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/* $OpenBSD: sdmmcvar.h,v 1.3 2006/07/18 04:10:35 uwe Exp $ */
/*
* Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org>
*
* 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_
#include <sys/queue.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include <dev/sdmmc/sdmmcchip.h>
#include <dev/sdmmc/sdmmcreg.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;
TAILQ_ENTRY(sdmmc_task) next;
};
#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_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_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)
int c_error; /* errno value on completion */
};
/*
* 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 */
SIMPLEQ_ENTRY(sdmmc_function) sf_list;
/* 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 */
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 */
SIMPLEQ_HEAD(, sdmmc_function) sf_head; /* list of card functions */
int sc_dying; /* bus driver is shutting down */
struct proc *sc_task_thread; /* asynchronous tasks */
TAILQ_HEAD(, sdmmc_task) sc_tskq; /* task thread work queue */
struct sdmmc_task sc_discover_task; /* card attach/detach task */
struct lock sc_lock; /* lock around host controller */
void *sc_scsibus; /* SCSI bus emulation softc */
};
/*
* 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 splsdmmc() splbio()
#define SDMMC_LOCK(sc) lockmgr(&(sc)->sc_lock, LK_EXCLUSIVE, NULL)
#define SDMMC_UNLOCK(sc) lockmgr(&(sc)->sc_lock, LK_RELEASE, NULL)
void sdmmc_add_task(struct sdmmc_softc *, struct sdmmc_task *);
void sdmmc_del_task(struct sdmmc_task *);
struct sdmmc_function *sdmmc_function_alloc(struct sdmmc_softc *);
void sdmmc_function_free(struct sdmmc_function *);
int sdmmc_set_bus_power(struct sdmmc_softc *, u_int32_t, u_int32_t);
int sdmmc_mmc_command(struct sdmmc_softc *, struct sdmmc_command *);
int sdmmc_app_command(struct sdmmc_softc *, struct sdmmc_command *);
void sdmmc_go_idle_state(struct sdmmc_softc *);
int sdmmc_select_card(struct sdmmc_softc *, struct sdmmc_function *);
int sdmmc_set_relative_addr(struct sdmmc_softc *,
struct sdmmc_function *);
int sdmmc_decode_csd(struct sdmmc_softc *, sdmmc_response,
struct sdmmc_function *);
int sdmmc_decode_cid(struct sdmmc_softc *, sdmmc_response,
struct sdmmc_function *);
void sdmmc_print_cid(struct sdmmc_cid *);
int sdmmc_io_enable(struct sdmmc_softc *);
void sdmmc_io_scan(struct sdmmc_softc *);
int sdmmc_io_init(struct sdmmc_softc *, struct sdmmc_function *);
void sdmmc_io_attach(struct sdmmc_softc *);
void sdmmc_io_detach(struct sdmmc_softc *);
u_int8_t sdmmc_io_read_1(struct sdmmc_function *, int);
u_int16_t sdmmc_io_read_2(struct sdmmc_function *, int);
u_int32_t sdmmc_io_read_4(struct sdmmc_function *, int);
void sdmmc_io_write_1(struct sdmmc_function *, int, u_int8_t);
void sdmmc_io_write_2(struct sdmmc_function *, int, u_int16_t);
void sdmmc_io_write_4(struct sdmmc_function *, int, u_int32_t);
void sdmmc_io_function_enable(struct sdmmc_function *);
void sdmmc_io_function_disable(struct sdmmc_function *);
int sdmmc_read_cis(struct sdmmc_function *, struct sdmmc_cis *);
void sdmmc_print_cis(struct sdmmc_function *);
void sdmmc_check_cis_quirks(struct sdmmc_function *);
int sdmmc_mem_enable(struct sdmmc_softc *);
void sdmmc_mem_scan(struct sdmmc_softc *);
int sdmmc_mem_init(struct sdmmc_softc *, struct sdmmc_function *);
int sdmmc_mem_read_block(struct sdmmc_function *, int, u_char *, size_t);
int sdmmc_mem_write_block(struct sdmmc_function *, int, u_char *, size_t);
#endif
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