55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
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/****************************************************************************
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*
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* Copyright (c) 2014 - 2018 Samsung Electronics Co., Ltd. All rights reserved
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*
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****************************************************************************/
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#ifndef __MIFSMAPPER_H
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#define __MIFSMAPPER_H
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#include <linux/mutex.h>
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struct mifsmapper;
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struct scsc_mif_abs;
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struct mutex;
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int mifsmapper_init(struct mifsmapper *smapper, struct scsc_mif_abs *mif);
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u16 mifsmapper_get_alignment(struct mifsmapper *smapper);
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int mifsmapper_alloc_bank(struct mifsmapper *smapper, bool large_bank, u32 entry_size, u16 *entries);
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int mifsmapper_free_bank(struct mifsmapper *smapper, u8 bank);
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int mifsmapper_get_entries(struct mifsmapper *smapper, u8 bank, u8 num_entries, u8 *entr);
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int mifsmapper_free_entries(struct mifsmapper *smapper, u8 bank, u8 num_entries, u8 *entries);
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void mifsmapper_configure(struct mifsmapper *smapper, u32 granularity);
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int mifsmapper_write_sram(struct mifsmapper *smapper, u8 bank, u8 num_entries, u8 first_entry, dma_addr_t *addr);
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u32 mifsmapper_get_bank_base_address(struct mifsmapper *smapper, u8 bank);
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int mifsmapper_deinit(struct mifsmapper *smapper);
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#define MIFSMAPPER_160 4
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#define MIFSMAPPER_64 7
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#define MIFSMAPPER_NOT_VALID 0
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#define MIFSMAPPER_VALID 1
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struct mifsmapper_bank {
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unsigned long *entries_bm;
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u32 num_entries;
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u32 num_entries_left;
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u32 mem_range_bytes;
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u8 phy_index;
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u32 granularity;
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bool in_use;
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};
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/* Inclusion in core.c treat it as opaque */
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struct mifsmapper {
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bool in_use;
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spinlock_t lock;
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struct scsc_mif_abs *mif;
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struct mifsmapper_bank *bank; /* Bank reference created after reading HW capabilities */
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unsigned long *bank_bm_large;
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unsigned long *bank_bm_small;
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u32 num_large_banks;
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u32 num_small_banks;
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u16 align;
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};
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#endif
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