pl08x.h

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/*
 * linux/amba/pl08x.h - ARM PrimeCell DMA Controller driver
 *
 * Copyright (C) 2005 ARM Ltd
 * Copyright (C) 2010 ST-Ericsson SA
 *
 * 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.
 *
 * pl08x information required by platform code
 *
 * Please credit ARM.com
 * Documentation: ARM DDI 0196D
 */

#ifndef AMBA_PL08X_H
#define AMBA_PL08X_H

/* We need sizes of structs from this header */
#include <linux/dmaengine.h>
#include <linux/interrupt.h>

struct pl08x_driver_data;
struct pl08x_phy_chan;
struct pl08x_txd;

/* Bitmasks for selecting AHB ports for DMA transfers */
enum {
    PL08X_AHB1 = (1 << 0),
    PL08X_AHB2 = (1 << 1)
};

struct pl08x_channel_data {
    const char *bus_id;
    int min_signal;
    int max_signal;
    u32 muxval;
    u32 cctl_memcpy;
    dma_addr_t addr;
    bool single;
    u8 periph_buses;
};

struct pl08x_platform_data {
    const struct pl08x_channel_data *slave_channels;
    unsigned int num_slave_channels;
    struct pl08x_channel_data memcpy_channel;
    int (*get_signal)(const struct pl08x_channel_data *);
    void (*put_signal)(const struct pl08x_channel_data *, int);
    u8 lli_buses;
    u8 mem_buses;
};

#ifdef CONFIG_AMBA_PL08X
bool pl08x_filter_id(struct dma_chan *chan, void *chan_id);
#else
static inline bool pl08x_filter_id(struct dma_chan *chan, void *chan_id)
{
    return false;
}
#endif

#endif  /* AMBA_PL08X_H */