| 1 | |
| 2 | * Header for the SUDMAC driver
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| 3 | *
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| 4 | * Copyright (C) 2013 Renesas Solutions Corp.
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| 5 | *
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| 6 | * This is free software; you can redistribute it and/or modify
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| 7 | * it under the terms of version 2 of the GNU General Public License as
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| 8 | * published by the Free Software Foundation.
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| 9 |
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| 10 | #ifndef SUDMAC_H
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| 11 | #define SUDMAC_H
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| 12 |
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| 13 | #include <linux/dmaengine.h>
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| 14 | #include <linux/shdma-base.h>
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| 15 | #include <linux/types.h>
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| 16 |
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| 17 |
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| 18 | struct sudmac_slave {
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| 19 | struct shdma_slave shdma_slave;
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| 20 | };
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| 21 |
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| 22 | |
| 23 | * Supplied by platforms to specify, how a DMA channel has to be configured for
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| 24 | * a certain peripheral
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| 25 |
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| 26 | struct sudmac_slave_config {
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| 27 | int slave_id;
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| 28 | };
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| 29 |
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| 30 | struct sudmac_channel {
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| 31 | unsigned long offset;
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| 32 | unsigned long config;
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| 33 | unsigned long wait;
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| 34 | unsigned long dint_end_bit;
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| 35 | };
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| 36 |
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| 37 | struct sudmac_pdata {
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| 38 | const struct sudmac_slave_config *slave;
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| 39 | int slave_num;
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| 40 | const struct sudmac_channel *channel;
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| 41 | int channel_num;
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| 42 | };
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| 43 |
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| 44 |
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| 45 | #define SUDMAC_TX_BUFFER_MODE BIT(0)
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| 46 | #define SUDMAC_RX_END_MODE BIT(1)
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| 47 |
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| 48 |
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| 49 | #define SUDMAC_DMA_BIT_CH0 BIT(0)
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| 50 | #define SUDMAC_DMA_BIT_CH1 BIT(1)
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| 51 |
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| 52 | #endif
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