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sysctl_13xx.c
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1 /*
2 * @brief LPC13XX System Control functions
3 *
4 * Copyright(C) NXP Semiconductors, 2012
5 * All rights reserved.
6 *
7 * Software that is described herein is for illustrative purposes only
8 * which provides customers with programming information regarding the
9 * LPC products. This software is supplied "AS IS" without any warranties of
10 * any kind, and NXP Semiconductors and its licensor disclaim any and
11 * all warranties, express or implied, including all implied warranties of
12 * merchantability, fitness for a particular purpose and non-infringement of
13 * intellectual property rights. NXP Semiconductors assumes no responsibility
14 * or liability for the use of the software, conveys no license or rights under any
15 * patent, copyright, mask work right, or any other intellectual property rights in
16 * or to any products. NXP Semiconductors reserves the right to make changes
17 * in the software without notification. NXP Semiconductors also makes no
18 * representation or warranty that such application will be suitable for the
19 * specified use without further testing or modification.
20 *
21 * Permission to use, copy, modify, and distribute this software and its
22 * documentation is hereby granted, under NXP Semiconductors' and its
23 * licensor's relevant copyrights in the software, without fee, provided that it
24 * is used in conjunction with NXP Semiconductors microcontrollers. This
25 * copyright, permission, and disclaimer notice must appear in all copies of
26 * this code.
27 */
28
29 #include "chip.h"
30
31 /*****************************************************************************
32 * Private types/enumerations/variables
33 ****************************************************************************/
34
35 /* PDSLEEPCFG register mask */
36 #if defined(CHIP_LPC1343)
37 #if defined(CHIP_LPC1300L)
38 #define PDSLEEPUSEMASK 0x000018B7 /* For CHIP_LPC1300L only */
39 #else
40 #define PDSLEEPUSEMASK 0x00000FB7
41 #endif /* defined (CHIP_LPC1300L) */
42 #else
43 #define PDSLEEPUSEMASK 0x00000007
44 #endif /* defined(CHIP_LPC1343) */
45 #define PDSLEEPMASKTMP (SYSCTL_DEEPSLP_BOD_PD | SYSCTL_DEEPSLP_WDTOSC_PD)
46 #define PDSLEEPMASK ((PDSLEEPUSEMASK) &~(PDSLEEPMASKTMP))
47
48 /* PDWAKECFG register mask */
49 #if defined(CHIP_LPC1347)
50 #define PDWAKEUPUSEMASK 0x00000800
51 #else
52 #define PDWAKEUPUSEMASK 0x0000F800
53 #endif
54 #define PDWAKEUPMASKTMP 0x000005FF
55
56 /* PDRUNCFG register mask */
57 #if defined(CHIP_LPC1347)
58 #define PDRUNCFGUSEMASK 0x0000E800
59 #else
60 #define PDRUNCFGUSEMASK 0x0000F800
61 #endif
62 #define PDRUNCFGMASKTMP 0x000005FF
63
64 /*****************************************************************************
65 * Public types/enumerations/variables
66 ****************************************************************************/
67
68 /*****************************************************************************
69 * Private functions
70 ****************************************************************************/
71
72 /*****************************************************************************
73 * Public functions
74 ****************************************************************************/
75
76 /* Setup deep sleep behaviour for power down */
77 void Chip_SYSCTL_SetDeepSleepPD(uint32_t sleepmask)
78 {
79 /* Update new value */
80 LPC_SYSCTL->PDSLEEPCFG = PDSLEEPMASK | (sleepmask & PDSLEEPMASKTMP);
81 }
82
83 /* Setup wakeup behaviour from deep sleep */
84 void Chip_SYSCTL_SetWakeup(uint32_t wakeupmask)
85 {
86 /* Update new value */
87 LPC_SYSCTL->PDWAKECFG = PDWAKEUPUSEMASK | (wakeupmask & PDWAKEUPMASKTMP);
88 }
89
90 /* Power down one or more blocks or peripherals */
91 void Chip_SYSCTL_PowerDown(uint32_t powerdownmask)
92 {
93 uint32_t pdrun;
94
95 pdrun = LPC_SYSCTL->PDRUNCFG & PDRUNCFGMASKTMP;
96 pdrun |= (powerdownmask & PDRUNCFGMASKTMP);
97
98 LPC_SYSCTL->PDRUNCFG = (pdrun | PDRUNCFGUSEMASK);
99 }
100
101 /* Power up one or more blocks or peripherals */
102 void Chip_SYSCTL_PowerUp(uint32_t powerupmask)
103 {
104 uint32_t pdrun;
105
106 pdrun = LPC_SYSCTL->PDRUNCFG & PDRUNCFGMASKTMP;
107 pdrun &= ~(powerupmask & PDRUNCFGMASKTMP);
108
109 LPC_SYSCTL->PDRUNCFG = (pdrun | PDRUNCFGUSEMASK);
110 }