include/linux/mmc.old/host.h

   1 /*
   2  *  linux/include/linux/mmc/host.h
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  *  Host driver specific definitions.
   9  */
  10 #ifndef LINUX_MMC_HOST_H
  11 #define LINUX_MMC_HOST_H
  12
  13 #include <linux/mmc/mmc.h>
  14
  15 #if 1   // add by Victor Yu. 11-28-2005
  16 #ifndef _PM_MESSAGE_T
  17 #define _PM_MESSAGE_T
  18 typedef unsigned int    pm_message_t;
  19 #endif  // _PM_MESSAGE_T
  20 #endif
  21
  22 struct mmc_ios {
  23         unsigned int    clock;                  /* clock rate */
  24         unsigned short  vdd;
  25
  26 #define MMC_VDD_150     0
  27 #define MMC_VDD_155     1
  28 #define MMC_VDD_160     2
  29 #define MMC_VDD_165     3
  30 #define MMC_VDD_170     4
  31 #define MMC_VDD_180     5
  32 #define MMC_VDD_190     6
  33 #define MMC_VDD_200     7
  34 #define MMC_VDD_210     8
  35 #define MMC_VDD_220     9
  36 #define MMC_VDD_230     10
  37 #define MMC_VDD_240     11
  38 #define MMC_VDD_250     12
  39 #define MMC_VDD_260     13
  40 #define MMC_VDD_270     14
  41 #define MMC_VDD_280     15
  42 #define MMC_VDD_290     16
  43 #define MMC_VDD_300     17
  44 #define MMC_VDD_310     18
  45 #define MMC_VDD_320     19
  46 #define MMC_VDD_330     20
  47 #define MMC_VDD_340     21
  48 #define MMC_VDD_350     22
  49 #define MMC_VDD_360     23
  50
  51         unsigned char   bus_mode;               /* command output mode */
  52
  53 #define MMC_BUSMODE_OPENDRAIN   1
  54 #define MMC_BUSMODE_PUSHPULL    2
  55
  56         unsigned char   chip_select;            /* SPI chip select */
  57
  58 #define MMC_CS_DONTCARE         0
  59 #define MMC_CS_HIGH             1
  60 #define MMC_CS_LOW              2
  61
  62         unsigned char   power_mode;             /* power supply mode */
  63
  64 #define MMC_POWER_OFF           0
  65 #define MMC_POWER_UP            1
  66 #define MMC_POWER_ON            2
  67
  68         unsigned char   bus_width;              /* data bus width */
  69
  70 #define MMC_BUS_WIDTH_1         0
  71 #define MMC_BUS_WIDTH_4         2
  72 };
  73
  74 struct mmc_host_ops {
  75         void    (*request)(struct mmc_host *host, struct mmc_request *req);
  76         void    (*set_ios)(struct mmc_host *host, struct mmc_ios *ios);
  77         int     (*get_ro)(struct mmc_host *host);
  78 };
  79
  80 struct mmc_card;
  81 struct device;
  82
  83 struct mmc_host {
  84         struct device           *dev;
  85         struct class_device     class_dev;
  86         int                     index;
  87         struct mmc_host_ops     *ops;
  88         unsigned int            f_min;
  89         unsigned int            f_max;
  90         u32                     ocr_avail;
  91
  92         unsigned long           caps;           /* Host capabilities */
  93
  94 #define MMC_CAP_4_BIT_DATA      (1 << 0)        /* Can the host do 4 bit transfers */
  95
  96         /* host specific block data */
  97         unsigned int            max_seg_size;   /* see blk_queue_max_segment_size */
  98         unsigned short          max_hw_segs;    /* see blk_queue_max_hw_segments */
  99         unsigned short          max_phys_segs;  /* see blk_queue_max_phys_segments */
 100         unsigned short          max_sectors;    /* see blk_queue_max_sectors */
 101         unsigned short          unused;
 102
 103         /* private data */
 104         struct mmc_ios          ios;            /* current io bus settings */
 105         u32                     ocr;            /* the current OCR setting */
 106
 107         unsigned int            mode;           /* current card mode of host */
 108 #define MMC_MODE_MMC            0
 109 #define MMC_MODE_SD             1
 110
 111         struct list_head        cards;          /* devices attached to this host */
 112
 113         wait_queue_head_t       wq;
 114         spinlock_t              lock;           /* card_busy lock */
 115         struct mmc_card         *card_busy;     /* the MMC card claiming host */
 116         struct mmc_card         *card_selected; /* the selected MMC card */
 117
 118         struct work_struct      detect;
 119
 120         unsigned long           private[0] ____cacheline_aligned;
 121 };
 122
 123 extern struct mmc_host *mmc_alloc_host(int extra, struct device *);
 124 extern int mmc_add_host(struct mmc_host *);
 125 extern void mmc_remove_host(struct mmc_host *);
 126 extern void mmc_free_host(struct mmc_host *);
 127
 128 static inline void *mmc_priv(struct mmc_host *host)
 129 {
 130         return (void *)host->private;
 131 }
 132
 133 #define mmc_dev(x)      ((x)->dev)
 134 #define mmc_hostname(x) ((x)->class_dev.class_id)
 135
 136 extern int mmc_suspend_host(struct mmc_host *, pm_message_t);
 137 extern int mmc_resume_host(struct mmc_host *);
 138
 139 extern void mmc_detect_change(struct mmc_host *, unsigned long delay);
 140 extern void mmc_request_done(struct mmc_host *, struct mmc_request *);
 141
 142 #endif
 143