/*-
* Copyright (c) 2017 Ilya Bakulin. All rights reserved.
* Copyright (c) 2018-2019 The FreeBSD Foundation
*
* Portions of this software were developed by Björn Zeeb
* under sponsorship from the FreeBSD Foundation.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
*
*
* Portions of this software may have been developed with reference to
* the SD Simplified Specification. The following disclaimer may apply:
*
* The following conditions apply to the release of the simplified
* specification ("Simplified Specification") by the SD Card Association and
* the SD Group. The Simplified Specification is a subset of the complete SD
* Specification which is owned by the SD Card Association and the SD
* Group. This Simplified Specification is provided on a non-confidential
* basis subject to the disclaimers below. Any implementation of the
* Simplified Specification may require a license from the SD Card
* Association, SD Group, SD-3C LLC or other third parties.
*
* Disclaimers:
*
* The information contained in the Simplified Specification is presented only
* as a standard specification for SD Cards and SD Host/Ancillary products and
* is provided "AS-IS" without any representations or warranties of any
* kind. No responsibility is assumed by the SD Group, SD-3C LLC or the SD
* Card Association for any damages, any infringements of patents or other
* right of the SD Group, SD-3C LLC, the SD Card Association or any third
* parties, which may result from its use. No license is granted by
* implication, estoppel or otherwise under any patent or other rights of the
* SD Group, SD-3C LLC, the SD Card Association or any third party. Nothing
* herein shall be construed as an obligation by the SD Group, the SD-3C LLC
* or the SD Card Association to disclose or distribute any technical
* information, know-how or other confidential information to any third party.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <dev/mmc/mmcreg.h>
#include <dev/sdio/sdiob.h>
#include <dev/sdio/sdio_subr.h>
#include "sdio_if.h"
/* Works on F0. */
static int
sdio_set_bool_for_func(device_t dev, uint32_t addr, uint8_t fn, bool enable)
{
device_t pdev;
int error;
uint8_t val;
bool enabled;
pdev = device_get_parent(dev);
error = SDIO_READ_DIRECT(pdev, 0, addr, &val);
if (error != 0)
return (error);
enabled = (val & (1 << fn)) ? true : false;
if (enabled == enable)
return (0);
if (enable)
val |= (1 << fn);
else
val &= ~(1 << fn);
error = SDIO_WRITE_DIRECT(pdev, 0, addr, val);
return (error);
}
int
sdio_enable_func(struct sdio_func *f)
{
return (sdio_set_bool_for_func(f->dev, SD_IO_CCCR_FN_ENABLE,
f->fn, true));
}
int
sdio_disable_func(struct sdio_func *f)
{
return (sdio_set_bool_for_func(f->dev, SD_IO_CCCR_FN_ENABLE,
f->fn, false));
}
int
sdio_set_block_size(struct sdio_func *f, uint16_t bs)
{
device_t pdev;
int error;
uint32_t addr;
uint16_t v;
if (!sdio_get_support_multiblk(f->dev))
return (EOPNOTSUPP);
pdev = device_get_parent(f->dev);
addr = SD_IO_FBR_START * f->fn + SD_IO_FBR_IOBLKSZ;
v = htole16(bs);
/* Always write through F0. */
error = SDIO_WRITE_DIRECT(pdev, 0, addr, v & 0xff);
if (error == 0)
error = SDIO_WRITE_DIRECT(pdev, 0, addr + 1,
(v >> 8) & 0xff);
if (error == 0)
f->cur_blksize = bs;
return (error);
}
uint8_t
sdio_readb(struct sdio_func *f, uint32_t addr, int *err)
{
int error;
uint8_t v;
error = SDIO_READ_DIRECT(device_get_parent(f->dev), f->fn, addr, &v);
if (error) {
if (err != NULL)
*err = error;
return (0xff);
} else {
if (err != NULL)
*err = 0;
return (v);
}
}
void
sdio_writeb(struct sdio_func *f, uint8_t val, uint32_t addr, int *err)
{
int error;
error = SDIO_WRITE_DIRECT(device_get_parent(f->dev), f->fn, addr, val);
if (err != NULL)
*err = error;
}
uint32_t
sdio_readl(struct sdio_func *f, uint32_t addr, int *err)
{
int error;
uint32_t v;
error = SDIO_READ_EXTENDED(device_get_parent(f->dev), f->fn, addr,
sizeof(v), (uint8_t *)&v, false);
if (error) {
if (err != NULL)
*err = error;
return (0xffffffff);
} else {
if (err != NULL)
*err = 0;
return (le32toh(v));
}
}
void
sdio_writel(struct sdio_func *f, uint32_t val, uint32_t addr, int *err)
{
int error;
error = SDIO_WRITE_EXTENDED(device_get_parent(f->dev), f->fn, addr,
sizeof(val), (uint8_t *)&val, false);
if (err != NULL)
*err = error;
}
uint8_t
sdio_f0_readb(struct sdio_func *f, uint32_t addr, int *err)
{
int error;
uint8_t v;
error = SDIO_READ_DIRECT(device_get_parent(f->dev), 0, addr, &v);
if (error) {
if (err != NULL)
*err = error;
return (0xff);
} else {
if (err != NULL)
*err = 0;
return (v);
}
}
void
sdio_f0_writeb(struct sdio_func *f, uint8_t val, uint32_t addr, int *err)
{
int error;
error = SDIO_WRITE_DIRECT(device_get_parent(f->dev), 0, addr, val);
if (err != NULL)
*err = error;
}
/* end */