qemu/hw/stm32.c

gistfile1.c

static void stm32l152rbt6_init(ram_addr_t ram_size, const char *boot_device, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model) {
    //Préparation de la mémoire
    MemoryRegion *address_space_mem = get_system_memory();
    uint16_t flash_size = stm32_board.f_size; //128KBits
    uint16_t sram_size = 0x0010; //16 KBits
    
    
    //Initialisation du processeur (+ mémoire)
    qemu_irq* pic = armv7m_init(address_space_mem, flash_size, sram_size, kernel_filename, cpu_model);
    stm32l_sys_init(0x1FF00000, pic[28], &stm32_board); //FIXME: Vérifier l'implémentation de la sys memory
    
    
    //Structures GPIO
    static const uint32_t gpio_addr[NB_GPIO] = {
        0x40020000, //GPIO_A
        0x40020400, //GPIO_B
        0x40020800, //GPIO_C
        0x40020C00, //GPIO_D
        0x40021000, //GPIO_E
        0x40021400  //GPIO_H
    };
//    static const int gpio_idIrqNVIC[NB_NVIC_IRQ] = {6,7,8,9,10};
    DeviceState* gpio_dev[NB_GPIO];    
    
    //Création du bouton
    DeviceState* button = sysbus_create_simple("stm32_button", -1, NULL);
    
    //Création des leds
    DeviceState* led_dev6 = sysbus_create_simple("stm32_led_blue", -1, NULL);
    DeviceState* led_dev7 = sysbus_create_simple("stm32_led_green", -1, NULL);
    
    
    //Initialisation du GPIO_A
    gpio_dev[GPIO_A] = sysbus_create_varargs("stm32_gpio_A", gpio_addr[GPIO_A], NULL); //, pic[gpio_idIrqNVIC[0]], pic[gpio_idIrqNVIC[1]], pic[gpio_idIrqNVIC[2]], pic[gpio_idIrqNVIC[3]], pic[gpio_idIrqNVIC[4]], NULL);
    qemu_irq entreeBouton = qdev_get_gpio_in(gpio_dev[GPIO_A], 0);
    qdev_connect_gpio_out(button, 0, entreeBouton);
    
    //Initialisation du GPIO_B
    gpio_dev[GPIO_B] = sysbus_create_varargs("stm32_gpio_B", gpio_addr[GPIO_B], NULL); //, pic[gpio_idIrqNVIC[0]], pic[gpio_idIrqNVIC[1]], pic[gpio_idIrqNVIC[2]], pic[gpio_idIrqNVIC[3]], pic[gpio_idIrqNVIC[4]], NULL);
    qemu_irq entreeLED6 = qdev_get_gpio_in(led_dev6, 0);
    qdev_connect_gpio_out(gpio_dev[GPIO_B], 6, entreeLED6);
    qemu_irq entreeLED7 = qdev_get_gpio_in(led_dev7, 0);
    qdev_connect_gpio_out(gpio_dev[GPIO_B], 7, entreeLED7);
    
}