i < 32; i++) {
- index = NV50_LUT_INDEX(i, 5);
- writew(red[i] >> 2, lut + 8*index + 0);
- writew(green[i] >> 2, lut + 8*index + 2);
- writew(blue[i] >> 2, lut + 8*index + 4);
- }
- break;
- case 16:
- /* R5G6B5 */
- for (i = 0; i < 32; i++) {
- index = NV50_LUT_INDEX(i, 5);
- writew(red[i] >> 2, lut + 8*index + 0);
- writew(blue[i] >> 2, lut + 8*index + 4);
- }
-
- /* Green has an extra bit. */
- for (i = 0; i < 64; i++) {
- index = NV50_LUT_INDEX(i, 6);
- writew(green[i] >> 2, lut + 8*index + 2);
- }
- break;
- default:
- /* R8G8B8 */
- for (i = 0; i < 256; i++) {
- writew(red[i] >> 2, lut + 8*i + 0);
- writew(green[i] >> 2, lut + 8*i + 2);
- writew(blue[i] >> 2, lut + 8*i + 4);
- }
- break;
- }
-
- crtc->lut->depth = crtc->fb->depth;
-
- /* Cleaning time. */
- iounmap(lut);
-
- return 0;
-}
-
-int nv50_lut_create(struct nv50_crtc *crtc)
-{
- int rval = 0;
-
- NV50_DEBUG("\n");
-
- if (!crtc)
- return -EINVAL;
-
- crtc->lut = kzalloc(sizeof(struct nv50_lut), GFP_KERNEL);
-
- if (!crtc->lut)
- return -ENOMEM;
-
- rval = nv50_lut_alloc(crtc);
- if (rval != 0) {
- goto out;
- }
-
- /* lut will be inited when fb is bound */
- crtc->lut->depth = 0;
-
- /* function pointers */
- crtc->lut->set = nv50_lut_set;
-
- return 0;
-
-out:
- if (crtc->lut)
- kfree(crtc->lut);
-
- return rval;
-}
-
-int nv50_lut_destroy(struct nv50_crtc *crtc)
-{
- int rval = 0;
-
- NV50_DEBUG("\n");
-
- if (!crtc)
- return -EINVAL;
-
- rval = nv50_lut_free(crtc);
-
- kfree(crtc->lut);
- crtc->lut = NULL;
-
- if (rval != 0)
- return rval;
-
- return 0;
-}