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c116c1d7 | 1 | /* arch/arm/plat-samsung/include/plat/pm.h |
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2 | * |
3 | * Copyright (c) 2004 Simtec Electronics | |
6419711a | 4 | * http://armlinux.simtec.co.uk/ |
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5 | * Written by Ben Dooks, <ben@simtec.co.uk> |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
4e59c25d | 12 | /* s3c_pm_init |
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13 | * |
14 | * called from board at initialisation time to setup the power | |
15 | * management | |
16 | */ | |
17 | ||
72551f6c | 18 | #include <plat/pm-common.h> |
f5aeffb7 | 19 | |
4a858cfc | 20 | struct device; |
a09e2b21 | 21 | |
89693016 | 22 | #ifdef CONFIG_SAMSUNG_PM |
1da177e4 | 23 | |
4e59c25d | 24 | extern __init int s3c_pm_init(void); |
c656c306 | 25 | extern __init int s3c64xx_pm_init(void); |
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26 | |
27 | #else | |
28 | ||
4e59c25d | 29 | static inline int s3c_pm_init(void) |
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30 | { |
31 | return 0; | |
32 | } | |
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33 | |
34 | static inline int s3c64xx_pm_init(void) | |
35 | { | |
36 | return 0; | |
37 | } | |
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38 | #endif |
39 | ||
40 | /* configuration for the IRQ mask over sleep */ | |
41 | extern unsigned long s3c_irqwake_intmask; | |
42 | extern unsigned long s3c_irqwake_eintmask; | |
43 | ||
44 | /* IRQ masks for IRQs allowed to go to sleep (see irq.c) */ | |
45 | extern unsigned long s3c_irqwake_intallow; | |
4f506daf | 46 | #ifdef CONFIG_PM_SLEEP |
1da177e4 | 47 | extern unsigned long s3c_irqwake_eintallow; |
4f506daf AB |
48 | #else |
49 | #define s3c_irqwake_eintallow 0 | |
50 | #endif | |
1da177e4 | 51 | |
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52 | /* per-cpu sleep functions */ |
53 | ||
54 | extern void (*pm_cpu_prep)(void); | |
29cb3cd2 | 55 | extern int (*pm_cpu_sleep)(unsigned long); |
0033a2f0 | 56 | |
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57 | /* Flags for PM Control */ |
58 | ||
59 | extern unsigned long s3c_pm_flags; | |
60 | ||
61 | /* from sleep.S */ | |
62 | ||
29cb3cd2 | 63 | extern int s3c2410_cpu_suspend(unsigned long); |
1da177e4 | 64 | |
484c213b | 65 | #ifdef CONFIG_PM_SLEEP |
3445513c | 66 | extern int s3c_irq_wake(struct irq_data *data, unsigned int state); |
89693016 | 67 | extern void s3c_cpu_resume(void); |
1e582fc7 | 68 | #else |
3445513c | 69 | #define s3c_irq_wake NULL |
89693016 | 70 | #define s3c_cpu_resume NULL |
1e582fc7 | 71 | #endif |
6419711a | 72 | |
4f506daf AB |
73 | #ifdef CONFIG_SAMSUNG_PM |
74 | extern int s3c_irqext_wake(struct irq_data *data, unsigned int state); | |
75 | #else | |
76 | #define s3c_irqext_wake NULL | |
77 | #endif | |
78 | ||
bd117bd1 BD |
79 | #ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK |
80 | /** | |
81 | * s3c_pm_debug_smdkled() - Debug PM suspend/resume via SMDK Board LEDs | |
82 | * @set: set bits for the state of the LEDs | |
83 | * @clear: clear bits for the state of the LEDs. | |
84 | */ | |
85 | extern void s3c_pm_debug_smdkled(u32 set, u32 clear); | |
86 | ||
87 | #else | |
88 | static inline void s3c_pm_debug_smdkled(u32 set, u32 clear) { } | |
89 | #endif /* CONFIG_S3C_PM_DEBUG_LED_SMDK */ | |
90 | ||
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91 | /** |
92 | * s3c_pm_configure_extint() - ensure pins are correctly set for IRQ | |
93 | * | |
94 | * Setup all the necessary GPIO pins for waking the system on external | |
95 | * interrupt. | |
96 | */ | |
97 | extern void s3c_pm_configure_extint(void); | |
98 | ||
880cf071 | 99 | #ifdef CONFIG_GPIO_SAMSUNG |
2261e0e6 | 100 | /** |
782d8a3c | 101 | * samsung_pm_restore_gpios() - restore the state of the gpios after sleep. |
2261e0e6 BD |
102 | * |
103 | * Restore the state of the GPIO pins after sleep, which may involve ensuring | |
104 | * that we do not glitch the state of the pins from that the bootloader's | |
105 | * resume code has done. | |
106 | */ | |
782d8a3c | 107 | extern void samsung_pm_restore_gpios(void); |
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108 | |
109 | /** | |
782d8a3c | 110 | * samsung_pm_save_gpios() - save the state of the GPIOs for restoring after sleep. |
2261e0e6 | 111 | * |
782d8a3c | 112 | * Save the GPIO states for resotration on resume. See samsung_pm_restore_gpios(). |
2261e0e6 | 113 | */ |
782d8a3c | 114 | extern void samsung_pm_save_gpios(void); |
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115 | #else |
116 | static inline void samsung_pm_restore_gpios(void) {} | |
117 | static inline void samsung_pm_save_gpios(void) {} | |
118 | #endif | |
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119 | |
120 | extern void s3c_pm_save_core(void); | |
121 | extern void s3c_pm_restore_core(void); |