/* $OpenBSD: sdmmcvar.h,v 1.16 2009/04/07 16:35:52 blambert Exp $ */ /* * Copyright (c) 2006 Uwe Stuehler * Copyright (c) 2009 Sven Peter * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef _SDMMCVAR_H_ #define _SDMMCVAR_H_ struct sdmmc_csd { int csdver; /* CSD structure format */ int mmcver; /* MMC version (for CID format) */ int capacity; /* total number of sectors */ int sector_size; /* sector size in bytes */ int read_bl_len; /* block length for reads */ /* ... */ }; struct sdmmc_cid { int mid; /* manufacturer identification number */ int oid; /* OEM/product identification number */ char pnm[8]; /* product name (MMC v1 has the longest) */ int rev; /* product revision */ int psn; /* product serial number */ int mdt; /* manufacturing date */ }; typedef u_int32_t sdmmc_response[4]; struct sdmmc_softc; struct sdmmc_task { void (*func)(void *arg); void *arg; int onqueue; struct sdmmc_softc *sc; }; #define sdmmc_init_task(xtask, xfunc, xarg) do { \ (xtask)->func = (xfunc); \ (xtask)->arg = (xarg); \ (xtask)->onqueue = 0; \ (xtask)->sc = NULL; \ } while (0) #define sdmmc_task_pending(xtask) ((xtask)->onqueue) struct sdmmc_command { // struct sdmmc_task c_task; /* task queue entry */ u_int16_t c_opcode; /* SD or MMC command index */ u_int32_t c_arg; /* SD/MMC command argument */ sdmmc_response c_resp; /* response buffer */ void *c_data; /* buffer to send or read into */ int c_datalen; /* length of data buffer */ int c_blklen; /* block length */ int c_flags; /* see below */ #define SCF_ITSDONE 0x0001 /* command is complete */ #define SCF_CMD(flags) ((flags) & 0x00f0) #define SCF_CMD_AC 0x0000 #define SCF_CMD_ADTC 0x0010 #define SCF_CMD_BC 0x0020 #define SCF_CMD_BCR 0x0030 #define SCF_CMD_READ 0x0040 /* read command (data expected) */ #define SCF_RSP_BSY 0x0100 #define SCF_RSP_136 0x0200 #define SCF_RSP_CRC 0x0400 #define SCF_RSP_IDX 0x0800 #define SCF_RSP_PRESENT 0x1000 /* response types */ #define SCF_RSP_R0 0 /* none */ #define SCF_RSP_R1 (SCF_RSP_PRESENT|SCF_RSP_CRC|SCF_RSP_IDX) #define SCF_RSP_R1B (SCF_RSP_PRESENT|SCF_RSP_CRC|SCF_RSP_IDX|SCF_RSP_BSY) #define SCF_RSP_R2 (SCF_RSP_PRESENT|SCF_RSP_CRC|SCF_RSP_136) #define SCF_RSP_R3 (SCF_RSP_PRESENT) #define SCF_RSP_R4 (SCF_RSP_PRESENT) #define SCF_RSP_R5 (SCF_RSP_PRESENT|SCF_RSP_CRC|SCF_RSP_IDX) #define SCF_RSP_R5B (SCF_RSP_PRESENT|SCF_RSP_CRC|SCF_RSP_IDX|SCF_RSP_BSY) #define SCF_RSP_R6 (SCF_RSP_PRESENT|SCF_RSP_CRC|SCF_RSP_IDX) #define SCF_RSP_R7 (SCF_RSP_PRESENT|SCF_RSP_CRC|SCF_RSP_IDX) int c_error; /* errno value on completion */ int c_timeout; /* Host controller owned fields for data xfer in progress */ int c_resid; /* remaining I/O */ u_char *c_buf; /* remaining data */ }; /* * Decoded PC Card 16 based Card Information Structure (CIS), * per card (function 0) and per function (1 and greater). */ struct sdmmc_cis { u_int16_t manufacturer; #define SDMMC_VENDOR_INVALID 0xffff u_int16_t product; #define SDMMC_PRODUCT_INVALID 0xffff u_int8_t function; #define SDMMC_FUNCTION_INVALID 0xff u_char cis1_major; u_char cis1_minor; char cis1_info_buf[256]; char *cis1_info[4]; }; /* * Structure describing either an SD card I/O function or a SD/MMC * memory card from a "stack of cards" that responded to CMD2. For a * combo card with one I/O function and one memory card, there will be * two of these structures allocated. Each card slot has such a list * of sdmmc_function structures. */ struct sdmmc_function { /* common members */ struct sdmmc_softc *sc; /* card slot softc */ u_int16_t rca; /* relative card address */ int flags; #define SFF_ERROR 0x0001 /* function is poo; ignore it */ #define SFF_SDHC 0x0002 /* SD High Capacity card */ /* SD card I/O function members */ int number; /* I/O function number or -1 */ struct device *child; /* function driver */ struct sdmmc_cis cis; /* decoded CIS */ /* SD/MMC memory card members */ struct sdmmc_csd csd; /* decoded CSD value */ struct sdmmc_cid cid; /* decoded CID value */ sdmmc_response raw_cid; /* temp. storage for decoding */ }; /* * Structure describing a single SD/MMC/SDIO card slot. */ struct sdmmc_softc { struct device sc_dev; /* base device */ #define SDMMCDEVNAME(sc) ((sc)->sc_dev.dv_xname) sdmmc_chipset_tag_t sct; /* host controller chipset tag */ sdmmc_chipset_handle_t sch; /* host controller chipset handle */ int sc_flags; #define SMF_SD_MODE 0x0001 /* host in SD mode (MMC otherwise) */ #define SMF_IO_MODE 0x0002 /* host in I/O mode (SD mode only) */ #define SMF_MEM_MODE 0x0004 /* host in memory mode (SD or MMC) */ #define SMF_CARD_PRESENT 0x0010 /* card presence noticed */ #define SMF_CARD_ATTACHED 0x0020 /* card driver(s) attached */ #define SMF_STOP_AFTER_MULTIPLE 0x0040 /* send a stop after a multiple cmd */ int sc_function_count; /* number of I/O functions (SDIO) */ struct sdmmc_function *sc_card; /* selected card */ struct sdmmc_function *sc_fn0; /* function 0, the card itself */ int sc_dying; /* bus driver is shutting down */ struct proc *sc_task_thread; /* asynchronous tasks */ struct sdmmc_task sc_discover_task; /* card attach/detach task */ struct sdmmc_task sc_intr_task; /* card interrupt task */ void *sc_scsibus; /* SCSI bus emulation softc */ long sc_max_xfer; /* maximum transfer size */ }; /* * Attach devices at the sdmmc bus. */ struct sdmmc_attach_args { struct scsi_link *scsi_link; /* XXX */ struct sdmmc_function *sf; }; #define IPL_SDMMC IPL_BIO #define SDMMC_LOCK(sc) lockmgr(&(sc)->sc_lock, LK_EXCLUSIVE, NULL) #define SDMMC_UNLOCK(sc) lockmgr(&(sc)->sc_lock, LK_RELEASE, NULL) #define SDMMC_ASSERT_LOCKED(sc) \ KASSERT(lockstatus(&((sc))->sc_lock) == LK_EXCLUSIVE) #endif