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68791a05fe
In some cases it is desirable to let the Broadway processor take complete control of hardware initially managed by 'mini'. Add a new IPC call to instruct 'mini' to relinquish control of the SD Host Controller. One immediate user of this IPC call is Linux on the Nintendo Wii which takes complete control of the SDHC hardware. Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/* $OpenBSD: sdhcvar.h,v 1.3 2007/09/06 08:01:01 jsg Exp $ */
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/*
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* Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org>
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* Copyright (c) 2009 Sven Peter <svenpeter@gmail.com>
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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 _SDHCVAR_H_
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#define _SDHCVAR_H_
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#include "bsdtypes.h"
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#ifdef CAN_HAZ_IPC
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#include "ipc.h"
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#endif
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#define SDHC_MAX_HOSTS 4
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struct sdhc_host {
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struct sdhc_softc *sc; /* host controller device */
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struct device *sdmmc; /* generic SD/MMC device */
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bus_space_tag_t iot; /* host register set tag */
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bus_space_handle_t ioh; /* host register set handle */
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u_int clkbase; /* base clock frequency in KHz */
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int maxblklen; /* maximum block length */
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int flags; /* flags for this host */
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u_int32_t ocr; /* OCR value from capabilities */
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u_int8_t regs[14]; /* host controller state */
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u_int16_t intr_status; /* soft interrupt status */
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u_int16_t intr_error_status; /* soft error status */
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int data_command;
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};
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struct sdhc_softc {
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struct device sc_dev;
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struct sdhc_host sc_host[SDHC_MAX_HOSTS];
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int sc_nhosts;
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u_int sc_flags;
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};
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/* Host controller functions called by the attachment driver. */
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int sdhc_host_found(struct sdhc_softc *, bus_space_tag_t,
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bus_space_handle_t, int);
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void sdhc_power(int, void *);
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void sdhc_shutdown(void *);
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int sdhc_intr(void *);
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void sdhc_init(void);
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void sdhc_exit(void);
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void sdhc_irq(void);
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#ifdef CAN_HAZ_IPC
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void sdhc_ipc(volatile ipc_request *req);
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#endif
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/* flag values */
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#define SDHC_F_NOPWR0 (1 << 0)
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#endif
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