| Tom Warren | dc89ad1 | 2012-12-11 13:34:12 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved. |
| 3 | * |
| 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. |
| 7 | * |
| 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 |
| 11 | * more details. |
| 12 | * |
| 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/>. |
| 15 | */ |
| 16 | |
| 17 | /* Tegra high-level function multiplexing */ |
| 18 | |
| 19 | #ifndef _TEGRA_FUNCMUX_H_ |
| 20 | #define _TEGRA_FUNCMUX_H_ |
| 21 | |
| 22 | /** |
| 23 | * Select a config for a particular peripheral. |
| 24 | * |
| 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, |
| 29 | * |
| 30 | * This function also disables tristate for the function's pins, |
| 31 | * so that they operate in normal mode. |
| 32 | * |
| 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) |
| 36 | */ |
| 37 | int funcmux_select(enum periph_id id, int config); |
| 38 | |
| 39 | #endif /* _TEGRA_FUNCMUX_H_ */ |