/*
|
* drivers/media/platform/s5p-mfc/s5p_mfc_opr.c
|
*
|
* Samsung MFC (Multi Function Codec - FIMV) driver
|
* This file contains hw related functions.
|
*
|
* Kamil Debski, Copyright (c) 2012 Samsung Electronics Co., Ltd.
|
* http://www.samsung.com/
|
*
|
* This program is free software; you can redistribute it and/or modify
|
* it under the terms of the GNU General Public License version 2 as
|
* published by the Free Software Foundation.
|
*/
|
|
#include "s5p_mfc_debug.h"
|
#include "s5p_mfc_opr.h"
|
#include "s5p_mfc_opr_v5.h"
|
#include "s5p_mfc_opr_v6.h"
|
|
static struct s5p_mfc_hw_ops *s5p_mfc_ops;
|
|
void s5p_mfc_init_hw_ops(struct s5p_mfc_dev *dev)
|
{
|
if (IS_MFCV6_PLUS(dev)) {
|
s5p_mfc_ops = s5p_mfc_init_hw_ops_v6();
|
dev->warn_start = S5P_FIMV_ERR_WARNINGS_START_V6;
|
} else {
|
s5p_mfc_ops = s5p_mfc_init_hw_ops_v5();
|
dev->warn_start = S5P_FIMV_ERR_WARNINGS_START;
|
}
|
dev->mfc_ops = s5p_mfc_ops;
|
}
|
|
void s5p_mfc_init_regs(struct s5p_mfc_dev *dev)
|
{
|
if (IS_MFCV6_PLUS(dev))
|
dev->mfc_regs = s5p_mfc_init_regs_v6_plus(dev);
|
}
|
|
int s5p_mfc_alloc_priv_buf(struct device *dev, dma_addr_t base,
|
struct s5p_mfc_priv_buf *b)
|
{
|
mfc_debug(3, "Allocating priv: %zu\n", b->size);
|
|
b->virt = dma_alloc_coherent(dev, b->size, &b->dma, GFP_KERNEL);
|
|
if (!b->virt) {
|
mfc_err("Allocating private buffer failed\n");
|
return -ENOMEM;
|
}
|
|
if (b->dma < base) {
|
mfc_err("Invaling memory configuration!\n");
|
mfc_err("Allocated buffer (%pad) is lower than memory base address (%pad)\n",
|
&b->dma, &base);
|
dma_free_coherent(dev, b->size, b->virt, b->dma);
|
return -ENOMEM;
|
}
|
|
mfc_debug(3, "Allocated addr %p %pad\n", b->virt, &b->dma);
|
return 0;
|
}
|
|
void s5p_mfc_release_priv_buf(struct device *dev,
|
struct s5p_mfc_priv_buf *b)
|
{
|
if (b->virt) {
|
dma_free_coherent(dev, b->size, b->virt, b->dma);
|
b->virt = NULL;
|
b->dma = 0;
|
b->size = 0;
|
}
|
}
|
