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