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ZTEX |
/*%
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ZTEX Firmware Kit for EZ-USB FX3 Microcontrollers
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Copyright (C) 2009-2017 ZTEX GmbH.
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http://www.ztex.de
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This Source Code Form is subject to the terms of the Mozilla Public
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License, v. 2.0. If a copy of the MPL was not distributed with this file,
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You can obtain one at http://mozilla.org/MPL/2.0/.
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Alternatively, the contents of this file may be used under the terms
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of the GNU General Public License Version 3, as described below:
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 3 as
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published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see http://www.gnu.org/licenses/.
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%*/
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/*
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GPIO functions.
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*/
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#include <cyu3gpio.h>
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#ifndef _ZTEX_GPIO_C_
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#define _ZTEX_GPIO_C_
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uint8_t ztex_gpio_set_output(uint8_t num, CyBool_t val) {
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CyU3PGpioSimpleConfig_t cfg;
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cfg.outValue = val;
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cfg.driveLowEn = CyTrue;
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cfg.driveHighEn = CyTrue;
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cfg.inputEn = CyFalse;
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cfg.intrMode = CY_U3P_GPIO_NO_INTR;
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ZTEX_REC_RET( CyU3PGpioSetSimpleConfig( num, &cfg) );
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return 0;
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}
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void ztex_gpio_set (uint8_t num, CyBool_t val) {
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CyU3PReturnStatus_t status;
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status = CyU3PGpioSimpleSetValue(num, val);
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if ( status ) ZTEX_LOG("Error setting GPIO %d: %d", num, status);
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}
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CyBool_t ztex_gpio_get (uint8_t num) {
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CyBool_t val;
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CyU3PReturnStatus_t status;
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status = CyU3PGpioSimpleGetValue(num, &val);
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if ( status ) ZTEX_LOG("Error reading GPIO %d: %d", num, status);
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return val;
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}
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uint8_t ztex_gpio_set_open_drain(uint8_t num, CyBool_t val) {
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CyU3PGpioSimpleConfig_t cfg;
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cfg.outValue = val;
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cfg.driveLowEn = CyTrue;
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cfg.driveHighEn = CyFalse;
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cfg.inputEn = CyTrue;
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cfg.intrMode = CY_U3P_GPIO_NO_INTR;
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ZTEX_REC_RET( CyU3PGpioSetSimpleConfig( num, &cfg) );
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return 0;
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}
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uint8_t ztex_gpio_set_open_source(uint8_t num, CyBool_t val) {
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CyU3PGpioSimpleConfig_t cfg;
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cfg.outValue = val;
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cfg.driveLowEn = CyFalse;
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cfg.driveHighEn = CyTrue;
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cfg.inputEn = CyTrue;
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cfg.intrMode = CY_U3P_GPIO_NO_INTR;
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ZTEX_REC_RET( CyU3PGpioSetSimpleConfig( num, &cfg) );
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return 0;
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}
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uint8_t ztex_gpio_set_input(uint8_t num) {
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CyU3PGpioSimpleConfig_t cfg;
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cfg.outValue = CyFalse;
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cfg.driveLowEn = CyFalse;
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cfg.driveHighEn = CyFalse;
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cfg.inputEn = CyTrue;
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cfg.intrMode = CY_U3P_GPIO_NO_INTR;
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ZTEX_REC_RET( CyU3PGpioSetSimpleConfig( num, &cfg) );
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return 0;
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}
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void ztex_gpio_init() {
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CyU3PGpioClock_t cfg;
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cfg.fastClkDiv = 2;
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cfg.slowClkDiv = 0;
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cfg.simpleDiv = CY_U3P_GPIO_SIMPLE_DIV_BY_2;
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cfg.clkSrc = CY_U3P_SYS_CLK;
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cfg.halfDiv = 0;
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ZTEX_REC( CyU3PGpioInit (&cfg, GPIO_INT_HANDLER) );
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}
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#endif // _ZTEX_GPIO_C_
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