109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
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/*
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*
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*
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* Copyright (C) 2005 Mike Isely <isely@pobox.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __PVRUSB2_CTRL_H
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#define __PVRUSB2_CTRL_H
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struct pvr2_ctrl;
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enum pvr2_ctl_type {
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pvr2_ctl_int = 0,
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pvr2_ctl_enum = 1,
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pvr2_ctl_bitmask = 2,
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pvr2_ctl_bool = 3,
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};
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/* Set the given control. */
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int pvr2_ctrl_set_value(struct pvr2_ctrl *,int val);
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/* Set/clear specific bits of the given control. */
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int pvr2_ctrl_set_mask_value(struct pvr2_ctrl *,int mask,int val);
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/* Get the current value of the given control. */
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int pvr2_ctrl_get_value(struct pvr2_ctrl *,int *valptr);
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/* Retrieve control's type */
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enum pvr2_ctl_type pvr2_ctrl_get_type(struct pvr2_ctrl *);
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/* Retrieve control's maximum value (int type) */
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int pvr2_ctrl_get_max(struct pvr2_ctrl *);
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/* Retrieve control's minimum value (int type) */
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int pvr2_ctrl_get_min(struct pvr2_ctrl *);
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/* Retrieve control's default value (any type) */
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int pvr2_ctrl_get_def(struct pvr2_ctrl *, int *valptr);
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/* Retrieve control's enumeration count (enum only) */
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int pvr2_ctrl_get_cnt(struct pvr2_ctrl *);
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/* Retrieve control's valid mask bits (bit mask only) */
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int pvr2_ctrl_get_mask(struct pvr2_ctrl *);
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/* Retrieve the control's name */
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const char *pvr2_ctrl_get_name(struct pvr2_ctrl *);
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/* Retrieve the control's desc */
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const char *pvr2_ctrl_get_desc(struct pvr2_ctrl *);
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/* Retrieve a control enumeration or bit mask value */
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int pvr2_ctrl_get_valname(struct pvr2_ctrl *,int,char *,unsigned int,
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unsigned int *);
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/* Return true if control is writable */
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int pvr2_ctrl_is_writable(struct pvr2_ctrl *);
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/* Return V4L flags value for control (or zero if there is no v4l control
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actually under this control) */
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unsigned int pvr2_ctrl_get_v4lflags(struct pvr2_ctrl *);
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/* Return V4L ID for this control or zero if none */
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int pvr2_ctrl_get_v4lid(struct pvr2_ctrl *);
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/* Return true if control has custom symbolic representation */
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int pvr2_ctrl_has_custom_symbols(struct pvr2_ctrl *);
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/* Convert a given mask/val to a custom symbolic value */
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int pvr2_ctrl_custom_value_to_sym(struct pvr2_ctrl *,
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int mask,int val,
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char *buf,unsigned int maxlen,
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unsigned int *len);
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/* Convert a symbolic value to a mask/value pair */
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int pvr2_ctrl_custom_sym_to_value(struct pvr2_ctrl *,
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const char *buf,unsigned int len,
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int *maskptr,int *valptr);
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/* Convert a given mask/val to a symbolic value */
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int pvr2_ctrl_value_to_sym(struct pvr2_ctrl *,
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int mask,int val,
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char *buf,unsigned int maxlen,
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unsigned int *len);
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/* Convert a symbolic value to a mask/value pair */
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int pvr2_ctrl_sym_to_value(struct pvr2_ctrl *,
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const char *buf,unsigned int len,
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int *maskptr,int *valptr);
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/* Convert a given mask/val to a symbolic value - must already be
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inside of critical region. */
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int pvr2_ctrl_value_to_sym_internal(struct pvr2_ctrl *,
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int mask,int val,
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char *buf,unsigned int maxlen,
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unsigned int *len);
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#endif /* __PVRUSB2_CTRL_H */
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