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Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-ctrl.h')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-ctrl.h123
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-ctrl.h b/drivers/media/video/pvrusb2/pvrusb2-ctrl.h
new file mode 100644
index 000000000000..c1680053cd64
--- /dev/null
+++ b/drivers/media/video/pvrusb2/pvrusb2-ctrl.h
@@ -0,0 +1,123 @@
1/*
2 *
3 * $Id$
4 *
5 * Copyright (C) 2005 Mike Isely <isely@pobox.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21#ifndef __PVRUSB2_CTRL_H
22#define __PVRUSB2_CTRL_H
23
24struct pvr2_ctrl;
25
26enum pvr2_ctl_type {
27 pvr2_ctl_int = 0,
28 pvr2_ctl_enum = 1,
29 pvr2_ctl_bitmask = 2,
30 pvr2_ctl_bool = 3,
31};
32
33
34/* Set the given control. */
35int pvr2_ctrl_set_value(struct pvr2_ctrl *,int val);
36
37/* Set/clear specific bits of the given control. */
38int pvr2_ctrl_set_mask_value(struct pvr2_ctrl *,int mask,int val);
39
40/* Get the current value of the given control. */
41int pvr2_ctrl_get_value(struct pvr2_ctrl *,int *valptr);
42
43/* Retrieve control's type */
44enum pvr2_ctl_type pvr2_ctrl_get_type(struct pvr2_ctrl *);
45
46/* Retrieve control's maximum value (int type) */
47int pvr2_ctrl_get_max(struct pvr2_ctrl *);
48
49/* Retrieve control's minimum value (int type) */
50int pvr2_ctrl_get_min(struct pvr2_ctrl *);
51
52/* Retrieve control's default value (any type) */
53int pvr2_ctrl_get_def(struct pvr2_ctrl *);
54
55/* Retrieve control's enumeration count (enum only) */
56int pvr2_ctrl_get_cnt(struct pvr2_ctrl *);
57
58/* Retrieve control's valid mask bits (bit mask only) */
59int pvr2_ctrl_get_mask(struct pvr2_ctrl *);
60
61/* Retrieve the control's name */
62const char *pvr2_ctrl_get_name(struct pvr2_ctrl *);
63
64/* Retrieve the control's desc */
65const char *pvr2_ctrl_get_desc(struct pvr2_ctrl *);
66
67/* Retrieve a control enumeration or bit mask value */
68int pvr2_ctrl_get_valname(struct pvr2_ctrl *,int,char *,unsigned int,
69 unsigned int *);
70
71/* Return true if control is writable */
72int pvr2_ctrl_is_writable(struct pvr2_ctrl *);
73
74/* Return V4L flags value for control (or zero if there is no v4l control
75 actually under this control) */
76unsigned int pvr2_ctrl_get_v4lflags(struct pvr2_ctrl *);
77
78/* Return V4L ID for this control or zero if none */
79int pvr2_ctrl_get_v4lid(struct pvr2_ctrl *);
80
81/* Return true if control has custom symbolic representation */
82int pvr2_ctrl_has_custom_symbols(struct pvr2_ctrl *);
83
84/* Convert a given mask/val to a custom symbolic value */
85int pvr2_ctrl_custom_value_to_sym(struct pvr2_ctrl *,
86 int mask,int val,
87 char *buf,unsigned int maxlen,
88 unsigned int *len);
89
90/* Convert a symbolic value to a mask/value pair */
91int pvr2_ctrl_custom_sym_to_value(struct pvr2_ctrl *,
92 const char *buf,unsigned int len,
93 int *maskptr,int *valptr);
94
95/* Convert a given mask/val to a symbolic value */
96int pvr2_ctrl_value_to_sym(struct pvr2_ctrl *,
97 int mask,int val,
98 char *buf,unsigned int maxlen,
99 unsigned int *len);
100
101/* Convert a symbolic value to a mask/value pair */
102int pvr2_ctrl_sym_to_value(struct pvr2_ctrl *,
103 const char *buf,unsigned int len,
104 int *maskptr,int *valptr);
105
106/* Convert a given mask/val to a symbolic value - must already be
107 inside of critical region. */
108int pvr2_ctrl_value_to_sym_internal(struct pvr2_ctrl *,
109 int mask,int val,
110 char *buf,unsigned int maxlen,
111 unsigned int *len);
112
113#endif /* __PVRUSB2_CTRL_H */
114
115/*
116 Stuff for Emacs to see, in order to encourage consistent editing style:
117 *** Local Variables: ***
118 *** mode: c ***
119 *** fill-column: 75 ***
120 *** tab-width: 8 ***
121 *** c-basic-offset: 8 ***
122 *** End: ***
123 */