linux-imx

/*

 *  linux/drivers/mmc/core/sd.c

 *

 *  Copyright (C) 2003-2004 Russell King, All Rights Reserved.

 *  SD support Copyright (C) 2004 Ian Molton, All Rights Reserved.

 *  Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved.

 *

 * 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.

 */

​

#include <linux/err.h>

#include <linux/sizes.h>

#include <linux/slab.h>

#include <linux/stat.h>

#include <linux/pm_runtime.h>

​

#include <linux/mmc/host.h>

#include <linux/mmc/card.h>

#include <linux/mmc/mmc.h>

#include <linux/mmc/sd.h>

​

#include "core.h"

#include "card.h"

#include "host.h"

#include "bus.h"

#include "mmc_ops.h"

#include "sd.h"

#include "sd_ops.h"

​

static const unsigned int tran_exp[] = {

    10000,      100000,     1000000,    10000000,

    0,      0,      0,      0

};

​

static const unsigned char tran_mant[] = {

    0,  10, 12, 13, 15, 20, 25, 30,

    35, 40, 45, 50, 55, 60, 70, 80,

};

​

static const unsigned int taac_exp[] = {

    1,  10, 100,    1000,   10000,  100000, 1000000, 10000000,

};

​

static const unsigned int taac_mant[] = {

    0,  10, 12, 13, 15, 20, 25, 30,

    35, 40, 45, 50, 55, 60, 70, 80,

};

​

static const unsigned int sd_au_size[] = {

    0,      SZ_16K / 512,       SZ_32K / 512,   SZ_64K / 512,

    SZ_128K / 512,  SZ_256K / 512,      SZ_512K / 512,  SZ_1M / 512,

    SZ_2M / 512,    SZ_4M / 512,        SZ_8M / 512,    (SZ_8M + SZ_4M) / 512,

    SZ_16M / 512,   (SZ_16M + SZ_8M) / 512, SZ_32M / 512,   SZ_64M / 512,

};

​

#define UNSTUFF_BITS(resp,start,size)                   \

    ({                              \

        const int __size = size;                \

        const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1; \

        const int __off = 3 - ((start) / 32);           \

        const int __shft = (start) & 31;            \