libc/kernel/common/linux/mmc/mmc.h

/****************************************************************************
 ****************************************************************************
 ***
 ***   This header was automatically generated from a Linux kernel header
 ***   of the same name, to make information necessary for userspace to
 ***   call into the kernel available to libc.  It contains only constants,
 ***   structures, and macros generated from the original header, and thus,
 ***   contains no copyrightable information.
 ***
 ****************************************************************************
 ****************************************************************************/
#ifndef MMC_H
#define MMC_H

#include <linux/list.h>
#include <linux/interrupt.h>
#include <linux/device.h>

struct request;
struct mmc_data;
struct mmc_request;

struct mmc_command {
 u32 opcode;
 u32 arg;
 u32 resp[4];
 unsigned int flags;
#define MMC_RSP_PRESENT (1 << 0)
#define MMC_RSP_136 (1 << 1)  
#define MMC_RSP_CRC (1 << 2)  
#define MMC_RSP_BUSY (1 << 3)  
#define MMC_RSP_OPCODE (1 << 4)  
#define MMC_CMD_MASK (3 << 5)  
#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_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_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC)

#define mmc_resp_type(cmd) ((cmd)->flags & (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC|MMC_RSP_BUSY|MMC_RSP_OPCODE))

#define mmc_cmd_type(cmd) ((cmd)->flags & MMC_CMD_MASK)

 unsigned int retries;
 unsigned int error;

#define MMC_ERR_NONE 0
#define MMC_ERR_TIMEOUT 1
#define MMC_ERR_BADCRC 2
#define MMC_ERR_FIFO 3
#define MMC_ERR_FAILED 4
#define MMC_ERR_INVALID 5

 struct mmc_data *data;
 struct mmc_request *mrq;
};

struct mmc_data {
 unsigned int timeout_ns;
 unsigned int timeout_clks;
 unsigned int blksz_bits;
 unsigned int blksz;
 unsigned int blocks;
 unsigned int error;
 unsigned int flags;

#define MMC_DATA_WRITE (1 << 8)
#define MMC_DATA_READ (1 << 9)
#define MMC_DATA_STREAM (1 << 10)
#define MMC_DATA_MULTI (1 << 11)

 unsigned int bytes_xfered;

 struct mmc_command *stop;
 struct mmc_request *mrq;

 unsigned int sg_len;
 struct scatterlist *sg;
};

struct mmc_request {
 struct mmc_command *cmd;
 struct mmc_data *data;
 struct mmc_command *stop;

 void *done_data;
 void (*done)(struct mmc_request *);
};

struct mmc_host;
struct mmc_card;

#endif