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40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
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/*
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* Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* Tegra high-level function multiplexing */
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#ifndef _TEGRA_FUNCMUX_H_
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#define _TEGRA_FUNCMUX_H_
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/**
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* Select a config for a particular peripheral.
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*
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* Each peripheral can operate through a number of configurations,
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* which are sets of pins that it uses to bring out its signals.
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* The basic config is 0, and higher numbers indicate different
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* pinmux settings to bring the peripheral out on other pins,
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*
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* This function also disables tristate for the function's pins,
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* so that they operate in normal mode.
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*
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* @param id Peripheral id
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* @param config Configuration to use (FUNCMUX_...), 0 for default
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* @return 0 if ok, -1 on error (e.g. incorrect id or config)
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*/
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int funcmux_select(enum periph_id id, int config);
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#endif /* _TEGRA_FUNCMUX_H_ */
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