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d855497e MI |
1 | /* |
2 | * | |
d855497e MI |
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, | |
33213963 | 29 | pvr2_ctl_bool = 3, |
d855497e MI |
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 *); | |
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 | ||
a761f431 MI |
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 | ||
d855497e MI |
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 | */ |