diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-ctrl.h')
-rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-ctrl.h | 115 |
1 files changed, 115 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 00000000000..9d74151a37d --- /dev/null +++ b/drivers/media/video/pvrusb2/pvrusb2-ctrl.h @@ -0,0 +1,115 @@ +/* + * + * $Id$ + * + * Copyright (C) 2005 Mike Isely <isely@pobox.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ +#ifndef __PVRUSB2_CTRL_H +#define __PVRUSB2_CTRL_H + +struct pvr2_ctrl; + +enum pvr2_ctl_type { + pvr2_ctl_int = 0, + pvr2_ctl_enum = 1, + pvr2_ctl_bitmask = 2, +}; + + +/* Set the given control. */ +int pvr2_ctrl_set_value(struct pvr2_ctrl *,int val); + +/* Set/clear specific bits of the given control. */ +int pvr2_ctrl_set_mask_value(struct pvr2_ctrl *,int mask,int val); + +/* Get the current value of the given control. */ +int pvr2_ctrl_get_value(struct pvr2_ctrl *,int *valptr); + +/* Retrieve control's type */ +enum pvr2_ctl_type pvr2_ctrl_get_type(struct pvr2_ctrl *); + +/* Retrieve control's maximum value (int type) */ +int pvr2_ctrl_get_max(struct pvr2_ctrl *); + +/* Retrieve control's minimum value (int type) */ +int pvr2_ctrl_get_min(struct pvr2_ctrl *); + +/* Retrieve control's default value (any type) */ +int pvr2_ctrl_get_def(struct pvr2_ctrl *); + +/* Retrieve control's enumeration count (enum only) */ +int pvr2_ctrl_get_cnt(struct pvr2_ctrl *); + +/* Retrieve control's valid mask bits (bit mask only) */ +int pvr2_ctrl_get_mask(struct pvr2_ctrl *); + +/* Retrieve the control's name */ +const char *pvr2_ctrl_get_name(struct pvr2_ctrl *); + +/* Retrieve the control's desc */ +const char *pvr2_ctrl_get_desc(struct pvr2_ctrl *); + +/* Retrieve a control enumeration or bit mask value */ +int pvr2_ctrl_get_valname(struct pvr2_ctrl *,int,char *,unsigned int, + unsigned int *); + +/* Return true if control is writable */ +int pvr2_ctrl_is_writable(struct pvr2_ctrl *); + +/* Return true if control has custom symbolic representation */ +int pvr2_ctrl_has_custom_symbols(struct pvr2_ctrl *); + +/* Convert a given mask/val to a custom symbolic value */ +int pvr2_ctrl_custom_value_to_sym(struct pvr2_ctrl *, + int mask,int val, + char *buf,unsigned int maxlen, + unsigned int *len); + +/* Convert a symbolic value to a mask/value pair */ +int pvr2_ctrl_custom_sym_to_value(struct pvr2_ctrl *, + const char *buf,unsigned int len, + int *maskptr,int *valptr); + +/* Convert a given mask/val to a symbolic value */ +int pvr2_ctrl_value_to_sym(struct pvr2_ctrl *, + int mask,int val, + char *buf,unsigned int maxlen, + unsigned int *len); + +/* Convert a symbolic value to a mask/value pair */ +int pvr2_ctrl_sym_to_value(struct pvr2_ctrl *, + const char *buf,unsigned int len, + int *maskptr,int *valptr); + +/* Convert a given mask/val to a symbolic value - must already be + inside of critical region. */ +int pvr2_ctrl_value_to_sym_internal(struct pvr2_ctrl *, + int mask,int val, + char *buf,unsigned int maxlen, + unsigned int *len); + +#endif /* __PVRUSB2_CTRL_H */ + +/* + Stuff for Emacs to see, in order to encourage consistent editing style: + *** Local Variables: *** + *** mode: c *** + *** fill-column: 75 *** + *** tab-width: 8 *** + *** c-basic-offset: 8 *** + *** End: *** + */ |