diff options
Diffstat (limited to 'drivers/media/platform/s5p-mfc/s5p_mfc_opr.c')
| -rw-r--r-- | drivers/media/platform/s5p-mfc/s5p_mfc_opr.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c b/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c new file mode 100644 index 0000000..10f8ac3 --- /dev/null +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c @@ -0,0 +1,61 @@ +/* + * 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(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; +} + +int s5p_mfc_alloc_priv_buf(struct device *dev, + struct s5p_mfc_priv_buf *b) +{ + + mfc_debug(3, "Allocating priv: %d\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; + } + + mfc_debug(3, "Allocated addr %p %08x\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; + } +} + |