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authorTakashi Iwai <tiwai@suse.de>2012-10-25 15:20:36 -0400
committerTakashi Iwai <tiwai@suse.de>2012-10-25 15:20:36 -0400
commitc64064ce9376a404e0888ca4a2985c8a4c16cec3 (patch)
treef34d3b84ca970fdb381dad9a195c1367ce5d10f4 /include/linux/usb/functionfs.h
parent21b3de881b38a84002c07b1b4bfb91892644e83f (diff)
parent456ba5a7802e58eccb5aa9751b3ab515ef99b9ca (diff)
Merge tag 'asoc-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.7 A couple of driver fixes, one that improves the interoperability of WM8994 with controllers that are sensitive to extra BCLK cycles and some build break fixes for ux500.
Diffstat (limited to 'include/linux/usb/functionfs.h')
-rw-r--r--include/linux/usb/functionfs.h167
1 files changed, 1 insertions, 166 deletions
diff --git a/include/linux/usb/functionfs.h b/include/linux/usb/functionfs.h
index a843d0851364..65d0a88dbc67 100644
--- a/include/linux/usb/functionfs.h
+++ b/include/linux/usb/functionfs.h
@@ -1,171 +1,8 @@
1#ifndef __LINUX_FUNCTIONFS_H__ 1#ifndef __LINUX_FUNCTIONFS_H__
2#define __LINUX_FUNCTIONFS_H__ 1 2#define __LINUX_FUNCTIONFS_H__ 1
3 3
4#include <uapi/linux/usb/functionfs.h>
4 5
5#include <linux/types.h>
6#include <linux/ioctl.h>
7
8#include <linux/usb/ch9.h>
9
10
11enum {
12 FUNCTIONFS_DESCRIPTORS_MAGIC = 1,
13 FUNCTIONFS_STRINGS_MAGIC = 2
14};
15
16
17#ifndef __KERNEL__
18
19/* Descriptor of an non-audio endpoint */
20struct usb_endpoint_descriptor_no_audio {
21 __u8 bLength;
22 __u8 bDescriptorType;
23
24 __u8 bEndpointAddress;
25 __u8 bmAttributes;
26 __le16 wMaxPacketSize;
27 __u8 bInterval;
28} __attribute__((packed));
29
30
31/*
32 * All numbers must be in little endian order.
33 */
34
35struct usb_functionfs_descs_head {
36 __le32 magic;
37 __le32 length;
38 __le32 fs_count;
39 __le32 hs_count;
40} __attribute__((packed));
41
42/*
43 * Descriptors format:
44 *
45 * | off | name | type | description |
46 * |-----+-----------+--------------+--------------------------------------|
47 * | 0 | magic | LE32 | FUNCTIONFS_{FS,HS}_DESCRIPTORS_MAGIC |
48 * | 4 | length | LE32 | length of the whole data chunk |
49 * | 8 | fs_count | LE32 | number of full-speed descriptors |
50 * | 12 | hs_count | LE32 | number of high-speed descriptors |
51 * | 16 | fs_descrs | Descriptor[] | list of full-speed descriptors |
52 * | | hs_descrs | Descriptor[] | list of high-speed descriptors |
53 *
54 * descs are just valid USB descriptors and have the following format:
55 *
56 * | off | name | type | description |
57 * |-----+-----------------+------+--------------------------|
58 * | 0 | bLength | U8 | length of the descriptor |
59 * | 1 | bDescriptorType | U8 | descriptor type |
60 * | 2 | payload | | descriptor's payload |
61 */
62
63struct usb_functionfs_strings_head {
64 __le32 magic;
65 __le32 length;
66 __le32 str_count;
67 __le32 lang_count;
68} __attribute__((packed));
69
70/*
71 * Strings format:
72 *
73 * | off | name | type | description |
74 * |-----+------------+-----------------------+----------------------------|
75 * | 0 | magic | LE32 | FUNCTIONFS_STRINGS_MAGIC |
76 * | 4 | length | LE32 | length of the data chunk |
77 * | 8 | str_count | LE32 | number of strings |
78 * | 12 | lang_count | LE32 | number of languages |
79 * | 16 | stringtab | StringTab[lang_count] | table of strings per lang |
80 *
81 * For each language there is one stringtab entry (ie. there are lang_count
82 * stringtab entires). Each StringTab has following format:
83 *
84 * | off | name | type | description |
85 * |-----+---------+-------------------+------------------------------------|
86 * | 0 | lang | LE16 | language code |
87 * | 2 | strings | String[str_count] | array of strings in given language |
88 *
89 * For each string there is one strings entry (ie. there are str_count
90 * string entries). Each String is a NUL terminated string encoded in
91 * UTF-8.
92 */
93
94#endif
95
96
97/*
98 * Events are delivered on the ep0 file descriptor, when the user mode driver
99 * reads from this file descriptor after writing the descriptors. Don't
100 * stop polling this descriptor.
101 */
102
103enum usb_functionfs_event_type {
104 FUNCTIONFS_BIND,
105 FUNCTIONFS_UNBIND,
106
107 FUNCTIONFS_ENABLE,
108 FUNCTIONFS_DISABLE,
109
110 FUNCTIONFS_SETUP,
111
112 FUNCTIONFS_SUSPEND,
113 FUNCTIONFS_RESUME
114};
115
116/* NOTE: this structure must stay the same size and layout on
117 * both 32-bit and 64-bit kernels.
118 */
119struct usb_functionfs_event {
120 union {
121 /* SETUP: packet; DATA phase i/o precedes next event
122 *(setup.bmRequestType & USB_DIR_IN) flags direction */
123 struct usb_ctrlrequest setup;
124 } __attribute__((packed)) u;
125
126 /* enum usb_functionfs_event_type */
127 __u8 type;
128 __u8 _pad[3];
129} __attribute__((packed));
130
131
132/* Endpoint ioctls */
133/* The same as in gadgetfs */
134
135/* IN transfers may be reported to the gadget driver as complete
136 * when the fifo is loaded, before the host reads the data;
137 * OUT transfers may be reported to the host's "client" driver as
138 * complete when they're sitting in the FIFO unread.
139 * THIS returns how many bytes are "unclaimed" in the endpoint fifo
140 * (needed for precise fault handling, when the hardware allows it)
141 */
142#define FUNCTIONFS_FIFO_STATUS _IO('g', 1)
143
144/* discards any unclaimed data in the fifo. */
145#define FUNCTIONFS_FIFO_FLUSH _IO('g', 2)
146
147/* resets endpoint halt+toggle; used to implement set_interface.
148 * some hardware (like pxa2xx) can't support this.
149 */
150#define FUNCTIONFS_CLEAR_HALT _IO('g', 3)
151
152/* Specific for functionfs */
153
154/*
155 * Returns reverse mapping of an interface. Called on EP0. If there
156 * is no such interface returns -EDOM. If function is not active
157 * returns -ENODEV.
158 */
159#define FUNCTIONFS_INTERFACE_REVMAP _IO('g', 128)
160
161/*
162 * Returns real bEndpointAddress of an endpoint. If function is not
163 * active returns -ENODEV.
164 */
165#define FUNCTIONFS_ENDPOINT_REVMAP _IO('g', 129)
166
167
168#ifdef __KERNEL__
169 6
170struct ffs_data; 7struct ffs_data;
171struct usb_composite_dev; 8struct usb_composite_dev;
@@ -197,5 +34,3 @@ static void functionfs_release_dev_callback(struct ffs_data *ffs_data)
197 34
198 35
199#endif 36#endif
200
201#endif