LPCOpen Platform for LPC18XX/43XX microcontrollers: C:/w/lpcopen_docs/software/lpc_core/lpc_chip/chip_18xx_43xx/gpio_18xx_43xx.c Source File

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gpio_18xx_43xx.c
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1 /*
2 * @brief LPC18xx/43xx GPIO driver
3 *
4 * @note
5 * Copyright(C) NXP Semiconductors, 2013
6 * All rights reserved.
7 *
8 * @par
9 * Software that is described herein is for illustrative purposes only
10 * which provides customers with programming information regarding the
11 * LPC products. This software is supplied "AS IS" without any warranties of
12 * any kind, and NXP Semiconductors and its licensor disclaim any and
13 * all warranties, express or implied, including all implied warranties of
14 * merchantability, fitness for a particular purpose and non-infringement of
15 * intellectual property rights. NXP Semiconductors assumes no responsibility
16 * or liability for the use of the software, conveys no license or rights under any
17 * patent, copyright, mask work right, or any other intellectual property rights in
18 * or to any products. NXP Semiconductors reserves the right to make changes
19 * in the software without notification. NXP Semiconductors also makes no
20 * representation or warranty that such application will be suitable for the
21 * specified use without further testing or modification.
22 *
23 * @par
24 * Permission to use, copy, modify, and distribute this software and its
25 * documentation is hereby granted, under NXP Semiconductors' and its
26 * licensor's relevant copyrights in the software, without fee, provided that it
27 * is used in conjunction with NXP Semiconductors microcontrollers. This
28 * copyright, permission, and disclaimer notice must appear in all copies of
29 * this code.
30 */
31
32 #include "chip.h"
33
34 /*****************************************************************************
35 * Private types/enumerations/variables
36 ****************************************************************************/
37
38 /*****************************************************************************
39 * Public types/enumerations/variables
40 ****************************************************************************/
41
42 /*****************************************************************************
43 * Private functions
44 ****************************************************************************/
45
46 /*****************************************************************************
47 * Public functions
48 ****************************************************************************/
49
50 /* Initialize GPIO block */
51 void Chip_GPIO_Init(LPC_GPIO_T *pGPIO)
52 {
53 }
54
55 /* De-Initialize GPIO block */
56 void Chip_GPIO_DeInit(LPC_GPIO_T *pGPIO)
57 {
58 }
59
60 /* Set a GPIO direction */
61 void Chip_GPIO_WriteDirBit(LPC_GPIO_T *pGPIO, uint32_t port, uint8_t bit, bool setting)
62 {
63 if (setting) {
64 pGPIO->DIR[port] |= 1UL << bit;
65 }
66 else {
67 pGPIO->DIR[port] &= ~(1UL << bit);
68 }
69 }
70
71 /* Set Direction for a GPIO port */
72 void Chip_GPIO_SetDir(LPC_GPIO_T *pGPIO, uint8_t portNum, uint32_t bitValue, uint8_t out)
73 {
74 if (out) {
75 pGPIO->DIR[portNum] |= bitValue;
76 }
77 else {
78 pGPIO->DIR[portNum] &= ~bitValue;
79 }
80 }
81
82 /* Set GPIO direction for a single GPIO pin */
83 void Chip_GPIO_SetPinDIR(LPC_GPIO_T *pGPIO, uint8_t port, uint8_t pin, bool output)
84 {
85 if (output) {
86 Chip_GPIO_SetPinDIROutput(pGPIO, port, pin);
87 }
88 else {
89 Chip_GPIO_SetPinDIRInput(pGPIO, port, pin);
90 }
91 }
92
93 /* Set GPIO direction for a all selected GPIO pins to an input or output */
94 void Chip_GPIO_SetPortDIR(LPC_GPIO_T *pGPIO, uint8_t port, uint8_t pinMask, bool outSet)
95 {
96 if (outSet) {
97 Chip_GPIO_SetPortDIROutput(pGPIO, port, pinMask);
98 }
99 else {
100 Chip_GPIO_SetPortDIRInput(pGPIO, port, pinMask);
101 }
102 }