029c02a3ae
It's now possible to use Broadcom functions to read the I/O registers of
SDIO card. The functions were copied from the BSD-licensed Broadcom Linux driver
as-is. To make it possible, a small Linux compatibility layer was introduced.
Currently the card responds with the correct version number ("magic")
when reading the corresponding address.
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D12111
105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
/*-
|
|
* Copyright (c) 2016-2017 Ilya Bakulin
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/ioctl.h>
|
|
#include <sys/stdint.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/endian.h>
|
|
#include <sys/sbuf.h>
|
|
#include <sys/mman.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <inttypes.h>
|
|
#include <limits.h>
|
|
#include <fcntl.h>
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <libutil.h>
|
|
#include <unistd.h>
|
|
|
|
#include <cam/cam.h>
|
|
#include <cam/cam_debug.h>
|
|
#include <cam/cam_ccb.h>
|
|
#include <cam/mmc/mmc_all.h>
|
|
#include <camlib.h>
|
|
|
|
#include "linux_compat.h"
|
|
#include "linux_sdio_compat.h"
|
|
#include "cam_sdio.h"
|
|
|
|
u8 sdio_readb(struct sdio_func *func, unsigned int addr, int *err_ret) {
|
|
return sdio_read_1(func->dev, func->num, addr, err_ret);
|
|
}
|
|
|
|
unsigned char sdio_f0_readb(struct sdio_func *func, unsigned int addr, int *err_ret) {
|
|
return sdio_readb(func, addr, err_ret);
|
|
}
|
|
|
|
u16 sdio_readw(struct sdio_func *func, unsigned int addr, int *err_ret) {
|
|
return sdio_read_2(func->dev, func->num, addr, err_ret);
|
|
}
|
|
|
|
u32 sdio_readl(struct sdio_func *func, unsigned int addr, int *err_ret) {
|
|
return sdio_read_4(func->dev, func->num, addr, err_ret);
|
|
}
|
|
|
|
void sdio_writeb(struct sdio_func *func, u8 b,
|
|
unsigned int addr, int *err_ret) {
|
|
*err_ret = sdio_write_1(func->dev, func->num, addr, b);
|
|
}
|
|
|
|
/* Only writes to the vendor specific CCCR registers
|
|
* (0xF0 - 0xFF) are permiited. */
|
|
void sdio_f0_writeb(struct sdio_func *func, unsigned char b,
|
|
unsigned int addr, int *err_ret)
|
|
{
|
|
if (addr < 0xF0 || addr > 0xFF) {
|
|
if (err_ret)
|
|
*err_ret = -EINVAL;
|
|
return;
|
|
}
|
|
sdio_writeb(func, b, addr, err_ret);
|
|
}
|
|
|
|
void sdio_writew(struct sdio_func *func, u16 b,
|
|
unsigned int addr, int *err_ret) {
|
|
*err_ret = sdio_write_2(func->dev, func->num, addr, b);
|
|
}
|
|
|
|
void sdio_writel(struct sdio_func *func, u32 b,
|
|
unsigned int addr, int *err_ret) {
|
|
*err_ret = sdio_write_4(func->dev, func->num, addr, b);
|
|
}
|