84 lines
2.8 KiB
C
84 lines
2.8 KiB
C
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/* $OpenBSD: sdmmcchip.h,v 1.4 2009/02/20 19:16:35 miod Exp $ */
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/*
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* Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _SDMMC_CHIP_H_
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#define _SDMMC_CHIP_H_
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struct sdmmc_command;
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typedef struct sdmmc_chip_functions *sdmmc_chipset_tag_t;
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typedef void *sdmmc_chipset_handle_t;
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struct sdmmc_chip_functions {
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/* host controller reset */
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int (*host_reset)(sdmmc_chipset_handle_t);
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/* host capabilities */
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u_int32_t (*host_ocr)(sdmmc_chipset_handle_t);
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int (*host_maxblklen)(sdmmc_chipset_handle_t);
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/* card detection */
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int (*card_detect)(sdmmc_chipset_handle_t);
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/* bus power and clock frequency */
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int (*bus_power)(sdmmc_chipset_handle_t, u_int32_t);
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int (*bus_clock)(sdmmc_chipset_handle_t, int);
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/* command execution */
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void (*exec_command)(sdmmc_chipset_handle_t,
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struct sdmmc_command *);
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/* bus width */
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void (*set_bus_width)(sdmmc_chipset_handle_t, int);
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};
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/* host controller reset */
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#define sdmmc_chip_host_reset(tag, handle) \
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((tag)->host_reset((handle)))
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/* host capabilities */
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#define sdmmc_chip_host_ocr(tag, handle) \
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((tag)->host_ocr((handle)))
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#define sdmmc_chip_host_maxblklen(tag, handle) \
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((tag)->host_maxblklen((handle)))
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/* card detection */
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#define sdmmc_chip_card_detect(tag, handle) \
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((tag)->card_detect((handle)))
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/* bus power and clock frequency */
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#define sdmmc_chip_bus_power(tag, handle, ocr) \
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((tag)->bus_power((handle), (ocr)))
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#define sdmmc_chip_bus_clock(tag, handle, freq) \
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((tag)->bus_clock((handle), (freq)))
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/* command execution */
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#define sdmmc_chip_exec_command(tag, handle, cmdp) \
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((tag)->exec_command((handle), (cmdp)))
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/* bus widht */
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#define sdmmc_chip_set_bus_width(tag, handle, enable) \
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((tag)->set_bus_width((handle), (enable)))
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/* clock frequencies for sdmmc_chip_bus_clock() */
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#define SDMMC_SDCLK_OFF 0
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#define SDMMC_SDCLK_400KHZ 400
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#define SDMMC_SDCLK_25MHZ 25000
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struct sdmmcbus_attach_args {
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const char *saa_busname;
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sdmmc_chipset_tag_t sct;
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sdmmc_chipset_handle_t sch;
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int flags;
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long max_xfer;
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};
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void sdmmc_delay(u_int);
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#endif
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