dc/gpio/gpio_service.h

0001 /*
0002  * Copyright 2012-15 Advanced Micro Devices, Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: AMD
0023  *
0024  */
0025
0026 #ifndef __DAL_GPIO_SERVICE_H__
0027 #define __DAL_GPIO_SERVICE_H__
0028
0029 struct hw_translate;
0030 struct hw_factory;
0031
0032 struct gpio_service {
0033     struct dc_context *ctx;
0034     struct hw_translate translate;
0035     struct hw_factory factory;
0036     /*
0037      * @brief
0038      * Business storage.
0039      * one byte For each member of 'enum gpio_id'
0040      */
0041     char *busyness[GPIO_ID_COUNT];
0042 };
0043
0044 enum gpio_result dal_gpio_service_open(
0045     struct gpio *gpio);
0046
0047 void dal_gpio_service_close(
0048     struct gpio_service *service,
0049     struct hw_gpio_pin **ptr);
0050
0051 enum gpio_result dal_gpio_service_lock(
0052     struct gpio_service *service,
0053     enum gpio_id id,
0054     uint32_t en);
0055
0056 enum gpio_result dal_gpio_service_unlock(
0057     struct gpio_service *service,
0058     enum gpio_id id,
0059     uint32_t en);
0060
0061 #endif