/*- * 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 #include #include #include #include #include #include #include #include #include #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 (bs > f->max_blksize) return (EOPNOTSUPP); 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_read_1(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_write_1(struct sdio_func *f, uint32_t addr, uint8_t val, 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_read_4(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, true); if (error) { if (err != NULL) *err = error; return (0xffffffff); } else { if (err != NULL) *err = 0; return (le32toh(v)); } } void sdio_write_4(struct sdio_func *f, uint32_t addr, uint32_t val, int *err) { int error; error = SDIO_WRITE_EXTENDED(device_get_parent(f->dev), f->fn, addr, sizeof(val), (uint8_t *)&val, true); if (err != NULL) *err = error; } uint8_t sdio_f0_read_1(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_write_1(struct sdio_func *f, uint32_t addr, uint8_t val, int *err) { int error; error = SDIO_WRITE_DIRECT(device_get_parent(f->dev), 0, addr, val); if (err != NULL) *err = error; } /* end */