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   1 /*
   2  *  tifm.h - TI FlashMedia driver
   3  *
   4  *  Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  */
  11
  12 #ifndef _TIFM_H
  13 #define _TIFM_H
  14
  15 #include <linux/spinlock.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/delay.h>
  18 #include <linux/pci.h>
  19 #include <linux/workqueue.h>
  20
  21 /* Host registers (relative to pci base address): */
  22 enum {
  23         FM_SET_INTERRUPT_ENABLE   = 0x008,
  24         FM_CLEAR_INTERRUPT_ENABLE = 0x00c,
  25         FM_INTERRUPT_STATUS       = 0x014
  26 };
  27
  28 /* Socket registers (relative to socket base address): */
  29 enum {
  30         SOCK_CONTROL                   = 0x004,
  31         SOCK_PRESENT_STATE             = 0x008,
  32         SOCK_DMA_ADDRESS               = 0x00c,
  33         SOCK_DMA_CONTROL               = 0x010,
  34         SOCK_DMA_FIFO_INT_ENABLE_SET   = 0x014,
  35         SOCK_DMA_FIFO_INT_ENABLE_CLEAR = 0x018,
  36         SOCK_DMA_FIFO_STATUS           = 0x020,
  37         SOCK_FIFO_CONTROL              = 0x024,
  38         SOCK_FIFO_PAGE_SIZE            = 0x028,
  39         SOCK_MMCSD_COMMAND             = 0x104,
  40         SOCK_MMCSD_ARG_LOW             = 0x108,
  41         SOCK_MMCSD_ARG_HIGH            = 0x10c,
  42         SOCK_MMCSD_CONFIG              = 0x110,
  43         SOCK_MMCSD_STATUS              = 0x114,
  44         SOCK_MMCSD_INT_ENABLE          = 0x118,
  45         SOCK_MMCSD_COMMAND_TO          = 0x11c,
  46         SOCK_MMCSD_DATA_TO             = 0x120,
  47         SOCK_MMCSD_DATA                = 0x124,
  48         SOCK_MMCSD_BLOCK_LEN           = 0x128,
  49         SOCK_MMCSD_NUM_BLOCKS          = 0x12c,
  50         SOCK_MMCSD_BUFFER_CONFIG       = 0x130,
  51         SOCK_MMCSD_SPI_CONFIG          = 0x134,
  52         SOCK_MMCSD_SDIO_MODE_CONFIG    = 0x138,
  53         SOCK_MMCSD_RESPONSE            = 0x144,
  54         SOCK_MMCSD_SDIO_SR             = 0x164,
  55         SOCK_MMCSD_SYSTEM_CONTROL      = 0x168,
  56         SOCK_MMCSD_SYSTEM_STATUS       = 0x16c,
  57         SOCK_MS_COMMAND                = 0x184,
  58         SOCK_MS_DATA                   = 0x188,
  59         SOCK_MS_STATUS                 = 0x18c,
  60         SOCK_MS_SYSTEM                 = 0x190,
  61         SOCK_FIFO_ACCESS               = 0x200
  62 };
  63
  64 #define TIFM_CTRL_LED             0x00000040
  65 #define TIFM_CTRL_FAST_CLK        0x00000100
  66
  67 #define TIFM_SOCK_STATE_OCCUPIED  0x00000008
  68 #define TIFM_SOCK_STATE_POWERED   0x00000080
  69
  70 #define TIFM_FIFO_ENABLE          0x00000001
  71 #define TIFM_FIFO_READY           0x00000001
  72 #define TIFM_FIFO_INT_SETALL      0x0000ffff
  73 #define TIFM_FIFO_INTMASK         0x00000005
  74
  75 #define TIFM_DMA_RESET            0x00000002
  76 #define TIFM_DMA_TX               0x00008000
  77 #define TIFM_DMA_EN               0x00000001
  78 #define TIFM_DMA_TSIZE            0x0000007f
  79
  80 #define TIFM_TYPE_XD 1
  81 #define TIFM_TYPE_MS 2
  82 #define TIFM_TYPE_SD 3
  83
  84 struct tifm_device_id {
  85         unsigned char type;
  86 };
  87
  88 struct tifm_driver;
  89 struct tifm_dev {
  90         char __iomem  *addr;
  91         spinlock_t    lock;
  92         unsigned char type;
  93         unsigned int  socket_id;
  94
  95         void          (*card_event)(struct tifm_dev *sock);
  96         void          (*data_event)(struct tifm_dev *sock);
  97
  98         struct device dev;
  99 };
 100
 101 struct tifm_driver {
 102         struct tifm_device_id *id_table;
 103         int                   (*probe)(struct tifm_dev *dev);
 104         void                  (*remove)(struct tifm_dev *dev);
 105         int                   (*suspend)(struct tifm_dev *dev,
 106                                          pm_message_t state);
 107         int                   (*resume)(struct tifm_dev *dev);
 108
 109         struct device_driver  driver;
 110 };
 111
 112 struct tifm_adapter {
 113         char __iomem        *addr;
 114         spinlock_t          lock;
 115         unsigned int        irq_status;
 116         unsigned int        socket_change_set;
 117         unsigned int        id;
 118         unsigned int        num_sockets;
 119         struct completion   *finish_me;
 120
 121         struct work_struct  media_switcher;
 122         struct class_device cdev;
 123
 124         void                (*eject)(struct tifm_adapter *fm,
 125                                      struct tifm_dev *sock);
 126
 127         struct tifm_dev     *sockets[0];
 128 };
 129
 130 struct tifm_adapter *tifm_alloc_adapter(unsigned int num_sockets,
 131                                         struct device *dev);
 132 int tifm_add_adapter(struct tifm_adapter *fm);
 133 void tifm_remove_adapter(struct tifm_adapter *fm);
 134 void tifm_free_adapter(struct tifm_adapter *fm);
 135
 136 void tifm_free_device(struct device *dev);
 137 struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id,
 138                                    unsigned char type);
 139
 140 int tifm_register_driver(struct tifm_driver *drv);
 141 void tifm_unregister_driver(struct tifm_driver *drv);
 142 void tifm_eject(struct tifm_dev *sock);
 143 int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
 144                 int direction);
 145 void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
 146                    int direction);
 147 void tifm_queue_work(struct work_struct *work);
 148
 149 static inline void *tifm_get_drvdata(struct tifm_dev *dev)
 150 {
 151         return dev_get_drvdata(&dev->dev);
 152 }
 153
 154 static inline void tifm_set_drvdata(struct tifm_dev *dev, void *data)
 155 {
 156         dev_set_drvdata(&dev->dev, data);
 157 }
 158
 159 #endif