drivers/mmc/host/s3cmci.h

   1 /*
   2  *  linux/drivers/mmc/s3cmci.h - Samsung S3C MCI driver
   3  *
   4  *  Copyright (C) 2004-2006 Thomas Kleffel, All Rights Reserved.
   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 /* FIXME: DMA Resource management ?! */
  12 #define S3CMCI_DMA 0
  13
  14 enum s3cmci_waitfor {
  15         COMPLETION_NONE,
  16         COMPLETION_FINALIZE,
  17         COMPLETION_CMDSENT,
  18         COMPLETION_RSPFIN,
  19         COMPLETION_XFERFINISH,
  20         COMPLETION_XFERFINISH_RSPFIN,
  21 };
  22
  23 struct s3cmci_host {
  24         struct platform_device  *pdev;
  25         struct s3c24xx_mci_pdata *pdata;
  26         struct mmc_host         *mmc;
  27         struct resource         *mem;
  28         struct clk              *clk;
  29         void __iomem            *base;
  30         int                     irq;
  31         int                     irq_cd;
  32         int                     dma;
  33
  34         unsigned long           clk_rate;
  35         unsigned long           clk_div;
  36         unsigned long           real_rate;
  37         u8                      prescaler;
  38
  39         int                     is2440;
  40         unsigned                sdiimsk;
  41         unsigned                sdidata;
  42         int                     dodma;
  43         int                     dmatogo;
  44
  45         struct mmc_request      *mrq;
  46         int                     cmd_is_stop;
  47
  48         spinlock_t              complete_lock;
  49         enum s3cmci_waitfor     complete_what;
  50
  51         int                     dma_complete;
  52
  53         u32                     pio_sgptr;
  54         u32                     pio_bytes;
  55         u32                     pio_count;
  56         u32                     *pio_ptr;
  57 #define XFER_NONE 0
  58 #define XFER_READ 1
  59 #define XFER_WRITE 2
  60         u32                     pio_active;
  61
  62         int                     bus_width;
  63
  64         char                    dbgmsg_cmd[301];
  65         char                    dbgmsg_dat[301];
  66         char                    *status;
  67
  68         unsigned int            ccnt, dcnt;
  69         struct tasklet_struct   pio_tasklet;
  70
  71 #ifdef CONFIG_CPU_FREQ
  72         struct notifier_block   freq_transition;
  73 #endif
  74 };