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6a9c6f6812
This patch is needed in preparation to add MFC V8 where the register offsets are changed w.r.t MFC V6/V7. This patch adds variants of MFC V6 and V7 while accessing MFC registers. Registers are kept in mfc context and are initialized to a particular MFC variant during probe, which is used instead of macros. This avoids duplication of the code for MFC variants V6 & V7, and reduces the if_else checks while accessing registers of different MFC variants. Signed-off-by: Kiran AVND <avnd.kiran@samsung.com> Signed-off-by: Pawel Osciak <posciak@chromium.org> Signed-off-by: Arun Kumar K <arun.kk@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/*
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* drivers/media/platform/s5p-mfc/s5p_mfc_opr.c
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*
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* Samsung MFC (Multi Function Codec - FIMV) driver
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* This file contains hw related functions.
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*
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* Kamil Debski, Copyright (c) 2012 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include "s5p_mfc_debug.h"
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#include "s5p_mfc_opr.h"
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#include "s5p_mfc_opr_v5.h"
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#include "s5p_mfc_opr_v6.h"
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static struct s5p_mfc_hw_ops *s5p_mfc_ops;
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void s5p_mfc_init_hw_ops(struct s5p_mfc_dev *dev)
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{
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if (IS_MFCV6_PLUS(dev)) {
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s5p_mfc_ops = s5p_mfc_init_hw_ops_v6();
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dev->warn_start = S5P_FIMV_ERR_WARNINGS_START_V6;
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} else {
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s5p_mfc_ops = s5p_mfc_init_hw_ops_v5();
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dev->warn_start = S5P_FIMV_ERR_WARNINGS_START;
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}
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dev->mfc_ops = s5p_mfc_ops;
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}
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void s5p_mfc_init_regs(struct s5p_mfc_dev *dev)
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{
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if (IS_MFCV6_PLUS(dev))
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dev->mfc_regs = s5p_mfc_init_regs_v6_plus(dev);
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}
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int s5p_mfc_alloc_priv_buf(struct device *dev,
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struct s5p_mfc_priv_buf *b)
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{
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mfc_debug(3, "Allocating priv: %d\n", b->size);
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b->virt = dma_alloc_coherent(dev, b->size, &b->dma, GFP_KERNEL);
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if (!b->virt) {
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mfc_err("Allocating private buffer failed\n");
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return -ENOMEM;
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}
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mfc_debug(3, "Allocated addr %p %08x\n", b->virt, b->dma);
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return 0;
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}
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void s5p_mfc_release_priv_buf(struct device *dev,
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struct s5p_mfc_priv_buf *b)
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{
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if (b->virt) {
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dma_free_coherent(dev, b->size, b->virt, b->dma);
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b->virt = NULL;
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b->dma = 0;
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b->size = 0;
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}
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}
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