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4651 pillai 1
/*
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 * Copyright (c) 2007 Michal Kebrt
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 * Copyright (c) 2009 Vineeth Pillai
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup arm32
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 * @{
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 */
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/** @file
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 *  @brief Declarations of machine specific functions.
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 *
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 *  These functions enable to differentiate more kinds of ARM emulators
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 *  or CPUs. It's the same concept as "arch" functions on the architecture
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 *  level.
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 */
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#ifndef KERN_arm32_MACHINE_FUNC_H_
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#define KERN_arm32_MACHINE_FUNC_H_
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#include <console/console.h>
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#include <arch/types.h>
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#include <arch/exception.h>
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#define MACHINE_GENFUNC machine_genfunc
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struct arm_machine_ops {
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    void        (*machine_grab_console)(void);
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    void        (*machine_release_console)(void);
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    void        (*machine_init)(void);
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    void        (*machine_timer_irq_start)(void);
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    void        (*machine_cpu_halt)(void);
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    uintptr_t   (*machine_get_memory_size)(void);
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    void        (*machine_fb_init)(void);
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    void        (*machine_irq_exception)(int, istate_t*);
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    uintptr_t   (*machine_get_fb_address)(void);
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    void        (*machine_frame_init)(void);
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    void        (*machine_output_init)(void);
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    void        (*machine_input_init)(void);
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};
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extern struct arm_machine_ops machine_ops;
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/** Acquire console back for kernel. */
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extern void machine_grab_console(void);
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/** Return console to userspace. */
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extern void machine_release_console(void);
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/** Maps HW devices to the kernel address space using #hw_map. */
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extern void machine_init(void);
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/** Starts timer. */
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extern void machine_timer_irq_start(void);
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/** Halts CPU. */
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extern void machine_cpu_halt(void);
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/** Returns size of available memory.
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 *
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 *  @return Size of available memory.
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 */
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extern uintptr_t machine_get_memory_size(void);
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/** Initializes the Frame Buffer
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 *
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 */
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extern void machine_fb_init(void);
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/** Interrupt exception handler.
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 *
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 * @param exc_no Interrupt exception number.
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 * @param istate Saved processor state.
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 */
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extern void machine_irq_exception(int exc_no, istate_t *istate);
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/** Returns address of framebuffer device.
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 *
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 *  @return Address of framebuffer device.
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 */
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extern uintptr_t machine_get_fb_address(void);
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/*
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 * Machine specific frame initialization
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 */
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extern void machine_frame_init(void);
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/*
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 * configure the serial line output device.
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 */
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extern void machine_output_init(void);
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/*
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 * configure the serial line input device.
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 */
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extern void machine_input_init(void);
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extern void machine_genfunc(void);
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#endif
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/** @}
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 */