qemu：gpio使用

定义gpio_in

qdev_init_gpio_in_named
qdev_get_gpio_in_named

定义

/**
 * qdev_init_gpio_in_named() - create an array of input GPIO lines
 * @dev: device to add array to
 * @handler: a &typedef qemu_irq_handler function to call when GPIO is set
 * @name: Name of the GPIO input (must be unique for this device)
 * @n: Number of GPIO lines in this input set
 *
 * Like qdev_init_gpio_in_named_with_opaque(), but the opaque pointer
 * passed to the handler is @dev (which is the most commonly desired behaviour).
 */
static inline void qdev_init_gpio_in_named(DeviceState *dev,
                                           qemu_irq_handler handler,
                                           const char *name, int n)

使用

qdev_init_gpio_in_named(DEVICE(obj), FUNCTION_PROCESS_GPIO_PIN_IN(3,11