/*
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* Allwinner SoCs grallocator.
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*
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* Copyright (C) 2017 Allwinner.
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <common.h>
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#include <malloc.h>
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#include <grallocator.h>
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int graphic_buffer_alloc(unsigned int w, unsigned h, unsigned int bpp,
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int usage, void **handle, unsigned int *stride)
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{
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unsigned int size;
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void *addr = NULL;
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if (!w || !h)
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w = h = 1;
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*stride = DO_ALIGN(w * bpp >> 3, GR_ALIGN_BYTE);
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size = *stride * h;
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if (GRALLOC_USAGE_HW_FB & usage) {
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/* only for FB_ID_0 */
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#if !defined(HW_FB_ADDR)
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DECLARE_GLOBAL_DATA_PTR;
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printf("size=0x%x, ram_size=0x%lx, FRAME_BUFFER_SIZE=0x%x\n",
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size, gd->ram_size, SUNXI_DISPLAY_FRAME_BUFFER_SIZE);
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if ((size < gd->ram_size)
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&& (size <= SUNXI_DISPLAY_FRAME_BUFFER_SIZE))
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addr = (void *)(CONFIG_SYS_SDRAM_BASE + gd->ram_size
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- SUNXI_DISPLAY_FRAME_BUFFER_SIZE);
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#else
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printf("HW_FB_ADDR=0x%x\n", HW_FB_ADDR);
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addr = (void *)HW_FB_ADDR;
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#endif
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} else {
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addr = (void *)memalign(CONFIG_SYS_CACHELINE_SIZE, size);
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}
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if (NULL != addr) {
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*handle = addr;
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return 0;
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} else {
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printf("%s: failed\n", __func__);
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return -1;
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}
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}
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int graphic_buffer_free(void *handle, int usage)
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{
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if (!(GRALLOC_USAGE_HW_FB & usage)) {
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free(handle);
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}
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return 0;
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}
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