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[83.42.57.116]) by smtp.gmail.com with ESMTPSA id z76sm3761140wmc.9.2020.04.21.05.16.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Apr 2020 05:16:53 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [RFC PATCH 13/17] hw/misc/bcm2835_property: Implement the 'temperature-sensor' interface Date: Tue, 21 Apr 2020 14:16:22 +0200 Message-Id: <20200421121626.23791-14-f4bug@amsat.org> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200421121626.23791-1-f4bug@amsat.org> References: <20200421121626.23791-1-f4bug@amsat.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::343; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wm1-x343.google.com X-detected-operating-system: by eggs.gnu.org: Error: [-] PROGRAM ABORT : Malformed IPv6 address (bad octet value). Location : parse_addr6(), p0f-client.c:67 X-Received-From: 2a00:1450:4864:20::343 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Peter Maydell , Thomas Huth , qemu-block@nongnu.org, qemu-trivial@nongnu.org, Michael Tokarev , Markus Armbruster , Andrew Baumann , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , qemu-arm@nongnu.org, Paolo Bonzini , Jean-Christophe Dubois , John Snow , "Dr. David Alan Gilbert" , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The BCM2835 'property' QEMU device models the serialized responses from the VideoCore firmware. As we can query the VC for its current temperatyre, let this model implement the 'temperature-sensor' interface. Signed-off-by: Philippe Mathieu-Daudé --- hw/misc/bcm2835_property.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/hw/misc/bcm2835_property.c b/hw/misc/bcm2835_property.c index bbe80affd4..dd1e9a2e03 100644 --- a/hw/misc/bcm2835_property.c +++ b/hw/misc/bcm2835_property.c @@ -12,6 +12,7 @@ #include "migration/vmstate.h" #include "hw/irq.h" #include "hw/misc/bcm2835_mbox_defs.h" +#include "hw/misc/temp-sensor.h" #include "sysemu/dma.h" #include "qemu/log.h" #include "qemu/module.h" @@ -372,6 +373,27 @@ static const VMStateDescription vmstate_bcm2835_property = { } }; +static const char *bcm2835_property_get_temp_sensor_name(TempSensor *obj, + unsigned sensor_id) +{ + return "videocore"; +} + +static float bcm2835_property_get_temp(TempSensor *obj, unsigned sensor_id) +{ + BCM2835PropertyState *s = BCM2835_PROPERTY(obj); + + return s->temp_mC / 1000; +} + +static void bcm2835_property_set_temp(TempSensor *obj, unsigned sensor_id, + float temp_C, Error **errp) +{ + BCM2835PropertyState *s = BCM2835_PROPERTY(obj); + + s->temp_mC = temp_C * 1000; +} + static void bcm2835_property_init(Object *obj) { BCM2835PropertyState *s = BCM2835_PROPERTY(obj); @@ -429,10 +451,15 @@ static Property bcm2835_property_props[] = { static void bcm2835_property_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); + TempSensorClass *tc = TEMPSENSOR_INTERFACE_CLASS(klass); device_class_set_props(dc, bcm2835_property_props); dc->realize = bcm2835_property_realize; dc->vmsd = &vmstate_bcm2835_property; + tc->sensor_count = 1; + tc->get_name = bcm2835_property_get_temp_sensor_name; + tc->set_temperature = bcm2835_property_set_temp; + tc->get_temperature = bcm2835_property_get_temp; } static TypeInfo bcm2835_property_info = { @@ -441,6 +468,10 @@ static TypeInfo bcm2835_property_info = { .instance_size = sizeof(BCM2835PropertyState), .class_init = bcm2835_property_class_init, .instance_init = bcm2835_property_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_TEMPSENSOR_INTERFACE }, + { } + }, }; static void bcm2835_property_register_types(void)