73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
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/*
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* Copyright (C) 2007 Google, Inc.
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* Copyright (c) 2009-2010, The Linux Foundation. All rights reserved.
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* Author: Mike Lockwood <lockwood@android.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __ASM_ARCH_MSM_GPIO_TLMM_V1_H
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#define __ASM_ARCH_MSM_GPIO_TLMM_V1_H
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/* GPIO TLMM (Top Level Multiplexing) Definitions */
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/* GPIO TLMM: Function -- GPIO specific */
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/* GPIO TLMM: Direction */
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enum {
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GPIO_CFG_INPUT,
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GPIO_CFG_OUTPUT,
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};
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/* GPIO TLMM: Pullup/Pulldown */
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enum {
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GPIO_CFG_NO_PULL,
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GPIO_CFG_PULL_DOWN,
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GPIO_CFG_KEEPER,
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GPIO_CFG_PULL_UP,
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};
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/* GPIO TLMM: Drive Strength */
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enum {
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GPIO_CFG_2MA,
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GPIO_CFG_4MA,
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GPIO_CFG_6MA,
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GPIO_CFG_8MA,
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GPIO_CFG_10MA,
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GPIO_CFG_12MA,
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GPIO_CFG_14MA,
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GPIO_CFG_16MA,
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};
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enum {
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GPIO_CFG_ENABLE,
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GPIO_CFG_DISABLE,
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};
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#define GPIO_CFG(gpio, func, dir, pull, drvstr) \
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((((gpio) & 0x3FF) << 4) | \
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((func) & 0xf) | \
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(((dir) & 0x1) << 14) | \
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(((pull) & 0x3) << 15) | \
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(((drvstr) & 0xF) << 17))
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/**
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* extract GPIO pin from bit-field used for gpio_tlmm_config
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*/
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#define GPIO_PIN(gpio_cfg) (((gpio_cfg) >> 4) & 0x3ff)
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#define GPIO_FUNC(gpio_cfg) (((gpio_cfg) >> 0) & 0xf)
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#define GPIO_DIR(gpio_cfg) (((gpio_cfg) >> 14) & 0x1)
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#define GPIO_PULL(gpio_cfg) (((gpio_cfg) >> 15) & 0x3)
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#define GPIO_DRVSTR(gpio_cfg) (((gpio_cfg) >> 17) & 0xf)
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int gpio_tlmm_config(unsigned config, unsigned disable);
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#endif
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