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[Qemu-devel] [PATCH V1 02/10] qemu-clk: allow to attach a clock to a dev
From: |
fred . konrad |
Subject: |
[Qemu-devel] [PATCH V1 02/10] qemu-clk: allow to attach a clock to a device |
Date: |
Thu, 6 Oct 2016 00:10:56 +0200 |
From: KONRAD Frederic <address@hidden>
This allows to attach a clock to a DeviceState.
Contrary to gpios, the clock pins are not contained in the DeviceState but
with the child property so they can appears in the qom-tree.
Signed-off-by: KONRAD Frederic <address@hidden>
---
include/qemu/qemu-clock.h | 24 +++++++++++++++++++++++-
qemu-clock.c | 23 +++++++++++++++++++++++
2 files changed, 46 insertions(+), 1 deletion(-)
diff --git a/include/qemu/qemu-clock.h b/include/qemu/qemu-clock.h
index e7acd68..1d56a2e 100644
--- a/include/qemu/qemu-clock.h
+++ b/include/qemu/qemu-clock.h
@@ -33,8 +33,30 @@
typedef struct qemu_clk {
/*< private >*/
Object parent_obj;
+ char *name; /* name of this clock in the device. */
} *qemu_clk;
-#endif /* QEMU_CLOCK_H */
+/**
+ * qemu_clk_attach_to_device:
+ * @dev: the device on which the clock need to be attached.
+ * @clk: the clock which need to be attached.
+ * @name: the name of the clock can't be NULL.
+ *
+ * Attach @clk named @name to the device @dev.
+ *
+ */
+void qemu_clk_attach_to_device(DeviceState *dev, qemu_clk clk,
+ const char *name);
+/**
+ * qemu_clk_get_pin:
+ * @dev: the device which contain the clock.
+ * @name: the name of the clock.
+ *
+ * Get the clock named @name located in the device @dev, or NULL if not found.
+ *
+ * Returns the clock named @name contained in @dev.
+ */
+qemu_clk qemu_clk_get_pin(DeviceState *dev, const char *name);
+#endif /* QEMU_CLOCK_H */
diff --git a/qemu-clock.c b/qemu-clock.c
index ceea98d..0ba6caf 100644
--- a/qemu-clock.c
+++ b/qemu-clock.c
@@ -25,6 +25,7 @@
#include "qemu/qemu-clock.h"
#include "hw/hw.h"
#include "qemu/log.h"
+#include "qapi/error.h"
#ifndef DEBUG_QEMU_CLOCK
#define DEBUG_QEMU_CLOCK 0
@@ -36,6 +37,28 @@
} \
} while (0);
+void qemu_clk_attach_to_device(DeviceState *dev, qemu_clk clk,
+ const char *name)
+{
+ assert(name);
+ assert(!clk->name);
+ object_property_add_child(OBJECT(dev), name, OBJECT(clk), &error_abort);
+ clk->name = g_strdup(name);
+}
+
+qemu_clk qemu_clk_get_pin(DeviceState *dev, const char *name)
+{
+ gchar *path = NULL;
+ Object *clk;
+ bool ambiguous;
+
+ path = g_strdup_printf("%s/%s", object_get_canonical_path(OBJECT(dev)),
+ name);
+ clk = object_resolve_path(path, &ambiguous);
+ g_free(path);
+ return QEMU_CLOCK(clk);
+}
+
static const TypeInfo qemu_clk_info = {
.name = TYPE_CLOCK,
.parent = TYPE_OBJECT,
--
2.5.5
- [Qemu-devel] [PATCH V1 00/10] Clock framework API., fred . konrad, 2016/10/05
- [Qemu-devel] [PATCH V1 01/10] qemu-clk: introduce qemu-clk qom object, fred . konrad, 2016/10/05
- [Qemu-devel] [PATCH V1 02/10] qemu-clk: allow to attach a clock to a device,
fred . konrad <=
- [Qemu-devel] [PATCH V1 03/10] qemu-clk: allow to bind two clocks together, fred . konrad, 2016/10/05
- [Qemu-devel] [PATCH V1 04/10] qemu-clk: introduce an init array to help the device construction, fred . konrad, 2016/10/05
- [Qemu-devel] [PATCH V1 05/10] qdev-monitor: print the device's clock with info qtree, fred . konrad, 2016/10/05
- [Qemu-devel] [PATCH V1 06/10] docs: add qemu-clock documentation, fred . konrad, 2016/10/05