Rev 3386 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2128 | jermar | 1 | /* |
| 2465 | jermar | 2 | * Copyright (c) 2007 Michal Kebrt |
| 2128 | jermar | 3 | * All rights reserved. |
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 13 | * documentation and/or other materials provided with the distribution. |
||
| 14 | * - The name of the author may not be used to endorse or promote products |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 4153 | mejdrech | 29 | /** @addtogroup arm32 |
| 2128 | jermar | 30 | * @{ |
| 31 | */ |
||
| 4153 | mejdrech | 32 | /** @file |
| 2465 | jermar | 33 | * @brief Declarations of functions implemented in assembly. |
| 2128 | jermar | 34 | */ |
| 35 | |||
| 36 | #ifndef KERN_arm32_ASM_H_ |
||
| 37 | #define KERN_arm32_ASM_H_ |
||
| 38 | |||
| 4153 | mejdrech | 39 | #include <typedefs.h> |
| 2128 | jermar | 40 | #include <arch/types.h> |
| 2465 | jermar | 41 | #include <arch/stack.h> |
| 42 | #include <config.h> |
||
| 43 | #include <arch/interrupt.h> |
||
| 2128 | jermar | 44 | |
| 2465 | jermar | 45 | /** No such instruction on ARM to sleep CPU. */ |
| 2128 | jermar | 46 | static inline void cpu_sleep(void) |
| 47 | { |
||
| 48 | } |
||
| 49 | |||
| 4153 | mejdrech | 50 | static inline void pio_write_8(ioport8_t *port, uint8_t v) |
| 51 | { |
||
| 52 | *port = v; |
||
| 53 | } |
||
| 54 | |||
| 55 | static inline void pio_write_16(ioport16_t *port, uint16_t v) |
||
| 56 | { |
||
| 57 | *port = v; |
||
| 58 | } |
||
| 59 | |||
| 60 | static inline void pio_write_32(ioport32_t *port, uint32_t v) |
||
| 61 | { |
||
| 62 | *port = v; |
||
| 63 | } |
||
| 64 | |||
| 65 | static inline uint8_t pio_read_8(ioport8_t *port) |
||
| 66 | { |
||
| 67 | return *port; |
||
| 68 | } |
||
| 69 | |||
| 70 | static inline uint16_t pio_read_16(ioport16_t *port) |
||
| 71 | { |
||
| 72 | return *port; |
||
| 73 | } |
||
| 74 | |||
| 75 | static inline uint32_t pio_read_32(ioport32_t *port) |
||
| 76 | { |
||
| 77 | return *port; |
||
| 78 | } |
||
| 79 | |||
| 2465 | jermar | 80 | /** Return base address of current stack. |
| 4153 | mejdrech | 81 | * |
| 2128 | jermar | 82 | * Return the base address of the current stack. |
| 83 | * The stack is assumed to be STACK_SIZE bytes long. |
||
| 84 | * The stack must start on page boundary. |
||
| 4153 | mejdrech | 85 | * |
| 2128 | jermar | 86 | */ |
| 87 | static inline uintptr_t get_stack_base(void) |
||
| 88 | { |
||
| 2465 | jermar | 89 | uintptr_t v; |
| 90 | asm volatile ( |
||
| 4153 | mejdrech | 91 | "and %[v], sp, %[size]\n" |
| 92 | : [v] "=r" (v) |
||
| 93 | : [size] "r" (~(STACK_SIZE - 1)) |
||
| 2465 | jermar | 94 | ); |
| 95 | return v; |
||
| 2128 | jermar | 96 | } |
| 97 | |||
| 98 | extern void cpu_halt(void); |
||
| 99 | extern void asm_delay_loop(uint32_t t); |
||
| 100 | extern void userspace_asm(uintptr_t ustack, uintptr_t uspace_uarg, |
||
| 101 | uintptr_t entry); |
||
| 102 | |||
| 103 | #endif |
||
| 104 | |||
| 105 | /** @} |
||
| 106 | */ |