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