diff options
Diffstat (limited to 'linux-core/nv50_lut.c')
| -rw-r--r-- | linux-core/nv50_lut.c | 193 |
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; -} |