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1 | /* |
1 | /* |
2 | * Copyright (c) 2003-2004 Jakub Jermar |
2 | * Copyright (c) 2007 Michal Kebrt |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
Line 27... | Line 27... | ||
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup arm32 |
29 | /** @addtogroup arm32 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
- | 33 | * @brief Declarations of functions implemented in assembly. |
|
33 | */ |
34 | */ |
34 | 35 | ||
35 | #ifndef KERN_arm32_ASM_H_ |
36 | #ifndef KERN_arm32_ASM_H_ |
36 | #define KERN_arm32_ASM_H_ |
37 | #define KERN_arm32_ASM_H_ |
37 | 38 | ||
38 | #include <arch/types.h> |
39 | #include <arch/types.h> |
- | 40 | #include <arch/stack.h> |
|
- | 41 | #include <config.h> |
|
- | 42 | #include <arch/interrupt.h> |
|
39 | 43 | ||
- | 44 | /** No such instruction on ARM to sleep CPU. */ |
|
40 | static inline void cpu_sleep(void) |
45 | static inline void cpu_sleep(void) |
41 | { |
46 | { |
42 | /* TODO */ |
- | |
43 | } |
47 | } |
44 | 48 | ||
45 | /** Return base address of current stack |
49 | /** Return base address of current stack. |
46 | * |
50 | * |
47 | * Return the base address of the current stack. |
51 | * Return the base address of the current stack. |
48 | * The stack is assumed to be STACK_SIZE bytes long. |
52 | * The stack is assumed to be STACK_SIZE bytes long. |
49 | * The stack must start on page boundary. |
53 | * The stack must start on page boundary. |
50 | */ |
54 | */ |
51 | static inline uintptr_t get_stack_base(void) |
55 | static inline uintptr_t get_stack_base(void) |
52 | { |
56 | { |
- | 57 | uintptr_t v; |
|
- | 58 | asm volatile ( |
|
- | 59 | "and %0, sp, %1\n" |
|
53 | /* TODO */ |
60 | : "=r" (v) |
- | 61 | : "r" (~(STACK_SIZE - 1)) |
|
- | 62 | ); |
|
54 | return NULL; |
63 | return v; |
55 | } |
64 | } |
56 | 65 | ||
57 | extern void cpu_halt(void); |
66 | extern void cpu_halt(void); |
58 | extern void asm_delay_loop(uint32_t t); |
67 | extern void asm_delay_loop(uint32_t t); |
59 | extern void userspace_asm(uintptr_t ustack, uintptr_t uspace_uarg, |
68 | extern void userspace_asm(uintptr_t ustack, uintptr_t uspace_uarg, |
60 | uintptr_t entry); |
69 | uintptr_t entry); |
61 | 70 | ||
62 | extern ipl_t interrupts_disable(void); |
- | |
63 | extern ipl_t interrupts_enable(void); |
- | |
64 | extern void interrupts_restore(ipl_t ipl); |
- | |
65 | extern ipl_t interrupts_read(void); |
- | |
66 | - | ||
67 | #endif |
71 | #endif |
68 | 72 | ||
69 | /** @} |
73 | /** @} |
70 | */ |
74 | */ |