| 1 | /*
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| 2 | * Copyright (c) 2007 Michal Kebrt
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| 3 | * Copyright (c) 2009 Vineeth Pillai
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | /** @addtogroup arm32
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| 31 | * @{
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| 32 | */
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| 33 | /** @file
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| 34 | * @brief Declarations of machine specific functions.
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| 35 | *
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| 36 | * These functions enable to differentiate more kinds of ARM emulators
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| 37 | * or CPUs. It's the same concept as "arch" functions on the architecture
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| 38 | * level.
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| 39 | */
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| 40 |
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| 41 | #ifndef KERN_arm32_MACHINE_FUNC_H_
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| 42 | #define KERN_arm32_MACHINE_FUNC_H_
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| 43 |
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| 44 | #include <console/console.h>
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| 45 | #include <typedefs.h>
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| 46 | #include <arch/exception.h>
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| 47 |
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| 48 | struct arm_machine_ops {
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| 49 | void (*machine_init)(void);
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| 50 | void (*machine_timer_irq_start)(void);
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| 51 | void (*machine_cpu_halt)(void);
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| 52 | uintptr_t (*machine_get_memory_size)(void);
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| 53 | void (*machine_irq_exception)(unsigned int, istate_t*);
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| 54 | void (*machine_frame_init)(void);
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| 55 | void (*machine_output_init)(void);
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| 56 | void (*machine_input_init)(void);
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| 57 | };
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| 58 |
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| 59 | /** Pointer to arm_machine_ops structure being used. */
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| 60 | extern struct arm_machine_ops *machine_ops;
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| 61 |
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| 62 | /** Initialize machine_ops pointer. */
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| 63 | extern void machine_ops_init(void);
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| 64 |
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| 65 | /** Maps HW devices to the kernel address space using #hw_map. */
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| 66 | extern void machine_init(void);
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| 67 |
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| 68 |
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| 69 | /** Starts timer. */
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| 70 | extern void machine_timer_irq_start(void);
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| 71 |
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| 72 |
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| 73 | /** Halts CPU. */
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| 74 | extern void machine_cpu_halt(void);
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| 75 |
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| 76 |
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| 77 | /** Returns size of available memory.
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| 78 | *
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| 79 | * @return Size of available memory.
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| 80 | */
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| 81 | extern uintptr_t machine_get_memory_size(void);
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| 82 |
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| 83 |
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| 84 | /** Interrupt exception handler.
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| 85 | *
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| 86 | * @param exc_no Interrupt exception number.
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| 87 | * @param istate Saved processor state.
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| 88 | */
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| 89 | extern void machine_irq_exception(unsigned int exc_no, istate_t *istate);
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| 90 |
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| 91 |
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| 92 | /*
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| 93 | * Machine specific frame initialization
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| 94 | */
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| 95 | extern void machine_frame_init(void);
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| 96 |
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| 97 | /*
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| 98 | * configure the serial line output device.
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| 99 | */
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| 100 | extern void machine_output_init(void);
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| 101 |
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| 102 | /*
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| 103 | * configure the serial line input device.
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| 104 | */
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| 105 | extern void machine_input_init(void);
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| 106 |
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| 107 | #endif
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| 108 |
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| 109 | /** @}
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| 110 | */
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