Archipelago » qemu

/*

 * QEMU ETRAX System Emulator

 *

 * Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

#include <time.h>

#include <sys/time.h>

#include "vl.h"

extern FILE *logfile;

static void main_cpu_reset(void *opaque)

{

    CPUState *env = opaque;

    cpu_reset(env);

}

static uint32_t fs_mmio_readb (void *opaque, target_phys_addr_t addr)

{

        CPUState *env = opaque;

        uint32_t r = 0;

        printf ("%s %x pc=%x\n", __func__, addr, env->pc);

        return r;

}

static uint32_t fs_mmio_readw (void *opaque, target_phys_addr_t addr)

{

        CPUState *env = opaque;

        uint32_t r = 0;

        printf ("%s %x pc=%x\n", __func__, addr, env->pc);

        return r;

}

static uint32_t fs_mmio_readl (void *opaque, target_phys_addr_t addr)

{

        CPUState *env = opaque;

        uint32_t r = 0;

        printf ("%s %x p=%x\n", __func__, addr, env->pc);

        return r;

}

static void

fs_mmio_writeb (void *opaque, target_phys_addr_t addr, uint32_t value)

{

        CPUState *env = opaque;

        printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);

}

static void

fs_mmio_writew (void *opaque, target_phys_addr_t addr, uint32_t value)

{

        CPUState *env = opaque;

        printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);

}

static void

fs_mmio_writel (void *opaque, target_phys_addr_t addr, uint32_t value)

{

        CPUState *env = opaque;

        printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);

}

static CPUReadMemoryFunc *fs_mmio_read[] = {

    &fs_mmio_readb,

    &fs_mmio_readw,

    &fs_mmio_readl,

};

static CPUWriteMemoryFunc *fs_mmio_write[] = {

    &fs_mmio_writeb,

    &fs_mmio_writew,

    &fs_mmio_writel,

};

/* Init functions for different blocks.  */

extern void etraxfs_timer_init(CPUState *env, qemu_irq *irqs);

extern void etraxfs_ser_init(CPUState *env, qemu_irq *irqs);

void etrax_ack_irq(CPUState *env, uint32_t mask)

{

        env->pending_interrupts &= ~mask;

}

static void dummy_cpu_set_irq(void *opaque, int irq, int level)

{

        CPUState *env = opaque;

        /* Hmm, should this really be done here?  */

        env->pending_interrupts |= 1 << irq;

        cpu_interrupt(env, CPU_INTERRUPT_HARD);

}

static

void bareetraxfs_init (int ram_size, int vga_ram_size, int boot_device,

                       DisplayState *ds, const char **fd_filename, int snapshot,

                       const char *kernel_filename, const char *kernel_cmdline,

                       const char *initrd_filename, const char *cpu_model)

{

    CPUState *env;

    qemu_irq *irqs;

    int kernel_size;

    int internal_regs;

    /* init CPUs */

    if (cpu_model == NULL) {

        cpu_model = "crisv32";

    }

    env = cpu_init();

/*    register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); */

    qemu_register_reset(main_cpu_reset, env);

    irqs = qemu_allocate_irqs(dummy_cpu_set_irq, env, 32);

    internal_regs = cpu_register_io_memory(0,

                                           fs_mmio_read, fs_mmio_write, env);

    /* 0xb0050000 is the last reg.  */

    cpu_register_physical_memory (0xac000000, 0x4010000, internal_regs);

    /* allocate RAM */

    cpu_register_physical_memory(0x40000000, ram_size, IO_MEM_RAM);

    etraxfs_timer_init(env, irqs);

    etraxfs_ser_init(env, irqs);

    kernel_size = load_image(kernel_filename, phys_ram_base + 0x4000);

    /* magic for boot.  */

    env->regs[8] = 0x56902387;

    env->regs[9] = 0x40004000 + kernel_size;

    env->pc = 0x40004000;

    {

       unsigned char *ptr = phys_ram_base + 0x4000;

       int i;

       for (i = 0; i < 8; i++)

       {

                printf ("%2.2x ", ptr[i]);

       }

        printf("\n");

    }

    printf ("pc =%x\n", env->pc);

    printf ("ram size =%d\n", ram_size);

    printf ("kernel name =%s\n", kernel_filename);

    printf ("kernel size =%d\n", kernel_size);

    printf ("cpu haltd =%d\n", env->halted);

}

void DMA_run(void)

{

}

void pic_info()

{

}

void irq_info()

{

}

QEMUMachine bareetraxfs_machine = {

    "bareetraxfs",

    "Bare ETRAX FS board",

    bareetraxfs_init,

};