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gpio_003.c
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1 /*
2 * @brief GPIO Registers and Functions
3 *
4 * @note
5 * Copyright(C) NXP Semiconductors, 2012
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 "gpio_003.h"
33
34 #if (defined(CHIP_LPC110X) || defined(CHIP_LPC11XXLV) || defined(CHIP_LPC11CXX) || defined(CHIP_LPC1343))
35
36 /*****************************************************************************
37 * Private types/enumerations/variables
38 ****************************************************************************/
39
40 /*****************************************************************************
41 * Public types/enumerations/variables
42 ****************************************************************************/
43
44 /*****************************************************************************
45 * Private functions
46 ****************************************************************************/
47
48 STATIC INLINE void configGpioInt(IP_GPIO_003_T *pGPIO, uint8_t pin, bool ibe, bool isense, bool iev)
49 {
50 uint32_t temp;
51
52 temp = pGPIO->IBE & ~(1 << pin);
53 pGPIO->IBE = temp | (ibe << pin);
54 temp = pGPIO->IS & ~(1 << pin);
55 pGPIO->IS = temp | (isense << pin);
56 temp = pGPIO->IEV & ~(1 << pin);
57 pGPIO->IEV = temp | (iev << pin);
58 }
59
60 /*****************************************************************************
61 * Public functions
62 ****************************************************************************/
63
64 /* Enable GPIO Interrupt */
65 void IP_GPIO_IntCmd(IP_GPIO_003_T *pGPIO, uint8_t pin, IP_GPIOPININT_MODE_T mode)
66 {
67 configGpioInt(pGPIO, pin, (bool) ((mode >> 31) & 1), (bool) (mode & 1), (bool) ((mode >> 16) & 1));
68 pGPIO->IE |= 1 << pin;
69 }
70
71 #endif