1 /**
2 * @file xmc_gpio.c
3 * @date 2015-06-20
4 *
5 * @cond
6 *********************************************************************************************************************
7 * XMClib v2.1.24 - XMC Peripheral Driver Library
8 *
9 * Copyright (c) 2015-2019, Infineon Technologies AG
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without modification,are permitted provided that the
13 * following conditions are met:
14 *
15 * Redistributions of source code must retain the above copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
19 * disclaimer in the documentation and/or other materials provided with the distribution.
20 *
21 * Neither the name of the copyright holders nor the names of its contributors may be used to endorse or promote
22 * products derived from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
25 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY,OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 * To improve the quality of the software, users are encouraged to share modifications, enhancements or bug fixes with
33 * Infineon Technologies AG dave@infineon.com).
34 *********************************************************************************************************************
35 *
36 * Change History
37 * --------------
38 *
39 * 2015-02-20:
40 * - Initial draft <br>
41 *
42 * 2015-06-20:
43 * - Removed version macros and declaration of GetDriverVersion API
44 *
45 * @endcond
46 *
47 */
48
49 /*******************************************************************************
50 * HEADER FILES
51 *******************************************************************************/
52
53 #include <xmc_gpio.h>
54
55 /*******************************************************************************
56 * MACROS
57 *******************************************************************************/
58
59 #define PORT_HWSEL_Msk PORT0_HWSEL_HW0_Msk
60
61 /*******************************************************************************
62 * API IMPLEMENTATION
63 *******************************************************************************/
64
XMC_GPIO_SetMode(XMC_GPIO_PORT_t * const port,const uint8_t pin,const XMC_GPIO_MODE_t mode)65 void XMC_GPIO_SetMode(XMC_GPIO_PORT_t *const port, const uint8_t pin, const XMC_GPIO_MODE_t mode)
66 {
67 XMC_ASSERT("XMC_GPIO_SetMode: Invalid port", XMC_GPIO_CHECK_PORT(port));
68 XMC_ASSERT("XMC_GPIO_SetMode: Invalid mode", XMC_GPIO_IsModeValid(mode));
69
70 port->IOCR[(uint32_t)pin >> 2U] &= ~(uint32_t)((uint32_t)PORT_IOCR_PC_Msk << ((uint32_t)PORT_IOCR_PC_Size * ((uint32_t)pin & 0x3U)));
71 port->IOCR[(uint32_t)pin >> 2U] |= (uint32_t)mode << ((uint32_t)PORT_IOCR_PC_Size * ((uint32_t)pin & 0x3U));
72 }
73
XMC_GPIO_SetHardwareControl(XMC_GPIO_PORT_t * const port,const uint8_t pin,const XMC_GPIO_HWCTRL_t hwctrl)74 void XMC_GPIO_SetHardwareControl(XMC_GPIO_PORT_t *const port, const uint8_t pin, const XMC_GPIO_HWCTRL_t hwctrl)
75 {
76 XMC_ASSERT("XMC_GPIO_SetHardwareControl: Invalid port", XMC_GPIO_CHECK_PORT(port));
77 XMC_ASSERT("XMC_GPIO_SetHardwareControl: Invalid hwctrl", XMC_GPIO_CHECK_HWCTRL(hwctrl));
78
79 port->HWSEL &= ~(uint32_t)((uint32_t)PORT_HWSEL_Msk << ((uint32_t)pin << 1U));
80 port->HWSEL |= (uint32_t)hwctrl << ((uint32_t)pin << 1U);
81 }
82
