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/*
* Copyright (C) 2000
* Dr. Duncan McLennan Barclay, dmlb@ragnet.demon.co.uk.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY DUNCAN BARCLAY AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL DUNCAN BARCLAY OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*
*/
/*
* Hacks for working around the PCCard layer problems in NEWBUS kludge
* and OLDCARD.
*
* Now that /sys/pccard/pcic.c can support multiple memory maps per
* slot correctly this is historical code. It is being left in the tree
* for a short while until interactions between OLDCARD and pccardd
* are ironed out. The common and attribute memory is now always
* mapped in. dmlb 17/1/01
*
* The driver assumes that the common memory is always mapped in,
* for the moment we ensure this with the following macro at the
* head of each function and by using functions to access attribute
* memory. Hysterical raisins led to the non-"reflexive" approach.
* Roll on NEWCARD and it can all die...
*
* We call the pccard layer to change and restore the mapping each
* time we use the attribute memory.
*
* These could become marcos around bus_activate_resource, but
* the functions do made hacking them around safer.
*/
#if RAY_NEED_CM_REMAPPING
#define RAY_MAP_CM(sc) ray_attr_mapcm(sc)
#else
#define RAY_MAP_CM(sc)
#endif /* RAY_NEED_CM_REMAPPING */
#if RAY_NEED_AM_REMAPPING
static __inline void ray_attr_mapam (struct ray_softc *sc);
static __inline u_int8_t ray_attr_read_1 (struct ray_softc *sc, off_t offset);
static __inline void ray_attr_write_1 (struct ray_softc *sc, off_t offset, u_int8_t byte);
#undef ATTR_READ_1
#define ATTR_READ_1(sc, off) ray_attr_read_1((sc), (off))
#undef ATTR_WRITE_1
#define ATTR_WRITE_1(sc, off, val) ray_attr_write_1((sc), (off), (val))
#endif /* RAY_NEED_AM_REMAPPING */
#if (RAY_NEED_AM_REMAPPING || RAY_NEED_CM_REMAPPING)
static __inline void ray_attr_mapcm (struct ray_softc *sc);
#endif /* (RAY_NEED_AM_REMAPPING || RAY_NEED_CM_REMAPPING) */
#if (RAY_NEED_AM_REMAPPING || RAY_NEED_CM_REMAPPING)
static __inline void
ray_attr_mapcm(struct ray_softc *sc)
{
bus_activate_resource(sc->dev, SYS_RES_MEMORY, sc->cm_rid, sc->cm_res);
#if RAY_DEBUG & RAY_DBG_CM
{
u_long flags = 0xffff;
CARD_GET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->cm_rid, &flags);
RAY_PRINTF(sc, "common memory\n"
". start 0x%0lx count 0x%0lx flags 0x%0lx",
bus_get_resource_start(sc->dev, SYS_RES_MEMORY, sc->cm_rid),
bus_get_resource_count(sc->dev, SYS_RES_MEMORY, sc->cm_rid),
flags);
}
#endif /* RAY_DEBUG & RAY_DBG_CM */
}
#endif /* (RAY_NEED_AM_REMAPPING || RAY_NEED_CM_REMAPPING) */
#if RAY_NEED_AM_REMAPPING
static __inline void
ray_attr_mapam(struct ray_softc *sc)
{
bus_activate_resource(sc->dev, SYS_RES_MEMORY, sc->am_rid, sc->am_res);
#if RAY_DEBUG & RAY_DBG_CM
{
u_long flags = 0xffff;
CARD_GET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->am_rid, &flags);
RAY_PRINTF(sc, "attribute memory\n"
". start 0x%0lx count 0x%0lx flags 0x%0lx",
bus_get_resource_start(sc->dev, SYS_RES_MEMORY, sc->am_rid),
bus_get_resource_count(sc->dev, SYS_RES_MEMORY, sc->am_rid),
flags);
}
#endif /* RAY_DEBUG & RAY_DBG_CM */
}
static __inline u_int8_t
ray_attr_read_1(struct ray_softc *sc, off_t offset)
{
u_int8_t byte;
ray_attr_mapam(sc);
byte = (u_int8_t)bus_space_read_1(sc->am_bst, sc->am_bsh, offset);
ray_attr_mapcm(sc);
return (byte);
}
static __inline void
ray_attr_write_1(struct ray_softc *sc, off_t offset, u_int8_t byte)
{
ray_attr_mapam(sc);
bus_space_write_1(sc->am_bst, sc->am_bsh, offset, byte);
ray_attr_mapcm(sc);
}
#endif /* RAY_NEED_AM_REMAPPING */
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