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/***********************license start***********************************
* Copyright (c) 2003-2017 Cavium Inc. (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* * Neither the name of Cavium Inc. nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* This Software, including technical data, may be subject to U.S. export
* control laws, including the U.S. Export Administration Act and its
* associated regulations, and may be subject to export or import
* regulations in other countries.
*
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT
* TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT,
* QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK
* ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
***********************license end**************************************/
/**
* @file
*
* General Purpose IO interface.
*
* <hr>$Revision: 49448 $<hr>
*
* @addtogroup hal
* @{
*/
/**
* Initialize a single GPIO as either an input or output. If it is
* an output, also set its output value.
*
* @param node Node to use in a Numa setup. Can be an exact ID or a special
* value.
* @param gpio GPIO to initialize
* @param is_output Non zero if this GPIO should be an output
* @param output_value
* Value of the GPIO if it should be an output. Not used if the
* GPIO isn't an output.
*
* @return Zero on success, negative ob failure
*/
extern int bdk_gpio_initialize(bdk_node_t node, int gpio, int is_output, int output_value);
/**
* GPIO Read Data
*
* @param node Node GPIO block is on
* @param gpio_block GPIO block to access. Each block contains up to 64 GPIOs
*
* @return Status of the GPIO pins for the given block
*/
extern uint64_t bdk_gpio_read(bdk_node_t node, int gpio_block);
/**
* GPIO Clear pin
*
* @param node Node GPIO block is on
* @param gpio_block GPIO block to access. Each block contains up to 64 GPIOs
* @param clear_mask Bit mask to indicate which bits to drive to '0'.
*/
extern void bdk_gpio_clear(bdk_node_t node, int gpio_block, uint64_t clear_mask);
/**
* GPIO Set pin
*
* @param node Node GPIO block is on
* @param gpio_block GPIO block to access. Each block contains up to 64 GPIOs
* @param set_mask Bit mask to indicate which bits to drive to '1'.
*/
extern void bdk_gpio_set(bdk_node_t node, int gpio_block, uint64_t set_mask);
/** GPIO Select pin
*
* @param node CPU node
* @param gpio GPIO number
* @param pin Pin number
*/
extern void bdk_gpio_select_pin(bdk_node_t node, int gpio, int pin);
/**
* Return the number of GPIO pins on this chip
*
* @return Number of GPIO pins
*/
extern int bdk_gpio_get_num(void);
/** @} */
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