52648623e0
Used command line to remove empty lines at end of file:
find . -type f -exec sed -i -e :a -e '/^\n*$/{$d;N;};/\n$/ba' {} \;
Change-Id: I816ac9666b6dbb7c7e47843672f0d5cc499766a3
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: http://review.coreboot.org/10446
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
153 lines
4.6 KiB
C
153 lines
4.6 KiB
C
/*
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* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google, Inc. nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <arch/io.h>
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#include <gpio.h>
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#include <soc/iomap.h>
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/*******************************************************
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Function description: check for invalid GPIO #
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Arguments :
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gpio_t gpio - Gpio number
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Return : GPIO Valid(0)/Invalid(1)
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*******************************************************/
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static inline int gpio_not_valid(gpio_t gpio)
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{
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return (gpio > GPIO_MAX_NUM);
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}
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/*******************************************************
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Function description: configure GPIO functinality
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Arguments :
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gpio_t gpio - Gpio number
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unsigned func - Functionality number
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unsigned pull - pull up/down, no pull range(0-3)
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unsigned drvstr - range (0 - 7)-> (2- 16)MA steps of 2
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unsigned enable - 0 Disable, 1 - Enable.
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Return : None
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*******************************************************/
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void gpio_tlmm_config_set(gpio_t gpio, unsigned func,
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unsigned pull, unsigned drvstr,
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unsigned enable)
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{
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unsigned val = 0;
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if (gpio_not_valid(gpio))
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return;
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val |= (pull & GPIO_CFG_PULL_MASK) << GPIO_CFG_PULL_SHIFT;
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val |= (func & GPIO_CFG_FUNC_MASK) << GPIO_CFG_FUNC_SHIFT;
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val |= (drvstr & GPIO_CFG_DRV_MASK) << GPIO_CFG_DRV_SHIFT;
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val |= (enable & GPIO_CFG_OE_MASK) << GPIO_CFG_OE_SHIFT;
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write32(GPIO_CONFIG_ADDR(gpio), val);
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}
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/*******************************************************
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Function description: Get GPIO configuration
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Arguments :
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gpio_t gpio - Gpio number
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unsigned *func - Functionality number
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unsigned *pull - pull up/down, no pull range(0-3)
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unsigned *drvstr - range (0 - 7)-> (2- 16)MA steps of 2
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unsigned *enable - 0 - Disable, 1- Enable.
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Return : None
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*******************************************************/
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void gpio_tlmm_config_get(gpio_t gpio, unsigned *func,
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unsigned *pull, unsigned *drvstr,
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unsigned *enable)
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{
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unsigned val;
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void *addr = GPIO_CONFIG_ADDR(gpio);
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if (gpio_not_valid(gpio))
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return;
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val = read32(addr);
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*pull = (val >> GPIO_CFG_PULL_SHIFT) & GPIO_CFG_PULL_MASK;
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*func = (val >> GPIO_CFG_FUNC_SHIFT) & GPIO_CFG_FUNC_MASK;
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*drvstr = (val >> GPIO_CFG_DRV_SHIFT) & GPIO_CFG_DRV_MASK;
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*enable = (val >> GPIO_CFG_OE_SHIFT) & GPIO_CFG_OE_MASK;
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}
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/*******************************************************
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Function description: get GPIO IO functinality details
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Arguments :
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gpio_t gpio - Gpio number
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unsigned *in - Value of GPIO input
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unsigned *out - Value of GPIO output
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Return : None
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*******************************************************/
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int gpio_get(gpio_t gpio)
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{
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if (gpio_not_valid(gpio))
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return -1;
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return (read32(GPIO_IN_OUT_ADDR(gpio)) >> GPIO_IO_IN_SHIFT) &
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GPIO_IO_IN_MASK;
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}
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void gpio_set(gpio_t gpio, int value)
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{
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if (gpio_not_valid(gpio))
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return;
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write32(GPIO_IN_OUT_ADDR(gpio), (value & 1) << GPIO_IO_OUT_SHIFT);
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}
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void gpio_input_pulldown(gpio_t gpio)
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{
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gpio_tlmm_config_set(gpio, GPIO_FUNC_DISABLE,
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GPIO_PULL_DOWN, GPIO_2MA, GPIO_DISABLE);
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}
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void gpio_input_pullup(gpio_t gpio)
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{
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gpio_tlmm_config_set(gpio, GPIO_FUNC_DISABLE,
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GPIO_PULL_UP, GPIO_2MA, GPIO_DISABLE);
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}
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void gpio_input(gpio_t gpio)
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{
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gpio_tlmm_config_set(gpio, GPIO_FUNC_DISABLE,
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GPIO_NO_PULL, GPIO_2MA, GPIO_DISABLE);
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}
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