67ca7330cf
Add a CAM-Newbus SDIO support module. This works provides a newbus infrastructure for device drivers wanting to use SDIO. On the lower end while it is connected by newbus to SDHCI, it talks CAM using the MMCCAM framework to get to it. This also duplicates the usbdevs framework to equally create sdiodev header files with #defines for "vendors" and "products". Submitted by: kibab (initial work, see https://reviews.freebsd.org/D12467) Reviewed by: kibab, imp (comments on earlier version) MFC after: 6 weeks Relnotes: yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D19749
228 lines
6.1 KiB
C
228 lines
6.1 KiB
C
/*-
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* Copyright (c) 2017 Ilya Bakulin. All rights reserved.
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* Copyright (c) 2018-2019 The FreeBSD Foundation
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*
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* Portions of this software were developed by Björn Zeeb
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* under sponsorship from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*
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* Portions of this software may have been developed with reference to
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* the SD Simplified Specification. The following disclaimer may apply:
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*
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* The following conditions apply to the release of the simplified
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* specification ("Simplified Specification") by the SD Card Association and
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* the SD Group. The Simplified Specification is a subset of the complete SD
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* Specification which is owned by the SD Card Association and the SD
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* Group. This Simplified Specification is provided on a non-confidential
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* basis subject to the disclaimers below. Any implementation of the
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* Simplified Specification may require a license from the SD Card
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* Association, SD Group, SD-3C LLC or other third parties.
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*
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* Disclaimers:
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*
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* The information contained in the Simplified Specification is presented only
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* as a standard specification for SD Cards and SD Host/Ancillary products and
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* is provided "AS-IS" without any representations or warranties of any
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* kind. No responsibility is assumed by the SD Group, SD-3C LLC or the SD
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* Card Association for any damages, any infringements of patents or other
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* right of the SD Group, SD-3C LLC, the SD Card Association or any third
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* parties, which may result from its use. No license is granted by
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* implication, estoppel or otherwise under any patent or other rights of the
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* SD Group, SD-3C LLC, the SD Card Association or any third party. Nothing
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* herein shall be construed as an obligation by the SD Group, the SD-3C LLC
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* or the SD Card Association to disclose or distribute any technical
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* information, know-how or other confidential information to any third party.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <dev/mmc/mmcreg.h>
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#include <dev/sdio/sdiob.h>
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#include <dev/sdio/sdio_subr.h>
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#include "sdio_if.h"
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/* Works on F0. */
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static int
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sdio_set_bool_for_func(device_t dev, uint32_t addr, uint8_t fn, bool enable)
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{
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device_t pdev;
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int error;
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uint8_t val;
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bool enabled;
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pdev = device_get_parent(dev);
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error = SDIO_READ_DIRECT(pdev, 0, addr, &val);
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if (error != 0)
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return (error);
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enabled = (val & (1 << fn)) ? true : false;
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if (enabled == enable)
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return (0);
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if (enable)
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val |= (1 << fn);
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else
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val &= ~(1 << fn);
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error = SDIO_WRITE_DIRECT(pdev, 0, addr, val);
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return (error);
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}
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int
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sdio_enable_func(struct sdio_func *f)
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{
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return (sdio_set_bool_for_func(f->dev, SD_IO_CCCR_FN_ENABLE,
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f->fn, true));
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}
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int
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sdio_disable_func(struct sdio_func *f)
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{
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return (sdio_set_bool_for_func(f->dev, SD_IO_CCCR_FN_ENABLE,
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f->fn, false));
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}
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int
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sdio_set_block_size(struct sdio_func *f, uint16_t bs)
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{
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device_t pdev;
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int error;
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uint32_t addr;
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uint16_t v;
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if (!sdio_get_support_multiblk(f->dev))
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return (EOPNOTSUPP);
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pdev = device_get_parent(f->dev);
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addr = SD_IO_FBR_START * f->fn + SD_IO_FBR_IOBLKSZ;
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v = htole16(bs);
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/* Always write through F0. */
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error = SDIO_WRITE_DIRECT(pdev, 0, addr, v & 0xff);
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if (error == 0)
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error = SDIO_WRITE_DIRECT(pdev, 0, addr + 1,
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(v >> 8) & 0xff);
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if (error == 0)
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f->cur_blksize = bs;
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return (error);
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}
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uint8_t
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sdio_readb(struct sdio_func *f, uint32_t addr, int *err)
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{
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int error;
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uint8_t v;
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error = SDIO_READ_DIRECT(device_get_parent(f->dev), f->fn, addr, &v);
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if (error) {
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if (err != NULL)
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*err = error;
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return (0xff);
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} else {
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if (err != NULL)
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*err = 0;
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return (v);
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}
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}
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void
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sdio_writeb(struct sdio_func *f, uint8_t val, uint32_t addr, int *err)
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{
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int error;
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error = SDIO_WRITE_DIRECT(device_get_parent(f->dev), f->fn, addr, val);
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if (err != NULL)
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*err = error;
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}
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uint32_t
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sdio_readl(struct sdio_func *f, uint32_t addr, int *err)
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{
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int error;
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uint32_t v;
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error = SDIO_READ_EXTENDED(device_get_parent(f->dev), f->fn, addr,
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sizeof(v), (uint8_t *)&v, false);
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if (error) {
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if (err != NULL)
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*err = error;
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return (0xffffffff);
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} else {
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if (err != NULL)
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*err = 0;
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return (le32toh(v));
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}
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}
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void
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sdio_writel(struct sdio_func *f, uint32_t val, uint32_t addr, int *err)
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{
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int error;
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error = SDIO_WRITE_EXTENDED(device_get_parent(f->dev), f->fn, addr,
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sizeof(val), (uint8_t *)&val, false);
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if (err != NULL)
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*err = error;
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}
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uint8_t
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sdio_f0_readb(struct sdio_func *f, uint32_t addr, int *err)
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{
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int error;
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uint8_t v;
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error = SDIO_READ_DIRECT(device_get_parent(f->dev), 0, addr, &v);
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if (error) {
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if (err != NULL)
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*err = error;
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return (0xff);
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} else {
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if (err != NULL)
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*err = 0;
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return (v);
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}
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}
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void
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sdio_f0_writeb(struct sdio_func *f, uint8_t val, uint32_t addr, int *err)
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{
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int error;
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error = SDIO_WRITE_DIRECT(device_get_parent(f->dev), 0, addr, val);
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if (err != NULL)
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*err = error;
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}
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/* end */
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