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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 *4 * Copyright (C) 2005 Mike Isely <isely@pobox.com>5 */6#ifndef __PVRUSB2_CTRL_H7#define __PVRUSB2_CTRL_H8 9struct pvr2_ctrl;10 11enum pvr2_ctl_type {12 pvr2_ctl_int = 0,13 pvr2_ctl_enum = 1,14 pvr2_ctl_bitmask = 2,15 pvr2_ctl_bool = 3,16};17 18 19/* Set the given control. */20int pvr2_ctrl_set_value(struct pvr2_ctrl *,int val);21 22/* Set/clear specific bits of the given control. */23int pvr2_ctrl_set_mask_value(struct pvr2_ctrl *,int mask,int val);24 25/* Get the current value of the given control. */26int pvr2_ctrl_get_value(struct pvr2_ctrl *,int *valptr);27 28/* Retrieve control's type */29enum pvr2_ctl_type pvr2_ctrl_get_type(struct pvr2_ctrl *);30 31/* Retrieve control's maximum value (int type) */32int pvr2_ctrl_get_max(struct pvr2_ctrl *);33 34/* Retrieve control's minimum value (int type) */35int pvr2_ctrl_get_min(struct pvr2_ctrl *);36 37/* Retrieve control's default value (any type) */38int pvr2_ctrl_get_def(struct pvr2_ctrl *, int *valptr);39 40/* Retrieve control's enumeration count (enum only) */41int pvr2_ctrl_get_cnt(struct pvr2_ctrl *);42 43/* Retrieve control's valid mask bits (bit mask only) */44int pvr2_ctrl_get_mask(struct pvr2_ctrl *);45 46/* Retrieve the control's name */47const char *pvr2_ctrl_get_name(struct pvr2_ctrl *);48 49/* Retrieve the control's desc */50const char *pvr2_ctrl_get_desc(struct pvr2_ctrl *);51 52/* Retrieve a control enumeration or bit mask value */53int pvr2_ctrl_get_valname(struct pvr2_ctrl *,int,char *,unsigned int,54 unsigned int *);55 56/* Return true if control is writable */57int pvr2_ctrl_is_writable(struct pvr2_ctrl *);58 59/* Return V4L flags value for control (or zero if there is no v4l control60 actually under this control) */61unsigned int pvr2_ctrl_get_v4lflags(struct pvr2_ctrl *);62 63/* Return V4L ID for this control or zero if none */64int pvr2_ctrl_get_v4lid(struct pvr2_ctrl *);65 66/* Return true if control has custom symbolic representation */67int pvr2_ctrl_has_custom_symbols(struct pvr2_ctrl *);68 69/* Convert a given mask/val to a custom symbolic value */70int pvr2_ctrl_custom_value_to_sym(struct pvr2_ctrl *,71 int mask,int val,72 char *buf,unsigned int maxlen,73 unsigned int *len);74 75/* Convert a symbolic value to a mask/value pair */76int pvr2_ctrl_custom_sym_to_value(struct pvr2_ctrl *,77 const char *buf,unsigned int len,78 int *maskptr,int *valptr);79 80/* Convert a given mask/val to a symbolic value */81int pvr2_ctrl_value_to_sym(struct pvr2_ctrl *,82 int mask,int val,83 char *buf,unsigned int maxlen,84 unsigned int *len);85 86/* Convert a symbolic value to a mask/value pair */87int pvr2_ctrl_sym_to_value(struct pvr2_ctrl *,88 const char *buf,unsigned int len,89 int *maskptr,int *valptr);90 91/* Convert a given mask/val to a symbolic value - must already be92 inside of critical region. */93int pvr2_ctrl_value_to_sym_internal(struct pvr2_ctrl *,94 int mask,int val,95 char *buf,unsigned int maxlen,96 unsigned int *len);97 98#endif /* __PVRUSB2_CTRL_H */99