linux-imx

/*

 * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs

 * Copyright (C) 2013, Intel Corporation

 *

 * 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.

 */

​

#ifndef SPI_PXA2XX_H

#define SPI_PXA2XX_H

​

#include <linux/atomic.h>

#include <linux/dmaengine.h>

#include <linux/errno.h>

#include <linux/io.h>

#include <linux/interrupt.h>

#include <linux/platform_device.h>

#include <linux/pxa2xx_ssp.h>

#include <linux/scatterlist.h>

#include <linux/sizes.h>

#include <linux/spi/spi.h>

#include <linux/spi/pxa2xx_spi.h>

​

struct driver_data {

    /* Driver model hookup */

    struct platform_device *pdev;

​

    /* SSP Info */

    struct ssp_device *ssp;

​

    /* SPI framework hookup */

    enum pxa_ssp_type ssp_type;

    struct spi_controller *controller;

​

    /* PXA hookup */

    struct pxa2xx_spi_controller *controller_info;

​

    /* SSP register addresses */

    void __iomem *ioaddr;

    phys_addr_t ssdr_physical;

​

    /* SSP masks*/

    u32 dma_cr1;

    u32 int_cr1;

    u32 clear_sr;

    u32 mask_sr;

​

    /* DMA engine support */

    atomic_t dma_running;

​

    /* Current transfer state info */

    void *tx;

    void *tx_end;

    void *rx;

    void *rx_end;

    u8 n_bytes;

    int (*write)(struct driver_data *drv_data);

    int (*read)(struct driver_data *drv_data);

    irqreturn_t (*transfer_handler)(struct driver_data *drv_data);

    void (*cs_control)(u32 command);

​

    void __iomem *lpss_base;