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kernel/linux-imx6_3.14.28/include/linux/tifm.h 4.8 KB
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  /*
   *  tifm.h - TI FlashMedia driver
   *
   *  Copyright (C) 2006 Alex Dubov <oakad@yahoo.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.
   *
   */
  
  #ifndef _TIFM_H
  #define _TIFM_H
  
  #include <linux/spinlock.h>
  #include <linux/interrupt.h>
  #include <linux/delay.h>
  #include <linux/pci.h>
  #include <linux/workqueue.h>
  
  /* Host registers (relative to pci base address): */
  enum {
  	FM_SET_INTERRUPT_ENABLE   = 0x008,
  	FM_CLEAR_INTERRUPT_ENABLE = 0x00c,
  	FM_INTERRUPT_STATUS       = 0x014
  };
  
  /* Socket registers (relative to socket base address): */
  enum {
  	SOCK_CONTROL                   = 0x004,
  	SOCK_PRESENT_STATE             = 0x008,
  	SOCK_DMA_ADDRESS               = 0x00c,
  	SOCK_DMA_CONTROL               = 0x010,
  	SOCK_DMA_FIFO_INT_ENABLE_SET   = 0x014,
  	SOCK_DMA_FIFO_INT_ENABLE_CLEAR = 0x018,
  	SOCK_DMA_FIFO_STATUS           = 0x020,
  	SOCK_FIFO_CONTROL              = 0x024,
  	SOCK_FIFO_PAGE_SIZE            = 0x028,
  	SOCK_MMCSD_COMMAND             = 0x104,
  	SOCK_MMCSD_ARG_LOW             = 0x108,
  	SOCK_MMCSD_ARG_HIGH            = 0x10c,
  	SOCK_MMCSD_CONFIG              = 0x110,
  	SOCK_MMCSD_STATUS              = 0x114,
  	SOCK_MMCSD_INT_ENABLE          = 0x118,
  	SOCK_MMCSD_COMMAND_TO          = 0x11c,
  	SOCK_MMCSD_DATA_TO             = 0x120,
  	SOCK_MMCSD_DATA                = 0x124,
  	SOCK_MMCSD_BLOCK_LEN           = 0x128,
  	SOCK_MMCSD_NUM_BLOCKS          = 0x12c,
  	SOCK_MMCSD_BUFFER_CONFIG       = 0x130,
  	SOCK_MMCSD_SPI_CONFIG          = 0x134,
  	SOCK_MMCSD_SDIO_MODE_CONFIG    = 0x138,
  	SOCK_MMCSD_RESPONSE            = 0x144,
  	SOCK_MMCSD_SDIO_SR             = 0x164,
  	SOCK_MMCSD_SYSTEM_CONTROL      = 0x168,
  	SOCK_MMCSD_SYSTEM_STATUS       = 0x16c,
  	SOCK_MS_COMMAND                = 0x184,
  	SOCK_MS_DATA                   = 0x188,
  	SOCK_MS_STATUS                 = 0x18c,
  	SOCK_MS_SYSTEM                 = 0x190,
  	SOCK_FIFO_ACCESS               = 0x200
  };
  
  #define TIFM_CTRL_LED             0x00000040
  #define TIFM_CTRL_FAST_CLK        0x00000100
  #define TIFM_CTRL_POWER_MASK      0x00000007
  
  #define TIFM_SOCK_STATE_OCCUPIED  0x00000008
  #define TIFM_SOCK_STATE_POWERED   0x00000080
  
  #define TIFM_FIFO_ENABLE          0x00000001
  #define TIFM_FIFO_READY           0x00000001
  #define TIFM_FIFO_MORE            0x00000008
  #define TIFM_FIFO_INT_SETALL      0x0000ffff
  #define TIFM_FIFO_INTMASK         0x00000005
  
  #define TIFM_DMA_RESET            0x00000002
  #define TIFM_DMA_TX               0x00008000
  #define TIFM_DMA_EN               0x00000001
  #define TIFM_DMA_TSIZE            0x0000007f
  
  #define TIFM_TYPE_XD 1
  #define TIFM_TYPE_MS 2
  #define TIFM_TYPE_SD 3
  
  struct tifm_device_id {
  	unsigned char type;
  };
  
  struct tifm_driver;
  struct tifm_dev {
  	char __iomem  *addr;
  	spinlock_t    lock;
  	unsigned char type;
  	unsigned int  socket_id;
  
  	void          (*card_event)(struct tifm_dev *sock);
  	void          (*data_event)(struct tifm_dev *sock);
  
  	struct device dev;
  };
  
  struct tifm_driver {
  	struct tifm_device_id *id_table;
  	int                   (*probe)(struct tifm_dev *dev);
  	void                  (*remove)(struct tifm_dev *dev);
  	int                   (*suspend)(struct tifm_dev *dev,
  					 pm_message_t state);
  	int                   (*resume)(struct tifm_dev *dev);
  
  	struct device_driver  driver;
  };
  
  struct tifm_adapter {
  	char __iomem        *addr;
  	spinlock_t          lock;
  	unsigned int        irq_status;
  	unsigned int        socket_change_set;
  	unsigned int        id;
  	unsigned int        num_sockets;
  	struct completion   *finish_me;
  
  	struct work_struct  media_switcher;
  	struct device	    dev;
  
  	void                (*eject)(struct tifm_adapter *fm,
  				     struct tifm_dev *sock);
  	int                 (*has_ms_pif)(struct tifm_adapter *fm,
  					  struct tifm_dev *sock);
  
  	struct tifm_dev     *sockets[0];
  };
  
  struct tifm_adapter *tifm_alloc_adapter(unsigned int num_sockets,
  					struct device *dev);
  int tifm_add_adapter(struct tifm_adapter *fm);
  void tifm_remove_adapter(struct tifm_adapter *fm);
  void tifm_free_adapter(struct tifm_adapter *fm);
  
  void tifm_free_device(struct device *dev);
  struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id,
  				   unsigned char type);
  
  int tifm_register_driver(struct tifm_driver *drv);
  void tifm_unregister_driver(struct tifm_driver *drv);
  void tifm_eject(struct tifm_dev *sock);
  int tifm_has_ms_pif(struct tifm_dev *sock);
  int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
  		int direction);
  void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
  		   int direction);
  void tifm_queue_work(struct work_struct *work);
  
  static inline void *tifm_get_drvdata(struct tifm_dev *dev)
  {
  	return dev_get_drvdata(&dev->dev);
  }
  
  static inline void tifm_set_drvdata(struct tifm_dev *dev, void *data)
  {
  	dev_set_drvdata(&dev->dev, data);
  }
  
  #endif