xref: /freebsd/usr.bin/sdiotool/linux_sdio_compat.c (revision a7623790fb345e6dc986dfd31df0ace115e6f2e4)
1 /*-
2  * Copyright (c) 2016-2017 Ilya Bakulin
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #include <sys/ioctl.h>
33 #include <sys/stdint.h>
34 #include <sys/types.h>
35 #include <sys/stat.h>
36 #include <sys/endian.h>
37 #include <sys/sbuf.h>
38 #include <sys/mman.h>
39 
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include <unistd.h>
44 #include <inttypes.h>
45 #include <limits.h>
46 #include <fcntl.h>
47 #include <ctype.h>
48 #include <err.h>
49 #include <libutil.h>
50 #include <unistd.h>
51 
52 #include <cam/cam.h>
53 #include <cam/cam_debug.h>
54 #include <cam/cam_ccb.h>
55 #include <cam/mmc/mmc_all.h>
56 #include <camlib.h>
57 
58 #include "linux_compat.h"
59 #include "linux_sdio_compat.h"
60 #include "cam_sdio.h"
61 
62 u8 sdio_readb(struct sdio_func *func, unsigned int addr, int *err_ret) {
63 	return sdio_read_1(func->dev, func->num, addr, err_ret);
64 }
65 
66 unsigned char sdio_f0_readb(struct sdio_func *func, unsigned int addr, int *err_ret) {
67 	return sdio_readb(func, addr, err_ret);
68 }
69 
70 u16 sdio_readw(struct sdio_func *func, unsigned int addr, int *err_ret) {
71 	return sdio_read_2(func->dev, func->num, addr, err_ret);
72 }
73 
74 u32 sdio_readl(struct sdio_func *func, unsigned int addr, int *err_ret) {
75 	return sdio_read_4(func->dev, func->num, addr, err_ret);
76 }
77 
78 void sdio_writeb(struct sdio_func *func, u8 b,
79 		 unsigned int addr, int *err_ret) {
80 	*err_ret = sdio_write_1(func->dev, func->num, addr, b);
81 }
82 
83 /* Only writes to the vendor specific CCCR registers
84  * (0xF0 - 0xFF) are permiited. */
85 void sdio_f0_writeb(struct sdio_func *func, unsigned char b,
86 		    unsigned int addr, int *err_ret)
87 {
88 	if (addr < 0xF0 || addr > 0xFF) {
89 		if (err_ret)
90 			*err_ret = -EINVAL;
91 		return;
92 	}
93 	sdio_writeb(func, b, addr, err_ret);
94 }
95 
96 void sdio_writew(struct sdio_func *func, u16 b,
97 		 unsigned int addr, int *err_ret) {
98 	*err_ret = sdio_write_2(func->dev, func->num, addr, b);
99 }
100 
101 void sdio_writel(struct sdio_func *func, u32 b,
102 		 unsigned int addr, int *err_ret) {
103 	*err_ret = sdio_write_4(func->dev, func->num, addr, b);
104 }
105