linux/drivers/mmc/host/cb710-mmc.h
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   1/*
   2 *  cb710/cb710-mmc.h
   3 *
   4 *  Copyright by Michał Mirosław, 2008-2009
   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#ifndef LINUX_CB710_MMC_H
  11#define LINUX_CB710_MMC_H
  12
  13#include <linux/cb710.h>
  14
  15/* per-MMC-reader structure */
  16struct cb710_mmc_reader {
  17        struct tasklet_struct finish_req_tasklet;
  18        struct mmc_request *mrq;
  19        spinlock_t irq_lock;
  20        unsigned char last_power_mode;
  21};
  22
  23/* some device struct walking */
  24
  25static inline struct mmc_host *cb710_slot_to_mmc(struct cb710_slot *slot)
  26{
  27        return platform_get_drvdata(&slot->pdev);
  28}
  29
  30static inline struct cb710_slot *cb710_mmc_to_slot(struct mmc_host *mmc)
  31{
  32        struct platform_device *pdev = container_of(mmc_dev(mmc),
  33                struct platform_device, dev);
  34        return cb710_pdev_to_slot(pdev);
  35}
  36
  37/* registers (this might be all wrong ;) */
  38
  39#define CB710_MMC_DATA_PORT             0x00
  40
  41#define CB710_MMC_CONFIG_PORT           0x04
  42#define CB710_MMC_CONFIG0_PORT          0x04
  43#define CB710_MMC_CONFIG1_PORT          0x05
  44#define   CB710_MMC_C1_4BIT_DATA_BUS            0x40
  45#define CB710_MMC_CONFIG2_PORT          0x06
  46#define   CB710_MMC_C2_READ_PIO_SIZE_MASK       0x0F    /* N-1 */
  47#define CB710_MMC_CONFIG3_PORT          0x07
  48
  49#define CB710_MMC_CONFIGB_PORT          0x08
  50
  51#define CB710_MMC_IRQ_ENABLE_PORT       0x0C
  52#define   CB710_MMC_IE_TEST_MASK                0x00BF
  53#define   CB710_MMC_IE_CARD_INSERTION_STATUS    0x1000
  54#define   CB710_MMC_IE_IRQ_ENABLE               0x8000
  55#define   CB710_MMC_IE_CISTATUS_MASK            \
  56                (CB710_MMC_IE_CARD_INSERTION_STATUS|CB710_MMC_IE_IRQ_ENABLE)
  57
  58#define CB710_MMC_STATUS_PORT           0x10
  59#define   CB710_MMC_STATUS_ERROR_EVENTS         0x60FF
  60#define CB710_MMC_STATUS0_PORT          0x10
  61#define   CB710_MMC_S0_FIFO_UNDERFLOW           0x40
  62#define CB710_MMC_STATUS1_PORT          0x11
  63#define   CB710_MMC_S1_COMMAND_SENT             0x01
  64#define   CB710_MMC_S1_DATA_TRANSFER_DONE       0x02
  65#define   CB710_MMC_S1_PIO_TRANSFER_DONE        0x04
  66#define   CB710_MMC_S1_CARD_CHANGED             0x10
  67#define   CB710_MMC_S1_RESET                    0x20
  68#define CB710_MMC_STATUS2_PORT          0x12
  69#define   CB710_MMC_S2_FIFO_READY               0x01
  70#define   CB710_MMC_S2_FIFO_EMPTY               0x02
  71#define   CB710_MMC_S2_BUSY_10                  0x10
  72#define   CB710_MMC_S2_BUSY_20                  0x20
  73#define CB710_MMC_STATUS3_PORT          0x13
  74#define   CB710_MMC_S3_CARD_DETECTED            0x02
  75#define   CB710_MMC_S3_WRITE_PROTECTED          0x04
  76
  77#define CB710_MMC_CMD_TYPE_PORT         0x14
  78#define   CB710_MMC_RSP_TYPE_MASK               0x0007
  79#define     CB710_MMC_RSP_R1                    (0)
  80#define     CB710_MMC_RSP_136                   (5)
  81#define     CB710_MMC_RSP_NO_CRC                (2)
  82#define   CB710_MMC_RSP_PRESENT_MASK            0x0018
  83#define     CB710_MMC_RSP_NONE                  (0 << 3)
  84#define     CB710_MMC_RSP_PRESENT               (1 << 3)
  85#define     CB710_MMC_RSP_PRESENT_X             (2 << 3)
  86#define   CB710_MMC_CMD_TYPE_MASK               0x0060
  87#define     CB710_MMC_CMD_BC                    (0 << 5)
  88#define     CB710_MMC_CMD_BCR                   (1 << 5)
  89#define     CB710_MMC_CMD_AC                    (2 << 5)
  90#define     CB710_MMC_CMD_ADTC                  (3 << 5)
  91#define   CB710_MMC_DATA_READ                   0x0080
  92#define   CB710_MMC_CMD_CODE_MASK               0x3F00
  93#define   CB710_MMC_CMD_CODE_SHIFT              8
  94#define   CB710_MMC_IS_APP_CMD                  0x4000
  95#define   CB710_MMC_RSP_BUSY                    0x8000
  96
  97#define CB710_MMC_CMD_PARAM_PORT        0x18
  98#define CB710_MMC_TRANSFER_SIZE_PORT    0x1C
  99#define CB710_MMC_RESPONSE0_PORT        0x20
 100#define CB710_MMC_RESPONSE1_PORT        0x24
 101#define CB710_MMC_RESPONSE2_PORT        0x28
 102#define CB710_MMC_RESPONSE3_PORT        0x2C
 103
 104#endif /* LINUX_CB710_MMC_H */
 105