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      1 /*
      2  * This program is free software; you can redistribute it and/or
      3  * modify it under the terms of the GNU General Public
      4  * License v2 as published by the Free Software Foundation.
      5  *
      6  * This program is distributed in the hope that it will be useful,
      7  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      9  * General Public License for more details.
     10  *
     11  * You should have received a copy of the GNU General Public
     12  * License along with this program; if not, write to the
     13  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
     14  * Boston, MA 021110-1307, USA.
     15  */
     16 
     17 #include <asm-generic/int-ll64.h>
     18 #include <linux/mmc/ioctl.h>
     19 #include <stdio.h>
     20 
     21 #define CHECK(expr, msg, err_stmt) { if (expr) { fprintf(stderr, msg); err_stmt; } }
     22 
     23 #ifndef offsetof
     24 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
     25 #endif
     26 
     27 /* From kernel linux/major.h */
     28 #define MMC_BLOCK_MAJOR			179
     29 
     30 /* From kernel linux/mmc/mmc.h */
     31 #define MMC_SWITCH		6	/* ac	[31:0] See below	R1b */
     32 #define MMC_SEND_EXT_CSD	8	/* adtc				R1  */
     33 #define MMC_SEND_STATUS		13	/* ac   [31:16] RCA        R1  */
     34 #define R1_SWITCH_ERROR   (1 << 7)  /* sx, c */
     35 #define MMC_SWITCH_MODE_WRITE_BYTE	0x03	/* Set target to value */
     36 #define MMC_READ_MULTIPLE_BLOCK  18   /* adtc [31:0] data addr   R1  */
     37 #define MMC_WRITE_MULTIPLE_BLOCK 25   /* adtc                    R1  */
     38 
     39 /*
     40  * EXT_CSD fields
     41  */
     42 #define EXT_CSD_S_CMD_SET		504
     43 #define EXT_CSD_HPI_FEATURE		503
     44 #define EXT_CSD_BKOPS_SUPPORT		502	/* RO */
     45 #define EXT_CSD_CACHE_SIZE_3		252
     46 #define EXT_CSD_CACHE_SIZE_2		251
     47 #define EXT_CSD_CACHE_SIZE_1		250
     48 #define EXT_CSD_CACHE_SIZE_0		249
     49 #define EXT_CSD_BOOT_INFO		228	/* R/W */
     50 #define EXT_CSD_SEC_COUNT_3		215
     51 #define EXT_CSD_SEC_COUNT_2		214
     52 #define EXT_CSD_SEC_COUNT_1		213
     53 #define EXT_CSD_SEC_COUNT_0		212
     54 #define EXT_CSD_PART_SWITCH_TIME	199
     55 #define EXT_CSD_REV			192
     56 #define EXT_CSD_BOOT_CFG		179
     57 #define EXT_CSD_PART_CONFIG		179
     58 #define EXT_CSD_BOOT_BUS_CONDITIONS	177
     59 #define EXT_CSD_ERASE_GROUP_DEF		175
     60 #define EXT_CSD_BOOT_WP			173
     61 #define EXT_CSD_WR_REL_SET		167
     62 #define EXT_CSD_WR_REL_PARAM		166
     63 #define EXT_CSD_SANITIZE_START		165
     64 #define EXT_CSD_BKOPS_EN		163	/* R/W */
     65 #define EXT_CSD_RST_N_FUNCTION		162	/* R/W */
     66 #define EXT_CSD_PARTITIONING_SUPPORT	160	/* RO */
     67 #define EXT_CSD_MAX_ENH_SIZE_MULT_2	159
     68 #define EXT_CSD_MAX_ENH_SIZE_MULT_1	158
     69 #define EXT_CSD_MAX_ENH_SIZE_MULT_0	157
     70 #define EXT_CSD_PARTITIONS_ATTRIBUTE	156	/* R/W */
     71 #define EXT_CSD_PARTITION_SETTING_COMPLETED	155	/* R/W */
     72 #define EXT_CSD_GP_SIZE_MULT_4_2	154
     73 #define EXT_CSD_GP_SIZE_MULT_4_1	153
     74 #define EXT_CSD_GP_SIZE_MULT_4_0	152
     75 #define EXT_CSD_GP_SIZE_MULT_3_2	151
     76 #define EXT_CSD_GP_SIZE_MULT_3_1	150
     77 #define EXT_CSD_GP_SIZE_MULT_3_0	149
     78 #define EXT_CSD_GP_SIZE_MULT_2_2	148
     79 #define EXT_CSD_GP_SIZE_MULT_2_1	147
     80 #define EXT_CSD_GP_SIZE_MULT_2_0	146
     81 #define EXT_CSD_GP_SIZE_MULT_1_2	145
     82 #define EXT_CSD_GP_SIZE_MULT_1_1	144
     83 #define EXT_CSD_GP_SIZE_MULT_1_0	143
     84 #define EXT_CSD_ENH_SIZE_MULT_2		142
     85 #define EXT_CSD_ENH_SIZE_MULT_1		141
     86 #define EXT_CSD_ENH_SIZE_MULT_0		140
     87 #define EXT_CSD_ENH_START_ADDR_3	139
     88 #define EXT_CSD_ENH_START_ADDR_2	138
     89 #define EXT_CSD_ENH_START_ADDR_1	137
     90 #define EXT_CSD_ENH_START_ADDR_0	136
     91 #define EXT_CSD_NATIVE_SECTOR_SIZE	63 /* R */
     92 #define EXT_CSD_USE_NATIVE_SECTOR	62 /* R/W */
     93 #define EXT_CSD_DATA_SECTOR_SIZE	61 /* R */
     94 #define EXT_CSD_EXT_PARTITIONS_ATTRIBUTE_1	53
     95 #define EXT_CSD_EXT_PARTITIONS_ATTRIBUTE_0	52
     96 #define EXT_CSD_CACHE_CTRL		33
     97 
     98 /*
     99  * WR_REL_PARAM field definitions
    100  */
    101 #define HS_CTRL_REL	(1<<0)
    102 #define EN_REL_WR	(1<<2)
    103 
    104 /*
    105  * BKOPS_EN field definition
    106  */
    107 #define BKOPS_ENABLE	(1<<0)
    108 
    109 /*
    110  * EXT_CSD field definitions
    111  */
    112 #define EXT_CSD_HPI_SUPP		(1<<0)
    113 #define EXT_CSD_HPI_IMPL		(1<<1)
    114 #define EXT_CSD_CMD_SET_NORMAL		(1<<0)
    115 #define EXT_CSD_BOOT_WP_B_PWR_WP_DIS	(0x40)
    116 #define EXT_CSD_BOOT_WP_B_PERM_WP_DIS	(0x10)
    117 #define EXT_CSD_BOOT_WP_B_PERM_WP_EN	(0x04)
    118 #define EXT_CSD_BOOT_WP_B_PWR_WP_EN	(0x01)
    119 #define EXT_CSD_BOOT_INFO_HS_MODE	(1<<2)
    120 #define EXT_CSD_BOOT_INFO_DDR_DDR	(1<<1)
    121 #define EXT_CSD_BOOT_INFO_ALT		(1<<0)
    122 #define EXT_CSD_BOOT_CFG_ACK		(1<<6)
    123 #define EXT_CSD_BOOT_CFG_EN		(0x38)
    124 #define EXT_CSD_BOOT_CFG_ACC		(0x07)
    125 #define EXT_CSD_RST_N_EN_MASK		(0x03)
    126 #define EXT_CSD_HW_RESET_EN		(0x01)
    127 #define EXT_CSD_HW_RESET_DIS		(0x02)
    128 #define EXT_CSD_PART_CONFIG_ACC_MASK	  (0x7)
    129 #define EXT_CSD_PART_CONFIG_ACC_BOOT0	  (0x1)
    130 #define EXT_CSD_PART_CONFIG_ACC_BOOT1	  (0x2)
    131 #define EXT_CSD_PART_CONFIG_ACC_USER_AREA (0x7)
    132 #define EXT_CSD_PART_CONFIG_ACC_ACK	  (0x40)
    133 #define EXT_CSD_PARTITIONING_EN		(1<<0)
    134 #define EXT_CSD_ENH_ATTRIBUTE_EN	(1<<1)
    135 #define EXT_CSD_ENH_4			(1<<4)
    136 #define EXT_CSD_ENH_3			(1<<3)
    137 #define EXT_CSD_ENH_2			(1<<2)
    138 #define EXT_CSD_ENH_1			(1<<1)
    139 #define EXT_CSD_ENH_USR			(1<<0)
    140 #define EXT_CSD_REV_V5_1		8
    141 #define EXT_CSD_REV_V5_0		7
    142 #define EXT_CSD_REV_V4_5		6
    143 #define EXT_CSD_REV_V4_4_1		5
    144 #define EXT_CSD_REV_V4_3		3
    145 #define EXT_CSD_REV_V4_2		2
    146 #define EXT_CSD_REV_V4_1		1
    147 #define EXT_CSD_REV_V4_0		0
    148 
    149 
    150 /* From kernel linux/mmc/core.h */
    151 #define MMC_RSP_PRESENT	(1 << 0)
    152 #define MMC_RSP_136	(1 << 1)		/* 136 bit response */
    153 #define MMC_RSP_CRC	(1 << 2)		/* expect valid crc */
    154 #define MMC_RSP_BUSY	(1 << 3)		/* card may send busy */
    155 #define MMC_RSP_OPCODE	(1 << 4)		/* response contains opcode */
    156 
    157 #define MMC_CMD_AC	(0 << 5)
    158 #define MMC_CMD_ADTC	(1 << 5)
    159 
    160 #define MMC_RSP_SPI_S1	(1 << 7)		/* one status byte */
    161 #define MMC_RSP_SPI_BUSY (1 << 10)		/* card may send busy */
    162 
    163 #define MMC_RSP_SPI_R1	(MMC_RSP_SPI_S1)
    164 #define MMC_RSP_SPI_R1B	(MMC_RSP_SPI_S1|MMC_RSP_SPI_BUSY)
    165 
    166 #define MMC_RSP_R1	(MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
    167 #define MMC_RSP_R1B	(MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE|MMC_RSP_BUSY)
    168