include/hw/qdev-core.h

593  * typedef GpioPolarity - Polarity of a GPIO line
595  * GPIO lines use either positive (active-high) logic,
609  * qdev_get_gpio_in: Get one of a device's anonymous input GPIO lines
610  * @dev: Device whose GPIO we want
611  * @n: Number of the anonymous GPIO line (which must be in range)
613  * Returns the qemu_irq corresponding to an anonymous input GPIO line
615  * @n of the GPIO line must be valid (i.e. be at least 0 and less than
620  * device models to wire up the GPIO lines; usually the return value
622  * connect another device's output GPIO line to this input.
624  * For named input GPIO lines, use qdev_get_gpio_in_named().
626  * Return: qemu_irq corresponding to anonymous input GPIO line
631  * qdev_get_gpio_in_named: Get one of a device's named input GPIO lines
632  * @dev: Device whose GPIO we want
633  * @name: Name of the input GPIO array
634  * @n: Number of the GPIO line in that array (which must be in range)
636  * Returns the qemu_irq corresponding to a single input GPIO line
637  * in a named array of input GPIO lines on a device (which the device
639  * The @name string must correspond to an input GPIO array which exists on
640  * the device, and the index @n of the GPIO line must be valid (i.e.
644  * For anonymous input GPIO lines, use qdev_get_gpio_in().
646  * Return: qemu_irq corresponding to named input GPIO line
651  * qdev_connect_gpio_out: Connect one of a device's anonymous output GPIO lines
652  * @dev: Device whose GPIO to connect
653  * @n: Number of the anonymous output GPIO line (which must be in range)
656  * This function connects an anonymous output GPIO line on a device
658  * output GPIO line, the qemu_irq's callback is invoked.
659  * The index @n of the GPIO line must be valid (i.e. be at least 0 and
663  * Outbound GPIO lines can be connected to any qemu_irq, but the common
664  * case is connecting them to another device's inbound GPIO line, using
667  * It is not valid to try to connect one outbound GPIO to multiple
672  * a device's outbound GPIO to the splitter's input, and connect each
677  * For named output GPIO lines, use qdev_connect_gpio_out_named().
683  *                              GPIO lines
684  * @dev: Device whose GPIO to connect
685  * @name: Name of the output GPIO array
686  * @n: Number of the output GPIO line within that array (which must be in range)
689  * This function connects a single GPIO output in a named array of output
690  * GPIO lines on a device up to an arbitrary qemu_irq, so that when the
691  * device asserts that output GPIO line, the qemu_irq's callback is invoked.
692  * The @name string must correspond to an output GPIO array which exists on
693  * the device, and the index @n of the GPIO line must be valid (i.e.
697  * Outbound GPIO lines can be connected to any qemu_irq, but the common
698  * case is connecting them to another device's inbound GPIO line, using
701  * It is not valid to try to connect one outbound GPIO to multiple
705  * For anonymous output GPIO lines, use qdev_connect_gpio_out().
711  * qdev_get_gpio_out_connector: Get the qemu_irq connected to an output GPIO
712  * @dev: Device whose output GPIO we are interested in
713  * @name: Name of the output GPIO array
714  * @n: Number of the output GPIO line within that array
717  * output GPIO line of @dev. This will be NULL if the output GPIO line
719  * returned does not belong to @dev -- it will be the input GPIO or
721  * output GPIO.
726  * Return: qemu_irq associated with GPIO or NULL if un-wired.
731  * qdev_intercept_gpio_out: Intercept an existing GPIO connection
732  * @dev: Device to intercept the outbound GPIO line from
734  * @name: Name of the output GPIO array
735  * @n: Number of the GPIO line in the array
741  * This function breaks an existing connection of an outbound GPIO
757  * qdev_init_gpio_in: create an array of anonymous input GPIO lines
759  * @handler: Function to call when GPIO line value is set
760  * @n: Number of GPIO lines to create
763  * their instance_init or realize methods to create any input GPIO
765  * anonymous and named GPIO lines. Stylistically, named GPIOs are
767  * has exactly one uniform kind of GPIO input whose purpose is obvious.
768  * Note that input GPIO lines can serve as 'sinks' for IRQ lines.
771  * hold of an input GPIO line to manipulate it.
776  * qdev_init_gpio_out: create an array of anonymous output GPIO lines
778  * @pins: Pointer to qemu_irq or qemu_irq array for the GPIO lines
779  * @n: Number of GPIO lines to create
783  * GPIO lines they need. There is no functional difference between
784  * anonymous and named GPIO lines. Stylistically, named GPIOs are
786  * has exactly one uniform kind of GPIO output whose purpose is obvious.
791  * lower the GPIO line by calling qemu_set_irq(). (If anything is
792  * connected to the other end of the GPIO this will cause the handler
793  * function for that input GPIO to be called.)
796  * can connect to one of its output GPIO lines.
805  * qdev_init_gpio_out_named: create an array of named output GPIO lines
807  * @pins: Pointer to qemu_irq or qemu_irq array for the GPIO lines
808  * @name: Name to give this array of GPIO lines
809  * @n: Number of GPIO lines to create in this array
811  * Like qdev_init_gpio_out(), but creates an array of GPIO output lines
812  * with a name. Code using the device can then connect these GPIO lines
819  * qdev_init_gpio_in_named_with_opaque() - create an array of input GPIO lines
821  * @handler: Function to call when GPIO line value is set
823  * @name: Name of the GPIO input (must be unique for this device)
824  * @n: Number of GPIO lines in this input set
832  * qdev_init_gpio_in_named() - create an array of input GPIO lines
834  * @handler: a &typedef qemu_irq_handler function to call when GPIO is set
835  * @name: Name of the GPIO input (must be unique for this device)
836  * @n: Number of GPIO lines in this input set
849  * qdev_pass_gpios: create GPIO lines on container which pass through to device
850  * @dev: Device which has GPIO lines
852  * @name: Name of GPIO array to pass through (NULL for the anonymous GPIO array)
857  * to create GPIO arrays on itself which simply pass through to a GPIO
864  * To users of the container device, the GPIO array created on @container