source: mainline/kernel/arch/sparc32/src/machine_func.c@ df7f5cea

/*
 * Copyright (c) 2009 Vineeth Pillai
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup sparc32
 * @{
 */
/** @file
 * @brief Definitions of machine specific functions.
 *
 * These functions enable to differentiate more kinds of SPARC emulators
 * or CPUs. It's the same concept as "arch" functions on the architecture
 * level.
 */

#include <arch/machine_func.h>
#include <arch/machine/leon3/leon3.h>

/** Pointer to machine_ops structure being used. */
struct sparc_machine_ops *machine_ops;

/** Initialize machine_ops pointer. */
void machine_ops_init(void)
{
#if defined(MACHINE_leon3)
        machine_ops = &leon3_machine_ops;
#else
#error Machine type not defined.
#endif
}

/** Map HW devices to the kernel address space using #hw_map. */
void machine_init(bootinfo_t *bootinfo)
{
        machine_ops->machine_init(bootinfo);
}

/** Start timer. */
void machine_timer_irq_start(void)
{
        machine_ops->machine_timer_irq_start();
}

/** Halt CPU. */
void machine_cpu_halt(void)
{
        machine_ops->machine_cpu_halt();
}

/** Get extents of available memory.
 *
 * @param start Place to store memory start address.
 * @param size  Place to store memory size.
 *
 */
void machine_get_memory_extents(uintptr_t *start, size_t *size)
{
        machine_ops->machine_get_memory_extents(start, size);
}

/** Interrupt exception handler.
 *
 * @param exc    Interrupt exception number.
 * @param istate Saved processor state.
 *
 */
void machine_irq_exception(unsigned int exc, istate_t *istate)
{
        machine_ops->machine_irq_exception(exc, istate);
}

/** Configure the output device. */
void machine_output_init(void)
{
        machine_ops->machine_output_init();
}

/** Configure the input device. */
void machine_input_init(void)
{
        machine_ops->machine_input_init();
}

/** Get IRQ number range used by machine. */
size_t machine_get_irq_count(void)
{
        return machine_ops->machine_get_irq_count();
}

const char *machine_get_platform_name(void)
{
        if (machine_ops->machine_get_platform_name)
                return machine_ops->machine_get_platform_name();
        
        return NULL;
}

/** @}
 */