diff options
Diffstat (limited to 'include/uapi/linux/mmc')
| -rw-r--r-- | include/uapi/linux/mmc/Kbuild | 2 | ||||
| -rw-r--r-- | include/uapi/linux/mmc/core.h | 36 | ||||
| -rw-r--r-- | include/uapi/linux/mmc/ioctl.h | 55 | ||||
| -rw-r--r-- | include/uapi/linux/mmc/mmc.h | 68 |
4 files changed, 159 insertions, 2 deletions
diff --git a/include/uapi/linux/mmc/Kbuild b/include/uapi/linux/mmc/Kbuild deleted file mode 100644 index 8c1d2cb75e33..000000000000 --- a/include/uapi/linux/mmc/Kbuild +++ /dev/null @@ -1,2 +0,0 @@ -# UAPI Header export list -header-y += ioctl.h diff --git a/include/uapi/linux/mmc/core.h b/include/uapi/linux/mmc/core.h new file mode 100644 index 000000000000..04bf74142312 --- /dev/null +++ b/include/uapi/linux/mmc/core.h @@ -0,0 +1,36 @@ +#ifndef UAPI_MMC_CORE_H +#define UAPI_MMC_CORE_H + +#define MMC_RSP_PRESENT (1 << 0) +#define MMC_RSP_136 (1 << 1) /* 136 bit response */ +#define MMC_RSP_CRC (1 << 2) /* expect valid crc */ +#define MMC_RSP_BUSY (1 << 3) /* card may send busy */ +#define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */ + +#define MMC_CMD_MASK (3 << 5) /* non-SPI command type */ +#define MMC_CMD_AC (0 << 5) +#define MMC_CMD_ADTC (1 << 5) +#define MMC_CMD_BC (2 << 5) +#define MMC_CMD_BCR (3 << 5) + +#define MMC_RSP_SPI_S1 (1 << 7) /* one status byte */ +#define MMC_RSP_SPI_S2 (1 << 8) /* second byte */ +#define MMC_RSP_SPI_B4 (1 << 9) /* four data bytes */ +#define MMC_RSP_SPI_BUSY (1 << 10) /* card may send busy */ + +/* + * These are the native response types, and correspond to valid bit + * patterns of the above flags. One additional valid pattern + * is all zeros, which means we don't expect a response. + */ +#define MMC_RSP_NONE (0) +#define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) +#define MMC_RSP_R1B (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE|MMC_RSP_BUSY) +#define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC) +#define MMC_RSP_R3 (MMC_RSP_PRESENT) +#define MMC_RSP_R4 (MMC_RSP_PRESENT) +#define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) +#define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) +#define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) + +#endif /* UAPI_MMC_CORE_H */ diff --git a/include/uapi/linux/mmc/ioctl.h b/include/uapi/linux/mmc/ioctl.h index fe4b6b69d79a..ca87a3c37573 100644 --- a/include/uapi/linux/mmc/ioctl.h +++ b/include/uapi/linux/mmc/ioctl.h @@ -64,6 +64,61 @@ struct mmc_ioc_multi_cmd { * commands in array in sequence to card. */ #define MMC_IOC_MULTI_CMD _IOWR(MMC_BLOCK_MAJOR, 1, struct mmc_ioc_multi_cmd) + +/** + * There are four request types that are applicable for rpmb accesses- two + * under read category and two under write. They are + * + * Reads + * ------- + * 1. Read Write Counter + * 2. Authenticated data read + * + * + * Writes + * ------- + * 1. Provision RPMB key (though it might be done in a secure environment) + * 2. Authenticated data write + * + * While its given that the rpmb data frames are going to have that + * information encoded in it and the frames should be generated by a secure + * piece of code, the request types can be classified as above. + * + * So here are the set of commands that should be executed atomically in the + * ioctl for rpmb read operation + * 1. Switch partition + * 2. Set block count + * 3. Write data frame - CMD25 to write the rpmb data frame + * 4. Set block count + * 5. Read the data - CMD18 to do the actual read + * + * Similarly for rpmb write operation, these are the commands that should be + * executed atomically in the ioctl for rpmb write operation + * 1. Switch partition + * 2. Set block count + * 3. Write data frame - CMD25 to write the rpmb data frame with data + * 4. Set block count + * 5. Read the data - CMD25 to write rpmb data frame indicating that rpmb + * result register is about to be read + * 6. Set block count + * 7. Read rpmb result - CMD18 to read the rpmb result register + * + * Each of the above commands should be sent individually via struct mmc_ioc_cmd + * and fields like is_acmd that are not needed for rpmb operations will be + * ignored. + */ +#define MMC_IOC_MAX_RPMB_CMD 3 +struct mmc_ioc_rpmb { + struct mmc_ioc_cmd cmds[MMC_IOC_MAX_RPMB_CMD]; +}; + +/* + * This ioctl is meant for use with rpmb partitions. This is needed since the + * access procedure for this particular partition is different from regular + * or normal partitions. + */ +#define MMC_IOC_RPMB_CMD _IOWR(MMC_BLOCK_MAJOR, 0, struct mmc_ioc_rpmb) + /* * Since this ioctl is only meant to enhance (and not replace) normal access * to the mmc bus device, an upper data transfer limit of MMC_IOC_MAX_BYTES diff --git a/include/uapi/linux/mmc/mmc.h b/include/uapi/linux/mmc/mmc.h new file mode 100644 index 000000000000..dd9f3a644169 --- /dev/null +++ b/include/uapi/linux/mmc/mmc.h @@ -0,0 +1,68 @@ +#ifndef UAPI_MMC_MMC_H +#define UAPI_MMC_MMC_H + +/* Standard MMC commands (4.1) type argument response */ + /* class 1 */ +#define MMC_GO_IDLE_STATE 0 /* bc */ +#define MMC_SEND_OP_COND 1 /* bcr [31:0] OCR R3 */ +#define MMC_ALL_SEND_CID 2 /* bcr R2 */ +#define MMC_SET_RELATIVE_ADDR 3 /* ac [31:16] RCA R1 */ +#define MMC_SET_DSR 4 /* bc [31:16] RCA */ +#define MMC_SLEEP_AWAKE 5 /* ac [31:16] RCA 15:flg R1b */ +#define MMC_SWITCH 6 /* ac [31:0] See below R1b */ +#define MMC_SELECT_CARD 7 /* ac [31:16] RCA R1 */ +#define MMC_SEND_EXT_CSD 8 /* adtc R1 */ +#define MMC_SEND_CSD 9 /* ac [31:16] RCA R2 */ +#define MMC_SEND_CID 10 /* ac [31:16] RCA R2 */ +#define MMC_READ_DAT_UNTIL_STOP 11 /* adtc [31:0] dadr R1 */ +#define MMC_STOP_TRANSMISSION 12 /* ac R1b */ +#define MMC_SEND_STATUS 13 /* ac [31:16] RCA R1 */ +#define MMC_BUS_TEST_R 14 /* adtc R1 */ +#define MMC_GO_INACTIVE_STATE 15 /* ac [31:16] RCA */ +#define MMC_BUS_TEST_W 19 /* adtc R1 */ +#define MMC_SPI_READ_OCR 58 /* spi spi_R3 */ +#define MMC_SPI_CRC_ON_OFF 59 /* spi [0:0] flag spi_R1 */ + + /* class 2 */ +#define MMC_SET_BLOCKLEN 16 /* ac [31:0] block len R1 */ +#define MMC_READ_SINGLE_BLOCK 17 /* adtc [31:0] data addr R1 */ +#define MMC_READ_MULTIPLE_BLOCK 18 /* adtc [31:0] data addr R1 */ +#define MMC_SEND_TUNING_BLOCK 19 /* adtc R1 */ +#define MMC_SEND_TUNING_BLOCK_HS200 21 /* adtc R1 */ +#define MMC_SEND_TUNING_BLOCK_HS400 MMC_SEND_TUNING_BLOCK_HS200 + +#define MMC_TUNING_BLK_PATTERN_4BIT_SIZE 64 +#define MMC_TUNING_BLK_PATTERN_8BIT_SIZE 128 + + /* class 3 */ +#define MMC_WRITE_DAT_UNTIL_STOP 20 /* adtc [31:0] data addr R1 */ + + /* class 4 */ +#define MMC_SET_BLOCK_COUNT 23 /* adtc [31:0] data addr R1 */ +#define MMC_WRITE_BLOCK 24 /* adtc [31:0] data addr R1 */ +#define MMC_WRITE_MULTIPLE_BLOCK 25 /* adtc R1 */ +#define MMC_PROGRAM_CID 26 /* adtc R1 */ +#define MMC_PROGRAM_CSD 27 /* adtc R1 */ + + /* class 6 */ +#define MMC_SET_WRITE_PROT 28 /* ac [31:0] data addr R1b */ +#define MMC_CLR_WRITE_PROT 29 /* ac [31:0] data addr R1b */ +#define MMC_SEND_WRITE_PROT 30 /* adtc [31:0] wpdata addr R1 */ + + /* class 5 */ +#define MMC_ERASE_GROUP_START 35 /* ac [31:0] data addr R1 */ +#define MMC_ERASE_GROUP_END 36 /* ac [31:0] data addr R1 */ +#define MMC_ERASE 38 /* ac R1b */ + + /* class 9 */ +#define MMC_FAST_IO 39 /* ac <Complex> R4 */ +#define MMC_GO_IRQ_STATE 40 /* bcr R5 */ + + /* class 7 */ +#define MMC_LOCK_UNLOCK 42 /* adtc R1b */ + + /* class 8 */ +#define MMC_APP_CMD 55 /* ac [31:16] RCA R1 */ +#define MMC_GEN_CMD 56 /* adtc [0] RD/WR R1 */ + +#endif /* UAPI_MMC_MMC_H */ |