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Iglesias" , Igor Mammedov , Samuel Thibault , Paolo Bonzini , Markus Armbruster , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Mark Cave-Ayland , Thomas Huth , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Subject: [RFC PATCH 1/3] hw/qdev: Introduce QDEV_DECLARE_DEV_BUS_TYPES() macro Date: Mon, 13 Feb 2023 11:56:07 +0100 Message-Id: <20230213105609.6173-2-philmd@linaro.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230213105609.6173-1-philmd@linaro.org> References: <20230213105609.6173-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::32b; envelope-from=philmd@linaro.org; helo=mail-wm1-x32b.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Similarly to QOM OBJECT_DECLARE_TYPE() equivalent, introduce a QDev macro to declare common helpers for device sitting on a bus. Signed-off-by: Philippe Mathieu-Daudé --- include/hw/qdev-core.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h index 93718be156..dc9909a2e7 100644 --- a/include/hw/qdev-core.h +++ b/include/hw/qdev-core.h @@ -717,6 +717,34 @@ void qdev_pass_gpios(DeviceState *dev, DeviceState *container, BusState *qdev_get_parent_bus(const DeviceState *dev); +/** + * QDEV_DECLARE_DEV_BUS_TYPES: + * @DeviceInstanceType: device instance struct name + * @DeviceClassType: device class struct name + * @DEVICE_OBJ_NAME: the device name in uppercase with underscore separators + * @BusInstanceType: bus instance struct name + * @DeviceClassType: bus class struct name + * @BUS_OBJ_NAME: the bus name in uppercase with underscore separators + * + * This macro is typically used in a header file, and will: + * + * - create the typedefs for the object and class structs + * - register the type for use with g_autoptr + * - provide four standard type cast functions + * + * The device state struct, device class struct, bus state struct need + * to be declared manually. + */ +#define QDEV_DECLARE_DEV_BUS_TYPES(DeviceInstanceType, DeviceClassType, \ + DEVICE_OBJ_NAME, \ + BusInstanceType, BUS_OBJ_NAME) \ + OBJECT_DECLARE_TYPE(DeviceInstanceType, DeviceClassType, DEVICE_OBJ_NAME) \ + OBJECT_DECLARE_SIMPLE_TYPE(BusInstanceType, BUS_OBJ_NAME) \ + \ + static inline G_GNUC_UNUSED BusInstanceType * \ + DEVICE_OBJ_NAME##_GET_BUS(const DeviceInstanceType *dev) \ + { return BUS_OBJ_NAME(qdev_get_parent_bus(DEVICE(dev))); } + /*** BUS API. ***/ DeviceState *qdev_find_recursive(BusState *bus, const char *id);