1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/* $OpenBSD: sdmmc_cis.c,v 1.5 2010/08/24 14:52:23 blambert Exp $ */
/*
* Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* Routines to decode the Card Information Structure of SD I/O cards */
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <dev/sdmmc/sdmmc_ioreg.h>
#include <dev/sdmmc/sdmmcdevs.h>
#include <dev/sdmmc/sdmmcvar.h>
u_int32_t sdmmc_cisptr(struct sdmmc_function *);
#ifdef SDMMC_DEBUG
#define DPRINTF(s) printf s
#else
#define DPRINTF(s) /**/
#endif
u_int32_t
sdmmc_cisptr(struct sdmmc_function *sf)
{
u_int32_t cisptr = 0;
rw_assert_wrlock(&sf->sc->sc_lock);
/* XXX where is the per-function CIS pointer register? */
if (sf->number != 0)
return SD_IO_CIS_START;
/* XXX is the CIS pointer stored in little-endian format? */
cisptr |= sdmmc_io_read_1(sf, SD_IO_CCCR_CISPTR+0) << 0;
cisptr |= sdmmc_io_read_1(sf, SD_IO_CCCR_CISPTR+1) << 8;
cisptr |= sdmmc_io_read_1(sf, SD_IO_CCCR_CISPTR+2) << 16;
return cisptr;
}
int
sdmmc_read_cis(struct sdmmc_function *sf, struct sdmmc_cis *cis)
{
int reg;
u_int8_t tplcode;
u_int8_t tpllen;
rw_assert_wrlock(&sf->sc->sc_lock);
bzero(cis, sizeof *cis);
/* XXX read per-function CIS */
if (sf->number != 0)
return 1;
reg = (int)sdmmc_cisptr(sf);
if (reg < SD_IO_CIS_START ||
reg >= (SD_IO_CIS_START+SD_IO_CIS_SIZE-16)) {
printf("%s: bad CIS ptr %#x\n", DEVNAME(sf->sc), reg);
return 1;
}
for (;;) {
tplcode = sdmmc_io_read_1(sf, reg++);
tpllen = sdmmc_io_read_1(sf, reg++);
if (tplcode == 0xff || tpllen == 0) {
if (tplcode != 0xff)
printf("%s: CIS parse error at %d, "
"tuple code %#x, length %d\n",
DEVNAME(sf->sc), reg, tplcode, tpllen);
break;
}
switch (tplcode) {
case SD_IO_CISTPL_FUNCID:
if (tpllen < 2) {
printf("%s: bad CISTPL_FUNCID length\n",
DEVNAME(sf->sc));
reg += tpllen;
break;
}
cis->function = sdmmc_io_read_1(sf, reg);
reg += tpllen;
break;
case SD_IO_CISTPL_MANFID:
if (tpllen < 4) {
printf("%s: bad CISTPL_MANFID length\n",
DEVNAME(sf->sc));
reg += tpllen;
break;
}
cis->manufacturer = sdmmc_io_read_1(sf, reg++);
cis->manufacturer |= sdmmc_io_read_1(sf, reg++) << 8;
cis->product = sdmmc_io_read_1(sf, reg++);
cis->product |= sdmmc_io_read_1(sf, reg++) << 8;
break;
case SD_IO_CISTPL_VERS_1:
if (tpllen < 2) {
printf("%s: CISTPL_VERS_1 too short\n",
DEVNAME(sf->sc));
reg += tpllen;
break;
}
{
int start, i, ch, count;
cis->cis1_major = sdmmc_io_read_1(sf, reg++);
cis->cis1_minor = sdmmc_io_read_1(sf, reg++);
for (count = 0, start = 0, i = 0;
(count < 4) && ((i + 4) < 256); i++) {
ch = sdmmc_io_read_1(sf, reg + i);
if (ch == 0xff)
break;
cis->cis1_info_buf[i] = ch;
if (ch == 0) {
cis->cis1_info[count] =
cis->cis1_info_buf + start;
start = i + 1;
count++;
}
}
reg += tpllen - 2;
}
break;
default:
DPRINTF(("%s: unknown tuple code %#x, length %d\n",
DEVNAME(sf->sc), tplcode, tpllen));
reg += tpllen;
break;
}
}
return 0;
}
void
sdmmc_print_cis(struct sdmmc_function *sf)
{
struct sdmmc_cis *cis = &sf->cis;
int i;
printf("%s: CIS version %d.%d\n", DEVNAME(sf->sc),
cis->cis1_major, cis->cis1_minor);
printf("%s: CIS info: ", DEVNAME(sf->sc));
for (i = 0; i < 4; i++) {
if (cis->cis1_info[i] == NULL)
break;
if (i)
printf(", ");
printf("%s", cis->cis1_info[i]);
}
printf("\n");
printf("%s: Manufacturer code 0x%x, product 0x%x\n",
DEVNAME(sf->sc), cis->manufacturer, cis->product);
printf("%s: function %d: ", DEVNAME(sf->sc), sf->number);
switch (sf->cis.function) {
case SDMMC_FUNCTION_WLAN:
printf("wireless network adapter");
break;
default:
printf("unknown (%d)", sf->cis.function);
break;
}
printf("\n");
}
void
sdmmc_check_cis_quirks(struct sdmmc_function *sf)
{
if (sf->cis.manufacturer == SDMMC_VENDOR_SPECTEC &&
sf->cis.product == SDMMC_PRODUCT_SPECTEC_SDW820) {
/* This card lacks the VERS_1 tuple. */
sf->cis.cis1_major = 0x01;
sf->cis.cis1_minor = 0x00;
sf->cis.cis1_info[0] = "Spectec";
sf->cis.cis1_info[1] = "SDIO WLAN Card";
sf->cis.cis1_info[2] = "SDW-820";
sf->cis.cis1_info[3] = "";
}
}
|
