http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/linux/mmc/mmc.h

/* * linux/include/linux/mmc/mmc.h * * 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. */ #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; /* expected response type */ #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) /* 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) /* * These are the 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_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)) /* * These are the command types. */ #define mmc_cmd_type(cmd) ((cmd)->flags & MMC_CMD_MASK) unsigned int retries; /* max number of retries */ unsigned int error; /* command 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; /* data segment associated with cmd */ struct mmc_request *mrq; /* associated request */ }; struct mmc_data { unsigned int timeout_ns; /* data timeout (in ns, max 80ms) */ unsigned int timeout_clks; /* data timeout (in clocks) */ unsigned int blksz_bits; /* data block size */ unsigned int blocks; /* number of blocks */ unsigned int error; /* data 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; /* stop command */ struct mmc_request *mrq; /* associated request */ unsigned int sg_len; /* size of scatter list */ struct scatterlist *sg; /* I/O scatter list */ }; struct mmc_request { struct mmc_command *cmd; struct mmc_data *data; struct mmc_command *stop; void *done_data; /* completion data */ void (*done)(struct mmc_request *);/* completion function */ }; struct mmc_host; struct mmc_card; extern int mmc_wait_for_req(struct mmc_host *, struct mmc_request *); extern int mmc_wait_for_cmd(struct mmc_host *, struct mmc_command *, int); extern int mmc_wait_for_app_cmd(struct mmc_host *, unsigned int, struct mmc_command *, int); extern int __mmc_claim_host(struct mmc_host *host, struct mmc_card *card); static inline void mmc_claim_host(struct mmc_host *host) { __mmc_claim_host(host, (struct mmc_card *)-1); } extern void mmc_release_host(struct mmc_host *host); #endif