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authorPeter Maydell <peter.maydell@linaro.org>2020-08-03 17:55:03 +0100
committerPeter Maydell <peter.maydell@linaro.org>2020-08-03 17:55:03 +0100
commitfaf7c6de34fb8eaa566726cc658ba5ad81fb32af (patch)
tree345e882da13bdc0bfb228a045560777625c666df /target/lm32
parente7e5a9595ab1136845c444141830fca0d2746a73 (diff)
downloadqemu-faf7c6de34fb8eaa566726cc658ba5ad81fb32af.zip
include/hw/irq.h: New function qemu_irq_is_connected()
Mostly devices don't need to care whether one of their output qemu_irq lines is connected, because functions like qemu_set_irq() silently do nothing if there is nothing on the other end. However sometimes a device might want to implement default behaviour for the case where the machine hasn't wired the line up to anywhere. Provide a function qemu_irq_is_connected() that devices can use for this purpose. (The test is trivial but encapsulating it in a function makes it easier to see where we're doing it in case we need to change the implementation later.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20200728103744.6909-2-peter.maydell@linaro.org
Diffstat (limited to 'target/lm32')
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