111 lines
2.4 KiB
C
111 lines
2.4 KiB
C
/* pinmux_dev_galileo.c - pinmux_dev driver for Galileo */
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <nanokernel.h>
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#include <board.h>
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#include <device.h>
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#include <init.h>
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#include <pinmux.h>
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#include <i2c.h>
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#include <gpio.h>
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#include <pwm.h>
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#include <pinmux/pinmux.h>
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#include "pinmux_galileo.h"
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static int galileo_dev_pullup(struct device *dev,
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uint32_t pin,
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uint8_t func)
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{
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/*
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* Nothing to do.
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* On Galileo the pullup operation is handled through the selection
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* of an actual pin
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*/
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ARG_UNUSED(dev);
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ARG_UNUSED(pin);
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ARG_UNUSED(func);
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return 0;
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}
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static int galileo_dev_input_enable(struct device *dev,
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uint32_t pin,
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uint8_t func)
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{
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/*
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* Nothing to do.
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* On Galileo select a pin for input enabling is handled through the
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* selection of an actual pin user configuration.
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*/
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ARG_UNUSED(dev);
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ARG_UNUSED(pin);
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ARG_UNUSED(func);
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return 0;
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}
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static int galileo_dev_set(struct device *dev,
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uint32_t pin,
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uint32_t func)
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{
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if (pin > PINMUX_NUM_PINS) {
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return -EINVAL;
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}
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return _galileo_pinmux_set_pin(dev, pin, func);
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}
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static int galileo_dev_get(struct device *dev,
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uint32_t pin,
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uint32_t *func)
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{
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if (pin > PINMUX_NUM_PINS) {
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return -EINVAL;
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}
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return _galileo_pinmux_get_pin(dev, pin, func);
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}
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static struct pinmux_driver_api api_funcs = {
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.set = galileo_dev_set,
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.get = galileo_dev_get,
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.pullup = galileo_dev_pullup,
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.input = galileo_dev_input_enable
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};
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static int pinmux_dev_galileo_initialize(struct device *port)
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{
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return 0;
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}
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/*
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* This needs to be a level 2 or later init process due to the following
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* dependency chain:
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* 0 - I2C
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* 1 - PCA9535 and PCAL9685
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* 2 - pinmux
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*/
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DEVICE_AND_API_INIT(pmux_dev, CONFIG_PINMUX_DEV_NAME,
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&pinmux_dev_galileo_initialize,
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&galileo_pinmux_driver, NULL,
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POST_KERNEL, CONFIG_PINMUX_INIT_PRIORITY,
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&api_funcs);
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