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- /*
- * Copyright (C) 2012 Samsung Electronics
- * Abhilash Kesavan <a.kesavan@samsung.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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, or (at your option) any later version.
- *
- * 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 __ASM_ARM_ARCH_PINMUX_H
- #define __ASM_ARM_ARCH_PINMUX_H
- #include "periph.h"
- /*
- * Flags for setting specific configarations of peripherals.
- * List will grow with support for more devices getting added.
- */
- enum {
- PINMUX_FLAG_NONE = 0x00000000,
- /* Flags for eMMC */
- PINMUX_FLAG_8BIT_MODE = 1 << 0, /* SDMMC 8-bit mode */
- /* Flags for SROM controller */
- PINMUX_FLAG_BANK = 3 << 0, /* bank number (0-3) */
- PINMUX_FLAG_16BIT = 1 << 2, /* 16-bit width */
- };
- /**
- * Configures the pinmux for a particular peripheral.
- *
- * Each gpio can be configured in many different ways (4 bits on exynos)
- * such as "input", "output", "special function", "external interrupt"
- * etc. This function will configure the peripheral pinmux along with
- * pull-up/down and drive strength.
- *
- * @param peripheral peripheral to be configured
- * @param flags configure flags
- * @return 0 if ok, -1 on error (e.g. unsupported peripheral)
- */
- int exynos_pinmux_config(int peripheral, int flags);
- /**
- * Decode the peripheral id using the interrpt numbers.
- *
- * @param blob Device tree blob
- * @param node FDT I2C node to find
- * @return peripheral id if ok, PERIPH_ID_NONE on error
- */
- int pinmux_decode_periph_id(const void *blob, int node);
- #endif
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