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
202
203
204
205
|
/*
* bebob_command.c - driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
*
* Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./bebob.h"
static inline void
avc_bridgeco_fill_extension_addr(u8 *buf, u8 *addr)
{
buf[1] = addr[0];
memcpy(buf + 4, addr + 1, 5);
}
static inline void
avc_bridgeco_fill_plug_info_extension_command(u8 *buf, u8 *addr,
unsigned int itype)
{
buf[0] = 0x01; /* AV/C STATUS */
buf[2] = 0x02; /* AV/C GENERAL PLUG INFO */
buf[3] = 0xc0; /* BridgeCo extension */
avc_bridgeco_fill_extension_addr(buf, addr);
buf[9] = itype; /* info type */
}
int avc_bridgeco_get_plug_type(struct fw_unit *unit,
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
enum avc_bridgeco_plug_type *type)
{
u8 *buf;
int err;
buf = kzalloc(12, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
/* Info type is 'plug type'. */
avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x00);
err = fcp_avc_transaction(unit, buf, 12, buf, 12,
BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
BIT(6) | BIT(7) | BIT(9));
if ((err >= 0) && (err < 8))
err = -EIO;
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
err = -ENOSYS;
else if (buf[0] == 0x0a) /* REJECTED */
err = -EINVAL;
else if (buf[0] == 0x0b) /* IN TRANSITION */
err = -EAGAIN;
if (err < 0)
goto end;
*type = buf[10];
err = 0;
end:
kfree(buf);
return err;
}
int avc_bridgeco_get_plug_ch_pos(struct fw_unit *unit,
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
u8 *buf, unsigned int len)
{
int err;
/* Info type is 'channel position'. */
avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x03);
err = fcp_avc_transaction(unit, buf, 12, buf, 256,
BIT(1) | BIT(2) | BIT(3) | BIT(4) |
BIT(5) | BIT(6) | BIT(7) | BIT(9));
if ((err >= 0) && (err < 8))
err = -EIO;
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
err = -ENOSYS;
else if (buf[0] == 0x0a) /* REJECTED */
err = -EINVAL;
else if (buf[0] == 0x0b) /* IN TRANSITION */
err = -EAGAIN;
if (err < 0)
goto end;
/* Pick up specific data. */
memmove(buf, buf + 10, err - 10);
err = 0;
end:
return err;
}
int avc_bridgeco_get_plug_section_type(struct fw_unit *unit,
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
unsigned int id, u8 *type)
{
u8 *buf;
int err;
/* section info includes charactors but this module don't need it */
buf = kzalloc(12, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
/* Info type is 'section info'. */
avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x07);
buf[10] = 0xff & ++id; /* section id */
err = fcp_avc_transaction(unit, buf, 12, buf, 12,
BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
BIT(6) | BIT(7) | BIT(9) | BIT(10));
if ((err >= 0) && (err < 8))
err = -EIO;
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
err = -ENOSYS;
else if (buf[0] == 0x0a) /* REJECTED */
err = -EINVAL;
else if (buf[0] == 0x0b) /* IN TRANSITION */
err = -EAGAIN;
if (err < 0)
goto end;
*type = buf[11];
err = 0;
end:
kfree(buf);
return err;
}
int avc_bridgeco_get_plug_input(struct fw_unit *unit,
u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 input[7])
{
int err;
u8 *buf;
buf = kzalloc(18, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
/* Info type is 'plug input'. */
avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x05);
err = fcp_avc_transaction(unit, buf, 16, buf, 16,
BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
BIT(6) | BIT(7));
if ((err >= 0) && (err < 8))
err = -EIO;
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
err = -ENOSYS;
else if (buf[0] == 0x0a) /* REJECTED */
err = -EINVAL;
else if (buf[0] == 0x0b) /* IN TRANSITION */
err = -EAGAIN;
if (err < 0)
goto end;
memcpy(input, buf + 10, 5);
err = 0;
end:
kfree(buf);
return err;
}
int avc_bridgeco_get_plug_strm_fmt(struct fw_unit *unit,
u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 *buf,
unsigned int *len, unsigned int eid)
{
int err;
/* check given buffer */
if ((buf == NULL) || (*len < 12)) {
err = -EINVAL;
goto end;
}
buf[0] = 0x01; /* AV/C STATUS */
buf[2] = 0x2f; /* AV/C STREAM FORMAT SUPPORT */
buf[3] = 0xc1; /* Bridgeco extension - List Request */
avc_bridgeco_fill_extension_addr(buf, addr);
buf[10] = 0xff & eid; /* Entry ID */
err = fcp_avc_transaction(unit, buf, 12, buf, *len,
BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
BIT(6) | BIT(7) | BIT(10));
if ((err >= 0) && (err < 12))
err = -EIO;
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
err = -ENOSYS;
else if (buf[0] == 0x0a) /* REJECTED */
err = -EINVAL;
else if (buf[0] == 0x0b) /* IN TRANSITION */
err = -EAGAIN;
else if (buf[10] != eid)
err = -EIO;
if (err < 0)
goto end;
/* Pick up 'stream format info'. */
memmove(buf, buf + 11, err - 11);
*len = err - 11;
err = 0;
end:
return err;
}
|
